公开(公告)号：US20210281153A1

公开(公告)日：2021-09-09

申请号：US17192263

申请日：2021-03-04

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Keiu KANADA ,  Daisuke ICHIGOZAKI ,  Kazuaki HAGA ,  Motoki HIRAOKA ,  Daichi MARUYAMA ,  Hisamitsu TOSHIDA ,  Kyoko NAKAMURA ,  Akira YAMASHITA

IPC: H02K21/02

Abstract: A rotating electrical machine capable of obtaining a higher torque while limiting the amount of permanent magnets used. A magnetic pole of a rotor includes an auxiliary magnet embedded in a rotor core and at least one main magnet arranged on an outer circumferential side than the auxiliary magnet of the rotor. In each magnetic pole, the distance from an end of the main magnet, the end facing the auxiliary magnet, to the auxiliary magnet facing the main magnet is shorter than the length of the main magnet in the radial direction. In a cross-section orthogonal to the rotation axis of the rotating electrical machine, the main magnets of each magnetic pole are arranged so as to be asymmetrical about a virtual line passing the rotation axis and axisymmetrically dividing the auxiliary magnet,

公开(公告)号：US20190267854A1

公开(公告)日：2019-08-29

申请号：US16279294

申请日：2019-02-19

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kensuke KOMORI ,  Hisamitsu TOSHIDA ,  Kazuaki HAGA

IPC: H02K1/14 ,  H02K3/18 ,  H02K3/52

Abstract: Provided is a stator for rotating electrical machine that can avoid the sagging of teeth stacked at the distal ends under the self-weight. A stator core is a laminate of metal foil members stacked in a direction of a rotation axis of the rotating electrical machine. Each tooth has a pair of side walls facing the neighboring teeth in the circumferential direction. The stator includes a pair of insulating reinforcing members so as to become a bridge between the corresponding tooth and a part of the yoke and sandwich the corresponding tooth from both sides in the direction of the rotation axis while exposing the pair of side walls; insulating fixing members, each fixing member fixing the corresponding pair of reinforcing members to the corresponding tooth while wrapping around the pair of reinforcing members and tooth; and coils formed as distributed windings at the teeth fixed with the fixing members.