Hohlwelle für einen Rotor eines Elektromotors

Details

Veröffentlichungs-Nr.

EP4145683

Aktenzeichen

EP21195068

Anmeldetag

6. September 2021

Veröffentlichung

22. November 2023

Erteilung

22. November 2023

Rechtsraum

EP

IPC

H02K1/32H02K7/00H02K9/06H02K9/19H02K21/12

Abstract

The invention relates to a rotor of a synchronous electric motor comprising the rotor core and magnets, where an impeller (2A) on the rotor core in combination with a hollow shaft is used for propelling a coolant through a cooling system of the electric motor. In an advantageous embodiment the coolant is introduced directly into the main cavity (7) of the hollow shaft and released out of the shaft through a plurality of channels (1C) in the area of a junction surface between a shaft core (1A) and a supporting body (1B), wherein outlet apertures (3) of the channels (1C) are aligned with intake area of the impeller (2A).

Anmelder

Firma

MAHLE International GmbH

Land

🇩🇪 Deutschland

Fachgebiete