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    • 7. 发明授权
    • Piezoelectric actuator
    • 压电执行器
    • US06741012B2
    • 2004-05-25
    • US10025018
    • 2001-12-19
    • Shinji KoganezawaKenichi MakinoShuichi HeyaShinji Hiraoka
    • Shinji KoganezawaKenichi MakinoShuichi HeyaShinji Hiraoka
    • H01L4108
    • G11B5/5521G11B5/4813H01L41/0475H01L41/0993
    • The small and light piezoelectric actuator of the present invention is capable of highly precisely positioning a magnetic head assemblies, etc. The piezoelectric actuator comprises: a movable member to which a head suspension is fixed; a fixed member fixed to a carriage arm; piezoelectric elements provided between the movable member and the fixed member and capable of adjusting a position of the head suspension by their deformation; and an electrode member electrically connected to one of electrodes of each of the piezoelectric elements. The movable member is adhered on the piezoelectric elements and electrically insulated from the other electrodes of the piezoelectric elements. The electric conductive layer of the electrode member and the other electrode of each of the piezoelectric elements are electrically connected to cables, which are provided to the head suspension so as to actuate the piezoelectric elements.
    • 本发明的小而轻的压电致动器能够精确地定位磁头组件等。压电致动器包括:固定有磁头悬架的可动构件,固定到滑架臂的固定构件,设置在滑架臂之间的压电元件 可移动构件和固定构件,并且能够通过其变形来调节头部悬置的位置,以及电连接到每个压电元件的电极的电极构件。 可动构件粘附在压电元件上并与压电元件的另一个电极电绝缘。 电极构件的导电层和每个压电元件的另一个电极电连接到电缆,电缆被设置到磁头悬架上以驱动压电元件。