| 摘要 |
PROBLEM TO BE SOLVED: To enhance the space factor of a stator coil in a slot of a stator and to facilitate winding of the stator coil in the slot. SOLUTION: The core comprises an annular outer core, and an inner core where a plurality of slots for winding the stator coil periodically open to the outer circumferential side, and the slot is formed to have the substantially same width from the inner circumferential side to the end of outer circumferential opening so that the stator coil is arranged in line. Consequently, the space factor of the stator coil in the slot can be enhanced. Furthermore, since the outer circumferential opening of each slot can be spaced apart in the circumferential direction, the stator coil can be prevented from being inserted into an adjacent slot accidentally in winding and the stator coil can be wound easily in the slot. COPYRIGHT: (C)2008,JPO&INPIT
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