Patent Number: 6,798,106

Title: Vehicle AC generator having vibration-resistant stator

Abstract: A stator winding includes at least two pairs of in-slot portions aligned in a depth direction of each of slots and first and second coil-ends that respectively extend from opposite axial ends of the slots. The first coil-end a includes a plurality of crossover wires, each of which connects one of the in-slot portions disposed in one layer of the one of the slots and another of the in-slot portions disposed in another layer of second one of the slots that is spaced apart from the first one of the slots by a narrower pitch than a pole-pitch between the N and S poles. The second coil-end includes a plurality of crossover wires, each of which connects one of the in-slot portions disposed in one layer of third one of the slots and another of the in-slot portions disposed in another layer of fourth one of the slots that is spaced apart from the third one of the slots by the pole-pitch between the N and S poles. Therefore, the height of the first coil-end can be reduced, so that the rigidity of the coil-end can be increased, thereby increasing vibration resistance.

Inventors: Nakamura; Shigenobu (Anjo, JP), Umeda; Atsushi (Okazaki, JP)

Assignee: Denso Corporation

International Classification: H02K 3/28 (20060101); H02K 19/22 (20060101); H02K 19/16 (20060101); H02K 019/22 ()

Expiration Date: 09/28/2021