一种铆钉和连接件的连接结构、穿孔式电池盖板及电池

Abstract

本申请提供一种铆钉和连接件的连接结构、穿孔式电池盖板及电池，该电池盖板中的铆钉内部设有通孔，连接件极耳连接部的上端设有突出部，所述通孔与所述突出部能够适配连接。本申请基于铆钉和连接件的上述连接结构设计出穿孔式电池盖板，所述通孔依次穿过盖板止动架、基板、绝缘板和压板的同轴通孔实现与所述突出部的连接。该盖板组装成的电池，将极耳连接部的水平面通过铆钉直接限位于止动架的下端，给电池节省了更多的内部空间，为多叠芯电池的开发提供便利；另极耳连接部的下端面处于同一平面，最大保留极耳连接区域，降低了极耳的焊接难度，提高极耳通流的稳定性。

Claims

1. A connection structure for rivets and connectors in a battery cover, characterized in that, The rivet (1) is a column (102), and the column (102) has a through hole (103) inside. The connector (2) includes a tab connection part (202), one end of which is provided with a wide-face boss (2021), and the upper end of the wide-face boss (2021) is provided with a protrusion (201). The through hole (103) is adapted to be connected to the protrusion (201).

2. The rivet and connector connection structure in a battery cover plate according to claim 1, wherein The electrode connecting part (202) is provided in several parts, and the lower end face of each electrode connecting part (202) is located on the same plane.

3. The rivet and connector connection structure in a battery cover plate according to claim 1, wherein The through hole (103) includes a first hole end (1031) and a second hole end (1032), and the second hole end (1032) is fixedly connected to the upper end face of the wide-face boss (2021).

4. The rivet and connector connection structure in a battery cover plate according to claim 3, characterized by, The radial dimension of the first hole end (1031) is less than or equal to the radial dimension of the second hole end (1032), and the radial dimension of the first hole end (1031) is 5~20 mm.

5. A battery cover plate characterized by, The battery cover includes a connection structure for rivets and connectors as described in any one of claims 1-4, and further includes a pressure plate (3); the pressure plate (3) is located at the top of the battery cover, an insulating plate (4) is provided below the pressure plate (3), a base plate (5) is provided below the insulating plate (4), and a stop frame (6) is provided below the base plate (5).

6. A battery cover plate according to claim 5, wherein, The pressure plate (3), the insulating plate (4), the base plate (5) and the stop frame (6) are respectively provided with a first through hole (301), a second through hole (401), a third through hole (501) and a fourth through hole (601); the column (102) passes through the fourth through hole (601), the third through hole (501), the second through hole (401) and the first through hole (301) from top to bottom. The top end of the column (102) is fixedly connected to the pressure plate (3) and the bottom end of the column (102) is fixedly connected to the connector (2).

7. A battery cover plate according to claim 6, wherein The battery cover also includes a sealing ring (7), which is sleeved on the outside of the column (102) and includes several sealing parts. The sealing parts are respectively located between the inner wall of the third through hole (501), the inner wall of the fourth through hole (601), the lower end face of the insulating plate (4), and the upper end face of the stop frame (6), sealing the rivet (1) with the insulating plate (4), the base plate (5), and the stop frame (6).

8. The battery cover plate of claim 7, wherein, The substrate (5) has a reinforcing rib (502) on its lower end face.

9. The battery cover plate of claim 7, wherein, The stop bracket (6) is provided with an exhaust port (602).

10. A battery, characterized by Includes a battery cover as described in any one of claims 5-9.

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