The present invention relates to a heat pump system for a vehicle, which comprises: a refrigerant circulation line which includes a compressor, condenser, first expansion valve, outdoor heat exchanger, refrigerant branch unit which branches a refrigerant passing through the outdoor heat exchanger, a first refrigerant line branched from the refrigerant branch unit to one side to pass through a second expansion valve and an evaporator, a second refrigerant line branched from the refrigerant branch unit to the other side to pass through a third expansion valve and a chiller, and an accumulator through which the refrigerant, which has passed through the first refrigerant line and the second refrigerant line, passes; a heating line which circulates cooling water, which exchanges heat with the refrigerant through the condenser, and heats the indoors; and a cooling line which circulates the cooling water, which exchanges heat with the air or the refrigerant, and cools a battery and electronic parts. A refrigerant heat exchanger is placed between the refrigerant branch unit and the second expansion valve. The refrigerant moving from the refrigerant branch unit to the second expansion valve and the other refrigerant moving from the accumulator to the compressor exchange heat with each other. The present invention aims to provide a heat pump system for a vehicle, which is able to increase the efficiency of a heat pump.
본 발명은 압축기, 응축기, 제1 팽창밸브, 실외열교환기, 상기 실외열교환기를 통과한 냉매가 분기되는 냉매분기부, 상기 냉매분기부에서 일측으로 분기되어 제2 팽창밸브 및 증발기를 통과하는 제1 냉매라인과 상기 냉매분기부에서 타측으로 분기되어 제3 팽창밸브 및 칠러를 통과하는 제2 냉매라인, 상기 제1 냉매라인과 상기 제2 냉매라인을 통과한 냉매가 통과하는 어큐뮬레이터를 포함하는 냉매 순환라인, 상기 응축기를 통해 상기 냉매와 열교환되는 냉각수를 순환시켜 실내를 난방하는 난방라인 및 공기 또는 상기 냉매와 열교환되는 냉각수를 순환시켜 배터리 및 전장부품을 냉각시키는 냉각라인을 포함하며, 냉매열교환기는 상기 냉매분기부와 상기 제2 팽창밸브 사이에 배치되며, 상기 냉매분기부에서 상기 제2 팽창밸브 사이를 이동하는 냉매와 상기 어큐뮬레이터에서 상기 압축기 측으로 이동하는 냉매가 열교환을 하는 것을 특징으로 하는 차량용 히트펌프 시스템을 제공한다.
Heatpump system for vehicle
차량용 히트펌프 시스템
2021-05-27
Patent
Electronic Resource
Korean
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 |
HEATPUMP SYSTEM FOR VEHICLE USING THE WATER COLDED CONDENSER
European Patent Office | 2019
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