The invention discloses a refrigerant backflow control method and device of a heat pump system and a vehicle, the heat pump system comprises a first refrigerant loop and a second refrigerant loop, the first refrigerant loop comprises a compressor, a first heat exchanger, a first throttling element, a second heat exchanger and a second throttling element, and the method comprises the steps that in response to a heating instruction, the first heat exchanger is connected with the second heat exchanger; the compressor is controlled to work so as to heat the target area through the first refrigerant loop; acquiring air suction pressure of the compressor and saturation pressure corresponding to the air inlet temperature of the third heat exchanger; and based on the suction pressure and the saturation pressure, the opening degree of the second throttling element and the opening degree of the third throttling element are controlled so that the refrigerant in the first refrigerant loop can be restrained from flowing back to the third heat exchanger. According to the method, the problem that the refrigerant flows back to the evaporator can be solved under the condition that parts are not increased, and the development cost of the system can be reduced.

    本发明公开了一种热泵系统的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和第二制冷剂回路,第一制冷剂回路包括压缩机、第一换热器、第一节流元件、第二换热器和第二节流元件,所述方法包括:响应于制热指令,控制压缩机工作以通过第一制冷剂回路对目标区域制热;获取压缩机的吸气压力和第三换热器的进风温度对应的饱和压力;基于吸气压力和饱和压力,对第二节流元件和第三节流元件进行开度控制,以抑制第一制冷剂回路中的制冷剂回流至第三换热器。本发明的方法,能够实现在不增加部件的情况下解决制冷剂回流蒸发器的问题,能够降低系统开发成本。


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    Title :

    Refrigerant backflow control method and device of heat pump system and vehicle


    Additional title:

    热泵系统的制冷剂回流控制方法、装置和车辆


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

    Publication date :

    2024-03-08


    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 / F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS



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