compressor

Abstract

The present invention discloses a compressor which comprises a shell, a high-low pressure separation plate, a crank shaft, a first cylinder, and a first bearing, wherein the shell defines an inner cavity; the high-low pressure separation plate separates the inner cavity in the shell to form a high pressure cavity and a lower pressure cavity; the crank shaft penetrates through the high-low pressure separation plate; two ends of the crank shaft extend to the high pressure cavity and the lower pressure cavity respectively; an inner hole is formed in the crank shaft in a manner of penetrating through the axial direction; the first cylinder is positioned in the high pressure cavity; the crank shaft penetrates through the first cylinder; the first bearing is fixed together with the first cylinder and is close to the end part of the crank shaft; a first air sucking channel is formed in the first bearing and is communicated with the inner hole of the crank shaft and an air inlet of the first cylinder; a coolant in the lower pressure cavity can flow to the air inlet of the first cylinder by the inner hole and the air sucking channel, so that air inlet requirements of the first cylinder in the compressor can be met; in addition, the deformation of the first bearing can be avoided, and the temperature of the crank shaft can be reduced.

Description

technical field [0001] The present invention relates to a compressor. Background technique [0002] In the related art, the rotary compressor with high and low pressure separation generally has an air suction channel from the main bearing, and the low-pressure gas is sucked into the air cylinder suction chamber through the main bearing air suction channel. The air channel is feasible, but for the double-cylinder compressor, if the suction hole is set in the main bearing, it can only be a single suction structure, and the double suction structure is more difficult to design and manufacture. The single-intake structure has the problems of insufficient high-frequency capability and low energy efficiency, so a double-intake structure is generally required for twin cylinders. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. For this reason, the present invention proposes a com...

AI Technical Summary

Problems solved by technology

[0002] In the related art, the rotary compressor with high and low pressure separation generally has an air suction channel from the main bearing, and the low-pressure gas is sucked into the air cylinder suction chamber through the main bearing air suction channel. The air channel is feasible, but for the double-cylinder compressor, if the suction hole is set in the main bearing, it can only be a single suction structure, and the double suction structure is more difficult to design and manufacture

The single-intake structure has the problems of insufficient high-frequency capability and low energy efficiency, so generally double-cylinders need a double-intake structure

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