To provide an electric motor, a power device for a vehicle, a power generator, a vehicle wheel bearing with a power generator, and a manufacturing method of the electric motor, where a fractional slot structure is provided, reduction in manufacturing man-hours can be achieved, and a coil wire connection space can be reduced.SOLUTION: An electric motor 1 comprises: a stator 2 that has a stator core 4 and a stator coil 5 including a plurality of coils 5a that are wound on each tooth 4a; and a rotor 3 that is positioned facing the stator 2 in a radial direction. In this electric motor 1, when N is the number of pairs of poles of the rotor 3 and P is the number of teeth 4a per one phase in the stator 2, P/3N is not an integer. The stator core 4 is an assembled structure where at least a plurality of tooth components 6 that are divided at each tooth are assembled in a circular ring shape. Among each of the coils 5a, coils 5a of the same phase form a serial circuit, and among the coils of the same phase, coils 5a that are neighboring in the circumferential direction comprise one strand and are structured with opposite polarities with regard to one another.SELECTED DRAWING: Figure 1
【課題】分数溝の構成を備えると共に、製造工数の削減を図ることができ、またコイルの結線スペースを低減することができる電動機、車両用動力装置、発電機、発電機付車輪用軸受および電動機の製造方法を提供する。【解決手段】電動機1は、ステータコア4および各ティース4aに巻回された複数のコイル5aを含むステータコイル5を有するステータ2と、ステータ2に対し半径方向に対向して位置するロータ3とを備える。電動機1は、ロータ3の極対数をNとし、ステータ2における一相あたりのティース4aの数をPとしたとき、P/3Nが整数でない電動機である。ステータコア4は、少なくともティース毎に分割された複数のティース部品6が円環状に組み立てられた組立構造であり、各コイル5aのうち同相のコイル5aが直列回路を成し、前記同相のコイルのうちの円周方向に隣り合うコイル5aが1本の素線から成り互いに逆向きの極性に構成されている。【選択図】図1
ELECTRIC MOTOR, POWER DEVICE FOR VEHICLE, POWER GENERATOR, VEHICLE WHEEL BEARING WITH POWER GENERATOR, AND MANUFACTURING METHOD OF ELECTRIC MOTOR
電動機、車両用動力装置、発電機、発電機付車輪用軸受および電動機の製造方法
2021-02-15
Patent
Electronic Resource
Japanese
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