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. 12, 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 arranged downward of a cover and having an inner cylindrical portion; a stator secured to circumferential outer surface of the inner cylindrical portion of the housing assembly; a spindle hub provided above the housing assembly and having an outer cylindrical portion; a rotor magnet secured to circumferential inner surface of the outer cylindrical portion of the spindle hub; a hydrodynamic bearing formed in the inner cylindrical portion of the housing assembly; a rotating shaft having one end secured to the spindle hub to integrally rotate with the spindle hub and the other end positioned in the hydrodynamic bearing; and restrainer disposed between the cover and the one end of the rotating shaft to restrain axial movement of the rotating shaft to a predetermined extent.