Scroll wrap molded line, scroll plate structure and scroll compressor

Abstract

The invention relates to the technical field of air conditioners, in particular to a scroll wrap molded line, a scroll plate structure and a scroll compressor. The outer side molded line and the inner side molded line of the scroll wrap molded line are both composed of involute lines. The outer side molded line and the inner side molded line are arranged in a matched manner so that the tooth wall of a scroll wrap can be formed, and the thickness of the tooth wall is gradually increased from the center of the scroll wrap to the outer edge of the scroll wrap; delta t is the thickness change value of the tooth wall of the scroll wrap, and the thickness of the portion, at the center of the scroll wrap, of the tooth wall is smaller than the thickness of the portion, at the outer edge of the scroll wrap, of the tooth wall by 2 delta t. A moving scroll plate of the scroll plate structure is provided with the scroll wrap molded line, a fixed scroll plate is provided with a fixed tooth molded line which is composed of involute lines and meshed with the scroll wrap molded line, and the fixed tooth molded line and the scroll wrap molded line are staggered by 180 degrees. The scroll compressor comprises the scroll plate structure. The scroll wrap molded line, the scroll plate structure and the scroll compressor cannot change the crankshaft eccentricity, and therefore scroll plate stress caused by temperature and pressure is reduced, and strength is improved; and a meshing gap is not changed, and therefore inner leakage is avoided.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a scroll profile, a scroll structure and a scroll compressor. Background technique [0002] Scroll compressors are widely used in systems such as air conditioners and heat pumps because of their high efficiency, small size, light weight, and smooth operation. The working principle of the existing scroll compressor is: through the mutual cooperation of the moving scroll and the fixed scroll, driven by the crankshaft, the refrigerant forms a continuous operation of suction, compression and discharge in the scroll. During the compression process of the refrigerant, the pressure and temperature gradually increase from the outer side of the scroll to the center, and the pressure and temperature are the highest at the center side. Under the action of refrigerant, the deformation of the scroll wall of the scroll is the largest at the center side, and the force it receives is a...

AI Technical Summary

Problems solved by technology

However, reducing the eccentricity of the crankshaft will cause the meshing gap between the moving scroll and the entire involute of the fixed scroll to increase, which will increase the internal leakage between the moving scroll and the fixed scroll , resulting in a decrease in the overall performance of the scroll compressor

Images