Electric Motor-Driven Compressor

Abstract

An electric motor-driven compressor having a connector structure comprising a terminal connecting portion and a casing, the terminal connecting portion being provided with a hole for inserting an external terminal for power supply to an electric motor for driving a compression mechanism incorporated in a compressor housing, the casing covering the terminal connecting portion. In the electric motor-driven compressor, a collar is provided between a core wire and a covering material of a cable, at least a position corresponding to a sealing material provided at the cable inserting portion of the casing. The clearance between the cable and the sealing material can be prevented from increasing even when the cable is increased in temperature during power supply or when the cable is arranged in a bent fashion, and good sealing performance in the casing of the connector can be achieved, thereby enhancing reliability and durability of the electric motor-driven compressor.

1 . An electric motor-driven compressor having a connector structure comprising a cable for power supply in which a core wire is covered with a covering material, a terminal connecting portion to which said cable is connected and which has a terminal hole, into which an external terminal for power supply to an electric motor for driving a compression mechanism incorporated in a compressor housing is inserted, and which is structured to be attached to and detached from said external terminal, and a casing covering said terminal connecting portion, characterized in that a collar is provided between said core wire and said covering material of said cable at least a position corresponding to a position of a sealing material provided at a cable inserting portion of said casing. 
   
   
       2 . The electric motor-driven compressor according to  claim 1 , wherein a flange radially projecting is provided to said collar at an end portion of said collar. 
   
   
       3 . The electric motor-driven compressor according to  claim 2 , wherein said flange is fixed to said casing. 
   
   
       4 . The electric motor-driven compressor according to  claim 1 , wherein said collar is made from a metal or a resin.