Muffler for hermetic rotary compressor

Abstract

The invention relates to a sound absorber of sealed rotation compressor, which comprises a motor stator and a rotor mounted at the upper part inside the compressor frame; the lower end of eccentric axle at the middle of rotor is arranged with compressor; inside the cylinder at the lower part of sealed frame, the eccentric part of eccentric axle is arranged with rolling piston; the upper and lower ends surfaces of cylinder are fixed with upper and lower bearings that supporting the rotation of eccentric axle; the upper bearing is mounted with a sound absorber through the axle hole into the upper bearing neck axle; the axle hole and the neck axle are sealed connected. The invention can avoid the leakage of high pressure gas, via the seal connection between the axle hole and the neck axle, to improve the efficiency and reduce the noise.

Description

technical field [0001] The invention relates to a device for a compressor, in particular to a muffler for a hermetic rotary compressor. Background technique [0002] In general, compressors are classified into hermetic compressors or separate compressors according to the configuration of the motor and compressor. Among them, the hermetic compressor is that the motor and the compressor are arranged together in a hermetic container. figure 1 It is a schematic diagram of a longitudinal section structure of a hermetic rotary compressor in the prior art; figure 2 yes figure 1 Partial enlarged view of image 3 It is a top view structure schematic diagram of the muffler of the hermetic rotary compressor in the prior art; [0003] As shown in the figure, in the hermetic rotary compressor in the prior art, the stator 2 and the rotor 3 of the motor are arranged in the upper part of the airtight casing 1, wherein the center of the rotor 3 has an eccentric shaft 4, and the lower en...

AI Technical Summary

Problems solved by technology

[0008] However, the flat-top muffler 11 shaft hole 15 of the usual above-mentioned structure is relatively large, and the shaft hole 15 forms a gap with the neck shaft of the upper bearing 7, which causes the leakage of high-pressure gas, greatly reduces the efficiency of the muffler 11, and increases Loud compressor noise

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