| US 7,495,365 B2 | ||
| Stator and resolving method and device thereof | ||
| Yoshihito Asao, Tokyo (Japan); and Kyouhei Yamamoto, Tokyo (Japan) | ||
| Assigned to Mitsubishi Denki Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Aug. 07, 2003, as Appl. No. 10/635,611. | ||
| Claims priority of application No. P2002-295177 (JP), filed on Oct. 08, 2002. | ||
| Prior Publication US 2004/0027027 A1, Feb. 12, 2004 | ||
| Int. Cl. H02K 1/00 (2006.01) | ||
| U.S. Cl. 310—216 | 1 Claim |
| 1. A stator comprising:
a cylindrical iron core including a plurality of slots provided around an inner circumferential face of the cylindrical iron
core, a plurality of concave portions provided around an outer circumferential face of the cylindrical iron core, and a plurality
of notch portions provided in an inner wall surface of some, but not all, of the slots; and
a coil disposed in the slots,
wherein each of the notch portions comprises a linear slit extending partially through the cylindrical iron core in a radial
direction so that the cylindrical iron core has a lower radial crushing strength at the notch portion than at other portions
of the cylindrical iron core,
wherein the cylindrical iron core is formed of a helically wound band plate which includes the linear slits which are abutted
and aligned, and
wherein the linear slits in adjacent layers of the cylindrical iron core are aligned.
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