Grounding elastic sheet and electronic equipment

Abstract

The utility model relates to the technical field of circuit board assembly, in particular to a grounding elastic sheet and electronic equipment. The grounding elastic piece is used for electrically connecting the conductive shell with the circuit board, the conductive shell comprises a connecting seat, and buckling blocks are arranged on the two opposite sides of the connecting seat in the first direction; the grounding elastic sheet comprises a connecting piece and a first clamping structure; the connecting piece is connected with a circuit board; the first clamping structure comprises two first elastic arms, the first ends of the first elastic arms are connected to the connecting piece, the two first elastic arms clamp the connecting base in the first direction, clamping holes are formed in the first elastic arms, and the buckling blocks are at least partially arranged in the clamping holes. Through the above mode, the grounding elastic sheet not only can electrically connect the circuit board with the conductive housing, but also can install the circuit board on the conductive housing, thereby reducing the use of screws, and improving the problem that the miniaturization of the conductive housing is not facilitated when the circuit board is installed on the conductive housing through the screws. And the grounding elastic sheet is in buckled connection with the connecting seat, so that the dismounting efficiency of the circuit board is improved.

Description

Technical Field

[0001] This application relates to the field of circuit board assembly technology, and in particular to a grounding spring and electronic device. Background Technology

[0002] Circuit boards serve as the support for electronic components and also as the carrier of electrical connections. Electronic components function correctly after being mounted on the circuit board. When used in electronic devices, circuit boards need to be electrically connected to the conductive casing of the electronic device to achieve grounding, thereby preventing static electricity and improving stability.

[0003] In related technologies, circuit boards are typically mounted to a conductive housing using screws, which can also electrically connect the circuit board to the conductive housing. Alternatively, a grounding spring can be used to connect the circuit board to the conductive housing. However, when mounting the circuit board to the conductive housing with screws, the screw heads protrude from the circuit board, which is detrimental to the miniaturization of the conductive housing. Furthermore, removing and installing the circuit board requires first removing the screws, making the process time-consuming and resulting in low efficiency. Utility Model Content

[0004] The embodiments of this application aim to provide a grounding spring and an electronic device, so as to at least improve the problem that screws are not conducive to the miniaturization of conductive housings when mounting circuit boards to conductive housings, as well as the problem of low circuit board assembly and disassembly efficiency.

[0005] In order to solve the above-mentioned technical problems, the embodiments of this application adopt the following technical solutions:

[0006] In a first aspect, embodiments of this application provide a grounding spring for electrically connecting a conductive housing to a circuit board. The conductive housing includes a connecting seat, and the connecting seat has fastening blocks on opposite sides along a first direction. The grounding spring includes a connector and a first clamping structure. The connector is used to connect to the circuit board. The first clamping structure includes two first elastic arms, the first end of which is connected to the connector. The two first elastic arms clamp the connecting seat along the first direction. The first elastic arms have locking holes, and the fastening blocks are at least partially disposed in the locking holes.

[0007] In some embodiments, the grounding spring includes a second clamping structure, the second clamping structure including two second elastic arms, the first end of the second elastic arms being connected to the connector, and the two second elastic arms clamping the connector along the first direction.

[0008] In some embodiments, the grounding spring includes at least two second clamping structures, and along a second direction, the first clamping structure is located between the two second clamping structures; wherein, the second direction is perpendicular to the first direction.

[0009] In some embodiments, the second end of the first elastic arm is provided with a first bending portion, which bends toward a direction away from the connecting seat.

[0010] In some embodiments, the second end of the second elastic arm is provided with a second bending portion, which bends toward a direction away from the connecting seat.

[0011] In some embodiments, the connector is provided with a first opening for the disassembly fixture to extend between the two first elastic arms; the first elastic arms are provided with force-receiving portions, and along the direction of the force-receiving portions toward the first opening, the force-receiving portions of the two first elastic arms gradually move away from each other, and the force-receiving portions are used to contact the disassembly fixture when the disassembly fixture moves toward the position between the second ends of the two first elastic arms, and drive the second ends of the two first elastic arms away from each other under the reaction force of the disassembly fixture.

[0012] In some embodiments, the conductive housing has a second opening for the disassembly fixture to extend between the two first elastic arms; the second end of the first elastic arm has a first bend, which bends in a direction away from the connector; the first bend is used to contact the disassembly fixture when the disassembly fixture moves toward the connector and drive the second ends of the two first elastic arms away from each other under the reaction force of the disassembly fixture.

[0013] In some embodiments, the circuit board is provided with at least two positioning holes, and the connector is provided with at least two positioning posts, with the at least two positioning posts respectively passing through the two positioning holes.

[0014] Secondly, embodiments of this application provide an electronic device, the electronic device including a conductive housing, a circuit board and a grounding spring as described in any of the above claims; the conductive housing includes a connecting base, and the connecting base is provided with fastening blocks on opposite sides along the first direction.

[0015] In some embodiments, the fastening block has a supporting surface on the side opposite to the connector, and the two fastening blocks have a first guide surface on the side opposite to each other. Along the direction of the fastening block toward the connector, the first guide surfaces of the two fastening blocks gradually approach each other. During the process of installing the grounding spring on the connector, the first elastic arm is used to slide along the first guide surface so that the second ends of the two first elastic arms move away from each other. The first elastic arm is also used to restore its deformation when leaving the first guide surface so that the inner wall of the card hole abuts against the supporting surface.

[0016] In some embodiments, the connector is provided with second guide surfaces on opposite sides along the first direction, and the two second guide surfaces gradually approach each other along the direction of the fastening block toward the connector; during the process of the grounding spring being installed on the connector, the first elastic arm is used to slide along the second guide surface so that the second ends of the two first elastic arms move away from each other.

[0017] The grounding spring and electronic device of this application embodiment are snap-fitted together with the connector of the conductive housing. This not only allows for electrical connection between the circuit board and the conductive housing, but also enables the circuit board to be mounted on the conductive housing. This reduces the need for screws, or even eliminates the need for screws, thus addressing the issue of screws hindering the miniaturization of the conductive housing. Furthermore, the snap-fit ​​connection between the grounding spring and the connector facilitates the assembly and disassembly of the grounding spring and the connector, improving the efficiency of circuit board assembly and disassembly.

[0018] The above description is merely an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0019] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0020] Figure 1 This is a plan view of an electronic device according to an embodiment of this application;

[0021] Figure 2 This is an exploded view of an electronic device according to an embodiment of this application;

[0022] Figure 3 yes Figure 1 A three-dimensional schematic diagram of the conductive casing and grounding spring of an electronic device;

[0023] Figure 4 yes Figure 1 A three-dimensional schematic diagram of the grounding spring of an electronic device;

[0024] Figure 5 yes Figure 1 A three-dimensional sectional view of an electronic device.

[0025] The reference numerals in the detailed embodiments are as follows:

[0026] 100. Electronic devices;

[0027] 1. Grounding spring;

[0028] 11. Connector; 111. First opening; 112. Positioning post; 113. Third bend;

[0029] 12. First clamping structure; 121. First elastic arm; 1211. Locking hole; 1212. First bending part; 1213. Force-receiving part;

[0030] 13. Second clamping structure; 131. Second elastic arm; 1311. Second bending part;

[0031] 2. Conductive housing; 21. Connecting seat; 211. Fastening block; 2111. Supporting surface; 2112. First guide surface; 212. Fourth opening; 213. Second guide surface; 22. Second opening;

[0032] 3. Circuit board; 31. Third opening; 32. Positioning hole;

[0033] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0034] To facilitate understanding of this application, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a more detailed account. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0036] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0037] In the description of the embodiments of this application, the terms "first," "second," etc., are used to define components merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0038] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0039] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0040] Firstly, please refer to Figure 1 This application provides a grounding spring 1 for electrically connecting a conductive shell 2 to a circuit board 3. The conductive shell 2 is conductive and can be made of conductive metal, such as iron, copper, aluminum, stainless steel, or other conductive materials, such as carbon fiber, conductive polymer materials, conductive ceramic materials, etc.

[0041] To facilitate the description of the structural features and beneficial effects of the grounding spring 1, the structural features of the conductive housing 2 and the circuit board 3 will be explained first. Please refer to... Figures 1 to 3The conductive housing 2 includes a connecting base 21, and fastening blocks 211 are provided on opposite sides of the connecting base 21 along the first direction X. The connecting base 21 can be cuboid in shape, and the fastening blocks 211 can be triangular prism, cuboid, etc. The structural features of the conductive housing 2 are only used to illustrate the structural features and beneficial effects of the grounding spring 1, and are not intended to limit the grounding spring 1 of this application embodiment. The grounding spring 1 of this application embodiment can also be used in other devices with a similar structure to the connecting base 21, as long as the device can be detachably connected to the grounding spring 1.

[0042] For ease of description, please refer to Figure 1 and Figure 2 Using the connector 21 as a reference, the width, length, and height directions of the connector 21 are defined as the first direction X, the second direction Y, and the third direction Z, respectively. It is understood that the first direction X, the second direction Y, and the third direction Z are mutually perpendicular. The connector 21 protrudes beyond other parts of the conductive housing 2 along the third direction Z to facilitate connection with the grounding spring 1.

[0043] It should be noted that, in order to facilitate a direct observation of the connection relationship between the conductive outer shell 2 and the circuit board 3 and the grounding spring 1, Figures 1 to 4 The conductive outer shell 2 shown is only a part of one side wall of the actual conductive outer shell 2. The conductive outer shell 2 can be box-shaped, cylindrical, etc.

[0044] In some other embodiments, the grounding spring 1 is used only to electrically connect the connector 21 to the circuit board 3. Exemplarily, the connector 21 is conductive, the conductive housing 2 is not insulating, and the connector 21 is grounded by extending a wire outside the conductive housing 2.

[0045] Please see Figures 1 to 3 The circuit board 3 can be flat, and the circuit board 3 and the conductive shell 2 are arranged along the third direction Z.

[0046] For the aforementioned grounding spring 1, please refer to Figures 2 to 4 The grounding spring 1 includes a connector 11 and a first clamping structure 12. The connector 11 is used to connect to the circuit board 3. The first clamping structure 12 includes two first elastic arms 121, the first end of which is connected to the connector 11. The two first elastic arms 121 clamp the connector seat 21 along a first direction X. The connection between the connector 11 and the circuit board 3 includes structural connection and electrical connection. Structural connection refers to the direct or indirect fixed connection between the connector 11 and the circuit board 3, such as bonding the connector 11 to the substrate of the circuit board 3 or welding the connector 11 to a soldering target on the circuit board 3, thereby fixing the connector 11 relative to the circuit board 3. Electrical connection refers to the electrical connection between the connector 11 and the circuit board 3, such as welding the connector 11 to a soldering target on the circuit board 3, allowing current to be conducted between the connector 11 and the circuit board 3.

[0047] For example, the connector 11 is sheet-shaped and is attached to the circuit board 3 for stable connection. The connector 11 and the circuit board 3 can be connected by soldering, bonding, screwing, etc. The connector 11 is electrically connected to the grounding solder target on the circuit board 3 for electrical connection. Two first elastic arms 121 are spaced apart along a first direction X, and the second end of the first elastic arms 121 extends in the opposite direction to a third direction Z. When no external force is applied, the distance between the two first elastic arms 121 along the first direction X is less than the width of the connector 21, so that the two first elastic arms 121 can clamp the connector 21.

[0048] Please refer to the following: Figures 3 to 5 The first elastic arm 121 has a locking hole 1211, and the fastening block 211 is at least partially disposed in the locking hole 1211. Exemplarily, the fastening block 211 extends at least partially into the locking hole 1211 along the first direction X, thereby preventing the first elastic arm 121 from moving relative to the connecting seat 21 in a direction perpendicular to the first direction X, thus securing the grounding spring 1 to the connecting seat 21 of the conductive housing 2. When the second ends of the two first elastic arms 121 are driven away from each other by external force, the fastening block 211 can disengage from the locking hole 1211, and the grounding spring 1 can then disengage from the connecting seat 21 along the second direction Y and the third direction Z. When installing the grounding spring 1 onto the connecting seat 21, firstly, the second ends of the two first elastic arms 121 are driven away from each other by external force, then the grounding spring 1 is moved until the two locking holes 1211 are located on opposite sides of the two fastening blocks 211 along the first direction X, and finally the two first elastic arms 121 are released, thus installing the grounding spring 1 onto the connecting seat 21. Optionally, the locking hole 1211 is square. Optionally, the locking hole 1211 is disposed between the first end and the second end of the first elastic arm 121.

[0049] It is understandable that, since both the grounding spring 1 and the conductive housing 2 are conductive, the grounding spring 1 simultaneously connects the circuit board 3 to the conductive housing 2. This method reduces the number of screws needed to mount the circuit board 3 to the conductive housing 2, or even eliminates the need for screws altogether, thus addressing the issue of screws hindering the miniaturization of the conductive housing 2. Furthermore, the snap-fit ​​connection between the grounding spring 1 and the connecting seat 21 of the conductive housing 2 facilitates the assembly and disassembly of the grounding spring 1 and the connecting seat 21, improving the efficiency of circuit board 3 assembly and disassembly.

[0050] In some embodiments, please refer to Figures 2 to 4The grounding spring 1 includes a second clamping structure 13, which includes two second elastic arms 131. The first end of each second elastic arm 131 is connected to the connector 11, and the two second elastic arms 131 clamp the connector 21 along a first direction X. The structure of the second elastic arms 131 is similar to that of the first elastic arm 121. By clamping the connector 21 with the two second elastic arms 131, the stability of the connection between the grounding spring 1 and the connector 21 can be further improved.

[0051] For further information, please refer to [link / reference]. Figures 2 to 4 The grounding spring 1 includes at least two second clamping structures 13, with a first clamping structure 12 located between the two second clamping structures 13 along the second direction Y. That is, at least one second clamping structure 13 is provided on each side of the first clamping structure 12 along the second direction Y, which can further improve the stability of the connection between the grounding spring 1 and the connecting seat 21. Furthermore, when the first clamping structure 12 is not clamping the connecting seat 21, for example, when the second ends of the two first elastic arms 121 are driven apart by external force to install the grounding spring 1 onto the connecting seat 21, the two second clamping structures 13 on both sides of the first clamping structure 12 can assist in clamping the connecting seat 21, facilitating the correct installation of the grounding spring 1 onto the connecting seat 21.

[0052] In some embodiments, please refer to Figures 2 to 4 The second end of the first elastic arm 121 is provided with a first bent portion 1212, which bends in a direction away from the connecting seat 21. Since the distance between the two first elastic arms 121 is less than the width of the connecting seat 21 when no external force is applied, when the grounding spring 1 is moved parallel to the third third direction Z and approaches the connecting seat 21, the second ends of the two first elastic arms 121 will contact the side of the connecting seat 21 facing the third third direction Z. It is necessary to use external force to drive the second ends of the two first elastic arms 121 away from each other, and release the first elastic arms 121 when the connecting seat 21 is at least partially located between the two first elastic arms 121, so that the two first elastic arms 121 can correctly clamp the connecting seat 21. In this embodiment, the second end of the first elastic arm 121 is provided with a first bending portion 1212. The first bending portion 1212 bends in a direction away from the connecting seat 21. The first elastic arm 121 can then contact the edge of the connecting seat 21 facing the third direction Z through the first bending portion 1212. The second ends of the two first elastic arms 121 move away from each other under the action of the first bending portion 1212, thus eliminating the need for external force to drive the second ends of the two first elastic arms 121 away from each other, facilitating the clamping structure 12 to clamp onto the connecting seat 21. It is understood that the maximum distance between the first bending portions 1212 of the two first elastic arms 121 along the first direction X is greater than the width of the connecting seat 21 along the first direction X.

[0053] In some embodiments, please refer to Figures 2 to 4 The second end of the second elastic arm 131 is provided with a second bending portion 1311, which bends in a direction away from the connecting seat 21. Similar to the principle of the first bending portion 1212, by providing the second bending portion 1311, it is not necessary to use external force to drive the second ends of the two second elastic arms 131 away from each other, which facilitates the second clamping structure 13 to clamp the connecting seat 21.

[0054] In some embodiments, the grounding spring 1 is formed by stamping and bending a metal sheet, which helps to reduce the production cost of the grounding spring 1. Optionally, the grounding spring 1 is made of phosphor bronze, stainless steel, or the like.

[0055] It should be noted that the grounding spring 1 is located between the circuit board 3 and the conductive housing 2. When installing and removing the grounding spring 1 from the connector 21, it is difficult to use external force to drive the second ends of the two first elastic arms 121 away from each other. To improve this problem, the embodiments of this application propose two solutions.

[0056] Option 1: Please refer to Figures 3 to 5 The connector 11 is provided with a first opening 111, which is used for the disassembly fixture to extend between the two first elastic arms 121. The first elastic arm 121 is provided with a force-receiving part 1213. Along the direction of the force-receiving part 1213 toward the first opening 111, the force-receiving parts 1213 of the two first elastic arms 121 gradually move away from each other. The force-receiving part 1213 is used to contact the disassembly fixture when the disassembly fixture moves toward the position between the second ends of the two first elastic arms 121 and to drive the second ends of the two first elastic arms 121 away from each other under the reaction force of the disassembly fixture.

[0057] For example, the disassembly fixture is a square or round rod. The maximum distance between the force-bearing portions 1213 of the two first elastic arms 121 along the first direction X is greater than the width of the disassembly fixture along the first direction X, and the minimum distance between the force-bearing portions 1213 of the two first elastic arms 121 along the first direction X is less than the width of the disassembly fixture along the first direction X. Thus, when the disassembly fixture simultaneously contacts the two force-bearing portions 1213 and moves toward a position between the second ends of the two first elastic arms 121, the second ends of the two first elastic arms 121 can be driven away from each other, so as to disassemble the grounding spring 1 from the connecting seat 21, and also to install the grounding spring 1 onto the connecting seat 21.

[0058] Understandably, please refer to Figure 2 and Figure 5The circuit board 3 has a third opening 31 corresponding to the first opening 111. Along the third direction Z, the projection of the first opening 111 and the third opening 31 at least partially overlap. The disassembly fixture can be inserted from the side of the circuit board 3 away from the grounding spring 1 through the third opening 31 and the first opening 111 into the space between the two first elastic arms 121.

[0059] Because the connector 11 has a first opening 111, the bending strength of the connector 11 is reduced. To improve this problem, please refer to [link / reference needed]. Figures 2 to 4 The connector 11 is provided with a plurality of third bends 113, which are adjacent to the first opening 111 and arranged around the first opening 111, thereby improving the bending strength of the connector 11.

[0060] Option 2: Please refer to Figure 4 and Figure 5 The conductive housing 2 has a second opening 22 for the disassembly fixture to extend between the two first elastic arms 121. The second end of each first elastic arm 121 has a first bent portion 1212, which bends away from the connecting seat 21. The first bent portion 1212 contacts the disassembly fixture as it moves toward the connector 11 and, under the reaction force of the disassembly fixture, drives the second ends of the two first elastic arms 121 away from each other. It can be understood that along the direction of the first bent portion 1212 toward the second opening 22, the first bent portions 1212 of the two first elastic arms 121 gradually move away from each other.

[0061] For example, the disassembly fixture is a square or round rod. The maximum distance between the first bent portions 1212 of the two first elastic arms 121 along the first direction X is greater than the width of the disassembly fixture along the first direction X, and the minimum distance between the first bent portions 1212 of the two first elastic arms 121 along the first direction X is less than the width of the disassembly fixture along the first direction X. Thus, when the disassembly fixture simultaneously contacts the two first bent portions 1212 and moves toward the connector 11, it can drive the second ends of the two first elastic arms 121 away from each other, thereby enabling the grounding spring 1 to be disassembled and assembled onto the connector 21.

[0062] Understandably, please refer to Figure 2 The connecting seat 21 has a fourth opening 212 corresponding to the second opening 22. Along the third direction Z, the projection of the second opening 22 and the fourth opening 212 at least partially overlap. The disassembly fixture can be inserted from the side of the conductive housing 2 away from the grounding spring 1 through the second opening 22 and the fourth opening 212 into the space between the two first elastic arms 121.

[0063] It is understandable that Option 1 and Option 2 do not conflict with each other and can coexist.

[0064] In some embodiments, please refer to Figures 2 to 4 The circuit board 3 has at least two positioning holes 32, and the connector 11 has at least two positioning posts 112, with each positioning post 112 passing through one of the two positioning holes 32. Exemplarily, the positioning post 112 protrudes Z-shapedly from other parts of the connector 11. When the connector 11 is against the circuit board 3, the positioning post 112 passes through the positioning hole 32, facilitating the positioning of the connector 11 relative to the circuit board 3 and improving the accuracy and efficiency of installing the grounding spring 1 onto the circuit board 3. Optionally, the positioning post 112 is formed by stamping and bending the connector 11. Optionally, the positioning post 112 is electrically connected to the grounding target of the circuit board 3, wherein the grounding target can be cylindrical and embedded in the positioning hole 32, with the positioning post 112 passing through and electrically connected to the grounding target. Optionally, there are two positioning posts 112 and two positioning holes 32.

[0065] Secondly, please refer to Figure 1 This application provides an electronic device 100, which includes a conductive housing 2, a circuit board 3, and a grounding spring 1. The electronic device 100 has the structural features and beneficial effects of the grounding spring 1 described above, which will not be repeated here.

[0066] In some embodiments, please refer to Figure 5 The fastening block 211 has a supporting surface 2111 on the side opposite to the connector 11, and the two fastening blocks 211 have a first guide surface 2112 on the side opposite to each other. Along the direction of the fastening block 211 toward the connector 11, the first guide surfaces 2112 of the two fastening blocks 211 gradually approach each other. During the process of installing the grounding spring 1 onto the connector 21, the first elastic arm 121 is used to slide along the first guide surface 2112 so that the second ends of the two first elastic arms 121 move away from each other. The first elastic arm 121 is also used to restore its deformation when it leaves the first guide surface 2112 so that the inner wall of the card hole 1211 abuts against the supporting surface 2111.

[0067] For example, the abutting surface 2111 faces away from the first direction X, the first guide surface 2112 is parallel to the second direction Y, the angle between the normal of the first guide surface 2112 and the first direction X and the third direction Z is an acute angle, and one end of the two first guide surfaces 2112 adjacent to the connector 11 is respectively connected to the two sides of the connector 21 along the first direction X. When the grounding spring 1 is installed on the connecting seat 21, the second ends of the two first elastic arms 121 are first clamped at the edge of the connecting seat 21; then, the connecting piece 11 is moved closer to the connecting seat 21 by external force, and the second ends of the two first elastic arms 121 move away from each other under the action of the two first guide surfaces 2112, so that the second ends of the two first elastic arms 121 do not need to be moved away from each other by external force; finally, when the grounding spring 1 moves to the point where the two locking holes 1211 are respectively located on opposite sides of the two fastening blocks 211 along the first direction X, the second ends of the first elastic arms 121 disengage from the first guide surfaces 2112, the second ends of the two first elastic arms 121 move closer to each other, and the two first elastic arms 121 are sleeved on the fastening blocks 211 through the locking holes 1211. When installing the grounding spring 1 onto the connector 21, it is only necessary to first clamp the second ends of the two first elastic arms 121 onto the edge of the connector 21, and then drive the connector 11 to move closer to the connector 21 by external force. This helps to reduce the difficulty of installing the grounding spring 1 onto the connector 21 and further improves the installation efficiency of the circuit board 3.

[0068] In some embodiments, please refer to Figure 2 and Figure 5 The connecting seat 21 has second guide surfaces 213 on opposite sides along the first direction X. Along the direction of the fastening block 211 toward the connector 11, the two second guide surfaces 213 gradually approach each other. During the process of installing the grounding spring 1 on the connecting seat 21, the first elastic arm 121 is used to slide along the second guide surface 213 so that the second ends of the two first elastic arms 121 move away from each other.

[0069] For example, the second guide surface 213 is parallel to the second direction Y, and the angle between the normal of the second guide surface 213 and the first direction X and the third direction Z is an acute angle. The ends of the two second guide surfaces 213 facing away from the connector 11 are respectively connected to the two sides of the connector 21 along the first direction X. When the two first elastic arms 121 are not subjected to external force, the minimum distance between the two second guide surfaces 213 along the first direction X is less than the distance between the two first elastic arms 121 along the first direction X. Thus, when the two first elastic arms 121 are in contact with the two second guide surfaces 213 respectively, and the connector 11 moves toward the connector 21, the second ends of the two first elastic arms 121 can be driven away from each other, so that the second ends of the two first elastic arms 121 are clamped at the edge of the connector 21. Therefore, there is no need to use external force to drive the second ends of the two first elastic arms 121 to clamp the edge of the connector 21. It is only necessary to use external force to drive the connector 11 to move closer to the connector 21, which helps to reduce the difficulty of installing the grounding spring 1 on the connector 21 and further improves the installation efficiency of the circuit board 3.

[0070] It is understandable that the second guide surface 213, the first bending portion 1212, and the second bending portion 1311 can coexist. When the second guide surface 213 and the first bending portion 1212 coexist, it is helpful to reduce the difficulty of clamping the second ends of the two first elastic arms 121 to the connecting seat 21. When the second guide surface 213 and the second bending portion 1311 coexist, it is helpful to reduce the difficulty of clamping the second ends of the two second elastic arms 131 to the connecting seat 21.

[0071] In some embodiments, please refer to Figure 5 The second guide surface 213 extends to the fastening block 211 and connects with the first guide surface 2112. The second guide surface 213 can guide the second end of the first elastic arm 121 to the fastening block 211 and to the first guide surface 2112, thereby improving the problem of jamming when the first elastic arm 121 slides on the surface of the connecting seat 21.

[0072] In some embodiments, please refer to Figure 5 The angle between the second guide surface 213 and the third direction Z is greater than the angle between the first guide surface 2112 and the third direction Z, meaning the first guide surface 2112 is more parallel to the third direction Z. By making the first guide surface 2112 more parallel to the third direction Z, it is beneficial to shorten the length of the fastening block 211 extending out of the other part of the connecting seat 21 along the first direction X, reduce the degree of deformation of the grounding spring 1 when it is installed or removed from the connecting seat 21, and improve the problem of the grounding spring 1 being unable to recover its deformation due to excessive deformation.

[0073] The grounding spring 1 and electronic device 100 of this application embodiment are connected by a snap-fit ​​connection between the grounding spring 1 and the connecting seat 21 of the conductive housing 2. This allows not only the circuit board 3 to be electrically connected to the conductive housing 2, but also the circuit board 3 to be mounted on the conductive housing 2. This reduces the number of screws required to mount the circuit board 3 to the conductive housing 2, or even eliminates the need for screws, thus addressing the issue that screw mounting of the circuit board 3 to the conductive housing 2 is not conducive to miniaturization. Furthermore, the snap-fit ​​connection between the grounding spring 1 and the connecting seat 21 of the conductive housing 2 facilitates the assembly and disassembly of the grounding spring 1 and the connecting snap-fit, improving the assembly and disassembly efficiency of the circuit board 3. By providing a first bending portion 1212 in the first elastic arm 121, a second bending portion 1311 in the second elastic arm 131, and a first guide surface 2112 and a second guide surface 213 in the connecting seat 21, when mounting the grounding spring 1 to the connecting seat 21, only the connecting member 11 needs to be moved closer to the connecting seat 21 by external force. This reduces the difficulty of mounting the grounding spring 1 to the connecting seat 21 and improves the installation efficiency of the circuit board 3. By providing a force-bearing part 1213 in the first elastic arm 121, or providing a first bending part 1212 at the second end of the first elastic arm 121, the second ends of the two first elastic arms 121 can be driven away from each other by the disassembly tooling, so that the grounding spring 1 can be disassembled from the connecting seat 21.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them; under the concept of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this application as described above, which are not provided in detail for the sake of brevity; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A grounding wiper, characterized by, A grounding sheet for electrically connecting a conductive shell with a circuit board, the conductive shell comprising a connecting seat, the connecting seat being provided with buckling blocks on opposite sides in a first direction, the grounding sheet comprising: a connecting piece for connecting with the circuit board; a first clamping structure comprising two first elastic arms, the first ends of the first elastic arms being connected to the connecting piece, the two first elastic arms clamping the connecting seat in the first direction, the first elastic arms being provided with clamping holes, the buckling blocks being at least partially arranged in the clamping holes.

2. The grounding sheet according to claim 1, wherein the grounding sheet comprises a second clamping structure, the second clamping structure comprising two second elastic arms, the first ends of the second elastic arms being connected to the connecting piece, the two second elastic arms clamping the connecting seat in the first direction.

3. The grounding sheet according to claim 2, wherein the grounding sheet comprises at least two second clamping structures, the first clamping structure being located between the two second clamping structures in a second direction; wherein the second direction is perpendicular to the first direction.

4. The grounding sheet according to claim 2, wherein the second ends of the first elastic arms are provided with first bending portions, the first bending portions being bent away from the connecting seat; and / or the second ends of the second elastic arms are provided with second bending portions, the second bending portions being bent away from the connecting seat.

5. The grounding sheet according to any one of claims 1 to 4, wherein the connecting piece is provided with a first opening, the first opening being used for a dismounting tool to extend between the two first elastic arms; the first elastic arms are provided with stress portions, along the stress portions in a direction towards the first opening, the stress portions of the two first elastic arms gradually move away from each other, the stress portions being used to contact the dismounting tool and drive the second ends of the two first elastic arms away from each other under the reaction force of the dismounting tool when the dismounting tool moves towards a position between the second ends of the two first elastic arms.

6. The grounding sheet according to any one of claims 1 to 3, wherein the conductive shell is provided with a second opening, the second opening being used for a dismounting tool to extend between the two first elastic arms; the second ends of the first elastic arms are provided with first bending portions, the first bending portions being bent away from the connecting seat; the first bending portions are used to contact the dismounting tool and drive the second ends of the two first elastic arms away from each other under the reaction force of the dismounting tool when the dismounting tool moves towards the connecting piece.

7. The grounding sheet according to claim 1, wherein the circuit board is provided with at least two positioning holes, the connecting piece is provided with at least two positioning columns, the at least two positioning columns are respectively arranged in the two positioning holes.

8. An electronic device, comprising: comprising a conductive shell comprising a connecting seat, the connecting seat being provided with buckling blocks on opposite sides in a first direction; a circuit board; the grounding sheet according to any one of claims 1 to 7.

9. The electronic device according to claim 8, wherein The side of the buckling block away from the connecting piece is provided with a bearing surface, and the side of the two buckling blocks away from each other is provided with a first guide surface. In the direction of the buckling block towards the connecting piece, the first guide surfaces of the two buckling blocks gradually approach each other. In the process of mounting the grounding spring sheet on the connecting seat, the first elastic arm is used for sliding along the first guide surface, so that the second ends of the two first elastic arms are away from each other, and the first elastic arm is also used for restoring deformation when leaving the first guide surface, so that the inner wall of the clamping hole bears against the bearing surface.

10. The electronic device of claim 8, wherein, The opposite sides of the connecting seat along the first direction are provided with second guide surfaces. In the direction of the buckling block towards the connecting piece, the second guide surfaces gradually approach each other. In the process of mounting the grounding spring sheet on the connecting seat, the first elastic arm is used for sliding along the second guide surface, so that the second ends of the two first elastic arms are away from each other.

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