A lock body mechanism for new energy vehicle battery replacement

By combining pneumatic and magnetic sealing mechanisms, dust and mud are prevented from entering the threaded structure of the battery swapping lock mechanism in new energy vehicles. This solves the problem of threaded structure failure in harsh environments and enables the sealing components to work effectively for a long time and the bolts and nuts to connect stably.

CN122068219BActive Publication Date: 2026-06-26ZHEJIANG KELI VEHICLE CONTROL SYST
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Patent Information

Application Number
CN202610534020.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-04-22
Publication Date
2026-06-26
Estimated Expiration
2046-04-22

AI Technical Summary

Technical Problem

Existing battery swapping lock mechanisms for new energy vehicles cannot effectively prevent dust and dirt from contacting the threads, leading to thread structure failure, especially in harsh environments where they are prone to deformation and failure.

Method used

The lock body structure combines a pneumatic sealing mechanism and a magnetic sealing mechanism, including the design of an elastic air ring, a main magnetic ring, and a secondary magnetic ring. The pneumatic sealing mechanism prevents dust and dirt from entering the threaded structure, while the magnetic sealing mechanism avoids excessive stretching of the flexible sealing gasket, ensuring the stable operation of the nut and the fixing bolt.

Benefits of technology

It effectively prevents dust and sand from entering the threaded structure, extends the service life of the seals, ensures the stable and effective operation of the nuts and fixing bolts, reduces wear, and improves the reliability of the battery swapping process.

✦ Generated by Eureka AI based on patent content.
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Abstract

The application relates to the technical field of new energy automobile battery replacement, and specifically discloses a lock body mechanism for new energy automobile battery replacement, which comprises a fixed shell, a nut connected to the inner side of the lower end of the fixed shell through a bearing, and a clamping spring arranged in the inner side of the lower end of the fixed shell. A drop-proof ring is in contact with and supports the upper surface of the clamping spring. A supporting spring is arranged on the outer side of the nut between the upper surface of the drop-proof ring and the lower surface of the upper end of the nut. A pneumatic sealing mechanism is installed on the nut. The upper end of the fixed shell is fixedly connected with a guide pipe coaxial with the fixed shell. The inner side of the guide pipe is provided with guide grooves at equal angles. A fixing bolt penetrates through the guide pipe. The application can prevent dust and sand from entering the thread structure between the fixing bolt and the nut, thereby ensuring that the fixing bolt and the nut can stably and effectively work.
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