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ENHANCED VAPOR INJECTION HEAT PUMP AIR CONDITIONING SYSTEM AND ELECTRIC VEHICLE COMPRISING HEAT PUMP AIR CONDITIONING SYSTEM
ENHANCED VAPOR INJECTION HEAT PUMP AIR CONDITIONING SYSTEM AND ELECTRIC VEHICLE COMPRISING HEAT PUMP AIR CONDITIONING SYSTEM
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机译：增强的蒸汽喷射热泵空调系统及包括热泵空调系统的车辆
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摘要
Provided are an enhanced vapor injection heat pump air-conditioning system and an electric vehicle comprising the heat pump air-conditioning system. The heat pump air-conditioning system comprises a compressor (1), a first condenser (3), a first heat exchanger (6), a first expansion valve (7) and a second condenser (9) which are connected end to end in sequence, wherein the first heat exchanger (6) comprises a first channel (61) and a second channel (62), a first end of the first channel (61) is in communication with the first condenser (3), and a second end of the first channel (61) is in communication with the first expansion valve (7); and a first end of the second channel (62) is in communication with the first condenser (3) through a second expansion valve (8), and a second end of the second channel (62) is in communication with the compressor (1). The temperature of a coolant entering the second channel (62) is lower than that of the coolant in the first channel (61) due to the decompression and vaporization effects of the second expansion valve (8). Therefore, when the coolant in the first channel (61) flows through the compressor (1) again, the temperature of the compressor (1) can be prevented from being too high, so that the heat pump air-conditioning system can heat even below -10°C to supply hot air to the interior of the electric vehicle.
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