PIEZOELECTRIC ACTUATOR, LINEAR DRIVE DEVICE AND ELECTRONIC APPARATUS

PROBLEM TO BE SOLVED: To provide a piezoelectric actuator, a linear drive device and an electronic apparatus that can be made compact.SOLUTION: A piezoelectric actuator 58 includes a vibration member 62 having a tabular piezoelectric element and an electrode plate bonded to the piezoelectric element...

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Bibliographic Details
Main Authors TADA JUNICHI, NARUSHIMA YUKI
Format Patent
LanguageEnglish
Japanese
Published 04.04.2016
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
GENERATION
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To provide a piezoelectric actuator, a linear drive device and an electronic apparatus that can be made compact.SOLUTION: A piezoelectric actuator 58 includes a vibration member 62 having a tabular piezoelectric element and an electrode plate bonded to the piezoelectric element while matching the plate surfaces, and a drive shaft 66 fixed to the vibration member. Outer periphery of the vibration member 62 has a plurality of vertices and sides connecting between the vertices, and the electrode plate has a connection 90 for energization projecting from the side of the vibration member.SELECTED DRAWING: Figure 5 【課題】小型化することができる圧電アクチュエータ、リニア駆動装置及び電子機器を提供する。【解決手段】圧電アクチュエータ５８は、平板状の圧電素子と該圧電素子に互いの板面を合わせて固着された電極板とを有する振動部材６２と、前記振動部材に固定された駆動軸６６と、を有する。前記振動部材６２は、外周が複数の頂点と該頂点間を接続する辺とを有し、前記電極板は、前記振動部材の辺から突起状に突出する通電用接続部９０を有する。【選択図】図５
Bibliography:Application Number: JP20140170247