锂离子电池分岔水冷板结构研究及优化

Structure design and optimization of bifurcated water cold plate of lithium ion battery

将单进出水口的平行流道水冷板与微通道水冷板分岔结构相结合,建立不同单进出水口分岔流道水冷板。采用计算流体力学的方法,研究支路流道宽度对两种分岔流道水冷板冷却性能的影响规律;并进一步分析流道宽度、路径对两侧分岔流道水冷板(以下简称侧分水冷板)冷却性能的影响规律。研究表明:在适当流道宽度下,侧分水冷板具有更优的散热效果。调整流道宽度对侧分水冷板的冷却性能提升不明显。增加流道路径能较好地增强水冷板的散热能力;次支路与支路流道之间的夹角越小,散热效果越好。

The parallel channel water cooling plate of single inlet and outlet was combined with the bifurcation structure of micro-channel water cooling plate,and the bifurcation structure of different single inlet and outlet water cooling plate was established.Using computational fluid dynamics method,the effect of the width of the branch pipe on the cooling performance of the water cooling plate of two kinds of diverging pipes was studied.And further analyze the influence of the width and path of the flow channel on the cooling performance of two side bifurcated flow channel water cooling plate.The results show that the side cooling plate has better heat dissipation effect with proper channel width.The cooling performance of the side water cooling plate is not improved obviously by adjusting the flow passage width.Increasing the flow path can enhance the heat dissipation capacity of the water cooling plate.The smaller the angle between the sub-branch and the branch channel,the better the heat dissipation effect.