The invention discloses a thermal management system of an electric vehicle, which solves the problem of resource waste caused by insufficient heat dissipation under high-temperature refrigeration and incomplete waste heat recovery in the prior art, and comprises a plurality of working modes. The multiple working modes comprise passenger compartment refrigeration, hybrid dual refrigeration, battery refrigeration, refrigeration dehumidification, heating dehumidification, passenger compartment heating, heat pump waste heat recovery, independent PTC heating and battery heating. The system comprises various loops in hardware connection, and the loops comprise a refrigerant loop, a motor heat dissipation water loop, a battery heat dissipation water loop and a heating water loop. Each working state corresponds to one or more loops; the loop is provided with various devices, and the devices comprise a liquid cooling heat exchanger used for increasing the heat exchange amount of the heat system and a highly-integrated seven-way valve. The liquid cooling heat exchanger and the seven-way valve are combined for use, a motor, a battery and a passenger compartment of the whole vehicle can be highly coupled, and higher refrigeration performance and a better energy-saving effect are achieved.

    本发明公开了一种电动车热管理系统,克服了现有技术高温制冷下散热不足同时对于余热的回收不彻底造成的资源浪费的问题,包括多种工作模式,所述的多种工作模式包括乘员舱制冷、混合双制冷、电池制冷、制冷除湿、制热除湿、乘员舱制热、热泵余热回收、单独PTC加热、电池加热;系统在硬件连接上包括多种回路,所述回路包括制冷剂回路、电机散热水回路、电池散热水回路、采暖水回路;每种工作状态对应一种或多种回路;所述的回路上设有多种器件,所述器件包括用于增加热系统换热量的液冷换热器和高度集成的七通阀。本发明采用液冷换热器和七通阀组合使用,可以将整车电机、电池、乘员舱高度耦合起来,达成更强的制冷性能,更优的节能效果。


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    Title :

    Electric vehicle thermal management system


    Additional title:

    一种电动车热管理系统


    Contributors:
    LIANG JIE (author) / ZHANG QIYE (author) / REN JINLONG (author) / SU LI (author) / YU ZHINAN (author) / HUANG SHUAI (author)

    Publication date :

    2023-03-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht



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