The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 2025
Filed:
Aug. 04, 2022
Ebm-papst Mulfingen Gmbh & Co. KG, Mulfingen, DE;
Jochen Häfner, Blaufelden, DE;
Werner Müller, Mulfingen-Seidelklingen, DE;
Stephan Nadig, Zweiflingen-Pfahlbach, DE;
Erich Pollok, Niederstten, DE;
Gerhard Sturm, Mulfingen, DE;
Martin Baun, Mulfingen, DE;
ebm-papst Mulfingen GmbH & Co. KG, Mulfingen, DE;
Abstract
An electric motor (), in particular, an external rotor motor, has a stator () with a stator core (), a non-rotatably attached shaft (), that extends in the axial direction (A) of the motor, and a rotor bell (), rotatably arranged relative to the non-rotatable shaft (). The rotor bell () has cooling ribs in an open, spoke-like design rotatably mounted on the shaft () by at least one first stator-side bearing shield (). A cooling device () is arranged between and connects the shaft () and the stator core (). The cooling device () has a plurality of axial flow openings () arranged in the circumferential direction that causes cooling when the motor rotates during operation.