Device with a piezoelectric actuator

US6917141B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Hellmut Freudenberg · Bad Abbach, DE
• Wendelin Klugl · Dietenhofen, DE
• Marcus Unruh · Zeitlarn, DE
• Andreas Voigt · Regensburg, DE
• Claus Zumstrull · Regenstauf, DE

Key dates

• Filing date: Mar 5, 2004
• Grant date: Jul 12, 2005
• Expiry date: Mar 5, 2024

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M2200/21

Abstract

A device with a piezoelectric actuator (1) comprises two faces (2, 3) and two electroconductive contact paths (4, 5), each traversing the actuator (1) starting from at least one face (3). The actuator is clamped between two metallic plates (6, 7), each arranged against a face (2, 3). The piezoelectric actuator further comprises an electroinsulating layer (8) arranged between each face 92, 3) and the corresponding metallic plate (6, 7).