A multi-in-one low-voltage direct-current positive copper bar
Patent Information
- Application Number
- CN202521450945.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-11
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-07-11
AI Technical Summary
[0003]传统电机接线座多采用多根独立导线或分散铜排进行正极连接,不仅需要繁琐的搭线操作,还存在布局杂乱、占用空间大的问题,难以适配新能源汽车紧凑的舱体设计
[0013] Compared with the prior art, this utility model provides an all-in-one low-voltage DC positive copper busbar, which has the following beneficial effects:
Smart Images

Figure CN224759151U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of terminal block technology, specifically a multi-in-one low-voltage DC positive copper busbar. Background Technology
[0002] In the motor system of new energy vehicles, the circuit connection of the terminal block is a key link to ensure stable power transmission.
[0003] Traditional motor terminal blocks often use multiple independent wires or scattered copper busbars for positive terminal connection, which not only requires cumbersome wiring operations, but also has the problems of messy layout and large space occupation, making it difficult to adapt to the compact cabin design of new energy vehicles. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides an all-in-one low-voltage DC positive copper busbar.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-functional low-voltage DC positive copper busbar, characterized in that: it includes a main body of the busbar, on both sides of the main body of the busbar a first bent plate and a second bent plate are symmetrically arranged, the lower end of the first bent plate is provided with a first terminal plate, the first terminal plate is provided with a press-fit nut, the lower end of the main body of the busbar is provided with a second terminal plate, the second terminal plate is provided with a steel ring and a first connecting hole, the bottom end of the second bent plate is provided with a third terminal plate, the third terminal plate is provided with a plurality of second connecting holes.
[0008] Furthermore, an improvement of this utility model is that the main body of the terminal block, the first bent plate, the first terminal board, the second terminal board, the second bent plate, and the third terminal board are integrated into one structure.
[0009] Furthermore, an improvement of this utility model is that the main body of the terminal block, the first bent plate, the first terminal board, the second terminal board, the second bent plate, and the third terminal board are made of T2 copper.
[0010] Furthermore, an improvement of this utility model is that the surface of the structure is coated with matte tin, and the thickness of the matte tin coating is 2 to 10 μm.
[0011] Furthermore, an improvement of this utility model is that the rivet nut is made of stainless steel or zinc-nickel plated carbon steel.
[0012] (III) Beneficial Effects
[0013] Compared with the prior art, this utility model provides an all-in-one low-voltage DC positive copper busbar, which has the following beneficial effects:
[0014] This all-in-one low-voltage DC positive copper busbar adopts an integrated design, combining the main body of the terminal block, the bend plate, and each terminal block into a single structure. This eliminates the assembly process of traditional distributed copper busbars, making wiring operations simpler and significantly improving the assembly efficiency of the motor terminal block for new energy vehicles. At the same time, it avoids the loosening problem that may occur when connecting multiple components, ensuring the stability of power transmission.
[0015] Using T2 copper as the main material, its excellent conductivity reduces resistance loss and ensures efficient transmission of low-voltage DC circuits; the surface matte tin plating treatment enhances the corrosion resistance and oxidation resistance of the copper busbar, extends its service life, and adapts to the complex working environment inside the cabin of new energy vehicles. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This utility model Figure 1 Top view;
[0018] Figure 3 This utility model Figure 1 The main view;
[0019] In the diagram: 1. Terminal block body; 2. First terminal block; 3. Press-fit nut; 4. Second terminal block; 5. Steel ring; 6. First connecting hole; 7. Third terminal block; 8. Second connecting hole; 9. First bent plate; 10. Second bent plate. 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 see Figures 1-3 This utility model discloses an all-in-one low-voltage DC positive copper busbar, characterized in that: it includes a terminal block body 1, on which a first bent plate 9 and a second bent plate 10 are symmetrically arranged on both sides; a first terminal plate 2 is provided at the lower end of the first bent plate 9, and a rivet nut 3 is provided on the first terminal plate 2; a second terminal plate 4 is provided at the lower end of the terminal block body 1, and a steel ring 5 and a first connecting hole 6 are provided on the second terminal plate 4; a third terminal plate 7 is provided at the bottom end of the second bent plate 10, and a plurality of second connecting holes 8 are provided on the third terminal plate 7.
[0022] The main body 1, the first bent plate 9, the first terminal block 2, the second terminal block 4, the second bent plate 10, and the third terminal block 7 are an integrated structure.
[0023] The main body 1, the first bent plate 9, the first terminal block 2, the second terminal block 4, the second bent plate 10, and the third terminal block 7 are made of T2 copper.
[0024] The surface of the structure is coated with matte tin, and the thickness of the matte tin coating is 2 to 10 μm.
[0025] When installing this all-in-one low-voltage DC positive copper busbar, its connection path in the new energy vehicle motor terminal block must first be determined. Using the main body 1 of the terminal block as the core connecting component, the symmetrical first bent plate 9 and second bent plate 10 on both sides adapt to the installation space of the motor terminal block, ensuring precise alignment of each terminal block with its corresponding connection end.
[0026] When connecting to the motor end, the first connecting hole 6 on the second terminal block 4 aligns with the corresponding interface of the motor terminal block. The steel ring 5 enhances the structural strength of the connection and prevents loosening during long-term use. When connecting external lines, the rivet nut 3 on the first terminal block 2 is used to fix the terminal of one side of the line. A stable connection is achieved through the cooperation of the bolt and the rivet nut 3. The multiple second connecting holes 8 on the third terminal block 7 can be selected according to the actual wiring requirements to connect the other side of the line, meeting the needs of parallel connection of multiple lines.
[0027] During installation, the integrated terminal block requires no additional assembly and can be directly connected through the connection structure of each terminal block, reducing the cumbersome steps of traditional distributed connections and greatly improving assembly efficiency.
[0028] The rivet nut 3 is made of stainless steel or zinc-nickel plated carbon steel.
[0029] The press-fit nut 3 is made of stainless steel or zinc-nickel-plated carbon steel, possessing good strength and corrosion resistance. Its cooperation with the first terminal block 2 makes the wiring connection more stable and less prone to poor contact due to vehicle vibration. The multiple second connection holes 8 of the third terminal block 7 provide flexible wiring options to adapt to different wiring layout requirements, solving the problems of messy layout and large space occupation in traditional connection methods, and better meeting the requirements of the compact cabin design of new energy vehicles.
[0030] The overall structure optimizes space utilization through a reasonable bent plate design, and the functions of each terminal block are clearly defined, which not only ensures convenient connection between the motor and external circuits, but also improves the neatness and reliability of the circuit connection, providing strong support for the stable operation of the new energy vehicle motor system.
[0031] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A multi-functional low-voltage DC positive copper busbar, characterized in that: The device includes a main body (1) of a terminal block, on which a first bent plate (9) and a second bent plate (10) are symmetrically arranged on both sides. A first terminal plate (2) is provided at the lower end of the first bent plate (9), and a rivet nut (3) is provided on the first terminal plate (2). A second terminal plate (4) is provided at the lower end of the main body (1), and a steel ring (5) and a first connecting hole (6) are provided on the second terminal plate (4). A third terminal plate (7) is provided at the bottom end of the second bent plate (10), and a plurality of second connecting holes (8) are provided on the third terminal plate (7). The main body (1), the first bent plate (9), the first terminal block (2), the second terminal block (4), the second bent plate (10), and the third terminal block (7) are an integrated structure; The main body (1), first bent plate (9), first terminal block (2), second terminal block (4), second bent plate (10) and third terminal block (7) are made of T2 copper. The surface of the structure is coated with matte tin, and the thickness of the matte tin coating is 2-10 μm. The rivet nut (3) is made of stainless steel or zinc-nickel plated carbon steel.