Waterproof structure of lithium battery connector

By designing a waterproof pad that matches the discharge base and using an integrated injection molding process, the problem of water ingress into lithium battery connectors was solved, achieving higher waterproofing and cost-effectiveness.

CN223884695UActive Publication Date: 2026-02-06SHANGHAI PYTES ENERGY CO LTD
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Patent Information

Application Number
CN202520158054.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2026-02-06
Estimated Expiration
2035-01-23

AI Technical Summary

Technical Problem

Existing lithium battery connectors are prone to water ingress during use, which affects the performance of the lithium battery box and reduces its lifespan.

Method used

A waterproof structure for a lithium battery connector was designed, including a waterproof pad and a discharge base. The discharge insert and the fixing base are integrated through a secondary injection molding process, and the waterproof effect is achieved by combining bolt fastening and snap-fit ​​structure.

Benefits of technology

The improved waterproofing of the lithium battery connector ensures the performance of the lithium battery box, extends its service life, and reduces production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of lithium batteries, in particular to a waterproof structure of a lithium battery connector. Comprising a battery box shell and a fixing seat which are oppositely arranged, a mounting hole is formed in the middle of the battery box shell, a discharging seat is arranged in the mounting hole, an insertion piece hole matched with the mounting hole in position is formed in the fixing seat, a discharging insertion piece is arranged in the insertion piece hole and inserted into the discharging seat, and a circle of waterproof pad is arranged on the surface of the discharging seat. Compared with the prior art, the waterproof performance of the lithium battery connector is enhanced, the performance of a lithium battery box is ensured, and the service life of the lithium battery box is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, specifically a waterproof structure for a lithium battery connector. Background Technology

[0002] A lithium battery connector is a device that connects the lithium battery case to the battery case housing, facilitating the assembly of the lithium battery case into the required position. However, existing lithium battery connectors are prone to water ingress during use, which affects the performance of the lithium battery case and reduces its lifespan. Summary of the Invention

[0003] This invention provides a waterproof structure for a lithium battery connector to overcome the shortcomings of existing technologies.

[0004] To achieve the above objectives, a waterproof structure for a lithium battery connector is designed, including a battery box shell and a fixing base arranged opposite to each other. The battery box shell has a mounting hole in the middle, and a discharge base is provided in the mounting hole. The fixing base has a plug hole that matches the position of the mounting hole, and a discharge plug is provided in the plug hole. The discharge plug is inserted into the discharge base, and a waterproof pad is provided on the surface of the discharge base.

[0005] The shape of the waterproof pad matches the shape of the discharge base.

[0006] The area of ​​the waterproof pad is smaller than the area of ​​the discharge base mounting surface.

[0007] The waterproof pad is attached to the surface of the discharge base on one side and to the surface of the fixing base on the other side.

[0008] The mounting base is fastened to the battery box housing with bolts.

[0009] The discharge holder and the battery box shell are an integral structure.

[0010] The discharge insert and the fixing base are an integral structure.

[0011] The mounting base has several protruding locking blocks on one side, and the battery box casing has locking slots that cooperate with the locking blocks.

[0012] The mounting base has a positioning block at its lower end, and the battery box shell has a notch at one end that matches the positioning block.

[0013] The mounting base has a buckle on one side.

[0014] Compared with the prior art, this utility model enhances the waterproofness of the lithium battery connector, ensures the performance of the lithium battery box, and extends the service life of the lithium battery box. Attached Figure Description

[0015] Figure 1 For the explosion of this utility modelFigure 1 .

[0016] Figure 2 The explosion Figure 2 .

[0017] Figure 3 The structure diagram of the waterproof pad of the utility model.

[0018] Figure 4 The structure diagram of the battery box shell of the utility model.

[0019] Figure 5 The structure diagram of the utility model fixing seat.

[0020] Figure 6 The structure diagram of the utility model after assembly. Specific embodiments

[0021] The utility model will be further described in the following according to the drawings.

[0022] As Figures 1 to 6 Shown, relative arrangement's battery box shell, fixing seat, the battery box shell 1 middle part is equipped with mounting hole 2, is equipped with the discharge seat 3 in mounting hole 2, is equipped with the discharge insert piece 6 in the insert piece hole of fixing seat 4 with mounting hole 2 position cooperation, the discharge insert piece 6 is inserted into the discharge seat 3, is equipped with a circle waterproof pad 7 on the surface of discharge seat 3.

[0023] The shape of waterproof pad 7 is matched with the shape of discharge seat 3.

[0024] The area of waterproof pad 7 is less than the area of discharge seat installation surface 12, prevents water from entering between discharge insert piece 6, discharge seat 3.

[0025] As Figure 6 Shown, after discharge seat 3 and fixing seat 4 are connected, waterproof pad 7 is compressed, one side is attached on the surface of discharge seat 3, and the other side is attached with the surface of fixing seat 4, prevents water from entering, thereby preventing lithium battery short circuit.

[0026] Fixing seat 4 and battery box shell 1 are fastened through bolt.

[0027] Discharge seat 3 and battery box shell 1 are integral structure. The shell of discharge seat 3 selects plastic, and discharge seat 3 is integrally injection molded with battery box shell 1 through the process of secondary injection molding, does not need additional waterproof material, reaches higher waterproof property, and saves assembly procedure, saves cost.

[0028] Discharge insert piece 6 and fixing seat 4 are integral structure. Discharge insert piece 6 is integrally injection molded with fixing seat 4 through the process of secondary injection molding, saves installation process, and simplifies cost.

[0029] The fixed seat 4 is provided with a plurality of protruding clamping blocks 8 on one side, and the battery box shell 1 is provided with clamping openings 9 matched with the clamping blocks 8.

[0030] The fixed seat 4 is provided with a positioning block 10 at the lower end, and the battery box shell 1 is provided with a recess 11 matched with the positioning block 10 at one end.

[0031] One side of the fixed seat 4 is provided with a buckle 13, and in specific use, the buckle is matched with an external wire passing plate to fix the wire passing plate and prevent the wire passing plate from moving forward and backward.

[0032] In use, the connector of the utility model is connected with the lithium battery box through the fixed seat 4, the waterproof pad 7 plays a waterproof role, water is prevented from entering the lithium battery box, and the battery performance is affected.

Claims

1. A waterproof structure of a lithium battery connector, comprising oppositely arranged battery box shells, fixing seats, characterized in that: The battery box shell (1) is provided with an installation hole (2) in the middle, the installation hole (2) is provided with a discharge seat (3), the fixed seat (4) is provided with a plug hole matched with the position of the installation hole (2), the plug hole is provided with a discharge plug (6), the discharge plug (6) is inserted into the discharge seat (3), and a waterproof pad (7) is arranged on the surface of the discharge seat (3).

2. The waterproof structure of a lithium battery connector according to claim 1, characterized in that: The waterproof pad (7) is matched with the shape of the discharge seat (3).

3. The waterproof structure of a lithium battery connector according to claim 1 or 2, characterized in that: The area of the waterproof pad (7) is smaller than the area of the discharge seat installation surface (12).

4. The waterproof structure of a lithium battery connector according to claim 1, characterized in that: One side of the waterproof pad (7) is attached to the surface of the discharge seat (3), and the other side is attached to the surface of the fixed seat (4).

5. The waterproof structure of a lithium battery connector according to claim 1, characterized in that: The fixed seat (4) is fastened with the battery box shell (1) through bolts.

6. The waterproof structure of a lithium battery connector according to claim 1, characterized in that: The discharge seat (3) and the battery box shell (1) are an integral structure.

7. The waterproof structure of a lithium battery connector according to claim 1 or 6, characterized in that: The discharge plug (6) and the fixed seat (4) are an integral structure.

8. The waterproof structure of a lithium battery connector according to claim 1, characterized in that: One side of the fixed seat (4) is provided with a plurality of protruding clamping blocks (8), and the battery box shell (1) is provided with a clamping hole (9) matched with the clamping blocks (8).

9. The waterproof structure of a lithium battery connector according to claim 1 or 8, characterized in that: The lower end of the fixed seat (4) is provided with a positioning block (10), and one end of the battery box shell (1) is provided with a recess (11) matched with the positioning block (10).

10. The waterproof structure of a lithium battery connector according to claim 1, characterized in that: One side of the fixed seat (4) is provided with a buckle (13).