Pump body and compressor

Abstract

The invention provides a pump body and a compressor. The pump body includes a cylinder assembly, a first cavity, a second cavity, an exhaust channel and a shunt pipe. At least a part of the gas discharged from the cylinder assembly enters the first cavity; exhaust The channel connects the first cavity with the second cavity, the exhaust channel has a diversion port and a collector port, and the part of the exhaust channel between the diverter port and the collector port is a sub-channel; The mouth and the manifold are connected, and the diversion pipe and the sub-channel divide the gas entering the exhaust channel from the first cavity at the diversion opening, and collect the divided gas into the exhaust channel at the manifold; wherein, the diversion The lengths of the tube and the sub-channels are different, so that the sound waves in the gas in the shunt tube and the sub-channels have a phase difference, thereby attenuating the sound waves in the gas collected at the manifold. Therefore, the solution can reduce the noise of the pump body and the compressor, and can reduce the air column resonance noise in the exhaust passage and the vibration of the pump body.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a pump body and a compressor. Background technique [0002] With the improvement of people's living comfort requirements, the requirements for the noise of household appliances are getting higher and higher. In the air conditioning system or some other household appliances, the compressor is the main noise source, so the noise reduction of the compressor is very important. [0003] In existing compressors, structures such as resistant mufflers and exhaust resonance chambers are generally used to reduce the noise of the compressor. The exhaust resonance chamber can reduce noise for a specific frequency, but it will increase the clearance volume of the compressor , affecting the energy efficiency of the compressor. The resistant muffler can reflect and interfere with the gas in the cavity. Although it can effectively reduce noise, it will generate secondary noise. It will inc...

AI Technical Summary

Problems solved by technology

[0003] In existing compressors, structures such as resistant mufflers and exhaust resonance chambers are generally used to reduce the noise of the compressor. The exhaust resonance chamber can reduce noise for a specific frequency, but it will increase the clearance volume of the compressor , affecting the energy efficiency of the compressor

The resistant muffler can reflect and interfere with the gas in the cavity. Although it can effectively reduce noise, it will generate secondary noise. It will increase the exhaust resistance and reduce the energy efficiency of the compressor

Therefore the noise reduction effect of existing compressor is still unsatisfactory

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