DE102010014428A1 - Multipole electrical switching device comprises two switching poles, a drive mechanism and a switching shaft, which is capable of rotating under the effect of the drive mechanism about an axis of rotation formed by pivot bearings - Google Patents
Multipole electrical switching device comprises two switching poles, a drive mechanism and a switching shaft, which is capable of rotating under the effect of the drive mechanism about an axis of rotation formed by pivot bearings Download PDFInfo
- Publication number
- DE102010014428A1 DE102010014428A1 DE201010014428 DE102010014428A DE102010014428A1 DE 102010014428 A1 DE102010014428 A1 DE 102010014428A1 DE 201010014428 DE201010014428 DE 201010014428 DE 102010014428 A DE102010014428 A DE 102010014428A DE 102010014428 A1 DE102010014428 A1 DE 102010014428A1
- Authority
- DE
- Germany
- Prior art keywords
- switching
- drive mechanism
- poles
- switching shaft
- contact arm
- 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.)
- Withdrawn
Links
Images
Classifications
-
- 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
- H01H1/2058—Rotating bridge being assembled in a cassette, which can be placed as a complete unit into a circuit breaker
-
- 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
- H01H71/10—Operating or release mechanisms
- H01H71/1009—Interconnected mechanisms
Abstract
Description
Die Erfindung betrifft einen Schalter, insbesondere einen Leistungsschalter, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a switch, in particular a circuit breaker, according to the preamble of
Leistungsschalter sind allgemein bekannt und dienen zur Unterbrechung eines elektrischen Stroms im Falle eines Kurzschlusses. Dazu weisen sie einen Kontaktarm auf, der zwischen einer EIN- und einer AUS-Stellung verschwenkbar ist. Der Kontaktarm trägt an seinem Ende ein Kontaktstück, das bei geschlossenem Schalter an einem gegenüberliegenden Kontaktstück anliegt. Der zu unterbrechende Strom fließt durch den Schalter jeweils von der netzseitigen Anschlussklemme über die beiden Kontaktstücke und den Kontaktarm zu der lastseitigen Anschlussklemme. Im Falle eines Kurzschlusses wird der Kontaktarm durch die auftretenden magnetischen Kräfte, die der Kurzschlussstrom erzeugt, verschwenkt, wobei die beiden Kontaktstücke voneinander getrennt werden. Der Kontaktarm ist in einem Rotor drehbar gelagert; eine Drehung des Rotors führt ebenfalls zum Verschwenken des Kontaktarms und zum Trennen der Kontaktstücke.Circuit breakers are well known and are used to interrupt an electrical current in the event of a short circuit. For this purpose, they have a contact arm, which is pivotable between an ON and an OFF position. The contact arm carries at its end a contact piece, which rests when the switch is closed at an opposite contact piece. The current to be interrupted flows through the switch in each case from the line-side connection terminal via the two contact pieces and the contact arm to the load-side connection terminal. In the case of a short circuit, the contact arm is pivoted by the occurring magnetic forces generated by the short-circuit current, wherein the two contact pieces are separated from each other. The contact arm is rotatably mounted in a rotor; a rotation of the rotor also leads to pivoting of the contact arm and for separating the contact pieces.
Bei einem mehrpoligen Schalter befinden sich die Kontaktarme der einzelnen Phasen in jeweils einer Polkassette und die Rotoren der nebeneinander angeordneten Polkassetten sind zu einer Schaltwelle drehfest zusammengefügt, wobei die Schaltwelle quer zu den Polkassetten verläuft. Eine Drehung der Schaltwelle verschwenkt alle Kontaktarme je nach Drehrichtung gleichzeitig in ihre AUS-Stellung bzw. in ihre EIN-Stellung. Die Schaltwelle ist in der Ein-Stellung durch eine Feder vorgespannt und verklinkt. Bei Auftreten eines Kurzschlusses wird der zugehörige Kontaktarm durch die magnetischen Kräfte in seine AUS-Stellung verschwenkt und zunächst der Stromfluss dieser Phase unterbrochen. Anschließend wird die Verklinkung gelöst und die Schaltwelle unterbricht den Stromfluss der übrigen Phasen.In a multi-pole switch, the contact arms of the individual phases are each in a Polkassette and the rotors of juxtaposed Polkassetten are rotatably joined together to form a switching shaft, wherein the switching shaft extends transversely to the Polkassetten. A rotation of the switching shaft pivots all contact arms simultaneously depending on the direction of rotation in its OFF position or in its ON position. The switching shaft is biased in the on position by a spring and latched. When a short circuit occurs, the associated contact arm is pivoted by the magnetic forces in its OFF position and initially interrupted the current flow of this phase. Subsequently, the latch is released and the switching shaft interrupts the current flow of the remaining phases.
Nachteilig ist dabei, dass der Kontaktarm der Phase, in welcher der Kurzschlussstrom auftritt, nach dem Aufschwenken in die AUS-Stellung manchmal wieder in seine EIN-Stellung zurückfällt, was zur Zerstörung des Schalters selbst als auch der nachfolgenden Verbraucher führen kann.The disadvantage here is that the contact arm of the phase in which the short circuit current sometimes falls back into its ON position after swinging into the OFF position, which can lead to the destruction of the switch itself and the subsequent consumer.
Die Aufgabe der Erfindung ist es, die Schutzfunktion des Schalters sicherzustellen.The object of the invention is to ensure the protective function of the switch.
Die Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst; die Unteransprüche stellen vorteilhafte Ausgestaltungen dar.The object is solved by the features of
Die Lösung sieht vor, dass zumindest auf einer Seite am Kontaktarm ein Sperrelement angeordnet ist, das spätestens bei Erreichen der Aus-Stellung in eine Vertiefung des Gehäuses eingreift, so dass ein Zurückschwenken des Kontaktarms in die Ein-Stellung blockiert ist. Das Sperrelement verrastet also quasi im Gehäuse und verhindert auf diese Weise ein Zurückfallen des Kontaktarms in die EIN-Stellung.The solution provides that at least on one side of the contact arm, a blocking element is arranged, which engages in a recess of the housing at the latest when reaching the off position, so that a pivoting back of the contact arm is blocked in the on position. The locking element thus locked so to speak in the housing and prevents in this way a falling back of the contact arm in the ON position.
Wirksamer ist es, wenn auf beiden Seiten des Kontaktarms je ein Sperrelement angeordnet ist.It is more effective if a blocking element is arranged on each side of the contact arm.
Eine technisch einfache Ausführung sieht vor, dass das Sperrelement als Federelement, insbesondere als Blattfeder, ausgebildet ist.A technically simple embodiment provides that the blocking element is designed as a spring element, in particular as a leaf spring.
Eine verschleißarme Ausführung sieht vor, dass das Federelement im Rotor gespannt gehalten ist, beim Verschwenken des Kontaktarms den Rotor verlässt und vor Erreichen der Aus-Stellung an einem Gehäusevorsprung, insbesondere in Form eines Stegs, entlang gleitet, bevor es sich in die Gehäusevertiefung bewegt.A low-wear design provides that the spring element is held taut in the rotor, leaves the rotor during pivoting of the contact and before reaching the off position on a housing projection, in particular in the form of a web, along slides, before moving into the housing recess.
Vorteilhaft ist es, wenn das Federelement beim Einschalten des Schalters im Zusammenwirken mit dem Rotor gespannt und im gespannten Zustand zusammen mit dem Rotor zurückbewegt wird.It is advantageous if the spring element is tensioned when switching on the switch in cooperation with the rotor and moved back together with the rotor in the tensioned state.
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:
In
Im Kurzschlussfall überschreitet der fließende Strom über die Kontaktstücke
In
Wird der Rotor
Umgekehrt wird der Kontaktarm
Bei einem mehrpoligen Schalter sind die Rotoren
Zum Einschalten des Schalters wird die Schaltwelle entgegen der Uhrzeigerrichtung zurückgedreht, wobei jeder Rotor
Claims (5)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010014428 DE102010014428A1 (en) | 2010-04-01 | 2010-04-01 | Multipole electrical switching device comprises two switching poles, a drive mechanism and a switching shaft, which is capable of rotating under the effect of the drive mechanism about an axis of rotation formed by pivot bearings |
EP10765798.3A EP2489056B1 (en) | 2009-10-15 | 2010-10-15 | Multipole electrical switching device |
CN201080046387.4A CN102549701B (en) | 2009-10-15 | 2010-10-15 | The electric switch equipment of multipole |
US13/500,977 US9129768B2 (en) | 2009-10-15 | 2010-10-15 | Multipole electrical switching device |
PCT/EP2010/065568 WO2011045428A1 (en) | 2009-10-15 | 2010-10-15 | Multipole electrical switching device |
CN201110081929.8A CN102214530B (en) | 2010-04-01 | 2011-04-01 | Switch, especially power switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010014428 DE102010014428A1 (en) | 2010-04-01 | 2010-04-01 | Multipole electrical switching device comprises two switching poles, a drive mechanism and a switching shaft, which is capable of rotating under the effect of the drive mechanism about an axis of rotation formed by pivot bearings |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102010014428A1 true DE102010014428A1 (en) | 2011-10-06 |
Family
ID=44650148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201010014428 Withdrawn DE102010014428A1 (en) | 2009-10-15 | 2010-04-01 | Multipole electrical switching device comprises two switching poles, a drive mechanism and a switching shaft, which is capable of rotating under the effect of the drive mechanism about an axis of rotation formed by pivot bearings |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN102214530B (en) |
DE (1) | DE102010014428A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011077883A1 (en) * | 2011-06-21 | 2012-12-27 | Siemens Aktiengesellschaft | Electric power switch has electrical contact bridge that is permanently held in OFF position for short periods after pivoting contact bridge from ON position to OFF position |
DE102014224798A1 (en) | 2014-12-03 | 2016-06-09 | Siemens Aktiengesellschaft | Contact unit and electromechanical switching device |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103594258B (en) * | 2012-08-15 | 2016-03-09 | 西门子公司 | A kind of switching device |
BR112016002051B1 (en) * | 2013-09-25 | 2021-08-17 | Siemens Aktiengesellschaft | SWITCHING DEVICE |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19630470C1 (en) * | 1996-07-27 | 1997-08-28 | Kloeckner Moeller Gmbh | Current-limiting circuit-breaker switch with two lugs on centrally pivoted lever |
US6084489A (en) * | 1998-09-08 | 2000-07-04 | General Electric Company | Circuit breaker rotary contact assembly locking system |
DE20313872U1 (en) * | 2003-09-06 | 2005-01-05 | Moeller Gmbh | Contact arrangement for current-limiting circuit breakers |
DE102008039066A1 (en) * | 2008-08-21 | 2010-02-25 | Siemens Aktiengesellschaft | Circuit-breaker for interrupting current flow, has press element arranged at bridging element for pressing surface of bridging element against component or housing in deflecting position, where housing comprises two contacts |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7221246B2 (en) * | 2005-01-07 | 2007-05-22 | General Electric Company | Split rotor system and method with springs |
DE102006009645A1 (en) * | 2006-03-02 | 2007-09-06 | Moeller Gmbh | Switch shaft unit for an electrical contact system |
EP2099044B1 (en) * | 2008-03-06 | 2014-09-17 | K & N Schalterentwicklungsgesellschaft m.b.H. | Switching mechanism |
CN101339868B (en) * | 2008-08-11 | 2010-08-18 | 上海永继电气有限公司 | Contact system of circuit breaker |
-
2010
- 2010-04-01 DE DE201010014428 patent/DE102010014428A1/en not_active Withdrawn
-
2011
- 2011-04-01 CN CN201110081929.8A patent/CN102214530B/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19630470C1 (en) * | 1996-07-27 | 1997-08-28 | Kloeckner Moeller Gmbh | Current-limiting circuit-breaker switch with two lugs on centrally pivoted lever |
US6084489A (en) * | 1998-09-08 | 2000-07-04 | General Electric Company | Circuit breaker rotary contact assembly locking system |
DE20313872U1 (en) * | 2003-09-06 | 2005-01-05 | Moeller Gmbh | Contact arrangement for current-limiting circuit breakers |
DE102008039066A1 (en) * | 2008-08-21 | 2010-02-25 | Siemens Aktiengesellschaft | Circuit-breaker for interrupting current flow, has press element arranged at bridging element for pressing surface of bridging element against component or housing in deflecting position, where housing comprises two contacts |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011077883A1 (en) * | 2011-06-21 | 2012-12-27 | Siemens Aktiengesellschaft | Electric power switch has electrical contact bridge that is permanently held in OFF position for short periods after pivoting contact bridge from ON position to OFF position |
DE102014224798A1 (en) | 2014-12-03 | 2016-06-09 | Siemens Aktiengesellschaft | Contact unit and electromechanical switching device |
Also Published As
Publication number | Publication date |
---|---|
CN102214530B (en) | 2015-11-25 |
CN102214530A (en) | 2011-10-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0174904B1 (en) | Contact device for a low voltage circuit breaker with a two-armed contact lever | |
EP2845213B1 (en) | Three-position load isolating switch for medium-voltage switchgear assemblies | |
EP2704172B1 (en) | Rotor for an electrical switch | |
DE102007012123A1 (en) | Molded Case Circuit Breakers | |
EP2479776B1 (en) | Electric switch | |
DE3105774C2 (en) | ||
DE3411273A1 (en) | CIRCUIT BREAKER | |
EP2789000B1 (en) | Switching device, more particularly a load interrupter switch, for medium-voltage switching systems | |
DE102010014428A1 (en) | Multipole electrical switching device comprises two switching poles, a drive mechanism and a switching shaft, which is capable of rotating under the effect of the drive mechanism about an axis of rotation formed by pivot bearings | |
WO2011045428A1 (en) | Multipole electrical switching device | |
DE102011078846A1 (en) | Current interruption device for use in fusible disconnecting switch, has driving part and mobile contact parts driven in manner such that driving part and mobile contact parts are turned synchronously around rotation axis of body | |
EP2846339B1 (en) | Rotor for an electrical switch | |
EP0756754B1 (en) | Drive device with a locking device to prevent switch shaft rebound | |
DE1638114B2 (en) | CURRENT LIMITING SWITCH | |
EP0959483B1 (en) | Load break switch with arc extinguishing chamber | |
CH620791A5 (en) | ||
DE102014110757A1 (en) | switchgear | |
DE3736165C2 (en) | Circuit breaker | |
EP3830857B1 (en) | Quick release latch, release mechanism and quick earthing device, high-speed switch or short circuiter | |
DE3544864A1 (en) | ELECTRICAL INTERRUPTER WITH PROTECTIVE WALL | |
DE102010015286A1 (en) | Switch, in particular switch disconnector | |
EP2898525B1 (en) | Circuit breaker contact system | |
EP1709659B1 (en) | Electromechanical switch | |
DE19539997C2 (en) | High-voltage switch with at least one main switching point and with at least one secondary switching point | |
DE102008009439A1 (en) | Electrical circuit-breaker, has contact connected with terminals by paths running parallel to fixed pieces at side turned away from movable pieces in area of fixed pieces, where current flows in area along certain direction |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20131101 |