| 摘要 |
PROBLEM TO BE SOLVED: To enhance motor characteristics by enhancing circularity of the inside diameter of a stator when a ringlike stator is formed by arranging split stator cores annularly and then tightening them. SOLUTION: In the stator of a motor with split stator cores arranged therein annularly, each split core has a back yoke portion and a teeth portion projecting inward of the stator from the back yoke portion wherein the back york portions of adjoining split stator cores are bonded each other at a bonding end face, i.e. the end face in the circumferential direction of stator at the back york portion of each split stator core. The back york portions of adjoining split stator cores are bonded each other, the back york portion of at least one set of split stator cores has a trapezoidal shape in the axial direction of motor, first split core and second split core where the opposing short side and long side of a trapezoid at the back yoke portion are reversed are arranged alternately, and the sides of the adjoining trapezoidal split cores inclining reversely are bonded each other. COPYRIGHT: (C)2008,JPO&INPIT
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