混合动力汽车用镍氢电池的散热结构分析  

The cooling structure of Ni-MH batteries in hybrid-electric vehicles

作　　者：杨亚联[1] 张昕[1] 李隆键[1] 秦大同[1] 胡明辉[1] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400030

出　　处：《重庆大学学报（自然科学版）》2009年第4期415-419,共5页Journal of Chongqing University

基　　金：国家自然科学基金资助项目(50305037);重庆市自然科学基金资助项目(2006BB3195);重庆市科技攻关重大专项资助项目(2006AA6006)

摘　　要：以混合动力车用镍氢电池为研究对象,利用计算流体动力学分析软件对现有电池组的散热结构进行了流场和温度场的仿真分析,研究结果表明现有电池组的温度场均匀性较差。通过调整挡板及电池的位置、改变电池倾斜角度和电池的间距、施加挡风结构、包覆保温层等方法改善了电池组冷却气流分布和电池组温度场均匀性,其中包覆保温层的效果最好。为混合动力车用镍氢电池热管理的设计提供了依据。Focusing on Ni-MH batteries used in hybrid-electric vehicles （HEV）, a simulation analysis of the flow and temperature fields of the cooling structure in existing batteries is carried out using computational fluid dynamics software. The results show that the temperature uniformity is poor. The uniformity of the flow and the temperature fields is improved by adjusting the baffle and battery positions, changing the tilt angle and the distance between the batteries, inserting wind plates and a coating insulation layer. The coating insulation layer achieves the best effect. Further simulation shows that the coating insulation layer method has the best effects. The results provide the design basis for thermal management program of Ni-MH batteries in HEV.

关 键 词：混合动力汽车 镍氢电池 散热结构 温度场 

分 类 号：TH132.46[机械工程—机械制造及自动化]