Scroll wrap line for scroll compressor

Abstract

The invention discloses a line section and arc combination line for a scroll compressor, which is formed by combining arcs and line sections in turn. The line section and arc combination line can form a scroll wrap with equal wall thickness and can be used as a single scroll wrap line, a single scroll wrap fully-meshed line, and a double scroll wrap line, and a moving scroll wrap and a static scroll wrap can be meshed correctly during working; and when the line section and arc combination line is used as the single scroll wrap line, a formed single scroll wrap is approximately square. The line section and arc combination line provided by the invention can effectively improve the utilization rate of the area of a scroll, effectively increase the inspiratory capacity of the scroll compressor and the compression ratio under the condition of the same contour dimension of the scroll, and can reduce the contour dimension of the scroll under the condition of the same inspiratory capacity; meanwhile, the formed scroll wrap can increase the area of the central part of a scroll wrap head, contributes to forming of a vent hole with a large area, reduces air exhaust loss and has high comprehensive performance. Further, the line section and arc combination line contributes to improving the performance of the scroll compressor further, and has great significance to the enrichment of the types of the scroll wrap lines and development of the scroll compressor.

Description

technical field [0001] The invention belongs to the technical field of compressors, and particularly relates to a scroll tooth profile of a scroll compressor. Background technique [0002] Scroll compressors are widely developed in the fields of refrigeration, air conditioning and gas transportation due to their remarkable advantages of high volumetric efficiency, high reliability and low vibration and noise. The scroll tooth profile type has always been the key technology of the scroll compressor. The existing scroll tooth profile types mainly include: circular involute, regular polygon involute, parallelogram involute, semicircle eccentric line, line segment Involutes, Archimedes Spirals, Algebraic Spirals, Reduced Base Circle Involutes, Envelope Profiles, and Universal Profiles. With the gradual expansion of the application field of scroll compressors, the types of scroll tooth profiles have also become rich, and many combined profiles have appeared: circular involute-ar...

AI Technical Summary

Problems solved by technology

However, there is little research on the use of line segments as scroll tooth profiles. There is an arc-arc-line unit combined profile (AAL profile for short) consisting of large arcs, small arcs, and line segments. , this combined profile can form equal-wall-thick scroll teeth, but the scroll formed by this combined profile is approximately elliptical, which is inconvenient for application

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