Linear compressor and assembly method thereof

Abstract

The invention provides a linear compressor and an assembling method thereof. The linear compressor comprises a shell, a piston, an air cylinder, an inner stator, an outer stator, a coil and a front flange plate, wherein the piston, the air cylinder, the inner stator, the outer stator, the coil and the front flange plate are arranged in the shell. The air cylinder and the outer stator are arranged on the front flange plate. The piston is inserted into the air cylinder. A sleeve is arranged on the back portion of the front flange plate coaxially. A flanging structure is arranged at the free end of the sleeve. A mounting groove is formed between the flanging structure and the back surface of the front flange plate. The inner stator is arranged in the mounting groove. The coil is arranged on the inner stator. A rod body of the piston is inserted into the sleeve. The assembling efficiency and the assembling quality of the linear compressor are improved.

Description

technical field [0001] The invention relates to a compressor, in particular to a linear compressor and an assembly method thereof. Background technique [0002] At present, there are two types of compressors used in refrigeration equipment, rotary and linear. The linear compressors in the prior art usually include a shell, a cylinder, a piston, an outer stator, an inner stator, a coil, a front flange, and a stator pressure plate, etc. Components, for example: a linear compressor disclosed in Chinese Patent Application No. 201310044152.7, the piston and the outer stator are fixed on the front flange, while the inner stator needs to be fixed on the front flange through the stator pressure plate, and then , the rod body of the piston is inserted into the inner cavity formed by the inner stator and needs to be arranged coaxially with the inner stator. However, in the actual assembly process, after the inner stator is fixedly installed on the front flange through the stator pres...

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Problems solved by technology

However, in the actual assembly process, after the inner stator is fixedly installed on the front flange through the stator pressure plate, the coaxiality between the inner stator pressure plate, the inner stator and the front flange is poor, resulting in the side of the rod body of the piston The bias force is large, which is easy to increase the mechanical friction and cause failure, and the severe friction also leads to the reduction of mechanical efficiency; moreover, it needs to be adjusted with the help of additional coaxiality control tooling during assembly, which is difficult to assemble and low in assembly efficiency

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