Invention Grant
- Patent Title: Over-voltage protection arrangement having a horn gap located in an insulating housing having a deionization chamber for arc extinguishing
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Application No.: US17422183Application Date: 2019-11-18
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Publication No.: US11749481B2Publication Date: 2023-09-05
- Inventor: Arnd Ehrhardt , Helmut Hirschmann , Sebastian Haas , Georg Wittmann
- Applicant: DEHN SE
- Applicant Address: DE Neumarkt i.d. OPF
- Assignee: DEHN SE
- Current Assignee: DEHN SE
- Current Assignee Address: DE Neumarkt i.d. OPf.
- Agency: Bodner & O'Rourke, LLP
- Agent Gerald T. Bodner; Christian P. Bodner
- Priority: DE 2019101200.7 2019.01.17
- International Application: PCT/EP2019/081584 2019.11.18
- International Announcement: WO2020/147999A 2020.07.23
- Date entered country: 2021-07-10
- Main IPC: H01T1/02
- IPC: H01T1/02 ; H01H85/055 ; H01H85/02 ; H01H85/165 ; H01T1/14 ; H01T2/02 ; H01T4/14 ; H01H9/32 ; H01H9/46

Abstract:
The invention relates to an overvoltage protection arrangement comprising a horn spark gap located in an insulating housing, with a deionization chamber for arc quenching, wherein the deionization chamber has a plurality of spaced quench plates and a trigger electrode is located in the ignition region of the horn spark gap, wherein a disconnecting device comprises a fusible link that is located in the region of the deionization chamber and is exposed there to a loading of a power follow-on current, wherein the fusible link holds a disconnecting element, preferably supported by spring force, in a first position, and on melting releases this disconnecting element in such a way that the disconnecting element adopts a second position wherein, on reaching the second position, an electrical connection to the trigger electrode is interrupted and the trigger electrode is thereby disconnected.
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