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微型纯电动汽车的进风口可以布置在多个位置,将进风口布置在微型纯电动汽车动力舱前端,研究这种进风方式的散热效率;不同进出风模式是否可以改善动力舱的散热性能也是一个值得关注的问题.研究结果表明:电池组发热量、车外环境温度及进风温度对动力舱内的温度影响较大,进风口数目及动力舱进风速度对其影响较小;当进风温度低于环境温度时,增加进风口数目和提高车速可以提高散热性能,当进风温度高于环境温度时,减少进风口数目和降低车速可以提高散热性能.上述结论为微型纯电动汽车动力舱散热方案实施提供了参考依据.
Micro-pure electric car’s air inlet can be arranged in multiple locations, the air inlet is arranged in front of the micro-pure electric car powerhouse to study the cooling efficiency of this approach into the wind; whether the different modes of intake and exhaust can improve the thermal performance of the power cabin is A problem of concern.Research results show that the battery pack heat, ambient temperature and inlet air temperature have a significant impact on the temperature in the power cabin, and the number of air inlets and the speed of the inlet of the power cabin have less impact on it. When the air temperature is lower than the ambient temperature, increasing the number of air inlets and increasing the speed of the vehicle can improve the heat dissipation performance, and when the air inlet temperature is higher than the ambient temperature, reducing the number of air inlets and reducing the vehicle speed can improve the heat dissipation performance. Cabin cooling program provides a reference.