公开(公告)号：US10531552B2

公开(公告)日：2020-01-07

申请号：US16077414

申请日：2017-02-07

Applicant: EPCOS AG

Inventor： Pavol Kudela ,  Franz Rinner ,  Markus Puff

IPC: H01L41/107 ,  H05H1/24 ,  H01L41/04

Abstract: A device for generating an atmospheric-pressure plasma is disclosed. In an embodiment the device includes 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.

公开(公告)号：US12207559B2

公开(公告)日：2025-01-21

申请号：US17233009

申请日：2021-04-16

Applicant: EPCOS AG

Inventor： Michael Weilguni ,  Markus Puff ,  Pavol Kudela ,  Bernhard Döllgast

IPC: H10N30/40 ,  C01B13/11 ,  H05H1/24

Abstract: In an embodiment a method includes applying an AC voltage to an input region, converting, by the input region, the AC voltage into a mechanical oscillation, converting, by an output region, the mechanical oscillation into an electrical voltage and igniting a plasma at an output-side end side of an piezoelectric transformer, wherein the piezoelectric transformer includes the input region and the output region, wherein the piezoelectric transformer includes a longest edge and a shortest edge, and wherein the longest edge has a length that is twenty times a length of the shortest edge or less.

公开(公告)号：US11251358B2

公开(公告)日：2022-02-15

申请号：US15746763

申请日：2016-06-27

Applicant: EPCOS AG

Inventor： Bernhard Doellgast ,  Markus Puff ,  Pavol Kudela

IPC: H01L41/047 ,  H01L41/053 ,  H01L41/107 ,  H01L23/32 ,  H01L41/187

Abstract: The present invention relates to a holder (5) for a piezoelectric component (1), having a clamping device (6) and two contact elements (8) which contain a conductive rubber material, wherein the clamping device (6) is designed to clamp the piezoelectric component (1) between the contact elements (8) in a closed state, and wherein the contact elements (8) are in electrical contact with the piezoelectric component (1) in the closed state of the clamping device (6).

公开(公告)号：US20190098739A1

公开(公告)日：2019-03-28

申请号：US16083430

申请日：2017-02-23

Applicant: EPCOS AG

Inventor： Michael Weilguni ,  Markus Puff ,  Pavol Kudela

IPC: H05H1/24 ,  H01L41/04 ,  H01L41/107 ,  C01B13/11

Abstract: A process for producing ozone and an apparatus for ozone generation are disclosed. In an embodiment, a process for producing ozone includes applying an input voltage to an input area of a piezoelectric transformer so that a high voltage is generated in an output area of the piezoelectric transformer, surrounding the piezoelectric transformer with an oxygenic process gas so that the ozone is formed from the process gas by the high voltage generated in the output area, measuring an amount of the generated ozone using a sensor and adapting the input voltage applied to the piezoelectric transformer on a basis of the measured amount of the generated ozone in order to set an ozone generation rate.

公开(公告)号：US20190053366A1

公开(公告)日：2019-02-14

申请号：US16077414

申请日：2017-02-07

Applicant: EPCOS AG

Inventor： Pavol Kudela ,  Franz Rinner ,  Markus Puff

IPC: H05H1/24 ,  H01L41/107 ,  H01L41/04

CPC classification number: H05H1/2475 ,  H01L41/044 ,  H01L41/107 ,  H05H2001/2481

Abstract: A device for generating an atmospheric-pressure plasma is disclosed. In an embodiment the device includes 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.

公开(公告)号：US11792910B2

公开(公告)日：2023-10-17

申请号：US17361864

申请日：2021-06-29

Applicant: EPCOS AG

Inventor： Michael Weilguni ,  Markus Puff ,  Pavol Kudela

IPC: H05H1/24 ,  C01B13/11 ,  H10N30/40 ,  H10N30/80

CPC classification number: H05H1/2475 ,  C01B13/115 ,  H10N30/40 ,  H10N30/804 ,  H05H1/2481

Abstract: In an embodiment a process for producing ozone includes applying an input voltage to an input area of a piezoelectric transformer so that a high voltage is generated in an output area of the piezoelectric transformer, wherein the piezoelectric transformer is operated in a pulsed manner such that phases in which the input voltage is applied to the piezoelectric transformer and phases in which the input voltage is not applied to the piezoelectric transformer alternate at regular intervals and surrounding the piezoelectric transformer with an oxygenic process gas so that the ozone is formed from the process gas by the high voltage generated in the output area.

公开(公告)号：US11101426B2

公开(公告)日：2021-08-24

申请号：US15775805

申请日：2016-11-08

Applicant: EPCOS AG

Inventor： Bernhard Döllgast ,  Franz Rinner ,  Pavol Kudela

IPC: H01L41/107 ,  H01L41/047 ,  H05H1/24 ,  H01L41/083

Abstract: A piezoelectric transformer is disclosed In an embodiment a piezoelectric transformer includes a cylindrical base body with an input region and an output region, wherein a cylinder axis of the base body extends in a longitudinal direction, wherein the input region is configured to convert an AC voltage into a mechanical vibration, wherein the output region is configured to convert a mechanical vibration into an electrical voltage, wherein the output region includes a single piezoelectric layer polarized in the longitudinal direction, wherein, in the input region, a first piezoelectric layer, on which a first internal electrode is arranged, and a second piezoelectric layer, on which a second internal electrode is arranged, are wound onto one another, and wherein the first piezoelectric layer and the second piezoelectric layer are polarized in a radial direction which is perpendicular to the longitudinal direction.

公开(公告)号：US11076474B2

公开(公告)日：2021-07-27

申请号：US16083430

申请日：2017-02-23

Applicant: EPCOS AG

Inventor： Michael Weilguni ,  Markus Puff ,  Pavol Kudela

IPC: H05H1/24 ,  C01B13/11 ,  H01L41/04 ,  H01L41/107

Abstract: In an embodiment an apparatus for generating ozone includes a piezoelectric transformer having an input area and an output area, wherein the input area is configured to convert an applied AC voltage into a mechanical vibration, and wherein the output area is configured to convert the mechanical vibration into an electrical voltage so that the ozone is generated by the electrical voltage of the output area.

公开(公告)号：US20180368244A1

公开(公告)日：2018-12-20

申请号：US16061860

申请日：2017-10-20

Applicant: EPCOS AG

Inventor： Franz Rinner ,  Pavol Kudela ,  Markus Puff

IPC: H05H1/24 ,  H01L41/04 ,  H01L41/053 ,  H01L41/107

Abstract: An apparatus for generating an atmospheric pressure plasma is disclosed. In an embodiment an apparatus includes a first support element and a piezoelectric transformer supported by the first support element, wherein the piezoelectric transformer is supported at a position at which an oscillation node is formed when the piezoelectric transformer is operated at an operating frequency that is lower than its parallel resonant frequency, and wherein the piezoelectric transformer is configured to generate a non-thermal atmospheric pressure plasma.

公开(公告)号：US20210329770A1

公开(公告)日：2021-10-21

申请号：US17361864

申请日：2021-06-29

Applicant: EPCOS AG

Inventor： Michael Weilguni ,  Markus Puff ,  Pavol Kudela

IPC: H05H1/24 ,  C01B13/11 ,  H01L41/04 ,  H01L41/107

Abstract: In an embodiment a process for producing ozone includes applying an input voltage to an input area of a piezoelectric transformer so that a high voltage is generated in an output area of the piezoelectric transformer, wherein the piezoelectric transformer is operated in a pulsed manner such that phases in which the input voltage is applied to the piezoelectric transformer and phases in which the input voltage is not applied to the piezoelectric transformer alternate at regular intervals and surrounding the piezoelectric transformer with an oxygenic process gas so that the ozone is formed from the process gas by the high voltage generated in the output area.