Oil return assembly, scroll compressor and air conditioning system

The invention provides an oil return assembly, a scroll compressor and an air conditioning system. The oil return assembly comprises an oil return pipe, a fixing part and a fixing seat, wherein the oil return pipe is arranged on the fixing seat through the fixing part; the fixing seat is provided with an avoiding groove or an avoiding hole; and the fixing part is arranged in the avoiding groove or the avoiding hole in an interference fit mode. Due to the fact that the fixing part is in interference fit in the avoiding groove or the avoiding hole, fastening structural parts such as bolts or rivets do not need to be additionally arranged, the number of similar rigid fastening structural parts and the installation process are reduced, and vibration caused by structure looseness and vibration noise caused by the vibration are reduced. 本申请提供一种回油组件、涡旋压缩机和空调系统。该回油组件包括回油管、固定件和固定座，所述回油管经所述固定件设在所述固定座上；所述固定座上设有避让槽或避让孔，所述固定件过盈配合地设在所述避让槽或所述避让孔中。由于固定件是过盈配合在避让槽或避让孔中，无需额外设置如螺栓或铆钉等紧固结构件，减少了类似的刚性紧固结构件及安装过程，以及减少了因结构松动而出现振动以及带来的