| 摘要 |
PROBLEM TO BE SOLVED: To prevent dislocation and falling of an insulating sheet at winding, and to attain secure insulation, and improvement in characteristics and product cost reduction by shortening a coil. SOLUTION: A concentrated winding stator includes an iron core 22 in which a plurality of tooth portions 22b are formed toward a central portion from an annular core 22a, a pair of insulating end plates 23, the insulating sheet 24, and the coil 25 wound around the iron core 22 through the insulating end plates 23 and the insulating sheet 24. The insulating end plates are arranged at both ends of an axial direction of the iron core 22, and include an insulating tooth portion 23b covering an axial end face of the tooth portions 22b of the iron core 22. The insulating sheet is arranged in a slot 22c formed between a plurality of tooth portions 22b of the iron core 22, and in which its axial length is made longer than an axial distance of the pair of insulating end plates 23. It is formed so that at least one end side of an axial direction of the insulating sheet 24 may follow the insulating tooth portion 23b of the insulating end plates 23 fitted to the iron core 22. COPYRIGHT: (C)2009,JPO&INPIT
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