Permanentmagnetrotor und Rotierende Elektrische Permamentmagnetvorrichtung

Details

Veröffentlichungs-Nr.

EP3151386

Aktenzeichen

EP16191377

Anmeldetag

29. September 2016

Veröffentlichung

31. Oktober 2018

Erteilung

31. Oktober 2018

Rechtsraum

EP

IPC

H02K1/27

Abstract

According to an embodiment, a permanent magnet rotating electrical machine (100) has: a rotor shaft (11) which is rotatably supported and extends axially; a rotor core (12) fixed to the rotor shaft (11) and has a laminated plate including steel flat plates laminated axially; permanent magnets (41a, 41b); a stator core (21) disposed on an outer periphery of the rotor core (12) with a gap (25); and armature windings wound around the stator teeth (22) of the rotor core (12). The flux barriers (31a, 31b) are formed in each circumferential angle region so as to extend axially, spread circumferentially toward the rotation axis center in a convex curved shape. A permanent magnet space (13a, 13b) is formed in a circumferential direction center portion of each of the flux barriers (31a, 31b). The permanent magnets (41a, 41b) are disposed in the respective permanent magnet space (13a, 13b) in which demagnetization resistance monotonically decreases from the outside to the inside in a radial direction between permanent magnets (41a, 41b) adjacent to each other radially.

Anmelder

Firma

Kabushiki Kaisha Toshiba

Land

🇯🇵 Japan

Fachgebiete