Closed type fluid machine

A technology of fluid machinery and fluid pressure, applied in the field of closed fluid machinery, can solve the problems of fluid machinery productivity decline, device enlargement, cost increase, etc., achieve the effect of suppressing weight increase, preventing enlargement, and ensuring quietness

Inactive Publication Date: 2008-04-30
SANDEN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, in the hermetically sealed fluid machine described in Patent Document 1, there is a problem that the entire device is enlarged due to the installation of the sound-insulating case.
In addition, the external shape of the airtight fluid machine varies according to its specifications. If the sound insulation case is made according to the external shape, the productivity of the fluid machine will decrease, and there is also a problem of increasing the cost.

Method used

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  • Closed type fluid machine

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Embodiment Construction

[0024] FIG. 1 shows an electric scroll compressor 1 as a hermetic fluid machine according to an embodiment of the present invention. This compressor 1 is used, for example, as a compressor for a refrigeration circuit of a refrigerator. The compressor 1 has a cylindrical housing 10 including a unit housing 12 , a support arm 14 , and a stator housing 16 in this order from the right in FIG. 1 . Both the unit case 12 and the stator case 16 are formed of aluminum, and are joined to each other with the support arm 14 interposed therebetween. The casings 12, 16 and the support arm 14 are hermetically bonded by O-rings, respectively.

[0025] A scroll unit 18 serving as a fluid pressure unit is accommodated in the unit case 12 . The scroll unit 18 has a fixed scroll 20 and a movable scroll 22 . The movable scroll 22 is arranged on the support arm 14 side, and the fixed scroll 20 is fixed to the end wall 12 a of the unit casing 12 by a plurality of fixing bolts 24 . These scroll wa...

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Abstract

An electric scroll compressor (1) as a closed type fluid machine, comprising a housing (10) in which a scroll unit (18) and an armature (40) driving the scroll unit (18) are contained. A resin coating layer (72) with a thickness of 50µm or more is formed on at least a part of the outer surface of the housing (10). A silent closed type fluid machine can be thus provided without increasing size and deteriorating productivity.

Description

technical field [0001] The present invention relates to a sealed fluid machine, in particular to a sealed fluid machine with reduced noise and vibration. Background technique [0002] A hermetically sealed fluid machine is used, for example, as a compressor in a refrigeration circuit of a refrigerator. A compression unit, which is a fluid pressure unit for a working fluid, and an armature that drives the compression unit are accommodated in a housing thereof. [0003] As such a hermetically sealed fluid machine, there is a case in which a sound-insulating case is provided outside the casing, and the sound-insulating case serves to reduce noise transmitted to the outside when the fluid machine operates (Patent Document 1). [0004] Patent Document 1: Japanese Patent Laid-Open No. 2003-201961 [0005] However, in the hermetically sealed fluid machine described in Patent Document 1, there is a problem that the entire device is enlarged due to the installation of the sound insu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/00F04B39/12F04C29/06
CPCF04C23/008F05C2253/20F04C2240/30F04C18/0215F04C29/066F04C2230/91
Inventor 小板桥芳隆小山茂幸塚本公鸣田知和
Owner SANDEN CORP
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