Orientierungsmagnetisierungsvorrichtung und Magneteingebetteter Rotor

Details

Veröffentlichungs-Nr.

EP3223409

Aktenzeichen

EP17161903

Anmeldetag

20. März 2017

Veröffentlichung

12. Dezember 2018

Erteilung

12. Dezember 2018

Rechtsraum

EP

IPC

H02K15/03H02K1/27

Abstract

A magnet-embedded rotor that increases the torque of a motor and reduces the torque variation in the motor and an orientation magnetization device for the rotor are provided. An orientation magnetization device (60) includes plural orientation magnetization yokes (62) and plural orientation magnetization magnets (61), and molds field magnets while a rotor core (40) is disposed in a magnetic circuit that is formed by assembling the orientation magnetization yokes (62) and the orientation magnetization magnets (61) into an annular shape. When the rotor core (40) is disposed in the magnetic circuit such that an outer peripheral surface of the rotor core (40) faces an inner peripheral surface of the orientation magnetization device (60), protruding portions (62a) are disposed at portions of the respective orientation magnetization yokes (62) facing the rotor core (40). Auxiliary magnets (63) are disposed in gaps between the respective orientation magnetization magnets (61) and the rotor core (40), on opposite sides of each protruding portion (62a) in a circumferential direction of the orientation magnetization device (60). Each protruding portion (62a) and each auxiliary magnet (63) extend in an axial direction of the orientation magnetization device (60), and are skewed with respect to the axial direction of the orientation magnetization device (60).

Anmelder

Firma

JTEKT CORPORATION

Land

🇯🇵 Japan

Fachgebiete