Piezoelectric generating element and method for estimating power generation amount of piezoelectric generating element
    2.
    发明授权
    Piezoelectric generating element and method for estimating power generation amount of piezoelectric generating element 有权
    压电发电元件及压电发电元件的发电量的估计方法

    公开(公告)号:US08669695B2

    公开(公告)日:2014-03-11

    申请号:US13859905

    申请日:2013-04-10

    Inventor: Satoshi Wada

    CPC classification number: H01L41/113 H01L41/1136 H01L41/187 H02N2/18

    Abstract: Provided is a piezoelectric generating element having an electrode on an outer surface of a piezoelectric ceramic body, wherein the piezoelectric ceramic body has a relative permittivity of 110 to 1700, an elastic compliance of 15 to 150 pm2/N, and a void ratio of 20 to 75%. Preferably, the void ratio is 50 to 75% in the piezoelectric generating element. A crystal particle is modeled as a cube with a length X on a side, a virtual void portion is provided in cube, a void ratio x is calculated based on a thickness t of a frame excluding void portion, a relative permittivity εr and an elastic compliance s are calculated based on void ratio x, and a power generation amount P is estimated. Thereby, a piezoelectric generating element capable of significantly increasing a power generation amount more than before, and a method for estimating a power generation amount of the piezoelectric generating element can be obtained.

    Abstract translation: 提供一种在压电陶瓷体的外表面上具有电极的压电发生元件,其中压电陶瓷体的相对介电常数为110〜1700,弹性柔量为15〜150pm2 / N,空隙率为20 至75%。 优选地,压电发电元件中的空隙率为50〜75%。 将晶体颗粒建模为在一侧具有长度X的立方体,虚拟空隙部分设置在立方体中,空隙率x基于不包括空隙部分的框架的厚度t,相对介电常数ε和弹性 基于空隙率x计算顺从性,估计发电量P. 由此,可以获得能够比以前显着增加发电量的压电发电元件,并且可以获得用于估计压电发电元件的发电量的方法。

    PIEZOELECTRIC GENERATING ELEMENT AND METHOD FOR ESTIMATING POWER GENERATION AMOUNT OF PIEZOELECTRIC GENERATING ELEMENT
    4.
    发明申请
    PIEZOELECTRIC GENERATING ELEMENT AND METHOD FOR ESTIMATING POWER GENERATION AMOUNT OF PIEZOELECTRIC GENERATING ELEMENT 有权
    压电发电元件和压电发电机组发电量估算方法

    公开(公告)号:US20130229090A1

    公开(公告)日:2013-09-05

    申请号:US13859905

    申请日:2013-04-10

    Inventor: Satoshi Wada

    CPC classification number: H01L41/113 H01L41/1136 H01L41/187 H02N2/18

    Abstract: Provided is a piezoelectric generating element having an electrode on an outer surface of a piezoelectric ceramic body, wherein the piezoelectric ceramic body has a relative permittivity of 110 to 1700, an elastic compliance of 15 to 150 pm2/N, and a void ratio of 20 to 75%. Preferably, the void ratio is 50 to 75% in the piezoelectric generating element. A crystal particle is modeled as a cube with a length X on a side, a virtual void portion is provided in cube, a void ratio x is calculated based on a thickness t of a frame excluding void portion, a relative permittivity εr and an elastic compliance s are calculated based on void ratio x, and a power generation amount P is estimated. Thereby, a piezoelectric generating element capable of significantly increasing a power generation amount more than before, and a method for estimating a power generation amount of the piezoelectric generating element can be obtained.

    Abstract translation: 提供一种在压电陶瓷体的外表面上具有电极的压电发生元件,其中压电陶瓷体的相对介电常数为110〜1700,弹性柔量为15〜150pm2 / N,空隙率为20 至75%。 优选地,压电发电元件中的空隙率为50〜75%。 将晶体颗粒建模为在一侧具有长度X的立方体,虚拟空隙部分以立方体形式提供,空隙率x基于不包括空隙部分的框架的厚度t,相对介电常数ε和弹性 基于空隙率x计算顺从性,估计发电量P. 由此,可以获得能够比以前显着增加发电量的压电发电元件,并且可以获得用于估计压电发电元件的发电量的方法。

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