A containing mechanism and aerosol generating device

Abstract

The present invention relates to a accommodating mechanism and an aerosol generating device, wherein the aerosol generating device is provided with a heating body, wherein the heating body is used to be inserted into an aerosol forming substrate placed on the accommodating mechanism, and the accommodating mechanism comprises: a shell, wherein the shell has an inner cavity, wherein the inner cavity is used to place the aerosol forming substrate, and wherein the contact area between the aerosol forming substrate and the cavity wall of the inner cavity is smaller than the surface area of ​​the cavity wall of the inner cavity. When the accommodating mechanism of the present invention is used, the heating body is inserted into the aerosol forming substrate on the accommodating mechanism, and when the aerosol forming substrate is heated, the contact area between the aerosol forming substrate and the cavity wall of the inner cavity of the shell is reduced, thereby reducing heat conduction and effectively reducing the surface temperature of the accommodating mechanism accommodating the aerosol forming substrate.

Description

Technical Field

[0001] The invention relates to the technical field of aerosol generation, and in particular to a containing mechanism and an aerosol generating device. Background Art

[0002] In recent years, the impact of traditional cigarettes on health and the environment has gradually attracted the attention of countries around the world. Tobacco manufacturers are committed to providing consumers with less harmful tobacco products. As a new form of tobacco consumption, low-temperature heat-not-burn tobacco products are gradually gaining popularity in the market and are increasingly being accepted by cigarette consumers in most countries.

[0003] For example, a Chinese patent document with publication number CN106376975A provides an aerosol generating device and a method of using the same, wherein the aerosol generating device comprises: a cavity, having a cavity shell and a cavity accommodating space formed by the cavity shell, wherein the cavity accommodating space is used to accommodate a medium to be heated, and a filter cotton is provided on the top of the cavity; a sealing cover, disposed at the bottom of the cavity to seal the bottom of the cavity, and a penetration portion is formed at the bottom of the sealing cover; an air deflector, disposed below the sealing cover, having a guide groove and a guide hole, and the guide hole and the penetration portion are disposed correspondingly; a heater, comprising a heater bottom cover and a heating ceramic sheet, wherein the heater bottom cover is disposed below the air deflector, and the heating ceramic sheet is fixed to the heater bottom cover and passes through the guide hole and pierces the penetration portion to penetrate into the cavity accommodating space.

[0004] The cavity wall of the existing aerosol generating device is in direct contact with the medium to be heated, and there is a phenomenon that the temperature of the shell containing the medium to be heated is too high. Summary of the invention

[0005] The problem solved by the present invention is that the shell of the existing aerosol generating device containing the medium to be heated has a phenomenon of excessive temperature.

[0006] In order to solve the above-mentioned problems, the object of the present invention is to provide a containing mechanism for an aerosol generating device, wherein the aerosol generating device is provided with a heating body, and the heating body is used to be inserted into an aerosol forming substrate placed on the containing mechanism, and the containing mechanism comprises: a shell, wherein the shell has an inner cavity, and the inner cavity is used to place the aerosol forming substrate, and the contact area between the aerosol forming substrate and the cavity wall of the inner cavity is smaller than the surface area of ​​the cavity wall of the inner cavity.

[0007] Optionally, the ratio of the contact area between the aerosol-forming substrate and the cavity wall of the inner cavity to the surface area of ​​the cavity wall of the inner cavity is 0.1 to 0.7.

[0008] Optionally, a cavity wall of the inner cavity is provided with a plurality of grooves distributed at intervals along the circumferential direction, and the grooves extend along the axial direction, and the axial direction is consistent with the extension direction of the heating body.

[0009] Optionally, at least part of the groove is connected to the outside along the axial direction.

[0010] Optionally, along the axial direction, the cavity wall of the inner cavity includes a first part and a second part, wherein the first part is used to surround the heating body; the groove includes a first groove arranged on the cavity wall of the first part, and a second groove arranged on the cavity wall of the second part.

[0011] Optionally, at least part of the first grooves and the second grooves correspond one-to-one in the axial direction.

[0012] Optionally, along the circumferential direction, the width of the first groove is greater than the width of the second groove.

[0013] Optionally, along the axial direction, the cavity wall of the inner cavity includes a first part and a second part, wherein the first part is used to surround the heating body; the inner diameter of the first part is larger than the inner diameter of the second part, and the groove is arranged on the cavity wall of the second part.

[0014] Optionally, the accommodating mechanism is detachably connected to a main body of the aerosol generating device, and a heating body is provided on the main body.

[0015] Optionally, an outer surface of the shell is provided with an external thread.

[0016] Optionally, the shell is used to be snap-connected with the main body.

[0017] Optionally, the outer surface of the shell is provided with a concave portion or a convex portion.

[0018] Optionally, a portion of the shell facing the main body is provided with a magnet having a polarity opposite to that of the magnet on the main body.

[0019] The present invention further provides an aerosol generating device, characterized in that it comprises: a main body, on which a heating body is provided; and a containing mechanism as described in any one of the above items, wherein the containing mechanism is detachably connected to the main body.

[0020] Optionally, a clamping portion is provided on the main body, the heating body is located in the clamping portion, and the accommodating mechanism is inserted in the clamping portion and is detachably connected to the clamping portion.

[0021] Optionally, the clamping portion is engaged with the accommodating mechanism.

[0022] Optionally, the outer surface of the shell is provided with a first convex portion, the inner surface of the clamping portion is provided with a second convex portion, and the first convex portion and the second convex portion are snap-fitted; or, the outer surface of the shell is provided with a convex portion, the inner surface of the clamping portion is provided with a concave portion, and the convex portion and the concave portion are snap-fitted; or, the outer surface of the shell is provided with a concave portion, the inner surface of the clamping portion is provided with a convex portion, and the convex portion and the concave portion are snap-fitted.

[0023] Optionally, an outer surface of the shell is provided with an external thread, an inner surface of the clamping portion is provided with an internal thread, and the internal thread is connected to the external thread.

[0024] Optionally, a portion of the main body facing the shell is provided with a first magnet, and a portion of the shell facing the main body is provided with a second magnet having a polarity opposite to that of the first magnet.

[0025] As described above, the accommodating mechanism provided by the present invention has a shell, the shell has an inner cavity, the inner cavity is used to place the aerosol-forming substrate, and the contact area between the aerosol-forming substrate and the cavity wall of the inner cavity of the shell is smaller than the surface area of ​​the cavity wall of the inner cavity, which is equivalent to reducing the contact area between the aerosol-forming substrate and the cavity wall of the inner cavity of the shell. When the heating body is inserted into the aerosol-forming substrate on the accommodating mechanism and the aerosol-forming substrate is heated, the contact area between the aerosol-forming substrate and the cavity wall of the inner cavity of the shell is reduced, thereby reducing heat conduction and effectively reducing the surface temperature of the accommodating mechanism that accommodates the aerosol-forming substrate.

[0026] In order to make the above contents of the present invention more clearly understood, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a three-dimensional diagram of an aerosol generating device according to an embodiment of the present invention;

[0028] Figure 2 is a three-dimensional diagram of a containing mechanism of an aerosol generating device according to an embodiment of the present invention;

[0029] Figure 3 is a cross-sectional view of a container mechanism of an aerosol generating device according to an embodiment of the present invention, wherein the black arrows in the figure indicate the direction of the airflow.

[0030] Flow direction;

[0031] Figure 4 is a top view of the containing mechanism of the aerosol generating device according to an embodiment of the present invention;

[0032] Figure 5 is a schematic diagram of the connection between the containing mechanism and the aerosol-forming substrate of the aerosol-generating device according to an embodiment of the present invention;

[0033] Figure 6 is a bottom view of the containing mechanism of the aerosol generating device according to an embodiment of the present invention;

[0034] Figure 7 is a three-dimensional diagram of the main body of the aerosol generating device according to an embodiment of the present invention;

[0035] Figure 8 is a cross-sectional view of an aerosol generating device according to an embodiment of the present invention;

[0036] Fig. 9 Schematic diagram of the connection between the accommodating mechanism and the clamping part of the aerosol generating device according to the embodiment of the present invention Figure 1 ;

[0037] Fig.10 Schematic diagram of the connection between the accommodating mechanism and the clamping part of the aerosol generating device according to the embodiment of the present invention Figure 2 ;

[0038] Fig.11 Schematic diagram of the connection between the accommodating mechanism and the clamping part of the aerosol generating device according to the embodiment of the present invention Figure 3 . DETAILED DESCRIPTION

[0039] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description.

[0040] refer to Figure 1 and Figure 2 The present invention provides a container mechanism 10 for an aerosol generating device 1, wherein the aerosol generating device 1 is provided with a heating body 22 (see Figure 7 ), combined with Figure 4 As shown, the heating body 22 is used to be inserted into the aerosol-forming substrate 30 placed on the containing mechanism 10, and the aerosol-forming substrate 30 is heated to generate aerosol for inhalation. The containing mechanism 10 of the present invention comprises: a housing 10a, the housing 10a having an inner cavity 13, and an inner cavity 14 along the axial direction ( Figure 2 The two ends of the housing 10a are open.

[0041] refer to Figure 3 and Figure 4, the inner cavity 13 of the housing 10a is used to place the aerosol-forming substrate 30. After the aerosol-forming substrate 30 is placed in the inner cavity 13 of the housing 10a, the inner cavity 13 of the housing 10a clamps the aerosol-forming substrate 30, and the outer surface of the aerosol-forming substrate 30 contacts the cavity wall of the inner cavity 13 of the housing 10a, and the contact area between the aerosol-forming substrate 30 and the cavity wall of the inner cavity 13 is smaller than the surface area of ​​the cavity wall of the inner cavity 13. In this embodiment, the ratio of the contact area between the aerosol-forming substrate 30 and the cavity wall of the inner cavity 13 to the surface area of ​​the cavity wall of the inner cavity 13 is 0.1 to 0.7, including 0.1 and 0.7.

[0042] The surface area of ​​the cavity wall of the inner cavity 13 refers to the surface area of ​​the inner surface corresponding to the region where the aerosol-forming substrate 30 is inserted into the inner cavity 13 of the housing 10a. Figure 5 , the depth of the aerosol-forming substrate 30 inserted into the inner cavity 13 of the housing 10a is H, then the surface area of ​​the inner surface corresponding to this depth of the inner cavity 13 of the housing 10a is the surface area of ​​the cavity wall of the inner cavity 13, and in this area, the contact area between the aerosol-forming substrate 30 and the cavity wall of the inner cavity 13 is smaller than the surface area of ​​the cavity wall of the inner cavity 13. That is, the surface area of ​​the inner surface of the portion of the cavity wall of the inner cavity 13 of the housing 10a facing the aerosol-forming substrate 30 is larger than the contact area between the aerosol-forming substrate 30 and this portion of the cavity wall of the inner cavity 13.

[0043] This is equivalent to reducing the contact area between the aerosol-forming substrate 30 and the cavity wall of the inner cavity 13 of the housing 10a by the accommodating mechanism 10 of the present invention. The heating body 22 is inserted into the aerosol-forming substrate 30 on the accommodating mechanism 10. When the aerosol-forming substrate 30 is heated, the contact area between the aerosol-forming substrate 30 and the cavity wall of the inner cavity 13 of the housing 10a is reduced, thereby reducing heat conduction and effectively reducing the surface temperature of the accommodating mechanism 10 that accommodates the aerosol-forming substrate 30.

[0044] Continue to refer Figure 2 and Figure 3 The cavity wall of the inner cavity 13 of the present invention is provided with a plurality of spaced grooves 12 along the circumferential direction, and the grooves 12 are formed by protrusions 12a provided on the cavity wall of the inner cavity 13 of the shell 10a. Along the circumferential direction, the cavity wall of the inner cavity 13 is provided with a plurality of spaced protrusions 12a, and adjacent protrusions 12a form the above-mentioned grooves 12. After the aerosol forming substrate 30 is inserted into the inner cavity 13 of the shell 10a, the outer surface of the aerosol forming substrate 30 contacts the protrusions 12a in the inner cavity 13 of the shell 10a, and the protrusions 12a clamp the aerosol forming substrate 30.

[0045] The groove 12 in the inner cavity 13 is axially ( Figure 2 The axial direction is consistent with the extension direction of the heating body 22. Figure 3 and Figure 4After the aerosol-forming substrate 30 contacts the protrusion 12a in the inner cavity 13, the groove 12 in the inner cavity 13 forms an airflow path. When the heating body 22 heats the aerosol-forming substrate 30, when the user inhales, the outside air enters the aerosol generating device 1 along the airflow path, which is convenient for the user to inhale. Figure 3 The black arrows in the middle show the direction of air flow in the accommodation mechanism 10 .

[0046] During the user's inhalation process, the outside air flows through the outer surface of the aerosol-forming substrate 30 through the groove 12, which can fully utilize the heat dissipated from the surface of the aerosol-forming substrate 30 to achieve the purpose of preheating the air, shorten the time for the heating body 22 to cool and reheat, and reduce power consumption. At the same time, the aerosol-forming substrate 30 contacts the protrusion 12a, reducing the contact area between the aerosol-forming substrate 30 and the cavity wall of the inner cavity 13 of the shell 10a. After the contact area between the aerosol-forming substrate 30 and the cavity wall of the inner cavity 13 of the shell 10a is reduced, the purpose of reducing heat conduction is achieved, and the surface temperature of the accommodating mechanism 10 that accommodates the aerosol-forming substrate 30 is effectively reduced.

[0047] In addition, in the present invention, at least part of the groove 12 is connected to the outside in the axial direction. Figure 3 All the grooves 12 are connected to the outside in the axial direction. After such arrangement, the air flow path is unobstructed, which is conducive to the user's suction.

[0048] Continue to refer Figure 2 and Figure 3 , along the axial direction ( Figure 3 The inner cavity 13 of the housing 10a has a wall including a first portion 102 and a second portion 101, wherein the first portion 102 is used to surround the heating body 22; Figure 6 , the groove 12 includes a first groove 121 provided on the cavity wall of the first part 102; Figure 4 The groove 12 further includes a second groove 122 disposed on the cavity wall of the second portion 101. At least part of the first groove 121 and the second groove 122 correspond to each other in the axial direction.

[0049] In this embodiment, the number of the first grooves 121 and the second grooves 122 is the same, and the first grooves 121 and the second grooves 122 correspond to each other in the axial direction; that is, in the axial direction, the first grooves 121 and the second grooves 122 are connected, so that the air flow path is unobstructed. In other embodiments, the number of the first grooves and the second grooves is different, and multiple first grooves may correspond to one second groove, or multiple second grooves may correspond to one first groove, as long as the first groove and the second groove are connected in the axial direction.

[0050] In the present invention, along the circumferential direction ( Figure 4 and Figure 6 The width of the first groove 121 ( Figure 6 (shown in a) is greater than the width of the second groove 122 ( Figure 4 b). That is, along the axial direction, the projection area of ​​the first groove 121 is greater than the projection area of ​​the second groove 122. Among them, the widths of all the first grooves 121 may be equal; or, the widths of some of the first grooves 121 are equal, and the widths of some of the first grooves 121 are unequal; or, the widths of all the first grooves 121 are unequal, as long as the width of the first groove 121 is greater than the width of the second groove 122. After such arrangement, since the first portion 102 is arranged around the heating body 22, the temperature of this area of ​​the housing 10a is higher than the temperature of the rest of the portion.

[0051] It can be understood that the temperature of the first part 102 of the cavity wall of the shell 10a is higher than the temperature of the second part 101, and the width of the first groove 121 provided in the first part 102 is greater than the width of the second groove 122 provided in the second part 101, so that the contact area between the aerosol forming substrate 30 and the first part 102 is smaller than the contact area with the second part 101, thereby reducing the heat conduction between the aerosol forming substrate 30 and the first part 102 of the cavity wall of the inner cavity 13, and effectively reducing the surface temperature of the containing mechanism 10 corresponding to the first part 102 of the cavity wall of the inner cavity 13 of the shell 10a.

[0052] In this embodiment, the widths of the first grooves 121 are equal, and the widths of the second grooves 122 are equal, which is beneficial to the stable flow of air in the air flow passage.

[0053] Equivalently, in this embodiment, by providing the first groove and the second groove, the contact area between the aerosol-forming substrate and the cavity wall of the inner cavity of the shell is reduced, so that the contact area between the aerosol-forming substrate and the cavity wall of the inner cavity is smaller than the surface area of ​​the cavity wall of the inner cavity. In other embodiments, along the axial direction, the cavity wall of the inner cavity includes a first part and a second part, wherein the first part is used to surround the heating body; the inner diameter of the first part is larger than the inner diameter of the second part, and the groove is provided on the cavity wall of the second part. Equivalently, in other embodiments, only the groove is provided on the second part, and the first part is not provided with a groove. After the aerosol-forming substrate is inserted into the inner cavity of the shell, the groove on the second part clamps the aerosol-forming substrate, and the cavity wall of the first part is gap-matched with the aerosol-forming substrate, which also makes the contact area between the aerosol-forming substrate and the cavity wall of the inner cavity smaller than the surface area of ​​the cavity wall of the inner cavity.

[0054] The gap formed between the cavity wall of the first part and the aerosol-forming substrate forms an air path, and the gap is connected to the groove on the second part, thereby also forming an air flow channel. It should be noted that in other embodiments, after the aerosol-forming substrate is inserted into the inner cavity of the shell, the aerosol-forming substrate may be completely out of contact with the cavity wall of the first part, or may be partially in contact, as long as the cavity wall of the first part and the aerosol-forming substrate gap match.

[0055] It should be noted that the shell 10a of the accommodating mechanism 10 of the present invention is a wear-resistant shell 10a, for example, it can be made of fluoroplastic, nylon 1010, nylon 12, nylon 66 and other materials; the first part 102 of the cavity wall of the inner cavity 13 of the shell 10a is resistant to high temperature, and can be made of high temperature resistant materials such as PEEK and Teflon.

[0056] refer to Figure 1 , Figure 7 and Figure 8 The present invention provides an aerosol generating device 1, which has a main body 20, on which a heating body 22 is provided, and a containing mechanism 10 is detachably connected to the main body 20 of the aerosol generating device 1. Specifically, a clamping portion 21 is provided on the main body 20 of the present invention, and the heating body 22 is located in the clamping portion 21, and the containing mechanism 10 is inserted in the clamping portion 21 and is detachably connected to the clamping portion 21. The heating body 22 needs to be cleaned after heating the aerosol-forming substrate 30 for a long time. When cleaning, the containing mechanism 10 is removed from the main body 20, so as to facilitate comprehensive cleaning of the heating body 22. Since the containing mechanism 10 is detachably connected to the main body 20, it is convenient to remove the containing mechanism 10 from the main body 20.

[0057] It should be noted that the detachable connection method between the receiving mechanism 10 and the main body 20 is not limited. Figure 8 and Fig. 9 , the clamping portion 21 is engaged with the accommodating mechanism 10. Figure 2 The outer surface of the housing 10a is provided with a first convex portion 11, referring to Figure 7 The inner surface of the clamping part 21 is provided with a second protrusion 23. After the accommodating mechanism 10 is inserted into the clamping part 21 along the axial direction, the first protrusion 11 and the second protrusion 23 are engaged. When there is no external force, the axial movement of the accommodating mechanism 10 is restricted, and the accommodating mechanism 10 will not be separated from the clamping part 21. When cleaning is required, a force is applied to the accommodating mechanism 10 to pull the accommodating mechanism 10 out of the clamping part 21, and the heating body 22 is completely exposed, so as to facilitate cleaning of the heating body 22.

[0058] In other embodiments, the outer surface of the shell is provided with a convex part, the inner surface of the clamping part is provided with a concave part, and the convex part and the concave part are clamped together; or, the outer surface of the shell is provided with a concave part, the inner surface of the clamping part is provided with a convex part, and the convex part and the concave part are clamped together. Alternatively, the accommodating mechanism and the main body adopt other clamping methods to achieve a detachable connection between the accommodating mechanism and the main body.

[0059] refer to Fig.10 Combined with Figure 1 As shown, the portion of the main body 20 facing the shell 10a is provided with a first magnet 24, and the portion of the shell 10a facing the main body 20 is provided with a second magnet 14 with a polarity opposite to that of the first magnet 24. That is, the portion of the shell 10a facing the main body 20 is provided with a magnet with a polarity opposite to that of the magnet on the main body 20. After the accommodating mechanism 10 is axially inserted into the clamping portion 21, the first magnet 24 and the second magnet 14 with opposite polarities are adsorbed together. In the absence of external force, the first magnet 24 and the second magnet 14 will not separate, and the accommodating mechanism 10 will not detach from the clamping portion 21. When cleaning is required, a force is applied to the accommodating mechanism 10 to separate the first magnet 24 and the second magnet 14, thereby pulling the accommodating mechanism 10 out of the clamping portion 21, and the heating body 22 is completely exposed, so as to facilitate cleaning of the heating body 22. This is equivalent to achieving a detachable connection between the accommodating mechanism 10 and the main body 20 by magnet adsorption.

[0060] refer to Fig.11 Combined with Figure 1 As shown, the outer surface of the housing 10a is provided with an external thread, and the inner surface of the clamping portion 21 is provided with an internal thread, and the internal thread and the external thread are connected to realize the detachable connection between the accommodating mechanism 10 and the main body 20. When cleaning is required, the accommodating mechanism 10 is screwed out of the clamping portion 21, and the heating body 22 is completely exposed, so as to facilitate cleaning of the heating body 22. In other words, the accommodating mechanism 10 and the main body 20 are detachably connected by threaded connection.

[0061] It should be noted that the detachable connection method between the accommodating mechanism 10 and the main body 20 is not limited to the above-mentioned connection method, and may also be other connection methods as long as the detachable connection between the accommodating mechanism 10 and the main body 20 can be achieved.

[0062] In summary, the above embodiments provided by the present invention are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A container for an aerosol generating device, wherein the aerosol generating device is provided with a heating body, characterized in that: The heating body is used to be inserted into an aerosol-forming substrate placed on the accommodating mechanism, and the accommodating mechanism comprises: a housing, the housing having an inner cavity for accommodating the aerosol-forming substrate; The cavity wall of the inner cavity is provided with a plurality of protrusions distributed at intervals along the circumferential direction, and an air flow passage is formed between adjacent protrusions, and the protrusions are used to clamp the aerosol-forming substrate, and at least part of the air flow passage is connected to the outside along the axial direction. When inhaling, the outside air enters the aerosol-generating device along the air flow passage and flows through the outer surface of the aerosol-forming substrate; The contact area between the aerosol-forming substrate and the cavity wall of the inner cavity is smaller than the surface area of ​​the cavity wall of the inner cavity; The accommodating mechanism is detachably connected to the main body of the aerosol generating device, and the heating body can be exposed so as to clean the heating body; the heating body is arranged on the main body.

2. The accommodating mechanism according to claim 1, characterized in that: The ratio of the contact area of ​​the aerosol-forming substrate with the cavity wall of the inner cavity to the surface area of ​​the cavity wall of the inner cavity is 0.1 to 0.

7.

3. The accommodating mechanism according to claim 1, characterized in that: The cavity wall of the inner cavity is provided with a plurality of grooves distributed at intervals along the circumferential direction, and the grooves extend along the axial direction, and the axial direction is consistent with the extension direction of the heating body.

4. The accommodation mechanism according to claim 3, characterized in that: At least part of the groove is communicated with the outside along the axial direction.

5. The accommodation mechanism according to claim 3, characterized in that: Along the axial direction, the cavity wall of the inner cavity includes a first portion and a second portion, wherein the first portion is used to surround the heating body; The groove includes a first groove arranged on the cavity wall of the first part, and a second groove arranged on the cavity wall of the second part.

6. The accommodation mechanism according to claim 5, characterized in that: At least part of the first grooves and the second grooves correspond to each other in the axial direction.

7. The accommodation mechanism according to claim 5, characterized in that: Along the circumferential direction, the width of the first groove is greater than the width of the second groove.

8. The accommodation mechanism according to claim 3, characterized in that: Along the axial direction, the cavity wall of the inner cavity includes a first part and a second part, wherein the first part is used to surround the heating body; the inner diameter of the first part is larger than the inner diameter of the second part, and the groove is arranged on the cavity wall of the second part.

9. The accommodation mechanism according to claim 1, characterized in that: The outer surface of the shell is provided with external threads.

10. The accommodation mechanism according to claim 1, characterized in that: The shell is used for clamping with the main body.

11. The accommodation mechanism according to claim 10, characterized in that: The outer surface of the shell is provided with a concave portion or a convex portion.

12. The accommodation mechanism according to claim 1, characterized in that: A magnet having a polarity opposite to that of the magnet on the main body is provided on a portion of the shell facing the main body.

13. An aerosol generating device, characterized in that: include: A main body, wherein a heating body is provided on the main body; The accommodating mechanism according to any one of claims 1 to 12 is detachably connected to the main body.

14. The aerosol generating device according to claim 13, characterized in that The main body is provided with a clamping portion, the heating body is located in the clamping portion, and the accommodating mechanism is inserted in the clamping portion and is detachably connected to the clamping portion.

15. The aerosol generating device according to claim 14, characterized in that The clamping portion is engaged with the accommodating mechanism.

16. The aerosol generating device according to claim 15, characterized in that The outer surface of the shell is provided with a first convex portion, the inner surface of the clamping portion is provided with a second convex portion, and the first convex portion and the second convex portion are snap-fitted; or, the outer surface of the shell is provided with a convex portion, the inner surface of the clamping portion is provided with a concave portion, and the convex portion and the concave portion are snap-fitted; or, the outer surface of the shell is provided with a concave portion, the inner surface of the clamping portion is provided with a convex portion, and the convex portion and the concave portion are snap-fitted.

17. The aerosol generating device according to claim 14, characterized in that The outer surface of the shell is provided with an external thread, the inner surface of the clamping portion is provided with an internal thread, and the internal thread is connected to the external thread.

18. The aerosol generating device according to claim 14, characterized in that A first magnet is disposed on a portion of the main body facing the shell, and a second magnet having a polarity opposite to that of the first magnet is disposed on a portion of the shell facing the main body.

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