Pump body silencer, pump body assembly and compressor

Abstract

The invention relates to the technical field of compressors, in particular to a pump body silencer, a pump body assembly and a compressor. The pump body silencer comprises an inner layer silencer cover connected with the pump body assembly and an outer layer silencer cover sleeving an inner layer silencer, wherein a gas-liquid separation cavity is formed between the inner layer silencer cover andthe outer layer silencer cover; a plurality of hollow inner layer resonators are arranged on one side, facing the outer layer silencer cover, of the top surface of the inner layer silencer cover; thetail ends of the inner layer resonators are in contact with the outer layer silencer cover, so that a resonance cavity expansion chamber is formed inside each inner layer resonator; and the resonancefrequencies of the resonance cavity expansion chambers inside the inner layer resonators are different. According to the pump body silencer, the pump body assembly and the compressor, the resonance frequencies of the resonance cavity expansion chambers are different, so that noises with different specific frequencies are eliminated, the silencing effect of the silencer is improved, the compressorand an electric appliance using the compressor are prevented from damaging the sound environment in life of people, the comfort of the compressor and the electric appliance using the compressor is improved, and the application range is expanded.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a pump body muffler, a pump body assembly and a compressor. Background technique [0002] The high-speed rotary compressor is one of its future development directions. The high-speed rotary compressor has multiple application directions and advantages such as rapid cooling, high heating capacity, and miniaturization. However, the high-speed rotary compressor also faces many challenges. For a rotary compressor operating at a high speed, especially when it is operated above 120Hz, due to the fast exhaust flow rate and large exhaust mass flow rate, the compressor’s oil discharge rate increases, gas pulsation and The incentive has increased significantly, and the high-speed oil discharge rate of the compressor and the noise problem are the difficulties in the research of high-speed rotary compressors. The high-speed operation of the rotary compressor increases the gas flow rate ...

AI Technical Summary

Problems solved by technology

The high-speed rotary compressor has a wide operating range, resulting in a wider range of gas pulsation and excitation. The original design of the muffler and exhaust resonance chamber is only optimized for a specific frequency range, which is difficult to cope with a wide range of gas pulsation. Targeted resonant cavity design scheme to meet broadband noise reduction requirements

Images