Linear arm plate spring linear compressor

Abstract

The invention discloses a linear arm plate spring linear compressor. The compressor efficiency of an existing linear compressor is reduced due to the fact that the position of a compressor piston is prone to radial displacement caused by low radial rigidity of a plate spring. The linear arm plate spring linear compressor includes a compressor assembly, a magnetic field assembly, an alternating current motor assembly, and a plate spring assembly; the compressor assembly includes a box body, a machine frame and a cylinder; the magnetic field assembly includes a permanent magnet and a yoke; the alternating current motor assembly includes an alternating current coil and a supporting frame; the plate spring assembly includes a plate spring base and a plate spring group; and the plate spring group includes 2-5 pieces of linear plate springs, the adjacent linear plate springs are separated by washers, the linear plate springs are in a disc shape, three or four olive-shaped through holes are symmetrically formed, and elastic beams are arranged between the adjacent two through holes. A simple linear arm plate spring structure is adopted, the mass of the spring is reduced, the elastic coefficient is unchanged, the resonance frequency of the spring and a system is increased, the compressor is operated at a higher frequency, and the efficiency of the compressor is improved.

Description

technical field [0001] The invention belongs to the technical field of compressors, and relates to a moving coil linear compressor, in particular to a linear arm plate spring linear compressor. Background technique [0002] Linear compressors in cryogenic engineering provide dynamic pressure waves to cryocoolers that power the entire refrigeration cycle. It mainly uses a linear motor to drive the piston to make a reciprocating linear motion in the cylinder. According to the theory of electromagnetic field, the linear motor exerts a linear force on the piston that is absolutely parallel to the axial direction of the piston. Therefore, in theory, a correctly designed linear compressor is completely Radial forces on the piston are eliminated. Therefore, linear compressors have very important applications in special fields such as aerospace and military that require long life, high reliability and high efficiency. The leaf spring in the existing linear compressor adopts the sc...

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Problems solved by technology

[0004] In the working process of the existing linear compressor, when the AC coil reciprocates in the magnetic field, it drives the piston to move, and the position of the piston is prone to displacement, causing gas leakage from the gap and wear of the piston head and the compressor, reducing the plate spring Lateral and radial stiffness, reducing compressor efficiency

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