Compressor silencer and manufacturing process thereof

Abstract

The invention discloses a compressor silencer and a manufacturing process thereof, and belongs to the technical field of compressor assembly.The manufacturing process of the compressor silencer comprises the steps that raw materials are dried; heating the baked raw materials in sections; during injection molding of the silencer assembly, high-pressure injection and low-pressure pressure maintaining are carried out; after injection molding, cooling, demolding, assembling and welding molding are carried out; quality inspection; the preparation method has the beneficial effects that the preparation process of the silencer is standardized, the preparation period and the preparation cost of a finished product can be reduced through simple steps, meanwhile, the quality of the finished product is improved, and the performance index of the silencer can be improved; meanwhile, by changing the structure of an existing silencer, the silencing frequency range can be enlarged, and the silencing and noise reduction effect is improved.

Description

technical field [0001] The invention relates to the technical field of compressor assembly, in particular to a compressor muffler and a manufacturing process thereof. Background technique [0002] The noise generated by the compressor is the main source of the refrigerator noise, and the noise is one of the important indicators to measure the quality of the refrigerator compressor. Refrigerator compressor noise can be divided into aerodynamic noise, mechanical noise and electromagnetic noise, among which aerodynamic noise accounts for the largest proportion. The aerodynamic noise is mainly generated at the intake and exhaust ends of the compressor, especially the suction noise is the most prominent. Due to the existence of the valve plate, the suction process is discontinuous, and there is also high pressure expansion. In the aerodynamic noise, the airflow pulsation has become an important factor. Noise sources are usually controlled by a suction muffler. It can be seen th...

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Problems solved by technology

Due to the increase of the total pressure difference, the total pressure loss is large, which has a great impact on the cooling capacity of the compressor, resulting in a relatively low energy efficiency of the compressor; what's more, because the anechoic chamber is too small, the structural defects lead to low-frequency anechoic ability Weaker, the low-frequency sound of a specific frequency band cannot be eliminated at all, and the "passing through" anechoic chamber reduces the anechoic frequency and range, which will cause users to suffer from noise due to the out-of-tolerance of certain frequency bands, especially the out-of-tolerance of low-frequency noise. Poor quality leads to complaints

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