Linear compressor with combined spring supporting structure

Abstract

The invention relates to the field of refrigeration compressors and provides a linear compressor with a combined spring supporting structure. The linear compressor comprises a front end cover, a middle end cover, a rear end cover, a cylinder barrel, an inner stator, an outer stator, a piston, a permanent magnet part, a movable connection part, a first columnar resonance spring part, a second columnar resonance spring part, a first platy resonance spring part and a second platy resonance spring part, wherein the front end cover, the middle end cover and the rear end cover are sequentially and fixedly arranged inside the shell of the linear compressor in parallel at certain interval, and the first platy resonance spring part and the second platy resonance spring part are respectively arranged between the movable connection part and the rear end cover and between the cylinder barrel and the movable connection part and are fixedly connected with the rear end cover and the cylinder barrel. By the combinational use of the columnar resonance springs and the platy resonance springs, the linear compressor provided in the invention reduces the lateral offset and torsion of motion parts and friction during moving and lowers invalid power consumption.

Description

technical field [0001] The invention relates to the field of refrigeration compressors, in particular to a linear compressor with a combined spring support structure capable of preventing lateral deviation and twisting of moving parts. Background technique [0002] The linear compressor is a device that uses the linear driving force of the linear motor to drive the piston in the cylinder to reciprocate, suck in low-pressure gas and compress it into high-pressure gas. Generally, linear compressors are manufactured by connecting the piston and permanent magnet parts as a whole, replacing the crankshaft as the actuator of the linear motor. During the working process of the linear compressor, under the influence of periodically changing electromagnetic force, the permanent magnet part will drive the entire moving part to reciprocate, while the resonant spring will provide the necessary mechanical force for the entire system during this process to offset the inertia of the moving...

AI Technical Summary

Problems solved by technology

[0005] Since the cylindrical spring cannot bear force in the direction of the vertical axis, after a long period of vibration, the moving parts will bend or rotate, which greatly affects the coaxiality of the moving parts and the stator part, and increases the work of the compressor. consumption, reducing the service life

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