Stator coil, stator provided with the same, and rotating electric machine provided with the same

摘要

Miniaturize coil ends in rotating electrical machines. The stator coil 60 is inserted into a slot 420 of a stator of a rotating electric machine. The stator coil includes a plurality of segment coils 28 connected to each other, and the segment coil 28 has an insulating coating portion covered with an insulating coating. Then, the stator coil 60 is configured so that the slit 900 or the concave portion is provided in the insulating coating portion of the segment coil 28 in the coil end 140. Preferably, the slit 900 or the recess is provided between the conductor skew portion 28D and the conductor end straight portion 28E of the segment coil 28.