电动汽车动力电池组液冷散热优化
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TK 124

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河南省科技攻关项目(222102310135, 212102210231,232102230031);中原科技创新领军人才(234200510011);郑州市协同创新专项(2021ZDPY0107)


Optimization of Liquid Cooling Heat Dissipation for Electric Vehicle Power Battery Packs
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    摘要:

    电动汽车动力电池在充放电过程中快速产生大量的热量,开展高效散热设计有利于提升电池组工作效率及其安全性。采用冷板和电池组相结合的方式进行电池组液冷散热设计,以50℃作为临界最高温度进行研究,结果表明冷板与电池组采用侧面侧方布置时电池表面平均温度最低,温度均匀性较好。满足散热设计对应的相间侧向所需质量流量最小且为0.05 kg/s,而相间上向模型的压降最小。因此,电池组散热设计时可优先选择电池单体与冷板相间布置的结构。

    Abstract:

    The charging and discharging process of electric vehicle power batteries generates a large amount of heat, and the development of an efficient heat dissipation design is conducive to improving the efficiency and safety of the battery packs. A combination of cold plate and battery packs was used for the liquid cooling heat dissipation design of the battery packs. The critical maximum temperature was set to 50°C here and the results showed that the average battery temperature was lowest and the temperature uniformity was better when the cold plate and battery packs were arranged in a side-to-side lateral direction. The minimum required mass flow rate was 0.05 kg/s for the inter-phase lateral model, while the inter-phase upward model had the lowest pressure drop. Therefore, a structure with an interphase arrangement of power battery and cold plates can be preferred for the thermal design of the battery packs.

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王燕令,平京玉,刘鹤,等. 电动汽车动力电池组液冷散热优化[J]. 科学技术与工程, 2024, 24(18): 7662-7668.
Wang Yanling, PING Jingyu, Liu He, et al. Optimization of Liquid Cooling Heat Dissipation for Electric Vehicle Power Battery Packs[J]. Science Technology and Engineering,2024,24(18):7662-7668.

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历史
  • 收稿日期:2023-06-26
  • 最后修改日期:2024-03-31
  • 录用日期:2023-11-14
  • 在线发布日期: 2024-07-05
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