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. 10, 2008
Filed:
Jul. 18, 2005
Sadik Sadiku, Neuberg, DE;
Keith A. Witwer, Fort Wayne, IN (US);
Sadik Sadiku, Neuberg, DE;
Keith A. Witwer, Fort Wayne, IN (US);
Elmotec Statomat Vertriebs GmbH, Karben, DE;
Abstract
The stator for electrical machines has stator slots that are open radially inward, at least some of which contain coils made from round wire and have side walls () of equal length that each extend parallel to their center radial plane. To attain an especially high fill factor, the entrances () of the stator slots have a width, measured transversely to their center radial plane, that is slightly greater than the diameter d of the round wire (). A further condition is that the width of the stator slots, measured between the parallel side walls (), amounts to (1+cos 30°)d, and the radially outer slot wall () forms angles of 60° and 120°, respectively, with each of the two side walls ().