Compression mechanism and refrigeration device with it

Abstract

The invention discloses a compression mechanism and a refrigeration device. The compression mechanism includes a cylinder with a cylinder chamber and a slide groove in the cylinder; an exhaust hole communicating with the cylinder chamber; a piston; a crankshaft for driving the piston to rotate eccentrically in the cylinder chamber; an upper bearing and a lower bearing rotatably supporting the crankshaft; Sliding piece, the sliding piece is set in the sliding piece groove and can reciprocate between the inner limit position and the outer limit position, the inner end of the sliding piece is in contact with the piston; the exhaust valve piece, the exhaust valve piece is used to open and close Exhaust hole; translational part, when the sliding piece moves outward, the translational part is driven to translate to push the exhaust valve plate to close the exhaust hole, the translational part includes the main translational part and the auxiliary translational part, when the sliding piece moves outward Drive the main translator to translate, the main translator drives the auxiliary translator to translate to push the exhaust valve plate to close the exhaust hole, and the translation direction of the main translator is orthogonal to the translation direction of the auxiliary translator. According to the compression mechanism of the present invention, the applicability and reliability of the exhaust valve plate are good, the closing noise is low, and the energy efficiency is high.

Description

technical field [0001] The present invention relates to the technical field of compressors, in particular to a compression mechanism and a refrigeration device with it. Background technique [0002] The discharge valve plate is an important part of the rotary compressor, and the discharge valve plate affects the energy efficiency, power consumption, noise, etc. of the compressor. Various improvements to the structure and material of the exhaust valve plate itself have been proposed in the related art, but each of these improvement solutions has its own problems, so there is a demand for improvement. The present invention is based on the inventor's discovery and understanding of the following facts and problems: In the related art, the exhaust valve plate of a rotary compressor is usually a reed valve plate with a certain degree of elasticity, that is, a certain rigidity. One end of the air valve plate is fixed, and the other end is free to open and close the air vent. [0...

AI Technical Summary

Problems solved by technology

In order to improve the energy efficiency of the compressor, if the discharge valve plate is designed to have a lower stiffness, it will lead to the problem of reduced timeliness and reliability of compressor shutdown at high speeds and high noise

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