Battery safety heat management device

Abstract

The present invention discloses a battery safety heat management device. The battery safety heat management device comprises a cooling device, a recovery device and a safety device. The cooling devicecomprises a liquid storage cabin capable of heat conduction and attached to the surface of a battery; the recovery device comprises a diversion tube connected with the liquid storage cabin and condensation fins arranged on the diversion tube, and the liquid storage cabin contains phase-change materials; and the safety device comprises a safety cabin provided with a fire extinguishing agent and arranged at the upper portion of the battery, the inner wall of the safety cabin is made of thermal insulation materials, the bottom portion of the safety cabin is provided with buckled open holes, andthe open holes can be covered with a cover plate made of fusible materials.

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...

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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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