A new type of lithium battery to plug-in charging and discharging terminal

By introducing a snap-fit ​​connection method into the lithium battery plug-in charging and discharging terminals, the problem of loose traditional terminals is solved, a stable electrical connection is achieved, and contact reliability and battery equipment safety are improved.

CN224472833UActive Publication Date: 2026-07-07廖键勇

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
廖键勇
Filing Date
2025-07-31
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Traditional lithium batteries lack a locking mechanism for securing the charging and discharging terminals, which can cause them to loosen after prolonged use, affecting contact resistance and charging/discharging efficiency, and potentially even damaging the battery and equipment.

Method used

The design employs a snap-fit ​​connection method, using a limit snap-fit ​​and a fixing groove to ensure tight contact between the conductive terminal and the connection hole, preventing loosening.

Benefits of technology

It enhances connection stability, reduces contact resistance, decreases heat generation and energy loss, and improves battery and device safety and lifespan.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224472833U_ABST
    Figure CN224472833U_ABST
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Abstract

The utility model discloses a novel lithium battery opposite plug charging and discharging terminal, it includes male female seat, female male seat, the male female seat side surface fixedly connected with first cable, the male female seat side surface is away from the first cable and is equipped with no. The inside side surface fixedly connected with the conductive terminal of no. The inside side surface fixedly connected with the conductive terminal of no. The female male seat side surface is fixedly connected with the second cable, the female male seat side surface is away from the second cable and is equipped with the linking hole, the female male seat side surface is close to the middle and is equipped with the guide groove, the guide groove and the guide plate size correspond with each other. Through pressing the rectangle end of limit buckle, female male seat is inserted into no. Make the guide groove and the guide plate adhere, and the conductive terminal contacts the linking hole. After loosening, the hook of limit buckle is automatically clamped into fixed slot, and is stably positioned, and is effectively prevented from loosening.
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Description

Technical Field

[0001] This utility model relates to the field of lithium battery plug-in terminal technology, specifically a novel lithium battery plug-in charging and discharging terminal. Background Technology

[0002] Lithium-ion battery terminals are crucial electrical connection components widely used in electric transportation, garden tools, and energy storage systems. They connect lithium-ion batteries to devices, enabling safe and efficient power transmission. These terminals are made of conductive materials, reducing resistance and improving transmission efficiency. In electric vehicles and motorcycles, they connect the battery pack to the motor control system, ensuring stable power output; in electric garden tools, they connect the battery to the motor, providing power; and in energy storage systems, they connect the energy storage battery to devices such as inverters, enabling the storage and release of electrical energy. In short, lithium-ion battery terminals are an indispensable bridge connecting batteries and devices in modern electrical equipment.

[0003] During the battery-device connection process, traditional battery plug-in charging and discharging terminals typically lack a secure locking mechanism. This design can easily lead to loosening of the terminals after prolonged use. Once the terminals become loose, the contact resistance between the battery and the device gradually increases. This can not only cause poor contact but also affect the battery's charging and discharging efficiency, and in extreme cases, even damage the battery and the device. Summary of the Invention

[0004] This utility model provides a novel lithium battery plug-in charging and discharging terminal, which effectively enhances the stability of the connection and significantly improves the reliability of the contact by adopting a snap-fit ​​connection method.

[0005] To achieve the above objectives, a novel lithium battery plug-in charging and discharging terminal is provided, comprising a male and female connector and a female and male connector. A first cable is fixedly connected to the side surface of the male and female connector. A first mounting groove is formed on the side surface of the male and female connector away from the first cable. A conductive terminal is fixedly connected to the inner side surface of the first mounting groove. A guide plate is fixedly connected to the first mounting groove near the center. A second cable is fixedly connected to the side surface of the female and male connector. A connecting hole is formed on the side surface of the female and male connector away from the second cable. A guide groove is formed on the side surface of the female and male connector near the center. The guide groove and the guide plate are sized to correspond to each other. A second mounting groove is formed on the upper surface of the female and male connector. A limit buckle is provided on the inner side surface of the second mounting groove. The limit buckle is made of elastic material. One end of the side surface of the limit buckle is rectangular, and the upper surface of the limit buckle away from the rectangle is hook-shaped. A fixing groove is formed on the inner upper surface of the first mounting groove. The first cable is designed to facilitate rectangular electrical conduction. The first mounting slot is designed to install the guide plate and conductive terminal. The conductive terminal is designed to cooperate with the first cable for rectangular electrical conduction. The guide plate is designed to be inserted into the guide slot at the male and female connectors for rectangular guidance. The second cable is designed to transmit electricity. The connecting hole is designed to facilitate the insertion of one end of the conductive terminal. The guide slot is designed to facilitate the insertion of the guide plate. The second mounting slot is designed to facilitate the installation of the limit buckle. The limit buckle is designed to be inserted into the fixing slot on the upper surface of the first mounting slot for limiting and fixing. The rectangular shape of one end of the limit buckle is designed to facilitate pressing. The hook shape of the upper surface of the limit buckle is designed to cooperate with the limit buckle for limiting and fixing.

[0006] According to the novel lithium battery plug-in charging and discharging terminal, there are multiple first cables. The first cables pass through the male and female connectors and are electrically connected to the conductive terminals. The conductive terminals are cylindrical, and the male and female connectors are rectangular in the middle and triangular at both ends.

[0007] According to the novel lithium battery plug-in charging and discharging terminal, the number of second cables is multiple. The multiple second cables are used for electrical transmission.

[0008] According to the novel lithium battery plug-in charging and discharging terminal, the outer contour dimensions of the female connector correspond to the inner wall dimensions of the first mounting slot.

[0009] According to the novel lithium battery plug-in charging and discharging terminal, the inner contour of the first mounting slot is hexagonal. The hexagonal inner wall of the first mounting slot facilitates the insertion of the hexagonal female / male connector.

[0010] According to the novel lithium battery plug-in charging and discharging terminal, the guide groove is rectangular. The rectangular guide groove is designed to facilitate the entry of a rectangular guide plate.

[0011] According to the novel lithium battery plug-in charging and discharging terminal, the outer contour surface of the female and male connectors is hexagonal.

[0012] According to the novel lithium battery plug-in charging and discharging terminal, the outer arc surfaces of the first and second cables are made of insulating material. Using insulating material on the outer arc surfaces of the first and second cables is to improve their protective performance.

[0013] The beneficial effects of this utility model are as follows: By pressing the rectangular end of the limiting buckle and then inserting the female and male connectors into the first mounting slot, it is ensured that the guide slot and guide plate are tightly fitted. At this time, one end of the conductive terminal is in contact with the conductive material of the connecting hole. Releasing the limiting buckle causes its hook portion to automatically engage with the fixing groove of the first mounting slot under elastic action, achieving stable positioning. This effectively prevents the adverse effects caused by terminal loosening during long-term use.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic diagram of the overall structure of a novel lithium battery plug-in charging and discharging terminal according to this utility model.

[0017] Figure 2 This is a schematic diagram of the male and female connector mounting structure of a novel lithium battery plug-in charging and discharging terminal according to this utility model.

[0018] Figure 3 This is a schematic diagram of a novel lithium battery plug-in charging and discharging terminal limiting buckle installation structure according to the present invention.

[0019] Figure 4 This is a schematic diagram of the guide groove installation structure of a novel lithium battery plug-in charging and discharging terminal according to the present invention.

[0020] Legend:

[0021] 1. Mounting slot 1; 2. Male and female connectors; 3. Conductive terminal; 4. Guide plate; 5. Female and male connectors; 6. Limiting buckle; 7. Connecting hole; 8. Guide groove; 9. First cable; 10. Second cable; 11. Mounting slot 2. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Reference Figures 1 to 4 This utility model discloses a novel lithium battery plug-in charging and discharging terminal, comprising a male and female connector 2 and a female and male connector 5. A first cable 9 is fixedly connected to the side surface of the male and female connector 2. A first mounting groove 1 is formed on the side surface of the male and female connector 2 away from the first cable 9. A conductive terminal 3 is fixedly connected to the inner side surface of the first mounting groove 1. A guide plate 4 is fixedly connected to the first mounting groove 1 near the center. A second cable 10 is fixedly connected to the side surface of the female and male connector 5. A connecting hole 7 is formed on the side surface of the female and male connector 5 away from the second cable 10. A guide groove 8 is provided, and the guide groove 8 and guide plate 4 correspond in size. A second mounting groove 11 is provided on the upper surface of the female connector 5. A limit buckle 6 is provided on the inner side surface of the second mounting groove 11. The limit buckle 6 is made of elastic material, with one end of its side surface being rectangular and the upper surface of its side surface away from the rectangle being hook-shaped. A fixing groove is provided on the inner upper surface of the first mounting groove 1. Multiple first cables 9 are provided, passing through the male / female connector 2 and electrically connecting to conductive terminals 3. The conductive terminals 3 are cylindrical, and the male / female connector 2 has a rectangular middle section and triangular ends. By combining the limit buckle 6 with the fixing groove, the stability of the connection is greatly enhanced. Even under certain vibrations or other external forces, this connection method can still maintain its stability.

[0024] The inner contour of mounting slot 1 is hexagonal. The outer contour dimensions of the female connector 5 correspond to the inner wall dimensions of mounting slot 1. Multiple second cables 10 are present. The outermost end of the connector hole 7 is made of conductive material. When the female connector 5 is inserted into mounting slot 1, the conductive terminal 3 makes close contact with the conductive material at the outermost end of the connector hole 7. This contact area is carefully designed to reduce contact resistance, thereby reducing heat generation and energy loss. The insulation material used on the outer arc surfaces of the first cable 9 and the second cable 10 not only possesses excellent insulation properties, effectively blocking current conduction, but also has excellent voltage withstand characteristics. This high-quality insulation material effectively prevents leakage, ensuring safe and stable current transmission within the specified path.

[0025] The outer arc surfaces of the first cable 9 and the second cable 10 are made of insulating material, the outer contour surface of the female connector 5 is hexagonal, and the guide groove 8 is rectangular.

[0026] Working Principle: In use, first press the limiting buckle 6 near the rectangular end, bringing the rectangular portion and the hook-shaped portion closer to the lower inner surface of the second mounting groove 11. Next, insert the female connector 5 into the first mounting groove 1, with the guide groove 8 pressed against the guide plate 4 until they are fully engaged. At this point, one end of the conductive terminal 3 contacts the conductive material at the outermost end of the connecting hole 7. Then, release the limiting buckle 6; it will automatically spring back under elasticity, and the hook portion will engage in the fixing groove on the upper inner surface of the first mounting groove 1, achieving limiting and fixing. This effectively prevents damage caused by increased internal resistance between the connecting hole 7 and the conductive terminal 3 due to loosening during long-term use.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A novel lithium battery plug-in charge / discharge terminal, characterized in that, The device includes a male connector (2) and a female connector (5). A first cable (9) is fixedly connected to the side surface of the male connector (2). A first mounting groove (1) is formed on the side surface of the male connector (2) away from the first cable (9). A conductive terminal (3) is fixedly connected to the inner side surface of the first mounting groove (1). A guide plate (4) is fixedly connected to the first mounting groove (1) near the center. A second cable (10) is fixedly connected to the side surface of the female connector (5). A [missing information] is formed on the side surface of the female connector (5) away from the second cable (10). The female head male seat (5) has a connecting hole (7). A guide groove (8) is provided on the side surface of the female head male seat (5) near the middle. The guide groove (8) and the guide plate (4) are sized to correspond to each other. A second mounting groove (11) is provided on the upper surface of the female head male seat (5). A limit buckle (6) is provided on the inner side surface of the second mounting groove (11). The limit buckle (6) is made of elastic material. One end of the side surface of the limit buckle (6) is rectangular. The upper surface of the limit buckle (6) away from the rectangle is hook-shaped. A fixing groove is provided on the inner upper surface of the first mounting groove (1).

2. The novel lithium battery plug-in charge / discharge terminal according to claim 1, characterized in that, There are multiple first cables (9). The first cable (9) passes through the male and female connectors (2) and is electrically connected to the conductive terminal (3). The conductive terminal (3) is cylindrical, and the male and female connectors (2) are rectangular in the middle and triangular at both ends.

3. The novel lithium battery plug-in charge / discharge terminal according to claim 1, characterized in that, The number of the second cable (10) is multiple.

4. A novel lithium battery plug-in charge / discharge terminal according to claim 1, characterized in that, The outer contour dimensions of the female head male seat (5) correspond to the inner wall dimensions of the first mounting groove (1).

5. A novel lithium battery plug-in charge / discharge terminal according to claim 1, characterized in that, The internal contour of the No. 1 mounting slot (1) is hexagonal.

6. A novel lithium battery plug-in charge / discharge terminal according to claim 1, characterized in that, The guide groove (8) is rectangular.

7. A novel lithium battery plug-in charge / discharge terminal according to claim 1, characterized in that, The outer contour surface of the female head male seat (5) is hexagonal.

8. A novel lithium battery plug-in charge / discharge terminal according to claim 1, characterized in that, The outer arc surfaces of the first cable (9) and the second cable (10) are made of insulating material.