New energy automobile battery wiring terminal stabilizing and fixing device
By designing a stable fixing device for the battery terminals of new energy vehicles, and utilizing a positioning arc plate and a locking block structure, the problem of increased contact resistance caused by wear at the contact points was solved, enabling rapid replacement of the elastic cantilever and stability of the electrical connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU SHENJI ELECTRONICS TECH
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-19
AI Technical Summary
The contact parts of the existing new energy vehicle battery terminals are prone to wear under frequent plugging and unplugging and vibration environments, resulting in increased contact resistance. Furthermore, the elastic plate and elastic cantilever are difficult to disassemble and replace due to the rivet connection.
A stable fixing device is designed, which includes components such as a first contact body, an elastic positioning plate, an elastic cantilever, a second contact body, and a press-fit nut. Through the cooperation of the positioning arc plate and the positioning block, the elastic positioning plate can be quickly installed and removed, and the worn elastic cantilever can be easily replaced.
It enables quick disassembly and replacement when the elastic cantilever wears out, reducing operating costs and ensuring the stability and durability of electrical connections.
Smart Images
Figure CN224264206U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery terminal technology, and in particular to a stable fixing device for battery terminals of new energy vehicles. Background Technology
[0002] New energy vehicle battery terminals are sheet-like electrical connection components. Specifically, they are key components in new energy vehicle battery systems used to connect battery modules, battery management systems (BMS), and external circuits. Their function is to achieve electrical connection, signal transmission, and current conduction, ensuring the normal operation and safety of the battery system.
[0003] In existing technologies, conventional terminal blocks typically use rivets to connect the elastic plate and the elastic cantilever as a single unit, ensuring a secure connection that is not easily loosened. The elastic cantilever then clamps the pin for connection. However, frequent plugging and unplugging operations can lead to wear on the contact points. Furthermore, under the vibration environment of daily use, the contact points will experience fretting wear, resulting in damage to the contact surface, increased contact resistance, and even open circuits. Since the connection is made with rivets, removing the rivets is generally difficult, requiring methods such as cutting or drilling. Therefore, it is difficult to separate the elastic plate and the elastic cantilever, making it impossible to replace the elastic cantilever and causing inconvenience in use. Thus, there is a need to improve the stabilizing and fixing device for the terminal blocks of new energy vehicle batteries to solve the above problems. Utility Model Content
[0004] To overcome the problem of increased resistance caused by wear and damage at the contact points, but which makes it difficult to disassemble and replace the elastic plate and elastic cantilever by using rivets.
[0005] The technical solution of this utility model is as follows: a stabilizing and fixing device for battery terminals of new energy vehicles, including a first contact body and an elastic positioning plate. The elastic positioning plate is disposed on the first contact body. An elastic cantilever is fixedly connected to the left side of the first contact body. A rivet is disposed on the first contact body. A second contact body is fixedly connected to the right side of the first contact body. A press nut is disposed on the second contact body. An elastic pressure plate for pressing the elastic cantilever is fixedly connected to the left side of the elastic positioning plate. A positioning arc plate for positioning the elastic positioning plate is fixedly connected to the outside of the first contact body. A limit shell is fixedly connected to the outside of the first contact body. A sliding shell is slidably connected to the limit shell. A positioning block for positioning the elastic positioning plate in conjunction with the positioning arc plate is slidably connected to the sliding shell.
[0006] Preferably, there are two of each of the first contact body, the elastic cantilever, and the second contact body, with the pin body held between the two elastic cantilever and the rivet fixedly connected between the two first contact bodies.
[0007] Preferably, the two second contact bodies have countersunk holes and through holes respectively at the corresponding positions of the rivet nut, and the rivet nut is disposed inside the countersunk hole and the through hole.
[0008] Preferably, two elastic positioning plates and two elastic pressure plates are provided, and the elastic positioning plates and elastic pressure plates are adapted to the first contact body and the elastic cantilever, and the two elastic positioning plates and elastic pressure plates are respectively attached to the outside of the two first contact bodies and the elastic cantilever.
[0009] Preferably, a buckle is fixedly connected to the elastic pressure plate, a connecting plate is rotatably connected to the sliding shell, a threaded rod is fixedly connected to the top of the connecting plate, the threaded rod is threadedly connected to the limiting shell, a rotating block is fixedly connected to the top of the threaded rod, a limiting slide is fixedly connected to the outside of the positioning block, the limiting slide is slidably connected to the sliding shell, and a spring is fixedly connected between the limiting slide and the sliding shell to automatically reset the positioning block.
[0010] Preferably, the sliding shell has a limiting groove at the corresponding position of the limiting slide, and the limiting slide slides inside the limiting groove.
[0011] Preferably, the rotating block is hexagonal in shape and has a cross groove.
[0012] The beneficial effects of this utility model are as follows: the position of the elastic positioning plate can be quickly installed and removed by the cooperation of the positioning arc plate and the positioning block. When the elastic cantilever is severely worn, the elastic positioning plate and the elastic pressure plate can be removed, and then a new elastic cantilever can be replaced. The elastic pressure plate can then be reused, saving the cost of use. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of one embodiment of the new energy vehicle battery terminal stabilization and fixing device of this utility model;
[0014] Figure 2 for Figure 1 Schematic diagram of the separation structure between the intermediate elastic positioning plate and the first contact body;
[0015] Figure 3 This is a schematic cross-sectional view of the limiting shell structure of this utility model;
[0016] Figure 4 This is a schematic cross-sectional view of the sliding shell structure of this utility model;
[0017] Figure 5 for Figure 1 Schematic diagram of cross-sectional structure of medium-pressure rivet nut.
[0018] Explanation of reference numerals in the attached drawings: 1. First contact body; 21. Elastic positioning plate; 22. Elastic pressure plate; 23. Positioning arc plate; 24. Limiting shell; 25. Sliding shell; 26. Positioning block; 27. Buckle; 28. Connecting disc; 29. Threaded rod; 210. Rotating block; 211. Limiting slide plate; 212. Spring; 3. Elastic cantilever; 4. Rivet; 5. Second contact body; 6. Press-fit nut; 7. Pin body. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Please see Figures 1-5 This utility model provides an embodiment of a new energy vehicle battery terminal stabilization and fixing device, including a first contact body 1 and an elastic positioning plate 21. The elastic positioning plate 21 is disposed on the first contact body 1. An elastic cantilever 3 is fixedly connected to the left side of the first contact body 1. A rivet 4 is disposed on the first contact body 1. A second contact body 5 is fixedly connected to the right side of the first contact body 1. A rivet nut 6 is disposed on the second contact body 5. An elastic pressure plate 22 that presses against the elastic cantilever 3 is fixedly connected to the left side of the elastic positioning plate 21. A positioning arc plate 23 that positions the elastic positioning plate 21 is fixedly connected to the outer side of the first contact body 1. A limiting shell 24 is fixedly connected to the outer side of the first contact body 1. A sliding shell 25 is slidably connected to the limiting shell 24. A positioning arc plate 23 that matches the positioning arc plate 23 is slidably connected to the sliding shell 25. The positioning block 26 of the elastic positioning plate 21 securely connects the two first contact bodies 1 with rivets 4, thereby positioning the second contact body 5 with the elastic cantilever 3. Then, the press nut 6 is placed between the two second contact bodies 5. First, the elastic positioning plate 21 is tilted and clamped inside the positioning arc plate 23. Then, it is rotated with the contact point between the elastic positioning plate 21 and the positioning arc plate 23 as the center, so that the elastic positioning plate 21 fits against the first contact body 1. The positioning block 26 presses on the surface of the elastic positioning plate 21, thereby positioning the elastic positioning plate 21 in conjunction with the positioning arc plate 23. The elastic positioning plate 21 positions the elastic pressure plate 22, ensuring the stability of the elastic positioning plate 21 and the elastic pressure plate 22 while allowing the elastic positioning plate 21 to be disassembled in time. The elastic pressure plate 22, together with the elastic cantilever 3, can be clamped on the outside of the pin body 7.
[0021] Please see Figure 1 , Figure 2 , Figure 5In this embodiment, two of each of the first contact body 1, elastic cantilever 3, and second contact body 5 are provided, and the pin body 7 is held between the two elastic cantilever 3. The rivet 4 is fixedly connected between the two first contact bodies 1. The connection of the first contact body 1, elastic cantilever 3, and second contact body 5 through the rivet 4 is more stable, the position is accurate, and there will be no tilting phenomenon. The two second contact bodies 5 have countersunk holes and through holes respectively at the corresponding positions of the rivet nut 6, and the rivet nut 6 is set inside the countersunk hole and the through hole, so that one end of the rivet nut 6 can be inserted into the countersunk hole, thereby allowing the end of the rivet nut 6 inserted into the countersunk hole to be inserted into the countersunk hole. The end has no obvious protrusion on the surface of the second contact body 5 to facilitate subsequent assembly. Two elastic positioning plates 21 and two elastic pressure plates 22 are respectively provided, and the elastic positioning plates 21 and elastic pressure plates 22 are adapted to the first contact body 1 and the elastic cantilever 3. The two elastic positioning plates 21 and elastic pressure plates 22 are respectively attached to the outer side of the two first contact bodies 1 and the elastic cantilever 3. The elastic pressure plate 22 is attached to the elastic cantilever 3 and applies pressure to the elastic cantilever 3. The elastic pressure plate 22 cooperates with the elastic cantilever 3 and both are elastic structures, which can ensure the stable operation of the high voltage terminal and ensure the stability of the electrical connection when the car is under severe vibration.
[0022] Please see Figures 1-4 In this embodiment, a buckle 27 is fixedly connected to the elastic pressure plate 22, a connecting plate 28 is rotatably connected to the sliding shell 25, a threaded rod 29 is fixedly connected to the top of the connecting plate 28, the threaded rod 29 is threadedly connected to the limiting shell 24, a rotating block 210 is fixedly connected to the top of the threaded rod 29, a limiting slide plate 211 is fixedly connected to the outer side of the positioning block 26, the limiting slide plate 211 is slidably connected to the sliding shell 25, and a spring 212 is fixedly connected between the limiting slide plate 211 and the sliding shell 25 to automatically reset the positioning block 26. Rotating the rotating block 210 can raise the position of the positioning block 26. When the elastic cantilever 3 needs to be replaced due to wear, The elastic positioning plate 21 can be quickly disassembled, which is convenient and improves work efficiency. The sliding shell 25 has a limit groove at the corresponding position of the limit slide plate 211, and the limit slide plate 211 slides inside the limit groove. The limit groove limits the limit slide plate 211, so that the limit slide plate 211 slides in a straight line to avoid tilting, thereby driving the positioning block 26 to move smoothly and positioning the position of the positioning block 26. The rotating block 210 is hexagonal and has a cross groove. The hexagonal rotating block 210 can be turned by a wrench, and the cross groove design can be turned by a screwdriver, which can be operated with multiple tools and is convenient to use.
[0023] During operation, the first contact body 1 is connected together by rivets 4. The rivets 4 ensure the accurate positioning of the first contact body 1 and prevent tilting. The first contact body 1 is fixed, thus positioning the elastic cantilever 3 and the second contact body 5. The rivet nut 6 is placed between the two second contact bodies 5. The rotating block 210 is rotated by a wrench or screwdriver or other suitable tool. The rotating block 210 drives the threaded rod 29, which rotates and rises. This drives the connecting plate 28, which in turn drives the sliding shell 25. The sliding shell 25 then drives the positioning block 26 to rise, and finally, the elastic pressure plate 22 and the elastic positioning plate 21 are lifted. The elastic positioning plate 21 can be tilted and removed from between the positioning block 26 and the positioning arc plate 23. During installation, the elastic positioning plate 21 is first inserted into the positioning arc plate 23. Then, the elastic positioning plate 21 presses against the positioning block 26, which causes the positioning block 26 to slide and compress the spring 212. Once the elastic positioning plate 21 passes through the position of the positioning block 26, the spring 212 resets the positioning block 26 and the positioning arc plate 23. Then, the rotating block 210 can be rotated to lower the sliding shell 25. The positioning block 26 presses against the surface of the elastic positioning plate 21, thus positioning the elastic positioning plate 21 in conjunction with the positioning arc plate 23.
[0024] Through the above steps, when the elastic cantilever 3 is severely worn, the elastic positioning plate 21 and the elastic pressure plate 22 can be disassembled, and a new elastic cantilever 3 can be replaced. The elastic pressure plate 22 can then be reused to solve the problem that the resistance increases due to wear and damage at the contact points. However, it is difficult to disassemble and replace the elastic plate and the elastic cantilever through the connection of rivets.
Claims
1. A stabilizing and fixing device for battery terminals of new energy vehicles, comprising a first contact body (1), characterized in that: It also includes an elastic positioning plate (21), which is set on the first contact body (1). An elastic cantilever (3) is fixedly connected to the left side of the first contact body (1). A rivet (4) is set on the first contact body (1). A second contact body (5) is fixedly connected to the right side of the first contact body (1). A press nut (6) is set on the second contact body (5). An elastic pressure plate (22) that presses the elastic cantilever (3) is fixedly connected to the left side of the elastic positioning plate (21). A positioning arc plate (23) that positions the elastic positioning plate (21) is fixedly connected to the outside of the first contact body (1). A limiting shell (24) is fixedly connected to the outside of the first contact body (1). A sliding shell (25) is slidably connected to the limiting shell (24). A positioning block (26) that cooperates with the positioning arc plate (23) to position the elastic positioning plate (21) is slidably connected to the sliding shell (25).
2. The new energy vehicle battery terminal stabilization and fixing device according to claim 1, characterized in that: Two first contact bodies (1), two elastic cantilever arms (3), and two second contact bodies (5) are provided, and the pin body (7) is held between the two elastic cantilever arms (3), and the rivet (4) is fixedly connected between the two first contact bodies (1).
3. The new energy vehicle battery terminal stabilization and fixing device according to claim 2, characterized in that: The two second contact bodies (5) have countersunk holes and through holes respectively at the corresponding positions of the press nut (6), and the press nut (6) is set inside the countersunk hole and the through hole.
4. The new energy vehicle battery terminal stabilization and fixing device according to claim 3, characterized in that: Two elastic positioning plates (21) and two elastic pressure plates (22) are provided respectively, and the elastic positioning plates (21) and elastic pressure plates (22) are adapted to the first contact body (1) and elastic cantilever (3), and the two elastic positioning plates (21) and elastic pressure plates (22) are respectively attached to the outside of the two first contact bodies (1) and elastic cantilever (3).
5. The new energy vehicle battery terminal stabilization and fixing device according to claim 4, characterized in that: A buckle (27) is fixedly connected to the elastic pressure plate (22), a connecting plate (28) is rotatably connected to the sliding shell (25), a threaded rod (29) is fixedly connected to the top of the connecting plate (28), the threaded rod (29) is threadedly connected to the limiting shell (24), a rotating block (210) is fixedly connected to the top of the threaded rod (29), a limiting slide plate (211) is fixedly connected to the outside of the positioning block (26), the limiting slide plate (211) is slidably connected to the sliding shell (25), and a spring (212) is fixedly connected between the limiting slide plate (211) and the sliding shell (25) to automatically reset the positioning block (26).
6. The new energy vehicle battery terminal stabilization and fixing device according to claim 5, characterized in that: The sliding shell (25) has a limiting groove at the corresponding position of the limiting slide plate (211), and the limiting slide plate (211) slides inside the limiting groove.
7. The new energy vehicle battery terminal stabilization and fixing device according to claim 6, characterized in that: The rotating block (210) is hexagonal in shape and has a cross groove.