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Aktorisch wirksames und/oder sensitives Element, Verfahren zu seiner Herstellung sowie seine Verwendung

Operative actuating and/or sensing element for use as e.g. actuator in metal component, has sintered piezoelectric/electrostrictive component surrounded by low temperature co-fired ceramic and electrical conductively contacted with element
 
: Schönecker, A.; Gebhardt, S.; Partsch, U.

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Frontpage ()

DE 102007051075 A: 20071017
DE 102007051075 A: 20071017
H01L0041
H02N0002
Deutsch
Patent
Fraunhofer IKTS ()

Abstract
(A1) Die Erfindung betrifft ein aktorisch wirksames und/oder sensitives Element, ein Verfahren zu seiner Herstellung sowie Verwendungen dieses Elementes. Aufgabe der Erfindung ist es, ein aktorisch wirksames und/oder sensitives Element zur Verfuegung zu stellen, das unter erhoehten Belastungen und insbesondere auch innerhalb von Bauteilen in diese in integrierter Form eingesetzt werden kann. Ein erfindungsgemaesses aktorisch wirksames und/oder sensitives Element ist dabei so ausgebildet, dass das mindestens eine gesinterte piezoelektrische oder elektrostriktive Bauteil, das elektrisch leitend kontaktiert ist, von einer LTCC-Keramik umschlossen ist.

 

WO 2009049613 A2 UPAB: 20090514 NOVELTY - The element has a sintered piezoelectric or electrostrictive component (2) completely surrounded by a low temperature co-fired ceramic (LTCC), where the electrostrictive component is contacted with the element in an electrically conductive manner. The electrostrictive component is designed as plate shape or as molded body, and is formed with piezo-ceramic fiber or electrostrictive fiber/small rod. The electrostrictive component is arranged asymmetric with respect to an axis of the element within the co-fired ceramic. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for manufacturing an operative actuating and/or sensing element. USE - Operative actuating and/or sensing element for use as a pump, dosing device, valve, force sensor, path sensor, pressure sensor, actuator or ultrasonic transducer in a metal component or a structure component from metal, glass, plastic or a component with fiber composite material (all claimed). ADVANTAGE - The sintered piezoelectric/electrostrictive component is surrounded by the low temperature co-fired ceramic and is in contact with the operative actuating and/or sensing element in electrically conductive manner, thus inserting the element in integrated form into the interior of the components even under increased loads.

: http://publica.fraunhofer.de/dokumente/N-95825.html