EP1202304B1 - Dispositif d'extinction d'arc - Google Patents

Dispositif d'extinction d'arc Download PDF

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Publication number
EP1202304B1
EP1202304B1 EP01123056A EP01123056A EP1202304B1 EP 1202304 B1 EP1202304 B1 EP 1202304B1 EP 01123056 A EP01123056 A EP 01123056A EP 01123056 A EP01123056 A EP 01123056A EP 1202304 B1 EP1202304 B1 EP 1202304B1
Authority
EP
European Patent Office
Prior art keywords
arc
arc runner
end piece
plate
electrical switch
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
EP01123056A
Other languages
German (de)
English (en)
Other versions
EP1202304A3 (fr
EP1202304A2 (fr
Inventor
Dietmar Hillebrand
Daniel Dipl.-Ing. Hörner
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 EP1202304A2 publication Critical patent/EP1202304A2/fr
Publication of EP1202304A3 publication Critical patent/EP1202304A3/fr
Application granted granted Critical
Publication of EP1202304B1 publication Critical patent/EP1202304B1/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
    • 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
    • H01H9/46—Means for extinguishing or preventing arc between current-carrying parts using arcing horns

Definitions

  • the invention relates to an arc extinguishing device For example, for circuit breaker or others electrical appliances where arcs between each other spaced or spaced contacts may occur.
  • circuit breaker arises in Case of a short circuit conditional trip or a Manual release under load, if necessary, an arc between two contacts separating, destroying them or damage could result. That's why he sees Prior art, a generic arc extinguishing device before, as for example at a Miniature circuit breaker (hereinafter referred to as circuit breaker) the Applicant himself, or in the LS-switch NLS 10-11 / D63 the company "Schupa" is used.
  • circuit breaker Miniature circuit breaker
  • the fixed contact consists of a hook-shaped curved contact pin, at whose, by the hook shape defined substantially straight section a Contact surface is formed for the movable contact.
  • the hook-shaped fixed contact Opposite the hook-shaped fixed contact is a Bottom plate or arc tray arranged, which is electrically connected to the movable contact.
  • This Arc runner is at a distance from that through the hook shape defined arc portion of the fixed contact arranged such that it is essentially straight from the Fixed contact extends away, reducing the distance between the fixed contact along the arc section and the Arc runner continuously increased, i. of the Arc gap between fixed contact and arc runner is conically widened.
  • the hook tip of the fixed contact closes Splitter stack, which at its top, i. at his top sheet a arc gap with the tip of the hook Are defined.
  • the underside of the laminated core, i. the lowest Splitter plate is at a predetermined distance from the floor panel engaged, which extends along the bottom floor panel extends parallel.
  • the gap between the individual sheets the laminated core or between the bottom plate and the Arc running plate open into a blow-out, the at a upstream section is formed as a labyrinth, the from a plurality of walls of an electrically not conductive material and a kind of flow resistance represents.
  • the labyrinth finally leads to one Downstream region of the blow-out to an outlet, the in the case of the circuit breaker as a through hole in Switch housing is formed.
  • Such a switching device is also disclosed in document DE 43 26 922.
  • an arc extinguishing device for electrical Devices to create, by means of a high reliability is reachable for the electrical device.
  • the arc extinguishing device for electrical appliances with spaced apart or spaced contacts an arc runner that with a the contacts is electrically connected, a splitter stack, the essentially between the arc runner and the another contact is arranged as well as one to the Splitter package adjoining exhaust duct.
  • the arc running plate is above the Splitter stack before, such that an end portion of Arc runner plate at least in an upstream Section of the blow-out channel protrudes.
  • the arc runner works in the Blow-out as a kind of heat shield, which heat within of the blow-out channel and thus the housing of the electrical device, preferably made of plastic is, protects against a meltdown.
  • the projecting into the exhaust duct section of the Arc run sheet forms a tail, which in the blow-out channel is integrated.
  • the purpose of this technical Measure is to metal particles, which in the ionized gas are "capture" and thus the Housing of the electrical device as well as electrical Components within the housing from damage too protect.
  • This "catching effect" of the tail can be increased, in this according to the advantageous development according to claim 3 is formed into a plate in which at least one Through opening or notch is formed.
  • the development according to claim 4 provides that the projecting into the blow-out section of the Arc runner is fixed to a parallel distance to maintain the laminated core.
  • the projecting into the blow-out section of the Arc runner is fixed to a parallel distance to maintain the laminated core.
  • Fig. 1 has an arc extinguishing device according to a preferred embodiment the invention, an arc tray 1, a laminated core 2 and a blow-out 3.
  • the arc runner 1 forms its one free end section a tail 4, which in the Blow-out channel 3 protrudes.
  • the arc extinguishing device according to the invention built into a circuit breaker, taking at this point It is expressly noted that such others electrical appliances different to the example illustrated LS-switch with the arc extinguishing device can be equipped according to the invention, in which between Contacts arcs may occur.
  • the LS switch shown as an example consists of two shell-like housing halves preferably of one Plastic material (only one half of the housing is shown in Figs. shown), which between them a number of switches pick up specific electrical elements.
  • MCB This genus are from the prior art, for example according to the publications mentioned at the beginning known, the hereby also to the subject of this application is made, so at this point in terms of construction and the function of these elements on the corresponding ones Publications can be referenced.
  • a generic circuit breaker has a stationary, i. fixed to the housing contact 5 (hereafter referred to as a fixed contact) and a movable, i. at the Housing preferably rotatably mounted contact (not closer ) Shown.
  • a fixed contact a movable contact i. at the Housing preferably rotatably mounted contact (not closer ) Shown.
  • the movable contact is impulsively from the fixed contact lifted and snaps independently in its release position.
  • the arc runner 1 is as well as from the prior Technique well known regarding an imaginary Connecting line between the fixed contact 5 and the movable Contact at an angle. That the arc runner 1 forms with respect to the fixed contact an arc gap S, the near a contact surface of the fixed contact 5 its lowest Has width and then moves away from the movable Contact continuous (not necessarily linear) expands. Following the fixed contact 5 in the area of Arc gap S with the largest width is the laminated core 2 arranged. This consists of a plurality of parallel spaced, held apart insulated sheet metal plates 8, causing gaps between the individual plates. The exact arrangement of the laminated core 2 is from the beginning described prior art also well known, so that will not be discussed at this point got to.
  • the arc runner 1 itself extends below the laminated core 2 with a predetermined parallel distance to a bottom sheet metal plate of the package 2 on. For this is the arc runner 1 near an edge of the lowest Metal plate approximately at the height of the fixed contact 5 in the blunt Angle (position 9) bent and under the laminated core 2 guided.
  • the baffles 10 are at both Housing halves formed such that they during assembly come together and each with a wall train together.
  • the baffles 10 of the labyrinth 11 are while in a section of the blow-out channel 3 along the Arc running plate 1 seen aligned so that a groove-shaped recess or notch 13 in the depth direction arises as the clamping receptacle for the arc runner. 1 is provided.
  • the arc runner 1 is above the downstream edge of the laminated core 2 at least in the upstream, formed to the labyrinth 11 area of Blow-out duct 3 extends and forms at its downstream End of the tail 4, which is received in the notch 13 and is fixed by the resulting clamping action.
  • This End piece 4 also forms a guide wall or a Stromleitblech as an integral part of Labyrinths 11. At this point it should be noted that the tail 4 also on the labyrinth 11 out in the Outlet duct 3 can be performed.
  • Figs. 3 to 6 are a number of possible designs of the tail 4 shown. Consequently, the tail 4 also as a plate (preferably rectangular) formed in the at least one through hole 14th and / or at least one notch 15 preferably on the downstream edge of the plate is excluded.
  • FIGS. 4 and 6 are against closed passage openings 14 in the end piece 4th provided, wherein the openings in Fig. 4 as parallel spaced longitudinal slots and in Fig. 6 as a perforated grid training holes are provided.
  • the housing is not necessarily must consist of two halves but also can be one-piece, the labyrinth by appropriate Wall inserts can be formed. It is not required that one of the contacts as a moving contact is trained. Rather, it may be that between Fixed contacts an arc is likely and therefore the arc extinguishing device according to the invention used becomes.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Discharge Heating (AREA)

Claims (7)

  1. Appareil de coupure électrique équipé d'un dispositif d'extinction d'arc électrique qui comprend les éléments suivants :
    des contacts éloignés ou pouvant être éloignés l'un de l'autre, parmi lesquels un contact est relié électriquement à une tôle de captage d'arc (1), un paquet de tôles d'extinction d'arc (2), qui est disposé entre la tôle de captage d'arc (1) et un canal de soufflage d'arc (3), la tôle de captage d'arc (1) s'étendant au-delà du paquet de tôles d'extinction d'arc (2) et pénétrant avec sa partie d'extrémité (4) au moins dans une portion amont du canal de soufflage d'arc (3),
    caractérisé en ce que la portion amont du canal de soufflage d'arc (3) est conformée en labyrinthe (11), dont au moins une paroi de labyrinthe est formée par la partie d'extrémité (4) de la tôle de captage d'arc (1), la partie d'extrémité (4) de la tôle de captage d'arc (1) constituant une tôle conductrice du courant électrique en contact avec les gaz de combustion du disjoncteur qui fait partie intégrante du labyrinthe (11).
  2. Appareil de coupure électrique selon la revendication 1, caractérisé en ce que la partie d'extrémité (4) est intégrée dans le canal de soufflage d'arc (3).
  3. Appareil de coupure électrique selon la revendication 1, caractérisé en ce que la partie d'extrémité (4) est une plaque avec au moins une ouverture de passage (14) ou une encoche (15).
  4. Appareil de coupure électrique selon la revendication 1, caractérisé en ce que la portion de la tôle de captage d'arc (1) qui fait saillie dans le canal de soufflage d'arc (3) est tenue aux fins de maintenir un jeu parallèle par rapport au paquet de tôles (2).
  5. Appareil de coupure électrique selon la revendication 4, caractérisé en ce que la fixation a lieu sur un boítier de l'appareil électrique.
  6. Appareil de coupure électrique selon la revendication 5, caractérisé en ce que le boítier, sur sa face intérieure forme une fente de serrage (13), dans laquelle la portion de la tôle de captage (1) qui fait saillie dans le canal de soufflage d'arc, de préférence la partie d'extrémité (4), peut être insérée au moment de l'assemblage.
  7. Appareil de coupure électrique selon la revendication 6, caractérisé en ce que le boítier est constitué de deux parties de boítier qui comportent chacune une fente de serrage (13) et bloquent ainsi la portion de la tôle de captage (1) qui fait saillie dans le canal de soufflage d'arc (3) et maintiennent un jeu parallèle par rapport au paquet de tôles (2).
EP01123056A 2000-09-28 2001-09-26 Dispositif d'extinction d'arc Expired - Lifetime EP1202304B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10048328 2000-09-28
DE10048328A DE10048328C2 (de) 2000-09-28 2000-09-28 Lichtbogen-Löscheinrichtung

Publications (3)

Publication Number Publication Date
EP1202304A2 EP1202304A2 (fr) 2002-05-02
EP1202304A3 EP1202304A3 (fr) 2002-10-02
EP1202304B1 true EP1202304B1 (fr) 2005-12-14

Family

ID=7658122

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01123056A Expired - Lifetime EP1202304B1 (fr) 2000-09-28 2001-09-26 Dispositif d'extinction d'arc

Country Status (4)

Country Link
EP (1) EP1202304B1 (fr)
AT (1) ATE313148T1 (fr)
DE (2) DE10048328C2 (fr)
ES (1) ES2254299T3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10250950B4 (de) 2002-10-25 2004-10-28 Siemens Ag Niederspannungs-Leistungsschalter
DE102009023556B4 (de) * 2009-05-30 2012-01-19 Abb Ag Elektrisches Schaltgerät mit einem thermischen Auslöser
DE102009056190B3 (de) 2009-11-27 2011-05-12 Abb Ag Lichtbogenlöscheinrichtung und Schaltgerät
DE102009056480B4 (de) 2009-12-01 2011-12-08 Abb Ag Installationsschaltgerät mit einer Lichtbogenlöscheinrichtung
EP2591485A1 (fr) * 2010-07-08 2013-05-15 Larsen & Toubro Limited Ensemble tube à arc perfectionné à utiliser dans des disjoncteurs à boîtier moulé
DE102010034264B3 (de) * 2010-08-13 2012-02-23 Abb Ag Installationsschaltgerät mit einer Lichtbogenlöscheinrichtung
CN107171191B (zh) 2016-03-07 2021-02-26 Abb瑞士股份有限公司 具有互连的排气系统的开关装置封壳
RU179416U1 (ru) * 2017-08-22 2018-05-15 Открытое акционерное общество "ВНИИР-Прогресс" Искрогасительная пластина автоматического выключателя

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619241C2 (de) * 1986-06-07 1994-07-21 Kloeckner Moeller Gmbh Löscheinrichtung für einen Leitungsschutzschalter
DE3619240A1 (de) * 1986-06-07 1987-12-10 Kloeckner Moeller Elektrizit Leitungsschutzschalter mit einer eine blaseinrichtung bildenden kontaktanordnung
DE3940289A1 (de) * 1989-12-06 1991-06-13 Klein Kg Elektro Geraete G Kuehlkoerper fuer geraete der elektrotechnik
DE4326922C1 (de) * 1993-08-11 1994-11-17 Kloeckner Moeller Gmbh Lichtbogenkammer für elektrische Schaltgeräte
TW288116B (en) * 1996-04-13 1996-10-11 Ling-Bo Sheu Heat sink having ventilating holes
DE19643643B4 (de) * 1996-10-22 2005-09-08 Heinrich Kopp Ag Leitungsschutzschalter mit Lichtbogenlöschkammer und Entionisierungseinrichtung
DE29720715U1 (de) * 1997-11-21 1998-01-22 Siemens AG, 80333 München Schaltgerät mit Lichtbogen-Löscheinrichtung

Also Published As

Publication number Publication date
ES2254299T3 (es) 2006-06-16
ATE313148T1 (de) 2005-12-15
DE10048328C2 (de) 2003-01-23
DE50108375D1 (de) 2006-01-19
EP1202304A3 (fr) 2002-10-02
EP1202304A2 (fr) 2002-05-02
DE10048328A1 (de) 2002-05-02

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