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:
Sep. 19, 2006
Filed:
Feb. 14, 2005
Ming-chin Tsai, Kaohsiung, TW;
Chuen-fuu Wu, Kaohsiung, TW;
Liang-yi Hsu, Kaohsiung, TW;
Mi-ching Tsai, Kaohsiung, TW;
Ming-Chin Tsai, Kaohsiung, TW;
Chuen-Fuu Wu, Kaohsiung, TW;
Liang-Yi Hsu, Kaohsiung, TW;
Mi-Ching Tsai, Kaohsiung, TW;
Metal Industries Research and Development Centre, Kaohsiung, TW;
Abstract
The present invention relates to a low cogging and easy-to-downsize spindle motor structure. The motor is an axial magnetic flux spindle motor comprising a stator assembly and a rotor assembly. The stator assembly comprises a deck for seating the rotor assembly and at least one bearing placed on the housing of said stator and between the stator and the rotor. The outer periphery part of the bearings is the stationary part; with the inner part of said bearings being the rotating part. A cylindrical shaft is located in the center of the rotor. When the thin windings of stator are excited with current, a rotating magnetic field is created, forcing said rotor into rotation, and as a consequence, bringing the spindle into rotation that generates motor output needed to drive loads.