The split stator core, laying out in production mannered null annular condition of the split

摘要

PROBLEM TO BE SOLVED: To improve the characteristics of a motor by enhancing the circularity of inside diameter of a stator, without complicating the shape of a bonding end face of a back yoke portion, by devising the shape of each of split stators in circularly disposing split stators and fastening them to form a ring-like stator.;SOLUTION: The split stator, disposed circularly to form a stator has a back yoke portion and a teeth portion protruding from the back yoke portion toward the inside of the stator, wherein an end face in the radial direction of both the faces of the stator circumferential direction of the back yoke portion is used as a bonding end face to a split stator core adjacent in the circumferential direction, and an angle α formed by the bonding end face of both the ends in the circumferential direction is set smaller than the angle β, obtained by dividing 360° by the number of split stators constituting the stator.;COPYRIGHT: (C)2009,JPO&INPIT