EP1053556B1 - Electromagnetic current releasing device for electrical circuit breaker - Google Patents

Electromagnetic current releasing device for electrical circuit breaker Download PDF

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Publication number
EP1053556B1
EP1053556B1 EP99914393A EP99914393A EP1053556B1 EP 1053556 B1 EP1053556 B1 EP 1053556B1 EP 99914393 A EP99914393 A EP 99914393A EP 99914393 A EP99914393 A EP 99914393A EP 1053556 B1 EP1053556 B1 EP 1053556B1
Authority
EP
European Patent Office
Prior art keywords
releasing device
circuit breaker
electrical circuit
electromagnetic current
current releasing
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
EP99914393A
Other languages
German (de)
French (fr)
Other versions
EP1053556A1 (en
Inventor
Christian Schreckinger
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 EP1053556A1 publication Critical patent/EP1053556A1/en
Application granted granted Critical
Publication of EP1053556B1 publication Critical patent/EP1053556B1/en
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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • 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
    • 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
    • H01H2071/249—Electromagnetic mechanisms with part of the magnetic circuit being in the normal current path in the circuit breaker, e.g. yoke, fixed contact and arc-runner are made out of one single conductive element

Definitions

  • the invention relates to an electromagnetic Current release for an electrical circuit breaker with a Magnetic coil, a movable armature and a fixed magnetic core, through a power connector on the solenoid is held.
  • Generic electromagnetic current release according to FIG. 2 are used to detect overcurrents, especially short-circuit currents, with conventional electrical circuit breakers applied to single and multi-pole electrical consumers to protect against impermissible operating conditions.
  • This Circuit breakers can be circuit breakers, motor circuit breakers and circuit breakers. You must have overcurrents ever according to the applicable regulation within certain response limits switch off.
  • the current releases are included coupled to the contacts of the circuit breaker to be opened, that they respond to an overcurrent or Open short-circuit current and keep open if necessary.
  • 2 are such current release 1 from a magnetic coil 2, a coil frame 3 with a guide tube 4, a movable anchor 5, a stationary magnetic core 6, a spring 7 and one Power connector 8 assembled.
  • the bobbin stand 3 with the guide tube 4 is made of insulating material.
  • the magnet coil 2 is wound or attached.
  • the one movably mounted in the guide tube 4 Armature 5 moves against the spring force of the spring 7 as Response to an overcurrent or short circuit current.
  • a magnetic core 6 is pressed.
  • the magnetic core 6 is an additional part, which is preferably is stored inside the guide tube 4, i.e. at least partly inside the magnetic coil 2.
  • the invention has for its object an electromagnetic Current triggers of the above-mentioned type are partially minimized and therefore economical to manufacture.
  • the object is achieved in that the magnetic core and the Power connector are made in one piece.
  • a particularly inexpensive embodiment is given if the magnetic core and the power connector as one piece Stamped and bent part are manufactured.
  • the electromagnetic current release 1 is off a magnetic coil 2, a coil frame 3 with a guide tube 4 made of insulating material, a movable anchor 5, a stationary magnetic core 6, a spring 7 and one Power connector 8 composed as essential elements.
  • the magnet coil 2 is wound around the coil frame or attached to it and part of the current path of a consumer to be protected.
  • the armature 5 is movable stored in the guide tube 4 and responds to a short circuit current. The movement of the armature 5 brings about corresponding mechanical coupling elements an opening in the current path located contact points.
  • the anchor moves 5 against the action of force also in the guide tube 4 mounted spring 7.
  • a fixed magnetic core 6 arranged together with a power terminal 8 for the solenoid 2 is manufactured as a one-piece part. This part is advantageous executed as a stamped and bent part.

Landscapes

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

Abstract

The invention relates to an electromagnetic current releasing device (1), wherein a fixed magnetic core (6) which forms part of the magnetic system is built as a single piece with a terminal (8) used for connecting the magnetic spool (2) of the magnetic system, in the form of a stamped and bent piece. A cost effective current releasing device can thus be obtained.

Description

Die Erfindung bezieht sich auf einen elektromagnetischen Stromauslöser für einen elektrischen Schutzschalter mit einer Magnetspule, einem beweglichen Anker und einem ortsfesten Magnetkern, der durch eine Stromanschlußklemme der Magnetspule gehalten ist.The invention relates to an electromagnetic Current release for an electrical circuit breaker with a Magnetic coil, a movable armature and a fixed magnetic core, through a power connector on the solenoid is held.

Gattungsgemäße elektromagnetische Stromauslöser gemäß FIG 2 werden zur Erkennung von Überströmen, insbesondere von Kurzschlußströmen, bei konventionellen elektrischen Schutzschaltern angewandt, um ein- und mehrpolige elektrische Verbraucher vor unzulässigen Betriebszuständen zu schützen. Diese Schutzschalter können Leistungsschalter, Motorschutzschalter und Leitungsschutzschalter sein. Sie müssen Überströme je nach geltender Vorschrift innerhalb bestimmter Ansprechgrenzen abschalten. Zu diesem Zweck sind die Stromauslöser mit den zu öffnenden Kontakten der Schutzschalter dahingehend gekoppelt, daß sie diese als Reaktion auf einen Überstrom- bzw. Kurzschlußstrom öffnen und ggf. offenhalten. Gemäß FIG 2 sind solche Stromauslöser 1 aus einer Magnetspule 2, einem Spulengestell 3 mit einer Führungsröhre 4, einem beweglichen Anker 5, einem ortsfesten Magnetkern 6, einer Feder 7 und einer Stromanschlußklemme 8 zusammengesetzt. Das Spulengestell 3 mit der Führungsröhre 4 besteht aus isolierendem Material. Um das Spulengestell 3 ist die Magnetspule 2 aufgewickelt oder aufgesteckt. Der in der Führungsröhre 4 beweglich gelagerte Anker 5 bewegt sich entgegen der Federkraft der Feder 7 als Reaktion auf einen Überstrom- bzw. Kurzschlußstrom. Hierdurch wird über entsprechende mechanische Koppelglieder ein Öffnen der in der Strombahn befindlichen Kontakte erreicht. In die Führungsröhre 4 des Spulengestells 3 oder in die Anschlußklemme 8, wie in FIG 2 gezeigt, ist ein Magnetkern 6 eingepreßt. Der Magnetkern 6 ist ein Zusatzteil, das vorzugsweise im Inneren der Führungsröhre 4 gelagert ist, d.h. zumindest teilweise im Innenraum der Magnetspule 2.Generic electromagnetic current release according to FIG. 2 are used to detect overcurrents, especially short-circuit currents, with conventional electrical circuit breakers applied to single and multi-pole electrical consumers to protect against impermissible operating conditions. This Circuit breakers can be circuit breakers, motor circuit breakers and circuit breakers. You must have overcurrents ever according to the applicable regulation within certain response limits switch off. For this purpose the current releases are included coupled to the contacts of the circuit breaker to be opened, that they respond to an overcurrent or Open short-circuit current and keep open if necessary. 2 are such current release 1 from a magnetic coil 2, a coil frame 3 with a guide tube 4, a movable anchor 5, a stationary magnetic core 6, a spring 7 and one Power connector 8 assembled. The bobbin stand 3 with the guide tube 4 is made of insulating material. Around the coil frame 3, the magnet coil 2 is wound or attached. The one movably mounted in the guide tube 4 Armature 5 moves against the spring force of the spring 7 as Response to an overcurrent or short circuit current. Hereby is opened via appropriate mechanical coupling links of the contacts in the current path. In the Guide tube 4 of the bobbin 3 or in the terminal 8, as shown in FIG 2, a magnetic core 6 is pressed. The magnetic core 6 is an additional part, which is preferably is stored inside the guide tube 4, i.e. at least partly inside the magnetic coil 2.

Der Erfindung liegt die Aufgabe zugrunde, einen elektromagnetischen Stromauslöser der obengenannten Art teileminimiert und damit wirtschaftlich herzustellen.The invention has for its object an electromagnetic Current triggers of the above-mentioned type are partially minimized and therefore economical to manufacture.

Die Aufgabe wird dadurch gelöst, daß der Magnetkern und die Stromanschlußklemme einstückig ausgeführt sind.The object is achieved in that the magnetic core and the Power connector are made in one piece.

Eine besonders kostengünstige Ausführungsform ist gegeben, wenn der Magnetkern und die Stromanschlußklemme als einstükkiges Stanzbiegeteil gefertigt sind.A particularly inexpensive embodiment is given if the magnetic core and the power connector as one piece Stamped and bent part are manufactured.

Ein Ausführungsbeispiel der Erfindung wird im folgenden anhand einer Zeichnung näher erläutert. Es zeigen:

FIG 1
einen erfindungsgemäßen Stromauslöser und
FIG 2
eine Ausführung eines bekannten Stromauslösers.
An embodiment of the invention is explained below with reference to a drawing. Show it:
FIG. 1
a current release according to the invention and
FIG 2
an embodiment of a known current release.

Der elektromagnetische Stromauslöser 1 gemäß FIG 1 ist aus einer Magnetspule 2, einem Spulengestell 3 mit einer Führungsröhre 4 aus isolierendem Material, einem beweglichen Anker 5, einem ortsfesten Magnetkern 6, einer Feder 7 und einer Stromanschlußklemme 8 als wesentlichen Elementen zusammengesetzt. Die Magnetspule 2 ist um das Spulengestell aufgewikkelt oder darauf aufgesteckt und Bestandteil der Strombahn eines zu schützenden Verbrauchers. Der Anker 5 ist beweglich in der Führungsröhre 4 gelagert und reagiert auf einen Kurzschlußstrom. Die Bewegung des Ankers 5 bewirkt über entsprechende mechanische Koppelglieder ein Öffnen von in der Strombahn befindlichen Kontaktstellen. Dabei bewegt sich der Anker 5 gegen die Kraftwirkung einer ebenfalls in der Führungsröhre 4 gelagerten Feder 7. Um eine steilere Kraftkurve des Stromauslösers 1 zu erhalten, ist in der Führungsröhre 4 des Spulengestells 3 ein ortsfester Magnetkern 6 angeordnet, der zusammen mit einer Stromanschlußklemme 8 für die Magnetspule 2 als einstückiges Teil gefertigt ist. Dieses Teil ist vorteilhafterweise als Stanzbiegeteil ausgeführt.The electromagnetic current release 1 according to FIG 1 is off a magnetic coil 2, a coil frame 3 with a guide tube 4 made of insulating material, a movable anchor 5, a stationary magnetic core 6, a spring 7 and one Power connector 8 composed as essential elements. The magnet coil 2 is wound around the coil frame or attached to it and part of the current path of a consumer to be protected. The armature 5 is movable stored in the guide tube 4 and responds to a short circuit current. The movement of the armature 5 brings about corresponding mechanical coupling elements an opening in the current path located contact points. The anchor moves 5 against the action of force also in the guide tube 4 mounted spring 7. To a steeper force curve of the current release 1 is obtained in the guide tube 4 of the coil frame 3 a fixed magnetic core 6 arranged together with a power terminal 8 for the solenoid 2 is manufactured as a one-piece part. This part is advantageous executed as a stamped and bent part.

Claims (2)

  1. An electronic current release for an electrical circuit breaker having a magnetic coil (2), a moving armature (5) and a stationary magnet core (6), which is held by a power connection terminal (8) of the magnetic coil (2), characterised in that the magnet core (6) and the power connection terminal (8) are designed as one piece.
  2. The electromagnetic current release in accordance with Claim 1, characterised in that the fixed magnet core (6) and the power connection terminal (8) are manufactured as a stamped and bent part.
EP99914393A 1998-02-11 1999-01-29 Electromagnetic current releasing device for electrical circuit breaker Expired - Lifetime EP1053556B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29802348U 1998-02-11
DE29802348U DE29802348U1 (en) 1998-02-11 1998-02-11 Electromagnetic current release for an electrical circuit breaker
PCT/DE1999/000249 WO1999041760A1 (en) 1998-02-11 1999-01-29 Electromagnetic current releasing device for electrical circuit breaker

Publications (2)

Publication Number Publication Date
EP1053556A1 EP1053556A1 (en) 2000-11-22
EP1053556B1 true EP1053556B1 (en) 2001-12-12

Family

ID=8052523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99914393A Expired - Lifetime EP1053556B1 (en) 1998-02-11 1999-01-29 Electromagnetic current releasing device for electrical circuit breaker

Country Status (5)

Country Link
EP (1) EP1053556B1 (en)
JP (1) JP2002503869A (en)
CN (1) CN1174457C (en)
DE (2) DE29802348U1 (en)
WO (1) WO1999041760A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2359031T3 (en) 1996-08-08 2011-05-17 Amylin Pharmaceuticals, Inc. PHARMACEUTICAL COMPOSITION THAT INCLUDES AN EXENDIN-4 PEPTIDE.
DE29910338U1 (en) 1999-06-14 1999-08-12 Schaltbau AG, 81677 München Emergency switch
DE10126854A1 (en) * 2001-06-01 2002-12-19 Siemens Ag Magnetic yoke for electromagnetic trip of switching device has magnetic core cooperating with trip coil formed in one piece with base body of magnetic yoke
CN101527228B (en) * 2008-03-03 2012-01-18 西门子公司 excitor
CN102133867A (en) * 2011-03-31 2011-07-27 韦良东 Circuit automatic protector against water seepage caused by automobile collision
KR20170091415A (en) * 2016-02-01 2017-08-09 일진전기 주식회사 Improved spring operation device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH481479A (en) * 1967-10-11 1969-11-15 Maier & Cie C Magnetic release for circuit breaker
CH616271A5 (en) * 1977-06-27 1980-03-14 Weber Ag Fab Elektro
SE452519B (en) * 1984-11-13 1987-11-30 Tocksfors Verkstads Ab eLECTROMAGNET
CH670170A5 (en) * 1986-04-07 1989-05-12 Sprecher & Schuh Ag
GB8609464D0 (en) * 1986-04-17 1986-05-21 Ped Ltd Solenoid actuator
GB8717083D0 (en) * 1987-07-20 1987-08-26 Gen Electric Co Plc Electric switches
FR2629633A1 (en) * 1988-03-30 1989-10-06 Hager Electro MAGNETIC TRIGGER FOR CIRCUIT BREAKER
DE29502573U1 (en) * 1995-02-16 1995-04-20 Heinrich Kopp Ag, 63796 Kahl Switchgear, especially circuit breakers

Also Published As

Publication number Publication date
EP1053556A1 (en) 2000-11-22
CN1274469A (en) 2000-11-22
WO1999041760A1 (en) 1999-08-19
CN1174457C (en) 2004-11-03
DE59900539D1 (en) 2002-01-24
JP2002503869A (en) 2002-02-05
DE29802348U1 (en) 1998-04-23

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