某电动全地形车舱内散热的分析及改进

考虑舱内发热零部件的散热及空气流动等因素,建立了电动全地形车动力舱模型。利用STAR CCM＋软件对舱内流场进行了数值模拟,获取了舱内空气的速度和温度分布特性及零部件表面的温度分布,找出了舱内结构布置对零部件温度分布的影响规律,并根据模拟结果对舱内结构布置做了相应改进,避免电池和控制器的过热失效。同时,通过对该车型的计算,为后续类似车型的布置优化奠定了基础。

Analysis and Improvement of Cooling Characteristics in Cabin of an Electric-Driven All-terrain Vehicle

This paper focused on the air flow of cabin and the cooling of working parts, and established a certain electric-driven all-terrain vehicle cabin model. By using STRAR CCM ＋ , this paper simulated the air flow characteristics to obtain the air velocity and temperature distribution in the cabin and also the tem- perature distribution on the surface of working parts. Finally we found how the layout in cabin effected the temperature distribution, so as to rearrange the layout of the cabin to avoid overheating of the battery and controller. Meanwhile, this paper lays a foundation of layout optimization for the subsequent similar vehi- cles through the calculating.