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:
Jun. 01, 2021
Filed:
Jan. 09, 2019
Bühler Motor Gmbh, Nuremberg, DE;
Heinz Günther, Oberasbach, DE;
Martin Gundermann, Nuremberg, DE;
Mladen Zec, Nuremberg, DE;
Jochen Bauer, Ergersheim, DE;
Andreas Wall, Nuremberg, DE;
Klaus Weiske, Schwaig, DE;
Armin Suttner-Reimann, Schwabach, DE;
BÜHLER MOTOR GMBH, Nürnberg, DE;
Abstract
A permanent magnet rotor of an electric motor, includes a laminated core having magnet pockets, the laminated core being composed of two partial laminated cores. A plurality of permanent magnets are held in a force-fitting manner in magnet pockets of the laminated core, the magnets extending over both partial laminated cores. Sheet metal tongues, which maintain the force fit of the permanent magnets, are deflected in the first partial laminated core in a first axial direction and in the second partial laminated core in a second axial direction opposite to the first direction, wherein the partial laminated cores consist of stamped metal sheets and the permanent magnets are pressed into the magnet pockets in the stamping direction.