| 摘要 |
PROBLEM TO BE SOLVED: To improve the efficiency of a three-dimensional rotating machine using a split core. SOLUTION: A stator core 21 has a tooth portion 23 having magnet opposite surfaces on one side (side 24b or side 24c) in a radial direction and one side (side 24a or side 24d) in an axial direction, a rod-like yoke part 22 to which windings are wound, and a plurality of split cores 30 arranged annularly. The split core 30 is constituted by soft magnetic metal compacted powder. An end portion 22a of the yoke part 22 of each split core 30 is suitable for a concave part 26 prepared in the tooth portion 23 of an adjacent split core 30. The yoke part 22 is a columnar body, in which at least one part of one side in the axial direction, or one side in the radial direction, or a portion facing both sides, in the end portion 22a, is rounded. COPYRIGHT: (C)2011,JPO&INPIT
|
