Compression mechanism

The present disclosure provides a compression mechanism, comprising: a movable scroll including a movable scroll end plate and a movable scroll wrap formed on one side of the movable scroll end plate; the fixed vortex comprises a fixed vortex end plate and a fixed vortex roll formed on one side of the fixed vortex end plate, and an exhaust port is formed in the fixed vortex end plate; and the valve assembly comprises a valve plate, the valve plate comprises an arc-shaped first body part and a single moving part extending from the first body part, and the moving part comprises a movable end capable of selectively opening or closing the exhaust port. According to the present disclosure, it is possible to provide a compressor having a variable volume ratio function, which is not limited by an installation space and has a simple structure. 本公开提供了一种压缩机构，其包括：动涡旋，所述动涡旋包括动涡旋端板和形成在所述动涡旋端板的一侧的动涡卷；定涡旋，所述定涡旋包括定涡旋端板和形成在所述定涡旋端板的一侧的定涡卷，所述定涡旋端板中形成有排气口；以及阀组件，该阀组件包括阀片,所述阀片包括圆弧形的第一本体部以及从所述第一本体部延伸的单个运动部，所述运动部包括能够选择性地打开或关闭所述排气口的可