EP1298687B1 - Dispositif d'extinction d'arc pour appareils de coupure à basse tension - Google Patents

Dispositif d'extinction d'arc pour appareils de coupure à basse tension Download PDF

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Publication number
EP1298687B1
EP1298687B1 EP02090180A EP02090180A EP1298687B1 EP 1298687 B1 EP1298687 B1 EP 1298687B1 EP 02090180 A EP02090180 A EP 02090180A EP 02090180 A EP02090180 A EP 02090180A EP 1298687 B1 EP1298687 B1 EP 1298687B1
Authority
EP
European Patent Office
Prior art keywords
arc quenching
cover
quenching device
arc
quenching
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 - Fee Related
Application number
EP02090180A
Other languages
German (de)
English (en)
Other versions
EP1298687A2 (fr
EP1298687A3 (fr
Inventor
Michael Bach
Detlev Schmidt
Guenter Seidler-Stahl
Ingo Thiede
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 EP1298687A2 publication Critical patent/EP1298687A2/fr
Publication of EP1298687A3 publication Critical patent/EP1298687A3/fr
Application granted granted Critical
Publication of EP1298687B1 publication Critical patent/EP1298687B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes
    • 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
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/36—Metal parts
    • H01H9/362—Mounting of plates in arc chamber

Definitions

  • the invention relates to an arc quenching device for a switching in air low-voltage switching device, with a quenching extinguishing space and with a quenching space, provided with outlet openings for switching gases lid, as well as with an optional separate, deionizing means having cooling device for the switching gases.
  • Each arc quenching chamber generally includes a plurality of quenching plates disposed between two sidewalls, which contribute to the cooling and extinguishing of the arc. Above the quenching plates there is a cover with outlet openings for switching gases.
  • the installation locations of low-voltage circuit breakers can be very different. It depends on this, what temperature and what degree of ionization that from the arc extinguishing equipment may have exiting switching gases.
  • arc quenching systems are manufactured in a standard design for standard requirements, which can be supplemented if necessary by a separate cooling device for the switching gases. It may happen that a need for improved cooling of the switching gases turns out after the establishment of a switchgear, z. B. due to a change in operation or due to the use of other consumers with the result that it comes to circuits with higher power and a correspondingly larger amount of switching gases.
  • the additional cooling device consists of an attachment for each of the extinguishing chambers of a circuit breaker.
  • Each attachment has a frame-like housing body and deionization means arranged therein in the form of wire mesh, perforated sheets or the like.
  • EP 0 437 151 A discloses an arc quenching device for a low-voltage switchgear according to the preamble of claim 1.
  • the object of the invention is based on an arc quenching device according to the DE 35 41 514 C2 It is to provide an arc quenching device with a mountable on demand additional cooling device that does not increase the overall volume of the circuit breaker.
  • the cooling device can be supplemented by a cover plate and a bottom plate to form an insert cassette, which forms a cavity for introducing the deionizing agent, wherein passage openings for the switching gases are provided in the cover plate and the bottom plate.
  • the cooling device obtains a favorable design for the retrofitting which is desired if required.
  • this design offers the possibility of influencing the cooling effect independently of the deionizing agents provided, for example, in the form of metal meshes or metal screens. This can be done by the passage openings have a circular or polygonal cross-section or in that they are slit-like.
  • cooling device and the lid of the arc quenching device are provided on its side facing the quenching plates with cooperating fasteners and that the cooling device if necessary before mounting the cover to the arc quenching means by means of the fastening means on the inside of the Cover is to be attached.
  • this form-locking fasteners, z. B. in such a way that the fastening means are designed as receiving openings in the lid of the arc quenching device and as arranged on the cover plate of the insert cassette and intended for insertion into the said receiving openings fastening pins.
  • the dimensions of the receiving openings and the mounting pins are coordinated such that when inserting the mounting pins in the receiving openings a frictional engagement for securing against slipping out.
  • This can be effected in that the fastening pins are slotted and resilient to generate the frictional engagement.
  • the fastening means for the cooling device can also be designed as moldings and outgoing therefrom guide rails for insertion of the cooling device designed as a cartridge.
  • Fig. 1 shows a perspective view, partially in section, of an embodiment of an arc quenching device according to the invention.
  • FIG. 2 shows a perspective view of a first embodiment of a lid for an inventive arc quenching device.
  • FIG 3 shows a perspective view of a first embodiment of an insert cassette for an inventive arc quenching device.
  • FIG. 4 shows a perspective view of another embodiment of a lid for an inventive arc quenching device.
  • FIG. 5 shows a perspective view of a further embodiment of an insert cassette for an inventive Arc quenching device.
  • Fig. 1 shows in perspective view, partially in section, an embodiment of an arc quenching device 1 according to the present invention. It consists of insulating walls 2, 3 made of fiber or erosion-resistant plastic and quenching plates 4 with pins 5, which are inserted and caulked into holes 6 of the insulating walls 2, 3. This results in a splitter stack 7, which is inserted into the extinguishing chamber integrated in the switch housing. It also has a final cover 8, which has a simple construction with exhaust slots 9 and is provided with an insert cassette 10 as additional protection against the escape of hot gases and particles on its inside.
  • This insert cassette 10 is fixed by means of a prepared holder on the inside of the lid 8 of the arc quenching device 1.
  • projections 11 are provided, which laterally disposed thereon projecting webs 12, which engage in slots 13 of the insulating walls 2, 3 of the splitter stack 7.
  • a passage opening 14 is provided for a fastening screw, not shown, by means of which the arc quenching device 1 is mounted in the integrated quenching chamber of the switching device.
  • FIG. 2 shows a perspective view of a first advantageous embodiment of a cover 8 for an inventive arc quenching device 1. It has outlet openings 9, a passage opening 14 for a not shown Fixing screw, projections 11 with laterally disposed projecting webs 12, for engaging in slots 13 of the insulating walls 2, 3 of the splitter stack 7 and receiving openings 15, 16, 17, 18, in which mounting pins 19, 20, 21, 22 (FIG ) are insertable.
  • the projections 11 which serve to receive the projecting webs 12 have a triangular cross section, such that they form a guide when the insert cassette 10 is introduced.
  • FIG. 3 shows a perspective view of a first embodiment of an insert cassette 10 for an inventive arc quenching device 1. It consists essentially of a cover plate 23, a bottom plate 24 and side walls 25, 26, which form a cavity for inserting metal screens 27 as deionization. In the cover plate 23 and the bottom plate 24 are in the flow direction of the switching gases passage openings 28; 29 provided, which have a circular cross-section. Furthermore, on the cover plate 23 mounting pins 19, 20, 21, 22 are arranged, which are introduced during assembly of the insert cartridge 10 in the receiving openings 15, 16, 17, 18 of the lid 8 of the arc quenching device, as indicated by the dash-dotted arrows is.
  • Fig. 4 shows a perspective view of another embodiment of a lid 30 for an inventive arc quenching device 1. He has outlet 31, a passage opening 32 for a fastening screw, not shown, and projections 33 with laterally projecting webs 34 for engaging in slots 13 of the insulating walls 2, 3 of the splitter stack 7 on.
  • the projections 33 for receiving the projecting webs 34 in the form of guide rails 35, 36 are formed, in which the insert cassette 37 (Fig. 5) is inserted.
  • FIG. 5 shows a perspective view of another embodiment of an insert cassette 37 for an inventive arc quenching device 1. It consists essentially of a cover plate 38, a bottom plate 39 and side walls 40, 41, which form a cavity for inserting metal screens 42 as deionizing , In the cover plate 38 and the bottom plate 39 through openings 43, 44 are provided in the flow direction of the switching gases, which are formed slit-shaped in this embodiment.
  • the insert cassette according to the invention is very easy to install when needed and does not cause an increase in the volume of the circuit breaker.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Furnace Details (AREA)

Claims (11)

  1. Dispositif (1) d'extinction d'arc électrique pour un appareil de coupure à basse tension à coupure dans l'air, comprenant une chambre d'extinction ayant une tôle (4) d'extinction et un couvercle (8 ; 30) recouvrant la chambre d'extinction et muni d'ouvertures (9 ; 31) de sortie des gaz de coupure, ainsi qu'un dispositif (10 ; 37) de refroidissement des gaz de coupure pouvant être utilisé à volonté, séparé, de type à cadre et ayant des moyens de désionisation, les tôles (4) d'extinction étant soutenues indépendamment du couvercle (8 ; 30),
    caractérisé
    en ce que le dispositif (10 ; 37) de refroidissement séparé est constitué pour la réception des moyens (27 ; 42) de désionisation, de façon appropriée pour le montage à l'intérieur du dispositif (1) d'extinction d'arc électrique entre les tôles (4) d'extinction et le couvercle (8 ; 30).
  2. Dispositif d'extinction d'arc électrique suivant la revendication 1,
    caractérisé
    en ce que le dispositif (10 ; 37) de refroidissement est complété par une plaque (23 ; 38) de couverture et par une plaque (24 ; 39) de fond en une cassette d'insertion qui forme une cavité pour l'introduction des moyens (27 ; 42) de désionisation, et en ce qu'il est prévu dans la plaque (23 ; 38) de couverture et dans la plaque (24 ; 39) de fond des ouvertures (28, 29 ; 43, 44) de passage des gaz de coupure.
  3. Dispositif d'extinction d'arc électrique suivant la revendication 2,
    caractérisé
    en ce que les ouvertures (28, 29) de passage ont une section transversale circulaire ou polygonale.
  4. Dispositif d'extinction d'arc électrique suivant la revendication 2 ou 3,
    caractérisé
    en ce que les ouvertures (43 ; 44) de passage sont constituées sous la forme de fentes.
  5. Dispositif d'extinction d'arc électrique suivant l'une des revendications précédentes,
    caractérisé
    en ce que les moyens (27 ; 42) de désionisation sont des toiles métalliques ou des tamis métalliques.
  6. Dispositif d'extinction d'arc électrique suivant l'une des revendications précédentes,
    caractérisé
    en ce que le dispositif (10 ; 37) de refroidissement, ainsi que le couvercle (8 ; 30) du dispositif (1) d'extinction d'arc électrique sont munis, sur leur côté tourné vers les tôles (4) d'extinction, de moyens coopérants de fixation, et en ce que le dispositif (10 ; 37) de refroidissement peut, en cas de besoin, avoir le montage du couvercle (8 ; 30) sur le dispositif (1) d'extinction d'arc électrique, être mis sur le côté intérieur du couvercle (8 ; 30) à l'aide des moyens de fixation.
  7. Dispositif d'extinction d'arc électrique suivant la revendication 5,
    caractérisé
    en ce que les moyens de fixation sont constitués sous la forme d'ouvertures (15, 16, 17, 18) de réception du couvercle (8) du dispositif (1) d'extinction d'arc électrique et sous la forme de chevilles (19, 20, 21, 22) de fixation disposées sur la plaque (23) de couverture de la cassette (10) à insertion et destinées à être introduites dans lesdites ouvertures (15, 16, 17, 18) de réception.
  8. Dispositif d'extinction d'arc électrique suivant la revendication 7,
    caractérisé
    en ce que les dimensions des ouvertures (15, 16, 17, 18) de réception et des chevilles (19, 20, 21, 22) de fixation sont adaptées les unes aux autres, de façon à assurer une liaison par frottement empêchant de sortir par glissement lors de l'introduction des chevilles (19, 20, 21, 22) de fixation dans les ouvertures (15, 16, 17, 18) de réception.
  9. Dispositif d'extinction d'arc électrique suivant la revendication 8,
    caractérisé
    en ce que les chevilles (19, 20, 21, 22) de fixation sont, pour produire la liaison de frottement, fendues et constituées élastiquement.
  10. Dispositif d'extinction d'arc électrique suivant la revendication 7,
    caractérisé
    en ce que les moyens de fixation sont constitués sous la forme de conformations (33) et de rails (35, 36) de guidage en partante pour l'insertion de la cassette (37) d'insertion.
  11. Dispositif d'extinction d'arc électrique suivant l'une des revendications précédentes,
    caractérisé
    en ce que la tôle (4) d'extinction et le couvercle (8 ; 30) sont fixés sur des plaques (2, 3) isolantes disposées conjointement et parallèlement l'une à l'autre, qui reçoivent la tôle (4) d'extinction et le couvercle (8 ; 30) entre elles, des réglettes (12, 34) en saillie vers l'extérieur étant disposées sur les conformations (33) du couvercle (30) et des fentes (13) recevant les réglettes (12, 14) étant ménagées dans les plaques (2, 3) isolantes.
EP02090180A 2001-09-28 2002-05-23 Dispositif d'extinction d'arc pour appareils de coupure à basse tension Expired - Fee Related EP1298687B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10149019 2001-09-28
DE10149019A DE10149019C1 (de) 2001-09-28 2001-09-28 Lichtbogenlöscheinrichtung für Niederspannungs-Schaltgeräte

Publications (3)

Publication Number Publication Date
EP1298687A2 EP1298687A2 (fr) 2003-04-02
EP1298687A3 EP1298687A3 (fr) 2004-12-15
EP1298687B1 true EP1298687B1 (fr) 2007-11-07

Family

ID=7701406

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02090180A Expired - Fee Related EP1298687B1 (fr) 2001-09-28 2002-05-23 Dispositif d'extinction d'arc pour appareils de coupure à basse tension

Country Status (3)

Country Link
US (1) US6784393B2 (fr)
EP (1) EP1298687B1 (fr)
DE (2) DE10149019C1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004037294A1 (de) * 2004-07-27 2006-03-23 Siemens Ag Lichtbogen-Löscheinrichtung sowie Niederspannungs-Leistungsschalter mit einer Leichtbogen-Löscheinrichtung
US7034242B1 (en) * 2004-11-09 2006-04-25 Eaton Corporation Arc chute and circuit interrupter employing the same
DE102005043396A1 (de) 2005-09-08 2007-03-15 Siemens Ag Auswechselbare Löschblechkassette für einen Leistungsschalter sowie Leistungsschalter mit auswechselbarer Löschblechkassette
CZ301022B6 (cs) * 2006-01-25 2009-10-14 Oez, S. R. O. Zhášecí komora pro elektrické prístroje, zvlášte jistice
US7488915B2 (en) 2006-09-20 2009-02-10 Eaton Corporation ARC baffle, and ARC chute assembly and electrical switching apparatus employing the same
DE102007028204A1 (de) * 2007-06-15 2008-12-18 Siemens Ag Leistungsschalter mit Schaltgaskühlung
EP2214189A1 (fr) 2009-02-02 2010-08-04 Siemens Aktiengesellschaft Commutateur, notamment commutateur de puissance doté d'un dispositif de tôle d'effacement bi-fonctionnel
EP2573783B1 (fr) * 2011-09-21 2017-03-08 Siemens Aktiengesellschaft Dispositif de chambre d'extinction pour commutateurs électromagnétiques
US9153399B2 (en) 2013-11-15 2015-10-06 Eaton Corporation ARC baffling device
US10134537B2 (en) * 2015-02-17 2018-11-20 Abb Schweiz Ag Filter assembly for a circuit breaker arc chamber
WO2016197310A1 (fr) * 2015-06-09 2016-12-15 伊顿电力设备有限公司 Absorbeur d'énergie d'arc électrique utilisé pour une armoire électrique
FR3049386B1 (fr) * 2016-03-24 2018-04-20 Schneider Electric Industries Sas Appareil electrique de coupure d'un courant electrique dans l'air comportant un dispositif de filtrage des gaz de coupure ameliore
FR3065316B1 (fr) * 2017-04-14 2019-07-05 Schneider Electric Industries Sas Dispositif de filtrage de gaz de coupure pour un appareil de coupure d'un courant electrique et appareil de coupure d'un courant electrique comportant ce dispositif de filtrage
GB2577635B (en) * 2017-06-17 2020-08-19 Shenzhen Airuixing Ind Design Co Ltd Arc quenching plate and arc quenching unit with such arc quenching plate and switching device with such arc quenching unit
FR3069699B1 (fr) 2017-07-26 2019-09-06 Schneider Electric Industries Sas Dispositif de filtrage de gaz de coupure et appareil de coupure d'un courant electrique comprenant un tel dispositif de filtrage
FR3073974B1 (fr) * 2017-11-23 2019-12-20 Schneider Electric Industries Sas Disjoncteur multipolaire a basse tension
US11177089B2 (en) * 2019-12-20 2021-11-16 Gong Zhu Switching device

Family Cites Families (9)

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FR2461349A1 (fr) * 1979-07-12 1981-01-30 Merlin Gerin Chambre de coupure perfectionnee pour disjoncteur basse tension multipolaire a boitier moule
DE3541514A1 (de) * 1985-11-21 1987-05-27 Siemens Ag Lichtbogenloeschkammer mit einem aufsatz zur weiteren abkuehlung austretender gase
US4982174A (en) * 1988-09-02 1991-01-01 Carlingswitch, Inc. Molded split case electromagnetic circuit breaker assembly
FR2655770B1 (fr) * 1989-12-11 1995-10-20 Merlin Gerin Disjoncteur multipolaire a filtre des gaz commun aux differents poles.
DE4333278A1 (de) * 1993-09-24 1995-03-30 Siemens Ag Leistungsschalter mit einer Lichtbogenlöscheinrichtung
DE4410108C2 (de) * 1994-03-21 1996-08-22 Siemens Ag Lichtbogenlöschkammer mit drei Barrieren für den Durchtritt von Lichtbogengasen
FR2750531B1 (fr) * 1996-06-28 1998-08-07 Schneider Electric Sa Dispositif de desionisation des gaz notamment des gaz de coupure dans une chambre d'extinction d'arc d'un disjoncteur basse tension a boitier moule et chambre d'extinction d'arc equipee de ce dispositif
DE19814411C1 (de) * 1998-03-31 1999-07-15 Moeller Gmbh Elektromagnetisches Schaltgerät mit Löschkammern
DE29807119U1 (de) * 1998-04-09 1998-06-18 Siemens AG, 80333 München Niederspannungs-Leistungsschalter mit einer Lichtbogenlöscheinrichtung

Also Published As

Publication number Publication date
US20030062341A1 (en) 2003-04-03
US6784393B2 (en) 2004-08-31
EP1298687A2 (fr) 2003-04-02
EP1298687A3 (fr) 2004-12-15
DE10149019C1 (de) 2003-06-18
DE50211159D1 (de) 2007-12-20

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