WO1998038712A2 - Kammerdeckelbefestigung für lichtbogenlöschkammern für niederspannungs-leistungsschalter - Google Patents
Kammerdeckelbefestigung für lichtbogenlöschkammern für niederspannungs-leistungsschalter Download PDFInfo
- Publication number
- WO1998038712A2 WO1998038712A2 PCT/DE1998/000664 DE9800664W WO9838712A2 WO 1998038712 A2 WO1998038712 A2 WO 1998038712A2 DE 9800664 W DE9800664 W DE 9800664W WO 9838712 A2 WO9838712 A2 WO 9838712A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chamber
- recesses
- quenching
- housing
- elements
- Prior art date
Links
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
-
- 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
- H01H2009/347—Stationary parts for restricting or subdividing the arc, e.g. barrier plate using lids for closing the arc chamber after assembly
Definitions
- the invention relates to chamber covers for arc quenching chambers for low-voltage circuit breakers that switch in air, in particular the reduction in the connecting elements required for their attachment to the arc quenching chambers.
- Low-voltage circuit breakers that switch in air require an arc quenching chamber to operate, in order to extinguish occurring arcs without impairing the circuit breaker itself and adjacent system components or other assemblies, because otherwise there is a risk that the hot and thus ionized arc gases will cause electric shock or cause other damage.
- Arc quenching chambers are especially large
- Circuit breakers can only be manufactured as separate units. When they are connected to the main body of the circuit breaker and the connection of their individual parts to one another, the task is to seal the technically required gaps and joints against the passage of ionized arc gases and to prevent electrical flashovers caused by gases that may still escape. In this respect, special attention must also be paid to the connection of the extinguishing chamber cover to the extinguishing chamber housing.
- an arc quenching chamber is shown which is removably arranged on an air circuit breaker. For this purpose, the arcing chamber is inserted into a groove on the side of the fixed contact by means of a hook-like extension and on the
- the fire chamber cover is attached to the fire chamber housing with four screws.
- the hook-like extension serves to fasten the entire quenching chamber and, above all, to seal it against escaping ionized arc gases.
- EP patent application 0 225 207 describes an arc quenching chamber in which the arc quenching plates are held between two side walls provided with ribs and grooves, which have molded-on half covers of the quenching chamber with an insulating holder.
- the Cover halves fastened with the help of screws to a bracket, which in turn serves for fastening to the switch housing, which is done with the aid of fastening screws.
- a large number of fastening elements are required to fasten the quenching chamber to the switch, namely four screws per switch pole including washers for fastening the cover halves to the two fastening brackets, these two fastening brackets themselves and two screws with nuts for fixing the mounting bracket to the switch housing.
- the arcing chamber covers are attached to the arcing chamber housing with four screws.
- the quenching chamber cover covers a hollow extension of the quenching chamber housing, in which a single fastening screw is captively accommodated, with which the complete arc quenching chamber is fastened to the circuit breaker. There is an insertion opening for one in the fire chamber cover
- Screwdriver arranged.
- the number of fastening elements required for fastening the arcing chamber cover to the arcing chamber and for fastening the arcing chamber to the housing of the switch is relatively large.
- the arcing chamber housing has a hollow extension on the side on which it can be fastened to the circuit breaker, in which there is a bore for receiving a fastening screw, and on which across from- lying, front side of the arcing chamber, at the top of the
- Quenching chamber housing is arranged a horizontal nose-like projection, and the quenching chamber cover is provided with a claw-like extension for embracing the nose-like projection on the quenching chamber housing when the quenching chamber cover is placed on the quenching chamber housing.
- Extinguishing chamber cover a stop hole is arranged such that the head of the fastening screw for horizontal locking of the extinguishing chamber cover forms a stop for the wall of this stop hole.
- the object of the invention is to design the fastening of the cover of the arc quenching chamber in such a way that it can be assembled with simple means and a small number of connecting elements in such a way that the demands on the connection, in particular especially the seal against the passage of ionized
- the quenching chamber according to the invention has end plates with upper resilient latching elements and lower resilient latching elements which are advantageously produced by punching the plate and are made in one piece from the material of the plate. These locking elements are arranged so that they are directed towards each other, that is, the upper locking elements point downwards and the lower locking elements point upwards. The upper locking elements are spread inwards, in the direction of the quenching plates and the bottom locking elements outwards, in the direction of the housing of the quenching chamber. Recesses are provided in the housing of the quenching chamber in such a position that the lower locking elements of the end plate, when fully inserted into the quenching chamber, snap into these recesses and are supported on the upper sides of the recesses.
- Recesses are also provided in the quenching chamber cover in such a position that the upper latching elements of the end plate snap into these recesses when the quench chamber cover is fully inserted into the quenching chamber and are supported on the lower sides of the recesses.
- End plates are taken up by grooves in the housing of the quenching chamber.
- the quenching plates are inserted into the quenching chamber so far that the lower locking elements in the
- suitable projections can also be provided at the same place, on which the lower latching elements are supported.
- bores can expediently be provided in the quenching chamber cover, which extend from its top to the recesses, such that the upper latching elements are pressed back into the plane of the end plate by means of a suitable tool and are thus brought out of engagement with the recess in the quenching chamber cover if the extinguishing chamber cover is to be removed.
- Fig.l shows schematically an end plate according to the invention in a perspective view.
- FIG. 2 shows schematically the arrangement of the quenching plate according to the invention in the quenching chamber in a sectional view of part of the quenching chamber.
- FIG 3 shows a possible variant of the support of the quenching plate according to the invention in the quenching chamber.
- the end plate 1 shown in FIG. 1 has upper resilient latching elements 2 and lower resilient latching elements 3 which are produced by stamping the plate and are made in one piece from the material of the plate. These locking elements 2 and 3 are arranged so that they are directed towards each other, that is, the upper locking elements 2 point downwards and the lower locking elements 3 point upwards. The upper locking elements 2 are spread inwards, in the direction of the quenching plates and the bottom locking elements 3 outwards, in the direction of the housing 4 of the quenching chamber.
- Recesses 5 are provided in the housing 4 of the extinguishing chamber in such a position that the lower latching elements 3 of the end plate 1 snap into these recesses 5 when fully inserted into the extinguishing chamber and are supported on the upper sides 6 of the recesses 5.
- Recesses 8 are also provided in the quench chamber cover 7 in a position such that the upper locking elements 2 of the end plate 1 in the When the extinguishing chamber cover 7 is fully inserted into the extinguishing chamber, snap it into these recesses 8 and support it on the lower sides 9 of the recesses 8.
- the end plates 1 When assembling the quenching chamber, the end plates 1 are inserted into the quenching chamber, the angled edges 10 of the end plates 1 being received by grooves 11 in the housing 4 of the quenching chamber.
- the quenching plates 1 are inserted so far into the quenching chamber that the lower locking elements 3 snap into the recess 5 in the housing 4 of the quenching chamber.
- the extinguishing chamber cover 7 is pressed from above into the housing 4 of the extinguishing chamber provided with the end plates 1 until the upper latching elements 2 of the end plates 1 snap into the recesses 8 of the extinguishing chamber cover 7.
- 7 holes 14 can be provided in the extinguishing chamber cover expediently, which extend from its top 15 into the recesses 8, such that through this
- Latching elements 2 can be pushed back into the plane of the end plate 1 and can thus be brought out of engagement with the recess 8 in the quenching chamber cover 7 if the quenching chamber cover 7 is to be removed.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98919042A EP0963622A2 (de) | 1997-02-28 | 1998-02-27 | Kammerdeckelbefestigung für lichtbogenlöschkammern für niederspannungs-leistungsschalter |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997109843 DE19709843A1 (de) | 1997-02-28 | 1997-02-28 | Kammerdeckelbefestigung für Lichtbogenlöschkammern für Niederspannungs-Leistungsschalter |
DE19709843.6 | 1997-02-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1998038712A2 true WO1998038712A2 (de) | 1998-09-03 |
WO1998038712A3 WO1998038712A3 (de) | 1998-12-10 |
Family
ID=7822879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1998/000664 WO1998038712A2 (de) | 1997-02-28 | 1998-02-27 | Kammerdeckelbefestigung für lichtbogenlöschkammern für niederspannungs-leistungsschalter |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0963622A2 (de) |
DE (1) | DE19709843A1 (de) |
WO (1) | WO1998038712A2 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10049726A1 (de) * | 2000-09-29 | 2002-04-11 | Siemens Ag | Kammerdeckelbefestigung für Lichtbogenlöschkammern für Niederspannungsschaltgeräte |
CN107919620B (zh) * | 2017-12-04 | 2019-05-03 | 江苏海事职业技术学院 | 一种防飞弧配电箱 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3706868A (en) * | 1971-10-18 | 1972-12-19 | Square D Co | Arc chute |
US4684772A (en) * | 1985-04-09 | 1987-08-04 | Square D Company | Mounting apparatus for arc quenching plates for electric contacts |
EP0505794A1 (de) * | 1991-03-25 | 1992-09-30 | Moeller GmbH | Elekromagnetisches Schaltgerät mit Deionisierungseinrichtungen |
-
1997
- 1997-02-28 DE DE1997109843 patent/DE19709843A1/de not_active Withdrawn
-
1998
- 1998-02-27 EP EP98919042A patent/EP0963622A2/de not_active Withdrawn
- 1998-02-27 WO PCT/DE1998/000664 patent/WO1998038712A2/de not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3706868A (en) * | 1971-10-18 | 1972-12-19 | Square D Co | Arc chute |
US4684772A (en) * | 1985-04-09 | 1987-08-04 | Square D Company | Mounting apparatus for arc quenching plates for electric contacts |
EP0505794A1 (de) * | 1991-03-25 | 1992-09-30 | Moeller GmbH | Elekromagnetisches Schaltgerät mit Deionisierungseinrichtungen |
Also Published As
Publication number | Publication date |
---|---|
WO1998038712A3 (de) | 1998-12-10 |
EP0963622A2 (de) | 1999-12-15 |
DE19709843A1 (de) | 1998-09-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102005043396A1 (de) | Auswechselbare Löschblechkassette für einen Leistungsschalter sowie Leistungsschalter mit auswechselbarer Löschblechkassette | |
EP1298687B1 (de) | Lichtbogenlöscheinrichtung für Niederspannungs-Schaltgeräte | |
EP0360367A2 (de) | Niederspannungs-Leistungsschalter mit einem Wandteil zur Ableitung von Schaltgasen | |
EP0912984B1 (de) | Lichtbogenlöschkammer für niederspannungs-leistungsschalter | |
DE10036370B4 (de) | Lichtbogenlöscheinrichtung mit einem Aufsatz für Niederspannungs-Schaltgeräte | |
EP0992049A1 (de) | Elektromagnetisches schaltgerät mit löschkammern | |
EP1323176B1 (de) | Lichtbogenlöschkammer in luft schaltender niederspannungsschaltgeräte | |
EP0963622A2 (de) | Kammerdeckelbefestigung für lichtbogenlöschkammern für niederspannungs-leistungsschalter | |
DE10129505C1 (de) | Mehrpoliges Schaltgerät mit Zweifachgehäuse | |
DE9403259U1 (de) | Gehäuseaufbau für einen Niederspannungs-Schutzschalter mit Hilfsschalterblock | |
DE29505046U1 (de) | Niederspannungs-Schaltgerät mit Berührungsschutz | |
DE19630471A1 (de) | Schaltkammergehäuse für einen Leistungsschalter und Gehäusemodule zur Herstellung eines derartigen Schaltkammergehäuses | |
DE2907559C2 (de) | Dreipoliger Hochspannungsschalter insbesondere Lasttrenner | |
DE10038642A1 (de) | Kammerdeckelbefestigung für Lichtbogenlöschkammern für Niederspannungs-Schaltgeräte | |
DE3019925C2 (de) | NH- Sicherungstrenner und -Lastschalter | |
WO2002071428A1 (de) | Niederspannungs-leistungsschalter mit einem lichtbogen-löschsystem | |
DE29905214U1 (de) | Lichtbogen-Löscheinrichtung | |
WO1994024749A1 (de) | Abgangs- oder anschlusskasten für stromschienen in niederspannungs-schienenverteilern | |
DE29807119U1 (de) | Niederspannungs-Leistungsschalter mit einer Lichtbogenlöscheinrichtung | |
DE10007400A1 (de) | Elektrische Gleitkontaktanordnung | |
EP1232509A1 (de) | Niederspannungs-leistungsschalter mit einem eine vorderwand und eine rückwand aufweisenden gehäuse | |
DE2525810A1 (de) | Luftschuetz fuer gleich- und wechselstromsysteme hoeherer spannung | |
EP0681737B1 (de) | Löschblechpaket für eine lichtbogenlöschkammer | |
DE724112C (de) | Mehrpoliger Selbstschalter mit einem auf der Grundplatte befestigten Lagerbock | |
DE19943966A1 (de) | Schaltgerät |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): JP US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
AK | Designated states |
Kind code of ref document: A3 Designated state(s): JP US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A3 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1998919042 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1998919042 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: JP Ref document number: 1998537190 Format of ref document f/p: F |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1998919042 Country of ref document: EP |