Partition plate assembly, compressor and refrigerating and heating equipment

The utility model provides a partition plate assembly, a compressor and refrigerating and heating equipment. The partition plate assembly comprises a partition plate body, the partition plate body is provided with a peripheral side face and two opposite side surfaces, a cavity is formed in the peripheral side face, a first exhaust hole communicated with the cavity is formed in at least one side surface, and a first exhaust valve for opening and closing the first exhaust hole is installed in the cavity. According to the partition plate assembly, the cavity is formed in the peripheral side face of the partition plate body, the first exhaust hole penetrating through the cavity is formed in the side surface of the partition plate body, and the first exhaust valve is installed in the cavity so as to open and close the first exhaust hole; therefore, the partition plate body does not need to be divided, good rigidity and plane precision of the partition plate body can be guaranteed, assembly errors are reduced, and