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Sliding component and swirl motor compressor using the same

A technology of electric compressors, sliding components, applied in the direction of rotary piston machinery, engine components, machines/engines, etc.

Active Publication Date: 2011-06-15
HITACHI JOHNSON CONTROLS AIR CONDITIONING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007]However, since the chlorine-free alternative refrigerant cannot expect the lubrication effect of chlorine, various unreasonable problems may arise due to insufficient lubrication of sliding parts situation, therefore, the scroll electric compressor must be maintained and overhauled at short intervals

Method used

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  • Sliding component and swirl motor compressor using the same
  • Sliding component and swirl motor compressor using the same
  • Sliding component and swirl motor compressor using the same

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Embodiment Construction

[0029] Hereinafter, an embodiment of the sliding member of the present invention will be described regarding a case where it is applied to an Oldham ring of a scroll electric compressor shown in FIGS. 1 to 5 .

[0030] The scroll electric compressor is a closed container 1 that stores lubricating oil at the bottom, a compression equipment part 2 that is installed in the closed container 1 and compresses chlorine-free alternative refrigerants or natural refrigerants, and rotates to drive the compressor. The rotary shaft 7 of the equipment unit 2 and the motor 9 for driving the rotary shaft 7 are the main components, and are vertical scroll electric compressors arranged in the vertical direction.

[0031] As an alternative refrigerant that does not contain chlorine, any one of R410a, carbon dioxide, and propane is used.

[0032] The compressor unit 2 is provided with a fixed turbine 5 standing downward on a fixed base plate 5a to form a scroll-shaped drum 5b, and a rotary turbin...

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Abstract

The invention provides a sliding member which is able to further improve wearability and is not maintained for a long time by using substitute refrigerant without chlorine or natural refrigerant and a scroll motor compressor using the sliding member. The invention forms an oxydizing membrane layer (14) on the surface of the sliding member (8) formed by sintered iron, and forms an intermediate layer (15) on the oxidizing membrane layer (14), and forms an oxide layer (14A) and forms a hard carbon membrane layer (16) on the intermediate layer (15). As above, the surface of the sliding member (8)is orderly formed with the oxydizing membrane layer (14), the oxide layer (14A), the intermediate layer (15) and the hard carbon membrane layer (16), so as to contact the hard carbon membrane layer (16) with excellent wearability and low friction with the surface of the sliding member (8) and not to maintain for a long time.

Description

technical field [0001] The present invention relates to a sliding member and a scroll electric compressor using the sliding member, in particular to a sliding member used in a refrigerant atmosphere and a scroll electric compressor using the sliding member. Background technique [0002] In general, scroll electric compressors are excellent in high efficiency, low noise, and low vibration, and thus are widely used in air conditioners that compress refrigerants, water heaters, automatic washing machines, and the like in both domestic and commercial fields. [0003] Such a scroll electric compressor is described in, for example, Patent Document 1, which is formed as a sliding member used in a refrigerant atmosphere by combining a fixed turbine with a lap forming a scroll curve and a lap with the same lap. The rotating turbine meshes to make the rotating turbine rotate. By meshing the two turbines, several compression chambers are thus formed between the two turbines. In addit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B33/00F04C18/02B32B7/02F04C28/00F04C29/00
CPCC23C14/06F01C17/066F04C18/0215F04C29/028F04C2210/26F04C2230/92F04C2240/40Y10S415/00Y10S417/00
Inventor 高安博马场升大岛健一山中敏昭
Owner HITACHI JOHNSON CONTROLS AIR CONDITIONING INC
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