본 발명은 외부에서 인가되는 전원에 의해 구동하여 유입된 냉매를 압축하여 유출하는 전동압축기와, 유입된 냉매가 자동차 실내로 제공되는 급기와의 열교환으로 방열하여 급기를 히팅하는 실내컨덴서와, 유입된 냉매가 자동차 실내로 제공되는 급기와의 열교환으로 흡열하여 급기를 냉각하는 증발기와, 외부에서 인가되는 전원에 의해 구동하여 상기 실내컨덴서를 통과한 급기에 방열하여 열을 더하는 고전압PTC와, 상기 전동압축기의 유출단과 일측이 연결되고, 타측은 상기 실내컨덴서의 유입단과 연결되는 제1 냉매순환라인과, 상기 실내컨덴서의 유출단과 일측이 연결되고, 타측은 상기 증발기의 유입단과 연결되는 제2 냉매순환라인과, 상기 증발기의 유출단과 일측이 연결되고, 타측은 상기 전동압축기의 유입단과 연결되는 제3 냉매순환라인, 및 상기 제2 냉매순환라인 상에 구비되어, 상기 제2 냉매순환라인을 선택적으로 개폐하고, 상기 제2 냉매순환라인을 따라 유동하는 냉매를 교축시켜 감압하는 오리피스 2웨이밸브를 포함하여, 제2팽창밸브 후방과 오리피스 2웨이 밸브 유로를 합지하여 냉매 배관 및 컨트롤 제어를 단순화할 수 있고, 냉매 배관 길이 감소에 따라 열손실, 압력손실이 저감되어 소비전력이 감소되어, 전기자동차의 주행거리 향상됨은 물론, 냉난방시스템의 제조 원가도 절감되는 전기자동차용 냉난방 시스템을 제공한다.

    The present invention provides a cooling and heating system for an electric vehicle, comprising: a motor-driven compressor driven by power applied from the outside to compress and discharge an inflow refrigerant; an indoor condenser allowing an inflow refrigerant to radiate heat by heat exchange with supply air supplied to indoor space of an automobile to heat the supply air; an evaporator allowing an inflow refrigerant to absorb heat by heat exchange with the supply air supplied to the indoor space of the automobile to cool the supply air; a high-voltage PTC driven by power applied from the outside to radiate heat to the supply air passing through the indoor condenser to add heat; a first refrigerant circulation line wherein one side thereof is connected to an outlet end of the motor-driven compressor, and the other side thereof is connected to an inlet end of the indoor condenser; a second refrigerant circulation line wherein one side thereof is connected to an outlet end of the indoor condenser, and the other side thereof is connected to an inlet end of the evaporator; a third refrigerant circulation line wherein one side thereof is connected to an outlet end of the evaporator, and the other side thereof is connected to an inlet end of the motor-driven compressor; and an orifice two-way valve arranged on the second refrigerant circulation line to selectively open and close the second refrigerant circulation line and throttle and decompress a refrigerant flowing along the second refrigerant circulation line. The back of a second expansion valve and the flow path of the orifice two-way valve can be combined to simplify refrigerant pipes and control and reduce heat loss and pressure loss by refrigerant pipe length reduced to reduce power consumption to improve the driving distance of an electric vehicle and reduce the manufacturing costs of a cooling and heating system.


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    Titel :

    Air-conditioning system for electric vehicles


    Weitere Titelangaben:

    전기자동차용 냉난방 시스템


    Erscheinungsdatum :

    2024-01-10


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    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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