Rotor eines Elektromotors und Kompressors

Details

Veröffentlichungs-Nr.

EP3337014

Aktenzeichen

EP17208207

Anmeldetag

18. Dezember 2017

Veröffentlichung

27. Juni 2018

Rechtsraum

EP

IPC

H02K1/27

Abstract

The present invention provides a rotor of an electric motor capable of providing a plurality of permanent magnets of the same shape with a small gap. A rotor of an electric motor of the present invention includes a shaft, a rotor core (10), and a plurality of permanent magnets. The rotor core has a plurality of slot groups (S) arranged in a circumferential direction. Each slot group (S) has a plurality of curved slots (50, 60) curved in a convex circular arc shape toward an inner side in the radial direction of the shaft. Each curved slot has an internal inner surface and an external inner surface in a radial direction. In any of the curved slots, the internal inner surface and the external inner surface have a circular arc shape having the same center. A separation distance between the internal inner surface and the external inner surface in each curved slot, and curvatures of the internal inner surface and the external inner surface are the same as those in any other curved slot. The permanent magnets are disposed in each curved slot and have a circular arc shape of the same size curved along the internal inner surface and the external inner surface of each curved slot.

Anmelder

Firma

MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.

Land

🇯🇵 Japan

Fachgebiete