a compressor

Abstract

The invention provides a compressor, comprising a shell, a liquid storage device, a motor, a cylinder, a crankshaft, an upper bearing and a lower bearing, wherein the motor and the cylinder are arranged in the shell; the motor comprises an internal rotor and an external stator; the cylinder comprises a compression chamber; the crankshaft is connected with the motor and the cylinder, and transmitsthe rotational force of the motor to a piston in the cylinder for compressing a refrigerant; the upper bearing and the lower bearing are sleeved with the lower part of the crankshaft, define a compression space together with the cylinder, and supports the crankshaft; the upper bearing is internally provided with a first channel used for communicating the liquid storage device, arranged outside theshell, and the compression chamber; the first channel is integrated with the upper bearing; the extension direction of at least part of the first channel is inclined to the surface of the upper bearing. According to the compressor, the channel is formed in the upper bearing of the existing compressor, and the channel is used for communicating the liquid storage device and the compression chamberof the cylinder of the compressor, so that the length of a connecting pipe between the liquid storage device of the compressor and a compressor body is reduced, the distance between the liquid storagedevice of the compressor and the compressor body is further shortened, the resonance of the liquid storage device is reduced, and the flow resistance of a refrigerant is reduced.

Description

Technical field [0001] The invention relates to the technical field of compressors, in particular to a rolling rotor compressor. Background technique [0002] Generally speaking, a hermetic compressor includes a motor for generating driving force in an inner space of a sealed casing, and a compression component connected to the motor for compressing refrigerant. Hermetic compressors can be classified into reciprocating compressors, scroll compressors, and rolling rotor compressors according to different refrigerant compression mechanisms. Reciprocating compressors, scroll compressors, and rolling rotor compressors all utilize the rotational force of a motor. Such as figure 1 As shown, the main structure of the existing rolling rotor compressor is as follows: [0003] Compressor housing 1'; accumulator 2'; and connecting pipe 9'. The existing connecting pipe 9'generally uses a copper pipe. One end of the connecting pipe 9'is connected to the accumulator 2', and the other end is co...

AI Technical Summary

Problems solved by technology

Connected in this way, generally because the radius of the connecting pipe 9' is slightly larger than the radius of the hole reserved on the compressor housing 1', it is easy to cause the cylinder 4' to deform when it is pressed in, thus destroying the original Assembly accuracy

[0006] In the current rotary compressor, the pump body structure of the compressor is welded to the compressor shell 1' after assembly, this installation method will lead to poor dimensional accuracy, especially the inner rotor of the motor 3' The air gap between 31' and outer stator 32' is not good, which leads to problems such as increased noise and worsened shaft stress

In addition, at present, the liquid receiver 2' of the compressor and the copper pipe 9' connecting the compressor are usually in the form of an L-shaped elbow. Due to the long length and soft material of this elbow, it is easy to cause the structure of the liquid receiver 2' Resonance leads to larger noise of the accumulator 2', and this bending also leads to an increase in the flow resistance of the refrigerant flow

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