混合动力汽车用氢镍电池组冷却系统研究

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英文篇名：Research on the cooling system of nickel-hydrogen (Ni-MH) battery package for hybrid electric vehicle 作者：赵永金 ; 廖萍 ; 朱建新 ; 储爱华 ; 周陈全 英文作者：ZHAO Yong-jin;LIAO Ping;ZHU Jian-xin;CHU Ai-hua;ZHOU Chen-quan;School of Mechanical Engineering,Nantong University;Corun Hybrid Technology Co.,Ltd.; 关键词：混合动力汽车 ; 氢镍电池 ; 冷却系统 ; CFD ; 温度场 英文关键词：hybrid electric vehicle;;Ni-MH battery;;cooling system;;CFD;;temperature field 中文刊名：DYJS 英文刊名：Chinese Journal of Power Sources 机构：南通大学机械工程学院;科力远混合动力技术有限公司; 出版日期：2019-06-20 出版单位：电源技术 年：2019 期：v.43;No.345 基金：江苏省优势学科建设工程资助项目(BY2015047-2);; 国家“863”计划(2011AA11A201);; 国家科技支撑计划项目(2011BAG-02B10) 语种：中文; 页：DYJS201906034 页数：4 CN：06 ISSN：12-1126/TM 分类号：110-112+116

摘要

为解决某款混合动力汽车用圆柱形氢镍电池组的散热问题,设计了非直接接触液冷式冷却系统,建立了电池组温度场理论分析模型;利用计算流体力学(computational fluid dynamic,CFD)仿真软件建立电池组有限元分析模型,通过仿真和实验相结合的手段获得了电池组的温度场分布。结果表明,电池组在50℃高温环境,平均充放电功率为6 kW时,该冷却系统能够使其最高温度低于45℃,并有效控制各单体电池之间温差在5℃以内,满足电池组的散热要求,防止发生热失控。
        An indirect-contact liquid cooling system is designed to meet the thermal management requirements of a battery pack for a hybrid electric vehicle(HEV). The package is consisted of spiral nickel-hydrogen cells. Theoretical heat transfer model of the battery package is established. Then a finite element analysis model of the package is established with computational fluid dynamics software. The temperature field of the package is obtained through the simulation and confirmed by the experiment results. The result shows that, when the ambient temperature is 50 ℃and the average charge-discharge power is 6 kW, the cooling system can keep the maximum temperature of the cells below 45 ℃ and the temperature difference between individual cells within 5 ℃.The system meets the thermal management requirements and it is able to prevent thermal runaway.

引文

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