ARMATURE CORE, ARMATURE AND ITS MANUFACTURING PROCESS

摘要

PROBLEM TO BE SOLVED: To enhance the space factor of winding. SOLUTION: The armature core 1 includes a plurality of first teeth 11 each having first and second cores 111 and 112, and a plurality of second teeth 12 each having third and fourth cores 121 and 122. The first and third cores 111 and 121 are arranged alternately along the circumferential direction 93 and located at the same position in one direction 92. The second and fourth cores 112 and 122 are provided on the side of one direction 92 for the first and third cores 111 and 121. The first core 111 has a first side face 111a curving convexly on the third core 121 side. The second core 112 has a second side face 112a curving concavely on the fourth core 122 side and projects to at least any one of the outer circumferential side and the inner circumferential side for the first core 111. The third and fourth cores 121 and 122 have the same shape as those of the second and first cores 112 and 111, respectively. COPYRIGHT: (C)2008,JPO&INPIT