| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor miniaturized by enhancing winding density in a slot and by improving efficiency. SOLUTION: The motor may be formed such that: a stator is constituted by a laminated core obtained by laminating a plurality of thin iron plates; the slot wound with a coil is provided at the stator; a shape of a slot bottom part is constituted by a curved shape having the plurality of radiuses of curvature; the shape of the slot bottom is particularly excellent when constituted by the curved shape having three or more radiuses of curvature; and an optimal shape of the slot bottom part is constituted by the curved shape having three radiuses of curvature. COPYRIGHT: (C)2009,JPO&INPIT
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