Grounding elastic sheet and electronic equipment

By using grounding springs with multiple elastic contact feet that are outwardly extended in the design, the problem of poor contact caused by errors in single-tooth grounding springs is solved, thereby improving the grounding effect and the electromagnetic shielding and anti-static performance of the equipment.

CN223815823UActive Publication Date: 2026-01-20SUZHOU INOSA UNITED POWER SYST CO LTD
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Patent Information

Application Number
CN202520052093.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2026-01-20
Estimated Expiration
2035-01-09

AI Technical Summary

Technical Problem

The existing grounding spring is designed with a single tooth shape, which is prone to poor contact with components such as the outer casing or PCB board due to manufacturing and assembly errors, making it difficult to guarantee the grounding effect.

Method used

The grounding spring design includes a main body and multiple elastic contact feet. The elastic contact feet are set outward relative to the main body towards the second grounding body to elastically abut against the second grounding body, ensuring that even if one contact foot has poor contact, the other contact feet can still make contact, thus guaranteeing the grounding effect.

Benefits of technology

The design of multiple flexible contact feet improves the contact reliability and stability of the grounding spring, reduces the impact of manufacturing and assembly deviations on the grounding effect, and ensures the electromagnetic shielding and anti-static functions of electronic equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a grounding elastic sheet and electronic equipment, and relates to the technical field of electronic equipment, the grounding elastic sheet is used for grounding abutting or connection with a first grounding body and a second grounding body, the grounding elastic sheet comprises a body and a plurality of elastic contact pins, one end of the body is used for connecting with the first grounding body, and the other end of the body is used for connecting with the second grounding body. The plurality of elastic contact pins are arranged at the other end of the body, and the plurality of elastic contact pins are warped outwards relative to the body towards the direction of the second grounding body so as to elastically abut against the second grounding body. According to the technical scheme of the utility model, the grounding elastic sheet is provided with the body and the plurality of elastic contact pins, and the plurality of elastic contact pins are warped outwards relative to the body towards the direction of the second grounding body so as to elastically abut against the second grounding body. Therefore, when one elastic contact pin is in poor contact with the second grounding body due to manufacturing deviation and assembly deviation, the other elastic contact pins can still be in contact with the second grounding body, and the contact effect of the grounding elastic sheet is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of electromagnetic shielding technology, and in particular to a grounding spring and electronic equipment. Background Technology

[0002] Inverters, drives, and other electronic devices often require grounding to protect the internal electronic components from electrostatic damage.

[0003] Currently, grounding springs are typically used to ground the cover plate to the outer casing or PCB board, thereby enabling the cover plate to have electromagnetic shielding and anti-static functions. The grounding springs achieve tight contact with components such as the outer casing or PCB board through deformation force.

[0004] However, because the existing grounding spring is designed as a single tooth with only one elastic contact foot, it often results in poor contact between the single tooth grounding spring and components such as the outer casing or PCB board when there are large manufacturing and assembly errors, making it difficult to guarantee the contact effect of the grounding spring. Utility Model Content

[0005] The main purpose of this invention is to propose a grounding spring and electronic device, which aims to solve the problem that existing grounding springs are designed with a single tooth shape, and that single-tooth grounding springs are prone to poor contact with components such as the outer casing or PCB board.

[0006] To achieve the above objectives, the grounding spring proposed in this utility model is used to abut or connect with the first grounding body and the second grounding body;

[0007] The grounding spring includes a body and a plurality of elastic contact feet. One end of the body is used to connect to the first grounding body, and the plurality of elastic contact feet are disposed at the other end of the body. The plurality of elastic contact feet are arranged outward relative to the body toward the second grounding body so as to elastically abut against the second grounding body.

[0008] In some embodiments, a portion of the body is connected to the first grounding electrode, and another portion of the body is bent toward the second grounding electrode to form a bent structure, with a plurality of elastic contact feet disposed on the bent structure.

[0009] In some embodiments, the resilient contact foot has a fixed section and a raised section, the fixed section being connected to the bending structure, and the raised section being raised outward relative to the body toward the second grounding body, the raised section elastically abutting against the second grounding body.

[0010] In some embodiments, a plurality of the resilient contact feet are spaced apart, and the plurality of the resilient contact feet resiliently abut against the second grounding body.

[0011] In some embodiments, the grounding spring is an integral structure.

[0012] This utility model also proposes an electronic device, which includes a first grounding body, a second grounding body, and a grounding spring. At least one of the first grounding body and the second grounding body is used for grounding. A grounding spring is fixedly connected to the side of the first grounding body facing the second grounding body. A plurality of elastic contact feet of the grounding spring elastically abut against the second grounding body so that the first grounding body and the second grounding body are electrically connected.

[0013] In some embodiments, the grounding spring is press-fitted to the first grounding body.

[0014] In some embodiments, the first grounding body includes a cover plate, and the second grounding body includes a housing or a circuit board. The cover plate is provided with riveting protrusions, and the body is provided with riveting holes. The body and the cover plate are riveted together through the riveting protrusions and the riveting holes, and the plurality of elastic contact feet elastically abut against the housing or the circuit board.

[0015] In some embodiments, the housing has a locking body on the side near the grounding spring, the locking body extending toward the plurality of elastic contact feet, and the locking body elastically abutting against the plurality of elastic contact feet.

[0016] In some embodiments, there are multiple grounding springs, which are fixedly connected to the cover plate and are spaced apart.

[0017] The technical solution of this utility model adopts a grounding spring with a body and multiple elastic contact feet. The multiple elastic contact feet are arranged outward relative to the body towards the second grounding body so as to elastically abut against the second grounding body. This ensures that even if one elastic contact foot has poor contact with the second grounding body due to manufacturing deviation or assembly deviation, the remaining elastic contact feet can still contact the second grounding body, thereby ensuring the contact effect of the grounding spring. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of an embodiment of the grounding spring provided by this utility model;

[0020] Figure 2 A bottom-view sectional view of an embodiment of the electronic device provided by this utility model;

[0021] Figure 3 A top view of an embodiment of the first grounding body and grounding spring provided by this utility model.

[0022] Explanation of icon numbers:

[0023] 100. Electronic equipment; 10. First grounding electrode; 11. Cover plate; 20. Second grounding electrode; 21. Housing; 210. Locking body; 30. Grounding spring; 31. Body; 32. Bending structure; 33. Elastic contact foot; 330. Fixed section; 331. Raised section.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] Inverters, drives, and other electronic devices often require grounding to protect internal electronic components from electrostatic discharge (ESD) damage. Currently, multiple grounding springs are typically used to ground the cover plate to the casing or PCB, thus providing the cover plate with electromagnetic shielding and ESD protection.

[0029] Existing technology assembles the device by snapping a grounding spring onto a cover plate. This requires machining snap-fit ​​positions on the cover plate before the grounding spring can be installed using this snap-fit ​​mechanism. However, the difficulty and complexity of machining these snap-fit ​​positions increase the manufacturing cost of the electronic equipment.

[0030] This utility model proposes a grounding spring 30. Please refer to [link / reference]. Figure 1 and Figure 2 In one embodiment of the present invention, the grounding spring 30 proposed in the present invention is used to abut or connect with the first grounding body 10 and the second grounding body 20; the grounding spring 30 includes a body 31 and a plurality of elastic contact feet 33. One end of the body 31 is used to connect with the first grounding body 10, and the plurality of elastic contact feet 33 are disposed at the other end of the body 31, and the plurality of elastic contact feet 33 are arranged outward relative to the body 31 toward the second grounding body 20 so as to elastically abut with the second grounding body 20.

[0031] At least one of the first grounding body 10 and the second grounding body 20 is grounded. One end of the body 31 of the grounding spring 30 is connected to the first grounding body 10, and the other end of the body 31 is elastically abutted against the second grounding body 20 through a plurality of elastic contact feet 33, thereby allowing the first grounding body 10 to be electrically connected to the second grounding body 20 through the grounding spring 30. Current can flow from the first grounding body 10 or from the second grounding body 20 back to the ground, thereby protecting the electronic components inside the electronic device from electrostatic damage.

[0032] The connection between the body of the grounding spring 30 and the first grounding body 10 can be achieved by riveting or welding. After the body 31 of the grounding spring 30 is fixed to the first grounding body 10, the second grounding body 20 can be disposed on the side of the first grounding body 10. The second grounding body 20 can press against the multiple elastic contact feet 33 of the grounding spring 30, causing the multiple elastic contact feet 33 to deform and firmly abut against the second grounding body 20, thereby enabling the first grounding body 10 to be electrically connected to the second grounding body 20 through the grounding spring 30. Optionally, the first grounding body 10 can be a cover plate 11, and the second grounding body 20 can be a housing 21 or a circuit board. The cover plate 11 is electrically connected to the housing 21 or the circuit board through the multiple elastic contact feet 33 of the grounding spring 30, so that current can flow from the cover plate 11 or from the housing 21 back to the ground, thereby protecting the electronic components inside the electronic device from electrostatic damage.

[0033] The technical solution of this utility model adopts a grounding spring 30 with a body 31 and multiple elastic contact feet 33. The multiple elastic contact feet 33 are outwardly arranged relative to the body 31 toward the second grounding body 20 so as to elastically abut against the second grounding body 20. This ensures that when one elastic contact foot 33 has poor contact with the second grounding body 20 due to manufacturing deviation or assembly deviation, the remaining elastic contact feet 33 can still contact the second grounding body 20, thereby ensuring the contact effect of the grounding spring 30.

[0034] Furthermore, part of the structure of the body 31 is connected to the first grounding body 10, and another part of the structure of the body 31 is bent toward the second grounding body 20 to form a bent structure 32, and a plurality of elastic contact feet 33 are provided on the bent structure 32.

[0035] In one embodiment, reference is made to Figure 2 and Figure 3 The first grounding body 10 can be a plate-shaped structure, and the second grounding body 20 can also be a plate-shaped structure, with the second grounding body 20 disposed on the side of the first grounding body 10. Alternatively, the first grounding body 10 can be a plate-shaped structure, and the second grounding body 20 can be a shell structure, with the second grounding body 20 mounted on the first grounding body 10.

[0036] Part of the structure of the main body 31 can be fixedly connected to the first grounding body 10 to form an integral structure. This part of the main body 31 and the first grounding body 10 can be fixedly connected to each other by riveting or welding to form a non-removable part. This non-removable part does not require additional screws for connection and fixation to the first grounding body 10, thus reducing the processing difficulty and cost of the first grounding body 10 and the grounding spring 30. Furthermore, the conductive connection between the first grounding body 10 and the second grounding body 20 can be completed simply by directly contacting this non-removable part with the second grounding body 20, simplifying the operation.

[0037] The bending structure 32 of the grounding spring 30 can be bent along the height direction of the first grounding body 10, so that the bending structure 32 is parallel to the inner wall of the second grounding body 20, making the grounding spring 30 L-shaped. Multiple elastic contact feet 33 on the bending structure 32 are bent outwards towards the second grounding body 20, allowing them to contact the inner wall of the second grounding body 20. In one embodiment, the bending structure 32 is provided with multiple elastic contact feet 33, ensuring that even if one elastic contact foot 33 has poor contact with the second grounding body 20 due to manufacturing or assembly deviations, the remaining elastic contact feet 33 can still contact the second grounding body 20, thus ensuring the contact effect of the grounding spring 30.

[0038] The bending structure 32 can also be configured as an arc shape, or the bending structure 32 can be bent in multiple places, so that the grounding spring 30 is C-shaped, Z-shaped, or M-shaped, etc. In addition, the multiple elastic contact feet 33 on the bending structure 32 are bent outwards towards the second grounding body 20, so that the multiple elastic contact feet 33 can elastically abut against the second grounding body 20.

[0039] To facilitate contact between the grounding spring 30 and the second grounding body 20, the elastic contact foot 33 has a fixed section 330 and a raised section 331. The fixed section 330 is connected to the bending structure 32, and the raised section 331 is set to be raised outward relative to the body towards the second grounding body 20. The raised section 331 elastically abuts against the second grounding body 20.

[0040] Reference Figure 2 The first grounding body 10 has a plate-like structure, and the second grounding body 20 has a shell structure. Part of the structure of the main body 31 is fixedly connected to the inner top surface of the first grounding body 10. There is an installation gap between the grounding spring 30 and the outer edge of the first grounding body 10. The second grounding body 20 is installed into the installation gap. The outer side wall of the second grounding body 20 abuts against the outer edge of the first grounding body 10, and the inner side wall of the second grounding body 20 abuts against multiple elastic contact feet 33 on the bent structure 32, thereby making the first grounding body 10 and the second grounding body 20 electrically connected. Current can flow from the first grounding body 10 or from the second grounding body 20 back to the ground. The first grounding body 10 or the second grounding body 20 has the functions of electromagnetic shielding and anti-static, so as to protect the electronic components inside the electronic equipment from electrostatic damage.

[0041] Specifically, in one embodiment, the first grounding body 10 is a cover plate, and the second grounding body 20 is a housing or circuit board. The raised section 331 of the elastic contact foot 33 is connected to the bending structure 32 through the fixed section 330, and the elastic contact foot 33 can be raised outward relative to the bending structure 32. The housing 21 or circuit board can press against the raised section 331 of the elastic contact foot 33, and the raised section 331 deforms and can firmly abut against the housing 21 or circuit board.

[0042] The elastic contact foot 33 can be S-shaped, arc-shaped, or hook-shaped. The raised section 331 of the elastic contact foot 33 is used to contact the second grounding body 20 so that the first grounding body 10 and the second grounding body 20 can be electrically connected through the multiple elastic contact feet 33 of the grounding spring 30.

[0043] Due to deviations in form and position tolerances or forces, if the grounding spring 30 is designed with only one elastic contact foot 33, poor contact between the grounding spring 30 and the second grounding body 20 is likely to occur. Therefore, in one embodiment, referring to... Figure 1Multiple elastic contact feet 33 are spaced apart, and the multiple elastic contact feet 33 elastically abut against the second grounding body 20. The grounding spring 30 is provided with multiple elastic contact feet 33 so that if one elastic contact foot 33 fails to make good contact with the second grounding body 20 due to deviations in form and position tolerances or deviations in force, it can still make contact with the second grounding body 20 through another one or more elastic contact feet 33, thereby improving the reliability of the conductive connection between the first grounding body 10 and the second grounding body 20.

[0044] In one embodiment, the grounding spring 30 is an integral structure. Specifically, the grounding spring 30 can be directly manufactured by a stamping process, which is more convenient and faster to process; and the grounding spring 30 is more stable as a whole.

[0045] Furthermore, the grounding spring 30 is connected to the first grounding body 10 by riveting or welding. The body 31 of the grounding spring 30 is fixedly connected to the first grounding body 10 by riveting or welding, so that the grounding spring 30 is not easy to detach from the first grounding body 10, thereby improving the connection reliability between the grounding spring 30 and the first grounding body 10, and thus improving the grounding reliability between the grounding spring 30 and the second grounding body 20.

[0046] This utility model also proposes an electronic device 100, please refer to [link / reference needed]. Figure 2 and Figure 3 The electronic device 100 includes a first grounding body 10, a second grounding body 20, and a grounding spring 30. At least one of the first grounding body 10 and the second grounding body 20 is used for grounding. The grounding spring 30 is fixedly connected to the side of the first grounding body 10 facing the second grounding body 20. A plurality of elastic contact feet 33 of the grounding spring 30 are in contact with the second grounding body 20 so that the first grounding body 10 and the second grounding body 20 are electrically connected.

[0047] In one embodiment, at least one of the first grounding body 10 and the second grounding body 20 is grounded. The first grounding body 10 is connected to the body 31 of the grounding spring 30, and the plurality of elastic contact feet 33 of the grounding spring 30 are in contact with the second grounding body 20, thereby enabling the first grounding body 10 to be electrically connected to the second grounding body 20 through the grounding spring 30. Current can flow from the first grounding body 10 or from the second grounding body 20 back to the ground, thereby protecting the electronic components inside the electronic device from electrostatic damage.

[0048] The electronic device 100 may be a frequency converter, driver, etc. At least one of the first grounding body 10 and the second grounding body 20 can be grounded via a wire. Then, the first grounding body 10 is connected to the body 31 of the grounding spring 30, and the multiple elastic contact feet 33 of the grounding spring 30 elastically abut against the second grounding body 20. The first grounding body 10 and the second grounding body 20 are electrically connected, so that the first grounding body 10 and the second grounding body 20 have electromagnetic shielding and anti-static functions, thereby suppressing electromagnetic interference and protecting the electronic components inside the electronic device 100 from electrostatic damage.

[0049] The first grounding electrode 10 can be a cover plate 11, and the second grounding electrode 20 can be a housing 21 or a circuit board. Specifically, refer to... Figure 2 The first grounding body 10 is a cover plate 11, and the second grounding body 20 is a housing 21. A grounding spring 30 is fixedly connected to the inner top surface of the cover plate 11, which abuts or connects the outer edge of the cover plate 11 to the outer edge of the housing 21. The grounding spring 30 on the cover plate 11 can abut against the inner sidewall of the housing 21, thereby making the cover plate 11 and the housing 21 electrically connected. The cover plate 11 is conductive to the housing 21 through the grounding spring 30, and the current can flow from the cover plate 11 or from the housing 21 back to the ground, thereby protecting the electronic components inside the electronic equipment from electrostatic damage.

[0050] Alternatively, the first grounding body 10 can be a cover plate 11, and the second grounding body 20 can be a circuit board. The circuit board is installed inside the electronic device 100. There is a gap between the cover plate 11 and the circuit board. A grounding spring 30 is fixedly connected to the inner top surface of the cover plate 11. The grounding spring 30 contacts the circuit board within the gap, so that the cover plate 11 and the circuit board are electrically connected. The cover plate 11 is conductive to the circuit board through the grounding spring 30, and the current can flow from the cover plate 11 or from the circuit board back to the ground, thereby protecting the electronic components inside the electronic device from electrostatic damage.

[0051] Furthermore, the grounding spring 30 is riveted to the first grounding body 10, making it difficult for the grounding spring 30 to detach from the first grounding body. This improves the reliability of the connection between the grounding spring 30 and the first grounding body 10, and consequently, the reliability of the grounding conductive connection between the grounding spring 30 and the second grounding body 20. Moreover, the grounding spring 30 and the first grounding body 10 are fixedly connected to each other as a non-removable part through riveting. This non-removable part does not require additional screws for connection and fixation to the first grounding body 10, thus reducing the processing difficulty and cost of the first grounding body 10 and the grounding spring 30. The conductive connection between the first grounding body 10 and the second grounding body 20 can be completed simply by directly connecting this non-removable part to the second grounding body 20 through multiple elastic contact feet 33, simplifying the operation.

[0052] The existing grounding spring 30 is connected to the cover plate 11 by screws. This requires drilling holes in the cover plate 11, then screwing screws at the connection point between the cover plate 11 and the grounding spring 30, and finally locking the nuts. This operation is cumbersome, increases the number of steps on the production line, and results in high production costs.

[0053] In one embodiment, the first grounding body 10 of the electronic device 100 of the present invention includes a cover plate 11, and the second grounding body 20 includes a housing 21 or a circuit board. The cover plate 11 is provided with riveting protrusions, and the body 31 is provided with riveting holes. The body 31 and the cover plate 11 are riveted together by the riveting protrusions and the riveting holes. A plurality of elastic contact feet 33 elastically abut against the housing 21 or the circuit board.

[0054] Specifically, the inner top surface of the cover plate 11 may be provided with protruding riveting protrusions, and the body 31 is provided with riveting holes corresponding to the fixing protrusions. Then, the body 31 and the cover plate 11 are riveted together through the riveting protrusions and riveting holes, thereby fixing the body 31 to the inner top surface of the cover plate 11. The grounding spring 30 is connected to the cover plate 11 to form a non-removable part.

[0055] Please see Figure 1 Each grounding spring 30 may have two riveting holes on its body 31 to securely fix the body 31 of the grounding spring 30 to the cover plate 11. Optionally, the shape of the riveting holes may be circular, square, etc. The shape of the riveting protrusions corresponds to the shape of the riveting holes. The cover plate 11 may have multiple riveting protrusions to fix the bodies of multiple grounding springs 30 to the cover plate 11, and then the bodies of multiple grounding springs 30 are riveted to the cover plate 11 through the riveting protrusions and riveting holes.

[0056] In one embodiment, the body 31 is riveted together with the first grounding body 10, thus completing the assembly of the cover plate 11 and the grounding spring 30. This process is simple and reduces production costs. Furthermore, the grounding spring 30 is fixedly connected to the first grounding body 10 via riveting, making it less likely to detach from the first grounding body 10 and improving the connection stability of the grounding spring 30. It also eliminates the need for screws and snap-fit ​​designs on the first grounding body 10, significantly reducing processing and assembly difficulties.

[0057] The main body 31 and the cover plate 11 are riveted together by riveting protrusions and riveting holes. The structure of the main body 31 not connected to the cover plate 11 can be bent to form a bent structure 32. There is an installation gap between the grounding spring 30 and the outer edge of the cover plate 11. The housing 21 is installed into the installation gap, and the outer wall of the housing 21 abuts against the outer edge of the cover plate 11. The inner wall of the housing 21 abuts against multiple elastic contact feet 33 on the bent structure 32, thereby connecting the cover plate 11 and the housing 21. The cover plate 11 is connected to the housing 21 through the multiple elastic contact feet 33 of the grounding spring 30. Current can flow from the cover plate 11 or from the second housing 21 back to the ground. The cover plate 11 and the housing 21 have electromagnetic shielding and anti-static functions to protect the electronic components inside the electronic equipment from electrostatic damage. Furthermore, even if one of the elastic contact feet 33 in the grounding spring 30 fails to make good contact with the second grounding body 20 due to manufacturing or assembly deviations, the remaining elastic contact feet 33 can still make contact with the second grounding body 20, thus ensuring the contact effect of the grounding spring 30.

[0058] In one embodiment, after the cover plate 11 is assembled with the housing 21, the inner wall of the housing 21 presses against multiple elastic contact feet 33 on the bent structure 32 of the grounding spring 30. To further ensure that the multiple elastic contact feet 33 on the bent structure 32 are in contact with the housing 21, the multiple elastic contact feet 33 are configured to be outwardly curved relative to the bent structure 32 toward the housing 21. When the inner wall of the housing 21 presses against the multiple elastic contact feet 33, the multiple elastic contact feet 33 deform and can firmly abut against the inner wall of the housing 21, thereby making the contact between the housing 21 and the multiple elastic contact feet 33 more stable.

[0059] In another embodiment, the second grounding body 20 includes a circuit board, which is installed within the housing formed by the cover plate 11 and the casing 21, with a gap between the circuit board and the cover plate 11. After the body 31 and the cover plate 11 are riveted together by riveting protrusions and riveting holes, the structure of the body 31 not connected to the cover plate 11 can be bent to form a bent structure 32, with multiple elastic contact feet 33 on the bent structure 32 contacting the circuit board. The cover plate 11 is electrically connected to the circuit board through a grounding spring 30, allowing current to flow from the cover plate 11 or the circuit board back to the ground. The cover plate 11 and the circuit board provide electromagnetic shielding and anti-static functions to protect other electronic components inside the electronic device from electrostatic damage.

[0060] In one embodiment, to allow the housing 21 to press against the raised sections 331 of the multiple elastic contact feet 33, the housing 21 has a retaining body 210 on the side near the grounding spring 30. The retaining body 210 extends toward the multiple elastic contact feet 33 and elastically abuts against the multiple elastic contact feet 33. The outer wall of the housing 21 abuts against the outer edge of the cover plate 11, and the inner wall of the housing 21 is provided with the retaining body 210 so that it presses against the raised sections 331 of the multiple elastic contact feet 33; the raised sections 331 deform and can firmly abut against the housing 21.

[0061] Please see Figure 2 There are multiple grounding springs 30, which are fixedly connected to the cover plate 11 and can contact the housing 21 or the circuit board. They can not only limit the housing 21 or the circuit board, but also ensure the grounding stability of the cover plate 11 and the housing 21 or the circuit board.

[0062] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A grounding spring, the grounding spring being used to abut or connect with a first grounding body and a second grounding body, characterized in that, The grounding spring includes a body and a plurality of elastic contact feet. One end of the body is used to connect to the first grounding body, and the plurality of elastic contact feet are disposed at the other end of the body. The plurality of elastic contact feet are arranged outward relative to the body toward the second grounding body so as to elastically abut against the second grounding body.

2. The grounding spring as described in claim 1, characterized in that, A portion of the body is connected to the first grounding electrode, and another portion of the body is bent toward the second grounding electrode to form a bent structure, with a plurality of elastic contact feet disposed on the bent structure.

3. The grounding spring as described in claim 2, characterized in that, The elastic contact foot has a fixed section and a raised section. The fixed section is connected to the bending structure, and the raised section is set outward relative to the body towards the second grounding body. The raised section elastically abuts against the second grounding body.

4. The grounding spring as described in claim 1, characterized in that, The plurality of elastic contact feet are spaced apart, and the plurality of elastic contact feet elastically abut against the second grounding body.

5. The grounding spring as described in any one of claims 1 to 4, characterized in that, The grounding spring is a single integrated structure.

6. An electronic device, characterized in that, The electronic device includes a first grounding body, a second grounding body, and a grounding spring as described in any one of claims 1 to 5. At least one of the first grounding body and the second grounding body is used for grounding. A grounding spring is fixedly connected to the side of the first grounding body facing the second grounding body. A plurality of elastic contact feet of the grounding spring elastically abut against the second grounding body to make the first grounding body and the second grounding body electrically connected.

7. The electronic device as claimed in claim 6, characterized in that, The grounding spring is press-fitted to the first grounding body.

8. The electronic device as claimed in claim 7, characterized in that, The first grounding body includes a cover plate, and the second grounding body includes a housing or a circuit board. The cover plate is provided with riveting protrusions, and the body is provided with riveting holes. The body and the cover plate are riveted together through the riveting protrusions and the riveting holes. The plurality of elastic contact feet elastically abut against the housing or the circuit board.

9. The electronic device as claimed in claim 8, characterized in that, The housing has a locking body on the side near the grounding spring, the locking body extends toward the plurality of elastic contact feet, and the locking body elastically abuts against the plurality of elastic contact feet.

10. The electronic device as claimed in claim 8, characterized in that, The number of grounding springs is multiple, and the multiple grounding springs are fixedly connected to the cover plate, and the multiple grounding springs are spaced apart.