Exhaust muffler and refrigerating compressor

Abstract

The invention discloses an exhaust muffler and a refrigerating compressor. The refrigerating compressor comprises a housing, a core and the exhaust muffler, wherein the exhaust muffler comprises a muffler body in which a muffling cavity is formed; a refrigerant inlet and a refrigerant outlet which are communicated with the muffling cavity are formed in the muffler body; the muffler body comprises an inner wall and an outer wall; an insulation gap for wrapping the muffling cavity is formed between the inner wall and the outer wall; the exhaust muffler and a cylinder seat are individually arranged. According to the refrigerating compressor, the exhaust muffler is arranged to be a double-layer structure; the heat gap for wrapping the muffling cavity is formed between the inner wall and the outer wall, so that the air of which the heat is transmitted from the inner part of the exhaust muffler to the inner cavity of the compressor can be reduced; the exhaust muffler and the cylinder seat are individually arranged, thus the direct heat transfer due to integral casting of the exhaust muffler and the cylinder seat in the traditional technical scheme can be further reduced, and as a result, the heat exchanger from the exhaust system to the air intake system can be reduced; the performance of a refrigerator compressor can be improved, and the service life can be prolonged.

Description

Technical field [0001] The invention is used in the technical field of refrigeration compressors, and particularly relates to an exhaust muffler and a refrigeration compressor. Background technique [0002] Refrigeration compressors, especially refrigerator compressors, have a particularly high temperature in the exhaust system, while the suction temperature of the refrigerator compressor is very low. Therefore, there is a large temperature difference between the exhaust system and the suction system, and the heat can easily escape from the exhaust. The transmission of the system to the suction system is not conducive to the improvement of the performance of the refrigerator compressor. The exhaust system and cylinder bore of the traditional compressor are made on the same cylinder seat by casting process. The metal heat transfer efficiency is high, and a large amount of heat is transferred from the exhaust system to the suction system. A newer improvement measure is to separate...

AI Technical Summary

Problems solved by technology

But even so, the temperature of the "exhaust muffler" itself is very high, and it is easy to heat the gas in the entire compressor cavity to a higher temperature, and then the high-temperature gas is sucked into the suction muffler, which is not conducive to the improvement of compressor efficiency.

At the same time, due to the high gas temperature in the inner cavity of the compressor, the temperature of the motor winding is also increased, which is easy to cause the motor to burn out, which is not conducive to protecting the service life of the compressor.

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