Patent ID: 7026739
Filing Date: 2006-04-11
Classification: H02K,Y10T

Abstract:
1. An insulating bobbin mounted on a tooth extending from an annular yoke of a stator with a rectangular wire being around the insulating bobbin, comprising: a tooth insulating portion insulating the tooth of the stator and the rectangular wire; and an extending portion extending from an end portion of the tooth insulating portion along an inner surface of the yoke, wherein a guide groove guiding the rectangular wire diagonally relative to a circumferential direction of the tooth insulating portion from an outside of the extending portion is provided in a side of the extending portion on one of axial sides of the stator, and wherein an inclination angle of the guide groove relative to the circumferential direction of the tooth insulating portion is set equal to or larger than an angle θ which is expressed by the following equation: wherein Ww represents a width of the rectangular wire, and Wt represents a width of the tooth insulating portion.