Thermal management device for battery safety

Abstract

The invention discloses a thermal management device for battery safety, which includes a heat dissipation device, a recovery device and a safety device. tube and condensing fins arranged on the guide tube, the liquid storage bin is filled with phase change materials; the safety device includes a safety bin installed above the battery and equipped with a fire extinguishing agent, and the inner wall of the safety bin is made of heat insulating material The bottom is made to have a buckle opening, and the opening is covered by a cover plate made of a fusible material. The battery safety thermal management device of the present invention can take protective measures in time when the overall temperature of the battery is too high to avoid safety accidents, and balance the temperature difference inside and between the single cells, reduce heat accumulation, and prolong the service life of the battery , to provide a good working temperature environment for the single battery.

Description

technical field [0001] The invention relates to the field of electric vehicle batteries, in particular to a battery safety thermal management device. Background technique [0002] With the diversification of the automobile industry and the increasingly serious environmental problems, the new energy automobile industry is developing rapidly. Among them, electric vehicles have a smaller impact on the environment than traditional vehicles, and their use is becoming more and more extensive. Electric vehicles refer to vehicles powered by on-board power supplies. , use motors to drive wheels, vehicles that meet the requirements of road traffic and safety regulations. As the heart of electric vehicles, batteries are the key to the development of the electric vehicle industry. In addition to the cruising range of batteries is the bottleneck of the development of electric vehicles, battery safety issues It should not be underestimated. [0003] The battery management system is an im...

AI Technical Summary

Problems solved by technology

[0005] New energy vehicles do not need petroleum resources and can run only on electric energy. They are environmentally friendly and energy-saving. However, they must face the problem of generating a lot of heat during the battery discharge process when they rely on batteries. In severe cases, fires or even explosions occur. Therefore, the safety of automotive batteries not to be underestimated

[0006] Because the battery will generate a lot of heat during charging or driving of an electric vehicle, if the battery cannot be dissipated quickly and effectively, and the temperature difference between the cells inside and between the cells cannot be balanced, it will cause heat accumulation and affect the battery. Life, serious will cause battery explosion

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