Electronic equipment

By setting the deformation space between the elastic arm and the shell body in the housing of the electronic device, elastic deformation is achieved to spontaneously apply pressure, solving the problem of insufficient connector reliability, improving connection reliability and reducing production costs.

CN222216113UActive Publication Date: 2024-12-20SHANGHAI WINGTECH INFORMATION TECH CO LTD
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Patent Information

Application Number
CN202420120605.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-01-17
Publication Date
2024-12-20
Estimated Expiration
2034-01-17

AI Technical Summary

Technical Problem

The reliability of connectors in existing electronic devices is insufficient, and it is easy to cause functional failure due to overvoltage or impaired pressure, and increasing materials to improve reliability will increase costs.

Method used

Design an electronic device whose shell contains a deformation space between the elastic arm and the shell body, so that the elastic arm can be elastically deformed, spontaneously applying pressure to the electronic devices on the circuit board, avoiding the problem of overvoltage or insufficient pressure, and Reduce production difficulty and cost through integrated molding.

Benefits of technology

Improves reliability of electronic device connections, avoids connector damage, reduces production costs, and enhances structural strength and consistency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses electronic equipment, relates to the technical field of electronic equipment, and is used for solving the technical problem of unreliable connection of a connector in the electronic equipment. The electronic equipment comprises a circuit board, an electronic device and a shell, the electronic device is connected to one side plate face of the circuit board, the shell comprises a shell body and an elastic arm which are connected, a deformation space is formed between the elastic arm and the shell body, the circuit board is installed in the electronic equipment, and the elastic arm elastically abuts against the electronic device. The elastic arm provided by the utility model has an elastic deformation space on the shell, so that the elastic arm has elasticity. When the shell and the circuit board are installed in the electronic equipment, the elastic arm on the shell can be utilized to elastically abut against the electronic device on the circuit board, so that the elastic arm can spontaneously apply pressure to the electronic device, the problem that the electronic device is overpressed or not tightly pressed is avoided, and the connection reliability of the electronic device is further improved.
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Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to an electronic equipment. Background Art

[0002] Electronic devices are usually equipped with various types of connectors, and the reliability of the connection has become the primary prerequisite for the normal operation of the connector. In the related art, in order to ensure the normal operation of the connector, local thickening, adding foam or steel sheets are usually used in electronic devices to apply pressure to the connector to avoid the problem of connector loosening and causing functional failure. However, these methods are either prone to overpressure and damage to the connector, or are prone to the problem of the connector not being pressed tightly, or require additional materials, increasing the cost of the electronic equipment. Utility Model Content

[0003] The present application discloses an electronic device, which is used to solve the technical problem of unreliable connector connection in the electronic device.

[0004] In order to achieve the above objectives, this application adopts the following technical solutions:

[0005] The first aspect of the present application discloses an electronic device, comprising:

[0006] Circuit boards;

[0007] An electronic device connected to one side of the circuit board; and

[0008] The shell comprises a shell body and an elastic arm connected to each other, wherein a deformation space is provided between the elastic arm and the shell body;

[0009] Wherein, the circuit board is installed in the electronic device, and the elastic arm elastically abuts against the electronic device.

[0010] In some embodiments, the elastic arm has a protrusion facing the electronic device;

[0011] The protrusion abuts against the electronic component.

[0012] In some embodiments, the shell body has a hollow area, and the elastic arm is disposed in the hollow area;

[0013] The elastic arm includes a first connecting portion, an abutting portion and a second connecting portion, the first connecting portion and the second connecting portion are respectively connected to the shell body, and the abutting portion protrudes toward the electronic device to form the protruding portion.

[0014] In some embodiments, the area of ​​the abutting portion is the same as the vertical projection area of ​​the electronic device on the circuit board.

[0015] In some embodiments, the abutting portion has a first surface facing a side of the electronic device;

[0016] The first surface is a plane.

[0017] In some embodiments, the electronic device has a second surface facing away from the circuit board;

[0018] The first surface is located between the second surface and the circuit board.

[0019] In some embodiments, the distance between the first surface and the second surface is 0.1 mm-0.2 mm.

[0020] In some embodiments, the electronic device includes a BTB connector, the BTB connector includes a male buckle and a female buckle, the female buckle is electrically connected to the circuit board, and the male buckle is engaged with and electrically connected to the female buckle;

[0021] The elastic arm abuts against the male buckle.

[0022] In some embodiments, the elastic arm and the shell body are integrally formed into the shell, and the shell includes an internal shell or an external shell;

[0023] The circuit board is connected to the built-in shell; or, the circuit board is connected to the external shell.

[0024] In some embodiments, the electronic device includes a heat sink connected to the circuit board;

[0025] The elastic arm abuts against the heat sink.

[0026] Compared with the prior art, the beneficial effects of this application are:

[0027] The elastic arm of the present application is connected to the shell body, and a deformation space is set between the elastic arm and the shell body, so that the elastic arm has a space for elastic deformation on the shell, so that the elastic arm has elasticity. When the shell and the circuit board are installed in the electronic equipment, the elastic arm on the shell can be used to elastically abut the electronic device on the circuit board, so that the elastic arm can spontaneously apply pressure to the electronic device, avoiding the problem of overpressure or insufficient pressure on the electronic device, thereby improving the reliability of the connection of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 is a schematic diagram of the three-dimensional structure of an electronic device provided in an embodiment of the present application;

[0030] Figure 2 yes Figure 1 Schematic diagram of the exploded structure of the electronic equipment;

[0031] Figure 3 yes Figure 2 A schematic diagram of the three-dimensional structure of a circuit board of an electronic device;

[0032] Figure 4 yes Figure 2 A schematic diagram of the three-dimensional structure of the housing of the electronic device;

[0033] Figure 5 yes Figure 4 A schematic diagram of the cross-sectional structure of the AA section of the middle shell;

[0034] Figure 6 is a schematic cross-sectional structural diagram of the housing provided in an embodiment of the present application before the BTB connector is pressed;

[0035] Figure 7 yes Figure 6 A schematic diagram of the position of the first surface of the abutment portion of the middle elastic arm before and after abutment;

[0036] Figure 8 is a schematic cross-sectional structural diagram of the housing provided in an embodiment of the present application after the BTB connector is pressed;

[0037] Fig. 9 It is a schematic diagram of the cross-sectional structure of the shell provided in an embodiment of the present application after the heat sink is pressed.

[0038] Description of main reference numerals:

[0039] 01-electronic device; 100-display screen; 200-middle frame; 300-back cover; 400-circuit board; 500-battery; 600-electronic device; 600a-second surface; 610-female buckle; 620-male buckle; 630-steel sheet; 700-wire; 800-flexible circuit board; 910-heat sink; 920-chip;

[0040] 10 shell; 11 shell body; 12 elastic arm; 12a first surface; 121 first connecting portion; 122 abutting portion; 123 second connecting portion; 13 deformation space. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] In this application, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0044] The technical solution of the present application will be further described below in conjunction with specific embodiments and drawings.

[0045] The present application embodiment provides an electronic device 01. Figure 1 As shown, the electronic device 01 can be a mobile phone, a tablet computer, an e-reader, a laptop computer, a desktop computer, a server, a wearable device, a drone, or other electronic products. The present application embodiment does not impose any special restrictions on the specific type of the electronic device 01. In order to better illustrate the content of the present application embodiment, the electronic device 01 is an example of a mobile phone.

[0046] The electronic device 01, such as Figure 1 As shown, the electronic device 01 may include a display screen 100, a middle frame 200, and a back cover 300. The display screen 100 may be connected to one side of the middle frame 200 by pasting, and the back cover 300 may be connected to the side of the middle frame 200 away from the display screen 100 by screwing, welding, bonding, or snapping. The embodiment of the present application does not impose any special restrictions on the connection method between the components of the electronic device 01.

[0047] Among them, Figure 1 As shown, the electronic device 01 may have a length direction, a width direction, and a thickness direction. For the convenience of explanation, the following embodiments will use the X direction as the length direction of the electronic device 01, the Y direction as the width direction of the electronic device 01, and the Z direction as the thickness direction of the electronic device 01. Taking a mobile phone as an example, the outline of the mobile phone may be a rectangle, the direction where the long side is located may be the length direction of the mobile phone, and the direction where the short side is located may be the width direction of the mobile phone.

[0048] In some embodiments, Figure 2 As shown, the electronic device 01 may further include a circuit board 400 and a battery 500. The circuit board 400 may be electrically connected to a plurality of chips, memories, antennas and other devices, and the battery 500 may be electrically connected to the circuit board 400 to provide the power required by the circuit board 400. According to the structural design of different electronic devices 01, the circuit board 400 and the battery 500 may be installed between the middle frame 200 and the back cover 300, or between the middle frame 200 and the display screen 100. The embodiment of the present application does not impose any special restrictions on the installation positions of the circuit board 400 and the battery 500.

[0049] In more embodiments, Figure 3 As shown, the electronic device 01 may further include an electronic device 600, a wire 700, and a flexible printed circuit (FPC) 800. The electronic device 600 may be a board-to-board (BTB) connector or other types of connectors. The present embodiment of the application takes a BTB connector as an example for illustration. The BTB connector may include a female buckle 610 and a male buckle 620. The female buckle 610 may be electrically connected to a side surface of the circuit board 400, and the female buckle 610 may be electrically connected to the electronic device 600 such as the chip or memory through a wire 700. The electronic device 600 and the female buckle 610 are located on the same side surface of the circuit board 400. The male buckle 620 may be electrically connected to the FPC 800, and the male buckle 620 may realize the electrical connection between the circuit board 400 and the FPC 800 by buckling with the female buckle 610, so as to realize the circuit functions related to the electronic device 01. The present embodiment of the application does not impose any special restrictions on the specific circuit functions of the electronic device 01.

[0050] However, during the use of the electronic device 01, if Figure 3 As shown, the male buckle 620 of the BTB connector is easily loosened from the female buckle 610 along the Z direction, thereby causing the BTB connector to fail in function. In order to ensure the reliability of the connection between the male buckle 620 and the female buckle 610 of the BTB connector, as shown in FIG. Figure 4As shown, the embodiment of the present application further provides a housing 10. The housing 10 may be a built-in housing or an external housing of the electronic device 01, and only a part of the housing 10 is shown in the figure.

[0051] The built-in housing is the housing 10 that is not visible from the outside of the electronic device 01. For example, the housing 10 may be an inner housing for supporting a circuit board in a laptop computer, a partition for separating the internal space in a server, a middle plate in a mobile phone middle frame, and other housings 10. The external housing is the housing 10 that can be seen from the outside of the electronic device 01. For example, the housing 10 may also be a battery cover of a mobile phone, a shell of a tablet computer, a bottom shell of a laptop computer, and other housings 10. The embodiment of the present application does not impose any special restrictions on the specific position of the housing 10 on the electronic device 01.

[0052] In addition, the circuit board 400 can be connected to the internal housing or the external housing by screwing, riveting, clamping, etc. For example, Figure 2 As shown, the circuit board 400 can be connected to the middle frame 200 by screws, and the side of the circuit board 400 equipped with the electronic device 600 can face the middle frame 200. In this case, the middle frame 200 is the above-mentioned housing 10. In other embodiments, the circuit board 400 can also be connected to the back cover 300 by screws, and the side of the circuit board 400 equipped with the electronic device 600 can face the back cover 300. In this case, the back cover 300 is the above-mentioned housing 10.

[0053] Of course, the housing 10 may also be a split structure connected by screwing, riveting, clamping, etc., and the circuit board 400 may be installed and fixed in the housing 10 to maintain a relatively fixed positional relationship between the circuit board 400 and the housing 10. In addition, when a shielding cover is provided outside the electronic device 600 on the circuit board 400, the shielding cover may also serve as the housing 10. The embodiment of the present application does not impose any special restrictions on the specific structural form of the housing 10.

[0054] The following will take the middle frame 200 as an example of the housing 10 for detailed description. Figure 4 As shown, it is a part of the shell 10 in the middle frame 200. The shell 10 may include a shell body 11 and an elastic arm 12. A hollow area may be provided on the shell body 11 (a hollow area when the elastic arm 12 is not provided), the elastic arm 12 may be provided in the hollow area, and deformation spaces 13 (the space remaining after the elastic arm 12 occupies the hollow area) may be provided on both sides of the elastic arm 12 and the shell body 11. In the following embodiments, for the convenience of explanation, hollow parts such as slots, holes, and hollows are marked with arrow-marked lines, and the remaining parts are marked with arrow-free marking lines. The same marking method will be used in the drawings of the following embodiments, and will not be repeated.

[0055] Specifically, if Figure 5 As shown, the elastic arm 12 can be set to a structure of a spring sheet with both ends fixed. For example, the elastic arm 12 may include a first connection portion 121, an abutment portion 122 and a second connection portion 123. The first connection portion 121 and the second connection portion 123 may be connected to the shell body 11 respectively, and the connection method may be screw connection, riveting, clamping or welding, etc. The embodiment of the present application does not impose any special restrictions on the specific method of connection between the first connection portion 121 and the second connection portion 123 and the shell body 11 respectively. The abutment portion 122 may protrude toward the side of the shell body 11 close to the circuit board 400 to form a protrusion protruding from the plane where the shell body 11 is located. Among them, the position where the abutment portion 122 is set on the shell 10 corresponds to the position where the BTB connector is set on the circuit board 400. That is, when the shell 10 is installed on the electronic device 01, the abutment portion 122 is located above the BTB connector.

[0056] Of course, the elastic arm 12 can also be set to a structural form of a spring sheet fixed at one end. In this case, the elastic arm 12 can include a first connecting portion 121 and an abutting portion 122, and the first connecting portion 121 can be connected to the shell body 11, thereby canceling the setting of the second connecting portion 123. The embodiment of the present application does not impose special restrictions on the specific structure of the elastic arm 12. In addition, when the height of the BTB connector protruding on the circuit board 400 is large, the abutting portion 122 can also be set in the plane where the shell body 11 is located. Even, the abutting portion 122 can also be set to a structural form that protrudes toward the side of the shell body 11 away from the circuit board 400. When the housing 10 is connected to the circuit board 400, the abutting portion 122 can also abut against the BTB connector protruding on the circuit board 400. The embodiment of the present application does not impose special restrictions on whether the abutting portion 122 protrudes relative to the shell body 11, which side of the shell body 11 the abutting portion 122 protrudes relative to, and the specific height of the abutting portion 122 protruding relative to the shell body 11.

[0057] In addition, if Figure 6 As shown, the abutment portion 122 may have a first surface 12a facing the BTB connector, the BTB connector may have a second surface 600a facing away from the circuit board 400, and the first surface 12a may be arranged opposite to the second surface 600a. The first surface 12a may be a plane, so that the pressure between the abutment portion 122 and the BTB connector can be reduced. At the same time, the vertical projection area of ​​the abutment portion 122 on the circuit board 400 may be the same as the vertical projection area of ​​the BTB connector on the circuit board 400, so that the extrusion force at each point between the abutment portion 122 and the BTB connector is the same, avoiding uneven force on the BTB connector.

[0058] Of course, the contact portion 122 may be configured to have a corresponding different shape according to the different shapes of the side of the electronic device 600 facing the elastic arm 12. For example, when the side of the male buckle 620 facing the elastic arm 12 is arched, the first surface 12a of the contact portion 122 may also be designed to be an arc shape that matches the second surface 600a of the male buckle 620, so that the contact portion 122 on the elastic arm 12 can apply a uniform extrusion force to the electronic device 600.

[0059] In more embodiments, Figure 7 As shown, in the natural state of the housing 10, the first surface 12a can be located on the second surface 600a ( Figure 6 ) and the circuit board 400 ( Figure 6 That is, the first surface 12a of the abutting portion 122 may be located between the plate surfaces. Figure 7 When the abutting portion 122 abuts against the BTB connector, the abutting portion 122 can be elastically deformed, so that the first surface 12a can be retracted to the position shown by the dotted line in the figure (the position after elastic deformation). Therefore, the pressure of the abutting portion 122 against the BTB connector after abutting can be controlled by designing the position of the first surface 12a before and after the elastic deformation of the abutting portion 122.

[0060] If the initial position of the first surface 12a is set too small, the BTB connector may not be pressed tightly; if the initial position of the first surface 12a is set too large, the BTB connector may be over-pressed. Figure 7 As shown, the distance between the first surface 12a and the second surface 600a of the abutment portion 122 can be set to 0.1mm-0.2mm, that is, the distance S before and after the elastic deformation of the abutment portion 122 (the solid line in the figure is the position of the abutment portion 122 before the elastic deformation, and the dotted line is the position of the abutment portion 122 after the elastic deformation) can be set to 0.1mm-0.2mm, so as to ensure that the abutment portion 122 has reliable pressure on the BTB connector, thereby ensuring the reliability of the BTB connector connection.

[0061] When the circuit board 400 and the housing 10 are installed in the electronic device 01, Figure 8As shown, the shell body 11 can be abutted against the male buckle 620 of the BTB connector through the elastic arm 12 protruding toward the side of the circuit board 400, so that the male buckle 620 and the female buckle 610 are pressed tightly to avoid the problem of loosening between the male buckle 620 and the female buckle 610, thereby improving the reliability of the connection of the BTB connector. Among them, the BTB connector can also include a steel sheet 630, which can be connected to the side of the male buckle 620 facing the elastic arm 12. When the elastic arm 12 abuts against the male buckle 620, the steel sheet 630 can evenly transfer the extrusion force to the male buckle 620, and the steel sheet 630 can also enhance the overall rigidity of the BTB connector, thereby preventing the BTB connector from being crushed.

[0062] For example, the overall thickness of the BTB connector after buckling can be 1.2mm, and the thickness of the shell body 11 can be set to 0.5mm-1mm. The width of the elastic arm 12 along the Y direction can be the same as that of the BTB connector, the length of the elastic arm 12 along the X direction can be 4mm greater than the length of the BTB connector, and the thickness of the elastic arm 12 along the Z direction can be the same as the thickness of the shell body 11. The first surface 12a of the elastic arm 12 can be 0.15mm lower than the second surface 600a of the BTB connector (that is, the above distance S=0.15mm). Among them, the material of the shell 10 can be plastic.

[0063] As mentioned above, since a deformation space 13 is provided between the shell body 11 and the elastic arm 12, the elastic arm 12 can be elastically deformed in the deformation space 13, thereby having elasticity. When the elastic arm 12 abuts against the male buckle 620 of the BTB connector, the elastic arm 12 can spontaneously adjust the extrusion force applied to the male buckle 620 through elastic deformation, thereby realizing the function of elastic abutment, thereby avoiding the problem of overpressure or insufficient pressing on the BTB connector, which not only improves the reliability of the BTB connector connection, but also, due to the elastic deformation ability of the elastic arm 12, can also expand the allowable error during the manufacture of the elastic arm 12, thereby reducing the process difficulty of manufacturing the electronic device 01.

[0064] In addition, the deformation space 13 is set on both sides of the elastic arm 12, and the production mold can be allowed to pass through, so that the shell body 11 and the elastic arm 12 can form an integrated structure through one-time injection molding. In this way, not only the difficulty of producing the shell 10 is reduced, but also the function of pressing the BTB connector can be realized without adding additional materials, thereby reducing the production cost of the electronic device 01. At the same time, the same material is used between the integrally formed shell body 11 and the elastic arm 12, which can also improve the consistency of the shell 10 and enhance the structural strength of the shell 10.

[0065] The above embodiment is described in detail by taking the electronic device 600 as a BTB connector as an example. The housing 10 provided in the embodiment of the present application can be used not only to press the BTB connector, but also to press the heat sink 910. For example, Fig. 9 As shown, the electronic device 01 may further include a heat sink 910 and a chip 920. The chip 920 may be electrically connected to a side surface of the circuit board 400, and the heat sink 910 may be stacked on a side of the chip 920 away from the circuit board 400. The heat sink 910 may be a fin-type heat sink or a fan-type heat sink. The embodiment of the present application does not impose any special restrictions on the specific type of the heat sink 910.

[0066] Similarly, when the circuit board 400 is connected to the housing 10, Fig. 9 As shown, the shell body 11 can also abut against the heat sink 910 through the elastic arm 12 protruding toward the side of the circuit board 400, thereby pressing the heat sink 910 against the chip 920 to ensure a reliable connection between the heat sink 910 and the chip 920, thereby improving the heat dissipation efficiency of the heat sink 910 to the chip 920.

[0067] In addition to being used to compress the BTB connector and the heat sink 910, the housing 10 provided in the embodiment of the present application can also be used to compress the electronic devices 600 such as the camera module, the battery 500, and the motor. The embodiment of the present application does not impose any special restrictions on the specific type of the electronic device 600. By using the housing 10 provided in the embodiment of the present application to compress the electronic device 600, the extrusion force applied to the electronic device 600 can be spontaneously adjusted by the elastic deformation of the elastic arm 12, so that the elastic arm 12 and the electronic device 600 are in elastic contact, avoiding the problem of overpressure or loose compression on the electronic device 600, which not only improves the reliability of the connection of the electronic device 600, but also effectively protects the electronic device 600 and prevents the electronic device 600 from being damaged by overpressure. In addition, the shell body 11 and the elastic arm 12 are set as an integrally formed housing 10 structure, and no additional materials are required, which is conducive to reducing the production cost of the electronic device 01.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electronic device, characterized in that: include: Circuit boards; An electronic device connected to one side of the circuit board; as well as, The shell comprises a shell body and an elastic arm connected to each other, wherein a deformation space is provided between the elastic arm and the shell body; Wherein, the circuit board is installed in the electronic device, and the elastic arm elastically abuts against the electronic device.

2. The electronic device according to claim 1, characterized in that: The elastic arm has a protrusion facing the electronic device; The protrusion abuts against the electronic component.

3. The electronic device according to claim 2, characterized in that: The shell body has a hollow area, and the elastic arm is arranged in the hollow area; The elastic arm includes a first connecting portion, an abutting portion and a second connecting portion, the first connecting portion and the second connecting portion are respectively connected to the shell body, and the abutting portion protrudes toward the electronic device to form the protruding portion.

4. The electronic device according to claim 3, characterized in that: The area of ​​the abutting portion is the same as the vertical projection area of ​​the electronic component on the circuit board.

5. The electronic device according to claim 3, characterized in that: The abutting portion has a first surface facing one side of the electronic device; The first surface is a plane.

6. The electronic device according to claim 5, characterized in that: The electronic device has a second surface facing away from the circuit board; The first surface is located between the second surface and the circuit board.

7. The electronic device according to claim 6, characterized in that: The distance between the first surface and the second surface is 0.1 mm-0.2 mm.

8. The electronic device according to any one of claims 1 to 7, characterized in that: The electronic device comprises a BTB connector, the BTB connector comprises a male buckle and a female buckle, the female buckle is electrically connected to the circuit board, and the male buckle is buckled and electrically connected to the female buckle; The elastic arm abuts against the male buckle.

9. The electronic device according to any one of claims 1 to 7, characterized in that: The elastic arm and the shell body are integrally formed into the shell, and the shell includes a built-in shell or an external shell; The circuit board is connected to the built-in shell; or, the circuit board is connected to the external shell.

10. The electronic device according to any one of claims 1 to 7, characterized in that: The electronic device comprises a heat sink, and the heat sink is connected to the circuit board; The elastic arm abuts against the heat sink.