본 발명은 차량용 공조장치의 팽창밸브에 관한 것으로서, 교축유로의 하류측에 설치되는 정류판 구조를 개선함으로써, 교축유로에서 발생되는 "냉매누설음"을 방지함과 동시에 정류판에서 발생되는 "냉매접촉소음"도 방지할 수 있고, 이를 통해 차실내의 승차감과 쾌적성을 개선시킬 수 있도록 하는 것을 목적으로 한다. 이러한 목적을 달성하기 위하여 본 발명은, 응축기에서 도입된 고압냉매를 저압으로 팽창시켜, 증발기로 유입시키는 교축유로를 구비하는 차량용 공조장치용 팽창밸브에 있어서, 교축유로의 하류측에 설치되는 공간확장형 정류판부재를 더 포함하며, 공간확장형 정류판부재는, 교축유로의 하류측 냉매를 일정량 통과시킬 수 있는 정류홀을 가지며, 교축유로의 하류측 냉매 흐름량을 일정하게 조절하는 정류판몸체부와; 교축유로와 정류판몸체부의 사이에 냉매유동공간이 확보될 수 있도록, 정류판몸체부를 상기 교축유로로부터 이격되게 지지하는 스페이서부를 구비한다.
The present invention relates to an expansion valve of an air-conditioning system for an automotive vehicle which prevents a refrigerant leakage sound as well as a refrigerant contact noise from a baffle plate by improving the structure of the baffle plate installed on the lower portion of a throttling flow pathway, and thus riding comfort for passengers is enhanced. Accordingly, the present invention relates to the expansion valve of an air-conditioning system for an automotive vehicle, equipped with the throttling flow pathway expanding high-pressure refrigerant introduced from the condenser under lower pressure and inputting the refrigerant to an evaporator, comprising: a space expansion-type baffle plate installed on a downstream side of the throttling flow pathway. The space expansion-type baffle plate comprises: a baffle hole capable of allowing a predetermined amount of refrigerant on the downstream side of the throttling flow pathway to pass through; a baffling plate body unit controlling uniformly the flow rate of refrigerant on the downstream side of the throttling flow pathway; and a spacer unit supporting the baffle plate body unit to be spaced from the throttling flow pathway to allow for a refrigerant flow space between the throttling flow pathway and the baffle plate.
EXPANSION VALVE OF AIR CONDITIONING SYSTEM FOR AUTOMOTIVE VEHICLES
차량용 공조장치의 팽창밸브
2020-05-19
Patent
Elektronische Ressource
Koreanisch
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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