Rotor

Details

Veröffentlichungs-Nr.

EP4807947

Anmeldetag

23. Februar 2026

Veröffentlichung

16. September 2026

Rechtsraum

EP

IPC

H02K1/276

Abstract

A rotor (20) of a rotary electric machine (1) includes a rotor shaft (21) serving as a rotation axis, an annular rotor core (22) having a first hole (22A) at a center in which the rotor shaft is disposed, and a magnet (MG) disposed in a circumferential direction of the rotor core and provided for each magnetic pole. The rotor core includes a plurality of second holes (22B) provided in the circumferential direction and in which the magnet is disposed, and a plurality of third holes (22C) provided in the circumferential direction and located radially inward with respect to the second holes. The third hole includes an outer sidewall portion (OW), an inner sidewall portion (IW) located radially inward with respect to the outer sidewall portion, and a pair of sidewall portions (SW) provided on both sides of the outer sidewall portion and the inner sidewall portion and connecting the outer sidewall portion and the inner sidewall portion. The inner sidewall portion has a distance changing portion (IW1) whose distance from a rotation center of the rotation axis changes. The inner sidewall portion does not protrude radially inward.

Anmelder

Firma

AISIN CORPORATION

Land

🇯🇵 Japan

Fachgebiete