| 摘要 |
PROBLEM TO BE SOLVED: To neatly wind a magnet wire in a slot with improved neatness of wire arrangement to enhance the space factor of a stator coil, which is a concentrated winding coil formed by winding a magnet wire directly on the pole tooth of a stator core with an insulator between the wire and the tooth, by winding the magnet wire on the pole tooth of the stator core through the slot from the outside of the slot, if the needle diameter is larger than the width of a slot opening. SOLUTION: The structure of this stator core has a stator core 11 comprising a circular core part and a plurality of pole teeth 27 integrally formed on the circular core part and made to protrude from the inner or outer circumference of the circular core part to face a rotor 4. Insulators 12a and 12a converting the stator core are provided and the magnet wires are wound on winding core parts of the pole teeth with the insulators between the teeth and the wires to form soils 18. The insulators 12a and 12b of the winding core parts of the pole teeth are inclined so as to have heights on a flange side higher than the heights on a base side 40. Magnet wire guide parts 40, which further protrude toward the rotor side from the rotor side end surface of the pole tooth, is provided on the top end of the higher side of the insulator.
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