Epcos Ag

Johann Kreiter

Siegfried Fellner

Georg Kügerl

The invention relates to an actuator unit, which comprises a piezoactuator () having a first end face (') and a second end face (&#x2032;). The actuator unit further comprises a sleeve () for accommodating the piezoactuator (), wherein the sleeve () has a first end face () and a second end face (). The actuator unit further comprises a potting compound () which surrounds the piezoactuator (). The piezoactuator () and the potting compound () are introduced into the sleeve (). The potting compound () extends no further than the first end face (&#x2032;) of the piezoactuator (). The invention further relates to a method for manufacturing an actuator unit and a sleeve for accommodating a piezoactuator.

Actuator unit, method for producing an actuator unit, and sleeve for accommodating a piezoactuator

The invention relates to a method for producing an actuator unit comprising a piezoactuator (), a sleeve () having a first end face () and a second end face (), and a potting compound (). The method comprises: inserting the piezoactuator () into the sleeve (), wherein the piezoactuator is inserted into the sleeve () from the side of the sleeve () having the first end face (); arranging a filling opening of a filling element () in an axial position near the axial position of the second end face () of the sleeve (); filling a hollow space between the inner side of the sleeve () and the piezoactuator () with the potting compound () via the filling opening of the filling element (), such that the potting compound () extends maximally to a first end face (') of the piezoactuator (). The invention further relates to a sleeve () for receiving a piezoactuator ().

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Deutschlandsberg, Austria

Johann Kreiter