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    • 8. 发明授权
    • Piezoelectric element, vibratory actuator and drive unit
    • 压电元件,振动执行器和驱动单元
    • US07646136B2
    • 2010-01-12
    • US12115063
    • 2008-05-05
    • Yusuke AdachiHideaki MukaeMasaru HigashionjiEiichi Nagaoka
    • Yusuke AdachiHideaki MukaeMasaru HigashionjiEiichi Nagaoka
    • H01L41/04H01L41/08
    • H01L41/083H01L41/0913H02N2/004H02N2/006H02N2/026H02N2/06H02N2/065H02N2/103
    • A piezoelectric element is formed by stacking piezoelectric layers and internal electrode layers. The internal electrode layers are positive and negative electrode layers. The positive electrode layers are first and second positive electrode layers. The negative electrode layers are first and second negative electrode layers. Each of the first positive and negative electrode layers includes four divided electrodes and a connecting electrode for connecting a pair of the four divided electrodes formed on diagonally opposite two areas along a first diagonal direction on a principle surface of the associated one of the piezoelectric layers. Each of the second positive and negative electrode layers includes four divided electrodes and a connecting electrode for connecting a pair of the four divided electrodes formed on diagonally opposite two areas along a second diagonal direction on a principle surface of the associated one of the piezoelectric layers.
    • 压电元件通过堆叠压电层和内部电极层形成。 内部电极层是正极层和负极层。 正极层是第一和第二正极层。 负极层是第一负极层和第二负极层。 第一正极层和负极层中的每一个包括四个分隔电极和连接电极,用于在相关联的一个压电层的主表面上沿着第一对角线方向连接形成在对角相对的两个区域上的一对四个分隔电极。 第二正极层和负极层中的每一个包括四个分隔电极和连接电极,用于在相关联的一个压电层的主表面上沿着第二对角线方向连接形成在对角相对的两个区域上的一对四个分隔电极。
    • 10. 发明授权
    • Vibration actuator
    • 振动执行器
    • US07834523B2
    • 2010-11-16
    • US12114839
    • 2008-05-05
    • Masaru HigashionjiHideaki MukaeYusuke AdachiEiichi Nagaoka
    • Masaru HigashionjiHideaki MukaeYusuke AdachiEiichi Nagaoka
    • H01L41/053
    • H01L41/0913H01L41/053H02N2/004H02N2/026
    • An ultrasonic actuator includes: an actuator body using a piezoelectric element and generating a plurality of vibrations of different vibration directions; a driver element provided in the actuator body and operated in accordance with the vibration of the actuator body to output a driving force in a predetermined driving direction; a case containing the actuator body; at least one support rubber provided between the actuator body and the case to elastically support the actuator body along the driving direction with respect to the case; and at least one stopper provided between the actuator body and the case which comes into contact with at least one of the actuator body and the case when the actuator body is displaced in a direction opposite the driving direction such that the displacement of the actuator body in the direction opposite the driving direction is limited.
    • 超声波致动器包括:使用压电元件并产生不同振动方向的多个振动的致动器主体; 驱动器元件,其设置在所述致动器主体中,并且根据所述致动器主体的振动进行操作,以在预定的驱动方向上输出驱动力; 包含致动器本体的壳体; 至少一个支撑橡胶,其设置在所述致动器主体和所述壳体之间,以相对于所述壳体沿着所述驱动方向弹性地支撑所述致动器主体; 以及设置在所述致动器主体和所述壳体之间的至少一个止动件,当所述致动器主体沿与所述驱动方向相反的方向移位时,所述致动器主体和所述壳体中的至少一个与所述致动器主体和所述壳体接触, 与驱动方向相反的方向是有限的。