A locking mechanism for an electric vehicle battery

By designing a locking mechanism with two interlocking locks on electric vehicles, the problems of mismatch between lock cylinder and lock body and tool corrosion are solved, achieving stable locking of the battery under bumpy road conditions and improving the applicability and safety of the battery swapping station.

CN116176251BActive Publication Date: 2026-07-21CHINA FAW CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA FAW CO LTD
Filing Date
2022-12-27
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing electric vehicle battery swapping solutions, the lock cylinder and lock body are incompatible, which prevents widespread adoption. Furthermore, the unlocking tools are prone to corrosion, and there is a safety hazard of the battery falling off during bumpy rides.

Method used

Design a locking mechanism for an electric vehicle battery, which uses two interlocking locks. The first and second lock bodies are respectively installed on the electric vehicle. The sloping design ensures that the locked body becomes tighter and tighter as it is locked in the lock. Unlocking is achieved by driving a steel wire rope with a motor or by using a manual tool, thus avoiding the need for additional unlocking tools.

Benefits of technology

It expands the applicability of the locking mechanism, reduces the risk of unlocking the lock body due to bumps, enhances security, and simplifies battery replacement.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116176251B_ABST
    Figure CN116176251B_ABST
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Abstract

The application relates to a locking mechanism of an electric vehicle battery, which comprises a fixing base, a first lock body and a second lock body arranged on the fixing base, the first lock body comprising a first lock and a lock spring, the second lock body comprising a rotating shaft and a second lock, the second lock being provided with a lock opening, the battery being provided with a locked body, the locked body being arranged in the lock opening, the lock opening being open on the side, and the locked body being inserted from the side; the position where the first lock contacts the locked body is a first inclined surface, the position where the second lock contacts the locked body is a second inclined surface, the first inclined surface and the second inclined surface are both inclined towards the inside of the lock opening, and the first lock presses the locked body tightly at the lower part of the lock opening. The two lock bodies are arranged on the electric vehicle at the same time and are respectively provided with the inclined surfaces, the locked body can be moved towards the inside of the lock opening, the locked body is locked more tightly, the two lock bodies need to be unlocked at the same time to realize the dismounting of the battery during unlocking, the occurrence of safety accidents is reduced, unlocking tools are no longer needed, and the locking mechanism can be adapted to various batteries.
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