Note: Descriptions are shown in the official language in which they were submitted.
PCT/CN2016/108103
ENGLISH TRANSLATION
DUST CUP ASSEMBLY AND HANDHELD CLEANER HAVING SAME
TECHNICAL FIELD
The present disclosure relates to a field of cleaning machine, and more
particularly to a dust cup
assembly and a handheld cleaner having the same.
BACKGROUND
As to a handheld cleaner in the related art, a negative pressure device is
generally provided inside
a handle, such that the handle has a large volume and weight, which is not
only inconvenient but also
laborious for handholding with little comfort. In addition, as to some other
handheld cleaners in the
related art, although the negative pressure device is provided in a cup
casing, it is encircled or
surrounded by a dust collecting chamber in an entire circumference thereof,
such that the negative
pressure device is difficult to disassemble and maintain.
SUMMARY
The present disclosure aims to solve at least one of the problems existing in
the related art. To
this end, the present disclosure provides a dust cup assembly, which has a
compact overall structure
and facilitates disassembly of a negative pressure device.
The present disclosure further provides a handheld cleaner having the above-
described dust cup
assembly.
The dust cup assembly according to a first aspect of the present disclosure,
includes a casing
having a central chamber, a dedusting chamber and a dust collecting chamber,
in which the central
chamber is configured to have an upright columnar shape and includes an air
exhaust chamber and a
mounting chamber in communication with each other in an up-and-down direction,
the dedusting
chamber is configured to have a closed annular cross section and surrounds the
air exhaust chamber
by one circle, the dust collecting chamber is located below the dedusting
chamber, has a non-closed
annular cross section and surrounds the mounting chamber by less than a
circle; a negative pressure
device, in which at least a majority of the
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negative pressure device is provided in the mounting chamber and used to suck
airflow from the
environment into the casing; and a dedusting device provided in the dedusting
chamber to remove
dust from the sucked airflow.
The dust cup assembly according to the present disclosure, has a compact
overall structure and
facilitates disassembly of the negative pressure device.
According to some embodiments of the present disclosure, a lower portion of
the air exhaust
chamber is configured as an expansion pipe segment, and an upper end of the
negative pressure device
extends into the expansion pipe segment.
According to some embodiments of the present disclosure, the dedusting device
includes a
plurality of cyclones provided around the air exhaust chamber and located
directly above the dust
collecting chamber, in which, each cyclone is configured as a conical tube
having a tangential inlet in
a side wall and a tapered bottom.
According to some embodiments of the present disclosure, the dedusting device
further includes
a filtration tube fitted over the plurality of cyclones, the filtration tube
has a filtration hole and divides
the dedusting chamber into a second cyclone chamber and a first cyclone
chamber located at an inner
side and an outer side of the filtration tube respectively, and the plurality
of cyclones are located in the
second cyclone chamber.
According to some embodiments of the present disclosure, the dust collecting
chamber includes a
first dust collecting chamber located directly below the first cyclone chamber
and in communication
with the first cyclone chamber, and a second dust collecting chamber located
directly below the
second cyclone chamber and in communication with the plurality of cyclones,
and the first dust
collecting chamber and the second dust collecting chamber are not in
communication with each other.
According to some embodiments of the present disclosure, top ends of the first
dust collecting
chamber and the second dust collecting chamber are both opened to serve as
inlets, and bottom ends
of the first dust collecting chamber and the second dust collecting chamber
are both opened to serve as
outlets.
According to some embodiments of the present disclosure, a bottom wall of the
second dust
collecting chamber is configured as an inclined wall with a high center and
two low ends, and the two
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ends of the inclined wall are opened to serve as outlets of the second dust
collecting chamber.
According to some embodiments of the present disclosure, the casing includes a
dust cup
including a base and a cup casing, in which, the cup casing is configured to
have a non-closed annular
across section with an opening so as to define the dust collecting chamber
having the non-closed
annular cross section in the cup casing, the cup casing is disposed at a top
of the base and a mounting
space located outside the dust collecting chamber is defined between an inner-
ring wall face of the
cup casing and a top wall of the base, a top of the mounting space is directly
opened, and a side of
the mounting space is opened by the opening; and a cabinet, in which, the
central chamber and the
dedusting chamber are both formed in the cabinet and a portion of the cabinet
for containing the
negative pressure device is mounted at the mounting space via an opened
portion of the mounting
space.
According to some embodiments of the present disclosure, the dust cup further
includes the cup
cover, the cup cover is disposed at a top of the cup casing and covers on the
dust collecting chamber,
the cup cover has a dust inlet in communication with the dust collecting
chamber, the dust inlet
includes a first dust inlet communicating the first dust collecting chamber
with the first cyclone
chamber, and a second dust inlet communicating the second dust collecting
chamber with the plurality
of cyclones, and a lower end of each cyclone penetrates through a bottom wall
of the tube casing and
is inserted in the corresponding second dust inlet while being fitted
therewith.
According to some embodiments of the present disclosure, the base includes a
base body and a
base bottom cover, the base bottom cover is connected to a bottom of the base
body and capable of
being opened and closed to define a buffering chamber between the base bottom
cover and the base
body, a top wall of the base body has the communication hole, a bottom end
edge of an outer-ring wall
face is connected to an edge of the communication hole in a butt joint to
communicate the first dust
collecting chamber with the buffering chamber, bottom end edges of the inner-
ring wall face and a
chamber-partition wall are inserted in the communication hole while being
fitted therewith and abut
against the base bottom cover to isolate the second dust collecting chamber
from the first dust
collecting chamber and the buffering chamber.
According to some embodiments of the present disclosure, the cabinet includes
an upper body
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and a lower body disposed at a bottom of the upper body, in which, the
dedusting chamber and the air
exhaust chamber are both formed in the upper body, the mounting chamber is
formed in the lower
body, the lower body is mounted at the mounting space via the opening of the
mounting space, and the
upper body is supported on the top of the cup casing.
According to some embodiments of the present disclosure, the lower body
includes a protection
casing plate and an appearance casing plate, the protection casing plate is
disposed adjacent to the
inner-ring wall face and matched with a shape of the inner-ring wall face, the
appearance casing plate
is located at a side of the protection casing plate away from the inner-ring
wall face, and the mounting
chamber is defined between the appearance casing plate and the protection
casing plate.
According to some embodiments of the present disclosure, two side edges of the
protection
casing plate extend to be connected to two side edges of the cup casing in a
ring length direction
thereof respectively and correspondingly.
According to some embodiments of the present disclosure, the mounting chamber
is further
provided with an air-exhaust filtration device, the air-exhaust filtration
device is located between the
negative pressure device and the appearance casing plate and an air exhaust
space is defined between
the air-exhaust filtration device and the appearance casing plate, in which,
the base is supported at a
bottom of the lower body and avoids a bottom of the air exhaust space.
According to some embodiments of the present disclosure, at least one of the
protection casing
plate and the appearance casing plate has a sliding groove extending in an up-
and-down direction, the
air-exhaust filtration device has an elastic sliding sheet, and the elastic
sliding sheet is slidably fitted
in the sliding groove and the elastic sliding sheet and has an interference
fit with the sliding groove.
According to some embodiments of the present disclosure, an isolating screen
is provided in the
cabinet, and the isolating screen is interposed between the negative pressure
device and the
air-exhaust filtration device.
According to some embodiments of the present disclosure, the cabinet is
detachably connected to
the dust cup via a quick release assembly.
According to some embodiments of the present disclosure, the cup casing is
disposed in front of
a top of the base, and the quick release assembly includes a first assembly
disposed at a front top of
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the dust cup and a second assembly disposed at a rear bottom of the dust cup.
According to some embodiments of the present disclosure, the first assembly
includes a snap
plate disposed at a front bottom of the cabinet, extending downwards and
having a snap hole; and a
snap piece disposed at the front top of the dust cup and extending forward
into the snap hole to limit a
detachment of the dust cup and the cabinet in a direction other than a front-
and-rear direction.
According to some embodiments of the present disclosure, the second assembly
includes a first
snap hook disposed at a rear bottom of the cabinet and having a front end bent
downward to define a
hooking groove; a second snap hook disposed at the rear bottom of the dust cup
and having a rear end
bent upward to extends into the hooking groove so as to limit a detachment of
the dust cup and the
cabinet in a front-rear direction; a movable latch disposed at the rear bottom
of the cabinet, movable
in a front-rear direction, and having a front end abutting against a bottom of
the second snap hook to
prevent the second snap hook from moving downward out of the hooking groove;
and an unlocking
button capable of being pressed and disposed to the cabinet and fitted with
the movable latch, and the
movable latch moves backward to release the position limit for the second snap
hook when the
unlocking button is pressed.
According to some embodiments of the present disclosure, the upper body
includes a tube casing
and an air exhaust pipe, in which, the air exhaust pipe is provided in the
tube casing and the dedusting
chamber is defined between the air exhaust pipe and the tube casing, a bottom
of the air exhaust pipe
penetrates through a bottom wall of the tube casing and the air exhaust
chamber in communication
with the mounting chamber is defined in the air exhaust pipe.
A handheld cleaner according to a second aspect of the present disclosure,
includes an
above-described dust cup assembly, and a handle assembly disposed on the dust
cup assembly and
used for handholding.
According to some embodiments of the present disclosure, the handheld cleaner
further includes
an extension pipe including a pipe body member, in which, the pipe body member
is configured as a
hollow pipe with two open ends and has one end connected to the dust suction
inlet of the casing; and
a rotating member, in which, the rotating member is disposed at the other end
of the pipe body
member and integrally formed with the pipe body member, the rotating member is
provided with an
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inlet hole in communication with an interior of the pipe body member to make
the dust enter the pipe
body member via the inlet hole, and then enter the dust suction inlet along
the pipe body member; the
rotating member is rotatable with respect to the pipe body member and changes
an orientation of the
inlet hole with respect to the pipe body member during rotating.
According to some embodiments of the present disclosure, the rotating member
is connected to
the pipe body member via a pivoting shaft, or the pipe body member is
connected to the rotating
member through a spherical fit.
According to some embodiments of the present disclosure, the handheld cleaner
further includes
an extension pipe, the extension pipe is configured as a hollow pipe with two
open ends, one end of
the extension pipe is detachably communicated with the dust suction inlet of
the casing and the other
end thereof has a cleaning member integrally formed with the extension pipe.
According to some embodiments of the present disclosure, the handheld cleaner
further includes
a telescopic hose having a first end extending into and fixed in the extension
pipe and a second end
detachably connected to the dust suction inlet, the first end of the extension
pipe is detachably
connected to the casing and the telescopic hose is accommodated in an interior
of the extension pipe
when the extension pipe is connected to the casing.
According to some embodiments of the present disclosure, the handheld cleaner
further includes
a first detection device, in which, the first detection device is disposed to
the casing and used to detect
a motion state of the casing; a control device, in which, the control device
is connected to the first
detection device and the negative pressure device and configured to control a
working state of the
handheld cleaner according to information detected by the detection device.
According to some embodiments of the present disclosure, the control device is
configured to
control the negative pressure device to increase a suction strength if the
first detection device detects
that a motion speed of the casing rises, and control the negative pressure
device to decrease the
suction strength if the first detection device detects that the motion speed
of the casing drops.
According to some embodiments of the present disclosure, the control device is
configured to
control the negative pressure device to shut down if the first detection
device detects that the casing
has never moved in a first predetermined duration, the control device is
configured to control the
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negative pressure device to turn on if the first detection device detects
displacement of the casing in a
second predetermined duration after a shutdown of the negative pressure
device, and the control
device is configured to control the handheld cleaner to turn off if the first
detection device detects no
displacement of the casing in the second predetermined duration after the
shutdown of the negative
pressure device.
According to some embodiments of the present disclosure, the casing has an air
intake passage in
communication with the dedusting chamber, the handheld cleaner further
includes a second detection
device used to detect a dust concentration in the air intake passage; and a
control device connected to
the second detection device and the negative pressure device and configured to
control the working
state of the handheld cleaner according to the information detected by the
second detection device.
According to some embodiments of the present disclosure, the control device is
configured to
control the negative pressure device to increase the suction strength thereof
if the second detection
device detects that the dust concentration rises, and control the negative
pressure device to decrease
the suction strength thereof if the second detection device detects that the
dust concentration drops.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other aspects and advantages of embodiments of the present
disclosure will become
apparent and more readily appreciated from the following descriptions made
with reference to the
drawings, in which:
Fig. 1 is a sectional view of a handheld cleaner according to an embodiment of
the present
disclosure;
Fig. 2 is a schematic view showing a working principle of the handheld cleaner
shown in Fig. 1;
Fig. 3 is a sectional view of a dust cup assembly of a handheld cleaner
according to another
embodiment of the present disclosure;
Fig. 4 is a schematic view showing a working principle of the handheld cleaner
shown in Fig. 3;
Fig. 5 is a schematic view of a part of a casing shown in Fig. 4;
Fig. 6 is a schematic view of a rest part of the casing shown in Fig. 4;
Fig. 7 is a schematic view showing a cyclone separating device and a device
housing in Fig. 5, in
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which the device housing and the cyclone separating device are in one piece;
Fig. 8 is a bottom view of the device housing and the cyclone separating
device shown in Fig. 7;
Fig. 9 is a sectional view of the device housing and the cyclone separating
device shown in Fig.
7;
Fig. 10 is a schematic view showing a device housing and a cyclone separating
device of a
handheld cleaner according to another embodiment of the present disclosure, in
which the device
housing and the cyclone separating device are in one piece;
Fig. 11 is a schematic view of an extension pipe according to an embodiment of
the present
disclosure;
Fig. 12 is a partially enlarged view of the extension pipe shown in Fig. 11;
Fig. 13 is a partially enlarged view of the extension pipe of Fig. 12 in a use
state;
Fig. 14 is an assembling view of an extension pipe and a dust cup assembly
according to some
embodiments of the present disclosure;
Fig. 15 is an assembling view of an extension pipe and a dust cup assembly
according to some
other embodiments of the present disclosure;
Fig. 16 is a working state diagram of a handheld cleaner according to an
embodiment of the
present disclosure, in which a detection device is exploded;
Fig. 17 is another working state diagram of a handheld cleaner according to
the embodiment of
the present disclosure;
Fig. 18 is another working state diagram of a handheld cleaner according to
the embodiment of
the present disclosure; and
Fig. 19 is a schematic view of a handheld cleaner according to some
embodiments of the present
disclosure;
Fig. 20 is an exploded view of a handheld cleaner according to an embodiment
of the present
disclosure;
Fig. 21 is an exploded view of the handheld cleaner shown in Fig. 20, in which
a power supply
device is removed from the handheld cleaner;
Fig. 22 is a perspective view of a handheld cleaner according to an embodiment
of the present
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disclosure;
Fig. 23 is a partially exploded view of the handheld cleaner shown in Fig. 22;
Fig. 24 is a schematic view of a dust cup assembly shown in Fig. 23;
Fig. 25 is a schematic view of the dust cup assembly shown in Fig. 24, in
which a cup cover is
removed from the dust cup assembly;
Fig. 26 is a sectional view of a dust cup shown in Fig. 25;
Fig. 27 is another sectional view of the dust cup shown in Fig. 25;
Fig. 28 is a partially exploded view of the handheld cleaner shown in Fig. 23;
Fig. 29 is a partially exploded view of the handheld cleaner shown in Fig. 23;
Fig. 30 is a side sectional view of the handheld cleaner shown in Fig. 22;
Fig. 31 is another side sectional view of the handheld cleaner shown in Fig.
22;
Fig. 32 is a bottom sectional view of the handheld cleaner shown in Fig. 22;
Fig. 33 is a front sectional view of a handheld cleaner according to an
embodiment of the present
disclosure.
DETAILED DESCRIPTION
Embodiments of the present disclosure will be described in detail and examples
of the
embodiments will be illustrated in the drawings, where same or similar
reference numerals are used to
indicate same or similar members or members with same or similar functions.
The embodiments
described herein with reference to drawings are illustrative, which are used
to illustrate the present
disclosure, but shall not be construed to limit the present disclosure.
The following disclosure provides many different embodiments or examples to
realize different
structures of the present disclosure. To simplify the disclosure of the
present disclosure, components
and configurations in particular examples are elaborated. Of course, they are
illustrative, and are not
intended to limit the present disclosure. Moreover, reference numbers and/or
letters may be repeated
in different examples of the present disclosure for the purpose of simplicity
and clarity, which shall
not be constructed to indicate the relationships among various embodiments
and/or configurations. In
addition, the present disclosure provides examples of various specific
processes and materials, but
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applicability of other processes and/or utilization of other materials are
conceivable for those skilled
in the art.
A handheld cleaner according to some specific embodiments of the present
disclosure will
be described below.
In some embodiments of the present disclosure, the handheld cleaner includes a
dust cup
assembly, including: a casing, a negative pressure device disposed in the
casing and configured to
suck an airflow from an environment into the casing, and a dedusting device
disposed in the casing
and configured to remove dust from the sucked airflow; and a handle assembly,
including: a handle
casing disposed to the casing and having a holding portion for user
handholding, and a power supply
device disposed at a top of the holding portion, and/or in the holding
portion, and/or at a position in
the handle casing opposite to the holding portion and electrically connected
to the negative pressure
device.
In some embodiments of the present disclosure, the handle casing has a finger
gripping portion
and a mounting portion configured to be connected to the dust cup assembly,
the holding portion and
the mounting portion are located at two sides of the finger gripping portion,
and the power supply
device is disposed in the mounting portion and/or in the holding portion.
In some embodiments of the present disclosure, a length direction of the power
supply device
disposed in the holding portion is identical to a length direction of the
holding portion.
In some embodiments of the present disclosure, a length direction of the power
supply device
disposed in the mounting portion is identical to a length direction of the
mounting portion.
In some embodiments of the present disclosure, the casing has an upright tube
shape, a length
direction of the mounting portion is identical to an axial direction of the
casing, and the mounting
portion is connected to a radial side of the casing.
In some embodiments of the present disclosure, the mounting portion is
detachably connected to
the dust cup assembly.
In some embodiments of the present disclosure, the finger gripping portion is
configured as a
gripping hole, the handle casing is configured as an annular casing, and the
gripping hole is defined by
an inner ring of the handle casing.
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In some embodiments of the present disclosure, the handle casing further
includes a handle top
and a handle bottom connected between the mounting portion and the holding
portion and disposed
opposite to each other, and an electric control board connected to the power
supply device is disposed
in the handle top and/or the handle bottom.
In some embodiments of the present disclosure, the handle casing includes: the
holding portion
spaced apart from the casing; an upper arm portion between an upper end of the
holding portion and
the casing; and a lower arm portion connected between a lower end of the
holding portion and the
casing, in which the power supply device is disposed to an inner top of the
upper arm portion or an
outer top of the upper arm portion.
In some embodiments of the present disclosure, the upper end of the holding
portion is connected
to a center of a bottom of the upper arm portion, and the lower end of the
holding portion extends in a
direction running away from the casing.
In some embodiments of the present disclosure, the upper arm portion is a
rectangle shell
disposed horizontally, and the power supply device is disposed in the upper
arm portion.
In some embodiments of the present disclosure, the casing has an electrical
connection port, and
the power supply device is disposed to the outer top of the upper arm portion
and electrically plugged
in the electrical connection port.
In some embodiments of the present disclosure, the lower arm portion obliquely
extends upwards
in a direction from the casing to the holding portion.
In some embodiments of the present disclosure, at least part of the upper arm
portion, at least part
of the lower arm portion and at least part of the casing are integrally
molded.
In some embodiments of the present disclosure, at least part of the holding
portion, at least part
of the upper arm portion and at least part of the lower arm portion are
integrally molded.
In some embodiments of the present disclosure, an outer surface of the casing
has an upright tube
shape, the upper arm portion is connected to a top end of a circumferential
surface of the casing, and
the lower arm portion is connected to a bottom end of the circumferential
surface of the casing.
In some embodiments of the present disclosure, an outer surface of the casing
has the upright
tube shape, a center line of the holding portion, a center line of the upper
arm portion, a center line of
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the lower arm portion and an axis of the casing are located in a same plane.
In some embodiments of the present disclosure, a central chamber, a dedusting
chamber and a
dust collecting chamber are provided in the casing; the central chamber has an
upright columnar shape
and includes an air exhaust chamber and a mounting chamber in communication
with each other in an
up-and-down direction; the dedusting chamber has a closed annular cross
section and surrounds the
air exhaust chamber by one circle; the dust collecting chamber is located
below the dedusting chamber,
and the dust collecting chamber has a non-closed annular cross section and
surrounds the mounting
chamber by less than one circle, in which the dedusting device is disposed in
the dedusting chamber,
and the negative pressure device is disposed in the mounting chamber and is in
communication with
the air exhaust chamber.
In some embodiments of the present disclosure, the casing includes: a dust cup
defining the dust
collecting chamber, and a cabinet mounted on the dust cup and defining the
central chamber and the
dedusting chamber; the dust cup includes a base and a cup casing, and the cup
casing has a non-closed
annular cross section with an opening so as to define the dust collecting
chamber whose cross section
has the non-closed annular shape in the cup casing; the cup casing is disposed
on a top of the base,
and a mounting space located outside the dust collecting chamber is defined
between an inner-ring
wall face of the cup casing and a top wall of the base, in which a top portion
of the mounting space is
directly opened, and a side portion of the mounting portion is opened by the
opening.
In some embodiments of the present disclosure, the central chamber, the
dedusting chamber and
the dust collecting chamber are provided in the casing; the central chamber
has an upright columnar
shape and includes an air exhaust chamber and a mounting chamber in
communication with each
other in an up-and-down direction; the dedusting chamber has a closed annular
cross section and
surrounds the air exhaust chamber by one circle; the dust collecting chamber
is located below the
dedusting chamber, and the dust collecting chamber has a closed annular cross
section and surrounds
the mounting chamber by one circle, in which the dedusting device is disposed
in the dedusting
chamber, and the negative pressure device is disposed in the mounting chamber
and is in
communication with the air exhaust chamber.
In some embodiments of the present disclosure, a device housing having a tube
shape is provided
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in the casing, an outer end surface of the device housing at an axial side
thereof abuts against or
extends beyond a part of an inner surface of the casing, the dedusting chamber
is defined between the
inner surface of the casing and an outer circumferential surface of the device
housing and surrounds
the device housing in a circumferential direction of the device housing, and
the central chamber is
defined in the device housing.
In some embodiments of the present disclosure, the casing includes: a mounting
frame, in which
the dedusting device is supported on a top of the mounting frame, and the
negative pressure device is
mounted to a bottom of the mounting frame; and a dust collecting cup covered
outside the negative
pressure device and detachably connected to the mounting frame.
The handheld cleaner according to some specific embodiments of the present
disclosure will
be described below.
In some embodiments of the present disclosure, the dust cup assembly includes
a casing
including a cup body with an open top, and a cleaner cover disposed at a top
of the cup body and
capable of being opened and closed; a negative pressure device provided in the
cup body and used to
suck airflow from the environment into the casing; and a dedusting device
provided in the cup body,
located above the negative pressure device and withdrawable from the top of
the cup body when the
cleaner cover is opened.
In some embodiments of the present disclosure, the cleaner cover is a circular
cleaner cover and
has a first end and a second end located at two ends thereof in a diameter
direction, in which, the first
end is articulated with an upper end edge of the cup body, and the second end
is connected to the
upper end edge of the cup body by a snap connection.
In some embodiments of the present disclosure, the cleaner cover is detachably
mounted on the
cup body by a snap connection or a threaded connection.
In some embodiments of the present disclosure, a central chamber and a
dedusting chamber
surrounding the central chamber are provided in the cup body, the negative
pressure device is
provided in the central chamber, the dedusting device is provided in the
dedusting chamber, a
communicating chamber is provided in the cleaner cover, an end surface at a
side of the cleaner cover
facing towards the cup body has an air inlet communicating the communicating
chamber with the
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dedusting chamber and an air outlet communicating the communicating chamber
with the central
chamber.
In some embodiments of the present disclosure, the cleaner cover includes an
inner cover
disposed at the top of the cup body, an outer cover disposed at the top of the
cup body and covering
over the inner cover, and an in-cover air passage member detachably provided
between the inner
cover and the outer cover or integrally formed in an inner surface of the
outer cover, and the
communicating chamber is defined between the inner cover and the in-cover air
passage member.
In some embodiments of the present disclosure, the cleaner cover further
includes an in-cover
filter detachably provided in the communicating chamber to filter the airflow
flowing into the
communicating chamber.
In some embodiments of the present disclosure, the end face at the side of the
cleaner cover is
provided with a detachable filter covering on the air inlet.
In some embodiments of the present disclosure, a central chamber, a dedusting
chamber and a
dust collecting chamber are provided in the cup body, the central chamber is
configured to have an
upright columnar shape and includes an air exhaust chamber and a mounting
chamber in
communication with each other in an up-and-down direction, the dedusting
chamber has a closed
annular cross section and surrounds the air exhaust chamber by one circle, the
dust collecting chamber
is located below the dedusting chamber, has a non-closed annular cross
section, and surrounds the
mounting chamber by less than one circle, in which, the dedusting device is
provided in the dedusting
chamber, and the negative pressure device is provided in the mounting chamber
and is in
communication with the air exhaust chamber.
In some embodiments of the present disclosure, the cup body includes a dust
cup defining the
dust collecting chamber and a cabinet disposed on the dust cup and defining
the central chamber and
the dedusting chamber, in which, the dust cup includes a base and a cup
casing, the cup casing is
configured to have the non-closed annular cross section with an opening so as
to define the dust
collecting chamber having the non-closed annular cross section in the cup
casing, the cup casing is
disposed at a top of the base, a mounting space located outside the dust
collecting chamber is defined
between an inner-ring wall face of the cup casing and a top wall of the base,
a top of the mounting
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space is directly opened, and a side of the mounting space is opened by the
opening.
In some embodiments of the present disclosure, the cabinet includes an upper
body and a lower
body disposed at a bottom of the upper body, in which, the dedusting chamber
and the air exhaust
chamber are both formed in the upper body, the mounting chamber is formed in
the lower body, the
lower body is mounted at the mounting space via an opened portion of the
mounting space, and the
upper body is supported on the top of the cup casing.
In some embodiments of the present disclosure, the upper body includes a tube
casing and an air
exhaust pipe, in which, the air exhaust pipe is provided in the tube casing
and the dedusting chamber
is defined between the air exhaust pipe and the tube casing, a bottom of the
air exhaust pipe penetrates
through a bottom wall of the tube casing and the air exhaust chamber in
communication with the
mounting chamber is defined in the air exhaust pipe.
In some embodiments of the present disclosure, a lower portion of the air
exhaust pipe is
configured as an expansion pipe segment, and an upper end of the negative
pressure device extends
into the expansion pipe segment.
In some embodiments of the present disclosure, a central chamber, a dedusting
chamber and a
dust collecting chamber are provided in the cup body, the central chamber is
configured to have an
upright columnar shape and includes an air exhaust chamber and a mounting
chamber in
communication with each other in an up-and-down direction, the dedusting
chamber has a closed
annular cross section and surrounds the air exhaust chamber by one circle, the
dust collecting chamber
is located below the dedusting chamber, has a closed annular cross section and
surrounds the
mounting chamber by one circle, in which, the dedusting device is provided in
the dedusting chamber,
and the negative pressure device is provided in the mounting chamber and is in
communication with
the air exhaust chamber.
In some embodiments of the present disclosure, a tube-shaped device housing is
provided in the
cup body, an axial outer end face of the device housing abuts against or
penetrates through a partial
inner surface of the cup body, the dedusting chamber is defined between the
inner surface of the cup
body and an outer circumferential surface of the device housing and surrounds
the device housing in a
circumferential direction of the device housing, and the central chamber is
defined in the device
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housing.
In some embodiments of the present disclosure, the cup body includes a
mounting frame, in
which, the dedusting device is supported at a top of the mounting frame, and
the negative pressure
device is mounted to a bottom of the mounting frame; and a dust collecting cup
covering over the
negative pressure device and detachably connected to the mounting frame.
In some embodiments of the present disclosure, the mounting frame includes a
ring, a top end
cup ring of the dust collecting cup is connected to the ring in a butt
connection; a limiting and
supporting portion provided in the ring and fitted with the dedusting device
to limit a displacement of
the dedusting device in directions other than an upward direction; and a fixed
mounting portion
provided in the ring and used to fixedly mount the negative pressure device.
In some embodiments of the present disclosure, the dedusting device has a
limiting hole
penetrating therethrough in an up-and-down direction and a support groove with
an open bottom, the
support groove includes two support sub-grooves disposed at two radial sides
of the limiting hole, the
limiting and supporting portion includes a limiting post and a support beam,
in which, the limiting
post is provided in the ring and fitted in the limiting hole in an insertion
manner, the support beam
includes two support sub-beams disposed at two radial sides of the limiting
post respectively, and the
two support sub-beams are correspondingly provided in the two support sub-
grooves respectively and
support top walls of the corresponding support sub-grooves.
In some embodiments of the present disclosure, the handheld cleaner includes a
above-described
dust cup assembly, and a handle assembly disposed on the dust cup assembly and
used for
handholding.
The handheld cleaner according to some specific embodiments of the present
disclosure will
be described below.
In some embodiments of the present invention, the dust cup is used for the
cleaner having the
negative pressure device, the dust cup includes a base and a cup casing, in
which the cup casing has a
non-closed annular cross section with an opening so as to define a dust
collecting chamber having a
non-closed annular cross section in the cup casing, the cup casing is disposed
at a top of the base, a
mounting space located outside the dust collecting chamber is defined between
an inner-ring wall face
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of the cup casing and a top wall of the base, a top of the mounting space is
directly opened, and a side
of the mounting space is opened by an opening, and the negative pressure
device is mounted to the
mounting space via an opened portion of the mounting space.
In some embodiments of the present invention, the inner-ring wall face of the
cup casing is
configured as an arc-shaped plate formed by vertically stretching an arc-
shaped curve.
In some embodiments of the present invention, the base is configured to have a
flat cylindrical
shape, and an outer-ring wall face of the cup casing is configured as an arc-
shaped plate formed by
vertically stretching an arc of a base edge.
In some embodiments of the present invention, a central angle of the above-
described arc is
1800-2000
.
In some embodiments of the present invention, the cup casing is provided with
a
chamber-partition wall, the chamber-partition wall is disposed between the
inner-ring wall face and an
outer-ring wall face and divides the dust collecting chamber into a first dust
collecting chamber and a
second dust collecting chamber located at two sides of the chamber-partition
wall and isolated
mutually, top ends of the first dust collecting chamber and the second dust
collecting chamber are both
opened as inlets, and bottom ends of the first dust collecting chamber and the
second dust collecting
chamber are both opened as outlets.
In some embodiments of the present invention, a bottom wall of the second dust
collecting
chamber is configured as an inclined wall with a high center and two low ends,
and the two ends of
the inclined wall are opened as outlets of the second dust collecting chamber.
In some embodiments of the present invention, the chamber-partition wall
includes a vertical
wall, in which, the vertical wall is vertically disposed between the inner-
ring wall face and the
outer-ring wall face, and a top end of the vertical wall is flush with a top
end of the dust collecting
chamber; and a horizontal wall connected between a bottom end of the vertical
wall and the inner-ring
wall face to define the second dust collecting chamber among the horizontal
wall, the vertical wall and
the inner-ring wall face.
In some embodiments of the present invention, a buffering chamber in
communication with the
dust collecting chamber is provided in the base.
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In some embodiments of the present invention, the base includes a base body
and a base bottom
cover, the base bottom cover is connected to a bottom of the base body and
capable of being opened
and closed to define the buffering chamber between the base bottom cover and
the base body, a top
wall of the base body has a communication hole, a bottom end edge of the outer-
ring wall face is
connected to an edge of the communication hole in a butt joint, so as to
communicate the first dust
collecting chamber with the buffering chamber, bottom end edges of the inner-
ring wall face and the
chamber-partition wall are inserted in the communication hole while being
fitted therewith and abut
against the base bottom cover, so as to isolate the second dust collecting
chamber from the first dust
collecting chamber and the buffering chamber.
In some embodiments of the present invention, the dust cup further includes a
cup cover, the cup
cover is disposed at the top of cup casing, covered on the dust collecting
chamber, and provided with a
dust inlet in communication with the dust collecting chamber.
In some embodiments of the present invention, a dust cup assembly includes an
above-described
dust cup; a cabinet detachably mounted to the dust cup; a dedusting device
provided in the cabinet and
used to remove dust from the airflow sucked into the cabinet; a negative
pressure device provided in
the cabinet and used to suck airflow from the environment into the cabinet.
In some embodiments of the present invention, a handheld cleaner includes an
above-described
dust cup assembly; and a handle assembly disposed on the dust cup assembly and
used for
handholding.
The handheld cleaner according to some specific embodiments of the present
disclosure will
be described below.
In some embodiments of the present disclosure, the dust cup assembly includes
a casing having a
central chamber, a dedusting chamber and a dust collecting chamber, wherein
the central chamber is
configured to have an upright columnar shape and comprises an air exhaust
chamber and a mounting
chamber in communication with each other in an up-and-down direction, the
dedusting chamber has a
closed annular cross section and surrounds the air exhaust chamber by one
circle, the dust collecting
chamber is located below the dedusting chamber, has a non-closed annular cross
section, and
surrounds the mounting chamber by less than a circle; a negative pressure
device, in which at least a
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majority of the negative pressure device is provided in the mounting chamber
and used to suck airflow
from the environment into the casing; and a dedusting device provided in the
dedusting chamber to
remove dust from the sucked airflow.
In some embodiments of the present disclosure, a lower portion of the air
exhaust chamber is
configured as an expansion pipe segment, and an upper end of the negative
pressure device extends
into the expansion pipe segment.
In some embodiments of the present disclosure, the dedusting device includes a
plurality of
cyclones provided around the air exhaust chamber and located directly above
the dust collecting
chamber, in which, each cyclone is configured as a conical tube having a
tangential inlet in a side wall
thereof and a tapered bottom.
In some embodiments of the present disclosure, the dedusting device further
includes a filtration
tube fitted over the plurality of cyclones, the filtration tube has a
filtration hole and divides the
dedusting chamber into a second cyclone chamber and a first cyclone chamber
located at an inner side
and an outer side of the filtration tube respectively, and the plurality of
cyclones are located in the
second cyclone chamber.
In some embodiments of the present disclosure, the dust collecting chamber
includes a first dust
collecting chamber located directly below the first cyclone chamber and in
communication with the
first cyclone chamber, and a second dust collecting chamber located directly
below the second
cyclone chamber and in communication with the plurality of cyclones, and the
first dust collecting
chamber and the second dust collecting chamber are not in communication with
each other.
In some embodiments of the present disclosure, top ends of the first dust
collecting chamber and
the second dust collecting chamber are both opened to serve as inlets, and
bottom ends of the first dust
collecting chamber and the second dust collecting chamber are both opened to
serve as outlets.
In some embodiments of the present disclosure, a bottom wall of the second
dust collecting
chamber is configured as an inclined wall with a high center and two low ends,
and the two ends of
the inclined wall are opened to serve as outlets of the second dust collecting
chamber.
In some embodiments of the present disclosure, the casing includes a dust cup
including a base
and a cup casing, in which, the cup casing is configured to have a non-closed
annular across section
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with an opening so as to define the dust collecting chamber having the non-
closed annular cross
section in the cup casing, the cup casing is disposed at a top of the base and
a mounting space located
outside the dust collecting chamber is defined between an inner-ring wall face
of the cup casing and a
top wall of the base, a top of the mounting space is directly opened, and a
side of the mounting space
is opened by the opening; and a cabinet, in which, the central chamber and the
dedusting chamber are
both formed in the cabinet and a portion of the cabinet for containing the
negative pressure device is
mounted at the mounting space via an opened portion of the mounting space.
In some embodiments of the present disclosure, the dust cup further includes
the cup cover, the
cup cover is disposed at a top of the cup casing and covers on the dust
collecting chamber, the cup
cover has a dust inlet in communication with the dust collecting chamber, the
dust inlet includes a first
dust inlet communicating the first dust collecting chamber with the first
cyclone chamber, and a
second dust inlet communicating the second dust collecting chamber with the
plurality of cyclones,
and a lower end of each cyclone penetrates through a bottom wall of the tube
casing and is inserted in
the corresponding second dust inlet while being fitted therewith.
In some embodiments of the present disclosure, the base includes a base body
and a base bottom
cover, the base bottom cover is connected to a bottom of the base body and
capable of being opened
and closed to define a buffering chamber between the base bottom cover and the
base body, a top wall
of the base body has the communication hole, a bottom end edge of an outer-
ring wall face is
connected to an edge of the communication hole in a butt joint to communicate
the first dust
collecting chamber with the buffering chamber, the inner-ring wall face and a
bottom end edge of a
chamber-partition wall are inserted in the communication hole while being
fitted therewith and abut
against the base bottom cover to isolate the second dust collecting chamber
from the first dust
collecting chamber and the buffering chamber.
In some embodiments of the present disclosure, the cabinet includes an upper
body and a lower
body disposed at a bottom of the upper body, in which, the dedusting chamber
and the air exhaust
chamber are both formed in the upper body, the mounting chamber is formed in
the lower body, the
lower body is mounted at the mounting space via the opened portion of the
mounting space, and the
upper body is supported on the top of the cup casing.
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In some embodiments of the present disclosure, the lower body includes a
protection casing plate
and an appearance casing plate, the protection casing plate is disposed
adjacent to the inner-ring wall
face and matched with a shape of the inner-ring wall face, the appearance
casing plate is located at a
side of the protection casing plate far away from the inner-ring wall face,
and the mounting space is
defined between the appearance casing plate and the protection casing plate.
In some embodiments of the present disclosure, two side edges of the
protection casing plate
extend to be connected to two side edges of the cup casing in a ring length
direction thereof
respectively and correspondingly.
In some embodiments of the present disclosure, the mounting space is further
provided with an
air-exhaust filtration device, the air-exhaust filtration device is located
between the negative pressure
device and the appearance casing plate and an air exhaust space is defined
between the air-exhaust
filtration device and the appearance casing plate, in which, and the base is
supported at a bottom of
the lower body and avoids a bottom of the air exhaust space.
In some embodiments of the present disclosure, at least one of the protection
casing plate and the
appearance casing plate has a sliding groove extending in an up-and-down
direction, the air-exhaust
filtration device has an elastic sliding sheet, and the elastic sliding sheet
is slidably fitted in the sliding
groove and the elastic sliding sheet and has an interference fit with the
sliding groove.
In some embodiments of the present disclosure, an isolating screen is provided
in the cabinet and
interposed between the negative pressure device and the air-exhaust filtration
device.
In some embodiments of the present disclosure, the cabinet is detachably
connected to the dust
cup via a quick release assembly.
In some embodiments of the present disclosure, the cup casing is disposed in
front of a top of the
base, and the quick release assembly includes a first assembly disposed at a
front top of the dust cup
and a second assembly disposed at a rear bottom of the dust cup.
In some embodiments of the present disclosure, the first assembly includes a
snap plate disposed
at a front bottom of the cabinet, extending downwards and having a snap hole;
and a snap piece
disposed at the front top of the dust cup and extending forward into the snap
hole to limit a
detachment of the dust cup and the cabinet in a direction other than a front-
and-rear direction.
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In some embodiments of the present disclosure, the second assembly includes a
first snap hook
disposed at a rear bottom of the cabinet and having a front end bent downward
to define a hooking
groove; a second snap hook disposed at the rear bottom of the dust cup and
having a rear end bent
upward to extend into the hooking groove so as to limit a detachment of the
dust cup and the cabinet
in a front-rear direction; a movable latch disposed at the rear bottom of the
cabinet, movable in a
front-rear direction and having a front end abutting against a bottom of the
second snap hook to
prevent the second snap hook from moving downward out of the hooking groove;
and an unlocking
button capable of being pressed and disposed to the cabinet and fitted with
the movable latch, and the
movable latch moves backward to release the position limit for the second snap
hook when the
unlocking button is pressed.
In some embodiments of the present disclosure, the upper body includes a tube
casing and an air
exhaust pipe, in which, the air exhaust pipe is provided in the tube casing
and the dedusting chamber
is defined between the air exhaust pipe and the tube casing, a bottom of the
air exhaust pipe penetrates
through a bottom wall of the tube casing and the air exhaust chamber in
communication with the
mounting chamber is defined in the air exhaust pipe.
In some embodiments of the present disclosure, a handheld cleaner includes an
above-described
dust cup assembly, and a handle assembly disposed on the dust cup assembly and
used for
handholding.
In some embodiments of the present disclosure, the handheld cleaner further
includes an
extension pipe including a pipe body member, in which, the pipe body member is
configured as a
hollow pipe with two open ends and has one end connected to the dust suction
inlet of the casing; and
a rotating member, in which, the rotating member is disposed at the other end
of the pipe body
member and integrally formed with the pipe body member, the rotating member is
provided with an
inlet hole in communication with an interior of the pipe body member to make
the dust enter the pipe
body member via the inlet hole, and then enter the dust suction inlet along
the pipe body member; the
rotating member is rotatable with respect to the pipe body member and changes
an orientation of the
inlet hole with respect to the pipe body member during rotating.
In some embodiments of the present disclosure, the rotating member is
connected to the pipe
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body member via a pivoting shaft, or the pipe body member is connected to the
rotating member
through a spherical fit.
In some embodiments of the present disclosure, the handheld cleaner further
includes an
extension pipe, the extension pipe is configured as a hollow pipe with two
open ends, one end of the
extension pipe is detachably communicated with the dust suction inlet of the
casing and the other end
thereof has a cleaning member integrally formed with the extension pipe.
In some embodiments of the present disclosure, the handheld cleaner further
includes a
telescopic hose having a first end extending into and fixed in the extension
pipe and a second end
detachably connected to the dust suction inlet, the first end of the extension
pipe is detachably
connected to the casing and the telescopic hose is accommodated in an interior
of the extension pipe
when the extension pipe is connected to the casing.
In some embodiments of the present disclosure, the handheld cleaner further
includes a first
detection device, in which, the first detection device is disposed to the
casing and used to detect a
motion state of the casing; a control device, in which, the control device is
connected to the first
detection device and the negative pressure device and configured to control a
working state of the
handheld cleaner according to information detected by the detection device.
In some embodiments of the present disclosure, the control device is
configured to control the
negative pressure device to increase a suction strength if the first detection
device detects that a
motion speed of the casing rises, and control the negative pressure device to
decrease the suction
strength if the first detection device detects that the motion speed of the
casing drops.
In some embodiments of the present disclosure, the control device is
configured to control the
negative pressure device to shut down if the first detection device detects
that the casing has never
moved in a first predetermined duration, the control device is configured to
control the negative
pressure device to turn on if the first detection device detects displacement
of the casing in a second
predetermined duration after a shutdown of the negative pressure device, and
the control device is
configured to control the handheld cleaner to turn off if the first detection
device detects no
displacement of the casing in the second predetermined duration after the
shutdown of the negative
pressure device.
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In some embodiments of the present disclosure, the casing has an air intake
passage in
communication with the dedusting chamber, the handheld cleaner further
includes a second detection
device used to detect a dust concentration in the air intake passage; and the
control device connected
to the second detection device and the negative pressure device and configured
to control the working
__ state of the handheld cleaner according to the information detected by the
second detection device.
In some embodiments of the present disclosure, the control device is
configured to control the
negative pressure device to increase the suction strength thereof if the
second detection device detects
that the dust concentration rises, and control the negative pressure device to
decrease the suction
strength thereof if the second detection device detects that the dust
concentration drops.
The handheld cleaner according to some specific embodiments of the present
disclosure will
be described below.
In some embodiments of the present disclosure, the dust cup assembly includes:
a negative
pressure device configured to suck and blow an airflow; a dedusting device
configured to remove dust
from the airflow; and a casing including a cup body with an open top and a
cleaner cover disposed at
__ the top of the cup body, in which the cup body includes a mounting frame
and a dust collecting cup,
the dedusting device is supported on a top of the mounting frame, the negative
pressure device is
mounted to a bottom of the mounting frame, and the dust collecting cup is
covered outside the
negative pressure device and connected to the mounting frame.
In some embodiments of the present disclosure, the dust collecting cup is
detachably connected
__ to the mounting frame via a button-hook or an internal-external-thread
structure.
In some embodiments of the present disclosure, the mounting frame includes: a
ring connected to
a top cup ring of the dust collecting cup in a butt connection; a limiting and
supporting portion
provided in the ring and fitted with the dedusting device to limit a
displacement of the dedusting
device in directions other than an upward direction; and a fixed mounting
portion provided in the ring
__ and configured to fix and mount the negative pressure device.
In some embodiments of the present disclosure, the dedusting device includes a
limiting hole
penetrating therethrough in an up-and-down direction, and a support groove
having an open bottom;
the support groove includes two support sub-grooves disposed at two radial
sides of the limiting hole;
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the limiting and supporting portion includes a limiting post and a support
beam, in which the limiting
post is disposed in the ring and inserted in the limiting hole while being
fitted therewith, the support
beam includes two support sub-beams disposed at two radial sides of the
limiting post respectively,
and the two support sub-beams are correspondingly disposed in the two support
sub-grooves
respectively and configured to support top walls of the corresponding support
sub-grooves.
In some embodiments of the present disclosure, each support sub-beam has one
splicing plate
extending downwards, and the dedusting device includes: a split-type
filtration tube, in which the
split-type filtration tube includes two arc filters respectively disposed at
two sides of the support beam
in a width direction thereof, and two splicing plates are connected between
side edges of the two arc
filters adjacent to each other so as to make up a continuous filtration tube
together with the two arc
filters; and a filtration tube cover plate covered on a top of the split-type
filtration tube, in which the
limiting hole is formed in a center of the filtration tube cover plate, and
the support groove is formed
in a bottom wall of the filtration tube cover plate.
In some embodiments of the present disclosure, the dedusting device further
includes a cyclone
assembly disposed in the split-type filtration tube, two cyclone assemblies
are provided and located at
two sides of the support groove in a width direction thereof, each cyclone
assembly is connected to
the corresponding arc filter and includes a plurality of cyclones arranged in
a circumferential direction
of the split-type filtration tube, and the filtration tube cover plate has an
air outlet pipe
correspondingly extending into each cyclone.
In some embodiments of the present disclosure, the mounting frame is
integrally molded.
In some embodiments of the present disclosure, the cup body further includes a
suction nozzle
fixed to the mounting frame or integrally molded with the mounting frame.
In some embodiments of the present disclosure, the handheld cleaner includes
the dust cup
assembly according to embodiments of the first aspect of the present
disclosure, and a handle
assembly disposed to the dust cup assembly and configured for handholding.
In some embodiments of the present disclosure, the handheld cleaner further
includes an
extension pipe, and the extension pipe includes: a pipe body member configured
as a hollow pipe with
two open ends and a first end of the pipe body member being connected with a
dust suction inlet in
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the casing; and a rotating member disposed at a second end of the pipe body
member, integrally
formed with the pipe body member, and provided with an inlet hole in
communication with an interior
of the pipe body member, so as to allow dust to enter the pipe body member via
the inlet hole and then
enter the dust suction inlet along the pipe body member, in which the rotating
member is rotatable
with respect to the pipe body member and configured to change orientation of
the inlet hole with
respect to the pipe body member during rotation of the rotating member.
In some embodiments of the present disclosure, the rotating member is
connected to the pipe
body member via a pivoting shaft, or the pipe body member is connected to the
rotating member
through a spherical fit.
In some embodiments of the present disclosure, the handheld cleaner further
includes an
extension pipe, the extension pipe is configured as a hollow pipe having two
open ends, a first end of
the extension pipe is detachably communicated with a dust suction inlet in the
casing and a second
end thereof has a cleaning member formed in one piece with the extension pipe.
In some embodiments of the present disclosure, the handheld cleaner further
includes a
telescopic hose having a first end extending into and fixed in the extension
pipe and a second end
detachably connected to the dust suction inlet; the first end of the extension
pipe is detachably
connected to the casing, and the telescopic hose is accommodated within the
extension pipe when the
extension pipe is connected to the casing.
In some embodiments of the present disclosure, the handheld cleaner further
includes: a first
detection device disposed to the casing and configured to detect a motion
state of the casing; and a
control device connected to the first detection device and the negative
pressure device, and configured
to control a working state of the handheld cleaner according to information
detected by the first
detection device.
In some embodiments of the present disclosure, the control device is
configured to control the
negative pressure device to increase a suction strength thereof if the first
detection device detects that
a motion speed of the casing rises, and to control the negative pressure
device to decrease the suction
strength thereof if the first detection device detects that the motion speed
of the casing drops.
In some embodiments of the present disclosure, the control device is
configured to control the
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negative pressure device to shut down, if the first detection device detects
that the casing has never
moved in a first predetermined duration during operation of the negative
pressure device; the control
device is configured to control the negative pressure device to turn on, if
the first detection device
detects a displacement of the casing in a second predetermined duration after
the shutdown of the
negative pressure device; and the control device is configured to control the
handheld cleaner to turn
off, if the first detection device detects no displacement of the casing in
the second predetermined
duration after the shutdown of the negative pressure device.
In some embodiments of the present disclosure, the casing includes an air
intake passage in
communication with a dedusting chamber, and the handheld cleaner further
includes: a second
detection device configured to detect a dust concentration in the air intake
passage; and a control
device connected to the second detection device and the negative pressure
device, and configured to
control the working state of the negative pressure device according to
information detected by the
second detection device.
In some embodiments of the present disclosure, the control device is
configured to control the
negative pressure device to increase a suction strength thereof if the second
detection device detects
that the dust concentration rises, and to control the negative pressure device
to decrease the suction
strength thereof if the second detection device detects that the dust
concentration drops.
The handheld cleaner according to some specific embodiments of the present
disclosure will
be described below.
Embodiment 1
A handheld cleaner 1000 according to embodiments of the present disclosure
will be described
with reference to the drawings.
As shown in Fig. 1, the handheld cleaner 1000 according to embodiments of the
present
disclosure includes a dust cup assembly 100, an extension pipe 300 and a
holding assembly. The dust
cup assembly 100 may suck dusty air in the environment through the extension
pipe 300, filter dust
out from the dusty air, and blow a purified airstream back to the environment,
which functions as
absorption of dust in the environment. The holding assembly is mounted to the
dust cup assembly 100
and configured for handheld use. For example, the holding assembly may be a
lift handle or a handle
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assembly 200 shown in Fig. 1, such that a user may move the dust cup assembly
100 through the
holding assembly to clean a target area (such as a sofa surface and a ceiling)
in the environment.
As shown in Fig. 1, the dust cup assembly 100 includes a casing 1, a device
housing 2 and a
negative pressure device 3, in which the device housing 2 is disposed within
the casing 1 and the
negative pressure device 3 is disposed within the device housing 2. That is,
the casing 1 encloses the
device housing 2 and the device housing 2 encloses the negative pressure
device 3, such that the
negative pressure device 3 is accommodated in the casing 1, thereby improving
structural
compactness of the dust cup assembly 100, making the dust cup assembly 100
small and lightweight,
facilitating handheld use and realizing aesthetic appearance. Preferably, the
casing 1 and the device
housing 2 are detachably connected to facilitate cleaning, maintenance and
replacement.
It should be noted herein that the term "the device housing 2 disposed within
the casing 1"
should be interpreted broadly, i.e. interpreted in this way that other parts
of the device housing 2 are
disposed within the casing 1, except a part thereof disposed at an opening 111
and described in the
following paragraph, and the part of the device housing 2 may be disposed
within the casing 1 or
extend out of an inner chamber of the casing 1 via the opening 111.
Referring to Fig. 1, the casing 1 has the opening 111, and the part of the
device housing 2 has an
air exhaust port 220 and is disposed at the opening 111 and exposed from the
opening 111. That is, the
part of the device housing 2 is disposed at the opening 111 and exposed from
the opening 111, and has
the air exhaust port 220 that is also exposed from the opening 111, such that
an airstream in the device
housing 2 may flow to the outside of the casing 1 through the air exhaust port
220 and the opening
111.
The term "the part of the device housing 2 disposed at the opening 111" means
that the part of
the device housing 2 closely covers the opening 111 to make the opening 111
only in communication
with the air exhaust port 220 of the part. The part may at least partially
extend out of the inner
chamber of the casing 1, as shown in Figs. 1 and 3, so as to exhaust the
airstream reliably and
effectively, and improve accuracy of positioning the part of the device
housing 2 with the opening to
raise reliability of the dust cup assembly 100 during work.
Referring to Fig. 2, the casing 1 has a dust suction inlet 112; a dedusting
chamber Al is defined
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between the device housing 2 and the casing 1 and communicates with the dust
suction inlet 112; the
dedusting chamber Al may be defined by an outer surface of the device housing
2 and an inner
surface of the casing 1 together; and the device housing 2 defines an air
exhaust chamber A3 therein
that communicates the air exhaust port 220 with the dedusting chamber Al. In
such a way, the
dedusting chamber Al surrounds the air exhaust chamber A3 because the
dedusting chamber Al is
defined between the device housing 2 and the casing 1 and the air exhaust
chamber A3 is defined in
the device housing 2.
The negative pressure device 3 is configured to supply negative pressure to
the air exhaust
chamber A3, such that the dusty air in the environment may be sucked into the
dedusting chamber Al
through the dust suction inlet 112 for dust and air separation, and the
purified airstream separated
from the dedusting chamber Al enters the device housing 2, i.e. enters the air
exhaust chamber A3 to
be exhausted to the outside of the casing 1 through the air exhaust port 220
and the opening 111. In
short, the dusty air in the environment passes through air passages (like an
air passage from the
dedusting chamber Al to the air exhaust chamber A3) in the dust cup assembly
100 and hence dust in
the dusty air may be filtered out and stored in the dust cup assembly 100,
while the purified airstream
may flow back to the environment.
Therefore, in terms of a layout of air passages in the dust cup assembly 100,
the dedusting
chamber Al surrounds the air exhaust chamber A3, so the layout is more
compact, which reduces
suction power loss and improves energy efficiency. Moreover, since the air
exhaust port 220 is formed
in the device housing 2 and may directly exhaust the airstream to the outside
environment via the
opening 111 in the casing 1, an air exhaust path is shortened effectively and
energy consumption is
further reduced to improve the energy efficiency. Additionally, the dust
suction inlet 112 is formed in
the casing 1 and communicates with the dedusting chamber Al defined between
the casing 1 and the
device housing 2, and the air exhaust port 220 is formed in the device housing
2 and communicates
with the air exhaust chamber A3 in the device housing 2, such that the air
passages have a simple
layout, and are convenient to process and free of a problem of airflow short
circuit, thus having high
reliability of dust filtration and a good dust filtration effect.
Certainly, the present disclosure is not limited thereby. In other embodiments
of the present
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disclosure, the air exhaust port 220 may be formed in the casing 1 instead of
the device housing 2, and
the air exhaust chamber A3 may be in communication with the air exhaust port
220 through a
connecting passage, in which case the casing 1 may not necessarily have the
opening 111 and the part
of the device housing 2 may not be located at the opening 110 and exposed
therefrom.
In some preferable embodiments of the present disclosure, the device housing 2
has a tube shape
and is disposed in the casing 1; an outer end face (e.g. a lower end face
shown in Fig. 1) of the device
housing 2 at an axial side thereof abuts against or extends beyond a partial
inner surface of the casing
1 (e.g. a lower surface shown in Fig. 1); and the dedusting chamber Al is
defined between the inner
surface of the casing 1 and an outer circumferential surface of the device
housing 2 and surrounds the
device housing 2 along a circumferential direction of the device housing 2.
Thus, the layout of air
passages in the dust cup assembly 100 is more compact, the air exhaust path is
shorter, the energy
consumption is lower and the energy efficiency is higher.
Preferably, as shown in Figs. 1 and 3, the casing 1 and the device housing 2
both have a tube
shape, an axis of the casing 1 is in parallel to an axis of the device housing
2, and an outer bottom wall
of the device housing 2 abuts against or penetrates through an inner bottom
wall of the casing 1, in
which case the dedusting chamber Al may be a hollow annular-columnar chamber
defined between
an inner circumferential wall of the casing 1 and an outer circumferential
wall of the device housing 2,
such that when the dust suction inlet 112 is formed along a tangential
direction of the dedusting
chamber Al, the dedusting chamber Al may be used as a cyclone separating
chamber for cyclonic
dust and air separation, so as to improve a purifying effect. Further
preferably, the casing 1 and the
device housing 2 are arranged coaxially, i.e. the axis of the tube-shaped
casing 1 and that of the
tube-shaped device housing 2 coincide with each other, and hence the dedusting
chamber Al may be a
hollow annular-columnar chamber, which has a better dust and air separation
effect and is conductive
to mounting a dedusting device 4 described hereinafter.
In conclusion, the handheld cleaner 1000 according to the embodiments of the
present disclosure
is small and lightweight with a compact structure and effortless for handheld
use, and the handheld
cleaner 1000 has compact air passages, low energy consumption and high energy
efficiency.
The extension pipe 300 according to some embodiments of the present disclosure
will be
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described with reference to Figs. 11 to 15.
Specifically, the extension pipe 300 is configured to be connected with the
dust suction inlet 112
of the dust cup assembly 100. That is, when the dust cup assembly 100 needs
the extension pipe 300
to suck dust, the extension pipe 300 may be assembled to the dust suction
inlet 112; when the dust cup
assembly 100 does not need the extension pipe 300 but another component (such
as a gap nozzle a
mite-killing nozzle, etc.) for dust suction, the extension pipe 300 may be
detached from the dust
suction inlet 112 and the other component required actually may be assembled
to the dust suction inlet
112.
In some specific examples of the present disclosure, referring to Fig. 14, a
first end of the
extension pipe 300 is directly and detachably connected with the dust suction
inlet 112. For example,
the extension pipe 300 may be mounted to and dismounted from the dust suction
inlet 112 through a
quick release snap structure, thus facilitating the mounting and dismounting
thereof.
In some other specific examples of the present disclosure, referring to Fig.
15, the first end of the
extension pipe 300 is indirectly and detachably connected with the dust
suction inlet 112 through a
telescopic hose 400. For example, the extension pipe 300 may be mounted to and
dismounted from
the telescopic hose 400 through a first quick release structure, and the
telescopic hose 400 may be
mounted to and dismounted from the dust suction inlet 112 through a second
quick release structure,
such that the extension pipe 300 may be stretched and retracted through
adjustment of the telescopic
hose 400. The mounting, dismounting and connecting are convenient, and a dust
suction range of the
handheld cleaner 1000 can be enlarged. It should be noted herein that the
concept "the telescopic hose
400" is well known to those skilled in the art and hence will not be
illustrated.
In some more specific examples of the present disclosure, referring to Fig.
15, the first end of the
extension pipe 300 is in communication with the dust suction inlet 112 through
the telescopic hose
400. For example, a first end of the telescopic hose 400 may extend into and
be fixed in the extension
pipe 300, and a second end thereof is detachably connected with the dust
suction inlet 112. Thus,
during assembling, the first end of the telescopic hose 400 may extend into an
inner bore of the
extension pipe 300 and fixed inside the extension pipe 300. Preferably, the
dust cup assembly 100 has
a first connecting structure, the first end of the extension pipe 300 has a
second connecting structure,
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and the second connecting structure and the first connecting structure are
detachably fitted with each
other, such that when the first connecting structure and the second connecting
structure are assembled
together, the first end of the extension pipe 300 may be fixed to the dust cup
assembly 100, and when
the first connecting structure is disassembled from the second connecting
structure, the extension pipe
300 may be removed from the dust cup assembly 100. For example, the first
connecting structure may
be a snap hook, and the second connecting structure may be a snap block.
Therefore, when the extension pipe 300 is used for cleaning, the second end of
the telescopic
hose 400 may be connected to the dust suction inlet 112 of the dust cup
assembly 100, such that in the
process of using the handheld cleaner 1000, the first end of the extension
pipe 300 may be connected
to a cup body 11, for example, through the quick release snap structure, if
the extension pipe 300 does
not needs to be stretched, and at this time the telescopic hose 400 may be
completely accommodated
in the extension pipe 300, but if the extension pipe 300 needs to be stretched
to a long length, the
extension pipe 300 may be separated from the cup body 11, and at this time the
second end of the
telescopic hose 400 may be pulled out and exposed from the extension pipe 300
to realize a
lengthening effect.
In some embodiments of the present disclosure, as shown in Fig. 11, the
extension pipe 300
includes a pipe body member 61 and a rotating member 62; the pipe body member
61 is a hollow pipe
with two open ends and a first end thereof is configured to connected with the
dust suction inlet 112;
and the rotating member 62 is provided at a second end of the pipe body member
61 and rotatably
connected with the pipe body member 61, that is, the rotating member 62 may
rotate freely around the
second end of the pipe body member 61; the rotating member 62 is provided with
an inlet hole 622 in
communication with an interior of the pipe body member 61, and dust in the
environment may enter
the pipe body member 61 through the inlet hole 622 and enter the dust suction
inlet 112 along the pipe
body member 61. Hence, when the rotating member 62 rotates relative to the
pipe body member 61,
orientation of the inlet hole 622 may be changed with respect to the pipe body
member 61. Therefore,
when an inclination angle of the pipe body member 61 is constant, an entrance
(i.e. the orientation) of
the inlet hole 622 in the rotating member 62 may be directed to a place to be
cleaned by rotating the
rotating member 62, such that the extension pipe 300 may clean different
positions effectively, which
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improves an angle range of dust suction of the extension pipe 300.
Therefore, when the user adopts the extension pipe 300 for cleaning different
positions via dust
suction, the dust cup assembly 100 no longer needs to be lifted, lowered or
inclined to adjust the
inclination angle of the whole extension pipe 300; instead, only the rotating
member 62 needs to
pivoted to adjust the orientation of the inlet hole 622 for targeted cleaning
of different positions, so as
to achieve a better dust suction effect, reduce labor intensity of the user
and facilitate the use of the
cleaner 1000.
For example, in a specific example of the present disclosure, as shown in
Figs. 12 and 13, when
the extension pipe 300 is used for cleaning, the rotating member 62 may be
rotated, for example,
along a direction from Al to A2 in Fig. 13, to rotate the inlet hole 622 to a
position in perpendicular to
a surface to be cleaned (as a state shown in Fig. 13), so as to improve the
cleaning effect. When the
extension pipe 300 is not needed for cleaning, the rotating member 62 may be
rotated, for example,
along a direction from A2 to Al in Fig. 13, to rotate the inlet hole 622 to a
position parallel to a central
axis of the pipe body member 61 (as a state shown in Fig. 12), so as to
facilitate storage thereof
Specifically, the rotating member 62 and the pipe body member 61 are in one
piece, that is, the
rotating member 62 and the pipe body member 61 are connected together,
regardless that the
extension pipe 300 is in a use state or an unused state, so the user cannot
take down the rotating
member 62 from the pipe body member 61 or replace it with other components
freely. Or, the second
end of the pipe body member 61 has no structure configured to assemble other
components, so the
second end of the pipe body member 61 cannot be assembled with other
components even if the
rotating member 62 is disassembled from the second end of the pipe body member
61 forcibly. Thus,
a problem that working flexibility of the rotating member 62, is reduced for
forcible disassembling of
the rotating member 62 may be avoided effectively. It should be noted herein
that when the extension
pipe 300 needs maintenance, a professional may forcibly detach the rotating
member 62 from the pipe
body member 61, which should be still understood as the technical solution
where the rotating
member 62 and the pipe body member 61 are in one piece.
It should be noted herein that some handheld cleaners in the related art have
an extension pipe, to
which various components may be mounted based on practical requirements, but
the components can
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no longer be connected with the extension pipe firmly for repeated
disassembling and assembling,
thereby resulting in loose and insecure connection and decreasing service
reliability and service life.
However, in the present disclosure, the rotating member 62 and the pipe body
member 61 are
processed as a non-detachable one-piece structure, so as to solve the
technical problem reliably and
effectively.
In conclusion, as to the extension pipe 300 for the handheld cleaner 1000
according to the
embodiments of the present disclosure, since the rotatable rotating member 62
is provided at the
second end of the pipe body member 61 away from the dust suction inlet 112,
suction orientation of
the extension pipe 300 may be adjusted by pivoting the rotating member 62, so
as to improve the
angle range of dust suction of the extension pipe 300, and moreover, since the
pipe body member 61
and the rotating member 62 cannot be detached from each other, operational
reliability, flexibility and
service life of the whole extension pipe 300 are enhanced effectively.
In the embodiments of the present disclosure, the rotating member 62 and the
pipe body member
61 may be pivotably connected in various ways. In a first example described
below, the pipe body
member 61 and the rotating member 62 may be connected via a pivoting shaft 64.
In a second
example described below, the pipe body member 61 and the rotating member 62
are connected
through spherical fit. Thus, the pivotable connection is reliable with high
flexibility and is easy to
realize.
Example I
Referring to Figs. 12 and 13, the rotating member 62 includes a semi-annular
portion 621, that is,
the rotating member 62 has a substantially semicircular tube shape; the semi-
annular portion 621
defines the inlet hole 622 extending along its axial direction and is fitted
over the second end of the
pipe body member 61; and two ends of the semi-annular portion 621 in its
circumferential direction
are connected with the pipe body member 61 through the pivoting shaft 64.
Thus, the pipe body
member 61 will not interfere with the rotation of the rotating member 62,
which guarantees free and
flexible pivoting of the rotating member 62.
Example II
This example is not shown in the drawings. The second end of the pipe body
member 61 has an
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outer surface formed as an outer spherical surface, and the rotating member 62
has an inner surface
formed as an inner spherical surface. For example, the rotating member 62 may
be formed as a
spherical casing and the inlet hole 622 may penetrate through the rotating
member 62 along a radial
direction of the rotating member 62, such that the rotating member 62 is
fitted over the second end of
the pipe body member 61 to make the inner spherical surface in fitted
connection with the outer
spherical surface. Thus, the pipe body member 61 will not interfere with the
rotation of the rotating
member 62, which guarantees free and flexible pivot of the rotating member 62.
Preferably, a damping member is provided between the pipe body member 61 and
the rotating
member 62. For example, in the first example, the damping member is provided
between the
semi-annular portion 621 and the pivoting shaft 64. For example, in the second
example, the damping
member is provided between the inner spherical surface and the outer spherical
surface. Therefore,
after the user pivots the rotating member 62, the rotating member 62 may stop
at an angle reliably
without further automatic rotation, such that the extension pipe 300 may suck
dust stably and reliably
towards a direction adjusted by the user, thereby further improving the dust
suction effect. It should be
noted herein that the damping member is a medium for increasing friction, and
a specific product
thereof is well known to those skilled in the art and hence will not be
elaborated.
In some embodiments of the present disclosure, the rotating member 62 may have
a cleaning
member 63, such as a rag, a sponge or a bristle portion described below, such
that the extension pipe
300 may do cleaning by the cleaning member 63 in the process of dust suction,
so as to achieve a
better cleaning effect. The cleaning member 63 may be fixed to the rotating
member 62, i.e.
non-detachable and irreplaceable, or may be detachably fixed to the rotating
member 62, i.e.
replaceable and detachable. Thus, if a second end of the extension pipe 300
has the cleaning member
63, it is more convenient for the user to clean with a higher cleaning
efficiency.
In a specific example of the present disclosure, the rotating member 62 has
the bristle portion 631
located at an edge of the inlet hole 622. Referring to Figs. 12 and 13, the
bristle portion 631 may be
connected to an axial end of the semi-annular portion 621 and extend along a
circumferential direction
of the semi-annular portion 621, that is, a plurality of bristles are provided
at an axial end face of the
semi-annular portion 621, extend out along the axial direction of the semi-
annular portion 621 and are
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spaced apart evenly in the circumferential direction of the semi-annular
portion 621. Therefore, the
bristle portion 631 is arranged in a simple way and easy to realize, and the
bristle portion 631 is
arranged on a periphery of the inlet hole 622 and thus will not interfere with
dust suction of the inlet
hole 622.
In some extended embodiments of the present disclosure, the extension pipe 300
may be a
hollow pipe with two open ends, the first end of the extension pipe 300 is
detachably connected with
the dust suction inlet 112, and the second end thereof has the cleaning member
63 integrally formed
with the extension pipe 300, such that when the extension pipe 300 is
dismounted from the dust cup
assembly 100, the user may use the extension pipe 300 with the cleaning member
63 separately to do
cleaning, which makes the cleaning member 63 possess an independent function
from the dust cup
assembly 100.
In some specific examples of the present disclosure, the extension pipe 300
includes the pipe
body member 61 and the cleaning member 63, the cleaning member 63 is directly
mounted to the
second end of the pipe body member 61, and the cleaning member 63 and the pipe
body member 61
are in one piece. That is, the cleaning member 63 and the pipe body member 61
are connected
together, regardless that the extension pipe 300 is in the use state or the
unused state, so the user
cannot take down the cleaning member 63 from the pipe body member 61 or
replace it with other
components freely, thus avoiding a problem that service life of the cleaning
member 63 is reduced due
to frequent dismounting and replacement thereof. It should be noted herein
that when the extension
pipe 300 needs maintenance, the professional may forcibly detach the cleaning
member 63 from the
pipe body member 61, which should be still understood as the technical
solution where the cleaning
member 63 and the pipe body member 61 are in one piece.
In some other specific examples of the present disclosure, the extension pipe
300 includes the
pipe body member 61, the rotating member 62 and the cleaning member 63, the
cleaning member 63
is directly mounted to the rotating member 62 so as to be indirectly mounted
to the second end of the
pipe body member 61, and at this time the cleaning member 63, the rotating
member 62 and the pipe
body member 61 are in one piece. That is, the cleaning member 63, the rotating
member 62 and the
pipe body member 61 are connected together, regardless that the extension pipe
300 is in the use state
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or the unused state, so the user cannot take down the rotating member 62 from
the pipe body member
61 or take down the cleaning member 63 from the rotating member 62, or replace
them with other
components freely, thus avoiding the problem that the service lives of the
cleaning member 63 and the
rotating member 62 are reduced due to frequent dismounting and replacement
thereof It should be
noted herein that when the extension pipe 300 needs maintenance, the
professional may forcibly
dismount the cleaning member 63 and the rotating member 62 from the pipe body
member 61, which
should be still understood as the technical solution where the cleaning member
63, the rotating
member 62 and the pipe body member 61 are in one piece.
In some embodiments of the present disclosure, the extension pipe 300 is a
telescopic pipe. Thus,
the extension pipe 300 may be stretched and shortened based on practical
requirements, i.e. its length
may be adjusted adaptively according to a distance from the place to be
cleaned, which is
user-friendly. It should be noted herein that a specific implementation of the
telescopic pipe is well
known to those skilled in the art, such as an umbrella handle and a clothes-
hanging rod, both of which
are telescopic pipes, and no more elaboration is provided herein.
In conclusion, according to the extended embodiments of the present
disclosure, when the
extension pipe 300 is the telescopic pipe per se, or is connected with the
dust cup assembly 100
through the telescopic hose 400, the extension pipe 300 may be stretched and
shortened freely and the
length thereof can be adjusted, which is user-friendly; moreover, when the
extension pipe 300 is
connected with the dust cup assembly 100 through the telescopic hose 400, dust
suction may be
implemented through transition connection of the telescopic hose 400 even if
the extension pipe 300 is
separated from the dust cup assembly 100. Additionally, since the second end
of the extension pipe
300 is provided with the cleaning member 63, the extension pipe 300 may be
used separately, for
example, as a broom, when it is completely dismounted from the dust cup
assembly 100, thereby
improving versatility of the extension pipe 300.
The dust cup assembly 100 according to some embodiments of the present
disclosure will be
described with reference to Figs. 1 to 10.
As shown in Figs. 1 and 2, the casing 1 may have a communicating chamber A2
that
communicates the dedusting chamber Al with the air exhaust chamber A3, such
that the airstream
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separated from the dedusting chamber Al may enter the device housing 2 through
the communicating
chamber A2, i.e. entering the air exhaust chamber A3. Thus, the dedusting
chamber Al and the air
exhaust chamber A3 are communicated by providing the communicating chamber A2
in the casing 1,
such that the layout of air passages in the dust cup assembly 100 is more
compact, the suction power
consumption is lower and the energy efficiency is higher. Certainly, the
present disclosure is not
limited thereby, i.e. the dedusting chamber Al and the air exhaust chamber A3
may be communicated
in other manners, for example, by providing a connecting pipe to communicate
the dedusting chamber
Al with the air exhaust chamber A3.
Referring to Fig. 1, the casing 1 includes the cup body 11 and a cleaner cover
12, in which the
cup body 11 has an open end and the cleaner cover 12 is covered on the open
end of the cup body 11,
such that the casing 1 has a simple structure and is convenient to process and
assemble. Preferably, the
cleaner cover 12 is detachably covered on the open end of the cup body 11.
That is, the cleaner cover
12 is detachably connected with the cup body 11, so it is convenient to
dismount the cleaner cover 12
from the cup body 11 and clean the cup body 11 and the cleaner cover 12. For
example, the cup body
11 and the cleaner cover 12 may be detachably connected through a thread
structure or a snap
structure.
In addition, in some embodiments of the present disclosure, the cup body 11
may further include
a main body portion and a bottom cover portion, the main body portion has a
tube shape with two
open ends, and the bottom cover portion is connected to one open end of the
main body portion in
such a manner that the bottom cover portion may be opened or closed. Thus,
when the bottom cover
portion is opened, dust accumulating in the main body portion may be poured
out, which is
convenient for use.
Referring to Fig. 2, the dust suction inlet 112 and the opening 111 both may
be formed in the cup
body 11, and the communicating chamber A2 may be defined in the cleaner cover
12. That is, the cup
body 11 has the opening 111 and the dust suction inlet 112, the cleaner cover
12 has the
communicating chamber A2, such that the communicating chamber A2 is convenient
to process, and
when the communicating chamber A2 is defined in the cleaner cover 12, the
communicating chamber
A2 may be located at the same side of the device housing 2 and the dedusting
chamber Al (e.g. an
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upper side shown in Fig. 1), so as to further simplify the layout of air
passages and improve working
reliability. For example, in a preferable example of the present disclosure,
the cup body 11 has an
upright tube shape, i.e. a vertically disposed tube, a top end of the cup body
11 is open to be
configured as the open end, the cleaner cover 12 is covered on the top end of
the cup body 11, the dust
suction inlet 112 may be formed in a side wall of the cup body 11, and the
opening 111 may be formed
in a bottom wall of the cup body 11. Thus, the casing 1 has an overall simple
structure, and is
convenient to process, assemble and disassemble.
It should be noted herein that the term "tube shape" is interpreted broadly,
that is, a cross section
of the tube shape is not limited to be circular, and sizes of various cross
sections thereof may be equal
or not. Additionally, the term "vertically disposed" means that an axis of the
tube shape extends
substantially along an up-and-down direction shown in Fig. 1, but the cup body
11 may not keep a
vertical state any longer according to a change of handheld angle of the user
when the handheld
cleaner 1000 is used. For example, the cup body 11 may be in an oblique state
or a horizontal state.
Further, the device housing 2 is disposed in the cup body 11, the dedusting
chamber Al is
defined among the cleaner cover 12, the cup body 11 and the device housing 2,
and the
communicating chamber A2 is defined in the cleaner cover 12. Hence, the
dedusting chamber Al may
be communicated with the communicating chamber A2 naturally and easily, and
positions of the
dedusting chamber Al and the communicating chamber A2 are arranged reasonably,
such that the air
passages in the dust cup assembly 100 have high non-obstruction, and the
problem of airflow short
circuit may be avoided.
As shown in Figs. 1 and 2, the cleaner cover 12 includes an inner cover 121
and an outer cover
122, the inner cover 121 and the outer cover 122 both are covered on the open
end of the cup body 11
and the outer cover 122 is covered on the inner cover 121, the communicating
chamber A2 is defined
between the outer cover 122 and the inner cover 121, the dedusting chamber Al
is defined among the
device housing 2, the inner cover 121 and the cup body 11, and the inner cover
121 has an inflow
communication hole 12110 that communicates the communicating chamber A2 with
the dedusting
chamber Al, that is, the dedusting chamber Al is in communication with the
communicating chamber
A2 through the inflow communication hole 12110 in the inner cover 121, such
that the airstream
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separated from the dedusting chamber Al may enter the communicating chamber A2
through the
inflow communication hole 12110. Hence, the structure of the cleaner cover 12
is simple, and the
communicating chamber A2 is convenient to process.
Preferably, the inner cover 121 has an extension segment 1211 extending
towards an interior of
the cup body 11, and the inflow communication hole 12110 is defined by the
extension segment 1211.
In an example shown in Fig. 1, the inner cover 121 may be horizontally
disposed at the top of the cup
body 11, and the extension segment 1211 may extend downwards from the inner
cover 121 into the
cup body 11. Thus, the inflow communication hole 12110 has a better
communicating effect, and the
airstream separated from the dedusting chamber Al may enter the communicating
chamber A2 stably
and reliably through the extension segment 1211.
Preferably, the inner cover 121 further has an air outlet ring 1212 extending
towards the interior
of the cup body 11, and the air outlet ring 1212 is fitted in or over an open
end of the device housing 2
and defines an outflow communication hole 12120 that communicates the
communicating chamber
A2 with an interior of the device housing 2, i.e. communicates the
communicating chamber A2 with
the air exhaust chamber A3. In examples shown in Figs. 1 and 2, the inner
cover 121 may be
horizontally disposed at the top of the cup body 11, and the air outlet ring
1212 may extend
downwards from the inner cover 121 into the cup body 11 and be fitted with the
open end (i.e. an air
inlet end, like a top end of the device housing 2 shown in Fig. 1) of the
device housing 2 through
sleeve connection. Thus, the outflow communication hole 12120 has a better air
outflow effect, and
the airstream separated from the communicating chamber A2 may enter the air
exhaust chamber A3
more stably and reliably through the air outlet ring 1212 without the problem
of airflow short circuit.
In an alternative example of the present disclosure, the inner cover 121 and
the outer cover 122
are separately and detachably mounted to the cup body 11. That is, the inner
cover 121 is detachably
and directly connected with the cup body 11, the outer cover 122 is also
detachably and directly
connected with the cup body 11, and the inner cover 121 and the outer cover
122 are not directly
connected with each other. Thus, the inner cover 121 and the outer cover 122
may be directly
detached from the cup body 11, so as to clean the inner cover 121 and the
outer cover 122
conveniently.
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In the example shown in Fig. 1, part of the inner cover 121 is embedded in the
cup body 11 and
an edge thereof abuts against the open end of the cup body 11 to prevent the
inner cover 121 from
falling into the cup body 11; the outer cover 122 is connected with an outer
wall of the open end of the
cup body 11 through snap connection or threaded connection. Thus, the outer
cover 122 may be
detached from the cup body 11 easily, and then the inner cover 121 may be
taken out of the cup body
11, so as to complete the disassembling. Hence, the structure is simple, and
the dismounting and
cleaning processes are convenient to implement.
In another alternative example of the present disclosure, which is not shown
in the drawings, the
inner cover 121 is detachably mounted to the outer cover 122, and one of the
inner cover 121 and the
outer cover 122 is detachably mounted to the cup body 11. That is, the inner
cover 121 and the outer
cover 122 are detachably and directly connected with each other, and one of
the inner cover 121 and
the outer cover 122 is detachably and directly mounted to the cup body 11.
Thus, the cleaner cover 12
may be detached from the cup body 11 directly, and then the inner cover 121
and the outer cover 122
are detached from each other, so as to clean the inner cover 121 and the outer
cover 122 conveniently.
Referring to Figs. 1 and 2, the cleaner cover 12 further includes an in-cover
filter 1221 that is
detachably disposed between the inner cover 121 and the outer cover 122 and
located in the
communicating chamber A2, such that the airstream may be further filtered by
the in-cover filter 1221
after entering the communicating chamber A2 from the dedusting chamber Al, so
as to improve a
dedusting effect, make cleaner air enter the air exhaust chamber A3, and
ensure reliable operation of
the negative pressure device 3 and provide longer service life therewith.
Preferably, the in-cover filter 1221 is detachably disposed in the
communicating chamber A2.
That is, the in-cover filter 1221 may be dismounted from the communicating
chamber A2, thereby
facilitating the cleaning and replacement of the in-cover filter 1221 and thus
improving dust suction
and filtration effects. In the example shown in Fig. 1, the in-cover filter
1221 may be clamped and
positioned between an in-cover air passage member 1222 described below and the
inner cover 121,
and also, in an example shown in Fig. 3, the in-cover filter 1221 may be
clamped and positioned
between the inner cover 121 and the outer cover 122. Thus, after the inner
cover 121 is separated from
the outer cover 122, the in-cover filter 1221 may be taken out directly, so as
to further improve the
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dismounting efficiency.
Referring to Figs. 1 to 4, the cleaner cover 12 further includes the in-cover
air passage member
1222 that defines, together with the inner cover 121, the communicating
chamber A2, so as to
facilitate formation of the communicating chamber A2. In the example shown in
Fig. 3, the in-cover
air passage member 1222 is integrally formed to an internal wall of the outer
cover 122, that is, the
internal wall of the outer cover 122 may be configured as the in-cover air
passage member 1222,
which is convenient to process. In the example shown in Fig. 1, the in-cover
air passage member 1222
is detachably disposed between the inner cover 121 and the outer cover 122, so
that it is convenient to
dismount and clean the in-cover air passage member 1222.
Preferably, referring to Figs. 3 and 4, the communicating chamber A2 includes
a plurality of
independent communication air passages A20. That is, the in-cover air passage
member 1222 may be
provided with a plurality of communicating grooves therein, each communicating
groove and the
inner cover 121 define one communication air passage A20 therebetween, and the
plurality of
communication air passages A20 constitute the communicating chamber A2. A
plurality of inflow
communication holes 12110 are provided and communicate with the plurality of
communication air
passages A20 correspondingly. That is, each inflow communication hole 12110
corresponds to one
communication air passage A20, so the plurality of inflow communication holes
12110 may transport
airstreams into the plurality of communication air passages A20 in one-to-one
correspondence. Thus,
the filtration effect is better.
Preferably, as shown in Figs. 1 and 2, a plurality of in-cover filters 1221
are provided and
disposed in the plurality of communication air passages A20 correspondingly,
that is, the airstream
entering each communication air passage A20 may be filtered by one in-cover
filter 1221, so as to
improve the filtration effect effectively. Certainly, the present disclosure
is not limited thereby,
because it is possible to provide only one in-cover filter 1221 having an
annular shape, in which case
part of the in-cover filter 1221 may be provided in each communication air
passage A20, thus
enhancing the filtration effect and facilitating the mounting and dismounting
process.
In some embodiments of the present disclosure, the negative pressure device 3
in the device
housing 2 may be mounted to the device housing 2, such that it is convenient
to mount the negative
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pressure device 3 and a simple overall structure is provided. Certainly, the
present disclosure is not
limited thereby, and the negative pressure device 3 may be mounted to the
casing 1.
In the example shown in Fig. 1, the negative pressure device 3 is mounted to
the device housing
2 by a bracket 26. For example, the bracket 26 may include an upholding
portion 261 and a
connecting portion 262, a bottom of the negative pressure device 3 is
supported on the upholding
portion 261, and the connecting portion 262 is connected with the upholding
portion 261 and also
connected to the device housing 2. Thus, the bracket 26 has a simple structure
and may fix the
negative pressure device 3 in the device housing 2 stably and reliably.
Preferably, the connecting portion 262 is detachably connected with the device
housing 2, so the
negative pressure device 3 may be taken out from the device housing 2 by
dismounting the bracket 26
from the device housing 2, so as to facilitate the maintenance and replacement
of the negative pressure
device 3. For example, in some preferable examples of the present disclosure,
the connecting portion
262 and the device housing 2 both have a tube shape, and an outer
circumferential wall of the
connecting portion 262 and an inner circumferential wall of the device housing
2 are detachably
connected through a snap structure or a thread structure, which is convenient
to process and provides a
better mounting and dismounting effect. It should be noted herein that in the
description of the present
disclosure, both technical solutions of the threaded connection and the snap
connection are well
known to those skilled in the art, which will not be elaborated.
Further, referring to Fig. 1, the bracket 26 may further include a position
limiting portion 263 that
is annular, fitted over the negative pressure device 3, and connected to the
connecting portion 262
and/or the upholding portion 261. That is, the position limiting portion 263
is fitted with the negative
pressure device 3 while limiting a position thereof on the one hand, and is
connected to the connecting
portion 262, or connected to the upholding portion 261, or connected to both
of the connecting portion
262 and the upholding portion 261 on the other hand. In the example shown in
Fig. 1, the position
limiting portion 263 and the upholding portion 261 may be in one piece. Thus,
the bracket 26 may fix
the device housing 2 in the casing 1 more stably and reliably.
Referring to Fig. 1, a vibration absorbing member 264 is provided between the
bracket 26 and
the negative pressure device 3. Thus, even if vibration is generated in the
working process of the
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negative pressure device 3, the vibration may be absorbed by the vibration
absorbing member 264 and
will not be fully transmitted to the bracket 26, so as to strengthen
reliability of connection between the
bracket 26 and the device housing 2. Moreover, the vibration absorbing member
264 is provided to
reduce vibration noise effectively and improve comfort of using the handheld
cleaner 1000.
Preferably, a part of a side surface of the vibration absorbing member 264
facing the negative
pressure device 3 is spaced apart from the negative pressure device 3. In the
example shown in Fig. 1,
the vibration absorbing member 264 is provided with a protrusion 2641, and the
negative pressure
device 3 is supported on the protrusion 2641, such that part of the side
surface of the vibration
absorbing member 264 that does not have the protrusion 2641 may keep a certain
gap with the
negative pressure device 3, thereby improving a vibration absorbing effect of
the vibration absorbing
member 264.
As shown in Fig. 1, the device housing 2 further has a positioning member 23
for preventing an
upward displacement of the negative pressure device 3. Hence, the negative
pressure device 3 is
subject to an upholding force exerted by the bracket 26 to prevent the
negative pressure device 3 from
falling down on one hand, and also subject to a force exerted by the
positioning member 23 to prevent
the negative pressure device 3 from moving upwards on the other hand. Thus,
the negative pressure
device 3 may be disposed in the device housing 2 more stably and reliably to
improve the working
reliability of the negative pressure device 3.
Preferably, the positioning member 23 has a tube shape, and has a first axial
end (e.g. an upper
end shown in Fig. 1) in communication with the air inlet end of the device
housing 2 and a second
axial end (e.g. a lower end shown in Fig. 1) in communication with an air
inlet end of the negative
pressure device 3, such that the positioning member 23 may serve to guide the
airstream and make the
airstream entering the device housing 2 better blown away by the negative
pressure device 3, so as to
reduce resistance on air suction and exhaust, lower the energy consumption and
raise the energy
efficiency. Preferably, a sealing member 24 is provided at connection of the
second axial end (e.g. the
lower end shown in Fig. 1) of the positioning member 23 and the negative
pressure device 3, so as to
improve air suction capacity of the negative pressure device 3 and lower the
energy consumption.
Referring to Figs. 1 and 2, the opening 111 may be formed in the bottom wall
of the casing 1. In
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such a case, a bottom of the device housing 2 is disposed at the opening 111,
and the air exhaust port
220 is formed at the bottom of the device housing 2, for example, in a bottom
wall of the device
housing 2. That is, the bottom wall of the casing 1 has the opening 111, the
bottom of the device
housing 2 has the air exhaust port 220, and the air exhaust port 220 is
disposed at and exposed from
the opening 111. Thus, the airstream in the device housing 2 may be exhausted
in an up-to-down
direction via the air exhaust port 220 and the opening 111. That is, the
airstream purified by the
handheld cleaner 1000 is exhausted downwards instead of upwards or laterally,
which prevents the
airstream from being blown to the user, improves user experience, and hence
raises comfort of using
the handheld cleaner 1000.
Preferably, a plurality of air exhaust ports 220 are provided and evenly
disposed in the bottom
wall of the device housing 2. Thus, the handheld cleaner 1000 may exhaust the
purified air more
efficiently, rapidly and smoothly, so as to decrease the resistance on air
suction and exhaust, lower the
energy consumption and raise the overall energy efficiency of the handheld
cleaner 1000.
Referring to Figs. 1 and 2, when the device housing 2 has an upright tube
shape, the device
housing 2 may include a housing body 21 and a housing bottom 22, the housing
body 21 has an
upright tube shape, the housing bottom 22 is shaped as a bowl and connected to
a bottom of the
housing body 21, and the air exhaust port 220 is formed in the housing bottom
22. Thus, the device
housing 2 has a simple structure, and is convenient to assemble, disassemble
and process. Moreover,
due to the convenient assembling and disassembling of the device housing 2,
the interior of the device
housing 2 may be cleaned conveniently on one hand, and the negative pressure
device 3 may be
maintained and replaced conveniently by the professional on the other hand.
Certainly, the present disclosure is not limited thereby. When the device
housing 2 only has the
tube shape but not vertically disposed, the device housing 2 may also include
the housing body 21 and
the housing bottom 22, but the housing body 21 only has the tube shape rather
than the vertically
disposed tube shape, and the housing bottom 22 is shaped as a bowl and
connected to an axial end of
the housing body 21. A case where the device housing 2 has the upright tube
shape will be taken an
example for explanation in the following, and those skilled in the art may
understand a technical
solution where the device housing 2 only has the tube shape but not vertically
disposed, after reading
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the following technical solution.
Preferably, the housing body 21 is located in the casing 1 and the bottom of
the housing body 21
abuts against an inner bottom wall 110 of the casing 1, in which case the
dedusting chamber Al only
surrounds the housing body 21 rather than the housing bottom 22 along a
circumferential direction of
the housing body 21, so as to further enhance compactness of the layout of air
passages in the dust cup
assembly 100 to reduce the energy consumption for air suction and exhaust and
improve the energy
efficiency, and meanwhile guarantee the small and lightweight structure of the
dust cup assembly 100.
Additionally, the housing body 21 and the casing 1 are positioned in that way,
thereby improving
reliability of positioning the device housing 2 and the casing 1 effectively
and facilitating the
mounting and dismounting processes.
In a preferable example of the present disclosure, which is not shown in the
drawings, the
housing body 21 and the housing bottom 22 both are located in the casing 1, an
outer bottom wall of
the housing bottom 22 is fitted with the inner bottom wall 110 of the casing
1, and a position where
the housing bottom 22 is provided with the air exhaust port 220 is opposite
the opening 111, which
facilitates the mounting process.
In another preferable example of the present disclosure, referring to Figs. 1
and 3, the housing
body 21 is located in the casing 1, the housing bottom 22 has an upper portion
extending into the
casing 1 to be fitted with the housing body 21 and a lower portion extending
downwards out of the
inner bottom wall 110 of the casing 1 via the opening 111, and the air exhaust
port 220 in the housing
bottom 22 also extends downwards out of the inner bottom wall 110 of the
casing 1 via the opening
111, in which case the bottom of the device housing 2 extends downwards out of
the inner bottom
wall 110 of the casing 1 via the opening 111. Thus, the mounting process is
convenient to implement
and the positioning effect is good. Preferably, a snap connection or a
threaded connection is provided
between an outer circumferential wall of the housing bottom 22 and an inner
circumferential wall of
the housing body 21. Thus, it is convenient to assemble and disassemble the
housing body 21 and the
housing bottom 22.
Further, referring to Fig. 1, the dust cup assembly 100 further includes an in-
housing filter 25 that
is disposed in the device housing 2 and located between the air exhaust port
220 and the negative
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pressure device 3. That is, the airstream in the air exhaust chamber A3 is
exhausted through the air
exhaust port 220 after being filtered by the in-housing filter 25. Thus, the
effect of purifying the
exhausted air of the handheld cleaner 1000 is further improved.
In some embodiments of the present disclosure, referring to Fig. 3, the dust
cup assembly 100
further includes the dedusting device 4 that is disposed in the dedusting
chamber Al and defines a
cyclone separating chamber in the dedusting chamber Al. Thus, dust in the
dusty air entering the
dedusting chamber Al may be thrown out in a cyclone manner in the cyclone
separating chamber, so
as to further improve the dedusting effect.
Preferably, in a flow direction of the airstream, the cyclone separating
chamber includes multiple
stages of cyclone chambers communicated successively, so the dusty air
entering the dedusting
chamber Al may go through the multiple stages of cyclone chambers successively
for multi-stage dust
and air separations, thereby improving the dedusting effect. A two-stage
cyclone separating chamber
and a three-stage cyclone separating chamber will be taken as examples for
explanation in the
following, and after reading the following technical solution, those skilled
in the art may understand a
technical solution having more stages of cyclone chambers, which is not
elaborated herein.
In an example shown in Fig. 4, the two-stage cyclone separating chamber
includes a first-stage
cyclone chamber All and a second-stage cyclone chamber Al2, and the first-
stage cyclone chamber
All is communicated with the second-stage cyclone chamber A 12 and located at
the upstream of the
second-stage cyclone chamber Al2, such that the dusty air entering the
dedusting chamber Al first
enters the first-stage cyclone chamber All for dust and air separation and
then enters the second-stage
cyclone chamber Al2 for further dust and air separation. For another example,
which is not shown in
the drawings, the three-stage cyclone separating chamber includes a first-
stage cyclone chamber, a
second-stage cyclone chamber and a third-stage cyclone chamber, the first-
stage cyclone chamber is
communicated with the second-stage cyclone chamber and located at the upstream
of the second-stage
cyclone chamber, and the second-stage cyclone chamber is communicated with the
third-stage
cyclone chamber and located at the upstream of the third-stage cyclone
chamber, such that the dusty
air entering the dedusting chamber Al first enters the first-stage cyclone
chamber for dust and air
separation, then enters the second-stage cyclone chamber for dust and air
separation, and finally enters
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the third-stage cyclone chamber for dust and air separation.
Preferably, the device housing 2 has the tube shape, each stage of cyclone
chamber is configured
to be a hollow annular-columnar chamber, and in the flow direction of the
airstream, an upstream
stage of cyclone chamber surrounds a downstream stage of cyclone chamber along
the circumferential
direction of the device housing 2. For example, the first-stage cyclone
chamber surrounds the
second-stage cyclone chamber along the circumferential direction of the device
housing 2, the
second-stage cyclone chamber surrounds the third-stage cyclone chamber along
the circumferential
direction of the device housing 2, and so on. Further preferably, the most
downstream stage of cyclone
chamber surrounds the device housing 2 along the circumferential direction of
the device housing 2.
For example, as to the two-stage cyclone separating chamber, the second-stage
cyclone chamber Al2
surrounds the device housing 2 along the circumferential direction of the
device housing 2, and as to
the three-stage cyclone separating chamber, the third-stage cyclone chamber
surrounds the device
housing 2 along the circumferential direction of the device housing 2. Thus,
the overall layout of the
cyclone chambers may be compact, thereby reducing the energy consumption for
air suction of the
negative pressure device 3.
The dedusting device 4 according to some embodiments of the present disclosure
will be
described briefly in the following.
As shown in Figs. 1 and 2, the dedusting device 4 defines the two-stage
cyclone separating
chamber and hence includes a first cyclone separating member 41 and a second
cyclone separating
member 42. The first cyclone separating member 41 defines the second-stage
cyclone chamber Al2
and hence may be called a second-stage cyclone separating member, and the
second cyclone
separating member 42 defines the first-stage cyclone chamber All and hence may
be called a
first-stage cyclone separating member.
Certainly, the present disclosure is not limited thereby. The dedusting device
4 may only include
the first cyclone separating member 41 or the second cyclone separating member
42, in which case the
dedusting device 4 defines an one-stage cyclone separating chamber. A case
where the dedusting
device 4 includes the first cyclone separating member 41 and the second
cyclone separating member
42 simultaneously will be taken an example for explanation in the following,
and after reading the
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following technical solution, those skilled in the art may understand a
technical solution where the
dedusting device 4 only includes the first cyclone separating member 41 or the
second cyclone
separating member 42.
Referring to Figs. 3 and 4, when the device housing 2 is tube-shaped, the
first cyclone separating
member 41 is disposed in the dedusting chamber Al and surrounds the device
housing 2 along the
circumferential direction of the device housing 2, and the negative pressure
device 3 makes the dusty
air enter the dedusting chamber Al and undergo dust and air separation by the
first cyclone separating
member 41. Thus, when the first cyclone separating member 41 surrounds the
device housing 2 along
the circumferential direction of the device housing 2, the first cyclone
separating member 41 may
make full use of space in the dedusting chamber Al to improve the dust and air
separation effect, and
the structure of the dust cup assembly 100 becomes more compact, small and
lightweight.
Referring to Figs. 3 and 4, when the device housing 2 is tube-shaped, the
second cyclone
separating member 42 has a tube shape and sleeved between the device housing 2
and the casing 1, for
example, coaxially fitted over the device housing 2, and the negative pressure
device 3 makes the
dusty air enter the dedusting chamber Al and undergo dust and air separation
by the second cyclone
separating member 42. Thus, when the second cyclone separating member 42
surrounds the device
housing 2 along the circumferential direction of the device housing 2, the
second cyclone separating
member 42 may make full use of the space in the dedusting chamber Al to
improve the dust and air
separation effect, and the structure of the dust cup assembly 100 becomes more
compact, small and
lightweight. In this embodiment, when the dust cup assembly 100 also includes
the first cyclone
separating member 41, the first cyclone separating member 41 may be located
between the second
cyclone separating member 42 and the device housing 2, that is, the second
cyclone separating
member 42 may be located between the first cyclone separating member 41 and
the casing 1, such that
the dusty air entering the dedusting chamber Al may first undergo the dust and
air separation by the
second cyclone separating member 42 and then undergo the dust and air
separation by the first
cyclone separating member 41.
In some embodiments of the present disclosure, as shown in Figs. 2 and 4, at
least one stage of
cyclone chamber includes a plurality of cyclone air passages A10 of the same
stage, and the plurality
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of cyclone air passages A10 of the same stage are successively arranged along
the circumferential
direction of the device housing 2, such that the airstream separated from an
upper stage of cyclone
chamber may enter the plurality of cyclone air passages A10 to undergo
independent dust and air
separations, so as to further improve the dust and air separation effect and
the purifying effect.
Preferably, the most downstream stage of cyclone chamber includes a plurality
of cyclone air
passages Al0 of the most downstream stage, that are arranged successively
along the circumferential
direction of the device housing 2, the communicating chamber A2 includes the
plurality of
communication air passages A20, and the plurality of communication air
passages A20 are in
corresponding communication with the plurality of cyclone air passages Al0 of
the most downstream
stage. In the example shown in Fig. 4, for the two-stage cyclone separating
chamber, the second-stage
cyclone chamber Al2 includes the plurality of cyclone air passages A10, and
for the three-stage
cyclone separating chamber which is not shown in the drawings, the third-stage
cyclone chamber
includes the plurality of cyclone air passages A10.
The plurality of cyclone air passages A10 are in communication with the
plurality of
communication air passages A20 in one-to-one correspondence. In the examples
shown in Fig. 3 and
Fig. 4, a plurality of extension segments 1211 may be fitted in the plurality
of communication air
passages A20 in one-to-one correspondence, such that a plurality of inflow
communication holes
12110 may communicate the plurality of cyclone air passages A10 with the
plurality of
communication air passages A20 in one-to-one correspondence. Hence, the
filtration effect is better.
In some specific examples of the present disclosure, referring to Figs. 3, 4
and 7, the first cyclone
separating member 41 includes a plurality of cyclones 410 surrounding the
device housing 2, and each
cyclone 410 defines one cyclone air passage A10, such that the dusty air
entering the dedusting
chamber Al may respectively enter the plurality of cyclones 410 to undergo
independent dust and air
separations in the cyclone manner, thereby improving the dust and air
separation effect and the dust
suction effect of the handheld cleaner 1000.
Preferably, as shown in Figs. 3, 4 and 7, the cyclone 410 may have an upright
tube shape, a side
wall of the cyclone 410 may be opened to form an air inlet that extends along
a tangential direction of
the cyclone 410, a top end of the cyclone 410 may be opened to form an air
outlet, a bottom end of the
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cyclone 410 may be opened to form a dust outlet, and the top ends of the
cyclones 410 may abut
against a bottom wall of the inner cover 121 and be fitted over the plurality
of extension segments
1211 in one-to-one correspondence. That is, the plurality of extension
segments 1211 extend into the
plurality of cyclones 410 in one-to-one correspondence.
Therefore, referring to Figs. 4 and 9, the dusty air entering the cyclone 410
from the air inlet may
flow in a cyclone manner to separate dust from air, the separated dust may be
exhausted from the dust
outlet at the bottom end of the cyclone 410 and deposited at the bottom of the
dedusting chamber Al
(for example, deposited in a secondary dust accumulating chamber A13 described
hereinafter and
defined between a second tube segment 213 of the device housing 2 and a
separating tube portion 421
of the second cyclone separating member 42), and the separated air may be
exhausted from the air
outlet at the top end of the cyclone 410 and flow into the communicating
chamber A2 of the cleaner
cover 12.
Preferably, as shown in Figs. 3 and 4, the first cyclone separating member 41
includes a straight
tube segment 411 and a tapered tube segment 412. For example, when the device
housing 2 has the
upright tube shape, the straight tube segment 411 is connected to a top of the
tapered tube segment
412, and the tapered tube segment 412 has a cross section area decreased
gradually in the up-to-down
direction. Thus, the dusty air entering the cyclone 410 may undergo the dust
and air separation more
effectively and reliably while flowing in the cyclone 410 in the cyclone
manner, thus improving the
dust and air separation effect.
Preferably, as shown in Figs. 3 and 7, the first cyclone separating member 41
and the device
housing 2 are in one piece, which raises processing efficiency, spares a
procedure of assembling the
first cyclone separating member 41 with the device housing 2 to raise
assembling efficiency, and
lowers assembling difficulty due to high modularity, that is, the dust cup
assembly 100 may be
assembled easily after the user disassembles it for cleaning. Additionally,
when the first cyclone
separating member 41 and the device housing 2 are in one piece, the structural
compactness of the
dust cup assembly 100 may be enhanced to make the dust cup assembly 100 small
and lightweight,
dust capacity of the dedusting chamber Al may be improved, and strength of the
device housing 2
may be strengthened without increasing cost.
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In an example shown in Fig. 7, the first cyclone separating member 41 may
include the plurality
of cyclones 410 integrally molded to the outer circumferential wall of the
device housing 2 and
surrounding the device housing 2, thus reducing the assembling difficulty more
effectively, that is, the
user may complete the assembling and disassembling of the dust cup assembly
100 very easily. It
should be noted herein that "two components being in one piece" means two
components are
non-detachable, and that "two components being integrally molded" means that
two components are
molded simultaneously and configured as a whole non-detachable part.
Preferably, as shown in Figs. 1 and 3, when the device housing 2 is tube-
shaped, in an axial
direction of the device housing 2, the negative pressure device 3 is at least
partially located at a side of
the first cyclone separating member 41. Thus, the negative pressure device 3
may make full use of
space inside the device housing 2, while the first cyclone separating member
41 may make full use of
space outside the device housing 2, thereby making the structure of the dust
cup assembly 100 more
compact. It should be noted herein that the first cyclone separating member 41
is not shown in Figs. 1
and 2.
Alternatively, referring to Fig. 1, the negative pressure device 3 includes a
fan 31 and a motor 32
connected successively along the axial direction of the device housing 2, and
the motor 32 is spaced
apart from the first cyclone separating member 41 in the axial direction of
the device housing 2, that is,
the motor 32 is completely located at the side of the first cyclone separating
member 41, so as to make
better use of space. Moreover, since the negative pressure device 3 is
constituted by the fan 31 and the
motor 32, such that the negative pressure device 3 has a simple structure and
is convenient to obtain.
Certainly, the present disclosure is not limited thereby, and the negative
pressure device 3 may include
other components, for example, a vacuum pump.
Referring to Figs. 1 to 4, the device housing 2 includes a first tube segment
211, a transition tube
segment 212 and a second tube segment 213, in which a maximum diameter of the
first tube segment
211 is smaller than a minimum diameter of the second tube segment 213. Thus,
when the device
housing 2 and the casing 1 have the tube shape and coaxially disposed, and the
dedusting chamber Al
is defined between the inner circumferential wall of the casing 1 and the
outer circumferential wall of
the device housing 2, a first portion of the dedusting chamber Al radially
opposite to the first tube
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segment 211 has a larger capacity than a second portion of the dedusting
chamber Al radially opposite
to the second tube segment 213, and a first portion of the air exhaust chamber
A3 radially opposite to
the second tube segment 213 has a larger capacity than a second portion of the
air exhaust chamber
A3 radially opposite to the first tube segment 211.
Therefore, in a radial direction of the housing device 2, when the first
cyclone separating member
41 is opposite to the first tube segment 211, or opposite to the first tube
segment 211 and the transition
tube segment 212, the first cyclone separating member 41 may make full use of
space of the dedusting
chamber Al to improve the filtration effect on the dusty air. Meanwhile, in
the radial direction of the
housing device 2, when the negative pressure device 3 is opposite to the
second tube segment 213, or
opposite to the second tube segment 213 and the transition tube segment 212,
the negative pressure
device 3 may make full use of space of the air exhaust chamber A3 to improve
the filtration effect on
the dusty air.
Preferably, an axial length of the second tube segment 213 is greater than an
axial length of the
transition tube segment 212, for example, more than twice the axial length of
the transition tube
segment 212, but an axial length of the first tube segment 211 may be greater
than or equal to the axial
length of the transition tube segment 212. Thus, the first cyclone separating
member 41 and the
negative pressure device 3 may make better use of space, and the overall dust
suction effect of the
handheld cleaner 1000 may be improved.
Preferably, referring to Fig. 3, the first tube segment 211 and the second
tube segment 213 both
are configured as straight tube segments, and the transition tube segment 212
is a divergent tube
segment, which is convenient for processing and assembling. Thus, when the
first cyclone separating
member 41 is integrally molded to an outer circumferential wall of the first
tube segment 211 and an
outer circumferential wall of the transition tube segment 212, the first
cyclone separating member 41
may be naturally molded as the plurality of cyclones 410 spliced by a
plurality of straight tube
segments 411 and a plurality of tapered tube segments 412, which not only
makes full use of the space,
but also improves the dust and air separation effect.
In the example shown in Fig. 3, the housing body 21 has the upright tube shape
and includes the
first tube segment 211, the transition tube segment 212 and the second tube
segment 213 successively
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in the up-to-down direction, and along this direction, a cross section area of
the first tube segment 211
is equal everywhere, a cross section area of the transition tube segment 212
increases gradually, and a
cross section area of the second tube segment 213 is equal everywhere. Thus,
the processing is
convenient, and the plurality of cyclones 410 is easy to mold.
In some embodiments of the present disclosure, the device housing 2 and the
second cyclone
separating member 42 are vertically disposed, and two axial ends of the second
cyclone separating
member 42 abut against an internal wall of the casing 1. In the examples shown
in Figs. 1 and 3, a top
end the second cyclone separating member 42 abuts against a lower surface of
the inner cover 121 and
a bottom end thereof abuts against the inner bottom wall 110 of the casing 1.
Therefore, a primary annular-columnar dedusting chamber may be defined between
an outer
circumferential wall of the second cyclone separating member 42 and the inner
circumferential wall of
the casing 1, a secondary annular-columnar dedusting chamber may be defined
between an inner
circumferential wall of the second cyclone separating member 42 and the outer
circumferential wall of
the device housing 2, and the primary dedusting chamber surrounds the
secondary dedusting chamber
to defines the whole dedusting chamber together with the secondary dedusting
chamber. Since the
primary dedusting chamber and the secondary dedusting chamber are located
outside and inside of the
second cyclone separating member 42 respectively and both configured to have
annular-columnar
space, the layout of the dedusting chamber becomes more compact, and volumes
of the primary
dedusting chamber and the secondary dedusting chamber are increased to make
dust and air more
fully separated.
Referring to Figs. 3 and 4, the whole primary dedusting chamber may be
configured as the
first-stage cyclone chamber All, and the first cyclone separating member 41
may be disposed in the
secondary dedusting chamber, i.e. between the inner circumferential wall of
the second cyclone
separating member 42 and the outer circumferential wall of the device housing
2, to define the
second-stage cyclone chamber Al2 in the secondary dedusting chamber. In such a
case, rest of the
secondary dedusting chamber except the second-stage cyclone chamber Al2 is
configured as the
secondary dust accumulating chamber A13.
Preferably, referring to Figs. 1 and 2, the second cyclone separating member
42 is vertically
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disposed and includes a separating tube portion 421 and a filtration tube
portion 422 axially connected
with the separating tube portion 421. The filtration tube portion 422 may be
detachably connected to a
top end of the separating tube portion 421 and define a filtration hole 4221
communicating the
first-stage cyclone chamber All with the second-stage cyclone chamber Al2. A
bottom end of the
separating tube portion 421 may abut against the inner bottom wall 110 of the
casing 1 and a top end
of the filtration tube portion 422 may abut against the lower surface of the
inner cover 121. Hence, the
second cyclone separating member 42 is formed by connecting a tube-shaped
member having holes
(i.e. the filtration tube portion 422) therein with a tube-shaped member
having no hole (i.e. the
separating tube portion 421) therein in series, such that the second cyclone
separating member 42 has
a simple structure and is convenient to process and manufacture.
Certainly, the present disclosure is not limited thereby, and the second
cyclone separating
member 42 may be constituted by other components, for example, by a separating
tube with a
plurality of notches and filter discs embedded in the plurality of notches,
which will not be described
in detail.
Preferably, the second cyclone separating member 42 is at least partially in
one piece with the
first cyclone separating member 41. That is, the second cyclone separating
member 42 may be
completely in one piece with the first cyclone separating member 41, or only a
part of the second
cyclone separating member 42 is in one piece with the first cyclone separating
member 41. For
example, only the separating tube portion 421 and the first cyclone separating
member 41 are in one
piece, while the filtration tube portion 422 and the separating tube portion
421 are detachably
connected with each other. Thus, when the second cyclone separating member 42
is at least partially
in one piece with the first cyclone separating member 41, the assembling and
disassembling difficulty
may be further lowered and the user may conveniently disassemble the dust cup
assembly 100 for
cleaning.
In some embodiments of the present disclosure, the dedusting device 4 is
disposed in the
dedusting chamber Al and defines at least one stage of annular or columnar
cyclone chamber. For
example, when the dedusting device 4 includes the plurality of cyclones 410,
the cyclone 410 may
defines the columnar cyclone chamber, but when the dedusting device 4 includes
the second cyclone
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separating member 42, the annular cyclone chamber may be defined between the
second cyclone
separating member 42 and the casing 1.
The dedusting device 4 further defines a dust collecting groove 4210 in the
dedusting chamber
Al and the dust collecting groove 4210 is in communication with the cyclone
chamber. Thus, when
the dusty air flows in the cyclone chamber in a cyclone manner, the separated
dust may accumulate in
the dust collecting groove 4210 rather than be rolled up again by the flowing
airstream, so as to
improve the dust and air separation effect effectively.
In some preferable embodiments (not shown in the drawings) of the present
disclosure, the dust
collecting groove 4210 is defined by the dedusting device 4, and thus is
convenient to process and
realize. In a specific example, the dedusting device 4 includes a continuous
tube-shaped filter that has
a tube shape and only has the filtration hole 4221 therein (for example, the
separating tube portion 421
and the filtration tube portion 422 axially connected may make up the
continuous tube-shaped filter,
and the filtration hole 4221 may be formed in the filtration tube portion
422). The continuous
tube-shaped filter is sleeved between the device housing 2 and the casing 1 to
define the first-stage
cyclone chamber All together with the casing 1. The dust collecting groove
4210 is formed by
recessing an outer circumferential surface of the continuous tube-shaped
filter inwards and
communicates with the first-stage cyclone chamber All, that is, the outer
circumferential surface of
the continuous tube-shaped filter has a groove recessed towards its central
axis and the groove may be
used as the dust collecting groove 4210.
In some other preferable embodiments of the present disclosure, the dust
collecting groove 4210
is defined by the dedusting device 4 and the device housing 2 together, so as
to further improve the
structural compactness and save space. In a specific example, referring to
Figs. 7 and 8, the dedusting
device 4 includes a split tube-shaped filter that is sleeved between the
device housing 2 and the casing
1 to define the first-stage cyclone chamber All together with the casing 1.
The split tube-shaped filter
is tube-shaped, and has the filtration hole 4221 and a plurality of splits
formed by recessing a first
axial end face of the split tube-shaped filter to a second axial end face
thereof (i.e., the split is formed
in a surface of the split tube-shaped filter and extends from an axial end of
the split tube-shaped filter
to another axial end thereof), such that at least part of the split tube-
shaped filter is split into pieces
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(for example, the separating tube portion 421 and the filtration tube portion
422 axially connected
may make up the split tube-shaped filter, in which the filtration hole 4221
may be formed in the
filtration tube portion 422 and the separating tube portion 421 may be split
into pieces). An edge of
each piece that forms the split is bent and extends towards the device housing
2, and abuts against the
outer circumferential surface of the device housing 2. The dust collecting
groove 4210 is defined by
the split of the split tube-shaped filter and the outer circumferential
surface of the device housing 2,
and communicates with the first-stage cyclone chamber All. Specifically, the
dust collecting groove
4210 is defined by opposite bent edges of two adjacent pieces and the outer
circumferential surface of
the device housing 2.
Certainly, the present disclosure is not limited thereby, and in other
embodiments of the present
disclosure, as shown in Fig. 10, the second cyclone separating member 42 may
have no dust collecting
groove 4210 and at this time the separating tube portion 421 may be configured
to be cylindrical.
Referring to Fig. 4, preferably, the dust collecting groove 4210 extends along
the axial direction
of the device housing 2, and two axial ends of the dust collecting groove 4210
may be flush with two
axial ends of the separating tube portion 421 respectively, that is, upper and
lower ends of the dust
collecting groove 4210 are flush with upper and lower ends of the separating
tube portion 421
respectively, which may further improve the dust and air separation effect.
Certainly, the present
disclosure is not limited thereby, and the two axial ends of the dust
collecting groove 4210 may not be
flush with the two axial ends of the separating tube portion 421, in which
case an axial length of the
dust collecting groove 4210 is smaller than an axial length of the separating
tube portion 421.
Preferably, referring to Fig. 7, a plurality of dust collecting grooves 4210
are provided and
spaced apart from one another in the circumferential direction of the device
housing 2, for example,
three to eight dust collecting grooves 4210 being provided, so as to further
improve the dust and air
separation effect. Preferably, a depth Li of the dust collecting groove 4210
in a radial direction of the
first-stage cyclone separating member ranges from 8 mm to 25 mm, thus
improving the dust and air
separation effect. Preferably, a width L2 of the dust collecting groove 4210
in a circumferential
direction of the first-stage cyclone separating member ranges from 15 mm to 35
mm, thus improving
the dust and air separation effect.
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Further, referring to Fig. 7, the second cyclone separating member 42 further
includes an eaves
ring portion 423, and the eaves ring portion 423 has an inner ring wall
connected between the
separating tube portion 421 and the filtration tube portion 422, and an outer
ring wall obliquely
extending away from an outer circumferential surface of the separating tube
portion 421 along a
direction from the filtration tube portion 422 to the separating tube portion
421. Therefore, referring to
Figs. 2 and 4, the dusty air entering the first-stage cyclone chamber All may
undergo the dust and air
separation better under guidance of the eaves ring portion 423. Moreover, the
separated air may enter
the second-stage cyclone chamber Al2 more smoothly through the filtration tube
portion 422.
Furthermore, the separated dust can hardly cross the eaves ring portion 423 to
enter the second-stage
cyclone chamber Al2 through the filtration tube portion 422, thus improving
the dust and air
separation effect.
In an embodiment of the present disclosure, referring to Figs. 3 and 5, when
the casing 1 is
tube-shaped, the inner circumferential wall of the casing 1 (i.e. a part of
the whole inner surface of the
casing 1 that is not run through by its axis) is provided with a first dust-
blocking sheet 113 extending
towards an interior of the casing 1. Thus, when the dust moves in the first-
stage cyclone chamber All
in a cyclone manner, the dust may be blocked by the first dust-blocking sheet
113 rather than be rolled
up repeatedly by the airstream to obstruct the filtration hole 4221 or enter
the second-stage cyclone
chamber Al2, thus improving the dust and air separation effect.
Preferably, the first dust-blocking sheet 113 extends along an axial direction
of the casing 1.
Therefore, when the casing 1 is vertically disposed, the blocked dust may flow
downwards along the
first dust-blocking sheet 113 to the bottom of the casing 1 to prevent the
dust from being rolled up
repeatedly to obstruct the filtration hole 4221 or enter the second-stage
cyclone chamber Al2, so as to
further improve the dust and air separation effect. Preferably, a plurality of
first dust-blocking sheets
113 are provided and spaced apart from one another in a circumferential
direction of the casing 1.
Thus, in the whole circumferential direction of the casing 1, the first dust-
blocking sheets 113 may
serve to block the dust effectively, so as to further improve the dust and air
separation effect.
In an embodiment of the present disclosure, referring to Figs. 1 and 6, the
casing 1 is tube-shaped,
and an inner end wall of the casing 1 (i.e. one of two surfaces in the whole
inner surface of the casing
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1 that are run through by its axis) is provided with a second dust-blocking
sheet 114 extending
towards the interior of the casing 1. For example, when the casing 1 is
vertically disposed, the second
dust-blocking sheet 114 may extend upwards from the inner bottom wall 110 of
the casing 1. Thus,
when the dust moves in the first-stage cyclone chamber All in a cyclone
manner, the dust may be
blocked by the second dust-blocking sheet 114 rather than be rolled up
repeatedly by the airstream to
obstruct the filtration hole 4221 or enter the second-stage cyclone chamber
Al2, thus improving the
dust and air separation effect.
Preferably, the second dust-blocking sheet 114 extends along a radial
direction of the casing 1.
Therefore, in the whole radial direction of the casing 1, the second dust-
blocking sheet 114 may serve
to block the dust effectively, so as to further improve the dust and air
separation effect. Preferably, a
plurality of second dust-blocking sheets 114 are provided and spaced apart
from one another in the
circumferential direction of the casing 1. Thus, in the whole circumferential
direction of the casing 1,
the second dust-blocking sheets 114 may serve to block the dust effectively,
so as to further improve
the dust and air separation effect.
A working principle of the dust cup assembly 100 according to an embodiment of
the present
disclosure will be described with reference to the drawings.
Referring to Fig. 2, in combination with Figs. 4 and 9, the dusty air enters
the first-stage cyclone
chamber All from the dust suction inlet 112 along a tangential direction to
undergo the cyclone dust
and air separation. In this process, part of the separated dust enters and
accumulates in the dust
collecting groove 4210, rest of the separated dust falls down and accumulates
at the bottom of the
first-stage cyclone chamber All, and the separated airstream enters the second-
stage cyclone chamber
A 12 from the filtration hole 4221 in a tangential direction to undergo the
cyclone dust and air
separation. In this process, the separated dust falls down and accumulates in
the secondary dust
accumulating chamber A13, the separated airstream enters the communicating
chamber A2 through
the inflow communication hole 12110 and is filtered by the in-cover filter
1221, and the filtered
airstream enters the air exhaust chamber A3 through the outflow communication
hole 12120 and is
exhausted from the air exhaust port 220 and the opening 111 after being
filtered by the in-housing
filter 25.
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The handle assembly 200 according to some embodiments of the present
disclosure will be
described with reference to Fig. 1.
Specifically, the holding assembly has a user-friendly handheld feature, and
may be, for example,
a lift handle or a handle assembly 200. When the holding assembly is
configured as the handle
assembly 200, the user may control orientation of the dust cup assembly 100
conveniently. For
example, it is convenient for the user to make the dust suction inlet 112 of
the dust cup assembly 100
face upwards or downwards, so as to facilitate dust suction. Only the handle
assembly 200 used as the
holding assembly will be taken as an example for explanation in the following.
Additionally, it should
be noted that the structure of the lift handle is well known to those skilled
in the art and hence will not
be described in detail.
As shown in Fig. 1, the handle assembly 200 includes a handle casing 51 and a
power supply
device 52. The handle casing 51 includes a holding portion 512 for user
handholding, and the power
supply device 52 may be disposed in the holding portion 512, or may be
disposed at a position in the
handle casing 51 opposite to the holding portion 512, for example in a
mounting portion 511 to be
described below, such that a center of gravity of the handle assembly 200 may
be optimized, i.e. close
to a handheld position, and hence the user may hold the handle assembly 200
more effortlessly, which
improves comfort and convenience of using the handheld cleaner 1000.
The power supply device 52 may be a battery, for example, a rechargeable
battery, which is easy
to realize at a low cost and convenient to use.
As shown in Fig. 1, the handle casing 51 has a finger gripping portion 510,
and the mounting
portion 511 and the holding portion 512 located at two sides of the finger
gripping portion 510. The
mounting portion 511 is used to be connected with the dust cup assembly 100
and the holding portion
512 is used for holding by hand. The power supply device 52 is disposed in the
mounting portion 511
and/or in the holding portion 512. Thus, the handle casing 51 has a simple
structure and is convenient
to process and manufacture. Alternatively, the finger gripping portion 510 is
a gripping hole to be
penetrated through and gripped by fingers, the handle casing 51 is an annular
housing, and the
gripping hole is defined by an inner ring of the handle casing 51. Thus, it is
convenient for holding,
and the power supply device 52 may be mounted conveniently.
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Preferably, the power supply device 52 is mounted in the mounting portion 511
and has a same
length direction as the mounting portion 511. Thus, the power supply device 52
makes full use of
space in the mounting portion 511 to make the handle assembly 200 miniaturized
and allow the user
to hold the handle assembly 200 with less effort.
Preferably, the power supply device 52 is mounted in the holding portion 512
and has a same
length direction as the holding portion 512. Thus, the power supply device 52
makes full use of space
in the holding portion 512 to make the handle assembly 200 miniaturized and
allow the user to hold
the handle assembly 200 with less effort.
Preferably, the dust cup assembly 100 is tube-shaped, the length direction of
the mounting
portion 511 is identical to an axial direction of the dust cup assembly 100,
and the mounting portion
511 is connected to a radial side of the handle assembly 200, so as to
increase a connection area
between the mounting portion 511 and the dust cup assembly 100, enhance
connection reliability
between the handle assembly 200 and the dust cup assembly 100, and save effort
for holding.
Alternatively, the mounting portion 511 is detachably connected to the dust
cup assembly 100. That is,
the handle assembly 200 is detachably connected to the dust cup assembly 100,
and thus it is
convenient for mounting, dismounting, cleaning and replacement.
Further, as shown in Fig. 1, the handle casing 51 further includes a handle
top 513 and a handle
bottom 514 connected between the mounting portion 511 and the holding portion
512 and arranged
opposite to each other. That is, the mounting portion 511, the handle top 513,
the holding portion 512
and the handle bottom 514 are successively connected end to end to form the
handle casing 51, such
that the structure of the handle casing 51 has high reliability. Certainly,
the present disclosure is not
limited thereby. The handle casing 51 may not be annular, i.e. not include the
handle top 513 and the
handle bottom 514. Instead, the handle casing 51 may be I-shaped and
constituted by the mounting
portion 511 and the holding portion 512 arranged opposite to each other, and a
bridging portion
connected between the mounting portion 511 and the holding portion 512, and
this example is not
shown in the drawings.
Preferably, an electric control board 53 connected with the power supply
device 52 may be
provided in the handle top 513, the electric control board 53 connected with
the power supply device
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52 may be provided in the handle bottom 514, or the electric control board 53
connected with the
power supply device 52 may be provided in each of the handle top 513 and the
handle bottom 514
simultaneously. Thus, space in the handle casing 51 may be fully utilized.
The handheld cleaner 1000 according to some embodiments of the present
disclosure will be
described with reference to Figs. 16 to 18, in combination with Figs. 1 to 10.
As shown in the drawings, the handheld cleaner 1000 according to the
embodiments of the
present disclosure includes a casing 1, the negative pressure device 3, a
first detection device 500A
and a control device.
The casing 1 may have an air intake passage that refers to a passage through
which the dusty air
in the environment flows after entering the casing 1 but before being
filtered. The negative pressure
device 3 is disposed in the casing 1 and used to make the dusty air outside
the casing 1 enter the air
intake passage. For example, in a specific example of the present disclosure,
the casing 1 may include
the casing 1 and the handle casing 51 in this description, the casing 1 has
the dust suction inlet 112,
and an inner hole of the dust suction inlet 112 defines the air intake
passage. The negative pressure
device 3 may include the fan 31 and the motor 323 connected with the fan 31,
and suction strength of
the negative pressure device 3 depends on an operating power of the motor 32.
That is, the higher the
operating power of the motor 32 is, the faster the fan 31 rotates and the
greater the suction strength of
the negative pressure device 3 is; the lower the operating power of the motor
32 is, the more slowly
the fan 31 rotates and the smaller the suction strength of the negative
pressure device 3 is.
The first detection device 500A is disposed to the casing 1 and used to detect
a motion state of
the casing 1, i.e. to detect whether the casing 1 is moving and how fast the
casing 1 moves. For
example, the first detection device 500A may be an acceleration sensor or a
speed sensor. The control
device is connected with the first detection device 500A and the negative
pressure device 3. For
example, the control device may be a printed circuit board (PCB) of the
handheld cleaner 1000, and
configured to control a working state of the handheld cleaner 1000 according
to information detected
by the first detection device 500A, for example, controlling the handheld
cleaner 1000 to switch to a
turn-on state, a turn-off state, a standby state, a high-suction state and a
lower-suction state to be
described below.
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Therefore, the handheld cleaner 1000 according to the embodiments of the
present disclosure
may switch to a corresponding working state automatically and intelligently
according to a change of
its motion state, so as to achieve the dust suction effect and an energy
saving effect simultaneously.
In some specific examples of the present disclosure, the control device may be
configured to
control the negative pressure device 3 to increase the suction strength if the
first detection device
500A detects that a motion speed of the casing 1 rises. That is, when the
first detection device 500A
detects that the user moves the handheld cleaner 1000 faster, i.e., with an
increasing speed, the control
device increases the suction strength of the negative pressure device 3 to
guarantee the dust suction
effect.
In some specific examples of the present disclosure, the control device may be
configured to control
the negative pressure device 3 to decrease the suction strength if the first
detection device 500A
detects that the motion speed of the casing 1 drops. That is, when the first
detection device 500A
detects that the user moves the handheld cleaner 1000 more slowly, i.e., with
a decreasing speed, the
control device decreases the suction strength of the negative pressure device
3 to reduce the energy
consumption.
In some specific examples of the present disclosure, the control device may be
configured to
control the negative pressure device 3 to operate with a first suction
strength if the first detection
device 500A detects that the motion speed of the casing 1 is higher than a
first predetermined value,
and control the negative pressure device 3 to operate with a second suction
strength if the first
detection device 500A detects that the motion speed of the casing 1 is lower
than a second
predetermined value, in which the first predetermined value is greater than or
equal to the second
predetermined value, and the first suction strength is greater than or equal
to the second suction
strength. That is, when the first detection device 500A detects that the
motion speed of the handheld
cleaner 1000 is relatively great, the handheld cleaner 1000 may switch to the
high-suction state
automatically and intelligently; and when the first detection device 500A
detects that the motion speed
of the handheld cleaner 1000 is relatively small, the handheld cleaner 1000
may switch to the
low-suction state automatically and intelligently.
Therefore, when the first detection device 500A detects that the user moves
the handheld cleaner
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1000 in a relatively high speed, the control device may control the negative
pressure device 3 to suck
dust with a relatively great suction strength, so as to guarantee the dust
suction effect; when the first
detection device 500A detects that the user moves the handheld cleaner 1000 in
a relatively low speed,
the control device may control the negative pressure device 3 to suck dust
with a relatively small
suction strength, so as to reduce the energy consumption.
In some specific examples of the present disclosure, the control device may be
configured to
control the negative pressure device 3 to shut down, if the first detection
device 500A detects that the
casing 1 has never moved in a first predetermined duration (like one second).
That is, when the
handheld cleaner 1000 is at the turn-on state, if the user does not move the
handheld cleaner 1000 in
the first predetermined duration, i.e. no displacement of the handheld cleaner
1000 is detected by the
first detection device 500A, the control device controls the handheld cleaner
1000 to enter the standby
state where the negative pressure device 3 stops working but the first
detection device 500A keeps
working. Thus, when the user puts aside the handheld cleaner 1000 temporarily
to do something else,
the handheld cleaner 1000 may enter the standby state automatically and
intelligently, so as to save
unnecessary energy consumption and make it convenient for the user to continue
to use the handheld
cleaner 1000.
Further, the control device may be configured to control the negative pressure
device 3 to turn on,
if the first detection device 500A detects displacement of the casing 1 in a
second predetermined
duration (like ten minutes) after a shutdown of the negative pressure device
3. That is, after the
handheld cleaner 1000 enters the standby state, if the user moves the handheld
cleaner 1000 in the
second predetermined duration, i.e. the first detection device 500A detects
displacement of the
handheld cleaner 1000 in the second predetermined duration, the control device
controls the handheld
cleaner 1000 to enter the turn-on state where the negative pressure device 3
starts to work, the first
detection device 500A keeps working, and the control device controls the
working state of the
handheld cleaner 1000 according to the information detected by the first
detection device 500A.
Therefore, when the user continues to use the handheld cleaner 1000, the
handheld cleaner 1000 may
turn on automatically and intelligently, which is user-friendly.
Further, the control device may be configured to control the handheld cleaner
1000 to turn off, if
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the first detection device 500A detects no displacement of the casing 1 in the
second predetermined
duration (like ten minutes) after the shutdown of the negative pressure device
3. That is, after the
handheld cleaner 1000 enters the standby state, if the user does not move the
handheld cleaner 1000 in
the second predetermined duration, i.e. no displacement of the handheld
cleaner 1000 is detected by
the first detection device 500A, the control device controls the handheld
cleaner 1000 to enter the
turn-off state where the negative pressure device 3 stops working, the first
detection device 500A
stops working, and the control device no longer controls the working state of
the handheld cleaner
1000 according to the information detected by the first detection device 500A.
Therefore, when the
user leaves the handheld cleaner 1000 and forgets to turn it off, the handheld
cleaner 1000 may turn
off automatically and intelligently, thus saving the unnecessary energy
consumption.
It should be noted herein that the first predetermined value and the second
predetermined value
may be set according to practical requirements, for example, preset by a
designer before the handheld
cleaner 1000 leaves the factory, or set and adjusted by the user after the
handheld cleaner 1000 leaves
the factory. Meanwhile, the first suction strength and the second suction
strength may be set according
to practical requirements, for example, preset by the designer before the
handheld cleaner 1000 leaves
the factory, or set and adjusted by the user after the handheld cleaner 1000
leaves the factory.
It should be noted herein that the first predetermined duration and the second
predetermined
duration may be set according to practical requirements, for example, preset
by a designer before the
handheld cleaner 1000 leaves the factory, or set and adjusted by the user
after the handheld cleaner
1000 leaves the factory.
It should be noted herein that "the turn-on state" means that the handheld
cleaner 1000 may
conduct dust suction and switch to a corresponding working state by detecting
the motion state thereof
"the standby state" means that the handheld cleaner 1000 cannot conduct dust
suction; and "the
turn-off state" means that the handheld cleaner 1000 can neither conduct dust
suction nor switch to the
corresponding working state by detecting the motion state thereof.
In some embodiments of the present disclosure, the handheld cleaner 1000
includes a control key
connected with the control device. The control key is configured to control
the control device to start
controlling the working state of the handheld cleaner 1000 according to the
information detected by
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the first detection device 500A after being trigged by an odd number of times
(like the first time, the
third time, the fifth time, etc.), and configured to control the control
device to stop controlling the
working state of the handheld cleaner 1000 according to the information
detected by the first detection
device 500A after being trigged by an even number of times (like the second
time, the fourth time, the
sixth time, etc.). The control key may be disposed to the casing 1 or other
positions, for example,
being configured as a virtual key of a phone application.
That is, only after the user triggers the control key by the odd number of
times, can the control
device start controlling the working state of the handheld cleaner 1000
according to the information
detected by the first detection device 500A, i.e. entering an energy-saving
mode. Before the user
triggers the control key or when the user triggers the control key by the even
number of times, the
control device will not control the working state of the handheld cleaner 1000
according to the
information detected by the first detection device 500A, i.e. stopping the
energy-saving mode, even if
the first detection device 500A performs the detection. Thus, the user is
offered more options and
enjoys using the handheld cleaner 1000. Moreover, the switching between
entering the energy-saving
mode and stopping the energy-saving mode can be realized by triggering one
control key different
times, which saves space occupied by the control key and improves simplicity.
In some other embodiments of the present disclosure, the handheld cleaner 1000
further includes
a turn-on control key and a turn-off control key. The turn-on control key is
connected with the control
device and configured to control the control device to start controlling the
working state of the
handheld cleaner 1000 according to the information detected by the first
detection device 500A after
being trigged. The turn-off control key is connected with the control device
and configured to control
the control device to stop controlling the working state of the handheld
cleaner 1000 according to the
information detected by the first detection device 500A after being trigged.
The turn-on control key
and the turn-off control key may be disposed to the casing 1 and other
positions, for example, be
configured as virtual keys of a phone application.
That is, only after the user triggers the turn-on control key, can the control
device start
controlling the working state of the handheld cleaner 1000 according to the
information detected by
the first detection device 500A, i.e. entering the energy-saving mode. After
the user triggers the
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turn-off control key, the control device will not control the working state of
the handheld cleaner 1000
according to the information detected by the first detection device 500A, i.e.
stopping the
energy-saving mode, even if the first detection device 500A performs the
detection. Thus, the user is
offered more options and enjoys using the handheld cleaner 1000. Moreover, the
switching between
entering the energy-saving mode and stopping the energy-saving mode can be
realized by the turn-on
control key and the turn-off control key, which improves accuracy and
reliability of operations and
reduces the probability of misoperations.
In conclusion, in some specific embodiments of the present disclosure, by
providing the handheld
cleaner 1000 with a sensor chip for detecting displacement, speed or
acceleration, a main PCB may
automatically control the motor 32 to work with a small power when the
handheld cleaner 1000
moves at a low motion speed for cleaning, so as to reduce an output power of
the handheld cleaner
1000, and the main PCB may also automatically control the motor 32 to work
with a large power
when the handheld cleaner 1000 moves at a high motion speed for cleaning, so
as to increase the
output power of the handheld cleaner 1000, thus improving dust suction
capacity and efficiency and
saving energy. Meanwhile, if the handheld cleaner 1000 has no displacement in
a preset duration (like
one second), the handheld cleaner 1000 may enter the standby state
automatically; when the handheld
cleaner 1000 is in the standby state, if the displacement thereof happens, the
handheld cleaner 1000
may switch to the turn-on state, but if no displacement thereof happens during
a certain period of time
(like ten minutes), the handheld cleaner 1000 may turn off automatically, i.e.
entering the turn-off
state, so as to achieve the energy-saving effect. Thus, the handheld cleaner
1000 according to
embodiments of the present disclosure may provide the improved dust suction
efficiency and the
energy-saving effect.
A method for controlling the handheld cleaner 1000 according to some extended
embodiments of
the present disclosure will be described in detail.
Specifically, the method may include the following steps.
First, (step A) the motion state of the handheld cleaner 1000 is detected,
i.e. it is detected whether
the handheld cleaner 1000 is moving and how fast the handheld cleaner 1000
moves. Then, (step B)
the working state of the handheld cleaner 1000 is controlled according to the
detected motion state.
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For example, the handheld cleaner 1000 is controlled to switch to the turn-on
state, the turn-off state,
the standby state, the high-suction state and the lower-suction state
described above. Thus, with the
method for controlling the handheld cleaner 1000 according to the embodiments
of the present
disclosure, it is possible to make the handheld cleaner 1000 switch to the
corresponding working state
by detecting the motion state of the handheld cleaner 1000, so as to combine
the dust suction effect
and the energy-saving effect.
It should be noted herein that step A may be realized by the first detection
device 500A described
above, and certainly may be realized in other manners. For example, the
handheld cleaner 1000 may
be provided with a GPS, and the motion state of the handheld cleaner 1000 is
detected by a terminal
connected with the GPS. Certainly, the present disclosure is not limited
thereby, and for example, a
camera device may be provided indoors to shoot the handheld cleaner 1000, and
the motion state of
the handheld cleaner 1000 may be detected by a terminal connected with the
camera device. Step B
may be realized by the control device described above, and certainly may be
realized in other manners.
For example, the control in step B may be realized by a remote terminal or a
remote control device.
In some embodiments of the present disclosure, the method for controlling the
handheld cleaner
1000 may further include: controlling the handheld cleaner 1000 to increase
the suction strength when
it is detected that the motion speed of the handheld cleaner 1000 rises. That
is, when it is detected that
the user moves the handheld cleaner 1000 faster, i.e., with an increasing
speed, the handheld cleaner
1000 is controlled to increase the suction strength, so as to guarantee the
dust suction effect.
In some embodiments of the present disclosure, the method for controlling the
handheld cleaner
1000 may further include: controlling the handheld cleaner 1000 to decrease
the suction strength when
it is detected that the motion speed of the handheld cleaner 1000 drops. That
is, when it is detected
that the user moves the handheld cleaner 1000 more slowly, i.e., with a
decreasing speed, the handheld
cleaner 1000 is controlled to decrease the suction strength, so as to reduce
the energy consumption.
In some embodiments of the present disclosure, the method for controlling the
handheld cleaner
1000 may further include: controlling the handheld cleaner 1000 to operate
with the first suction
strength when it is detected that the motion speed of the handheld cleaner
1000 is higher than the first
predetermined value. That is, when it is detected that the user moves the
handheld cleaner 1000 at a
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relatively high speed, the handheld cleaner 1000 is controlled to switch to
the high-suction state, and
thus the handheld cleaner 1000 may suck dust with a relatively great suction
strength, so as to
guarantee the dust suction effect.
In some embodiments of the present disclosure, the method for controlling the
handheld cleaner
1000 may further include: controlling the handheld cleaner 1000 to operate
with the second suction
strength when it is detected that the motion speed of the handheld cleaner
1000 is lower than the
second predetermined value. That is, when it is detected that the user moves
the handheld cleaner
1000 at a relatively low speed, the handheld cleaner 1000 is controlled to
switch to the low-suction
state, and thus the handheld cleaner 1000 may suck dust with a relatively
small suction strength to
reduce the energy consumption.
In some embodiments of the present disclosure, the method for controlling the
handheld cleaner
1000 may further include: controlling the handheld cleaner 1000 to enter the
standby state, if no
displacement of the handheld cleaner 1000 is detected in the first
predetermined duration (like one
second), when the handheld cleaner 1000 is in the turn-on state.
That is, when the handheld cleaner 1000 is in the turn-on state, if it is
detected that the user has
never moved the handheld cleaner 1000 in the first predetermined duration (for
example, the user puts
aside the handheld cleaner 1000 to do something else), the handheld cleaner
1000 may be controlled
to enter the standby state, so as to save unnecessary energy consumption and
make it convenient for
the user to continue to use the handheld cleaner 1000.
Further, the method for controlling the handheld cleaner 1000 may further
include: controlling
the handheld cleaner 1000 to enter the turn-on state, if it is detected that
the handheld cleaner 1000 has
a displacement in the second predetermined duration, when the handheld cleaner
1000 is in the
standby state. That is, when the handheld cleaner 1000 is in the standby
state, if it is detected that the
user moves the handheld cleaner 1000 in the second predetermined duration (for
example, the user
continues to use the handheld cleaner 1000), the handheld cleaner 1000 may be
controlled to enter the
turn-on state again, which is user-friendly.
Further, the method for controlling the handheld cleaner 1000 may further
include: controlling
the handheld cleaner 1000 to enter the turn-off state, if no displacement of
the handheld cleaner 1000
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is detected in the second predetermined duration, when the handheld cleaner
1000 is in the standby
state. That is, when the handheld cleaner 1000 is in the standby state, if it
is detected that the user has
never moved the handheld cleaner 1000 in the second predetermined duration
(for example, the user
leaves the handheld cleaner 1000 and forgets to turn it off), the handheld
cleaner 1000 may be
controlled to enter the turn-off state, so as to save the unnecessary energy
consumption.
In some embodiments of the present disclosure, the method for controlling the
handheld cleaner
1000 may further include: receiving an instruction of turning on the energy-
saving mode, and starting
to control the working state of the handheld cleaner 1000 according to the
detected motion state
thereof after receiving the instruction. That is, only after the instruction
of turning on the
energy-saving mode is received, can the working state of the handheld cleaner
1000 be controlled
according to the detected information, i.e. entering the energy-saving mode.
Thus, the user may be
offered more options and enjoy using the handheld cleaner 1000.
In some embodiments of the present disclosure, the method for controlling the
handheld cleaner
1000 may further include: receiving an instruction of turning off the energy-
saving mode, and
stopping controlling the working state of the handheld cleaner 1000 according
to the detected motion
state thereof after receiving the instruction. That is, after the instruction
of turning off the
energy-saving mode is received, the handheld cleaner 1000 cannot be controlled
to switch the working
state thereof, i.e. cannot enter the energy-saving mode, even if the
information is detected. Thus,
actual requirements of the user may be satisfied better.
In some specific examples of the present disclosure, reception of the
instruction of turning on the
energy-saving mode and reception of the instruction of turning off the energy-
saving mode may be
integrated into one key, for example, into the control key described above.
When the control key is
triggered by the odd number of times (like the first time, the third time, the
fifth time, etc.), the
instruction of turning on the energy-saving mode is received to make the
handheld cleaner 1000 enter
the energy-saving mode; when the control key is triggered by the even number
of times (like the
second time, the fourth time, the sixth time, etc.), the instruction of
turning off the energy-saving
mode is received to make the handheld cleaner 1000 stop the energy-saving
mode.
In some specific examples of the present disclosure, the reception of the
instruction of turning on
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the energy-saving mode and the reception of the instruction of turning off the
energy-saving mode
may be integrated into two keys respectively, for example into the turn-on
control key and the turn-off
control key described above. When the turn-on control key is triggered, the
instruction of turning on
the energy-saving mode is received to make the handheld cleaner 1000 enter the
energy-saving mode;
when the turn-off control key is triggered, the instruction of turning off the
energy-saving mode is
received to make the handheld cleaner 1000 stop the energy-saving mode.
The handheld cleaner 1000 according to some embodiments of the present
disclosure will be
described with reference to Fig. 19, in combination with Figs. 1 to 10.
As shown in the drawings, the handheld cleaner 1000 according to the
embodiments of the
present disclosure includes the casing 1, the negative pressure device 3, a
second detection device
500B and a control device.
The casing 1 may have the air intake passage that refers to a passage through
which the dusty air
in the environment flows after entering the casing 1 but before being
filtered. The negative pressure
device 3 is disposed in the casing 1 and used to make the dusty air outside
the casing 1 enter the air
intake passage. For example, in a specific example of the present disclosure,
the casing 1 may include
the casing 1 and the handle casing 51 in this description, the casing 1 has
the dust suction inlet 112,
and the inner hole of the dust suction inlet 112 defines the air intake
passage. The negative pressure
device 3 may include the fan 31 and the motor 323 connected with the fan 31,
suction strength of the
negative pressure device 3 depends on an operating power of the motor 32. That
is, the higher the
operating power of the motor 32 is, the faster the fan 31 rotates and the
greater the suction strength of
the negative pressure device 3 is; the lower the operating power of the motor
32 is, the more slowly
the fan 31 rotates and the smaller the suction strength of the negative
pressure device 3 is.
The second detection device 500B is disposed to the casing 1 and used to
detect a dust
concentration in the air intake passage, in which the term "dust concentration
in the air intake
passage" refers to a dust concentration at a certain section of the air intake
passage, or an average dust
concentration in a certain segment of sections of the air intake passage, or
an average dust
concentration in the whole air intake passage. "The dust concentration at the
certain section" refers to
a ratio of an area occupied by the dust contained in the dusty air within the
certain section to an area
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of the certain section.
In a specific example of the present disclosure, the second detection device
500B may include an
emitter 501B and a receiver 502B, and the emitter 501B is disposed opposite to
the receiver 502B,
such that the dust entering the air intake passage may go through a space
between the emitter 501B
and the receiver 502B. The emitter 501B and the receiver 502B may be disposed
at two sides in the
air intake passage respectively, for example, disposed in the dust suction
inlet 112 and located at two
diametrical ends of the dust suction inlet 112 respectively.
The emitter 501B may be used to emit light to the receiver 502B, and the
receiver 502B may be
used to receive the light emitted by the emitter 501B. When the dusty
airstream flows through the
space between the emitter 501B and the receiver 502B, the dust may block some
light from being
received by the receiver 502B, so the amount of light received by the receiver
502B decreases. In such
a way, when a large amount of dust flows through the space between the emitter
501B and the
receiver 502B, i.e., the dust centration of the dusty air that flows through
the space between the
emitter 501B and the receiver 502B is relatively high, the amount of light
received by the receiver
502B is small; when a small amount of dust flows through the space between the
emitter 501B and the
receiver 502B, i.e., the dust centration of the dusty air that flows through
the space between the
emitter 501B and the receiver 502B is relatively low, the amount of light
received by the receiver
502B is large. Thus, the dust centration of the dusty air that flows through
the space between the
emitter 501B and the receiver 502B may be judged simply and reliably according
to the amount of
light received by the receiver 502B. It should be noted that structures of the
emitter 501B and the
receiver 502B are well known to those skilled in the art and hence will not be
described in detail.
Certainly, the present disclosure is not limited thereby, and the second
detection device 500B
may be configured as other devices. In another specific example of the present
disclosure, the second
detection device 500B may be an image detection system, for example, including
a camera and a data
terminal. The camera may shoot a dust condition in the air intake passage, and
the data terminal may
obtain the dust concentration in the air intake passage through computation
and analysis according to
image information shot by the camera. In one more specific example of the
present disclosure, the
second detection device 500B may be a weight detection system, for example,
including a sensitive
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scale and a data terminal, and the sensitive scale may be disposed at a bottom
of the air intake passage
to monitor a weight change in the air intake passage. Since dust is heavier
than air, the weight change
in the air intake passage mainly reflects a dust weight change, and then the
data terminal may obtain
the dust concentration in the air intake passage through computation and
analysis according to weight
information measured by the sensitive scale.
The control device is connected with the second detection device 500B and the
negative pressure
device 3. For example, the control device may be the PCB of the handheld
cleaner 1000, and
configured to control the working state of the handheld cleaner 1000 according
to the information
detected by the second detection device 500B, for example, controlling the
handheld cleaner 1000 to
switch to the high-suction state or the lower-suction state. Therefore, the
handheld cleaner 1000
according to the embodiments of the present disclosure may switch to the
corresponding working state
automatically and intelligently according to changes of the dust concentration
in the air intake passage,
so as to achieve the dust suction effect and the energy-saving effect
simultaneously.
In some specific examples of the present disclosure, the control device may be
configured to
control the negative pressure device 3 to increase the suction strength
thereof if the second detection
device 500B detects that the dust concentration rises. That is, when the
second detection device 500B
detects that the dust concentration in the air intake passage becomes high,
the control device increases
the suction strength of the negative pressure device 3 to guarantee the dust
suction effect.
In some specific examples of the present disclosure, the control device may be
configured to
control the negative pressure device 3 to decrease the suction strength
thereof if the second detection
device 500B detects that the dust concentration drops. That is, when the
second detection device 500B
detects that the dust concentration in the air intake passage becomes low, the
control device decreases
the suction strength of the negative pressure device 3 to reduce the energy
consumption.
In some specific examples of the present disclosure, the control device may be
configured to
control the negative pressure device 3 to operate with a first suction
strength if the second detection
device 500B detects that the dust concentration is higher than a first preset
value, and control the
negative pressure device 3 to operate with a second suction strength if the
second detection device
500B detects that the dust concentration is lower than a second preset value,
in which the first preset
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value is greater than or equal to the second preset value, and the first
suction strength is greater than or
equal to the second suction strength. That is, when the second detection
device 500B detects that the
dust concentration in the air intake passage is relatively high, the handheld
cleaner 1000 may switch to
the high-suction state automatically and intelligently; and when the second
detection device 500B
detects that the dust concentration in the air intake passage is relatively
low, the handheld cleaner
1000 may switch to the low-suction state automatically and intelligently.
Therefore, when there is much dust on the surface to be cleaned, i.e. when the
second detection
device 500B detects that the dust concentration in the air intake passage is
relatively high, the control
device may control the negative pressure device 3 to suck dust with relatively
great suction strength,
so as to guarantee the dust suction effect; when there is little dust on the
surface to be cleaned, i.e.
when the second detection device 500B detects that the dust concentration in
the air intake passage is
relatively low, the control device may control the negative pressure device 3
to suck dust with
relatively small suction strength, so as to reduce the energy consumption.
It should be noted herein that the first preset value and the second preset
value may be set
according to practical requirements, for example, preset by the designer
before the handheld cleaner
1000 leaves the factory, or set and adjusted by the user after the handheld
cleaner 1000 leaves the
factory. Meanwhile, the first suction strength and the second suction strength
may be set according to
practical requirements, for example, predetermined by the designer before the
handheld cleaner 1000
leaves the factory, or set and adjusted by the user after the handheld cleaner
1000 leaves the factory.
In some embodiments of the present disclosure, the handheld cleaner 1000
includes a control key
connected with the control device. The control key is configured to control
the control device to start
controlling the working state of the handheld cleaner 1000 according to the
information detected by
the second detection device 500B after being trigged by an odd number of times
(like the first time,
the third time, the fifth time, etc.), and configured to control the control
device to stop controlling the
working state of the handheld cleaner 1000 according to the information
detected by the second
detection device 500B after being trigged by an even number of times (like the
second time, the fourth
time, the sixth time, etc.). The control key may be disposed to the casing 1
or other positions, for
example, being configured as a virtual key of a phone application.
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That is, only after the user triggers the control key by the odd number of
times, can the control
device start controlling the working state of the handheld cleaner 1000
according to the information
detected by the second detection device 500B, i.e. entering the energy-saving
mode. Before the user
triggers the control key or when the user triggers the control key by the even
number of times, the
control device will not control the working state of the handheld cleaner 1000
according to the
information detected by the second detection device 500B, i.e. stopping the
energy-saving mode, even
if the second detection device 500B performs the detection. Thus, the user is
offered more options and
enjoys using the handheld cleaner 1000. Moreover, the switching between
entering the energy-saving
mode and stopping the energy-saving mode can be realized by triggering one
control key different
times, which saves space occupied by the control key and improves simplicity.
In some other embodiments of the present disclosure, the handheld cleaner 1000
further includes
a turn-on control key and a turn-off control key. The turn-on control key is
connected with the control
device and configured to control the control device to start controlling the
working state of the
handheld cleaner 1000 according to the information detected by the second
detection device 500B
after being trigged. The turn-off control key is connected with the control
device and configured to
control the control device to stop controlling the working state of the
handheld cleaner 1000 according
to the information detected by the second detection device 500B after being
trigged. The turn-on
control key and the turn-off control key may be disposed to the casing 1 and
other positions, for
example, being configured as virtual keys of a phone application.
That is, only after the user triggers the turn-on control key, can the control
device start
controlling the working state of the handheld cleaner 1000 according to the
information detected by
the second detection device 500B, i.e. entering the energy-saving mode; after
the user triggers the
turn-off control key, the control device will not control the working state of
the handheld cleaner 1000
according to the information detected by the second detection device 500B,
i.e. stopping the
energy-saving mode, even if the second detection device 500B performs the
detection. Thus, the user
is offered more options and enjoys using the handheld cleaner 1000. Moreover,
the switch between
entering the energy-saving mode and stopping the energy-saving mode can be
realized by the turn-on
control key and the turn-off control key, which improves accuracy and
reliability of operations and
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reduce the probability of misuse.
In conclusion, in the handheld cleaner 1000 according to some specific
embodiments of the
present disclosure, an emitting sensor and a receiving sensor are respectively
provided at two sides of
an air passage, through which the sucked dust passes, so that when the dust
passes through the air
passage between the two sensors, the sensors may perceive the amount of dust
and transmit a signal
indicating the amount of dust to the main PCB, and thus the main PCB adjusts
the power output by
the motor 32 according to the signal, thereby improving the dust suction
efficiency and saving energy.
Another method for controlling the handheld cleaner 1000 according to some
extended
embodiments of the present disclosure will be described in detail.
Specifically, the method may include the following steps.
First, (step A) a concentration of dust sucked into the handheld cleaner 1000
is detected, i.e. the
dust concentration in the air intake passage of the handheld cleaner 1000 is
detected. Then, (step B)
the working state of the handheld cleaner 1000 is controlled according to the
detected dust
concentration. For example, the handheld cleaner 1000 is controlled to switch
to the high-suction state
or the low-suction state described above. Thus, according to the method for
controlling the handheld
cleaner 1000 according to the embodiments of the present disclosure, it is
possible to make the
handheld cleaner 1000 switch to the corresponding working state according to
changes of the dust
concentration in the air intake passage, so as to combine the dust suction
effect and the energy-saving
effect.
It should be noted herein that step A may be realized by the second detection
device 500B
described above, and certainly may be realized in other manners. For example,
the handheld cleaner
1000 may be provided with a camera device for shooting a dust condition on the
surface to be cleaned,
and the concentration of dust sucked into the handheld cleaner 1000 may be
judged by a terminal
connected with the camera device. Step B may be realized by the control device
described above, and
certainly may be realized in other manners. For example, the control in step B
may be realized by a
remote terminal or a remote control device.
In some embodiments of the present disclosure, the method for controlling the
handheld cleaner
1000 may further include: controlling the handheld cleaner 1000 to increase
the suction strength when
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it is detected that the concentration of dust sucked into the handheld cleaner
1000 rises. That is, when
it is detected that the concentration of dust sucked into the handheld cleaner
1000 becomes high, the
handheld cleaner 1000 is controlled to increase the suction strength, so as to
guarantee the dust suction
effect.
In some embodiments of the present disclosure, the method for controlling the
handheld cleaner
1000 may further include: controlling the handheld cleaner 1000 to decrease
the suction strength when
it is detected that the concentration of dust sucked into the handheld cleaner
1000 drops. That is, when
it is detected that the concentration of dust sucked into the handheld cleaner
1000 becomes low, the
handheld cleaner 1000 is controlled to decrease the suction strength, so as to
reduce the energy
consumption.
In some embodiments of the present disclosure, the method for controlling the
handheld cleaner 1000
may further include: controlling the negative pressure device 3 to operate
with the first suction
strength when it is detected that the dust concentration is higher than the
first preset value. That is,
when it is detected that the dust concentration is relatively high, i.e. there
is much dust on the surface
to be cleaned, the handheld cleaner 1000 is controlled to switch to the high-
suction state, and thus the
handheld cleaner 1000 may suck dust with a relatively great suction strength,
so as to guarantee the
dust suction effect.
In some embodiments of the present disclosure, the method for controlling the
handheld cleaner
1000 may further include: controlling the negative pressure device 3 to
operate with the second
suction strength when it is detected that the dust concentration is lower than
the second preset value.
That is, when it is detected that the dust concentration is relatively low,
i.e. there is little dust on the
surface to be cleaned, the handheld cleaner 1000 is controlled to switch to
the low-suction state, and
thus the handheld cleaner 1000 may suck dust with a relatively small suction
strength, so as to reduce
the energy consumption.
In some embodiments of the present disclosure, the method for controlling the
handheld cleaner
1000 may further include: receiving an instruction of turning on the energy-
saving mode, and starting
to control the working state of the handheld cleaner 1000 according to the
detected dust concentration
after receiving the instruction. That is, only after the instruction of
turning on the energy-saving mode
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is received, can the working state of the handheld cleaner 1000 be controlled
according to the detected
information, i.e. entering the energy-saving mode. Thus, the user may be
offered more options and
enjoy using the handheld cleaner 1000.
In some embodiments of the present disclosure, the method for controlling the
handheld cleaner
1000 may further include: receiving an instruction of turning off the energy-
saving mode, and
stopping controlling the working state of the handheld cleaner 1000 according
to the detected dust
concentration after receiving the instruction. That is, after the instruction
of turning off the
energy-saving mode is received, the handheld cleaner 1000 cannot be controlled
to switch the working
state, i.e. stopping the energy-saving mode, even if the information is
detected. Thus, actual
requirements of the user may be satisfied better.
In some specific examples of the present disclosure, reception of the
instruction of turning on the
energy-saving mode and reception of the instruction of turning off the energy-
saving mode may be
integrated into one key, for example, into the control key described above.
When the control key is
triggered by the odd number of times (like the first time, the third time, the
fifth time, etc.), the
instruction of turning on the energy-saving mode is received to make the
handheld cleaner 1000 enter
the energy-saving mode; when the control key is triggered by the even number
of times (like the
second time, the fourth time, the sixth time, etc.), the instruction of
turning off the energy-saving
mode is received to make the handheld cleaner 1000 stop the energy-saving
mode.
In some specific examples of the present disclosure, the reception of the
instruction of turning on
the energy-saving mode and the reception of the instruction of turning off the
energy-saving mode
may be integrated into two keys, for example into the turn-on control key and
the turn-off control key
respectively. When the turn-on control key is triggered, the instruction of
turning on the energy-saving
mode is received to make the handheld cleaner 1000 enter the energy-saving
mode; when the turn-off
control key is triggered, the instruction of turning off the energy-saving
mode is received to make the
handheld cleaner 1000 stop the energy-saving mode.
In conclusion, the handheld cleaner 1000 according to some specific
embodiments of the present
disclosure has the following advantages.
a. The negative pressure device 3 is disposed in the casing 1, such that the
dust cup assembly 100
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may enjoy a compact, small and lightweight overall structure and be used with
high comfort, and the
air passages in the dust cup assembly 100 have a compact layout and thus
result in less suction power
loss and higher energy efficiency.
b. The cyclone separating device is provided in the casing 1, thus improving
the cleaning effect
of the handheld cleaner 1000, and when the dedusting device 4 surrounds the
negative pressure device
3, the working noise of the handheld cleaner 1000 may be reduced, thus
improving environmental
friendliness of the handheld cleaner 1000.
c. When the negative pressure device 3 and the device housing 2 are in one
piece, space may be
saved effectively to further improve the structural compactness of the
handheld cleaner 1000, the dust
capacity may be improved, and the strength of the device housing 2 may be
strengthened without
increasing cost, such that the device housing 2 may protect the negative
pressure device 3 better to
prolong the service life of the negative pressure device 3.
d. Other components in the dust cup assembly 100, except some components in
one piece, may
be connected in a detachable manner, such that the dust cup assembly 100 is
convenient to assemble
and disassemble and also may be selectively assembled and disassembled, which
facilitates targeted
cleaning of internal components of the handheld cleaner 1000 and improves the
cleaning effect of the
handheld cleaner 1000.
e. The motor 32 and the cyclone 410 are axially spaced apart from each other,
so as to make
better use of the space in the casing 1 and improve the dust suction effect.
f. The air exhaust port 220 is disposed at the bottom of the dust cup assembly
100, the airstream
purified by the handheld cleaner 1000 is exhausted downwards, which prevents
the dust cup assembly
100 from blowing air to the user, improves the comfort of using the handheld
cleaner 1000, and hence
raises the user's willingness to use the handheld cleaner 1000.
g. The dust collecting groove 4210 is provided, such that the dust accumulates
in dust collecting
groove 4210 may be kept away from the airstream flowing in the casing 1 and
hence will not be rolled
up easily to block the filter or enter the next stage of cyclone chamber, and
moreover, after the dust in
dust collecting groove 4210 accumulates to a certain amount, dust outside the
dust collecting groove
4210 may be adhered to, thereby preventing the dust from being blown up and
improving the cleaning
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effect. Additionally, the first dust-blocking sheet 113 and the second dust-
blocking sheet 114 are
provided in the casing 1 to further prevent the dust from being blown
repeatedly to block the filter or
enter the next stage of cyclone chamber, which improves the cleaning effect.
h. The center of gravity of the handle assembly 200 is raised, such that the
whole handheld
cleaner 1000 may be held more effortlessly.
i. The extension pipe 300 may enlarge the whole angle range of dust suction of
the handheld
cleaner 1000 on one hand, and also may be detached from the dust cup assembly
100 to be used
separately on the other hand.
j. The first detection device 500A is provided, such that the handheld cleaner
1000 may adjust the
working state thereof automatically according to its own motion state, thus
achieving the dust suction
effect and the energy-saving effect simultaneously.
k. The second detection device 500B is provided, such that the handheld
cleaner 1000 may adjust
the working state thereof automatically according to the dust concentration,
thus achieving the dust
suction effect and the energy-saving effect simultaneously.
Embodiment 2
Hereinafter, a handheld cleaner W according to embodiments of the present
disclosure will
be described with reference to Figs. 20 and 21.
As shown in Figs. 20 and 21, the handheld cleaner W includes a dust cup
assembly WD and a
handle assembly WE, in which, the dust cup assembly WD includes a casing D1, a
dedusting device
D2 and a negative pressure device D3. The casing DI may have an air suction
port and an air exhaust
port, the negative pressure device D3 is disposed in an interior of the casing
D1 and used to suck
dusty air from environment into the interior of the casing D1 via the air
suction port, the dedusting
device D2 is disposed in the interior of the casing D1 and used to perform
dust and air separation for
the airflow sucked into the casing Dl. The separated airflow may be exhausted
out of the casing D1
via the air exhaust port by the negative pressure device D3, and the separated
dust matter may be
retained in the interior of the casing DI. It should be noted herein that the
handheld cleaner refer to a
cleaner that a user may pick up the whole machine by handholding motion, which
differs from a
cleaner in the prior art that the whole machine needs to be pushed to move on
a support surface.
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Referring to Figs. 20 and 21, the handle assembly WE is mounted to the dust
cup assembly WD,
for example, the handle assembly WE may be mounted to the casing D1 and used
for handholding,
that is to say, the user may pick up the dust cup assembly WD by holding the
handle assembly WE so
as to perform cleaning work. In addition, optionally, the handle assembly WE
may include a handle
casing El and a power supply device E2, in which, the handle casing El is
disposed to the casing DI
and used for handholding, the power supply device E2 is mounted to the handle
casing El and is
electrically connected to the negative pressure device D3, thus, the power
supply device E2 may
supply power to the negative pressure device D3, furthermore, since the power
supply device E2 is
mounted to the handle casing El of the handle assembly WE and the negative
pressure device D3 is
mounted in the casing D1 of the dust cup assembly WD, an overall gravity
center of the handheld
cleaner W is optimized, such that the user may hold the handheld cleaner W
more easily and
effortlessly.
Hereinafter, the dust cup assembly WD according to embodiments of the present
disclosure
will be described with reference to Figs. 20 and 21.
Referring to Figs. 20 and 21, the dust cup assembly WD includes the casing D1,
the negative
pressure device D3 and the dedusting device D2, in which, the casing Dl
includes a cup body Dll
and a cleaner cover D12, an accommodating space with an open top is defined in
the cup body D11,
the negative pressure device D3 and the dedusting device D2 are both mounted
in the accommodating
space in the interior of the cup body D 11 and the dedusting device D2 is
located above the negative
pressure device D3.
As examples shown in Figs. 20 and 21, an air exhaust chamber D101, a dedusting
chamber D102
and a dust collecting chamber D103 are provided in the cup body D11, in which,
the air exhaust
chamber D101 is configured to have an upright columnar shape (a cross section
thereof is not limited
to have regular shapes such as a circular shape, a polygonal shape, etc.), the
dedusting chamber D102
(a cross section thereof is not limited to be in the shape of a closed
circular ring, a closed polygonal
ring, may also be an irregular ring) surrounds the air exhaust chamber D101 by
one circle, the dust
collecting chamber D103 is located below the dedusting device D2 and the air
exhaust chamber D101,
the dedusting device D2 is provided in the dedusting chamber D102, the
negative pressure device D3
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is provided in the dust collecting chamber D103 and in communication with the
air exhaust chamber
D101.
As shown in Figs. 20 and 21, the cleaner cover D12 capable of being opened and
closed is
disposed on the cup body Dll to open and close the accommodating space, the
dedusting device D2 is
designed to be withdrawable, that is to say, the dedusting device D2 is
detachably provided in the
casing Dl. Thus, when the handheld cleaner W needs to be cleaned, the user may
open the cleaner
cover D12 by himself and withdraw the dedusting device D2 located above
upwardly from the interior
of the casing D1, and clean it, which is convenient for the user to perform
the cleaning, and improves
the cleaning effect of the handheld cleaner W. Furthermore, when the user
needs to perform a dust
collection work using the handheld cleaner W, the user may mount the dedusting
device D2 back into
the cup body Dll by himself, and then cover the cleaner cover D12 on the top
of the cup body D11,
i.e. close the cleaner cover D12, such that the handheld cleaner W may operate
normally.
Preferably, referring to Figs. 20 and 21, a first end and a second end
opposite to each other are
provided on edges of the cleaner cover D12 (for example, when the cleaner
cover D12 is circular, the
first end and the second end are located at two sides of the cleaner cover D12
in a diameter direction
thereof), the first end is articulated with the casing Dl, and the second end
is connected to the casing
Di by a snap connection. Thus, after the snap connection is released, the user
may lift the second end
of the cleaner cover D12 to open the cleaner cover D12, which is convenient
for the user to open the
cleaner cover D12, and avoids problems of being lost when the cleaner cover
D12 is removed
completely and being hard to be assembled back to the casing D1 after the
cleaner cover D12 is
removed completely. It should be noted herein that, the snap structure for
connecting the casing DI
and the cleaner cover D12 is well known by those skilled in the art, for
example, it may be a snap
structure for opening a cover of a rice cooker, which will not be described in
detail herein. Of course,
the present disclosure is not limited thereto, the cleaner cover D12 may be
designed as a structure
completely withdrawable from the cup body D11, which will not be described in
detail herein.
Further, as shown in Figs. 20 and 21, a communicating chamber is provided in
the cleaner cover
D12, an end face at a side of the cleaner cover D12 facing towards the cup
body Dll has an air inlet
communicating the communicating chamber with the dedusting chamber D102 and an
air outlet
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communicating the communicating chamber with the air exhaust chamber D101, the
end face at the
side of the cleaner cover D12 is provided with a filter D121 which is
detachable and seals the air inlet.
Thus, the airflow separated from the dedusting chamber D102 may enter the
communicating chamber
after passing through the filter D121 and the air inlet, and then the airflow
entering the communicating
chamber is exhausted into the air exhaust chamber D101 via the air outlet.
Thus, the communicating
chamber and the filter D121 are disposed to the cleaner cover D12, which may
further improve the
cleaning effect of the handheld cleaner W. Furthermore, since the cleaner
cover D12 is disposed at a
position that the user may take it directly and a side surface of the filter
D121 used for filtrating faces
outward, the user may clearly see that whether the filter D121 needs to be
cleaned, and when the filter
D121 needs to be cleaned, the user may easily remove the filter D121 and then
mount it back after
cleaning.
Further, referring to Figs. 20 and 21, the cup body Dll includes a mounting
frame D111 and a
dust collecting cup D112, the dedusting device D2 is supported on a top of the
mounting frame D111,
the negative pressure device D3 is mounted to a bottom of the mounting frame
D111. That is to say,
on one hand, the mounting frame D111 may support the dedusting device D2, such
that the dedusting
device D2 may be taken out of the cup body D1 1 when the user lifts the
dedusting device D2
upwardly, on the other hand, the mounting frame D111 may be used for mounting
and fixing the
negative pressure device D3, such that the negative pressure device D3 is
located below the dedusting
device D2 so as to avoid affecting the negative pressure device D3 being taken
out upwardly.
As shown in Figs. 20 and 21, the dust collecting cup D112 is a casing that at
least a top thereof is
opened, and covers over the negative pressure device D3, and the dust
collecting cup D112 is
detachably connected to the mounting frame D111. That is to say, the dust
collecting cup D112 is
detachably fixed together with the mounting frame D111. So that, when the user
removes the dust
collecting cup D112 from the mounting frame D111, the negative pressure device
D3 is still mounted
to the mounting frame D111 and does not move, such that the user may pour the
dust in the dust
collecting cup D112 and clean it, after cleaning the dust collecting cup D112,
the user may fit it over
the negative pressure device D3 from bottom to top and connect the dust
collecting cup D112 to the
mounting frame D111, thereafter, the dust collecting cup D112 may continue to
collecting the dust.
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Thus, with the dust cup assembly WD according to embodiments of the present
disclosure, the
cleaner cover D12 is openable, the dust collecting cup D112, the dedusting
device D2 and the filter
D121 are all detachable components, such that the user may selectively
withdraw an component to be
cleaned for cleaning, which is convenient for the user to use.
For example, in some optional embodiments of the present disclosure, the dust
collecting cup
D112 may be detachably connected to the mounting frame D111 by a button-hook
structure, in which,
the button-hook structure includes a hook for connecting the dust collecting
cup D112 and the
mounting frame D111 together, and a button for unlocking the hook, that is to
say, when the button is
pressed, the hook may perform a release motion, such that the dust collecting
cup D112 and the
mounting frame D111 are disconnected, thus the dust collecting cup D112 may be
removed from the
mounting frame D111. In which, specific structures and motion principles of
the hook that locks two
components together and the button unlocks the hook are well known by those
skilled in the art,
which will not be described in detail herein.
For example, in other optional embodiments of the present disclosure, the dust
collecting cup
D112 is detachably connected to the mounting frame D111 by an internal-
external-thread structure.
For example, an outer circumferential surface of a top end of the dust
collecting cup D112 may have
an external thread, the mounting frame D111 is annular and an inner
circumferential surface thereof
has an internal thread. Thus, when the dust collecting cup D112 is rotated,
the external thread may be
threaded into the internal thread, such that the internal thread and the
external thread are in a threaded
fit, thus the dust collecting cup D112 may be mounted to the mounting frame
D111.
In some embodiments of the present disclosure, referring to Figs. 20 and 21,
the mounting frame
D111 includes a ring D1111, a limiting and supporting portion D1112 and a
fixed mounting portion
D1113. A top cup ring D1121 of the dust collecting cup D112 is connected to
the ring D1111 in a butt
connection, that is to say, the top cup ring D1121 of the dust collecting cup
D112 may be fitted over
the ring D1111, the top cup ring D1121 of the dust collecting cup D112 may
also be fitted in the ring
D1111, a lower end of the ring D1111 may also be connected to a upper end face
of the casing D1 in a
butt connection, so as to achieve that the dust collecting cup D112 may be
detachably connected to the
ring D1111. Thus, since a shape of the ring D1111 may be easily matched to a
shape of the top cup
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ring D1121 of the dust collecting cup D112, such that the dust collecting cup
D112 may be simply
mounted to the mounting frame D111, furthermore, sealing between the ring
D1111 and the dust
collecting cup D112 may be easily ensured, and an overall operation
performance of the handheld
cleaner W is ensured.
Referring to Figs. 20 and 21, the fixed mounting portion D1113 is provided in
the ring D1111,
that is to say, the fixed mounting portion D1113 may be directly or indirectly
fixed in the ring D1111,
and the fixed mounting portion D1113 is used to fix the negative pressure
device D3, that is to say, the
negative pressure device D3 may be fixedly mounted to the fixed mounting
portion D1113. The
limiting and supporting portion D1112 is provided in the ring D1111, that is
to say, the limiting and
supporting portion D1112 may be directly or indirectly fixed in the ring
D1111, the limiting and
supporting portion D1112 is fitted with the dedusting device D2 to limit a
displacement of the
dedusting device D2 in directions other than an upward direction, that is to
say, the limiting and
supporting portion D1112 is fitted with the dedusting device D2, such that the
dedusting device D2
may only be moved upward and taken out, but may not fall downward or traverse
in a horizontal plane.
Thus, with the limiting and supporting portion D1112, on one hand, the
dedusting device D2 can be
mounted to operate normally, and on the other hand, the dedusting device D2
may be conveniently
taken out. It should be noted herein that the wording "provided in the ring
D1111" in the present
paragraph means that an axial projection of the ring D1111 is located inside
an inner ring of the ring
D1111.
Thus, a structure of the mounting frame D111 including the ring D1111, the
limiting and
supporting portion D1112 and the fixed mounting portion D1113 is simple, the
one mounting frame
D111 has multiple functions of mounting the dedusting device D2, the negative
pressure device D3
and the dust collecting cup D112, such that the mounting frame D111 has a
powerful function.
Preferably, referring to Fig. 20, the mounting frame D111 is formed in one
piece, that is to say,
the mounting frame D111 is one non-detachable integral component (unless it is
damaged
intentionally), for example, the ring D1111, the limiting and supporting
portion D1112 and the fixed
mounting portion D1113 may be processed into one integral component by an
injection molding
process. Thus, the mounting frame D111 has a simpler structure for easy
production, and is more
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modularized for convenient assembly, furthermore, the structure of the dust
cup assembly WD is more
clearly and simpler, which is not easy to cause failure and has a high
reliability.
In embodiments of the present disclosure, referring to Fig. 20, the cup body
Dll may further
include a suction nozzle D113, the suction nozzle D113 communicates an
external environment of the
handheld cleaner W with the interior of the dedusting chamber D102 to serve as
an air suction port
and to introduce the airflow from the external environment into the dedusting
chamber D102. The
suction nozzle D113 is fixed to the mounting frame D111, or the suction nozzle
D113 and the
mounting frame D111 are integrally formed (that is to say, the mounting frame
D111 and the suction
nozzle D113 are non-detachable unless it is damaged intentionally, i.e. the
mounting frame D111 and
the suction nozzle D113 are formed as one integral component). Thus, the
mounting frame D111 has a
powerful function and is more modularized, such that the structure of the dust
cup assembly WD is
more concise and clearer, which is not easy to cause failure and has a high
reliability.
In addition, in embodiments of the present disclosure, referring to Fig. 20,
at least part of the
handle casing El described herein and the mounting frame D111 are also
integrally formed (that is to
say, the mounting frame D111 and at least part of the handle casing El are non-
detachable unless it is
damaged intentionally, i.e. the mounting frame D111 and the at least part of
the handle casing El are
formed as one integral component). Thus, the mounting frame D111 has a
powerful function and is
more modularized, such that the structure of the dust cup assembly WD is more
concise and clearer,
which is not easy to cause failure and has a high reliability.
Preferably, referring to Fig. 20, the suction nozzle D113, the at least part
of the handle casing El
and the mounting frame D111 are integrally formed (that is to say, the
mounting frame D111, the at
least part of the handle casing El and the suction nozzle D113 are non-
detachable unless it is damaged
intentionally, i.e. the mounting frame D111, the at least part of the handle
casing El and the suction
nozzle D113 are formed as one integral component). Thus, the mounting frame
D111 has a powerful
function and is more modularized, such that the structure of the dust cup
assembly WD is more
concise and clearer, which is not easy to cause failure and has a high
reliability.
In embodiments of the present disclosure, the dedusting device D2 has a
limiting hole D210
penetrating therethrough in an up-and-down direction and a support groove D211
with an open bottom,
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and the support groove D211 includes two support sub-grooves D2111 disposed at
two radial sides of
the limiting hole D210. The limiting and supporting portion D1112 includes a
limiting post Da and a
support beam Db, the limiting post Da is provided in the ring D1111 and fitted
in the limiting hole
D210 in an insertion manner, the support beam Db includes two support sub-
beams Dbl disposed at
two radial sides of the limiting post Da respectively, and the two support sub-
beams Dbl are
correspondingly provided in the two support sub-grooves D2111 and support top
walls of the
corresponding support sub-grooves D2111. It should be noted herein that, since
the bottom of the
support groove D211 is open, the support groove D211 has the top wall, and if
a top wall of the
support groove D211 is open, the support groove D211 may have a bottom wall.
Thus, the limiting hole D210 is fitted with the limiting post Da in an
insertion manner, which
effectively avoids a movement of the dedusting device D2 in a horizontal plane
with respect to the
mounting frame D111. The support groove D211 is supported by the support beam
Db, such that the
mounting frame D111 may effectively support the dedusting device D2 to prevent
the dedusting
device D2 from falling, and may effectively prevent the dedusting device D2
from rotating in the
horizontal plane with respect to the mounting frame D111. Furthermore,
structures of the dedusting
device D2 and the limiting and supporting portion D1112 are simple, and may be
processed and
assembled conveniently, and the supporting effect and the limiting effect on
the dedusting device D2
performed by the limiting and supporting portion D1112 are excellent.
It should be noted herein that, the wording "the limiting post Da is fitted in
the limiting hole
D210 in an insertion manner" means that shapes of the limiting post Da and the
limiting hole D210
are matched to each other, after the limiting post Da is coaxially inserted
into the limiting hole D210,
the limiting post Da is in a clearance fit with the limiting hole D210 and the
clearance is uniform.
Preferably, a cross section of the limiting post Da is circular, but it is not
limited thereto, the cross
section of the limiting post Da may also be polygonal or irregular, in which,
when the cross section of
the limiting post Da is circular, a radial direction of the limiting post Da
refers to a diameter direction
thereof, and when the cross section of the limiting post Da is not circular,
the radial direction of the
limiting post Da refers to a length direction of the cross section thereof.
In one optional embodiment of the present disclosure, referring to Figs. 20
and 21, each support
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sub-beam Db 1 has one splicing plate Dc extending downward. The dedusting
device D2 includes a
split-type filtration tube D22 (the split-type filtration tube D22 refers to a
filtration tube having a
non-closed ring-like or an interrupted ring-like cross section) and a
filtration tube cover plate D21, the
split-type filtration tube D22 includes two arc filters D221 respectively
disposed at two sides of the
support groove D211, two splicing plates Dc are connected between side edges
of the two arc filters
D221 adjacent to each other so as to make up a continuous filtration tube (the
continuous filtration
tube refers to a filtration tube having a closed-ring-like cross section)
together with the two arc-shaped
filters D221, the filtration tube cover plate D21 is covered on a top of the
continuous filtration tube,
and the limiting hole D210 is formed in a center of the filtration tube cover
plate D21 and the support
groove D211 is formed in a bottom wall of the filtration tube cover plate D21.
Thus, the dedusting
device D2 has a simple structure, and may be assembled to the mounting frame
D111 conveniently.
Furthermore, by forming the continuous filtration tube, a first stage cyclone
separation may be
performed between an outer circumferential surface of the continuous
filtration tube and the inner
circumferential surface of the cup body D11, so as to obtain a good dedusting
effect.
Optionally, the dedusting device D2 further includes a cyclone assembly, the
cyclone assembly is
provided in the split-type filtration tube D22, two cyclone assemblies are
included and located at two
sides of the support groove D211, each cyclone assembly is connected to the
corresponding arc filter
D221 and includes a plurality of cyclones arranged in a circumferential
direction of the split-type
filtration tube D22, the filtration tube cover plate D21 has air outlet pipes
D212 correspondingly
extending into each cyclone, in which, each cyclone is configured as a conical
tube having a bottom
tapered and a tangential inlet in a side wall thereof Thus, the airflow
separated by the first stage
cyclone separation outside the continuous filtration tube may enter an
interior of the continuous
filtration tube via a filtration hole D220 of the arc filter D221, and then
enters the plurality of cyclones
to be subject to a second stage cyclone separation. The airflow separated by
the second stage cyclone
separation may output upward via the air outlet pipe D212, such that the
dedusting effect of the dust
cup assembly WD may be further improved. A plurality of air inlets of the
above-described cleaner
cover D12 are included and directly opposite to upper ends of the plurality of
air outlet pipes D212
one to one, thus, the dedusting chamber D102 may conveniently introduce the
air into the
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communicating chamber, which has a high efficiency for dust absorbing.
Preferably, the limiting post Da is a hollow cylinder and the air exhaust
chamber D101 is defined
therein, a bottom of the air exhaust chamber D101 is in communication with the
negative pressure
device D3, for example, the fixed mounting portion D1113 may be a cover body
in a butt connection
with and in communication with the limiting post Da in an up-and-down
direction, and the negative
pressure device D3 is disposed in the cover body. Thus, when the negative
pressure device D3 is
started, a negative pressure may be produced in the cover body, a negative
pressure may also be
produced in the limiting post Da in communication with the cover body,
meanwhile, a negative
pressure may also be produced in the communicating chamber in the cleaner
cover 12 in
communication with the air exhaust chamber D101 in the limiting post Da, a
negative pressure may
also be produced in the dedusting chamber D102 in communication with the
communicating chamber,
such that the dedusting chamber D102 may suck airflow from the outer
environment via the suction
nozzle D113.
Hereinafter, referring to Figs. 20 and 21, the handle assembly WE according to
embodiments of the present disclosure will be described.
Referring to Figs. 20 and 21, the power supply device E2 is disposed to an
inner top of the handle
casing El or an outer top of the handle casing El, for example, the power
supply device E2 may be a
battery assembly embedded in the handle casing D1, or the power supply device
E2 may also be a
battery pack detachably connected to the handle casing El. Thus, by disposing
the power supply
device E2 to the top of the handle casing El, an overall gravity center of the
handheld cleaner W is
optimized, such that the user may hold the handheld cleaner W more
effortlessly.
Optionally, referring to Figs. 20 and 21, the handle casing El includes an
holding portion Ell,
and upper arm portion E 12 and a lower arm portion E13, in which, the holding
portion Eli is
vertically provided and is spaced apart from the casing DI, the upper arm
portion E 12 is connected
between an upper end of the holding portion Ell and the casing D1, the lower
arm portion E 13 is
connected between a lower end of the holding portion Ell and the casing D1, in
which, the power
supply device E2 is provided to an inner or an outer top of the upper arm
portion E12, so as to ensure
that the power supply device E2 is located at the top of the handle casing El.
Thus, by providing the
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upper arm portion E12 and the lower arm portion E13, the holding portion Eli
may be reliably
mounted to the casing D1, furthermore, by providing the holding portion Eli,
the user may firmly
grasp the handle assembly WE. Of course, the present disclosure is not limited
thereto, in other
embodiments of the present disclosure, the handle casing El may also have
other shapes, for example,
and the handle casing El may also do not include the lower arm portion E13
etc., which will not be
described herein.
Preferably, referring to Figs. 20 and 21, the upper end of the holding portion
Ell is connected to
a center of a bottom of the upper arm portion E12, the lower end thereof
extends towards a direction
far away from the casing D1, that is to say, the holding portion Eli obliquely
extends towards the
direction far away from the casing D1 along a direction from top to bottom,
such that the user may
hold the holding portion Eli more effortlessly, and the user may adjust an
operation angle of the
handheld cleaner W more easily. In addition, the upper end of the holding
portion Ell is connected to
the center of the bottom of the upper arm portion E12, such that a support
reliability of the holding
portion Ell may be improved and a force to the holding portion Ell is reduced.
Optionally, the lower
arm portion El3 obliquely extends upward in a direction from the casing D1 to
the holding portion
Eli, thus, a grasping space for the user increases, such that the user may
conveniently grasp the
holding portion El 1.
In one optional example of the present disclosure, referring to Fig. 20, the
casing D1 has an
electrical connection port, the power supply device E2 is mounted to the outer
top of the upper arm
portion E12 and is electrically inserted in the electrical connection port,
thus, the power supply device
E2 may be conveniently removed for charging. It should be understood herein
that, the electrical
connection port may be electrically connected to the negative pressure device
D3 via a wire
penetrating the handle casing El and the casing D1, which is not limited
thereto.
Preferably, the holding portion Ell may include an inner holding casing and an
outer holding
casing, the upper arm portion E 12 may include an upper-arm upper casing and
an upper-arm lower
casing, and the lower arm portion E 13 may include a lower-arm lower casing
and a lower-arm upper
casing, in which, the inner holding casing, the upper-arm lower casing, the
lower-arm upper casing
and the casing D1 are formed in one piece, the outer holding casing may be
detachably mounted to an
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outer side of the inner holding casing, the upper-arm upper casing may be
detachably mounted to a
top of the upper-arm lower casing, and the lower-arm lower casing may be
detachably mounted to a
bottom of the lower-arm upper casing.
Preferably, referring to Figs. 20 and 21, the casing D1 has a cylindrical
outer surface, the upper
arm portion E12 is connected to a top end of the circumferential surface of
the casing D1, and the
lower arm portion E 13 is connected to a bottom end of the circumferential
surface of the casing Dl.
Thus, an overall size of the handle assembly WE may be increased, an overall
gravity center of the
handheld cleaner W is effectively optimized, and the user may hold the
handheld cleaner W more
effortlessly.
Preferably, referring to Figs. 20 and 21, the casing D1 has a cylindrical
outer surface, a center
line of the holding portion Eli (i.e. a center line of the holding portion Ell
extending in a length
direction thereof), a center line of the upper arm portion E12 (i.e. a center
line of the upper arm
portion E12 extending in a length direction thereof), a center line of the
lower arm portion E13 (i.e. a
center line of the lower arm portion E13 extending in a length direction
thereof) and an axis of the
casing D1 are located in the same plane. Thus, an overall gravity center of
the handheld cleaner W is
effectively optimized, and the user may hold the handheld cleaner W more
effortlessly.
Hereinafter, referring to Figs. 20 and 21, a work principle of the handheld
cleaner W
according to embodiments of the present disclosure will be briefly described.
When the negative pressure device D3 (for example, including an electric motor
and a fan) is
started, the dedusting chamber D102 sucks the dusty air from the outer
environment via the suction
nozzle D113. After entering the cup body D11, the dusty air undergoes the
first stage cyclone
separation between the outer circumferential surface of the continuous
filtration tube and the inner
circumferential surface of the cup body D11, the dust matter separated by the
first stage cyclone
separation falls into the bottom of the dust collecting cup D112, and the
airflow separated by the first
stage cyclone separation may enter the continuous filtration tube via the
filtration hole D220 of the
continuous filtration tube, and enters the plurality of cyclones to undergo
the second stage cyclone
separation via the tangential inlet in the side wall of each cyclone. The dust
matter separated by
cyclone separation in the plurality of cyclones falls downward into the bottom
of the dust collecting
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cup D112 via the outlet of the bottom of the cyclone, and the airflow
separated by the second stage
cyclone separation in the plurality of cyclones may flow upward, pass through
the air outlet pipe D212
of the filtration tube cover plate D21 and the filter D121 and air inlet of
the cleaner cover D12, and
enter the communicating chamber, the airflow in the communicating chamber is
discharged into the
air exhaust chamber D101 via air outlet of the cleaner cover D12, and finally
the airflow flows
through the negative pressure device D3 and is discharged via the air exhaust
port of the casing Dl.
Hereinafter, beneficial effects of the handheld cleaner W according to
embodiments of the
present disclosure will be briefly described.
1. As to a handheld cleaner in the related art, a power supply device and a
negative pressure
device are both provided in the handle, and the power supply device is
generally disposed to a bottom
of the handle, such that the handle has a large volume and weight, which is
not only inconvenient but
also laborious for handholding with little comfort.
However, with the handheld cleaner W according to embodiments of the present
disclosure, the
power supply device E2 is disposed to the top of handle casing El, meanwhile,
the negative pressure
device D3 is provided in the dust collecting cup D112, such that a
distribution of the center of gravity
of the handheld cleaner W is effectively improved, i.e. a position of the
center of overall gravity of the
handheld cleaner W is balanced, the comfort of the user holding the handheld
cleaner W is improved,
such that the user may use the handheld cleaner W more effortlessly and
easily, improving the user
experience.
2. As to the handheld cleaner in the related art, a dedusting device is fixed
inside the cleaner body,
the user may not remove the dedusting device by himself to clean it, thus, the
residual dust in the
dedusting device easily causes bacterial growth, resulting in stink, and
further causes a secondary
pollution for the next use, which reduces the overall cleaning effect.
However, with the handheld cleaner W according to embodiments of the present
disclosure, since
the cleaner cover D12 may be conveniently opened, and the dedusting device D2
may be taken out of
the interior of the dust collecting cup D112, such that the user may clean the
dedusting device D2
conveniently, which avoids residual dust in the casing D1, avoids problems of
growth of bacteria,
generation of stink, etc., and improves the overall cleaning effect of the
handheld cleaner W.
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Embodiment 3
Hereinafter, a handheld cleaner V according to an embodiment of the present
disclosure
will be described with reference to Figs. 22 to 33.
As shown in Figs. 22, 28 and 30, the handheld cleaner V includes a dust cup
assembly VB and a
handle assembly VC, in which the dust cup assembly VB includes a casing B1, a
dedusting device B2
and a negative pressure device B3. The casing D1 has an air suction port and
an air exhaust port. The
negative pressure device B3 is provided in the casing B1 and configured to
suck dusty air from the
environment into the casing B1 via the air suction port. The dedusting device
B2 is provided in the
casing B1 and configured to perform dust and air separation on an airflow
sucked into the casing Bl.
The separated air may be exhausted out of the casing B1 via the air exhaust
port by the negative
pressure device B3, whereas the separated dust may remain in the casing Bl. It
should be noted herein
that the handheld cleaner refers to a cleaner whose whole machine can be
picked up by the user
through a hand-holding action, which distinguishes from the cleaner in the
prior art whose whole
machine needs to be pushed on a support surface.
Referring to Figs. 22 and 30, the handle assembly VC is mounted to the dust
cup assembly VB,
and for example, the handle assembly VC may be mounted to the casing B1 and
used for handhold,
that is, the user may pick up the dust cup assembly VB by holding the handle
assembly VC so as to
perform the cleaning work. In addition, optionally, the handle assembly VC may
include a handle
casing Cl and a power supply device C2, in which the handle casing Cl is
provided to the casing B1
and used for handhold, and the power supply device C2 is mounted to the handle
casing Cl and
electrically connected with the negative pressure device B3, such that the
power supply device C2
may supply power to the negative pressure device B3. Furthermore, since the
power supply device C2
is mounted to the handle casing Cl of the handle assembly VC, and the negative
pressure device B3 is
mounted inside the casing B1 of the dust cup assembly VB, a gravity center of
the entire handheld
cleaner V may be optimized, such that the user may hold the handheld cleaner V
more easily and
effortlessly.
Hereinafter, the dust cup assembly VB according to the embodiment of the
present disclosure
will be described.
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Referring to Fig. 30, a central chamber B101, a dedusting chamber B102 and a
dust collecting
chamber B103 are provided within the casing Bl, in which the central chamber
B101 has an upright
columnar shape and includes an air exhaust chamber B1011 and a mounting
chamber B1012 in
communication with each other in an up-and-down direction. The dedusting
chamber B102 has a
closed annular cross section and the dedusting chamber B102 surrounds the air
exhaust chamber
B1011 by one circle. The dust collecting chamber B103 is located below the
dedusting chamber B102,
has a non-closed annular cross section and surrounds the mounting chamber
B1012 by less than one
circle. It should be noted herein that a cross section of the central chamber
B101 is not limited to
having a regular shape such as a circular shape or a polygonal shape, and a
dimension of each cross
section of the central chamber B101 may be inconsistent, that is, the shape of
the central chamber
B101 is not limited to a regular columnar shape having equal cross sections.
In addition, a cross
section of the dedusting chamber B102 is not limited to having a closed
circular-ring shape or a closed
polygonal-ring shape, but for example, may have an irregular ring shape.
Similarly, a cross section of
the dust collecting chamber B103 is not limited to having an open circular-
ring shape or an open
polygonal-ring shape, but for example, may have an irregular open ring shape.
Referring to Figs. 30 and 33, at least a majority of the negative pressure
device B3 is disposed in
the mounting chamber B1012, that is, a volume of a portion of the negative
pressure device B3
disposed within the mounting chamber B1012 accounts for more than half of a
total volume of the
negative pressure device 83. Thus, by configuring the cross section of the
dust collecting chamber
B103 to have the non-closed annular shape, i.e. the open ring shape, an
occupation space of the dust
collecting chamber 8103 may be reduced to increase an occupation space of the
mounting chamber
81012, thereby facilitating the mounting of the negative pressure device B3.
Preferably, a lower
portion of the air exhaust chamber B1011 is configured as an expansion
segment, that is, a transverse
volume of the lower portion of the air exhaust chamber B1011 is greater than a
transverse volume of
an upper portion thereof. For example, a cross-sectional area of the lower
portion of the air exhaust
chamber B1011 may increase gradually, in which case an upper end of the
negative pressure device
B3 extends into the expansion segment, so as to achieve a compact structure
and lower a height of the
mounting chamber B1012. Certainly, the present disclosure is not limited to
this, and the negative
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pressure device B3 may be completely disposed in the mounting chamber B1012.
Certainly, the present disclosure is not limited to this, and in other
embodiments of the present
disclosure, the casing B1 may not have the air exhaust chamber B1011, in which
case the dedusting
chamber B102 may be a columnar cavity and superposed upon the dust collecting
chamber B103 and
the mounting chamber B1012, and the mounting chamber B1012 may be in direct
communication
with the dedusting chamber B102. Additionally, referring to Fig. 30, when the
casing Bl has the air
exhaust chamber B1011 therein, the air exhaust chamber B1011 may be
communicated with the
dedusting chamber B102 through a communicating chamber B105 or other means,
such that the
negative pressure device B3 may be communicated with the dedusting chamber
B102 through the air
exhaust chamber B1011 and the communicating chamber B105, so as to suck the
dusty air in the
environment into the dedusting chamber B102.
Referring to Figs. 22 and 30, the casing B1 may include a cabinet B11 and a
dust cup B12, in
which the central chamber B101 and the dedusting chamber B102 both are formed
in the cabinet B11
and configured to mount the negative pressure device B3 and the dedusting
device B2 respectively.
The dust collecting chamber B103 is formed in the dust cup B12 and configured
to receive the dust
separated by the dedusting device B2. The cabinet B11 and the dust cup B12 are
detachably
connected, such that when the handheld cleaner V needs to be used for
cleaning, the user may mount
the dust cup B12 to the cabinet B11 by himself to collect dust, and when the
handheld cleaner V does
not need to be used for cleaning, e.g. when the dust in the dust cup B12 needs
to be poured out, or
when the handheld cleaner V needs to be cleaned or maintained, the user may
detach the dust cup B12
from the cabinet B11.
For example, in the embodiment shown in Figs. 23, 30 and 31, the cabinet B11
may be
detachably connected with the dust cup B12 via a quick release assembly, the
dust collecting chamber
B103 is located in front of the mounting chamber B1012 (i.e. a cup casing B122
is disposed in the
front of a top of a base B121), and the quick release assembly includes a
first assembly B141 disposed
at a front top of the dust cup B12 and a second assembly B142 disposed at a
rear bottom of the dust
cup B12. Thus, the quick release assembly may detachably connect the front top
of the dust cup B12
with the cabinet B11 and detachably connect the rear bottom of the dust cup
B12 with the cabinet B11
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respectively, so as to improve reliability and stability of connection between
the dust cup B12 and the
cabinet B11 effectively, and to facilitate the assembling and disassembling of
the cabinet B11 and the
dust cup B12.
Alternatively, referring to Figs. 22 and 23, the first assembly B141 includes
a snap plate B1411
and a snap piece B1412, in which the snap plate B1411 is disposed at a front
bottom of the cabinet
B11, extends downwards and has a snap hole B14110, and the snap piece B1412 is
disposed at the
front top of the dust cup B12 and extends forwards into the snap hole B14110
to limit a detachment of
the dust cup B12 and the cabinet B11 in a direction other than a front-and-
rear direction. That is, by
the fitting between the snap plate B1411 and the snap piece B1412, the dust
cup B12 and the cabinet
B11 cannot be separated in other directions but only in the front-and-rear
direction. Thus, the first
assembly B141 has a simple structure, is convenient to process and assemble or
disassemble, and has
high reliability in position limitation.
Alternatively, referring to Figs. 22, 30 and 31, the second assembly B142
includes a first snap
hook B1421, a second snap hook B1422, a movable latch B1423 and an unlocking
button B1424. The
first snap hook B1421 is disposed at a rear bottom of the cabinet B11 and has
a front end bent
downwards to define a hooking groove. The second snap hook B1422 is disposed
at the rear bottom of
the dust cup B12 and has a rear end bent upwards to extend into the hooking
groove so as to limit the
detachment of the dust cup B12 and the cabinet B11 in the front-and-rear
direction. That is, by the
fitting between the first snap hook B1421 and the second snap hook B1422, the
dust cup B12 and the
cabinet B11 cannot be separated in the front-and-rear direction. Thus, the
second assembly B142 has a
simple structure, is convenient to process and assemble or disassemble, and
has high reliability in
position limitation. In addition, through combined position limitation of the
first assembly B141 and
the second assembly B142, the dust cup B12 and the cabinet B11 cannot be
separated in any direction,
thus enhancing the assembling reliability of the casing Bl.
Alternatively, referring to Figs. 22, 30 and 31, the second assembly B142 may
further include the
movable latch B1423 and the unlocking button B1424. The movable latch B1423 is
disposed at the
rear bottom of the cabinet B11 and is movable in the front-and-rear direction,
and a front end of the
movable latch B1423 abuts against a bottom of the second snap hook B1422 to
prevent the second
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snap hook B1422 from moving downwards out of the hooking groove, such that the
movable latch
B1423 may prevent the second snap hook B1422 from moving downwards, so as to
ensure the
reliability of position limitation between the second snap hook B1422 and the
first snap hook B1421.
The unlocking button B1424 capable of being pressed is disposed to the cabinet
B11 and fitted with
the movable latch B1423. The unlocking button B1424 is configured to move the
movable latch
B1423 backwards when being pressed, so as to release the position limitation
on the second snap hook
B1422. That is, when the unlocking button B1424 is pressed down, the unlocking
button B1424 drives
the movable latch B1423 to move backwards, and at this time the front end of
the movable latch
B1423 does not abut against the bottom of the second snap hook B1422 any
longer, such that the
second snap hook B1422 may move downwards out of the hooking groove to release
the position
limitation therebetween. It can be understood herein that through a downward
movement of the
unlocking button B1424, the movable latch B1423 may be unlocked in various
ways, for example,
through fitting between a wedge-shaped block and a wedge-shaped groove shown
in Fig. 22, which
will not be elaborated herein.
As shown in Figs. 22 to 25, the dust cup B12 may include the base B121 and the
cup casing
B122. The cup casing B122 is configured to have a non-closed annular cross
section with an opening,
so as to define the dust collecting chamber B103 having the non-closed annular
cross section in the
cup casing B122. The cup casing B122 is disposed at the top of the base B121,
and a mounting space
B107 located outside the dust collecting chamber B103 is defined between an
inner-ring wall face
B1221 of the cup casing B122 and a top wall of the base B121. A top of the
mounting space B107 is
directly opened, and a side portion thereof is opened by an opening. Thus, a
portion of the cabinet B11
for containing the negative pressure device B3 may be mounted in the mounting
space B107 via the
opened portion of the mounting space B107, such that the cabinet B1 and the
negative pressure device
B3 may be assembled or disassembled very conveniently, thereby improving the
assembling and
disassembling efficiency and providing use convenience.
Preferably, referring to Figs. 23 and 24, the base B121 is configured to have
a flat cylindrical
shape (i.e. a cylinder having a diameter greater than an axial height
thereof), and an outer-ring wall
face B1222 of the cup casing B122 is configured as an arc-shaped plate formed
by vertically
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stretching an arc of an edge of the base B121. That is, the outer-ring wall
face B1222 of the cup casing
B122 lies in a cylindrical surface where an outer circumferential wall face of
the base B121 is located.
Thus, the base B121 may be smoothly transmitted to the cup casing B122 at a
junction of the base
B121 and the cup casing B122, so as to improve overall aesthetics of the dust
cup B12. Preferably, a
central angle of the above-described arc is 1800-200 , that is, a central
angle of the outer-ring wall
face B1222 of the cup casing B122 is 180 -200 , so it may be ensured that a
size of the dust
collecting chamber B103 is large enough to improve a dust collection amount of
the dust cup B12. In
addition, the inner-ring wall face B1221 of the cup casing B122 may be
processed as an arc-shaped
plate formed by vertically stretching an arc-shaped curve, so as to facilitate
processing and achieve
good processing technology.
Referring to Figs. 22, 23 and 30, the cabinet Bll may include an upper body
B111 and a lower
body B112, the upper body B111 is disposed at a top of the lower body B112 and
defines the air
exhaust chamber B1011 and the dedusting chamber B102 therein, and the lower
body B112 is
disposed at a bottom of the upper body B111 and defines the mounting chamber
B1012 therein, in
which the lower body B112 is mounted in the mounting space B107 via the opened
portion of the
mounting space B107, and the upper body B111 is supported on the top of the
cup casing B122. Thus,
the cabinet B11 has a simple structure and is matched with the profile of the
dust cup B12, so that the
assembling and disassembling of the cabinet B11 and the dust cup B12 are
convenient, and an overall
structure of the casing B1 is highly reliable.
Referring to Figs. 23 and 32, the lower body B112 may include a protection
casing plate B1121
and an appearance casing plate B1122, in which the protection casing plate
B1121 is disposed
adjacent to the inner-ring wall face B1221, the appearance casing plate B1122
is located at a side of
the protection casing plate B1121 away from the inner-ring wall face B1221,
and the mounting
chamber B1012 is defined between the appearance casing plate B1122 and the
protection casing plate
B1121. Thus, the lower body B112 has a simple structure and is convenient to
process. Preferably, a
shape of the protection casing plate B1121 is matched with a shape of the
inner-ring wall face B1221,
that is, a distance between the protection casing plate B1121 and the inner-
ring wall face B1221 is
equal everywhere, so as to improve a space utilization rate and address
problems such as installation
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interference. Preferably, two side edges of the protection casing plate B1121
are connected with two
side edges of the cup casing 122 in a ring-length direction correspondingly
and respectively, thereby
improving an overall aesthetic effect of the handheld cleaner V.
For example, in the embodiment shown in Figs. 22, 23, 24 and 32, the cup
casing B122 is
disposed on a front portion of the base B121 and has a cross section of a
circular-ring shape
protruding forwards, the protection casing plate B1121 is configured as an arc-
shaped plate protruding
forwards, and the appearance casing plate B1122 is configured as an arc-shaped
plate protruding
rearwards. Left and right ends of the protection casing plate B1121 are
respectively connected to an
inner surface of the appearance casing plate B1122 to define the mounting
chamber B1012 between
the protection casing plate B1121 and the appearance casing plate B1122. A
left end of the appearance
casing plate B1122 extends forwards on the left and is connected with a left
end of the cup casing
B122, and a right end of the appearance casing plate B1122 extends forwards on
the right and is
connected with a right end of the cup casing B122. Thus, the lower body B112
has a simple structure
and is easy to process.
Preferably, as shown in Figs. 22, 23, 30 and 32, the mounting chamber B1012
may be further
provided with an air-exhaust filtration device B4 therein, the air-exhaust
filtration device B4 is located
between the negative pressure device B3 and the appearance casing plate B1122
and an air exhaust
space B106 is defined between the air-exhaust filtration device B4 and the
appearance casing plate
B1122, in which the base B121 supports a bottom of the lower body B112 and
avoids a bottom of the
air exhaust space B106. Therefore, the airflow sucked into the mounting
chamber B1012 by the
negative pressure device B3 may undergo filtration of the air-exhaust
filtration device B4, and then be
exhausted out of the casing B1 through the bottom of the air exhaust space
B106, so as to improve an
overall cleaning effect of the handheld cleaner V. Furthermore, since the base
B121 supports the
bottom of the lower body B112, it is possible to effectively prevent the
negative pressure device B3
and the air-exhaust filtration device B4 from falling down, and also to
prevent the cabinet B11 from
applying the entire pressure thereof to the cup casing B122 and hence causing
the cup casing B122 to
be crushed. In addition, the cabinet B11 may further include a bottom cover
mounted at a bottom of
the protection casing plate B1121, so as to further prevent the negative
pressure device B3 from
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falling down.
Preferably, as shown in Figs. 23 and 32, the protection casing plate B1121
and/or the appearance
casing plate B1122 have a sliding groove B11210 extending in the up-and-down
direction, the
air-exhaust filtration device B4 has an elastic sliding sheet B41, and the
elastic sliding sheet B41 is
slidably fitted in the sliding groove B11210 and has an elastic interference
fit with the sliding groove
B11210. Thus, through the elastic interference fit between the elastic sliding
sheet B41 and the sliding
groove B11210, it is possible to realize quick assembling and disassembling of
the air-exhaust
filtration device B4 and the mounting chamber B1012, so as to make it
convenient for the user to
replace the air-exhaust filtration device B4. For example, in the embodiment
shown in Figs. 23 and
32, left and right sides of the protection casing plate B1121 each have one
sliding groove B11210, left
and right sides of the air-exhaust filtration device B4 are each provided with
one elastic sliding sheet
B41, the elastic sliding sheet B41 at the left side is slidably fitted in the
sliding groove B11210 at the
left side, and the elastic sliding sheet B41 at the right side is slidably
fitted in the sliding groove
B11210 at the right side, thereby making the fitted sliding movement more
stable and the position
limitation more reliable.
Referring to Figs. 30 and 32, an isolating screen B5 may be further provided
in the mounting
chamber B1012 and interposed between the negative pressure device B3 and the
air-exhaust filtration
device B4, thus further improving operation reliability of the negative
pressure device B3 and
preventing the air-exhaust filtration device B4 from being rolled into the
negative pressure device B3.
Referring to Figs. 28 and 30, the upper body B111 may include a tube casing
B1111 and an air
exhaust pipe B1112, in which the air exhaust pipe B1112 is provided in the
tube casing B1111 and the
dedusting chamber B102 is defined between the air exhaust pipe B1112 and the
tube casing B1111, a
bottom of the air exhaust pipe B1112 penetrates through a bottom wall of the
tube casing B1111 and
the air exhaust chamber B1011 in communication with the mounting chamber B1012
is defined in the
air exhaust pipe B1112. In such a case, the dedusting device B2 may be fitted
over the air exhaust pipe
B1112 and located within the dedusting chamber B102, and the upper end of the
negative pressure
device B3 may stretch into the air exhaust pipe B1112. Preferably, a lower
portion of the air exhaust
pipe B1112 is configured as an expansion pipe segment B11120, that is, a
transverse volume of the
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lower portion of the air exhaust pipe B1112 is greater than a transverse
volume of an upper portion
thereof. For example, a cross-sectional area of the lower portion of the air
exhaust pipe B1112 may
increase gradually, so as to achieve a compact structure of the casing B1 and
lower an overall height
of the casing Bl.
In some embodiments of the present disclosure, referring to Figs. 22, 28 and
29, the casing B1
may further include a cleaner cover B13 capable of being opened and closed and
disposed at a top of
the cabinet B11, that is, the cleaner cover B13 may be disposed at the top of
the tube casing B1111, in
which case the dedusting device B2 is removably disposed within the dedusting
chamber B102 and
located above the negative pressure device B3. Thus, when the handheld cleaner
V needs to be
cleaned, the user may open the cleaner cover B13 by himself/herself and take
the dedusting device B2
located above out of the cabinet B11 to clean the dedusting device B2, such
that it is convenient for
the user to clean the handheld cleaner V, and the cleaning effect of the
handheld cleaner V is
improved. Furthermore, when the user needs to use the handheld cleaner V for
vacuuming, the user
may mount the dedusting device B2 back into the cabinet B11 by
himself/herself, and then cover the
cleaner cover B13 on the top of the cabinet B11, i.e. closing the cabinet B11,
such that the handheld
cleaner V may operate normally.
Alternatively, an edge of the cleaner cover B13 has a first end and a second
end opposite to each
other (for example, when the cleaner cover B13 is circular, the first end and
the second end are located
at two sides of the cleaner cover B13 in a diameter direction thereof), the
first end is articulated with
the cabinet B11, and the second end is connected to the cabinet B11 by a snap
connection. Therefore,
after the snap connection is released, the user may grasp the second end of
the cleaner cover B13 to
lift the cleaner cover B13, thus making it convenient for the user to open the
cleaner cover B13, and
avoiding problems of losing the cleaner cover B13 when the cleaner cover B13
is removed completely
and hardly assembling the cleaner cover B13 back to the cabinet B11 after the
cleaner cover B13 is
removed completely. It should be noted herein that, a snap structure for
connecting the cabinet B11
and the cleaner cover B13 is well known to those skilled in the art, and for
example, it may be a snap
structure for opening a cover of a rice cooker, which thus will not be
elaborated herein. Of course, the
present disclosure is not limited to this, and the cleaner cover B13 may be
designed as a structure
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completely removable from the cabinet B11, which will not be elaborated
herein.
Alternatively, as shown in Figs. 29 and 30, the communicating chamber B105 may
be provided
in the cleaner cover B13, an end surface of the cleaner cover B13, which is
located at a side of the
cleaner cover B13 and faces the upper body B111, has an air inlet
communicating the communicating
chamber B105 with the dedusting chamber B102 and an air outlet B1301
communicating the
communicating chamber B105 with the central chamber B101, and the end surface
of the cleaner
cover B13 is provided with a filter B131 which is detachable and covers the
air inlet. Thus, the airflow
separated from the dedusting chamber B102 may enter the communicating chamber
B105 via passing
through the filter B131 and the air inlet, and then the airflow entering the
communicating chamber
B105 is exhausted into the central chamber B101 via the air outlet B1301.
Thus, by providing the
cleaner cover B13 with the communicating chamber B105 and the filter B131, the
cleaning effect of
the handheld cleaner V may be further improved. Furthermore, since the filter
B131 is disposed at a
position where the user may access the filter B131 directly, and a side
surface of the filter B131 used
for filtration faces outwards, the user may clearly see whether the filter
B131 needs to be cleaned, and
when the filter B131 needs to be cleaned, the user may easily remove the
filter B131 and mount the
filter B131 back after cleaning.
In some embodiments of the present disclosure, referring to Figs. 28, 29 and
30, the dedusting
device B2 may include a cyclone separating member B21 and an end cover B22
disposed on the
cyclone separating member B21, in which the cyclone separating member B21 may
include a
filtration tube B211 and a plurality of cyclones B212. The filtration tube
B211 is disposed in the
dedusting chamber B102 and divides the dedusting chamber B102 into a second
cyclone chamber
B1022 and a first cyclone chamber B1021 located at an inner side and an outer
side of the filtration
tube B211 respectively. When the air exhaust pipe B1112 is provided in the
upper body B111, the
filtration tube B211 is disposed in the dedusting chamber B102 and freely
fitted over the air exhaust
pipe B1112, in which case the second cyclone chamber B1022 is defined between
the filtration tube
B211 and the air exhaust pipe B1112, and the first cyclone chamber B1021 is
defined between the
filtration tube B211 and the tube casing B1111.
Referring to Figs. 25, 29, 30 and 33, the plurality of cyclones B212 each are
disposed in the
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second cyclone chamber B1022, arranged successively along a circumferential
direction of the
filtration tube B211 and located right above the top of the cup casing B122,
or the plurality of
cyclones B212 are disposed around the air exhaust chamber B1011 (or the air
exhaust pipe B1112)
and located right above the dust collecting chamber B103, such that a line of
centers of the plurality of
cyclones B212 is also a non-closed ring line having an opening, and hence it
is ensured that the dust
separated by each cyclone B212 is accurately discharged into the dust
collecting chamber B103, thus
reducing the cost. Alternatively, each cyclone B212 may be fixed to an inner
circumferential wall of
the filtration tube B211, such that the cyclone filter B131 is an integral
member, which is convenient
to assemble, disassemble and process. Preferably, each cyclone B212 may be
configured as a conical
tube having a tapered bottom portion, so as to avoid interfering with the
expansion pipe segment
B11120 of the air exhaust pipe B1112 and improve compactness of the structure.
Referring to Figs. 28,29 and 30, a filtration hole B2110 is provided in a side
wall of the filtration
tube B211, and for example, the filtration tube B211 may include a filtration
tube body B2111 having
a slot and a filtration screen B2112 inserted in the slot. A tangential inlet
B2120 is provided in a side
wall of each cyclone B212. The tube casing B1111 is provided with an air
suction pipe B1113, and a
guiding member is provided at a junction of the air suction pipe B1113 and the
tube casing B1111 and
configured to guide the airflow tangentially into the first cyclone chamber
B1021, such that the
airflow entering the first cyclone chamber B1021 may move circumferentially,
in which case the dust
in the airflow may be thrown out by a centrifugal force while the air
separated from the airflow may
enter the second cyclone chamber B1022 through the filtration hole B2110 in
the filtration tube B211.
The airflow entering the second cyclone chamber B1022 may enter the cyclone
B212 through the
tangential inlet B2120 and move circumferentially in the cyclone B212, in
which case the dust in the
airflow may be thrown out by the centrifugal force and discharged out from a
bottom of the cyclone
B212 while the air separated from the airflow may be exhausted upwards out
from a top of the
cyclone B212, thereby performing the dedusting operation by cyclone
separation. It should be noted
herein that the air described herein is construed in a broad sense, i.e.
including non-pure air containing
fine dust particles.
Alternatively, referring to Figs. 29, 30 and 31, the end cover B22 includes a
cover plate B221
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configured to cover the cyclone separating member B21 and a plurality of air
outlet pipes B222
inserted in the cover plate B221. Respective lower ends of the plurality of
air outlet pipes 8222 extend
into the plurality of cyclones B212 correspondingly while respective upper
ends thereof are right
opposite to a plurality of air inlets in a plurality of cabinets B13, so as to
guide the airflow separated
from the cyclones B212 into the communicating chamber B105. Thus, by providing
the end cover
B22, the air separated from the cyclones B212 may be guided into the
communicating chamber B105
simply, effectively and reliably, and it is ensured that the dedusting device
B2 becomes more modular
and more integral.
Certainly, the present disclosure is not limited to this, and the dedusting
device B2 may be free of
the cyclone separating member B21 and the end cover B22, in which case the
dedusting device B2
may be simply configured as a filter screen. Moreover, the cyclone separating
member B21 may be
free of the filtration tube B211. That is to say, a specific structure of the
dedusting device B2 may be
specifically configured in accordance with actual production requirements.
Referring to Figs. 25-27, 30 and 33, the cup casing B122 is provided with a
chamber-partition
wall B123, the chamber-partition wall B123 is disposed between the inner-ring
wall face B1221 and
the outer-ring wall face B1222 and divides the dust collecting chamber B103
into a first dust
collecting chamber B1031 and a second dust collecting chamber B1032 located at
two sides of the
chamber-partition wall B123 and isolated mutually. That is to say, through an
isolation action of the
chamber-partition wall B123, the first dust collecting chamber B1031 and the
second dust collecting
chamber B1032 are not in communication with each other, such that the dust in
the first dust
collecting chamber B1031 will not flow back into the second dust collecting
chamber B1032, so as to
avoid interfering with a secondary cyclone separation operation described
herein.
Referring to Fig. 27, a top end of the first dust collecting chamber B1031 is
opened as an inlet
thereof, a top end of the second dust collecting chamber B1032 is opened as an
inlet thereof, a bottom
end of the first dust collecting chamber B1031 is opened as an outlet thereof,
and a bottom end of the
second dust collecting chamber B1032 is opened as an outlet B1230 thereof
The first dust collecting chamber B1031 is located right under the first
cyclone chamber B1021
and the inlet of the first dust collecting chamber B1031 is in communication
with the first cyclone
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chamber B1021. The second dust collecting chamber B1032 is located right under
the second cyclone
chamber B1022 and the inlet of the second dust collecting chamber B1032 is in
communication with
the plurality of cyclones B212. Therefore, the dust separated from the first
cyclone chamber B1021
may be accurately discharged downwards into the first dust collecting chamber
B1031, and the dust
separated from the cyclone B212 may be accurately discharged downwards into
the second dust
collecting chamber B1032, thus effectively addressing a problem that the dust
in the dust collecting
chamber B103 flows back into the dedusting chamber B102, so as to improve the
cleaning effect and
efficiency.
Alternatively, a bottom wall of the second dust collecting chamber B1032 is
configured as an
inclined wall with a high center and two low ends, and the two ends of the
inclined wall are opened as
outlets B1230 of the second dust collecting chamber B1032. Therefore, the dust
falling into the
second dust collecting chamber B1032 may slide from top to bottom along the
bottom wall of the
second dust collecting chamber B1032 to the outlets B1230 at two sides of the
bottom of the second
dust collecting chamber B1032, thus effectively preventing the dust from
rising in the second dust
collecting chamber B1032.
Alternatively, the chamber-partition wall B123 includes a vertical wall B1231
and a horizontal
wall B1232. The vertical wall B1231 is vertically disposed between the inner-
ring wall face B1221
and the outer-ring wall face B1222. Referring to Figs. 26 and 27, the vertical
wall B1231 may be an
arc-shaped plate protruding forwards and vertically disposed, and a top end of
the vertical wall B1231
is flush with a top end of the dust collecting chamber B103. The horizontal
wall B1232 is connected
between a bottom end of the vertical wall B1231 and the inner-ring wall face
B1221, and the second
dust collecting chamber B1032 is defined by the horizontal wall B1232, the
vertical wall B1231 and
the inner-ring wall face B1221. Thus, the chamber-partition wall B123 has a
simple structure and is
convenient to process.
Referring to Figs. 24 and 25, the dust cup B12 may further include a cup cover
B124 disposed at
the top of the cup casing B122 and configured to cover the dust collecting
chamber B103. The cup
cover B124 has a dust inlet B1240 in communication with the dust collecting
chamber B103. The dust
inlet B1240 includes a first dust inlet B1241 communicating the first dust
collecting chamber B1031
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with the first cyclone chamber B1021, and second dust inlets B1242
communicating the second dust
collecting chamber B1032 with the plurality of cyclones B212, and a lower end
of each cyclone B212
penetrates through the bottom wall of the tube casing B1111 and is inserted in
the corresponding
second dust inlet B1242 while being fitted therewith. Therefore, the cup cover
B124 is provided to
prevent the dust in the dust collecting chamber B103 from flowing into the
environment on one hand,
and to achieve a function of positioning the cyclone B212 and thus improve
reliability of mounting
the cyclone B212 on the other hand.
For example, in the embodiment shown in Figs. 24 and 25, the cup cover B124
may have a
non-closed annular shape with an opening, so as to be matched with the top of
the dust collecting
chamber B103, in which one first dust inlet B1241 may be provided and located
at an outer-ring side
of the cup cover B124, and six second dust inlets B1242 may be provided and
located at an inner-ring
side of the cup cover B124 and spaced apart from one another in a length
direction of the cup cover
B124. A shape and a size of each second dust inlet B1242 are matched with
those of the lower end of
the corresponding cyclone B212, such that after lower ends of the plurality of
cyclones B212 are
inserted into the second dust inlets B1242, it is possible to prevent the
cyclone separating member
B21 from shaking in the tube casing B1111 and improve operation reliability of
the cyclone separating
member B21.
It should be noted herein that when the dedusting chamber B102 is not divided
into the first
cyclone chamber B1021 and the second cyclone chamber B1022, the dust cup B12
may not be
provided with the chamber-partition wall B123. That is to say, the dust
collecting chamber B103 does
not need to be divided into the first dust collecting chamber B1031 and the
second dust collecting
chamber B1032, in which case the cup cover 8124 only needs to be provided with
the dust inlet
B1240, but not need the first dust inlet B1241 and the second dust inlet
B1242.
Referring to Figs. 24-27, 25 and 30, the base B121 may include a base body
B1211 and a base
bottom cover B1212, and the base bottom cover B1212 is connected to a bottom
of the base body
B1211 and is capable of being opened and closed, so as to define a buffering
chamber B104 between
the base bottom cover B1212 and the base body B1211. A top wall of the base
body B1211 has a
communication hole, and a bottom edge of the outer-ring wall face B1222 is
connected to an edge of
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the communication hole in a butt joint, so as to communicate the first dust
collecting chamber B1031
with the buffering chamber B104. Bottom edges of the inner-ring wall face
B1221 and the
chamber-partition wall B123 are inserted in the communication hole while being
fitted therewith and
abut against the base bottom cover B1212, so as to isolate the second dust
collecting chamber B1032
from the first dust collecting chamber B1031 and the buffering chamber B104.
Therefore, when the base bottom cover B1212 is in a closed position, the
buffering chamber
B104 is defined between the base bottom cover B1212 and the base body B1211,
in which case the
dust in the first dust collecting chamber B1031 may be discharged into the
buffering chamber B104
and accumulated in the buffering chamber B104, while the dust in the second
dust collecting chamber
B1032 may be accumulated at the bottom of the second dust collecting chamber
B1032. When the
base bottom cover B1212 is in an open position, the base bottom cover B1212
may open a bottom of
the buffering chamber B104 and the bottom of the second dust collecting
chamber B1032, such that
the dust in the buffering chamber B104 may be discharged downwards out and the
dust in the second
dust collecting chamber B1032 may be discharged downwards out.
Therefore, referring to Figs. 24 and 25, the base B121 is provided to increase
a total capacity of
the dust cup B12, and the base bottom cover B1212 is configured to be opened
and closed to facilitate
dust pouring of the dust cup B12. Additionally, it can be understood that
there are various ways to
connect the base bottom cover B1212 with the base body B1211 in an openable
manner. For example,
a first end of the base body B1211 may be articulated with a first end of the
base bottom cover B1212,
and a second end of the base body B1211 may be connected with a second end of
the base bottom
cover B1212 by snap connection, such that when the snap connection is
released, the second end of
the base body B1211 may be flipped down by gravity to effect an opening
action.
The handle assembly VC according to the embodiment of the present disclosure
will be
described below.
Referring to Figs. 22 and 30, the power supply device C2 is disposed to an
inner top of the
handle casing Cl or an outer top of the handle casing Cl. For example, the
power supply device C2
may a battery assembly embedded in the handle casing Cl, or the power supply
device C2 may also
be a battery pack detachable from the handle casing Cl. Thus, by disposing the
power supply device
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C2 to the top of the handle casing Cl, the gravity center of the entire
handheld cleaner V is optimized,
and hence the user may hold the handheld cleaner V more effortlessly.
Optionally, referring to Figs. 22 and 30, the handle casing Cl includes an
holding portion C11, an
upper arm portion C12 and a lower arm portion C13, in which the holding
portion C 11 is vertically
disposed and is spaced apart from the cabinet B11, the upper arm portion C12
is connected between
an upper end of the holding portion C11 and the cabinet B11, and the lower arm
portion C13 is
connected between a lower end of the holding portion C11 and the cabinet B11.
The power supply
device C2 is provided to an inner top or an outer top of the upper arm portion
C12, so as to ensure that
the power supply device C2 is located at the top of the handle casing Cl.
Thus, by providing the upper
arm portion C12 and the lower arm portion C13, the holding portion C11 may be
reliably mounted to
the cabinet B11, and furthermore, by providing the holding portion C11, the
user may firmly grasp the
handle assembly VC. Of course, the present disclosure is not limited to thus,
in other embodiments of
the present disclosure, the handle casing Cl may also have other shapes, and
for example, the handle
casing Cl may not include the lower arm portion C13 etc., which will not be
described herein.
Preferably, referring to Figs. 22 and 30, the upper end of the holding portion
C11 is connected to
a center of a bottom of the upper arm portion C12, and the lower end of the
holding portion C11
extends in a direction running away from the cabinet B11. That is to say, the
holding portion C11
obliquely extends in the direction running away from the cabinet B1 1 from top
to bottom, such that
the user may hold the holding portion C11 more effortlessly, and the user may
adjust an operation
angle of the handheld cleaner V more easily. In addition, the upper end of the
holding portion C11 is
connected to the center of the bottom of the upper arm portion C12, such that
reliability of supporting
the holding portion C 11 may be improved, and a force applied on the holding
portion C11 may be
reduced. Optionally, the lower arm portion C13 obliquely extends upwards in a
direction from the
cabinet B11 to the holding portion C11, such that a grasping space for the
user is increased, and hence
the user may grasp the holding portion C11 conveniently.
In an alternative example of the present disclosure, referring to Figs. 22 and
30, the upper arm
portion C12 is configured as a rectangle shell B1 disposed horizontally, and
the power supply device
C2 is provided in the upper arm portion C12. Therefore, the upper arm portion
C12 has a simple
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structure and is easy to process, and it is convenient to mount the power
supply device C2. Moreover,
the reliability of mounting the power supply device C2 may be enhanced. In
another alternative
example (not shown in the drawings) of the present disclosure, the cabinet B11
has an electrical
connection port, and the power supply device C2 is disposed to the outer top
of the upper arm portion
C12 and is electrically plugged in the electrical connection port, such that
the power supply device C2
may be easily removed to be charged.
Preferably, at least part of the upper arm portion C12, at least part of the
lower arm portion C13
and the cabinet B11 are integrally molded, that is to say, at least part of
the upper arm portion C12, at
least part of the lower arm portion C13 and the cabinet B11 may be configured
as an integral part
through one injection molding, such that reliability of connecting the handle
casing Cl with the
cabinet Bll may be enhanced effectively. Preferably, at least part of the
holding portion C11, at least
part of the upper arm portion C12 and at least part of the lower arm portion
C13 may be integrally
molded, that is to say, at least part of the holding portion C11, at least
part of the upper arm portion
C12 and at least part of the lower arm portion C13 may be an integral part
through one injection
molding, such that structural reliability of the handle casing Cl may be
improved effectively.
For example, the holding portion C11 may include an inner holding casing and
an outer holding
casing, the upper arm portion C12 may include an upper-arm upper casing and an
upper-arm lower
casing, and the lower arm portion C13 may include a lower-arm lower casing and
a lower-arm upper
casing. The inner holding casing, the upper-arm lower casing, the lower-arm
upper casing and the
cabinet B11 are integrally molded, the outer holding casing may be detachably
mounted to an outer
side of the inner holding casing, the upper-arm upper casing may be detachably
mounted to a top of
the upper-arm lower casing, and the lower-arm lower casing may be detachably
mounted to a bottom
of the lower-arm upper casing.
Preferably, referring to Fig. 22, an outer surface of the casing B1 has a
cylindrical shape, the
upper arm portion C12 is connected to a top end of a circumferential surface
of the casing B1, and the
lower arm portion C13 is connected to a bottom end of the circumferential
surface of the casing Bl.
Thus, an overall size of the handle assembly VC may be increased to optimize
the gravity center of
the entire handheld cleaner V effectively, and thus the user can hold the
handheld cleaner V more
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effortlessly.
Preferably, referring to Fig. 22, the outer surface of the casing B1 has the
cylindrical shape, a
center line of the holding portion C11 (i.e. a center line of the holding
portion C11 extending in a
length direction thereof), a center line of the upper arm portion C12 (i.e. a
center line of the upper arm
portion C12 extending in a length direction thereof), a center line of the
lower arm portion C13 (i.e. a
center line of the lower arm portion C13 extending in a length direction
thereof), and an axis of the
casing B1 are located in the same plane. Thus, the gravity center of the
entire handheld cleaner V is
optimized more effectively, and the user may hold the handheld cleaner V more
effortlessly.
In the following, referring to Fig. 30, in combination with Figs. 22-33, a
working principle
of the handheld cleaner V according to the embodiment of the present
disclosure will be
described in brief.
When the negative pressure device B3 (e.g. including a motor and a fan)
starts, negative pressure
is produced in the mounting chamber B1012, and hence negative pressure is also
produced in the air
exhaust chamber B1011, the communicating chamber B105, the dedusting chamber
B102 and the air
suction pipe B1113 which are in communication with the mounting chamber B1012.
In such a case,
the handheld cleaner V may suck the dusty air from the external environment
into the dedusting
chamber B102 through the air suction pipe B1113, and the dusty air enters the
first cyclone chamber
B1021 tangentially to undergo the cyclone separation. The dust separated by
the cyclone separation in
the first cyclone chamber B1021 falls down, enters the first dust collecting
chamber B1031 via the
first dust inlet B1241 in the cup cover B124, and is further discharged into
the buffering chamber
B104, while the airflow separated by the cyclone separation in the first
cyclone chamber B1021 enters
the second cyclone chamber B1022 through the filtration hole B2110 in the
filtration tube B211,
enters the plurality of cyclones B212 through the tangential inlet B2120 in
the side wall of each
cyclone B212 to undergo the cyclone separation. The dust separated by the
cyclone separation in the
plurality of cyclones B212 falls down, enters the second dust collecting
chamber B1032 via the
second dust inlets B1242 in the cup cover B124, while the airflow separated by
the cyclone separation
in the plurality of cyclones B212 flows upwards, passes through the plurality
of air outlet pipes B222
of the end cover B22, and further through the filter B131 and the air inlet of
the cleaner cover B13,
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and enters the communicating chamber B105. Subsequently, the airflow in the
communicating
chamber B105 is exhausted into the air exhaust chamber B1011 through the air
outlet B1301 in the
cleaner cover B13, further passes through the negative pressure device B3 and
the isolating screen B5
at a rear side of the negative pressure device 83, and then is exhausted to
the air-exhaust filtration
device B4. The airflow is further exhausted out of the bottom of the air
exhaust space B106 to the
external environment of the handheld cleaner V, after final filtration by the
air-exhaust filtration
device B4.
In the following, beneficial effects in some aspects of the handheld cleaner V
according to
the embodiment of the present disclosure will be described in brief.
1. For the handheld cleaner in the related art, the power supply device and
the negative pressure
device are both provided in the handle, and the power supply device is
generally disposed at the
bottom of the handle, such that the handle has large volume and weight, and
thus it is not only
inconvenient for the user to hold the handle, but also troublesome and
uncomfortable for handholding.
However, for the handheld cleaner V according to the embodiment of the present
disclosure, the
power supply device C2 is disposed to the top of handle casing Cl, and the
negative pressure device
B3 is disposed in the dust cup B12, so as to improve distribution of the
gravity center of the handheld
cleaner V effectively, enhance the comfort of holding the handheld cleaner V
by the user, and enable
the user to use the handheld cleaner V more effortlessly and easily, thereby
improving the user
experience.
2. For the handheld cleaner in the related art, since the dedusting device is
fixed inside the
cleaner body, the user cannot remove the dedusting device by himself/herself
to clean the dedusting
device, such that the dust remaining in the dedusting device tends to cause
bacteria growth, result in
odor, and further lead to secondary pollution for the next use, thus reducing
the overall cleaning effect.
However, for the handheld cleaner V according to the embodiment of the present
disclosure,
since the cleaner cover B13 may be conveniently opened, and the dedusting
device B2 may be taken
out of the cabinet B11, the user may clean the dedusting device B2
conveniently, which prevents the
dust from remaining in the cabinet B11, avoids problems of bacteria growth and
odor generation, and
improves the overall cleaning effect of the handheld cleaner V.
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3. For the handheld cleaner in the related art, the negative pressure device
is typically disposed in
the handle, so the handle has the large volume and weight, and thus it is not
only inconvenient for the
user to hold the handle, but also troublesome and uncomfortable for
handholding. In addition, for
some other handheld cleaners in the related art, the negative pressure device
is disposed in the cup
casing but surrounded by the dust collecting chamber entirely, such that the
negative pressure device
is difficult to assemble or disassemble and is not convenient to maintain or
repair.
However, for the handheld cleaner V according to the embodiment of the present
disclosure, by
disposing the negative pressure device B3 in the dust cup B12, the
distribution of the gravity center of
the handheld cleaner V is improved effectively, and the comfort of holding the
handheld cleaner V by
the user is enhanced. Moreover, since the cup casing B122 of the dust cup B12
is configured to have
an annular-column shape with a side opening, the negative pressure device B3
may be assembled or
disassembled from the side opening conveniently, thus facilitating the
assembling, disassembling,
maintenance and replacement of the negative pressure device B3. Additionally,
since the dedusting
device B2 is located in the dedusting chamber B102 outside the dust collecting
chamber B103, the
dust cup B12 and the dedusting device B2 are relatively independent, the dust
in the dust collecting
chamber B103 will not be raised or flow back to the dedusting chamber B102
easily, so as to improve
the dedusting effect, reduce suction resistance, and lower energy consumption.
4. For the handheld cleaner V according to the embodiment of the present
disclosure, the
dedusting device B2 and the negative pressure device B3 are both disposed in
the cabinet B11, and the
dedusting device B2 is arranged at an upper side of the negative pressure
device B3. Also, the dust
cup B12 is disposed outside the cabinet B11, and the cup casing B122 of the
dust cup B12 surrounds
the negative pressure device B3 by less than one circle. Thus, the overall
structure layout of the
handheld cleaner V is optimized and the user experience is improved.
5. For the handheld cleaner V according to the embodiment of the present
disclosure, the
dedusting device B2 and the negative pressure device B3 are both disposed in
the cabinet B11, and the
dedusting device B2 is arranged at the upper side of the negative pressure
device B3. Also, the dust
cup B12 is disposed outside the cabinet B11, and the cup casing B122 of the
dust cup B12 surrounds
the negative pressure device B3 by less than one circle. Moreover, the power
supply device C2 is
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disposed at the top of the handle casing Cl. Thus, the overall structure
layout of the handheld cleaner
V is further optimized and the user experience is further improved.
6. For the handheld cleaner V according to the embodiment of the present
disclosure, since the
upper end of the negative pressure device B3 may utilize the expansion space
among the bottoms of
the plurality of cyclones B212, the space utilization rate and the structural
compactness of the dust cup
assembly VB are improved, an internal space of the casing B1 is saved, an
effective volume of the
dust cup B12 is increased, and an overall size of the handheld cleaner V is
decreased, thus making the
entire handheld cleaner V lightweight and enhancing the user experience.
In the specification, it is to be understood that terms such as "central,"
"longitudinal," "lateral,"
"length," "width," "thickness," "upper," "lower," "front," "rear," "left,"
"right," "vertical,"
"horizontal," "top," "bottom," "inner," "outer," "clockwise,"
"counterclockwise," "axial," "radial"
and "circumferential" should be construed to refer to the orientation as then
described or as shown in
the drawings under discussion. These relative terms are for convenience of
description and do not
require that the present disclosure be constructed or operated in a particular
orientation.
In addition, terms such as "first" and "second" are used herein for purposes
of description and are
not intended to indicate or imply relative importance or significance or to
imply the number of
indicated technical features. Thus, the feature defined with "first" and
"second" may comprise one or
more of this feature. In the description of the present disclosure, "a
plurality of' means two or more
than two, unless specified otherwise.
In the present disclosure, unless specified or limited otherwise, the terms
"mounted,"
"connected," "coupled," "fixed" and the like are used broadly, and may be, for
example, fixed
connections, detachable connections, or integral connections; may also be
direct connections or
indirect connections via intervening structures; may also be inner
communications of two elements or
interaction of two elements, which can be understood by those skilled in the
art according to specific
situations. In the present disclosure, unless specified or limited otherwise,
a structure in which a first
feature is "on" or "below" a second feature may include an embodiment in which
the first feature is in
direct contact with the second feature, and may also include an embodiment in
which the first feature
and the second feature are not in direct contact with each other, but are
contacted via an additional
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feature formed therebetween. Furthermore, a first feature "on," "above," or
"on top of" a second
feature may include an embodiment in which the first feature is right or
obliquely "on," "above," or
"on top of" the second feature, or just means that the first feature is at a
height higher than that of the
second feature; while a first feature "below," "under," or "on bottom of' a
second feature may include
an embodiment in which the first feature is right or obliquely "below,"
"under," or "on bottom of' the
second feature, or just means that the first feature is at a height lower than
that of the second feature.
Reference throughout this specification to "an embodiment," "some
embodiments," "an
example," "a specific example," or "some examples," means that a particular
feature, structure,
material, or characteristic described in connection with the embodiment or
example is included in at
least one embodiment or example of the present disclosure. Thus, the
appearances of the phrases in
various places throughout this specification are not necessarily referring to
the same embodiment or
example of the present disclosure. Furthermore, the particular features,
structures, materials, or
characteristics may be combined in any suitable manner in one or more
embodiments or examples. In
addition, those skilled in the art can integrate and combine different
embodiments or examples, and
the features in different embodiments or examples without contradiction.
Although embodiments of the present disclosure have been shown and
illustrated, it shall be
understood by those skilled in the art that various changes, modifications,
alternatives and variants
without departing from the principle and spirit of the present disclosure are
acceptable. The scope of
the present disclosure is defined by the claims or the like.
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