Fusing structure, battery cell adapter sheet, connecting bar sheet and battery pack

By cutting the conductive piece into sub-pieces and connecting it with low melting point fuses, the problem of high temperatures in the narrow flow area of ​​the battery cell adapter sheet is solved, faster fuse and lower normal use of heating are achieved, and the safety and performance stability of the battery are improved.

CN222802065UActive Publication Date: 2025-04-25广州融捷能源科技有限公司
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Patent Information

Application Number
CN202421469677.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-25
Publication Date
2025-04-25
Estimated Expiration
2034-06-25

AI Technical Summary

Technical Problem

In the existing battery technology, the narrow current area of ​​the battery cell adapter generates a lot of heat during normal use, resulting in an increase in the battery temperature and affecting life and performance.

Method used

A fuse structure is adopted. By breaking the conductive piece into a sub-piece, and connecting the sub-piece with a fuse with a melting point lower than the conductive piece, the melting point of the connection part is lower, so that the fuse is blown faster when the abnormal high temperature is abnormal, and the abnormal circuit is cut off.

Benefits of technology

It effectively reduces the heat generated by connecting plates during normal use, improves the performance stability of the product, and improves the safety and energy utilization of the battery.

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Abstract

The utility model relates to the technical field of batteries, in particular to a fusing structure, a battery cell adapter piece, a connecting bar piece and a battery pack, the fusing structure comprises a conductive piece and a fusing piece, the conductive piece comprises a first sub-piece and a second sub-piece, the fusing piece is provided with a first end and a second end, the first end of the fusing piece is connected with the first sub-piece, and the second end of the fusing piece is connected with the second sub-piece. The second end of the fusing piece is connected with the second sub-piece, the fusing piece is made of materials with the melting point smaller than that of the conducting piece, and the fusing piece is made of any one of tin, lead-tin alloy, cadmium-indium-tin alloy or bismuth-tin alloy. According to the invention, the original conducting strip is disconnected, and then the disconnected conducting strip is connected by using the fusing piece with the melting point lower than that of the conducting strip, so that when the conducting strip has high temperature in an abnormal condition, the fusing piece can be fused more quickly, and an abnormal circuit is cut off; a narrow flow part does not need to be arranged on the body of the conducting strip, so that the condition that the body of the connecting strip is heated in normal use is reduced.
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