A piston and suction valve assembly for a linear compressor, and a compressor

Abstract

The invention relates to a piston and air suction valve assembly for a linear compressor. The assembly comprises an air suction valve sheet and a piston, wherein the piston is provided with an air inlet channel, an annular inclined face is arranged on one end face of the piston, and an annular chamfer is arranged on one end face of the air suction valve sheet, and the chamfer and the inclined facecan be mutually attached to realize sealing between the air suction valve sheet and the end face of the piston; a connecting piece is arranged in the piston, wherein the end face, close to the piston, of the air suction valve sheet is provided with a limiting rod, the axis of the limiting rod is parallel to the axis of the piston, the limiting rod extends into the connecting piece and can performreciprocating linear motion along the axis of the piston; and the connecting piece can limit the limiting rod to perform a reciprocating stroke along the axis of the piston so as to control the overall movement stroke of the air suction valve sheet. According to the piston and air suction valve assembly for the linear compressor and a compressor, the problems that in an existing piston and air suction valve assembly, air suction efficiency is low caused by plastic deformation of an air suction valve, vibration and noise of a compressor is increased due to a deformed air suction valve sheet violently beats a piston and the like can be solved.

Description

technical field [0001] The invention belongs to the technical field of linear compressors, and in particular relates to a piston and suction valve assembly and a compressor for a linear compressor. Background technique [0002] The linear compressor can use the linear motor to drive the piston to do reciprocating linear motion, suck in low-temperature and low-pressure refrigerant gas, and discharge high-temperature and high-pressure refrigerant gas. In general, the cylinder is provided with an exhaust valve assembly, the piston is provided with an air suction valve assembly, and there is an air suction channel inside the piston. Open or close when elastic deformation occurs. [0003] The inventor understands that: if the specification attached Figure 7 As shown, the existing suction valve is fixed on the piston by screws, and the piston reciprocates under the drive of the motor to compress the refrigerant gas in the working chamber, and the refrigerant gas is realized thro...

AI Technical Summary

Problems solved by technology

[0007] The first object of the present invention is to provide a piston and suction valve assembly for a linear compressor, which can solve the low suction efficiency of the suction valve caused by plastic deformation of the existing piston and suction valve group, and the suction valve plate Due to excessive deformation, the piston is violently discharged, and the vibration and noise of the compressor are increased.

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