EP0807313B1 - Disjoncteur de protection de ligne - Google Patents

Disjoncteur de protection de ligne Download PDF

Info

Publication number
EP0807313B1
EP0807313B1 EP96901231A EP96901231A EP0807313B1 EP 0807313 B1 EP0807313 B1 EP 0807313B1 EP 96901231 A EP96901231 A EP 96901231A EP 96901231 A EP96901231 A EP 96901231A EP 0807313 B1 EP0807313 B1 EP 0807313B1
Authority
EP
European Patent Office
Prior art keywords
contact
lever
neutral conductor
circuit breaker
conductor terminal
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
EP96901231A
Other languages
German (de)
English (en)
Other versions
EP0807313A1 (fr
Inventor
Torsten Schlegel
Jürgen Feuerhake
Ralf Schwager
Helmut Heindorf
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.)
AEG Niederspannungstechnik GmbH and Co KG
Original Assignee
AEG Niederspannungstechnik GmbH and Co KG
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 AEG Niederspannungstechnik GmbH and Co KG filed Critical AEG Niederspannungstechnik GmbH and Co KG
Publication of EP0807313A1 publication Critical patent/EP0807313A1/fr
Application granted granted Critical
Publication of EP0807313B1 publication Critical patent/EP0807313B1/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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/002—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00 with provision for switching the neutral conductor

Definitions

  • the invention relates to a circuit breaker with a thermal and magnetically protected outer conductor pole and an unprotected neutral conductor pole according to the preamble of claim 1.
  • Such a circuit breaker is known from EP 0 599 800 A1.
  • a contact device of the outer conductor pole and the Neutral conductor pole within a common housing with the usual pole width arranged side by side in parallel planes.
  • Both contact devices are by an angled one arranged in the arc quenching chamber of the outer conductor pole Inner shell separated from each other. Therefore, the room is in front of the Arc quenching device significantly restricted at least on one side.
  • Both contact devices are coupled via one in the inner shell guided slide, which in turn on coaxially arranged bearing axes associated jumpers.
  • the two switching bridges each supported by a compression spring in the same Direction of rotation swiveled.
  • Switch bridges that are directly coupled are particularly affected the switching operations each other considerably. so that the protective function of the Overall conductor pole is adversely affected overall.
  • the invention has for its object a circuit breaker at the beginning mentioned type so that the switching function and operation of the Outer conductor pole unchanged compared to a normal circuit breaker the spatial arrangement of the switching mechanism is retained. Release organs and arcing chamber area are only insignificantly impaired, and in particular welding both the outer conductor and the Neutral conductor contact is reliably prevented.
  • the invention has the advantage that the protected outer conductor pole as a normal Miniature circuit breaker works and mainly from unchanged parts of one such switch is formed. With the same housing size is also in this Construction of the unprotected neutral conductor pole integrated in a space-saving and functional manner. In addition, it is ensured that only the Neutral conductor contact closes automatically by its own contact spring and only then the outer conductor contact. In the closed position of the neutral conductor contact the frictional connection to the contact device of the outer conductor pole is also complete canceled. Its contact lever can ultimately be free as with a single one Swing the circuit breaker into the closed position.
  • phase conductor contact only opens.
  • the contact lever itself initially moved in the direction of the magnet system Switch-off phase the degree of freedom between the outer conductor contact and Neutral conductor contact still enlarged and the contact lever of the outer conductor pole can open completely unaffected by the neutral pole. Only after putting one back predetermined contact opening distance, a slide provides the frictional connection Contact lever of the neutral conductor pole and opens this after the foundedleiterpol.
  • the contact spring reduces the moving Neutral conductor contact very quickly their counterforce to the contact spring of the External conductor contact, which is hardly delayed.
  • the main advantage of the arrangement according to the invention results in the Opening process in the event of a short circuit. After unlatching the Switch lock the blow of the magnetic core for accelerated opening of the External conductor contact directly on the arranged in the same direction Transfer slider, so that this time shifted just as suddenly on the Neutral conductor contact acts in the opening direction. The welding of the The neutral conductor contact is therefore similar to the outer conductor contact the impact of the magnetic trigger is reliably prevented.
  • the circuit breaker shown only partially open has only one with its outer contours indicated switch housing 1, which consists of two half-shells is composed in a known manner and approximately in the drawing level Is 18 mm thick, that is, has a common pole width as a pitch. That with its outer contours the relevant standard dimensions for miniature circuit breakers corresponding switch housing takes one inside Switch mechanism 2, a contact device 3 for the protected Outer conductor pole "L”, a magnetic release 4, a switching and arcing chamber 5 and a thermal trigger 6.
  • the aforementioned assemblies 2 to 6 exist largely from existing components of a normal single-pole circuit breaker and are both in their arrangement as well practically unchanged in their function compared to such a switch.
  • connection terminals Only in the housing base 1.1 are in the conventional area Connection terminals require significant changes to the inner housing contours, on the one hand, enough space for twice the number of terminals to receive (one input and one output terminal each for the outer conductor pole and the neutral conductor pole) and additionally in the input terminal area 1.2 Arrangement of a contact device 7 for the neutral conductor pole "N" in addition to that to enable necessary mechanical and electrical components.
  • this is the core of the Contact device 7 relating to the invention for the neutral conductor pole "N" laterally below the thermal release 6 in the housing base 1.1 in immediate Neighboring the associated input terminal 8 arranged.
  • the works Contact device 7 in the same, but slightly height-offset movement plane (corresponds to the drawing level). like the contact device 3 for the outer conductor pole "L".
  • the contact device 7 consists essentially of a double-armed contact lever 7.1, which is about a housing-fixed axis 7.2 is pivotable, and at its the actual contact point 7.3 opposite free lever end 7.11 with a to be described in more detail Slider 9 cooperates.
  • the contact lever 7.1 works under the effect its contact spring 7.4 on a fixed contact piece 8.1, which as angled extension is connected directly to the input terminal 8, which in turn by means of a terminal box 8.2 and a terminal screw 8.3 the connection of a neutral conductor, not shown.
  • contact lever 7.1 leads, on the other hand, a merely indicated, sufficiently insulated electrical Connection 7.6 across the switch housing to the opposite of the Input terminal 8 arranged on the top, not shown Output terminal of the neutral conductor pole.
  • the same size Input terminal is arranged for the outer conductor pole and from the latter by means of an insert 1.3 (indicated by dash-dot lines) in the Sectioned base.
  • An electrical connection leads from this terminal directly to the foot point 6.1 of the thermal release 6 (indicated schematically by means of a short piece of flexible conductor 6.2) which is sufficiently insulated from the contact device 7 is arranged.
  • the triggering of the switching mechanism 2 causes overcurrent, a flexible Line 6.4 to the pivotable contact lever 3.1 as part of the contact device 3 of the protected outer conductor pole.
  • the contact lever 3.1 of the outer conductor pole is with its slot on one Axis 3.2 fixed to the housing is pivotally mounted and at the same time by a small amount Value can be moved laterally, for example in addition to the build-up of the contact pressure Compensate for changes due to erosion at the contact end 3.3 can. So that the contact lever works on a fixed contact piece 4.1, which About a so-called contact horn 4.2 in a yoke 4.3 of the Magnetic trigger 4 is included. which in turn has a winding 4.4 frame-like encloses.
  • the current path of the outer conductor pole leads directly from the winding an output terminal, not shown, on the top of the switch housing.
  • the winding 4.4 surrounds a magnetic core 4.5, at least in the event of a short circuit a trigger lever 2.1 shown only partially around a housing-fixed axis 2.2 pivoted counterclockwise and the in a known manner Switch mechanism 2 triggers on his knee joint lever 2.3, so that the Contact lever 3.1 from the closed position shown in Figure 2 to the open position can pivot according to Figure 1.
  • the contact spring 3.4 of the outer conductor pole which is considerably stronger than the contact spring 7.4 of the neutral conductor pole.
  • Latter is also designed as a tension spring and with its longer, slightly angled hook-shaped eyelet in an eye 7.5 of the contact lever approximately in the middle between the axis 7.2 and the contact point 7.3 hooked in, while their shorter Eyelet grips over a fixed bolt 1.5.
  • the location of this pin 1.5 is there spatially assigned to the contact lever 7.1 such that the contact spring 7.4 in the Switch-on position (Fig. 2) on an already effective relatively short lever arm pulls while in the off position (Fig. 1) the lever arm almost the value "zero" reached.
  • the circuit breaker is manually operated on the manual control unit 2.4 and the knee joint lever 2.3 located in the over-dead center position in the 2, the contact lever 3.1 pivots about its Axis 3.2 and takes the slider 9 clockwise with the pin 9.1.
  • the lever end resting on the push surface 9.2 moves in the same direction 7.11 under the action of the contact spring 7.4, the pivoting moment on the Contact lever 7.1 becomes increasingly larger due to the displacement of the eye 7.5.
  • the contact point 7.3 has the fixed contact piece 8.1 reached, it arrives there, the contact spring 7.4 now being the largest Unleashes power and alone applies the contact pressure. Only then does the Contact lever 3.1 with its contact-side end 3.3, the fixed contact piece 4.1 and closes the outer conductor pole.

Landscapes

  • Breakers (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
  • Details Of Aerials (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Recrystallisation Techniques (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Claims (11)

  1. Disjoncteur de protection de ligne comportant un pôle de conducteur de phase (L) protégé thermiquement et magnétiquement et un pôle de conducteur neutre (N) non protégé, à chacun desquels est associé un système de contacts (7) formé d'un contact fixe (8.1) et d'un levier de contact (7.1) pivotant, les deux systèmes de contacts étant disposés conjointement dans un boítier de disjoncteur (1) avec seulement une largeur de pôle normale, étant couplés mécaniquement l'un à l'autre et étant commandés par un mécanisme de commutation (2) actionnable manuellement, caractérisé en ce que
    les deux systèmes de contacts (3, 7), rapporté au plan fonctionnel du mécanisme de commutation (2), sont disposés l'un au-dessus de l'autre dans ledit plan, avec des points d'articulation (3.2 et 7.2) séparés dans l'espace pour leur levier de contact (3.1, 7.1) ;
    lors du processus de fermeture et de coupure, les leviers de contact (3.1, 7.1) qui sont couplés à l'aide d'une tige coulissante (9), en partie par obstacle, en partie par adhérence, et sont sollicités par un ressort, pivotent chacun dans des sens opposés autour de leur point d'articulation (3.2 et 7.2) ;
    la tige coulissante (9) est disposée pratiquement sur le prolongement de l'axe du déclencheur magnétique (4) comportant une armature (4.5) ;
    la direction d'actionnement de la tige coulissante (9) se confond avec la direction de travail de l'armature (4.5), de telle sorte qu'en cas de court-circuit, le levier de contact (7.1) du pôle de conducteur neutre (N) est lui aussi sollicité directement dans la direction d'ouverture par l'armature (4.5), qui agit brusquement sur le levier de contact (3.1) du pôle de conducteur de phase (L).
  2. Disjoncteur de protection de ligne selon la revendication 1, caractérisé en ce que la tige coulissante (9), d'un côté est montée mobile sur le levier de contact (3.1) du pôle de conducteur de phase (L), entre le point d'articulation (3.2) de celui-ci et le point de contact (3.3) du conducteur de phase et, de l'autre côté, agit par une surface de poussée (9.2) sur le levier de contact (7.1) à deux bras du pôle de conducteur neutre (N), à l'extrémité (7.11) libre du levier éloignée du point de contact (7.3) de conducteur neutre.
  3. Disjoncteur de protection de ligne selon les revendications 1 et 2, caractérisé en ce que les deux leviers de contact (3.1, 7.1), par des ressorts de contact (3.4, 7.4) qui agissent sur eux dans le même sens de rotation, lors de l'opération de fermeture ou de coupure, sont au moins temporairement en prise mutuelle par adhérence par l'intermédiaire de la tige coulissante (9).
  4. Disjoncteur de protection de ligne selon une des revendications 1 à 3, caractérisé en ce que le levier de contact (7.1) du pôle de conducteur neutre (N) est sollicité uniquement dans la direction de fermeture du contact par le ressort de traction (7.4), qui agit sur ledit levier entre son point d'articulation (7.2) et son point de contact (7.3).
  5. Disjoncteur de protection de ligne selon les revendications 1 à 4, caractérisé en ce que le ressort de traction (ressort de contact 7.4) qui agit sur le levier de contact (7.1) du pôle de conducteur neutre (N) est suspendu entre ses deux points de fixation (7.5, 1.5) de telle sorte que, lorsque le levier de contact (7.1) de conducteur neutre s'ouvre, la direction de sa force pivote presque jusqu'à son point d'articulation (7.2) et passe rapidement dans une position de quasi point mort, de sorte que le moment du ressort de traction (7.4) agissant sur le levier de contact (7.1) ouvert, dans la direction de fermeture de celui-ci, tend vers la valeur « zéro »
  6. Disjoncteur de protection de ligne selon une des revendications 1 à 4, caractérisé en ce que le levier de contact (3.1) de conducteur de phase lors d'une opération de coupure, pendant la première phase d'ouverture du contact n'est retenu par aucune force antagoniste du levier de contact (7.1) de conducteur neutre et travaille comme un disjoncteur de protection de ligne unipolaire courant.
  7. Disjoncteur de protection de ligne selon une des revendications 1 à 6, caractérisé en ce que les deux leviers de contact (3.1, 7.1) sont disposés en regard l'un de l'autre, entre les contacts fixes (4.1 et 8.1) et, au niveau de leurs extrémités côté contact (3.3, 7.3) respectives sont déplacés dans la même direction, mais dans des sens de rotation opposés, lors de la commutation.
  8. Disjoncteur de protection de ligne selon une des revendications 1 à 7, caractérisé en ce que les usures des contacts au niveau des systèmes de contacts (3.7) du pôle de conducteur de phase (L) et du pôle de conducteur neutre (N) se compensent mutuellement.
  9. Disjoncteur de protection de ligne selon une des revendications 1 à 8, caractérisé en ce que le système de contacts (7) pour le pôle de conducteur neutre (N) est disposé dans le socle (1.1) du boítier dans le voisinage immédiat de bornes d'entrée (8).
  10. Disjoncteur de protection de ligne selon une des revendications 1 à 9, caractérisé en ce que la tige coulissante (9) liée à un tourillon (9.1) du levier de contact (3.1) du pôle de conducteur de phase (L), à son extrémité libre (surface de poussée 9.2) agissant sur le levier de contact (7.1) du pôle de conducteur neutre (N) est seulement guidée latéralement dans le socle de boítier (1.1).
  11. Disjoncteur de protection de ligne selon une des revendications 1 à 10, caractérisé en ce que le conducteur de phase (L) protégé, avec ses éléments essentiels (2, 3, 4, 5, 6) est construit principalement à partir d'éléments fonctionnels de même type que ceux d'un disjoncteur de protection de ligne normal existant, sans pôle de conducteur neutre (N).
EP96901231A 1995-02-03 1996-02-02 Disjoncteur de protection de ligne Expired - Lifetime EP0807313B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19503530 1995-02-03
DE19503530A DE19503530B4 (de) 1995-02-03 1995-02-03 Leitungsschutzschalter
PCT/DE1996/000166 WO1996024150A1 (fr) 1995-02-03 1996-02-02 Disjoncteur de protection de ligne

Publications (2)

Publication Number Publication Date
EP0807313A1 EP0807313A1 (fr) 1997-11-19
EP0807313B1 true EP0807313B1 (fr) 2002-05-15

Family

ID=7753099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96901231A Expired - Lifetime EP0807313B1 (fr) 1995-02-03 1996-02-02 Disjoncteur de protection de ligne

Country Status (8)

Country Link
EP (1) EP0807313B1 (fr)
AT (1) ATE217731T1 (fr)
CZ (1) CZ286737B6 (fr)
DE (2) DE19503530B4 (fr)
HU (1) HU221487B (fr)
PL (1) PL180036B1 (fr)
SI (1) SI9620029A (fr)
WO (1) WO1996024150A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102332370A (zh) * 2011-09-06 2012-01-25 浙江加西亚电子电器有限公司 一种小型漏电断路器

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19725000A1 (de) * 1997-06-13 1998-12-17 Abb Patent Gmbh Installationsschaltgerät
DE10102708B4 (de) * 2001-01-22 2004-08-26 Aeg Niederspannungstechnik Gmbh & Co Kg Leitungsschutzschalter
AT504033B1 (de) * 2003-07-17 2012-03-15 Moeller Gebaeudeautomation Kg Schutzschalter
DE102006036194B4 (de) * 2006-08-01 2019-09-26 Siemens Aktiengesellschaft Schaltvorrichtung mit Schaltstellenpaar
DE102006036191A1 (de) * 2006-08-01 2008-02-07 Siemens Ag Schaltvorrichtung
CN107146745B (zh) * 2016-03-01 2020-02-18 浙江正泰电器股份有限公司 电子式漏电断路器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8027246U1 (de) * 1980-10-11 1981-03-12 Ellenberger & Poensgen Gmbh, 8503 Altdorf Überstromschutzschalter
EP0054499B1 (fr) * 1980-12-16 1984-06-13 Legrand Disjoncteur à sectionnement de neutre
DE3242062A1 (de) * 1982-11-13 1984-05-17 Brown, Boveri & Cie Ag, 6800 Mannheim Elektrischer schalter
DE3410157A1 (de) * 1984-03-20 1985-09-26 Brown, Boveri & Cie Ag, 6800 Mannheim Elektrischer schalter mit je einer schaltkontaktstelle fuer einen phasenleiter und fuer einen nulleiter
DE4329100A1 (de) * 1992-10-08 1994-04-14 Abb Patent Gmbh Elektrischer Schalter
AT402583B (de) * 1992-11-25 1997-06-25 Felten & Guilleaume Ag Oester Leitungsschutzschalter mit einem thermisch und magnetisch geschützten aussenleiterpol und einem ungeschützten nulleiterpol
DE59306530D1 (de) * 1993-06-15 1997-06-26 Kopp Heinrich Ag Hilfs- und Signalschalter für Schutzschaltgeräte

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102332370A (zh) * 2011-09-06 2012-01-25 浙江加西亚电子电器有限公司 一种小型漏电断路器

Also Published As

Publication number Publication date
CZ241897A3 (cs) 1999-01-13
WO1996024150A1 (fr) 1996-08-08
HU221487B (en) 2002-10-28
DE19503530A1 (de) 1996-08-08
EP0807313A1 (fr) 1997-11-19
DE19503530B4 (de) 2006-07-06
PL180036B1 (en) 2000-12-29
SI9620029A (sl) 1998-02-28
HUP9800194A2 (hu) 1998-06-29
CZ286737B6 (en) 2000-06-14
HUP9800194A3 (en) 2000-03-28
DE59609216D1 (de) 2002-06-20
PL321260A1 (en) 1997-11-24
ATE217731T1 (de) 2002-06-15

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