The present invention relates to an internal heat exchanger for vehicle air-conditioning. According to the present invention, an internal heat exchanger for vehicle air-conditioning comprises: an external pipe having a channel unit to provide a high pressure flow path between a condenser and an expansion side; and an internal pipe inserted into the inside of the external pipe, wherein a low pressure flow path is provided between an evaporator and a compressor. Therefore, according to the present invention, high temperature and high pressure refrigerant discharged to an exit of the condenser and lower temperature and low pressure refrigerant discharged to an exit of the evaporator are heat-exchanged with each other to supercool high temperature and high pressure liquefied refrigerant throttled by an expansion valve. Therefore, enthalpy of the evaporator is improved to increase cooling performance.
본 발명은 차량 공조용 내부 열교환기에 관한 것이다. 이를 위하여, 본 발명은 응축기와 팽창변 사이에 고압유로가 제공되는 채널부를 갖는 외부관; 및 증발기와 압축기 사이에 저압유로가 구비되며, 상기 외부관의 내부로 삽입된 내부관으로 구성됨을 특징으로 하는 차량 공조용 내부 열교환기. 따라서, 본 발명은 응축기의 출구측으로 토출되는 고온·고압의 냉매와 증발기의 출구측으로 토출되는 저온·저압의 냉매가 서로 열교환 이루어지도록 하여 팽창밸브에 의해 교축되는 고온·고압의 액상 냉매가 과냉화할 수 있도록 하여 증발기의 엔탈피를 향상시켜 냉방성능을 높일 수 있도록 한 것이다.
INTERNAL HEAT EXCHANGER FOR VEHICLE AIR-CONDITIONING
차량 공조용 내부 열교환기
2018-10-01
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 / F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / F28D Wärmetauscher, soweit in keiner anderen Unterklasse vorgesehen, in denen die Wärmetauschmittel nicht in direkte Berührung miteinander kommen , HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT / F28F Einzelheiten von Wärmetauschern oder Wärmeübertragungsvorrichtungen für allgemeine Verwendung , DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION |
Internal heat exchanger for a motor vehicle air-conditioning system
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