Scroll compressor with sealing assembly with silencing structure and fixedly connected with diaphragm plate

Abstract

The invention discloses a scroll compressor with a sealing assembly with a silencing structure and fixedly connected with a diaphragm plate. The scroll compressor comprises an upper shell, a lower shell, a motor, a main bearing, a movable scroll, a static scroll and a sealing assembly, wherein the sealing assembly comprises an upper fixing plate, a lower fixing plate, an outer sealing ring and aninner sealing ring; the lower end of the upper fixing plate is provided with a lower flange and the lower flange is provided with a circle of uniformly distributed rivet holes; the upper end of the upper fixing plate is provided with a circular sealing plate and the sealing plate is provided with a plurality of silencing holes; a middle round table is connected between the lower flange and the sealing plate; an inclined plane is arranged at the joint of the middle round table and the sealing plate; rivet columns corresponding to the rivet holes are arranged on the lower fixing plate, and the upper fixing plate, the lower fixing plate, the outer sealing ring and the inner sealing ring are riveted together by the rivet columns; and the inclined plane is in annular welding connection with thecentral hole of the diaphragm plate. With the scroll compressor, the problem that the original sealing assembly is not strict in sealing is thoroughly avoided. Meanwhile, the noise reduction and silencing effects are achieved due to the fact that the plurality of silencing holes are formed in the sealing plate.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a scroll compressor with a sealing assembly of a sound-absorbing structure and fixed to a diaphragm. Background technique [0002] At present, axial flexible sealing technology has been successfully applied to scroll compressors. The compression part of the scroll compressor is composed of a movable scroll and a fixed scroll. The top of the fixed scroll is provided with a back pressure chamber, which communicates with the scroll compression chamber and is provided with a floating sealing plate. The inner sealing ring and the outer sealing ring of the floating sealing plate isolate the back pressure chamber from the low pressure chamber on the suction side and the high pressure chamber on the exhaust side respectively, forming a relatively sealed back pressure chamber, whose pressure is the same as the suction pressure and the connection hole Location dependent. When the com...

AI Technical Summary

Problems solved by technology

Since the axial thrust of the static scroll is related to the suction pressure and exhaust pressure, although this solution can better adapt to different working conditions, the above-mentioned floating sealing plate and the lower end surface of the partition form when the floating sealing plate floats. The sealing surface is a metal contact surface. This contact type seal is prone to leakage and reduces the working efficiency of the compressor.

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