Piezoelectric actuator module having a plurality of interconnected piezoelectric actuators and a method for its preparation

It is a piezoelectric actuator module (1) with at least two in the mechanical direction of action cascaded piezoelectric actuators (2, 3) is proposed, each formed of series-connected in the mechanical direction of action piezo elements via external electrodes (7, 8) contacted inner electrodes (4, 5) varying consist polarity. There are in this case the each having the same polarity of the internal electrodes (4, 5) contacting the external electrodes (7, 8) of the piezoelectric actuators (2, 3) via a geometrically substantially homogeneous link (10, 11; 20; 30; 31, 32; 7a , 8a) being electrically contacted with each other. The compounds can be by a wire (10; 11), a single-layer Siebbrucke (20), a conductive polymer (30; 31; 32) or an extension (7a, 8a) of the external electrodes (7, 8) are formed.