The invention provides a heat pump air conditioning system of an electric automobile, and belongs to the technical field of heat pump air conditioners of electric automobiles. The four-way change valve comprises four channel ports a, b, c and d which are mutually switched and communicated, the port a is connected with the output end of the air supply compressor, and the port c is connected with the input end of the air supply compressor; the output end of the first expansion valve is connected with a port d of the four-way change valve; the output end of the second expansion valve is connected with a port b of the four-way change valve; a gas-phase refrigerant in the refrigerant output by the ejector is input into an air supply port of the air supply compressor; an output liquid-phase refrigerant is throttled by the second expansion valve and then is output; and the subcooler is used for exchanging heat of the refrigerant. The system can reduce throttling loss of refrigeration and heating of the electric automobile air conditioner and reduce the pressure ratio of the compressor.
本发明提供了一种电动汽车热泵空调系统,属于电动汽车热泵空调技术领域,包括:补气压缩机,用于驱动制冷剂;四向换通阀,其包括四个互相切换联通的通道口a、b、c、d,其中a口与补气压缩机输出端相连,c口与补气压缩机的输入端相连;第一膨胀阀,其输出端与四向换通阀的d口相连;第二膨胀阀,其输出端与四向换通阀的b口相连;喷射器,其输出的制冷剂中的气相制冷剂输入补气压缩机的补气口中;其输出液相制冷剂经过第二膨胀阀节流后输出;过冷器,用于将制冷剂换热。该系统能够减少电动汽车空调制冷制热的节流损失,降低压缩器压比。
Heat pump air conditioning system of electric automobile
一种电动汽车热泵空调系统
2023-06-30
Patent
Elektronische Ressource
Chinesisch
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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