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:
Dec. 23, 2008
Filed:
Feb. 08, 2008
Dan M. Ionel, Fox Point, WI (US);
Stephen J. Dellinger, Houston, OH (US);
Robert J. Heideman, Kewaskum, WI (US);
Alan E. Lesak, Franklin, WI (US);
Dan M. Ionel, Fox Point, WI (US);
Stephen J. Dellinger, Houston, OH (US);
Robert J. Heideman, Kewaskum, WI (US);
Alan E. Lesak, Franklin, WI (US);
A. O. Smith Corporation, Milwaukee, WI (US);
Abstract
A stator for a multi-phase electric machine having a plurality of core segments interconnected with one another and a plurality of coils. At least one core segment includes a plurality of teeth and a back portion that at least partially interconnects the teeth. The back portion of each segment has a first arrangement in which the teeth of that segment are a first distance from one another and a second arrangement in which the teeth of that segment are a second distance from one another, the second distance being smaller than the first distance. Each coil surrounds at least a portion of one tooth, wherein all coils surrounding teeth of a single core segment are interconnected to at least partially define one phase winding. Each of the plurality of core segments includes a center tooth having a first profile, a first end tooth having a second tooth profile, and a second end tooth having a third tooth profile. The first tooth profile is different than the second tooth profile and the third tooth profile.