Note: Descriptions are shown in the official language in which they were submitted.
Description
Title of Invention: AEROSOL GENERATING DEVICE AND
OPERATING METHOD THEREOF
Technical Field
[1] The present disclosure relates to an aerosol generating device and an
operating
method thereof. Specifically, the present disclosure relates to an aerosol
generating
device that may distinguish between a normal cigarette and an excessively
moist
cigarette on the basis of a rate of temperature increase and provide a
temperature
profile corresponding to a state of the cigarette, and an operating method of
the aerosol
generating device.
Background Art
[2] Recently, the demand for a smoking method to replace normal cigarettes
is in-
creasing. For example, there is increasing demand for a method of generating
an
aerosol as an aerosol generating material in a cigarette is heated, rather
than a method
of generating an aerosol by burning a cigarette. Accordingly, research on
heating-type
cigarettes and heating-type aerosol generating devices is actively being
conducted.
[3] In addition, moisture has a higher specific heat than air, and has a
higher heat
capacity than air at the same temperature. Due to this, there may be a problem
in that a
user feels more heat when a user inhales an aerosol with a high moisture
content, than
when the user inhales air of the same temperature.
Disclosure of Invention
Technical Problem
[4] The present disclosure provides an aerosol generating device that may
distinguish
between a normal cigarette and an excessively moist cigarette and an operating
method
of the aerosol generating device.
[5] The present disclosure provides an aerosol generating device including
a temperature
profile corresponding to each of the normal cigarette and the excessively
moist
cigarette, and an operating method of the aerosol generating device.
[6] The present disclosure provides an aerosol generating device including
a temperature
profile corresponding to a continuous use and an operating method of the
aerosol
generating device.
[7] Objects to be achieved by embodiments are not limited to the objects
described
above, and objects not described may be clearly understood by those skilled in
the art
to which the embodiments belong from the present disclosure and the
accompanying
drawings.
Solution to Problem
CA 03220667 2023- 11- 28
2
1181 An aerosol generating device according an embodiment
includes a heater configured
to heat a cigarette, a temperature sensor configured to measure a temperature
of the
heater, and a controller configured to determine a humidity state of the
cigarette by cal-
culating a temperature increase time of the cigarette by using the temperature
sensor
and comparing the calculated temperature increase time of the cigarette with a
preset
threshold. The controller supplies power to the heater according to a basic
temperature
profile when the temperature increase time is less than the threshold, and
supplies
power to the heater according to a first correction profile when the
temperature
increase time is greater than or equal to the threshold.
[91 An operating method of an aerosol generating device,
according an embodiment,
includes a step of heating a cigarette by using a heater, a step of measuring
temperature
of the heater by using a temperature sensor, a step of calculating a
temperature increase
time of the cigarette by using the temperature sensor and comparing the
calculated
temperature increase time of the cigarette with a preset threshold to
determine a
humidity state of the cigarette, and a step of operating the heater with a
temperature
profile corresponding to the determined cigarette. In the step of determining
the
humidity state of the cigarette, when the temperature increase time is less
than the
threshold, the cigarette is determined as a normal cigarette, and when the
temperature
increase time is greater than or equal to the threshold, the cigarette is
determined as an
excessively moist cigarette, and in the step of operating the heater, when the
tem-
perature increase time is less than the threshold, power is supplied to the
heater
according to a basic temperature profile, and when the temperature increase
time is
greater than or equal to the threshold, the power is supplied to the heater
according to a
first correction profile.
Advantageous Effects of Invention
[10] An aerosol generating device and an operating method thereof according
to various
embodiments of the present disclosure may distinguish between a normal
cigarette and
an excessively moist cigarette on the basis of a temperature increase time of
a cigarette.
[11] In addition, an aerosol generating device and an operating method
thereof according
to various embodiments of the present disclosure may provide a temperature
profiles
corresponding to each of a normal cigarette and an excessively moist
cigarette.
[12] In addition, an aerosol generating device and an operating method
thereof according
to various embodiments of the present disclosure may provide a temperature
profile
corresponding to a continuous use.
[13] Effects of embodiments are not limited to the effects described above,
and effects not
described will be clearly understood by those skilled in the art to which the
em-
bodiments belong from the present disclosure and the accompanying drawings.
CA 03220667 2023- 11- 28
3
Brief Description of Drawings
[14] FIGS. 1 to 3 are views illustrating examples in which a cigarette is
inserted into an
aerosol generating device.
[15] FIGS. 4 and 5 are views illustrating examples of cigarettes.
[16] FIG. 6 is a block diagram of an aerosol generating device according to
another em-
bodiment.
[17] FIG. 7A is a perspective view illustrating an appearance of an aerosol
generating
device according to an embodiment of the present disclosure.
[18] FIG. 7B is a perspective view illustrating an operating state in which
some
components are separated from the aerosol generating device according to the
em-
bodiment illustrated in FIG. 7A.
[19] FIG. 8 is an example diagram illustrating a basic temperature profile
of an aerosol
generating device.
[20] FIG. 9A is an example diagram illustrating a first correction profile
of an aerosol
generating device.
[21] FIG. 9B is an example diagram illustrating a second correction profile
of an aerosol
generating device.
[22] FIG. 10A is a flowchart illustrating an operating method of an aerosol
generating
device, according to an embodiment considering a humidity state of a
cigarette.
[23] FIG. 10B is a flowchart illustrating an operating method of an aerosol
generating
device, according to another embodiment considering a humidity state of a
cigarette.
[24] FIG. 11 is a flowchart illustrating an operating method of an aerosol
generating
device for determining whether a cigarette is continuously used.
Mode for the Invention
[251 Regarding the terms in the various embodiments, the
general terms which are
currently and widely used are selected in consideration of functions of
structural
elements in the various embodiments of the present disclosure. However,
meanings of
the terms can be changed according to intention, a judicial precedence, the
appearance
of a new technology, and the like. In addition, in certain cases, terms which
can be ar-
bitrarily selected by the applicant in particular cases. In such a case, the
meaning of the
terms will be described in detail at the corresponding portion in the
description of the
present disclosure. Therefore, the terms used in the various embodiments of
the present
disclosure should be defined based on the meanings of the terms and the
descriptions
provided herein.
[26] In addition, unless explicitly described to the contrary,
the word "comprise" and
variations such as "comprises" or "comprising" will be understood to imply the
inclusion of stated elements but not the exclusion of any other elements. In
addition,
CA 03220667 2023- 11- 28
4
the terms "-er", "-or", and "module" described in the specification mean units
for
processing at least one function and operation and can be implemented by
hardware
components or software components and combinations thereof.
[27] Hereinafter, embodiments of the present disclosure will be described
in detail with
reference to the accompanying drawings such that those skilled in the art to
which the
present disclosure belongs may easily implement the present disclosure.
However, the
present disclosure may be implemented in many different forms and is not
limited to
the embodiments described herein.
[28] Hereinafter, embodiments of the present disclosure will be described
in detail with
reference to the drawings.
[29] FIGS. 1 through 3 are diagrams showing examples in which a cigarette
is inserted
into an aerosol generating device.
[30] Referring to FIG. 1, the aerosol generating device 1 may include a
battery 11, a
controller 12, and a heater 13. Referring to FIGS. 2 and 3, the aerosol
generating
device 1 may further include a vaporizer 14. Also, the cigarette 2 may be
inserted into
an inner space of the aerosol generating device 1.
[31] FIGS. 1 through 3 illustrate components of the aerosol generating
device 1, which
are related to the present embodiment. Therefore, it will be understood by one
of
ordinary skill in the art related to the present embodiment that other general-
purpose
components may be further included in the aerosol generating device 1, in
addition to
the components illustrated in FIGS. 1 through 3.
[32] Also, FIGS. 2 and 3 illustrate that the aerosol generating device 1
includes the heater
13. However, as necessary, the heater 13 may be omitted.
[33] FIG. 1 illustrates that the battery 11, the controller 12, and the
heater 13 are arranged
in series. Also, FIG. 2 illustrates that the battery 11, the controller 12,
the vaporizer 14,
and the heater 13 are arranged in series. Also, FIG. 3 illustrates that the
vaporizer 14
and the heater 13 are arranged in parallel. However, the internal structure of
the aerosol
generating device 1 is not limited to the structures illustrated in FIGS. 1
through 3. In
other words, according to the design of the aerosol generating device 1, the
battery 11,
the controller 12, the heater 13, and the vaporizer 14 may be differently
arranged.
[34] When the cigarette 2 is inserted into the aerosol generating device 1,
the aerosol
generating device 1 may operate the heater 13 and/or the vaporizer 14 to
generate
aerosol from the cigarette 2 and/or the vaporizer 14. The aerosol generated by
the
heater 13 and/or the vaporizer 14 is delivered to a user by passing through
the cigarette
2.
[35] As necessary, even when the cigarette 2 is not inserted into the
aerosol generating
device 1, the aerosol generating device 1 may heat the heater 13.
[36] The battery 11 may supply power to be used for the aerosol generating
device 1 to
CA 03220667 2023- 11- 28
5
operate. For example, the battery 11 may supply power to heat the heater 13 or
the
vaporizer 14, and may supply power for operating the controller 12. Also, the
battery
11 may supply power for operations of a display, a sensor, a motor, etc.
mounted in the
aerosol generating device 1.
[37] The controller 12 may generally control operations of the aerosol
generating device
1. In detail, the controller 12 may control not only operations of the battery
11, the
heater 13, and the vaporizer 14, but also operations of other components
included in
the aerosol generating device 1. Also, the controller 12 may check a state of
each of the
components of the aerosol generating device 1 to determine whether or not the
aerosol
generating device 1 is able to operate.
[38] The controller 12 may include at least one processor. A processor can
he im-
plemented as an array of a plurality of logic gates or can be implemented as a
com-
bination of a general-purpose microprocessor and a memory in which a program
ex-
ecutable in the microprocessor is stored. It will be understood by one of
ordinary skill
in the art that the processor can be implemented in other forms of hardware.
[39] The heater 13 may be heated by the power supplied from the battery 11.
For
example, when the cigarette is inserted into the aerosol generating device 1,
the heater
13 may be located outside the cigarette. Thus, the heated heater 13 may
increase a tem-
perature of an aerosol generating material in the cigarette.
[40] The heater 13 may include an electro-resistive heater. For example,
the heater 13
may include an electrically conductive track, and the heater 13 may be heated
when
currents flow through the electrically conductive track. However, the heater
13 is not
limited to the example described above and may include all heaters which may
be
heated to a desired temperature. Here, the desired temperature may be pre-set
in the
aerosol generating device 1 or may be set as a temperature desired by a user.
[41] As another example, the heater 13 may include an induction heater. In
detail, the
heater 13 may include an electrically conductive coil for heating a cigarette
in an
induction heating method, and the cigarette may include a susceptor which may
be
heated by the induction heater.
[42] For example, the heater 13 may include a tube-type heating element, a
plate-type
heating element, a needle-type heating element, or a rod-type heating element,
and
may heat the inside or the outside of the cigarette 2, according to the shape
of the
heating element.
[43] Also, the aerosol generating device 1 may include a plurality of
heaters 13. Here, the
plurality of heaters 13 may be inserted into the cigarette 2 or may be
arranged outside
the cigarette 2. Also, some of the plurality of heaters 13 may be inserted
into the
cigarette 2 and the others may be arranged outside the cigarette 2. In
addition, the
shape of the heater 13 is not limited to the shapes illustrated in FIGS. 1
through 3 and
CA 03220667 2023- 11- 28
6
may include various shapes.
[44] The vaporizer 14 may generate aerosol by heating a liquid composition
and the
generated aerosol may pass through the cigarette 2 to be delivered to a user.
In other
words, the aerosol generated via the vaporizer 14 may move along an air flow
passage
of the aerosol generating device 1 and the air flow passage may be configured
such
that the aerosol generated via the vaporizer 14 passes through the cigarette
to be
delivered to the user.
[45] For example, the vaporizer 14 may include a liquid storage, a liquid
delivery
element, and a heating element, but it is not limited thereto. For example,
the liquid
storage, the liquid delivery element, and the heating element may be included
in the
aerosol generating device 1 as independent modules.
[46] The liquid storage may store a liquid composition. For example, the
liquid com-
position may be a liquid including a tobacco-containing material having a
volatile
tobacco flavor component, or a liquid including a non-tobacco material. The
liquid
storage may be formed to be detachable from the vaporizer 14 or may be formed
in-
tegrally with the vaporizer 14.
[47] For example, the liquid composition may include water, a solvent,
ethanol, plant
extract, spices, flavorings, or a vitamin mixture. The spices may include
menthol,
peppermint, spearmint oil, and various fruit-flavored ingredients, but are not
limited
thereto. The flavorings may include ingredients capable of providing various
flavors or
tastes to a user. Vitamin mixtures may be a mixture of at least one of vitamin
A,
vitamin B, vitamin C, and vitamin E, but are not limited thereto. Also, the
liquid com-
position may include an aerosol forming substance, such as glycerin and
propylene
glycol.
[48] The liquid delivery element may deliver the liquid composition of the
liquid storage
to the heating element. For example, the liquid delivery element may be a wick
such as
cotton fiber, ceramic fiber, glass fiber, or porous ceramic, but is not
limited thereto.
[49] The heating element is an element for heating the liquid composition
delivered by the
liquid delivery element. For example, the heating element may be a metal
heating wire,
a metal hot plate, a ceramic heater, or the like, but is not limited thereto.
In addition,
the heating element may include a conductive filament such as nichrome wire
and may
be positioned as being wound around the liquid delivery element. The heating
element
may be heated by a current supply and may transfer heat to the liquid
composition in
contact with the heating element, thereby heating the liquid composition. As a
result,
aerosol may be generated.
[50] For example, the vaporizer 14 may be referred to as a cartomizer or an
atomizer, but
it is not limited thereto.
[51] The aerosol generating device 1 may further include general-purpose
components in
CA 03220667 2023- 11- 28
7
addition to the battery 11, the controller 12, the heater 13, and the
vaporizer 14. For
example, the aerosol generating device 1 may include a display capable of
outputting
visual information and/or a motor for outputting haptic information. Also, the
aerosol
generating device 1 may include at least one sensor (a puff detecting sensor,
a tem-
perature detecting sensor, a cigarette insertion detecting sensor, etc.).
Also, the aerosol
generating device 1 may be formed as a structure that, even when the cigarette
2 is
inserted into the aerosol generating device 1, may introduce external air or
discharge
internal air.
[52] Although not illustrated in FIGS. 1 through 3, the aerosol generating
device 1 and an
additional cradle may form together a system. For example, the cradle may be
used to
charge the battery 11 of the aerosol generating device 1. Alternatively, the
heater 13
may be heated when the cradle and the aerosol generating device 1 are coupled
to each
other.
[53] The cigarette 2 may be similar to a general combustive cigarette. For
example, the
cigarette 2 may be divided into a first portion including an aerosol
generating material
and a second portion including a filter, etc. Alternatively, the second
portion of the
cigarette 2 may also include an aerosol generating material. For example, an
aerosol
generating material made in the form of granules or capsules may be inserted
into the
second portion.
[54] The entire first portion may be inserted into the aerosol generating
device 1, and the
second portion may be exposed to the outside. Alternatively, only a portion of
the first
portion may be inserted into the aerosol generating device 1, or the entire
first portion
and a portion of the second portion may be inserted into the aerosol
generating device
1. The user may puff aerosol while holding the second portion by the mouth of
the
user. In this case, the aerosol is generated by the external air passing
through the first
portion, and the generated aerosol passes through the second portion and is
delivered to
the user's mouth.
[55] For example, the external air may flow into at least one air passage
formed in the
aerosol generating device 1. For example, opening and closing of the air
passage and/
or a size of the air passage formed in the aerosol generating device 1 may be
adjusted
by the user. Accordingly, the amount and the quality of smoking may be
adjusted by
the user. As another example, the external air may flow into the cigarette 2
through at
least one hole formed in a surface of the cigarette 2.
[56] Hereinafter, an example of the cigarette 2 will be described with
reference to FIGS. 4
and 5.
[57] FIGS. 4 and 5 illustrate examples of the cigarette.
[58] Referring to FIG. 4, the cigarette 2 may include a tobacco rod 21 and
a filter rod 22.
FIG. 4 illustrates that the filter rod 22 includes a single segment. However,
the filter
CA 03220667 2023- 11- 28
8
rod 22 is not limited thereto. In other words, the filter rod 22 may include a
plurality of
segments. For example, the filter rod 22 may include a segment configured to
cool an
aerosol and a segment configured to filter a certain component included in the
aerosol.
Also, as necessary, the filter rod 22 may further include at least one segment
configured to perform other functions.
[59] A diameter of the cigarette 2 may be in a range of 5 mm to 9 mm, and a
length may
be about 48 mm, but embodiments are not limited thereto. For example, a length
of the
tobacco rod 21 may be about 12 mm, a length of a first segment of the filter
rod 22
may be about 10 mm, a length of a second segment of the filter rod 22 may be
about 14
mm, and a length of the third segment of the filter rod 22 may be about 12 mm,
but
embodiments are not limited thereto.
[60] The cigarette 2 may be packaged using at least one wrapper 24. The
wrapper 24 may
have at least one hole through which external air may be introduced or
internal air may
be discharged. For example, the cigarette 2 may be packaged by one wrapper 24.
As
another example, the cigarette 2 may be doubly packaged by two or more
wrappers 24.
For example, the tobacco rod 21 may be packaged by a first wrapper 241, and
the filter
rod 22 may be packaged by wrappers 242, 243, 243. And the entire cigarette 2
may be
packaged by a single wrapper. When each of the tobacco rod 21 or the filter
rod 22 is
composed of a plurality of segments, each segment may be packaged by separate
wrappers.
[61] The first wrapper 241 and the second wrapper 242 may be made of
general filter
wrapping paper. For example, the first wrapper 241 and the second wrapper 242
may
be porous wrapping paper or non-porous wrapping paper. In addition, the first
wrapper
241 and the second wrapper 242 may be made of oil-resistant paper and/or an
aluminum laminated-paper packaging material.
[62] The third wrapper 243 may be made of hard wrapping paper. For example,
a basis
weight of the third wrapper 243 may be in a range of 88 g/m2 to 96 g/m2,
preferably in
a range of 90 g/m2 to 94 g/m2. In addition, a thickness of the third wrapper
243 may
be in a range of 120 urn to 130 urn, preferably 125 urn.
[63] The fourth wrapper 244 may be made of oil-resistant hard wrapping
paper. For
example, a basis weight of the fourth wrapper 244 may be in a range of 88 g/m2
to 96
g/m2, preferably in a range of 90 g/m2 to 94 g/m2. In addition, a thickness of
the
fourth wrapper 244 may be in a range of 120 urn to 130 urn, preferably 125
urn.
[64] The fifth wrapper 245 may be made of sterile paper (MFW). Here, the
sterile paper
(MFW) may indicate paper specially made to increase tensile strength, a degree
of
water resistance, a degree of smoothness, and so on compared to general paper.
For
example, a basis weight of the fifth wrapper 245 may be in a range of 57 g/m2
to 63 g/
m2, preferably 60 g/m2. In addition, a thickness of the fifth wrapper 245 may
be in a
CA 03220667 2023- 11- 28
9
range of 64 um to 70 urn, preferably 67 um.
[65] A preset material may be internally added to the fifth wrapper 245.
Here, an example
of the preset material may include silicon but is not limited thereto. For
example,
silicon has properties, such as heat resistance with little change with
temperature,
oxidation resistance that does not oxidize, resistance to various chemicals,
water re-
pellency, or electrical insulation. However, any material having the
properties
described above other than silicon may be applied (or coated) to the fifth
wrapper 245
without limitation.
[66] The fifth wrapper 245 may prevent the cigarette 2 from burning. For
example, when
the tobacco rod 210 is heated by the heater 13, there is a possibility that
the cigarette 2
burns. In particular, when the temperature increases above an ignition point
of any one
of materials included in the tobacco rod 310, the cigarette 2 may burn. Even
in this
case, the cigarette 2 may be prevented from burning because the fifth wrapper
245
includes an incombustible material.
[67] In addition, the fifth wrapper 245 may prevent the aerosol generating
device 1 from
being contaminated by materials generated from the cigarette 2. Liquid
substances may
be generated in the cigarette 2 by a user's puff. For example, the liquid
substances (for
example, moisture and so on) may be generated as the aerosol generated in the
cigarette 2 is cooled due to external air. As the fifth wrapper 245 wraps the
cigarette 2,
liquid substances generated in the cigarette 2 may be prevented from leaking
out of the
cigarette 2.
[68] The tobacco rod 21 may include an aerosol generating material. For
example, the
aerosol generating material may include at least one of glycerin, propylene
glycol,
ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol,
tetraethylene
glycol, and oleyl alcohol, but it is not limited thereto. Also, the tobacco
rod 21 may
include other additives, such as flavors, a wetting agent, and/or organic
acid. Also, the
tobacco rod 21 may include a flavored liquid, such as menthol or a
moisturizer, which
is injected to the tobacco rod 21.
[69] The tobacco rod 21 may be manufactured in various forms. For example,
the tobacco
rod 21 may be formed as a sheet or a strand. Also, the tobacco rod 21 may be
formed
as a pipe tobacco, which is formed of tiny bits cut from a tobacco sheet.
Also, the
tobacco rod 21 may be surrounded by a heat conductive material. For example,
the
heat conductive material may be, but is not limited to, a metal foil such as
aluminum
foil. For example, the heat conductive material surrounding the tobacco rod 21
may
uniformly distribute heat transmitted to the tobacco rod 21, and thus, the
heat con-
ductivity applied to the tobacco rod may be increased and taste of the tobacco
may be
improved. Also, the heat conductive material surrounding the tobacco rod 21
may
function as a susceptor heated by the induction heater. Here, although not
illustrated in
CA 03220667 2023- 11- 28
10
the drawings, the tobacco rod 21 may further include an additional susceptor,
in
addition to the heat conductive material surrounding the tobacco rod 21.
[70] The filter rod 22 may include a cellulose acetate filter. Shapes of
the filter rod 22 are
not limited. For example, the filter rod 22 may include a cylinder-type rod or
a tube-
type rod having a hollow inside. Also, the filter rod 22 may include a recess-
type rod.
When the filter rod 22 includes a plurality of segments, at least one of the
plurality of
segments may have a different shape.
[71] The first segment of the filter rod 22 may be a cellulose acetate
filter. For example,
the first segment may be a tube-shaped structure including a hollow therein.
When the
heater 13 is inserted into the first segment, an internal material of the
tobacco rod 21
may be prevented from being pushed back, and there may be a cooling effect of
the
aerosol. A diameter of a hollow included in the first segment may be
appropriately
employed within a range of 2 mm to 4.5 mm, but is not limited thereto.
[72] A length of the first segment may be appropriately employed within a
range of 4 nun
to 30 mmm, but is not limited thereto. The length of the first segment may be
preferably 10 mm, but is not limited thereto.
[73] Hardness of the first segment may be adjusted by adjusting the content
of a
plasticizer during making of the first segment. In addition, the first segment
may be
made by inserting a structure, such as a film or a tube, made of the same or
different
material into the inside (for example, a hollow) thereof.
[74] The second segment of the filter rod 22 may cool the aerosol generated
by heating
the tobacco rod 21 by using the heater 13. Accordingly, a user may inhale the
aerosol
cooled to an appropriate temperature.
[75] A length or a diameter of the second segment may be variously
determined according
to a shape of the cigarette 2. For example, the length of the second segment
may be ap-
propriately employed within a range of 7 mm to 20 mm. The length of the second
segment may be preferably about 14 mm, but is not limited thereto.
[76] The second segment may be made by weaving polymer fibers. In this
case, flavoring
liquid may be applied to fibers made of polymer. Alternatively, the second
segment
may be made by weaving a separate fiber coated with flavoring liquid and a
fiber made
of a polymer together. Alternatively, the second segment may be made by a
crimped
polymer sheet.
[77] For example, the polymer may be made of a material selected from a
group
composed of polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC),
polyethylene terephthalate (PET), polylactic acid (PLA), cellulose acetate
(CA), and
aluminum foil.
[78] As the second segment is made by a woven polymer fiber or a crimped
polymer
sheet, the second segment may include one or more longitudinally extending
channels.
CA 03220667 2023- 11- 28
1 1
Here, the channels may indicate passages through which gases (for example, air
or
aerosol) pass.
[79] For example, a second segment composed of the crimped polymer sheet
may be
made of a material having a thickness between about 5 [im and about 300 pim,
for
example, a thickness between about 10 tm and about 250 Im. In addition, the
total
surface area of the second segment may be between about 300 mm2/mm and about
1000 mm2/mm. In addition, an aerosol cooling element may be made of a material
having a specific surface area between about 10 mm2/mg to about 100 mm2/mg.
[80] In addition, the second segment may include a thread including a
volatile flavor
component. Here, the volatile flavor component may be menthol, but is not
limited
thereto. For example, the thread may include sufficient menthol to provide at
least 1.5
mg of menthol to the second segment.
[81] The third segment of filter rod 22 may be a cellulose acetate filter.
A length of the
third segment may be appropriately employed within a range of 4 mm to 20 mm.
For
example, the length of the third segment may be about 12 mm, but is not
limited
thereto.
[82] In the process of making the third segment, flavor may be generated by
spraying
flavoring liquid on the third segment. Alternatively, a separate fiber coated
with
flavoring liquid may be inserted into the third segment. The aerosol generated
in the
tobacco rod 21 may be cooled as the aerosol passes through the second segment
of the
filter rod 22, and the cooled aerosol may be delivered to a user through the
third
segment. Accordingly, when a flavor element is added to the third segment,
there may
be an effect of enhancing the persistence of the flavor delivered to a user.
[83] Also, the filter rod 22 may include at least one capsule 23. Here, the
capsule 23 may
generate a flavor or an aerosol. For example, the capsule 23 may have a
configuration
in which a liquid containing a flavoring material is wrapped with a film. For
example,
the capsule 23 may have a spherical or cylindrical shape, but is not limited
thereto.
[84] Referring to FIG. 5, the cigarette 3 according to an embodiment may
further include
a front-end plug 33. The front-end plug 33 may be located on one side of the
tobacco
rod 31 which is opposite to the filter rod 32. The front-end plug 33 may
prevent the
tobacco rod 31 from being detached outwards and prevent the liquefied aerosol
from
flowing from the tobacco rod 31 into the aerosol generating device(1 of FIGS.
1
through 3), during smoking.
[85] The filter rod 32 may include a first segment 321 and second segment
322. Here, the
first segment 321 can correspond to a first segment of a filter rod 22 of Fig.
4, and the
second segment 322 can correspond to a third segment of a filter rod 22 of
Fig. 4.
[86] The diameter and total length of the cigarette 3 can correspond to the
diameter and
total length of the cigarette 2 of Fig. 4. For example, the length of the
front-end plug 33
CA 03220667 2023- 11- 28
12
may be about 7 mm, the length of the tobacco rod 31 may be about 15 mm, the
length
of the first segment 321 may be about 12 mm, and the length of the second
segment
322 may be about 14 mm, but it is not limited to this.
[87] The cigarette 3 may be packaged via at least one wrapper 35. The
wrapper 35 may
have at least one hole through which external air may be introduced or
internal air may
be discharged. For example, the front-end p1ug33 may be packaged via a first
wrapper
351, and the tobacco rod 31 may be packaged via a second wrapper 352, and the
first
segment 321 may be packaged via a third wrapper 353, and the second segment
322
may be packaged via a fourth wrapper 354. Also, the entire cigarette 3 may be
packaged via a fifth wrapper 355.
[88] Also, the fifth wrapper 355 may have at least one hole 36. For
example, the hole 36
may be formed in an area surrounding the tobacco rod 31, but is not limited
thereto.
The hole 36 may serve to transfer heat formed by the heater 13 shown in Fig. 2
and
Fig. 3 to the inside of the tobacco rod 31.
[89] Also, the second segment 322 may include at least one capsule 34.
Here, the capsule
34 may generate a flavor or an aerosol. For example, the capsule 34 may have a
con-
figuration in which a liquid containing a flavoring material is wrapped with a
film. For
example, the capsule 34 may have a spherical or cylindrical shape, but is not
limited
thereto.
[90] The first wrapper 351 may be made by coupling a metal foil, such as an
aluminum
foil, coupled to a general filter wrapping paper. For example, the total
thickness of the
first wrapper 351 may be in a range of 45 um to 55 um and may be preferably
50.3 um.
In addition, a thickness of the metal foil of the first wrapper 351 may be in
a range of 6
um to 7 um, preferably 6.3 um. In addition, a basis weight of the first
wrapper 351 may
be in a range of 50 g/m2 to 55 g/m2 and may be preferably 53 g/m2.
[91] The second wrapper 352 and the third wrapper 353 may be made of
general filter
wrapping paper. For example, the second wrapper 352 and the third wrapper 353
may
be porous wrapping paper or non-porous wrapping paper.
[92] For example, porosity of the second wrapper 352 may be 35000 CU, but
is not
limited thereto. In addition, a thickness of the second wrapper 352 may be in
a range of
70 um to 80 urn, preferably 78 um. In addition, the basis weight of the second
wrapper
352 may be in a range of 20 g/m2 to 25 g/m2 and may be preferably 23.5 g/m2.
[93] For example, porosity of the third wrapper 353 may be 24000 CU, but is
not limited
thereto. In addition, a thickness of the third wrapper 353 may be in a range
of 60 urn to
70 um, preferably 68 um. In addition, a basis weight of the third wrapper 353
may be
in a range of 20 g/m2 to 25 g/m2 and may be preferably 21 g/m2.
[94] The fourth wrapper 354 may be made of PLA laminated paper. Here, the
PLA
laminated paper means three layers of paper including a paper layer, a PLA
layer, and
CA 03220667 2023- 11- 28
13
another paper layer. For example, a thickness of the fourth wrapper 354 may be
in a
range of 100 urn to 120 urn, preferably 110 um. In addition, a basis weight of
the
fourth wrapper 354 may be in a range of 80 g/m2 to 100 g/m2 and may be
preferably
88 g/m2.
[95] The fifth wrapper 355 may be made of sterile paper (MFW). Here, the
sterile paper
(MFW) may indicate paper specially made to increase tensile strength, a degree
of
water resistance, a degree of smoothness, and so on compared to general paper.
For
example, a basis weight of the fifth wrapper 355 may be in a range of 57 g/m2
to 63 g/
m2 and may be preferably 60 g/m2. In addition, a thickness of the fifth
wrapper 355
may be in a range of 64 um to 70 um, preferably 67 um.
[96] A preset material may be internally added to the fifth wrapper 355.
Here, for
example, the preset material may be silicon, but is not limited thereto. For
example,
silicon has properties, such as heat resistance with little change with
temperature,
oxidation resistance that does not oxidize, resistance to various chemicals,
water re-
pellency, or electrical insulation. However, any material having the
properties
described above other than silicon may be applied (or coated) to the fifth
wrapper 245
without limitation.
[97] A front-end plug 33 may be made of cellulose acetate. For example, the
front-end
plug 33 may be made by adding a plasticizer (for example, triacetin) to
cellulose
acetate tow. A mono denier of a filament constituting the cellulose acetate
tow may be
in a range of 1.0 to 10.0, preferably in a range of 4.0 to 6Ø More
preferably, a mono
denier of a filament of the front-end plug 33 may be 5Ø In addition, a cross
section of
the filament constituting the front-end plug 33 may be Y-shaped. The total
denier of
the front-end plug 33 may be in a range of 20000 to 30000, preferably in a
range of
25000 to 30000. More preferably, the total denier of the front-end plug 33 may
be
28000.
[98] In addition, as necessary, the front-end plug 33 may include at least
one channel, and
a cross-sectional shape of the channel may be various.
[99] A tobacco rod 31 may correspond to the tobacco rod 21 described above
with
reference to FIG. 4. Accordingly, detailed descriptions of the tobacco rod 31
are
omitted below.
[100] The first segment 321 may be made of cellulose acetate. For example,
the first
segment 321 may have a tube-shaped structure including a hollow therein. The
first
segment 321 may be made by adding a plasticizer (for example, triacetin) to
cellulose
acetate tow. For example, a mono denier and the total denier of the first
segment 321
may be the same as the mono denier and the total denier of the front-end plug
33.
[1011 The second segment 322 may be made of cellulose acetate. A
mono denier of a
filament constituting the second segment 322 may be in a range of 1.0 to 10.0,
CA 03220667 2023- 11- 28
14
preferably in a range of 8.0 to 10Ø More preferably, the mono denier of the
filament
of the second segment 322 may be 9Ø In addition, a cross section of the
filament of
the second segment 322 may be Y-shaped. The total denier of the second segment
322
may be in a range of 20000 to 30000, preferably 25000.
[102] FIG. 6 is a block diagram of an aerosol generating device 600
according to another
embodiment.
[103] The aerosol generating device 600 may include a controller 610, a
sensing unit 620,
an output unit 630, a battery 640, a heater 650, a user input unit 660, a
memory 670,
and a communication unit 680. However, the internal structure of the aerosol
generating device 600 is not limited to those illustrated in FIG. 6. That is,
according to
the design of the aerosol generating device 600, it will be understood by one
of
ordinary skill in the art that some of the components shown in FIG. 6 may be
omitted
or new components may be added.
[104] The sensing unit 620 may sense a state of the aerosol generating
device 600 and a
state around the aerosol generating device 600, and transmit sensed
information to the
controller 610. Based on the sensed information, the controller 610 may
control the
aerosol generating device 600 to perform various functions, such as
controlling an
operation of the heater 650, limiting smoking, determining whether an aerosol
generating article (e.g., a cigarette, a cartridge, or the like) is inserted,
displaying a no-
tification, or the like.
[105] The sensing unit 620 may include at least one of a temperature sensor
622, an
insertion detection sensor 624, a puff sensor 626, and a humidity detection
sensor 628,
but is not limited thereto.
[106] The temperature sensor 622 may sense a temperature at which the
heater 650 (or an
aerosol generating material) is heated. The aerosol generating device 600 may
include
a separate temperature sensor for sensing the temperature of the heater 650,
or the
heater 650 may serve as a temperature sensor. Alternatively, the temperature
sensor
622 may also be arranged around the battery 640 to monitor the temperature of
the
battery 640.
[107] The temperature sensor 622 may measure the temperature at which the
heater 650 (or
an aerosol generating material) is heated and provide the measured temperature
to the
controller 610. The controller 610 may calculate the time ("temperature
increase time")
required for the measured temperature to reach volatilization temperature of
the
aerosol generating material by using the temperature sensor 622 and compare
the
calculated temperature increase time with a preset threshold to determine a
humidity
state of the cigarette 2 of FIG. 2. The controller 610 may control power
supplied to the
heater 650 based on the determined humidity state of the cigarette.
[108] The insertion detection sensor 624 may sense insertion and/or removal
of an aerosol
CA 03220667 2023- 11- 28
15
generating article. For example, the insertion detection sensor 624 may
include at least
one of a film sensor, a pressure sensor, an optical sensor, a resistive
sensor, a ca-
pacitive sensor, an inductive sensor, and an infrared sensor, and may sense a
signal
change according to the insertion and/or removal of an aerosol generating
article.
[109] The puff sensor 626 may sense a user's puff on the basis of various
physical changes
in an airflow passage or an airflow channel. For example, the puff sensor 626
may
sense a user's puff on the basis of any one of a temperature change, a flow
change, a
voltage change, and a pressure change.
[110] According to an embodiment, the humidity detection sensor 628 may
directly
measure the amount of moisture included in the cigarette 2 of FIG. 2 and
provide the
measured humidity information to the controller 610. For example, the humidity
detection sensor 628 may be within an accommodation passage 1004h (in FIG. 7A)
of
the aerosol generating device 600. According to another embodiment, the
humidity
detection sensor 628 may measure the amount of moisture condensed around the
cigarette 2 after the cigarette 2 of FIG. 2 is heated. When heated, moisture
evaporation
of the excessively moist cigarette may be greater than moisture evaporation of
a
normal cigarette. Due to this, when heated, dew condensation may occur more in
the
excessively moist cigarette than in the normal cigarette. For example, the
humidity
detection sensor 628 may be around an outer hole 1002p of FIG. 7A overlapping
the
accommodation passage 1004h (in FIG. 7A) of the aerosol generating device 600
or at
a door 1003 of FIG. 7A.
[111] The humidity detection sensor 628 may be any one of an electrical
resistance sensor,
a capacitance sensor, and an optical sensor. However, this is an example, and
the
humidity detection sensor 628 is not limited thereto.
[112] The sensing unit 620 may include, in addition to the temperature
sensor 622, the
insertion detection sensor 624, and the puff sensor 626 described above, at
least one of
a temperature/humidity sensor, a barometric pressure sensor, a magnetic
sensor, an ac-
celeration sensor, a gyroscope sensor, a location sensor (e.g., a global
positioning
system (GPS)), a proximity sensor, and a red-green-blue (RGB) sensor
(illuminance
sensor). Because a function of each of sensors may be intuitively inferred by
one of
ordinary skill in the art from the name of the sensor, a detailed description
thereof may
be omitted.
[113] The output unit 630 may output information on a state of the aerosol
generating
device 600 and provide the information to a user. The output unit 630 may
include at
least one of a display unit 632, a haptic unit 634, and a sound output unit
636, but is
not limited thereto. When the display unit 632 and a touch pad form a layered
structure
to form a touch screen, the display unit 632 may also be used as an input
device in
addition to an output device.
CA 03220667 2023- 11- 28
16
[114] The display unit 632 may visually provide information about the
aerosol generating
device 600 to the user. For example, information about the aerosol generating
device
600 may mean various pieces of information, such as a charging/discharging
state of
the battery 640 of the aerosol generating device 600, a preheating state of
the heater
650, an insertion/removal state of an aerosol generating article, or a state
in which the
use of the aerosol generating device 600 is restricted (e.g., sensing of an
abnormal
object), or the like, and the display unit 632 may output the information to
the outside.
The display unit 632 may be, for example, a liquid crystal display panel
(LCD), an
organic light-emitting diode (OLED) display panel, or the like. In addition,
the display
unit 632 may be in the form of a light-emitting diode (LED) light-emitting
device.
[115] The haptic unit 634 may tactilely provide information about the
aerosol generating
device 600 to the user by converting an electrical signal into a mechanical
stimulus or
an electrical stimulus. For example, the haptic unit 634 may include a motor,
a piezo-
electric element, or an electrical stimulation device.
[116] The sound output unit 636 may audibly provide information about the
aerosol
generating device 600 to the user. For example, the sound output unit 636 may
convert
an electrical signal into a sound signal and output the same to the outside.
[117] The battery 640 may supply power used to operate the aerosol
generating device 600.
The battery 640 may supply power such that the heater 650 may be heated. In
addition,
the battery 640 may supply power required for operations of other components
(e.g.,
the sensing unit 620, the output unit 630, the user input unit 660, the memory
670, and
the communication unit 680) in the aerosol generating device 600. The battery
640
may be a rechargeable battery or a disposable battery. For example, the
battery 640
may be a lithium polymer (LiPoly) battery, but is not limited thereto.
[118] The heater 650 may receive power from the battery 640 to heat an
aerosol generating
material. Although not illustrated in FIG. 6, the aerosol generating device
600 may
further include a power conversion circuit (e.g., a direct current (DC)/DC
converter)
that converts power of the battery 640 and supplies the same to the heater
650. In
addition, when the aerosol generating device 600 generates aerosols in an
induction
heating method, the aerosol generating device 600 may further include a DC/al-
ternating current (AC) that converts DC power of the battery 640 into AC
power.
[119] The controller 610, the sensing unit 620, the output unit 630, the
user input unit 660,
the memory 670, and the communication unit 680 may each receive power from the
battery 640 to perform a function. Although not illustrated in FIG. 6, the
aerosol
generating device 600 may further include a power conversion circuit that
converts
power of the battery 640 to supply the power to respective components, for
example, a
low dropout (LDO) circuit, or a voltage regulator circuit.
[120] In an embodiment, the heater 650 may be formed of any suitable
electrically resistive
CA 03220667 2023- 11- 28
17
material. For example, the suitable electrically resistive material may be a
metal or a
metal alloy including titanium, zirconium, tantalum, platinum, nickel, cobalt,
chromium, hafnium, niobium, molybdenum, tungsten, tin, gallium, manganese,
iron,
copper, stainless steel, nichrome, or the like, but is not limited thereto. In
addition, the
heater 650 may be implemented by a metal wire, a metal plate on which an
electrically
conductive track is arranged, a ceramic heating element, or the like, but is
not limited
thereto.
[121] In another embodiment, the heater 650 may be a heater of an induction
heating type.
For example, the heater 650 may include a suspector that heats an aerosol
generating
material by generating heat through a magnetic field applied by a coil.
[122] In an embodiment, the heater 650 may include a plurality of heaters.
For example,
the heater 650 may include a first heater for heating the cigarette and a
second heater
for heating the liquid composition.
[123] The user input unit 660 may receive information input from the user
or may output
information to the user. For example, the user input unit 660 may include a
key pad, a
dome switch, a touch pad (a contact capacitive method, a pressure resistance
film
method, an infrared sensing method, a surface ultrasonic conduction method, an
integral tension measurement method, a piezo effect method, or the like), a
jog wheel,
a jog switch, or the like, but is not limited thereto. In addition, although
not illustrated
in FIG. 6, the aerosol generating device 600 may further include a connection
interface, such as a universal serial bus (USB) interface, and may connect to
other
external devices through the connection interface, such as the USB interface,
to
transmit and receive information, or to charge the battery 640.
[124] The memory 670 is a hardware component that stores various types of
data (i.e. tem-
perature profile) processed in the aerosol generating device 600, and may
store data
processed and data to be processed by the controller 610. The memory 670 may
include at least one type of storage medium from among a flash memory type, a
hard
disk type, a multimedia card micro type memory, a card-type memory (for
example,
secure digital (SD) or extreme digital (XD) memory, etc.), random access
memory
(RAM), static random access memory (SRAM), read-only memory (ROM), elec-
trically erasable programmable read-only memory (EEPROM), programmable read-
only memory (PROM), a magnetic memory, a magnetic disk, and an optical disk.
The
memory 670 may store an operation time of the aerosol generating device 600,
the
maximum number of puffs, the current number of puffs, at least one temperature
profile, data on a user's smoking pattern, etc.
[125] The communication unit 680 may include at least one component for
communication
with another electronic device. For example, the communication unit 680 may
include
a short-range wireless communication unit 682 and a wireless communication
unit 684.
CA 03220667 2023- 11- 28
18
[126] The short-range wireless communication unit 682 may include a
Bluetooth commu-
nication unit, a Bluetooth Low Energy (BLE) communication unit, a near field
com-
munication unit, a wireless LAN (WLAN) (Wi-Fi) communication unit, a Zigbee
com-
munication unit, an infrared data association (IrDA) communication unit, a Wi-
Fi
Direct (WFD) communication unit, an ultra-wideband (UWB) communication unit,
an
Ant+ communication unit, or the like, but is not limited thereto.
[127] The wireless communication unit 684 may include a cellular network
communication
unit, an Internet communication unit, a computer network (e.g., local area
network
(LAN) or wide area network (WAN)) communication unit, or the like, but is not
limited thereto. The wireless communication unit 684 may also identify and au-
thenticate the aerosol generating device 600 within a communication network by
using
subscriber information (e.g., International Mobile Subscriber Identifier
(IMSI)).
[128] The controller 610 may control general operations of the aerosol
generating device
600. In an embodiment, the controller 610 may include at least one processor.
The
processor may be implemented as an array of a plurality of logic gates or may
be im-
plemented as a combination of a general-purpose microprocessor and a memory in
which a program executable by the microprocessor is stored. It will be
understood by
one of ordinary skill in the art that the processor may be implemented in
other forms of
hardware.
[129] The controller 610 may control the temperature of the heater 650 by
controlling
supply of power of the battery 640 to the heater 650. For example, the
controller 610
may control power supply by controlling switching of a switching element
between the
battery 640 and the heater 650. In another example, a direct heating circuit
may also
control power supply to the heater 650 according to a control command of the
controller 610.
[130] The controller 610 may analyze a result sensed by the sensing unit
620 and control
subsequent processes to be performed. For example, the controller 610 may
control
power supplied to the heater 650 to start or end an operation of the heater
650 on the
basis of a result sensed by the sensing unit 620. As another example, the
controller 610
may control, based on a result sensed by the sensing unit 620, an amount of
power
supplied to the heater 650 and the time the power is supplied, such that the
heater 650
may be heated to a certain temperature or maintained at an appropriate
temperature.
[131] The controller 610 may control the output unit 630 on the basis of a
result sensed by
the sensing unit 620. For example, when the number of puffs counted through
the puff
sensor 626 reaches a preset number, the controller 610 may notify the user
that the
aerosol generating device 600 will soon be terminated through at least one of
the
display unit 632, the haptic unit 634, and the sound output unit 636.
[132] The controller 610 may determine the humidity state of the cigarette
by using the
CA 03220667 2023- 11- 28
19
temperature sensor 622. The controller 610 may operate the heater 950 with a
tem-
perature profile corresponding to the determined humidity state of the
cigarette.
[133] Hereinafter, a normal cigarette and an excessively moist cigarette
are classified on
the basis of the temperature increase time of the cigarette 2 of FIG. 2, and
when a
cigarette corresponds to the excessively moist cigarette, an aerosol
generating device to
which a compensation profile is applied and an operating method thereof are
described
in detail with reference to FIGS. 7A to 11.
[134] FIG. 7A is a perspective view illustrating an appearance of an
aerosol generating
device according to an embodiment of the present disclosure. FIG. 7B is a
perspective
view illustrating an operating state in which some components are separated
from the
aerosol generating device according to the embodiment illustrated in FIG. 7A.
[135] Referring to FIG. 7A, an aerosol generating device 1000 may include a
case 1100
and a cover 1002. The cover 1002 is coupled to one end portion of the case
1100, and
accordingly, the case 1100 and the cover 1002 form together an appearance of
the
aerosol generating device 1000.
[136] The case 1100 forms a part of the appearance of the aerosol
generating device 1000
and functions to accommodate and protect various components therein.
[137] The cover 1002 and the case 1100 may be made of a plastic material
that does not
transfer heat well or a metal material coated with a thermal barrier material
on a
surface thereof. The cover 1002 and the case 1100 may be made by, for example,
an
injection molding method, a three dimensional (3D) printing method, or a
method of
assembling small components made by injection molding.
[138] A holding device (not illustrated) may be installed between the cover
1002 and the
case 1100 to maintain a coupled state of the cover 1002 and the case 1100. The
holding
device may include, for example, a protrusion and a groove. By maintaining a
state in
which the protrusion is inserted into the groove, the coupled state of the
cover 1002
and the case 1100 may be maintained, and a structure in which the protrusion
is moved
to be separated from the groove by an operation button that may be pressed by
a user
may also be used.
[139] In addition, the holding device may include, for example, a magnet
and a metal
member sticking to the magnet. When a magnet is used for the holding device, a
magnet may be installed in one of the case 1100 and the cover 1002, and a
metal
member that is attached to the magnet may be installed in the other, or the
magnet may
also be installed in both the case 1100 and the cover 1002.
[140] Ann outer hole 1002p into which the cigarette 2000 may be inserted is
formed in an
upper surface of the cover 1002 coupled to the case 1100. In addition, a rail
1003r is
formed on the upper surface of the cover 1002 at a position adjacent to the
outer hole
1002p. A door 1003 that may slide along the upper surface of the cover 1002 is
CA 03220667 2023- 11- 28
20
installed on the rail 1003r. The door 1003 may linearly slide along the rail
1003r.
[141] As the door 1003 moves along the rail 1003r in a direction of an
arrow in FIG. 7A,
the outer hole 1002p and an insertion hole 1004p, which allow the cigarette
2000 to
pass through the cover 1002 and be inserted into the case 1100 may be exposed
to the
outside. The outer hole 1002p of the cover 1002 serves to expose, to the
outside, the
insertion hole 1004p of the accommodation passage 1004h that may accommodate
the
cigarette 2000.
[142] When the outer hole 1002p is exposed to the outside by the door 1003,
a user may
insert an end portion 2000b of the cigarette 2000 into the outer hole 1002p
and the
insertion hole 1004p to mount the cigarette 2000 in the accommodation passage
1004h
formed inside the cover 1002.
[143] The rail 1003r has a concave groove shape, but the embodiment is not
limited by the
shape of the rail 1003r. For example, the rail 1003r may have a convex shape
or may
also extend in a curved shape instead of a straight line.
[144] A button 1009 may be installed in the case 1100. An operation of the
aerosol
generating device 1000 may be controlled by operating the button 1009.
[145] In a state where the cover 1002 is coupled to the case 1100, an air
inflow gap 1002g,
which allows air to flow into the cover 1002, is formed at a portion where the
cover
1002 is coupled to the case 1100.
[146] Referring to FIG. 7B, while the cigarette 2000 is inserted into the
aerosol generating
device 1000, a user may place the cigarette 2000 in his/her mouth and inhale
an
aerosol.
[147] The case 1100 may include an upper case 1100a into which the
cigarette 2000 is
inserted and is heated, and a lower case 1100b that supports and protects
various
components installed therein. Hereinafter, the case 1100 may collectively
refer to the
upper case 1100a and the lower case 1100b.
[148] The cover 1002 may be coupled to the case 1100 to cover a cigarette
support portion
4 coupled to the case 1100. In addition, the cover 1002 may be separated from
the case
1100 as needed.
[149] FIG. 8 is an example diagram illustrating a basic temperature profile
of an aerosol
generating device.
[150] Referring to FIGS. 6 and 8, the controller 610 of the aerosol
generating device 600
may calculate a temperature increase time ti of the cigarette 2000 of FIG. 7A
by using
the temperature sensor 622 and may compare the calculated temperature increase
time
ti of the cigarette 2000 with a preset threshold to determine a humidity state
of the
cigarette 2000. When the temperature increase time t 1 is less than the
threshold, the
controller 610 may supply power to the heater 650 according to a basic
temperature
profile TP.
CA 03220667 2023- 11- 28
21
[151] In this case, the preset threshold is the time it takes for an
excessively moist cigarette
to reach a first target temperature Ti and may be determined experimentally
and sta-
tistically. In a case where the temperature increase time to reach the first
target tem-
perature Ti is greater than or equal to the threshold, if the heater 650
operates
according to the basic temperature profile TP, a user may feel hot due to
moisture
included in the cigarette 2000.
[152] As illustrated in FIG. 8, the basic temperature profile TP may
include a first
preheating period P1 and a first smoking period P2, and the first preheating
period Pl
and the first smoking period P2 may be divided into more subdivided periods.
[153] The first preheating period P1 may include a first preheating
increase period Pll (or
the temperature increase time H) in which the temperature increases to the
first target
temperature Ti, a first preheating maintenance period P12 in which the first
target tem-
perature T1 is maintained, and a first preheating drop period P13 in which the
tem-
perature drops to a second target temperature T2. The first smoking period P2
may
include a first smoking drop period P2la in which the temperature drops to a
third
target temperature T3, a second smoking drop period P21b in which the
temperature
drops to a fourth target temperature T4, a third smoking drop period P2 1c in
which the
temperature drops to a fifth target temperature T5, and a first smoking
maintenance
period P22 in which the fifth target temperature T5 is maintained. Here,
although an
example, in which the first preheating period P1 includes the first preheating
increase
period P11, the first preheating maintenance period P12, and the first
preheating drop
period P13, and the first smoking period P2 includes the first smoking drop
period
P21a, the second smoking drop period P2 1b, the third smoking drop period P2
1c, and
the first smoking maintenance period P22, is described, the example is not
limited
thereto, and various modifications may be made depending on shapes or types of
a
cigarette or a heater.
[154] FIG. 9A is an example diagram illustrating a first correction profile
of an aerosol
generating device.
[155] Referring to FIGS. 6, 8, and 9A, when it is determined that the
inserted cigarette
2000 of FIG. 7A is an excessively moist cigarette, the aerosol generating
device 600
may operate the heater 650 by applying a first correction profile CP1 that is
described
below.
[156] The controller 610 according to an embodiment may calculate the
temperature
increase time t2 of the cigarette 2000 by using the temperature sensor 622 and
compare
the calculated temperature increase time t2 of the cigarette 2000 with a
preset threshold
(e.g., ti) to determine a humidity state of the cigarette 2000. When the
temperature
increase time t2 is greater than or equal to the threshold, the controller 610
may supply
power to the heater 650 according to the first correction profile CPI.
CA 03220667 2023- 11- 28
22
[157] However, a method of determining a humidity state of the cigarette
2000 is not
limited thereto. The controller 610 according to another embodiment may
determine
the humidity state of the cigarette 2000 by using the humidity detection
sensor 628.
[158] According to an embodiment, the humidity detection sensor 628 may
directly
measure the amount of moisture included in the cigarette 2000 and provide the
measured humidity information to the controller 610. For example, the humidity
detection sensor 628 may be in the accommodation passage 1004h (in FIG. 7A) of
the
aerosol generating device 600. According to another embodiment, the humidity
detection sensor 628 may measure the amount of moisture condensed around the
cigarette after the cigarette 2 of FIG. 2 is heated. When heated, moisture
evaporation of
the excessively moist cigarette may be greater than moisture evaporation of a
normal
cigarette. Due to this, when heated, dew condensation may occur more in the ex-
cessively moist cigarette than in the normal cigarette. For example, the
humidity
detection sensor 628 may be around the outer hole 1002p of FIG. 7A overlapping
the
accommodation passage 1004h (in FIG. 7A) of the aerosol generating device 600
or
may be in the door 1003 of FIG. 7A.
[159] The humidity detection sensor 628 may be any one of an electrical
resistance sensor,
a capacitance sensor, and an optical sensor. However, this is an example, and
the
humidity detection sensor 628 is not limited thereto.
[160] As illustrated in FIG. 9A, the first correction profile CP1 may
include a second
preheating period P3 and a second smoking period P4, and the second preheating
period P3 and the second smoking period P4 may be divided into more subdivided
periods.
[161] The second preheating period P3 may include a second preheating
increase period
P31 in which the temperature increases to a first target temperature Ti (or a
tem-
perature increase time t2), a second preheating maintenance period P32 in
which the
first target temperature Ti is maintained, a second preheating drop period P33
in which
the temperature drops to a fifth target temperature T5, and a third preheating
maintenance period P34 in which the fifth target temperature T5 is maintained.
The
second smoking period P4 may include a second smoking maintenance period P41
in
which the fifth target temperature T5 is maintained. Here, although an
example, in
which the second preheating period P2 includes the second preheating increase
period
P31, the second preheating maintenance period P32, the second preheating drop
period
P33, and the third preheating maintenance period P34 and the second smoking
period
P4 includes the second smoking maintenance period P41, is described, the
example is
not limited thereto, and various modifications may be made depending on shapes
or
types of a cigarette or a heater.
[162] Referring to FIGS. 8 and 9A, the second preheating period P3 of the
first correction
CA 03220667 2023- 11- 28
23
profile CP1 may be longer than the first preheating period P1 of the basic
temperature
profile TP.
[163] Specifically, the second preheating period P31 of the first
correction profile CP1 may
be longer than the first preheating period Pll of the basic temperature
profile TP. For
example, there may be a difference of about 3 to 4 seconds between a point in
time t2
when the first target temperature Ti of the first correction profile CP1
reaches and a
point in time ti when the first target temperature Ti of the basic temperature
profile
TP reaches. This is because an excessively moist cigarette has more moisture
than a
normal cigarette, and accordingly, not only is the evaporation of moisture to
be heated
delayed, but also a rate of temperature increase of a cigarette may be slowed
down.
[164] The second preheating maintenance period P32 of the first correction
profile CP1
may be longer than the first preheating maintenance period P12 of the basic
tem-
perature profile TP. As such, more moisture included in the cigarette 2000 may
be
evaporated, and accordingly initial hot feeling may be reduced.
[165] In addition, a temperature change in the second preheating drop
period P33 of the
first correction profile CP1 may be greater than a temperature change in the
first
preheating drop period P13 of the basic temperature profile TP. For example,
the first
preheating drop period P13 may change from the first target temperature Ti to
the
second target temperature T2, but the second preheating drop period P33 may
change
from the first target temperature Ti to the fifth target temperature T5.
Because a user is
unlikely to feel hot due to moisture included in a normal cigarette, smoking
may start
at the second target temperature T2 higher than the fifth target temperature
T5. On the
other hand, because moisture included in an excessively moist cigarette is
more than
moisture included in a normal cigarette, a temperature change in the second
preheating
drop period P33 may be set to be greater, and thus the initial hot feeling may
be
reduced.
[166] In addition, in order to reduce the initial hot feeling, the second
preheating period P3
of the first correction profile CPI may further include the third preheating
maintenance
period P34 in which the fifth target temperature T5 is maintained.
[167] FIG. 9B is an example diagram illustrating a second correction
profile of an aerosol
generating device.
[168] Referring to FIGS. 6, 8, 9A, and 9B, the controller 610 of the
aerosol generating
device 600 may detect insertion of the cigarette 2000 of FIG. 7A by using the
insertion
detection sensor 624. When the insertion of the cigarette 2000 is detected,
the
controller 610 may check whether the first correction profile CP1 was used
during
heating by the heater 650 immediately before. For example, the controller 610
may
check whether the first correction profile CP1 was used when the heating was
made by
the heater 650 immediately before, on the basis of a temperature profile use
history
CA 03220667 2023- 11- 28
24
stored in the memory 670.
[169] When it is determined that the first correction profile CP1 was used
during the
heating by the heater 650 immediately before, the controller 610 may determine
whether the heater 650 is being used continuously (or repeatedly).
[170] The controller 610 according to an embodiment may determine whether
the heater
650 was used continuously (or repeatedly) by using the temperature sensor 622.
[171] When the measured temperature of the heater 650 is less than a
reference tem-
perature, the controller 610 may determine that the use is not continuous and
may
determine again a humidity state of the cigarette 2000. For example, the
controller 610
may determine the humidity state of the cigarette 2000 by using the
temperature sensor
622 or the humidity detection sensor 628. When it is determined that the
cigarette 2000
is a normal cigarette according to the humidity state, the controller 610 may
supply
power to the heater 650 according to the basic temperature profile TP, and
when it is
determined that the cigarette 2000 is an excessively moist cigarette according
to the
humidity state, the controller 610 may supply power to the heater 650
according to the
first correction profile CPI.
[172] On the other hand, when the measured temperature of the heater 650 is
higher than or
equal to the reference temperature, the controller 610 determines that the use
is
continuous, select the second correction profile CP2, and supply power to the
heater
650 according to the second correction profile CP2. Since the first correction
profile
CPI was selected at the time of a previous smoking event, and it is common for
cigarette 2000 to be packaged in units of a certain number (for example, 20
pieces) in
the case of continuous use, the inserted cigarettes 2000 is also highly likely
to be an
excessively moist cigarette in this case.
[173] According to another embodiment, the controller 610 may also
determine whether
the heater 650 is being used continuously (or repeatedly) by comparing an
interval
between an end of the previous smoking event and a start of the current
smoking event
with a preset time.
[174] If the interval exceeds the preset time, the controller 610 may
determine that the use
is not continuous and may determine again a humidity state of the cigarette
2000
(select a basic temperature profile or a first correction profile). On the
other hand,
when the interval is within the preset time, the controller 610 may determine
that the
use is continuous (select a second correction profile).
[175] As illustrated in FIG. 9B, the second correction profile CP2 may
include a third
preheating period P5 and a third smoking period P6, and the third preheating
period 135
and the third smoking period P6 may be divided into more subdivided periods.
[176] The third preheating period P5 of the second correction profile CP2
may a third
preheating increase period P51 in which the temperature increases to a first
target tern-
CA 03220667 2023- 11- 28
25
perature Ti (or a temperature increase time t2), a fourth preheating
maintenance period
P52 in which the first target temperature Ti is maintained, a third preheating
drop
period P53 in which the temperature drops to a fifth target temperature T5,
and a fifth
preheating maintenance period P54 in which the fifth target temperature T5 is
maintained. The third smoking period P5 may include a third smoking
maintenance
period P61 in which the fifth target temperature T5 is maintained. Here,
although an
example, in which the third preheating period P3 includes the third preheating
increase
period PS I , the fourth preheating maintenance period P52, the third
preheating drop
period P53, and the fifth preheating maintenance period P54 and the third
smoking
period P6 includes the third smoking maintenance period P61, is described, the
example is not limited thereto, and various modifications may be made
depending on
shapes or types of a cigarette or a heater.
[1771 The third preheating period PS of the second correction
profile CP2 may be longer
than the first preheating period P1 of the basic temperature profile TP and
may be
shorter than the second preheating period P3 of the first correction profile
CP1.
[178] Specifically, the fourth preheating period maintenance period P52 of
the second
correction profile CP2 may be longer than the first preheating period P12 of
the basic
temperature profile TP. Due to this, more moisture included in the cigarette
2000 may
be evaporated, and accordingly initial hot feeling may be reduced.
[179] In addition, a temperature change in the third preheating drop period
P53 of the
second correction profile CP2 may be greater than a temperature change in the
first
preheating drop period P13 of the basic temperature profile TP. For example,
the first
preheating drop period P13 may change from the first target temperature Ti to
the
second target temperature T2, but the third preheating drop period P53 may
change
from the first target temperature Ti to the fifth target temperature T5.
Because a user is
unlikely to feel hot due to moisture included in a normal cigarette, smoking
may start
at the second target temperature T2 higher than the fifth target temperature
TS. On the
other hand, because moisture included in an excessively moist cigarette is
more than
moisture included in a normal cigarette, a temperature change in the third
preheating
drop period P53 may be set to be greater, and thus the initial hot feeling may
be
reduced.
[180] In addition, in order to reduce the initial hot feeling, the third
preheating period P5 of
the second correction profile CP2 may further include a fifth preheating
maintenance
period P54 in which the fifth target temperature T5 is maintained.
[1811 A start temperature TO of the second correction profile
CP2 may be higher than a
start temperature (e.g., room temperature of about 15 C) of the first
correction profile
CP1. Accordingly, the temperature increase time t3 of the second correction
profile
CP2 for the temperature reach the first target temperature T1 may be shorter
than the
CA 03220667 2023- 11- 28
26
temperature increase time t2 of the first correction profile CP1. In this
case, because
the aerosol generating device 600 initially has a high temperature, there is a
problem in
that a hot feeling may be given to a user.
[182] In this regard, the second correction profile CP2 takes a longer
preheating time after
reaching the first target temperature T1 than the first correction profile
CP1, and thus
initial hot feeling may be reduced.
[183] Referring to FIGS. 9A and 9B, the preheating time after reaching the
first target tem-
perature T1 of the second correction profile CP2 may correspond to the sum of
the
fourth preheating maintenance period P52, the third preheating drop period
P53, and
the fifth preheating maintenance period P54, and the preheating time after
reaching the
first target temperature Ti of the first correction profile CP1 may correspond
to the
sum of the second preheating maintenance period P32, the second preheating
drop
period P33, and the third preheating maintenance period P34. Here, the sum of
the
fourth preheating maintenance period P52, the third preheating drop period
P53, and
the fifth preheating maintenance period P54 is longer than the sum of the
second
preheating maintenance period P32, the second preheating drop period P33, and
the
third preheating maintenance period P34. In other words, the third smoking
period P6
of the second correction profile CP2 may be substantially the same as the
second
smoking period P4 of the first correction profile CP1.
[184] In addition, the time (that is, the fourth preheating maintenance
period P52) for
maintaining the first target temperature T1 of the second correction profile
CP2 may
also be shorter than the time (that is, the second preheating maintenance
period P32)
for maintaining the first target temperature Ti of the first correction
profile CP1.
[185] FIG. 10A is a flowchart illustrating an operating method of an
aerosol generating
device, according to an embodiment considering a humidity state of a
cigarette.
[186] Referring to FIGS. 6 to 10A, the operating method of the aerosol
generating device
may include step S100 of heating the cigarette 2000 by using the heater 650,
step S200
of calculating a temperature increase time of the cigarette 2000 by measuring
tem-
perature of the heater 650 by using the temperature sensor 622, step S300 of
de-
termining a humidity state of the cigarette 2000 by comparing the calculated
tem-
perature increase time of the cigarette 2000 with a preset threshold, steps
S410 and
S420 of selecting a temperature profile corresponding to the determined
humidity state
of the cigarette 2000, and step S500 of operating the heater 650 with the
selected tem-
perature profile.
11871 Specifically, in step S100 of heating the cigarette 2000
by using the heater 650, since
an excessively moist cigarette has more moisture than a normal cigarette,
evaporation
of moisture to be heated is delayed, and thus a rate of temperature increase
of an ex-
cessively moist cigarette may be slowed down.
CA 03220667 2023- 11- 28
7
[188] In step S200 of calculating a temperature increase time of the
cigarette 2000 by
measuring the temperature of the heater 650 by using the temperature sensor
622, the
controller 610 may determine the time it takes for the temperature of the
heater 650 to
reach the preset first target temperature Ti as the temperature increase time
of the
cigarette 2000.
[189] In step S300 of determining the humidity state of the cigarette 2000
by comparing
the calculated temperature increase time of the cigarette 2000 with the preset
threshold,
the controller 610 may determine the cigarette 2000 as a normal cigarette when
the
temperature increase time is less than the threshold and may determine the
cigarette
2000 as an excessively moist cigarette when the temperature increase time is
greater
than or equal to the threshold.
[190] In this case, the preset threshold is the time it takes for the
excessively moist cigarette
to reach the first target temperature Ti, and may be determined experimentally
and sta-
tistically. If the time to reach the first target temperature Ti is greater
than or equal to
the threshold and the heater 650 operates according to the basic temperature
profile TP,
a user may feel hot due to the moisture included in the cigarette 2000.
[191] In steps S410 and S420 of selecting a temperature profile
corresponding to the de-
termined humidity state of the cigarette 2000, the controller 610 may select
the basic
temperature profile TP when the temperature increase time is less than the
threshold,
and may select the first correction profile CP1 when the temperature increase
time is
greater than or equal to the threshold.
[192] In step S500 of operating the heater 650 with the selected
temperature profile, the
controller 610 may supply power to the heater 650 according to the basic
temperature
profile TP when the temperature increase time is less than the threshold, and
may
supply power to the heater 650 according to the first correction profile CP1
when the
temperature increase time is greater than or equal to the threshold.
[193] The basic temperature profile TP may include a first preheating
period P1 and a first
smoking period P2, and the first preheating period P1 and the first smoking
period P2
may be divided into further subdivided periods. The first correction profile
CP1 may
include a second preheating period P3 and a second smoking period P4, and the
second
preheating period P3 and the second smoking period P4 may be divided into
further
subdivided periods.
[194] The second preheating period P3 of the first correction profile CP1
may be longer
than the first preheating period P1 of the basic temperature profile TP.
[195] Specifically, a second preheating increase period P31 of the first
correction profile
CPI may be longer than a first preheating increase period Pll of the basic
temperature
profile TP.
[196] A second preheating maintenance period P32 may be longer than a first
preheating
CA 03220667 2023- 11- 28
28
maintenance period P12. Due to this, more moisture included in the cigarette
2000 may
be evaporated, and initial hot feeling may be reduced.
[197] In addition, a temperature change in the second preheating drop
period P33 may be
greater than a temperature change in a first preheating drop period P13.
Because a user
is unlikely to feel hot due to moisture included in a normal cigarette,
smoking may
start at the second target temperature T2 higher than the fifth target
temperature T5. On
the other hand, because moisture included in an excessively moist cigarette is
more
than moisture included in a normal cigarette, a temperature change in the
second
preheating drop period P33 may be set to be greater, and thus the initial hot
feeling
may be reduced.
[198] In addition, in order to reduce the initial hot feeling, the second
preheating period P3
may further include the third preheating maintenance period P34 in which the
fifth
target temperature T5 is maintained.
[199] FIG. 10B is a flowchart illustrating an operating method of an
aerosol generating
device, according to another embodiment considering a humidity state of a
cigarette.
[200] The embodiment illustrated in FIG. 10B is different from the
embodiment illustrated
in FIG. 10A in which a humidity state of a cigarette is determined by using a
tem-
perature sensor, only in that the humidity state of the cigarette is
determined by using a
humidity detection sensor, and the other configurations are substantially the
same.
Hereinafter, redundant descriptions of the same components are omitted, and a
difference therebetween is mainly described.
[201] Referring to FIGS. 6 to 10B, the operating method of the aerosol
generating device
may include step S110 of heating the cigarette 2000 by using the heater 650,
step S210
of measuring humidity of the cigarette 2000 by using the humidity detection
sensor
628, step S310 of determining a humidity state of the cigarette 2000 by
comparing the
measured humidity of the cigarette 2000 with a preset threshold, steps S411
and S421
of selecting a temperature profile corresponding to the determined humidity
state of the
cigarette 2000, and step S510 of operating the heater 650 with the selected
temperature
profile.
[202] Specifically, in step S210 of measuring the humidity of the cigarette
2000 by using
the humidity detection sensor 628, the controller 610 may determine the
humidity state
of the cigarette 2000 by using the humidity detection sensor 628. According to
an em-
bodiment, the humidity detection sensor 628 may directly measure the amount of
moisture included in the cigarette 2000 and provide the measured humidity in-
formation to the controller 610. For example, the humidity detection sensor
628 may
be in the accommodation passage 1004h (in FIG. 7A) of the aerosol generating
device
600. According to another embodiment, the humidity detection sensor 628 may
measure the amount of moisture condensed around the cigarette after the
cigarette 2 of
CA 03220667 2023- 11- 28
29
FIG. 2 is heated. When heated, moisture evaporation of the excessively moist
cigarette
may be more than moisture evaporation of a normal cigarette. Due to this, when
heated, dew condensation may occur more in the excessively moist cigarette
than in
the normal cigarette. For example, the humidity detection sensor 628 may be
around
the outer hole 1002p of FIG. 7A overlapping the accommodation passage 1004h
(in
FIG. 7A) of the aerosol generating device 600 or may be in the door 1003 of
FIG. 7A.
[203] The humidity detection sensor 628 may be any one of an electrical
resistance sensor,
a capacitance sensor, and an optical sensor. However, this is an example, and
the
humidity detection sensor 628 is not limited thereto.
[204] In step S310 of determining the humidity state of the cigarette 2000
by comparing
the measured humidity of the cigarette 2000 with the preset threshold, the
controller
610 may determine the cigarette 2000 as a normal cigarette when the measured
humidity of the cigarette 2000 is less than the threshold, and may determine
the
cigarette 2000 as an excessively moist cigarette when the measured humidity of
the
cigarette 2000 is greater than or equal to the threshold. In this case, the
preset threshold
may be the least humidity by which a user may feel hot due to the moisture
included in
the cigarette 2000 when the user inhales an aerosol.
[205] In steps S411 and S421 of selecting a temperature profile
corresponding to the de-
termined humidity state of the cigarette 2000, the controller 610 may select
the basic
temperature profile TP when the measured humidity of the cigarette 2000 is
less than
the threshold, and may select the first correction profile CP1 when the
measured
humidity of the cigarette 2000 is greater than or equal to the threshold.
[206] In step S510 of operating the heater 650 with the selected
temperature profile, the
controller 610 may supply power to the heater 650 according to the basic
temperature
profile TP when the measured humidity of the cigarette 2000 is less than the
threshold,
and may supply power to the heater 650 according to the first correction
profile CP1
when the measured humidity of the cigarette 2000 is greater than or equal to
the
threshold.
[207] FIG. 11 is a flowchart illustrating an operating method of an aerosol
generating
device for determining whether a cigarette is continuously used. Hereinafter,
redundant
descriptions previously given with reference to FIGS. 8 to 10B are omitted.
[208] Referring to FIGS. 6 to 11, the operating method of the aerosol
generating device
may include step S1000 of detecting insertion of the cigarette 2000 of FIG.
7A, step
S2000 of checking whether the first correction profile CPI was used when
heating was
made by the heater 650 immediately before, step S3000 of determining whether
the
heater 650 is continuously used, steps S4100 and S4200 of selecting a
temperature
profile corresponding to the determined continuous use state of the heater 650
and/or a
humidity state of the cigarette 2000, and step S5000 of operating the heater
650 with
CA 03220667 2023- 11- 28
30
the selected temperature profile.
[209] Specifically, in step S1000 of detecting insertion of the cigarette
2000 of FIG. 7A,
the controller 610 may detect the insertion of the cigarette 2000 by using the
insertion
detection sensor 624.
[210] In step S2000 of checking whether the first correction profile CP1
was used when
heating was made by the heater 650 immediately before, the controller 610 may
check
whether the first correction profile CP1 was used when heating was made by the
heater
650 immediately before, on the basis of a temperature profile use history
stored in the
memory 670.
[211] In step S3000 of determining whether the heater 650 is continuously
used, the
controller 610 may determine whether the heater 650 is being used continuously
(or re-
peatedly). For example, the controller 610 may determine whether the heater
650 is
being used continuously (or repeatedly) by using the temperature sensor 622 or
by
comparing an interval between an end of the previous smoking event and a start
of the
current smoking event with a preset time.
[212] In steps S4100 and S4200 of selecting a temperature profile
corresponding to the de-
termined continuous use state of the heater 650 and/or the humidity state of
the
cigarette 2000, and in step S5000 of operating the heater 650 with the
selected tem-
perature profile, the controller 610 may determine again the humidity state of
the
cigarettes 2000 when it is determined that the use is not continuous. For
example, the
controller 610 may determine the humidity state of the cigarette 2000 by using
the tem-
perature sensor 622 or the humidity detection sensor 628. The controller 610
may
supply power to the heater 650 according to the basic temperature profile TP
when the
cigarette 2000 is determined as a normal cigarette according to the humidity
state of
the cigarette 2000, and may supply power to the heater 650 according to the
first
correction profile CP1 when the cigarette 2000 is determined as an excessively
moist
cigarette according to the humidity state of the cigarette 2000. In addition,
when it is
determined that the use is continuous, the controller 610 may select the
second
correction profile CP2 and supply power to the heater 650 according to the
second
correction profile CP2.
[213] In this way, the aerosol generating device 600 of the present
disclosure may select a
temperature profile corresponding to each of the humidity state and continuous
use of
the cigarette 2000, on the basis of the humidity state and/or the continuous
use of the
cigarette 2000 and may operate the heater 650 according to the selected
temperature
profile. Accordingly, the aerosol generating device 600 may reduce the hot
feeling of
main stream smoke and increase the amount of atomization.
[214] Those of ordinary skill in the art related to the present embodiments
may understand
that various changes in form and details can be made therein without departing
from
CA 03220667 2023- 11- 28
3 1
the scope of the characteristics described above. Therefore, the disclosed
methods
should be considered in a descriptive point of view, not a restrictive point
of view. The
scope of the present disclosure is defined by the appended claims rather than
by the
foregoing description, and all differences within the scope of equivalents
thereof
should be construed as being included in the present disclosure.
CA 03220667 2023- 11- 28
