Conductive connection device and battery

Abstract

This utility model discloses a conductive connection device and a battery, including an electrode frame and a conductive block; a guide rail structure is provided on the inner side of the middle of the electrode frame; connecting hook structures matching the guide rail structure are provided on both sides of the conductive block; wherein, the guide rail structure and the connecting hook structure slide together, so that the electrode frame and the conductive block are slidably assembled and then pressed to form an integral structure. This utility model provides a power battery connecting electrode formed by slidingly assembling and pressing the electrode frame with a guide groove and the conductive block with a connecting groove and limiting recess, eliminating welding and machining, reducing costs and improving the versatility of parts.

Description

Technical Field

[0001] This utility model relates to the field of battery module design technology, and in particular to a conductive connection device and a battery. Background Technology

[0002] With the development of the new energy vehicle industry, battery technology, as its core driving force, has undergone significant progress and transformation. In particular, the continuous evolution of fast-charging technology has placed higher demands on the electrode design within battery modules. As a core component of the battery module, the electrode directly determines the battery's charging efficiency and cycle life. Therefore, improving the overcurrent capability of fast-charging batteries has become one of the key goals of current battery technology research and development.

[0003] Currently, there are two main methods in the industry for designing electrode sheets of unequal thickness: one is to use aluminum electrode sheets of the same material and obtain the required structure through stamping or machining. While this method can meet the requirements of fast charging to a certain extent, increasing the electrode thickness is usually necessary to improve the current carrying capacity of fast charging. This leads to a more complex electrode structure design and increases costs. The other method is to use copper-aluminum composite electrode sheets. Copper / aluminum parts are obtained through stamping, and then the electrode sheets of the two materials are welded together by laser welding or thermoforming. While this method can effectively improve the current carrying capacity of fast charging, it requires high precision equipment and has high technical requirements for assembly and welding processes, which may pose certain challenges in actual production.

[0004] In summary, existing technologies have certain limitations in electrode design, especially in how to balance cost and process complexity while improving fast charging capabilities, which remains an urgent problem to be solved. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology. In order to achieve the above purpose, a conductive connection device and a battery are adopted to solve the problems mentioned in the background technology.

[0006] A conductive connection device includes an electrode frame and a conductive block; The electrode frame is provided with a guide rail structure on the inner side of the middle part; The conductive block is provided with connecting hook structures on both sides that match the guide rail structure. The guide rail structure and the connecting hook structure slide together, so that the electrode frame and the conductive block are assembled by sliding and then pressed to form an integral structure.

[0007] As a further aspect of this invention: the connecting hook structure of the conductive block is provided with limiting recesses. During pressing and fixing, the material of the electrode frame will embed into the limiting recesses, forming a mechanical interlock, which greatly enhances the firmness and stability of the connection and prevents the conductive block from loosening or detaching from the electrode frame.

[0008] As a further embodiment of this invention, the guide rail structure is a triangular structure. The triangular structure provides more precise guidance and positioning, and a more stable fit, effectively preventing the conductive blocks from deflecting or misaligning during assembly, thus improving the success rate and efficiency of assembly.

[0009] As a further aspect of this invention, the electrode frame is a one-piece aluminum profile structure. Through one-piece extrusion molding, frames with consistent structures can be manufactured quickly and in large quantities, avoiding complex machining, significantly reducing production costs and improving production efficiency.

[0010] As a further aspect of this invention, the electrode frame is also provided with positioning holes and welding holes. This integration of positioning and welding functions makes the installation and positioning of the connecting electrode in the battery module and its connection to the cell terminals more convenient, accurate, and efficient, simplifying subsequent assembly processes.

[0011] As a further improvement of this invention, the positioning hole is adapted to the protrusions on the battery module integrated cover tray. This enables rapid and precise positioning and installation with the battery module, ensuring the correct position of the electrode plates within the module and improving the accuracy and efficiency of the entire battery pack assembly.

[0012] As a further improvement of this invention, the welding hole is matched to the size of the battery cell terminal. This ensures a reliable and efficient welding connection between the electrode and the battery cell terminal, reduces welding difficulty and process requirements, and ensures the stability and current carrying capacity of the electrical connection.

[0013] As a further aspect of this invention, the conductive block is made of a metallic conductive material, and its thickness is adjusted according to the overcurrent requirements of the battery module. This provides great design flexibility, allowing the current requirements of different battery module models to be met by replacing the conductive block with one of different materials (such as aluminum or copper) or of different thicknesses. This achieves component standardization and optimizes cost and performance.

[0014] As a further embodiment of this invention, the conductive block is manufactured by profile extrusion or stamping. Both of these are mature, efficient, and low-cost processing technologies, particularly suitable for mass production, which helps to further reduce the unit manufacturing cost of the conductive block.

[0015] As a further aspect of this invention: after the electrode frame and the conductive block are pressed and fixed, the material of the electrode frame is embedded in the limiting recess. This describes the final mechanical interlocking effect achieved by the pressing process, further emphasizing the reliability and robustness of this connection method, and ensuring the structural integrity of the electrode under harsh conditions such as long-term vibration.

[0016] The second aspect of the technical solution is a battery in which the cell is connected and fixed using a conductive connection device as described in any of the above-mentioned claims.

[0017] Compared with the prior art, the present invention has the following technical advantages: The above technical solution utilizes a connecting electrode device composed of an electrode frame and conductive blocks. The electrode frame has a guide rail structure on its inner side, and the conductive blocks have matching connecting hook structures and limiting recesses on both sides. The conductive blocks are slidably assembled along the guide groove of the electrode frame, and then tooling is used to press-fit the electrode frame material, deforming it and embedding it into the limiting recesses, thus achieving a secure fixation between the two. The advantages of this solution are: it eliminates traditional welding and machining processes, significantly reducing production costs; simultaneously, the modular design allows for flexible selection of the electrode frame and conductive blocks according to different current requirements, greatly improving the versatility of the parts and production efficiency. Attached Figure Description

[0018] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings: Figure 1 This is an exploded view of the electrode connection device according to an embodiment of this application; Figure 2 This is a schematic diagram of the battery module and electrode connection device according to an embodiment of this application; Figure 3 This is a schematic diagram of the overall structure of the electrode connection device according to an embodiment of this application; Figure 4 This is a schematic diagram of the electrode frame structure according to an embodiment of this application; Figure 5 This is a schematic diagram of the conductive block structure according to an embodiment of this application; Figure 6 This is a side view of the electrode frame according to an embodiment of this application; Figure 7 This is a side view of a conductive block according to an embodiment of this application.

[0019] In the diagram: 1. Battery module; 2. Connecting electrode device; 3. Electrode frame; 4. Conductive block; 5. Welding hole; 6. Positioning hole; 7. Guide rail structure; 8. Connecting hook structure; 9. Limiting recess. Detailed Implementation

[0020] 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 protection scope of the present utility model.

[0021] Please refer to Figure 1 In this embodiment of the present invention, a conductive connection device includes an electrode frame 3 and a conductive block 4; The electrode frame 3 is provided with guide rail structures 7 on both sides; The conductive block 4 is provided with connecting hook structures 8 on both sides that match the guide rail structure 7; The guide rail structure 7 and the connecting hook structure 8 are slidably engaged, so that the electrode frame 3 and the conductive block 4 are slidably assembled and then pressed and fixed to form an integral structure, forming the connecting electrode device 2.

[0022] like Figure 2 As shown, the diagram is a structural schematic of the battery module and the connecting electrode device; In this embodiment, the connecting hook structure 8 of the guide rail structure 7 and the conductive block 4 adopts a sliding clearance fit. The connecting structure of the conductive block 4 and the guide rail structure 7 of the electrode frame 3 are installed from the side. First, an inward installation force is applied to the conductive block 4, and the connecting hook structure 8 of the conductive block 4 moves inward along the guide rail structure 7 of the frame. When the conductive block 4 is flush with both sides of the electrode frame 3, as... Figure 2 As shown, the electrode frame 3 and guide rail structure 7 are pressed together from top to bottom using a crimping tool. The material of the guide rail structure 7 is deformed and compressed into the limiting recess 9 of the conductive block 4 under force, thus completing the crimping and fixing. The electrode frame 3 and the conductive block 4 form a whole.

[0023] like Figure 3 As shown, the diagram is a schematic diagram of the overall structure of the electrode connection device; Specifically, the working principle of the sliding connection between the electrode frame 3 and the conductive block 4 is as follows: The connecting electrode frame 3 is equipped with a guide rail structure 7, which can be modified into a triangular, square, or other structure according to actual needs. The conductive block 4 has connecting hook structures 8 on both sides that match the guide rail structure 7, and the connecting hook structures 8 have multiple limiting recesses 9. The connecting hook structures 8 of the conductive block 4 are slidably assembled through the guide rail structure 7 of the connecting electrode frame 3, and then pressed onto the electrode frame 3 using a tooling. The electrode frame 3 deforms under stress, and the material embeds into the limiting recesses 9 on the connecting hook structures 8 of the conductive block 4, thus forming the electrode.

[0024] In this embodiment, the connecting hook structure 8 of the conductive block 4 is provided with a limiting recess 9.

[0025] In this embodiment, the guide rail structure 7 is a triangular structure.

[0026] like Figure 4 As shown, the diagram is a schematic diagram of the electrode frame structure; In this embodiment, the electrode frame 3 is an integrally formed aluminum profile structure. The electrode frame 3 can be connected by the forming method of the profile. The thickness of the electrode frame can be designed according to the overcurrent requirements of the module current.

[0027] In this embodiment, the electrode frame 3 is also provided with positioning holes 6 and welding holes 5.

[0028] In this embodiment, the positioning hole 6 is adapted to the protrusion of the integrated cover tray of the battery module 1.

[0029] In this embodiment, the welding hole 5 is matched with the size of the battery cell electrode post.

[0030] like Figure 5 As shown, the diagram is a schematic diagram of the conductive block structure; In this embodiment, the conductive block 4 is made of a metal conductive material, and the thickness of the conductive block 4 is adjusted according to the overcurrent requirements of the battery module 1. The conductive block 4 is made by profile extrusion or stamping.

[0031] Specifically, the conductive block 4 can also be made of aluminum, copper or other conductive materials according to the current requirements of the battery module 1. The thickness of the conductive block 4 can also be adjusted to improve the current carrying capacity of the module.

[0032] like Figure 6 As shown, the diagram is a side view of the electrode frame; like Figure 7 As shown, the diagram is a side view of the conductive block. In this embodiment, after the electrode frame 3 and the conductive block 4 are pressed and fixed, the material of the electrode frame 3 is embedded in the limiting recess 9.

[0033] Among them, the conductive block 4 is formed into a convex structure by profile extrusion molding and a concave point limit by stamping and cutting. The connecting hook structure 8 of the conductive block 4 is characterized by a triangular structure that matches the guide rail structure 7 of the electrode frame 3. The electrode frame 3 can be integrally formed by extruding aluminum profiles to form a concave guide rail structure 7. The mating position of the electrode frame 3 and the guide block can be formed into a triangular guide groove by a mold. The positioning holes 6 and welding holes 5 on both sides of the electrode frame 3 can be completed by stamping.

[0034] Specifically, it is not limited to any particular material or structural form of the combination of electrode frame 3 and conductive block 4. As long as the guiding structure of electrode frame 3 and the connection structure of conductive block 4 are compatible, they can be combined and installed. Appropriate electrode frame 3 and conductive block 4 can be flexibly matched according to the overcurrent requirements of different battery modules 1.

[0035] The second aspect of the technical solution is a battery in which the cell is connected and fixed using a conductive connection device as described in any of the above-mentioned claims.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An electrically conductive connecting device, characterized in that It includes an electrode frame (3) and a conductive block (4); The electrode frame (3) is provided with a guide rail structure (7) on the inner side of the middle part. The conductive block (4) has connecting hook structures (8) on both sides that match the guide rail structure (7). The guide rail structure (7) and the connecting hook structure (8) are slidably engaged, so that the electrode frame (3) and the conductive block (4) are slidably assembled and then pressed to form an integral structure.

2. An electrically conductive connecting device according to claim 1, characterized in that The conductive block (4) has a limiting recess (9) on its connecting hook structure (8).

3. The electrically conductive connecting device of claim 1, wherein The guide rail structure (7) is a triangular structure.

4. The electrically conductive connecting device of claim 1, wherein The electrode frame (3) is an integrally formed aluminum profile structure.

5. The conductive connection device according to claim 4, characterized in that, The electrode frame (3) is also provided with positioning holes (6) and welding holes (5).

6. An electrically conductive connecting device according to claim 5, characterized in that The positioning hole (6) is adapted to the protrusion of the integrated cover tray of the battery module (1).

7. The electrically conductive connecting device of claim 5, wherein The welding hole (5) is matched with the size of the cell electrode post.

8. The electrically conductive connecting device of claim 2, wherein The conductive block (4) is made of a metal conductive material, and the thickness of the conductive block (4) is adjusted according to the overcurrent requirements of the battery module (1).

9. An electrically conductive connecting device according to claim 8, characterized in that The conductive block (4) is made by profile extrusion or stamping. After the electrode frame (3) is pressed and fixed to the conductive block (4), the material of the electrode frame (3) is embedded in the limiting recess (9).

10. A battery, characterized by The battery cell is connected and fixed using a conductive connection device as described in any one of claims 1 to 9.

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