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:
Aug. 23, 2022
Filed:
Feb. 09, 2018
Ebm-papst St. Georgen Gmbh & Co. KG, St. Georgen, DE;
Arnold Schulde, VS-Schwenningen, DE;
Juergen Herr, St. Georgen, DE;
Johannes Fehrenbach, Unterkirnach, DE;
Markus Flaig, Hardt, DE;
Christoph Mayer, St. Georgen, DE;
Serkan Poyraz, VS-Villingen, DE;
Bozidar Radjenovic, St. Georgen, DE;
ebm-papst St. Georgen GmbH & Co. KG, St. Georgen, DE;
Abstract
An internal rotor for an electric motor has a laminated rotor core with a multiplicity of rotor plates, and multiple pockets in each of which pocket a rotor magnet is at least partially arranged. The rotor plates have first recesses for forming the pockets and at least a first rotor plate which has at least a second recess associated with a first recess. A sprung web-shaped clamping element is formed between the second recess and the associated first recess, and tensioned toward the second recess by the associated rotor magnet to apply a force to the associated rotor magnet toward the first recess in order to hold the associated rotor magnet in the pocket. A rotor plate holds a rotor magnet in a pocket of a laminated rotor core.