The present invention relates to a refrigerating cycle apparatus for a vehicle. According to the present invention, the refrigerating cycle apparatus for the vehicle comprises: a compressor connected to a compressor intake flow path and a compressor discharge flow path to compress a refrigerant; a condenser connected to the compressor discharge flow path to condense the refrigerant and to be connected to a condenser exit flow path; a battery module heat exchanger with a cooling flow path to cool a plurality of battery modules; an overcooling heat exchanger connected to the condenser exit flow path, having a first flow path through which the refrigerant flowing in the condenser passes and a second flow path wherein the refrigerant, which has passed through the cooling flow path, cools the refrigerant of the first flow path, being connected to the compressor intake flow path; a first expansion unit which expands the refrigerant in between the first flow path and the cooling flow path; a second expansion unit connected to the condenser exit flow path and expanding the refrigerant having flowed in the condenser; and an evaporator connected to the compressor intake flow path to evaporate the refrigerant expanded by the second expansion unit. The present invention is able to evenly cool a plurality of battery modules and to minimize temperature differences between the plurality of battery modules, thereby minimizing a decrease in performance of the battery module by temperature differences between the plurality of battery modules.

    본 실시예는 압축기 흡입유로 및 압축기 토출유로가 연결되고 냉매를 압축하는 압축기와; 압축기 토출유로에 연결되어 냉매를 응축하고, 응축기 출구유로가 연결된 응축기와; 복수개 배터리 모듈을 냉각하는 냉각유로가 형성된 배터리모듈 열교환기와; 응축기 출구유로에 연결되고, 응축기에서 유동된 냉매가 통과하는 제1유로와, 냉각유로를 통과한 냉매가 제1유로의 냉매를 냉각시키는 제2유로가 형성되며, 압축기 흡입유로에 연결된 과냉각 열교환기와; 제1유로와 냉각유로 사이에서 냉매를 팽창시키는 제1팽창기구와; 응축기 출구유로에 연결되고, 응축기에서 유동된 냉매를 팽창시키는 제2팽창기구와, 제2팽창기구에 의해 팽창된 냉매가 증발되고 압축기 흡입유로에 연결된 증발기를 포함하여, 복수개 배터리모듈이 고르게 냉각되어 복수개 배터리모듈의 온도편차가 최소화될 수 있고, 복수개 배터리모듈의 온도편차에 의한 배터리모듈의 성능저하를 최소화할 수 있는 이점이 있다.


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    Title :

    Refrigerant cycling device for vehicle


    Additional title:

    차량용 냉동사이클 장치


    Contributors:

    Publication date :

    2017-11-21


    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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