Riveting nut knot for electrode plate

Abstract

The utility model discloses a riveting nut knot for an electrode plate, which relates to the technical field of nut parts and comprises a nut body. The top of the nut body is fixedly connected with a sealing cap, and the side, away from the nut body, of the sealing cap is connected with battery tabs. Through the innovative stepped riveting surface design and the synergistic effect of multiple components, efficient and high-reliability operation of electrode plate connection is achieved, the fixing column achieves accurate self-centering when the electrode plate is inserted for pre-punching by means of the size design of the fixing column larger than the outer diameter of the nut body, and therefore the electrode plate connection efficiency is improved. The spiral air guide groove exhausts air between the electrode plate and the nut at the initial stage of crimping, poor contact caused by an air gap is avoided, the silver-plated surface of the spline teeth pierces an electrode plate oxide layer in advance, an initial conductive channel is established, and the three-stage transition design of the stepped inclined plane realizes progressive crimping, and an electrode plate material starts to plastically flow under the first-stage pressure, so that the electrode plate material is pressed. And the assembly clearance is gradually eliminated, so that the damage to the electrode plate caused by excessive one-time crimping is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of nut parts, specifically to a riveted nut for electrode sheets. Background Technology

[0002] Electrode pads are secured to circuit boards or other electronic components using crimp nuts, ensuring stable positioning and preventing displacement due to vibration or temperature changes. The crimp nuts establish a reliable electrical connection between the electrode pads and the circuit board or other components, ensuring smooth current flow. Through mechanical riveting, crimp nuts provide higher connection strength than traditional welding or screw connections, making them suitable for applications requiring high mechanical stress. The special crimping process enhances connection reliability and reduces connection failures caused by vibration, temperature changes, and other factors. During the connection process, the crimp nuts create a seal, preventing moisture, dust, and other external factors from entering and protecting the circuit from damage.

[0003] Traditional electrode plates are fused to circuit boards or other connectors at high temperatures, secured to the circuit board with screws and nuts, and then pressed onto metal contacts or connectors on the circuit board using a crimping tool. Alternatively, conductive adhesive can be used to bond the electrode plates to the circuit board, and finally, high temperature and pressure can be used to press the electrode plates together with the metal contacts on the circuit board.

[0004] The above-mentioned solutions cause the electrode material to deteriorate in the heat-affected zone during use, making it difficult to disassemble and maintain. Destructive removal is required during battery recycling. The contact pressure is uneven, and the electrode is prone to loosening under vibration. Additional anti-loosening structures are needed, which increases the complexity of the process. The single-stage crimping design of ordinary rivet nuts is prone to cracking of the electrode edge. It lacks conductivity optimization, and it is difficult to balance the requirements of high locking force and low contact resistance. Utility Model Content

[0005] The purpose of this utility model is to provide a riveting nut for electrode sheets, in order to solve the technical problems of the prior art, such as the heat-affected zone causing the electrode sheet material performance to deteriorate, making it difficult to disassemble and maintain, requiring destructive removal during battery recycling, uneven contact pressure, easy loosening under vibration, need for additional anti-loosening structure, and increasing process complexity. The single-stage crimping design of ordinary riveting nuts is prone to causing cracking of electrode sheet edges, lacks conductivity optimization, and makes it difficult to balance high locking force requirements with low contact resistance.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0007] An electrode sheet using a crimped nut assembly, comprising a nut body;

[0008] A cap is fixedly connected to the top of the nut body. A battery tab is connected to the side of the cap away from the nut body. The battery tab has axial interlocking grooves. A toothed pattern is connected to the end of the nut body away from the cap. A fixing post is connected to the end of the toothed pattern away from the nut body. The diameter of the fixing post is larger than the outer diameter of the nut body. A sealing filler ring is connected to the side of the fixing post away from the toothed pattern. A shearing frustum is provided on the side of the sealing filler ring away from the fixing post. A riveting surface is provided on the bottom end face of the nut body. A stepped inclined surface is provided between the riveting surface and the nut body.

[0009] As a further embodiment of this utility model, the nut body is made of chromium-zirconium-copper alloy.

[0010] As a further embodiment of this utility model, the cap and the nut body are fixed together by laser welding.

[0011] As a further embodiment of this utility model: the cap and the nut body form a continuous annular weld.

[0012] As a further embodiment of this invention: the axial interlocking pattern consists of multiple evenly distributed V-shaped grooves.

[0013] As a further embodiment of this invention, the surface of the floral pattern is plated with a silver layer.

[0014] As a further embodiment of this invention, the surface of the silver layer is covered with an anti-oxidation passivation film.

[0015] As a further embodiment of this utility model, the surface of the fixed column is provided with a spiral air guide groove.

[0016] As a further embodiment of this invention, the sealing filler ring is made of fluororubber.

[0017] As a further embodiment of this utility model: the stepped inclined plane includes three levels of transitional inclined planes, with the first level having an angle of 30 degrees, the second level having an angle of 45 degrees, and the third level having an angle of 60 degrees.

[0018] The beneficial effects of this utility model are:

[0019] 1. This utility model achieves efficient and reliable electrode plate connection through innovative stepped riveting surface design and multi-component synergy. The fixing post, with its size larger than the outer diameter of the nut body, achieves precise self-alignment when inserted into the pre-punched hole of the electrode plate. The spiral air guide groove discharges air between the electrode plate and the nut in the initial stage of pressing, avoiding poor contact caused by air gaps. The silver-plated surface of the serrated teeth pre-pierces the oxide layer of the electrode plate to establish an initial conductive channel. The three-stage transition design of the stepped slope enables progressive pressing. The electrode plate material begins to plastically flow under the first stage of pressure, gradually eliminating assembly gaps and avoiding damage to the electrode plate caused by excessive pressing at once, thus improving the sealing and stability of the connection.

[0020] 2. The shearing frustum of this invention fractures preferentially under excessive pressure, protecting the electrode plates from damage. The fluororubber sealing ring forms a protective seal after compression, and the laser-welded continuous annular weld ensures the airtightness of the cap. Compared with traditional structures, this invention has significant advantages, significantly improving the reliability of electrode plate connections, reducing the failure rate caused by poor connections, and making the connection process more stable and reliable. This reduces the frequency of maintenance and replacement, thereby improving work efficiency. The overall design takes safety into consideration, reducing potential dangers caused by connection problems. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a side view structural diagram of the present invention;

[0024] Figure 3 This is a schematic diagram of the riveting surface structure in this utility model.

[0025] In the diagram: 1. Cap; 2. Teeth; 3. Nut body; 4. Fixing post; 5. Sealing filler ring; 6. Shearing frustum; 7. Axial engagement pattern; 8. Riveting surface; 9. Battery tab; 10. Stepped slope. Detailed Implementation

[0026] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1-3As shown, an electrode sheet using a riveted nut includes a nut body 3 made of chromium-zirconium-copper alloy. A cap 1 is fixedly connected to the top of the nut body 3. The cap 1 and the nut body 3 are fixed by laser welding, with the welding area forming a continuous annular weld. A battery tab 9 is connected to the side of the cap 1 away from the nut body 3. The battery tab 9 has axial interlocking grooves 7, which are multiple evenly distributed V-shaped grooves. A toothed pattern 2 is connected to the end of the nut body 3 away from the cap 1. The surface of the toothed pattern 2 is plated with a silver layer, and the surface of the silver layer is covered with an anti-oxidation passivation film. A fixing post 4 is connected to one end of the nut body 3. The diameter of the fixing post 4 is larger than the outer diameter of the nut body 3. The surface of the fixing post 4 is provided with a spiral air guide groove. A sealing filler ring 5 is connected to the side of the fixing post 4 away from the spline 2. The sealing filler ring 5 is made of fluororubber. A shearing frustum 6 is provided on the side of the sealing filler ring 5 away from the fixing post 4. A riveting surface 8 is provided on the bottom end face of the nut body 3. A stepped inclined surface 10 is provided between the riveting surface 8 and the nut body 3. The stepped inclined surface 10 includes three levels of transition inclined surfaces. The first level of the inclined surface has an angle of 30 degrees, the second level has an angle of 45 degrees, and the third level has an angle of 60 degrees.

[0028] The working principle of this utility model: This rivet nut structure achieves efficient and reliable electrode plate connection through the innovative stepped riveting surface 8 design and the synergistic effect of multiple components. The fixing post 4, with its size larger than the outer diameter of the nut body 3, achieves precise self-centering when inserted into the pre-punched hole of the electrode plate. The spiral air guide groove discharges air between the electrode plate and the nut in the early stage of crimping, avoiding poor contact caused by air gaps. The silver-plated surface of the tooth 2 pre-punctures the oxide layer of the electrode plate to establish an initial conductive channel. The three-stage transition design of the stepped slope 10 achieves progressive crimping. The first stage allows the electrode plate material to begin plastic flow, eliminating assembly gaps and preparing for subsequent crimping. The second stage increases the pressure, and the third stage finally compacts the electrode plate, eliminating internal micropores. The three-stage transition design of the stepped slope 10 achieves progressive crimping, gradually eliminating assembly gaps and preparing for subsequent crimping, and finally compacting the electrode plate, ensuring the stability of the connection.

[0029] The shearing frustum 6 fractures preferentially under excessive pressure, protecting the electrode sheets from damage. The fluororubber sealing ring forms a protective seal after compression, and the laser-welded continuous annular weld ensures the airtightness of the cap 1. The shearing frustum 6 fractures preferentially under excessive pressure, thus protecting the electrode sheets from damage and improving connection safety. The fluororubber sealing ring forms a protective seal after compression, enhancing the connection's sealing performance and preventing interference from the external environment. The laser-welded continuous annular weld ensures the airtightness of the cap 1, improving the overall sealing performance of the structure. Compared with traditional structures, this design has significant advantages and perfectly solves the reliability, efficiency, and safety issues in new energy battery connections.

[0030] The above description details one embodiment of the present utility model, but it is merely a preferred embodiment and should not be construed as limiting the scope of the present utility model. All equivalent variations and improvements made within the scope of the present utility model application should still fall within the patent coverage of the present utility model.

Claims

1. A riveting nut assembly for an electrode sheet, comprising a nut body (3); characterized in that: A cap (1) is fixedly connected to the top of the nut body (3). A battery tab (9) is connected to the side of the cap (1) away from the nut body (3). An axial engagement groove (7) is provided on the battery tab (9). A toothed tooth (2) is connected to the end of the nut body (3) away from the cap (1). A fixing post (4) is connected to the end of the toothed tooth (2) away from the nut body (3). The diameter of the fixing post (4) is larger than the outer diameter of the nut body (3). A sealing filler ring (5) is connected to the side of the fixing post (4) away from the toothed tooth (2). A shearing frustum (6) is provided on the side of the sealing filler ring (5) away from the fixing post (4). A riveting surface (8) is provided on the bottom end face of the nut body (3). A stepped inclined surface (10) is provided between the riveting surface (8) and the nut body (3).

2. A clinch nut joint for an electrode segment as defined in claim 1, wherein The nut body (3) is made of chromium zirconium copper alloy.

3. A clinch nut joint for an electrode segment as defined in claim 1, wherein The cap (1) is fixed to the nut body (3) by laser welding.

4. A clinch nut joint for an electrode segment as defined in claim 2, wherein The cap (1) and the nut body (3) form a continuous annular weld.

5. A clinch nut joint for an electrode segment as defined in claim 1, wherein The axial interlocking pattern (7) consists of multiple evenly distributed V-shaped grooves.

6. A clinch nut joint for an electrode segment as defined in claim 1, wherein The surface of the flower teeth (2) is plated with a silver layer.

7. A clinch nut joint for an electrode segment as defined in claim 6, wherein The surface of the silver layer is covered with an anti-oxidation passivation film.

8. A clinch nut joint for an electrode segment as defined in claim 1, wherein The surface of the fixed column (4) is provided with a spiral air guide groove.

9. A clinch nut joint for an electrode segment as defined in claim 1, wherein The sealing filler ring (5) is made of fluororubber.

10. A clinch nut joint for an electrode segment as defined in claim 1, wherein The stepped inclined plane (10) includes three levels of transitional inclined planes, with the first level having an angle of 30 degrees, the second level having an angle of 45 degrees, and the third level having an angle of 60 degrees.

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