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    • 1. 发明授权
    • Laminated piezoelectric component
    • 层叠压电元件
    • US06433654B1
    • 2002-08-13
    • US09574884
    • 2000-05-19
    • Shungo KanaiMasao Gamo
    • Shungo KanaiMasao Gamo
    • H03H905
    • H03H9/0561H03H9/1035H03H9/58
    • A laminated piezoelectric component or filter is arranged such that a change in the resonance frequency before and after a high temperature heat treatment such as reflowing is minimized and the distribution of the resonance frequency is also minimized. The laminated filter includes a piezoelectric substrate having a vibrating electrode provided on the back surface of the substrate, cover substrates, and adhesives located between the piezoelectric substrate and cover substrate. The change in the center frequency Fo due to the heat applied to the piezoelectric substrate during reflowing is canceled by the change of the center frequency Fo caused by the synthesized stress imparted to the piezoelectric substrates from the cover substrates and adhesives.
    • 叠层压电元件或滤波器被布置成使得诸如回流之类的高温热处理之前和之后的谐振频率的变化被最小化,并且共振频率的分布也被最小化。 层压滤波器包括具有设置在基板的背面上的振动电极的压电基板,盖基板和位于压电基板和盖基板之间的粘合剂。 由于在回流期间施加到压电基板的热量的中心频率Fo的变化由于由覆盖基板和粘合剂施加到压电基板的合成应力引起的中心频率Fo的变化而被抵消。
    • 2. 发明授权
    • Piezoelectric resonator and piezoelectric resonant element
    • 压电谐振器和压电谐振元件
    • US06377135B1
    • 2002-04-23
    • US09648526
    • 2000-08-26
    • Shungo KanaiMasao Gamo
    • Shungo KanaiMasao Gamo
    • H03H917
    • H03H9/56H03H9/0561H03H9/1035
    • First resonant electrodes are provided on one main surface of a piezoelectric plate, a second resonant electrode is provided on the other main surface of the piezoelectric plate, such that the first and second resonant electrodes face each other. An energy trap-type piezoelectric vibrating section is thus provided by the first and second resonant electrodes, and a capacitor section is provided in a position separated from the vibrating section. The capacitor section has a first capacitor electrode provided on the upper surface of the piezoelectric plate, and has a second capacitor electrode provided on the bottom surface of the piezoelectric plate. Further, an outer edge portion of the first capacitor electrode is spaced from an outside edge of the piezoelectric plate, thus providing a margin area except at the portions led out to the outside edge of the piezoelectric plate.
    • 第一谐振电极设置在压电板的一个主表面上,第二谐振电极设置在压电板的另一个主表面上,使得第一和第二谐振电极彼此面对。 因此,由第一和第二谐振电极提供能量陷波型压电振动部,并且在与振动部分隔开的位置设置电容器部。 电容器部分具有设置在压电板的上表面上的第一电容器电极,并且具有设置在压电板的底表面上的第二电容器电极。 此外,第一电容器电极的外边缘部分与压电板的外边缘间隔开,从而在引出到压电板的外边缘的部分之外提供边缘区域。
    • 3. 发明授权
    • Piezoelectric microblower
    • 压电微型鼓风机
    • US08684707B2
    • 2014-04-01
    • US12959462
    • 2010-12-03
    • Shungo KanaiGaku KamitaniYoko Kaneda
    • Shungo KanaiGaku KamitaniYoko Kaneda
    • F04B17/00F04B35/04
    • F04B45/047F04B2201/0806F04B2201/12
    • A piezoelectric microblower includes a vibrating plate including a piezoelectric element and arranged to be driven in a bending mode by applying a voltage of a predetermined frequency to the piezoelectric element, and a blower body arranged to fix both ends or a periphery of the vibrating plate and to define a blower chamber between the blower body and the vibrating plate, an opening being provided in a portion of the blower body facing a central portion of the vibrating plate. In a portion of the blower chamber corresponding to the central portion of the vibrating plate, a partition is provided around the opening and a resonance space is defined inside of the partition. A size of the resonance space is set such that a driving frequency of the vibrating plate and a Helmholtz resonance frequency of the resonance space correspond to each other.
    • 一种压电微型鼓风机包括:振动板,其包括压电元件,并配置为通过向压电元件施加预定频率的电压而以弯曲模式驱动;以及鼓风机主体,其布置成将振动板的两端或周边固定,以及 在所述鼓风机主体和所述振动板之间限定鼓风机室,所述鼓风机主体的面向所述振动板的中心部分的部分设置有开口。 在对应于振动板的中心部分的鼓风机室的一部分中,在开口周围设置隔板,并且在隔板内限定共振空间。 谐振空间的大小被设定为使得振动板的驱动频率和谐振空间的亥姆霍兹共振频率彼此对应。
    • 4. 发明申请
    • PIEZOELECTRIC VIBRATOR
    • 压电振动器
    • US20080290759A1
    • 2008-11-27
    • US12187965
    • 2008-08-07
    • Hiroaki KaidaShungo KanaiHitoshi Sakaguchi
    • Hiroaki KaidaShungo KanaiHitoshi Sakaguchi
    • H01L41/04H01L41/24
    • H03H9/177H03H9/0207H03H9/131H03H9/562Y10T29/42
    • An energy-trapping strip piezoelectric vibrator utilizing a third harmonic overtone of a thickness shear mode is provided. A piezoelectric vibrator 1 has a strip piezoelectric ceramic substrate 2 polarized in a longitudinal direction, and first and second excitation electrodes 3 and 4 provided on first and second principal surfaces 2a and 2b of the piezoelectric ceramic substrate 2. An excitation region 5 including a piezoelectric vibration portion that includes a portion where the first and second excitation electrodes 3 and 4 overlap and that utilizes harmonics of the thickness shear mode is formed. A region around the piezoelectric vibration portion is set as a non-excitation region. At least a region of the non-excitation region neighboring the piezoelectric vibration portion is a region having the same polarization axis direction as the excitation region 5 and a relatively small polarization degree or is an unpolarized region.
    • 提供了利用厚度剪切模式的三次谐波泛音的能量捕获带压电振动器。 压电振动器1具有沿纵向极化的带状压电陶瓷基板2,以及设置在压电陶瓷基板2的第一和第二主面2a,2b上的第一和第二激励电极3,4。 形成包括第一和第二激励电极3和4重叠的部分并且利用厚度剪切模式的谐波的振动部分。 压电振动部周围的区域被设定为非激励区域。 至少与压电振动部分相邻的非激​​发区域的区域是具有与激发区域5相同的偏振轴方向和相对较小偏振度的区域或者是非偏振区域。
    • 8. 发明申请
    • Piezoelectric Pump
    • 压电泵
    • US20090142209A1
    • 2009-06-04
    • US12351158
    • 2009-01-09
    • Atsuhiko HirataShungo KanaiGaku Kamitani
    • Atsuhiko HirataShungo KanaiGaku Kamitani
    • F04B17/03
    • F04B43/046H01L41/0471H01L41/083H01L41/0973H01L41/257
    • A piezoelectric pump capable of generating a large displacement at a central portion of a piezoelectric element even when a driving voltage is relatively low and preventing short-circuits caused by migration. The piezoelectric pump includes a pump body with a pump chamber, and a piezoelectric element that closes the pump chamber. The central area and the peripheral area of the piezoelectric element are bent in opposite directions by applying voltages to the piezoelectric element so that the volume of the pump chamber is changed. The piezoelectric element is a laminate including a plurality of piezoelectric layers with electrodes interposed therebetween. The central area and the peripheral area of each piezoelectric layer are polarized opposite to each other in the thickness direction, and the electrodes are formed such that voltages in the same direction in the thickness direction are applied to the central area and the peripheral area of each piezoelectric layer. Since voltages at the same potential are applied to the electrodes formed in the same planes of the piezoelectric layers, short-circuits caused by migration can be prevented.
    • 即使在驱动电压相对较低并且防止迁移引起的短路的情况下,也能够在压电元件的中央部产生较大的位移的压电泵。 压电泵包括具有泵室的泵体和关闭泵室的压电元件。 通过向压电元件施加电压使压电元件的中心区域和周边区域沿相反方向弯曲,使得泵室的体积发生变化。 压电元件是包括多个压电层的层叠体,其间具有电极。 每个压电层的中心区域和周边区域在厚度方向上彼此相反地极化,并且电极形成为使得厚度方向上相同方向的电压施加到每个的中心区域和周边区域 压电层。 由于将相同电位的电压施加到形成在压电层的同一平面上的电极,所以可以防止由迁移引起的短路。
    • 9. 发明授权
    • Piezoelectric micro-blower
    • 压电式微型鼓风机
    • US08899944B2
    • 2014-12-02
    • US13444913
    • 2012-04-12
    • Shungo KanaiYoko Kaneda
    • Shungo KanaiYoko Kaneda
    • F04B43/04F04B45/047
    • F04B45/047F04B43/046F04D33/00
    • In a piezoelectric micro-blower, a vibration plate assembly includes a piezoelectric element attached to a diaphragm, with an intermediate plate interposed there between. A blower chamber plate includes a circular opening in a center thereof. A blower chamber defined by the diaphragm, a flow path plate, and the opening of the blower chamber plate is sized to allow internal pressure to be substantially uniformly changed by vibration of the diaphragm. The blower chamber plate and the flow path plate are provided with a first outlet and a second outlet, respectively. Compressive fluid pressurized in the blower chamber is blown out through the first and second outlets.
    • 在压电微型鼓风机中,振动板组件包括安装在隔膜上的压电元件,其间介于其间的中间板。 鼓风机室板包括在其中心的圆形开口。 由隔膜,流路板和鼓风机室板的开口限定的鼓风机室的尺寸被设计成允许通过隔膜振动基本均匀地改变内部压力。 鼓风机室板和流路板分别设有第一出口和第二出口。 在鼓风机室中加压的压缩流体通过第一和第二出口吹出。