PIEZO ELECTRIC LINEAR MOTOR
    1.
    发明申请
    PIEZO ELECTRIC LINEAR MOTOR 审中-公开
    PIEZO电动直线电机

    公开(公告)号:WO2008050932A1

    公开(公告)日:2008-05-02

    申请号:PCT/KR2006/005350

    申请日:2006-12-08

    CPC classification number: H02N2/026 H02N2/0015

    Abstract: The present invention relates to a piezoelectric linear motor that can make relatively low abrasion and accurate linear movement since stationary AC voltages are applied to two piezoelectric elements with a phase difference. The present invention provides a piezoelectric linear motor, comprising: a piezoelectric substrate having a first piezoelectric element and a second piezoelectric element, wherein AC voltages are applied to the first and second piezoelectric elements with a phase difference; a metallic elastic body having first and second elastic bodies coupled to the piezoelectric elements and a central protrusion protruded at the central portion connecting the first and second elastic bodies, wherein the central protrusion oscillates elliptically during an application of the voltage; and a mover brought into contact with the central protrusion of the metallic elastic body for a linear movement, and wherein the movement of the mover is orthogonal to the central protrusion.

    Abstract translation: 本发明涉及一种压电线性电动机,其可以使相对低的磨损和精确的线性运动,因为固定的AC电压被施加到具有相位差的两个压电元件。 本发明提供一种压电线性电动机,包括:具有第一压电元件和第二压电元件的压电基板,其中交流电压以相位差施加到第一和第二压电元件; 金属弹性体,其具有联接到所述压电元件的第一和第二弹性体以及在连接所述第一和第二弹性体的中心部分处突出的中心突起,其中所述中心突起在施加所述电压期间椭圆形振荡; 以及与金属弹性体的中心突起接触的动子,用于线性运动,并且其中移动器的运动与中心突起正交。

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