一种新型翻边铆接电池顶盖

By optimizing the structure and assembly method of the flanged and riveted battery top cover, the problems of low production efficiency, insufficient strength and poor sealing of traditional battery top covers have been solved, achieving efficient production and improved safety.

CN224519993UActive Publication Date: 2026-07-17NANJING SHENGSHI PRECISION IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING SHENGSHI PRECISION IND CO LTD
Filing Date
2025-07-07
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional flanged and riveted battery top cover design suffers from multiple steps, resulting in low production efficiency, high equipment investment, high labor costs, insufficient mechanical strength, poor sealing, and low safety.

Method used

The battery top cover adopts a new type of flanged riveting design, which includes a base plate, terminal post, sealing ring, insulating plate and steel ring. By optimizing the structure and assembly method, the riveting steps are reduced, the mechanical strength and sealing performance are enhanced, and the mechanical interlocking and anti-rotation function are achieved by using the convex ring, groove and limiting structure of the terminal post.

Benefits of technology

It improved production efficiency, reduced manufacturing costs, enhanced mechanical strength and sealing, reduced the risk of battery failure, and improved safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

本实用新型公开了一种新型翻边铆接电池顶盖,包括基板和极柱,基板上开设有与极柱对应配合的孔洞,基板通过孔洞套设在极柱上,极柱上从下往上依次套设有密封圈、绝缘板和钢环,密封圈与绝缘板的连接处靠外侧形成有环形状的第一凹槽。单体极柱侧壁设有拔模角度,便于翻边铆接与旋铆,减少翻边步骤;极柱为圆柱形设计利于翻边成型,铆接后肉厚均匀;极柱设有钢环装配台阶,用于支撑钢环,防止钢环变形、下沉;极柱设有数个切槽,配合绝缘板突出部嵌入,起到抗扭止转作用;钢环设有数个切槽,铆接时极柱翻边嵌入钢环,钢环外径四个切边与绝缘板(弱导板)相互限位,起到止转作用;绝缘板装配后突出部下部平面与极柱切槽平面接触,增强支撑作用。
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Claims

1. A novel flanged and riveted battery top cover, comprising a substrate (1) and an electrode post (6), wherein the substrate (1) has holes corresponding to and cooperating with the electrode post (6), and the substrate (1) is fitted onto the electrode post (6) through the holes, characterized in that, The pole post (6) is fitted with a sealing ring (3), an insulating plate (4) and a steel ring (5) from bottom to top. A first groove in the shape of an annular ring is formed on the outer side of the connection between the sealing ring (3) and the insulating plate (4). The base plate (1) is stuck in the first groove. A second groove in the shape of an annular ring is also formed between the base plate (1) and the pole post (6). A brake frame (2) is stuck in the second groove. A raised ring (601) is formed on the top edge of the pole post (6).

2. A novel flanged riveted battery top cover as claimed in claim 1, wherein, The protruding ring (601) at the top of the pole post (6) is narrower at the top and wider at the bottom.

3. A new type of flanged riveted battery top cover according to claim 1, characterized in that, The top of the insulating plate (4) is provided with a third groove that matches the steel ring (5), and the steel ring (5) is stuck in the third groove.

4. A new type of flanged riveted battery top cover according to claim 1, characterized in that, The sealing ring (3) has a fourth groove on its outer top, and the substrate (1) is fitted onto the fourth groove on the sealing ring (3).

5. A new type of flanged riveted battery top cover according to claim 1, characterized in that, The inner side of the insulating plate (4) also has a protrusion (401).

6. A novel flanged riveted battery top cover as claimed in claim 5, wherein, The pole post (6) has a fifth groove (602) formed by indentation at the side corresponding to the protrusion (401), and the protrusion (401) can be locked in the fifth groove (602).

7. A new type of flanged riveted battery top cover according to claim 3, characterized in that, The steel ring (5) has a limiting edge (502) on its outer side, and a groove matching the limiting edge (502) is formed on the inner wall of the third groove. The steel ring (5) can be locked and limited in the insulating plate (4) by the limiting edge (502).

8. A novel flanged riveted battery top cover as claimed in claim 7, wherein, The steel ring (5) has four limiting cut edges (502), which are evenly distributed along the circumference.

9. A novel flanged riveted battery top cover as claimed in claim 7, wherein, The inner wall of the steel ring (5) is also provided with an anti-rotation groove (501).

10. A new type of flanged riveted battery top cover according to claim 1, characterized in that, The sealing ring (3) is L-shaped.