A liquid-cooled plate for power battery of electric vehicle

Abstract

A liquid-cooled plate for a power battery of an electric vehicle belongs to the technical field of electric vehicles, the liquid-cooled plate for a power battery of an electric vehicle comprises an integrally formed liquid-cooled plate body, both ends of the liquid-cooled plate body are provided with openings and a flow channel structure is arranged inside the liquid-cooled plate body, the two ends of the liquid-cooled plate body are connected with a first hollow end plate and a second hollow end plate communicating with the liquid-cooled plate body in a sealing manner, a water inlet joint isarranged on the first hollow end plate, a water outlet joint is arranged on the second hollow end plate, the invention has the beneficial effect that, the electric vehicle power battery liquid-cooledplate has the advantages of simple and stable overall structure, low manufacturing cost, increases heat exchange contact area and contact time with the power battery module, improved heat exchange efficiency, improved cooling effect of the power battery module, and light overall weight, which meets the lightweight requirements of the whole vehicle.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a liquid cooling plate for a power battery of an electric vehicle. Background technique [0002] With the development of social economy and the further increase of energy demand, the voice of new energy technology is getting higher and higher, and the development of electric vehicles has become the general trend. As the core part of electric vehicles, battery performance and service life directly determine the performance and cost of electric vehicles. [0003] Due to the advantages of long life, low self-discharge rate, high specific power, high energy density and no pollution, lithium-ion power batteries have become the main power batteries used in electric vehicles. However, there is a problem with the optimal temperature range for lithium-ion battery discharge. When the battery temperature is too high or too low, exceeding its allowable operating temperature range,...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above-mentioned technical problems, the present invention provides a liquid cold plate for electric vehicle power battery, which mainly solves the problems of complex structure and high manufacturing cost of the existing liquid cold plate. The purpose is to design a simple and stable overall structure , The liquid cold plate with low manufacturing cost can increase the heat exchange contact area and contact time with the power battery module, improve the heat dissipation and cooling effect, and the overall weight is light, which can meet the needs of lightweight vehicles

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