The invention provides a back pressure cavity sealing structure, a compressor and a vehicle-mounted air conditioning system. The back pressure cavity sealing structure comprises a movable vortex plate, a vortex plate front cover and a wear-resistant part. The movable vortex plate is rotationally connected with the vortex plate front cover, and the movable vortex plate and the vortex plate front cover jointly define a back pressure cavity. The wear-resistant part is connected with the movable vortex plate through an elastic part, and the elastic part is used for enabling the wear-resistant part to have a movement trend close to the vortex plate front cover and enabling the movable vortex plate to have a movement trend far away from the vortex plate front cover. The wear-resistant part is in sealed connection with the movable vortex plate, and the wear-resistant part is in sealed connection with the vortex plate front cover through an oil film layer, so that fluid in the back pressure cavity is prevented from leaking between the wear-resistant part and the vortex plate front cover. The back pressure cavity is good in sealing performance, not prone to leakage, stable in pressure and high in compressor performance.
本申请提供一种背压腔密封结构、压缩机和车载空调系统,背压腔密封结构包括动涡盘;涡盘前盖,动涡盘与涡盘前盖可转动地连接,且二者共同限定出背压腔;以及耐磨件,耐磨件通过弹性件与动涡盘连接,弹性件用于使耐磨件具有靠近涡盘前盖的运动趋势,以及使动涡盘具有远离涡盘前盖的运动趋势;耐磨件与动涡盘密封连接,耐磨件与涡盘前盖之间通过油膜层密封连接,以防止背压腔中的流体从耐磨件与涡盘前盖之间泄漏。背压腔密封性好,不易泄漏,压力稳定,压缩机性能高。
Back pressure cavity sealing structure, compressor and vehicle-mounted air conditioning system
背压腔密封结构、压缩机和车载空调系统
09.07.2021
Patent
Elektronische Ressource
Chinesisch
IPC: | F04C ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS , Rotationskolben- oder Schwenkkolbenmaschinen [Kraft- und Arbeitsmaschinen] für Flüssigkeiten / 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 |
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