The invention relates to an electric automobile heat pump system and a heat management method, and belongs to the technical field of electric automobile heat management, the electric automobile heat pump system comprises a refrigerant loop and a cooling liquid loop, and the refrigerant loop and the cooling liquid loop are thermally coupled through a water cooling condenser and a battery cooler. According to the system, the evaporation temperature of the heat pump system can be increased through self heating capacity compensation of the heat pump system, and then the operation range of the heat pump system in a low-temperature environment is widened, so that a heating mode can be operated in the low-temperature environment of-10 DEG C or below. When the system operates in the heating mode, the evaporator is used for dehumidification while heat is provided for the interior of the vehicle, the fogging risk is avoided, and the driving safety and comfort are improved. Meanwhile, when the system operates in a heating mode, air heat recovery and electric drive waste heat recovery in a passenger compartment are achieved, and energy consumption is reduced; in addition, the performance is improved because the refrigerant demand flow of the system is reduced and the rotating speed of the compressor is reduced.

    本发明涉及一种电动汽车热泵系统、热管理方法,属于电动汽车热管理技术领域,包括冷媒回路和冷却液回路,冷媒回路与冷却液回路彼此之间通过水冷冷凝器、电池冷却器进行热耦合。该系统能够通过热泵系统自身制热量补偿来提升热泵系统蒸发温度,进而拓宽了热泵系统在低温环境的运行范围,因此能在‑10℃以下低温环境下运行制热模式。该系统运行制热模式时,在向车内提供热量的同时利用蒸发器进行除湿,避免起雾风险,提升行车安全性和舒适性。同时,该系统运行制热模式时,实现乘员舱内空气热回收及电驱余热回收,减少了能耗;另外由于系统冷媒需求流量降低,压缩机转速降低,因此性能提升。


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    Title :

    Electric automobile heat pump system and heat management method


    Additional title:

    一种电动汽车热泵系统、热管理方法


    Contributors:
    JIANG MINGYUAN (author) / HU HAO (author) / TAN QIKAI (author) / TAN BAICHUAN (author) / HUANG CHUAN (author) / GUAN MINGHUA (author)

    Publication date :

    2024-01-30


    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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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