Scroll compressor

Abstract

The invention discloses a scroll compressor. The scroll compressor comprises a dynamic scroll plate and a static scroll plate. A scroll groove is formed in the end face of each of the dynamic scroll plate and the static scroll plate. The cross section of each scroll groove is rectangular. A sealing strip is arranged in each scroll groove, and is higher than the corresponding scroll groove. The sealing strips are elastic pieces, and ventilating grooves are formed in the reverse sides of the sealing strips axially. Outwardly-expanding side walls are formed on two radial sides of each ventilatinggroove, and can contact with two sides of the corresponding scroll groove in an interference mode after being expanded. The scroll compressor has the advantages that through structural optimization of the sealing strips, the outwardly-expanding side walls of the sealing strips contact with two sides of the corresponding scroll grooves tightly when the sealing strips are jacked up, and radial gapsbetween the sealing strips and the scroll grooves are filled up, so that the sealing effect of the end faces of the scroll plates is enhanced, and the efficiency of the compressor is improved.

Description

technical field [0001] The invention relates to a scroll compressor, in particular to an end face sealing structure of a scroll disk thereof. Background technique [0002] Due to the characteristics of high efficiency, small size, light weight, low noise and simple structure, scroll compressors are widely used in air conditioners and refrigeration units, and have become one of the main directions of compressor development. The scroll compressor mainly includes two similar scrolls, which are called the moving scroll and the fixed scroll respectively. The moving scroll and the fixed scroll are matched together at an angle of 180° to form the compression chamber of the compressor. . [0003] At present, it is proposed in this field at home and abroad that a scroll groove 4' is opened on the scroll end faces of the movable scroll 1' and the fixed scroll 2', the scroll groove 4' is opened along the direction of the scroll, and the scroll groove 4 'The two ends are not opened, a...

AI Technical Summary

Problems solved by technology

[0004] Although this structure can play a certain sealing role, there is inevitably a gap between the sealing strip 3' and the scroll groove 4' in the radial direction. When the gap is too large or uneven, the high-pressure refrigerant flows from both sides of the sealing strip. A small amount of leakage from the side to the low-pressure side, the high and low pressure on both sides of the vortex collude, resulting in a decrease in the efficiency of the compressor. seal

In addition, due to the large difference in temperature from the head to the tail of the scroll seal strip, the radial gap between the scroll groove 4' and the seal strip 3' is inconsistent in each section, which will cause leakage at the scroll head, and the scroll tail Cannot be jacked up effectively, reducing the efficiency of the compressor

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