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    • 63. 发明公开
    • 압전 액추에이터
    • 压电致动器
    • KR1020110085881A
    • 2011-07-27
    • KR1020110001789
    • 2011-01-07
    • 티디케이가부시기가이샤
    • 미야노마사이치
    • H02N2/00H01L41/02
    • H01L41/083H01L41/0471H01L41/0474H01L41/0913H01L41/273H02N2/004
    • PURPOSE: A piezoelectric actuator is provided to improve performance by increasing displacement in driving without increasing internal stress applied to the piezoelectric actuator. CONSTITUTION: In a piezoelectric actuator, a piezoelectric element(2) comprises a first main surface(2a) and a second main surface(2b) which have a rectangular shape. An external electrode layer(11) is arranged at the center of the longer side direction of the first main surface of the piezoelectric element. The external electrode layer comprises a first external electrode(12), a ground external electrode(13), and a second external electrode(14). Friction portions(4A,4B) are formed in the second main surface of the piezoelectric element and generate frictional force between driven members. The friction portions comprises glass contain parts(4A1,4B1) and a protective film(5).
    • 目的:提供压电致动器以通过增加驱动中的位移来提高性能,而不增加施加到压电致动器的内应力。 构成:在压电致动器中,压电元件(2)包括具有矩形形状的第一主表面(2a)和第二主表面(2b)。 外部电极层(11)配置在压电元件的第一主面的长边方向的中心。 外部电极层包括第一外部电极(12),接地外部电极(13)和第二外部电极(14)。 摩擦部分(4A,4B)形成在压电元件的第二主表面中,并在被驱动部件之间产生摩擦力。 摩擦部分包括玻璃容纳部分(4A1,4B1)和保护膜(5)。
    • 66. 发明公开
    • 전기영동증착을 이용한 적층형 세라믹 소자의 공극 밀봉방법
    • 使用电泳沉积方法密封电火花多层陶瓷器件中电极和陶瓷层之间的空气隙的新方法
    • KR1020090126372A
    • 2009-12-09
    • KR1020080052416
    • 2008-06-04
    • 한국전기연구원
    • 정순종김민수김인성송재성이대수
    • H01L41/273
    • H01L41/273H01L41/0471H01L41/053H01L41/083H01L41/187H01L41/297
    • PURPOSE: A method for sealing an air gap of multilayer ceramic devices using electrophoresis deposition is provided to control an inner crevice by sealing the level difference between the electrode and the ceramics with the ceramic powder. CONSTITUTION: A laminate forms an inner electrode film(200) in a ceramic tape(100). A stack ceramic element is comprised of the laminates in the solvent in which the ceramic powder(400) is dispersed. The electrode film of the stack ceramic element is connected to the positive power. A counter electrode(300) located in the solvent is connected to the negative power. The air gap is sealed by transferring the ceramic powder to the electrode film by the electrophoresis deposition. The air gap is generated by the level difference between the ceramic tape and the electrode film.
    • 目的:提供使用电泳沉积密封多层陶瓷器件气隙的方法,通过用陶瓷粉末密封电极和陶瓷之间的电平差来控制内部缝隙。 构成:层压体在陶瓷带(100)中形成内电极膜(200)。 叠层陶瓷元件由分散有陶瓷粉末(400)的溶剂中的层压体构成。 堆叠陶瓷元件的电极膜连接到正电源。 位于溶剂中的对电极(300)连接到负电源。 通过电泳沉积将陶瓷粉末转移到电极膜来密封气隙。 气隙由陶瓷带和电极膜之间的电平差产生。
    • 70. 发明公开
    • 적층형 압전 트랜스포머 및 그 제조 방법
    • 层压式压电变压器
    • KR1020040002532A
    • 2004-01-07
    • KR1020030037106
    • 2003-06-10
    • 가부시키가이샤 무라타 세이사쿠쇼
    • 맛토다카히로가지도시아키이마니시도시오
    • H01L41/107
    • H01L41/273H01L41/0471H01L41/0477H01L41/107
    • PURPOSE: To provide a laminated type piezoelectric transformer wherein the continuity of its electrodes after baking is not reduced, and the reduction of the strength of its piezoelectric-ceramic layer is prevented, and further, a variation in its characteristics is suppressed. CONSTITUTION: A driving portion A wherein a plurality of polarized piezoelectric-ceramic layers 1 and a plurality of inner electrodes 3 are laminated alternately is provided. A pair of input external electrodes 2 connected with the inner electrodes 3 is provided in the driving portion A. A power generating portion B having a piezoelectric ceramics 5 and a pair of output electrodes 4 is provided adjacently to the driving portion A. Each inner electrode 3 is a baked inner electrode which contains a first metal consisting of at least one of silver and palladium, and contains a second metal consisting of at least one of rhodium and iridium.
    • 目的:提供一种层压型压电变压器,其中烘烤后其电极的连续性不降低,并且可以防止其压电陶瓷层的强度降低,并且进一步抑制其特性的变化。 构成:设置交替层叠多个极化压电陶瓷层1和多个内部电极3的驱动部A. 在驱动部分A中设置有与内部电极3连接的一对输入外部电极2.具有压电陶瓷5和一对输出电极4的发电部分B设置成与驱动部分A相邻。每个内部电极 3是烘烤内电极,其含有由银和钯中的至少一种组成的第一金属,并且包含由铑和铱中的至少一种组成的第二金属。