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; a condenser connected to the compressor discharge flow path and a condenser exit flow path; a first expansion unit connected to the condenser exit flow path; a battery module heat exchanger connected to the first expansion unit with a battery module heat exchanger entrance flow path to have a cooling flow path, which cools a plurality of battery modules, being connected to a battery module heat exchanger exit flow path; an evaporator connected to the compressor intake flow path; an overcooling heat exchanger which includes: a first flow path connected to the battery module heat exchanger exit flow path; a connection flow path which guides a refrigerant having passed through the first flow path; and a second flow path through which the refrigerant flowing in the connection flow path passes, exchanging heat with the refrigerant passing through the first flow path, in order to be connected to the evaporator and the evaporator connection flow path; and a second expansion unit installed on the connection flow path. The present invention is able to cool the battery module heat exchanger to a higher temperature than that of the evaporator, thereby minimizing frost on the battery modules.
본 실시예는 압축기 흡입유로 및 압축기 토출유로가 연결된 압축기와; 압축기 토출유로와 연결되고 응축기 출구유로가 연결된 응축기와; 응축기 출구유로로 연결된 제1팽창기구와; 제1팽창기구와 배터리모듈 열교환기 입구유로로 연결되고 복수개 배터리 모듈을 냉각하는 냉각유로가 형성되며 배터리모듈 열교환기 출구유로가 연결된 배터리모듈 열교환기와; 압축기 흡입유로와 연결된 증발기와; 배터리모듈 열교환기 출구유로와 연결된 제1유로와, 제1유로를 통과한 냉매가 안내되는 연결유로와, 연결유로에서 유동된 냉매가 통과하면서 제1유로를 통과하는 냉매와 열교환되고 증발기와 증발기 연결유로로 연결된 제2유로를 갖는 과냉각 열교환기와; 연결유로에 설치된 제2팽창기구를 포함하여, 배터리모듈 열교환기를 증발기 보다 높은 온도로 냉각시킬 수 있어 배터리모듈에 서리가 착상되는 것을 최소화할 수 있다.
Refrigerant cycling device for vehicle
차량용 냉동사이클 장치
2017-11-21
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS |