Vehicle with battery replacement collet system, power battery box assembly and battery replacement method

By using a locking mechanism with a battery swapping base system and hoisting equipment, efficient battery swapping for new energy vehicles is achieved, solving the problems of high battery box assembly height and high center of gravity, improving safety and energy efficiency, and meeting the requirements of short-distance transportation and environmental protection.

CN121848910APending Publication Date: 2026-04-14SHANGHAI NENGHUI TECH CO LTD
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Patent Information

Application Number
CN202610032295.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-12
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The battery pack assembly of new energy vehicles is tall, has a high center of gravity, low safety, a high probability of vehicle accidents, a large frontal area, and high energy consumption, making it difficult to meet the requirements of short-distance transportation and environmental protection.

Method used

The system employs a battery swapping base. The old battery box is unlocked by a locking mechanism, the new battery box is removed by hoisting equipment, and then hoisted onto the battery swapping base. The new battery box is precisely positioned using a coarse guide structure and positioning pins, and is clamped and fixed by a lateral locking mechanism to complete the battery swapping operation.

Benefits of technology

The height of the battery pack assembly has been reduced, the center of gravity has been lowered, safety has been improved, the probability of vehicle accidents has been reduced, energy consumption has been saved, the stability and efficiency of the battery swapping process have been improved, and the requirements for short-distance transportation and environmental protection have been met.

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Abstract

The invention provides a vehicle with a battery changing bottom support system, a power battery box assembly and a battery changing method.The vehicle comprises a battery changing bottom support, the top face of the battery changing bottom support is connected with a battery box, the battery box comprises a first rectangular frame, and the first rectangular frame comprises a hoisting frame at the top, a bottom frame at the bottom, a left frame and a right kettle frame; a battery cluster formed by stacking a plurality of power batteries PACK is arranged in the first rectangular frame, and a water cooling unit and a battery management system PDU are arranged in the hoisting frame; a lateral locking mechanism for limiting the battery box is arranged in the bottom frame, the lateral locking mechanism comprises a lateral pin, and the lateral pin can clamp the battery box and the battery replacing bottom support or is separated from the battery replacing bottom support under the hoisting of hoisting equipment. The spine-free tower type power battery is adopted, and in a limited space, the height of a battery box assembly of a new energy vehicle is reduced, the gravity center is lowered, the safety of the vehicle is improved, and the probability of vehicle accidents is reduced.
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