Note: Descriptions are shown in the official language in which they were submitted.
HEATING ASSEMBLY AND VAPING DEVICE COMPRISING THE SAME
BACKGROUND
[0001] The disclosure relates to a heating assembly and a vaping device
comprising
the same.
[0002] Conventionally, a heating assembly is disposed in the tobacco material.
When
the heating assembly is energized, the tobacco material is unevenly heated,
which
may affect the taste of the tobacco smoke.
SUMMARY
[0003] To solve the aforesaid problems, the first objective of the disclosure
is to
provide a heating assembly for heating tobacco material.
[0004] The second objective of the disclosure is to provide a vaping device
comprising the heating assembly.
[0005] The following advantages are associated with the heating assembly and
the
vaping device of the disclosure: the heating assembly allows the hot air to
pass
through the tobacco material and enables uniform heat transfer. Heating
components
are evenly disposed on a bottom wall of a base to give the maximum heating
area
which allows the heat to be conducted rapidly through the bottom wall of the
base.
Then the heat is transferred rapidly to the tobacco material to maintain the
taste of the
tobacco smoke.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] FIG. 1 is a cross-sectional view of a vaping device according to one
example
of the disclosure;
[0007] FIG. 2 is an exploded view of a heating assembly according to one
example
of the disclosure;
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Date Recue/Date Received 2022-05-10
[0008] FIG. 3 is a perspective view of a heating assembly according to one
example
of the disclosure;
[0009] FIG. 4 is a cross-sectional view of a heating assembly according to one
example of the disclosure;
[0010] FIG. 5 is a bottom perspective view of a heating assembly according to
one
example of the disclosure;
[0011] FIG. 6 is a perspective view of a base assembled with a heating element
according to one example of the disclosure;
[0012] FIG. 7 is atop view of a base according to one example of the
disclosure; and
[0013] FIG. 8 is a cross-sectional view including arrows showing the direction
of air
flow in a heating element according to one example of the disclosure.
[0014] In the drawings, the following reference numbers are used: 1. Tobacco
chamber; 2. Heating assembly; 3. Control assembly; 24. Cover; 25. Heating
element;
26. Base; 260. Partition; 2401. Air inlet; 2604. Air outlet; 2601. Separate
space; 2603.
Side wall; 2605. Space; 2606. Opening; 2607. Main partition; 2609. Bottom
wall;
2610. Flange; 2611. Protruding part; 2607a. First main partition; 2607b.
Second main
partition; 2607c. Third main partition; 2608a. First auxiliary partition; and
2608a.
Second auxiliary partition.
DETAILED DESCRIPTION
[0015] To further illustrate the disclosure, embodiments detailing a heating
assembly
and a vaping device are described below. It should be noted that the following
embodiments are intended to describe and not to limit the disclosure.
[0016] As shown in FIG. 1, a vaping device comprises a tobacco chamber 1 for
holding tobacco material, a heating assembly 2 for heating the tobacco
material, and a
control assembly 3 for regulating the operation of the heating assembly 2. The
control
assembly 3 is disposed on the heating assembly 2, and the heating assembly 2
is
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Date Recue/Date Received 2022-05-10
disposed on the tobacco chamber 1. The control assembly comprises a circuit
control
board, and optionally further comprises a battery.
[0017] As shown in FIGS. 2-6, the heating assembly 2 comprises a heating
element
25 and a base 26. The base 26 comprises a bottom wall 2609 and a side wall
2603. A
space 2605 is surrounded by the bottom wall 2609 and the side wall 2603. The
heating element 25 is distributed on the bottom wall 2609 and configured to
heat air in
the space 2605. The bottom wall 2609 comprises at least one air outlet 2604
through
which the heat flows out of the space 2605. The tobacco chamber 1 comprises an
open top through which the tobacco material is inserted into the tobacco
chamber 1.
The bottom wall 2609 is disposed on the tobacco chamber 1 to cover the open
top.
The focused stream of hot air in the space 2605 flows down through the at
least one
air outlet 2604 into the tobacco chamber 1, thus warming up evenly throughout
the
tobacco material. The heating element 25 is distributed on the bottom wall
2609 so as
to quickly transfer heat to the bottom wall 2609 and raise the temperature in
the
tobacco material, thus maintaining the taste of the tobacco smoke. The heating
element 25 comprises conductive materials including but not limited to,
conductive
metals, graphene, and carbon nanomaterials. The heating element is energized
to
produce the heat; optionally, an electromagnetic field is produced in a coil
and causes
heat generation in the heating element 25.
[0018] In certain examples, the bottom wall 2609 comprises a plurality of
partitions
260 dividing the space 2605 into a plurality of separate spaces 2601. The
heating
element 25 is disposed in the plurality of separate spaces 2601. The plurality
of
partitions 260 is erected on the bottom wall 2609 using any desired method,
such as
integral formation or assembly. The plurality of partitions 260 is configured
to prevent
changes in the position of the heating element 25, thus preventing short
circuit. The
plurality of partitions 260 is configured to reduce heat loss in the plurality
of separate
spaces 2601.
[0019] In certain examples, the plurality of separate spaces 2601 communicates
with
one another to form a passage; two ends of the heating element 25 extend in
the
passage so that the heating element stretches in each separate space. In
certain
examples, the vaping device comprises only one heating element 25 provided
with
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Date Recue/Date Received 2022-05-10
two pins; the heating element 25 extends along the passage to have a maximum
length, and is soldered to the two pins for electricity conducting. The
maximum length
of the heating element 25 causes a rise in voltage and maximizes the amount of
heat
produced. In certain examples, the plurality of separate spaces 2601 need not
communicate with one another; a plurality of heating elements 25 is inserted
through
plurality of partitions 260 and disposed on the bottom wall 2609; the
plurality of
partitions 260 is formed integrally with or connected to one another.
[0020] In certain examples, as shown in FIG. 6, the plurality of partitions
260
comprises a plurality of main partitions 2607 with different sizes. The
separate space
2601 is formed between every two adjacent main partitions 2607. Each of the
plurality of main partitions 2607 is in the shape of a ring with an opening
2606. A
smaller main partition 2607 is disposed in an adjacent larger main partition,
and the
openings of the smaller main partition 2607 and the adjacent larger main
partition
2607 are disposed in two opposite directions. Understandably, the plurality of
main
partitions 2607 can be any shape or form including a circular shape, an
elliptical
shape, and a polygonal shape (for examples, a rectangular shape, a triangular
shape,
and a diamond shape). Referring to FIG. 2, in certain examples, the plurality
of main
partitions 2607 comprises a first main partition 2607a, a second main
partition 2607b,
and a third main partition 2607c, which are disposed in turn outward from the
same
center point; the first main partition 2607a comprises a first opening; the
second main
partition 2607b comprises a second opening; and the third main partition 2607c
comprises a third opening; the first main partition 2607 is surrounded by the
second
main partition 2607b, and the first opening and the second opening are
disposed in
two opposite directions; the second main partition 2607b is surrounded by the
third
main partition 2607c, and the second opening and the third opening are
disposed in
two opposite directions; the first opening and the third opening are disposed
in the
same direction. In certain examples, each of the plurality of main partitions
2607 is in
the form of a sheet with a flat surface (as shown in FIG. 7), and need not
comprises
any opening 2606. In certain examples, the plurality of main partitions 2607
is spirally
disposed on the bottom wall 2609 and need not comprise any opening 2606; and
the
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Date Recue/Date Received 2022-05-10
heating element 25 is matched with the plurality of separate spaces 2601 in
shape and
size to ensure that it can be disposed therein.
[0021] In certain examples, each of the plurality of partitions 260 further
comprises
a joint and an auxiliary partition 2608; the joint is disposed opposite to the
opening;
and the auxiliary partition extends from the joint through the opening of
adjacent
larger main partition. In certain examples, the plurality of main partitions
2607
comprises a first main partition 2607a, a second main partition 2607b, and a
third
main partition 2607c, which are disposed in turn outward from the same center
point;
the first main partition 2607a comprises a first opening and a first joint
disposed
opposite to the first opening; the second main partition 2607b comprises a
second
opening and a second joint disposed opposite to the second opening; and the
third
main partition 2607c comprises a third opening and a third joint disposed
opposite to
the third opening; the first main partition 2607 is surrounded by the second
main
partition 2607b, and the first opening and the second opening are disposed in
two
opposite directions; the second main partition 2607b is surrounded by the
third main
partition 2607c, and the second opening and the third opening are disposed in
two
opposite directions; the first auxiliary partition 2608a extends from the
first joint to
the third joint through the second opening; the second auxiliary partition
2608b
extends from the second joint to the side wall 2603 through the second
opening. The
plurality of auxiliary partitions 2608 is configured to prevent short circuit
caused by
the heating element 25.
[0022] In certain examples, the base 26 comprises a plurality of air outlets
2604
evenly distributed on the bottom wall 2609; preferably, the plurality of air
outlets
2604 is evenly distributed, thus allowing the hot air to pass through the
tobacco
material and enabling uniform heat transfer.
[0023] In certain examples, the base 26 further comprises at least one
protruding part
2611 disposed on the outer surface of the bottom wall 2609; and a gap is
formed
between the at least one protruding part 2611 and the tobacco material. Since
the
tobacco material may bum and stick to the surface of the heating element 25,
the gap
reduces contact between the tobacco material and the heating element 25, which
leads
to an increased service life of the heating element 25.
Date Recue/Date Received 2022-05-10
[0024] In certain examples, the side wall 2603 comprises a distal end away
from the
bottom wall 2609; the distal end extends radially to form a flange 2610; the
flange
2610 is disposed on the open top of the tobacco chamber to prevent the base 26
from
moving.
[0025] In certain examples, the heating assembly further comprises a cover 24
disposed on the distal end of the side wall 2603 to cover the space 2605. The
cover 24
comprises at least one air inlet 2401 through which the air is conducted into
the space
2605. The projection of the at least one air inlet 2401 does not overlap with
the at
least one air outlet 2604. The at least one air inlet 2401 communicates with
the at least
one air outlet 2604 through the space 2605. The number of the at least one air
inlet
2401 is determined by demand. Since the projection of the at least one air
inlet 2401
does not overlap with the at least one air outlet 2604, a vortex is formed as
a result of
the heat flow, which allows the hot air to flow along the space 2605, reduces
heat loss,
and improves heat utilization. Optionally, the cover 25 is disposed on the
flange 2610.
[0026] In certain examples, the cover 24 is made of a thermal insulating
material
including not limited to mica, agate, jade, and crystal. Preferably, the
thermal
insulating material is made of mica which helps to minimize heat loss. The
base 26
and the plurality of partitions 260 are separately made of a thermally-
conductive
electrically-insulating material including but not limited to, ceramic, glass,
and quartz.
Preferably, the base 26 and the plurality of partitions 260 are separately
made of
ceramic.
[0027] In certain examples, the heating element 25 comprises a heating wire
and/or a
heating tube in a spiral shape that maximizes the heating area. Preferably,
the heating
wire is in the shape of a spiral which gives the maximum length, offering
advantages
such as low electrical resistivity, high heat generation, and low power
consumption.
The heat is transferred rapidly to the tobacco material to make an improvement
on the
tobacco smoke.
[0028] In certain examples, the tobacco chamber 1 comprises the open top; the
heating assembly 2 is disposed on the open top; the bottom wall 2609 covers
the open
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Date Recue/Date Received 2022-05-10
top, and the at least one air outlet is oriented toward the tobacco material;
almost all
the heat flows to the tobacco material to achieve a good heating efficiency.
[0029] FIG. 8 is a cross-sectional view including arrows showing the direction
of the
heat flow in the vaping device of the disclosure. The heating element 25 is
energized
to produce the heat, and allows the heat to be conducted through the plurality
of
separate spaces 2601. External air flows through the at least one air inlet
2401 into the
plurality of separate spaces 2601, and forces the heat through the at least
one air outlet
2604 to heat the tobacco material.
[0030] It will be obvious to those skilled in the art that changes and
modifications
may be made, and therefore, the aim in the appended claims is to cover all
such
changes and modifications.
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Date Recue/Date Received 2022-05-10
