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    • 55. 发明申请
    • PIEZOELECTRIC COMPONENT COMPRISING SECURITY LAYER AND METHOD FOR THE PRODUCTION THEREOF
    • 包含安全层的压电元件及其生产方法
    • US20100026144A1
    • 2010-02-04
    • US12593319
    • 2008-03-26
    • Harald Johannes KastlCarsten Schuh
    • Harald Johannes KastlCarsten Schuh
    • H01L41/00H01L41/24F16K31/02
    • F02M63/0026H01L41/0533H01L41/0838H01L41/23Y10T29/42
    • A piezoelectric component with a monolithic stack has piezoceramic layers and electrode layers arranged alternately one on top of the other, at least one porous security layer arranged in the stack for the formation of a crack if mechanical overload of the stack occurs, at least one outer electrode arranged at a lateral surface section for electric contacting of the electrode layers and a plastic sheath of the stack for protecting the stack, wherein the plastic sheath has silicon. The piezoelectric component is characterized in that a coating of the outer electrode, has silicon-free polymer, is arranged between the outer electrode and the plastic sheath. By coating the plating of the outer electrode, the area of the security layer present directly under the plating is protected from silicon component deposits. The piezoelectric component is used for the control of valves, particularly of injection valves of internal combustion engines.
    • 具有整体堆叠的压电元件具有交替地彼此交替布置的压电陶瓷层和电极层,至少一个布置在堆叠中的多孔安全层,用于在发生堆叠的机械过载时形成裂纹,至少一个外部 电极布置在用于电极层的电接触的侧表面部分和用于保护叠层的堆叠的塑料护套,其中塑料护套具有硅。 压电元件的特征在于,在外电极和塑料护套之间设置具有无硅聚合物的外电极涂层。 通过涂覆外部电极的电镀,直接在电镀层下方的安全层的面积被保护免受硅成分沉积。 压电元件用于控制阀门,特别是内燃机的喷射阀。
    • 59. 发明授权
    • Piezoelectric component with predetermined breaking point and method for manufacturing and using the component
    • 具有预定断裂点的压电元件及其制造和使用方法
    • US07420319B2
    • 2008-09-02
    • US11202763
    • 2005-08-12
    • Harald Johannes KastlCarsten Schuh
    • Harald Johannes KastlCarsten Schuh
    • H01L41/08
    • H01L41/0471H01L41/0838H01L41/273
    • A piezoelectric component (1) has at least one monolithic piezo element (10) having an electrode layer (101), at least one further electrode layer (102), at least one piezoceramic layer (103) disposed between the electrode layers and at least one predetermined breaking point (100) which, in the event of mechanical overload of the piezo element, leads to the formation of a specific crack (110) in the monolithic piezo element, wherein the predetermined breaking point includes the electrode layer. The component is, for example, a piezoelectric actuator with a monolithic actuator body (2) in which piezo elements with predetermined breaking points and further piezo elements (11) without predetermined breaking points are arranged one on top of the other and sintered collectively.
    • 压电元件(1)具有至少一个具有电极层(101),至少一个另外的电极层(102),至少一个设置在电极层之间的压电陶瓷层(103)和至少一个压电元件 一个预定的断点(100),其在压电元件的机械过载的情况下导致在单片压电元件中形成特定的裂纹(110),其中预定断裂点包括电极层。 该部件例如是具有单片致动器主体(2)的压电致动器,其中具有预定断裂点的压电元件和没有预定断裂点的另外的压电元件(11)一个放置在另一个之上并共同烧结。
    • 60. 发明申请
    • Method For Producing a Monolithic Piezo Actuator With Stack Elements, Monilithic Piezo Actuator With Stack Elements, and Use of the Piezo Actuator
    • 具有堆叠元件的单片压电致动器的方法,具有堆叠元件的单片压电致动器以及压电致动器的使用
    • US20080203853A1
    • 2008-08-28
    • US11996603
    • 2006-07-26
    • Carsten SchuhClaus Zumstrull
    • Carsten SchuhClaus Zumstrull
    • H01L41/00H01L41/22
    • H01L41/257H01L41/0471H01L41/0838H01L41/273Y10T29/42
    • A piezo actuator has a stack element and at least one further stack element, wherein each of the stack elements has stacked piezoceramic layers and electrode layers arranged between the piezoceramic layers, each of the electrode layers extends to at least one of at least two lateral surface sections of the stack element which have external metallizations on them, and are connected to the electrode layers such that adjacently stacked electrode layers can have different electrical potentials applied to them indirectly via the external metallizations, the stack elements are arranged above one another to form a monolithic total stack, and connected to one another by at least one connecting layer. The following steps are provided: a) provision of the total stack and b) production of a load-relieving crack in the connecting layer. An electrical connector in the form of a wire can be fitted on the relevant external metallization regions.
    • 压电致动器具有堆叠元件和至少一个另外的堆叠元件,其中每个堆叠元件具有堆叠的压电陶瓷层和布置在压电陶瓷层之间的电极层,每个电极层延伸到至少两个侧表面中的至少一个 堆叠元件的在其上具有外部金属化的部分,并且连接到电极层,使得相邻堆叠的电极层可以经由外部金属化间接施加到它们的不同电位,堆叠元件彼此上下排列以形成 并且通过至少一个连接层彼此连接。 提供以下步骤:a)提供总堆叠,以及b)在连接层中生产减轻负载的裂纹。 电线形式的电连接器可以安装在相关的外部金属化区域上。