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    Piezoelectric element unit and driving device
    2.
    发明授权
    Piezoelectric element unit and driving device 有权

    公开(公告)号：US09691964B2

    公开(公告)日：2017-06-27

    申请号：US14604271

    申请日：2015-01-23

    Applicant: TDK CORPORATION

    Inventor： Satoshi Ozawa ,  Atsushi Tamura ,  Akio Abe ,  Kohsuke Shimazaki ,  Haruo Taguchi

    IPC: H01L41/083 ,  H01L41/053 ,  H02N2/02 ,  H01L41/313

    CPC classification number: H01L41/0533 ,  H01L41/083 ,  H01L41/313 ,  H02N2/025

    Abstract: A piezoelectric element unit comprises an element body having an active part and an inactive part; and a first resin part bonding one end surface in the laminating direction of the element body to a mounting surface of a joint member placed to face the one end surface. The first resin part covers the mounting surface up to an outer side surface of the element body corresponding to an interface between the active part and the inactive part, a second resin part covers an outer surface of the first resin part covering the outer side surface of the element body at a position corresponding to the interface between the active part and the inactive part, and the second resin part also integrally covers the outer side surface of the element body corresponding to the active part.

    Laminated piezoelectric actuator
    3.
    发明授权
    Laminated piezoelectric actuator 有权
    层压压电致动器

    公开(公告)号：US09123880B2

    公开(公告)日：2015-09-01

    申请号：US13750517

    申请日：2013-01-25

    Applicant: TDK CORPORATION

    Inventor： Satoshi Ozawa ,  Syuuzi Itoh ,  Haruo Taguchi

    IPC: H01L41/083 ,  H01L41/047 ,  H01L41/04

    CPC classification number: H01L41/0471 ,  H01L41/04 ,  H01L41/083

    Abstract: A laminated piezoelectric device comprising a device body 10 on which a number of piezoelectric layers 2 and internal electrodes 3, 4 are laminated, external electrodes 5, 6 electrically connected to the internal electrodes 3, 4 and formed on the surface of the device body 10, an insulation layer 7 and a resistance layer 8. The insulation layer 7 covers at least a portion wherein internal electrodes 3, 4 are exposed on the surface of the device body 10, where mechanical displacement is generated by applying voltage. The resistance layer 8 is formed to connect between external electrodes 5, 6 and has a lower electric resistance value than the insulation layer 7.

    Abstract translation: 一种叠层压电装置，包括：多个压电层2和内部电极3,4层叠的器件本体10，与内部电极3,4电连接并形成在器件主体10的表面上的外部电极5,6 ，绝缘层7和电阻层8.绝缘层7至少覆盖其中内部电极3,4露出在器件主体10的表面上的部分，其中通过施加电压产生机械位移。 电阻层8形成为在外部电极5,6之间连接，并且具有比绝缘层7低的电阻值。

    LAMINATED PIEZOELECTRIC DEVICE
    4.
    发明申请
    LAMINATED PIEZOELECTRIC DEVICE 有权
    层压式压电器件

    公开(公告)号：US20130193810A1

    公开(公告)日：2013-08-01

    申请号：US13750517

    申请日：2013-01-25

    Applicant: TDK Corporation

    Inventor： Satoshi OZAWA ,  Syuuzi Itoh ,  Haruo Taguchi

    IPC: H01L41/047

    CPC classification number: H01L41/0471 ,  H01L41/04 ,  H01L41/083

    Abstract: A laminated piezoelectric device comprising a device body 10 on which a number of piezoelectric layers 2 and internal electrodes 3, 4 are laminated, external electrodes 5, 6 electrically connected to the internal electrodes 3, 4 and formed on the surface of the device body 10, an insulation layer 7 and a resistance layer 8. The insulation layer 7 covers at least a portion wherein internal electrodes 3, 4 are exposed on the surface of the device body 10, where mechanical displacement is generated by applying voltage. The resistance layer 8 is formed to connect between external electrodes 5, 6 and has a lower electric resistance value than the insulation layer 7.

    Abstract translation: 一种叠层压电装置，包括：多个压电层2和内部电极3,4层叠的器件本体10，与内部电极3,4电连接并形成在器件主体10的表面上的外部电极5,6 ，绝缘层7和电阻层8.绝缘层7至少覆盖其中内部电极3,4露出在器件主体10的表面上的部分，其中通过施加电压产生机械位移。 电阻层8形成为在外部电极5,6之间连接，并且具有比绝缘层7低的电阻值。

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