WO2008080722A1 - Éclateur à haute puissance à symétrie de rotation, non hermétiquement étanche, encapsulé et résistant à la pression - Google Patents

Éclateur à haute puissance à symétrie de rotation, non hermétiquement étanche, encapsulé et résistant à la pression Download PDF

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Publication number
WO2008080722A1
WO2008080722A1 PCT/EP2007/063141 EP2007063141W WO2008080722A1 WO 2008080722 A1 WO2008080722 A1 WO 2008080722A1 EP 2007063141 W EP2007063141 W EP 2007063141W WO 2008080722 A1 WO2008080722 A1 WO 2008080722A1
Authority
WO
WIPO (PCT)
Prior art keywords
spark gap
annular support
trigger electrode
recess
outer housing
Prior art date
Application number
PCT/EP2007/063141
Other languages
German (de)
English (en)
Inventor
Arnd Ehrhardt
Michael Waffler
Stephan Hierl
Original Assignee
Dehn + Söhne Gmbh + Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dehn + Söhne Gmbh + Co. Kg filed Critical Dehn + Söhne Gmbh + Co. Kg
Priority to EP07847652A priority Critical patent/EP2106629A1/fr
Publication of WO2008080722A1 publication Critical patent/WO2008080722A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T2/00—Spark gaps comprising auxiliary triggering means
    • H01T2/02—Spark gaps comprising auxiliary triggering means comprising a trigger electrode or an auxiliary spark gap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel

Definitions

  • the invention relates to an encapsulated, pressure-resistant executed, non-hermetically sealed, rotationally symmetrical high-performance spark gap with two opposing main electrodes, a cylindrical metallic outer housing, optionally a trigger electrode and electrical connection contacts for the main electrodes according to the preamble of patent claim 1.
  • surge arresters on the basis of spark gaps according to the prior art, these are designed to be encapsulated in applications in the low-voltage range in order to avoid the environment-threatening blowing out of hot or even ionized gases.
  • the arresters are provided with additional triggering devices.
  • a trigger device requires isolation of the additional, generally loaded with high voltage further electrode.
  • the additional expenditure of space and the additional insulation materials also lead to a further limitation of the performance of such realized arrester.
  • the potential of the ignition electrode is likewise supplied via the pressure-resistant metallic sheath to the spark gap.
  • the local pressure-resistant jacket is made of one piece and it is used for the preparation of a simple forming process.
  • the waiver of an insulated implementation of the ignition potential leads in this variant, however, to an additional burden of insulation in the interior of the spark gap, since both electrodes must be isolated not only against each other, but also with respect to the entire housing.
  • the complex and voltage-resistant insulation in particular, the heat output from the spark gap This leads to an increased thermal load on the insulating parts, to long cooling times and to an enormous limitation of the space available for the spark gap. All of these disadvantages ultimately limit the performance of the spark gap.
  • the cylindrical outer housing is provided with at least one radially oriented opening in the form of a bore or recess, through which an electrical access to at least one of the electrodes located in the interior is provided. This may be at least one of the main electrodes and / or an access for a possibly necessary or intended trigger or ignition electrode.
  • an electrically insulated contact element In the bore or recess then an electrically insulated contact element, the respective opening sealing, insertable.
  • the electrically insulated contact element is therefore in non-conductive connection to the preferably metallic outer housing.
  • the spark gap can be mounted with the rotationally symmetrical parts and the metallic outer casing is kept tight and mechanically stable by crimping.
  • This tapping then ends either at the respective electrode or at a ausgestaltend provided conductive or semiconductive annular support member.
  • This supporting element can, for the purpose of contacting with a trigger electrode in connection, be realized, and is arranged in the interior of the outer housing, wherein the annular support member is in the space between the main electrodes, embedded in an insulating material.
  • the outer wall of the annular support member is substantially parallel to the housing wall running.
  • the opening is performed as a bore at least to the surface of the outer wall of the annular support member.
  • the annular support member increases the compressive strength of the overall arrangement in the region of the radially oriented opening or bore and at least compensates for the resulting weakening of the outer housing.
  • the metallic outer housing is formed in two parts screwed, wherein in at least one of the outer housing halves, the recess for electrical contacting is. This recess accommodates an insulating insert and the necessary electrical contact element.
  • a conductive annular support member standing in connection with the trigger electrode, arranged inside the outer housing, wherein the annular support member in the space between the main electrodes, embedded in an insulating material, and the recess is the desired Ensures access to the outer wall of the annular support member.
  • Fig. 1 shows an embodiment of the encapsulated, flameproof, non-hermetically sealed, rotationally symmetric high-performance spark gap with one-piece outer casing and radially oriented opening in the form of a bore for contacting a trigger electrode and
  • Fig. 2 is a view similar to that of FIG. 1, but starting from a two-piece, bolted metallic outer housing.
  • the spark gap shown in the schematic diagram in section according to FIG. 1 has a rotationally symmetrical structure, wherein after the assembly of the spark gap, the cylindrical outer housing 1 is drilled radially laterally with a defined drilling depth. This tapping ends at an annular support member 12 which is electrically connected to the trigger electrode 6.
  • the annular support member 12 is isolated from the main electrodes 2 and 3 and the outer casing 1 of the spark gap.
  • the insulation on the metallic contact 13 can additionally be glued if necessary and sealed in this way.
  • the hole can also be made before mounting in the outer housing 1, but here increases due to the positional dependence of the assembly effort.
  • the adjacent insulating parts then have in this embodiment to the inner metallic contact an opening which z. B. in axially symmetric parts as a circumferential gap or in an asymmetrical isolation part as a bore executable (not shown).
  • the main electrodes 2 and 3 are held in the embodiment of FIGS. 1 and 2 via insulating bushings 4 and 5 and have a protruding, outwardly oriented extension for electrical contacting.
  • the outer housing has a one-sided completely closed bottom, wherein one of the main insulated electrodes located on the bottom inside and can be electrically connected by a lateral, radially oriented opening instead of the usual frontal contact-.
  • FIG. 2 According to the illustration of FIG. 2 is assumed by a two-part outer casing 1.1 and 1.2, which is indirectly connected by a suitable thread directly or with the aid of a cap sleeve by screwing.
  • a recess 15 is introduced, which is placed so that the insulated electrical contact 13 can be carried out, which in turn is connected to the annular support member 12 and via this support member 12 with the trigger electrode 6 in connection.
  • the insulation for the electrical contact element 13 may be embodied here as a two-part insulating piece, which at the same time fixes the support element 12 and the trigger electrode 6.

Landscapes

  • Spark Plugs (AREA)

Abstract

L'invention concerne un éclateur à haute puissance à symétrie de rotation, non hermétiquement étanche, encapsulé et résistant à la pression, présentant deux électrodes principales opposées à distance l'une de l'autre, un boîtier extérieur métallique cylindrique, éventuellement une électrode d'amorçage, ainsi que des contacts de connexion électriques pour les électrodes principales. Selon l'invention, le boîtier extérieur cylindrique présente au moins une ouverture orientée dans le sens radial, sous forme de trou ou d'évidement, par laquelle un accès électrique à au moins une des électrodes situées à l'intérieur est créé. Un élément de contact isolé électriquement peut être introduit dans le trou ou l'évidement, de manière à rendre l'ouverture concernée étanche.
PCT/EP2007/063141 2007-01-04 2007-12-03 Éclateur à haute puissance à symétrie de rotation, non hermétiquement étanche, encapsulé et résistant à la pression WO2008080722A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07847652A EP2106629A1 (fr) 2007-01-04 2007-12-03 Éclateur à haute puissance à symétrie de rotation, non hermétiquement étanche, encapsulé et résistant à la pression

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102007001092 2007-01-04
DE102007001092.5 2007-01-04
DE102007015930.9 2007-04-02
DE102007015930A DE102007015930A1 (de) 2007-01-04 2007-04-02 Gekapselte, druckfest ausgeführte, nicht hermetisch dichte, rotationssymmetrische Hochleistungsfunkenstrecke

Publications (1)

Publication Number Publication Date
WO2008080722A1 true WO2008080722A1 (fr) 2008-07-10

Family

ID=39059377

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/063141 WO2008080722A1 (fr) 2007-01-04 2007-12-03 Éclateur à haute puissance à symétrie de rotation, non hermétiquement étanche, encapsulé et résistant à la pression

Country Status (3)

Country Link
EP (1) EP2106629A1 (fr)
DE (1) DE102007015930A1 (fr)
WO (1) WO2008080722A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2987212B1 (fr) 2013-02-20 2022-12-07 TechHold, LLC Protection contre les surtensions pour des systèmes d'alimentation électrique
WO2021237119A1 (fr) 2020-05-22 2021-11-25 Techhold, Llc Ensemble de protection contre les surtensions

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006128761A1 (fr) * 2005-05-30 2006-12-07 Dehn + Söhne Gmbh + Co. Kg Eclateur a haute performance encapsule, resistant a la pression, d'etancheite non hermetique et a symetrie de rotation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1515074A (en) * 1922-08-17 1924-11-11 E H Freeman Electric Company Lightning arrester
US2436845A (en) * 1943-08-17 1948-03-02 Nasa Coaxial spark gap
DE3889700D1 (de) 1987-08-28 1994-06-30 Eev Ltd Funkenstreckenvorrichtung.
DE19655119C2 (de) * 1996-02-10 2001-01-25 Dehn & Soehne Funkenstreckenanordnung
DE10008764A1 (de) 1999-03-04 2000-09-28 Phoenix Contact Gmbh & Co Überspannungsschutzeinrichtung
DE10018012B4 (de) 2000-02-22 2005-02-24 Dehn + Söhne Gmbh + Co. Kg Druckfest gekapselte Funkenstreckenanordnung zum Ableiten von schädlichen Störgrößen durch Überspannungen
DE10164025B4 (de) 2001-08-21 2005-08-25 Dehn + Söhne Gmbh + Co. Kg Gekapselter, Netzfolgestrom begrenzender Überspannungsableiter auf Funkenstreckenbasis
DE10338835B4 (de) * 2003-08-21 2016-06-02 Phoenix Contact Gmbh & Co. Kg Überspannungsschutzeinrichtung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006128761A1 (fr) * 2005-05-30 2006-12-07 Dehn + Söhne Gmbh + Co. Kg Eclateur a haute performance encapsule, resistant a la pression, d'etancheite non hermetique et a symetrie de rotation

Also Published As

Publication number Publication date
EP2106629A1 (fr) 2009-10-07
DE102007015930A1 (de) 2008-07-10

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