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:
Sep. 19, 2017
Filed:
Feb. 27, 2014
Ebm-papst St. Georgen Gmbh & Co. KG, St. Georgen, DE;
Arno Karwath, Deisslingen, DE;
Bjoern Winter, St. Georgen, DE;
EBM-PAPST ST. GEORGEN GmBH & Co. KG, St. Georgen, DE;
Abstract
An electric motor () has a stator () having a number S of stator poles (); a rotor () having a rotor magnet ('), which rotor magnet (′) has a number R of rotor poles (), R being equal to S, and the rotor () or the stator (), or both, exhibiting a magnetic asymmetry. The asymmetry facilitates startup. The electric motor has a single-phase winding arrangement () with first (), second () and third () terminals. Current can be made to flow, selectively, from either the first or the second terminal, through certain coils, to the third terminal (). There is an output stage (), preferably an H-bridge. The W total coils comprise a plurality of subgroups (TG, TG) of coils. A method for current flow through an electric motor utilizes these sub-groups (TG, TG) for current flow.