Scroll compressor

Abstract

Provided is a scroll compressor which can contribute to reduction of the entire size and the entire weight thereof, and has excellent durability and reliability. The scroll compressor can be operated at an ultrahigh speed by applying a new refrigerant to the scroll compressor. In the scroll compressor, the substrate of an Oldham's ring (107) is composed of an aluminum alloy, and a hard DLC layer is formed on the surface of the substrate via foundation layers which have an excellent adhesiveness and compensate for the hardness and, accordingly, the weight of the Oldham's ring is reduced by approximately 1/3, and the adhesion and abrasion between sliding members are prevented to improve the abrasion resistance and reduce the friction coefficient and, additionally, the inertia mass of a rotation system is reduced. Furthermore, a rotary scroll (101) has a material structure similar to the structure of the Oldham's ring and, accordingly, the eccentric mass of a rotation system is reduced. Thus, the torque load of a motor (100) can be extremely reduced, the entire size and weight can be reduced, and the durability and reliability are excellent. The scroll compressor can be operated at a ultrahigh speed by applying a new refrigerant to the scroll compressor, and the compression performance similar to that obtained when chlorofluorocarbon is used can be obtained.

Description

technical field [0001] The present invention relates to a compressor suitable as a refrigeration / air-conditioning circuit in an air-conditioning and hot-water supply system for next-generation houses with a high ecological (environmental response) effect, and capable of performing new refrigeration with a low global warming factor (GWP). The motor system of the agent can operate in a wide range of driving signal frequencies, and it is a scroll compressor with a compact and lightweight structure that is excellent in durability and reliability under ultra-high-speed operation. Background technique [0002] Conventionally, Oldham's rings and orbiting scrolls, which are sliding members whose sliding properties increase during operation, are generally used in scroll compressors used in refrigeration and air-conditioning circuits (also called refrigerant cycles) of air conditioners or refrigerators. Hard and highly wear-resistant iron-based material. [0003] However, Freon, whic...

AI Technical Summary

Problems solved by technology

If the base layer is only a resin material or a Ni-P plating layer, it may not be able to maintain the adhesion for a long time and stably under the conditions of use that assume considerable heat generated by sliding when exposed to high-pressure gas formed by a new refrigerant. dangerous

In particular, the aluminum substrate is very soft compared to iron, and the DLC on the surface is hard. Therefore, when the hard DLC is subjected to sliding under high pressure, the DLC deforms the base layer or the aluminum substrate, or depending on the degree of deformation And DLC also has the risk of stripping

[0016] In addition, in the technology of Patent Document 2, the reason why the Oldham ring is made of an iron-based material is to reduce the eccentric mass in the case of the orbiting scroll when the sliding member of the compressor is operated at an ultra-high speed. Eccentric rotation is performed, and the structure has a mass balance, thereby eliminating the eccentric mass. However, the Oldham ring restricts the autorotation of the orbiting scroll due to the reciprocating movement, thereby causing the compressor to orbit. Therefore, in the structure cannot have a mass balance on it, so that the eccentric mass cannot be eliminated

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