Motor-Driven Compressor

Abstract

An energization bolt ( 102 ), which includes an input portion ( 102 a ) to be connected to a motor ( 40 ), an intermediate portion ( 102 b ) contiguous to the input portion and positioned in an insertion hole ( 23 d ) formed in a housing ( 20 ), and an output portion ( 102 c ) contiguous to the intermediate portion and to be connected to a drive circuit ( 98 ), and energizes between the drive circuit and the motor, and a seal member ( 100 ), which surrounds the intermediate portion, is sandwiched and supported by the input portion side and the output portion side, and is fastened to the housing, are included.

1 . A motor-driven compressor comprising:
 a housing which is a sealed container;   a machine chamber formed in the housing, and provided with a motor whose rotary shaft rotatably supported is driven by power supply from an external drive circuit;   a compressing unit which is accommodated in the housing, and is driven by the rotary shaft to perform a series of processes of suction, compression and discharge of a refrigerant;   an energization bolt which includes an input portion to be connected to the motor, an intermediate portion contiguous to the input portion and positioned in an insertion hole formed in the housing, and an output portion contiguous to the intermediate portion and to be connected to the drive circuit, and energizes between the drive circuit and the motor; and   a seal member which surrounds the intermediate portion, is sandwiched and supported by the input portion side and the output portion side, and is fastened to the housing.   
   
   
       2 . The motor-driven compressor according to  claim 1 , wherein the seal member includes an inner block which abuts on an inner end face of the housing, extends towards inside the housing and has an insulation property, and an outer block which abuts on an outer end face of the housing, extends towards outside the housing and has an insulation property, each of the blocks having a through hole formed therein to permit insertion of the energization bolt. 
   
   
       3 . The motor-driven compressor according to  claim 2 , wherein the seal member further includes an intermediate block with an insulation property, which is surrounded by the inner block and the outer block, is positioned between the insertion hole and the intermediate portion, and has a through hole formed therein to permit insertion of the energization bolt. 
   
   
       4 . The motor-driven compressor according to  claim 2 ,
 wherein an elastic member which seals the through hole and inside the housing is disposed between the through hole of the inner block, and the intermediate portion.   
   
   
       5 . The motor-driven compressor according to  claim 2 , wherein an elastic member which seals the through hole and inside the housing is disposed between the inner block and the inner end face of the housing. 
   
   
       6 . The motor-driven compressor according to  claim 1 , wherein one or a plurality of energization bolts are provided for each phase of the motor, and in case of the plurality of energization bolts in total, the individual energization bolts are disposed adjacent to one another.