Lead-coated copper battery terminal

The battery terminals designed with lead-clad copper structure and plum-shaped base solve the problem of loosening of copper alloy terminals under vibration, reducing costs and improving connection stability and safety.

CN223260794UActive Publication Date: 2025-08-22GUANGDONG NA DEYING TECH CO LTD
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Patent Information

Application Number
CN202521528694.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-22
Publication Date
2025-08-22
Estimated Expiration
2035-07-22

AI Technical Summary

Technical Problem

The existing copper alloy terminals of lithium-ion and sodium-ion start battery terminals for automobiles are prone to loosening and falling off when the vehicle vibrates, and the cost is high.

Method used

It adopts lead-covered copper structure, the inner core of the terminal is copper alloy, and the outer shell is lead alloy, combined with the plum-shaped base design and anti-slip stripes to enhance the connection stability; the cover sheet is installed at the handle to prevent impurities and moisture from entering.

Benefits of technology

Reduce material costs, improve connection stability, prevent pile heads from loosening, enhance friction, and ensure the reliability and safety of battery connection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a lead-coated copper battery terminal, which relates to the technical field of battery terminals and comprises a battery jar and a battery cover, the battery cover is mounted on the battery jar, terminal inner cores are mounted on two sides of the battery cover, the bottom end of each terminal inner core is positioned inside the battery cover and is provided with a plum-blossom-shaped base, and the battery cover is mounted on the battery jar. A terminal shell is cast outside each terminal inner core, the terminal inner cores are made of copper alloy, and the terminal shells are made of lead alloy. According to the utility model, the lead-coated copper structure is adopted, the material cost is reduced, the plasticity of lead alloy and the design of the plum-blossom-shaped base are utilized, the vibration of a vehicle is buffered, the loosening and falling of the pile head are reduced, and in addition, the terminal inner core is provided with the anti-skid stripes and the terminal shell made of the lead material, thereby respectively enhancing the friction force between the pile head and the inner core and limiting the displacement of the pile head; the connection reliability is ensured.
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Description

Technical Field

[0001] The utility model relates to the technical field of battery terminals, in particular to a lead-clad copper battery terminal. Background Art

[0002] With the increasing global demand for clean energy and the widespread application of various electronic devices, electric vehicles, etc., the market demand for batteries, as key components for energy storage and supply, continues to rise. The importance of battery terminals, as key components connecting batteries to external devices, is also becoming increasingly prominent.

[0003] The positive and negative terminals of existing lithium-ion and sodium-ion starting battery terminals for automobiles are typically manufactured using a copper alloy process. Due to the smooth material and the terminal design of the pheasant body, the battery connector pins can easily loosen and fall off due to vehicle vibration during use, affecting product performance. In addition, the cost of pure copper is high. Therefore, a lead-clad copper battery terminal has been designed to solve this problem. Utility Model Content

[0004] Based on this, the purpose of the present invention is to provide a lead-clad copper battery terminal to solve the technical problem of poor stability of traditional battery terminals.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a lead-clad copper battery terminal, comprising a battery slot and a battery cover, wherein the battery cover is installed on the battery slot, terminal cores are installed on both sides of the battery cover, and the bottom end of each terminal core is located inside the battery cover and is provided with a plum blossom-shaped base, each terminal core is cast with a terminal shell, the material of the terminal core is copper alloy, and the material of the terminal shell is lead alloy.

[0006] By adopting the above technical solution, a lead-clad copper structure is used, which reduces the material cost compared to battery terminals made of pure copper. The terminal core is made of copper alloy, which has good electrical conductivity and can ensure normal charging and discharging of the battery. The terminal shell is made of lead alloy, which has relatively low hardness and certain plasticity. When the battery connection post is installed on the terminal shell, the lead alloy shell can better buffer the vibration through its plastic deformation when affected by factors such as vehicle vibration, compared to the smooth copper alloy surface, thereby reducing the loosening and falling of the post. At the same time, the plum blossom-shaped base design increases the contact area and friction at the connection between the terminal core and the battery cover, making the connection between the terminal core and the battery cover more secure, further improving the stability of the connection.

[0007] The present invention is further configured such that the exterior of each terminal inner core is provided with anti-slip stripes.

[0008] By adopting the above technical solution, the anti-slip stripes increase the friction between the contact surface of the terminal inner core and the terminal shell, preventing the terminal shell from slipping on the terminal inner core, making the connection tighter and stronger.

[0009] The present invention is further configured such that a handle is rotatably connected to the battery cover.

[0010] By adopting the above technical solution, the handle facilitates the movement and transportation of the battery.

[0011] The present invention is further configured such that a cover sheet is installed at the handle of the battery cover.

[0012] By adopting the above technical solution, a cover is installed at the handle to prevent external impurities, moisture, etc. from entering the battery through the fuse box, avoiding contamination of the battery cells and components inside the battery, thereby affecting the battery performance and life, and at the same time, improving the safety of battery use.

[0013] In summary, the present invention has the following beneficial effects:

[0014] The utility model adopts a lead-clad copper structure to reduce material costs, and uses the plasticity of lead alloy and the plum blossom-shaped base design to buffer vehicle vibration and reduce the loosening and falling of the pile head. In addition, the terminal core is provided with anti-slip stripes and the terminal shell is made of lead material, which respectively enhances the friction between the pile head and the inner core and limits the displacement of the pile head, thereby ensuring connection reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A cross-sectional view after cutting along a-a';

[0017] Figure 3 For this utility model Figure 1 A cross-sectional view after cutting along b-b';

[0018] Figure 4 This is a schematic diagram of the terminal core and its associated structure of the present utility model;

[0019] Figure 5 This is a schematic diagram of the terminal core structure of the present utility model;

[0020] Figure 6 For the utility model Figure 2 A magnified view of the structure at point A.

[0021] In the figure: 1. Battery slot; 2. Battery cover; 3. Terminal core; 4. Terminal shell; 5. Base; 6. Anti-slip stripes; 7. Cover; 8. Handle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] The following describes an embodiment of the present invention based on its overall structure.

[0024] Lead-clad copper battery terminals, such as Figure 1-6 As shown, it includes a battery slot 1 and a battery cover 2, the battery cover 2 is installed on the battery slot 1, and terminal cores 3 are installed on both sides of the battery cover 2, and the bottom end of each terminal core 3 is located inside the battery cover 2 and is provided with a plum blossom-shaped base 5, and each terminal core 3 is cast with a terminal shell 4. The material of the terminal core 3 is copper alloy, and the material of the terminal shell 4 is lead alloy. The lead-clad copper structure reduces the material cost compared to the battery terminal made of pure copper. The terminal core 3 is copper alloy, which has good electrical conductivity and can ensure the normal charging and discharging of the battery. The terminal shell 4 is made of lead alloy, which has a relatively low hardness and a certain plasticity. When the battery connection pile head is installed on the terminal shell 4, the lead alloy shell can better cushion the vibration through its plastic deformation when affected by factors such as vehicle vibration, compared with the smooth copper alloy surface, thereby reducing the loosening and falling of the pile head. At the same time, the plum blossom-shaped base 5 design increases the contact area and friction force at the connection between the terminal core 3 and the battery cover 2, making the connection between the terminal core 3 and the battery cover 2 more firm, and further improving the stability of the connection.

[0025] Further, such as Figure 1-6 As shown, the outside of each terminal core 3 is provided with anti-slip stripes 6, which increase the friction between the contact surface between the terminal core 3 and the terminal shell 4, preventing the terminal shell 4 from slipping on the terminal core 3, making the connection tighter and more secure.

[0026] During this period, if Figure 1-3 As shown, a handle 8 is rotatably connected to the battery cover 2, and the handle 8 facilitates the movement and transportation of the battery.

[0027] In addition, if Figure 1-3 As shown, a cover sheet 7 is installed at the handle 8 of the battery cover 2. The cover sheet 7 is installed at the handle 8 to prevent external impurities, moisture, etc. from entering the battery through the fuse box, avoiding contamination of the battery cells and components inside the battery, thereby affecting the performance and life of the battery, and at the same time, improving the safety of battery use.

[0028] On the basis of the above structure, in this embodiment, although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and it is not a limitation of the utility model. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, replacements and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A lead-clad copper battery terminal comprising a battery container (1) and a battery cover (2), characterized in that: The battery cover (2) is mounted on the battery container (1), and terminal cores (3) are mounted on both sides of the battery cover (2), and a plum blossom-shaped base (5) is provided at the bottom end of each terminal core (3) located inside the battery cover (2), and a terminal shell (4) is cast on the outside of each terminal core (3), wherein the material of the terminal core (3) is copper alloy, and the material of the terminal shell (4) is lead alloy.

2. The lead-clad copper battery terminal according to claim 1, characterized in that: The exterior of each terminal core (3) is provided with anti-slip stripes (6).

3. The lead-clad copper battery terminal according to claim 1, characterized in that: A handle (8) is rotatably connected to the battery cover (2).

4. The lead-clad copper battery terminal according to claim 1, characterized in that: A cover sheet (7) is installed on the handle (8) of the battery cover (2).