Rotary compressor

Abstract

In a rotating compressor, an outer peripheral surface (40) of a partition member (23) which is secured firmly to a casing (10) so as to divide the inside of the casing (10) into a high-level pressure space and a low-level pressure space, is provided with a peripheral groove (42) for allowing for shrinkage of the casing (10) at a weld area where a trunk part (11) and end plate (12) of the casing (10) are welded together. As a result of such arrangement, the partition member (23) is strongly tightened by making utilization of such shrinkage, thereby not only enhancing sealability between the high-level pressure space and the low-level pressure space in the inside of the casing (10) but also preventing a drop in workability during assembling and an increase in cost.

Description

technical field

[0001] The present invention relates to a rotary compressor, in particular to a seal structure between a high-pressure space and a low-pressure space in a casing. Background technique

[0002] In the past, rotary compressors including scroll type (scroll), swing type (swing), or rolling piston type (rollingpiston) (rotary-rotary) and other compression mechanisms, for example, in (Japan) The method disclosed in KOKAI Publication No. 2000-97183 can be used for compressing refrigerant gas in a refrigerating device that performs a refrigerating cycle in an air conditioner or the like. A compressor motor is incorporated in a rotary compressor, and the compressor motor is used as a power source to drive the compression mechanisms of the above-mentioned various systems.

[0003] Here, with regard to the schematic structure of conventional rotary compressors, Figure 10 A scroll-type compressor (100) is shown for illustration.

[0004] The...

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