发明授权
- 专利标题: Piezoelectric ultrasonic motor
- 专利标题(中): 压电超声波电机
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申请号: US11498044申请日: 2006-08-03
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公开(公告)号: US07638926B2公开(公告)日: 2009-12-29
- 发明人: Byung Woo Kang , Burhanettin Koc , Jung Ho Ryu , Sang Min On , Dong Kyun Lee
- 申请人: Byung Woo Kang , Burhanettin Koc , Jung Ho Ryu , Sang Min On , Dong Kyun Lee
- 申请人地址: KR Suwon
- 专利权人: Samsung Electro-Mechanics Co., Ltd.
- 当前专利权人: Samsung Electro-Mechanics Co., Ltd.
- 当前专利权人地址: KR Suwon
- 优先权: KR10-2005-0071758 20050805
- 主分类号: H01L41/04
- IPC分类号: H01L41/04 ; H01L41/053 ; H02N2/12 ; H02N2/16
摘要:
A piezoelectric ultrasonic motor includes a piezoelectric stator including a metal tube with an inner space and piezoelectric elements mounted on the outer circumference of the metal tube, a rotary shaft including a rotation bar inserted into the inner space of the metal tube, and a rotation member provided around the rotation bar in contact with the piezoelectric stator. The piezoelectric stator strains with an electric field applied thereto, and the rotation member rotates in response to the strain of the piezoelectric stator. A power transmission member is provided at one portion of the rotation bar to transmit the rotation of the rotation member to an object to be transported. With face contact the motor achieves stable actuation together with enhanced force and sufficient strain, and a flexibility to be applied to various apparatuses such as a camera module.
公开/授权文献
- US20070029900A1 Piezoelectric ultrasonic motor 公开/授权日:2007-02-08