Electric compressor with integral inverter

Abstract

An electric compressor provided with an integral inverter, incorporated with a motor and provided in a receiving space surrounded by a compressor housing with a motor drive circuit that includes the inverter. At least some of electric parts including the motor drive circuit are coated at an assembly-completed state with a resin that is charged into the receiving space. The shape of the charged resin is defined in the receiving space by a jig used at the time of resin charging and defining a space to be charged with the resin. In the structure of a resin coating section for such a motor drive circuit, the amount of resin charged is significantly reduced, and the entire compressor is reduced in weight and cost.

1 . An electric compressor with an integral inverter, incorporated with a motor and provided in a receiving space surrounded by a compressor housing with a motor drive circuit that includes said inverter, characterized in that at least some of electric parts including said motor drive circuit are coated at an assembly-completed state with a resin that is charged into said receiving space, and a shape of said charged resin is defined in said receiving space by a jig used at the time of resin charging and defining a space to be charged with said resin. 
   
   
       2 . The electric compressor with an integral inverter according to  claim 1 , wherein said jig defines said space to be charged with said resin for said at least some of electric parts including said motor drive circuit and does not define said space to be charged with said resin for at least a part of said compressor housing which defines said receiving space. 
   
   
       3 . The electric compressor with an integral inverter according to  claim 1 , wherein said jig defines said space to be charged with said resin for said at least some of electric parts including said motor drive circuit and does not define said space to be charged with said resin for at least the other parts. 
   
   
       4 . The electric compressor with an integral inverter according to  claim 1 , wherein said space to be charged with said resin is defined so as to extend between at least some of electric parts. 
   
   
       5 . The electric compressor with an integral inverter according to  claim 1 , wherein said at least some of electric parts including said motor drive circuit are provided in said receiving space so as to enable heat exchange with refrigerant sucked as fluid to be compressed. 
   
   
       6 . The electric compressor with an integral inverter according to  claim 1 , wherein charging of said resin is performed by charging a liquid resin material into said space to be charged with said resin. 
   
   
       7 . The electric compressor with an integral inverter according to  claim 1 , wherein said at least some of electric parts including said motor drive circuit is charged with said resin under a residual heat condition after heating. 
   
   
       8 . The electric compressor with an integral inverter according to  claim 1 , wherein said jig itself is formed so as to be heatable. 
   
   
       9 . The electric compressor with an integral inverter according to  claim 1 , wherein said resin material is a thermosetting resin. 
   
   
       10 . The electric compressor with an integral inverter according to  claim 1 , wherein a thickness of said charged resin is 1 mm or more. 
   
   
       11 . The electric compressor with an integral inverter according to  claim 1 , wherein said compressor is a compressor used in an air conditioning system for vehicles.