EP0419324B1 - Schaltervorrichtung mit Lichtbogenbildung fördernden Stromschleifen - Google Patents

Schaltervorrichtung mit Lichtbogenbildung fördernden Stromschleifen Download PDF

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Publication number
EP0419324B1
EP0419324B1 EP90402519A EP90402519A EP0419324B1 EP 0419324 B1 EP0419324 B1 EP 0419324B1 EP 90402519 A EP90402519 A EP 90402519A EP 90402519 A EP90402519 A EP 90402519A EP 0419324 B1 EP0419324 B1 EP 0419324B1
Authority
EP
European Patent Office
Prior art keywords
plane
loop
switch device
fixed contact
loops
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
EP90402519A
Other languages
English (en)
French (fr)
Other versions
EP0419324A1 (de
Inventor
Christian Blanchard
Didier Vigouroux
Michel Lauraire
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.)
Telemecanique SA
Original Assignee
Telemecanique Electrique SA
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 Telemecanique Electrique SA filed Critical Telemecanique Electrique SA
Publication of EP0419324A1 publication Critical patent/EP0419324A1/de
Application granted granted Critical
Publication of EP0419324B1 publication Critical patent/EP0419324B1/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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet

Definitions

  • the invention relates to a protective switch device, for a circuit subject to short-circuit currents, in which the natural development of the arc appearing at the opening of a pair of contacts placed in a chamber and occurring moving along a deflector conductor is assisted and accelerated by a magnetic induction developed by at least one conductive loop of these currents which is placed outside the chamber in a plane substantially parallel to that which passes through this deflector and through these contacts.
  • a protective switch device of a type similar to that described in patent EP-231,600, in which the conductive loop is formed by a first end portion connected to the fixed contact, extended by a tab constituting the deflector conductor and connected by a loop portion of a second end portion which is placed in alignment with the tongue and which is intended to directly or indirectly join a connection terminal of the device receiving the device.
  • These devices which are mainly intended to equip overcurrent protection devices, use the device of an assistance in blowing the arc thanks to an induction which is established on its path in order to accelerate its swelling and to hasten its destabilization. Thanks to this device, we can build limiting devices of reduced size which the need arises for both industrial and domestic installations where the technical cost becomes one of the main criteria of choice.
  • the invention therefore proposes to provide a switch device as defined above, in which the shape of the current loop can meet the following requirements: simplicity, ease of assembly, reduced overall width and reduced cost Manufacturing.
  • a switching device 1 in which the invention can be advantageously implemented can be incorporated, see FIG. 1, into an insulating prismatic box 2 inside which there is one (or two) breaking chambers such as 3; we can, for example, imagine a device more complete by establishing symmetry with respect to the axis of movement XX ′ of a movable contact bridge 4.
  • This contact bridge then carries pads 5, 6 cooperating with fixed contact pads 7, 8 and is here subjected to the action of a contact pressure spring 9 which can be compressed or released by the movement of an external pusher 10 acting on a lateral guiding and holding means 11 of the contact bridge.
  • the fixed contact 8 is soldered to an end portion 12 of a conductive copper part 13 having a folded portion 14, an ascending branch 15a, 15, a descending branch 16 and a second end portion 17 which is offset and folded down to receive a connection terminal 18; an extension 19 of the portion 12 constituting a deflector extends in the chamber in the direction of the terminal and joins a region 20 opposite to the contacts in which there may be means capable of destabilizing an electric arc, such as a narrow slot, fractionation fins, etc.
  • a magnetizable flat part 21 is arranged under the deflector 19.
  • a second conductive deflection piece 22 which would also extend in a symmetrical chamber not shown, allows the current of an arc such as 23 to flow between the terminal 18 and an opposite symmetrical terminal 24 by supplying a second arc 25 symmetrical to the first , the circuit of which passes through a symmetrical deflector 19 ′.
  • the different segments 14, 15, 16, 17 constitute a conductive loop 30 capable of creating, in the area crossed by the arc between the fixed contact and the region 20, an induction of direction perpendicular to the figure.
  • a rough blank metal blank 26 having a longitudinal portion 28, 28a, 28b, such as that visible in FIG. 4, can advantageously be used to produce a conductive part having a single loop, when it is subjected to deformations in its plan which are intended to reveal the various elements 19, 12, 14, 17; 15, 15a, 16, 16a in the appropriate places.
  • a blank 27 of the part, visible in FIG. 5, will be used when the latter must include two loops 30c, 30b, such as those visible in FIG. 3, where it can be seen that one can dispense with operating the separations - S - and - T -.
  • the loops 30 are formed by folding down, for example at a right angle towards a folding plane parallel to the plane PP ′ of the margins (not projecting) of the blank, then stretching / arching of these margins in the drawdown plane.
  • the conductive part which has been illustrated shows, see FIG. 1, the fact that the rising branch or branches 15a are connected to the portion 12 by a portion 14 being placed at a level lower than that of the plane SS ′ where is fixed the fixed contact pad 6.
  • This branch 15 is, moreover, placed so that the pair of contacts 5, 8 is located between the branches 15a and 16.
  • the arc moves while keeping its feet on two opposite deflectors 19, 19 ′ which can be put in place on either side of a contact bridge 4 with double break.
  • the conductive part With its loop (s) and its contact and terminal regions, represents an inseparable whole, it is not possible to incorporate it directly into a housing of any shape since a part will be inside and another part outside of it.
  • FIGS. 9 to 11 it is therefore necessarily necessary to define a housing 50 capable of allowing the implementation of this conductive assistance part, in particular when the latter has two loops.
  • This which is shown in Figures 11, 12, 13 to which reference will be made, in order to illustrate a housing with two symmetrical breaking chambers, uses two insulating shells 52, 53 substantially symmetrical with respect to a joint plane median WW ′ where, after mounting, the median plane PP ′ of the conductive part will be located and to a base 54 intended mainly to locally seal the cavity which is between the two shells in order to constitute the two symmetrical breaking chambers of a switch having a contact bridge.
  • This base mainly comprises an axial guide channel 55 intended to receive a mobile contact bridge support such as that designated at 10 in FIG. 1 and a certain number of clearances 56, 57 and 58, 59 which are intended to receive the portions end such as 14 and 17 in order to immobilize them.
  • This first installation of the conductive part can here be done by exploiting if necessary the elasticity of the latter parallel to the plane PP ′.
  • the clearances such as 58, 59 which are made in a central rib 60 of the base having a width less than that of the external face 61, extend to this face while leaving on either side of the median plane two parallel arms 62, 63 contributing to the maintenance of a terminal such as 18.
  • the shells 52, 53 each have on an internal wall of the chamber such as 64, on the one hand, clearances or grooves 65, 66 and 67 for securing the opposite edges of the individual deflectors such as 19 and respectively those of the common deflector such that 22 and, on the other hand, a boss such as 68 serving to receive the end of the return spring of the contact bridge such as 9.
  • an external wall 69 opposite to the wall 64 of a shell there are open corridors or footprints of shallow depth such as 71, 72 which are shaped to receive the external parts of the loops such as 30 c , 30 b and which circulate by following between a region 73 adjacent to the portion 14, and a region 74 adjacent to the portion 17 of the conductive part.
  • Lateral clearances such as 75 and 76, which are located opposite the clearances such as 56, 57, allow passage of the ends of the external ascending branches of the loops, up to the internal volume of the cavity present between the shells.
  • the shells of the set-up is done in direction F simultaneously discarding the loops 30a, 30b of the conductive member and thereafter folding them in the corridors 71, 72; the latter, which do not have a depth much greater than the thickness of the current loops, can simultaneously maintain the various elements constituting the housing or contribute to it.

Claims (6)

  1. Schutz-Trennschaltervorrichtung für eine Kurzschlußströmen ausgesetzte Schaltung, bei der die natürliche Entwicklung des Lichtbogens, der bei der Öffnung zwischen einem beweglichen Kontakt (5, 6) und einem ortsfesten Kontakt (7, 8), die in einer Kammer (3) angeordnet sind, auftritt und sich entlang eines Deflektor-Leiters (19) bewegt, von einer magnetischen Induktion unterstützt und beschleunigt wird, die von mindestens einer diese Ströme leitenden Schleife (30) entwickelt wird, die sich außerhalb der Kammer (3) in einer Ebene befindet, die im wesentlichen parallel zu der ist, die durch diesen Deflektor (19) und diese Kontakte (5, 6; 7, 8) verläuft, wobei die Schleife (30) aus einem mit dem ortsfesten Kontakt (7, 8) verbundenen ersten Endabschnitt (14, 31) besteht, der durch eine Zunge (19) verlängert wird, die den Deflektor-Leiter bildet und strukturell über einen Schleifenabschnitt (30b, 30c) mit einem zweiten Endabschnitt (17, 32) verbunden ist, der in Flucht mit der Zunge (19) angeordnet ist und der sich direkt oder indirekt an eine Anschlußklemme des die Vorrichtung aufnehmenden Geräts anschließen soll,
    dadurch gekennzeichnet, daß
    - die Schleife (30) aus einem die Zunge (19) enthaltenden festen Teil besteht, wobei der erste Endabschnitt (12) mit dem festen Kontakt (7, 8) und der zweite Endabschnitt (17) mit einer Klemme (18) verbunden ist,
    - der Schleifenabschnitt (30b, 30c) ausgehend von einem Längsabschnitt (28, 28a, 28b) eines einzigen, aus einem Band ausgeschnittenen flachen Rohlings (26, 27) gebildet wird, der im wesentlichen im rechten Winkel zu einer Ebene parallel zur durch die Kontakte (7, 8) verlaufenden Mittelebene (PP′) umgeschlagen ist,
    - der Längsabschnitt (28, 28a, 28b) in seiner eigenen Umschlagebene ausgezogen und umgebogen wird, damit die Schleife (30) sich in einer Ebene parallel zur Mittelebene (PP′) erstreckt.
  2. Trennschaltervorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß zwei Stromschleifen (30c, 30b) zwischen den Endabschnitten (14, 17) zu beiden Seiten einer Mittelebene (PP′) verlaufen, die durch die Kontakte (8, 7) und den Deflektor (19) verläuft.
  3. Trennschaltervorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß eine Wurzel (15a) eines aufsteigenden Zweigs (15) der Stromschleife (30) sich ausgehend vom ersten Abschnitt (14, 12) in einer Richtung im wesentlichen parallel zur Verschieberichtung (XX′) des beweglichen Kontakts (4) ausbildet und im wesentlichen in einer Halbebene (V, V′) verläuft, die weder die Kontakte (5, 6, 7, 8) noch den Deflektor (19) enthält.
  4. Trennschaltervorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß diese Wurzel (15a) an den den festen Kontakt (5) aufnehmenden ersten Abschnitt (12) über eine umgebogene Klaue (14) angesetzt ist, die auf der diesem Kontakt in Bezug auf den beweglichen Kontakt (5) entgegengesetzten Seite angeordnet ist.
  5. Trennschaltervorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß diese Wurzel (38c, 38d) in der Ebene (Q) eines ersten Abschnitts (31) entsteht.
  6. Trennschaltervorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Stromschleife(n) (30, 30c, 30b) in entgegengesetzten seitlichen Aussparungen (71, 72) eines Gehäuses (50) angeordnet sind, das durch die Zusammenfügung zweier entlang einer Verbindungsebene (WW′), die im wesentlichen parallel zu diesen Schleifen ist und durch den festen Kontakt (8) verläuft, zusammengefügter Schalen (52, 53) mit einem Sockel (54) gebildet wird, und in Kerben (75, 76) bzw. Rändern von Aussparungen (58, 59) gehalten werden, die die Endabschnitte (12, 14) bzw. (17) aufnehmen.
EP90402519A 1989-09-19 1990-09-13 Schaltervorrichtung mit Lichtbogenbildung fördernden Stromschleifen Expired - Lifetime EP0419324B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8912286 1989-09-19
FR8912286A FR2652199B1 (fr) 1989-09-19 1989-09-19 Dispositif interrupteur avec boucles de courant assistant le developpement de l'arc.

Publications (2)

Publication Number Publication Date
EP0419324A1 EP0419324A1 (de) 1991-03-27
EP0419324B1 true EP0419324B1 (de) 1995-03-22

Family

ID=9385646

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90402519A Expired - Lifetime EP0419324B1 (de) 1989-09-19 1990-09-13 Schaltervorrichtung mit Lichtbogenbildung fördernden Stromschleifen

Country Status (5)

Country Link
US (1) US5142111A (de)
EP (1) EP0419324B1 (de)
JP (1) JPH03133015A (de)
DE (1) DE69017992T2 (de)
FR (1) FR2652199B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19956656A1 (de) * 1999-11-25 2001-05-31 Moeller Gmbh Strombegrenzende Kontaktanordnung
DE10058419C1 (de) * 2000-11-24 2002-06-06 Moeller Gmbh Leistungsschutzschalter
DE19963515B4 (de) * 1998-12-28 2005-10-06 Korea Electrotechnology Research Institute, Changwon Kontaktteil einer Lichtbogenlöschkammer eines elektrischen Ausschalters

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5313031A (en) * 1990-12-28 1994-05-17 Mitsubishi Denki Kabushiki Kaisha Electric switch gear with improved stationary contact configuration
FR2696273B1 (fr) * 1992-09-25 1994-11-18 Telemecanique Disjoncteur électrique à soufflage magnétique.
FR2714520B1 (fr) * 1993-12-24 1996-01-19 Telemecanique Appareil électrique interrupteur à contacts séparables.
US5417286A (en) * 1993-12-29 1995-05-23 Amoco Corporation Method for enhancing the recovery of methane from a solid carbonaceous subterranean formation
US5424699A (en) * 1994-02-14 1995-06-13 Square D Company Blow-off terminal for a circuit breaker
DE502004007984D1 (de) 2004-07-08 2008-10-16 Abb Schweiz Ag Lichtbogenlöscheinrichtung für Schutzschalter
DE102012112202A1 (de) * 2012-12-13 2014-06-18 Eaton Electrical Ip Gmbh & Co. Kg Polaritätsunabhängiges Schaltgerät zum Führen und Trennen von Gleichströmen

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2555799A (en) * 1947-02-05 1951-06-05 Allis Chalmers Mfg Co Electric switch
US2645693A (en) * 1949-09-13 1953-07-14 Fed Electric Prod Co Molded casing for electrical apparatus
DE1188187B (de) * 1963-01-16 1965-03-04 Stotz Kontakt Gmbh Selbstschalter mit aus zwei Schalenhaelften bestehendem Gehaeuse
SE300250B (de) * 1964-03-03 1968-04-22 Asea Ab
US3483343A (en) * 1966-11-07 1969-12-09 Gen Electric Electric circuit breaker with special arc extinguishing structure
US4112275A (en) * 1973-03-26 1978-09-05 Siemens Aktiengesellschaft Contact structure for electrical switching apparatus
FR2378344A1 (fr) * 1977-01-25 1978-08-18 Telemecanique Electrique Piece de soufflage
FR2422242A1 (fr) * 1978-04-07 1979-11-02 Telemecanique Electrique Chambre de soufflage pour appareil electrique limiteur de courant
US4387281A (en) * 1979-04-06 1983-06-07 La Telemecanique Electrique Arc blowing chamber
JPS5866228A (ja) * 1981-10-16 1983-04-20 富士電機株式会社 しや断器
US4516005A (en) * 1983-09-30 1985-05-07 Siemens-Allis, Inc. Sequenced intermittent blowout coil controller
US4652707A (en) * 1983-12-07 1987-03-24 Mitsubishi Denki Kabushiki Kaisha Power switch
US4511774A (en) * 1983-12-08 1985-04-16 Eaton Corporation Current limiting contact arrangement
US4743720A (en) * 1985-11-25 1988-05-10 Matsushita Electric Works, Ltd. Current limiting circuit interrupter
US4810841A (en) * 1986-07-31 1989-03-07 Siemens Aktiengesellschaft Current-limiting switching element
US4975553A (en) * 1989-02-22 1990-12-04 Square D Company Line terminal and arc stack for a circuit breaker

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19963515B4 (de) * 1998-12-28 2005-10-06 Korea Electrotechnology Research Institute, Changwon Kontaktteil einer Lichtbogenlöschkammer eines elektrischen Ausschalters
DE19956656A1 (de) * 1999-11-25 2001-05-31 Moeller Gmbh Strombegrenzende Kontaktanordnung
DE10058419C1 (de) * 2000-11-24 2002-06-06 Moeller Gmbh Leistungsschutzschalter

Also Published As

Publication number Publication date
EP0419324A1 (de) 1991-03-27
JPH03133015A (ja) 1991-06-06
US5142111A (en) 1992-08-25
DE69017992T2 (de) 1995-07-20
FR2652199A1 (fr) 1991-03-22
DE69017992D1 (de) 1995-04-27
FR2652199B1 (fr) 1994-05-13

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