EP0976138A1 - Appareil de commutation electromagnetique - Google Patents

Appareil de commutation electromagnetique

Info

Publication number
EP0976138A1
EP0976138A1 EP98929199A EP98929199A EP0976138A1 EP 0976138 A1 EP0976138 A1 EP 0976138A1 EP 98929199 A EP98929199 A EP 98929199A EP 98929199 A EP98929199 A EP 98929199A EP 0976138 A1 EP0976138 A1 EP 0976138A1
Authority
EP
European Patent Office
Prior art keywords
contact
bridge support
contact bridge
armature
pressure spring
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
EP98929199A
Other languages
German (de)
English (en)
Other versions
EP0976138B1 (fr
Inventor
Markus Meier
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
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0976138A1 publication Critical patent/EP0976138A1/fr
Application granted granted Critical
Publication of EP0976138B1 publication Critical patent/EP0976138B1/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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2409—Electromagnetic mechanisms combined with an electromagnetic current limiting mechanism
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
    • H01H89/06—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device
    • H01H89/08—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device with both devices using the same contact pair
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
    • H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
    • H01H77/10—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening
    • H01H77/101—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening with increasing of contact pressure by electrodynamic forces before opening

Definitions

  • the invention relates to an electromagnetic
  • Switchgear with a pair of fixed contacts, a pair of fixed contact elements to which the fixed contacts are individually fastened, a movable contact element loaded with a contact pressure spring with a pair of movable contacts thereon which can be brought into and out of connection with the fixed contacts , a contact bridge support on which the movable contact element is held by means of the contact pressure spring, a first electromagnetic drive device for quick shutdown, with a first armature and a coil which is connected in series with one of the fixed contact elements and a second electromagnetic drive device for switching on and off of the load current with a second armature.
  • a generic electromagnetic switching device is known from DE 43 18 196 AI. With this electromagnetic switching device, load currents are switched and excessive currents, mainly short-circuit currents, are limited.
  • the first electromagnetic drive device is operated here as an auxiliary system which exerts a force on the movable contact element in the event of excessive currents and thus opens the contacts. This prevents the contacts from being in an undefined floating state due to electrodynamic forces, in which the contacts can weld.
  • Such sweat-free contactors are used in conjunction with a circuit breaker. For economic reasons, the contactor is usually equipped with a low breaking capacity compared to the circuit breaker. Its current limitation only supports the circuit breaker.
  • auxiliary agnetsy- stem of the contactor responds at a higher current than that of the circuit breaker. It is also required that the contacts are kept closed by the main magnet system in the event of a short circuit until they are separated from one another by the contactor's auxiliary magnet system. To meet these two requirements, larger magnet systems are required than for standard devices with the same switching capacity.
  • the invention has for its object to provide an electromagnetic switching device of the above type, in which a short-circuit shutdown takes place in connection with improved measures to prevent welding of the contacts.
  • the contact bridge carrier is displaceable in its longitudinal axis with respect to the second anchor, that a compression spring engages on the contact bridge carrier, via which the movement of the second anchor to the contact opening can be transmitted to the contact bridge carrier and that the movement of the first armature upon response of the first electromagnetic drive device to the contact bridge support is implemented in such a way that the contact pressure spring is compressed in a first phase and thereby the contact pressure is increased and at the same time the
  • Compression spring stores energy, by means of which the contact bridge carrier is pressed in a second phase in the direction causing the contact opening.
  • FIG. 2 shows a sectional illustration of the switching device according to FIG. 1 with a short-circuit current present
  • FIG 4 shows a sectional view of the switching device according to the invention shown in FIG 1 in the OFF state.
  • the contact system 2 arranged in the arc housing 5 comprises a movable contact element 6 with movable contacts 7 at its opposite end regions for making contact with a pair of fixed contacts 8, which are connected to a pair of fixed contact elements 9.
  • the movable contact element 6 is mounted in a window 10 of a contact bridge carrier 11 guided on the housing side by means of a contact pressure spring 12.
  • 1 shows the electromagnetic switching device 1 in the ON state, in which the contact bridge support 11 is in the lower position and the contact pressure spring 12 brings about the contacting of the movable contacts 7 with the opposite fixed contacts 8 via the movable contact element 6.
  • the lower end of the contact bridge support 11 is designed as a pin 13 which is guided in a bore 14 of a contact support plate 15.
  • the contact carrier plate 15 is connected to the armature 27 of the second electromagnetic drive device 4.
  • the contact bridge support 11 is axially displaceable in the bore 14 via the pin 13.
  • the movement in the direction of the drive device 4 located at the bottom in FIG. 1 acts on the contact bridge carrier 11 and the contact carrier plate 15 supporting compression spring 16.
  • a lever 17 acting as a transmission member is rotatably mounted by means of a bolt 18, the two arms 19 and 20 of which are supported on shoulders 21.
  • the first electromagnetic drive device 3 is arranged such that its armature 22, when triggered, actuates the lever 17 counterclockwise via a push pin 23 carried along.
  • the coil 24 of the first electromagnetic drive device 3 is connected in series with one of the fixed contact elements 9.
  • the switching device 1 is reset to its initial state according to FIG. 4 by switching off the second electromagnetic drive device 4.
  • the back pressure spring (not shown here) of the second electromagnetic drive device 4 at 17 pushed back by an elevation in the housing 26 over the edge 25, the spar 28 provided with the edge 25 bending laterally away.
  • the invention achieves in a simple manner that when a short circuit occurs, the contact pressure is increased in a first phase with the aid of an additional electromagnetic drive device 3, the contact pressure spring 12 and the compression spring 16 storing energy. In the subsequent second phase, after the contact bridge support 11 has been released, the energy stored in the springs 12, 16 is used to suddenly open the contacts 7 and 8.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

L'invention concerne un appareil de commutation électromagnétique (1) présentant un dispositif de commande électromagnétique (3) qui fait office de système magnétique auxiliaire et permet, lors de l'apparition d'un courant de court-circuit, d'augmenter la force de contact avant la rupture brutale des contacts (7, 8). Le dispositif de commande électromagnétique (3) actionne un levier (17) monté de façon rotative sur le support de pont de contact (11). Ce levier déplace le support de pont de contact (11) et comprime un ressort de pression de contact (12) ainsi qu'un autre ressort de pression (16).
EP98929199A 1997-04-18 1998-04-06 Appareil de commutation electromagnetique Expired - Lifetime EP0976138B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19716380 1997-04-18
DE19716380A DE19716380C1 (de) 1997-04-18 1997-04-18 Elektromagnetisches Schaltgerät
PCT/DE1998/000975 WO1998048436A1 (fr) 1997-04-18 1998-04-06 Appareil de commutation electromagnetique

Publications (2)

Publication Number Publication Date
EP0976138A1 true EP0976138A1 (fr) 2000-02-02
EP0976138B1 EP0976138B1 (fr) 2002-07-10

Family

ID=7827000

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98929199A Expired - Lifetime EP0976138B1 (fr) 1997-04-18 1998-04-06 Appareil de commutation electromagnetique

Country Status (6)

Country Link
US (1) US6150909A (fr)
EP (1) EP0976138B1 (fr)
JP (1) JP4056567B2 (fr)
CN (1) CN1092392C (fr)
DE (1) DE19716380C1 (fr)
WO (1) WO1998048436A1 (fr)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10246092B4 (de) * 2002-10-02 2004-11-11 Siemens Ag Elektromagnetisches Schaltgerät
CN1253912C (zh) * 2003-05-29 2006-04-26 刘平 电力开关器
JP4395023B2 (ja) * 2003-11-04 2010-01-06 三菱電機株式会社 回路遮断器
DE102004062266A1 (de) * 2004-12-23 2006-07-13 Siemens Ag Verfahren und Vorrichtung zum sicheren Betrieb eines Schaltgerätes
DE102004062269A1 (de) * 2004-12-23 2006-07-13 Siemens Ag Verfahren und Vorrichtung zum sicheren Betrieb eines Schaltgerätes
DE102004062270B4 (de) * 2004-12-23 2012-08-30 Siemens Ag Verfahren und Vorrichtung zum sicheren Betrieb eines Schaltgerätes sowie Schaltgerät
DE102004062267A1 (de) * 2004-12-23 2006-07-13 Siemens Ag Verfahren und Vorrichtung zum sicheren Betrieb eines Schaltgerätes
US7298236B2 (en) * 2005-04-27 2007-11-20 Jingzheng Chen Circuit breaker electromagnetic tripping device
DE102006011982B4 (de) * 2005-10-26 2009-04-02 Abb Ag Elektrisches Schaltgerät
DE102006036187A1 (de) * 2006-08-01 2008-02-07 Siemens Ag Schaltvorrichtung mit Betätigungselement
WO2008034467A1 (fr) * 2006-09-21 2008-03-27 Siemens Aktiengesellschaft Unité à commutateurs pour commuter au moins deux états de fonctionnement
DE102006055007A1 (de) * 2006-11-22 2008-05-29 Abb Ag Installationsschaltgerät mit einer Doppelunterbrechung
DE102006055382A1 (de) * 2006-11-23 2008-05-29 Siemens Ag Leitungsschutzschalter
US7518476B2 (en) * 2007-04-05 2009-04-14 Eaton Corporation Electrical switching apparatus and trip actuator reset assembly therefor
US7570139B2 (en) * 2007-04-05 2009-08-04 Eaton Corporation Electrical switching apparatus, and trip actuator assembly and reset assembly therefor
WO2009105916A1 (fr) * 2008-02-29 2009-09-03 Siemens Aktiengesellschaft Dispositif de commutation, procédé d'assemblage ou de fonctionnement d'un tel dispositif de commutation, et dispositif électrique comprenant ledit dispositif de commutation
DE102008016036A1 (de) * 2008-03-28 2009-10-01 Abb Ag Installationsschaltgerät mit einer Doppelunterbrechung
DE102009007586A1 (de) * 2009-02-05 2010-08-19 Saia-Burgess Dresden Gmbh Auslösevorrichtung, insbesondere für Leistungsschalter
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
US8476996B2 (en) * 2010-08-31 2013-07-02 Chih-Chuan Liang Bistable switching method and latching relay using the same
DE102011008831A1 (de) * 2011-01-19 2012-07-19 Abb Ag Istallationsschaltgerät
JP5585550B2 (ja) 2011-07-18 2014-09-10 アンデン株式会社 継電器
KR101201713B1 (ko) 2011-12-20 2012-11-15 엘에스산전 주식회사 전자접촉기의 보조접점 기구
KR101696954B1 (ko) * 2012-05-30 2017-01-16 엘에스산전 주식회사 전자 개폐장치 및 그 제조방법
CN103198943B (zh) * 2013-04-09 2015-06-03 浙江正泰电器股份有限公司 一种触头开距可按需放大的开关装置
JP6300157B2 (ja) * 2013-08-02 2018-03-28 パナソニックＩｐマネジメント株式会社 電磁継電器
DE102013114830A1 (de) * 2013-12-23 2015-06-25 Eto Magnetic Gmbh Elektromagnetische Stellvorrichtung
KR101622188B1 (ko) * 2014-09-26 2016-05-18 엘에스산전 주식회사 전자접촉기의 보조 접점기구
DE102014117489A1 (de) 2014-11-28 2016-06-02 Eaton Electrical Ip Gmbh & Co. Kg Schnellauslöseanordnung zum Trennen eines Strompfads in einem Schaltgerät
US10034704B2 (en) 2015-06-30 2018-07-31 Ethicon Llc Surgical instrument with user adaptable algorithms
KR101918237B1 (ko) * 2017-03-28 2018-11-13 엘에스산전 주식회사 고속스위치

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2408209A1 (fr) * 1977-11-08 1979-06-01 Telemecanique Electrique Contacteur electro-magnetique equipe d'un electro-aimant sensible aux surintensites pour provoquer la limitation et la coupure des courants excessifs
FR2454174A1 (fr) * 1979-04-09 1980-11-07 Merlin Gerin Contacteur a commande d'ouverture rapide sur defaut
EP0114231A1 (fr) * 1983-01-24 1984-08-01 Schaltbau Gesellschaft mbH Dispositif de protection contre la surintensité
EP0237607A1 (fr) * 1986-03-21 1987-09-23 Square D Company (Deutschland) Gmbh Contacteur
SE460812B (sv) * 1988-02-08 1989-11-20 Asea Brown Boveri Elkopplare
JP2812810B2 (ja) * 1990-02-14 1998-10-22 三菱電機株式会社 開閉器
DE4318196A1 (de) * 1993-06-01 1994-12-08 Kloeckner Moeller Gmbh Elektromagnetisches Schaltgerät

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9848436A1 *

Also Published As

Publication number Publication date
JP2001520798A (ja) 2001-10-30
EP0976138B1 (fr) 2002-07-10
DE19716380C1 (de) 1998-10-08
CN1242868A (zh) 2000-01-26
JP4056567B2 (ja) 2008-03-05
US6150909A (en) 2000-11-21
CN1092392C (zh) 2002-10-09
WO1998048436A1 (fr) 1998-10-29

Similar Documents

Publication Publication Date Title
EP0976138B1 (fr) Appareil de commutation electromagnetique
DE19602118C2 (de) Elektrisches Schaltgerät
EP0896728A1 (fr) Appareil de commutation
EP0466287B1 (fr) Disjoncteur avec un dispositif d'encliquetage indépendant du contact mobile
EP0326116A1 (fr) Disposition de contacts pour un relais
DE4026425C1 (fr)
EP0656641A2 (fr) Déclencheur pour disjoncteurs ou interrupteurs de protection
EP1334499A1 (fr) Dispositif de contact pour disjoncteurs de protection limiteurs de courant
EP0508041B1 (fr) Commande de commutation pour appareils électriques à moyenne tension
EP0237610A2 (fr) Relais électromagnétique
DE19740422B4 (de) Strombegrenzender Niederspannungs-Leistungsschalter
DE4234065C1 (de) Schaltgerät
EP0693220B1 (fr) Mecanisme de commutation electromagnetique pour appareils electriques de commutation de protection
DE10056821A1 (de) Kontaktanordnung für strombegrenzende Schutzschalter
EP0375087B1 (fr) Dispositif de contact avec pivot conducteur pour un levier de contact
EP1298693B1 (fr) Commutateur
DE3402741C2 (de) Vorrichtung zum Ein- und Ausschalten elektrischer Geräte
EP0143927A2 (fr) Dispositif pour le rappel du porte-contact d'un appareil de commutation électromagnétique, en particulier d'un commutateur de protection
DE2417236B2 (de) Schalterantrieb mit einem Linearmotor
DE10246092A1 (de) Elektromagnetisches Schaltgerät
DE2261288A1 (de) Schuetz mit kurzschlusschaltvermoegen
EP0035693A1 (fr) Mécanisme de commutation pour appareils d'installation électrique
AT217116B (de) Fehlerspannungsrelais
EP1203390A1 (fr) Appareil de commutation electromagnetique
EP0885448A1 (fr) Dispositif de commutation electromagnetique a guidage force

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: 19991005

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): FR IT

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

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

17Q First examination report despatched

Effective date: 20010827

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): FR IT

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

Effective date: 20030411

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 NON-PAYMENT OF DUE FEES

Effective date: 20050406

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

Ref country code: FR

Payment date: 20090424

Year of fee payment: 12

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20101230

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: 20100430