Patent ID: 8138643

Claim:
A motor-driven compressor comprising: a metal housing; a compression unit for compressing refrigerant housed in the housing; and an electric motor for driving the compression unit housed in the housing, wherein the electric motor includes a cylindrical stator that is formed with a plurality of slots separated by teeth, wherein the cylindrical stator has polyphase coils that are formed by winding a plurality of conductive wires in the slots to have polyphase, a wire bundle that is formed by drawing out one end of each conductive wire from the polyphase coils and binding the ends of the conductive wires together, and an insulating tube covering the wire bundle, wherein each conductive wire includes a core wire and an insulator that covers the core wire, wherein the wire bundle has a drawing portion that draws out the conductive wires from the polyphase coils, a connecting portion where the core wires of the conductive wires are connected at the ends of the conductive wires together and an elongated portion that is elongated between the drawing portion and the connecting portion for increasing creepage distance between the connecting portion and the housing to increase insulation resistance, wherein the connecting portion of the wire bundle provides a neutral point of the electric motor, wherein the elongated portion and the connecting portion of the wire bundle are covered with the insulating tube.