EP3111521A1 - Élément de protection contre les surtensions - Google Patents

Élément de protection contre les surtensions

Info

Publication number
EP3111521A1
EP3111521A1 EP15703057.8A EP15703057A EP3111521A1 EP 3111521 A1 EP3111521 A1 EP 3111521A1 EP 15703057 A EP15703057 A EP 15703057A EP 3111521 A1 EP3111521 A1 EP 3111521A1
Authority
EP
European Patent Office
Prior art keywords
electrode
protection element
overvoltage protection
gas discharge
insulating body
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP15703057.8A
Other languages
German (de)
English (en)
Other versions
EP3111521B1 (fr
Inventor
Eduard DORSCH
Frank Werner
Peter Bobert
Thomas Westebbe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDK Electronics AG
Original Assignee
Epcos AG
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 Epcos AG filed Critical Epcos AG
Publication of EP3111521A1 publication Critical patent/EP3111521A1/fr
Application granted granted Critical
Publication of EP3111521B1 publication Critical patent/EP3111521B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/16—Overvoltage arresters using spark gaps having a plurality of gaps arranged in series
    • 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
    • H01T1/00—Details of spark gaps
    • H01T1/20—Means for starting arc or facilitating ignition of spark gap

Definitions

  • the present invention relates to a
  • a proposed overvoltage protection element preferably a surge arrester, for example a
  • Gasabieiter includes a first electrode, a second electrode, and a third electrode.
  • Electrode and a gas discharge space which is arranged between the first electrode and the second electrode, wherein the overvoltage protection element a
  • Gas discharge space is electrically isolated from the first electrode and the second electrode.
  • Gas discharge space is preferably a contiguous gas discharge space.
  • the overvoltage protection element is furthermore preferably designed to discharge a gas in the gas discharge space and thus to form an electrically conductive
  • Gas discharge space for discharging a gas for example a noble gas, provided for reducing an overvoltage. Furthermore, the overvoltage protection element
  • an electronic component before the
  • the overvoltage protection element is preferably designed such that a arc voltage of the overvoltage protection element, which, for example, as a result of a on the
  • a follow-on current or follow-on current may in particular designate a current between the first electrode and the second electrode which, after the ignition of one in the
  • the follow-on current can cause damage in particular in the electronic component or other electrical networks or networks, in particular if they have a particularly low internal electrical resistance.
  • a follow - on current can be set in that, after the decay of one of the electrodes of the Overvoltage protection component applied overvoltage
  • Arc forms and this light floor is maintained for a certain time. For example, if a network ⁇ or operating voltage of the electronic component is smaller than the arc voltage, deletes the
  • Another aspect of the invention relates to an electronic component with the overvoltage protection element.
  • the overvoltage protection element is set up to protect the electronic component from overvoltages.
  • the first electrode in plan view of the overvoltage protection element viewed at a constant distance.
  • Overvoltage protection element for example, compared to a conventional overvoltage protection element can be increased, since the electrical resistance between the first electrode and the second electrode by the coaxial or concentric geometry of the first and the second electrode and the provision of the intermediate electrode structure,
  • the second electrode and / or the intermediate electrode structure is ring-like
  • the second electrode and the intermediate electrode structure may be arranged concentrically with the first electrode.
  • This concentricity preferably designates the arrangement of said components in or along a common center, wherein the individual components may have different distances or radii from the center.
  • the center designates, for example, in supervision of the
  • Overvoltage protection element views a center of gravity or center of mass thereof.
  • the electrical resistance between the first electrode and the second electrode can be increased, in view of a multiplicity of possible ignition points or ignition locations between the intermediate electrode structure and the electrodes, such that the arc voltage of the arc Overvoltage protection element also increased.
  • the electrical resistance between the first electrode and the second electrode can be increased, in view of a multiplicity of possible ignition points or ignition locations between the intermediate electrode structure and the electrodes, such that the arc voltage of the arc Overvoltage protection element also increased.
  • Gas discharge by an overvoltage - a current flow in at least part of the gas discharge space, for example, between the first electrode and the
  • Main axis preferably passes through the center described above.
  • the first electrode is a central electrode of the overvoltage protection element, wherein the second electrode and the inter-electrode structure are disposed adjacent to the first electrode.
  • Electrode and the intermediate electrode structure are Electrode and the intermediate electrode structure.
  • the first electrode viewed in plan view of the overvoltage protection element, the first electrode arranged circumferentially.
  • the arc combustion voltage of the overvoltage protection element as described above, can be increased.
  • the first electrode and the second electrode are
  • the first electrode is according to this embodiment
  • Overvoltage protection element arranged.
  • Gas discharge space is.
  • a gas discharge space is.
  • Discharge states of the arranged in the gas discharge space gas from one subspace can affect the next subspace and / or that the subspaces on pressure, temperature or interact with the ionization state of the gas.
  • This embodiment can also improve the follow current quenching behavior of the overvoltage element by an increased arc firing voltage.
  • the arrangement of the interelectrode structure, as described above, can be accompanied by an aimed higher arc burning voltage, also with an increase of
  • Ignition voltage of the overvoltage protection element be connected, since the electrical resistance of the ignition path increases by the subdivision into subspaces or partial discharges.
  • the ignition voltage preferably does not increase as much by the gas-permeable connected subspaces as strongly as when the overvoltage protection element is connected, for example, only by a series connection or stringing together of
  • the first electrode, the intermediate electrode structure and the second electrode are arranged equidistant from each other. This embodiment is advantageous in terms of the formation of a gas discharge in the event of an overvoltage between the electrodes.
  • first and the second electrode are arranged axially offset from one another. This configuration and / or geometry can advantageously facilitate an electrical insulation of the first electrode and the second electrode from each other.
  • Electrode body is preferably annular or annular. Furthermore, the electrode bodies are expediently separated from one another electrically.
  • Electrode body in each case annular or ring-like
  • the inner and the outer electrode body are arranged axially offset from one another. This configuration and / or geometry, however, can advantageously with an electrical insulation of the inner
  • Electrode body and the outer electrode body are Electrode body and the outer electrode body
  • the first electrode, the inner electrode body, the outer electrode body, and the second electrode are in this order
  • Overvoltage protection element on an insulation structure which has at least one radial contact surface, which in turn rests against a radial surface or radial contact surface of the first and / or second electrode. Every radial
  • the contact surface preferably extends along a direction defined by the main axis, such that
  • the abutment surfaces mentioned are preferably designed to prevent the movement of components of the abutting component
  • Said axial contact surface is preferably oriented such that a surface normal of this surface is oriented parallel to the main axis of the overvoltage protection element.
  • Rotational symmetry of the insulating body may preferably, for example, except for minor deviations
  • the investment stage of the first insulation body is applied to the inner electrode body.
  • the investment stage of the second insulation body is applied to the outer electrode body.
  • Insulating body ring-shaped and has a
  • Isolation body arranged axially offset from the first electrode.
  • the first defines
  • Insulating body the axial displacement of the inner and outer electrode body from each other.
  • the first defines
  • Isolation body the radial distance of the inner
  • Electrode body of the first electrode is Electrode body of the first electrode.
  • the second defines
  • the second defines
  • Isolation body the radial distance of the outer
  • Electrode body of the second electrode In a preferred embodiment defines the
  • Insulation structure for example on the arrangement of the first insulating body and the second insulating body, the radial distance of the inner electrode body and the outer electrode body.
  • electrical insulation of the first electrode, the inner electrode body, the outer electrode body and the second electrode can advantageously be facilitated from one another.
  • Insulating body to the electrodes or the
  • Electrode body of the second electrode each between 0.5 mm and 0.8 mm.
  • FIG. 1 shows at least part of a cross-section of an overvoltage protection element according to an exemplary embodiment
  • FIG. 2 shows a schematic plan view of at least one part of an overvoltage protection element.
  • FIG. 1 shows a cross section of a
  • the overvoltage protection element 100 has a housing 20.
  • the housing 20 is preferably electrically insulating.
  • the overvoltage protection element 100 is preferably for
  • the overvoltage protection element 100 has a first electrode 1.
  • the first electrode 1 is preferably a central one Electrode or center electrode.
  • Overvoltage protection element 100 also has a
  • the overvoltage protection element 100 furthermore has a second electrode 2.
  • the first electrode 1 and the second electrode 2 are preferably main electrodes of the overvoltage protection element 100.
  • the second electrode 2 is, viewed in a top view of the overvoltage protection element 100 (see Figure 2), concentric with the first
  • Electrode 1 or the first electrode 1 arranged circumferentially (see Figure 2).
  • the second electrode 2 is expediently furthermore insulated electrically from the first electrode 1.
  • the second electrode 2 is preferably designed annular.
  • the overvoltage protection element can be used for electrical
  • the overvoltage protection element 100 furthermore has a gas discharge space 10.
  • the gas discharge space 10 is arranged between the first electrode 1 and the second electrode 2.
  • the gas discharge space 10 is preferably formed or defined by an axial overlap of the first electrode 1 and the second electrode 2.
  • the first electrode 1 and the second electrode 2 are arranged axially offset from one another.
  • the intermediate electrode structure 3 has an axial region in which this with the first
  • the overvoltage protection element 100 also has a
  • Intermediate electrode structure 3 is arranged in the gas discharge space 10.
  • the intermediate electrode structure 3 preferably runs around the first electrode 1 at a constant distance.
  • the intermediate electrode structure 3 comprises an inner
  • the intermediate electrode structure 3 further includes an outer electrode body 5.
  • the intermediate electrode structure 3 may be further, for example, concentrically arranged and electrically spaced from each other
  • Electrode body 4 and the outer electrode body 5 are, viewed in plan view of the overvoltage protection element 100, preferably concentric with the first electrode 1 and / or the second electrode 2 or for example the first
  • Electrode 1 arranged circumferentially.
  • the first electrode 1, the inner electrode body 4, the outer electrode body 5 and the second electrode 2 are preferably in this
  • the overvoltage protection element 100 also has a
  • Isolation structure 6 on.
  • the insulating structure 6 is concentric or coaxial with the first electrode 1
  • the insulation structure 6 has a first one
  • the first insulating body 7 is designed like a ring.
  • the first insulating body 7 has a recess 17 into which the first electrode 1 extends.
  • the insulation structure 6 furthermore has a second insulation body 8.
  • the second insulating body 8 is arranged offset from the first electrode 1 in such a way that the said components do not axially overlap.
  • the inner electrode body 4 and the outer electrode body 5 of the inter-electrode structure 3 and the second electrode 2 are concentrically arranged around the first electrode 1 and axially offset therefrom. Due to the arrangement of the intermediate electrode structure 3 of the
  • the first insulating body 7 has a radial bearing surface 14, which the first insulating body 7 and the annular body thereof on an inner side
  • the first insulating body 7 rests on a radial outer surface (not explicitly marked) of the first electrode 1.
  • the second insulating body 8 has a radial contact surface 13, which the second insulating body 8 at a
  • the first insulation body 7 also has an inner conditioning stage 15.
  • the contact stage 15 has a radial contact surface 11 and, in order to form the step, an axial bearing surface which is not explicitly marked.
  • the second insulation body 8 has an outer conditioning stage 16.
  • the plant stage 16 has a radial bearing surface 12 and, to form the step, also an axial bearing surface (not explicitly marked) on.
  • the insulation structure 6, in particular the first insulation body 7 and the second insulation body 8, preferably define the distances of the first electrode 1, the second electrode 2 and the intermediate electrode structure 3 for an electrical connection via the abutment surfaces and abutment stages
  • the first insulating body 7 preferably defines the axial offset of the inner and outer electrode bodies 4, 5 and the radial distance of the inner electrode body 4 from the first electrode 1 via the contact surfaces 11, 14 and / or the contact stages 15.
  • the second insulating body 8 defines the axial offset of the inner and outer electrode body 4, 5 and the radial distance of the outer electrode body 5 from the second electrode 2 via the abutment surfaces 12, 13 and / or the abutment steps 16.
  • the insulation structure 6 defines, for example, the arrangement of the first Insulating body 7 and the second insulating body 8, the radial distance (in Figure 1 labeled A) of the inner electrode body 4 and the outer electrode body 5.
  • the inner electrode body 4 can be inserted in an assembly of the overvoltage protection element in the first insulating body 7 and / or jammed with this or vice versa, so that the radial distance to
  • Example of the electrical insulation between the inner electrode body 4 and the first electrode 1 is set. Furthermore, the second insulating body 8
  • Electrode body 5 to the inner electrode body 4 and the second electrode 2 is defined or fixed.
  • Insulation structure 6 preferably with the first electrode 1, the intermediate electrode structure 3 and the second electrode 2 in contact without being mechanically fixedly connected to said components.
  • the first electrode 1, the inner electrode body 4, the outer electrode body 5 and the second electrode 2 are preferably spaced or arranged equidistant from each other radially (ie horizontally in FIG. 1) in the concentric arrangement.
  • the stated equidistant distances can each be in the range of 0.5 mm to 0.8 mm.
  • Electrode body 5 deviate from the second electrode 2 from each other.
  • the overvoltage protection element 100 and / or the said components thereof are at least substantially rotationally symmetrical, for example, to the main axis, designed.
  • Figure 2 shows schematically a plan view of the
  • Overvoltage protection element 100 or to the first electrode 1, the second electrode 2 and the
  • the arcs may occur as a result of, for example, between the electrodes 1, 2 to the overvoltage protection element 100
  • Arc burning voltage of the overvoltage protection element 100 can be increased.
  • Overvoltage protection element 100 is not concentric or coaxial as described above, but with a linear Arrangement for example of the first electrode, the

Landscapes

  • Thermistors And Varistors (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

L'invention concerne un élément de protection contre les surtensions (100). Ledit élément comporte une première électrode (1), une deuxième électrode (2) et un espace de décharge gazeuse (10). L'espace de décharge gazeuse (2) est disposé entre la première électrode (1) et la deuxième électrode (2). L'élément de protection contre les surtensions (100) comporte une structure d'électrode intermédiaire (3), qui est disposée dans l'espace de décharge gazeuse (10) et qui est isolée électriquement de la première et de la deuxième électrode (1, 2).
EP15703057.8A 2014-02-25 2015-02-03 Élément de protection contre les surtensions Active EP3111521B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014102459.1A DE102014102459A1 (de) 2014-02-25 2014-02-25 Überspannungsschutzelement
PCT/EP2015/052171 WO2015128159A1 (fr) 2014-02-25 2015-02-03 Élément de protection contre les surtensions

Publications (2)

Publication Number Publication Date
EP3111521A1 true EP3111521A1 (fr) 2017-01-04
EP3111521B1 EP3111521B1 (fr) 2019-08-28

Family

ID=52462312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15703057.8A Active EP3111521B1 (fr) 2014-02-25 2015-02-03 Élément de protection contre les surtensions

Country Status (6)

Country Link
US (1) US10211603B2 (fr)
EP (1) EP3111521B1 (fr)
JP (1) JP6218962B2 (fr)
CN (1) CN106030940B (fr)
DE (1) DE102014102459A1 (fr)
WO (1) WO2015128159A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016101728A1 (de) * 2016-02-01 2017-08-03 Epcos Ag Ableiter zum Schutz vor Überspannungen
CN109038222B (zh) * 2018-07-30 2019-11-12 华格电子（昆山）有限公司 真空环境下具有插拔功能的主动型过电压保护间隙
DE102018118898B3 (de) 2018-08-03 2019-10-24 Phoenix Contact Gmbh & Co. Kg Halteanordnung und Anordnung von mindestens zwei Stapelfunkenstrecken
DE102018118906B3 (de) * 2018-08-03 2019-10-17 Phoenix Contact Gmbh & Co. Kg Überspannungsschutzgerät

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2346174B2 (de) * 1973-09-13 1977-04-07 Siemens AG, 1000 Berlin und 8000 München Ueberspannungsableiter
JPS59148091U (ja) 1983-03-23 1984-10-03 株式会社白山製作所 ガス入放電管形多極避雷器
JP2002246141A (ja) 2001-02-14 2002-08-30 Sankosha Corp アレスタ装置
JP3940431B2 (ja) 2004-12-06 2007-07-04 アレイプロトテック株式会社 避雷装置
DE102005036265A1 (de) * 2005-08-02 2007-02-08 Epcos Ag Funkenstrecke
KR100817485B1 (ko) * 2007-08-28 2008-03-31 김선호 방전제어전극이 구비된 방전소자 및 그 제어회로
DE102008016322A1 (de) * 2008-03-28 2009-10-01 Khs Ag Vorrichtung zum Abblasen von Flaschenböden
DE202008016322U1 (de) * 2008-12-10 2009-02-26 Leutron Gmbh Überspannungsableiter
WO2011148780A1 (fr) * 2010-05-27 2011-12-01 岡谷電機産業株式会社 Tube de décharge
US8947852B2 (en) * 2011-07-07 2015-02-03 Kemet Electronics Corporation Integrated EMI filter and surge protection component
DE102011108858A1 (de) 2011-07-28 2013-01-31 Epcos Ag Elektrischer Drei-Elektroden-Überspannungsableiter
US9762035B2 (en) * 2011-09-24 2017-09-12 Epcos Ag Multi-step tube of a ceramic material and gas discharge tube made of the same
CN102882130B (zh) * 2012-09-27 2014-05-21 中国电力科学研究院 一种三电极触发开关

Also Published As

Publication number Publication date
EP3111521B1 (fr) 2019-08-28
JP6218962B2 (ja) 2017-10-25
CN106030940B (zh) 2018-03-13
CN106030940A (zh) 2016-10-12
US10211603B2 (en) 2019-02-19
JP2017510943A (ja) 2017-04-13
WO2015128159A1 (fr) 2015-09-03
DE102014102459A1 (de) 2015-08-27
US20170077678A1 (en) 2017-03-16

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