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:
Oct. 30, 2012
Filed:
Aug. 14, 2008
Young-chun Jeung, Cypress, CA (US);
Young-Chun Jeung, Cypress, CA (US);
SNtech Inc., Phoenix, AZ (US);
Abstract
Some embodiments of the present disclosure provide a rotor of an electric brushless motor configured to be light weight and prevent vibrations generated during an operation of the motor to be transferred to the shaft of the rotor. The rotor includes a shaft elongated in a rotational axis, a single body magnet comprising alternately magnetized portions, and a vibration absorption portion interposed between the shaft and single body magnet. The vibration absorption portion absorbs vibrations generated during the operation of the motor and can include an elastic or a non-elastic material. The rotor further includes a non-elastic portion inhibiting the expansion of the vibration absorption portion when the vibration portion is elastic.