Linear compressor

Abstract

The invention relates to the technical field of compressors, and discloses a linear compressor which comprises a compressor core, the compressor core comprises a linear motor, an air cylinder, a piston and a flat spring assembly, the air cylinder is arranged in a cylinder of an inner stator of the linear motor, the piston is arranged in the air cylinder, and the air cylinder, the inner stator and the piston are coaxially arranged; flat spring assemblies are fixedly arranged at the two ends of the linear motor respectively, and the two ends of the piston penetrate out of the air cylinder to be supported and connected to the corresponding flat spring assemblies respectively, so that the piston is suspended in the air cylinder. According to the linear compressor, the air cylinder and the piston are arranged in the cylinder of the inner stator of the linear motor, so that the internal space of the motor can be effectively utilized, and the size of the compressor can be reduced; in addition, the double-side flat spring assembly is adopted to support the piston, the piston is suspended in the air cylinder, non-contact reciprocating motion of the piston and the air cylinder is achieved, the reliability of the piston during motion is improved, vibration of the compressor is reduced, and vibration noise is reduced.

Description

Technical field [0001] The present invention relates to the field of compressor technology, in particular to a linear compressor. Background [0002] In the field of cryogenics, the compressor used to drive stirling chillers and pulse tube chillers is mainly a valveless linear compressor. The linear compressor adopts linear motor direct drive, eliminating the crank connecting rod mechanism of the traditional reciprocating piston compressor, reducing the motion conversion device, and greatly improving the efficiency of the compressor, thus gaining wide attention and application. [0003] At present, the most widely used is the Redlich type structure of the dynamic magnetic linear oscillation motor, this structure of the dynamic magnetic linear oscillation motor is to install the magnetic conductive material on the circumference of the excitation coil, the formation of a cylindrical air gap with the excitation coil concentric magnetic circuit structure, by the cylindrical inner and...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a linear compressor, which is used to solve or partly solve the problems that existing compressors occupy a large installation size and the vibration of the whole machine is relatively large, thereby limiting the application range.

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