Linear compressor and control method thereof

Abstract

The invention provides a linear compressor. The linear compressor comprises a shell. Motor modules are correspondingly arranged at the two ends of the shell. Each motor module comprises a cylinder, apiston, a stator, a coil, a mover and a permanent magnet. Each piston is arranged on the corresponding mover and slidably arranged in the corresponding cylinder. Each coil is arranged on the corresponding stator. Each stator is arranged on the corresponding cylinder. Each permanent magnet is arranged on the corresponding mover and located within a magnetic field range formed by the corresponding coil. A resonance plate spring is arranged between the two motor modules. The movers are fixed to the resonance plate spring. By the adoption of the linear compressor, the whole structure of the linearcompressor is simplified, quick assembly is facilitated, and the motor efficiency of the linear compressor is improved.

Description

technical field [0001] The invention relates to a compressor, in particular to a linear compressor and a control 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 shells, stators, coils, movers, pistons, cylinders, spring back baffles and springs. wherein, the mover is provided with a magnet, the magnet is inserted into the magnetic field space formed by the stator, a coil is placed in the stator, one end of the piston is connected to the mover, and the other end of the piston is inserted into the inner cavity of the cylinder. During use, the coil is energized to generate an alternating magnetic field to drive the mover to drive the piston to reciprocate at high frequency. However, during the reciprocating movement of the piston, only one-way is useful work, and the return journey is useless work. Chinese Patent No. 200720087...

AI Technical Summary

Problems solved by technology

However, during the reciprocating movement of the piston, only one-way is useful work, and the return journey is useless work. Chinese Patent No. 200720087539.0 discloses a double-cylinder electromagnetic compressor, which can perform useful work when the piston reciprocates. However, the technology disclosed in the above-mentioned patent In the scheme, resonant leaf springs are arranged at both ends of the housing, and the two coils are arranged in the middle of the housing. In actual use, due to the short distance between the two coils, the coils are likely to interact with each other after being energized, and the magnetic field saturation is prone to occur. , leading to a reduction in the efficiency of the compressor

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