Compression components of compressors, compressors and air conditioners

Abstract

A disclosed compression assembly of a compressor comprises a cylinder, rollers in the cylinder, a crankshaft (42) matched with the rollers, and a lower flange (30) below the cylinder; the invention comprises at least three cylinders; the crankshaft (42) possesses multiple eccentric parts matched with at least three rollers one by one; and the multiple cylinders are in successive communicated for forming a multi-stage compression mechanism. The cylinder number in the provided compression assembly is increased, when the compression assembly is at a low-temperature work condition, the air suction amount is guaranteed, also the suction-exhausting air pressure ratio of the compressor is subjected to at least three times of decomposition, and thus the working performance and the reliability of the compressor at the low-temperature work condition are improved. The invention also discloses the compressor possessing the above compression assembly and an air conditioner possessing the compressor.

Description

technical field [0001] The invention relates to the technical field of heat exchange devices, in particular to a compression assembly of a compressor. The present invention also relates to a compressor with the above-mentioned compression assembly and an air conditioner with the compressor. Background technique [0002] The compressor increases the pressure of the heat exchange medium through its compression components, so as to meet the working requirements of the heat exchange system. Compression components mainly include crankshaft, rollers and cylinders. The cylinder communicates with the liquid distributor of the compressor. The heat exchange medium flowing out of the liquid distributor enters the cylinder, and the crankshaft drives the rollers to roll in the cylinder to compress the heat exchange medium. . [0003] In the currently commonly used compression assemblies, the number of cylinders is usually one or two. Under normal working conditions, the above structure...

AI Technical Summary

Problems solved by technology

However, when the compressor is used in low-temperature conditions, the following situations will occur: due to the decrease in the specific volume of the refrigerant, the unit suction capacity of the compressor will decrease accordingly, resulting in a decrease in the heat exchange capacity of the compressor; After the unit suction capacity of the compressor is reduced, the lubrication and cooling effects of the compression components inside the compressor and the drive motor will become worse; the suction-to-exhaust pressure ratio of the compressor is relatively large, resulting in a high discharge temperature of the compressor. limit, larger leakage and frictional losses will occur in the compressor

The above factors will lead to poor performance and reliability of the compressor under low temperature conditions, which cannot meet the needs of users

[0004] In summary, how to solve the problem of poor performance and reliability of the compressor under low temperature conditions has become a technical problem to be solved urgently by those skilled in the art

Images