Aerosol generator

Abstract

The aerosol generating apparatus includes a main body including an insertion space for containing an aerosol product, a heater for generating heat to heat the aerosol product contained in the insertion space, a first insulating section surrounding at least a portion of the heater to block the transfer of heat generated from the heater to the user, and a bracket positioned away from the heater to support the first insulating section, the first insulating section including a first thermal conduction layer for dispersing heat absorbed from the heater through thermal conduction, and a first thermal barrier layer for blocking the transfer to the outside so that the heat transferred to the first thermal conduction layer remains in the first thermal conduction layer.

Description

Technical Field

[0001] Various embodiments of the present invention relate to an aerosol generating device, and more particularly, to an aerosol generating device having a heat insulation structure.

Background Art

[0002] Recently, the demand for alternative methods to overcome the disadvantages of conventional cigarettes has been increasing. For example, there is an increasing demand for a system that generates an aerosol by heating a cigarette or an aerosol generating substance using an aerosol generating device, rather than by burning a cigarette to generate an aerosol. As a result, research on heated aerosol generating devices has been actively conducted.

[0003] An aerosol generating device that generates an aerosol by generating heat includes a heater that generates heat. When the temperature of the heater rises, a user who holds the aerosol generating device feels hot air. A structure for heat insulation is required around the heater so that the heat generated by the heater is not transmitted to the user.

Summary of the Invention

Problems to be Solved by the Invention

[0004] An embodiment provides an aerosol generating device in which a heat insulation 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 will be clearly understood by those having ordinary knowledge in the technical field to which the embodiments belong from the present specification and the accompanying drawings.

Means for Solving the Problems

[0006] An aerosol generating apparatus according to one embodiment includes a main body including an insertion space for containing an aerosol product, a heater for generating heat to heat the aerosol product contained in the insertion space, a first insulating section surrounding at least a portion of the heater to block the transfer of heat generated from the heater to the user, and a bracket disposed away from the heater to support the first insulating section, wherein the first insulating section may include a first thermal conduction layer for dispersing heat absorbed from the heater through thermal conduction, and a first thermal barrier layer for blocking the transfer to the outside so that the heat transferred to the first thermal conduction layer remains in the first thermal conduction layer. [Effects of the Invention]

[0007] According to the embodiment of the aerosol generating device, it is possible to block the transfer of heat to the outside of the aerosol generating device and protect the hands of the user using the aerosol generating device from heat.

[0008] Furthermore, according to the embodiment of the aerosol generating apparatus, it is possible to prevent a specific part of the aerosol generating apparatus from overheating compared to other parts.

[0009] The effects of the embodiments are not limited to those described above, and any effects not mentioned will be clearly understood by a person with ordinary skill in the art to which the embodiments pertain from this specification and the accompanying drawings. [Brief explanation of the drawing]

[0010] [Figure 1A] These are drawings illustrating an aerosol generating apparatus according to various embodiments of the present invention. [Figure 1B] These are drawings illustrating an aerosol generating apparatus according to various embodiments of the present invention. [Figure 1C] These are drawings illustrating an aerosol generating apparatus according to various embodiments of the present invention. [Figure 2A] This is a drawing showing an aerosol generating apparatus according to another embodiment of the present invention. [Figure 2B]This is a drawing showing an aerosol generating apparatus according to another embodiment of the present invention. [Figure 3A] These are drawings showing an aerosol generating apparatus according to yet another embodiment of the present invention. [Figure 3B] These are drawings showing an aerosol generating apparatus according to yet another embodiment of the present invention. [Figure 4] This is a cross-sectional view of an aerosol generating apparatus according to one embodiment to which an example of a heat insulating structure is applied. [Figure 5] This is a drawing illustrating another example of an insulation structure. [Figure 6A] This is a perspective view of an aerosol generating apparatus according to one embodiment. [Figure 6B] This is an exploded cross-sectional view of an aerosol generating apparatus according to one embodiment, taken by cutting along the cross-sectional line A-A' shown in Figure 6A. [Figure 6C] Figure 6B is a coupled cross-sectional view of the aerosol generating apparatus shown. [Figure 7A] This is a perspective view of an aerosol generating apparatus according to another embodiment. [Figure 7B] This is an exploded cross-sectional view of an aerosol generating apparatus according to another embodiment, cut along the cross-sectional line B-B' shown in Figure 7A. [Figure 7C] Figure 7B is a coupled cross-sectional view of the aerosol generator shown. [Figure 8A] This is a perspective view of an aerosol generating apparatus according to another embodiment. [Figure 8B] Furthermore, Figure 8A shows an exploded cross-sectional view of an aerosol generating apparatus according to another embodiment, cut along the cross-sectional line C-C'. [Figure 8C] Figure 8B is a coupled cross-sectional view of the aerosol generating apparatus shown. [Figure 9] This is a block diagram of an aerosol generating apparatus according to yet another embodiment of the present invention. [Modes for carrying out the invention]

[0011] The terms used in the embodiments are selected as general terms that are currently widely used as much as possible while considering the functions in the present invention. However, this may vary depending on the intentions or precedents of those skilled in the art, the emergence of new technologies, etc. Also, in certain cases, there are terms arbitrarily selected by the applicant, and in such cases, the meaning thereof will be described in detail in the description part of the invention. Therefore, the terms used in the present invention are not merely the names of the terms and must be defined based on the meaning the terms have and the overall content of the present invention.

[0012] Throughout the specification, when a certain part "includes" a certain component, unless there is a particularly contrary description, it does not exclude other components and may further include other components. Also, terms such as "… part" and "… module" described in the specification mean units that process at least one function or operation, and these are implemented by hardware or software, or by the combination of hardware and software.

[0013] As used in this specification, when an expression such as "at least any one of" is in front of the arranged components, it modifies the entire components that are not each of the arranged components. For example, the expression "at least any one of a, b, and c" must be interpreted to include a, b, c, or a and b, a and c, b and c, or a and b and c.

[0014] Also, in explaining the embodiments disclosed in this specification, when it is determined that a specific description of such known technology obscures the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. Also, the attached drawings are merely for facilitating the understanding of the embodiments disclosed in this specification, and the technical idea disclosed in this specification is not limited by the attached drawings, and it must be understood to include all modifications, equivalents, or alternatives included in the idea and technical scope of the present invention.

[0015] Terms including ordinal numbers, such as "first," "second," etc., can be used to describe a variety of components, but the components are not limited by such terms. The terms are simply used to distinguish one component from another.

[0016] When it is mentioned that one component is "linked" or "connected" to another component, it must be understood that it is either directly linked to the other component, or connected but with other components in between. On the other hand, when it is mentioned that one component is "directly linked" or "directly connected" to another component, it must be understood that there are no other components in between.

[0017] A singular expression includes plural expressions unless the context clearly indicates otherwise.

[0018] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings, so that they can be easily implemented by a person with ordinary skill in the art. Regardless of the reference numerals in the drawings, identical or similar components will be given the same reference numeral, and redundant descriptions thereof will be omitted.

[0019] The present invention may be implemented in a form that can be embodied in the aerosol generating apparatus of the various embodiments described above, or in various different forms, and is not limited to the embodiments described herein.

[0020] Embodiments of the present invention will be described in detail below with reference to the drawings.

[0021] Figures 1A to 1C illustrate aerosol generating apparatus according to various embodiments of the present invention.

[0022] Referring to Figure 1A, the aerosol generating device 1 according to an embodiment of the present invention may include at least one of a power supply 11, a control unit 12, a sensor 13, and a heater 18. At least one of the power supply 11, the control unit 12, the sensor 13, and the heater 18 may be located inside the main body 10 of the aerosol generating device 1.

[0023] The main body 10 can provide a space that opens upwards into which a stick S, which is an aerosol product, can be inserted. The space that opens upwards is also referred to as the insertion space. The insertion space is formed by recessing inwards to a predetermined depth so that at least a portion of the stick S can be inserted. The depth of the insertion space corresponds to the length of the region in the stick S that contains the aerosol-generating substance and / or medium.

[0024] The lower end of the stick S is inserted into the main body 10, and the upper end of the stick S protrudes outside the main body 10. The user can inhale air by putting the exposed upper end of the stick S into their mouth.

[0025] The heater 18 can heat the stick S. The heater 18 may extend upward in the space into which the stick S is inserted. For example, the heater 18 may include a tubular heating element, a plate heating element, a needle heating element, or a rod heating element. The heater 18 may be inserted into the bottom of the stick S. The heater 18 may include an electrical resistance heater and / or an induction heating heater.

[0026] For example, referring to Figure 1A, heater 18 is also a resistive heater. For example, heater 18 includes a conductive track, and heater 18 is heated when current flows through the conductive track. Heater 18 can be electrically connected to a power supply 11. Heater 18 can be directly heated by current supplied from the power supply 11.

[0027] For example, heater 18 is also a multiple heater. Heater 18 may include a first heater and a second heater. The first and second heaters may be arranged side by side along the longitudinal direction. The first and second heaters may be heated sequentially or simultaneously.

[0028] For example, referring to Figure 1B, the aerosol generator 1 includes an induction coil 181 surrounding a heater 18. The induction coil 181 can generate heat in the heater 18. The heater 18 is a susceptor, and the heater 18 can be heated by a magnetic field generated by an AC current flowing through the induction coil 181. The magnetic field penetrates the heater 18, generating eddy currents within the heater 18. The current generates heat in the heater 18.

[0029] For example, referring to Figure 1C, a susceptor SS is included inside the stick S, and the susceptor SS inside the stick S may be heated by the magnetic field generated by the AC current flowing through the induction coil 181. The susceptor SS is located inside the stick S and does not need to be electrically connected to the aerosol generator 1. The susceptor SS may be inserted into the insertion space together with the stick S and removed from the insertion space together with the stick S. The stick S may be heated by the susceptor SS inside the stick S. In this case, the aerosol generator 1 does not need to be equipped with a heater 18.

[0030] The power supply 11 can supply power to the components of the aerosol generator 1 so that they can operate. The power supply 11 is also referred to as a battery. The power supply 11 can supply power to at least one of the control unit 12, the sensor 13, and the heater 18. If the aerosol generator 1 includes an induction coil 181, the power supply 11 can supply power to the induction coil 181.

[0031] The control unit 12 can control the overall operation of the aerosol generator 1. The control unit may be mounted on a printed circuit board (PCB). The control unit 12 can control the operation of at least one of the following: 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, and other components provided in the aerosol generator 1. The control unit 12 can check the state of each component of the aerosol generator 1 and determine whether the aerosol generator 1 is in an operational state.

[0032] The control unit 12 can analyze the results sensed by the sensor 13 and control subsequent processing. For example, based on the results sensed by the sensor 13, the control unit 12 can control the power supplied to the heater 18 so that the heater 18 starts or stops operating. For example, based on the results sensed by the sensor 13, the control unit 12 can control the amount of power supplied to the heater 18 and the power supply time so that the heater 18 is heated to a predetermined temperature or maintains an appropriate temperature.

[0033] Sensor 13 may include at least one of a temperature sensor, a puff sensor, an insertion sensor, or an acceleration sensor. For example, sensor 13 can sense at least one of the following: the temperature of the heater 18, the temperature of the power supply 11, or the temperature inside or outside the main body 10. For example, sensor 13 can sense the user's puff. For example, sensor 13 can sense whether or not the stick S is inserted into the insertion space. For example, sensor 13 can sense the movement of the aerosol generator 1.

[0034] Figures 2A and 2B show an aerosol generating apparatus according to another embodiment of the present invention.

[0035] At least one of the components of the aerosol generator 1 shown in Figures 2A and 2B is identical or similar to at least one of the components of the aerosol generator 1 shown in Figures 1A to 1C, and therefore, redundant explanations will be omitted below.

[0036] Referring to Figure 2A, the heater 18 may extend upward around the space into which the stick S is inserted. For example, the heater 18 is tubular with a hollow interior. The heater 18 may be positioned around the insertion space. The heater 18 may be positioned to surround at least a portion of the insertion space. The heater 18 can heat the insertion space or the outside of the stick S inserted into the insertion space. The heater 18 includes an electrical resistance heater and / or an induction heater.

[0037] Referring to Figure 2B, the aerosol generator 1 includes an induction coil 181 surrounding the heater 18. Since the details of the induction coil 181 have been described above, a further explanation of the induction coil 181 will be omitted.

[0038] Figures 3A and 3B show an aerosol generating apparatus according to yet another embodiment of the present invention.

[0039] At least one of the components of the aerosol generator 1 shown in Figures 3A and 3B is identical or similar to at least one of the components of the aerosol generator 1 shown in Figures 1A to 1C, and therefore, redundant explanations will be omitted below.

[0040] Referring to Figure 3A, the aerosol generator 1 may further include a cartridge 19.

[0041] Cartridge 19 contains an aerosol-generating substance that is in one of the following states: liquid, solid, gaseous, or gel. The aerosol-generating substance may include a liquid composition. For example, the liquid composition may be a liquid containing a tobacco-containing substance that includes volatile tobacco flavor components, or a liquid containing a non-tobacco substance.

[0042] For example, a liquid composition may include water, solvent, ethanol, plant extracts, fragrances, flavoring agents, or vitamin mixtures. Fragrances may include, but are not limited to, menthol, peppermint, spearmint oil, and various fruit fragrance components. Flavoring agents may include components that provide users with a variety of flavors or aromas. Vitamin mixtures may also be mixtures of at least one of vitamins A, B, C, and E, but are not limited to these. Furthermore, a liquid composition may include aerosol-forming agents such as glycerin and propylene glycol.

[0043] The cartridge 19 is either integrally formed with the main body 10 or detachably attached to the main body 10. For example, the cartridge 19 can be attached to the main body 10 by being inserted into the main body 10. However, it is not limited to this, and may be fixed in place so that it cannot be attached or detached by the user.

[0044] The cartridge can be attached to the main unit with the aerosol-generating substance already inside. However, it is not limited to this; the aerosol-generating substance can also be injected into the cartridge while it is attached to the main unit.

[0045] Referring to Figure 3A, the cartridge 19 is integrally formed with the main body 10 and can communicate with the insertion space through the airflow channel CN.

[0046] Referring to Figure 3B, a space is formed on one side of the main body 10, and at least a portion of the cartridge 19 is inserted into the space formed on one side of the main body 10, thereby mounting the cartridge 19 to the main body 10. The airflow channel CN ​​is defined by a portion of the cartridge and / or a portion of the main body 10, and the cartridge 19 can communicate with the insertion space through the airflow channel CN.

[0047] On the other hand, the aerosol generator 1 shown in Figure 3A is shown with its components arranged in a single line. The aerosol generator 1 shown in Figure 3B is shown with the cartridge 19 and heater 18 arranged in parallel. However, the internal structure of the aerosol generator 1 is not limited to what is shown. In other words, the arrangement of the power supply 11, control unit 12, sensor 13, heater 18 and cartridge 19 can be changed depending on the design of the aerosol generator 1.

[0048] The main unit 10 may be constructed in such a way that outside air flows into the main unit 10 when the cartridge 19 is inserted. In this case, the outside air that flows into the main unit 10 can pass through the cartridge 19 and flow into the user's mouth.

[0049] The cartridge 19 includes a storage section C0 containing an aerosol-generating substance and / or a heater 24 for heating the aerosol-generating substance in the storage section C0. A liquid transfer means impregnated with (containing) the aerosol-generating substance is disposed inside the storage section C0. Here, the liquid transfer means includes a wick such as cotton fibers, ceramic fibers, glass fibers, or porous ceramic. The conductive track of the heater 24 may be formed as a coiled structure that winds the liquid transfer means, or as a structure that contacts one side of the liquid transfer means. The heater 24 is also referred to as the cartridge heater 24.

[0050] The cartridge 19 is activated by an electrical or wireless signal transmitted from the main unit 10, thereby converting the phase of the aerosol-generating substance inside the cartridge to a gas phase and generating an aerosol. In this case, the aerosol refers to a gaseous state in which vaporized particles generated from the aerosol-generating substance and air are mixed.

[0051] Aerosol can be generated by heating the liquid transfer means and the liquid composition absorbed therein using the cartridge heater 24. In this case, aerosol can also be generated by heating the stick S with the heater 18. As the aerosol generated by the cartridge heater 24 and heater 18 passes through the stick S, tobacco substances are added to the aerosol, and the aerosol with added tobacco substances is inhaled into the user's mouth through one end of the stick S.

[0052] The aerosol generator 1 is equipped only with a cartridge heater 24, and the main body 10 is not equipped with a heater 18. In this case, the aerosol generated by the cartridge heater 24 passes through the stick S, is mixed with tobacco substances, and is inhaled into the user's mouth.

[0053] The aerosol generator 1 includes a cap (not shown). The cap is detachably attached to the main body 10 so as to cover at least a portion of the cartridge 19 which is coupled to the main body 10. The stick S is inserted into the main body 10 through the cap.

[0054] The power supply 11, along with the configuration described above, can supply power to the cartridge 24. The control unit 12, along with the configuration described above, can control the operation of the cartridge 19. Based on the results sensed by the sensor 13, 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 heater 18 starts or stops. For example, based on the results sensed by the sensor 13, the control unit 12 can control the amount of power supplied to the cartridge heater 24 and the power supply time so that the cartridge heater 24 is heated to a predetermined temperature or maintains an appropriate temperature.

[0055] In addition to the configuration described above, sensor 13 may further include at least one of the following: a color sensor, a cartridge sensing sensor, or a cap sensing sensor. For example, sensor 13 can sense the temperature of the cartridge heater 24. For example, sensor 13 can sense the hue of a part of the flaps that cover the outside of the stick S. For example, sensor 13 can sense whether or not the cartridge 19 is installed. For example, sensor 13 can sense whether or not the cap is installed.

[0056] On the other hand, the aerosol generator 1 may further include general-purpose components in addition to the power supply 11, control unit 12, sensor 13, heater 18, and cartridge 19. For example, as mentioned above, the aerosol generator 1 includes a display capable of outputting visual information and / or a motor for outputting tactile information. Furthermore, the aerosol generator 1 is constructed in such a way that outside air flows in or internal gas flows out even when the stick S is inserted.

[0057] Although not shown in the diagram, the aerosol generator 1 may be configured with a separate cradle. For example, the cradle may be used to charge the power supply 11 of the aerosol generator 1. Alternatively, the heater 18 may be heated while the cradle and the aerosol generator 1 are coupled together.

[0058] Stick S is similar to a typical combustible cigarette. For example, Stick S is divided into a first part S1 containing aerosol-generating material and a second part S2 containing a filter, etc.

[0059] The first part S1 may be made of a sheet, a strand, or shredded tobacco obtained by cutting a tobacco sheet into small pieces. The first part S1 may also be surrounded by a heat conductive material. For example, the heat conductive material may be, but is not limited to, a metal foil such as aluminum foil. The first part S1 may hereafter be referred to as the “medium part” or “tobacco rod.”

[0060] The second part S2 is a cellulose acetate filter. The second part S2 consists of at least one segment. For example, the second part S2 may include a first segment for cooling the aerosol and a second segment for filtering out predetermined components contained in the aerosol. The second part S2 may be referred to as the "filter rod" below.

[0061] Depending on the embodiment, the second part S2 of the stick S may also contain an aerosol-generating substance. For example, an aerosol-generating substance made in the form of granules or capsules may be inserted into the second part S2.

[0062] The entire first part S1 is inserted into the aerosol generator 1, while the second part S2 is exposed to the outside. Alternatively, only a portion of the first part S1 may be inserted into the aerosol generator 1, or the entire first part S1 and a portion of the second part S2 may be inserted. The user inhales the aerosol with the second part S2 in their mouth. At this time, the aerosol is generated as outside air passes through the first part S1, and the generated aerosol is transmitted to the user's mouth by passing through the second part S2.

[0063] Figure 4 is a cross-sectional view of an aerosol generating apparatus according to one embodiment to which an example of a heat insulating structure is applied.

[0064] Referring to Figure 4, an aerosol generating apparatus according to one embodiment may include a main body 1100, a heater assembly 1200, a bracket 1500, and a heat insulating section 1700.

[0065] The main body 1100 forms the overall appearance of the aerosol generator 1 and may include an internal space where the components of the aerosol generator 1 are arranged. Although only embodiments in which the main body 1100 is formed in a rectangular prism shape are shown in the drawings, the shape of the main body 1100 is not limited thereto, and for example, the main body 1100 may be formed in an overall cylindrical or polygonal prism shape.

[0066] The main body 1100 may include an opening into which the aerosol product S is inserted. At least a portion of the aerosol product S may be inserted into or contained within the main body 1100 through the opening.

[0067] The main body 1100 may include an insertion space 1100i for containing the aerosol product S. The insertion space 1100i may be formed in the upper part of the main body 1100. The insertion space 1100i may be open on the upper side and connected to the opening.

[0068] The insertion space 1100i may have a cylindrical shape that is elongated vertically. At least a portion of the aerosol product S can be contained inside the main body 1100 through the upper opening of the insertion space 1100i. In this case, the depth of the insertion space 1100i may correspond to the length of the region in the aerosol product S that contains the aerosol-generating substance or medium.

[0069] The heater assembly 1200 is located in the internal space of the main body 1100 and can generate an aerosol by heating the aerosol product S that is inserted into the housing through the opening.

[0070] The heater assembly 1200 may include a heater 1210 that generates heat when power is supplied, as well as support parts and covers around the heater 1210. Figure 4 shows only the heater 1210 and cover 1250 in a simplified manner.

[0071] The heater 1210 is configured to generate heat and heat the aerosol product S contained in the insertion space 1100i. The heater 1210 can generate aerosols from the aerosol product S. The heater 1210 may be extended vertically along the insertion space 1100i.

[0072] According to one embodiment, as an example, the heater 1210 is a cylindrical heater 1210 that surrounds at least a portion of the insertion space 1100i. The heater 1210 can heat the outer surface of the aerosol product S contained in the insertion space 1100i. In this case, the heater 1210 is an electrical resistance heater.

[0073] However, the embodiments are not limited to the shape and arrangement of the heater 1210. As another example, the heater 1210 can be inserted inside the aerosol product S and heat the inside of the aerosol product S contained in the insertion space 1100i.

[0074] As another example, the heater assembly 1200 includes an induction coil (not shown) that generates an induction magnetic field toward the heater 1210, in which case the heater 1210 is a susceptor that generates heat due to the induction magnetic field.

[0075] At least one region of the aerosol product S contained in the insertion space 1100i is heated by the heater 1210, and an aerosol can be generated by mixing vaporized particles generated by heating the aerosol product S with air flowing into the internal space of the main body 1100 through an air inlet (for example, an opening in the main body 1100) formed in one region of the main body 1100.

[0076] On the other hand, heater 1210 is a cartridge heater (for example, cartridge heater 24 in Figures 3A and 3B). In this case, the aerosol product S is not a cigarette or stick, but cartridge 19 in Figures 3A and 3B.

[0077] The cover 1250 forms a part of the exterior of the heater assembly 1200 (for example, the outer circumferential surface of the heater assembly 1200) and can function to house and protect the components of the heater assembly 1200.

[0078] The cover 1250 may include an insertion space 1100i for containing the aerosol product S. In this case, the insertion space 1100i is not only the space surrounded by the cover 1250, but also the space surrounded by the heater 1210 located inside the cover 1250.

[0079] The cover 1250 can surround the heater 1210. The cover 1250 may be open in the longitudinal direction (e.g., the z-axis direction) of the heater 1210. As a result, the cover 1250 may include a cylindrical shape that is open in the z-axis direction.

[0080] The cover 1250 can block the transfer of heat generated from the heater 1210 to the outside. To improve the efficiency of the insulation, the cover 1250 may be positioned at a distance from the outside of the heater 1210. The space between the cover 1250 and the heater 1210 is referred to as the first insulated space G1.

[0081] The first adiabatic space G1 is placed in a vacuum state to minimize heat transfer to the outside of the aerosol generator 1. Here, "vacuum state" does not mean only a state where there is absolutely no air, but may also include a state of pressure lower than the ambient atmospheric pressure. However, the embodiments are not limited to a vacuum state. In some embodiments, the first adiabatic space G1 may be filled with air.

[0082] The bracket 1500 is configured to support the heater assembly 1200. The bracket 1500 can also block the transfer of heat generated from the heater 1210 or heater assembly 1200 to the outside. The bracket 1500 can be made of a plastic material that does not conduct heat well, or a metal material coated with a thermal barrier material on its surface.

[0083] To improve insulation efficiency, the bracket 1500 may be positioned away from the outside of the heater assembly 1200. That is, the bracket 1500 may be positioned away from the cover 1250. If the heater assembly 1200 consists only of the heater 1210, the bracket 1500 may be positioned away from the heater 1210.

[0084] The space between the bracket 1500 and the heater assembly 1200 is referred to as the second insulated space G2. The second insulated space G2 is placed under vacuum to minimize heat transfer to the outside of the aerosol generator 1. However, the embodiment is not limited to a vacuum state. In some cases, the second insulated space G2 may be filled with air. On the other hand, the distance between the bracket 1500 and the heater assembly 1200 is about 0.2 cm to 1 cm. However, the embodiment is not limited to this range.

[0085] The heat-insulating section 1700 surrounds at least a portion of the heater 1210 or heater assembly 1200, and is configured to block the transfer of heat generated from the heater 1210 to the user.

[0086] The thermal insulation portion 1700 may be coupled to the bracket 1500. As shown in the figures, the thermal insulation portion 1700 may be coupled to the outer surface of the bracket 1500. This allows the bracket 1500 to support the thermal insulation portion 1700. However, the embodiments are not limited to those shown. As another example, the thermal insulation portion 1700 may be coupled to the inner surface of the bracket 1500.

[0087] To improve the efficiency of thermal insulation, the thermal insulation section 1700 may be positioned at a distance from the inner surface of the main body 1100. The space between the thermal insulation section 1700 and the inner surface of the main body 1100 is referred to as the third thermal insulation space G3. The third thermal insulation space G3 is placed in a vacuum state to minimize heat transfer to the outside of the aerosol generator 1. However, the embodiment is not limited to a vacuum state. In some cases, the third thermal insulation space G3 may be filled with air. On the other hand, the distance between the thermal insulation section 1700 and the inner surface of the main body 1100 is approximately 0.1 cm to 0.5 cm. However, the embodiment is not limited to this range.

[0088] The heat insulating section 1700 may include a heat conductive layer 1710 and a heat insulating layer 1720. The heat conductive layer 1710 absorbs heat generated from the heater 1210 or heater assembly 1200 and disperses the absorbed heat through heat conduction. The heat insulating layer 1720 blocks the heat generated from the heater 1210 or heater assembly 1200.

[0089] Before specifically describing the heat conduction layer 1710 and the heat barrier layer 1720, it should be noted that the heater 1210 is not heated uniformly, and there are temperature differences between parts. In other words, the degree to which heat is dissipated differs for each part of the heater 1210.

[0090] If we refer to the part of heater 1210 that dissipates heat relatively large as the "high-temperature part of the heater," and the other part of heater 1210 that dissipates heat relatively small as the "low-temperature part of the heater," then inside the aerosol generator 1, the part of heater 1210 adjacent to the high-temperature part will be heated to a higher temperature than the part of heater 1210 adjacent to the low-temperature part.

[0091] As a result, certain parts inside the aerosol generator 1 may become overheated. These overheated parts can be called hot spots. In other words, hot spots can occur inside the aerosol generator 1. Hot spots can cause failures of components or parts inside the device.

[0092] Hot spots can also affect the outside of the main unit 1100. Specifically, hot spots can release more heat than other parts. Therefore, typical insulation structures have limitations in completely blocking the heat released from hot spots. The heat that is not blocked inside the aerosol generator 1 is released to the outside of the device, causing a portion of the main unit 1100 adjacent to the hot spot to become hot. As a result, the user may feel excessive heat in a specific part of the main unit 1100. Furthermore, as time passes and the heat diffuses along the main unit 1100, the overall external temperature of the main unit 1100 eventually rises.

[0093] To prevent such phenomena, it is necessary to block heat from being released to the outside of the main body 1100, and to uniformly distribute the heat inside the aerosol generator 1 to prevent the occurrence of hot spots.

[0094] The heat conduction layer 1710 absorbs heat generated from the heater 1210 or heater assembly 1200 and disperses the heat across its entire surface through heat conduction. In other words, the heat absorbed by the heat conduction layer 1710 can be conducted along the heat conduction layer 1710 across its entire surface. As a result, heat can be dispersed over a wide area inside the aerosol generator 1.

[0095] Since the heat conduction layer 1710 is positioned to surround the heater 1210 or heater assembly 1200, one portion of the heat conduction layer 1710 can be adjacent to the high-temperature portion of the heater 1210, while another portion can be adjacent to the low-temperature portion of the heater 1210. In other words, when the heat conduction layer 1710 absorbs heat from the heater 1210, the heat can be absorbed non-uniformly throughout the entire heat conduction layer 1710. As a result, one portion of the heat conduction layer 1710 has a relatively high temperature, while another portion of the heat conduction layer 1710 has a relatively low temperature.

[0096] However, due to the thermal conductivity characteristics, heat moves from areas of higher temperature to areas of lower temperature and is dispersed throughout the thermal conductive layer 1710, while the heat released from the thermal conductive layer 1710 can be released uniformly across the entire region of the thermal conductive layer 1710.

[0097] On the other hand, 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 conduction layer 1710. As a result, the heat conduction layer 1710 can absorb the newly released heat from the heater assembly 1200 before the heat is evenly distributed along the heat conduction layer 1710.

[0098] In this case, in a portion of the heat conduction layer 1710 adjacent to the high-temperature area of ​​the heater 1210, the rate at which heat is absorbed by the heat conduction layer 1710 is faster than the rate at which heat is dispersed along the heat conduction layer 1710. As a result, the temperature of this portion becomes relatively higher than that of other portions of the heat conduction layer 1710. In other words, hot spots can occur despite the arrangement of the heat conduction layer 1710. To prevent the occurrence of hot spots, sufficient time must be ensured for heat to be evenly dispersed along the heat conduction layer 1710.

[0099] A thermal barrier layer 1720 may be provided to ensure sufficient time for the thermal conductive layer 1710 to distribute heat uniformly. The thermal barrier layer 1720 may be positioned adjacent to and opposite the thermal conductive layer 1710. Specifically, the thermal barrier layer 1720 may be positioned so as to be in contact with the thermal conductive layer 1710.

[0100] The thermal conductive layer 1710 and the thermal barrier layer 1720 may be arranged sequentially in a direction from the inside to the outside of the main body 1100. That is, the thermal barrier layer 1720 may be positioned closer to the outside of the main body 1100 than the thermal conductive layer 1710, and the thermal conductive layer 1710 may be positioned closer to the inside of the main body 1100 than the thermal barrier layer 1720.

[0101] The thermal barrier layer 1720 can block the transfer of heat emitted from the thermal conduction layer 1710 to the outside. Specifically, the thermal barrier layer 1720 can block the transfer of heat from the heater 1210 or heater assembly 1200 to the thermal conduction layer 1710 to the outside, so that the heat remains in the thermal conduction layer 1710. If the transfer of heat is blocked by the thermal barrier layer 1720, the heat can be dispersed along the thermal conduction layer 1710 in contact with the thermal barrier layer 1720.

[0102] Even if the thermal barrier layer 1720 does not completely block the heat emitted from the thermal conduction layer 1710, the heat partially blocked by the thermal barrier layer 1720 remains in the thermal conduction layer 1710, allowing the heat to be distributed across the entire surface of the thermal conduction layer 1710. In other words, the presence of the thermal barrier layer 1720 allows the thermal conduction layer 1710 to have time to distribute the heat across its entire surface.

[0103] In summary, the heat-insulating section 1700 can essentially prevent external heat from escaping from the aerosol generator 1 through the heat-insulating layer 1720. Furthermore, even if the heat-insulating section 1700 cannot prevent some heat from escaping, it can disperse heat throughout the entire device through the heat-conducting layer 1710. As a result, the heat-insulating section 1700 can prevent the occurrence of hot spots and ultimately prevent the main body 1100 from becoming hot due to hot spots.

[0104] The thermal conductive layer 1710 may include a variety of materials with high thermal conductivity. The thermal insulating layer 1720 may include a variety of materials with excellent heat insulating properties. As shown in the illustration, the thermal conductive layer 1710 and the thermal insulating layer 1720 each consist of a film or tape. One surface of the thermal conductive layer 1710 may be attached to the outer surface of the bracket 1500, and one surface of the thermal insulating layer 1720 may be attached to the other surface of the thermal conductive layer 1710. However, the structure and form of the thermal conductive layer 1710 and the thermal insulating layer 1720 are not limited to those shown in the illustration.

[0105] Figure 5 is a diagram showing another example of an insulating structure.

[0106] Referring to Figure 5, an aerosol generating apparatus 1 according to one embodiment may include a main body 1100, a heater assembly 1200, a bracket 1500, a first heat insulating section 1700, and a second heat insulating section 1800.

[0107] At least one of the components of the aerosol generator 1 shown in Figure 5 is identical or similar to at least one of the components of the aerosol generator 1 shown in Figure 4, and therefore, redundant explanations will be omitted below.

[0108] Compared to Figure 4, the aerosol generator 1 in Figure 5 may include two heat insulating sections 1700 and 1800. The first heat insulating section 1700 may be coupled to the bracket 1500. The second heat insulating section 1800 may be coupled to the first heat insulating section 1700.

[0109] The second insulation section 1800 may be positioned outside the first insulation section 1700. In other words, the second insulation section 1800 may be positioned closer to the outside of the main body 1100 than the first insulation section 1700.

[0110] As a result, the first thermal conductive layer 1710, the first thermal barrier layer 1720, the second thermal conductive layer 1810, and the second thermal barrier layer 1820 can be arranged in sequential contact with the main body 1100 in a direction from the inside outwards.

[0111] The functions of the thermal conductive layers 1710, 1810 and the thermal barrier layers 1720, 1820, which are the lower components of the two thermal insulation sections 1700, 1800, are the same as those described in Figure 4, so their explanation will be omitted.

[0112] By arranging two insulation sections 1700 and 1800, any heat not blocked by the first insulation section 1700 can be blocked by the second insulation section 1800. In this case, the second insulation section 1800 blocks heat from being transferred to the outside and also disperses the heat over a wide area inside the aerosol generator 1, preventing the occurrence of hot spots. Therefore, the heat can be uniformly distributed throughout the aerosol generator 1, further increasing the insulation effect.

[0113] On the other hand, in order to increase the thermal insulation efficiency, the heater assembly 1200 and the bracket 1500 can be separated from each other to form a second thermal insulation space G2, and the inner surfaces of the second thermal insulation section 1800 and the main body 1100 can be separated from each other to form a third thermal insulation space G3. The explanation of the second thermal insulation space G2 and the third thermal insulation space G3 is the same as that explained in Figure 4, so it will be omitted here.

[0114] Figure 6A is a perspective view of an aerosol generator according to one embodiment. Figure 6B is an exploded cross-sectional view of an aerosol generator according to one embodiment, taken by cutting along the A-A' section shown in Figure 6A. Figure 6C is a coupled cross-sectional view of the aerosol generator shown in Figure 6B.

[0115] Referring to Figures 6A to 6C, an aerosol generating apparatus 1 according to one embodiment may include a main body 1100, a heater assembly 1200, a bracket 1500, a first heat insulating section 1700, a second heat insulating section 1800, and a third heat insulating section 1900.

[0116] At least one of the components of the aerosol generator 1 shown in Figures 6A to 6C is identical or similar to at least one of the components of the aerosol generator 1 shown in Figure 4, and therefore, redundant explanations will be omitted below.

[0117] The main body 1100 can be separated into a rear housing 1110, a front housing 1120, and an upper housing 1130. The internal components of the main body 1100 may be located between the rear housing 1110 and the front housing 1120.

[0118] In the manufacturing process of the aerosol generator 1, after the internal components of the main body 1100 are assembled, the rear housing 1110, front housing 1120, and upper housing 1130 may be assembled during the finishing stage. At this time, the rear housing 1110 and the front housing 1120 may be assembled so that they are close to each other in a direction that crosses the longitudinal direction of the main body 1100 (for example, in the y-axis direction).

[0119] Although not shown, the rear housing 1110 can cover a wider area around the main 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.

[0120] The heater assembly 1200 may include a heater 1210, an end support 1220, an airflow passage 1230, an internal cover 1240, an external cover 1250, and an upper end coupling 1260. The heater 1210 is as described above, so its explanation will be omitted.

[0121] The end support portion 1220 is positioned below the heater 1210 and can support the lower end of the aerosol product S inserted into the insertion space 1100i. Although not shown, a sensor may be positioned around the end support portion 1220. In some embodiments, the end support portion 1220 can support one end (e.g., the lower end) of the heater 1210.

[0122] The end support portion 1220 may include an inlet open to the side. For example, the inlet may be open in the +y direction. The end support portion 1220 may include an outlet open to the top. For example, the outlet may be open in the +z direction. A passage connecting the inlet to the outlet may be provided inside the end support portion 1220. Air can move through the passage.

[0123] Air can flow into the interior of the end support 1220 through the inlet. Air that flows out of the end support 1220 through the outlet can flow into the interior of the heater 1210. If an aerosol product S is inserted into the heater 1210, air that flows out of the end support 1220 can flow into one end of the aerosol product S.

[0124] The airflow passage section 1230 is configured to provide a passage for air to pass through. When air flows into the aerosol generator 1 from the outside, the air flows into the airflow passage section 1230, and the air that has moved along the airflow passage section 1230 can flow into the end support section 1220 through the inlet of the end support section 1220.

[0125] The airflow passage section 1230 may be positioned opposite the heater 1210 and the end support section 1220. The airflow passage section 1230 may be positioned parallel to the heater 1210. The extension direction of the airflow passage section 1230 is the same as the longitudinal z-axis direction of the heater 1210.

[0126] The airflow passage section 1230, the end support section 1220, and the internal insertion space 1100i of the heater 1210 can be fluid-connected. Fluid connection means that the elements are connected so that a fluid, such as air, can pass through and flow. As air moves through the airflow passage section 1230 and the end support section 1220 into the internal insertion space 1100i of the heater 1210, the air can move in a "U" shape within the heater assembly 1200.

[0127] On the other hand, although not shown in the drawings, a separate sensor may be attached to the airflow passage section 1230. In this case, the sensor may be placed inside a sensor housing and protected by the sensor housing.

[0128] In one embodiment of the aerosol generator 1, the heater assembly 1200 may have two covers 1240 and 1250. In this case, the first cover 1240 may be used interchangeably with the internal cover 1240, and the second cover 1250 may be used interchangeably with the external cover 1250. The terms "first" and "second" are used because two covers 1240 and 1250 are provided; in an embodiment where only one cover is provided, the first cover refers to the single provided cover.

[0129] The internal cover 1240 surrounds the heater 1210 at a predetermined distance from its outer surface and accommodates at least a portion of the heater 1210. The heater 1210 can be temporarily protected by the internal cover 1240.

[0130] The internal cover 1240 can support one end (e.g., the lower part) of the heater 1210. In some embodiments, the internal cover 1240, together with the end support portion 1220, can support one end of the heater 1210.

[0131] A portion of the internal cover 1240 may extend in the longitudinal direction (e.g., the z-axis direction) of the heater 1210 and surround a portion of the end support 1220 located below the heater 1210. In this case, an inlet may be located in the other portion of the end support 1220 that is not surrounded by the internal cover 1240. The airflow passage 1230 may be coupled to the other portion of the end support 1220. The internal cover 1240 may be positioned between the heater 1210 and the airflow passage 1230. In this case, the side portion of the airflow passage 1230 may be supported by the internal cover 1240.

[0132] The space between the internal cover 1240 and the heater 1210 can constitute a first insulated space G1. Furthermore, to increase the insulation efficiency, the internal cover 1240 may include one or more grooves 1241 on its outer surface. The interior of the grooves 1241 may be under vacuum or filled with air.

[0133] At least a portion of the internal cover 1240 is in contact with the airflow passage 1230, but because there is a groove for insulation between the portion in contact with the airflow passage 1230, heat can be transferred relatively slowly from the internal cover 1240 to the airflow passage 1230. Furthermore, if a groove is placed where the two components are in contact, the contact area between the two components can be reduced, thereby minimizing the transfer of heat from one component (e.g., the internal cover 1240) to the other component (e.g., the airflow passage 1230) through heat conduction.

[0134] The outer cover 1250 forms part of the exterior of the heater assembly 1200 (for example, the outer circumferential surface of the heater assembly 1200) and can house and protect the components of the heater assembly 1200. For example, the heater 1210, end support 1220, airflow passage 1230, and internal cover 1240 may be housed in the outer cover 1250. As a result, the heater 1210 can be secondarily protected by the outer cover 1250.

[0135] The outer cover 1250 can support the end support portion 1220 and the lower end of the inner cover 1240. The outer cover 1250 can support the side portion of the airflow passage portion 1230. The airflow passage portion 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.

[0136] In other words, the airflow passage 1230 may be positioned on the outer surface of the inner cover 1240 and supported by the inner cover 1240, or it may be positioned on the inner surface of the outer cover 1250 and supported by the outer cover 1250. In this case, the inside of the airflow passage 1230 is an empty space through which air passes, and therefore can function as an insulating space.

[0137] The outer cover 1250 may surround the inner cover 1240 and be positioned away from the outer surface of the inner cover 1240. The space between the inner cover 1240 and the outer cover 1250 can function as an insulating space. The outer cover 1250 may be positioned away from the bracket 1500. The space between the outer cover 1250 and the bracket 1500 constitutes a second insulating space G2.

[0138] The outer cover 1250 can block the transfer of heat generated from the heater 1210 to the outside. To improve 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 that is at least partially separated from the inner wall 1251. The space between the inner wall 1251 and the outer wall 1252 can function as an insulated space.

[0139] The upper end coupling portion 1260 is positioned on top of the heater 1210 and can form part of the exterior of the heater assembly 1200 (for example, the upper wall of the heater assembly 1200). The upper end coupling portion 1260 may be positioned on the lower part of the upper housing 1130.

[0140] A portion of the upper end coupling 1260 can be coupled to the heater 1210 and the internal cover 1240. Specifically, a portion of the upper end coupling 1260 can be coupled to the open ends of the heater 1210 and the internal cover 1240. A portion of the upper end coupling 1260 can be open to the outside of the aerosol generator 1 so that the aerosol product can pass through and be contained in the insertion space.

[0141] Another portion of the upper end coupling 1260 may be located above the airflow passage 1230. Although not shown, another portion of the upper end coupling 1260 may be open towards the top of the aerosol generator 1 so that air flows into the airflow passage 1230.

[0142] A portion of the upper end coupling 1260 and another portion of it can consequently be coupled to the open end of the outer cover 1250. The upper end coupling 1260 can partially close the open end of the outer cover 1250.

[0143] Another portion of the upper end joint 1260 may extend between the outer cover 1250 and the bracket 1500. Yet another portion of the upper end joint 1260 may be fitted between the outer cover 1250 and the bracket 1500 and supported by the outer cover 1250 and the bracket 1500. In this case, the upper end joint 1260 can close the second insulated space G2.

[0144] The bracket 1500 can be separated into a first member 1510 and a second member 1520. Specifically, the first member 1510 has a cylindrical structure that surrounds the heater 1210 or heater assembly 1200. The second member 1520 is connected to the side portion and one end of the first member 1510, and is configured to block the open end of the first member 1510.

[0145] The first member 1510 of the bracket 1500 may be positioned at a distance from the outer cover 1250. The space between the first member 1510 and the outer cover 1250 corresponds to the second thermal insulation space G2.

[0146] Furthermore, to increase thermal insulation efficiency, the first member 1510 may include one or more grooves 1511 on its outer surface. The inside of the grooves 1511 may be a vacuum or filled with air.

[0147] Although the first member 1510 is in contact with the first insulated section 1700 through various parts, the presence of grooves for insulation between each contact point allows heat to be transferred relatively slowly from the first member 1510 to the first insulated section 1700. Furthermore, if grooves are placed at the points where the two components are in contact, the contact area between the two components can be reduced. This minimizes the transfer of heat from one component (e.g., the first member 1510) to the other component (e.g., the first insulated section 1700) through heat conduction.

[0148] The second member 1520 of the bracket 1500 can function as the bottom wall of the bracket 1500. The second member 1520, functioning as the bottom wall, is fitted to the lower end of the first member 1510 and can support the lower end of the outer cover 1250. A portion of the second member 1520 may extend between the first member 1510 and the rear housing 1110. A portion of the second member 1520 may be coupled to the side portion of the first member 1510.

[0149] The first insulation section 1700 and the second insulation section 1800 can be sequentially coupled to the outer surface of the bracket 1500. In this case, the insulation sections 1700 and 1800 located near the rear housing 1110 and the insulation sections 1700 and 1800 located near the front housing 1120 are different from each other.

[0150] First, the thermal barrier layers 1720,1820 may include a first region 1721,1821 and a second region 1722,1822 that are separated from each other and positioned opposite each other. The thermal barrier layers 1720,1820 positioned closer to the rear housing 1110 can be designated as the first region 1721,1821, and the thermal barrier layers 1720,1820 positioned closer to the front housing 1120 can be designated as the second region 1722,1822.

[0151] Regarding the heat insulating sections 1700 and 1800 located near the front housing 1120, the heat conductive layers 1710 and 1810 can be positioned inside the second regions 1722 and 1822 of the heat barrier layer. Therefore, the first heat conductive layer 1710, the second region 1722 of the first heat barrier layer, the second heat conductive layer 1810, and the second region 1822 of the second heat barrier layer can be arranged sequentially from the inside to the outside of the front housing 1120. This is the same structure as described in Figure 5.

[0152] Incidentally, regarding the heat insulating sections 1700 and 1800 located near the rear housing 1110, no separate heat conductive layer is provided. Furthermore, the first region 1721 of the first heat insulating layer and the first region 1821 of the second heat insulating layer are arranged sequentially from the inside to the outside of the rear housing 1110, but they are not in contact with each other.

[0153] The first region 1721 of the first thermal insulation layer is positioned between the outer surface of the first member 1510 and the inner surface of the second member 1520 of the bracket 1500, and may be supported by the first member 1510. The first region 1821 of the second thermal insulation layer is positioned on the outer surface of the second member 1520 of the bracket 1500, and may be supported by the second member 1520. That is, the first region 1721 of the first thermal insulation layer and the first region 1821 of the second thermal insulation layer are positioned on the inside and outside of the second member 1520, respectively, via the second member 1520 of the bracket 1500, and do not necessarily have to be positioned adjacent to each other.

[0154] This difference is due to the fact that 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. As a result, more components are positioned between the heater 1210 and the rear housing 1110 than between the heater 1210 and the front housing 1120, allowing heat to be absorbed by more components as it moves. The user will perceive the rear housing 1110 as less hot than the front housing 1120.

[0155] In other words, the portion closer to the rear housing 1110 is less critical for thermal insulation than the portion closer to the front housing 1120. The portion closer to the rear housing 1110 can achieve sufficient thermal insulation with only the thermal barrier layer, even without a thermal conduction layer. Furthermore, because there is no thermal conduction layer, the thermal barrier layers do not need to be in contact with each other.

[0156] On the other hand, the first region 1821 of the second thermal barrier layer of the second thermal insulation section 1800 may be positioned away from the rear housing 1110. The space between the first region 1821 of the second thermal barrier layer and the rear housing 1110 corresponds to the third thermal insulation space G3.

[0157] The positions of the first insulation portion 1700 and the second insulation portion 1800 are not limited to those shown in the figure. Although not shown, for example, the first insulation portion 1700 may be coupled to the inner surface of the bracket 1500. Specifically, the first insulation portion 1700 may be coupled to the inner surface of the first member 1510 of the bracket 1500.

[0158] In this case, the first insulation section 1700 and the second insulation section 1800 are arranged sequentially from the inside to the outside of the front housing 1120, but they are not arranged in contact with each other. That is, the first insulation section 1700 and the second insulation section 1800 are arranged on the inside and outside of the first member 1510 of the bracket 1500, respectively, and do not need to be arranged adjacent to each other.

[0159] The third insulation section 1900 may be located outside the second insulation section 1800. As shown in the illustration, the third insulation section 1900 may be located near the front housing 1120 and may be positioned after the second region 1822 of the second thermal barrier layer 1820 in the direction from the inside to the outside of the front housing 1120.

[0160] As a result, the first insulation section 1700, the second insulation section 1800, and the third insulation section 1900 can be arranged to sequentially contact the main body 1100 in a direction from the inside outwards. On the other hand, the third insulation section 1900 does not need to be placed in the part close to the rear housing 1110 where the importance of insulation is relatively low.

[0161] As shown in the illustration, the third insulation section 1900 consists of only one layer. When the third insulation section 1900 includes only one layer, that layer corresponds to a thermal barrier layer. However, the embodiment is not limited to what is shown, and the third insulation section 1900 may also include both a thermal conduction layer and a thermal barrier layer.

[0162] Furthermore, although the third insulation portion 1900 is in contact with the front housing 1120 as shown in the figures, the embodiment is not limited to what is shown. In some embodiments, the third insulation portion 1900 may be positioned at a distance from the front housing 1120. In this case, the space between the third insulation portion 1900 and the front housing 1120 corresponds to the third insulation space G3.

[0163] Depending on the embodiment, the third insulation portion 1900 may not be provided. As a result, the second insulation portion 1800 may be provided in contact with the front housing 1120 or provided at a distance from the front housing 1120. When the second insulation portion 1800 is provided at a distance from the front housing 1120, the space between the second insulation portion 1800 and the front housing 1120 corresponds to the third insulation space G3.

[0164] Figure 7A is a perspective view of an aerosol generator according to another embodiment. Figure 7B is an exploded cross-sectional view of an aerosol generator according to another embodiment, cut along the B-B' section shown in Figure 7A. Figure 7C is a coupled cross-sectional view of the aerosol generator shown in Figure 7B.

[0165] Referring to Figures 7A to 7C, the aerosol generating apparatus 2 according to other embodiments may include a main body 2100, a heater assembly 2200, a bracket 2500, and a heat insulating section 2700.

[0166] At least one of the components of the aerosol generator 2 shown in Figures 7A to 7C is identical or similar to at least one of the components of the aerosol generator 1 shown in Figure 4, and therefore, redundant explanations will be omitted below.

[0167] The main 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., the z-axis direction) can be left open. During the manufacturing process of the aerosol generator 2, the internal components of the main body 2100 can be joined together and then housed inside the main housing 2110 through the open end of the main housing 2110. The assembly of the aerosol generator 2 can be completed by joining the upper housing 2130 to the main housing 2110.

[0168] The heater assembly 2200 may include a heater 2210, an airflow passage 2230, a cover 2240, and an upper end coupling 2260. The heater 2210 is as described above, so its explanation will be omitted.

[0169] The airflow passage section 2230 may include a bent passage. Specifically, the passage of the airflow passage section 2230 may extend in the longitudinal direction of the heater 2210 (e.g., in the z-axis direction). Both ends of the passage may be bent and open in a direction that crosses the longitudinal direction of the heater 2210 (e.g., in the y-axis direction). In this case, the lower end of the passage may be open in the +y direction and connected to the inlet of the cover 2240, and the upper end of the passage may be open in the y direction and connected to a passage formed by the connection of the upper end coupling section 2260 and the bracket 2500.

[0170] 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 generator 1, the first part 2241 and the second part 2242 can be joined adjacent to each other via a heater 2210 in a direction that transcends the longitudinal direction of the main body 2100 (for example, in the y-axis direction). The space enclosed by the first part 2241 and the second part 2242 can be opened in the z-axis direction.

[0171] 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 the open end of the cylindrical assembly consisting of the first portion 2241 and the second portion 2242. As a result, the heater 2210 can be housed in the cover 2240 through the other open end of the cylindrical assembly.

[0172] The cover 2240 can support the lower end of the heater 2210 through the third portion 2243. The cover 2240 can also support the lower end of the aerosol product S inserted into the insertion space 2100i through the third portion 2243. The cover 2240 can also support the airflow passage 2230 through the second portion 2242.

[0173] The first portion 2241 and the second portion 2242 of the cover 2240 may be positioned to enclose the heater 2210 and be separated from the heater 2210. The space between the cover 2240 and the heater 2210 constitutes the first insulated space G1.

[0174] A third portion 2243 of the cover 2240 may include an inlet that connects to the airflow passage 2230. One end of the inlet may be open toward the airflow passage 2230, and the other end of the inlet may be open toward the insertion space 2100i. Air moving along the airflow passage 2230 may flow into the inlet of the cover 2240. The air that has flowed into the cover 2240 can move toward the insertion space 2100i inside the heater 2210.

[0175] The airflow passage section 2230, the cover 2240, and the internal insertion space 2100i of the heater 2210 can be fluidly connected. While air moves through the airflow passage section 2230 and the cover 2240 into the internal insertion space 2100i of the heater 2210, the air can move in a "U" shape within the heater assembly 2200.

[0176] On the other hand, the airflow passage portion 2230 may include a portion that protrudes toward the cover 2240. Also, the second portion 2242 of the cover 2240 may include a portion that protrudes toward the airflow passage portion 2230. The protruding portions of the airflow passage portion 2230 and the protruding portions of the cover 2240 can be in contact with each other and support one another. Since the protruding portions of the airflow passage portion 2230 and the cover 2240 are in contact with each other, an empty space may exist between the airflow passage portion 2230 and the cover 2240. In this case, the empty space can function as an insulating space.

[0177] The upper end joint 2260 is positioned on top of the heater 2210 and can form part of the exterior of the heater assembly 2200 (for example, the upper wall of the heater assembly 2200).

[0178] A portion of the upper end coupling 2260 can be coupled to the heater 2210 and the cover 2240. Specifically, a portion of the upper end coupling 2260 can be coupled to the open ends of the heater 2210 and the inner cover 2240. A portion of the upper end coupling 2260 can be open to the outside of the aerosol generator 2 so that the aerosol product S can pass through and be contained in the insertion space 2100i.

[0179] The other portion of the upper end coupling 2260 is positioned on top of the bracket 2500 and can support the bracket 2500. The upper end coupling 2260 may include a passage through which air flows. The passage of the upper end coupling 2260 may be positioned on top of the bracket 2500. The passage of the upper end coupling 2260 may be fluidly connected to one end of an airflow passage 2230 that is open in the y-axis direction.

[0180] The bracket 2500 can be separated into a first member 2510 and a second member 2520. Specifically, the first member 2510 is a cylindrical structure that surrounds the heater 2210 or heater assembly 2200. The second member 2520 is connected to one end of the first member 2510 and is configured to block the open end of the first member 2510.

[0181] The first member 2510 of the bracket 2500 may include a double-wall 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. The first member 2510 may also include a bottom portion 2515 that crosses the first extension portion 2511.

[0182] The first extension portion 2511 of the first member 2510 can support a portion of the airflow passage portion 2230 that extends longitudinally in the heater 2210 and the 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 the bottom wall of the first member 2510. The bottom portion 2515 can support the third portion 2243 of the cover 2240.

[0183] The first member 2510 may include connecting portions 2513 and 2514 that connect the first extension portion 2511 and the second extension portion 2512. As shown in the illustration, the second connecting portion 2514 is longer than the first connecting portion 2513, and the distance between the two extension portions 2511 and 2512 shown on the left side of Figure 7C is even greater than the distance between the two extension portions 2511 and 2512 shown on the right side of Figure 7C.

[0184] Furthermore, with respect to the heater 2210, the airflow passage section 2230 is also located to the left of the heater 2210, and the distance from the heater 2210 to the main body 2100 is greater to the left of the heater 2210 than to the right, so heat can be absorbed by many components as it moves. In other words, the space below the second connecting section 2514 and the empty space between the first extension section 2511 and the second extension section 2512 can function as an insulating space. Consequently, the left side of the heater 2210 is less critical to insulation than the right side.

[0185] The first member 2510 can be connected to the upper end connector 2260 through the first connecting portion 2513 and the second connecting portion 2514. As described above, a passage for the upper end connector 2260 may be located above the second connecting portion 2514.

[0186] A portion of the first member 2510 of the bracket 2500 may be positioned away from the cover 2240. The space between the cover 2240 and the portion of the bracket 2500 corresponds to the second thermal insulation space G2.

[0187] The first member 2510 of the bracket 2500 may be positioned at a distance from the main housing 2110 of the main body 2100. The space between the main body 2100 and the bracket 2500 corresponds to the third thermal insulation space G3.

[0188] On the other hand, the shape of the bracket 2500 is not limited to that shown in the figures. In some embodiments, the length of the first connecting portion 2513 and the length of the second connecting portion 2514 are the same.

[0189] The thermal insulation portion 2700 may be positioned between the first extension portion 2511 and the second extension portion 2512. In this case, the thermal insulation portion 2700 may be connected to at least one of the outer surface of the first extension portion 2511 and the inner surface of the second extension portion 2512.

[0190] In this case, the heat insulating section 2700 may be located below the first connecting section 2513. Although not shown, in some embodiments, the heat insulating section 2700 may also be located below the second connecting section 2514.

[0191] In addition, depending on the embodiment, the heat insulating portion 2700 may be placed on the outer surface of the second extension portion 2512. In this case, the space between the heat insulating portion 2700 and the main body 2100 corresponds to the third heat insulating space G3.

[0192] The location of the thermal insulation portion 2700 is not limited to that shown in the figure. Although not shown, the thermal insulation portion 2700 may be coupled to the outer surface of the second extension portion 2512. Alternatively, the thermal insulation portion 2700 may be located on the outer surface of the cover 2240.

[0193] On the other hand, as shown in the illustration, one heat insulating section 2700 is arranged inside the main body 2100, but the embodiment is not limited to the number of heat insulating sections 2700.

[0194] As for the insulation section 2700, as mentioned above, I will omit further explanation.

[0195] Figure 8A is a perspective view of an aerosol generator according to yet another embodiment. Figure 8B is an exploded cross-sectional view of an aerosol generator according to yet another embodiment, cut along the cross-sectional line C-C' shown in Figure 8A. Figure 8C is a coupled cross-sectional view of the aerosol generator shown in Figure 8B.

[0196] Referring to Figures 8A to 8C, an aerosol generating apparatus 3 according to another embodiment may include a main body 3100, a heater assembly 3200, a bracket 3500, and a heat insulating section 3700.

[0197] At least one of the components of the aerosol generator 3 shown in Figures 8A to 8C is identical or similar to at least one of the components of the aerosol generator 1 shown in Figure 4, and therefore, redundant explanations will be omitted below.

[0198] The main body 3100 can be separated into a main housing 3110 and a window 3120. In this case, the window 3120 is shown only in the perspective view of Figure 8A. That is, only the main housing 3110 of the main body 3100 is shown in the cross-sectional views of Figures 8B and 8C. The internal components of the main body 3100 may be located between the main housing 3110 and the window 3120.

[0199] In the manufacturing process of the aerosol generator 3, after the internal components of the main body 3100 are assembled, the main housing 3110 and the window 3120 may be assembled in the finishing stage. In this case, the main housing 3110 and the window 3120 may be assembled adjacent to each other in a direction that transcends the longitudinal direction of the main body 3100 (for example, in the x-axis direction).

[0200] The aerosol generator 3 may further include a display D on which visual information is displayed. The display D may be positioned in the window 3120 such that at least a portion of the display D is exposed to the outside of the main body 3100. The aerosol generator 3 can provide the user with a variety of visual information through the display D.

[0201] For example, the aerosol generator 3 provides information via the display D regarding the temperature of the heater 3210, whether or not the user has performed a puffing action, and / or the remaining number of puffs for the inserted aerosol product S. However, the information provided via the display D can be varied in various ways.

[0202] The heater assembly 3200 may include a heater 3210, an induction coil 3215, an end support 3220, an internal cover 3240, an external cover 3250, and an upper end coupling 3260.

[0203] The induction coil 3215 is configured to generate an induced magnetic field toward the heater 3210. In this configuration, the heater 3210 is a susceptor that generates heat due to the induced magnetic field. For example, when power is supplied to the induction coil 3215, it generates an alternating magnetic field, and the alternating magnetic field generated from the induction coil 3215 generates heat from the heater 3210, thereby heating the aerosol product S inserted into the insertion space 3100i.

[0204] The induction coil 3215 may be positioned to wind around the internal cover 3240. That is, the induction coil 3215 may be positioned to wind around the internal cover 3240. The induction coil 3215 may be supported by the internal cover 3240.

[0205] The end support portion 3220 is positioned at the lower end of the internal cover 3240 and supports the heater 3210 while simultaneously supporting one end of the aerosol product S. In this configuration, the end support portion 3220 can separate one end of the aerosol product S housed in the internal cover 3240 from the bottom surface of the internal cover 3240.

[0206] If one end of the aerosol product S housed in the insertion space 3100i inside the heater 3210 comes into contact with the end support portion 3220, the aerosol product S can be supported by the end support portion 3220 so as not to move in the longitudinal and radial directions of the heater 3210.

[0207] To prevent the aerosol product S from contacting the bottom surface of the internal cover 3240 and from being supported by the end support portion 3220, the end support portion 3220 may include a portion that protrudes from the inner surface of the internal cover 3240 toward the center of the internal cover 3240. The protruding portion of the end support portion 3220 may be located below the end support portion 3220.

[0208] To stably support the aerosol product S, the end support portion 3220 has multiple protruding portions. Although two protruding portions are shown in the drawing, the embodiment is not limited to the number of protruding portions of the end support portion 3220.

[0209] Multiple protruding portions of the end support 3220 may be arranged around the inner cover 3240, spaced equally apart along the inner surface of the inner cover 3240. Air flowing into the inner cover 3240 can pass through the empty space between the multiple protruding portions of the end support 3220 and move to the lower part of the end support 3220.

[0210] Since one end of the aerosol product S is separated from the bottom surface of the internal cover 3240 by the end support portion 3220, air that moves to the lower part of the end support portion 3220 can be transmitted to one end of the aerosol product S and flow into the interior of the aerosol product S.

[0211] The internal cover 3240 is located in the internal space of the main body 3100 and, as described above, has a cylindrical structure that surrounds and protects the heater 3210. The heater 3210 can be temporarily protected by the internal cover 3240.

[0212] The internal cover 3240 may be positioned away from the heater 3210. This creates a space between the internal cover 3240 and the heater 3210 that constitutes a first insulated space G1.

[0213] On the other hand, the internal cover 3240 can serve as a passage for air flowing in from the outside. Air can flow into the interior of the internal cover 3240 through the opening of the upper end joint 3260, which will be described later.

[0214] The air that has moved from the top to the bottom of the internal cover 3240 flows into the end support portion 3220 and can reach one end of the aerosol product S contained in the insertion space 3100i.

[0215] The outer cover 3250 forms a portion of the exterior of the heater assembly 3200 (for example, the outer circumferential surface of the heater assembly 3200) and can house and protect the components of the heater assembly 3200. For example, the heater 3210, the end support 3220, and the internal cover 3240 may be housed in the outer cover 3250. As a result, the heater 3210 can be secondarily protected by the outer cover 1250.

[0216] The outer cover 3250 can support the lower end of the inner cover 3240. The outer cover 3250 may also be positioned at a distance 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.

[0217] The external cover 3250 may be positioned at a distance from the bracket 3500. The space between the external cover 3250 and the bracket 3500 constitutes the second insulated space G2.

[0218] The outer cover 3250 can block the transfer of heat generated from the heater 3210 to the outside. To improve 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 that is at least partially separated from the inner wall 3251. The space between the inner wall 3251 and the outer wall 3252 can function as an insulated space.

[0219] The upper end joint 3260 is positioned on top of the heater 1210 and can form a part of the exterior of the heater assembly 3200 (for example, the upper wall of the heater assembly 3200).

[0220] A portion of the upper end coupling 3260 can be coupled to the heater 1210 and the internal cover 3240. Specifically, a portion of the upper end coupling 3260 can be coupled to the open ends of the heater 3210 and the internal cover 3240.

[0221] A portion of the upper end coupling 3260 can be opened to the outside of the aerosol generator 1 so that the aerosol product can pass through and be contained in the insertion space. In this case, air can flow in through the open portion.

[0222] Even when the aerosol product S is inserted into the insertion space 3100i, air can flow in through the open portion of the upper end coupling 3260. Specifically, the aerosol product S may be positioned away from the inner surface of the open portion of the upper end coupling 3260. Air can move through the space created by the separation of the aerosol product S from the upper end coupling 3260. That is, air can move into the space between the open portion of the upper end coupling 3260 and the outer surface of the aerosol product S.

[0223] Air that has moved to the lower part of the upper end joint 3260 can pass through the opening formed in the upper end joint 3260. The opening allows for fluid connection between the open portion of the upper end joint 3260 and the inner space of the inner cover 3240. As a result, outside air can pass through the upper end joint 3260 and flow into the inner space of the inner cover 3240.

[0224] On the other hand, although not shown, depending on the embodiment, the open portion of the upper end coupling 3260 may include a portion that protrudes to support the aerosol product S. The multiple protruding portions of the upper end coupling 3260 may be arranged at equal intervals along the inner surface of the open portion of the upper end coupling 3260 in the direction surrounding the open portion. Air flowing into the upper end coupling 3260 can pass through the empty space between the multiple protruding portions of the upper end coupling 3260 and move to the lower part of the upper end coupling 3260. That is, air can move into the space surrounded by the inner surface of the upper end coupling 3260, the multiple protruding portions, and the aerosol product S.

[0225] A portion of the upper end coupling 3260 can be coupled to the open ends of the outer cover 3250 and the bracket 3500. The upper end coupling 3260 can close the open ends of the outer cover 3250 and the bracket 3500. For example, the upper end coupling 3260 can close the second insulated space G2. This increases the insulation effect inside the heater assembly 3200.

[0226] The bracket 3500 has a cylindrical structure that houses the heater assembly 3200. The bracket 3500 may be positioned at a distance from the inner surface of the main body 3100. The space between the inner surface of the main body 3100 and the bracket 3500 corresponds to the third insulated space G3.

[0227] As shown in the illustration, the heater assembly 3200 is offset to one side (for example, the right side) from the center of the bracket 3500. Similarly, the bracket 3500 is also offset to one side (for example, the left side) from the center of the main body 3100. However, the embodiment is not limited to the illustrated shape. The bracket 3500 is identical to the one described above in Figure 4, so its explanation is omitted.

[0228] The heat insulating portion 3700 may be bonded to the outer surface of the bracket 3500. As shown in the illustration, a cylindrical heat insulating portion 3700 is attached to the outside of the bracket 3500, but the embodiment is not limited to the shape of the heat insulating portion 3700. When the heat insulating portion 3700 is bonded to the outer surface of the bracket 3500, the space between the inner surface of the main body 3100 and the heat insulating portion 3700 corresponds to the third heat insulating space G3.

[0229] The location of the heat insulating portion 3700 is not limited to the shown location. Although not shown, in some embodiments, the heat insulating portion 3700 may be bonded to the inner surface of the bracket 3500. Alternatively, the heat insulating portion 3700 may be bonded to the outer surface of the outer cover 3250 that forms the exterior of the heater assembly 3200.

[0230] On the other hand, as shown in the illustration, one heat insulating section 3700 is arranged inside the main body 3100, but the embodiment is not limited to the number of heat insulating sections 3700. As described above, the heat insulating section 3700 will not be explained further.

[0231] According to the embodiment of the aerosol generating device, it is possible to block the transfer of heat to the outside of the aerosol generating device and protect the hands of the user using the aerosol generating device from heat.

[0232] Furthermore, according to the embodiment of the aerosol generating device, heat is uniformly distributed by the heat insulating section, which prevents a specific part of the aerosol generating device from overheating compared to other parts. This prevents failure of internal components of the aerosol generating device and prevents the phenomenon of only a specific part of the main body overheating.

[0233] Figure 9 is a block diagram of an aerosol generating apparatus according to yet another embodiment of the present invention.

[0234] The aerosol generator 1 includes a power supply 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 generator 1 is not limited to that shown in Figure 9. That is, a person with ordinary skill in the art according to this embodiment will understand that some of the components shown in Figure 9 may be omitted or new components may be added depending on the design of the aerosol generator 1.

[0235] Sensor 13 can sense the state of the aerosol generator 1 or the state of the area around the aerosol generator 1 and transmit the sensed information to the control unit 12. Based on the sensed information, the control unit 12 can control the aerosol generator 1 to perform 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 notifications.

[0236] Sensor 13 includes at least one of the following: temperature sensor 131, puff sensor 132, insertion sensor 133, reuse sensor 134, cartridge sensor 135, cap sensor 136, and motion sensor 137.

[0237] The temperature sensor 131 can sense the temperature at which the cartridge heater 24 and / or heater 18 are heated. The aerosol generator 1 may include a separate temperature sensor that senses the temperature of the cartridge heater 24 and / or heater 18, or the cartridge heater 24 and / or heater 18 themselves may act as the temperature sensor.

[0238] The temperature sensor 131 can output a signal corresponding to the temperature of the cartridge heater 24 and / or heater 18. For example, the temperature sensor 131 includes a resistive element whose resistance changes in response to temperature changes in the cartridge heater 24 and / or heater 18. This is embodied by an element such as a thermistor, which utilizes the property that resistance changes with temperature. In this case, the temperature sensor 131 can output a signal corresponding to the resistance value of the resistive element as a signal corresponding to the temperature of the cartridge heater 24 and / or heater 18. For example, the temperature sensor 131 is composed of a sensor that detects the resistance value of the cartridge heater 24 and / or heater 18. In this case, the temperature sensor 131 can output a signal corresponding to the resistance value of the cartridge heater 24 and / or heater 18 as a signal corresponding to the temperature of the cartridge heater 24 and / or heater 18.

[0239] The temperature sensor 131 may be positioned around the power supply 11 to monitor its temperature. The temperature sensor 131 may be positioned adjacent to the power supply 11. For example, the temperature sensor 131 may be attached to one side of the battery which is the power supply 11. For example, the temperature sensor 131 may be mounted on one side of a printed circuit board.

[0240] The temperature sensor 131 is located inside the main unit (not shown) and can sense the internal temperature of the main unit.

[0241] The puff sensor 132 can detect user puffs based on various physical changes in the airflow path. The puff sensor 132 can output a signal corresponding to a puff. For example, the puff sensor 132 is also a pressure sensor. The puff sensor 132 can output a signal corresponding to the internal pressure of the aerosol generator. Here, the internal pressure of the aerosol generator 1 corresponds to the pressure of the airflow path through which the gas flows. The puff sensor 132 can be positioned in the aerosol generator 1 corresponding to the airflow path through which the gas flows.

[0242] The insertion sensor 133 can detect the insertion and / or removal of the stick. The insertion sensor 133 can detect the signal change caused by the insertion and / or removal of the stick. The insertion sensor 133 can be installed around the insertion space. The insertion sensor 133 can detect the insertion and / or removal of the stick by the change in dielectric constant inside the insertion space. For example, the insertion sensor 133 is also an inductive sensor and / or a capacitance sensor.

[0243] An inductive sensor includes at least one coil. The coil of the inductive sensor is positioned adjacent to the insertion space. For example, if the magnetic field changes around a coil through which current flows, the characteristics of the current flowing through the coil may change according to Faraday's law of electromagnetic induction. Here, the characteristics of the current flowing through the coil include the frequency of the alternating current, the current value, the voltage value, the inductance value, the impedance value, etc.

[0244] An inductive sensor can output a signal that corresponds to the characteristics of the current flowing through a coil. For example, an inductive sensor can output a signal that corresponds to the inductance value of a coil.

[0245] A capacitance sensor includes a conductor. The conductor of the capacitance sensor is positioned adjacent to the insertion space. The capacitance sensor can output a signal corresponding to the surrounding electromagnetic properties, such as the capacitance around the conductor. For example, if a stick including a metal ferrule is inserted into the insertion space, the ferrule of the stick can alter the electromagnetic properties around the conductor.

[0246] The reuse detection sensor 134 can detect whether the stick has been reused. The reuse detection sensor 134 is also a color sensor. The color sensor can detect the hue of the stick. The color sensor can detect the hue of a portion of the trumpet surrounding the outside of the stick. The color sensor can detect values ​​related to the optical properties corresponding to the hue of an object, based on the light reflected from the object. For example, the optical properties are also the wavelength of light. The color sensor may be implemented as a single configuration with the proximity sensor, or as a separate configuration distinct from the proximity sensor.

[0247] At least a portion of the flaps that make up the stick may change hue due to aerosols. The reuse sensing sensor 134 may be positioned in a location corresponding to where at least a portion of the flaps whose hue changes due to aerosols are located when the stick is inserted into the insertion space. For example, before the stick is used by a user, at least a portion of the flaps has a first hue. In this case, as the aerosols generated by the aerosol generator 1 pass through the stick, at least a portion of the flaps may be wetted by the aerosols, causing at least a portion of the flaps to change to a second hue. On the other hand, at least a portion of the flaps may remain at the second hue after being changed from the first hue to the second hue.

[0248] The cartridge sensing sensor 135 can detect the insertion and / or removal of a cartridge. The cartridge sensing sensor 135 can be implemented as an inductance substrate sensor, a capacitive sensor, a resistive sensor, or a Hall sensor (Hall IC) using the Hall effect.

[0249] The cap detection sensor 136 can detect the attachment and / or removal of the cap. When the cap is separated from the main body, the cartridge and part of the main body that were 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.

[0250] The motion sensing sensor 137 can detect the movement of the aerosol generator. The motion sensing sensor 137 is embodied by at least one of an acceleration sensor and a gyro sensor.

[0251] Sensor 13 may include, in addition to the aforementioned sensors 131 to 137, at least one of the following: a humidity sensor, a pressure sensor, a magnetic sensor, a GPS position sensor, and a proximity sensor. The function of each sensor can be intuitively inferred by an average engineer from its name, so a detailed explanation is omitted.

[0252] The output unit 14 can output and provide to the user information about the status of the aerosol generator 1. The output unit 14 includes, but is not limited to, a display 141, a haptic unit 142, and an acoustic output unit 143. If the display 141 and the touchpad form a layered structure to constitute a touchscreen, the display 141 can be used as an input device in addition to an output device.

[0253] The display 141 can visually provide the user with information about the aerosol generator 1. For example, the information about the aerosol generator 1 can include various types of information such as the charging / discharging status of the power supply 11 of the aerosol generator 1, the preheating status of the heater 18, the insertion / removal status of the stick and / or cartridge, the attachment / removal status of the cap, or a state in which the use of the aerosol generator 1 is restricted (e.g., detection of an abnormal object), and the display 141 can output this information to the outside. For example, the display 141 can also 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.

[0254] The haptic unit 142 can convert electrical signals into mechanical or electrical stimuli, providing the user with tactile information about the aerosol generator 1. For example, the haptic unit 142 generates vibrations corresponding to the completion of initial preheating when initial power is supplied to the cartridge heater 24 and / or heater 18 for a set time. The haptic unit 142 may include a vibration motor, a piezoelectric element, or an electrical stimulator.

[0255] The acoustic output unit 143 can provide the user with auditory information about the aerosol generator 1. For example, the acoustic output unit 143 can convert electrical signals into acoustic signals and output them externally.

[0256] The power supply 11 can supply the power used to operate the aerosol generator 1. The power supply 11 can supply power to heat the cartridge heater 24 and / or heater 18. The power supply 11 can also supply the power necessary for the operation of other components provided in the aerosol generator 1, namely the sensor 13, output unit 14, input unit 15, communication unit 16, and memory 17. The power supply 11 may be a rechargeable battery or a disposable battery. For example, the power supply 11 is a lithium polymer (LiPoly) battery, but is not limited to that.

[0257] Although not shown in Figure 9, the aerosol generator 1 may further include a power protection circuit. The power protection circuit is electrically connected to the power supply 11 and may include a switching element.

[0258] The power protection circuit can shut off the circuit to the power supply 11 under predetermined conditions. For example, the power protection circuit can shut off the circuit to the power supply 11 if the voltage level of the power supply 11 is equal to or greater than a first voltage corresponding to overcharging. For example, the power protection circuit can shut off the circuit to the power supply 11 if the voltage level of the power supply 11 is less than a second voltage corresponding to over-discharge.

[0259] The heater 18 is powered by the power supply 11 and can heat the medium or aerosol-generating material inside the stick. Although not shown in Figure 9, the aerosol generator 1 may further include a power conversion circuit (e.g., a DC / DC converter) that converts the power from the power supply 11 and supplies it to the cartridge heater 24 and / or heater 18. Also, if the aerosol generator 1 generates aerosols by induction heating, the aerosol generator 1 may further include a DC / AC converter that converts the DC power supply of the power supply 11 to AC power.

[0260] The control unit 12, sensor 13, output unit 14, input unit 15, communication unit 16, and memory 17 can function by being powered by the power supply 11. Although not shown in Figure 9, a power conversion circuit, such as an LDO (low dropout) circuit or a voltage regulator circuit, may be further included to convert the power from the power supply 11 and supply it to each component. Also, although not shown in Figure 9, a noise filter may be provided between the power supply 11 and the heater 18. The noise filter is also 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 corresponds to the frequency of the high-frequency switching current applied from the power supply 11 to the heater 18. The low-pass filter prevents high-frequency noise components from being applied to the sensor 13, such as the insertion sensing sensor 133.

[0261] In one embodiment, the cartridge heater 24 and / or heater 18 may consist of any suitable electrical resistant material. Suitable electrical resistant materials include, but are not limited to, metals or metal alloys, such as titanium, zirconium, tantalum, platinum, nickel, cobalt, chromium, hafnium, niobium, molybdenum, tungsten, tin, gallium, manganese, iron, copper, stainless steel, and nichrome. The heater 18 may also be embodied by, but is not limited to, a metal heating wire, a metal heating plate on which conductive tracks are arranged, or a ceramic heating element.

[0262] In other embodiments, the heater 18 is also an induction heating heater. For example, the heater 18 may include a susceptor that generates heat via a magnetic field applied by a coil to heat the aerosol-generating material.

[0263] The input unit 15 can receive information input from the user or output information to the user. For example, the input unit 15 is also a touch panel. The touch panel may include at least one touch sensor that detects touch. For example, the touch sensor includes, but is not limited to, a capacitive touch sensor, a resistive touch sensor, an ultrasonic touch sensor (surface acoustic wave touch sensor), or an infrared touch sensor.

[0264] The display 141 and the touch panel can be realized as a single panel. For example, the touch panel can be inserted into the display 141 (on-cell type or in-cell type). For example, the touch panel can be added on top of the display 141 (add-on type).

[0265] On the other hand, the input section 15 includes, but is not limited to, buttons, keypads, dome switches, jog wheels, jog switches, etc.

[0266] Memory 17 is hardware that stores various data processed within the aerosol generator 1, and can store data processed by the control unit 12 and data being processed. Memory 17 includes at least one type of recording medium from among flash memory type, hard disk type, multimedia card micro type, card type memory (e.g., SD or XD memory), RAM (random access memory), SRAM (static random access memory), ROM (read-only memory), EEPROM (electrically erasable programmable read-only memory), PROM (programmable read-only memory), magnetic memory, magnetic disk, and optical disk. Memory 17 can store data such as the operating time of the aerosol generator 1, the maximum number of puffs, the current number of puffs, at least one temperature profile, and data related to the user's smoking pattern.

[0267] The communication unit 16 includes at least one component for communication with other electronic devices. For example, the communication unit 16 includes at least one of a short-range communication unit and a wireless communication unit.

[0268] The short-range wireless communication unit includes, but is not limited to, Bluetooth® communication units, BLE (Bluetooth® Low Energy) communication units, Near Field Communication units, WLAN (Wi-Fi) communication units, Zigbee® communication units, infrared (IrDA: infrared Data Association) communication units, WFD (Wi-Fi Direct) communication units, UWB (ultra wideband) communication units, Ant+ communication units, etc.

[0269] The wireless communication unit includes, but is not limited to, a cellular network communication unit, an Internet communication unit, or a computer network (e.g., LAN or WAN) communication unit.

[0270] Although not shown in Figure 9, the aerosol generator 1 further includes a connection interface such as a USB (universal serial bus) interface, and can connect to other external devices via the USB interface to send and receive information or charge the power supply 11.

[0271] The control unit 12 can control the overall operation of the aerosol generator 1. In one embodiment, the control unit 12 includes at least one processor. The processor may be embodied as an array of numerous logic gates, or as a combination of a general-purpose microprocessor and memory storing a program executable by the microprocessor. It will be understood by those ordinary skill in the art to which this embodiment belongs that it may also be embodied by other forms of hardware.

[0272] The control unit 12 can control the temperature of the heater 18 by controlling the supply of power from the power supply 11 to the heater 18. The control unit 12 can control the temperature of the cartridge heater 24 and / or heater 18 based on the temperature of the cartridge heater 24 and / or heater 18 sensed by the temperature sensor 131. The control unit 12 can adjust the power supplied to the cartridge heater 24 and / or heater 18 based on the temperature of the cartridge heater 24 and / or heater 18. For example, the control unit 12 can determine a target temperature for the cartridge heater 24 and / or heater 18 based on a temperature profile stored in the memory 17.

[0273] The aerosol generator 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 heater 18. The power supply circuit may be electrically connected to the cartridge heater 24, heater 18, or induction coil 181. The power supply circuit includes at least one switching element. The switching element is embodied by a bipolar junction transistor (BJT), a field-effect transistor (FET), etc. The control unit 12 can control the power supply circuit.

[0274] The control unit 12 can control the power supply by controlling the switching of the switching elements in the power supply circuit. The power supply circuit is also an inverter that converts the DC power output from the power supply 11 into AC power. For example, the inverter is composed of a full-bridge circuit or a half-bridge circuit that includes multiple switching elements.

[0275] The control unit 12 can turn on the switching element so that power is supplied from the power supply 11 to the cartridge heater 24 and / or heater 18. The control unit 12 can turn off the switching element so that the power supply to the cartridge heater 24 and / or heater 18 is cut off. The control unit 12 can adjust the current supplied from the power supply 11 by adjusting the frequency and / or duty cycle of the current pulse input to the switching element.

[0276] The control unit 12 can control the voltage output from the power supply 11 by controlling the switching of the switching elements in the power supply circuit. The power conversion circuit can convert the voltage output from the power supply 11. For example, the power conversion circuit includes a buck converter that steps down the voltage output from the power supply 11. For example, the power conversion circuit is implemented through a buck boost converter, a Zener diode, etc.

[0277] The control unit 12 can control the on / off operation of the switching element included in the power conversion circuit and adjust the level of the voltage output from the power conversion circuit. When the switching element remains in the on state, the level of the voltage output from the power conversion circuit corresponds to the level of the voltage output from the power supply 11. The duty cycle for the on / off operation of the switching element corresponds to the ratio of the voltage output from the power conversion circuit to the voltage output from the power supply 11. The lower the duty cycle for the on / off operation of the switching element, the lower the level of the voltage output from the power conversion circuit may be. The heater 18 may be heated based on the voltage output from the power conversion circuit.

[0278] The control unit 12 can control the supply of power to the heater 18 using at least one of the following methods: pulse width modulation (PWM) and proportional-integral-differential (PID).

[0279] For example, the control unit 12 can use a PWM method to control the supply of current pulses having a predetermined frequency and duty cycle to the heater 18. The control unit 12 can adjust the frequency and duty cycle of the current pulses to control the power supplied to the heater 18.

[0280] For example, the control unit 12 can determine a target temperature that is the target of control based on the temperature profile. The control unit 12 uses a PID control method, which is a feedback control method through the difference value between the temperature of the heater 18 and the target temperature, the value obtained by integrating the difference value over time, and the value obtained by differentiating the difference value over time, to control the power supplied to the heater 18.

[0281] 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 so that the supply of power to the cartridge heater 24 and / or the heater 18 is interrupted based on the fact that the temperature of the cartridge heater 24 and / or the heater 18 exceeds a predetermined limit temperature. For example, the control unit 12 can reduce the amount of electric power supplied to the cartridge heater 24 and / or the heater 18 by a certain ratio based on the fact that the temperature of the cartridge heater 24 and / or the heater 18 exceeds a predetermined limit temperature. For example, the control unit 12 can determine that the aerosol generating substance contained in the cartridge has been exhausted based on the fact that the temperature of the cartridge heater 24 exceeds the limit temperature, and can cut off the supply of power to the cartridge heater 24.

[0282] The control unit 12 can control the charge and discharge 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.

[0283] 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 equal to or higher than a first limit temperature that is the criterion for cutting off the charging of the power source 11. When 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 predetermined charging current. When the temperature of the power source 11 is equal to or higher than the first limit temperature, the control unit 12 can cut off the charging of the power source 11.

[0284] When the power supply of the aerosol generator 1 is turned on, the control unit 12 can check whether the temperature of the power supply 11 is equal to or higher than a second limit temperature which is a criterion for interrupting the discharge of the power supply 11. When the temperature of the power supply 11 is lower than the second limit temperature, the control unit 12 can control to use the power stored in the power supply 11. When the temperature of the power supply 11 is equal to or higher than the second limit temperature, the control unit 12 can interrupt the use of the power stored in the power supply 11.

[0285] The control unit 12 can calculate the remaining capacity of the power stored in the power supply 11. For example, the control unit 12 can calculate the remaining capacity of the power supply 11 based on the voltage and / or current sensing value of the power supply 11.

[0286] The control unit 12 can determine whether a stick is inserted into the insertion space through the insertion sensing sensor 133. The control unit 12 can determine that the stick has been inserted based on the output signal of the insertion sensing sensor 133. When it is determined that the stick has been 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.

[0287] 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 sensing sensor 133. For example, when the temperature of the heater 18 is equal to or higher than the limit temperature, or when the temperature change gradient of the heater 18 is equal to or higher than the set gradient, the control unit 12 can determine that the stick has been removed from the insertion space. When it is determined that the stick has been removed from the insertion space, the control unit 12 can interrupt the power supply to the cartridge heater 24 and / or the heater 18.

[0288] The control unit 12 can control the power supply time and / or power supply amount to the heater 18 based on the state of the stick sensed by the sensor 13. The control unit 12 can determine the level range that includes the level of the capacitance sensor signal based on a lookup table. The control unit 12 can determine the amount of moisture in the stick based on the determined level range.

[0289] If the stick is in an over-humidified state, the control unit 12 can control the power supply time to the heater 18, increasing the preheating time of the stick compared to normal conditions.

[0290] The control unit 12 can determine whether the stick inserted into the insertion space is to be reused through the reuse sensing sensor 134. For example, the control unit 12 can compare the sensing value of the reuse sensing sensor signal with a first reference range that includes a first hue, and if the sensing value falls within the first reference range, it can determine that the stick is not being used. For example, the control unit 12 can compare the sensing value of the reuse sensing sensor signal with a second reference range that includes a second hue, and if the sensing value falls within 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 power supply to the cartridge heater 24 and / or heater 18.

[0291] The control unit 12 can determine whether to connect and / or remove the cartridge through the cartridge sensing sensor 135. For example, the control unit 12 can determine whether to connect and / or remove the cartridge based on the sensing value of the signal from the cartridge sensing sensor.

[0292] The control unit 12 can determine whether or not the aerosol-generating material in the cartridge has been exhausted. For example, the control unit 12 can preheat the cartridge heater 24 and / or heater 18 by applying power, and determine whether or not the temperature of the cartridge heater 24 exceeds a limit temperature during the preheating period. If the temperature of the cartridge heater 24 exceeds the limit temperature, the control unit 12 can determine that the aerosol-generating material in the cartridge has been exhausted. If the control unit 12 determines that the aerosol-generating material in the cartridge has been exhausted, it can cut off the power supply to the cartridge heater 24 and / or heater 18.

[0293] The control unit 12 can determine whether or not the cartridge can be used. For example, based on the data stored in the memory 17, the control unit 12 can determine that the cartridge cannot be used if the current number of puffs is greater than or equal to the maximum number of puffs set for the cartridge. For example, the control unit 12 can determine that the cartridge cannot be used if the total time the cartridge heater 24 has been heated is greater than or equal to a predetermined maximum time, or if the total amount of power supplied to the cartridge heater 24 is greater than or equal to a predetermined maximum amount of power.

[0294] The control unit 12 can make decisions regarding the user's inhalation through the puff sensor 132. For example, the control unit 12 can determine whether or not a puff has occurred based on the sensing value of the signal from the puff sensor. For example, the control unit 12 can determine the intensity of the puff based on the sensing value of the signal from the puff sensor 132. If the number of puffs reaches a predetermined maximum number of puffs, or if no puff is detected for a predetermined time or longer, the control unit 12 can cut off the power supply to the cartridge heater 24 and / or heater 18.

[0295] The control unit 12 can determine whether the cap is attached and / or removed via the cap sensing 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 from the cap sensing sensor.

[0296] The control unit 12 can control the output unit 14 based on the results sensed by the sensor 13. For example, if the number of puffs counted through the puff sensor 132 reaches a predetermined number, the control unit 12 can notify the user that the aerosol generator 1 will soon shut off through at least one of the display 141, the haptic unit 142, and the acoustic output unit 143. For example, the control unit 12 can notify the user through the output unit 14 based on the determination that there is no stick in the insertion space. For example, the control unit 12 can notify the user through the output unit 14 based on the determination that the cartridge and / or cap is not installed. For example, the control unit 12 can transmit information about the temperature of the cartridge heater 24 and / or heater 18 to the user through the output unit 14.

[0297] The control unit 12 can save and update a history of events in the memory 17 based on the occurrence of a predetermined event. Events include operations performed by the aerosol generator 1, such as detecting the insertion of a stick, starting the heating of the stick, detecting puffing, ending the puffing, detecting overheating of the cartridge heater 24 and / or heater 18, detecting the application of overvoltage to the cartridge heater 24 and / or heater 18, ending the heating of the stick, turning the power of the aerosol generator 1 on / off, starting charging of the power supply 11, detecting overcharging of the power supply 11, and ending charging of the power supply 11. The history of events includes the date and time the event occurred, log data corresponding to the event, etc. For example, if a predetermined event is the detection of stick insertion, the log data corresponding to the event includes data such as the sensing value of the insertion detection sensor 133. For example, if a predetermined event is the detection of overheating of the cartridge heater 24 and / or heater 18, the log data corresponding to the event will 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, and the current flowing through the cartridge heater 24 and / or heater 18.

[0298] The control unit 12 can be controlled to form a communication link with an external device, such as a user's mobile terminal. Upon receiving authentication data from the external device via the communication link, the control unit 12 can remove the restriction on the use of at least one function of the aerosol generator 1. Here, the authentication data includes data indicating the completion of user authentication for the user corresponding to the external device. The user can perform user authentication through the external device. The external device can determine whether the user data is valid based on the user's date of birth, a unique number identifying the user, etc., and can receive data regarding the right to use the aerosol generator 1 from an external server. Based on the data regarding the right to use, the external device can transmit data indicating the completion of user authentication to the aerosol generator 1. Once user authentication is complete, the control unit 12 can remove the restriction on the use of at least one function of the aerosol generator 1. For example, once user authentication is complete, the control unit 12 can remove the restriction on the use of the heating function that supplies power to the heater 18.

[0299] The control unit 12 can transmit data related to the status of the aerosol generator 1 to the 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 of the power supply 11 of the aerosol generator 1, the operating mode, etc., through the external device's display.

[0300] An external device can transmit a location search request to the aerosol generator 1 based on an input that initiates a location search for the aerosol generator 1. When the control unit 12 receives a location search request from the external device, it can 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, the haptic unit 142 may generate vibrations in response to the location search request. For example, the display 141 may output an object corresponding to the location search and the end of the search in response to the location search request.

[0301] The control unit 12 can control the aerosol generator 1 to perform a firmware update when it receives firmware data from an external device. The external device can check the current firmware version of the aerosol generator 1 and determine whether a new firmware version exists. When the external device receives an input requesting a firmware download, it can receive the new firmware version data and transmit the new firmware version data to the aerosol generator 1. Upon receiving the new firmware version data, the control unit 12 can control the aerosol generator 1 to perform a firmware update.

[0302] The control unit 12 can transmit data related to the sensing values ​​of at least one sensor 13 to an external server (not shown) via the communication unit 16, and can receive and store a learning model generated by learning the sensing values ​​from the server through machine learning such as deep learning. Using the learning model received from the server, the control unit 12 can perform operations such as determining the user's inhalation pattern and generating a temperature profile. The control unit 12 can store sensing value data from at least one sensor 13 and data for learning an artificial neural network (ANN) in the memory 17. For example, the memory 17 can store a database related to each component of the aerosol generator 1, weights and biases that make up the structure of the artificial neural network (ANN) for learning the artificial neural network (ANN). The control unit 12 can learn the data related to the sensing values ​​of at least one sensor 13, the user's inhalation pattern, the temperature profile, etc., stored in the memory 17, and generate at least one learning model used for determining the user's inhalation pattern and generating a temperature profile.

[0303] The embodiments of the present invention described above are not mutually exclusive or distinct from each other. The respective configurations or functions of the embodiments of the present invention described above may be used in combination or in combination with each other.

[0304] For example, it means that configuration A described in a particular embodiment and / or drawing can be combined with configuration B described in another embodiment and / or drawing. In other words, even if the combination of configurations is not directly described, it means that combination is possible unless it is stated that such combination is impossible.

[0305] The detailed description set forth herein should not be interpreted restrictively in any way, but should be considered illustrative. The scope of the invention shall be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the invention shall be included within the scope of the invention.

Claims

1. A main body including an insertion space for containing aerosol products, A heater for generating heat to heat the aerosol product contained in the insertion space, A first heat insulating section surrounds at least a portion of the heater and prevents heat generated from the heater from being transmitted to the user, It includes a bracket positioned away from the heater and for supporting the first heat insulating section, The aerosol generating apparatus includes a first heat-insulating section which comprises a first heat-conducting layer for dispersing heat absorbed from the heater through heat conduction, and a first heat-insulating layer for blocking the transfer of heat to the outside so that the heat transferred to the first heat-conducting layer remains in the first heat-conducting layer.

2. The aerosol generating apparatus according to claim 1, wherein the first heat conductive layer and the first heat barrier layer are in contact with each other and are arranged sequentially in a direction from the inside to the outside of the main body.

3. The aerosol generating apparatus according to claim 1, wherein the first heat insulating section is arranged at a distance from the inner surface of the main body.

4. The first thermal barrier layer includes a first region and a second region that are separated from each other and arranged opposite to each other. The aerosol generating apparatus according to claim 1, wherein the first heat conductive layer is disposed inside the second region of the first heat barrier layer.

5. The invention further includes a second insulating portion located outside the first insulating portion, The aerosol generating apparatus according to claim 1, wherein the second heat insulating portion includes a second heat conductive layer that absorbs heat and disperses it over the entire surface through heat conduction, and a second heat insulating layer that blocks the transfer of heat to the outside so that the heat transferred to the second heat conductive layer remains in the second heat conductive layer.

6. The aerosol generating apparatus according to claim 5, wherein the first heat conduction layer, the first heat barrier layer, the second heat conduction layer, and the second heat barrier layer are arranged to be in sequential contact with the main body in a direction from the inside outwards.

7. The invention further includes a third insulating portion located outside the second insulating portion, The aerosol generating apparatus according to claim 6, wherein the first insulating section, the second insulating section, and the third insulating section are arranged to sequentially contact the main body in a direction from the inside outwards.

8. The aerosol generating apparatus according to claim 5, wherein the second heat insulating portion is arranged at a distance from the inner surface of the main body.

9. The invention further includes a first cover that surrounds the heater at a predetermined distance from the heater and accommodates at least a portion of the heater, The aerosol generating apparatus according to claim 1, wherein the bracket is arranged at a distance from the first cover.

10. The aerosol generating apparatus according to claim 9, wherein the first cover includes one or more grooves on its outer surface.

11. The present invention further includes a second cover that surrounds the first cover and is located at a distance from the outer surface of the first cover, The aerosol generating apparatus according to claim 9, wherein the bracket is arranged at a distance from the second cover.

12. The aerosol generating apparatus according to claim 11, wherein the second cover includes an inner wall facing the first cover, an outer wall separated at least a portion from the inner wall, and a thermal insulation space formed between the inner wall and the outer wall.

13. The aerosol generating apparatus according to claim 11, further comprising an airflow passage portion disposed on the inner surface of the first cover and supported by the first cover.

14. The bracket includes a cylindrical first member surrounding the heater, and a second member coupled to the side surface of the first member and one end of the first member to block the open end of the first member. The aerosol generating apparatus according to claim 1, wherein the first member includes one or more grooves on its outer surface.

15. 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. The aerosol generating apparatus according to claim 1, wherein a first heat insulating portion is arranged between the first extension portion and the second extension portion.

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