| 摘要 |
PROBLEM TO BE SOLVED: To obtain a low-cost stator core that does not make the output of a rotating electrical machine reduced. SOLUTION: Each of split cores 3 is formed by laminating core sheets 2 each having a yoke portion 5, having arc-shaped outer periphery and a tooth portion 6 protruded from the yoke portion to the inner radius side; the stator core includes a stator core body portion 4, formed by combining these split cores in the circumferential direction into a circular shape and having a groove 9 extending in the circumferential direction in the outer periphery; and an annular body 10 fitted to in the groove. The annular body is formed of a magnetic material having a permeability equal to or larger than those of the core sheets. COPYRIGHT: (C)2011,JPO&INPIT
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