Motor-driven compressor

Abstract

A motor-driven compressor includes an inner housing member that accommodates a compression mechanism and a motor mechanism in a sealed state. The motor-driven compressor also includes an outer housing member that accommodates the inner housing member and has attachment portions, which are fixed to a target through bolts. The inner housing member has a suction port for drawing refrigerant into the compression mechanism and a discharge port for discharging the refrigerant from the compression mechanism. A suction member and a discharge member, which are connected to the suction port and the discharge port, respectively, are fixed to the inner housing member. The outer housing member is formed of vibration-absorbing and heat-insulating material. The outer housing member is combined with the inner housing member such that the outer housing member accommodates the inner housing member and is held in a non-contact state with respect to the suction member and the discharge member.

1 . A motor-driven compressor comprising:
 a compression mechanism for compressing refrigerant;   a motor mechanism for driving the compression mechanism;   an inner housing member for accommodating the compression mechanism and the motor mechanism in a sealed state; and   an outer housing member for accommodating the inner housing member, the outer housing member having an attachment portion fixed, by a fastening means, to a target to which the motor-driven compressor is attached, wherein   the inner housing member has a suction port for drawing the refrigerant into the compression mechanism and a discharge port for discharging the refrigerant from the compression mechanism,   external pipes respectively connected to the suction port and the discharge port are fixed to the inner housing member,   the outer housing member is formed of a vibration-absorbing and heat-insulating material, and   the outer housing member is combined with such that the outer housing member accommodates the inner housing member and is held in a non-contact state with respect to each of the external pipes.   
     
     
         2 . The motor-driven compressor according to  claim 1 , wherein
 the attachment portion is configured by a first attachment portion and a second attachment portion, and   by passing the fastening means through the first attachment portion, the second attachment portion, and the target, the outer housing member accommodates the inner housing member and is fixed to the target.   
     
     
         3 . The motor-driven compressor according to  claim 2 , wherein the outer housing member is configured by a first housing section having the first attachment portion and a second housing section having the second attachment portion. 
     
     
         4 . The motor-driven compressor according to  claim 1 , wherein an intermediate member having a vibration absorbing property and/or a heat insulating property is arranged between the inner housing member and the outer housing member. 
     
     
         5 . The motor-driven compressor according to  claim 1 , wherein the outer housing member has a tubular shape. 
     
     
         6 . The motor-driven compressor according to  claim 1 , wherein the outer housing member has a container-like shape. 
     
     
         7 . The motor-driven compressor according to  claim 1 , wherein the outer housing member is formed of plastic or fiber-reinforced plastic. 
     
     
         8 . The motor-driven compressor according to  claim 7 , wherein the attachment portion has a metal reinforcement portion.