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. 29, 2018
Filed:
Jun. 04, 2015
Calnetix Technologies Llc, Cerritos, CA (US);
Liping Zheng, Buena Park, CA (US);
Patrick McMullen, Villa Park, CA (US);
Calnetix Technologies, LLC, Cerritos, CA (US);
Abstract
An electric machine has a stator defining an interior cavity and a rotor supported to rotate in the interior cavity of the stator. The rotor has a rotor core with a plurality of permanent magnets arranged around a perimeter of the rotor core. The magnets define a cylindrical, radially facing outer surface. An electrically conductive shield is provided on and covering the cylindrical outer surface of the permanent magnets. A containment sleeve resides around the rotor core, the permanent magnets and the shield and defines an exterior cylindrical surface of the rotor. The containment sleeve is configured to retain the magnets to the rotor core during operation of the electric machine.