DE102007044844A1 - Switch i.e. low-voltage circuit-breaker, for interrupting current to protect downstream loads during short-circuit, has cover connected with armature and present between opening and coil, where cover closes can in its holding position - Google Patents
Switch i.e. low-voltage circuit-breaker, for interrupting current to protect downstream loads during short-circuit, has cover connected with armature and present between opening and coil, where cover closes can in its holding position Download PDFInfo
- Publication number
- DE102007044844A1 DE102007044844A1 DE200710044844 DE102007044844A DE102007044844A1 DE 102007044844 A1 DE102007044844 A1 DE 102007044844A1 DE 200710044844 DE200710044844 DE 200710044844 DE 102007044844 A DE102007044844 A DE 102007044844A DE 102007044844 A1 DE102007044844 A1 DE 102007044844A1
- Authority
- DE
- Germany
- Prior art keywords
- coil
- armature
- switch
- pot
- holding position
- 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- Withdrawn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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/12—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by voltage falling below a predetermined value, e.g. for no-volt protection
-
- 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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/2454—Electromagnetic mechanisms characterised by the magnetic circuit or active magnetic elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
-
- 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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/26—Electromagnetic mechanisms with windings acting in opposition
-
- 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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/32—Electromagnetic mechanisms having permanently magnetised part
- H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
Description
Die Erfindung betrifft einen Schalter, insbesondere einen Niederspannungs-Leistungsschalter, zum Unterbrechen eines durch den Schalter fließenden Stroms gemäß dem Oberbegriff des Anspruchs 1.The The invention relates to a switch, in particular a low-voltage circuit breaker, for Interrupting a current flowing through the switch according to the preamble of claim 1.
Schalter, insbesondere Niederspannungs-Leistungsschalter, sind bekannt und dienen zum Unterbrechen eines durch den Schalter fließenden Stroms, um z. B. nachgeschaltete Verbraucher im Falle eines Kurzschlusses zu schützen. Zum Auslösen des Schalters wird ein Auslöser betätigt, indem ein Anker in seine Auslösestellung verschoben wird, wenn die am Schalter und damit am Auslöser anliegende elektrische Spannung einen vorgegebenen Schwellwert unterschreitet (sogenannter Unterspannungsauslöser).Switch, In particular, low-voltage circuit breakers are known and serve to interrupt a flowing through the switch Electricity to z. B. downstream consumers in the event of a short circuit to protect. To trigger the switch is a Trigger actuated by placing an anchor in its release position is moved when the switch and thus the trigger voltage applied below a predetermined threshold (so-called undervoltage release).
Dabei erzeugt die am Auslöser anliegende elektrische Spannung mittels einer Spule ein erstes Magnetfeld, welches den Anker entgegen einer Federkraft in seiner Grundstellung hält. Unterschreitet die Spannung einen vorgegebenen Schwellwert, so reicht die auf den Anker wirkende Federkraft aus, um ihn in die Auslösestellung zu verschieben.there generates the electrical voltage applied to the trigger by means of a coil, a first magnetic field which counteracts the armature a spring force in its normal position holds. Falls below the Voltage a predetermined threshold, so that's enough on the anchor acting spring force to him in the release position to move.
Außerdem wird der Anker in seine Auslösestellung verschoben, wenn ein entsprechender elektrischer Spannungsimpuls auf den Auslöser (sogenannter Spannungsauslöser) gegebenen wird, der mittels einer zweiten Spule ein zweites Magnetfeld erzeugt, welches das erste Magnetfeld schwächt.Furthermore the anchor is moved to its release position when a corresponding electrical voltage pulse on the trigger (so-called voltage release) is given by means of a second coil generates a second magnetic field, which is the first magnetic field weakens.
In seiner Auslösestellung entriegelt der Anker eine Verklinkung, welche den Niederspannungs-Leistungsschalter öffnet.In its release position unlocks the anchor a latch, which opens the low-voltage circuit breaker.
Solche
kombinierten Auslöser für Niederspannungs-Leistungsschalter
sind bereits aus der
Nachteilig ist bei den Auslösern der bekannten Schalter, dass diese parasitäre Luftspalte aufweisen, welche beispielsweise zu einer unerwünschten Überdimensionierung des Auslösers führen.adversely is at the triggers of the known switch that these have parasitic air gaps, which, for example to an undesirable oversizing of the Trigger.
Die Aufgabe der Erfindung ist es, parasitäre Luftspalte zu vermeiden.The The object of the invention is to parasitic air gaps avoid.
Die Lösung ist durch die Merkmale des Anspruchs 1 gegeben; die Unteransprüche stellen vorteilhafte Ausgestaltungen dar.The Solution is given by the features of claim 1; the dependent claims provide advantageous embodiments represents.
Die Lösung sieht vor, dass die beiden Spulen bezogen auf die magnetischen Achsen der von ihnen erzeugten Magnetfelder auf einer gemeinsamen Achse liegend angeordnet sind, dass die erste Spule sich in einem magnetflussleitenden Topf befindet und dessen Topföffnung der zweiten Spule zugewandt angeordnet ist, dass sich zwischen der Topföffnung und der zweiten Spule ein mit dem Anker längs der Ankerachse verschiebbarer und mit diesem fest verbundener magnetflussleitender Deckel befindet, der in seiner Grundstellung den Topf verschließt. Auf diese Weise wird eine verbesserte Führung des magnetischen Flusses erzielt, bei der keine funktionsbedingten parasitären Luftspalte mehr vorhanden sind. Auch ist der Aufbau technisch relativ einfach, da nur wenige Magnetfluss führende Teile zu montieren sind. Die Magnetwiderstände zwischen den feststehenden Teilen sowie der Widerstand des Arbeitsluftspaltes in den beiden Endlagen (Grundstellung, Auslösestellung) des Ankers sind konstant und nur noch von den Fertigungstoleranzen der Magnetfluss führenden Teile ab hängig. Das notwendigerweise erforderliche Radialspiel der der Ankerführung hat keinen Einfluss mehr auf die Auslösung.The Solution provides that the two coils relative to the magnetic axes of the magnetic fields generated by them on one Common axis are arranged horizontally, that the first coil itself located in a magnetic flux conducting pot and its pot opening The second coil is arranged facing that between the Pot opening and the second coil along with the anchor the armature axis displaceable and permanently connected with this magnetic flux Lid is located, which closes the pot in its basic position. In this way, an improved leadership of the magnetic Flow achieved, with no functional parasitic Air gaps are more present. Also, the structure is technically relative easy, since only a few magnetic flux leading parts are to be mounted. The magnetoresistors between the fixed parts and the resistance of the working air gap in the two end positions (Basic position, release position) of the armature are constant and only leading from the manufacturing tolerances of the magnetic flux Dependent parts. The necessarily required radial play the armature guide has no influence on the release.
Eine technisch einfachere Lösung des Schalters sieht vor, dass das erste Magnetfeld von dem zweiten Magnetfeld geschwächt wird, wenn an der zweiten Spule ein Spannungsimpuls anliegt und der Anker von einer elastischen Kraft beaufschlagt ist, die den Anker bei entsprechend geschwächtem ersten Magnetfeld verschiebt.A technically simpler solution of the switch provides that the first magnetic field weakened by the second magnetic field is, if at the second coil, a voltage pulse is applied and the Anchor is acted upon by an elastic force acting on the anchor shifts at correspondingly weakened first magnetic field.
Der Schalter lässt sich verbessern, wenn die zweite Spule ebenfalls in einem magnetflussleitenden Topf angeordnet ist und die beiden Töpfe mit einander zugewandt Topföffnungen konzentrisch zueinander angeordnet sind.Of the Switch can be improved if the second coil also is disposed in a magnetic flux conducting pot and the two Pots with each other facing pot openings concentric are arranged to each other.
Die
Erfindung wird nachfolgend anhand einer Figur näher beschrieben,
die in einer schematischen Darstellung eine Verklinkung
Im
Auslösefall wird ein Anker
Im
Nichtauslösefall, also während des normalen Betriebs
des Schalters
Der
Anker
Wie
die Figur zeigt, ist die Spule
Die
Spule
Die
Verwendung eines Topfes
Der
Topföffnung
Die
beiden Spulen
Liegt
ein elektrischer Spannungsimpuls Uv an der Spule
Der
Spannungsimpuls Uv ist so gewählt, dass die Schwächung
des Magnetfelds der Spule
Wie
die Figur zeigt, befindet sich auch die Spule
Bei
anliegendem Spannungsimpuls Uv bewegt sich der Deckel
Durch
die Verwendung zweier Töpfe
Eine
in Bezug auf parasitären Luftspalte verbesserte Funktion
des Auslösers
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - US 4641107 A [0006] - US 4641107 A [0006]
- - US 4013926 A [0006] - US 4013926 A [0006]
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710044844 DE102007044844A1 (en) | 2007-09-14 | 2007-09-14 | Switch i.e. low-voltage circuit-breaker, for interrupting current to protect downstream loads during short-circuit, has cover connected with armature and present between opening and coil, where cover closes can in its holding position |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710044844 DE102007044844A1 (en) | 2007-09-14 | 2007-09-14 | Switch i.e. low-voltage circuit-breaker, for interrupting current to protect downstream loads during short-circuit, has cover connected with armature and present between opening and coil, where cover closes can in its holding position |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007044844A1 true DE102007044844A1 (en) | 2009-03-19 |
Family
ID=40348671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200710044844 Withdrawn DE102007044844A1 (en) | 2007-09-14 | 2007-09-14 | Switch i.e. low-voltage circuit-breaker, for interrupting current to protect downstream loads during short-circuit, has cover connected with armature and present between opening and coil, where cover closes can in its holding position |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007044844A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012025803A1 (en) * | 2010-08-24 | 2012-03-01 | Larsen & Toubro Limited | Electrical operating mechanism for molded case circuit breaker using two plungers |
DE102012218411A1 (en) | 2012-10-10 | 2014-06-12 | Bayerische Motoren Werke Aktiengesellschaft | Vehicle, has power switch provided with dielectric element to attenuate power switch mediated electromagnetic interaction between high and down volt onboard networks in switched and non-switched states of power switch |
CN104347304A (en) * | 2014-10-16 | 2015-02-11 | 平高集团有限公司 | Ultra-high-speed mechanical switch |
CN104362050A (en) * | 2014-10-16 | 2015-02-18 | 平高集团有限公司 | Repulsion operation mechanism |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4013926A (en) | 1975-07-11 | 1977-03-22 | Westinghouse Electric Corporation | Circuit breaker with improved trip actuator and undervoltage release mechanism |
US4641107A (en) | 1985-05-21 | 1987-02-03 | Rca Corporation | Printed circuit radial power combiner with mode suppressing resistors fired at high temperature |
-
2007
- 2007-09-14 DE DE200710044844 patent/DE102007044844A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4013926A (en) | 1975-07-11 | 1977-03-22 | Westinghouse Electric Corporation | Circuit breaker with improved trip actuator and undervoltage release mechanism |
US4641107A (en) | 1985-05-21 | 1987-02-03 | Rca Corporation | Printed circuit radial power combiner with mode suppressing resistors fired at high temperature |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012025803A1 (en) * | 2010-08-24 | 2012-03-01 | Larsen & Toubro Limited | Electrical operating mechanism for molded case circuit breaker using two plungers |
DE102012218411A1 (en) | 2012-10-10 | 2014-06-12 | Bayerische Motoren Werke Aktiengesellschaft | Vehicle, has power switch provided with dielectric element to attenuate power switch mediated electromagnetic interaction between high and down volt onboard networks in switched and non-switched states of power switch |
CN104347304A (en) * | 2014-10-16 | 2015-02-11 | 平高集团有限公司 | Ultra-high-speed mechanical switch |
CN104362050A (en) * | 2014-10-16 | 2015-02-18 | 平高集团有限公司 | Repulsion operation mechanism |
CN104347304B (en) * | 2014-10-16 | 2017-07-21 | 平高集团有限公司 | A kind of ultrahigh speed mechanical switch |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OR8 | Request for search as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: SIEMENS AKTIENGESELLSCHAFT, 80333 MUENCHEN, DE |
|
8105 | Search report available | ||
R163 | Identified publications notified |
Effective date: 20110225 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20110401 |