A pump body muffler, pump body assembly and compressor

Abstract

The present invention relates to the technical field of compressors, in particular to a pump muffler, a pump body assembly and a compressor. The pump muffler includes an inner muffler cover connected with the pump body assembly, and is sheathed on the inner muffler cover. The outer layer anechoic cover, the gas-liquid separation chamber is formed between the inner layer anechoic cover and the outer layer anechoic cover, the top surface of the inner layer anechoic cover facing the side of the outer layer anechoic cover is provided with a plurality of hollow The inner resonator, the end of the inner resonator is in contact with the outer muffler so that the inside of the inner resonator forms a resonant cavity expansion chamber, and the resonance frequency of the resonant cavity expansion chamber inside the multiple inner resonators different. The resonant frequency of each expansion chamber of the resonant cavity in the present invention is different, so that the noise of different specific frequencies can be eliminated, the noise reduction effect of the muffler is improved, and the compressor and the electrical appliances using the compressor are prevented from causing damage to the acoustic environment in people's lives. , improve the comfort of the compressor and the electrical appliances using the compressor, and expand its application range.

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 various application directions and advantages such as rapid cooling, high heating capacity, and miniaturization. However, the high-speed rotor compressor also faces many challenges. For the rotor compressor running at high speed, especially when running above 120Hz, due to the high exhaust flow rate and large exhaust mass flow, the oil discharge rate of the compressor increases, gas pulsation and The excitation is greatly increased, and the high-speed oil discharge rate and noise of the compressor are the difficulties in the research of high-speed rotary compressors. The high-speed operation of the rotary compressor increases the gas flow rate, which will also increase the ...

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

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