The invention provides a pump body
assembly and a compressor, the pump body
assembly comprises a first
flange and an air cylinder provided with an inner cavity, an exhaust structure is arranged between the first
flange and the air cylinder, a plurality of air outlet holes are formed in the first
flange, and the exhaust structure is configured to act under the action of the
pressure difference of internal and external air in the inner cavity. Therefore, connection and disconnection between the air outlet hole and the inner cavity are controlled. According to the technical scheme, only the air outlet is formed in the flange, and the exhaust unit is arranged in other structures, so that compared with existing structures such as an
exhaust valve seat arranged on the flange, the occupied area is greatly reduced, and the rigidity of the flange can be effectively guaranteed. And based on the advantages of small occupied area of the air outlet holes and low influence on the
structural rigidity of the flange, the multiple air outlet holes can be formed in the flange, so that the air displacement is increased, the air exhaust resistance is reduced, the air exhaust efficiency is improved, the
power consumption is reduced, and finally the energy efficiency of the compressor where the pump body
assembly is located can be effectively improved.