Piezoelectric actuator unit including a casting compound disposed in a sleeve

US8129884B2 · kind B2 · utility

Assignee

• EPCOS AG · DE

Inventors

• Franz Rinner · Wolfsberg, AT
• Herbert Thanner · Graz, AT
• Siegfried Fellner · St. Georgen, AT

Key dates

• Filing date: Jul 6, 2010
• Grant date: Mar 6, 2012
• Expiry date: Jul 6, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10N30/883

Abstract

A piezoelectric actuator unit includes a piezoactuator and a casting compound enclosing the piezoactuator. The casting compound is disposed in a sleeve that includes a hydrophobic material.