EP1017072A2 - Elektrisches Schaltgerät, insbesondere Leistungsschutzschalter - Google Patents
Elektrisches Schaltgerät, insbesondere Leistungsschutzschalter Download PDFInfo
- Publication number
- EP1017072A2 EP1017072A2 EP99124510A EP99124510A EP1017072A2 EP 1017072 A2 EP1017072 A2 EP 1017072A2 EP 99124510 A EP99124510 A EP 99124510A EP 99124510 A EP99124510 A EP 99124510A EP 1017072 A2 EP1017072 A2 EP 1017072A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- arc
- distance
- contact piece
- switching device
- wall sections
- 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.)
- Granted
Links
Images
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
- H01H9/346—Details concerning the arc formation chamber
-
- 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
- H01H2009/348—Provisions for recirculation of arcing gasses to improve the arc extinguishing, e.g. move the arc quicker into the arcing chamber
-
- 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
Definitions
- the invention relates to an electrical sound device, in particular a circuit breaker, according to the preamble of claim 1.
- the quenching device in which the arc is finally extinguished includes several at a distance in an arc quenching plate package arranged arc-quenching plates, which from their facing the contact point Edge outgoing recesses that correspond to the switching task narrow towards the back, i.e. in the direction of the arc, causing the arc can more easily enter the arc extinguishing device.
- the one in the area of the contact point The prechamber area in front of the arc extinguishing plates is on both sides covered by insulating plates, which are usually made of ceramic; it exists also the possibility that these insulating panels are made of plastic, the at Occurrence of an arc gives off gas, which supports the extinguishing process.
- This Isolierstoffplatten are arranged at a distance from the housing inner walls, so that a flow around the insulating material plates through the arc gases and beyond pressure equalization is also possible.
- the two additional insulation panels require in addition to the parts costs, a corresponding assembly effort, so that the There is a desire to save these insulating material plates.
- the object of the invention is to continue the switching device of the type mentioned improve and without insulation panels an optimal migration of the arc as well to allow pressure equalization in front of and behind the arc.
- the distance to the quenching plates decreases.
- the switchgear is provided with arc extinguishing plates, from the prechamber area facing edge a narrowing in the arc running direction recess goes out, then have the wall sections immediately in front of the release plate package one of the clear width of the recess in the edge area equal or slightly closer distance. At this shorter distance everyone can Wall section have a convex curvature to the other wall section, thereby achieving an improvement in the shape of the nozzle.
- the housing 10 for a circuit breaker is cup-shaped and has a housing wall 11, which extends from walls 12 formed integrally thereon a bowl is added.
- This bowl has recesses 13 and 14 for receiving a connecting terminal and other impressions that are not important here are.
- the reference number 15 denotes the rear bottom wall of the assembled Switching device and in the area of the bottom wall 15 there is a prechamber 16 and behind it a room 17 for receiving an arc quenching plate package, the Conclusion by a perpendicular to the bottom wall 15 and the inner surface comb-shaped end wall 18 is completed, in which there are slots 19 which Make exhaust openings for the hot switching gases.
- the antechamber 16 has an arcuate section 20 from which downstream connects a wall section 21 which runs obliquely and at its in Arc running seen rear end edge 22 a greater distance from the
- the inner surface of the room 17 has the wall section 20. can the wall section 20 lie in the same plane as the inner surface of the room of the area 17.
- the area 17 is the inner wall surface of the housing 10.
- a shoulder 23 In the direction of the arc running seen in front of the wall section 20 is a shoulder 23, which is approximately in the Height of the edge 22; from this paragraph 23 the inner wall falls in a kind of embankment off to section 20; this embankment runs approximately to the edge 22.
- a Shaped guide wall 25 which surrounds the wall section 20 in a horseshoe shape and has a slot 26 located opposite to the direction of arc travel, which with a space 27 between the wall 25 and one Clamping space 13 final boundary wall 28 is formed. How 2, the wall 25 ends at a certain distance from the bottom wall 15, so that arc gases have a return flow path outside the wall 25 according to arrow direction P is made possible.
- the section 25a of the wall lying opposite the bottom wall 15 has a recess 32 through which the movable contact lever 33 of the circuit breaker passes through, on which the movable contact piece 34 is attached.
- the arc baffle extends obliquely within the wall 25 to the inner surface the bottom wall 15 and ends there in an arc guide rail section 29a.
- Section 29a is followed by the arc-quenching plate stack, not shown in the drawing 35 on; the arc extinguishing plates (see below) run parallel to the arc guide rail section 29a.
- the arc base point located on the movable contact piece 34 skips or commutates.
- the resulting on the fixed contact piece 38 The arc base point runs in the direction of arrow P1 to the arc guide rail section 29a and in the arc extinguishing plates 35 in which the arc is extinguished.
- FIG. 3 shows the configuration of the prechamber space.
- two housing shells 10 are provided, which are directed towards each other with their walls 12. This creates the antechamber 16, which initially widens greatly over the embankment 24 into itself opposite wall sections 20.
- the wall sections rise from these 21 on and end in the edges, which, as can be seen from Fig. 3, rounded convex are.
- wall sections 39 which run vertically and the end of the wall sections 21 form in the direction of the arc extinguisher stack 35.
- the arc quenching plate package 35 connects is composed of a plurality of arc extinguishing plates which have a cutout 41 have, which start from the edge 40 directed towards the contact point and themselves rejuvenate in it; the front edge section 40 corresponds on both sides to the recess 41 about the height of the edge 22, measured from the bottom 17; it towers over the front one Edge 40 or the edge section that between the wall section 17 and the recess 41 lies.
- the edges 22 lying immediately in front of the arc-quenching plate stack 35 have the same distance from each other as the clear width of the recesses 41 on the front edge 40 of each baffle. This is located in the area of the wall sections 20 Expansion space is dimensioned so that the movable contact piece 34 at the opening movement crosses this space.
- the facing the fixed contact piece 38 Side of the expansion space as well as the nozzle-shaped narrowing the arc guide rail 29 limits.
- the space behind the tongue 37 is with housing material 42 filled in order to prevent the switching gases from escaping at this point, since a corresponding opening commutation of the arc base would hinder from the movable contact piece 34 on the projection 37.
- the channel 27, as mentioned above, serves as a backflow channel for additional acceleration of the arc. It is crucial that the expansion space begins on the slope directly at the fixed contact piece 38.
- the height of the room between the recess 32 through which the movable contact lever 33 of the circuit breaker passes through less than the distance that the two edges 22 directly Take in front of the arc extinguishers.
- a preferred value for the The height of the cutouts 32 is 1.7 mm; the distance between the two opposite one another Edges is preferably 4.5 mm.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Emergency Protection Circuit Devices (AREA)
- Keying Circuit Devices (AREA)
Abstract
Description
- Fig. 1
- eine Einsicht in ein erfindungsgemäß ausgestattetes Gehäuse,
- Fig. 2
- eine Einsicht in das Gehäuse mit eingebauten Lichtbogenleitschienen und beweglichem Kontaktstück, und
- Fig. 3
- eine Schnittansicht gemäß der Schnittlinie III-III.
Claims (6)
- Elektrisches Schaltgerät, insbesondere Leitungsschutzschalter, mit einer Kontaktstelle mit beweglichem Kontaktstück und feststehendem Kontaktstück, mit einer sich an das feststehende Kontaktstück anschließenden ersten Lichtbogenleitschiene und mit einer zweiten Lichtbogenleitschiene, die an das bewegliche Kontaktstück in dessen Ausschaltstellung anschließt, mit einem zwischen den Lichtbogenleitschienen befindlichen Lichtbogenlöschblechpaket, in das der Lichtbogen beim Ausschalten hineinläuft und darin gelöscht wird, und mit einem Vorkammerraum, dadurch gekennzeichnet, daß der Vorkammerraum von zwei Wandabschnitten (20, 21) begrenzt ist, deren Abstand sich zu den Löschblechen (35) hin verringert.
- Schallgerät nach Anspruch 1, dadurch gekennzeichnet, daß die Wandabschnitte im Bereich der Kontaktstelle einen maximalen Abstand voneinander haben, so daß ein großer Expansionsraum für den Lichtbogen gebildet ist.
- Schaltgerät nach Anspruch 1 oder 2, mit Lichtbogenlöschblechen, von deren dem Vorkammerraum zugewandten Kante eines sich in Lichtbogenlaufrichtung verengende Aussparung anschließt, dadurch gekennzeichnet, daß die Wandabschnitte im Löschblechbereich der lichten Weite der Aussparungen der Löschbleche am Kantenbereich gleichen oder geringfügig geringeren Abstand voneinander besitzen.
- Schaltgerät nach Anspruch 3, dadurch gekennzeichnet, daß die an die vordere Kante der Lichtbogenlöschbleche anschließenden Wandabschnitte (21, 39) eine aufeinanderzu konvexe Krümmung aufweisen.
- Schaltgerät nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß der Vorkammerraum im Bewegungsbereich des beweglichen Kontaktstückes durch die etwa kreisförmigen Wandabschnitte (20) begrenzt ist, deren Abstand voneinander etwa der Höhe des Lichtbogenlöschblechpaketes senkrecht zur Wandinnenfläche des Gehäues entspricht.
- Schaltgerät nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß die Höhe der Aussparung (32), durch die der Kontakthebel (33) hindurchgreift, geringer ist als der Abstand der beiden Kanten (22) unmittelbar vor dem Löschblechbereich.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19860427A DE19860427B4 (de) | 1998-12-28 | 1998-12-28 | Elektrisches Schaltgerät, insbesondere Leitungsschutzschalter |
DE19860427 | 1998-12-28 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1017072A2 true EP1017072A2 (de) | 2000-07-05 |
EP1017072A3 EP1017072A3 (de) | 2001-07-18 |
EP1017072B1 EP1017072B1 (de) | 2007-01-24 |
Family
ID=7892923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99124510A Revoked EP1017072B1 (de) | 1998-12-28 | 1999-12-09 | Elektrisches Schaltgerät, insbesondere Leistungsschutzschalter |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1017072B1 (de) |
AT (1) | ATE352852T1 (de) |
DE (2) | DE19860427B4 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002075760A1 (de) * | 2001-03-20 | 2002-09-26 | Moeller Gebäudeautomation KG | Gehäuse für ein schaltgerät |
EP2804189A1 (de) | 2013-05-17 | 2014-11-19 | Schneider Electric Industries SAS | Trennkammer für ein elektrisches Sicherungsgerät, und diese umfassendes elektrisches Sicherungsgerät |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10131560C1 (de) * | 2001-06-29 | 2003-02-06 | Aeg Niederspannungstech Gmbh | Ausblassystem für eine Plug-in-Komponente |
EP1876617A1 (de) * | 2006-07-06 | 2008-01-09 | ABB PATENT GmbH | Elektrischer Installationsschalter mit Lichtbogen-Vorkammerraum, Lichtbogenleitschienen und strombegrenzende Lichtbogenlöscheinrichtung |
DE102008039152B4 (de) * | 2008-08-21 | 2019-02-14 | Siemens Aktiengesellschaft | Lichtbogen-Löschvorrichtung |
US8164018B2 (en) * | 2009-03-23 | 2012-04-24 | Siemens Industry, Inc. | Circuit breaker arc chambers and methods for operating same |
DE102011090052A1 (de) * | 2011-12-28 | 2013-07-04 | Siemens Aktiengesellschaft | Elektrisches Schaltgerät, insbesondere Kompaktleistungsschalter |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3632926A (en) * | 1970-04-20 | 1972-01-04 | Gen Electric | Current-limiting circuit breaker having arc extinguishing means which includes improved arc initiation and extinguishing chamber construction |
CH521017A (de) * | 1970-06-13 | 1972-03-31 | Siemens Ag | Elektrischer Schalter |
FR2575861A1 (fr) * | 1985-01-07 | 1986-07-11 | Merlin Gerin | Disjoncteur electrique miniature a chambre de formation d'arc |
DE3619241A1 (de) * | 1986-06-07 | 1987-12-10 | Kloeckner Moeller Elektrizit | Loescheinrichtung fuer einen leitungsschutzschalter |
EP0387761A2 (de) * | 1989-03-13 | 1990-09-19 | Licentia Patent-Verwaltungs-GmbH | Selbstschalter, insbesondere Leitungsschutzschalter |
-
1998
- 1998-12-28 DE DE19860427A patent/DE19860427B4/de not_active Expired - Fee Related
-
1999
- 1999-12-09 AT AT99124510T patent/ATE352852T1/de not_active IP Right Cessation
- 1999-12-09 DE DE59914169T patent/DE59914169D1/de not_active Revoked
- 1999-12-09 EP EP99124510A patent/EP1017072B1/de not_active Revoked
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3632926A (en) * | 1970-04-20 | 1972-01-04 | Gen Electric | Current-limiting circuit breaker having arc extinguishing means which includes improved arc initiation and extinguishing chamber construction |
CH521017A (de) * | 1970-06-13 | 1972-03-31 | Siemens Ag | Elektrischer Schalter |
FR2575861A1 (fr) * | 1985-01-07 | 1986-07-11 | Merlin Gerin | Disjoncteur electrique miniature a chambre de formation d'arc |
DE3619241A1 (de) * | 1986-06-07 | 1987-12-10 | Kloeckner Moeller Elektrizit | Loescheinrichtung fuer einen leitungsschutzschalter |
EP0387761A2 (de) * | 1989-03-13 | 1990-09-19 | Licentia Patent-Verwaltungs-GmbH | Selbstschalter, insbesondere Leitungsschutzschalter |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002075760A1 (de) * | 2001-03-20 | 2002-09-26 | Moeller Gebäudeautomation KG | Gehäuse für ein schaltgerät |
CZ301531B6 (cs) * | 2001-03-20 | 2010-04-07 | Moeller Gebäudeautomation KG | Pouzdro obsahující dve poloskorepiny pro spínací zarízení |
EP2804189A1 (de) | 2013-05-17 | 2014-11-19 | Schneider Electric Industries SAS | Trennkammer für ein elektrisches Sicherungsgerät, und diese umfassendes elektrisches Sicherungsgerät |
US9362070B2 (en) | 2013-05-17 | 2016-06-07 | Schneider Electric Industries Sas | ARC extinguishing chamber for an electric protection apparatus and electric protection apparatus comprising same |
RU2649969C2 (ru) * | 2013-05-17 | 2018-04-06 | Шнейдер Электрик Эндюстри Сас | Камера гашения дуги для устройства электрической защиты и устройство электрической защиты, содержащее ее |
Also Published As
Publication number | Publication date |
---|---|
DE19860427B4 (de) | 2006-08-03 |
DE59914169D1 (de) | 2007-03-15 |
DE19860427A1 (de) | 2000-06-29 |
ATE352852T1 (de) | 2007-02-15 |
EP1017072B1 (de) | 2007-01-24 |
EP1017072A3 (de) | 2001-07-18 |
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