Patent ID: 8314528
Filing Date: 2012-11-20
Classification: H02K

Abstract:
1. An electric motor comprising: a stator portion including an annular armature; a rotor portion arranged to be inserted inside the armature; and a bearing mechanism arranged to support the rotor portion such that the rotor portion is rotatable about a central axis of the armature with respect to the stator portion; wherein the armature includes: with respect to at least one of the teeth, a winding start portion and a winding end portion of the lead wire are arranged to intersect with each other in a radial direction centered on the central axis to define an intersection portion; the insulator includes a wall portion arranged to project in a direction substantially parallel to the central axis, and extending substantially in a circumferential direction centered on the central axis so as to be in contact with a radially outer end of the coil; the intersection portion and the wall portion are arranged to overlap with each other in the radial direction, while the wiring member is arranged in contact with an outside of the wall portion; and the wall portion includes a lead wire escape portion spaced radially outward from the coil and arranged at a position where the wall portion and the intersection portion overlap with each other in the radial direction.