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:
May. 14, 2024
Filed:
Mar. 12, 2020
Regal Beloit America, Inc., Beloit, WI (US);
Regal Beloit Australia Pty Ltd, Rowville, AU;
Mark Thiele, Cape Woolamai, AU;
Greg Heins, Rowville, AU;
Subhash Brahmavar, Fort Wayne, IN (US);
Steve Long, Fort Wayne, IN (US);
Lester Benjamin Manz, Paulding, OH (US);
Kerry Shelton, Fort Wayne, IN (US);
Regal Beloit America, Inc., Beloit, WI (US);
Regal Beloit Australia Pty Ltd, Rowville, AU;
Abstract
A permanent magnet rotor core includes a plurality of rotor poles circumferentially-spaced about a central axis and including a first rotor pole and an adjacent second rotor pole that each include an outer wall, and wherein the rotor core includes a rotor diameter. The rotor core also includes a plurality of radial apertures alternately-spaced with the plurality of rotor poles. The rotor core also includes a first protrusion extending from the first rotor pole into a first radial aperture of the plurality of radial apertures positioned between the first rotor pole and the second rotor pole. The rotor core further includes a second protrusion extending from the second rotor pole into the first radial aperture such that a circumferential opening is defined between the first protrusion and the second protrusion. The opening extends a first length of between approximately 0.052% and approximately 0.058% of the rotor diameter.