Aerosol-generating device and heating assembly

Abstract

The utility model relates to aerosol generating device and heating assembly, heating assembly includes: for at least part aerosol generating substrate heating's heating cavity, by inside to outside setting gradually in the heating cavity outer periphery's first heat insulation structure and second heat insulation structure, the high temperature resistance of first heat insulation structure is stronger than the high temperature resistance of second heat insulation structure, and / or, the heat insulation of first heat insulation structure is weaker than the heat insulation of second heat insulation structure. Heating assembly passes through inside to outside setting gradually first heat insulation structure and second heat insulation structure in the outer periphery of heating cavity, and the high temperature resistance of first heat insulation structure is stronger than the high temperature resistance of second heat insulation structure and / or the heat insulation of first heat insulation structure is weaker than the heat insulation of second heat insulation structure, and then can reduce the heat conduction of heating body to the outside, improve the heat insulation of heating assembly, improve user's use experience.

Description

Technical Field

[0001] This utility model relates to the field of aerosol generation technology, and in particular to an aerosol generation device and a heating component. Background Technology

[0002] In related technologies, the temperature of the heating chamber in aerosol generating devices is usually quite high when the heating element is working. This temperature is generally conducted to the outer casing, causing the outer casing to become hot, increasing user discomfort and affecting the user experience. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an improved heating component and, more specifically, an improved aerosol generating device.

[0004] The technical solution adopted by this utility model to solve its technical problem is: to construct a heating component, including:

[0005] A heating chamber for heating at least a portion of the aerosol generation matrix;

[0006] A first heat insulation structure and a second heat insulation structure are sequentially arranged from the inside to the outside of the heating cavity. The first heat insulation structure has stronger high temperature resistance than the second heat insulation structure, and / or the first heat insulation structure has weaker heat insulation than the second heat insulation structure.

[0007] In some embodiments, the maximum operating temperature of the second thermal insulation structure is lower than the maximum operating temperature of the first thermal insulation structure;

[0008] And / or, the thermal conductivity of the first thermal insulation structure is greater than that of the second thermal insulation structure;

[0009] And / or, the thickness of the first thermal insulation structure is less than the thickness of the second thermal insulation structure.

[0010] In some embodiments, the thermal conductivity of the first thermal insulation structure is 0.02-0.03 W / m·K;

[0011] And / or, the thermal conductivity of the second insulation structure is 0.012-0.02 W / m·K.

[0012] In some embodiments, the thickness of the first thermal insulation structure is less than or equal to the difference between the thickness of the heating component outside the outer wall of the heating chamber and the thickness of the second thermal insulation structure.

[0013] In some embodiments, the heating assembly further includes a fixing tube and a heating element; the fixing tube is sleeved on the outer periphery of the heating element, and the heating cavity is at least partially formed in the heating element; the first heat insulation structure is disposed between the fixing tube and the heating element; and the second heat insulation structure is disposed on the outer periphery of the fixing tube.

[0014] In some embodiments, a gap is provided between the outer wall of the heating element and the inner wall of the cavity accommodating the heating component;

[0015] The thickness of the first heat insulation structure is less than or equal to the difference between the thickness of the heating component outside the outer wall of the heating chamber and the thickness of the second heat insulation structure and the thickness of the fixing tube.

[0016] In some embodiments, the surface of the heating element is provided with a protruding connecting structure;

[0017] The minimum thickness of the first heat insulation structure is less than or equal to the minimum distance between the inner wall of the fixed tube and the outer wall of the heating element.

[0018] In some embodiments, the axial length of the second heat insulation structure is greater than the axial length of the heating element;

[0019] The heating cavity includes a first end and a second end disposed opposite to the first end; the first end has an opening; the second heat insulation structure extends axially along the heating element to or beyond the second end of the heating cavity.

[0020] In some embodiments, the heating component includes a heating element, a first fixing structure, and a second fixing structure; the first fixing structure is disposed at one end of the heating element, and the second fixing structure is disposed at the other end of the heating element and cooperates with the first fixing structure.

[0021] The first heat insulation structure is disposed between the first fixing structure and the second fixing structure;

[0022] The axial length of the first heat insulation structure is less than or equal to the minimum distance between the first fixing structure and the second fixing structure.

[0023] An aerosol generating device is also constructed, including the heating component described in this utility model and a power supply component connected to the heating component.

[0024] The aerosol generating device and heating component of this utility model have the following beneficial effects: the heating component has a first heat insulation structure 26a and a second heat insulation structure 26b arranged sequentially from the inside to the outside on the outer periphery of the heating cavity. The first heat insulation structure 26a has a higher temperature resistance than the second heat insulation structure 26b and / or the first heat insulation structure 26a has a lower heat insulation than the second heat insulation structure 26b. This reduces the heat conduction of the heating cavity to the outside, improves the heat insulation performance of the heating component, and enhances the user experience. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0026] Figure 1 This is a partial cross-sectional schematic diagram of the aerosol generating device in some embodiments of this utility model;

[0027] Figure 2 yes Figure 1 A schematic diagram of the heating component structure of the aerosol generating device shown.

[0028] Figure 3 yes Figure 2 A cross-sectional view of the heating component shown;

[0029] Figure 4 yes Figure 2 The diagram shows an exploded view of the heating element. Detailed Implementation

[0030] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by terms such as "inner," "outer," etc., are based on the directions or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or element referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0031] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "connection," "fixed," and "set" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. When an element is referred to as being "on" or "below" another element, that element can be located "directly" or "indirectly" on the other element, or there may be one or more intermediary elements. The terms "first," "second," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0032] Figure 1 Some preferred embodiments of the aerosol generating device 100 of this utility model are shown. The aerosol generating device 100 heats the aerosol generating matrix using a non-combustible heating method. Specifically, the aerosol generating device 100 can heat the aerosol generating matrix through heat conduction, radiation heating, or convection heating. More specifically, it can heat the aerosol generating matrix through resistance heating, infrared heating, electromagnetic heating, laser heating, microwave heating, etc. In this embodiment, the aerosol generating matrix can be columnar, and can be a solid material in the form of strips, sheets, granules, or integral molding made from the leaves and / or stems of plants (e.g., tobacco). Aroma components can be further added to this solid material.

[0033] like Figure 1 As shown, in some embodiments, the aerosol generating apparatus 100 may include a housing 10, a heating element 20, and a power supply element 30. The housing 10 may be used to house the heating element 20 and the power supply element 30. The heating element 20 can heat the aerosol generating matrix when energized, causing it to generate aerosols. The power supply element 30 may be connected to the heating element 20 and can supply power to the heating element 20.

[0034] In some embodiments, the outer casing 10 is generally cylindrical and is a hollow structure with both ends open. One end of the outer casing 10 may be provided with a plug-in port 11, which can be used for inserting and installing the aerosol generation matrix. In some embodiments, the outer casing 10 can be a metal or plastic shell. The material of the outer casing 10 is generally aluminum alloy, but in some embodiments it can also be stainless steel, iron alloy, titanium alloy, or other metal materials. In some embodiments, it can also be made of plastic materials such as ABS, PC, and PPSU. The outer casing 10 generally serves a decorative and aesthetic purpose.

[0035] like Figures 2 to 4 As shown, in some embodiments, the heating component 20 may include a heating element 21, which is generally tubular and has a hollow structure extending through both ends. Specifically, in some embodiments, the heating element 21 may be a cylindrical tube. Of course, it is understood that in other embodiments, the heating element 21 may not be limited to a cylindrical tube and may also be a square tube. In some embodiments, at least a partial heating cavity 211 may be formed on the inner side of the heating element 21. The heating cavity 211 is disposed opposite to the insertion port 11 and the two can communicate with each other. The heating cavity 211 can be used for the insertion and heating of at least a portion of the aerosol generation matrix. The heating cavity 211 may be a cylindrical cavity, which may include a first end 211a and a second end 211b disposed opposite to the first end 211a. The first end 211a may be disposed toward the insertion port 11 and has an opening 2110 that communicates with the insertion port 11.

[0036] In some embodiments, the heating element 21 may include a substrate and a heating structure disposed on the substrate. The substrate may be a tubular structure extending through both ends, and may be made of metal, such as stainless steel, aluminum, or aluminum alloy. In some embodiments, the substrate may also be made of non-metallic materials, such as ceramic materials (e.g., zirconium oxide) or quartz glass. The heating structure may be a film strip, which may be wound around the outer surface of the substrate and fixed integrally to the outer surface of the substrate by sintering. In some embodiments, the heating structure may include a longitudinally elongated carrier and heating circuitry disposed on the carrier. In some embodiments, the heating structure may be integrally formed with the substrate, thereby facilitating the assembly of the heating element 21.

[0037] In some embodiments, the heating component 20 further includes a first fixing structure 22 and a second fixing structure 23. The first fixing structure 22 is disposed at one end of the heating element 21, and the second fixing structure 23 is disposed at the other end of the heating element 21. The first fixing structure 22 and the second fixing structure 23 cooperate to fix the heating element 21.

[0038] In some embodiments, the first fixing structure 22 can be a tubular structure extending through both ends. The first fixing structure 22 can be sleeved on one end of the heating element 21, and the first fixing structure 22 can communicate with the heating element 21 to facilitate the insertion of the aerosol generating matrix. The aerosol generating matrix can be inserted from the first fixing structure 22 into a portion located in the heating element 21. In some embodiments, the inner wall of the first fixing structure 22 can be provided with a first limiting step 221 to limit the heating element 21, and one end of the heating element 21 can abut against the first limiting step 221. The first limiting step 221 allows for axial movement of the heating element 21.

[0039] In some embodiments, the second fixing structure 23 is coaxially arranged with the first fixing structure 22. The second fixing structure 23 can be a fixing base, and it can be generally cup-shaped. An insertion interface 231 is provided at one end of the second fixing structure 23 facing the first fixing structure 22, which can be used to insert the heating element 21. A second limiting step 232 can be provided on the inner side of the second fixing structure 23. The heating element 21 can be inserted through the insertion interface 231 and abut against the second limiting step 232. The second limiting step 232 can cooperate with the first limiting step 221 to axially limit the heating element 21.

[0040] In some embodiments, the heating assembly 20 further includes a sealing structure 24, which can be sleeved on the heating element 21. The sealing structure 24 can be disposed between the second fixing structure 23 and the heating element 21, and can seal the gap between the heating element 21 and the second fixing structure 23. In some embodiments, the sealing structure 24 can be a sealing sleeve, which can be fixed to the heating element 21 and the second fixing structure 23 by an interference fit. In some embodiments, the sealing structure 24 can be a silicone sleeve.

[0041] In some embodiments, the heating element 20 further includes a fixing tube 25, which is sleeved around the outer periphery of the heating element 21. In some embodiments, the fixing tube 25 may be a circular tube extending through both ends. The fixing tube 25 is coaxially arranged with the first fixing structure 22 and the second fixing structure 23. In some embodiments, the fixing tube 25 may be sleeved around a portion of the outer periphery of the first fixing structure 22 and the second fixing structure 23, and then sleeved around the outer periphery of the heating element 21. In some embodiments, the fixing tube 25 may be an insulating tube, which may be made of an insulating material; generally, the fixing tube 25 may be a plastic tube, a ceramic tube, or a quartz tube. Of course, it is understood that in some other embodiments, the fixing tube 25 may be omitted.

[0042] In some embodiments, the heating component 20 may further include at least two layers of heat insulation structure 26, which are sequentially disposed from the inside to the outside on the outer periphery of the heating element 21, thereby reducing the outward conduction of heat from the heating element 21, improving the heat insulation performance of the heating component 20, and enhancing the user experience. In some embodiments, the heat insulation structure 26 may be generally a cylindrical structure with both ends open. Specifically, the heat insulation structure 26 may be cylindrical, and the inner diameter of the at least two layers of heat insulation structure 26 may be sequentially increased from the inside to the outside.

[0043] In some embodiments, the heat insulation structure 26 can be two layers, namely, a first heat insulation structure 26a and a second heat insulation structure 26b. Of course, it is understood that in other embodiments, the heat insulation structure 26 is not limited to two layers; it can be three, four, five, etc. One layer of heat insulation structure 26 can be disposed between the fixing tube 25 and the heating element 21, and the remaining heat insulation structures 26 are disposed on the outer periphery of the fixing tube 25. Specifically, the first heat insulation structure 26a can be disposed between the fixing tube 25 and the heating element 21, and the second heat insulation structure 26b can be disposed on the outer periphery of the fixing tube 25. In other embodiments, when the fixing tube 25 is omitted, the second heat insulation structure 26b can be directly disposed on the outer periphery of the fixing first heat insulation structure 26a.

[0044] In some embodiments, the innermost heat insulation structure 26 may be disposed between the first fixing structure 22 and the second fixing structure 23; the axial length of the innermost heat insulation structure 26 is less than or equal to the minimum distance between the first fixing structure 22 and the second fixing structure 23, that is, the axial length of the first heat insulation structure 26a is less than or equal to the minimum distance between the first fixing structure 22 and the second fixing structure 23, and the first heat insulation structure 26a may be clamped and fixed between the first fixing structure 22 and the second fixing structure 23.

[0045] In some embodiments, the axial length of the insulation structure 26 located outside the innermost insulation structure 26 is greater than the axial length of the heating element 21, thereby improving its insulation effect and reducing heat transfer to the outside. In some embodiments, the insulation structure 26 located outside the innermost insulation structure 26 may extend axially along the heating element 21 and is at least partially located on the outer periphery of the aerosol generating matrix away from its suction end. That is, the outer insulation structure 26 is at least partially wrapped around the end of the aerosol generating matrix away from the suction end, thereby improving the insulation performance without affecting the structural assembly. Generally, the axial length of the second insulation structure 26b may be greater than the axial length of the heating element 21, and the second insulation structure 26b may extend axially along the heating element 21 to or beyond the second end of the heating cavity 211, thereby exceeding the end of the aerosol generating matrix inserted into the heating cavity 211.

[0046] In some embodiments, the innermost thermal insulation structure 26 has a higher temperature resistance than the outermost thermal insulation structure. In some embodiments, the first thermal insulation structure 26a has a higher temperature resistance than the second thermal insulation structure 26b located on its outermost layer, thereby preventing a reduction in the thermal insulation performance of the innermost thermal insulation structure 26.

[0047] Generally, the maximum operating temperature of the innermost insulation structure 26 is lower than the maximum temperature of the heating element 21, and / or, the operating temperature of at least one insulation structure 26 outside the innermost insulation structure 26 is lower than the operating temperature of the innermost insulation structure 26, that is, the operating temperature of the second insulation structure 26b is lower than the operating temperature of the first insulation structure 26a. The maximum operating temperature of the insulation structure 26 is its maximum temperature resistance, reflecting its temperature resistance performance. Specifically, the maximum temperature of the heating element 21 is less than or equal to 350°C, and the maximum operating temperature of the innermost insulation structure is less than or equal to 350°C, that is, the maximum operating temperature of the first insulation structure 26a is less than or equal to 350°C. In some embodiments, the innermost insulation structure 26 can be selected from an aerogel material with a maximum operating temperature not exceeding 350°C. Generally, selecting an aerogel material with a maximum operating temperature not exceeding 350°C can avoid aerogel hardening and prevent its insulation performance from gradually decreasing over time. In some embodiments, the operating temperature of at least one insulation structure 26 outside the innermost insulation structure 26 is less than or equal to 200°C. In some embodiments, the operating temperature of the second thermal insulation structure 26b is less than or equal to 200°C, and the second thermal insulation structure 26b may be selected from an aerogel material with a maximum operating temperature of less than or equal to 200°C. In some embodiments, the temperature of the fixing tube 25 is less than or equal to the maximum operating temperature of the second thermal insulation structure 26b (e.g., 200°C).

[0048] In some embodiments, the insulation performance of the innermost heat insulation structure 26 is weaker than that of the outermost heat insulation structure 26. In some embodiments, the insulation performance of the first heat insulation structure 26a is weaker than that of the second heat insulation structure 26b. Generally, the thermal conductivity of the innermost heat insulation structure 26 is greater than that of the outermost heat insulation structure 26, that is, the thermal conductivity of the first heat insulation structure 26a is greater than that of the second heat insulation structure 26b. Therefore, the heat of the heating element 21 is easily conducted out from the innermost heat insulation structure 26 and is more difficult to conduct to the outer shell 10 from the outermost heat insulation structure 26. In some embodiments, the thermal conductivity of the innermost heat insulation structure can be 0.02-0.03 W / m·K, and / or the thermal conductivity of at least one layer of heat insulation structure outside the innermost heat insulation structure 26 can be 0.012-0.02 W / m·K. Specifically, in some embodiments, the thermal conductivity of the first thermal insulation structure 26a can be 0.02-0.03 W / m·K, and the thermal conductivity of the second thermal insulation structure 26b can be 0.012-0.02 W / m·K.

[0049] In some embodiments, the thickness of the innermost heat insulation structure 26 is less than the thickness of the outermost heat insulation structure 26, that is, the thickness of the first heat insulation structure 26a is less than the thickness of the second heat insulation structure 26b. In some embodiments, the thicker the outermost heat insulation structure 26 or the thinner the innermost heat insulation structure 26, the better the overall heat insulation effect. That is, the thickness of the first heat insulation structure 26a is less than the thickness of the second heat insulation structure 26b. In some embodiments, the thickness of the heat insulation structure 26 outside the innermost heat insulation structure 26 can be determined by its maximum operating temperature. Generally, the thickness of the second heat insulation structure 26b can be determined by the upper limit of its operating temperature (approximately 200°C). The thickness of the innermost heat insulation structure 26 can be less than or equal to the difference between the thickness of the entire heating assembly outside the outer wall of the heating cavity 211 and the thickness of the heat insulation structure outside the innermost heat insulation structure and the thickness of the fixing tube 25. Specifically, the thickness A of the first heat insulation structure 26a is less than or equal to the difference between the thickness dimension C and the maximum thickness B of the second heat insulation structure 26b and the thickness T of the fixing tube 25, that is, A≤CBT; wherein, the thickness dimension C is the total thickness of all components outside the outer wall of the heating cavity 211 (that is, the outer wall of the heating element 21), and in some embodiments, it can be a set value.

[0050] In some other embodiments, when the fixing tube 25 is omitted, the thickness of the innermost heat insulation structure 26 is less than or equal to the difference between the thickness of the entire heating component outside the outer wall of the heating cavity 211 and the thickness of the outermost heat insulation structure 26. That is, the thickness A of the first heat insulation structure 26a is equal to the difference between the thickness C of the entire heating component outside the outer wall of the heating cavity 211 and the maximum thickness B of the second heat insulation structure 26b, i.e., A≤CB.

[0051] In some embodiments, a connecting structure may protrude from the surface of the heating element 21. This connecting structure can be used to connect a conductive element, thereby allowing the heating element 21 to be connected to the power supply assembly 30 via the conductive element. In some embodiments, the connecting structure protrudes from the surface of the heating element 21 by a predetermined height, typically 0.08mm to 1.5mm, and generally 1mm. In some embodiments, the connecting structure may be a solder joint or a pad. Of course, it is understood that in other embodiments, the connecting structure is not limited to a solder joint or pad; it may be other conductive connecting structures, such as conductive snap-fit ​​structures. Generally, for ease of installation, a clearance structure is provided at the position corresponding to the connecting structure on the fixing tube 25. In some embodiments, the minimum thickness of the innermost heat insulation structure 26 is less than or equal to the minimum distance between the inner wall of the fixed tube 25 and the outer wall of the heating element 21. That is, the thickness of the first heat insulation structure 26a depends on the minimum distance between the inner wall of the fixed tube 25 and the outer wall of the heating element 21. The minimum thickness of the first heat insulation structure 26a is less than or equal to the minimum distance between the inner wall of the fixed tube 25 and the outer wall of the heating element 21.

[0052] In some other embodiments, the connecting structure can be omitted, for example, when the heating element 21 is an electromagnetic heating element, the connecting structure can be omitted. Without a connecting structure, the thickness of the heat insulation structure 26 outside the innermost heat insulation structure 26 can be determined by the maximum operating temperature of the heat insulation structure 26. With a connecting structure, the height of the protruding connecting structure determines the thickness of the innermost heat insulation structure 26, and the ambient temperature of the space where the heat insulation structure 26 is located cannot exceed its upper operating temperature limit.

[0053] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A heating element for use in an aerosol generating device, characterized in that, include: A heating chamber (211) that houses at least a portion of the aerosol generation matrix; A first heat insulation structure (26a) and a second heat insulation structure (26b) are sequentially arranged from the inside to the outside of the heating cavity (211). The first heat insulation structure (26a) has stronger high temperature resistance than the second heat insulation structure (26b), and / or the first heat insulation structure (26a) has weaker heat insulation than the second heat insulation structure (26b).

2. The heating component according to claim 1, characterized in that, The maximum operating temperature of the second thermal insulation structure (26b) is lower than the maximum operating temperature of the first thermal insulation structure (26a); And / or, the thermal conductivity of the first thermal insulation structure (26a) is greater than that of the second thermal insulation structure (26b); And / or, the thickness of the first thermal insulation structure (26a) is less than the thickness of the second thermal insulation structure (26b).

3. The heating component according to claim 1, characterized in that, The thermal conductivity of the first insulation structure (26a) is 0.02-0.03 W / m·K; And / or, the thermal conductivity of the second insulation structure (26b) is 0.012-0.02 W / m·K.

4. The heating component according to claim 1, characterized in that, The thickness of the first heat insulation structure (26a) is less than or equal to the difference between the thickness of the heating component outside the outer wall of the heating cavity (211) and the thickness of the second heat insulation structure (26b).

5. The heating component according to claim 1, characterized in that, The heating assembly further includes a fixing tube (25) and a heating element (21); the fixing tube (25) is sleeved on the outer periphery of the heating element (21), and the heating cavity (211) is at least partially formed in the heating element (21); the first heat insulation structure (26a) is disposed between the fixing tube (25) and the heating element (21); and the second heat insulation structure (26b) is disposed on the outer periphery of the fixing tube (25).

6. The heating component according to claim 5, characterized in that, The thickness of the first heat insulation structure (26a) is less than or equal to the difference between the thickness of the heating component outside the outer wall of the heating cavity (211) and the thickness of the second heat insulation structure (26b) and the thickness of the fixing tube (25).

7. The heating element according to claim 6, characterized in that, The minimum thickness of the first heat insulation structure (26a) is less than or equal to the minimum distance between the inner wall of the fixed tube (25) and the outer wall of the heating element (21).

8. The heating element according to claim 6, characterized in that, The axial length of the second heat insulation structure (26b) is greater than the axial length of the heating element (21); The heating cavity (211) includes a first end (211a) and a second end (211b) disposed opposite to the first end (211a); the first end (211a) has an opening (2110); the second heat insulation structure (26b) extends axially along the heating element (21) to the second end of the heating cavity (211) or beyond the second end of the heating cavity (211).

9. The heating component according to claim 1, characterized in that, The heating component includes a heating element (21), a first fixing structure (22), and a second fixing structure (23); the first fixing structure (22) is disposed at one end of the heating element (21), and the second fixing structure (23) is disposed at the other end of the heating element (21); The first heat insulation structure (26a) is disposed between the first fixing structure (22) and the second fixing structure (23); The axial length of the first thermal insulation structure (26a) is less than or equal to the minimum distance between the first fixing structure (22) and the second fixing structure (23).

10. An aerosol generating device, characterized in that, It includes the heating component (20) as described in any one of claims 1 to 9, and the power supply component (30) connected to the heating component (20).

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