Aerosol-generating device

Abstract

The utility model discloses an aerosol generating device, and belongs to the technical field of atomization, the aerosol generating device comprises a first shell and a second shell, and the first shell and the second shell are connected to form a containing cavity; the inner shell is accommodated in the accommodating cavity; the inner shell is provided with a supporting part, and when the inner shell is contained in the containing cavity, the supporting part supports the connecting position of the first shell and the second shell so as to prevent the first shell and the second shell from concaving inwards and deforming. According to the aerosol generating device, the connecting position of the first shell and the second shell is supported through the supporting part, the inward concave parts of the first shell and the second shell are supported, the segment difference between the first shell and the second shell is reduced, and then the situation that a user is scratched due to the segment difference between the first shell and the second shell when using the aerosol generating device is avoided.

Description

Technical Field

[0001] This application relates to the field of atomization technology, and in particular, to an aerosol generating device. Background Art

[0002] Existing aerosol generating devices generally adopt an assembly method in which an inner shell is sleeved in two connected outer shells. The outer shell is usually produced by plastic molding, and this method has the problem that the outer shell is sunken inward. During the design of the aerosol generating device, in order to facilitate the installation of the inner shell and the outer shell, an installation gap is usually left between the inner shell and the outer shell, and the outer shell will be sunken inward. The outer shell generally adopts two shells connected face to face. Because the outer shell is sunken inward, there is a step difference between the outer shells, which affects the overall appearance of the product. Moreover, when the user uses it, it is easy to be scratched due to the step difference between the outer shells. Summary of the Utility Model

[0003] The main purpose of this application is to provide an aerosol generating device to solve the problem of the step difference of the outer shell in the prior art.

[0004] According to one aspect of this application, an aerosol generating device is provided, including: a first shell and a second shell, the first shell and the second shell are connected to form a receiving cavity; and an inner shell, the inner shell is received in the receiving cavity, the inner shell has a supporting portion, and the supporting portion supports the connection portion of the first shell and the second shell to prevent the first shell and the second shell from being concave and deformed.

[0005] In some embodiments, the first shell and the second shell are fitted together face to face, and the first shell and the second shell jointly hold the inner shell in the receiving cavity.

[0006] In some embodiments, the first shell includes a first fitting portion and a second fitting portion arranged oppositely, the second shell includes a third fitting portion and a fourth fitting portion arranged oppositely, the first fitting portion cooperates with the third fitting portion, and the second fitting portion cooperates with the fourth fitting portion to fit the first shell and the second shell; the supporting portion supports the connection portion between the first fitting portion and the third fitting portion and the connection portion between the second fitting portion and the fourth fitting portion.

[0007] In some of these embodiments, the first housing includes a first connecting portion and a second connecting portion. The first connecting portion is connected to the first fitting portion, and a first step is formed at the connection between the first connecting portion and the first fitting portion. The second connecting portion is connected to the second fitting portion, and a second step is formed at the connection between the second connecting portion and the second fitting portion. The second housing includes a third connecting portion and a fourth connecting portion. The third connecting portion is connected to the third fitting portion, and the fourth connecting portion is connected to the fourth fitting portion. One end of the third fitting portion away from the third connecting portion abuts against the first step, and one end of the fourth fitting portion away from the fourth connecting portion abuts against the second step. The surface of the first connecting portion is flush with the surface of the third fitting portion, and the surface of the second connecting portion is flush with the surface of the fourth fitting portion.

[0008] In some of these embodiments, the inner housing includes a fifth wall and a sixth wall disposed opposite to each other. The support portion includes a first support portion and a second support portion. The first support portion is disposed on the surface of the fifth wall, and the second support portion is disposed on the surface of the sixth wall. The first support portion abuts against the first fitting portion, and the second support portion abuts against the second fitting portion.

[0009] In some of these embodiments, one of the first fitting portion and the fifth wall is provided with a first connection hole, and the other of the first fitting portion and the fifth wall is provided with a first buckle adapted to the first connection hole. One of the second fitting portion and the sixth wall is provided with a second connection hole, and the other of the second fitting portion and the sixth wall is provided with a second buckle adapted to the second connection hole. When the inner housing is snap-fitted with the first housing, the first buckle snaps into the first connection hole, and the second buckle snaps into the second connection hole.

[0010] In some of these embodiments, the top surface of the first buckle is flush with the surface of the first fitting portion, and the top surface of the second buckle is flush with the surface of the second fitting portion.

[0011] In some of these embodiments, one of the first fitting portion and the third fitting portion is provided with a third buckle, and the other of the first fitting portion and the third fitting portion is provided with a first card slot adapted to the third buckle. One of the second fitting portion and the fourth fitting portion is provided with a fourth buckle, and the other of the second fitting portion and the fourth fitting portion is provided with a second card slot adapted to the fourth buckle. When the first housing and the second housing are fitted together towards each other, the third buckle snaps into the first card slot, and the fourth buckle snaps into the second card slot.

[0012] In some of these embodiments, the second housing includes a second side wall that is connected between the third connection portion and the fourth connection portion; the inner housing includes a fourth side wall that is connected between the fifth wall and the sixth wall; one of the second side wall and the fourth side wall is provided with a fifth buckle, and the other of the second side wall and the fourth side wall is provided with a third connection hole adapted to the fifth buckle; the fifth buckle is snap-connected to the third connection hole.

[0013] In some of these embodiments, the fifth buckle is provided on the second side wall, the third connection hole is provided on the fourth side wall, the fifth buckle passes through the third connection hole, and a stop surface of the fifth buckle abuts against an inner surface of the fourth side wall.

[0014] The connection between the first housing and the second housing is supported by a support portion on the inner housing, which supports the inward depressions of the first housing and the second housing, reduces the step difference between the first housing and the second housing, and thus prevents the user from being scratched when using the aerosol generating device due to the step difference between the first housing and the second housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The illustrative embodiments and descriptions thereof of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0016] Figure 1 is a perspective view of the aerosol generating device disclosed in the present application.

[0017] Figure 2 is the

[0018] Figure 3 is an exploded view of another perspective of the aerosol generating device disclosed in the present application.

[0019] Figure 4 is a cross-sectional view taken along the A-A direction of the connection between the first housing and the second housing Figure 1 in the middle.

[0020] Figure 5 is Figure 1 a cross-sectional view taken along the A-A direction.

[0021] Figure 6 is Figure 5 an enlarged view of the E position in the middle.

[0022] Figure 7 is Figure 5 an enlarged view of the F position in the middle.

[0023] Figure 8 is Figure 1Cross-sectional view along the B-B direction.

[0024] Figure 9 is Figure 8 the enlarged view at G in

[0025] Figure 10 is Figure 8 the enlarged view at H in

[0026] Figure 11 is Figure 1 cross-sectional view along the C-C direction.

[0027] Figure 12 is Figure 11 the enlarged view at I in

[0028] Figure 13 is Figure 11 the enlarged view at J in

[0029] Figure 14 is Figure 1 cross-sectional view along the D-D direction.

[0030] Figure 15 is Figure 14 the enlarged view at K in

[0031] Figure 16 is the perspective view of the second housing disclosed in the present application.

[0032] Wherein, the above-mentioned drawings include the following reference numerals:

[0033] The aerosol generating device 100, the first housing 10, the first wall 11, the first fitting portion 111, the first connecting portion 112, the first step 113, the first connecting hole 114, the third buckle 115, the third stop surface 1151, the third inclined surface 1152, the second wall 12, the second fitting portion 121, the second connecting portion 122, the second step 123, the second connecting hole 124, the fourth buckle 125, the fourth stop surface 1251, the fourth inclined surface 1252, the first side wall 13, the second housing 20, the third wall 21, the third fitting portion 211, the first card slot 213, the third connecting portion 212, the fourth wall 22, the fourth fitting portion 221, the second card slot 223, the fourth connecting portion 222, the second side wall 23, the fifth buckle 24, the fifth stop surface 241, the fifth inclined surface 242, the elastic arm 243, the accommodation cavity 30, the inner housing 40, the fifth wall 41, the sixth wall 42, the third side wall 43, the fourth side wall 44, the first support portion 45, the first buckle 46, the first stop surface 461, the first inclined surface 462, the second support portion 47, the second buckle 48, the second stop surface 481, the second inclined surface 482, the third connecting hole 49. Detailed implementation manners

[0034] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The following will describe the present application in detail with reference to the drawings and in combination with the embodiments.

[0035] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or their combinations.

[0036] Unless otherwise specifically stated, the relative arrangements of the components and steps set forth in these embodiments, numerical expressions, and numerical values do not limit the scope of the present application. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0037] See Figures 1 to 4 As shown, the present application provides an aerosol generating device 100, including: a first housing 10, a second housing 20, and an inner housing 40. The first housing 10 and the second housing 20 are connected to form a receiving cavity 30, and the inner housing 40 is received in the receiving cavity 30.

[0038] The inner housing 40 has a support portion. When the inner housing 40 is received in the receiving cavity 30, the support portion supports the connection between the first housing 10 and the second housing 20. By supporting the connection between the first housing 10 and the second housing 20 through the support portion on the inner housing 40, the inward depressions of the first housing 10 and the second housing 20 are supported, reducing the step difference between the first housing 10 and the second housing 20, and thus avoiding scratching the user when using the aerosol generating device 100 due to the step difference between the first housing 10 and the second housing 20.

[0039] Refer to Figures 2 to 3 As shown, in some embodiments, the first housing 10 and the second housing 20 are fitted together facing each other, and the first housing 10 and the second housing 20 jointly hold the inner housing 40 in the receiving cavity 30.

[0040] Specifically, the first housing 10 includes a first wall 11, a second wall 12, and a first side wall 13. The first side wall 13 is connected between the first wall 11 and the second wall 12; the first wall 11 and the second wall 12 are disposed on the same side of the first side wall 13.

[0041] A first fitting portion 111 is provided at one end of the first wall 11 away from the first side wall 13, and a second fitting portion 121 is provided at one end of the second wall 12 away from the first side wall 13.

[0042] Refer to Figures 5 to 7 As shown, specifically, the first wall 11 further includes a first connecting portion 112. The first connecting portion 112 is connected between the first fitting portion 111 and the first side wall 13; the second wall 12 further includes a second connecting portion 122. The second connecting portion 122 is connected between the second fitting portion 121 and the first side wall 13; a first step 113 is formed at the connection between the first fitting portion 111 and the first connecting portion 112, and a second step 123 is formed at the connection between the second fitting portion 121 and the second connecting portion 122.

[0043] Specifically, refer to Figures 5 to 7 and Figure 16 As shown, the second housing 20 includes a third wall 21 and a fourth wall 22 disposed opposite to each other and a second side wall 23 connecting the third wall 21 and the fourth wall 22. The third wall 21 and the fourth wall 22 are disposed on the same side of the second side wall 23; the second housing includes a third connecting portion and a fourth connecting portion. The third connecting portion is connected to the third fitting portion, and the fourth connecting portion is connected to the fourth fitting portion.

[0044] Among them, the third wall 21 includes a third fitting portion 211 and a third connecting portion 212; a third fitting portion 211 is provided at one end of the third wall 21 away from the second side wall 23, and the third fitting portion 211 is used for fitting with the first housing 10; the third connecting portion 212 is connected between the third fitting portion 211 and the second side wall 23. The fourth wall 22 includes a fourth fitting portion 221 and a fourth connecting portion 222; a fourth fitting portion 221 is provided at one end of the fourth wall 22 away from the second side wall 23, and the fourth fitting portion 221 is used for fitting with the first housing 10; the fourth connecting portion 222 is connected between the fourth fitting portion 221 and the second side wall 23.

[0045] Refer to Figures 2 to 3 and Figures 5 to 7 As shown, when the first housing 10 is fitted into the second housing 20, the first fitting portion 111 and the second fitting portion 121 are fitted into the second housing 20. The outer side surface of the first fitting portion 111 abuts against the inner side surface of the third fitting portion 211, and the outer side surface of the second fitting portion 121 abuts against the inner side surface of the fourth fitting portion 221; the first step 113 abuts against the end surface of the third fitting portion 211 away from the third connecting portion 212, and the second step 123 abuts against the end surface of the fourth fitting portion 221 away from the fourth connecting portion 222.

[0046] Wherein, the supporting part supports the connection parts between the first fitting part 111 and the third fitting part 211, and between the second fitting part 121 and the fourth fitting part 221.

[0047] In addition, the outer side surface of the first connecting part 112 is flush with the outer side surface of the third wall 21, and the outer side surface of the second connecting part 122 is flush with the outer side surface of the fourth wall 22.

[0048] Refer to Figures 2 to 3 As shown, in some embodiments, the inner shell 40 includes opposite fifth wall 41 and sixth wall 42, and opposite third side wall 43 and fourth side wall 44. One end of the fifth wall 41 and the sixth wall 42 is connected by the third side wall 43, and the other end of the fifth wall 41 and the sixth wall 42 is connected by the fourth side wall 44; the supporting part includes a first supporting part 45 and a second supporting part 47; the first supporting part 45 is arranged on the outer side surface of the fifth wall 41, and the second supporting part 47 is arranged on the outer side surface of the sixth wall 42.

[0049] Refer to Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 、 Figures 8 to 10 As shown, when the inner shell 40 is received in the receiving cavity 30, the first supporting part 45 abuts against the first fitting part 111; the second supporting part 47 abuts against the second fitting part 121 of the second wall 12; the third side wall 43 is close to the first side wall 13, and the fourth side wall 44 is close to the second side wall 23.

[0050] Refer to Figures 2 to 3 and Figures 11 to 13 As shown, regarding the assembly between the first housing 10 and the inner shell 40, in some embodiments, the following settings are adopted. One of the first fitting part 111 and the fifth wall 41 is provided with a first connection hole 114, and the other of the first fitting part 111 and the fifth wall 41 is provided with a first buckle 46 adapted to the first connection hole 114. One of the second fitting part 121 and the sixth wall 42 is provided with a second connection hole 124, and the other of the second fitting part 121 and the sixth wall 42 is provided with a second buckle 48 adapted to the second connection hole 124.

[0051] When the inner shell 40 is buckled with the first housing 10, the first buckle 46 is inserted into the first connection hole 114, and the stop surface of the first buckle 46 abuts against the side surface of the first connection hole 114; the second buckle 48 is inserted into the second connection hole 124, and the stop surface of the second buckle 48 abuts against the side surface of the second connection hole 124.

[0052] In some embodiments, the first connection hole 114 is arranged on the first fitting part 111, and the first buckle 46 is arranged on the surface of the fifth wall 41; the second connection hole 124 is arranged on the second fitting part 121, and the second buckle 48 is arranged on the surface of the sixth wall 42.

[0053] In some other embodiments, the first connection hole 114 is provided on the fifth wall 41, and the first buckle 46 is provided on the inner side surface of the first fitting portion 111; the second connection hole 124 is provided on the sixth wall 42, and the second buckle 48 is provided on the inner side surface of the second fitting portion 121.

[0054] Specifically, when the inner shell 40 is buckled to the first shell 10, the first buckle 46 is inserted into the first connection hole 114, and the stop surface of the first buckle 46 abuts against the side surface of the first connection hole 114 away from the first connection portion 112; the second buckle 48 is inserted into the second connection hole 124, and the stop surface of the second buckle 48 abuts against the side surface of the second connection hole 124 away from the second connection portion 122.

[0055] Further, the top surface of the first buckle 46 is flush with the surface of the first fitting portion 111, and the top surface of the second buckle 48 is flush with the surface of the second fitting portion 121.

[0056] Specifically, the first buckle 46 includes a first stop surface 461 close to the fourth side wall 44 and a first inclined surface 462 away from the fourth side wall 44; the second buckle 48 includes a second stop surface 481 close to the fourth side wall 44 and a second inclined surface 482 away from the fourth side wall 44.

[0057] During the buckling process of the inner shell 40 and the first shell 10, the first inclined surface 462 abuts against the first fitting portion 111, the second inclined surface 482 abuts against the second fitting portion 121, and at the same time, the first shell 10 elastically deforms in a direction away from the inner shell 40.

[0058] When the inner shell 40 and the first shell 10 are buckled completely, the first shell 10 resets, the first stop surface 461 abuts against the surface of the first connection hole 114 away from the first connection portion 112, and the second stop surface 481 abuts against the surface of the second connection hole 124 away from the second connection portion 122.

[0059] Refer to Figures 2 to 3 and Figures 8 to 10 As shown, regarding the assembly between the first shell 10 and the second shell 20, in some embodiments, the following settings are adopted. One of the first fitting portion 111 and the third fitting portion 211 is provided with a third buckle 115, and the other of the first fitting portion 111 and the third fitting portion 211 is provided with a first card slot 213 adapted to the third buckle 115;

[0060] One of the second fitting portion 121 and the fourth fitting portion 221 is provided with a fourth buckle 125, and the other of the second fitting portion 121 and the fourth fitting portion 221 is provided with a second card slot 223 adapted to the fourth buckle 125;

[0061] When the first housing 10 and the second housing 20 are fitted together facing each other, the third buckle 115 is snapped into the first card slot 213, and the fourth buckle 125 is snapped into the second card slot 223; the stop surface of the third buckle 115 abuts against the side surface of the first card slot 213, and the stop surface of the fourth buckle 125 abuts against the side surface of the second card slot 223 that is far away.

[0062] In some embodiments, the third buckle 115 is provided on the inner side surface of the third fitting portion 211, and the fourth buckle 125 is provided on the inner side surface of the fourth fitting portion 221; the first card slot 213 is provided on the outer side surface of the first fitting portion 111, and the second card slot 223 is provided on the outer side surface of the second fitting portion 121.

[0063] In other embodiments, the third buckle 115 is provided on the outer side surface of the first fitting portion 111, and the fourth buckle 125 is provided on the outer side surface of the second fitting portion 121; the first card slot 213 is provided on the inner side surface of the third fitting portion 211, and the second card slot 223 is provided on the inner side surface of the fourth fitting portion 221.

[0064] Specifically, when the first housing 10 and the second housing 20 are snap-connected, the third buckle 115 is snapped into the first card slot 213, and the fourth buckle 125 is snapped into the second card slot 223; the stop surface of the third buckle 115 abuts against the side surface of the first card slot 213 that is far away from the third sub-connection portion, and the stop surface of the fourth buckle 125 abuts against the side surface of the second card slot 223 that is far away from the fourth sub-connection portion.

[0065] More specifically, the third buckle 115 includes a third stop surface 1151 close to the first connection portion 112 and a third inclined surface 1152 far away from the first connection portion 112; the fourth buckle 125 includes a fourth stop surface 1251 close to the second connection portion 122 and a fourth inclined surface 1252 far away from the second connection portion 122.

[0066] During the process of snapping together the first housing 10 and the second housing 20, the third inclined surface 1152 abuts against the third fitting portion 211, the fourth inclined surface 1252 abuts against the fourth fitting portion 221, and at the same time, the second housing 20 elastically deforms in a direction away from the inner housing 40.

[0067] When the first housing 10 and the second housing 20 are completely snapped together, the second housing 20 returns to its original position, the third inclined surface 1152 abuts against the surface of the first card slot 213 close to the third connection portion 212, and the third stop surface 1151 abuts against the surface of the first card slot 213 far away from the third connection portion 212; the fourth inclined surface 1252 abuts against the surface of the second card slot 223 close to the fourth connection portion 222, and the fourth stop surface 1251 abuts against the surface of the second card slot 223 far away from the fourth connection portion 222.

[0068] Refer to Figures 2 to 3 and Figure 14 and Figure 15As shown, regarding the assembly between the second housing 20 and the inner housing 40, in some embodiments, the following arrangement is adopted. One of the second side wall 23 and the fourth side wall 44 is provided with a fifth buckle 24, specifically two oppositely arranged fifth buckles 24. The other of the second side wall 23 and the fourth side wall 44 is provided with a third connection hole 49 adapted to the fifth buckle 24; the fifth buckle 24 passes through the third connection hole 49 and is snap-connected.

[0069] In some embodiments, the fifth buckle 24 is provided on the surface of the fourth side wall 44, and the third connection hole 49 is provided on the second side wall 23. When the inner housing 40 and the second housing 20 are snap-connected, the fifth buckle 24 passes through the third connection hole 49, and the stop surface of the fifth buckle 24 abuts against the inner side surface of the fourth side wall 44.

[0070] In other embodiments, the fifth buckle 24 is provided on the inner side surface of the second side wall 23, and the third connection hole 49 is provided on the fourth side wall 44. When the inner housing 40 and the second housing 20 are snap-connected, the fifth buckle 24 passes through the third connection hole 49, and the stop surface of the fifth buckle 24 abuts against the inner side surface of the fourth side wall 44.

[0071] Specifically, the fifth buckle 24 includes a fifth stop surface 2311 close to the second side wall 23, a fifth inclined surface 2312 far from the second side wall 23, and an elastic arm 2313 connecting the fifth stop surface 2311 and the second side wall 23.

[0072] During the buckling process of the inner housing 40 and the second housing 20, the fifth inclined surface 2312 abuts against the side wall of the third connection hole 49, and at the same time, the elastic arm 2313 elastically deforms towards the center of the third connection hole 49.

[0073] When the inner housing 40 and the second housing 20 are buckled completely, the elastic arm 2313 resets, and the fifth stop surface 2311 abuts against the surface of the third connection hole 49 far from the second side wall 23.

[0074] The aerosol generating device 100 in the embodiment of the present invention further includes a mouthpiece 50, a control module, a power module, and an air passage. The mouthpiece 50, the control module, the power module, and the air passage are all conventional technologies in the art, so the layout and connection thereof will not be described in detail here.

[0075] For ease of description, spatial relative terms, such as "above", "over", "on the upper surface", "upper", etc., may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations of the spatial relative descriptions used herein will be made.

[0076] In addition, it should be noted that the use of terms such as "first" and "second" to define components is only for the convenience of differentiating the corresponding components. Without further statement, the above terms have no special meaning, and thus should not be construed as limiting the protection scope of the present application.

[0077] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. An aerosol generating device, characterized in that, Comprising: A first housing (10) and a second housing (20), the first housing (10) and the second housing (20) being connected to form a receiving cavity (30); And An inner housing (40), the inner housing (40) being received in the receiving cavity (30), the inner housing (40) having a support portion that supports the connection between the first housing (10) and the second housing (20) to prevent the first housing (10) and the second housing (20) from being concave and deformed.

2. The aerosol generating device according to claim 1, wherein The first housing (10) and the second housing (20) are fitted together in an opposite direction, and the first housing (10) and the second housing (20) jointly embrace the inner housing (40) in the receiving cavity (30).

3. The aerosol generating device according to claim 2, characterized in that, The first housing (10) includes a first fitting portion (111) and a second fitting portion (121) arranged oppositely, the second housing (20) includes a third fitting portion (211) and a fourth fitting portion (221) arranged oppositely, the first fitting portion (111) cooperates with the third fitting portion (211), and the second fitting portion (121) cooperates with the fourth fitting portion (221) to fit the first housing (10) and the second housing (20); The support portion supports the connection between the first fitting portion (111) and the third fitting portion (211) and the connection between the second fitting portion (121) and the fourth fitting portion (221).

4. The aerosol generating device according to claim 3, characterized in that, The first housing (10) includes a first connection portion (112) and a second connection portion (122), the first connection portion (112) is connected to the first fitting portion (111), and a first step (113) is formed at the connection between the first connection portion (112) and the first fitting portion (111); the second connection portion (122) is connected to the second fitting portion (121), and a second step (123) is formed at the connection between the second connection portion (122) and the second fitting portion (121); The second housing (20) includes a third connection portion (212) and a fourth connection portion (222), the third connection portion (212) is connected to the third fitting portion (211), the fourth connection portion (222) is connected to the fourth fitting portion (221), the first step (113) abuts against one end of the third fitting portion (211) away from the third connection portion (212), and the second step (123) abuts against one end of the fourth fitting portion (221) away from the fourth connection portion (222); the surface of the first connection portion (112) is flush with the surface of the third fitting portion (211), and the surface of the second connection portion (122) is flush with the surface of the fourth fitting portion (221).

5. The aerosol generating device according to claim 4, wherein The inner shell (40) includes a fifth wall (41) and a sixth wall (42) that are oppositely arranged; the support portion includes a first support portion (45) and a second support portion (47); the first support portion (45) is disposed on the surface of the fifth wall (41), and the second support portion (47) is disposed on the surface of the sixth wall (42); the first support portion (45) abuts against the first fitting portion (111), and the second support portion (47) abuts against the second fitting portion (121).

6. The aerosol generating device according to claim 5, wherein, One of the first fitting portion (111) and the fifth wall (41) is provided with a first connection hole (114), and the other of the first fitting portion (111) and the fifth wall (41) is provided with a first buckle (46) adapted to the first connection hole (114); One of the second fitting portion (121) and the sixth wall (42) is provided with a second connection hole (124), and the other of the second fitting portion (121) and the sixth wall (42) is provided with a second buckle (48) adapted to the second connection hole (124); When the inner shell (40) is snap-connected to the first shell (10), the first buckle (46) snaps into the first connection hole (114); the second buckle (48) snaps into the second connection hole (124).

7. The aerosol generating device according to claim 6, wherein, The top surface of the first buckle (46) is flush with the surface of the first fitting portion (111), and the top surface of the second buckle (48) is flush with the surface of the second fitting portion (121).

8. The aerosol generating device according to claim 3, wherein, One of the first fitting portion (111) and the third fitting portion (211) is provided with a third buckle (115), and the other of the first fitting portion (111) and the third fitting portion (211) is provided with a first slot (213) adapted to the third buckle (115); One of the second fitting portion (121) and the fourth fitting portion (221) is provided with a fourth buckle (125), and the other of the second fitting portion (121) and the fourth fitting portion (221) is provided with a second slot (223) adapted to the fourth buckle (125); When the first shell (10) and the second shell (20) are fitted together, the third buckle (115) snaps into the first slot (213), and the fourth buckle (125) snaps into the second slot (223).

9. The aerosol generating device according to claim 5, wherein, The second shell (20) includes a second side wall (23), and the second side wall (23) is connected between the third connecting portion (212) and the fourth connecting portion (222); The inner shell (40) includes a fourth side wall (44), and the fourth side wall (44) is connected between the fifth wall (41) and the sixth wall (42); One of the second side wall (23) and the fourth side wall (44) is provided with a fifth buckle (24), and the other of the second side wall (23) and the fourth side wall (44) is provided with a third connection hole (49) adapted to the fifth buckle (24); the fifth buckle (24) is snap-connected to the third connection hole (49).

10. The aerosol generating device according to claim 9, wherein, The fifth buckle (24) is provided on the second side wall (23), the third connecting hole (49) is provided on the fourth side wall (44), the fifth buckle (24) passes through the third connecting hole (49), and the stopping surface of the fifth buckle (24) abuts against the inner side surface of the fourth side wall (44).

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