| 摘要 |
PROBLEM TO BE SOLVED: To keep proper magnetic properties by minimizing the gap between adjacent split stacked cores, and to improve the shape accuracy of a stator by eliminating the dislocation of the connection faces of adjacent back yokes. SOLUTION: This is a stacked core which is constituted by coupling split stacked cores, constituted of stacked iron core sheets into circular form. The split stacked core 10 is equipped with a back yoke part 12 and a tooth part 13 which extends diametrically from the back yoke part 12. Each of core sheets, adjoining in the stacking direction of the back yoke part 12, is provided with an overlapping part 15a or 16a. At a point corresponding to the angle or the R part of the edge of the overlapping part, a section 20 is provided whose tip is made thinner than the board thickness of the core sheet in question. Moreover, the connection edge of the overlapping part 15a or 16a is made rectilinear, and its rectilinear form is not in the radial direction of the core. COPYRIGHT: (C)2006,JPO&NCIPI
|
