电池是混合动力汽车的核心部件之一,良好、均匀的冷却有利于保证电池的持久、正常使用。本文通过建立不同流道布局方式进行相同参数的仿真分析,互为对照,尝试获得最佳流道布局方式。发现,电池液冷流道在设计时,流道首先通入温度最高区域,有利于降低电池的最高温度和提高电池表面温度均匀性;流道长度应尽量短,较短的管路长度能够降低管路压力损失,提高冷却液在管路内流动速度,从而促进冷却液循环,提高冷却效率。针对本文管路布局方式,布局(c)冷却效果最佳,不仅冷却效果好,而且用料更少,压力损失更小,为同类型电池组流道布局提供参考。

Battery is one of the core components of hybrid electric vehicle.Effective and uniform cooling is helpful to improve the service life of battery.This paper tries to optimize the channel layout by simulating different flow channels with the same parameters.Each case was compared with each other.It is concluded that the flow channel should covers the hottest region firstly when designed,which could not only reduce the maximum temperature of battery,but also improve the surface temperature uniformity;the length of the flow channel should be as short as possible,shorter flow channel could reduce the pressure loss,improve the flow speed of coolant,so as to promote the circulation of coolant and improve the cooling efficiency.The layout(c)has the best cooling effect among others,which provides a reference for the channel layout of the same type of battery packs.