Motor-compressor

Abstract

The output terminal 137 of the circuit board 133 constituting the motor driving circuit board, and the input terminal 124 penetrating the motor housing 121 , are electrically connected to each other in such a manner that the outer protrusion 124 a of the input terminal 124 is directly engaged to the engagement hole 137 a of the output terminal 137 . Thus, the output terminal 137 and the input terminal 124 can be directly connected to each other without lead wires or the like, so that the work of connection between the output terminal 137 and the input terminal 124 can be simplified.

1 . A motor-compressor comprising: 
 an electrical motor for driving a compressor mechanism which sucks and compresses refrigerant;    a motor housing in which said motor is accommodated and fluid flows;    a driving circuit board which is mounted on the outside of said motor housing and on which a motor driving circuit, for driving said motor, is formed;    an output terminal which is mounted on said driving circuit board and outputs driving power for said motor; and    an input terminal, which penetrates said motor housing, for inputting said driving power to said motor while sealing said motor housing against leakage of said fluid,    wherein said output terminal and said input terminal are directly engaged and electrically connected with each other.    
     
     
         2 . The motor-compressor of  claim 1 , wherein: 
 said input terminal has an engagement protrusion protruded to the outside of said motor housing;    said output terminal has an engagement hole corresponding to the shape of said engagement protrusion, and    said engagement protrusion and said engagement hole are engaged with each other so that said output terminal and said input terminal are electrically connected with each other.    
     
     
         3 . The motor-compressor of  claim 2 , wherein said engagement protrusion and said engagement hole are both shaped, substantially, as a pillar.  
     
     
         4 . The motor-compressor of  claim 2 , wherein said engagement protrusion and said engagement hole are both shaped, substantially, as a column.  
     
     
         5 . The motor-compressor of  claim 1 , wherein said driving circuit board has a conductor pattern connected with said output terminal, and said output terminal and said conductor pattern are both formed of resin by insert molding.  
     
     
         6 . The motor-compressor of  claim 5 , further comprising a resin casing for driving circuit board, in which a space for accommodating said driving circuit board is provided, wherein said driving circuit board and said casing for driving circuit board are molded in one piece.  
     
     
         7 . The motor-compressor of  claim 1 , wherein said driving circuit board is of a laminated construction, and an engagement hole is provided in the lower-layer board.  
     
     
         8 . The motor-compressor of  claim 1 , wherein said fluid is sucked refrigerant which will be sucked by said compressor mechanism.