Closed revolving compressor

Abstract

Attaining reduction in cost and improvement in reliability in a hermetic rotary compressor while ensuring compressor performance. The thickness of each cylinder 8 and 8A for constituting compression elements is set larger than that of a partitioning plate 10. One intake passage 12 extending from a side opening to the center is formed on the partitioning plate 10, and communicating holes 13 branched from the intake passage 12 to both sides and extended to the intake chamber of each compression element is formed, and one intake conduit extending through a hermetic casing 1 is connected to the intake passage 12.

Description

technical field [0001] The present invention relates to a hermetic rotary compressor, and more particularly to a hermetic rotary compressor used for refrigerators of air conditioners, cold air application products, and the like. Background technique [0002] As a conventional hermetic rotary compressor, as shown in Japanese Patent Laid-Open No. 63-134188 (Prior Art 1), this type of compressor houses a motor unit and a compression mechanism unit connected by a crankshaft in a hermetic container. , The compression mechanism part is formed by two compression elements sandwiching the partition, and the refrigerant gas is sucked into the compression element through the suction line, and is compressed and discharged into the space in the airtight container. Suction passages are formed in the cylinders constituting the two compression elements, and independent suction lines are connected to the two suction passages, respectively. [0003] In addition, as a conventional hermetic ro...

AI Technical Summary

Problems solved by technology

Therefore, in prior art 1, it is necessary to increase the compressive strength of the airtight container, and there are problems such as the need for special measures such as increasing the plate thickness and improving the rigid shape.

[0006] In addition, in prior art 1, when the suction line is connected to the suction passage of the cylinder, a sliding force acts relatively between the bearing fixed to the airtight container and the cylinder, so that there is a special need to prevent mutual displacement. assembly process problems

[0007] On the other hand, in the hermetic rotary compressor of the prior art 2, since the thickness of the cylinder constituting the compression element is extremely thin and is less than half of the thickness of the partition, when the suction passage is formed in the partition, the suction passage The cross-sectional area of ​​the flow path becomes smaller, which increases the suction resistance of the refrigerant gas and reduces the performance of the compressor.

[0008] In addition, in prior art 2, there is no specific suction passage structure for improving performance.

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