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:
Apr. 17, 2007
Filed:
Jul. 29, 2004
Applicant:
Stefan Lukenich, Singen, DE;
Inventor:
Stefan Lukenich, Singen, DE;
Assignee:
ebm-papst St. Georgen GmbH & Co., St. Georgen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 11/00 (2006.01); H02K 3/00 (2006.01); H02K 1/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A compact electric motor has a rotor, and a stator () having a slotted lamination stack () defining slots separated by teeth, the teeth having tooth heads (). Partial windings () are arranged on the teeth. On at least one axial end of said lamination stack, jumper rings () and a neutral ring () are arranged. The neutral ring has a plurality of inwardly extending radial projections () having free ends () adapted for connection to ends () of the partial windings (). Connection of partial windings () in parallel provides a favorable power/size ratio and substantial power output, even with low operating voltage.