Closed type fluid machine

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...

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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.

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