EP1103996B2 - Abschaltvorrichtung für ein Schaltgerät - Google Patents
Abschaltvorrichtung für ein Schaltgerät Download PDFInfo
- Publication number
- EP1103996B2 EP1103996B2 EP00403260.3A EP00403260A EP1103996B2 EP 1103996 B2 EP1103996 B2 EP 1103996B2 EP 00403260 A EP00403260 A EP 00403260A EP 1103996 B2 EP1103996 B2 EP 1103996B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- switching
- side walls
- arc extinguishing
- casing
- splitters
- 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
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
- H01H9/36—Metal parts
- H01H9/362—Mounting of plates in arc chamber
Definitions
- the present invention relates to a cut-off device comprising an arc-breaking chamber housing provided with arcing extinguishing blades, this device being intended to be used in each pole of switchgear, in particular circuit-breakers or circuit breakers. multi-pole low-voltage switch-breaker.
- the patent DE19757332 describes for example a device in which the cage of the movable contact bridge, located inside the casing of the interrupting chamber, has a comb shape whose grooves are able to accommodate the ends of the arc extinguishing vanes , thus ensuring their maintenance.
- the arc extinguishing vanes are isolated from the movable contacts also through side walls located on each side of the mobile contact bridge cage.
- the object of the invention is therefore to propose a single device that makes it possible both to guide the arc extinguishing fins in the casing of the interrupting chamber, to isolate them from the moving contacts and to stiffen the side walls at the same time. of the casing of the interrupting chamber.
- the multipolar switch device breaking device is as defined in claim 1.
- the body of the guide means also contributes to reinforcing the mechanical rigidity of the side walls of the breaking box.
- the cut-off device described in the invention is located in a breaking chamber 19 formed by an insulating breaking box 20 for each pole of a switch device, for example of the contactor-breaker type.
- This cutoff box 20 has a substantially parallelepipedal shape and has two side walls 24 and a bottom wall 25.
- the cutoff boxes 20 of the different poles are adjacent to each other and the adjacent sidewalls 24 are common, as shown on the figure 1 .
- the figure 2 shows a breaking chamber in which there is a movable contact bridge 11, mounted inside a cage 10 and provided with an insulating pusher 14 and two movable contacts 12. Each movable contact 12 of this bridge 11 cooperates with a fixed contact not shown in the accompanying figures.
- the pusher 14 and the contact bridge 11 are guided in translation in the cage 10 along an axis marked X.
- the triggering mechanism acts on the pusher 14 to separate the movable contacts 12 from the fixed contacts.
- a compression spring 18 bearing on the one hand on the bottom 25 of the breaking box thanks to a suitable shape 13 of the cage 10 and on the other hand under the bridge of contacts 11, tends to press the movable contacts 12 against the fixed contacts.
- each set of vanes 17 is formed of a plurality of U-shaped mutually parallel metal arc extender fins 16 each having a base 16b. and two ends 16a directed towards the cage 10; each set of fins 17 also comprises an insulating assembly piece 15, perpendicular to the fins 16, surrounding the base 16b of the fins 16 and intended to fix and hold them together at a fixed distance.
- the ends 16a of the fins are disposed near each movable contact 12, in a direction parallel to the axis X corresponding to the movement made by the movable contact bridge 11 during a trip, so as to act as effectively as possible against an electric arc occurring between a fixed contact and a movable contact.
- the ends 16a of the fins 16 must be protected by an insulating wall of the movable contact 12, the fixed contact and the bridge 11.
- the breaking housing 20 can be subjected to significant pressures. and it may be necessary to stiffen the sidewalls 24 of the cutoff housing 20 near the moving contact bridge 11.
- the invention provides a device in which the side walls 24 of the breaking box 20 comprise guiding means for the ends 16a of the arc extinguishing vanes 16.
- these guide means comprise a body 21, molded with each side wall 24 towards the inside of the cut-off housing 20 and extended by a lateral rib 22 substantially parallel to the side wall 24, forming with this wall a housing 23 adapted to receive the ends 16a of the arc extinguishing vanes 16.
- the body 21 may, for example, have a substantially rectangular section over the entire height of the wall 24.
- the length of the lateral rib 22 can sufficiently cover the ends 16a to electrically isolate them from the movable contacts 12, fixed contacts and the movable contact bridge 11, during the occurrence of an electric arc.
- Pins 26, molded with each side wall 24 towards the inside of the cut-off box 20, are intended to guide and hold each set of fins laterally 17 while bearing on the rear face 15a of the connecting piece 15 of the fins 16.
- each set of vanes can be inserted quickly and held in a housing 20, thus facilitating the manufacture of the breaking chambers 19.
- the body 21 also makes it possible to significantly reinforce, without adding any additional element, the rigidity of the side walls 24 close to the zone where an electric arc can be triggered between mobile contacts and fixed contacts, that is to say there where the pressure exerted on these side walls is the strongest. It is thus possible to reduce the overall thickness of the side walls 24, knowing that they are reinforced in their most critical zones; it follows a general optimization of dimensions for a multipolar switch device.
- body 21 of the guide means in fact comprises a face 21a in a plane perpendicular to the side wall 24, opposite the rib 22.
- the faces 21a of two bodies 21 located along the same side wall 24 of a breaking box 20 form with this side wall 24 a housing 27 in which the cage 10 can slide along the X axis at the time of its insertion and which then ensures the lateral maintenance of the cage 10 and thus the bridge of movable contacts 11 .
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
- Circuit Breakers (AREA)
- Keying Circuit Devices (AREA)
- Electronic Switches (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Push-Button Switches (AREA)
- Slide Switches (AREA)
Claims (2)
- Trennvorrichtung eines mehrpoligen Schaltgeräts, die für jeden Pol aus einem Gehäuse (20) einer Lichtbogenlöschkammer (19) besteht, und die aufweist:- zwei Seitenwände (24), zwischen denen ein Käfig (10) angeordnet ist, der eine Brücke (11) von zwei beweglichen Kontakten (12) trägt, die ortsfesten Kontakten zugeordnet sind,- zwei Einheiten (17) von mehreren U-förmigen Lichtbogenlöschrippen (16) die jeweils zwei Enden aufweisen, die sich in der Nähe jedes beweglichen Kontakts befinden,
dadurch gekennzeichnet dass:- die Seitenwände (24) des Lichtbogenlöschkammer-Gehäuses (20) Führungsmittel für die Enden (16a) der Lichtbogenlöschrippen (16) aufweisen, wobei diese Führungsmittel außerdem in der Lage sind, eine elektrische Isolierung zwischen den beweglichen Kontakten (12) und den Enden (16a) der Lichtbogenlöschrippen zu gewährleisten,- die Führungsmittel einen Körper (21) aufweisen, der an jede Seitenwand (24) zur Innenseite des Lichtbogenlöschkammer-Gehäuses (20) hin angeformt und durch eine Seitenrippe (22) verlängert ist, die mit der Seitenwand (24) einen Sitz (23) zur Aufnahme der Enden (16a) der Lichtbogenlöschrippen bildet,- der Körper (21) der Führungsmittel eine Seite (21a) senkrecht zur Seitenwand (24) gegenüber der Rippe (22) aufweist, die die Führung und den seitlichen Halt des Käfigs (10) der Brücke von beweglichen Kontakten im Lichtbogenlöschkammer-Gehäuse (20) gewährleistet. - Trennvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Körper (21) der Führungsmittel ebenfalls zur Verstärkung der mechanischen Steifheit der Seitenwände (24) des Lichtbogenlöschkammer-Gehäuses in der Zone beiträgt, in der ein Lichtbogen zwischen ortsfesten und beweglichen Kontakten ausgelöst werden kann.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60027842T DE60027842T3 (de) | 1999-11-25 | 2000-11-22 | Abschaltvorrichtung für ein Schaltgerät |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9914960 | 1999-11-25 | ||
FR9914960A FR2801722B1 (fr) | 1999-11-25 | 1999-11-25 | Dispositif de coupure pour appareil interrupteur |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1103996A1 EP1103996A1 (de) | 2001-05-30 |
EP1103996B1 EP1103996B1 (de) | 2006-05-10 |
EP1103996B2 true EP1103996B2 (de) | 2013-08-14 |
Family
ID=9552622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00403260.3A Expired - Lifetime EP1103996B2 (de) | 1999-11-25 | 2000-11-22 | Abschaltvorrichtung für ein Schaltgerät |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1103996B2 (de) |
AT (1) | ATE326060T1 (de) |
DE (1) | DE60027842T3 (de) |
FR (1) | FR2801722B1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10356271B4 (de) | 2003-11-28 | 2008-02-14 | Siemens Ag | Schaltgerät |
JP2012199000A (ja) * | 2011-03-18 | 2012-10-18 | Fuji Electric Fa Components & Systems Co Ltd | 多極回路遮断器 |
RU2599384C2 (ru) | 2012-05-30 | 2016-10-10 | Абб Текнолоджи Лтд. | Коммутационное устройство |
WO2016045718A1 (de) | 2014-09-24 | 2016-03-31 | Siemens Aktiengesellschaft | Schaltgerät mit lichtbogenlöschvorrichtung |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2029252A1 (de) † | 1970-06-13 | 1971-12-23 | Siemens Ag | Elektrischer Schalter |
DE69302599T2 (de) † | 1992-02-11 | 1996-09-26 | Schneider Electric Sa | Schaltstruktur für Lastschalter |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1415944A1 (de) * | 1961-03-24 | 1969-02-06 | Licentia Gmbh | Schaltgeraet mit einer ungleich breit ausgebildeten Lichtbogenkammer |
DE1911660A1 (de) * | 1969-03-07 | 1970-10-01 | Bbc Brown Boveri & Cie | Lichtbogenloeschvorrichtung |
US4247746A (en) * | 1977-10-04 | 1981-01-27 | Dorman Smith Switchgear Limited | Electric circuit breaker |
US4405847A (en) * | 1980-12-23 | 1983-09-20 | Whipp & Bourme (1975) Limited | Arc chutes |
EP0138174B1 (de) * | 1983-10-15 | 1987-09-16 | Licentia Patent-Verwaltungs-GmbH | Löscheinrichtung für einen Leitungsschutzschalter |
US4866226A (en) * | 1987-07-13 | 1989-09-12 | Mitsubishi Denki Kabushiki Kaisha | Multi-phase circuit breaker employing arc extinguishing apparatus |
DE8903583U1 (de) * | 1989-03-22 | 1989-05-11 | AEG Niederspannungstechnik GmbH, 24534 Neumünster | Lichtbogenlöscheinrichtung |
DE19757332C1 (de) * | 1997-12-22 | 1999-07-22 | Siemens Ag | Lichtbogenlöscheinrichtung für ein Schaltgerät |
-
1999
- 1999-11-25 FR FR9914960A patent/FR2801722B1/fr not_active Expired - Lifetime
-
2000
- 2000-11-22 EP EP00403260.3A patent/EP1103996B2/de not_active Expired - Lifetime
- 2000-11-22 AT AT00403260T patent/ATE326060T1/de not_active IP Right Cessation
- 2000-11-22 DE DE60027842T patent/DE60027842T3/de not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2029252A1 (de) † | 1970-06-13 | 1971-12-23 | Siemens Ag | Elektrischer Schalter |
DE69302599T2 (de) † | 1992-02-11 | 1996-09-26 | Schneider Electric Sa | Schaltstruktur für Lastschalter |
Also Published As
Publication number | Publication date |
---|---|
FR2801722B1 (fr) | 2001-12-28 |
DE60027842T3 (de) | 2013-12-12 |
EP1103996A1 (de) | 2001-05-30 |
DE60027842D1 (de) | 2006-06-14 |
FR2801722A1 (fr) | 2001-06-01 |
ATE326060T1 (de) | 2006-06-15 |
DE60027842T2 (de) | 2006-10-05 |
EP1103996B1 (de) | 2006-05-10 |
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