Toyota Jidosha Kabushiki Kaisha

Kabushiki Kaisha Toyota Jidoshokki

Kenji Endo

Eiji Yamada

Takaji Umeno

Kazutaka Tatematsu

Hideo Nakai

Kazuyuki Yamaguchi

Norimoto Minoshima

Tatsuya Uematsu

Toshihiko Yoshida

Yoshio Kato

Kosuke Aiki

In a rotating electrical machine, when a stator winding is wound in concentrated winding, an improvement in performance is achieved by reducing a magnetomotive force harmonic without reducing a fundamental wave magnetic flux generated by a stator. A rotating electrical machine () includes a rotor (), and two stators () opposed with the rotor () being interposed therebetween either on both sides of the rotor () in the axial direction or on both sides of the rotor () in the radial direction. Stator windings () provided in a plurality of portions in the circumferential direction of each stator () are wound in concentrated winding. The directions of magnetic fluxes generated by stator windings () having the same phase in the stators () are in mutually opposite directions with respect to either the axial direction or the radial direction. The stator windings () having the same phase in the stators () are arranged to be shifted from each other by 180 degrees in electrical angle in the circumferential direction.

Rotating electrical machine

The present invention provides a stator coiled in a spiral, capable of mechanically inserting a wound coil in the slot of a stator core. In a stator in which coils are overlapped in a spiral when viewed from the end surface of the stator core after each of one sides of a plurality of coils wound in advance is inserted in the slot of the stator core and each of the other sides of the plurality of coils is inserted in a different slot, by repeating the inserting operation twice or more, the loop of the coils overlapped in a spiral are piled in two layers or more in the radius direction of the stator core and the total coil sectional area inserted in the slots of the stator core is larger than a prescribed value based on the inside radius of the stator core.

Stator

Growing community of inventors

Kariya, Japan

Kenji Endo