为研究不同流道结构设计对液冷板散热性能、均温性能以及能耗的影响，采用计算流体动力学流固热耦合数值计算方法分析了液冷板结构参数对电动汽车某液冷单元散热性能的影响. 结果表明：中心流道宽度由6 mm增加至31 mm，导热垫表面最大温差降低19.4%，流阻增加14.6%，当采用流道宽度从中间到两侧递减的设计方式，可以改善其散热均温性能且能耗在可接受范围内. 流道深度由5 mm减小至2 mm，表面最大温差降低36.7%，流阻增大了3.3倍，减小流道深度能显著改善散热均温性能，同时会显著增加能耗. 添加强化传热结构和在某些工况下改变进出水口位置能改善散热均温性能，同时也会增大流阻和能耗. 研究结果可为液冷板的结构设计提供参考，从而改善电池模组的散热性能.
In order to explore the influence of different flow channel designs on the heat dissipation performance, temperature uniformity and energy consumption of liquid-cooling plates, the Computational Fluid Dynamics(CFD) fluid-solid-heat coupled numerical simulation method is used for investigating the influences of their structural design parameters on the heat dissipation performance of a liquid cooling unit of electric vehicles. The results show that when the width of the central flow channel is increased from 6 mm to 31 mm, the maximum temperature difference on the surface of the thermal conductivty pad is reduced by 19.4%, and the flow resistance is increased by 14.6%，when the width of flow channels is reduced from the middle to both sides, the heat dissipation performance and temperature uniformity can be further improved, and the energy consumption can be controlled within an acceptable range. When the depth of flow channel is decreased from 5 mm to 2 mm, the maximum temperature difference is reduced by 36.7%, but the flow resistance is increased by 3.3 times, reducing the depth of the flow channel can significantly improve the heat dissipation performance and increase the energy consumption. Liquid-cooling plates with enhanced heat transfer structure channel or exchange of inlet and outlet in some cases can improve the heat dissipation and temperature uniformity, and also increase the flow resistance and energy consumption. It is concluded that the structure design of liquid-cooling plates can be supported by this research in order to improve the heat dissipation performance of battery module.