EP0689727A1 - Parasurtension a court-circuiteur exterieur - Google Patents

Parasurtension a court-circuiteur exterieur

Info

Publication number
EP0689727A1
EP0689727A1 EP94908274A EP94908274A EP0689727A1 EP 0689727 A1 EP0689727 A1 EP 0689727A1 EP 94908274 A EP94908274 A EP 94908274A EP 94908274 A EP94908274 A EP 94908274A EP 0689727 A1 EP0689727 A1 EP 0689727A1
Authority
EP
European Patent Office
Prior art keywords
spring clip
connecting wire
electrode
surge arrester
tabs
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
EP94908274A
Other languages
German (de)
English (en)
Other versions
EP0689727B1 (fr
Inventor
Gerhard Lange
Thomas Westebbe
Michael Bluhm
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to DE9421824U priority Critical patent/DE9421824U1/de
Publication of EP0689727A1 publication Critical patent/EP0689727A1/fr
Application granted granted Critical
Publication of EP0689727B1 publication Critical patent/EP0689727B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H01T1/00—Details of spark gaps
    • H01T1/14—Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure

Definitions

  • the invention is in the field of electrical components and can be used in the structural design of a gas-filled three-electrode surge arrester which is provided with an external short-circuit device.
  • a short-circuit device serves to protect the surge arrester against long-term loads;
  • Such a short-circuit device generally contains a construction element that can be melted at higher temperatures, with the aid of which the center electrode and one or both end electrodes are short-circuited.
  • a ring-like spring is clamped onto the central electrode and is provided with lateral arms. These two arms protrude up to the two end electrodes and are kept at a distance from the end electrodes by an insulating washer which is arranged between the center electrode and the spring.
  • the insulating washer is made of a heat-fusible material, so that the insulating washer melts in the event of long-term exposure and the ends of the two arms come into contact with the two end electrodes (US Pat. No. 4,984,125).
  • a two-armed spring clip is fastened centrally to the center electrode.
  • the two free ends of the arms of this spring clip lie isolated on the circumference of the end electrodes.
  • the spring clip serves both to design a short-circuit device and to design air spark gaps connected in parallel.
  • At the ends of the two arms of the spring clip there is an approximately 20 to 40 ⁇ m thick insulating layer for example, polyurethane paint applied.
  • the central part of the spring clip is connected to the radially projecting connecting wire of the central electrode (US Pat. No. 4,912,592).
  • a spring clip is also provided as an external short-circuit device.
  • the arms of the spring clip protrude axially from the end electrodes of the arrester and their ends lie against the end electrodes, ie axially, with the interposition of an insulating film.
  • this is provided in the middle with an opening in the form of an H-shaped punching, between the tabs of which the connecting wire of the center electrode is guided.
  • the spring clip is fixed to the connecting wire in the pretensioned state by means of the resilient tabs (WO 90/13904).
  • the invention has for its object to choose the design of the spring clip so that it can be easily assembled and that a safe contact to the Endl electrodes is guaranteed.
  • the spring clip is arched in such a roof-like manner and that the two arms of the spring clip enclose an obtuse angle between them and rest on the peripheral edge of the respective end electrode.
  • the spring clip can be provided with a sufficiently large pretension. Since the arms of the spring clip rest on the end electrodes in a punctiform manner, the insulating layer ensures a safe contact.
  • the security for a point-like seating can be increased by the fact that two tabs abutting the peripheral edge of the respective end electrode are formed at the ends of the arms of the spring hanger. This also ensures that the spring clip is secured against rotation.
  • Such a configuration of the spring clip is particularly suitable for those conductors in which the connecting wires of all electrodes run radially in the same direction.
  • the curvature of the spring clip is appropriately "" chosen so that the arms enclose an obtuse angle of about 110-150 'between them in the untensioned state.
  • the spring clip can be fixed to the center electrode or to its connecting wire or connecting pin in a simple manner in a material or, in particular, form-fitting manner.
  • the fixing also occurs with the aid of a the connecting wire of the center electrode pushed onto the crimp socket.
  • the spring clip is likewise provided with a bore in the area of the curvature and is fixed in the pretensioned state by means of the crimping bush.
  • the spring clip in the region of its curvature to form two resilient tabs with an H-shaped punch-out, the distance between the two tabs being smaller than the diameter of the connecting wire of the central electrode, and the spring clip using these tabs to clamp on the connecting wire in the pretensioned state.
  • an artificial drops of cloth or a drop of soft solder are deposited on one or both tabs at the point of contact with the connecting wire.
  • Figures 1 to 7 Three embodiments of the invention are shown in Figures 1 to 7.
  • Figures 1 and 2 show two views of a three-electrode
  • FIGS. 3 and 4 in two views a spring clip with
  • FIGS. 5 and 6 show a three-electrode arrester with a short-circuiting device, in which the connecting wires of the electrodes protrude radially in the same direction, and FIG. 7 shows an alternative fastening of the spring clip to the connecting wire.
  • the surge arrester according to FIGS. 1 and 2 consists in a known manner of the two end electrodes 1 and 2, the center electrode 3 and the two ceramic insulating bodies 4 and 5, which keep the electrodes at a distance.
  • the connecting wire 6, which protrudes radially upward, is welded to the center electrode.
  • the connecting wires 7 and 8, which run radially downward, are welded to the side of the two end electrodes 4 and 5.
  • the surge arrester is further provided with an external short-circuit device, which consists of the spring clip 20 and an insulating film 21 arranged between the spring clip and the end electrodes 1 and 2.
  • an external short-circuit device which consists of the spring clip 20 and an insulating film 21 arranged between the spring clip and the end electrodes 1 and 2.
  • a metal strip 20 is used to form the spring clip 20, which is provided with a centrally arranged, H-shaped, punched-out stamping 21.
  • tabs 22 and 23 are formed, the spacing A of which is smaller than the diameter D of the connecting wire 6 of the center electrode.
  • the sheet metal strip 20 according to FIG. 3 is bent according to FIG. 4 to form the spring clip in such a way that a roof-shaped curvature 24 is created.
  • the two arms 25 and 26 of the spring clip enclose an angle alpha of approximately 120 ⁇ .
  • the tabs 22 and 23 are elastically bent out of their rest position.
  • the edges of the tabs dig into the surface of the connecting wire 6, as a result of which the spring clip is fixed in a certain position in which the ends of the arms 25, 26 are under prestress.
  • the amount of preload depends on how far the spring clip with its curvature towards the
  • the spring clip can be secured against rotation by a soft solder drop or a plastic drop that is applied at the point of contact of the tabs with the connecting wire.
  • the connecting wire 6 for the central electrode and the connecting wires 9 and 10 for the end electrodes run radially in the same direction. So that in this case the spring belt 27 does not touch the connecting wires 9 and 10, its ends are provided with a cutout, as shown in FIG. 6. As a result, two tabs 28 and 29 are formed, which on the circumferential edge of the respective end electrode 1, 2 point to point. This configuration also represents an anti-rotation device.
  • FIG. 7 shows the fixing of a spring clip 30 to the connecting wire 6 by means of a crimp bushing 31, the spring clip being provided with a bore in the region of its curvature.

Landscapes

  • Thermistors And Varistors (AREA)
  • Fuses (AREA)

Abstract

Dans un parasurtension à trois électrodes dont l'électrode centrale (3) est pourvue d'un fil de connexion (6) radialement saillant et qui est pourvu d'un court-circuiteur extérieur, le court-circuiteur est constitué par un étrier élastique (20) à deux bras dont les bras s'étendent au-delà des extrémités libres des électrodes terminales dans le sens axial et reposent sur la périphérie de l'électrode terminale correspondante (1, 2), une feuille isolante (21) étant située entre l'arête périphérique des électrodes et les bras de l'étrier élastique. L'étrier élastique (20) présente une courbure (24) en forme de toit et est pourvu dans la zone de cette courbure d'un passage qui sert à fixer l'étrier élastique au fil de connexion (6) de l'électrode centrale (3).
EP94908274A 1993-03-17 1994-02-25 Limiteur de haute tension avec dispositif de court circuit Expired - Lifetime EP0689727B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9421824U DE9421824U1 (de) 1993-03-17 1994-02-25 Überspannungsableiter mit äußerer Kurzschlußeinrichtung

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4309331A DE4309331A1 (de) 1993-03-17 1993-03-17 Überspannungsableiter mit äußerer Kurzschlußeinrichtung
DE4309331 1993-03-17
PCT/DE1994/000217 WO1994022191A1 (fr) 1993-03-17 1994-02-25 Parasurtension a court-circuiteur exterieur

Publications (2)

Publication Number Publication Date
EP0689727A1 true EP0689727A1 (fr) 1996-01-03
EP0689727B1 EP0689727B1 (fr) 1997-07-09

Family

ID=6483576

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94908274A Expired - Lifetime EP0689727B1 (fr) 1993-03-17 1994-02-25 Limiteur de haute tension avec dispositif de court circuit

Country Status (6)

Country Link
US (1) US5644465A (fr)
EP (1) EP0689727B1 (fr)
CN (1) CN1042878C (fr)
DE (2) DE4309331A1 (fr)
ES (1) ES2105657T3 (fr)
WO (1) WO1994022191A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19622461B4 (de) * 1996-05-24 2005-04-21 Epcos Ag Gasgefüllter Überspannungsableiter mit äußerer Kurzschlußeinrichtung
DE19708651A1 (de) * 1997-02-21 1998-09-03 Siemens Ag Gasgefüllter Überspannungsableiter mit äußerer Kurzschlußeinrichtung
EP1916875B1 (fr) * 2005-09-23 2010-11-24 Eberspächer catem GmbH & Co. KG Elément d'un dispositif de chauffage produisant de la chaleur
US7974063B2 (en) * 2007-11-16 2011-07-05 Corning Cable Systems, Llc Hybrid surge protector for a network interface device
DE102008062491A1 (de) * 2008-12-16 2010-06-17 Epcos Ag Überspannungsableiter mit einer Kurzschlusseinrichtung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN170586B (fr) * 1987-01-07 1992-04-18 Samhwa Electric Ind Co
GB2205992B (en) * 1987-05-01 1991-07-17 Dubilier Plc Gas-filled surge arrestor
FR2625377A1 (fr) * 1987-12-23 1989-06-30 Pendar Sarl Parafoudre de surete
JPH0227694U (fr) * 1988-08-10 1990-02-22
GB2230900A (en) * 1989-04-24 1990-10-31 Semitron Cricklade Ltd Electrical components
US5027100A (en) * 1990-02-12 1991-06-25 Porta Systems Corp. Gas tube fail safe device for telephone protector modules
US4910489A (en) * 1989-05-01 1990-03-20 Porta Systems Corp. Gas tube fail-safe device for telephone protector modules
MX172972B (es) * 1989-05-01 1994-01-26 Porta Systems Corp Dispositivo de autoajuste de fallas en el tubo de gas para modulos protectores de telefonos
US5029302A (en) * 1990-08-29 1991-07-02 Illinois Tool Works Fail safe gas tube

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9422191A1 *

Also Published As

Publication number Publication date
DE59403317D1 (de) 1997-08-14
DE4309331A1 (de) 1994-09-22
EP0689727B1 (fr) 1997-07-09
WO1994022191A1 (fr) 1994-09-29
ES2105657T3 (es) 1997-10-16
US5644465A (en) 1997-07-01
CN1121378A (zh) 1996-04-24
CN1042878C (zh) 1999-04-07

Similar Documents

Publication Publication Date Title
DE4437122C2 (de) Überspannungsschutzstecker
EP0575783B1 (fr) Pièce électrique
DE19605252B4 (de) Oberflächenmontierbare elektrische Mikrominiatur-Schmelzsicherung
EP1821379B1 (fr) Paratonnerre rempli de gaz doté d'un dispositif de court-circuit externe
CH688564A5 (de) Gekapselter elektrischer Zuender mit integriertem Ueberspannungsableiter fuer einen Gasgenerator.
DE3912189C2 (fr)
EP0877456A1 (fr) Protecteur contre surtensions
EP0169356B1 (fr) Dispositif semiconducteur à commutation résistant aux changements de charge
WO1999001880A1 (fr) Element actif pyrotechnique
EP0689727B1 (fr) Limiteur de haute tension avec dispositif de court circuit
DE10162916A1 (de) Federbügel, Überspannungsableiter mit dem Federbügel und Anordnung eines Überspannungsableiters
DE1961042A1 (de) Verfahren und Vorrichtung zum Kontaktieren eines Halbleiterkoerpers
DE19505387A1 (de) Druckkontaktgehäuse für Halbleiterbauelemente
WO1993023862A1 (fr) Dispositif pour la mise en circuit et hors circuit d'un consommateur electrique, en particulier pour instruments de controle sur un tableau de bord d'un vehicule automobile
EP1234361A2 (fr) Dispositif de protection contre les surtensions charge de gaz et dote de connexions d'electrodes sous forme de brides de type bandes
DE2505871A1 (de) Elektrischer widerstand mit schmelzsicherung
DE19622461B4 (de) Gasgefüllter Überspannungsableiter mit äußerer Kurzschlußeinrichtung
DE9421824U1 (de) Überspannungsableiter mit äußerer Kurzschlußeinrichtung
WO2005117219A1 (fr) Éliminateur de surtension
DE3743614A1 (de) Leerlauf-fuehlschalter fuer einen verbrennungsmotor
DE7438711U (de) AnschluBkontakt
DE29702309U1 (de) Gasgefüllter Überspannungsableiter mit zwei napfartigen Elektroden
EP1378028B1 (fr) Fiche de connexion
DE2531291B2 (de) Elektrischer Schichtwiderstand mit Schmelzsicherung für stehenden Einbau in gedruckte Schaltungen
DE19751113A1 (de) Magnetventil

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19950829

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE ES FR GB LI

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19960916

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE ES FR GB LI

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59403317

Country of ref document: DE

Date of ref document: 19970814

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: SIEMENS SCHWEIZ AG

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19970916

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2105657

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: E. BLUM & CO. PATENTANWAELTE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: SIEMENS AKTIENGESELLSCHAFT TRANSFER- EPCOS AG * SI

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20030131

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20030203

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20030219

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20030228

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20030311

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040225

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040226

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040229

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040229

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040901

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040225

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041029

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20040226