Not less than two regions different in magnetic circuit design are provided in a rotational axis direction of the rotor (30), the regions being different by changing a cross-sectional shape in the rotational axis direction in a cross-section perpendicular to a rotational shaft (10) of the rotor (30) having the permanent magnets (1) and the rotor core (2); the supplemental grooves (5) are provided in axial partial regions of each of the teeth (7) of the stator core (3); and the region in which the supplemental groove (5) is provided is each partial region for each region facing a region same in magnetic circuit design of the rotor (30). This enables to reduce cogging torque generated by variations on the rotor side.
PERMANENT MAGNET TYPE ROTATING ELECTRICAL MACHINE AND ELECTRICAL POWER STEERING DEVICE USING SAME
ELEKTRISCHE PERMANENTMAGNETROTATIONSMASCHINE UND ELEKTRISCHE SERVOLENKVORRICHTUNG DAMIT
MACHINE ÉLECTRIQUE TOURNANTE DU TYPE À AIMANT PERMANENT ET DISPOSITIF DE DIRECTION ASSISTÉE UTILISANT CETTE MACHINE
30.05.2018
Patent
Elektronische Ressource
Englisch
PERMANENT MAGNET TYPE ROTATING ELECTRICAL MACHINE AND ELECTRIC POWER STEERING DEVICE
Europäisches Patentamt | 2022
|PERMANENT MAGNET TYPE ROTATING ELECTRICAL MACHINE AND ELECTRIC POWER STEERING DEVICE
Europäisches Patentamt | 2020
|CONTROL DEVICE OF PERMANENT MAGNET TYPE ROTATING ELECTRICAL MACHINE
Europäisches Patentamt | 2022
|Control device of permanent magnet type rotating electrical machine
Europäisches Patentamt | 2024
|Permanent magnet rotating electrical machine and a motor vehicle using same
Europäisches Patentamt | 2017
|