DE102012203568A1 - Switch i.e. load circuit breaker, for low voltage for disrupting multi-polar electric current, has tightening element arranged between outlet ports and resetting elements and enclosed by protecting element that extends into through-opening - Google Patents
Switch i.e. load circuit breaker, for low voltage for disrupting multi-polar electric current, has tightening element arranged between outlet ports and resetting elements and enclosed by protecting element that extends into through-opening Download PDFInfo
- Publication number
- DE102012203568A1 DE102012203568A1 DE201210203568 DE102012203568A DE102012203568A1 DE 102012203568 A1 DE102012203568 A1 DE 102012203568A1 DE 201210203568 DE201210203568 DE 201210203568 DE 102012203568 A DE102012203568 A DE 102012203568A DE 102012203568 A1 DE102012203568 A1 DE 102012203568A1
- Authority
- DE
- Germany
- Prior art keywords
- switch
- elements
- opening
- tightening
- enclosed
- 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.)
- Ceased
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
- H01H1/2041—Rotating bridge
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/08—Terminals; Connections
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- 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
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
Die Erfindung betrifft einen Schalter, insbesondere einen Lasttrennschalter für Niederspannungen, gemäß dem Oberbegriff des Anspruchs 1. The invention relates to a switch, in particular a switch disconnector for low voltages, according to the preamble of claim 1.
Schalter in Form von Lasttrennschaltern für Niederspannungen sind bekannt und dienen zum Unterbrechen eines mehrpoligen elektrischen Stromes. Für jeden Pol ist ein Polgehäuse vorgesehen, dessen Seitenwände aneinander anliegen. Die Polgehäuse haben im Wesentlichen eine Quaderform und bestehen jeweils aus zwei Gehäusehälften. In jedem Polgehäuse befinden sich bewegliche und fest angeordnete Kontaktelemente (Schaltkontakte), wobei sich die beweglichen Kontaktelemente an den freien Enden eines schwenkbaren Hebels befinden, der oft als Doppelhebel ausgebildet ist. Zum Öffnen des Schalters werden die aneinander liegenden Kontaktelemente mittels einer Schaltwelle voneinander getrennt, die bei einem mehrpoligen Schalter aus mehreren Modulen (Wellenabschnitten) zusammengesetzt ist, wobei jedes Polgehäuse ein solches Modul aufweist. Die Module der Schaltwelle sind drehfest miteinander verbunden. Die Schaltwelle verläuft quer zum Hebel und zu den Seitenwänden, die über zwei schmale Stirnwände, eine Vorderwand und eine Rückwand miteinander verbunden sind. Beidseitig der Schaltwelle befinden sich innen an den Stirnwänden Klemmeinheiten, in die über Durchgangsöffnungen an den Stirnwänden von außen Anschlusskabel einsteckbar sind, welche mittels Anzugsschrauben (Anzugselemente) festgeklemmt werden können. Die Anzugsschrauben sind durch je eine Durchgangsöffnung in der Vorderwand von außen zugänglich. Löschelemente (Löschbleche) sorgen dafür, dass ein beim Trennen der Kontaktelemente entstehender Lichtbogen möglichst schnell gelöscht wird. Sie befinden sich jeweils zwischen den Kontaktelementen und der Klemmeinheit. Der mit einem Lichtbogen verbundene Überdruck im Polgehäuse wird mittels an den Stirnseiten angeordneter Austrittsöffnungen entspannt, indem die ionisierten Gase durch die Austrittsöffnungen ausgeleitet werden. Switches in the form of low-voltage switch disconnectors are known and serve to interrupt a multi-pole electric current. For each pole, a pole housing is provided, the side walls abut each other. The pole housings essentially have a cuboid shape and each consist of two housing halves. In each pole housing are movable and fixed contact elements (switching contacts), wherein the movable contact elements are located at the free ends of a pivotable lever, which is often designed as a double lever. To open the switch, the adjacent contact elements are separated from each other by means of a switching shaft, which is composed of a plurality of modules (shaft sections) in a multi-pole switch, each pole housing having such a module. The modules of the switching shaft are rotatably connected. The selector shaft extends transversely to the lever and to the side walls, which are connected to each other via two narrow end walls, a front wall and a rear wall. On both sides of the switching shaft are inside of the end walls clamping units into which through openings on the end walls from the outside connecting cable can be inserted, which can be clamped by tightening screws (tightening elements). The tightening screws are accessible from outside each through a passage opening in the front wall. Extinguishing elements (quenching plates) ensure that an emerging when disconnecting the contact elements arc is extinguished as quickly as possible. They are each between the contact elements and the clamping unit. The overpressure in the pole housing, which is connected to an arc, is released by means of outlet openings arranged at the end faces, by discharging the ionized gases through the outlet openings.
Nachteilig ist dabei, dass die Gase auch durch die Durchgangsöffnung insbesondere des Anzugselements nach außen treten können, das sich zwischen der Austrittsöffnung und den Löschelementen befindet, was zu einem Phasenüberschlag als auch zur Verletzung einer Bedienperson führen kann. Außerdem kann es zu einer Beschädigung des Anzugselements selbst kommen, da es sich in der Strömung der ionisierten heißen Gase befindet. Darüber hinaus kann die Form des Anzugselements, z.B. das Gewinde der Anzugsschrauben, die Ausbildung einer laminaren Strömung stören. A disadvantage is that the gases can also pass through the passage opening in particular of the tightening element to the outside, which is located between the outlet opening and the extinguishing elements, which can lead to a phase overturn and injury to an operator. In addition, damage to the tightening element itself may occur as it is in the flow of ionized hot gases. In addition, the shape of the tightening element, e.g. the thread of the tightening screws, interfere with the formation of a laminar flow.
Die Aufgabe der Erfindung ist es, die oben genannten Nachteile zu vermeiden. The object of the invention is to avoid the above-mentioned disadvantages.
Die Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst; die Unteransprüche stellen vorteilhafte Ausgestaltungen dar. The object is solved by the features of claim 1; the dependent claims represent advantageous embodiments.
Die Lösung sieht vor, dass ein Anzugselement zwischen einer Austrittsöffnung und den Löschelementen angeordnet und von einem Schutzelement umschlossen ist, wobei sich das Schutzelement zumindest bis in die erste Durchgangsöffnung erstreckt. The solution provides that a tightening element is arranged between an outlet opening and the extinguishing elements and is enclosed by a protective element, the protective element extending at least as far as the first through-opening.
Zweckmäßigerweise ist der Hebel als Doppelhebel ausgebildet. Conveniently, the lever is designed as a double lever.
Eine technisch einfache Ausführung sieht vor, dass das Schutzelement als zylindrische Schutzhülse ausgebildet ist. Der Austritt von Gasen durch die erste Durchgangsöffnung lässt sich besser verhindern, wenn die Schutzhülse mit einem Kragen versehen ist. A technically simple embodiment provides that the protective element is designed as a cylindrical protective sleeve. The escape of gases through the first passage opening can be better prevented when the protective sleeve is provided with a collar.
Zweckmäßigerweise erstreckt sich der Kragen dabei bis in die erste Durchgangsöffnung. The collar expediently extends as far as the first passage opening.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels näher beschrieben. Es zeigen: The invention will be described in more detail with reference to an embodiment. Show it:
Im Polgehäuse
Die Schaltwelle in Form eines Moduls (Schaltwellenabschnitts) verläuft quer zum Doppelhebel
Die feststehenden Kontaktelemente
Löschelemente
Hinter den Löschelementen
Die Anzugselemente
In
In
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210203568 DE102012203568A1 (en) | 2012-03-07 | 2012-03-07 | Switch i.e. load circuit breaker, for low voltage for disrupting multi-polar electric current, has tightening element arranged between outlet ports and resetting elements and enclosed by protecting element that extends into through-opening |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210203568 DE102012203568A1 (en) | 2012-03-07 | 2012-03-07 | Switch i.e. load circuit breaker, for low voltage for disrupting multi-polar electric current, has tightening element arranged between outlet ports and resetting elements and enclosed by protecting element that extends into through-opening |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102012203568A1 true DE102012203568A1 (en) | 2013-06-06 |
Family
ID=48431513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201210203568 Ceased DE102012203568A1 (en) | 2012-03-07 | 2012-03-07 | Switch i.e. load circuit breaker, for low voltage for disrupting multi-polar electric current, has tightening element arranged between outlet ports and resetting elements and enclosed by protecting element that extends into through-opening |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102012203568A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3686287T2 (en) * | 1985-05-01 | 1993-03-11 | Westinghouse Electric Corp | CIRCUIT BREAKER WITH EXHAUST ARCH CHAMBER. |
DE9406404U1 (en) * | 1994-04-20 | 1994-06-23 | Moeller GmbH, 53115 Bonn | Electrical switching device with blow-out channels for arc gases |
US6211759B1 (en) * | 2000-01-12 | 2001-04-03 | Eaton Corporation | Ionized gas deflector for a molded case circuit breaker |
US7633365B2 (en) * | 2007-06-28 | 2009-12-15 | General Electric Company | Circuit breaker apparatus |
-
2012
- 2012-03-07 DE DE201210203568 patent/DE102012203568A1/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3686287T2 (en) * | 1985-05-01 | 1993-03-11 | Westinghouse Electric Corp | CIRCUIT BREAKER WITH EXHAUST ARCH CHAMBER. |
DE9406404U1 (en) * | 1994-04-20 | 1994-06-23 | Moeller GmbH, 53115 Bonn | Electrical switching device with blow-out channels for arc gases |
US6211759B1 (en) * | 2000-01-12 | 2001-04-03 | Eaton Corporation | Ionized gas deflector for a molded case circuit breaker |
US7633365B2 (en) * | 2007-06-28 | 2009-12-15 | General Electric Company | Circuit breaker apparatus |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed | ||
R230 | Request for early publication | ||
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |
Effective date: 20130718 |