Top cover structure of battery

Abstract

The invention relates to a top cover structure of a battery, belonging to the technical field of batteries. The top cover structure comprises a top cover sheet, a support arranged at the bottom of thetop cover sheet and a conductive block, wherein the bottom of the support abuts against the bottom of the top cover sheet; the conductive block comprises a bed plate and two cylinders formed on the bed plate and arranged at an interval; two cylinder holes corresponding to the two cylinders are formed in the top cover sheet; the two cylinders respectively pass through the two cylinders and extendto positions above the top cover sheet so as to form extension segments respectively; and the two extension segments are respectively in riveted joint with riveted joint pieces arranged on the top cover sheet. According to the invention, the two cylinders arranged at an interval are formed on the bed plate, the two cylinder holes corresponding to the two cylinders are formed in the top cover sheet, and the two cylinders respectively pass through the two cylinders and extend to positions above the top cover sheet, so the two cylinders perform a two-point positioning function; and thus, the conductive block is more firmly connected with the top cover sheet and is protected from twisting relative to the top cover sheet under the action of external acting force.

Description

technical field [0001] The invention relates to the technical field of batteries, especially the top cover structure of batteries. Background technique [0002] At present, with the increasing miniaturization, portability and portability of electronic products, such as cameras, notebooks and mobile phones, the driving power of these electronic products is also developing in the direction of high capacity, high safety and portability. Its excellent characteristics such as high capacity are widely used in electronic products. [0003] The lithium battery includes a casing, a top cover sheet, and a battery cell, etc., wherein the battery cell is placed inside the casing, the upper end of the casing has an upper end opening, and the top cover sheet closes the opening at the upper end of the casing, and the top cover sheet is provided with a Conductive block, the lower part of the conductive block is connected to the battery cell through the conductive sheet, and the upper end e...

AI Technical Summary

Problems solved by technology

[0005] The top cover structure of the battery provided by the present invention aims to solve the problem in the prior art that when the conductive block is subjected to an external force during the use of the lithium battery, the conductive block is prone to twist relative to the top cover sheet, causing the lithium battery to twist. Changes in the internal structure reduce the service life of lithium batteries, which is not conducive to the use of lithium batteries

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