Electric compressor

Abstract

An electric compressor includes a compression part, a motor that drives the compression part, a cylindrical housing that accommodates therein the compression part and the motor, a supporting member, and a first vibration damper. The supporting member supports the housing and is configured to be fixed to a target to which the compressor is attached. The first vibration damper is disposed between the housing and the supporting member so as to keep the housing free from contact with the supporting member and the target. The first vibration damper has therein a hollow enclosed space.

What is claimed is: 
     
         1 . An electric compressor comprising:
 a compression part;   a motor that drives the compression part;   a cylindrical housing that accommodates therein the compression part and the motor;   a supporting member that supports the housing and is configured to be fixed to a target to which the compressor is attached;   a first vibration damper that is disposed between the housing and the supporting member; wherein   the first vibration damper keeps the housing free from contact with the supporting member and the target, and   the first vibration damper has therein a hollow enclosed space.   
     
     
         2 . The electric compressor according to  claim 1 , wherein the first vibration damper has an annular shape that extends around a periphery of the housing. 
     
     
         3 . The electric compressor according to  claim 1 , wherein the supporting member has an annular shape that extends around a periphery the housing. 
     
     
         4 . The electric compressor according to  claim 3 , wherein an inner periphery of the supporting member is configured such that an outer periphery of the first vibration damper is fixed thereon. 
     
     
         5 . The electric compressor according to  claim 1 , wherein
 the electric compressor comprises a plurality of the supporting members, and   each of the supporting members is non-annular shaped and disposed around the housing.   
     
     
         6 . The electric compressor according to  claim 5 , wherein inner peripheries of the supporting members are configured such that the outer periphery of the first vibration damper is fixed thereon. 
     
     
         7 . The electric compressor according to  claim 2 , wherein
 the first vibration damper is at least at a part thereof in contact with both of the housing and the target, and   the first vibration damper keeps the housing free from contact with the target.   
     
     
         8 . The electric compressor according to  claim 1 , wherein
 the first vibration damper is disposed between the housing and the target, and   the first vibration damper keeps the housing free from contact with the target.   
     
     
         9 . The electric compressor according to  claim 1 , wherein
 the first vibration damper is filled with a gas or a liquid, and   the first vibration damper is configured such that the gas or the liquid is injectable thereinto.   
     
     
         10 . The electric compressor according to  claim 9 , wherein the gas is air. 
     
     
         11 . The electric compressor according to  claim 1 , wherein
 a recess is formed in one of the outer periphery of the first vibration damper and the inner periphery of the supporting member,   a projection is formed in the other of the outer periphery of the first vibration damper and the inner periphery of the supporting member, and   the recess and the projection are adapted to be fitted to each other.   
     
     
         12 . The electric compressor according to  claim 11 , wherein
 the electric compressor further comprises an auxiliary vibration damper disposed between the first vibration damper and the supporting member,   the auxiliary vibration damper is contactable with the housing when the first vibration damper is deformed, and   the auxiliary vibration damper keeps the housing free from contact with the supporting member and the target when the first vibration damper is deformed.   
     
     
         13 . The electric compressor according to  claim 1 , wherein
 a groove is provided in an outer periphery of the housing, and   the first vibration damper is fitted in the groove.   
     
     
         14 . An electric compressor comprising:
 a compression part;   a motor that drives the compression part;   a cylindrical housing that accommodates therein the compression part and the motor;   a supporting member that supports the housing and is configured to be fixed to a target to which the compressor is attached; and   a second vibration damper that extends along an outer periphery of the housing and is disposed between the housing and the supporting member, wherein   the second vibration damper keeps the housing free from contact with the supporting member,   when the second vibration damper is taken along a plane that is perpendicular to the extending direction of the second vibration damper, the second vibration damper has a C-shaped cross section with an opening that is opened toward a side that is opposite to the housing in the radial direction of the cross section, and   the supporting member covers the opening in an air-tight and liquid-tight manner to seal a space enclosed by the supporting member and the second vibration damper.