Conducting elastic sheet
Through the design of the conductive shrapnel of the composite structure, the elastic force is increased and the impedance is reduced, which solves the problems of low elastic force and unstable contact of the existing conductive shrapnel, and achieves more stable contact and lower impedance.
Patent Information
- Application Number
- CN202422055407.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The existing conducting shrapnel has a small elastic force, poor contact stability, and a large impedance.
The composite structure including a base plate, an elastic force arm and a support arm is adopted. The elastic force arm is composed of a first arc arm, a first horizontal force arm, a second arc arm, a second horizontal force arm, a third arc arm and a first inclined lift arm. The support arm is composed of a fourth arc arm and a second inclined lift arm. The second contact part is located below the first horizontal force arm to form a double loop conduction, increasing elastic force and reducing impedance.
It improves the elasticity of the conductive shrapnel, ensures more stable and reliable contact, and reduces contact impedance.
Smart Images
Figure CN223124238U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elastic sheet connectors, and particularly relates to a conductive elastic sheet. Background Art
[0002] At present, the conductive elastic sheet generally adopts a C-shaped structure or an O-shaped structure. Both the C-shaped structure and the O-shaped structure have the following problems: First, they are both single-force-arm architectures, with relatively small elastic force and relatively poor contact stability; second, when conducting electricity, the impedance is large. Content of the Utility Model
[0003] The technical problem solved by the utility model is to provide a conductive elastic sheet with large elastic force and small impedance.
[0004] In order to solve the above technical problem, the technical solution adopted by the utility model is: a conductive elastic sheet, including a bottom plate, one end of the bottom plate is connected with an elastic force arm, and the elastic force arm includes a first arc arm, a first horizontal force arm, a second arc arm, a second horizontal force arm, a third arc arm, a first inclined rising force arm and a first contact part connected in sequence. One end of the first arc arm far away from the first horizontal force arm is connected with the bottom plate. The first horizontal force arm and the second horizontal force arm are respectively parallel to the bottom plate, and the second horizontal force arm is located above the first horizontal force arm; the other end of the bottom plate is connected with a supporting force arm, and the supporting force arm includes a fourth arc arm, a second inclined rising force arm and a second contact part connected in sequence. The second contact part is located below the first horizontal force arm, and the second contact part is used for contacting the first horizontal force arm.
[0005] In one embodiment, the top surface of the second horizontal force arm is a suction plane.
[0006] In one embodiment, one end of the first inclined rising force arm far away from the third arc arm is bent towards the direction close to the first horizontal force arm to form the first contact part.
[0007] In one embodiment, a first contact convex bump is convexly provided on the first contact part.
[0008] In one embodiment, one end of the second inclined rising force arm far away from the fourth arc arm is bent towards the direction close to the bottom plate to form the second contact part.
[0009] In one embodiment, a second contact convex bump is convexly provided on the second contact part.
[0010] In one embodiment, in the state where the conductive elastic sheet is not pressed, the second contact part contacts the bottom surface of the first horizontal force arm, or there is a gap between the bottom surface of the first horizontal force arm and the second contact part.
[0011] In one embodiment, protective arms are respectively connected to both sides of the bottom plate. Part of the elastic force arm and at least part of the support force arm are located between the two protective arms, and the top ends of the protective arms are arranged lower than the first contact part.
[0012] In one embodiment, the conducting spring piece is an integral structure formed by processing a piece of metal plate.
[0013] The beneficial effects of the present utility model are as follows: The structure of the conducting spring piece is novel. When the first contact part is pressed, the support force arm can provide positive support for the first horizontal force arm of the elastic force arm, thereby improving the elasticity of the conducting spring piece and enabling the conducting spring piece to achieve a large elastic force. At the same time, after the second contact part contacts the first horizontal force arm, a double-loop conduction can be formed at the bottom of the conducting spring piece, thereby reducing the contact impedance of the conducting spring piece and making the working contact of the conducting spring piece more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.
[0015] Figure 1 It is a schematic structural view of the conducting spring piece according to Embodiment 1 of the present utility model;
[0016] Figure 2 It is a cross-sectional view of the conducting spring piece according to Embodiment 1 of the present utility model;
[0017] Figure 3 It is a rear view of the conducting spring piece according to Embodiment 1 of the present utility model.
[0018] Explanation of the reference numerals in the drawings:
[0019] 1. Bottom plate; 11. Welding surface;
[0020] 2. Elastic force arm; 21. First arc arm; 22. First horizontal force arm; 23. Second arc arm; 24. Second horizontal force arm; 241. Suction plane; 25. Third arc arm; 26. First inclined rising force arm; 27. First contact part;
[0021] 3. Support force arm; 31. Fourth arc arm; 32. Second inclined rising force arm; 33. Second contact part;
[0022] 4. Protective arm. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings.
[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0025] It should be noted that if there are directional indications such as up, down, left, right, front, back... in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indications will also change accordingly.
[0026] In addition, if there are descriptions such as "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature.
[0027] In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "and / or" as an example, it includes the solution, or the solution, or the solution that satisfies both simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0028] In this application, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two 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.
[0029] Embodiment 1
[0030] Please refer to Figures 1 to 3, Embodiment 1 of the present utility model is: A conduction elastic sheet, including a bottom plate 1, one end of the bottom plate 1 is connected with an elastic force arm 2, the elastic force arm 2 includes a first arc arm 21, a first horizontal force arm 22, a second arc arm 23, a second horizontal force arm 24, a third arc arm 25, a first inclined rising force arm 26 and a first contact part 27 connected in sequence. One end of the first arc arm 21 far away from the first horizontal force arm 22 is connected with the bottom plate 1. The first horizontal force arm 22 and the second horizontal force arm 24 are respectively parallel to the bottom plate 1, and the second horizontal force arm 24 is located above the first horizontal force arm 22. The other end of the bottom plate 1 is connected with a support force arm 3, the support force arm 3 includes a fourth arc arm 31, a second inclined rising force arm 32 and a second contact part 33 connected in sequence. One end of the fourth arc arm 31 far away from the second inclined rising force arm 32 is connected with the bottom plate 1. The second contact part 33 is located below the first horizontal force arm 22, and the second contact part 33 is used for contacting the first horizontal force arm 22.
[0031] The bottom plate 1, the first arc arm 21, the first horizontal force arm 22, the second arc arm 23 and the second horizontal force arm 24 form a quasi-S-shaped structure.
[0032] When the conduction elastic sheet is in an uncompressed state, the second contact part 33 contacts the bottom surface of the first horizontal force arm 22, or there is a gap between the bottom surface of the first horizontal force arm 22 and the second contact part 33.
[0033] The bottom surface of the bottom plate 1 is a welding surface 11, and the top surface of the second horizontal force arm 24 is a suction plane 241. The suction plane 241 can provide a suction position for the surface mounting process, which is beneficial to improving the assembly efficiency of the conduction elastic sheet and external fixing devices (such as a PCB board, etc.).
[0034] One end of the first inclined rising force arm 26 far away from the third arc arm 25 is bent towards the direction close to the first horizontal force arm 22 to form the first contact part 27, and the forming method of the first contact part 27 is simple. Preferably, a first contact convex bump (not shown in the figure) is convexly provided on the first contact part 27. The setting of the first contact convex bump can improve the contact conduction stability between the conduction elastic sheet and the external device to be conducted.
[0035] One end of the second inclined rising force arm 32 far away from the fourth arc arm 31 is bent towards the direction close to the bottom plate 1 to form the second contact part 33, and the forming method of the first contact part 27 is simple. Preferably, a second contact convex bump (not shown in the figure) is convexly provided on the second contact part 33. The setting of the second contact convex bump can improve the contact conduction stability between the support force arm 3 and the first horizontal force arm 22.
[0036] To prevent overpressure of the elastic force arm 2, protective arms 4 are respectively connected to both sides of the bottom plate 1. Part of the elastic force arm 2 and at least part of the supporting force arm 3 are located between the two protective arms 4. The top ends of the protective arms 4 are arranged lower than the first contact part 27. Preferably, the protective arms 4 located on both sides of the bottom plate 1 are arranged in parallel.
[0037] To facilitate the processing and manufacturing of the conduction elastic sheet, the conduction elastic sheet is an integral structure formed by processing a metal sheet through processes such as cutting and bending.
[0038] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims
1. A conductive shrapnel, characterized in that: It includes a bottom plate, one end of the bottom plate is connected with an elastic force arm, the elastic force arm includes a first arc arm, a first horizontal force arm, a second arc arm, a second horizontal force arm, a third arc arm, a first inclined rising force arm and a first contact part which are connected in sequence. One end of the first arc arm far away from the first horizontal force arm is connected with the bottom plate. The first horizontal force arm and the second horizontal force arm are respectively parallel to the bottom plate, and the second horizontal force arm is located above the first horizontal force arm. The other end of the bottom plate is connected with a supporting force arm. The supporting force arm includes a fourth arc arm, a second inclined rising force arm and a second contact part which are connected in sequence. The second contact part is located below the first horizontal force arm, and the second contact part is used for contacting the first horizontal force arm.
2. The conductive shrapnel according to claim 1, characterized in that: The top surface of the second horizontal force arm is a suction plane.
3. The electrically conductive shrapnel according to claim 1, wherein: One end of the first inclined rising force arm far away from the third arc arm is bent towards the direction close to the first horizontal force arm to form the first contact part.
4. The conductive shrapnel according to claim 3, wherein: The first contact convex bump is convexly provided on the first contact part.
5. The electrically conductive shrapnel according to claim 1, wherein: One end of the second inclined rising force arm far away from the fourth arc arm is bent towards the direction close to the bottom plate to form the second contact part.
6. The electrically conductive shrapnel according to claim 5, wherein: The second contact convex bump is convexly provided on the second contact part.
7. The electrically conductive shrapnel according to claim 1, wherein: When the conduction elastic sheet is in an uncompressed state, the second contact part contacts the bottom surface of the first horizontal force arm, or there is a gap between the bottom surface of the first horizontal force arm and the second contact part.
8. The electrically conductive shrapnel according to claim 1, characterized in that: Protection arms are respectively connected to both sides of the bottom plate. Part of the elastic force arm and at least part of the supporting force arm are located between the two protection arms, and the top end of the protection arm is arranged lower than the first contact part.
9. The electrically conductive shrapnel according to claim 1, wherein: The conduction elastic sheet is an integral structure processed from a piece of metal sheet.