Linear compressor

Abstract

A linear compressor is composed of a cover, a cylinder, an inner stator assembly, an outer stator assembly, a magnet assembly, at least one inner resonance spring and a plurality of outer resonance springs. an inner stator assembly fixedly installed at the frame in a state that its inner circumferential surface contacts an outer circumferential surface of the cylinder. With this construction, the gap between the cylinder and the inner stator assembly is is removed, reducing the inner diameter of the inner stator assembly, according to which the inner diameter of the magnet assembly is minimized, remarkably reducing the amount of the magnet to be used and the size of the motor, and thus, its production cost can be much reduced. In addition, since the inner resonance springs or the outer resonance spring are provided in plural number, its spring force can be dispersed and the mechanical reliability of the magnet assembly is highly improved.

Description

technical field [0001] The present invention relates to a linear compressor, and more particularly to a linear compressor in which the inner peripheral surface of the inner stator part is attached to the outer peripheral surface of the cylinder to reduce the inner diameter of the magnet part, thereby reducing the used The amount of magnet and the size of the device. Background technique [0002] figure 1 A linear compressor according to the prior art is shown. As shown in the figure, a general linear compressor is driven by a linear motor composed of an inner stator part 4A constituting a stator, an outer stator part 4B, and a magnet part 5 constituting a rotor. [0003] The linear compressor includes a compression unit C installed horizontally on the inner side of a case V, which is used to draw in, compress and discharge gas, and oil is installed at the bottom of the case V; and an oil feeder O, the oil feeder O is firmly combined with the compression unit C outside it ...

AI Technical Summary

Problems solved by technology

Therefore, the inner diameter of the magnet holder of the magnet part inserted between the outer peripheral surface of the inner stator part and the inner peripheral surface of the outer stator part is enlarged, which results in that the expensive magnets necessary for constituting the magnet part must exceed the output of the motor. required amount, thus, the size of the motor is increased, and there is a problem that the manufacturing cost increases

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