发明申请
- 专利标题： VOICE COIL MOTORS AND PRE-COMPRESSION GENERATION DEVICES THEREOF
- 专利标题（中）： 语音线圈电机及其预压生成装置
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申请号： US11966877申请日： 2007-12-28
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公开(公告)号： US20080284255A1公开(公告)日： 2008-11-20
- 发明人: Chien-Sheng Liu , Po-Heng Lin , Yung-Hsing Wang , Shun-Sheng Ke , Meng-Che Tsai , Yu-Hsiu Chang
- 申请人： Chien-Sheng Liu , Po-Heng Lin , Yung-Hsing Wang , Shun-Sheng Ke , Meng-Che Tsai , Yu-Hsiu Chang
- 申请人地址： TW HSINCHU
- 专利权人： INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
- 当前专利权人： INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
- 当前专利权人地址： TW HSINCHU
- 优先权： TWTW96117226 20070515
- 主分类号： G02B7/04
- IPC分类号： G02B7/04 ; H02K41/035
摘要：
A voice coil motor. At least one guide bar is connected to a fixed base. A coil is connected to the fixed base. A support base is movably fit on the guide bar. An annular magnetic member is connected to the support base and surrounded by the coil. A magnetization direction of the annular magnetic member parallels a moving direction of the support base and annular magnetic member. The annular magnetic member includes a first magnetic pole and a second magnetic pole. The first magnetic pole is disposed in the coil and separated from the bottom thereof. The second magnetic pole is disposed outside the coil. The coil interacts with the annular magnetic member to generate a first force, driving the support base and annular magnetic member to move along the magnetization direction of the annular magnetic member.