公开(公告)号：KR100817470B1

公开(公告)日：2008-03-31

申请号：KR1020060103210

申请日：2006-10-24

Applicant: 한국과학기술연구원

Inventor： 강종윤 ,  윤석진 ,  정대용 ,  김현재 ,  피오트바실욥프 ,  최지원

IPC: H02N2/00 ,  H02N2/06

CPC classification number: H02N2/026 ,  H02N2/0015

Abstract: A piezo-electric linear motor is provided to precisely move a mover in a desired distance by desired friction force by changing a long radius and a short radius of oval displacement through a frequency control. A piezo-electric linear motor includes a power unit(130), a piezo-electric substrate(100), a metallic elastic body(110), and a move(120). The power unit includes a first power source(131) and a second power source(132). The piezo-electric substrate includes a first piezo-electric device(101) and a second piezo-electric device(102) which receive voltages from the power unit. The metallic elastic body includes first and second elastic bodies(111,112), and a center projection portion(113). The mover is in contact with the center projection portion of the metallic elastic body. A piezo-electric actuator is formed by connecting the piezo-electric substrate to the metallic elastic body. A buffering support is provided at a side opposed to the mover. The buffering support guides and supports the movement of the mover, and buffers a shock generated at the time when the center projection portion is in contact with the mover.

Abstract translation: 提供压电线性电动机，通过改变通过频率控制的长半径和椭圆形位移的短半径，通过期望的摩擦力将移动器精确地移动到期望的距离。 压电线性电动机包括动力单元（130），压电基板（100），金属弹性体（110）和移动（120）。 功率单元包括第一电源（131）和第二电源（132）。 压电基板包括从动力单元接收电压的第一压电装置（101）和第二压电装置（102）。 金属弹性体包括第一和第二弹性体（111,112）和中心突出部分（113）。 动子与金属弹性体的中心突起部接触。 压电致动器通过将压电基板连接到金属弹性体而形成。 在与移动者相对的一侧提供缓冲支撑。 缓冲支撑件引导和支撑移动器的运动，并且缓冲在中心突出部分与动子接触时产生的冲击。