ARMATURE CORE AND ARMATURE

摘要

PROBLEM TO BE SOLVED: To improve an occupation rate of winding. SOLUTION: An armature core 1a is provided with a plurality of first magnetic substances 11 and a plurality of second magnetic substances 12. The first magnetic substances 11 are circularly arranged along a circumferential direction 93 at a periphery of a central axis 91. The second magnetic substances 12 are disposed between the adjacent first magnetic substances 11 in the circumferential direction 93. Each first magnetic substance 11 has first and second sides 111 and 112 in a second magnetic substance 12 side adjacent to itself from the same direction as the circumferential direction 93 or an opposite direction to it. Outer peripheral sides of the first and second sides 111 and 112 bend convexly. Each second magnetic substance 12 has third and fourth sides 121 and 122 in a first magnetic substance 11 side adjacent to itself from the same direction as the circumferential direction 93 or the opposite direction to it. Outer peripheral sides of the third and fourth sides 121 and 122 bend concavely. COPYRIGHT: (C)2008,JPO&INPIT