Battery pack and electric device

By designing a structure in the battery pack where the exhaust channel of the thermal management component is connected to the explosion-proof port, the high-temperature and high-pressure gas ejected from the explosion-proof component changes the volume of the exhaust channel under pressure, thus solving the problem of battery pack thermal runaway caused by insufficient exhaust space, and achieving improved safety performance and reduced costs.

CN224481144UActive Publication Date: 2026-07-10SUNWODA MOBILITY ENERGY TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUNWODA MOBILITY ENERGY TECHNOLOGY CO LTD
Filing Date
2025-06-11
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In existing technologies, insufficient exhaust space created by the exhaust channels leads to thermal runaway of the battery pack.

Method used

Design a battery pack structure in which the thermal management component includes a heat exchanger. The exhaust channel of the heat exchanger extending along a first direction is connected to an explosion-proof port. After the high-temperature and high-pressure gas ejected from the explosion-proof port enters the exhaust channel through the explosion-proof port, part of the structure of the heat exchanger causes the volume of the exhaust channel to change under pressure, thereby realizing the rapid discharge of the high-temperature and high-pressure gas.

Benefits of technology

By rapidly removing high-temperature, high-pressure gases, thermal runaway of the battery pack caused by insufficient exhaust space is avoided, thus improving the safety performance of the battery pack and reducing manufacturing costs.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224481144U_ABST
    Figure CN224481144U_ABST
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Abstract

The utility model embodiment provides a kind of battery pack and electrical equipment.The battery pack includes the electric core component of hot and is arranged in the side of heat management component along second direction, and the wall portion of electric core component is provided with explosion-proof piece along second direction to heat management component;Heat management component includes heat exchange element, and heat exchange element is provided with along the exhaust passage of first direction extension, and the side of heat exchange element along second direction is close to electric core component and is equipped with the explosion-proof mouth of explosion-proof mouth intercommunication with exhaust passage, and explosion-proof mouth and explosion-proof piece at least partly opposite, and the volume of exhaust passage can change under the pressure action at least partly structure of heat exchange element.Such, when the high-temperature high-pressure gas of explosion-proof piece spouts enters into exhaust passage through explosion-proof mouth, with high-temperature high-pressure gas constantly enters, under the gas pressure of high-temperature high-pressure gas, at least partly structure of heat exchange element changes, finally makes the volume of exhaust passage also change, so that high-temperature high-pressure gas can be discharged with exhaust passage quickly.
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