Display screen assembly structure and atomizer

Abstract

The utility model discloses a display screen assembly structure and an atomizer. Belongs to the technical field of atomizers. In the display screen assembling structure, according to the design concept that the display screen is installed on the bearing piece only through the lens, the lens and the display screen form an integrated structure, the display screen is prevented from making contact with the bearing piece, a bearing structure special for installing the display screen is prevented from being arranged, and therefore the overall thickness of the display screen assembling structure is reasonably compressed. And meanwhile, the heat dissipation efficiency of the display screen during working is improved by fully utilizing the back surface and the side surface of the display screen. In addition, the integrated structure can improve the display effect consistency of the display screen and the assembly precision consistency of the display screen and the lens. Moreover, according to the display screen assembly structure, the display screen is firstly fixed on the lens, and then the lens and the display screen which are of an integrated structure are installed on the bearing part together, so that the assembly efficiency of the display screen assembly structure can be improved, and the structural precision requirement of the bearing part can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of atomizers, and in particular to a display screen assembly structure and an atomizer. Background Art

[0002] An atomizer is a device that can heat a target liquid to atomize it to form an aerosol. In existing atomizers with display functions, the display screen is usually first assembled on a dedicated carrier or directly fixed on a circuit board, and then the lens is mounted on the carrier (e.g., housing) and close to the display surface of the display screen. Such an assembly structure results in low assembly efficiency of the display screen and the lens, and high precision requirements on the carrier. Utility Model Content

[0003] The main purpose of the present application is to provide a display screen assembly structure and an atomizer to solve the problem of low assembly efficiency of the display screen assembly structure in the prior art.

[0004] According to one aspect of the present application, a display screen assembly structure is provided, comprising:

[0005] A carrier, wherein a first receiving space is formed on the carrier;

[0006] A lens, wherein the lens is disposed on the carrier and can cover the first receiving space;

[0007] A display screen is adhered to and fixed on the lens, and the display screen is installed on the carrier through the lens and is located in the first receiving space.

[0008] Furthermore, a limiting structure is formed on the carrier, the first receiving space is located in the limiting structure, and the lens is installed in the limiting structure.

[0009] Furthermore, the limiting structure is a limiting groove, and the lens is bonded and fixed in the limiting groove.

[0010] Furthermore, the first receiving space is a through hole, and the display screen is received in the through hole;

[0011] The carrier is also structured to form a second receiving space, the second receiving space is communicated with the first receiving space, and the second receiving space can be used to receive the battery assembly.

[0012] Furthermore, the lens includes a first surface and a second surface arranged opposite to each other, the display screen is adhered and fixed to a first area of ​​the first surface of the lens to form a display screen assembly, the display screen assembly is fixed to the carrier through the second area of ​​the first surface of the lens, the second area is located outside the first area, the first surface of the lens faces the first receiving space, and the second surface of the lens faces away from the first receiving space.

[0013] Furthermore, the bearing member comprises:

[0014] A first carrying portion, the first carrying portion is used to carry the lens; and

[0015] The second bearing part is connected to one side of the first bearing part, and the second bearing part is used to bear a circuit board, and the circuit board is electrically connected to the display screen.

[0016] Furthermore, the first plane on which the lens is located is perpendicular to the second plane on which the circuit board is located.

[0017] Furthermore, the lens is arranged at a certain distance from the circuit board;

[0018] The bearing member is provided with a wire groove corresponding to the certain distance, the wire groove is communicated with the first receiving space and is located on the side of the display screen, and the wire groove is used for the connection wire connecting the circuit board and the display screen to pass through.

[0019] Further, a side of the second bearing portion close to the first bearing portion is structured to be formed with an abutment member and an elastic buckle arm;

[0020] The first surface of the circuit board away from the lens abuts against the abutment member;

[0021] The elastic buckle arm limits the second surface of the circuit board close to the lens and the side surface of the circuit board;

[0022] The abutment member and the elastic buckle arm jointly buckle and fix the circuit board on the second bearing portion.

[0023] On the other hand, the present application also provides an atomizer, comprising a shell, and a display screen assembly structure as described in any one of the above items, wherein the display screen assembly structure is arranged in the shell, and the shell is provided with a light-transmitting area corresponding to the display screen.

[0024] Furthermore, the carrier is provided with a first elastic clamp arm and a second elastic clamp arm, and the first elastic clamp arm is arranged opposite to the second elastic clamp arm;

[0025] The inner side of the shell is provided with a first clamping position corresponding to the first elastic clamping arm, and the inner side of the shell is provided with a second clamping position corresponding to the second elastic clamping arm, and the bearing member is elastically clamped with the shell.

[0026] In the display screen assembly structure of the present application, by setting the design concept that the display screen is installed on the carrier only by the lens, the lens and the display screen form an integrated structure, which not only avoids the contact between the display screen and the carrier, but also avoids the setting of a bearing structure dedicated to installing the display screen, thereby reasonably compressing the overall thickness of the display screen assembly structure. At the same time, the back and side of the display screen are fully utilized to improve the heat dissipation efficiency of the display screen when it is working. In addition, the structure in which the display screen and the lens form an integrated structure can also improve the consistency of the display screen and the lens, that is, the consistency of the display effect and the consistency of the assembly accuracy of the integrated structure formed by each display screen and the lens. Moreover, in the present application, the display screen can also be fixed on the lens first, and then the lens and the display screen assembly of the integrated structure can be installed on the carrier together, thereby improving the assembly efficiency of the display screen assembly structure and reducing the structural accuracy requirements of the carrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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 of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0028] Figure 1 It is an overall schematic diagram of a display screen assembly structure in an embodiment disclosed in the present application.

[0029] Figure 2 It is a cross-sectional view of a display screen assembly structure in an embodiment disclosed in the present application.

[0030] Figure 3 This is a schematic diagram from another viewing angle of the display screen assembly structure in one embodiment disclosed in the present application.

[0031] Figure 4 It is a schematic diagram of a carrier in one embodiment disclosed in the present application.

[0032] Figure 5 This is a schematic diagram from another perspective of a carrier in an embodiment disclosed in the present application.

[0033] Figure 6 This is another perspective schematic diagram of a carrier in an embodiment disclosed in the present application.

[0034] Figure 7 This is a schematic diagram of the assembly of a display screen and a lens in an embodiment disclosed in the present application.

[0035] Figure 8 This is a schematic diagram of assembling a display screen and a lens from another viewing angle in an embodiment disclosed in the present application.

[0036] Fig. 9 This is an exploded schematic diagram of a display screen and a lens in an embodiment disclosed in the present application.

[0037] Fig.10 This is a schematic diagram of a circuit board in an embodiment disclosed in the present application.

[0038] Fig.11 This is a schematic diagram of another viewing angle of a circuit board in an embodiment disclosed in the present application.

[0039] Fig.12 This is a schematic diagram of an atomizer in one embodiment disclosed in the present application.

[0040] Fig.13 It is a cross-sectional view of an atomizer in one embodiment disclosed in the present application.

[0041] The above drawings include the following reference numerals:

[0042] Carrying member 10, first receiving space 11, limiting structure 12, first bearing part 13, second bearing part 14, wire groove 15, abutment member 161, limiting rod part 1611, elastic buckle arm 162, second receiving space 17, first elastic clamping arm 18, second elastic clamping arm 19, lens 20, first surface 21, first area 211, second area 212, second surface 22, display screen 30, circuit board 40, first surface 41, second surface 42, limiting hole 43, charging interface 50, shell 200, light transmission area 210, first clamping position 220, second clamping position 230. DETAILED DESCRIPTION

[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0044] 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, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0045] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0046] See also Figure 1-6 As shown, the present application provides a display screen assembly structure, which includes a carrier 10 , a lens 20 and a display screen 30 .

[0047] Furthermore, a first receiving space 11 is formed on the carrier 10 , and the first receiving space 11 is used to receive the display screen 30 .

[0048] The lens 20 is disposed on the carrier 10 , and the display screen 30 is adhered and fixed on the lens 20 , and the display screen 30 is fixed on the carrier 10 only through the lens 20 .

[0049] The lens 20 can cover the first receiving space 11 . When the lens 20 is mounted and fixed on the carrier 10 , the display screen 30 is located in the first receiving space 11 .

[0050] In this embodiment, the display screen 30 is installed on the carrier 10 only through the lens 20, so that the lens 20 and the display screen 30 form an integrated structure, which not only avoids the contact between the display screen 30 and the carrier 10, but also avoids the need to set up a bearing structure dedicated to installing the display screen 30, thereby reasonably compressing the overall thickness of the display screen assembly structure and making full use of the back and sides of the display screen 30 for heat dissipation, thereby effectively improving the heat dissipation efficiency of the display screen 30 when it is working.

[0051] In addition, the integrated structure formed by the display screen 30 and the lens 20 can also improve the consistency between the display screen 30 and the lens 20, that is, the display effect consistency and assembly accuracy consistency of the integrated structure formed by each display screen 30 and the lens 20.

[0052] In the present application, by first fixing the display screen 30 on the lens 20 to form the integrated structure, and then installing the lens 20 and the display screen 30 of the integrated structure on the carrier 10 together, the assembly efficiency of the display screen assembly structure can be improved, and the structural accuracy requirements of the carrier 10 can be reduced.

[0053] Furthermore, a limiting structure 12 is formed on the carrier 10 , the first receiving space 11 is located in the limiting structure 12 , and the lens 20 is installed in the limiting structure 12 and covers the first receiving space 11 .

[0054] By providing the limiting structure 12 , the lens 20 can be installed on the carrier 10 in a limited manner, and further, by limiting the installation of the lens 20 , the display screen 30 can be stably installed on the carrier 10 .

[0055] In one embodiment, the limiting structure 12 is a limiting groove, and the lens 20 is bonded and fixed in the limiting groove. Therefore, the lens 20 can be limited by the side wall of the limiting groove, and the lens 20 can be installed by bonding the lens 20 to the bottom surface of the limiting groove.

[0056] Preferably, when the lens 20 is disposed in the limiting groove, the side of the lens 20 away from the first receiving space 11 does not extend out of the limiting groove, so that the limiting groove can be used to provide better protection and limiting effect for the lens 20.

[0057] In another embodiment, the limiting structure 12 may also be provided with an elastic limiting arm to limit and fix the lens 20 on the carrier 10 .

[0058] In other embodiments, the lens 20 may be limited and fixed on the carrier 10 by locking screws or the like.

[0059] Furthermore, in one embodiment, the first receiving space 11 is a groove, and the groove is used to receive the display screen 30 .

[0060] In another embodiment, the first receiving space 11 is a through hole, and the display screen 30 is received in the through hole. By setting the first receiving space 11 as a through hole, the good air flow in the through hole can be fully utilized to improve the heat dissipation efficiency of the display screen 30 received in the through hole during operation.

[0061] Furthermore, the carrier 10 is also structured to form a second receiving space 17, and the second receiving space 17 is connected to the first receiving space 11. By providing the second receiving space 17, not only can the flow space of the heat dissipated by the display screen 30 when working be increased, but also the overall structure of the carrier 10 can be simplified, and the second receiving space 17 can be used to accommodate other components. For example, the second receiving space 17 can be used to accommodate a battery assembly; or, the second receiving space 17 can be used to accommodate a battery assembly and a cigarette cartridge, etc.

[0062] For further information, see Figure 7-9 As shown, the lens 20 includes a first surface 21 and a second surface 22 that are oppositely disposed. The first surface 21 includes a first area 211 and a second area 212 , and the second area 212 is located at the periphery of the first area 211 .

[0063] The display screen 30 is adhered to and fixed on the first area 211 of the first surface 21 of the lens 20, thereby forming a display screen assembly with the lens 20. The display screen assembly is fixed to the carrier 10 through the second area 212 of the first surface 21 of the lens 20, so that the display screen 30 is installed on the carrier 10.

[0064] The first surface 21 of the lens 20 faces the first receiving space 11 , and the second surface 22 of the lens 20 faces away from the first receiving space 11 , so that the display surface of the display screen 30 is in contact with and fixedly connected to the first surface 21 of the lens 20 .

[0065] Furthermore, the display screen 30 may be directly bonded to the first area 211 of the first surface 21 of the lens 20 through the display surface; the display screen 30 may also be connected to the lens 20 through a bracket to be bonded and fixed to the first area 211 of the lens 20.

[0066] For further information, please refer to Figure 1-6 As shown, the carrier 10 includes a first carrier portion 13 and a second carrier portion 14. The first carrier portion 13 is used to carry the lens 20; the second carrier portion 14 is connected to one side of the first carrier portion 13, and the second carrier portion 14 is used to carry the circuit board 40.

[0067] The circuit board 40 is electrically connected to the display screen 30 and is used to transmit current and signals to the display screen 30. The second receiving space 17 is located between the second carrying portion 14 and the first carrying portion 13.

[0068] By arranging the circuit board 40 on the second bearing portion 14, the circuit board 40 and the display screen 30 can be installed separately on the bearing member 10 at a certain distance. Therefore, the mutual interference of the heat generated by the circuit board 40 and the display screen 30 in the working state can be reduced, thereby improving the heat dissipation efficiency of the display screen 30 and the circuit board 40.

[0069] In one embodiment, the first plane where the lens 20 is located is perpendicular to the second plane where the circuit board 40 is located. Therefore, the first bearing portion 13 and the second bearing portion 14 are connected to each other so that the bearing member 10 is generally in an "L"-shaped structure. The bearing member 10 in a generally "L"-shaped structure can also facilitate the installation of the display assembly and the circuit board 40, that is, the display assembly will not hinder the installation of the circuit board 40, and the circuit board 40 will not affect the installation of the display assembly.

[0070] In other embodiments, the first plane and the second plane may form an acute angle or an obtuse angle.

[0071] Furthermore, the lens 20 is disposed at a certain distance from the circuit board 40 , so that the display screen 30 is disposed at a certain distance from the circuit board 40 .

[0072] The carrier 10 is provided with a wire groove 15 at a position corresponding to the certain distance, and the wire groove 15 is used for allowing a connection wire connecting the circuit board 40 and the display screen 30 to pass through.

[0073] Furthermore, the wire groove 15 is connected to the first receiving space 11 and is located on the side of the display screen 30. At the same time, the wire groove 15 is also connected to the second receiving space 17, so that the connecting wire can be routed from the second receiving space 17 to the wire groove 15 and electrically connected between the circuit board 40 and the display screen 30.

[0074] The provision of the wire groove 15 not only facilitates the routing of the connecting wires, but also can increase the heat dissipation space of the display screen 30 corresponding to the side of the wire groove 15 to a certain extent, thereby improving the heat dissipation efficiency of the display screen 30 .

[0075] Furthermore, a mounting structure is formed on one side of the second bearing portion 14 close to the first bearing portion 13 . The mounting structure is used to mount the circuit board 40 . The mounting structure includes an abutment member 161 and an elastic buckle arm 162 .

[0076] See also Figure 10-11As shown, the circuit board 40 includes a first surface 41 and a second surface 42 that are relatively arranged. The first surface 41 of the circuit board 40 is away from the lens 20 and abuts against the abutment 161; the second surface 42 of the circuit board 40 close to the lens 20 and the side of the circuit board 40 are limited by the elastic buckle arm 162, so that the abutment 161 and the elastic buckle arm 162 jointly buckle and fix the circuit board 40 on the second bearing portion 14.

[0077] In one embodiment, the mounting structure includes a plurality of the abutting members 161 and a plurality of the elastic buckle arms 162, wherein some of the abutting members 161 may also have a limiting rod 1611, and the circuit board 40 is provided with a matching limiting hole 43 corresponding to the limiting rod 1611. When the circuit board 40 is mounted on the mounting structure, the limiting rod 1611 is passed through and limited in the limiting hole 43, so that the circuit board 40 can be limited along the second plane direction.

[0078] By providing the mounting structure, it is possible to avoid providing locking parts (such as screws) to fix the circuit board 40, and the loading and unloading of the circuit board 40 can be completed by hand, thereby improving the loading and unloading efficiency; and, providing the elastic buckle arm 162 can meet the installation of circuit boards 40 with larger specification differences, thereby reducing the accuracy requirements of the specifications of the circuit board 40; at the same time, only a portion of the surface of the circuit board 40 is in contact with the abutment 161 and the elastic buckle arm 162, which can effectively increase the heat dissipation area of ​​the circuit board 40, thereby improving the heat dissipation effect of the circuit board 40.

[0079] On the other hand, see Figure 12-13 Combined with Figure 1-6 As shown, the present application further provides an atomizer, which includes any one of the display screen assembly structures described above. Therefore, the atomizer also has all the beneficial effects of the above display screen assembly structure, which will not be repeated here.

[0080] Furthermore, the atomizer includes a housing 200 , the display screen assembly structure is disposed in the housing 200 , and the housing 200 is provided with a light-transmitting area 210 corresponding to the display screen 30 .

[0081] In the atomizer of this embodiment, the carrier 10 only serves as an internal structural component of the atomizer. Therefore, the carrier 10 only has the function of supporting the display screen 30, the circuit board 40 and the lens 20, and does not have the function of protecting internal components such as anti-collision that an external structural component should have.

[0082] Furthermore, the carrier 10 is provided with a first elastic clamp arm 18 and a second elastic clamp arm 19, and the first elastic clamp arm 18 is arranged opposite to the second elastic clamp arm 19. The inner side of the housing 200 is provided with a first clamping position 220 corresponding to the first elastic clamp arm 18, and a second clamping position 230 corresponding to the second elastic clamp arm 19.

[0083] When the first elastic clamping arm 18 is clamped with the first clamping position 220 and the second elastic clamping arm 19 is clamped with the second clamping position 230 , the carrier 10 is elastically clamped with the housing 200 and the display screen 30 , the lens 20 , the circuit board 40 , etc. are installed in the housing 200 .

[0084] By connecting the carrier 10 in the housing 200 in a snap-fit ​​manner, the display screen assembly structure can be installed in the housing 200 as a whole, so that the display screen assembly structure can be quickly assembled in the housing 200.

[0085] Furthermore, after the display screen assembly structure is assembled in the housing 200 , the distance between the second surface 22 of the lens 20 and the corresponding inner surface of the housing 200 is 0-1.5 mm.

[0086] When the spacing is 0 mm, the display effect of the display screen 30 observed from the light-transmitting area 210 is optimal; when the spacing is greater than 0 mm, for example, when the spacing is 1.5 mm, the carrier 10 carrying the display screen 30, the circuit board 40 and the lens 20 can be easily inserted into the housing 200.

[0087] Furthermore, the first surface 41 of the circuit board 40 is also electrically connected to a charging interface 50, and the charging interface 50 is electrically connected to the battery in the battery assembly through the circuit board 40, and the charging interface 50 is connected to the outside through the carrier 10 and the shell 200.

[0088] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0089] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0090] The above are only 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 variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A display screen assembly structure, characterized in that: include: A carrier (10), wherein a first receiving space (11) is formed on the carrier (10); A lens (20), wherein the lens (20) is disposed on the carrier (10), and the lens (20) can cover the first receiving space (11); A display screen (30), wherein the display screen (30) is bonded to and fixed on the lens (20), and the display screen (30) is mounted on the carrier (10) through the lens (20) and is located in the first receiving space (11).

2. The display screen assembly structure according to claim 1, characterized in that: A limiting structure (12) is also formed on the carrier (10), the first receiving space (11) is located in the limiting structure (12), and the lens (20) is installed in the limiting structure (12).

3. The display screen assembly structure according to claim 2, characterized in that: The limiting structure (12) is a limiting groove, and the lens (20) is bonded and fixed in the limiting groove.

4. The display screen assembly structure according to claim 1, characterized in that: The first receiving space (11) is a through hole, and the display screen (30) is received in the through hole; The carrier (10) is also structured to form a second receiving space (17), the second receiving space (17) is communicated with the first receiving space (11), and the second receiving space (17) can be used to receive a battery assembly.

5. The display screen assembly structure according to claim 1, characterized in that: The lens (20) comprises a first surface (21) and a second surface (22) which are arranged opposite to each other; the display screen (30) is adhered to and fixed on a first area (211) of the first surface (21) of the lens (20) to form a display screen assembly; the display screen assembly is fixed on the carrier (10) via a second area (212) of the first surface (21) of the lens (20); the second area (212) is located at the periphery of the first area (211); the first surface (21) of the lens (20) faces the first receiving space (11), and the second surface (22) of the lens (20) faces away from the first receiving space (11).

6. The display screen assembly structure according to any one of claims 1 to 5, characterized in that: The carrier (10) comprises: A first carrying portion (13), the first carrying portion (13) being used for carrying the lens (20); and A second bearing part (14), wherein the second bearing part (14) is connected to one side of the first bearing part (13), and the second bearing part (14) is used to bear a circuit board (40), and the circuit board (40) is electrically connected to the display screen (30).

7. The display screen assembly structure according to claim 6, characterized in that: The first plane on which the lens (20) is located and the second plane on which the circuit board (40) is located are perpendicular to each other.

8. The display screen assembly structure according to claim 6, characterized in that: The lens (20) and the circuit board (40) are arranged at a certain distance; The carrier (10) is provided with a wire groove (15) corresponding to the certain distance, the wire groove (15) is connected to the first receiving space (11) and is located on the side of the display screen (30), and the wire groove (15) is used for allowing a connection wire connecting the circuit board (40) and the display screen (30) to pass through.

9. The display screen assembly structure according to claim 6, characterized in that: A side of the second bearing portion (14) close to the first bearing portion (13) is structured to be formed with an abutment member (161) and an elastic buckle arm (162); The first surface (41) of the circuit board (40) away from the lens (20) abuts against the abutment member (161); The elastic buckle arm (162) limits the position of the second surface (42) of the circuit board (40) close to the lens (20) and the side surface of the circuit board (40); The abutment member (161) and the elastic buckle arm (162) jointly buckle and fix the circuit board (40) on the second bearing portion (14).

10. An atomizer, characterized in that: It comprises a housing (200) and a display screen assembly structure according to any one of claims 1 to 9, wherein the display screen assembly structure is arranged in the housing (200), and the housing (200) is provided with a light-transmitting area (210) corresponding to the display screen (30).

11. The atomizer according to claim 10, characterized in that The carrier (10) is provided with a first elastic clamping arm (18) and a second elastic clamping arm (19), and the first elastic clamping arm (18) and the second elastic clamping arm (19) are arranged opposite to each other; The inner side of the shell (200) is provided with a first clamping position (220) corresponding to the first elastic clamping arm (18), and a second clamping position (230) corresponding to the second elastic clamping arm (19), and the carrier (10) is elastically clamped with the shell (200).

Images