Device for Generating an Atmospheric-Pressure Plasma

A device for generating an atmospheric-pressure plasma comprising:

• a piezoelectric transformer comprising an input region and an output region, wherein the input region is designed to convert an applied alternating voltage into a mechanical oscillation, wherein the output region is designed to convert a mechanical oscillation into a voltage, and wherein the output region adjoins the input region in a longitudinal direction;
• a contact element fastened to the piezoelectric transformer, the contact element being designed to apply the alternating voltage to the input region;
• and
• a holder, wherein the contact element is connected to the holder by a form-fit connection, in such a manner that a movement of the piezoelectric transformer in the longitudinal direction, relative to the holder, is prevented,
• wherein the holder has at least two support elements, on which the piezoelectric transformer is supported and which prevent a movement of the piezoelectric transformer in a direction perpendicular to the longitudinal direction,
• wherein the support elements are arranged in such a manner that they bear against the piezoelectric transformer, in the longitudinal direction, at a position that corresponds to one quarter of a length of the piezoelectric transformer, and/or
• wherein the support elements are arranged in such a manner that they bear against the piezoelectric transformer, in the longitudinal direction, at a position that corresponds to three quarters of the length of the piezoelectric transformer.