The invention discloses a heat pump system, a refrigerant backflow control method and device thereof and a vehicle, the heat pump system comprises a first refrigerant loop, a second refrigerant loop and an on-off valve, and the method comprises the steps that in response to a heating mode instruction, the on-off valve is controlled to enable the first refrigerant loop to heat a target area; the high pressure of the first refrigerant loop is obtained; and when the high pressure is larger than a first preset pressure threshold value, the on-off valve is controlled to enable the second refrigerant loop and the first refrigerant loop to be connected in series, so that the target area is heated through the second refrigerant loop and the first refrigerant loop. According to the method, the target area can be heated twice by controlling the on-off valve, so that the heat exchange efficiency of the heat pump system can be improved, the energy consumption of the system can be reduced, and refrigerant backflow can be avoided.

    本发明公开了一种热泵系统及其制冷剂回流控制方法、装置和车辆,热泵系统包括第一制冷剂回路、第二制冷剂回路和通断阀,方法包括:响应于制热模式指令,控制通断阀使第一制冷剂回路对目标区域制热;获取第一制冷剂回路的高压压力;在高压压力大于第一预设压力阈值时,控制通断阀使第二制冷剂回路与第一制冷剂回路串联,以通过第二制冷剂回路和第一制冷剂回路对目标区域制热。本发明的方法可以通过控制通断阀以实现对目标区域进行两次加热,从而能够提升热泵系统的换热效率,降低系统的能耗,并且能够避免制冷剂回流。


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    Title :

    Heat pump system, refrigerant backflow control method and device thereof and vehicle


    Additional title:

    热泵系统及其制冷剂回流控制方法、装置和车辆


    Contributors:
    KIM SHIN-RYANG (author) / CHEN CHONG (author) / SONG XIAOZHONG (author) / WANG YUNTENG (author)

    Publication date :

    2024-01-12


    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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