EP1202304A2 - Dispositif d'extinction d'arc - Google Patents

Dispositif d'extinction d'arc Download PDF

Info

Publication number: EP1202304A2
Authority: EP; European Patent Office
Prior art keywords: arc; blow; running plate; plate; quenching device
Prior art date: 2000-09-28
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

Application number

EP01123056A

Other languages

German (de)

English (en)

Other versions

EP1202304A3 (fr

EP1202304B1 (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.)

2000-09-28

Filing date

2001-09-26

Publication date

2002-05-02

2001-09-26 Application filed by AEG Niederspannungstechnik GmbH and Co KG filed Critical AEG Niederspannungstechnik GmbH and Co KG

2002-05-02 Publication of EP1202304A2 publication Critical patent/EP1202304A2/fr

2002-10-02 Publication of EP1202304A3 publication Critical patent/EP1202304A3/fr

2005-12-14 Application granted granted Critical

2005-12-14 Publication of EP1202304B1 publication Critical patent/EP1202304B1/fr

2021-09-26 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- H01H9/342—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 miniature circuit breakers or others electrical devices where arcing between each other spaced or spacable contacts can occur.
circuit breaker In the case of a circuit breaker In the event of a short-circuit-triggered operation or one manual triggering under load, if necessary, an arc between two separating contacts, one for their destruction or damage. For this reason, the State of the art a generic arc extinguishing device like, for example, at a Miniature circuit breaker (hereinafter referred to as circuit breaker) Applicant herself, or also in the LS switch NLS 10-11 / D63 the company "Schupa" is used.
circuit breaker Miniature circuit breaker
the fixed contact preferably consists of a hook-shaped curved contact pin, on its, through the hook shape defined an essentially straight section Contact surface for the movable contact is formed.
the hook-shaped fixed contact Opposite the hook-shaped fixed contact is a Floor plate or arc running plate arranged, which is electrically connected to the movable contact.
This Arc running plate is at a distance from that due to the hook shape arranged defined arc section of the fixed contact such that it is essentially continuously from Fixed contact extends away, which increases the distance between the fixed contact along its arc section and the Arc running plate continuously enlarged, i.e. the Arc gap between fixed contact and arc running plate is widened conically.
the bottom of the sheet stack i.e. the lowest Extinguishing sheet is at a predetermined distance from the floor sheet which is along the bottom floor panel extends in parallel.
the gap between the individual sheets of the sheet stack or between the lowest sheet and the Arc runner plate open into a blow-out duct, which on one upstream section is formed as a labyrinth, the from a plurality of walls from one electrically not conductive material and a kind of flow resistance represents.
the labyrinth finally leads to one downstream area of the exhaust duct to an outlet which in the case of the circuit breaker as a through hole in Switch housing is formed.
the arc extinguishing device for electrical devices with spaced or spaced contacts an arc running plate that with a the contacts are electrically connected, a baffle plate package that essentially between the arc runner and the another contact is arranged as well as one to the Extinguishing sheet package adjoining exhaust duct.
the arc running plate is above the Extinguishing sheet package before, such that an end portion of the Arc running plate at least in an upstream Section of the exhaust duct protrudes.
the arc running plate works in the Exhaust duct as a kind of heat shield, which heat inside of the blow-out channel and thus the housing of the electrical device, preferably made of plastic protects against melting.
the section of the Arc running plate forms an end piece, which is preferably in the exhaust duct is integrated.
the purpose of this technical Measure consists of metal particles in the ionized gas are "trapped" and thus that Housing of the electrical device as well as electrical Components inside the housing from damage protect.
This "trapping effect" of the end piece can be increased in which this according to the advantageous development according to claim 4 is formed into a plate in which at least one Through opening or notch is formed.
the training according to claim 6 provides that the section of the Arc running plate is fixed to a parallel distance to keep the laminated core. In this way, through the fixed positioning of the arc running plate, especially in his tail area forces, for example, at Short circuit due to rapid changes in heat due to voltages arise in the material, intercepted and thus the distances between the arc running plate and the laminated core or opposite contact are maintained.
Fig. 1 has an arc extinguisher according to a preferred embodiment the invention, an arc running plate 1, a laminated core 2 and a blow-out duct 3.
the arc running plate 1 forms its a free end section an end piece 4, which in the Blow-out duct 3 protrudes.
the arc extinguishing device according to the invention is present built into a circuit breaker, at this point it is expressly pointed out that such others electrical devices different from the example LS switch shown with the arc extinguishing device can be equipped according to the invention, in which between Contact arcing can occur.
the circuit breaker shown as an example consists of two shell-like housing halves preferably from one Plastic material (only one housing half is shown in Fig. shown), the number of switches between them specific electrical elements.
MCB this genus are from the prior art, for example sufficient according to the publication mentioned at the beginning known, hereby also the subject of this application is made, so at this point regarding the construction and the function of these elements on the corresponding ones Publications can be referenced.
a generic circuit breaker has one stationary, i.e. Contact 5 fixed to the housing (hereinafter referred to as a fixed contact) and a movable, i.e. at the Housing preferably rotatably mounted contact (not closer ) Shown.
a fixed contact fixed to the housing
a movable i.e. at the Housing preferably rotatably mounted contact (not closer ) Shown.
the movable contact becomes pulsed from the fixed contact lifted off and automatically snaps into its release position.
the movable contact via a cable with the Arc running plate 1 electrically connected which consists of a thin sheet metal strip is preferably made of copper.
the arc running plate 1 is as from the state of the Technology well known with regard to an imaginary Connection line between the fixed contact 5 and the movable Contact aligned at an angle. That the arc running plate 1 forms an arc gap S with respect to the fixed contact near a contact surface of the fixed contact 5 its smallest Width and which then moves away from the movable Contact continuous (not necessarily linear) expands.
the laminated core 2 arranged. This consists of a plurality of parallel ones spaced, mutually insulated sheet metal plates 8, which creates gaps between the individual plates.
the exact arrangement of the laminated core 2 is from the beginning described prior art is also well known, so that we won't go into that here got to.
the arc running plate 1 itself extends below of the laminated core 2 with a predetermined parallel distance a bottom sheet of the package 2 further. For this is the arc running plate 1 near an edge of the bottom The plate is roughly blunt at the level of the fixed contact 5 Angle (position 9) bent and under the laminated core 2 guided.
the blow-out duct 3 in the housing educated.
the housing of the electrical Device in the upstream area of the blow-out duct 3 adjacent to the laminated core 2 a number of in Depth direction of the laminated core (i.e. along the gap openings) extending guide walls 10 preferably in one piece with the Housing formed, which are aligned so that a kind of labyrinth 11 is created, which one Represents flow resistance.
This labyrinth 11 leads finally in the downstream area of the blow-out duct 3 an outlet opening 12 which is formed in the housing wall.
the guide walls 10 are on both Housing halves are formed so that when assembled come to lie on top of each other and one wall at a time train together.
the guide walls 10 of the labyrinth 11 are thereby in a section of the exhaust duct 3 along the Arc running plate 1 seen, aligned so that a groove-shaped recess or notch 13 in the depth direction arises as a clamping receptacle for the arc running plate 1 is provided.
the arc running plate 1 is over the downstream edge of the laminated core 2 at least in the upstream area of the labyrinth 11 Blow-out channel 3 extends and forms at its downstream End the end piece 4, which is included in the notch 13 and is fixed by the resulting clamping effect.
This End piece 4 also forms a baffle or Stromleitblech preferably as an integral part of the Labyrinths 11. At this point it should be noted that the end piece 4 also beyond the labyrinth 11 in the Ausblaskanal 3 can be performed.
the end piece 4 is 4th also as a plate (preferably rectangular) formed in the at least one through opening 14 and / or at least one notch 15, preferably on downstream edge of the plate is excluded.
the plate-shaped end piece 4 with one or two Provide notches 15 at the rear (downstream) plate edge, resulting in a two- or three-pronged in plan view Fork shape results. 4 and 5 are against closed through openings 14 in the end piece 4 provided, the openings in Fig. 4 as parallel spaced longitudinal slots and in Fig. 5 as a perforated grid forming holes are provided.
End piece 4 of the arc running plate 1 Due to the widened dimension according to FIGS. 3 to 6 End piece 4 of the arc running plate 1 and by its Geometry can be the end piece 4 in the two at Installation of the housing halves opposite notches 13 pinch and fix. This will fix the surfaces out of the heat range of the arc, so that End piece 4 remains securely fixed. Furthermore, the end piece 4 a kind of heat shield for the housing, which, for example LS switches are made of a thermoplastic.
the fixation of the end piece 4 in the housing (in the housing-side notches 13) also causes forces that Short circuit due to stresses in the material (caused by rapid heat changes) in the arc running plate 1 act, are intercepted by the housing. By this interception the forces remain the parallel distance between the laminated core 2 and largely maintain the arc running plate 1, so that the dielectric strength of the circuit breaker ensures becomes.
the housing is not must necessarily consist of two halves but also can be in one piece, the labyrinth by appropriate Wall inserts can be formed. Nor is it required one of the contacts as a moving contact is trained. Rather, it can also be that between fixed contacts an arc is likely and therefore the arc extinguishing device according to the invention used becomes.
the invention relates to an arc extinguishing device for electrical devices with spaced or spaced contacts, from which is a contact with an electric arc runner that is related to the other contact extends that an in-between Arc gap widens along the arc running plate.
the facility also has a sheet stack, which between the arc running plate and the other contact is arranged and consists of a plurality of sheets between them Form gaps which open into a blow-out duct.
the the arc running plate is above the quenching plate package before to at least in an upstream section of the Exhaust duct to protrude.

Landscapes

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

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
DE10048328A DE10048328C2 (de)	2000-09-28	2000-09-28	Lichtbogen-Löscheinrichtung
DE10048328		2000-09-28

Publications (3)

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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2004040608A1 (fr) *	2002-10-25	2004-05-13	Siemens Aktiengesellschaft	Disjoncteur basse tension
WO2012004651A1 (fr) *	2010-07-08	2012-01-12	1/4Larsen & Toubro Limited	Ensemble tube à arc perfectionné à utiliser dans des disjoncteurs à boîtier moulé
RU179416U1 (ru) *	2017-08-22	2018-05-15	Открытое акционерное общество "ВНИИР-Прогресс"	Искрогасительная пластина автоматического выключателя
US10014668B2 (en)	2016-03-07	2018-07-03	General Electric Company	Switchgear enclosure with interconnected exhaust system
CN115985705A (zh) *	2023-01-18	2023-04-18	厦门宏发开关设备有限公司	灭弧室排气结构和开关电器

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
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
DE102010034264B3 (de) *	2010-08-13	2012-02-23	Abb Ag	Installationsschaltgerät mit einer Lichtbogenlöscheinrichtung

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

2000
- 2000-09-28 DE DE10048328A patent/DE10048328C2/de not_active Expired - Lifetime
2001
- 2001-09-26 AT AT01123056T patent/ATE313148T1/de not_active IP Right Cessation
- 2001-09-26 DE DE50108375T patent/DE50108375D1/de not_active Expired - Lifetime
- 2001-09-26 ES ES01123056T patent/ES2254299T3/es not_active Expired - Lifetime
- 2001-09-26 EP EP01123056A patent/EP1202304B1/fr not_active Expired - Lifetime

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2004040608A1 (fr) *	2002-10-25	2004-05-13	Siemens Aktiengesellschaft	Disjoncteur basse tension
US7064640B2 (en)	2002-10-25	2006-06-20	Siemens Aktiengesellschaft	Low voltage circuit breaker
WO2012004651A1 (fr) *	2010-07-08	2012-01-12	1/4Larsen & Toubro Limited	Ensemble tube à arc perfectionné à utiliser dans des disjoncteurs à boîtier moulé
US10014668B2 (en)	2016-03-07	2018-07-03	General Electric Company	Switchgear enclosure with interconnected exhaust system
RU179416U1 (ru) *	2017-08-22	2018-05-15	Открытое акционерное общество "ВНИИР-Прогресс"	Искрогасительная пластина автоматического выключателя
CN115985705A (zh) *	2023-01-18	2023-04-18	厦门宏发开关设备有限公司	灭弧室排气结构和开关电器

Also Published As

Publication number	Publication date
ES2254299T3 (es)	2006-06-16
EP1202304A3 (fr)	2002-10-02
DE10048328A1 (de)	2002-05-02
EP1202304B1 (fr)	2005-12-14
DE10048328C2 (de)	2003-01-23
ATE313148T1 (de)	2005-12-15
DE50108375D1 (de)	2006-01-19

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