Pump body assembly, compressor and refrigeration equipment

The invention discloses a pump body assembly and a compressor, and relates to the technical field of compressors, the pump body assembly comprises an air cylinder, a slip sheet and a part, the air cylinder is provided with a compression cavity, the side wall of the compression cavity is provided with a slip sheet groove, the slip sheet is slidably arranged in the slip sheet groove so as to enter or exit from the compression cavity, and the part is arranged on the air cylinder. The part is one of an upper flange, a lower flange or a partition plate, at least one groove is formed in the face, facing the sliding piece, of the part, the projection in the axial direction of the air cylinder, the sliding piece groove and at least part of the groove coincide, the contact area between the end face of the sliding piece and the part can be reduced by arranging the groove, and therefore the friction force borne by the sliding piece is reduced; the energy efficiency of the compressor can be improved. 本发明公开了一种泵体组件及压缩机，涉及压