公开(公告)号：US20110101825A1

公开(公告)日：2011-05-05

申请号：US12642382

申请日：2009-12-18

申请人： Jung Wook Hwang ,  Gui Youn Lee ,  Jung Seok ,  Hyun Phill Ko

发明人： Jung Wook Hwang ,  Gui Youn Lee ,  Jung Seok ,  Hyun Phill Ko

IPC分类号： H02N2/04

CPC分类号： H01L41/0906

摘要： Disclosed herein is a piezoelectric motor. The piezoelectric motor includes a piezoelectric vibrating body, a dummy piezoelectric sheet layer and a contact member. The piezoelectric vibrating body is configured such that piezoelectric sheets on which electrode patterns are printed are stacked on one on another. The dummy piezoelectric sheet layer is provided on the piezoelectric vibrating body. The contact member is provided on the outer surface of the dummy piezoelectric sheet layer. The contact member transmits vibrations generated from the piezoelectric vibrating body to the outside. Therefore, the piezoelectric motor can minimize a problem in which vibration characteristics vary attributable to contact between a contact member and an electrode pattern of a piezoelectric vibrating body.

摘要翻译： 这里公开了一种压电马达。 压电电动机包括压电振动体，虚拟压电片层和接触构件。 压电振动体被构造为使得其上印刷有电极图案的压电片层叠在一起。 虚拟压电片层设置在压电振动体上。 接触构件设置在虚拟压电片层的外表面上。 接触构件将从压电振动体产生的振动传递到外部。 因此，压电马达能够最小​​化振动特性由于接触构件与压电振动体的电极图案之间的接触而变化的问题。

公开(公告)号：US07382080B2

公开(公告)日：2008-06-03

申请号：US11139516

申请日：2005-05-31

申请人： Gui Youn Lee ,  Dong Kyun Lee ,  Jung Ho Ryu ,  Byung Woo Kang ,  Hyoung Jun Jeon

发明人： Gui Youn Lee ,  Dong Kyun Lee ,  Jung Ho Ryu ,  Byung Woo Kang ,  Hyoung Jun Jeon

IPC分类号： H02N2/08

CPC分类号： H02N2/147 ,  H02N2/0015

摘要： The present invention provides a piezoelectric ultrasonic motor driver which can perform self-oscillation, adjust the rotational direction of the motor, and be easy to manufacture. The motor includes a metal body having a desired shape; a plurality of piezoelectric plates attached to surfaces of the metal body, contracted and expanded to rotate the metal body; a self-oscillation unit for oscillating at an electromechanical frequency of the piezoelectric plates an electrical signal; and a delay unit for delaying an oscillation signal of the self-oscillation unit in phase by 90 or −90 degrees according to a desired rotational direction.

摘要翻译： 本发明提供一种能够进行自振荡的压电超声波马达驱动器，调整电动机的旋转方向，易于制造。 马达包括具有期望形状的金属体; 多个压电板，附接到金属体的表面，收缩并膨胀以使金属体旋转; 自振荡单元，用于在压电板的机电频率处振荡电信号; 以及延迟单元，用于根据期望的旋转方向将自振荡单元的振荡信号相位延迟90度或-90度。