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. 04, 2022
Filed:
Jun. 12, 2019
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Hubert Herrmann, Haimhausen, DE;
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Abstract
A rotor for an electric motor includes an even number n of pole pairs arranged on a rotor body with rotor windings connected in series between two electrical connections to supply or conduct away current through the rotor windings. The series circuit has a first section including n/2 rotor windings arranged first in the series circuit, and a second section including n/2 rotor windings and arranged upstream of the second electrical connection. During application of a direct-current voltage between the two connections in each of the rotor windings of the first section, the radial component of the direct-current flow in the series circuit extends through the entire respective rotor winding, from an outer side to an inner side of the rotor winding, and in each of the rotor windings of the second section, in reverse, from an outer side to an inner side of the rotor winding.