Anti-loose electrical connection battery pack

By combining the hydraulic locking structure and the drive mechanism, the problem of loosening of electrical connections under vibration and thermal expansion and contraction is solved, achieving high reliability and convenient maintenance of the battery pack, and improving the safety and stability of the battery pack.

CN121584282BActive Publication Date: 2026-05-05安徽大恒新能源技术有限公司
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Patent Information

Application Number
CN202610083996.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-01-22
Publication Date
2026-05-05
Estimated Expiration
2046-01-22

AI Technical Summary

Technical Problem

Existing methods for preventing loosening of electrical connections lack reliability and durability under extreme conditions. Traditional bolted connections are prone to loosening in environments of vibration and thermal expansion and contraction, making maintenance inconvenient.

Method used

The system employs a hydraulic locking structure, which uses an incompressible fluid medium to lock the nut through the cooperation of a limit ring and a sealing ring. Combined with a drive mechanism to control the movement of the plug, it ensures the stability and convenience of the connection.

Benefits of technology

It achieves reliable and stable electrical connections under harsh working conditions, reduces maintenance costs throughout the entire life cycle, and is easy to operate, adapting to changes in vibration and thermal expansion and contraction.

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Abstract

The application relates to the technical field of battery packs, in particular to an anti-loose electrical connection battery pack. The technical scheme comprises a shell, an internal battery pack and a liquid cooling channel. The innovation is that a hydraulic locking module is integrated into the connecting part of the copper bar leading out of the shell. The module fills transmission medium in the flow cavity of the limiting ring, and controls the in-out of the plug by using a driving mechanism, so as to block or release the rotating path of the blocking block linked with the nut. When the plug blocks the flow cavity, a hydraulic lock is formed, and the nut is completely prevented from loosening; when the plug exits, the nut can be normally screwed. The application fundamentally solves the problem that the electrical connection is prone to loosening in a vibrating environment, is high in safety and convenient in operation and maintenance.
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