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:
Jul. 21, 1998
Filed:
Aug. 06, 1996
Weon Ki Hong, Kyunggi-Do, KR;
Samsung Electro-Mechanics Co., Ltd., Suwon, KR;
Abstract
The invention relates to a structure of a spindle motor. The spindle motor comprises a housing assembly having a cylindrical hub and a stator secured onto a circumferential outer surface of the cylindrical hub, a spindle hub having a rotor magnet secured onto a circumferential inner surface thereof, a rotating shaft passing through the spindle hub and extending into space defined in the cylindrical hub, a plurality of first permanent magnets fitted onto a circumferential outer surface of the rotating shaft and having opposed magnetic polarities in upper and lower direction, and a plurality of second permanent magnets fitted onto a circumferential inner surface of the cylindrical hub and having opposed magnetic polarities in upper and lower direction, whereby the rotating shaft can be rotated without any frictional contact, in a state being floated by magnetic repulsion and attraction induced by the first and second permanent magnets.