The present invention relates to a heat pump system for a vehicle. More specifically, the heat pump system for a vehicle is formed to preheat a battery and enable indoor heating by using one heater for indoor heating. Therefore, the heat pump system for a vehicle can reduce production costs by reducing the number of installed components and improve fuel efficiency of the vehicle by reducing power consumption of the battery. To achieve the purpose of the present invention, the heat pump system for a vehicle cooling and heating the inside of the vehicle by controlling a flow direction of a refrigerant discharged from a compressor includes: an electric heater for a coolant heating a coolant circulating in an indoor heating coolant circulation line for indoor heating of the vehicle; a battery chiller cooling the battery by exchanging the heat of the coolant circulating in a battery coolant circulation line and the refrigerant circulating in a refrigerant circulation line including the compressor, an outer heat exchanger, and an inner heat exchanger; an expansion valve installed on a refrigerant line positioned on the upper side of the battery chiller; a four-way valve for a coolant line installed between the indoor heating coolant circulation line and the battery coolant circulation line and selectively connecting the indoor heating coolant circulation line and the battery coolant circulation line according to an air conditioning mode; and a control unit controlling the electric heater for a coolant and the four-way valve for a coolant line.

    본 발명은 자동차용 히트펌프 시스템에 관한 것으로서, 보다 상세하게는 하나의 실내 난방용 히터를 사용하여 실내 난방 및 배터리 예열이 가능하도록 구성함으로써 설치 부품수를 줄여 제조원가를 절감시킬 수 있고 배터리의 전력소비를 감소시켜 자동차의 연비를 향상시킬 수 있는 자동차용 히트펌프 시스템을 제공한다. 이를 위한 본 발명은 압축기로부터 토출되는 냉매의 흐름 방향을 제어하여 자동차 실내의 냉,난방을 수행하는 자동차용 히트펌프 시스템에 있어서, 자동차의 실내 난방을 위한 실내 난방 냉각수 순환라인 내부를 순환하는 냉각수를 가열해 주는 냉각수 전기히터와; 압축기와 외부열교환기와 내부열교환기가 구비된 냉매순환라인 내부를 순환하는 냉매와 배터리 냉각수 순환라인 내부를 순환하는 냉각수를 열교환시켜 배터리를 냉각하는 배터리 칠러와; 배터리 칠러의 상류측에 위치한 냉매라인 상에 설치되는 팽창밸브와; 실내 난방 냉각수 순환라인과 배터리 냉각수 순환라인 사이에 설치되며, 공조모드에 따라 실내 난방 냉각수 순환라인과 배터리 냉각수 순환라인 사이를 선택적으로 연결하는 냉각수라인 4방밸브와; 냉각수 전기히터와 냉각수라인 4방밸브를 제어하는 제어부;를 포함하여 구성된 것을 특징으로 한다.


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    Title :

    Automotive heat pump system


    Additional title:

    자동차용 히트펌프 시스템


    Contributors:

    Publication date :

    2023-07-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    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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