| 摘要 |
PROBLEM TO BE SOLVED: To reduce a leakage magnetic flux on a junction end surface by improving the contact structure of the junction end surface of a back yoke of each of divided stators cores to be adjacently disposed. SOLUTION: An end surface of a stator circumferential direction of a back yoke of each of divided stator cores is used as a junction surface, and the back yokes of the adjacent stator cores are joined to each other. The junction end surfaces of both ends of the back yokes of each of the stator cores is formed into a stepped shape having a first surface extending inward from an external circumferential end, a second surface extending from the inner circumferential side end of the first surface to the stator circumferential direction, and a third surface extending from the tip of the second surface to the inner circumferential end. The first surfaces and the second surfaces are joined to each other on the adjacent junction end surface. COPYRIGHT: (C)2008,JPO&INPIT
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