Aerosol-generating device

Abstract

An aerosol-generating device comprises: a body including an insertion space for accommodating an aerosol-generating article; a heater for generating heat to heat the aerosol-generating article accommodated in the insertion space; a first heat insulating part surrounding at least a portion of the heater and blocking the heat generated by the heater from being transferred to a user; and a bracket disposed to be spaced apart from the heater and supporting the first heat insulating part, wherein the first heat insulating part comprises a first heat conductive layer for dispersing the heat absorbed from the heater through heat conduction, and a first heat blocking layer for blocking the heat transferred to the first heat conductive layer from being transferred to the outside so that the heat can continuously stay in the first heat conductive layer.

Description

Aerosol generating device

[0001] Various embodiments of the present disclosure relate to an aerosol generating device, and more particularly, to an aerosol generating device having an insulating structure.

[0002] Recently, there has been a growing demand for alternative methods that overcome the shortcomings of conventional cigarettes. For example, there is a growing demand for systems that generate aerosol by heating cigarettes or aerosol-generating materials using an aerosol generator, rather than by burning cigarettes to produce aerosol. Accordingly, research into heated aerosol generators is actively underway.

[0003] An aerosol generating device that generates aerosol by generating heat includes a heater that generates heat. When the heater temperature rises, the user holding the aerosol generating device may feel hot. To prevent the heat generated by the heater from being transferred to the user, a structure for insulating the area around the heater is required.

[0004] Embodiments provide an aerosol generating device in which an insulating structure is disposed around a heater.

[0005] The problems to be solved through the embodiments are not limited to the problems described above, and problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the embodiments belong from this specification and the attached drawings.

[0006] An aerosol generating device according to one embodiment may include a body including an insertion space for accommodating an aerosol generating article, a heater for generating heat to heat the aerosol generating article accommodated in the insertion space, a first thermal insulation part surrounding at least a portion of the heater and blocking heat generated by the heater from being transferred to a user, and a bracket disposed spaced apart from the heater and for supporting the first thermal insulation part, wherein the first thermal insulation part may include a first heat-conducting layer for dispersing heat absorbed from the heater through heat conduction, and a first heat-blocking layer for blocking heat transferred to the first heat-conducting layer from being transferred to the outside so that the heat can continue to remain in the first heat-conducting layer.

[0007] According to the aerosol generating device according to the embodiments, heat can be prevented from being transferred to the outside of the aerosol generating device, thereby protecting the hands of a user using the aerosol generating device from heat.

[0008] Additionally, according to the aerosol generating device according to the embodiments, it is possible to prevent a specific part of the aerosol generating device from becoming excessively hot compared to other parts.

[0009] The effects of the embodiments are not limited to the effects described above, and effects not mentioned can be clearly understood by a person having ordinary skill in the art to which the embodiments belong from this specification and the attached drawings.

[0010] FIGS. 1A to 1C illustrate aerosol generating devices according to various embodiments of the present disclosure.

[0011] FIGS. 2A and 2B illustrate an aerosol generating device according to other embodiments of the present disclosure.

[0012] FIGS. 3A and 3B illustrate an aerosol generating device according to further embodiments of the present disclosure.

[0013] FIG. 4 is a cross-sectional view of an aerosol generating device according to one embodiment to which an example of an insulating structure is applied.

[0014] Figure 5 illustrates another example of an insulating structure.

[0015] Figure 6a is a perspective view of an aerosol generating device according to one embodiment.

[0016] FIG. 6b is an exploded cross-sectional view of an aerosol generating device according to one embodiment, taken along the cross-sectional line A-A' shown in FIG. 6a.

[0017] Figure 6c is a cross-sectional view of the combined aerosol generating device illustrated in Figure 6b.

[0018] Figure 7a is a perspective view of an aerosol generating device according to another embodiment.

[0019] FIG. 7b is an exploded cross-sectional view of an aerosol generating device according to another embodiment, taken along the cross-sectional line B-B' shown in FIG. 7a.

[0020] Figure 7c is a cross-sectional view of the combined aerosol generating device illustrated in Figure 7b.

[0021] Figure 8a is a perspective view of an aerosol generating device according to another embodiment.

[0022] FIG. 8b is an exploded cross-sectional view of an aerosol generating device according to another embodiment, taken along the cross-sectional line C-C' shown in FIG. 8a.

[0023] Figure 8c is a cross-sectional view of the combined aerosol generating device illustrated in Figure 8b.

[0024] FIG. 9 is a block diagram of an aerosol generating device according to another embodiment of the present disclosure.

[0025] The terms used in the examples are selected from widely used, current terms, taking into account the functions of the present invention. However, these terms may vary depending on the intentions of those skilled in the art, precedents, the emergence of new technologies, etc. Furthermore, in certain cases, the applicant may arbitrarily select terms, and in such cases, their meanings will be described in detail in the description of the relevant invention. Therefore, the terms used in the present invention should be defined not simply based on their names, but based on their meanings and the overall content of the present invention.

[0026] When a part of the specification is said to "include" a component, this does not exclude other components, but rather implies the inclusion of other components, unless otherwise specifically stated. Furthermore, terms such as "-unit" and "-module" used in the specification refer to a unit that processes at least one function or operation, which may be implemented in hardware, software, or a combination of hardware and software.

[0027] As used herein, when an expression such as "at least one" precedes an array of elements, it modifies the entire array of elements, not just each individual element. For example, the expression "at least one of a, b, and c" should be interpreted to include a, b, c, or a and b, a and c, b and c, or a and b and c.

[0028] In addition, when describing the embodiments disclosed in this specification, if it is determined that a detailed description of a related known technology may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the attached drawings are only intended to facilitate easy understanding of the embodiments disclosed in this specification, and the technical ideas disclosed in this specification are not limited by the attached drawings, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and technical scope of the present disclosure.

[0029] Terms that include ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by these terms. These terms are used solely to distinguish one component from another.

[0030] When a component is referred to as being "connected" or "connected" to another component, it should be understood that it may be directly connected or connected to that other component, but that there may be other components intervening. Conversely, when a component is referred to as being "directly connected" or "connected" to another component, it should be understood that there are no other components intervening.

[0031] Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0032] Below, embodiments of the present disclosure are described in detail with reference to the attached drawings so that those skilled in the art can easily implement them. Regardless of the drawing numbers, identical or similar components are assigned the same reference numerals, and redundant descriptions thereof are omitted.

[0033] The present disclosure may be implemented in a form that can be implemented in the aerosol generating devices of the various embodiments described above, or may be implemented and implemented in various different forms, and is not limited to the embodiments described herein.

[0034] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings.

[0035] FIGS. 1A to 1C illustrate aerosol generating devices according to various embodiments of the present disclosure.

[0036] Referring to FIG. 1A, an aerosol generating device (1) according to embodiments of the present disclosure may include at least one of a power source (11), a control unit (12), a sensor (13), and a heater (18). At least one of the power source (11), the control unit (12), the sensor (13), and the heater (18) may be disposed inside a body (10) of the aerosol generating device (1).

[0037] The body (10) may provide a space opened upwardly to allow a stick (S), which is an aerosol generating material, to be inserted. The space opened upwardly may be referred to as an insertion space. The insertion space may be formed by being recessed toward the interior of the body (10) to a predetermined depth so that at least a portion of the stick (S) can be inserted. The depth of the insertion space may correspond to the length of a region of the stick (S) containing the aerosol generating material and / or medium.

[0038] The lower end of the stick (S) is inserted into the inside of the body (10), and the upper end of the stick (S) can protrude outside the body (10). The user can inhale air by putting the upper end of the stick (S) exposed to the outside in his / her mouth.

[0039] The heater (18) can heat the stick (S). The heater (18) can extend upwardly in the space where the stick (S) is inserted. For example, the heater (18) can include a tubular heating element, a plate-shaped heating element, a needle-shaped heating element, or a rod-shaped heating element. The heater (18) can be inserted into the lower part of the stick (S). The heater (18) can include an electrical resistance heater and / or an induction heater.

[0040] For example, referring to FIG. 1A, the heater (18) may be a resistive heater. For example, the heater (18) may include an electrically conductive track, and the heater (18) may be heated as current flows through the electrically conductive track. The heater (18) may be electrically connected to a power source (11). The heater (18) may be directly heated by receiving current from the power source (11).

[0041] For example, the heater (18) may be a multi-heater. The heater (18) may include a first heater and a second heater. The first and second heaters may be arranged side by side along the length direction. The first and second heaters may be heated sequentially or simultaneously.

[0042] For example, referring to FIG. 1B, the aerosol generating device (1) may include an induction coil (181) surrounding a heater (18). The induction coil (181) may heat the heater (18). The heater (18) may be a susceptor, and the heater (18) may be heated by a magnetic field generated by an AC current flowing through the induction coil (181). The magnetic field may penetrate the heater (18) and generate an eddy current within the heater (18). The current may generate heat in the heater (18).

[0043] For example, referring to FIG. 1c, a susceptor (SS) may be included inside the stick (S), and the susceptor (SS) inside the stick (S) may be heated by a magnetic field generated by an AC current flowing through an induction coil (181). The susceptor (SS) may be disposed inside the stick (S) and may not be electrically connected to the aerosol generating device (1). The susceptor (SS) may be inserted into the insertion space together with the stick (S) and may be removed from the insertion space together with the stick (S). The stick (S) may be heated by the susceptor (SS) inside the stick (S). At this time, the aerosol generating device (1) may not be equipped with a heater (18).

[0044] The power source (11) can supply power to operate components of the aerosol generating device (1). The power source (11) can be referred to as a battery. The power source (11) can supply power to at least one of the control unit (12), the sensor (13), and the heater (18). When the aerosol generating device (1) includes an induction coil (181), the power source (11) can supply power to the induction coil (181).

[0045] The control unit (12) can control the overall operation of the aerosol generating device (1). The control unit can be mounted on a printed circuit board (PCB). The control unit (12) can control the operation of at least one of the power supply (11), the sensor (13), and the heater (18). The control unit (12) can control the operation of the induction coil (181). The control unit (12) can control the operation of the display, motor, etc. installed in the aerosol generating device (1). The control unit (12) can check the status of each component of the aerosol generating device (1) to determine whether the aerosol generating device (1) is in an operable state.

[0046] The control unit (12) can analyze the results detected by the sensor (13) and control the processes to be performed thereafter. For example, the control unit (12) can control the power supplied to the heater (18) so that the operation of the heater (18) is started or ended based on the results detected by the sensor (13). For example, the control unit (12) can control the amount of power supplied to the heater (18) and the time for which the power is supplied so that the heater (18) can be heated to a predetermined temperature or maintained at an appropriate temperature based on the results detected by the sensor (13).

[0047] The sensor (13) may include at least one of a temperature sensor, a puff sensor, an insertion detection sensor, and an acceleration sensor. For example, the sensor (13) may sense at least one of the temperature of the heater (18), the temperature of the power source (11), and the temperature inside and outside the body (10). For example, the sensor (13) may sense the user's puff. For example, the sensor (13) may sense whether the stick (S) is inserted into the insertion space. For example, the sensor (13) may sense the movement of the aerosol generating device (1).

[0048] FIGS. 2A and 2B illustrate an aerosol generating device according to other embodiments of the present disclosure.

[0049] At least one of the components of the aerosol generating device (1) illustrated in FIGS. 2a and 2b may be identical or similar to at least one of the components of the aerosol generating device (1) illustrated in FIGS. 1a to 1c, and any redundant description thereof will be omitted below.

[0050] Referring to FIG. 2A, the heater (18) may extend upwardly around the space into which the stick (S) is inserted. For example, the heater (18) may be in the form of a tube having a hollow interior. The heater (18) may be positioned around the periphery of the insertion space. The heater (18) may be positioned to surround at least a portion of the insertion space. The heater (18) may heat the insertion space or the outside of the stick (S) inserted into the insertion space. The heater (18) may include an electrical resistance heater and / or an induction heater.

[0051] Referring to FIG. 2b, the aerosol generating device (1) may include an induction coil (181) surrounding a heater (18). Since the content regarding the induction coil (181) is the same as described above, a description of the induction coil (181) will be omitted.

[0052] FIGS. 3A and 3B illustrate an aerosol generating device according to further embodiments of the present disclosure.

[0053] At least one of the components of the aerosol generating device (1) illustrated in FIGS. 3a and 3b may be identical or similar to at least one of the components of the aerosol generating device (1) illustrated in FIGS. 1a to 1c, and any redundant description thereof will be omitted below.

[0054] Referring to FIG. 3a, the aerosol generating device (1) may further include a cartridge (19).

[0055] The cartridge (19) may contain an aerosol-generating substance in any one of a liquid, solid, gaseous, or gel state. The aerosol-generating substance may comprise a liquid composition. For example, the liquid composition may be a liquid comprising a tobacco-containing substance including volatile tobacco flavoring components, or may be a liquid comprising a non-tobacco substance.

[0056] For example, the liquid composition may include water, a solvent, ethanol, a plant extract, a fragrance, a flavoring agent, or a vitamin mixture. The flavoring agent may include, but is not limited to, menthol, peppermint oil, spearmint oil, and various fruit-flavored ingredients. The flavoring agent may include ingredients that can provide a variety of flavors or tastes to the user. The vitamin mixture may include, but is not limited to, a mixture of at least one of vitamin A, vitamin B, vitamin C, and vitamin E. Additionally, the liquid composition may include an aerosol-forming agent such as glycerin and propylene glycol.

[0057] The cartridge (19) may be formed integrally with the body (10) or may be detachably coupled to the body (10). For example, the cartridge (19) may be mounted on the body (10) by being inserted into the body (10). However, the present invention is not limited thereto, and may be fixed so as not to be detached by the user.

[0058] The cartridge may be mounted on the main body while containing an aerosol-generating substance inside. However, this is not limited to the above, and the aerosol-generating substance may be injected into the cartridge while the cartridge is attached to the main body.

[0059] Referring to Fig. 3a, the cartridge (19) is formed integrally with the body (10) and can communicate with the insertion space through an airflow channel (CN).

[0060] Referring to FIG. 3b, a space is formed on one side of the body (10), and at least a portion of the cartridge (19) is inserted into the space formed on one side of the body (10) so that the cartridge (19) can be mounted on the body (10). The airflow channel (CN) can be defined by a portion of the cartridge and / or a portion of the body (10), and the cartridge (19) can communicate with the insertion space through the airflow channel (CN).

[0061] Meanwhile, the aerosol generating device (1) illustrated in FIG. 3a is illustrated with components arranged in a row. The aerosol generating device (1) illustrated in FIG. 3b is illustrated with a cartridge (19) and a heater (18) arranged in parallel. However, the internal structure of the aerosol generating device (1) is not limited to that illustrated. In other words, depending on the design of the aerosol generating device (1), the arrangement of the power source (11), the control unit (12), the sensor (13), the heater (18), and the cartridge (19) may be changed.

[0062] The body (10) can be formed in a structure in which outside air can flow into the interior of the body (10) while the cartridge (19) is inserted. At this time, the outside air flowing into the body (10) can pass through the cartridge (19) and flow into the user's oral cavity.

[0063] The cartridge (19) may include a storage portion (C0) containing an aerosol generating material and / or a heater (24) for heating the aerosol generating material in the storage portion (C0). A liquid delivery means impregnating (containing) the aerosol generating material may be disposed inside the storage portion (C0). Here, the liquid delivery means may include a wick such as cotton fiber, ceramic fiber, glass fiber, porous ceramic, etc. The electrically conductive track of the heater (24) may be formed in a coil-shaped structure that winds the liquid delivery means or a structure that contacts one side of the liquid delivery means. The heater (24) may be referred to as a cartridge heater (24).

[0064] The cartridge (19) can perform the function of generating an aerosol by converting the phase of an aerosol generating substance inside the cartridge into a gas phase by operating with an electric signal or wireless signal transmitted from the body (10). In this case, the aerosol may mean a gas in a mixed state of vaporized particles and air generated from the aerosol generating substance.

[0065] An aerosol can be generated as the liquid delivery means and the liquid composition absorbed therein are heated by the cartridge heater (24). At this time, the aerosol can also be generated by heating the stick (S) by the heater (18). Tobacco material can be added to the aerosol while the aerosol generated by the cartridge heater (24) and the heater (18) passes through the stick (S), and the aerosol added with the tobacco material can be inhaled into the user's oral cavity through one end of the stick (S).

[0066] The aerosol generating device (1) may be equipped with only a cartridge heater (24) and the body (10) may not be equipped with a heater (18). In this case, the aerosol generated by the cartridge heater (24) may pass through the stick (S) and be mixed with tobacco material and inhaled into the user's mouth.

[0067] The aerosol generating device (1) may include a cap (not shown). The cap may be detachably coupled to the body (10) so as to cover at least a portion of a cartridge (19) coupled to the body (10). A stick (S) may be inserted into the body (10) through the cap.

[0068] The power source (11) can supply power to the cartridge (24) in addition to the aforementioned configuration. The control unit (12) can control the operation of the cartridge (19) in addition to the aforementioned configuration. The control unit (12) can control the power supplied to the cartridge heater (24) so ​​that the operation of the cartridge heater (24) and / or the heater (18) is started or ended based on the result detected by the sensor (13). For example, the control unit (12) can control the amount of power supplied to the cartridge heater (24) and the time for which the power is supplied so that the cartridge heater (24) can be heated to a predetermined temperature or maintained at an appropriate temperature based on the result detected by the sensor (13).

[0069] In addition to the aforementioned configuration, the sensor (13) may further include at least one of a color sensor, a cartridge detection sensor, and a cap detection sensor. For example, the sensor (13) may sense the temperature of the cartridge heater (24). For example, the sensor (13) may sense the color of a portion of the wrapper surrounding the outside of the stick (S). For example, the sensor (13) may sense whether the cartridge (19) is mounted. For example, the sensor (13) may sense whether the cap is mounted.

[0070] Meanwhile, the aerosol generating device (1) may further include general-purpose components in addition to the power source (11), control unit (12), sensor (13), heater (18), and cartridge (19). For example, as mentioned above, the aerosol generating device (1) may include a display capable of outputting visual information and / or a motor for outputting tactile information. In addition, the aerosol generating device (1) may be manufactured in a structure in which external air can be introduced or internal gas can be discharged even when the stick (S) is inserted.

[0071] Although not shown in the drawing, the aerosol generating device (1) may also be configured as a system with a separate cradle. For example, the cradle may be used to charge the power supply (11) of the aerosol generating device (1). Alternatively, the heater (18) may be heated while the cradle and the aerosol generating device (1) are combined.

[0072] The stick (S) may be similar to a typical combustion cigarette. For example, the stick (S) may be divided into a first part (S1) containing an aerosol generating substance and a second part (S2) containing a filter or the like.

[0073] The first portion (S1) may be formed as a sheet, a strand, or a tobacco sheet cut into small pieces. Furthermore, the first portion (S1) may be surrounded by a heat-conducting material. For example, the heat-conducting material may be, but is not limited to, a metal foil such as aluminum foil. The first portion (S1) may be referred to as a "medium portion" or a "tobacco rod" hereinafter.

[0074] The second portion (S2) may be a cellulose acetate filter. The second portion (S2) may be composed of at least one segment. For example, the second portion (S2) may include a first segment that cools the aerosol and a second segment that filters a predetermined component contained within the aerosol. The second portion (S2) may be referred to as a "filter rod" hereinafter.

[0075] Depending on the embodiment, the second portion (S2) of the stick (S) may also contain an aerosol generating substance. For example, an aerosol generating substance in the form of granules or capsules may be inserted into the second portion (S2).

[0076] The entire first part (S1) may be inserted into the aerosol generating device (1), and the second part (S2) may be exposed to the outside. Alternatively, only a part of the first part (S1) may be inserted into the aerosol generating device (1), or the entire first part (S1) and a part of the second part (S2) may be inserted. The user may inhale the aerosol while holding the second part (S2) in his / her mouth. At this time, the aerosol is generated as the outside air passes through the first part (S1), and the generated aerosol passes through the second part (S2) and is delivered to the user's mouth.

[0077] FIG. 4 is a cross-sectional view of an aerosol generating device according to one embodiment to which an example of an insulating structure is applied.

[0078] Referring to FIG. 4, an aerosol generating device according to one embodiment may include a body (1100), a heater assembly (1200), a bracket (1500), and an insulation member (1700).

[0079] The body (1100) forms the overall appearance of the aerosol generating device (1) and may include an internal space in which components of the aerosol generating device (1) may be arranged. In the drawing, only an embodiment in which the body (1100) is formed as a square pillar is shown, but the shape of the body (1100) is not limited thereto, and for example, the body (1100) may be formed as an overall cylindrical shape or a polygonal pillar shape.

[0080] The body (1100) may include an opening through which an aerosol generating article (S) may be inserted into the interior of the body (1100). At least a portion of the aerosol generating article (S) may be inserted or accommodated into the interior of the body (1100) through the opening.

[0081] The body (1100) may include an insertion space (1100i) for accommodating an aerosol generating article (S) therein. The insertion space (1100i) may be formed at the upper portion of the body (1100). The insertion space (1100i) may be opened upward and connected to the opening.

[0082] The insertion space (1100i) may have a cylindrical shape that extends vertically. At least a portion of the aerosol generating article (S) may be accommodated inside the body (1100) through an opening at the upper side of the insertion space (1100i). At this time, the depth of the insertion space (1100i) of the aerosol generating article (S) may correspond to the length of the region containing the aerosol generating material or medium in the aerosol generating article (S).

[0083] The heater assembly (1200) is located in the internal space of the body (1100) and can generate an aerosol by heating an aerosol generating article (S) inserted into the interior of the housing through an opening.

[0084] The heater assembly (1200) may include a heater (1210) that generates heat when power is supplied, and a support member, cover, etc. around the heater (1210). In FIG. 4, only the heater (1210) and cover (1250) are briefly illustrated.

[0085] The heater (1210) is configured to generate heat to heat an aerosol generating article (S) accommodated in the insertion space (1100i). The heater (1210) can generate aerosol from the aerosol generating article (S). The heater (1210) can extend vertically along the insertion space (1100i).

[0086] In one embodiment, as an example, the heater (1210) may be a cylindrical heater (1210) surrounding at least a portion of the insertion space (1100i). The heater (1210) may heat the outer surface of the aerosol generating article (S) accommodated in the insertion space (1100i). In this case, the heater (1210) may be an electrical resistance heater.

[0087] However, the embodiment is not limited to the shape and arrangement of the heater (1210). As another example, the heater (1210) may be inserted into the interior of the aerosol generating article (S) to heat the interior of the aerosol generating article (S) accommodated in the insertion space (1100i).

[0088] As another example, the heater assembly (1200) includes an induction coil (not shown) that generates an induced magnetic field toward the heater (1210), wherein the heater (1210) may be a susceptor that generates heat by the induced magnetic field.

[0089] At least one area of ​​an aerosol generating article (S) accommodated in an insertion space (1100i) can be heated by a heater (1210), and vaporized particles generated by heating the aerosol generating article (S) and air introduced into the internal space of the body (1100) through an air inlet (e.g., an opening of the body (1100)) formed in one area of ​​the body (1100) can be mixed to generate an aerosol.

[0090] Meanwhile, the heater (1210) may be a cartridge heater (e.g., the cartridge heater (24) of FIGS. 3a and 3b). In this case, the aerosol generating article (S) may be a cartridge (19) of FIGS. 3a and 3b rather than a cigarette or a stick.

[0091] The cover (1250) forms a part of the exterior of the heater assembly (1200) (e.g., the outer surface of the heater assembly (1200)) and can perform the function of accommodating and protecting components of the heater assembly (1200).

[0092] The cover (1250) may include an insertion space (1100i) for accommodating an aerosol generating article (S). In this case, the insertion space (1100i) may be a space surrounded by the cover (1250) as well as a space surrounded by a heater (1210) disposed inside the cover (1250).

[0093] The cover (1250) may surround the heater (1210). The cover (1250) may be opened in the longitudinal direction of the heater (1210) (e.g., in the z-axis direction). Accordingly, the cover (1250) may include a cylindrical shape that is open in the z-axis direction.

[0094] The cover (1250) can block heat generated from the heater (1210) from being transmitted to the outside. To increase the efficiency of insulation, the cover (1250) can be positioned away from the outside of the heater (1210). The space between the cover (1250) and the heater (1210) can be referred to as a first insulation space (G1).

[0095] The first insulating space (G1) may be placed in a vacuum state to minimize heat transfer to the outside of the aerosol generating device (1). Here, the term "vacuum state" does not only refer to a state in which there is no air at all, but may also include a state in which the pressure is lower than the surrounding atmospheric pressure. However, the embodiment is not limited to a vacuum state. Depending on the embodiment, the first insulating space (G1) may be filled with air.

[0096] The bracket (1500) is configured to support the heater assembly (1200). The bracket (1500) can also block heat generated from the heater (1210) or the heater assembly (1200) from being transmitted to the outside. The bracket (1500) can be made of a plastic material that does not conduct heat well or a metal material whose surface is coated with a heat-blocking material.

[0097] To increase the efficiency of insulation, the bracket (1500) may be positioned apart from the outside of the heater assembly (1200). That is, the bracket (1500) may be positioned apart from the cover (1250). If the heater assembly (1200) consists only of the heater (1210), the bracket (1500) may be positioned apart from the heater (1210).

[0098] The space between the bracket (1500) and the heater assembly (1200) may be referred to as a second insulating space (G2). The second insulating space (G2) may be placed in a vacuum state to minimize heat transfer to the outside of the aerosol generating device (1). However, the embodiment is not limited to a vacuum state. In some cases, the second insulating space (G2) may be filled with air. Meanwhile, the distance between the bracket (1500) and the heater assembly (1200) may be about 0.2 cm to 1 cm. However, the embodiment is not limited to this range.

[0099] The insulation (1700) surrounds at least a portion of the heater (1210) or the heater assembly (1200), and is configured to block heat generated from the heater (1210) from being transmitted to the user.

[0100] The insulation (1700) may be coupled to the bracket (1500). As illustrated, the insulation (1700) may be coupled to the outer surface of the bracket (1500). Accordingly, the bracket (1500) may support the insulation (1700). However, the embodiment is not limited to what is illustrated. As another example, the insulation (1700) may be coupled to the inner surface of the bracket (1500).

[0101] To increase the efficiency of insulation, the insulation part (1700) may be arranged spaced apart from the inner surface of the body (1100). The space between the insulation part (1700) and the inner surface of the body (1100) may be referred to as a third insulation space (G3). The third insulation space (G3) may be placed in a vacuum state so as to minimize heat transfer to the outside of the aerosol generating device (1). However, the embodiment is not limited to a vacuum state. In some cases, the third insulation space (G3) may be filled with air. Meanwhile, the distance between the insulation part (1700) and the inner surface of the body (1100) may be about 0.1 cm to 0.5 cm. However, the embodiment is not limited to this range.

[0102] The insulation (1700) may include a heat conductive layer (1710) and a heat barrier layer (1720). The heat conductive layer (1710) absorbs heat generated from the heater (1210) or the heater assembly (1200) and disperses the absorbed heat through heat conduction. The heat barrier layer (1720) blocks heat generated from the heater (1210) or the heater assembly (1200).

[0103] Before specifically describing the thermal conductive layer (1710) and the thermal barrier layer (1720), the heater (1210) may not be heated uniformly and there may be temperature differences in each section. In other words, the degree of heat radiated may vary in each section of the heater (1210).

[0104] If a part of the heater (1210) that emits a relatively large amount of heat is called a 'high-temperature part of the heater' and another part of the heater (1210) that emits a relatively small amount of heat is called a 'low-temperature part of the heater', then inside the aerosol generating device (1), a part adjacent to the high-temperature part of the heater (1210) will be heated hotter than a part adjacent to the low-temperature part of the heater (1210).

[0105] Accordingly, a specific area inside the aerosol generating device (1) may become excessively hot. A specific area that becomes excessively hot may be referred to as a hot spot. In other words, a hot spot may occur inside the aerosol generating device (1). A hot spot may cause a failure of a component or part inside the device.

[0106] Hot spots can also affect the exterior of the body (1100). Specifically, hot spots can emit more heat than other parts. Therefore, conventional insulation structures have limitations in blocking all heat emitted from the hot spots. Heat that is not blocked inside the aerosol generating device (1) can be emitted to the exterior of the device, causing a portion of the body (1100) adjacent to the hot spot to become hot. As a result, the user may feel that a specific portion of the body (1100) is excessively hot. Furthermore, as the heat spreads along the body (1100) over time, the overall external temperature of the body (1100) may eventually rise.

[0107] In order to prevent this phenomenon, it is necessary to block heat from being emitted to the outside of the body (1100) and to evenly distribute the heat inside the aerosol generating device (1) to prevent the occurrence of hot spots.

[0108] The thermal conductive layer (1710) can absorb heat generated from the heater (1210) or heater assembly (1200) and spread the heat across the entire surface of the thermal conductive layer (1710) through thermal conduction. That is, the heat absorbed by the thermal conductive layer (1710) can be conducted across the entire surface of the thermal conductive layer (1710) along the thermal conductive layer (1710). As a result, the heat can be distributed across a wide area within the aerosol generating device (1).

[0109] Since the thermal conductive layer (1710) is arranged to surround the heater (1210) or the heater assembly (1200), one part of the thermal conductive layer (1710) may be adjacent to a high-temperature portion of the heater (1210), and another part of the thermal conductive layer (1710) may be adjacent to a low-temperature portion of the heater (1210). That is, when the thermal conductive layer (1710) absorbs heat from the heater (1210), the heat may be absorbed unevenly across the entire thermal conductive layer (1710). Accordingly, one part of the thermal conductive layer (1710) may have a relatively high temperature, and another part of the thermal conductive layer (1710) may have a relatively low temperature.

[0110] However, depending on the thermal conductivity characteristics, heat moves from a high temperature area to a low temperature area and is distributed throughout the entire thermal conductive layer (1710), so that heat emitted from the thermal conductive layer (1710) can be uniformly emitted throughout the entire area of ​​the thermal conductive layer (1710).

[0111] Meanwhile, the amount of heat released from the heater (1210) or heater assembly (1200) is generally greater than the amount of heat released from the heat-conductive layer (1710). Accordingly, before the heat is distributed throughout the heat-conductive layer (1710), the heat-conductive layer (1710) can absorb the heat newly released from the heater assembly (1200).

[0112] At this time, in a portion of the heat-conducting layer (1710) adjacent to the high temperature portion of the heater (1210), the rate at which heat is absorbed into the heat-conducting layer (1710) may be faster than the rate at which heat is distributed along the heat-conducting layer (1710). Accordingly, the temperature of the portion may become relatively higher than that of other portions of the heat-conducting layer (1710). That is, despite the arrangement of the heat-conducting layer (1710), a hot spot may occur. In order to prevent the occurrence of a hot spot, sufficient time must be secured for heat to be distributed throughout the heat-conducting layer (1710).

[0113] To ensure that the thermal conductive layer (1710) has time to evenly distribute heat, a thermal barrier layer (1720) may be placed. The thermal barrier layer (1720) may be placed adjacent to and facing the thermal conductive layer (1710). Specifically, the thermal barrier layer (1720) may be placed so as to be in contact with the thermal conductive layer (1710).

[0114] The thermal conductive layer (1710) and the thermal barrier layer (1720) may be sequentially arranged in a direction from the inside to the outside of the body (1100). That is, the thermal barrier layer (1720) may be arranged closer to the outside of the body (1100) than the thermal conductive layer (1710), and the thermal conductive layer (1710) may be arranged closer to the inside of the body (1100) than the thermal barrier layer (1720).

[0115] The thermal barrier layer (1720) can block heat emitted from the thermal conductive layer (1710) from being transferred to the outside. Specifically, the thermal barrier layer (1720) can block heat transferred from the heater (1210) or the heater assembly (1200) to the thermal conductive layer (1710) from being transferred to the outside so that the heat can remain in the thermal conductive layer (1710). When the movement of heat is blocked by the thermal barrier layer (1720), the heat can be distributed along the thermal conductive layer (1710) that is in contact with the thermal barrier layer (1720).

[0116] Even if the thermal barrier layer (1720) cannot completely block the heat emitted from the thermal conductive layer (1710), the heat partially blocked by the thermal barrier layer (1720) remains in the thermal conductive layer (1710), so that the heat can be dispersed across the entire surface of the thermal conductive layer (1710). That is, due to the presence of the thermal barrier layer (1720), the thermal conductive layer (1710) can secure time to disperse the heat across the entire surface.

[0117] In summary, the insulation (1700) can fundamentally prevent heat from escaping to the outside of the aerosol generating device (1) through the thermal barrier layer (1720). Furthermore, even if the insulation (1700) cannot prevent some of the heat from escaping, it can disperse the heat throughout the device through the thermal conductive layer (1710). Accordingly, the insulation (1700) can prevent hot spots from forming, and ultimately, can prevent the body (1100) from becoming hot due to hot spots.

[0118] The thermal conductive layer (1710) may include various materials with high thermal conductivity. The thermal barrier layer (1720) may include various materials with excellent insulation effect. As illustrated, the thermal conductive layer (1710) and the thermal barrier layer (1720) may each be formed in the form of a film or tape. One side of the thermal conductive layer (1710) may be attached to the outer surface of the bracket (1500), and one side of the thermal barrier layer (1720) may be attached to the other side of the thermal conductive layer (1710). However, the structure and shape of the thermal conductive layer (1710) and the thermal barrier layer (1720) are not limited to those illustrated.

[0119] Figure 5 illustrates another example of an insulating structure.

[0120] Referring to FIG. 5, an aerosol generating device (1) according to one embodiment may include a body (1100), a heater assembly (1200), a bracket (1500), a first insulation part (1700), and a second insulation part (1800).

[0121] At least one of the components of the aerosol generating device (1) illustrated in FIG. 5 may be identical or similar to at least one of the components of the aerosol generating device (1) illustrated in FIG. 4, and any redundant description thereof will be omitted below.

[0122] Compared to FIG. 4, the aerosol generating device (1) of FIG. 5 may include two insulating parts (1700, 1800). The first insulating part (1700) may be coupled to the bracket (1500). The second insulating part (1800) may be coupled to the first insulating part (1700).

[0123] The second insulation part (1800) may be positioned on the outside of the first insulation part (1700). In other words, the second insulation part (1800) may be positioned closer to the outside of the body (1100) than the first insulation part (1700).

[0124] Accordingly, the first heat-conducting layer (1710), the first heat-insulating layer (1720), the second heat-conducting layer (1810), and the second heat-insulating layer (1820) can be sequentially arranged in contact with each other in a direction from the inside to the outside of the body (1100).

[0125] The functions of the thermal conductive layer (1710, 1810) and the thermal barrier layer (1720, 1820), which are sub-components of the two insulating parts (1700, 1800), are the same as those described in Fig. 4, so description thereof will be omitted.

[0126] As two insulation units (1700, 1800) are arranged, heat that is not blocked by the first insulation unit (1700) can be blocked by the second insulation unit (1800). At this time, the second insulation unit (1800) can prevent the heat from being transferred to the outside and also distribute the heat to a wide area inside the aerosol generating device (1), thereby preventing the occurrence of hot spots. Accordingly, the insulation effect can be further increased by ensuring that the heat is evenly distributed throughout the aerosol generating device (1).

[0127] Meanwhile, in order to increase insulation efficiency, the heater assembly (1200) and the bracket (1500) may be spaced apart from each other to form a second insulation space (G2), and the inner surface of the second insulation part (1800) and the body (1100) may be spaced apart from each other to form a third insulation space (G3). Descriptions of the second insulation space (G2) and the third insulation space (G3) are the same as those described in FIG. 4, and thus will be omitted.

[0128] Fig. 6a is a perspective view of an aerosol generating device according to one embodiment. Fig. 6b is an exploded cross-sectional view of an aerosol generating device according to one embodiment taken along the cross-sectional line A-A' shown in Fig. 6a. Fig. 6c is a combined cross-sectional view of the aerosol generating device shown in Fig. 6b.

[0129] Referring to FIGS. 6A to 6C, an aerosol generating device (1) according to one embodiment may include a body (1100), a heater assembly (1200), a bracket (1500), a first insulation part (1700), a second insulation part (1800), and a third insulation part (1900).

[0130] At least one of the components of the aerosol generating device (1) illustrated in FIGS. 6a to 6c may be identical or similar to at least one of the components of the aerosol generating device (1) illustrated in FIG. 4, and any redundant description thereof will be omitted below.

[0131] The body (1100) can be separated into a rear housing (1110), a front housing (1120), and an upper housing (1130). Components inside the body (1100) can be located between the rear housing (1110) and the front housing (1120).

[0132] In the manufacturing process of the aerosol generating device (1), after the components inside the body (1100) are combined, the rear housing (1110), the front housing (1120), and the upper housing (1130) can be combined in the finishing stage. At this time, the rear housing (1110) and the front housing (1120) can be combined by approaching each other in a direction transverse to the longitudinal direction of the body (1100) (e.g., the y-axis direction).

[0133] Although not shown, the rear housing (1110) may cover a wider area in the circumferential direction of the body (1100) than the front housing (1120). However, the shapes of the rear housing (1110) and the front housing (1120) are not limited to those shown.

[0134] The heater assembly (1200) may include a heater (1210), an end support (1220), an airflow passage (1230), an inner cover (1240), an outer cover (1250), and an upper joint (1260). The heater (1210) is as described above, so its description will be omitted.

[0135] The end support (1220) may be positioned at the bottom of the heater (1210) to support the lower end of the aerosol generating article (S) inserted into the insertion space (1100i). Although not shown, a sensor may be positioned around the end support (1220). According to an embodiment, the end support (1220) may support one end (e.g., the lower end) of the heater (1210).

[0136] The end support (1220) may include an inlet opening laterally. For example, the inlet may be open in the +y direction. The end support (1220) may include an outlet opening upwardly. For example, the outlet may be open in the +z direction. A passage extending from the inlet to the outlet may be arranged within the end support (1220). Air may move through the passage.

[0137] Air can be introduced into the interior of the end support (1220) through the inlet. Air that has exited the end support (1220) through the outlet can be introduced into the interior of the heater (1210). When an aerosol generating article (S) is inserted into the heater (1210), air that has exited the end support (1220) can be introduced into one end of the aerosol generating article (S).

[0138] The airflow passage (1230) is a configuration that provides a passage for air to pass through. When air is introduced from the outside to the inside of the aerosol generating device (1), the air can be introduced into the airflow passage (1230), and the air that has moved along the airflow passage (1230) can be introduced into the interior of the end support (1220) through the inlet of the end support (1220).

[0139] The airflow passage (1230) may be arranged to face the heater (1210) and the end support (1220). The airflow passage (1230) may be arranged parallel to the heater (1210). The direction in which the airflow passage (1230) extends may be the same as the longitudinal direction of the heater (1210) and the z-axis direction.

[0140] The airflow passage (1230), the end support (1220), and the insertion space (1100i) within the heater (1210) may be fluidly connected. The term "fluidly connected" may mean that the elements are connected so that a fluid, such as air, can flow through them. While the air moves through the airflow passage (1230) and the end support (1220) to the insertion space (1100i) within the heater (1210), the air may move in a "U" shape within the heater assembly (1200).

[0141] Meanwhile, although not shown in the drawing, a separate sensor may be attached to the airflow passage (1230). In this case, the sensor may be placed inside the sensor housing and protected by the sensor housing.

[0142] In one embodiment, a heater assembly (1200) of an aerosol generating device (1) may be provided with two covers (1240, 1250). In this case, the first cover (1240) may be used with the same meaning as the inner cover (1240), and the second cover (1250) may be used with the same meaning as the outer cover (1250). The expressions 'first' and 'second' are used because two covers (1240, 1250) are provided, and in an embodiment, when one cover is provided, the first cover may refer to the one provided cover.

[0143] The inner cover (1240) surrounds the heater (1210) at a predetermined distance from the outer surface of the heater (1210) and is configured to accommodate at least a portion of the heater (1210). The heater (1210) may be primarily protected by the inner cover (1240).

[0144] The inner cover (1240) may support one end (e.g., the lower end) of the heater (1210). In some embodiments, the inner cover (1240) may support one end of the heater (1210) together with the end support (1220).

[0145] A portion of the inner cover (1240) may extend in the longitudinal direction of the heater (1210) (e.g., in the z-axis direction) to surround a portion of the end support (1220) disposed at the bottom of the heater (1210). At this time, an inlet may be disposed in another portion of the end support (1220) that is not surrounded by the inner cover (1240). The airflow passage (1230) may be coupled to another portion of the end support (1220). The inner cover (1240) may be positioned between the heater (1210) and the airflow passage (1230). At this time, a side portion of the airflow passage (1230) may be supported by the inner cover (1240).

[0146] The space between the inner cover (1240) and the heater (1210) may correspond to a first insulating space (G1). In addition, to increase the insulating efficiency, the inner cover (1240) may include one or more grooves (1241) on the outer surface. The interior of the grooves (1241) may be vacuum or filled with air.

[0147] At least a portion of the inner cover (1240) is in contact with the airflow passage (1230), but since there is a groove for insulation between the portions in contact with the airflow passage (1230), heat can be transferred relatively slowly from the inner cover (1240) to the airflow passage (1230). In addition, if the groove is arranged at the portion where the two components are in contact, the contact area between the two components can be reduced, thereby minimizing heat transfer through thermal conduction from one component (e.g., the inner cover (1240)) to another component (e.g., the airflow passage (1230)).

[0148] The outer cover (1250) forms a portion of the exterior of the heater assembly (1200) (e.g., the outer surface of the heater assembly (1200)) and may perform a function of accommodating and protecting components of the heater assembly (1200). For example, the heater (1210), the end support (1220), the airflow passage (1230), and the inner cover (1240) may be accommodated in the outer cover (1250). Accordingly, the heater (1210) may be secondarily protected by the outer cover (1250).

[0149] The outer cover (1250) can support the end support (1220) and the lower end of the inner cover (1240). The outer cover (1250) can support the side surface of the airflow passage (1230). The airflow passage (1230) is positioned between the inner cover (1240) and the outer cover (1250) and can be supported by at least one of the inner cover (1240) and the outer cover (1250).

[0150] That is, the airflow passage (1230) may be arranged on the outer surface of the inner cover (1240) and supported by the inner cover (1240), or may be arranged on the inner surface of the outer cover (1250) and supported by the outer cover (1250). In this case, since the interior of the airflow passage (1230) is an empty space through which air passes, it can function as an insulating space.

[0151] The outer cover (1250) surrounds the inner cover (1240) and may be positioned spaced apart from the outer surface of the inner cover (1240). The space between the inner cover (1240) and the outer cover (1250) may function as an insulating space. The outer cover (1250) may be positioned spaced apart from the bracket (1500). The space between the outer cover (1250) and the bracket (1500) may correspond to a second insulating space (G2).

[0152] The outer cover (1250) can block heat generated from the heater (1210) from being transmitted to the outside. To increase the efficiency of insulation, the outer cover (1250) may include a double-wall structure. Specifically, the outer cover (1250) may include an inner wall (1251) facing the inner cover (1240) and an outer wall (1252) at least a portion of which is spaced apart from the inner wall (1251). The space between the inner wall (1251) and the outer wall (1252) may function as an insulation space.

[0153] The upper coupling portion (1260) is positioned on the upper portion of the heater (1210) and may form a portion of the exterior of the heater assembly (1200) (e.g., an upper wall of the heater assembly (1200)). The upper coupling portion (1260) may be positioned on the lower portion of the upper housing (1130).

[0154] A portion of the upper coupling portion (1260) may be coupled to the heater (1210) and the inner cover (1240). Specifically, a portion of the upper coupling portion (1260) may be coupled to the open end of the heater (1210) and the inner cover (1240). A portion of the upper coupling portion (1260) may be open toward the outside of the aerosol generating device (1) to allow an aerosol generating article to pass through and be received into the insertion space.

[0155] Another portion of the upper coupling portion (1260) may be positioned above the airflow passage portion (1230). Although not shown, another portion of the upper coupling portion (1260) may be opened toward the top of the aerosol generating device (1) to allow air to flow into the airflow passage portion (1230).

[0156] One portion of the upper coupling portion (1260) and another portion thereof may be consequently coupled to the open end of the outer cover (1250). The upper coupling portion (1260) may partially close the open end of the outer cover (1250).

[0157] Another portion of the upper joint (1260) may extend between the outer cover (1250) and the bracket (1500). Another portion of the upper joint (1260) may be engaged between the outer cover (1250) and the bracket (1500) and supported by the outer cover (1250) and the bracket (1500). At this time, the upper joint (1260) may close the second insulating space (G2).

[0158] The bracket (1500) can be separated into a first member (1510) and a second member (1520). Specifically, the first member (1510) has a cylindrical configuration surrounding the heater (1210) or heater assembly (1200). The second member (1520) is configured to be coupled to a side surface of the first member (1510) and one end of the first member (1510) to block an open end of the first member (1510).

[0159] The first member (1510) of the bracket (1500) may be positioned spaced apart from the outer cover (1250). The space between the first member (1510) and the outer cover (1250) may correspond to a second insulating space (G2).

[0160] Additionally, to increase insulation efficiency, the first member (1510) may include one or more grooves (1511) on the outer surface. The interior of the grooves (1511) may be vacuum or filled with air.

[0161] The first member (1510) is in contact with the first insulation part (1700) through several portions, but since there are grooves for insulation between each contact portion, heat can be transferred relatively slowly from the first member (1510) to the first insulation part (1700). In addition, if grooves are arranged at the portion where the two components are in contact, the contact area between the two components can be reduced, thereby minimizing heat transfer through thermal conduction from one component (e.g., the first member (1510)) to another component (e.g., the first insulation part (1700)).

[0162] The second member (1520) of the bracket (1500) can function as a bottom wall of the bracket (1500). The second member (1520) performing the bottom wall function can be engaged with the lower end of the first member (1510) and support the lower end of the outer cover (1250). A portion of the second member (1520) can extend between the first member (1510) and the rear housing (1110). A portion of the second member (1520) can be coupled to a side end of the first member (1510).

[0163] The first insulation part (1700) and the second insulation part (1800) can be sequentially connected to the outer surface of the bracket (1500). At this time, the insulation part (1700, 1800) positioned close to the rear housing (1110) and the insulation part (1700, 1800) positioned close to the front housing (1120) are different from each other.

[0164] First, the thermal barrier layers (1720, 1820) may include a first region (1721, 1821) and a second region (1722, 1822) that are arranged facing each other and separated from each other. The thermal barrier layers (1720, 1820) arranged close to the rear housing (1110) may be referred to as the first region (1721, 1821), and the thermal barrier layers (1720, 1820) arranged close to the front housing (1120) may be referred to as the second region (1722, 1822).

[0165] Regarding the insulation (1700, 1800) positioned close to the front housing (1120), the thermally conductive layers (1710, 1810) may be positioned on the inner side of the second region (1722, 1822) of the heat-insulating layer. Accordingly, the first thermally conductive layer (1710), the second region (1722) of the first thermally conductive layer, the second thermally conductive layer (1810), and the second region (1822) of the second thermally conductive layer may be sequentially positioned in a direction from the inner side toward the outer side of the front housing (1120). This is the same as the structure described above in FIG. 5.

[0166] However, with regard to the insulation portion (1700, 1800) positioned close to the rear housing (1110), no separate heat-conducting layer is positioned. In addition, the first region (1721) of the first heat-insulating layer and the first region (1821) of the second heat-insulating layer are sequentially positioned in a direction from the inside to the outside of the rear housing (1110), but are not positioned to contact each other.

[0167] The first region (1721) of the first heat-insulating layer may be disposed between the outer surface of the first member (1510) of the bracket (1500) and the inner surface of the second member (1520) and supported by the first member (1510). The first region (1821) of the second heat-insulating layer may be disposed on the outer surface of the second member (1520) of the bracket (1500) and supported by the second member (1520). That is, the first region (1721) of the first heat-insulating layer and the first region (1821) of the second heat-insulating layer may be disposed on the inner and outer sides of the second member (1520), respectively, with the second member (1520) of the bracket (1500) interposed therebetween, and may not be disposed adjacent to each other.

[0168] This difference is because the distance from the heater (1210) to the rear housing (1110) is greater than the distance from the heater (1210) to the front housing (1120). Accordingly, more components are arranged between the heater (1210) and the rear housing (1110) than between the heater (1210) and the front housing (1120), so that heat can be absorbed by many components as it moves. The user may feel that the rear housing (1110) is less hot than the front housing (1120).

[0169] That is, the portion close to the rear housing (1110) may have less importance in terms of insulation than the portion close to the front housing (1120). The portion close to the rear housing (1110) can achieve sufficient insulation with only the thermal barrier layer, even without a thermally conductive layer. Furthermore, since no thermally conductive layer is provided, the thermal barrier layers do not need to be in contact with each other.

[0170] Meanwhile, the first region (1821) of the second heat-insulating layer of the second insulation portion (1800) may be positioned spaced apart from the rear housing (1110). The space between the first region (1821) of the second heat-insulating layer and the rear housing (1110) may correspond to a third heat-insulating space (G3).

[0171] The positions of the first insulation part (1700) and the second insulation part (1800) are not limited to those illustrated. Although not illustrated, for example, the first insulation part (1700) may be coupled to the inner surface of the bracket (1500). Specifically, the first insulation part (1700) may be coupled to the inner surface of the first member (1510) of the bracket (1500).

[0172] In this case, the first insulation part (1700) and the second insulation part (1800) are sequentially arranged in a direction from the inside to the outside of the front housing (1120), but are not arranged to contact each other. That is, the first insulation part (1700) and the second insulation part (1800) are arranged on the inside and outside of the first member (1510), respectively, with the first member (1510) of the bracket (1500) interposed therebetween, and may not be arranged adjacent to each other.

[0173] The third insulation part (1900) may be arranged on the outside of the second insulation part (1800). As illustrated, the third insulation part (1900) is arranged close to the front housing (1120), and may be arranged next to the second region (1822) of the second heat-insulating layer (1820) in a direction from the inside to the outside of the front housing (1120).

[0174] Accordingly, the first insulation part (1700), the second insulation part (1800), and the third insulation part (1900) may be sequentially arranged in contact with each other in a direction from the inside to the outside of the body (1100). Meanwhile, the third insulation part (1900) may not be arranged in a part close to the rear housing (1110) where the importance of insulation is relatively low.

[0175] As illustrated, the third insulation part (1900) consists of only one layer. If the third insulation part (1900) includes only one layer, that layer may correspond to a heat-insulating layer. However, the embodiment is not limited to the illustrated embodiment, and the third insulation part (1900) may also include both a heat-conducting layer and a heat-insulating layer.

[0176] Also, as illustrated, the third insulation portion (1900) is in contact with the front housing (1120), but the embodiment is not limited to the illustrated embodiment. According to an embodiment, the third insulation portion (1900) may be positioned spaced apart from the front housing (1120). In this case, the space between the third insulation portion (1900) and the front housing (1120) may correspond to the third insulation space (G3).

[0177] Depending on the embodiment, the third insulation part (1900) may not be arranged. Accordingly, the second insulation part (1800) may be arranged to contact the front housing (1120) or may be arranged spaced apart from the front housing (1120). When the second insulation part (1800) is arranged spaced apart from the front housing (1120), the space between the second insulation part (1800) and the front housing (1120) may correspond to the third insulation space (G3).

[0178] Fig. 7a is a perspective view of an aerosol generating device according to another embodiment. Fig. 7b is an exploded cross-sectional view of an aerosol generating device according to another embodiment taken along the cross-sectional line B-B' shown in Fig. 7a. Fig. 7c is a combined cross-sectional view of the aerosol generating device shown in Fig. 7b.

[0179] Referring to FIGS. 7a to 7c, an aerosol generating device (2) according to another embodiment may include a body (2100), a heater assembly (2200), a bracket (2500), and an insulation member (2700).

[0180] At least one of the components of the aerosol generating device (2) illustrated in FIGS. 7a to 7c may be identical or similar to at least one of the components of the aerosol generating device (1) illustrated in FIG. 4, and any redundant description thereof will be omitted below.

[0181] The body (2100) can be separated into a main housing (2110) and an upper housing (2130). One end of the main housing (2110) in the longitudinal direction (e.g., in the z-axis direction) can be opened. During the manufacturing process of the aerosol generating device (2), components within the body (2100) can be coupled to each other and then accommodated into the interior of the main housing (2110) through the open end of the main housing (2110). By coupling the upper housing (2130) to the main housing (2110), the assembly of the aerosol generating device (2) can be completed.

[0182] The heater assembly (2200) may include a heater (2210), an airflow passage (2230), a cover (2240), and an upper joint (2260). The heater (2210) is as described above, so its description will be omitted.

[0183] The airflow passage (2230) may include a curved passage. Specifically, the passage of the airflow passage (2230) may extend in the longitudinal direction of the heater (2210) (e.g., z-axis direction). Both ends of the passage may be curved to be opened in a direction transverse to the longitudinal direction of the heater (2210) (e.g., y-axis direction). At this time, the lower end of the passage may be opened in the +y direction to be connected to the inlet of the cover (2240), and the upper end of the passage may be opened in the -y direction to be connected to a passage formed by combining the upper coupling portion (2260) and the bracket (2500).

[0184] The cover (2240) can be separated into a first part (2241), a second part (2242), and a third part (2243). During the manufacturing process of the aerosol generating device (1), the first part (2241) and the second part (2242) can be coupled to each other by approaching each other in a direction transverse to the longitudinal direction of the body (2100) (e.g., in the y-axis direction) with the heater (2210) interposed therebetween. The space surrounded by the first part (2241) and the second part (2242) can be opened in the z-axis direction.

[0185] The third portion (2243) can be coupled to one end of the first portion (2241) and the second portion (2242). The third portion (2243) can close one open end of the cylindrical assembly formed by the first portion (2241) and the second portion (2242). As a result, the heater (2210) can be accommodated in the cover (2240) through the other open end of the cylindrical assembly.

[0186] The cover (2240) can support the lower end of the heater (2210) through the third part (2243). In addition, the cover (2240) can support the lower end of the aerosol generating article (S) inserted into the insertion space (2100i) through the third part (2243). In addition, the cover (2240) can support the airflow passage (2230) through the second part (2242).

[0187] The first part (2241) and the second part (2242) of the cover (2240) may be arranged to surround the periphery of the heater (2210) and be spaced apart from the heater (2210). The space between the cover (2240) and the heater (2210) may correspond to a first insulating space (G1).

[0188] The third portion (2243) of the cover (2240) may include an inlet passage connected to the airflow passage (2230). One end of the inlet passage may be opened toward the airflow passage (2230), and the other end of the inlet passage may be opened toward the insertion space (2100i). Air moving along the airflow passage (2230) may be introduced into the inlet passage of the cover (2240). Air introduced into the cover (2240) may be introduced into the insertion space (2100i) inside the heater (2210).

[0189] The airflow passage (2230), the cover (2240), and the insertion space (2100i) inside the heater (2210) can be fluidly connected. While the air moves through the airflow passage (2230) and the cover (2240) to the insertion space (2100i) inside the heater (2210), the air can move in a 'U' shape inside the heater assembly (2200).

[0190] Meanwhile, the airflow passage (2230) may include a portion protruding toward the cover (2240). In addition, the second portion (2242) of the cover (2240) may include a portion protruding toward the airflow passage (2230). The protruding portion of the airflow passage (2230) and the protruding portion of the cover (2240) may contact each other to support each other. Since the protruding portions of the airflow passage (2230) and the cover (2240) contact each other, an empty space may exist between the airflow passage (2230) and the cover (2240). In this case, the empty space may function as an insulating space.

[0191] The upper joint (2260) is positioned on top of the heater (2210) and may form a portion of the exterior of the heater assembly (2200) (e.g., the upper wall of the heater assembly (2200)).

[0192] A portion of the upper coupling portion (2260) may be coupled to the heater (2210) and the cover (2240). Specifically, a portion of the upper coupling portion (2260) may be coupled to the open end of the heater (2210) and the inner cover (2240). A portion of the upper coupling portion (2260) may be opened toward the outside of the aerosol generating device (2) so that an aerosol generating article (S) may pass through and be received into the insertion space (2100i).

[0193] Another portion of the upper coupling portion (2260) may be positioned on the upper portion of the bracket (2500) to support the bracket (2500). The upper coupling portion (2260) may include a passage through which air moves. The passage of the upper coupling portion (2260) may be positioned on the upper portion of the bracket (2500). The passage of the upper coupling portion (2260) may be fluidly connected to one end of an airflow passage portion (2230) that is open in the y-axis direction.

[0194] The bracket (2500) can be separated into a first member (2510) and a second member (2520). Specifically, the first member (2510) has a cylindrical shape surrounding the heater (2210) or heater assembly (2200). The second member (2520) is configured to be coupled to one end of the first member (2510) and block the open end of the first member (2510).

[0195] The first member (2510) of the bracket (2500) may include a double-walled structure. Specifically, the first member (2510) may include a first extension portion (2511) surrounding the heater (2210) or heater assembly (2200), and a second extension portion (2512) surrounding the first extension portion. Additionally, the first member (2510) may include a bottom portion (2515) crossing the first extension portion (2511).

[0196] The first extension portion (2511) of the first member (2510) can support a portion of the airflow passage portion (2230) extending in the longitudinal direction of the heater (2210) and a side portion of the cover (2240). The bottom portion (2515) is configured to cross one end of the first extension portion (2511) and can function as a bottom wall of the first member (2510). The bottom portion (2515) can support the third portion (2243) of the cover (2240).

[0197] The first member (2510) may include a connecting portion (2513, 2514) connecting the first extension portion (2511) and the second extension portion (2512). As illustrated, the second connection portion (2514) is longer than the first connection portion (2513), so that the distance between the two extension portions (2511, 2512) illustrated on the left side of FIG. 7C is greater than the distance between the two extension portions (2511, 2512) illustrated on the right side of FIG. 7C.

[0198] In addition, since an airflow passage (2230) is also arranged on the left side of the heater (2210) based on the heater (2210), and the distance from the heater (2210) to the body (2100) in the left direction of the heater (2210) is greater than the distance in the right direction, heat can be absorbed by many components as it moves. That is, the empty space below the second connecting portion (2514) and between the first extension portion (2511) and the second extension portion (2512) can function as an insulating space. As a result, the importance of insulation on the left side of the heater (2210) may be lower than that on the right side.

[0199] The first member (2510) can be connected to the upper connecting portion (2260) through the first connecting portion (2513) and the second connecting portion (2514). As described above, a passage for the upper connecting portion (2260) can be arranged on the upper portion of the second connecting portion (2514).

[0200] A portion of the first member (2510) of the bracket (2500) may be positioned spaced apart from the cover (2240). The space between the cover (2240) and a portion of the bracket (2500) may correspond to a second insulating space (G2).

[0201] The first member (2510) of the bracket (2500) may be positioned apart from the main housing (2110) of the body (2100). The space between the body (2100) and the bracket (2500) may correspond to a third insulating space (G3).

[0202] Meanwhile, the shape of the bracket (2500) is not limited to that illustrated. Depending on the embodiment, the length of the first connecting portion (2513) and the length of the second connecting portion (2514) may be the same.

[0203] An insulation member (2700) may be positioned between the first extension portion (2511) and the second extension portion (2512). At this time, the insulation member (2700) may be coupled to at least one of the outer surface of the first extension portion (2511) and the inner surface of the second extension portion (2512).

[0204] At this time, the insulation part (2700) may be placed at the bottom of the first connecting part (2513). Although not shown, depending on the embodiment, the insulation part (2700) may also be placed at the bottom of the second connecting part (2514).

[0205] Additionally, depending on the embodiment, the insulation part (2700) may be arranged on the outer surface of the second extension part (2512). In this case, the space between the insulation part (2700) and the body (2100) may correspond to a third insulation space (G3).

[0206] The location of the insulation (2700) is not limited to that shown. Although not shown, the insulation (2700) may be coupled to the outer surface of the second extension portion (2512). Additionally, the insulation (2700) may be positioned on the outer surface of the cover (2240).

[0207] Meanwhile, as shown, one insulation part (2700) is arranged inside the body (2100), but the embodiment is not limited to the number of insulation parts (2700).

[0208] As for the insulation part (2700), it is the same as described above, so its description will be omitted.

[0209] Fig. 8a is a perspective view of an aerosol generating device according to another embodiment. Fig. 8b is an exploded cross-sectional view of an aerosol generating device according to another embodiment taken along the cross-sectional line C-C' shown in Fig. 8a. Fig. 8c is a combined cross-sectional view of the aerosol generating device shown in Fig. 8b.

[0210] Referring to FIGS. 8a to 8c, an aerosol generating device (3) according to another embodiment may include a body (3100), a heater assembly (3200), a bracket (3500), and an insulation member (3700).

[0211] At least one of the components of the aerosol generating device (3) illustrated in FIGS. 8a to 8c may be identical or similar to at least one of the components of the aerosol generating device (1) illustrated in FIG. 4, and any redundant description thereof will be omitted below.

[0212] The body (3100) can be separated into a main housing (3110) and a window (3120). At this time, the window (3120) is only illustrated in the perspective view of FIG. 8A. That is, only the main housing (3110) of the body (3100) is illustrated in the cross-sectional views of FIGS. 8B and 8C. Components within the body (3100) may be positioned between the main housing (3110) and the window (3120).

[0213] In the manufacturing process of the aerosol generating device (3), after the components inside the body (3100) are combined, the main housing (3110) and the window (3120) can be combined in the finishing stage. At this time, the main housing (3110) and the window (3120) can be combined by approaching each other in a direction transverse to the longitudinal direction of the body (3100) (e.g., in the x-axis direction).

[0214] The aerosol generating device (3) may further include a display (D) on which visual information is displayed. The display (D) may be arranged in a window (3120) such that at least a portion of the display (D) is exposed to the outside of the body (3100). The aerosol generating device (3) may provide various visual information to the user through the display (D).

[0215] For example, the aerosol generating device (3) may provide information about the temperature of the heater (3210), information about whether a user's puff action has occurred, and / or information about the number of remaining puffs of the inserted aerosol generating article (S) through the display (D), but the information provided through the display (D) may be modified in various ways.

[0216] The heater assembly (3200) may include a heater (3210), an induction coil (3215), an end support (3220), an inner cover (3240), an outer cover (3250), and a top joint (3260).

[0217] The induction coil (3215) is configured to generate an induced magnetic field toward the heater (3210). At this time, the heater (3210) may be a susceptor that generates heat by the induced magnetic field. For example, the induction coil (3215) generates an alternating magnetic field as power is supplied, and heat is generated in the heater (3210) by the alternating magnetic field generated by the induction coil (3215), thereby heating the aerosol generating article (S) inserted into the insertion space (3100i).

[0218] The induction coil (3215) may be arranged to surround the inner cover (3240). That is, the induction coil (3215) may be arranged to be wound around the inner cover (3240). The induction coil (3215) may be supported by the inner cover (3240).

[0219] The end support (3220) is configured to be positioned at the lower end of the inner cover (3240) to support the heater (3210) and at the same time support one end of the aerosol generating article (S). At this time, the end support (3220) can separate one end of the aerosol generating article (S) accommodated in the inner cover (3240) from the bottom surface of the inner cover (3240).

[0220] When one end of an aerosol generating article (S) accommodated in an insertion space (3100i) inside a heater (3210) comes into contact with an end support (3220), the aerosol generating article (S) can be supported by the end support (3220) so as not to move in the longitudinal and radial directions of the heater (3210).

[0221] In order for the aerosol generating article (S) to be supported by the end support (3220) without contacting the bottom surface of the inner cover (3240), the end support (3220) may include a portion that protrudes from the inner surface of the inner cover (3240) toward the center of the inner cover (3240). The protruding portion of the end support (3220) may be positioned at the bottom of the end support (3220).

[0222] In order to stably support the aerosol generating article (S), the end support member (3220) may have multiple protruding portions. Referring to the drawing, two protruding portions are illustrated, but embodiments are not limited to the number of protruding portions of the end support member (3220).

[0223] A plurality of protruding portions of the end support portion (3220) may be spaced apart at equal intervals along the inner surface of the inner cover (3240) in the circumferential direction of the inner cover (3240). Air introduced into the inner cover (3240) may pass through the empty space between the plurality of protruding portions of the end support portion (3220) and move to the lower portion of the end support portion (3220).

[0224] Since one end of the aerosol generating article (S) is separated from the bottom surface of the inner cover (3240) by the end support (3220), air that has moved to the lower part of the end support (3220) can be transferred to one end of the aerosol generating article (S) and introduced into the interior of the aerosol generating article (S).

[0225] The inner cover (3240) is positioned in the inner space of the body (3100), and has a cylindrical configuration to surround and protect the heater (3210) as described above. The heater (3210) can be primarily protected by the inner cover (3240).

[0226] The inner cover (3240) may be positioned apart from the heater (3210). Accordingly, the space between the inner cover (3240) and the heater (3210) may correspond to a first insulating space (G1).

[0227] Meanwhile, the inner cover (3240) can serve as a passage through which air introduced from the outside flows. Air can be introduced into the interior of the inner cover (3240) through the opening of the upper connecting portion (3260) described later.

[0228] Air moving from the top to the bottom of the inner cover (3240) is introduced into the end support (3220) and can reach one end of the aerosol generating article (S) accommodated in the insertion space (3100i).

[0229] The outer cover (3250) forms a portion of the exterior of the heater assembly (3200) (e.g., the outer surface of the heater assembly (3200)) and may perform a function of accommodating and protecting components of the heater assembly (3200). For example, the heater (3210), the end support (3220), and the inner cover (3240) may be accommodated in the outer cover (3250). Accordingly, the heater (3210) may be secondarily protected by the outer cover (1250).

[0230] The outer cover (3250) can support the lower portion of the inner cover (3240). Additionally, the outer cover (3250) can be positioned spaced apart from the outer surface of the inner cover (3240). The space between the inner cover (3240) and the outer cover (3250) can function as an insulating space.

[0231] The outer cover (3250) may be positioned apart from the bracket (3500). The space between the outer cover (3250) and the bracket (3500) may correspond to a second insulating space (G2).

[0232] The outer cover (3250) can block heat generated from the heater (3210) from being transmitted to the outside. To increase the efficiency of insulation, the outer cover (3250) may include a double-wall structure. Specifically, the outer cover (3250) may include an inner wall (3251) facing the inner cover (3240) and an outer wall (3252) at least partly spaced from the inner wall (3251). The space between the inner wall (3251) and the outer wall (3252) may function as an insulation space.

[0233] The upper joint (3260) is positioned on top of the heater (1210) and may form a portion of the exterior of the heater assembly (3200) (e.g., the upper wall of the heater assembly (3200)).

[0234] A portion of the upper coupling portion (3260) may be coupled to the heater (1210) and the inner cover (3240). Specifically, a portion of the upper coupling portion (3260) may be coupled to the open ends of the heater (3210) and the inner cover (3240).

[0235] A portion of the upper joint (3260) may be opened toward the outside of the aerosol generating device (1) to allow an aerosol generating article to pass through and be received into the insertion space. At this time, air may be introduced through the open portion.

[0236] Even when the aerosol generating article (S) is inserted into the insertion space (3100i), air can be introduced through the open portion of the upper coupling portion (3260). Specifically, the aerosol generating article (S) can be positioned spaced apart from the inner surface of the open portion of the upper coupling portion (3260). Air can move through the space created by the aerosol generating article (S) being spaced apart from the upper coupling portion (3260). That is, air can move into the space between the open portion of the upper coupling portion (3260) and the outer surface of the aerosol generating article (S).

[0237] Air moving to the lower portion of the upper joint (3260) can pass through an opening formed in the upper joint (3260). The opening can fluidly connect the open portion of the upper joint (3260) and the inner space of the inner cover (3240). Accordingly, external air can pass through the upper joint (3260) and flow into the inner space of the inner cover (3240).

[0238] Meanwhile, although not shown, according to an embodiment, the open portion of the upper coupling portion (3260) may include a protruding portion for supporting the aerosol generating article (S). The plurality of protruding portions of the upper coupling portion (3260) may be spaced apart at equal intervals along the inner surface of the open portion in the circumferential direction of the open portion of the upper coupling portion (3260). Air introduced into the upper coupling portion (3260) may pass through the empty space between the plurality of protruding portions of the upper coupling portion (3260) and move to the lower portion of the upper coupling portion (3260). That is, the air may move to the space surrounded by the inner surface of the upper coupling portion (3260), the plurality of protruding portions, and the aerosol generating article (S).

[0239] A portion of the upper coupling portion (3260) may be coupled to the open end of the outer cover (3250) and the bracket (3500). The upper coupling portion (3260) may close the open end of the outer cover (3250) and the bracket (3500). For example, the upper coupling portion (3260) may close the second insulating space (G2). Accordingly, the insulating effect of the interior of the heater assembly (3200) may be increased.

[0240] The bracket (3500) is a cylindrical structure that accommodates the heater assembly (3200). The bracket (3500) may be positioned spaced apart from the inner surface of the body (3100). The space between the inner surface of the body (3100) and the bracket (3500) may correspond to a third insulating space (G3).

[0241] As illustrated, the heater assembly (3200) is offset to one side (e.g., right) from the center of the bracket (3500). In addition, the bracket (3500) is also offset to one side (e.g., left) from the center of the body (3100). However, the embodiment is not limited to the illustrated shape. Since the bracket (3500) is the same as described above in FIG. 4, its description will be omitted.

[0242] The insulation part (3700) may be attached to the outer surface of the bracket (3500). As illustrated, the cylindrical insulation part (3700) is attached to the outer surface of the bracket (3500), but the embodiment is not limited to the shape of the insulation part (3700). When the insulation part (3700) is attached to the outer surface of the bracket (3500), the space between the inner surface of the body (3100) and the insulation part (3700) may correspond to a third insulation space (G3).

[0243] The location of the insulation (3700) is not limited to that shown. Although not shown, the insulation (3700) may be coupled to the inner surface of the bracket (3500) depending on the embodiment. In addition, the insulation (3700) may be coupled to the outer surface of the outer cover (3250) forming the exterior of the heater assembly (3200).

[0244] Meanwhile, as shown, one insulation part (3700) is arranged inside the body (3100), but the embodiment is not limited to the number of insulation parts (3700). Since the insulation part (3700) is the same as described above, its description will be omitted.

[0245] According to the aerosol generating device according to the embodiments, heat can be prevented from being transferred to the outside of the aerosol generating device, thereby protecting the hands of a user using the aerosol generating device from heat.

[0246] Furthermore, according to the aerosol generating device according to the embodiments, since heat is evenly distributed by the insulation, it is possible to prevent a specific portion of the aerosol generating device from becoming excessively hot compared to other portions. Accordingly, it is possible to prevent the components within the aerosol generating device from breaking down, and to prevent a phenomenon in which only a specific portion of the body becomes excessively hot.

[0247] FIG. 9 is a block diagram of an aerosol generating device according to another embodiment of the present disclosure.

[0248] The aerosol generating device (1) may include a power source (11), a control unit (12), a sensor (13), an output unit (14), an input unit (15), a communication unit (16), a memory (17), and at least one heater (18, 24). However, the internal structure of the aerosol generating device (1) is not limited to that illustrated in Fig. 9. That is, a person having ordinary skill in the art related to the present embodiment will understand that, depending on the design of the aerosol generating device (1), some of the components illustrated in Fig. 9 may be omitted or new components may be added.

[0249] The sensor (13) can detect the status of the aerosol generating device (1) or the status around the aerosol generating device (1) and transmit the detected information to the control unit (12). Based on the detected information, the control unit (12) can control the aerosol generating device (1) so that various functions such as controlling the operation of the cartridge heater (24) and / or heater (18), restricting smoking, determining whether a stick (not shown) and / or cartridge (not shown) is inserted, and displaying a notification are performed.

[0250] The sensor (13) may include at least one of a temperature sensor (131), a puff sensor (132), an insertion detection sensor (133), a reuse detection sensor (134), a cartridge detection sensor (135), a cap detection sensor (136), and a movement detection sensor (137).

[0251] The temperature sensor (131) can detect the temperature at which the cartridge heater (24) and / or the heater (18) is heated. The aerosol generating device (1) may include a separate temperature sensor that detects the temperature of the cartridge heater (24) and / or the heater (18), or the cartridge heater (24) and / or the heater (18) itself may serve as the temperature sensor.

[0252] The temperature sensor (131) can output a signal corresponding to the temperature of the cartridge heater (24) and / or the heater (18). For example, the temperature sensor (131) can include a resistance element whose resistance value changes in response to a change in the temperature of the cartridge heater (24) and / or the heater (18). It can be implemented by a thermistor, which is an element that utilizes the property of changing resistance depending on temperature. At this time, the temperature sensor (131) can output a signal corresponding to the resistance value of the resistance element as a signal corresponding to the temperature of the cartridge heater (24) and / or the heater (18). For example, the temperature sensor (131) can be configured as a sensor that detects the resistance value of the cartridge heater (24) and / or the heater (18). At this time, the temperature sensor (131) can output a signal corresponding to the resistance value of the cartridge heater (24) and / or the heater (18) as a signal corresponding to the temperature of the cartridge heater (24) and / or the heater (18).

[0253] A temperature sensor (131) may be placed around the power source (11) to monitor the temperature of the power source (11). The temperature sensor (131) may be placed adjacent to the power source (11). For example, the temperature sensor (131) may be attached to one side of a battery, which is the power source (11). For example, the temperature sensor (131) may be mounted on one side of a printed circuit board.

[0254] A temperature sensor (131) is placed inside the body (not shown) and can detect the internal temperature of the body.

[0255] The puff sensor (132) can detect the user's puff based on various physical changes in the airflow path. The puff sensor (132) can output a signal corresponding to the puff. For example, the puff sensor (132) can be a pressure sensor. The puff sensor (132) can output a signal corresponding to the internal pressure of the aerosol generating device. Here, the internal pressure of the aerosol generating device (1) can correspond to the pressure of the airflow path through which the gas flows. The puff sensor (132) can be arranged in correspondence to the airflow path through which the gas flows in the aerosol generating device (1).

[0256] The insertion detection sensor (133) can detect the insertion and / or removal of the stick. The insertion detection sensor (133) can detect a signal change according to the insertion and / or removal of the stick. The insertion detection sensor (133) can be installed around the insertion space. The insertion detection sensor (133) can detect the insertion and / or removal of the stick according to a change in the permittivity inside the insertion space. For example, the insertion detection sensor (133) can be an inductive sensor and / or a capacitance sensor.

[0257] An inductive sensor may include at least one coil. The coil of the inductive sensor may be positioned adjacent to the insertion space. For example, when a magnetic field changes around a current-carrying coil, the characteristics of the current flowing in the coil may change according to Faraday's law of electromagnetic induction. Here, the characteristics of the current flowing in the coil may include the frequency of the alternating current, the current value, the voltage value, the inductance value, the impedance value, etc.

[0258] An inductive sensor can output a signal corresponding to the characteristics of the current flowing through the coil. For example, an inductive sensor can output a signal corresponding to the inductance value of the coil.

[0259] A capacitance sensor may include a conductor. The conductor of the capacitance sensor may be positioned adjacent to the insertion space. The capacitance sensor may output a signal corresponding to the electromagnetic properties of the surroundings, such as the electrostatic capacitance around the conductor. For example, when a stick including a metallic wrapper is inserted into the insertion space, the electromagnetic properties around the conductor may be changed by the wrapper of the stick.

[0260] A reuse detection sensor (134) can detect whether the stick has been reused. The reuse detection sensor (134) may be a color sensor. The color sensor can detect the color of the stick. The color sensor can detect the color of a portion of the wrapper that wraps the outside of the stick. The color sensor can detect a value for an optical characteristic corresponding to the color of an object based on light reflected from the object. For example, the optical characteristic may be a wavelength of light. The color sensor may be implemented as a single component with the proximity sensor, or may be implemented as a separate component distinct from the proximity sensor.

[0261] At least some of the wrappers constituting the stick may change color due to the aerosol. The reuse detection sensor (134) may be positioned corresponding to a position where at least some of the wrappers that change color due to the aerosol are disposed when the stick is inserted into the insertion space. For example, before the stick is used by a user, the color of at least some of the wrappers may be a first color. At this time, as at least some of the wrappers are wetted by the aerosol generated by the aerosol generating device (1) while passing through the stick, the color of at least some of the wrappers may change to a second color. Meanwhile, the color of at least some of the wrappers may be maintained at the second color after changing from the first color to the second color.

[0262] The cartridge detection sensor (135) can detect the mounting and / or removal of the cartridge. The cartridge detection sensor (135) can be implemented by an inductance-based sensor, a capacitive sensor, a resistance sensor, a Hall sensor (hall IC) using the Hall effect, etc.

[0263] The cap detection sensor (136) can detect the attachment and / or removal of the cap. If the cap is separated from the body, the cartridge and part of the body covered by the cap may be exposed to the outside. The cap detection sensor (136) can be implemented by a contact sensor, a hall sensor (hall IC), an optical sensor, or the like.

[0264] A motion detection sensor (137) can detect the movement of the aerosol generating device. The motion detection sensor (137) can be implemented with at least one of an acceleration sensor and a gyro sensor.

[0265] In addition to the sensors (131 to 137) described above, the sensor (13) may further include at least one of a humidity sensor, a pressure sensor, a magnetic sensor, a position sensor (GPS), and a proximity sensor. Since the functions of each sensor can be intuitively inferred by a person skilled in the art from its name, a detailed description thereof may be omitted.

[0266] The output unit (14) can output information on the status of the aerosol generating device (1) and provide it to the user. The output unit (14) may include at least one of a display (141), a haptic unit (142), and an audio output unit (143), but is not limited thereto. When the display (141) and the touch pad form a layered structure to form a touch screen, the display (141) can be used as an input device in addition to an output device.

[0267] The display (141) can visually provide information about the aerosol generating device (1) to the user. For example, the information about the aerosol generating device (1) can mean various information such as the charging / discharging status of the power supply (11) of the aerosol generating device (1), the preheating status of the heater (18), the insertion / removal status of the stick and / or cartridge, the mounting / removal status of the cap, or the status in which the use of the aerosol generating device (1) is restricted (e.g., detection of an abnormal item), and the display (141) can output the above information to the outside. For example, the display (141) can be in the form of an LED light-emitting element. For example, the display (141) can be a liquid crystal display panel (LCD), an organic light-emitting display panel (OLED), etc.

[0268] The haptic unit (142) can provide tactile information about the aerosol generating device (1) to the user by converting an electrical signal into a mechanical stimulus or an electrical stimulus. For example, the haptic unit (142) can generate a vibration corresponding to the completion of the initial preheating when initial power is supplied to the cartridge heater (24) and / or heater (18) for a set period of time. The haptic unit (142) can include a vibration motor, a piezoelectric element, or an electrical stimulation device.

[0269] The acoustic output unit (143) can provide information about the aerosol generating device (1) to the user audibly. For example, the acoustic output unit (143) can convert an electrical signal into an acoustic signal and output it to the outside.

[0270] The power source (11) can supply power used to operate the aerosol generating device (1). The power source (11) can supply power so that the cartridge heater (24) and / or the heater (18) can be heated. In addition, the power source (11) can supply power required for the operation of other components provided in the aerosol generating device (1), such as a sensor (13), an output unit (14), an input unit (15), a communication unit (16), and a memory (17). The power source (11) can be a rechargeable battery or a disposable battery. For example, the power source (11) can be a lithium polymer (LiPoly) battery, but is not limited thereto.

[0271] Although not shown in FIG. 9, the aerosol generating device (1) may further include a power protection circuit. The power protection circuit may be electrically connected to the power source (11) and may include a switching element.

[0272] The power protection circuit can block the power supply (11) according to certain conditions. For example, the power protection circuit can block the power supply (11) when the voltage level of the power supply (11) is higher than a first voltage corresponding to overcharge. For example, the power protection circuit can block the power supply (11) when the voltage level of the power supply (11) is lower than a second voltage corresponding to overdischarge.

[0273] The heater (18) can receive power from the power source (11) to heat the medium or aerosol generating material within the stick. Although not illustrated in FIG. 9, the aerosol generating device (1) may further include a power conversion circuit (e.g., a DC / DC converter) that converts the power of the power source (11) and supplies it to the cartridge heater (24) and / or the heater (18). In addition, when the aerosol generating device (1) generates the aerosol by induction heating, the aerosol generating device (1) may further include a DC / AC converter that converts the direct current power of the power source (11) into alternating current power.

[0274] The control unit (12), sensor (13), output unit (14), input unit (15), communication unit (16), and memory (17) can receive power from the power source (11) and perform their functions. Although not illustrated in FIG. 9, the device may further include a power conversion circuit, such as an LDO (low dropout) circuit or a voltage regulator circuit, that converts the power of the power source (11) and supplies it to each component. In addition, although not illustrated in FIG. 9, a noise filter may be provided between the power source (11) and the heater (18). The noise filter may be a low pass filter. The low pass filter may include at least one inductor and a capacitor. The cutoff frequency of the low pass filter may correspond to the frequency of the high frequency switching current applied from the power source (11) to the heater (18). The low pass filter can prevent high frequency noise components from being applied to a sensor (13), such as an insertion detection sensor (133).

[0275] In one embodiment, the cartridge heater (24) and / or heater (18) may be formed of any suitable electrically resistive material. For example, suitable electrically resistive materials may be metals or metal alloys including, but not limited to, titanium, zirconium, tantalum, platinum, nickel, cobalt, chromium, hafnium, niobium, molybdenum, tungsten, tin, gallium, manganese, iron, copper, stainless steel, nichrome, and the like. Additionally, the heater (18) may be implemented as, but not limited to, a metal heating wire, a metal heating plate having electrically conductive tracks arranged thereon, a ceramic heating element, and the like.

[0276] In another embodiment, the heater (18) may be an induction heater. For example, the heater (18) may include a susceptor that heats the aerosol generating material by generating heat through a magnetic field applied by a coil.

[0277] The input unit (15) can receive information input from a user or output information to the user. For example, the input unit (15) can be a touch panel. The touch panel can include at least one touch sensor that detects touch. For example, the touch sensor can include, but is not limited to, a capacitive touch sensor, a resistive touch sensor, a surface acoustic wave touch sensor, an infrared touch sensor, etc.

[0278] The display (141) and the touch panel may be implemented as a single panel. For example, the touch panel may be inserted into the display (141) (on-cell type or in-cell type). For example, the touch panel may be added on the display panel (add-on type).

[0279] Meanwhile, the input unit (15) may include, but is not limited to, buttons, key pads, dome switches, jog wheels, jog switches, etc.

[0280] The memory (17) is hardware that stores various data processed in the aerosol generating device (1), and can store data processed and data to be processed in the control unit (12). The memory (17) may include at least one type of storage medium among a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (e.g., SD or XD memory, etc.), a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and an optical disk. The memory (17) may store data on the operation time of the aerosol generating device (1), the maximum number of puffs, the current number of puffs, at least one temperature profile, and a user's smoking pattern.

[0281] The communication unit (16) may include at least one component for communication with another electronic device. For example, the communication unit (16) may include at least one of a short-range communication unit and a wireless communication unit.

[0282] The short-range wireless communication unit may include, but is not limited to, a Bluetooth communication unit, a BLE (Bluetooth Low Energy) communication unit, a near field communication unit, a WLAN (Wi-Fi) communication unit, a Zigbee communication unit, an infrared (IrDA, infrared Data Association) communication unit, a WFD (Wi-Fi Direct) communication unit, an UWB (ultra wideband) communication unit, an Ant+ communication unit, etc.

[0283] The wireless communication unit may include, but is not limited to, a cellular network communication unit, an Internet communication unit, a computer network (e.g., a LAN or WAN) communication unit, etc.

[0284] Although not shown in FIG. 9, the aerosol generating device (1) further includes a connection interface such as a USB (universal serial bus) interface, and can transmit and receive information or charge a power source (11) by connecting to another external device through a connection interface such as a USB interface.

[0285] The control unit (12) can control the overall operation of the aerosol generating device (1). In one embodiment, the control unit (12) may include at least one processor. The processor may be implemented as an array of multiple logic gates, or may be implemented as a combination of a general-purpose microprocessor and a memory storing a program executable by the microprocessor. Furthermore, it will be understood by those skilled in the art that the present embodiment may be implemented as other types of hardware.

[0286] The control unit (12) can control the temperature of the heater (18) by controlling the supply of power from the power source (11) to the heater (18). The control unit (12) can control the temperature of the cartridge heater (24) and / or the heater (18) based on the temperature of the cartridge heater (24) and / or the heater (18) sensed by the temperature sensor (131). The control unit (12) can adjust the power supplied to the cartridge heater (24) and / or the heater (18) based on the temperature of the cartridge heater (24) and / or the heater (18). For example, the control unit (12) can determine a target temperature for the cartridge heater (24) and / or the heater (18) based on a temperature profile stored in the memory (17).

[0287] The aerosol generating device (1) may include a power supply circuit (not shown) electrically connected to the power supply (11) between the power supply (11) and the cartridge heater (24) and / or the heater (18). The power supply circuit may be electrically connected to the cartridge heater (24), the heater (18), or the induction coil (181). The power supply circuit may include at least one switching element. The switching element may be implemented by a bipolar junction transistor (BJT), a field effect transistor (FET), or the like. The control unit (12) may control the power supply circuit.

[0288] The control unit (12) can control power supply by controlling the switching of the switching elements of the power supply circuit. The power supply circuit may be an inverter that converts direct current power output from the power source (11) into alternating current power. For example, the inverter may be configured as a full-bridge circuit or a half-bridge circuit including a plurality of switching elements.

[0289] The control unit (12) can turn on the switching element so that power is supplied from the power source (11) to the cartridge heater (24) and / or the heater (18). The control unit (12) can turn off the switching element so that power is cut off to the cartridge heater (24) and / or the heater (18). The control unit (12) can control the current supplied from the power source (11) by controlling the frequency and / or duty ratio of the current pulse input to the switching element.

[0290] The control unit (12) can control the voltage output from the power source (11) by controlling the switching of the switching element of the power supply circuit. The power conversion circuit can convert the voltage output from the power source (11). For example, the power conversion circuit can include a buck converter that steps down the voltage output from the power source (11). For example, the power conversion circuit can be implemented using a buck-boost converter, a zener diode, etc.

[0291] The control unit (12) can control the on / off operation of the switching element included in the power conversion circuit to adjust the level of the voltage output from the power conversion circuit. When the on state of the switching element continues, the level of the voltage output from the power conversion circuit may correspond to the level of the voltage output from the power source (11). The duty ratio for the on / off operation of the switching element may correspond to the ratio of the voltage output from the power conversion circuit to the voltage output from the power source (11). As the duty ratio for the on / off operation of the switching element decreases, the level of the voltage output from the power conversion circuit may decrease. The heater (18) can be heated based on the voltage output from the power conversion circuit.

[0292] The control unit (12) can control power to be supplied to the heater (18) using at least one of the pulse width modulation (PWM) method and the proportional-integral-differential (PID) method.

[0293] For example, the control unit (12) can control a current pulse having a predetermined frequency and duty ratio to be supplied to the heater (18) using the PWM method. The control unit (12) can control the power supplied to the heater (18) by adjusting the frequency and duty ratio of the current pulse.

[0294] For example, the control unit (12) can determine a target temperature that is the target of control based on a temperature profile. The control unit (12) can control the power supplied to the heater (18) by using the PID method, which is a feedback control method using a difference value between the temperature of the heater (18) and the target temperature, a value obtained by integrating the difference value over time, and a value obtained by differentiating the difference value over time.

[0295] The control unit (12) can prevent the cartridge heater (24) and / or the heater (18) from overheating. For example, the control unit (12) can control the operation of the power conversion circuit to cut off the supply of power to the cartridge heater (24) and / or the heater (18) based on the temperature of the cartridge heater (24) and / or the heater (18) exceeding a preset limit temperature. For example, the control unit (12) can reduce the amount of power supplied to the cartridge heater (24) and / or the heater (18) by a certain percentage based on the temperature of the cartridge heater (24) and / or the heater (18) exceeding a preset limit temperature. For example, the control unit (12) can determine that the aerosol generating substance contained in the cartridge is exhausted based on the temperature of the cartridge heater (24) exceeding the limit temperature, and can cut off the supply of power to the cartridge heater (24).

[0296] The control unit (12) can control the charging and discharging of the power source (11). The control unit (12) can check the temperature of the power source (11) based on the output signal of the temperature sensor (131).

[0297] When a power line is connected to the battery terminal of the aerosol generating device (1), the control unit (12) can check whether the temperature of the power source (11) is higher than or equal to the first limit temperature, which is a criterion for blocking charging of the power source (11). If the temperature of the power source (11) is lower than the first limit temperature, the control unit (12) can control the power source (11) to be charged based on a preset charging current. If the temperature of the power source (11) is higher than or equal to the first limit temperature, the control unit (12) can block charging of the power source (11).

[0298] When the power of the aerosol generating device (1) is turned on, the control unit (12) can check whether the temperature of the power source (11) is higher than or equal to the second limit temperature, which is a standard for blocking discharge of the power source (11). If the temperature of the power source (11) is lower than the second limit temperature, the control unit (12) can control to use the power stored in the power source (11). If the temperature of the power source (11) is higher than or equal to the second limit temperature, the control unit (12) can stop using the power stored in the power source (11).

[0299] The control unit (12) can calculate the remaining capacity of the power stored in the power source (11). For example, the control unit (12) can calculate the remaining capacity of the power source (11) based on the voltage and / or current sensing values ​​of the power source (11).

[0300] The control unit (12) can determine whether a stick is inserted into the insertion space through the insertion detection sensor (133). The control unit (12) can determine that the stick is inserted based on the output signal of the insertion detection sensor (133). If it is determined that the stick is inserted into the insertion space, the control unit (12) can control to supply power to the cartridge heater (24) and / or the heater (18). For example, the control unit (12) can supply power to the cartridge heater (24) and / or the heater (18) based on the temperature profile stored in the memory (17).

[0301] The control unit (12) can determine whether the stick is removed from the insertion space. For example, the control unit (12) can determine whether the stick is removed from the insertion space through the insertion detection sensor (133). For example, the control unit (12) can determine that the stick is removed from the insertion space when the temperature of the heater (18) is higher than a limited temperature or when the temperature change slope of the heater (18) is higher than a set slope. When it is determined that the stick is removed from the insertion space, the control unit (12) can cut off the power supply to the cartridge heater (24) and / or the heater (18).

[0302] The control unit (12) can control the power supply time and / or power supply amount to the heater (18) according to the state of the stick detected by the sensor (13). The control unit (12) can check the level range that includes the level of the signal of the capacitance sensor based on a lookup table. The control unit (12) can determine the moisture content of the stick according to the checked level range.

[0303] When the stick is in an over-humidified state, the control unit (12) can control the power supply time to the heater (18) to increase the preheating time of the stick compared to the normal state.

[0304] The control unit (12) can determine whether the stick inserted into the insertion space has been reused through the reuse detection sensor (134). For example, the control unit (12) can compare the sensing value of the signal of the reuse detection sensor with a first reference range that includes a first color, and if the sensing value is included in the first reference range, it can determine that the stick has not been used. For example, the control unit (12) can compare the sensing value of the signal of the reuse detection sensor with a second reference range that includes a second color, and if the sensing value is included in the second reference range, it can determine that the stick has been used. If it is determined that the stick has been used, the control unit (12) can cut off the supply of power to the cartridge heater (24) and / or the heater (18).

[0305] The control unit (12) can determine whether the cartridge is coupled and / or removed through the cartridge detection sensor (135). For example, the control unit (12) can determine whether the cartridge is coupled and / or removed based on the sensing value of the signal of the cartridge detection sensor.

[0306] The control unit (12) can determine whether the aerosol generating material of the cartridge is exhausted. For example, the control unit (12) can preheat the cartridge heater (24) and / or the heater (18) by applying power, and determine whether the temperature of the cartridge heater (24) exceeds a limited temperature during the preheating period. If the temperature of the cartridge heater (24) exceeds the limited temperature, the control unit (12) can determine that the aerosol generating material of the cartridge is exhausted. If the control unit (12) determines that the aerosol generating material of the cartridge is exhausted, the control unit (12) can cut off the supply of power to the cartridge heater (24) and / or the heater (18).

[0307] The control unit (12) can determine whether the cartridge is usable. For example, the control unit (12) can determine that the cartridge is unusable if the current number of puffs is greater than or equal to the maximum number of puffs set for the cartridge based on data stored in the memory (17). For example, the control unit (12) can determine that the cartridge is unusable if the total time that the heater (24) has been heated is greater than or equal to the preset maximum time or the total amount of power supplied to the heater (24) is greater than or equal to the preset maximum amount of power.

[0308] The control unit (12) can make a judgment regarding the user's inhalation through the puff sensor (132). For example, the control unit (12) can determine whether a puff has been generated based on the sensing value of the signal of the puff sensor. For example, the control unit (12) can determine the intensity of the puff based on the sensing value of the signal of the puff sensor (132). If the number of puffs reaches a preset maximum number of puffs or if no puffs are detected for a preset time or longer, the control unit (12) can cut off the supply of power to the cartridge heater (24) and / or heater (18).

[0309] The control unit (12) can determine whether the cap is attached and / or removed through the cap detection sensor (136). For example, the control unit (12) can determine whether the cap is attached and / or removed based on the sensing value of the signal of the cap detection sensor.

[0310] The control unit (12) can control the output unit (14) based on the result detected by the sensor (13). For example, when the number of puffs counted through the puff sensor (132) reaches a preset number, the control unit (12) can notify the user that the aerosol generating device (1) will soon be terminated through at least one of the display (141), the haptic unit (142), and the audio output unit (143). For example, the control unit (12) can notify the user through the output unit (14) based on a determination that a stick is not present in the insertion space. For example, the control unit (12) can notify the user through the output unit (14) based on a determination that a cartridge and / or cap is not mounted. For example, the control unit (12) can transmit information about the temperature of the cartridge heater (24) and / or the heater (18) to the user through the output unit (14).

[0311] The control unit (12) can store and update the history of events that have occurred in the memory (17) based on the occurrence of a predetermined event. The event may include operations such as detection of insertion of a stick, initiation of heating of the stick, detection of puff, termination of puff, detection of overheating of the cartridge heater (24) and / or heater (18), detection of overvoltage application to the cartridge heater (24) and / or heater (18), termination of heating of the stick, power on / off of the aerosol generating device (1), initiation of charging of the power source (11), detection of overcharge of the power source (11), termination of charging of the power source (11), etc. performed in the aerosol generating device (1). The history of the event may include the date and time when the event occurred, log data corresponding to the event, etc. For example, when the predetermined event is detection of insertion of a stick, the log data corresponding to the event may include data on the sensing value of the insertion detection sensor (133), etc. For example, if a given event is overheating detection of the cartridge heater (24) and / or heater (18), log data corresponding to the event may include data on the temperature of the cartridge heater (24) and / or heater (18), the voltage applied to the cartridge heater (24) and / or heater (18), the current flowing through the cartridge heater (24) and / or heater (18), etc.

[0312] The control unit (12) can control to form a communication link with an external device, such as a user's mobile terminal. When data regarding authentication is received from the external device through the communication link, the control unit (12) can release the restriction on the use of at least one function of the aerosol generating device (1). Here, the data regarding authentication can include data indicating completion of user authentication for a user corresponding to the external device. The user can perform user authentication through the external device. The external device can determine whether user data is valid based on the user's birthday, a unique number representing the user, etc., and can receive data regarding the use authority of the aerosol generating device (1) from an external server. The external device can transmit data indicating completion of user authentication to the aerosol generating device (1) based on the data regarding the use authority. When the user authentication is completed, the control unit (12) can release the restriction on the use of at least one function of the aerosol generating device (1). For example, the control unit (12) can release the restriction on the use of the heating function that supplies power to the heater (18) when user authentication is completed.

[0313] The control unit (12) can transmit data on the status of the aerosol generating device (1) to an external device via a communication link formed with the external device. Based on the received status data, the external device can output the remaining capacity, operation mode, etc. of the power supply (11) of the aerosol generating device (1) via a display of the external device.

[0314] An external device may transmit a location search request to the aerosol generating device (1) based on an input that initiates location search of the aerosol generating device (1). When receiving a location search request from the external device, the control unit (12) may control at least one of the output devices to perform an operation corresponding to the location search based on the received location search request. For example, in response to the location search request, the haptic unit (142) may generate vibration. For example, in response to the location search request, the display (141) may output an object corresponding to the location search and the end of the search.

[0315] The control unit (12) can control to perform a firmware update when receiving firmware data from an external device. The external device can check the current version of the firmware of the aerosol generating device (1) and determine whether a new version of the firmware exists. When an input requesting firmware download is received, the external device can receive a new version of the firmware data and transmit the new version of the firmware data to the aerosol generating device (1). The control unit (12) can control to perform a firmware update of the aerosol generating device (1) upon receiving a new version of the firmware data.

[0316] The control unit (12) can transmit data on the sensing value of at least one sensor (13) to an external server (not shown) through the communication unit (16), and receive and store a learning model generated by learning the sensing value through machine learning such as deep learning from the server. The control unit (12) can perform an operation of determining a user's inhalation pattern, an operation of generating a temperature profile, etc. using the learning model received from the server. The control unit (12) can store, in the memory (17), the sensing value data of at least one sensor (13) and data for learning an artificial neural network (ANN). For example, the memory (17) can store a database for each component provided in the aerosol generating device (1) for learning the artificial neural network (ANN), and weights and biases forming the artificial neural network (ANN) structure. The control unit (12) can learn data on the sensing values ​​of at least one sensor (13), the user's suction pattern, the temperature profile, etc., stored in the memory (17), and generate at least one learning model used for determining the user's suction pattern, generating the temperature profile, etc.

[0317] Any or all of the embodiments of the present disclosure described above are not mutually exclusive or distinct. Any or all of the embodiments of the present disclosure described above may have their respective components or functions combined or used together.

[0318] For example, it means that a configuration A described in a particular embodiment and / or drawing can be combined with a configuration B described in another embodiment and / or drawing. That is, even if a combination between configurations is not directly described, it means that a combination is possible, except in cases where a combination is described as impossible.

[0319] The above detailed description should not be construed as limiting in any respect and should be considered illustrative only. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are intended to be included within the scope of the present invention.

Claims

1. A body including an insertion space for accommodating an aerosol generating article; A heater for generating heat to heat the aerosol generating article accommodated in the insertion space; A first insulating member surrounding at least a portion of the heater and blocking heat generated from the heater from being transmitted to the user; and A bracket is disposed spaced apart from the heater and supports the first insulation portion; An aerosol generating device, wherein the first insulation part comprises a first heat-conducting layer for dispersing heat absorbed from the heater through heat conduction, and a first heat-blocking layer for blocking heat transferred to the first heat-conducting layer from being transferred to the outside so that the heat can remain in the first heat-conducting layer.

2. In paragraph 1, An aerosol generating device, wherein the first heat-conducting layer and the first heat-insulating layer are in contact with each other and are sequentially arranged in a direction from the inside to the outside of the body.

3. In paragraph 1, An aerosol generating device, wherein the first insulation portion is disposed spaced apart from the inner surface of the body.

4. In paragraph 1, The first heat barrier layer includes a first region and a second region which are separated from each other and arranged facing each other, An aerosol generating device, wherein the first heat-conducting layer is disposed on the inner side of the second region of the first heat-insulating layer.

5. In paragraph 1, Further comprising a second insulating member arranged on the outside of the first insulating member, An aerosol generating device, wherein the second insulation part comprises a second heat-conducting layer that absorbs heat and spreads it to the whole surface through heat conduction, and a second heat-blocking layer that blocks heat transferred to the second heat-conducting layer from being transferred to the outside so that the heat can remain in the second heat-conducting layer.

6. In paragraph 5, An aerosol generating device, wherein the first heat-conducting layer, the first heat-blocking layer, the second heat-conducting layer, and the second heat-blocking layer are sequentially arranged in contact with each other in a direction from the inside to the outside of the body.

7. In paragraph 6, Further comprising a third insulation part arranged on the outside of the second insulation part, An aerosol generating device, wherein the first insulation portion, the second insulation portion, and the third insulation portion are sequentially arranged in contact with each other in a direction from the inside to the outside of the body.

8. In paragraph 5, An aerosol generating device, wherein the second insulation portion is disposed spaced apart from the inner surface of the body.

9. In paragraph 1, Further comprising a first cover surrounding the heater at a predetermined distance from the heater and accommodating at least a portion of the heater; An aerosol generating device, wherein the above bracket is positioned spaced apart from the first cover.

10. In paragraph 9, An aerosol generating device, wherein the first cover includes one or more grooves on the outer surface.

11. In paragraph 9, Further comprising a second cover surrounding the first cover and positioned spaced apart from the outer surface of the first cover, An aerosol generating device, wherein the above bracket is positioned spaced apart from the second cover.

12. In paragraph 11, An aerosol generating device, wherein the second cover includes an inner wall facing the first cover, an outer wall at least partly spaced apart from the inner wall, and an insulating space formed between the inner wall and the outer wall.

13. In paragraph 11, An aerosol generating device further comprising an airflow passage portion disposed on the inner surface of the first cover and supported by the first cover.

14. In paragraph 1, The bracket includes a first member having a cylindrical shape surrounding the heater, and a second member that is coupled to a side portion of the first member and one end of the first member to block the open end of the first member. An aerosol generating device, wherein the first member comprises one or more grooves on an outer surface.

15. In paragraph 1, The bracket includes a first extension portion surrounding the heater, a second extension portion surrounding the first extension portion, and a connecting portion connecting the first extension portion and the second extension portion. An aerosol generating device, wherein a first insulation portion is disposed between the first extension portion and the second extension portion.

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