A copper-based automotive battery terminal
By designing copper-based bridging terminals and using plug-in boards and sockets to form a parallel structure, the problem of numerous wiring terminals in new energy vehicle battery packs is solved, achieving the effects of simplified wiring and improved charging efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANGSHAN HONGQIANG ELECTRIC MFG CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-24
AI Technical Summary
Existing battery packs for new energy vehicles require multiple terminals, resulting in numerous wiring inside the battery compartment and making installation and disassembly complex.
A copper-based bridging terminal is designed, which forms a parallel structure through a plug-in plate and a mating sleeve. It is fixed to the electrode plate by a connector, reducing the number of connectors and achieving a stable connection of the electrode plate.
The wiring inside the battery compartment has been simplified, reducing the difficulty of disassembly and assembly, and improving the charging efficiency and stability of the battery pack.
Smart Images

Figure CN224554647U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electrical connector technology, and more particularly to a copper-based automotive battery terminal block. Background Technology
[0002] To improve the range of new energy vehicles, the car's battery usually consists of multiple battery packs, each of which requires an independent terminal to be connected to the power supply bus. This makes the wiring inside the battery compartment quite complicated, and installation and removal are quite troublesome. Summary of the Invention
[0003] The purpose of this application is to provide a copper-based automotive battery terminal block that is easier to install and remove and allows for simpler wiring.
[0004] To achieve the above objectives, this application provides a copper-based automotive battery terminal block, also known as a bridging terminal, suitable for electrically connecting several battery packs. The battery packs have electrode plates on their sides. The bridging terminal includes a plug plate, one end of which is fixedly connected to a mating sleeve. The mating sleeve has a side slot on its side facing away from the plug plate, suitable for mating with the plug plates of other bridging terminals. The mating sleeve has a front slot on its side parallel to the mating direction of the side slot, suitable for inserting the electrode plates. The bridging terminal is suitable for fixed connection with the electrode plates via connectors. Since the bridging terminals can constrain each other, the number of connectors can be very small, effectively reducing the complexity of disassembly and assembly.
[0005] As a preferred embodiment, the positive slot is connected to the side slot, and the positive slot is located above the side slot, which allows the electrode plate to make close contact with the plug plate to achieve conductivity.
[0006] As a preferred embodiment, the upper surface of the fitting sleeve has an upper through hole communicating with the positive slot, and the lower surface of the fitting sleeve has a lower through hole communicating with the side slot, with the upper through hole and the lower through hole aligned.
[0007] As a preferred embodiment, the electrode sheet has anti-slip holes, and the plug plate has a central through hole. Both the anti-slip holes and the central through hole are adapted to be aligned with the upper through hole and the lower through hole, so as to facilitate the passage of the connector.
[0008] As a preferred embodiment, the anti-slip hole is adapted to be aligned with the central through hole, and then aligned with the upper through hole and the lower through hole so that the connector can pass through, constraining the position between the bridging terminals and between the electrode plates.
[0009] As a preferred embodiment, the connector includes a limiting pin adapted to pass through the upper through hole, the anti-crossing hole, the middle through hole, and the lower through hole simultaneously, thereby suppressing cross-movement between the bridging terminals and between the bridging terminals and the electrode plates.
[0010] As a preferred embodiment, the limiting pin has pressure rings at both ends to prevent the limiting rings from disengaging from the through hole.
[0011] As a preferred embodiment, the connector only mates with the electrode plates of the battery pack at both ends, and the bridging terminal in the middle does not require additional constraints to maintain a stable connection.
[0012] Compared with the prior art, the beneficial effects of this application are as follows:
[0013] (1) By designing a strip-shaped bridging terminal structure that can be formed by mutual cooperation, after being matched with the electrode sheet of the same polarity of the battery pack, only the bridging terminals at both ends need to be fixed, and the bridging terminal in the middle can be kept stable, effectively reducing the number of connectors used, thereby reducing the difficulty of disassembling and assembling the electrode terminals.
[0014] (2) Since the strip conductive structure formed by the bridging terminals is connected in parallel to the battery pack, it is not necessary to connect each terminal to conduction, which greatly reduces the number of lines and makes the wiring in the battery compartment simpler, clearer and easier to configure. Attached Figure Description
[0015] Figure 1 This is a three-dimensional schematic diagram of the first structure of the copper-based automotive battery, showing the connection between the terminal block and the electrode plate.
[0016] Figure 2 This is a schematic diagram of the second three-dimensional structure of the copper-based automotive battery, showing the connection between the terminals and the electrode plates.
[0017] Figure 3 This is a three-dimensional structural diagram of the bridging state of the terminals of the copper-based automotive battery.
[0018] Figure 4 This is a three-dimensional cross-sectional view of the bridging state of the terminals of the copper-based automotive battery.
[0019] Figure 5 This is a first three-dimensional structural diagram of the independent state of the terminals of the copper-based automotive battery.
[0020] Figure 6 This is a second three-dimensional structural cross-sectional view of the independent state of the copper-based automotive battery terminal block.
[0021] Figure 7 This is a three-dimensional sectional view of the independent state of the terminals of the copper-based automotive battery.
[0022] Figure 8 This is a three-dimensional structural diagram of the connector for the copper-based automotive battery terminal block.
[0023] In the diagram: 1. Battery pack; 101. Electrode plate; 102. Anti-crossing hole; 2. Bridging terminal; 210. Connector plate; 211. Through hole; 220. Socket sleeve; 221. Front slot; 222. Side slot; 223. Top through hole; 224. Bottom through hole; 3. Connector; 301. Limit pin; 302. Wire clamping ring. Detailed Implementation
[0024] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0025] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.
[0026] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0027] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.
[0028] like Figure 1-8The copper-based automotive battery terminal shown is also called a bridge terminal 2 because it can be continuously spliced to form a bridge-shaped energizing structure. It is used to electrically connect several battery packs 1 to form a parallel circuit, which can effectively improve the charging efficiency of a single battery pack 1. The battery pack 1 has flat electrode plates 101 on its side. There are usually two electrode plates 101 on the side of the battery pack 1, one as the positive terminal and the other as the negative terminal. It should be noted that when installing the battery pack 1, the electrode plate 1 used as the positive terminal should be aligned with the correct electrode. 01 Keep them in the same plane, keep the electrode plate 101, which is the negative electrode, in the same plane, so that the terminal can be installed easily. The bridging terminal 2 includes a flat plug plate 210. One end of the plug plate 210 is fixedly connected to a mating sleeve 220. The mating sleeve 220 is hollow, but its thickness is significantly greater than that of the plug plate 210. The mating sleeve 220 has a side slot 222 on the side facing away from the plug plate 210 for mating with the plug plates 210 of other bridging terminals 2, as a quick splicing and mating structure.
[0029] The mating sleeve 220 has a positive slot 221 on the side of the mating plate 210 and the side slot 222 that is parallel to the mating direction, for inserting the electrode piece 101. Since the positive slot 221 is connected to the side slot 222, the electrode piece 101 can directly contact the mating plate 210 to conduct electricity. Normally, the positive slot 221 is located above the side slot 222, that is, the electrode piece 101 inside the fully mating bridge terminal 2 is stacked on top of the mating plate 210.
[0030] The bridging terminal 2 can be fixedly connected to the electrode plate 101 through the connector 3. The connector 3 only cooperates with the electrode plates 101 of the battery pack 1 at both ends. That is to say, the spliced bridging terminal 2 only needs to be fixed to the electrode plates 101 at both ends through the connector 3. Since the battery pack 1 of the car itself is fixed, after the bridging terminals 2 at both ends are fixed, the other bridging terminals 2 in the middle can be constrained and maintain stable cooperation. The upper surface of the fitting sleeve 220 is provided with an upper through hole 223 communicating with the positive slot 221, and the lower surface of the fitting sleeve 220 is provided with a lower through hole 224 communicating with the side slot 222. The relative positions of the upper through hole 223 and the lower through hole 224 remain unchanged and are always aligned.
[0031] The electrode plate 101 has an anti-slip hole 102, and the plug plate 210 has a through hole 211. Both the anti-slip hole 102 and the through hole 211 can be aligned with the upper through hole 223 and the lower through hole 224, so the anti-slip hole 102 can also be aligned with the through hole 211. When aligned with the upper through hole 223 and the lower through hole 224 at the same time, the connector 3 can pass through. The connector 3 includes a cylindrical limiting pin 301. The limiting pin 301 can pass through the upper through hole 223, the anti-slip hole 102, the through hole 211 and the lower through hole 224 at the same time, thereby restricting the movement between the bridging terminals 2 and between the bridging terminals 2 and the electrode plate 101. The two ends of the limiting pin 301 have wire pressing rings 302, which can press the external wires onto the upper or lower surface of the plug sleeve 220.
[0032] Working principle: In use, first determine the number of electrode plates 101 as positive and negative terminals based on the number of battery packs 1. Then determine the number of bridging terminals 2 based on the number of electrode plates 101. These bridging terminals 2 are divided into two equal groups and spliced to form two wiring terminals. After confirming that the battery pack 1 has been fixed, insert one wiring terminal into all the electrode plates 101 as positive terminals; insert the other wiring terminal into all the electrode plates 101 as negative terminals. Then connect the bridging terminals 2 at both ends of the two wiring terminals with external wires through connectors 3 and fix them together. Since the bridging terminals 2 are mutually connected and constrained, and the insertion sleeve 220 is constrained by the electrode plates 101, only four connectors 3 are needed to achieve the installation constraint of all wiring terminals and maintain stability well.
[0033] The pressure rings 302 at both ends of the limit pin 301 can be nuts, which facilitates disassembly and assembly for later maintenance and replacement; the pressure rings 302 can also be stamped and formed into one piece with the limit pin 301, which can prevent users from disassembling and assembling at will, and has higher and more durable stability.
[0034] The battery pack 1 connected by the bridging terminal 2 is in parallel structure. Compared with the series structure, the battery assembly has a smaller internal resistance, which can discharge to the outside more efficiently. At the same time, the outside can charge the battery pack 1 more quickly, providing a more favorable bridge for the high-power charging and discharging of the battery.
[0035] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.
Claims
1. A copper-based automotive battery terminal block, also known as a bridging terminal (2), characterized in that: Suitable for electrically connecting several battery packs (1), the battery packs (1) having electrode plates (101) on their sides, the bridging terminal (2) including a plug plate (210), one end of the plug plate (210) being fixedly connected to a fitting sleeve (220), the fitting sleeve (220) having a side slot (222) on the side facing away from the plug plate (210) for fitting into the plug plates (210) of other bridging terminals (2), the fitting sleeve (220) having a front slot (221) on the side parallel to the fitting direction of the plug plate (210) and the side slot (222) for inserting the electrode plate (101), the bridging terminal (2) being suitable for fixed connection to the electrode plate (101) via a connector (3).
2. The copper-based automotive battery terminal block as described in claim 1, characterized in that: The positive slot (221) is connected to the side slot (222), and the positive slot (221) is located above the side slot (222).
3. The copper-based automotive battery terminal block as described in claim 2, characterized in that: The upper surface of the fitting sleeve (220) is provided with an upper through hole (223) communicating with the positive slot (221), and the lower surface of the fitting sleeve (220) is provided with a lower through hole (224) communicating with the side slot (222). The upper through hole (223) and the lower through hole (224) are aligned.
4. The copper-based automotive battery terminal block as described in claim 3, characterized in that: The electrode plate (101) has an anti-slip hole (102), and the plug plate (210) has a central through hole (211). The anti-slip hole (102) and the central through hole (211) are both adapted to be aligned with the upper through hole (223) and the lower through hole (224).
5. The copper-based automotive battery terminal block as described in claim 4, characterized in that: The anti-slip hole (102) is adapted to be aligned with the central through hole (211), and then aligned with the upper through hole (223) and the lower through hole (224) so that the connector (3) can pass through.
6. The copper-based automotive battery terminal block as described in claim 5, characterized in that: The connector (3) includes a limiting pin (301) which is adapted to pass through the upper through hole (223), the anti-slip hole (102), the middle through hole (211) and the lower through hole (224) simultaneously.
7. The copper-based automotive battery terminal block as described in claim 6, characterized in that: The limiting pin (301) has pressure rings (302) at both ends.
8. The copper-based automotive battery terminal block as described in any one of claims 1 to 7, characterized in that: The connector (3) only engages with the electrode plates (101) of the battery pack (1) located at both ends.