Support and electronic equipment protective shell
By welding the first connecting medium between the support and the first connecting member in the bracket, the problem of insufficient firmness and aesthetics of the existing bracket connection method is solved, and higher durability and aesthetics are achieved.
Patent Information
- Application Number
- CN202421694401.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-16
AI Technical Summary
The riveted connection method of existing brackets leads to poor firmness and stability, and is prone to leaving traces, reducing the durability and aesthetics of the product.
By welding the first connecting medium between the support and the first connecting member, a firm connection between the support and the first connecting member is achieved. The combination of rotary connection and welding connection is adopted to improve the structural stability and aesthetics of the support.
The structure of the bracket is achieved by a stronger structure, able to withstand greater loads and more frequent use, improving durability and extending service life, while maintaining the smooth and tidy surface of the bracket and improving overall aesthetics.
Smart Images
Figure CN223024447U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of protective cases for electronic devices, and particularly to a bracket and a protective case for an electronic device. Background Art
[0002] With the continuous progress of technology, electronic devices such as smart phones and tablet computers have penetrated into all aspects of our lives and become an indispensable part of modern life. When watching videos, making video calls, reading e-books or using various applications, in order to obtain a better visual experience and reduce physical fatigue caused by long-term use, we need to adjust these electronic devices to a comfortable angle, and the bracket plays a role in supporting the electronic devices to increase the convenience and comfort of using the electronic devices.
[0003] Existing brackets usually consist of basic components such as a rotating shaft, a hinge, a support member, and a base. In the existing bracket assembly process, the assembly process generally follows the steps of first assembling the rotating shaft and the hinge, and then fixedly connecting the hinge to the support member and the hinge to the base by means of riveting. However, the firmness and stability of the riveting connection are poor, and it is easy to leave marks on the support member and the base, which not only reduces the durability of the product, but also damages the overall aesthetics of the product. Summary of the Utility Model
[0004] Therefore, in order to overcome at least some of the defects and deficiencies in the prior art, the embodiments of the present utility model provide a bracket and a protective case for an electronic device, which can make the structure of the bracket more firm, improve the durability of the bracket, and keep the surface of the bracket smooth and clean as before, thus improving the overall aesthetics.
[0005] Specifically, on the one hand, the bracket provided by the embodiment of the present utility model includes: a support member; a first connecting member fixedly connected to the support member; a second connecting member, the first connecting member is rotatably connected to the second connecting member, and the second connecting member is used for connecting an external device; and a first connecting medium welded between the support member and the first connecting member.
[0006] In a specific embodiment of the present utility model, the support member and the first connecting member are made of a metal material, and the melting point of the first connecting medium is lower than the melting point of the support member and / or the first connecting member.
[0007] In a specific embodiment of the present utility model, a first connecting portion is provided on the support member, a second connecting portion is provided on the first connecting member, the first connecting medium is welded between the first connecting portion and the second connecting portion, and the first connecting medium is respectively in contact with the first connecting portion and the second connecting portion.
[0008] In a specific embodiment of the present invention, the first connecting portion has a first surface connected to the first connecting medium, the second connecting portion has a second surface connected to the first connecting medium, and the first connecting medium is attached between the first surface and the second surface.
[0009] In a specific embodiment of the utility model, a first groove is provided on the support member, the first connecting portion is the bottom wall of the first groove, the second connecting portion is located in the first groove, and the surface of the second connecting portion is flush with the surface of the support member or the surface of the second connecting portion is lower than the surface of the support member.
[0010] On the other hand, an embodiment of the utility model also provides an electronic device protective case, comprising: a shell having a back panel; a bracket, the bracket comprising a second connecting piece; a third connecting part is arranged on the back panel, the electronic device protective case also comprises a third connecting piece and a second connecting medium, the second connecting piece and the third connecting piece are respectively located on both sides of the third connecting part, and the second connecting medium is fused between the second connecting piece and the third connecting piece.
[0011] In a specific embodiment of the present invention, the bracket is the aforementioned bracket.
[0012] In a specific embodiment of the present utility model, the shell also has a side frame connected to the back plate, and the side frame and the back plate form an electronic device accommodating cavity; a mounting through hole is provided on the back plate, and the mounting through hole has a first inner wall and a second inner wall opposite to each other, and the third connecting part includes a first protrusion and a second protrusion, the first protrusion is provided on the first inner wall, and the second protrusion is provided on the second inner wall; the second connecting member is connected to a side of the first protrusion and the second protrusion close to the electronic device accommodating cavity, and the third connecting member is connected to a side of the first protrusion and the second protrusion away from the electronic device accommodating cavity.
[0013] In a specific embodiment of the present invention, the second connecting member and the third connecting member are made of metal, and the melting point of the second connecting medium is lower than the melting point of the second connecting member and / or the third connecting member.
[0014] In a specific embodiment of the present invention, it further includes: a protective connector connected to the second connector or the back plate and located on a side of the second connector close to the electronic device accommodating cavity.
[0015] As can be seen from the above, in the embodiment of the present utility model, by welding the first connecting medium between the support member and the first connecting member, a firm connection between the support member and the first connecting member is achieved, the structure of the bracket is more firm, it can withstand greater loads and more frequent use, the durability of the bracket is improved and the service life of the bracket is extended, and the welding process of welding the first connecting medium between the support member and the first connecting member does not leave marks on the support member or the first connecting member. Therefore, the surface of the bracket remains smooth and clean as before, improving the overall aesthetics of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0017] Figure 1 FIG. is a schematic structural diagram of a bracket provided by an embodiment of the present utility model.
[0018] Figure 2 For Figure 1 the exploded view of the shown bracket.
[0019] Figure 3 For Figure 1 the cross-sectional view of the shown bracket.
[0020] Figure 4 For Figure 3 the partial enlarged view of area A in.
[0021] Figure 5 FIG. is a schematic structural diagram of an electronic device protective case provided by an embodiment of the present utility model.
[0022] Figure 6 For Figure 5 the exploded view of the shown electronic device protective case.
[0023] Figure 7 For Figure 5 the cross-sectional view of the shown electronic device protective case.
[0024] Figure 8 For Figure 7 the partial enlarged view of area B in.
[0025] Figure 9 For Figure 5 the another exploded view of the shown electronic device protective case.
[0026] Figure 10 For Figure 9Partial enlarged view of the middle region C.
[0027] Figure 11 is Figure 5 Schematic structural diagram of the bracket in a supported state in the shown protective case for an electronic device.
[0028] Figure 12 is Figure 11 Schematic cross-sectional view of the protective case for an electronic device shown.
[0029] Figure 13 is Figure 12 Partial enlarged view of the middle region D.
[0030]
Description of Reference Numerals
[0031] 1: Protective case for an electronic device; 10: Bracket; 20: Back panel; 21: Mounting through hole; 22: First inner wall; 23: First bump; 24: Second inner wall; 25: Second bump; 30: Side frame; 40: Second connecting member; 50: Third connecting member; 60: Second connecting medium; 70: Protective connecting member; 100: Support member; 101: First groove; 200: First connecting member; 201: Housing; 300: Rotating shaft; 400: First connecting medium. Detailed Embodiment
[0032] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only partial embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments described in the present utility model without creative efforts fall within the protection scope of the present utility model.
[0033] It should be noted that all directional indications (such as up, down, left, right, front, back, top, bottom) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. In addition, the term "perpendicular" involved in the embodiments and claims of the utility model means that the included angle between two elements is 90° or there is a deviation of -5° to +5°, and the term "parallel" involved means that the included angle between two elements is 0° or there is a deviation of -5° to +5°.
[0034] In the embodiments of the present utility model, descriptions such as "first" and "second" are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature.
[0035] Referring to Figure 1 and Figure 5 , this embodiment provides a bracket 10 and an electronic device protective case 1. The bracket 10 provided in this embodiment can be connected to the electronic device protective case 1 for application, for example. The electronic device protective case 1 is, for example, a protective case for an external device, and the external device can be, for example, an electronic device such as a smart phone, a tablet computer, a notebook computer, a flat-panel TV, etc. The bracket 10 provides a stable support platform for the electronic device, and the bracket 10 can support the electronic device through the electronic device protective case 1, enabling users to use these devices more conveniently.
[0036] As Figure 1 and Figure 2 shown, a bracket 10 provided in the embodiments of the present utility model. The bracket 10 includes, for example, a support member 100, a first connecting member 200, a second connecting member 40, and a first connecting medium 400.
[0037] Specifically, the first connecting member 200 is, for example, fixedly connected to the support member 100. The first connecting member 200 is rotatably connected to the second connecting member 40, and the second connecting member 40 is used to connect an external device. The first connecting medium 400 is, for example, welded between the support member 100 and the first connecting member 200. The support member 100 can be, for example, an annular support member as Figure 1 shown, and of course, it can also be of other shapes, such as circular, rectangular, etc. This embodiment is not limited thereto. The first connecting member 200 is, for example, a hinge, and the first connecting member 200 is, for example, used to connect between the second connecting member 40 and the support member 100 so that the support member 100 can rotate relative to the external device. The second connecting member 40 is, for example, of the same structure as the first connecting member 200, and details are not elaborated here. The second connecting member 40 is, for example, rotatably connected to the first connecting member 200 through a rotating shaft 300, and the second connecting member 40 is, for example, fixedly connected to an external device (such as a protective case for an electronic device such as a mobile phone or a tablet) to enable the support member 100 to rotate relative to the external device. Referring to Figure 3 and Figure 4 , the first connecting medium 400 is, for example, welded between the support member 100 and the first connecting member 200. It should be noted that welding means melting the first connecting medium 400 by applying high voltage electricity or other means, so that the support member 100 and the first connecting member 200 are connected to each other through the melted first connecting medium 400 to form a firm connection.
[0038] Among them, during the welding process of welding the first connecting medium 400 between the support member 100 and the first connecting member 200, specifically, first, the support member 100 and the first connecting member 200 are simultaneously energized, and the support member 100 and the first connecting member 200 are respectively connected to two electrodes with opposite electrical polarities. The first connecting medium 400 is used to melt when the support member 100 and the first connecting member 200 are energized so that the support member 100 and the first connecting member 200 are fixedly connected. In this embodiment, for example, the support member 100 is connected to the positive electrode, and the first connecting member 200 is connected to the negative electrode. In other embodiments, for example, the support member 100 is connected to the negative electrode, and the first connecting member 200 is connected to the positive electrode. Specifically, there is no limitation here. In this embodiment, welding the first connecting medium 400 between the support member 100 and the first connecting member 200 can simplify the connection structure and improve production efficiency.
[0039] In the embodiment of the present utility model, by welding the first connecting medium 400 between the support member 100 and the first connecting member 200, a firm connection between the support member 100 and the first connecting member 200 is achieved. The structure of the bracket 10 is more firm, capable of withstanding greater loads and more frequent use, improving the durability of the bracket 10 and extending the service life of the bracket 10. Moreover, no traces will be left on the support member 100 or the first connecting member 200 during the welding process of welding the first connecting medium 400 between the support member 100 and the first connecting member 200. Therefore, the surface of the bracket 10 remains smooth and clean as before, enhancing the overall aesthetic appearance of the product.
[0040] Specifically, the support member 100 and the first connecting member 200 are made of materials with good electrical conductivity and good heat conductivity, such as manganese steel or other suitable metal materials, to generate heat through the current and quickly transfer the heat generated by the current. The melting point of the first connecting medium 400 is, for example, lower than the melting point of the support member 100 and / or the first connecting member 200. In some embodiments, the first connecting medium 400 is made of low-melting-point materials such as tin, lead, bismuth, etc., which are easy to be heated and melted by the current to achieve rapid connection, and at the same time, provide a stable and firm connection effect after solidification. In the embodiment of the present utility model, the shape and thickness of the first connecting medium 400 are not limited, as long as the amount of the first connecting medium 400 is sufficient to achieve a firm fixed connection between the support member 100 and the first connecting member 200.
[0041] Specifically, for example, a first connection portion is provided on the support member 100, a second connection portion is provided on the first connection member 200, the first connection medium 400 is welded between the first connection portion and the second connection portion, and the first connection medium 400 is respectively attached to the first connection portion and the second connection portion. The first connection portion is, for example, a groove provided on the support member 100, and the second connection portion is, for example, a surface of the first connection member 200 close to the aforementioned groove. A gap is provided between the first connection portion and the second connection portion to place the first connection medium 400 in the aforementioned gap. By welding the first connection medium 400 between the first connection portion and the second connection portion, a firm connection between the support member 100 and the first connection member 200 is achieved, making the structure of the bracket 10 more firm and capable of withstanding greater loads and more frequent use.
[0042] Furthermore, the first connection portion, for example, has a first surface connected to the first connection medium 400, the second connection portion, for example, has a second surface connected to the first connection medium 400, and the first connection medium 400 is attached between the first surface and the second surface. In this embodiment, by making the first surface and the second surface respectively attached to the first connection medium 400, the connection between the first connection portion, the first connection medium 400, and the second connection portion can be made closer, achieving a firm connection between the support member 100 and the first connection member 200 and making the structure of the bracket 10 more firm.
[0043] Specifically, referring to Figure 8 , for example, a first groove 101 is provided on the support member 100, the first connection portion is the bottom wall of the first groove 101, the second connection portion is located within the first groove 101, and the surface of the second connection portion is flush with the surface of the support member 100 or the surface of the second connection portion is lower than the surface of the support member 100, making the connection between the support member 100, the first connection member 200, and the first connection medium 400 closer, so as to make the connection between the support member 100 and the first connection member 200 more firm.
[0044] Referring to Figure 5 and Figure 6 , an embodiment of the present utility model provides an electronic device protective case 1. The electronic device protective case 1, for example, includes a housing 201 and a bracket 10 (here, the bracket 10 can be the aforementioned bracket or a conventional bracket in the prior art). The housing 201, for example, includes a back plate 20 and side frames 30. The second connection member 40 is, for example, fixedly connected to the back plate 20 to enable the bracket 10 to rotate relative to the back plate 20.
[0045] Referring to Figure 7 and Figure 8, the electronic device housing 1 further includes, for example, a third connecting member 50 and a second connecting medium 60. For example, a third connecting portion is provided on the back plate 20. The third connecting portion is, for example, a protruding structure provided on the back plate 20 or other applicable structures. The third connecting portion is used to position the second connecting member 40 and the third connecting member 50 on both sides of the third connecting portion respectively, and to weld the second connecting medium 60 between the second connecting member 40 and the third connecting member 50. In this embodiment, by welding the second connecting medium 60 between the third connecting member 50 and the second connecting member 40, a firm connection between the bracket 10 and the back plate 20 is achieved, making the structure of the electronic device housing 1 more firm, capable of withstanding greater loads and more frequent use, improving the durability of the electronic device housing 1 and extending its service life, and leaving no marks on the bracket 10 or the back plate 20. Therefore, the surface of the electronic device housing 1 remains smooth and clean as before, enhancing the overall aesthetic appearance of the product.
[0046] Referring to Figure 9 , for example, the back plate 20 is provided with mounting through holes 21. The side frame 30 is, for example, connected to the back plate 20. The side frame 30 and the back plate 20 form an electronic device accommodation cavity. The electronic device accommodation cavity is used to accommodate an electronic device so that the electronic device housing 1 can be sleeved on the electronic device to protect the electronic device. The back plate 20 and the side frame 30 can be, for example, integrally formed, or can be connected together by injection molding, pasting, etc. Of course, this embodiment is not limited thereto.
[0047] Specifically, the support member 100 is, for example, rotatably connected to the back plate 20 through a rotating shaft 300. The second connecting member 40 is, for example, disposed in the mounting through hole 21 and is disposed close to the electronic device accommodation cavity. The second connecting member 40 is connected to the rotating shaft 300. The third connecting member 50 is, for example, disposed on the mounting through hole 21, and the third connecting member 50 is disposed away from the electronic device accommodation cavity. Referring to Figure 7 , Figure 8 , Figure 11 , Figure 12 and Figure 13 , the second connecting medium 60 is, for example, connected between the third connecting member 50 and the second connecting member 40. The second connecting member 40 is, for example, of the same structure as the first connecting member 200, and the second connecting medium 60 is, for example, of the same material as the first connecting medium 400, which will not be elaborated here. The third connecting member 50 is, for example, configured to match the mounting through hole 21 so that the third connecting member 50 is disposed in the mounting through hole 21. One of the second connecting member 40 and the first connecting member 200 is fixedly connected to the rotating shaft 300, and the other of the second connecting member 40 and the first connecting member 200 is rotatably connected to the rotating shaft 300 to achieve the relative rotation of the back plate 20 with respect to the support member 100.
[0048] Among them, in the welding process of welding the second connecting medium 60 between the third connecting member 50 and the second connecting member 40, specifically, firstly, the third connecting member 50 and the second connecting member 40 are energized at the same time, and the third connecting member 50 and the third connecting member 50 are respectively connected to two electrodes with opposite electrical properties, and the second connecting medium 60 is used to melt when the third connecting member 50 and the second connecting member 40 are energized at the same time so that the third connecting member 50 and the second connecting member 40 are fixedly connected. The embodiment of the utility model does not limit the shape and thickness of the second connecting medium 60, and it is only necessary to meet the requirement that the amount of the second connecting medium 60 is sufficient to realize the third connecting member 50 and the second connecting member 40 to be firmly fixedly connected. In this embodiment, the third connecting member 50 and the second connecting member 40 are fixedly connected by the second connecting medium 60, so that the connection between the bracket and the back plate is more secure, the durability of the electronic device protective shell 1 is improved, and the surface of the electronic device protective shell 1 remains smooth and tidy, which improves the overall aesthetics.
[0049] Reference Figure 10 The mounting through hole 21 has a first inner wall 22 and a second inner wall 24 opposite to each other. A first protrusion 23 is provided on the first inner wall 22, and a second protrusion 25 is provided on the second inner wall 24. The first protrusion 23 and the second protrusion 25 are used to provide positioning points so that the second connector 40 and the third connector 50 can be accurately positioned in the through hole. The second connector 40 is, for example, connected to a side of the first protrusion 23 and the second protrusion 25 close to the electronic device accommodating cavity, and the third connector 50 is, for example, connected to a side of the second connector 40, the first protrusion 23 and the second protrusion 25 away from the electronic device accommodating cavity.
[0050] Specifically, the support member 100 is connected to the second connecting member 40 through the rotating shaft 300, and the second connecting member 40 is fixedly connected to the third connecting member 50 through the second connecting medium 60. The second connecting member 40 and the third connecting member 50 are fixed in the mounting through hole 21 of the back plate 20 through the second connecting member 40, ensuring that the support member 100 is stably installed on the back plate 20.
[0051] Specifically, the second connector 40 and the third connector 50 are made of materials with good electrical conductivity and good thermal conductivity, such as manganese steel or other applicable metal materials, so as to generate heat through electric current and quickly transfer the heat generated by the electric current, and the second connecting medium 60 is made of a low melting point material. The melting point of the second connecting medium 60 is, for example, lower than the melting point of the second connector 40 and / or the third connector 50. In some embodiments, the second connecting medium 60 is made of a low melting point material such as tin, lead, bismuth, etc., which is easy to melt by electric current heating to achieve rapid connection, and provide a stable and firm connection effect after solidification. The embodiment of the utility model does not limit the shape and thickness of the second connecting medium 60, and it is only necessary to meet the requirement that the amount of the second connecting medium is sufficient to achieve a firm fixed connection between the second connector 40 and the third connector 50.
[0052] Reference Figure 8 and Figure 9 , further comprising a protective connecting member 70, the protective connecting member 70 is connected to the second connecting member 40 or the back plate 20, for example, and the protective connecting member 70 is located on the side of the second connecting member 40 close to the electronic device accommodating cavity. The protective connecting member 70 is made of a soft material such as silica gel or rubber, for example, to prevent the second connecting member 40 made of a metal material from scratching electronic devices such as mobile phones and tablets.
[0053] In addition, it can be understood that the foregoing embodiments are only exemplary descriptions of the present invention. On the premise that there is no conflict in technical features, no contradiction in structure, and no violation of the inventive purpose of the present invention, the technical solutions of the various embodiments can be arbitrarily combined and used in combination.
[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A bracket (10), characterized in that: include: A support member (100); A first connecting member (200) fixedly connected to the supporting member (100); a second connecting member (40), the first connecting member (200) being rotatably connected to the second connecting member (40), and the second connecting member (40) being used for connecting to an external device; as well as A first connecting medium (400) is welded between the supporting member (100) and the first connecting member (200).
2. The bracket (10) according to claim 1, characterized in that: The support member (100) and the first connecting member (200) are made of metal, and the melting point of the first connecting medium (400) is lower than the melting point of the support member (100) and / or the first connecting member (200).
3. The bracket (10) according to claim 1, characterized in that: The support member (100) is provided with a first connection portion, the first connection member (200) is provided with a second connection portion, the first connection medium (400) is welded between the first connection portion and the second connection portion, and the first connection medium (400) is respectively attached to the first connection portion and the second connection portion.
4. The support (10) according to claim 3, characterized in that: The first connecting part has a first surface connected to the first connecting medium (400), the second connecting part has a second surface connected to the first connecting medium (400), and the first connecting medium (400) is attached between the first surface and the second surface.
5. The bracket (10) according to claim 3, characterized in that: The support member (100) is provided with a first groove (101), the first connection portion is the bottom wall of the first groove (101), the second connection portion is located in the first groove (101), and the surface of the second connection portion is flush with the surface of the support member (100) or the surface of the second connection portion is lower than the surface of the support member (100).
6. An electronic device protective case (1), characterized in that: include: The bracket (10) according to any one of claims 1 to 5; A housing (201) having a back plate (20); The bracket (10) includes a second connecting member (40); a third connecting portion is provided on the back plate (20); the electronic device protective case (1) also includes a third connecting member (50) and a second connecting medium (60); the second connecting member (40) and the third connecting member (50) are respectively located on both sides of the third connecting portion; and the second connecting medium (60) is fused between the second connecting member (40) and the third connecting member (50).
7. The electronic device protective case (1) according to claim 6, characterized in that: The housing (201) further comprises a side frame (30) connected to the back plate (20), wherein the side frame (30) and the back plate (20) form an electronic device accommodating cavity; The back plate (20) is provided with a mounting through hole (21), the mounting through hole (21) having a first inner wall (22) and a second inner wall (24) opposite to each other, the third connecting portion comprising a first protrusion (23) and a second protrusion (25), the first protrusion (23) being provided on the first inner wall (22), and the second protrusion (25) being provided on the second inner wall (24); The second connecting member (40) is connected to a side of the first protrusion (23) and the second protrusion (25) close to the electronic device accommodating cavity, and the third connecting member (50) is connected to a side of the first protrusion (23) and the second protrusion (25) away from the electronic device accommodating cavity.
8. The electronic device protective case (1) according to claim 7, characterized in that: The second connecting member (40) and the third connecting member (50) are made of metal, and the melting point of the second connecting medium (60) is lower than the melting point of the second connecting member (40) and / or the third connecting member (50).
9. The electronic device protective case (1) according to claim 7, characterized in that: Also includes: A protective connector (70) is connected to the second connector (40) or the back plate (20) and is located on a side of the second connector (40) close to the electronic device accommodating cavity.