Power battery water-cooled heat dissipation system of electric automobile

Abstract

The invention discloses a power battery water-cooled heat dissipation system of an electric automobile. The system comprises a battery box and a plurality of battery packs that are mounted in the battery box. The system also includes pulsating heat pipes, a phase change material and a water cooling device. The phase change material is filled in the battery box, the pulsating heat pipes and the battery packs are all inserted in the phase change material. The pulsating heat pipes are located between two adjacent battery packs, and the condensation sections of the pulsating heat pipes pass through the battery box and the water cooling device in order. The system provided in the invention cools the pulsating heat pipes by means of water cooling, improves the heat dissipation efficiency, and is energy saving and environment friendly. At the same time, the stability and continuity of heat dissipation are ensured, and accidents caused by excessive heat accumulation of the battery packs can be avoided.

Description

technical field [0001] The invention relates to the technical field of heat dissipation, in particular to a water-cooled heat dissipation system for a power battery of an electric vehicle. Background technique [0002] With the widespread awareness of environmental protection and energy conservation and emission reduction and the continuous depletion of energy resources, the rational and efficient use of energy and the development of new energy have become an urgent task. In the environment of energy conservation and emission reduction, it is difficult to find a way out for traditional fuel vehicles, while hybrid electric vehicles and pure electric vehicles driven by power batteries as energy sources have received more attention and application. [0003] However, the battery heat dissipation problem of electric vehicles cannot be well solved, so electric vehicles cannot develop rapidly. During the driving process of electric vehicles, the power battery undergoes complex che...

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Problems solved by technology

[0003] However, the battery heat dissipation problem of electric vehicles cannot be well solved, so electric vehicles cannot develop rapidly

During the driving process of electric vehicles, the power battery undergoes complex chemical reactions during the charging and discharging process, which leads to the accumulation of a large amount of heat inside the battery, resulting in an increase in the operating temperature of the battery and a decrease in battery performance, which is manifested as a decrease in battery conversion efficiency and cycle life. Even when the heat accumulates to a certain extent, it can cause the battery to burn or explode, causing serious consequences

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