EP0829092B1 - Commutateur electromagnetique - Google Patents

Commutateur electromagnetique Download PDF

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Publication number
EP0829092B1
EP0829092B1 EP96914084A EP96914084A EP0829092B1 EP 0829092 B1 EP0829092 B1 EP 0829092B1 EP 96914084 A EP96914084 A EP 96914084A EP 96914084 A EP96914084 A EP 96914084A EP 0829092 B1 EP0829092 B1 EP 0829092B1
Authority
EP
European Patent Office
Prior art keywords
contact bridge
switching device
contact
bridge carrier
electromagnetic switching
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.)
Expired - Lifetime
Application number
EP96914084A
Other languages
German (de)
English (en)
Other versions
EP0829092A1 (fr
Inventor
Peter Donhauser
Johann Drexler
Wilhelm Holzer
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 EP0829092A1 publication Critical patent/EP0829092A1/fr
Application granted granted Critical
Publication of EP0829092B1 publication Critical patent/EP0829092B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • H01H77/06—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 electromagnetic opening
    • 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 electromagnetic Switchgear with an electromagnet for operational Switching currents in the load range and with one in series switched quick release to protect against welding of fixed contacts and moving contacts in the overload area, with a switching chamber, with an arcing chamber with Extinguishing sheets and with a contact bridge carrier.
  • a generic electromagnetic switching device is off known from DE 37 13 412 A1.
  • the contact bridge carrier will here by means of a rocker arm opposite to the contact bridge carrier Contactor magnets laterally offset operated.
  • the electromagnetic contactor drive and the Quick releases are on both sides of the longitudinal central axis of the Contact bridge carrier arranged in parallel next to each other.
  • the the contact spring causing the contact pressure is supported against the case back. It will have a high short circuit breaking capacity by providing appropriately generously dimensioned Arc chambers reached in the for attachment provided lower housing part. However, this is Execution associated with a relatively large volume.
  • the contactor magnet can be moved with its movable part guided yoke attached, of which a plunger in Direction of actuation of the contactor magnet against a switching rocker protrudes through which the contact bridge support can be actuated is.
  • the contactor magnet is coupled to the contact bridge carrier relatively complex.
  • the necessary for this Elements for power transmission are the number of starts correspondingly often exposed to stress and can increase the risk of failure of the switch.
  • the electrical switch disclosed in DE 41 04 533 C2 is also generic. This essentially exists of an arc housing and one coupled to it Operating or operating mechanism housing in which the Electromagnet and the quick release in parallel next to each other are arranged.
  • the quick release is in the middle of the contact bridge support arranged, i.e. the longitudinal center line of his Percussion pin for actuating the contact system is also flush that of the contact bridge support.
  • the electromagnet includes essentially a fixed iron core, a movable one Iron core and a coil. On the movable iron core is a transmission component attached, the movement of the movable iron core, i.e.
  • the invention is therefore based on the object of an electromagnetic To create switching device of the type mentioned above, a simple switching mechanism over the electromagnet and thus for switching nominal currents high reliability and durability (e.g. 10 million) guaranteed without the protection against welding Overflow in the overload area by the quick release is impaired.
  • this is solved by that the electromagnet is arranged in the center of the contact bridge carrier and is directly coupled to it, and that the Quick release via a rocker on the moving contact works.
  • This solution takes advantage of the fact that the switching frequency during the service life of the switching device for switching currents within the nominal range is higher than that of the quick release to protect against Overload currents. Accordingly, the stresses in the Circuitry involved in the nominal current range much more often and therefore larger.
  • a direct coupling of the Electromagnets on the contact bridge carrier is therefore advantageous. For the comparatively less frequent switching of overcurrents can be operated by the Quick triggers are made using a rocker.
  • a switching device with a particularly small construction volume is achieved if the quick release and the switching chamber in parallel are arranged side by side.
  • the electromagnetic switching device 1 has an electromagnetic one Drive for operational switching of currents in the Load range and a quick release in line with it for protection against currents in the overload range. It also points out a switching chamber 4 with fixed contacts 5, with movable Contacts 6, with a quenching chamber 7 with quenching plates and one Contact bridge carrier 8, to the center in the following Space an electromagnet 9, 10, 11 as a contactor magnet is arranged, the axes in the direction of movement of the Contact bridge carrier 8 and the electromagnet 9,10,11 with each other swear.
  • the electromagnet which essentially consists of a yoke 9, a coil 10 and an armature 11 is via its anchor 11 directly to the contact bridge support 8 connected, which reduces the volume of the switching device and brings a cost saving.
  • the also on the Contact bridge carrier 8 acting quick releases 12, 13, 14 lies in the switching chamber 4 parallel to the contact bridge carrier 8, i.e. also compared to the electromagnet 9, 10, 11.
  • the quick release mechanism 12, 13, 14 has a coil 12, a yoke 13 and an anchor with actuating pin 14, which is over a rocker 15 acts on the contact bridge carrier 8.
  • the coil 12 is in Row connected to one of the fixed contacts 5 and is over one led out of the housing 16 of the switching device 1 Pin 22 connectable. This can be advantageous be used to connect a circuit breaker.
  • the rocker 15 dips with its one leg 17 into a window 19 of the contact bridge support 8 and takes when actuated of the trigger 12,13,14 against the movable contact 6 the force of the contact pressure spring 21 in the opening direction with by the actuating pin 14 on the other leg 18 of the rocker 15 presses.
  • a contact pressure spring 21 is in the Contact bridge support 8 supported.
  • the rocker 15 is through a spring 20 which engages the leg 18 into which the Contacts 5,6 closing position pressed.
  • the electromagnet 9,10,11 For switching the contact arrangement within the nominal current range the electromagnet 9,10,11 is used, the against the back pressure force of a back pressure spring, not shown here with its anchor 11 moves the contact bridge support 8, so that under the action of the contact pressure spring lying in it 21 the contacts 5,6 are closed. Becomes the current flow in the coil 10 of the electromagnet is interrupted, contacts 5,6 are opened by the back pressure spring.
  • the quick release 12, 13, 14 is dimensioned such that he with overcurrents flowing over the contact arrangement, with which is also applied to its coil 12, responds and his actuating pin 14 abruptly seesaw 15 tilts that moves the moving contact 6 instantaneously and tears the contacts 5,6. This way when it occurs welding prevents contacts 5.6 from overcurrents.
  • the drawing also shows a circuit breaker on the the electromagnetic switching device via its connector pin 22 is connected.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)

Claims (6)

  1. Appareil (1) de coupure électromagnétique comportant un électroaimant (9, 10, 11) pour la connexion en fonctionnement de courants dans le domaine de charge et comportant un déclencheur (12, 13, 14) rapide, branché en série, pour la protection vis-à-vis de l'usure de contacts (5) fixes et de contacts (6) mobiles dans le domaine de surcharge, comportant une chambre (4) de commutation, comportant une chambre (7) d'extinction ayant des tôles d'extinction et comportant un support (8) de pont de contact, caractérisé en ce que l'électroaimant (9, 10, 11) est disposé au milieu par rapport au support (8) de pont de contact et y est couplé directement, et en ce que le déclencheur (12, 13, 14) rapide agit par l'intermédiaire d'une bascule (15) sur le contact (6) mobile.
  2. Appareil de coupure électromagnétique suivant la revendication 1, caractérisé en ce que le ressort (21) d'application d'une pression de contact est soutenu dans le support (8) de pont de contact.
  3. Appareil de coupure électromagnétique suivant la revendication 1 ou 2, caractérisé en ce que la bascule (15) plonge par l'une de ses branches (17) dans une fenêtre (19) du support (8) de pont de contact et n'est actionnée qu'en cas de surcharge.
  4. Appareil de coupure électromagnétique suivant l'une des revendications précédentes, caractérisé en ce que le déclencheur (12, 13, 14) rapide est monté dans la chambre (4) de commutation de telle manière que les dispositifs d'actionnement de déclencheurs (12, 13, 14) rapides et du support (8) de pont de contact sont disposés parallèlement.
  5. Appareil de coupure électromagnétique suivant l'une des revendications précédentes, caractérisé en ce que la bascule (15) est maintenue en la position d'ouverture au moyen d'un ressort (20) de torsion.
  6. Appareil de coupure électromagnétique suivant l'une des revendications précédentes, caractérisé en ce qu'il est prévu une broche (22) de raccordement du côté du déclencheur (12,13,14) rapide.
EP96914084A 1995-05-30 1996-05-15 Commutateur electromagnetique Expired - Lifetime EP0829092B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19519756A DE19519756C1 (de) 1995-05-30 1995-05-30 Elektromagnetisches Schaltgerät
DE19519756 1995-05-30
PCT/DE1996/000864 WO1996038851A1 (fr) 1995-05-30 1996-05-15 Commutateur electromagnetique

Publications (2)

Publication Number Publication Date
EP0829092A1 EP0829092A1 (fr) 1998-03-18
EP0829092B1 true EP0829092B1 (fr) 1999-01-20

Family

ID=7763193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96914084A Expired - Lifetime EP0829092B1 (fr) 1995-05-30 1996-05-15 Commutateur electromagnetique

Country Status (5)

Country Link
US (1) US5880658A (fr)
EP (1) EP0829092B1 (fr)
CN (1) CN1063281C (fr)
DE (1) DE19519756C1 (fr)
WO (1) WO1996038851A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101414530B (zh) * 2008-11-25 2010-12-22 福州大学 基于主电路电流激磁的电器快速分断动作机构

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19617136C2 (de) * 1996-04-29 2000-05-11 Siemens Ag Schaltgerät
DE19809205A1 (de) * 1998-03-04 1999-04-15 Siemens Ag Magnetsystem mit Überstromauslösung
DE102004062269A1 (de) * 2004-12-23 2006-07-13 Siemens Ag Verfahren und Vorrichtung zum sicheren Betrieb eines Schaltgerätes
DE102004062266A1 (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
WO2008034467A1 (fr) * 2006-09-21 2008-03-27 Siemens Aktiengesellschaft Unité à commutateurs pour commuter au moins deux états de fonctionnement
DE102009043415B3 (de) 2009-09-29 2010-10-14 Siemens Aktiengesellschaft Freilaufkreis
CN102005343B (zh) * 2010-10-22 2015-01-14 国家电网公司 防接点粘连的断路器
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
CN105793951B (zh) * 2014-05-20 2017-10-10 富士电机机器制御株式会社 电磁接触器
CN107680892A (zh) * 2016-08-02 2018-02-09 天津中电华利电器科技集团有限公司 一种智能化熔断器式开关
WO2019154855A1 (fr) * 2018-02-07 2019-08-15 Tdk Electronics Ag Dispositif commutateur destiné à commuter une charge électrique

Family Cites Families (8)

* 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
FR2516304A1 (fr) * 1981-11-09 1983-05-13 Telemecanique Electrique Interrupteur a commande mecanique et ouverture automatique
ATE43027T1 (de) * 1984-12-18 1989-05-15 Square D Starkstrom Gmbh Motorschutzschalter.
DE8705806U1 (fr) * 1987-04-22 1988-08-18 Kloeckner-Moeller Elektrizitaets Gmbh, 5300 Bonn, De
FR2638563B1 (fr) * 1988-10-27 1990-12-14 Telemecanique Electrique Dispositif de securite pour appareil de commutation realise par l'assemblage de plusieurs elements modulaires amovibles
JP2812810B2 (ja) * 1990-02-14 1998-10-22 三菱電機株式会社 開閉器
FR2687251B1 (fr) * 1992-02-11 1994-04-29 Telemecanique Structure de coupure pour disjoncteur.
FR2707794B1 (fr) * 1993-07-12 1995-08-18 Telemecanique Appareil interrupteur de protection.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101414530B (zh) * 2008-11-25 2010-12-22 福州大学 基于主电路电流激磁的电器快速分断动作机构

Also Published As

Publication number Publication date
CN1063281C (zh) 2001-03-14
WO1996038851A1 (fr) 1996-12-05
DE19519756C1 (de) 1996-07-25
EP0829092A1 (fr) 1998-03-18
CN1184553A (zh) 1998-06-10
US5880658A (en) 1999-03-09

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