Compressors, air conditioners and water heaters

Abstract

The invention discloses a compressor, an air conditioner and a water heater. The compressor comprises a shell and a compression device, wherein refrigerant oil is arranged at the bottom of the shell; the compression device is arranged in the shell; the compression device comprises a crankshaft, a main bearing, a secondary bearing and a cylinder; the main bearing and the secondary bearing are arranged at the top and the bottom of the cylinder respectively and used together with the cylinder for defining a compression cavity; the lower end of the crankshaft penetrates through the main bearing and stretches into the compression cavity; a ratio of the eccentricity e of an eccentric part of the crankshaft relative to the central axis of the cylinder to the inner diameter Phi of the cylinder satisfies the following expression: e / Phi is more than or equal to 0.05 and less than or equal to 0.12. According to the compressor, the ratio of the eccentricity e to the inner diameter Phi of the cylinder is set as the following expression: e / Phi is more than or equal to 0.05 and less than or equal to 0.12. The degree of wear-out failure of a sliding sheet and the crankshaft in the compression device when the compressor runs at a high pressure and a high temperature can be reduced; the compressor is hardly worn, so that the service life of the compressor can be effectively prolonged, thus the reliability of the compressor can be improved.

Description

technical field [0001] The invention relates to the field of refrigeration equipment, in particular to a compressor, an air conditioner and a water heater. Background technique [0002] In the related technology, there is refrigerating machine oil in the sealed shell of the rotary compressor, and the compression device is immersed in the refrigerating machine oil. However, due to the use of R410A refrigerant and the new R32 environmentally friendly refrigerant, under high temperature and high pressure operating conditions, ordinary compressors cannot meet the reliability requirements. Sexuality, the compression device is severely worn, resulting in compressor necrosis. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a compressor, which is not easy to wear and die, thereby prolonging the service life of the compressor and impr...

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Problems solved by technology

[0002] In the related technology, there is refrigerating machine oil in the sealed shell of the rotary compressor, and the compression device is immersed in the refrigerating machine oil. However, due to the use of R410A refrigerant and the new R32 environmentally friendly refrigerant, under high temperature and high pressure operating conditions, ordinary compressors cannot meet the reliability requirements. Sex, the compression device is severely worn, resulting in compressor necrosis

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