| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated fixed core which is less apt to be affected by residual compression thermal stresses, even if split-laminated cores are welded to each other and which is capable of suppressing axial positional displacement, while preventing a positional displacement in the radial direction of the laminated fixed core, in the laminated fixed core constituted by annularly combining a plurality of the split-laminated cores. SOLUTION: In a plurality of iron core pieces each provided with a yoke part and a tooth part having a protruding part and a recessed part are stacked, by engaging the protruding parts and the recessed parts with each other to structure the split laminated cores, a plurality of these split-laminated cores are combined annularly to form the laminated fixed core 1, and in this laminated fixed core, at least one piece of the protruding part of a plurality of iron core pieces constituting each split-laminated core is engaged with the recessed part of the yoke part of the iron core piece of an adjacent split-laminated core. COPYRIGHT: (C)2010,JPO&INPIT
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