EP0876675A1 - Dispositif de commutation electrique - Google Patents

Dispositif de commutation electrique

Info

Publication number
EP0876675A1
EP0876675A1 EP97901046A EP97901046A EP0876675A1 EP 0876675 A1 EP0876675 A1 EP 0876675A1 EP 97901046 A EP97901046 A EP 97901046A EP 97901046 A EP97901046 A EP 97901046A EP 0876675 A1 EP0876675 A1 EP 0876675A1
Authority
EP
European Patent Office
Prior art keywords
contact
state
switching device
contact bridge
bridge
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
EP97901046A
Other languages
German (de)
English (en)
Other versions
EP0876675B1 (fr
Inventor
Reinhard Herbst
Bardo Koppmann
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
Original Assignee
Siemens 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
Priority claimed from DE19602118A external-priority patent/DE19602118C2/de
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP97901046A priority Critical patent/EP0876675B1/fr
Publication of EP0876675A1 publication Critical patent/EP0876675A1/fr
Application granted granted Critical
Publication of EP0876675B1 publication Critical patent/EP0876675B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/001—Means for preventing or breaking contact-welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts

Definitions

  • the invention relates to an electrical switching device with an electromagnetic system, with an arcing chamber, with fixed contacts, with a contact bridge with movable contacts, with a contact carrier with a window in which the contact bridge is held by a contact spring with the installation dimension C, with the OFF -State of the electromagnet system, the fixed contacts are at a distance ⁇ from the movable contacts and, when the electromagnet system is in the ON state, the contact spring experiences a pressure D, so that the contact carrier between the ON and OFF state and vice versa the path D + ⁇ covered.
  • a generic switching device can be found in DE 41 04 533 C2. If a short circuit occurs with this switching device in the ON state, then short-circuit current forces act on the contact bridge, which move the contact bridge in the open position. The contact spring is compressed to the block dimension and then the contact carrier is torn upwards. The forces that occur can have a destructive effect on the contact carrier.
  • the invention is therefore based on the object of providing an electrical switching device of the type mentioned above, in which destructive stresses on the contact carrier as a result of short-circuit current forces are avoided.
  • stops are provided on the arcing box which are at a distance A from the contact bridge in the OFF state such that in the event of a short circuit with the electromagnet system switched on, they were caused by the short-circuit current forces Opening movement of the Limit the contact bridge so that the contact spring is not compressed to its block dimension B.
  • FIG. 2 shows the contact system according to FIG. 1 in the ON state and
  • FIG. 3 shows the contact system according to FIG. 2 in the ON state when a short-circuit current occurs.
  • FIG. 1 shows a contact system of an electromagnetic switching device. It is accommodated in an arc chamber (not shown here in more detail) with extinguishing plates 1 and is composed essentially of fixed contacts 2, movable contacts 3 on a contact bridge 4, a contact carrier 5 with a window 6 and a contact spring 7.
  • the contact spring 7 presses the contact bridge 4 onto the lower edge of the window 6 and has an installation dimension of length C.
  • the movable contacts 3 are located at a distance ⁇ from the fixed contacts 2.
  • stops 8 are provided at a distance A from the latter, which are advantageously firmly connected to the arc chamber, e.g. are molded onto this.
  • the contact carrier 5 is moved by the magnet armature (not shown here) down the path D + O with respect to the ON state, with D being the pressure of the contact spring 7 in the ON state is designated.
  • the contact bridge 4 has the distance A + ⁇ from the stops 8.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

L'invention concerne un dispositif de commutation dans lequel on empêche une sollicitation destructive du support de contact (5) lors de l'apparition de forces de court-circuitage, à l'état de marche. Pour ce faire, on prévoit des butées (8) dans la boîte d'extinction d'arc, qui stoppent le mouvement d'ouverture du pont de contact (4) avant que la lame de contact (7) soit comprimée à bloc.
EP97901046A 1996-01-22 1997-01-16 Dispositif de commutation electrique Expired - Lifetime EP0876675B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97901046A EP0876675B1 (fr) 1996-01-22 1997-01-16 Dispositif de commutation electrique

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE19602118A DE19602118C2 (de) 1996-01-22 1996-01-22 Elektrisches Schaltgerät
DE19602118 1996-01-22
EP96112126 1996-07-26
EP96112126 1996-07-26
EP97901046A EP0876675B1 (fr) 1996-01-22 1997-01-16 Dispositif de commutation electrique
PCT/EP1997/000182 WO1997027605A1 (fr) 1996-01-22 1997-01-16 Dispositif de commutation electrique

Publications (2)

Publication Number Publication Date
EP0876675A1 true EP0876675A1 (fr) 1998-11-11
EP0876675B1 EP0876675B1 (fr) 1999-07-28

Family

ID=26022235

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97901046A Expired - Lifetime EP0876675B1 (fr) 1996-01-22 1997-01-16 Dispositif de commutation electrique

Country Status (5)

Country Link
US (1) US6054911A (fr)
EP (1) EP0876675B1 (fr)
CN (1) CN1068452C (fr)
DE (1) DE59700289D1 (fr)
WO (1) WO1997027605A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4395023B2 (ja) * 2003-11-04 2010-01-06 三菱電機株式会社 回路遮断器
US7839642B2 (en) 2008-04-04 2010-11-23 Liebert Corporation Heat-sink brace for fault-force support
CN101789332B (zh) * 2010-02-10 2012-10-31 湖北盛佳电器设备有限公司 具有机械式短路自锁功能的交流接触器
FR2974660B1 (fr) * 2011-04-27 2018-05-25 Legrand France Dispositif de contact electrique a coupure performante
CN103177884B (zh) 2011-12-26 2016-09-14 上海电科电器科技有限公司 低压电器的触头结构
JP6064223B2 (ja) * 2012-12-28 2017-01-25 パナソニックＩｐマネジメント株式会社 接点装置および当該接点装置を搭載した電磁継電器
WO2015090367A1 (fr) * 2013-12-17 2015-06-25 Siemens Aktiengesellschaft Module électronique de protection pour convertisseur hvdc

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4112275A (en) * 1973-03-26 1978-09-05 Siemens Aktiengesellschaft Contact structure for electrical switching apparatus
US4195212A (en) * 1977-06-06 1980-03-25 Eaton Corporation Contactor having higher fault current withstandability
US4132968A (en) * 1977-09-06 1979-01-02 Westinghouse Electric Corp. Current limiting circuit breaker with improved magnetic drive device
FR2454174A1 (fr) * 1979-04-09 1980-11-07 Merlin Gerin Contacteur a commande d'ouverture rapide sur defaut
SE424242B (sv) * 1980-10-30 1982-07-05 Asea Ab Elektromagnetisk manovrerad elkopplare
US4378542A (en) * 1981-10-30 1983-03-29 Amf Inc. Electromagnetic contactor
DE3824546A1 (de) * 1988-07-20 1990-01-25 Asea Brown Boveri Elektrischer leistungsschalter
JP2812810B2 (ja) * 1990-02-14 1998-10-22 三菱電機株式会社 開閉器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9727605A1 *

Also Published As

Publication number Publication date
EP0876675B1 (fr) 1999-07-28
DE59700289D1 (de) 1999-09-02
CN1205111A (zh) 1999-01-13
CN1068452C (zh) 2001-07-11
US6054911A (en) 2000-04-25
WO1997027605A1 (fr) 1997-07-31

Similar Documents

Publication Publication Date Title
DE3531710A1 (de) Durch zusammenbau von modulelementen realisierbare schaltvorrichtung mit veraenderlicher zusammensetzung
DE3607052A1 (de) Elektrisches schaltgeraet
EP0219449B1 (fr) Disposition de contact pour un disjoncteur à basse tension à cordon de courant flexible
WO1997027605A1 (fr) Dispositif de commutation electrique
DE4026425C1 (fr)
EP0896728A1 (fr) Appareil de commutation
DE2833497C2 (de) Elektrischer Lastschalter für Niederspannungsanlagen
EP1032942A1 (fr) Appareil de distribution muni d'un dispositif d'extinction d'arc
DE19723502C1 (de) Abgedichtete elektrische Schalteranordnung
EP1423862B1 (fr) Systeme de contacts de commutation comportant un dispositif destine a amplifier une force de contact s'exer ant entre des contacts de commutation
EP1042772A1 (fr) Dispositif extincteur d'arc destine a un appareillage de connexion
EP1053556B1 (fr) Declencheur de courant electromagnetique pour un disjoncteur electrique
DE4115092A1 (de) Elektromagnetisches schaltrelais fuer leiterplattenmontage
EP0736887B1 (fr) Assemblage de contacts électriques
EP0886878B1 (fr) Dispositif de commutation
DE952192C (de) Kontaktanordnung fuer Leistungsschalter
DE3810977C2 (de) Strombegrenzende Schalteinrichtung mit elektrodynamisch öffnenden Schaltstücken
DE19948695B4 (de) Niederspannungs-Leistungsschalter mit einem bewegbaren Kontaktträger mit Endlagen-Haltefeder
EP0168568B1 (fr) Sectionneur, en particulier sectionneur monocolonne, à pantographe
DE3103356C2 (fr)
EP0375087A1 (fr) Dispositif de contact avec pivot conducteur pour un levier de contact
DE4418921C2 (de) Trenneinrichtung für die elektrische Hausinstallation
DE8211786U1 (de) Elektrischer Schnappschalter
WO2001008184A1 (fr) Unite coupe-circuit et bouchon fusible avec element a guide de contact
DD216351A1 (de) Kontaktanordnung fuer elektrische schalter

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: 19980720

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR IT

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19981207

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

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): DE FR IT

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19990728

REF Corresponds to:

Ref document number: 59700289

Country of ref document: DE

Date of ref document: 19990902

ET Fr: translation filed
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
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20090320

Year of fee payment: 13

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

Ref country code: FR

Payment date: 20090120

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100930

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: 20100201

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: 20100803