Rotary compressor

Abstract

The invention discloses a rotary compressor. A compression component of the rotary compressor comprises a crankshaft, an air cylinder, an upper bearing, a lower bearing, a piston and a sliding block which moves along a sliding block groove, wherein an air exhaust cavity of the air cylinder is provided with a resonant chamber; the resonant chamber comprises an air exhaust cut and a resonant cavitybetween which the sliding block with a communicating channel is arranged; and a communicating state or an isolating state of the air exhaust cut and the resonant cavity is switched by the moving sliding block through the communicating channel. When the rotary compressor compresses air, a high-pressure air column in the air cylinder can enter the resonant chamber at a specific position; in the airsucking process, the high-pressure air column in the air cylinder cannot flow back, high-pressure air only can be permeated through a gap between the sliding block and the sliding block groove of theair cylinder, so that the problem that the air sucking efficiency of the conventional compressor is reduced is solved.

Description

technical field [0001] The invention relates to the field of compressors, in particular to a rotary compressor for air conditioners. Background technique [0002] Such as Figure 1~3 The hermetic rotary compressor shown generally requires a compression assembly and a motor assembly. The existing motor assembly includes a stator and a rotor. The existing compression assembly includes a crankshaft 14, a cylinder 3, an upper bearing 11, a lower bearing 15, a piston 13 and a slide Block 1`. The piston 13 and the slide block 1` in the compression assembly are installed inside the cylinder 3, and a rotating crankshaft 14 with an eccentric part is arranged inside the cylinder 3, and the upper and lower end surfaces of the cylinder 3 are closed by upper and lower bearings, so that a A cavity that can be off-centered. And, the refrigerant sucked in from the suction pipe is compressed in the compression chamber of the cylinder 3, and then the compressed refrigerant is discharged out...

AI Technical Summary

Problems solved by technology

Although the noise reduction effect is achieved, due to the need for the air column to oscillate back and forth, the air column all flows into the cylinder suction chamber during the return journey from the resonance chamber 23 to the cylinder 13. Because the high-pressure gas flows into the low-pressure chamber, this Part of the high-pressure gas expands and occupies part of the volume of the suction chamber of the cylinder, which reduces the volume of the suction chamber, reduces the suction efficiency of the compressor, and loses energy.

like figure 2 , 3 As shown, the flow path of the traditional resonance chamber design is that the resonance chamber 23 is always in communication with the cylinder exhaust cutout 24, so whether the high-pressure gas in the cylinder is discharged into the resonance chamber 23, or the high-pressure gas in the resonance chamber 23 flows back into the discharge The air cutout 24 and then flow into the cylinder cannot prevent the high-pressure gas from finally flowing into the compression chamber of the cylinder, resulting in energy loss

Images