EP0114231A1 - Dispositif de protection contre la surintensité - Google Patents

Dispositif de protection contre la surintensité Download PDF

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Publication number
EP0114231A1
EP0114231A1 EP83111424A EP83111424A EP0114231A1 EP 0114231 A1 EP0114231 A1 EP 0114231A1 EP 83111424 A EP83111424 A EP 83111424A EP 83111424 A EP83111424 A EP 83111424A EP 0114231 A1 EP0114231 A1 EP 0114231A1
Authority
EP
European Patent Office
Prior art keywords
contactor
armature
plunger
overcurrent protection
further electromagnet
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.)
Withdrawn
Application number
EP83111424A
Other languages
German (de)
English (en)
Inventor
Anton Ing. Happach (Grad.)
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.)
Schaltbau GmbH
Original Assignee
Schaltbau GmbH
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 Schaltbau GmbH filed Critical Schaltbau GmbH
Publication of EP0114231A1 publication Critical patent/EP0114231A1/fr
Withdrawn legal-status Critical Current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
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/26—Electromagnetic mechanisms with windings acting in opposition

Definitions

  • the invention relates to an overcurrent protection for an electrical circuit, which is closed by means of a contactor, by means of the armature of which is actuated indirectly against a return spring by releasing a further spring which is weaker than the return spring and which generates the contact pressure, one or more contact pairs and whose magnetic core has an axially continuous bore that is freely accessible on the side facing away from the armature.
  • Diving anchorers of the type described in the previous paragraph are e.g. B. from DE-AS 24 18 930 known. They are usually described in such a way that the current in the field winding is increased until the armature is tightened and thus until the contacts moved over the armature are closed. After tightening, the winding current is reduced to the holding current if the need to save electricity, for example in trackless battery vehicles, is reduced.
  • Such known contactors only serve as electromagnetically operated switching devices and require the conventional design to protect the circuits they switch against overcurrents of additional fuse means. This naturally requires a larger amount of space, which is particularly undesirable in mobile systems such as trackless battery vehicles or electric vehicles.
  • overcurrent protection according to the invention is explained with reference to the exemplary embodiment of an overcurrent protection according to the invention, which is provided with submersible anchors and is shown in a partially schematic illustration in FIG. 1.
  • the contactor designed as a conventional diving anchor contactor is generally designated 1. It consists of a winding 2 which surrounds the magnetic core 3, which holds the pole ring 5 via the yoke 4 shown in dashed lines and runs out into the pole ring 6 on the other side.
  • the diving anchor contactor 1 is shown in the working position.
  • the plunger 7 is tightened against the return spring 8. It releases a further spring 30, which is weaker than the return spring 8 and generates the contact pressure with which the contact bridge 9 rests on the fixed contacts 10 and 11.
  • the return spring 8 rests on the one hand in a blind hole 13 on the plunger armature 7 and on the other hand on a shoulder 14 machined out of the magnetic core 3.
  • the magnetic core 3 also has a continuous central bore 15.
  • the overcurrent protection according to the invention consists of a further electromagnet, which is generally designated 16.
  • This in turn has a magnetic core 17 with a yoke 18 and the pole rings 19 and 20.
  • Its winding 21 consisting of a few turns is electrically connected in series with the contact system 9, 10, 11 of the plunger armature contactor 1.
  • the magnetic core 17 also has a through bore 22 which is aligned with the bore 15 in the magnetic core 3 of the plunger armature 1.
  • the immersion armature 23 of the immersion armature magnet 16, which is in the non-excited state in the position shown, is fastened to a plunger 24 which passes through both bores 22 and 15 and the return spring 8.
  • the length of the plunger 24 is such that, as shown, it maintains a distance 25 in the rest position of the plunger armature magnet 16 and in the working position of the plunger armature contactor 1 from its plunger armature 7 in the blind hole 13, which distance 25 is smaller than the stroke 26 of the plunger armature magnet 16.
  • the plunger armature 23 is attracted. Since the stroke of the plunger 23 is greater than the distance 25 of the plunger 24 from the plunger 7 and is directed against its direction of movement and since the plunger 7 is held against the return spring 8, the plunger 24 impacts the plunger 7 from its position shown driven out and thus the contact system 9, 10, 11 opened.
  • the length of the plunger 24 can be changed according to the invention via its attachment to the plunger armature 23 at 27.
  • Fig. 2 shows an example of the embodiment according to the invention with a. Folding anchor is provided.
  • the components, their arrangement and their function are largely the same as those in FIG. 1. There is only a difference insofar as this is necessary due to the use of hinged armatures 28 and 29 in the contactor and in the further electromagnet.
EP83111424A 1983-01-24 1983-11-15 Dispositif de protection contre la surintensité Withdrawn EP0114231A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3302229 1983-01-24
DE3302229 1983-01-24

Publications (1)

Publication Number Publication Date
EP0114231A1 true EP0114231A1 (fr) 1984-08-01

Family

ID=6189053

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83111424A Withdrawn EP0114231A1 (fr) 1983-01-24 1983-11-15 Dispositif de protection contre la surintensité

Country Status (3)

Country Link
US (1) US4491812A (fr)
EP (1) EP0114231A1 (fr)
JP (1) JPS59141137A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4022612A1 (de) * 1989-08-12 1991-02-21 Eichhoff Werke Ueberstromschutz
DE9115607U1 (fr) * 1991-12-17 1992-02-13 Abb Patent Gmbh, 6800 Mannheim, De
DE4124190A1 (de) * 1991-07-20 1993-01-21 Abb Patent Gmbh Verfahren zum ueberwachen und ausschalten eines wenigstens einen hin- und einen rueckleiter aufweisenden netzes aufgrund eines fehler- oder erdschlussstromes sowie schaltungsanordnung zur durchfuehrung des verfahrens
WO2013020783A1 (fr) * 2011-07-20 2013-02-14 Tyco Electronics Amp Gmbh Dispositif de commutation comportant un dispositif de protection contre les surcharges ainsi qu'un premier et un deuxième organe d'actionnement

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4931758A (en) * 1988-12-09 1990-06-05 Circuit Breaker Industries Limited Electro-magnetic shunt trip device
DE19602118C2 (de) * 1996-01-22 1999-12-30 Siemens Ag Elektrisches Schaltgerät
CA2283377A1 (fr) * 1997-03-08 1998-09-17 Richard Anthony Connell Contacteur bipolaire
DE19716380C1 (de) * 1997-04-18 1998-10-08 Siemens Ag Elektromagnetisches Schaltgerät
DE19960755A1 (de) * 1999-12-16 2001-07-05 Ellenberger & Poensgen Simulationsschalter
US8729984B2 (en) * 2011-06-06 2014-05-20 Rockwell Automation Technologies, Inc. Magnetic actuator with more than one air gap in series
DE102012106108A1 (de) * 2012-07-06 2014-01-09 Tyco Electronics Amp Gmbh Elektrische Schaltvorrichtung und Verfahren zum Schalten selbiger mit Kontakttrennung im Sicherungsfall

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE571392C (de) * 1930-10-25 1933-02-28 Aeg Ein- oder mehrpoliges Schuetz mit einem an Spannung liegenden Schaltmagneten und einer von dem magnetischen Fluss des Schaltmagneten unabhaengigen UEberstromausloesung
DE1202888B (de) * 1961-06-27 1965-10-14 Licentia Gmbh Elektromagnetischer Ausloeser fuer elektrische Selbstschalter
DE2418930B2 (de) * 1973-04-19 1977-06-16 Square D Co., Park Ridge, 111. (V-StA.) Gleichstrombetaetigtes elektromagnetisches tauchankerschuetz
DE2848287A1 (de) * 1977-11-08 1979-05-10 Telemecanique Electrique Magnetschalter mit einem ueberstromempfindlichen elektromagnet zur begrenzung und unterbrechung zu starker stroeme

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1297979A (en) * 1916-04-07 1919-03-18 Ind Controller Company Magnetically-controlled switch.
US2901210A (en) * 1953-06-29 1959-08-25 Phillips Petroleum Co Electro-magnetic device
GB1432372A (en) * 1972-07-26 1976-04-14 Lucas Electrical Ltd Solenoid operated switch assemblies

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE571392C (de) * 1930-10-25 1933-02-28 Aeg Ein- oder mehrpoliges Schuetz mit einem an Spannung liegenden Schaltmagneten und einer von dem magnetischen Fluss des Schaltmagneten unabhaengigen UEberstromausloesung
DE1202888B (de) * 1961-06-27 1965-10-14 Licentia Gmbh Elektromagnetischer Ausloeser fuer elektrische Selbstschalter
DE2418930B2 (de) * 1973-04-19 1977-06-16 Square D Co., Park Ridge, 111. (V-StA.) Gleichstrombetaetigtes elektromagnetisches tauchankerschuetz
DE2848287A1 (de) * 1977-11-08 1979-05-10 Telemecanique Electrique Magnetschalter mit einem ueberstromempfindlichen elektromagnet zur begrenzung und unterbrechung zu starker stroeme

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4022612A1 (de) * 1989-08-12 1991-02-21 Eichhoff Werke Ueberstromschutz
DE4124190A1 (de) * 1991-07-20 1993-01-21 Abb Patent Gmbh Verfahren zum ueberwachen und ausschalten eines wenigstens einen hin- und einen rueckleiter aufweisenden netzes aufgrund eines fehler- oder erdschlussstromes sowie schaltungsanordnung zur durchfuehrung des verfahrens
DE9115607U1 (fr) * 1991-12-17 1992-02-13 Abb Patent Gmbh, 6800 Mannheim, De
WO2013020783A1 (fr) * 2011-07-20 2013-02-14 Tyco Electronics Amp Gmbh Dispositif de commutation comportant un dispositif de protection contre les surcharges ainsi qu'un premier et un deuxième organe d'actionnement
DE102011052003B4 (de) 2011-07-20 2022-06-15 Te Connectivity Germany Gmbh Schaltvorrichtung mit Überlastsicherungsvorrichtung und einem ersten und einem zweiten Betätigungsorgan

Also Published As

Publication number Publication date
JPS59141137A (ja) 1984-08-13
US4491812A (en) 1985-01-01

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

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AK Designated contracting states

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

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18D Application deemed to be withdrawn

Effective date: 19850401

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HAPPACH, ANTON, ING. (GRAD.)