EP1501112B1 - Verbesserte magnetische Untereinheit und Schutzschalter der diese Untereinheit beinhaltet - Google Patents

Verbesserte magnetische Untereinheit und Schutzschalter der diese Untereinheit beinhaltet Download PDF

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Publication number
EP1501112B1
EP1501112B1 EP04360055A EP04360055A EP1501112B1 EP 1501112 B1 EP1501112 B1 EP 1501112B1 EP 04360055 A EP04360055 A EP 04360055A EP 04360055 A EP04360055 A EP 04360055A EP 1501112 B1 EP1501112 B1 EP 1501112B1
Authority
EP
European Patent Office
Prior art keywords
magnetic
unit
striker
core
sub
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
EP04360055A
Other languages
English (en)
French (fr)
Other versions
EP1501112A1 (de
Inventor
Jean-Marc Voirpin
Denis Herbrech
Jean-Michel Vigneron
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.)
Hager Electro SAS
Original Assignee
Hager Electro SAS
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 Hager Electro SAS filed Critical Hager Electro SAS
Priority to SI200430099T priority Critical patent/SI1501112T1/sl
Publication of EP1501112A1 publication Critical patent/EP1501112A1/de
Application granted granted Critical
Publication of EP1501112B1 publication Critical patent/EP1501112B1/de
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
    • H01H71/10—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
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part
    • H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
    • H01H71/322—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements with plunger type armature

Definitions

  • the trigger comprises more precisely an induction coil mounted longitudinally in a magnetic yoke, and surrounding the movable core, which is associated with the striker and a fixed core, a return spring disposed between the cores to complete the mounting.
  • This spring makes it possible in particular to recall the mobile core in position rest, firing pin in the inactive position, that is to say away from a mechanical lock allowing the opening of the contacts by tilting of the movable contact.
  • the cylinder head is made of a sheet of magnetic material generally surrounding the coil to properly channel the lines of fields produced, when the coil is traversed by a current.
  • the magnetic subassemblies mounted in one piece are then arranged in a portion of the plastic shell of the housing, at the time of assembly of the circuit breaker.
  • Magnetic subassemblies are known, for example from WO 99/63564, comprising a fixed guide cylinder in which the mobile core associated with the firing pin moves, as well as a fixed magnetic core.
  • An object of the present invention is therefore to reduce the number of constituent parts of the magnetic subassembly and to simplify them to facilitate their assembly, while maintaining the reliability of said magnetic subassembly.
  • the mobile support and the striker are made in one piece, for example plastic.
  • the movable core is further devoid of any chamfering, drilling or countersinking, thus increasing its polar surface. No step of securing the striker on the mobile core is also necessary.
  • the guide means comprises for example an opening in the cylinder head, and through which the striker.
  • the fixed magnetic core is for example integral with the cylinder head.
  • the ends of the induction coil depart tangentially from the turns of the coil.
  • Such a configuration makes it possible to avoid folding operations of said ends and consequently to reduce the cost price of such an induction coil.
  • the magnetic subassembly also comprises a movable magnetic core (3) made of a magnetic material, for example steel.
  • the core (3) has a substantially cylindrical shape and two polar faces (4) and (5).
  • a striker (6) moving with the movable core (3), is also provided and makes it possible to open an electrical contact when it moves from an inactive position to an active position.
  • An elastic return means is provided so as to be biased by the movement of the striker (6).
  • the elastic return means (7a, 7b) automatically returns the striker (6) to its inactive position and the electrical contact can again be closed .
  • a connection terminal (10) to the magnetic subassembly to which the second end (2b) of the coil (2) is connected is also provided.
  • the magnetic subassembly shown in FIG. (2) has an air gap (11) formed between the polar face (5) of the movable core (3) and an internal face (12) of the cylinder head (1), which are opposite one (5) of the other (12).
  • Part of the yoke (1), facing the polar face (5) of the movable magnetic core (3) then constitutes a fixed magnetic core.
  • the gap (11) is devoid of a fixed magnetic core and is at least partially offset outside the magnetic coil (2).
  • the movable core (3) is also simplified in its shape, which is for example cylindrical.
  • the magnetic subassembly comprises a fixed magnetic core (3a) integral with the yoke (1) and traversed by the striker (6).
  • the gap (11) is located between the polar faces facing each other, the movable core (3) and the fixed core (3a). The gap (11) then extends into the interior volume delimited by the magnetic coil (2).
  • the fixed core (3a) is fixed on the yoke (1) by any known means, and in particular by a mounting force or welding.
  • the elastic return means makes it possible, as soon as the flow of electric current in the induction coil (2) is interrupted, to bring back the subassembly mobile mechanics, namely the movable core (3), the movable support (13) and the striker (6) in its inactive position.
  • the mobile support (13) and the striker (6) are made in one piece, for example plastic or any other electrical insulating material.
  • the movable support (13) is a cylindrical piece terminating at one of its ends by a rod constituting the striker (6).
  • the manufacture of such a mobile support (13) by injection is particularly simple and its dimensions are chosen so as to secure it with the movable core (3) by a simple fitting operation.
  • Other known technical means of the bonding type may also be provided for securing the movable core (3) with the movable support (13).
  • the ends (2a) and (2b) of the induction coil (2) depart tangentially from the turns of the coil (2). Any folding operation of said ends (2a, 2b) is suppressed. This gives in more than one way, a reduction in the cost of such an induction coil (2).
  • the yoke (1) is non-magnetic and no fixed magnetic core is attached to said yoke (1).
  • the displacement of the mobile core 3 is obtained by a given location area of a maximum density of magnetic field lines, and to which it is driven. Such a displacement suffices to actuate the firing pin (6).
  • FIG 8 shows a partially cut-away view, for the sake of clarity, of a circuit breaker (15) according to the invention.
  • the circuit breaker (15) incorporating a magnetic subassembly according to the invention comprises a modular housing (16) provided with fixing means (17), for example on a support of the mounting rail type (not shown).
  • the circuit breaker (15) has a rocker-type operating member (18) for moving the movable contact (8a) between an open and closed position (see FIG. 8) of the electrical connection with the contact. fixed (8).
  • the striker (6) acts on a mechanical lock (19) known as such, which moves the movable contact (8a) to open the electrical connection with the fixed contact (8).
  • This opening causes the interruption of the circulation of an electric current between the terminals of connection (10) of the circuit breaker and automatically returns the handle (18) to the position corresponding to the separation of the fixed contacts (8) and movable (8a), thanks to the mechanical lock (19).

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Air Bags (AREA)
  • Hard Magnetic Materials (AREA)

Claims (15)

  1. Magnetische Untereinheit für modulare Schaltgeräte der Art Unterbrecher, welche aufweist:
    - eine Induktionsspule (2),
    - einen beweglichen Magnetkern (3),
    - einen Schlagbolzen (6), der mit dem beweglichen Kern (3) versetzt wird,
    - ein elastisches Rückstellmittel, welches durch das Versetzen des Schlagbolzens (6) gespannt wird,
    dadurch gekennzeichnet, dass der bewegliche Kern (3) in einem beweglichen Träger (13) angeordnet ist, der von dem beweglichen Kern (3) mitgeführt wird und fest mit dem Schlagbolzen (6) zusammengebaut ist.
  2. Magnetische Untereinheit gemäß Anspruch 1, dadurch gekennzeichnet, dass der bewegliche Träger (13) und der Schlagbolzen (6) einstückig ausgebildet sind.
  3. Magnetische Untereinheit gemäß Anspruch 2, dadurch gekennzeichnet, dass der bewegliche Träger (13) ein zylinderförmiges Teil ist, welches an einem seiner Enden durch einen Stift abgeschlossen ist, der den Schlagbolzen (6) bildet.
  4. Magnetische Untereinheit gemäß Anspruch 2 oder 3, dadurch gekennzeichnet, dass der bewegliche Träger (13) aus Kunststoff ist.
  5. Magnetische Untereinheit gemäß einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass diese ein Führungsmittel in Translationsrichtung des Schlagbolzens (6) aufweist.
  6. Magnetische Untereinheit gemäß Anspruch 5, dadurch gekennzeichnet, dass das Führungsmittel eine Öffnung (1 b) aufweist, die in einem Magnetjoch (1) ausgebildet ist und von dem Schlagbolzen (6) durchquert wird.
  7. Magnetische Untereinheit gemäß Anspruch 5, dadurch gekennzeichnet, dass das Führungsmittel eine Öffnung (1 b) aufweist, die in einem feststehenden Kern (3a) ausgebildet ist und von dem Schlagbolzen (6) durchquert wird.
  8. Magnetische Untereinheit gemäß Anspruch 6 und 7, dadurch gekennzeichnet, dass der feststehende Kern (3a) fest mit dem Magnetjoch (1) zusammengebaut ist.
  9. Magnetische Untereinheit gemäß Anspruch 8 oder 6, dadurch gekennzeichnet, dass das Magnetjoch (1) aus einem magnetischen Material ist, wobei ein komplementäres feststehendes magnetisches Element gebildet ist.
  10. Magnetische Untereinheit gemäß Anspruch 9, dadurch gekennzeichnet, dass ein Teil des Magnetjochs (1) gegenüber einer Polfläche (5) des beweglichen Magnetkerns (3) ein komplementäres feststehendes magnetisches Element bildet.
  11. Magnetische Untereinheit gemäß einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass das elastische Rückstellmittel (7a, 7b, 7c) zwischen dem beweglichen Träger (13) und dem Magnetjoch (1) angebracht ist.
  12. Magnetische Untereinheit gemäß Anspruch 11, dadurch gekennzeichnet, dass das elastische Rückstellmittel aus einer biegsamen Zunge (7a) gebildet ist.
  13. Magnetische Untereinheit gemäß einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass die Induktionsspule (2) eine Spule mit getrennten Wicklungen ist.
  14. Magnetische Untereinheit gemäß einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass die Enden (2a, 2b) der Induktionsspule (2) sich tangential von den Wicklungen der Induktionsspule (2) entfernen.
  15. Elektrischer Unterbrecher, welcher aufweist:
    - einen feststehenden Kontakt (8), mit dem das erste Ende (2a) der Spule (2) verbunden ist,
    - eine Klemme zur Verbindung (10) mit der Untereinheit, mit welcher das zweite Ende (2b) der Spule (2) verbunden ist,
    - eine magnetische Untereinheit gemäß einem der Ansprüche 1 bis 14.
EP04360055A 2003-07-22 2004-05-28 Verbesserte magnetische Untereinheit und Schutzschalter der diese Untereinheit beinhaltet Expired - Lifetime EP1501112B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200430099T SI1501112T1 (sl) 2003-07-22 2004-05-28 Izboljsana magnetna podenota in odklopnik, ki obsega to podenoto

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0308949A FR2858106B1 (fr) 2003-07-22 2003-07-22 Sous-ensemble magnetique ameliore et disjoncteur comportant un tel sous-ensemble magnetique
FR0308949 2003-07-22

Publications (2)

Publication Number Publication Date
EP1501112A1 EP1501112A1 (de) 2005-01-26
EP1501112B1 true EP1501112B1 (de) 2006-08-09

Family

ID=33484684

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04360055A Expired - Lifetime EP1501112B1 (de) 2003-07-22 2004-05-28 Verbesserte magnetische Untereinheit und Schutzschalter der diese Untereinheit beinhaltet

Country Status (8)

Country Link
EP (1) EP1501112B1 (de)
CN (1) CN1320580C (de)
AT (1) ATE336076T1 (de)
BR (1) BRPI0402801A (de)
DE (1) DE602004001817T2 (de)
ES (1) ES2271824T3 (de)
FR (1) FR2858106B1 (de)
SI (1) SI1501112T1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009021771A1 (de) * 2009-05-18 2010-11-25 Abb Ag Elektromagnetischer Auslöser und Schaltgerät

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2676860B1 (fr) * 1991-05-21 1994-06-17 Merlin Gerin Declencheur electromagnetique pour un disjoncteur electrique a bas calibres.
US5343178A (en) * 1993-07-09 1994-08-30 Circuit Breaker Industries Limited Electric circuit breaker
FR2779567B1 (fr) * 1998-06-03 2000-07-13 Hager Electro Sous-ensemble magnetique optimise
DE19845476B4 (de) * 1998-10-02 2004-08-12 Aeg Niederspannungstechnik Gmbh & Co Kg Magnetsystem für Leitungsschutzschalter
DE10126854A1 (de) * 2001-06-01 2002-12-19 Siemens Ag Magnetjoch eines elektromagnetischen Auslösers

Also Published As

Publication number Publication date
SI1501112T1 (sl) 2007-02-28
EP1501112A1 (de) 2005-01-26
DE602004001817D1 (de) 2006-09-21
DE602004001817T2 (de) 2007-08-16
ES2271824T3 (es) 2007-04-16
CN1320580C (zh) 2007-06-06
BRPI0402801A (pt) 2005-05-24
ATE336076T1 (de) 2006-09-15
FR2858106A1 (fr) 2005-01-28
FR2858106B1 (fr) 2005-09-23
CN1577687A (zh) 2005-02-09

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