Rotary compressor

Abstract

A rotary compressor comprises a compression mechanism portion and a motor portion which are arranged in a sealed container, wherein the sealed container is composed of a shell, an upper cover and a lower cover, the compression mechanism portion comprises a cylinder, a piston eccentrically rotating in the compression chamber of the cylinder, a crankshaft driving the piston to rotate, an upper bearing and a lower bearing which support the crankshaft and the sealed compression chamber, and a slide sheet having a back allowing the front end of the slide sheet to be connected to the outer circumference of the piston through a compression spring, the motor portion comprises a stator fixed on the shell and a rotor accommodated in the stator, the internal diameter of the chamber of the cylinder is D, the thickness of the slide sheet is T, the T / D value is not greater than 0.067, and the T / D value is not lower than 0.041. The rotary compressor realizes the compressor efficiency increase and compressor manufacturing cost reduction purposes through restricting the dimension of the thickness of the slide sheet, and has a simple structure and a wide application range.

Description

technical field [0001] The present invention relates to a rotary compressor. Background technique [0002] In order to meet energy-saving requirements, the energy efficiency level of air conditioners is further improved, and the efficiency requirements for compressors are also getting higher and higher. In order to improve the efficiency of the compressor, each working part of the compressor is optimized, and the size is set within the optimum point to achieve the optimum efficiency of the compressor. In the case of a certain discharge volume (V=πe(D-e)H), the bore diameter and height of the cylinder change in conjunction. The larger the bore D, the smaller the cylinder height H (that is, the slide height H). When D≤0.04, it is beneficial to improve the efficiency of the compressor. It limits the height H of the cylinder (that is, the height H of the slide vane), and it takes into account the relationship between the height H of the cylinder and the sliding loss on the sid...

AI Technical Summary

Problems solved by technology

It limits the height H of the cylinder (that is, the height H of the slide vane), and it takes into account the relationship between the height H of the cylinder and the sliding loss on the side of the slide vane (the contact surface with the slide vane groove of the cylinder) and the contact with the front end of the slide vane (with the piston) position) leakage, but did not take into account the relationship between the thickness T of the slide plate and the sliding loss of the upper and lower end surfaces of the slide plate (the contact surface with the bearing), such as image 3 shown

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