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:
Dec. 15, 2009
Filed:
Feb. 25, 2008
Chien-sheng Liu, Tainan County, TW;
Po-heng Lin, Hualien County, TW;
Shun-sheng KE, Kaohsiung, TW;
Yu-hsiu Chang, Changhua County, TW;
Ji-bin Horng, Tainan, TW;
Chien-Sheng Liu, Tainan County, TW;
Po-Heng Lin, Hualien County, TW;
Shun-Sheng Ke, Kaohsiung, TW;
Yu-Hsiu Chang, Changhua County, TW;
Ji-Bin Horng, Tainan, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A voice coil motor. A guide bar connects to a fixed base. A coil connects to the fixed base and includes a first winding portion and a second winding portion. A current direction in the first winding portion is opposite that in the second winding portion. A support base movably fits on the guide bar. A magnetic member connects to the support base and includes a first magnetic pole and a second magnetic pole. A magnetization direction of the magnetic member parallels a moving direction of the support base and magnetic member and is perpendicular to a central axis of the coil. The first and second magnetic poles respectively oppose the first and second winding portions of the coil. The first and second magnetic poles respectively interact with the first and second winding portions to generate a first force and a second force, moving the support base and magnetic member.