Terminal device for electric compressor

Abstract

Provided is a terminal device for an electric compressor including: a partition wall arranged between a container part for a compression mechanism drive motor present with a lubricant-containing fluid to be compressed and a circuit part for supplying power to the motor; and a power supply terminal member hermetically extending through the partition wall so as to supply power to the motor. An electric communication portion of the terminal member extending between the two parts is covered with insulating varnish. Even when polyalkylene glycol-based oil is used as the lubricant-containing fluid to be compressed, it is possible to realize an electric compressor terminal device with a simple structure at a low cost which can exhibit a sufficiently high insulation performance.

1 . A terminal device for an electric compressor having a partition wall disposed between a container part for a compression mechanism drive motor present with a lubricant-containing fluid to be compressed and a power supply circuit part for supplying power to said motor for isolating said both parts from each other, and a power supply terminal member hermetically extending through said partition wall for supplying power to said motor, characterized in that an electric communication portion of said terminal member extending between said both parts is covered with an insulating varnish. 
     
     
         2 . The terminal device for an electric compressor according to  claim 1 , wherein said terminal member is a bolt-like member capable of being fixed at a side of said power supply circuit part. 
     
     
         3 . The terminal device for an electric compressor according to  claim 1 , wherein an end of a lead wire for supplying power to said motor is connected directly to an end of said terminal member at a side of said motor container part. 
     
     
         4 . The terminal device for an electric compressor according to  claim 1 , wherein said insulating varnish is an electro-deposition varnish. 
     
     
         5 . The terminal device for an electric compressor according to  claim 1 , wherein a polyalkylene glycol-based oil is used as said lubricant. 
     
     
         6 . The terminal device for an electric compressor according to  claim 1 , wherein said partition wall is formed by a compressor housing. 
     
     
         7 . The terminal device for an electric compressor according to  claim 1 , wherein said electric compressor is a compressor used in an air conditioning system for vehicles.