Compressor

A compressor, characterized by comprising a housing (100), a fixed scroll (200), an orbiting scroll and a check valve (300), the fixed scroll (200) and the orbiting scroll are respectively disposed in the housing (100), cooperatively connected to each other and encircle a compression chamber (102) therebetween, the housing (100) comprises a first cavity (101) which is located on a side of the fixed scroll (200) facing away from the orbiting scroll, and the fixed scroll (200) is provided with an exhaust hole (201) for the compression chamber (102);

• the check valve (300) comprises a valve seat (310), a valve plate (320) and a limiting plate (330), wherein the valve seat (310) is arranged on a side of the fixed scroll (200) facing away from the orbiting scroll, and comprises a base (311) and at least two bosses (312) protruding from an end face of an end of the base (311) facing away from the fixed scroll (200), wherein the base (311) is provided with a first through-hole (313) which is opposite to the exhaust hole (201), the at least two bosses (312) are arranged at intervals around the first through-hole (313), and gas flow passages (314) are formed between adjacent bosses (312) and in communication with the first cavity (101), wherein the limiting plate (330) is located on a side of the bosses (312) facing away from the base (311) and is fixedly connected to an end of each of the bosses (312) which is away from the base (311), and the exhaust hole (201) has a smaller cross-sectional area than the first through-hole (313);
• the at least two bosses (312) encircle a sliding channel (316) therebetween, the valve plate (320) is slidably connected to the sliding channel (316) and along which the valve plate (320) is slidable between the limiting plate (330) and the base (311), wherein the first through-hole (313) is opened and the first cavity (101) is communicated with the compression chamber (102) when the valve plate (320) slides to abut against the limiting plate (330);
• the valve plate (320) closes the first through-hole (313) and the first cavity (101) is not communicated with the compression chamber (102) when the valve plate (320) slides to abut against the base (311).