Swirl compressor

Abstract

The invention discloses a scroll compressor, which comprises a casing body, a main frame fixed inside the casing body, a fixed scroll pan arranged on the main frame, and a pressing ring which is prevented from being deformed when the fixed scroll pan is forcibly pressed into the inner periphery of the casing body. The fixed scroll pan is fixed on the main frame through a plurality of multi-section bolts; and the fixed scroll pan and the pressing ring are supported by the multi-section bolts in the axial direction. The scroll compressor can prevent the pressing ring from being raised in the axial direction under various operating environments, seal the interior of the casing body to form a suction space and a discharge space, and prevent refrigerant gas discharged into the discharge space S2 from being leaked into the suction space S1, thereby improving the compression efficiency.

Description

technical field [0001] The invention relates to a compressor, in particular to a scroll compressor. Background technique [0002] Generally, scroll compressors are high-efficiency and low-noise compressors widely used in air conditioners. In a scroll compressor, two scrolls perform relative rotational motion, thereby forming a compression chamber between the two scrolls, and the compression chamber continuously moves toward the center, and its volume gradually becomes smaller, thereby continuously The refrigerant is sucked in, compressed and discharged. [0003] figure 1 is a longitudinal sectional view of an existing scroll compressor, figure 2 yes figure 1 An enlarged side sectional view of the bolt portion of . [0004] Such as figure 1 , figure 2 As shown, the existing scroll compressor includes: a housing 101 provided with a gas suction pipe SP and a gas discharge pipe DP; a main frame 102 and a sub-frame respectively fixed on the upper and lower sides of the i...

AI Technical Summary

Problems solved by technology

[0013] However, in the scroll compressor of the prior art as described above, since the press-in ring 107 is arranged in an encircling manner, when the fixed scroll 106 is forced into the housing 101 in a heat-fitting manner, the In this case, the positions of the press-in ring 107 and the fixed scroll 106 may be shifted from each other or the press-in ring 107 may be lifted due to vibration, so that the inside of the housing 101 cannot be completely sealed into the suction space S1 and the discharge space. S2

[0014] As a result, the high-pressure refrigerant gas discharged into the discharge space S2 leaks into the suction space S1 through an unsealed gap, resulting in a decrease in compression efficiency.

Images