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    • 24. 发明授权
    • Piezoelectrically actuated driving and adjusting element
    • 压电式驱动和调节元件
    • US5900691A
    • 1999-05-04
    • US849556
    • 1997-06-04
    • Martin ReuterKonrad Voigt
    • Martin ReuterKonrad Voigt
    • H01L41/083G05D3/00H01L41/09H01L41/12
    • H02N2/026H02N2/0025H02N2/0095H02N2/028H02N2/103
    • A piezoelectrically actuated driving and adjusting apparatus transmits both pure translation movements and rotation movements. The object of the present invention is to provide a piezoelectrically actuated driving and adjusting apparatus having a simple, compact and robust mechanical structure, capable of ensuring long adjustment paths and suitable for various adjustment and drive tasks using the same principle structure. Two parallel stacks of piezoelectric elements are arranged as close as possible to each other. The piezoelectric stacks are supported at first front surfaces on a crossbar by a tiltable coupling. Second front surfaces of the piezoelectric stacks, opposite to the first front surfaces, lie flat on a stiff common member that rigidly interconnects both the piezoelectric stacks. A biasing apparatus is provided to apply a symmetrical, predefinable force on the piezoelectric stacks by acting on the crossbar and the common member. Hinge devices allow opposite groups of components to be deflected, tilted and/or lifted in relation to each other when temporally offset and variable electric voltages are applied to the piezoelectric stacks.
    • PCT No.PCT / EP95 / 04991 Sec。 371日期:1997年6月4日 102(e)日期1997年6月4日PCT 1995年12月16日PCT PCT。 公开号WO96 / 19836 日期1996年6月27日压电驱动驱动和调节装置传输纯平移运动和旋转运动。 本发明的目的是提供一种压电致动的驱动和调节装置,其具有简单,紧凑且坚固的机械结构,其能够确保长的调节路径,并适用于使用相同原理结构的各种调节和驱动任务。 两个平行的压电元件堆叠被布置为尽可能靠近彼此。 压电叠层通过可倾斜耦合支撑在横杆上的第一前表面处。 与第一前表面相对的压电堆叠的第二前表面平坦地紧固在刚性地互连两个压电叠层的公共构件上。 偏置装置被设置成通过作用在横杆和公共构件上而在压电叠层上施加对称的预定义力。 当时间偏移和可变电压施加到压电叠层时,铰链装置允许相对组件相对于彼此偏转,倾斜和/或提升。