Patent ID: 8358041
Filing Date: 2013-01-22
Classification: H02K,Y10T

Abstract:
1. An electric motor having a wire connection structure for connecting a plurality of feed cables, which supply a polyphase alternating current from outside, to the electric motor, comprising: a stator including a stator coil; a rotor arranged at an inner side relative to an inner circumferential surface of the stator to be rotatable relative to the stator; a motor housing accommodating therewithin the stator and the rotor, the motor housing formed with a through hole; a cable retaining portion formed on the motor housing for retaining each end portion of the feed cables in a predetermined arrangement; a fixing portion formed on the stator and extending towards the through hole from an inside of the motor housing; a plurality of first terminals connected to the stator coil and arranged on the fixing portion in an orientation different from the predetermined arrangement of the end portions of the feed cables; a plurality of second terminals, each of the second terminals projecting from the end portion of one of the feed cables; a base block made from an insulating material and positioned in the through hole, the base block including a plurality of insertion holes each allowing insertion of a corresponding one of the second terminals; each of the second terminals being positioned in the corresponding insertion hole and being superimposed on a corresponding first terminal after being inserted into the through hole from outside the motor housing; at least one of the second terminals being bent for connecting the end portion of the feed cable and the corresponding first terminal; a plurality of screw bolts threadedly engaged with the fixing portion after being inserted into the corresponding first terminals and the second terminals, each of the screw bolts jointly fastening the corresponding first terminal and the second terminal to the fixing portion so that the first terminal and the second terminal are electrically connected; wherein the screw bolt, which is inserted through the corresponding first terminal and the corresponding second terminal, is threadedly engaged with the fixing portion after the corresponding second terminal is superimposed on the corresponding first terminal to electrically connect the corresponding first and second terminals; and the at least one bent second terminal is guided by the base block along a bent configuration thereof by a predetermined member.