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Barriereentladungselektrode mit Kuehlung

Barrier discharge electrode for use in barrier discharge producing device, has conductive layer provided between two dielectric layers, and channel present on side of one dielectric layer, where side is turned away from conductive layer
 
: Heise, M.; Franken, O.

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Frontpage ()

DE 102005013602 A: 20050324
DE 2005-102005013602 A: 20050324
DE 102005013602 A1: 20060928
German
Patent, Electronic Publication
Fraunhofer ILT ()

Abstract
Die Erfindung betrifft eine Barrierenentladungselektrode, welche eine erste (8) und eine zweite dielektrische Schicht (1) und zwischen diesen eine elektrisch leitende, mit Hochspannung beaufschlagbare Schicht (7) aufweist, wobei an der von der elektrisch leitenden Schicht (7) abgewandten Seite der ersten dielektrischen Schicht (8) ein von einem Kuehlmedium durchstroembarer Kanal (9) vorhanden ist.

 

DE 102005013602 A1 UPAB: 20061121 NOVELTY - The electrode has an electrically conductive layer (7) provided between two dielectric layers (1, 8), where the conductive layer is subjectable with high voltage. A channel (9), through which a cooling medium flows, is present on a side of the dielectric layer (8), where the side is turned away from the electrically conductive layer. The two dielectric layers are formed by walls of two pipes, respectively. USE - Used in a barrier discharge producing device that is utilized for surface treatment of thermally sensitive plastic or metal (all claimed), and for cleaning grease or oil film on a metal plate or a foil. ADVANTAGE - The arrangement of the electrode makes possible to effectively cool the electrode with high power densities, thus enabling to hold the electrode at a constant temperature. The holding of the electrode at constant temperature and reduction of material charging increase the life span of the electrode. The channel is present on the side of the dielectric layer, where the side is turned away from the electrically conductive layer, thus providing a large electrical voltage drop in the direction of the channel and a large electrical isolation of the channel and/or the cooling medium flowing through the channel. The voltage drop in the direction of the channel and the large electrical isolation of the channel provide a spatial separation of the cooling agent and the high voltage supply, thus enabling the utilization of low conductive cooling medium e.g. tap water. The choice of the cooling medium provides simple and inexpensive construction and operation for cooling the electrode.

: http://publica.fraunhofer.de/documents/N-51787.html