EP2097918B1 - Electrical switch - Google Patents
Electrical switch Download PDFInfo
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- EP2097918B1 EP2097918B1 EP07819344A EP07819344A EP2097918B1 EP 2097918 B1 EP2097918 B1 EP 2097918B1 EP 07819344 A EP07819344 A EP 07819344A EP 07819344 A EP07819344 A EP 07819344A EP 2097918 B1 EP2097918 B1 EP 2097918B1
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- European Patent Office
- Prior art keywords
- lever
- contact
- point
- force
- contact point
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- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002996 emotional effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
-
- 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
- H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
-
- 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
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
Definitions
- the invention relates to an electrical switch according to the preamble of claim 1.
- Such a switch is for example in the DE 195 26 591 A1 and in the DE 195 26 592 C2 described.
- It has a main current path in which there is a main contact point comprising a fixed and a movable contact piece, wherein the movable contact piece is fixed to a pivotally mounted in a fixed axis of rotation justifyhebelarm.
- a generic switch has a Maustrompfad in which a Trennuxstelle - also called secondary contact point - is located, which also includes a fixed and a movable contact piece, wherein the movable contact piece is fixed to a pivotally mounted in a stationary axis of rotation contact carrier, and on the in a short circuit case, the current is commutated by the main current path.
- the main contact point and the auxiliary contact point can be actuated with a shift lever and with a switch lock mounted with its individual components in a circuit board holder.
- the contact lever is a double arm, at the movable contact opposite arm a control lever engages the other end is pivotally connected via a pivot pin with a first intermediate lever, and the the other end of the intermediate lever is pivotally connected to a second intermediate lever articulated on the switch knob.
- the pivot pin, with which the two intermediate levers are connected to each other, is guided in a slot of a rotatably mounted ratchet lever.
- the trigger elements ie thermal and magnetic triggers, act on the switch lock, wherein the levers are arranged and interact with each other, that when switching on the switching sequence "secondary contact leading, main contact lagging" is realized.
- At the contact lever acts a contact pressure spring and tries to press the movable contact piece with a given contact force against the fixed contact piece.
- a switch-off spring in the form of a pressure spring acts on the control lever and attempts to press it against the force of the contact pressure spring in the direction of switching off the main contact point.
- the opening spring has a lot of space, their spring force on the control lever always acts in the same direction. It must be able to exert even in the partially relaxed state, such a high force on the control lever to overpress the force of the contact pressure spring.
- the pressure force of the opening spring acts directly on the Verklinkungsstelle and determines the Entklinkungskraft, which must be applied by the thermal release release.
- the opening spring engages the pivot connecting the control lever and the first intermediate lever and acts on the control lever in the direction of switching off the main contact point via the pivot, the force introduction of the opening spring being arranged on the pivot so that a first, smaller partial force in the direction of Verklinkungsstelle acts, and a second, larger partial force acts on the control lever.
- the opening spring thus no longer acts directly on the control lever, but on the pivot connecting the control lever with the first intermediate lever.
- the direction of the force introduction is selectable and can be arranged so that a decomposition of the force of the opening spring takes place in two components, one of which acts in the direction of Verklinkungsstelle, and a second control lever are applied in the direction of switching off.
- the introduction of force is arranged so that the first, acting in the direction of Verklinkungsstelle partial force is as small as possible, and only the second, acting on the control lever partial force is as large as possible.
- the opening spring is a torsion spring, also called leg spring, the first leg is supported at a stationary point, and via the second leg, the force is applied to the pivot.
- Torsion springs are spatially wound bending springs with a linear torque characteristic.
- the force or torque is introduced via the legs at the beginning and end of the spring. They can be adapted in many ways to the existing spatial conditions. By using a torsion spring for realizing the present invention, therefore, the limited space inside the electrical switch according to the invention can be particularly well utilized.
- the torsion spring is wound around the stationary axis of rotation of the contact carrier of the isolating contact point. Then, the axis of rotation of the contact lever acts as a working mandrel against which the torsion spring rests with its inner winding opening and is thereby held.
- the axis of rotation of the contact carrier of the isolating contact point is replaced by an additional function, and it is no separate holder for the torsion spring necessary.
- the switch lock has a main contact point 10 with a fixed contact piece 11 and a fixed to a contact lever 12 movable contact 13th
- the contact lever 12 is rotatably mounted on a stationary axis of rotation 14 and formed as a double arm whose first arm 15 carries the contact piece 13 and on the second arm 16, a control lever 17 engages the contact lever 12 from the closed position (see FIG. 1 ) in the off position (see FIG. 2 ) emotional.
- the control lever 17 is connected via a pivot pin 18 with a first intermediate lever 19. This is hingedly connected via a pivot pin 20 with a second intermediate lever 21 which is hinged to a hinge axis 23 to a switch knob 24 with a control handle 25.
- the switch knob 24 is mounted in a stationary axis 22.
- the pivot pin 20 is movably guided in a slot 26 of a pawl lever 27.
- the pawl lever 27 is rotatably mounted in a stationary manner about a rotation axis 28.
- the latch lever 27 forms a latching point 31, which is rotatably mounted about a stationarily mounted axle 29.
- the release lever 30 is designed as a double arm, the first, the Verklinkungsstelle zugeneippo arm 301 carries a nose 302 which forms the Verklinkungsstelle 31 together with a nose 271 of the ratchet lever 27.
- the second, from the Verklinkungsstelle 31 pioneering arm 303 of the trigger lever 30 carries a nose 304.
- the thermal triggers must overcome at least that force with which the nose 271 acts on the nose 302 and is therefore called Entklinkungskraft.
- a stationary axis of rotation 33 is provided, on which a contact carrier 34 is mounted, which carries a contact lever 35.
- the isolating contact point 37 has a fixed contact piece 38, which may be connected in a stationary manner and in an electrically conductive manner to the fixed contact piece 11 of the main contact point 10, indicated by a dashed connecting line 138.
- the contact carrier 34 is designed as a double-arm carrier.
- the one, the main contact point 10 facing arm 39 carries the contact lever 35 and the movable contact piece 36.
- the projecting in the opposite direction, the second arm 40 has a projection 49th
- a nose 48 is formed, which cooperates with the projection 49 on the contact carrier 34 of the shape that the separating contact point 37 during the opening process the main contact point 10 opens after opening the main contact point 10 and when closing the main contact point 10 before closing this main contact point 10 is already closed.
- the connecting line of the pivot pin 20 with the hinge axis 23, which carries the reference numeral 46, runs in the open position according to FIG. 2 below the connecting line 47, which extends between the pivot pin 20 and the stationary axis 22 of the switch knob 24. This is the first stable position of the derailleur in the off position.
- a torsion spring 51 is wound.
- a first leg 52 of the torsion spring 51 is supported at a fixed point 53.
- This stationary point 53 may be a projection or a recess on the inside of the housing wall of the switch, but it may also be a storage location on the board holder of the switch latch.
- a second leg 54 of the torsion spring 51 is supported at its free end against the pivot pin 18 which connects the control lever 17 with the first intermediate lever 19 from.
- the spring force which is perpendicular to the second leg 54 in the point of contact between the leg 54 and the pivot pin 18 is introduced thereto, by an arrow 55 designated. It is divided into a first, smaller partial force, designated by the arrow 56, which is directed into the first intermediate lever 19, and in a second, larger partial force, indicated by the arrow 57, which the control lever 17 in the direction "opening the main contact point 10 "seeks to postpone.
- the second, larger partial force 57 is so great that it can overcome the contact pressure force 50 and can open the main contact point 10 and the separating contact point 37 via the control lever 17.
- the second part of force 57 of the torsion spring 51 can be supported by the force of another tension spring which is hinged on the one hand to the control lever 17 and on the other hand to the second arm 40 of the contact carrier 34.
- This further tension spring is not shown here, but it is with their function in the above-mentioned documents DE 195 26 591 and DE 195 26 592 described.
- the other tension spring is also not essential to the invention and not required for the functioning of a switch according to the invention.
- the trigger lever 30 When triggered, therefore, the trigger lever 30 would be pivoted clockwise, thereby releasing the low Entklinkungskraft 56 the latching point 31.
- the pivot pin 20 is released in the slot 26 of the pawl lever 27 and the control lever 17 can be pressed away by the second, larger partial force 57 of the defined by the fixed contact piece 11 of the main contact point 10 and the axis of rotation 14 of the contact lever 12 fixing level.
- the control lever 17 takes over a guide pin 58 with the second arm 16 of the contact lever 12 and pivots it against the contact pressure force 50 and counterclockwise so that the main contact point 10 is opened.
Landscapes
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Glass Compositions (AREA)
- Saccharide Compounds (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Push-Button Switches (AREA)
- Mechanisms For Operating Contacts (AREA)
- Lock And Its Accessories (AREA)
- Air Bags (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Abstract
Description
Die Erfindung betrifft einen elektrischen Schalter gemäß dem Oberbegriff des Anspruchs 1.The invention relates to an electrical switch according to the preamble of
Ein derartiger Schalter ist beispielsweise in der
Er hat einen Hauptstrompfad, in dem sich eine Hauptkontaktstelle befindet, die ein feststehendes und ein bewegbareres Kontaktstück umfasst, wobei das bewegbare Kontaktstück an einem in einer ortsfesten Drehachse schwenkbar gelagerten Kontakthebelarm befestigt ist.It has a main current path in which there is a main contact point comprising a fixed and a movable contact piece, wherein the movable contact piece is fixed to a pivotally mounted in a fixed axis of rotation Kontakthebelarm.
Weiterhin hat ein gattungsgemäßer Schalter einen Nebenstrompfad, in dem sich eine Trennkontaktstelle - auch Nebenkontaktstelle genannt - befindet, die ebenfalls ein feststehendes und ein bewegliches Kontaktstück umfasst, wobei das bewegliche Kontaktstück an einem in einer ortsfesten Drehachse schwenkbar gelagerten Kontaktträger befestigt ist, und auf den in einem Kurzschlussfall der Strom von dem Hauptstrompfad kommutiert wird.Furthermore, a generic switch has a Nebenstrompfad in which a Trennkontaktstelle - also called secondary contact point - is located, which also includes a fixed and a movable contact piece, wherein the movable contact piece is fixed to a pivotally mounted in a stationary axis of rotation contact carrier, and on the in a short circuit case, the current is commutated by the main current path.
Die Hauptkontaktstelle und die Nebenkontaktstelle sind mit einem Schalthebel und mit einem mit seinen einzelnen Komponenten in einer Platinenhalterung gelagerten Schaltschloss betätigbar.The main contact point and the auxiliary contact point can be actuated with a shift lever and with a switch lock mounted with its individual components in a circuit board holder.
Der Kontakthebel ist ein Doppelarmhebel, an dessen dem bewegbaren Kontaktstück entgegengesetzt liegenden Arm ein Steuerhebel angreift, dessen anderes Ende über einen Drehzapfen gelenkig mit einem ersten Zwischenhebel verbunden ist, und das andere Ende des Zwischenhebels ist mit einem am Schaltknebel angelenkten zweiten Zwischenhebel gelenkig angeschlossen.The contact lever is a double arm, at the movable contact opposite arm a control lever engages the other end is pivotally connected via a pivot pin with a first intermediate lever, and the the other end of the intermediate lever is pivotally connected to a second intermediate lever articulated on the switch knob.
Der Gelenkzapfen, mit dem die beiden Zwischenhebel miteinander verbunden sind, ist in einem Langloch eines drehbar gelagerten Klinkenhebels geführt.The pivot pin, with which the two intermediate levers are connected to each other, is guided in a slot of a rotatably mounted ratchet lever.
Es ist ferner ein Auslösehebel vorgesehen, mit dem der Klinkenhebel eine Verklinkungsstelle bildet.There is also provided a release lever, with which the latch lever forms a Verklinkungsstelle.
An dem Auslösehebel wirken die Auslöserelemente, also thermische und magnetische Auslöser, auf das Schaltschloss, wobei die Hebel so angeordnet sind und miteinander wechselwirken, dass beim Wiedereinschalten die Schaltfolge" Nebenkontakt voreilend, Hauptkontakt nacheilend" verwirklicht ist.At the release lever, the trigger elements, ie thermal and magnetic triggers, act on the switch lock, wherein the levers are arranged and interact with each other, that when switching on the switching sequence "secondary contact leading, main contact lagging" is realized.
An dem Kontakthebel wirkt eine Kontaktdruckfeder und versucht, das bewegliche Kontaktstück mit einer gegebenen Kontaktkraft gegen das feste Kontaktstück zu drücken.At the contact lever acts a contact pressure spring and tries to press the movable contact piece with a given contact force against the fixed contact piece.
Bei bekannten gattungsgemäßen Schaltern greift an dem Steuerhebel eine Ausschaltfeder in Form einer Druckfeder an und versucht, diesen entgegen der Kraft der Kontaktdruckfeder in Richtung Ausschalten der Hauptkontaktstelle zu drücken. Die Ausschaltfeder hat dabei einen großen Platzbedarf, ihre Federkraft auf den Steuerhebel wirkt immer in die gleiche Richtung. Sie muss dabei auch im teilweise entspannten Zustand noch eine so hohe Kraft auf den Steuerhebel ausüben können, um die Kraft der Kontaktdruckfeder zu überdrücken. Dabei wirkt die Druckkraft der Ausschaltfeder direkt auf die Verklinkungsstelle und bestimmt die Entklinkungskraft, welche von dem thermischer Auslöser zum Entklinken aufgebracht werden muss.In known generic switches, a switch-off spring in the form of a pressure spring acts on the control lever and attempts to press it against the force of the contact pressure spring in the direction of switching off the main contact point. The opening spring has a lot of space, their spring force on the control lever always acts in the same direction. It must be able to exert even in the partially relaxed state, such a high force on the control lever to overpress the force of the contact pressure spring. The pressure force of the opening spring acts directly on the Verklinkungsstelle and determines the Entklinkungskraft, which must be applied by the thermal release release.
Somit stellt sich bei bekannten gattungsgemäßen Schaltern das Problem, dass die Ausschaltfeder zwei entgegengesetzten Anforderungen genügen muss. Um ein sicheres Ausschalten zu gewährleisten, sollte die Kraft, die sie auf den Steuerhebel ausübt, möglichst hoch sein. Um ein sicheres entklinken durch den thermischen Auslöser zu gewährleisten, sollte diese Kraft jedoch möglichst klein sein. Bei bekannten gattungsgemäßen Schaltern wird immer ein Kompromiss eingegangen, keine der Anforderungen ist vollständig erfüllt.Thus arises in known generic switches, the problem that the opening spring must meet two opposite requirements. To ensure a safe shutdown, the force exerted on the control lever should be as high as possible. To ensure a safe unlatching by the thermal release, this force should be as small as possible. In known generic switches, a compromise is always made, none of the requirements is fully met.
Es ist daher die Aufgabe der vorliegenden Erfindung, einen gattungsgemäßen Schalter so weiterzuentwickeln, dass eine hohe Kraft auf den Steuerhebel ausgeübt wird und gleichzeitig eine niedrige Kraft auf die Verklinkungsstelle.It is therefore the object of the present invention to develop a generic switch so that a high force is exerted on the control lever and at the same time a low force on the Verklinkungsstelle.
Die Aufgabe wird erfindungsgemäß gelöst durch einen gattungsgemäßen Schaltern mit den kennzeichnenden Merkmalen des Anspruchs 1.The object is achieved by a generic switches with the characterizing features of
Erfindungsgemäß greift also die Ausschaltfeder an dem den Steuerhebel und den ersten Zwischenhebel verbindenden Drehzapfen an und beaufschlagt über den Drehzapfen den Steuerhebel in Richtung Ausschalten der Hauptkontaktstelle, wobei die Krafteinleitung der Ausschaltfeder an den Drehzapfen so eingerichtet ist, dass eine erste, kleinere Teilkraft in Richtung der Verklinkungsstelle wirkt, und eine zweite, größere Teilkraft auf den Steuerhebel wirkt.Thus, according to the invention, the opening spring engages the pivot connecting the control lever and the first intermediate lever and acts on the control lever in the direction of switching off the main contact point via the pivot, the force introduction of the opening spring being arranged on the pivot so that a first, smaller partial force in the direction of Verklinkungsstelle acts, and a second, larger partial force acts on the control lever.
Gemäß der Erfindung greift die Ausschaltfeder also nicht mehr direkt an dem Steuerhebel an, sondern an dem Drehzapfen, der den Steuerhebel mit dem ersten Zwischenhebel verbindet. Dadurch ist die Richtung der Krafteinleitung wählbar und kann so eingerichtet werden, dass eine Zerlegung der Kraft der Ausschaltfeder in zwei Komponenten stattfindet, von denen eine in Richtung der Verklinkungsstelle wirkt, und eine zweite sind Steuerhebel in Richtung Ausschalten beaufschlagt. Die Krafteinleitung ist dabei so eingerichtet, dass die erste, in Richtung der Verklinkungsstelle wirkende Teilkraft möglichst klein wird, und nur die zweite, auf den Steuerhebel wirkende Teilkraft, möglichst groß ist.According to the invention, the opening spring thus no longer acts directly on the control lever, but on the pivot connecting the control lever with the first intermediate lever. Thereby, the direction of the force introduction is selectable and can be arranged so that a decomposition of the force of the opening spring takes place in two components, one of which acts in the direction of Verklinkungsstelle, and a second control lever are applied in the direction of switching off. The introduction of force is arranged so that the first, acting in the direction of Verklinkungsstelle partial force is as small as possible, and only the second, acting on the control lever partial force is as large as possible.
Gemäß einer besonders vorteilhaften Ausführungsform der Erfindung ist die Ausschaltfeder eine Drehfeder, auch Schenkelfeder genannt, deren erster Schenkel an einem ortsfesten Punkt abgestützt ist, und über deren zweiten Schenkel die Krafteinleitung auf den Drehzapfen erfolgt.According to a particularly advantageous embodiment of the invention, the opening spring is a torsion spring, also called leg spring, the first leg is supported at a stationary point, and via the second leg, the force is applied to the pivot.
Drehfedern sind räumlich gewundene Biegefedern mit einer linearen Drehmomentkennlinie. Die Kraft - oder Drehmomenteinleitung erfolgt über die Schenkel am Anfang und Ende der Feder. Sie können in vielfältiger Weise den jeweils vorhandenen räumlichen Gegebenheiten angepasst werden. Durch die Verwendung einer Drehfeder zur Verwirklichung der vorliegenden Erfindung kann also der beschränkte Platz im Inneren des erfindungsgemäßen elektrischen Schalters besonders gut ausgenutzt werden.Torsion springs are spatially wound bending springs with a linear torque characteristic. The force or torque is introduced via the legs at the beginning and end of the spring. They can be adapted in many ways to the existing spatial conditions. By using a torsion spring for realizing the present invention, therefore, the limited space inside the electrical switch according to the invention can be particularly well utilized.
Sehr vorteilhaft ist dabei eine Ausführungsform, bei der die Drehfeder um die ortsfeste Drehachse des Kontaktträgers der Trennkontaktstelle gewunden ist. Dann wirkt die Drehachse des Kontakthebel als Arbeitsdorn, an dem die Drehfeder mit ihrer inneren Windungsöffnung anliegt und dadurch gehalten wird. Die Drehachse des Kontaktträgers der Trennkontaktstelle erhält dadurch eine zusätzliche Funktion, und es ist keine separate Halterung für die Drehfeder nötig.Very advantageous is an embodiment in which the torsion spring is wound around the stationary axis of rotation of the contact carrier of the isolating contact point. Then, the axis of rotation of the contact lever acts as a working mandrel against which the torsion spring rests with its inner winding opening and is thereby held. The axis of rotation of the contact carrier of the isolating contact point is replaced by an additional function, and it is no separate holder for the torsion spring necessary.
Anhand der Zeichnungen, in denen ein Ausführungsbeispiel der Erfindung dargestellt ist, sollen die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung näher erläutert und beschrieben werden.Reference to the drawings, in which an embodiment of the invention is shown, the invention and further advantageous refinements and improvements of the invention will be explained and described in detail.
Es zeigen:
- Figur 1:
- das Schaltschloss eines erfindungsgemäßem Schalters in geschlossener Stellung, und
- Figur 2:
- das Schaltschloss gemäß
mit geöffnetem Haupt - und Nebenkontakt.Figur 1
- FIG. 1:
- the switching mechanism of a switch according to the invention in the closed position, and
- FIG. 2:
- the switch lock according to
FIG. 1 with opened main and sub contact.
Das Schaltschloss besitzt eine Hauptkontaktstelle 10 mit einem festen Kontaktstück 11 und einem an einem Kontakthebel 12 befestigten beweglichen Kontaktstück 13.The switch lock has a
Der Kontakthebel 12 ist an einer ortsfesten Drehachse 14 drehbar gelagert und als Doppelarmhebel ausgebildet, dessen erster Arm 15 das Kontaktstück 13 trägt und an dessen zweitem Arm 16 ein Steuerhebel 17 angreift, die den Kontakthebel 12 aus der Einschaltstellung (siehe
An dem Kontakthebel wirkt eine - nicht dargestellte - Kontaktdruckfeder und versucht, das bewegliche Kontaktstück 13 mit der durch den Pfeil 50 angedeuteten Kontaktkraft gegen das feste Kontaktstück 11 zu drücken.At the contact lever acts - not shown - contact pressure spring and tries to press the
Der Steuerhebel 17 ist über einen Drehzapfen 18 mit einem ersten Zwischenhebel 19 verbunden. Diese ist über einen Gelenkzapfen 20 mit einem zweiten Zwischenhebel 21 gelenkig verbunden, der an einer Gelenkachse 23 an einem Schaltknebel 24 mit einem Schaltgriff 25 angelenkt ist. Der Schaltknebel 24 ist in einer ortsfesten Achse 22 gelagert.The
Der Gelenkzapfen 20 ist in einem Langloch 26 eines Klinkenhebels 27 beweglich geführt. Der Klinkenhebel 27 ist ortsfest um eine Drehachse 28 drehbar gelagert. Der Klinkenhebel 27 bildet mit einem um eine ortsfest gelagerte Achse 29 drehbar gelagerten Auslösehebel 30 eine Verklinkungsstelle 31.The
Der Auslösehebel 30 ist als Doppelarmhebel ausgebildet, dessen erster, der Verklinkungsstelle zugeneigte Arm 301 eine Nase 302 trägt, die zusammen mit einer Nase 271 des Klinkenhebels 27 die Verklinkungsstelle 31 bildet. Der zweite, von der Verklinkungsstelle 31 wegweisende Arm 303 des Auslösehebels 30 trägt eine Nase 304. An dieser Nase 304 greifen der oder die thermischen Auslöser des Schalters an, beispielsweise über - hier nicht dargestellte - Schieber. Durch Einwirkung der thermischen Auslöser wird der Auslösehebel 30 beim Auslöservorgang im Uhrzeigersinn verschwenkt, so dass die Nase 302 die Nase 271 freigibt, wodurch die Verklinkungsstelle 31 entklinkt wird. Dabei müssen die thermischen Auslöser mindestens diejenige Kraft überwinden, mit der die Nase 271 auf die Nase 302 einwirkt und die daher Entklinkungskraft genannt wird.The
Zwischen der Verbindungslinie, welche die ortsfeste Drehachse 28 des Klinkenhebels 27 und die ortsfeste Achse 22 des Schaltknebels 24 verbindet, und der Kontaktstelle 10 ist eine ortsfeste Drehachse 33 vorgesehen, an der ein Kontaktträger 34 gelagert ist, der einen Kontakthebel 35 trägt.Between the connecting line, which connects the stationary axis of
An dem freien Ende des Kontakthebels 35 ist das bewegliche Kontaktstück 36 einer Trennkontaktstelle 37 befestigt. Die Trennkontaktstelle 37 besitzt ein festes Kontaktstück 38, das ortsfest und elektrisch leitend mit dem festen Kontaktstück 11 der Hauptkontaktstelle 10 verbunden sein kann, angedeutet durch eine strichlierte Verbindungslinie 138.At the free end of the
Der Kontaktträger 34 ist als Doppelarmträger ausgebildet. Der eine, der Hauptkontaktstelle 10 zugewandte Arm 39 trägt den Kontakthebel 35 und das bewegliche Kontaktstück 36. Der in entgegengesetzter Richtung vorspringende, zweite Arm 40 besitzt einen Vorsprung 49.The
An dem Steuerhebel 17 ist eine Nase 48 angeformt, die mit dem Vorsprung 49 an dem Kontaktträger 34 der Gestalt zusammenwirkt, dass die Trennkontaktstelle 37 beim Öffnungsvorgang der Hauptkontaktstelle 10 nach dem Öffnen der Hauptkontaktstelle 10 öffnet und beim Schließen der Hauptkontaktstelle 10 vor dem Schließen dieser Hauptkontaktstelle 10 schon geschlossen ist.On the
Die Verbindungslinie des Gelenkzapfens 20 mit der Gelenksachse 23, die die Bezugsziffer 46 trägt, verläuft in der Ausschaltstellung gemäß
In der Einschaltstellung gemäß
Um die ortsfeste Drehachse 33 des Kontaktträgers 34 ist eine Drehfeder 51 gewunden. Ein erster Schenkel 52 der Drehfeder 51 ist an einem ortsfesten Punkt 53 abgestützt. Dieser ortsfeste Punkt 53 kann einen Vorsprung oder eine Vertiefung auf der Innenseite der Gehäusewand des Schalters sein, es kann aber auch eine Lagerungsstelle an der Platinenhalterung des Schaltschlosses sein.To the stationary axis of
Ein zweiter Schenkel 54 der Drehfeder 51 stützt sich an seinem freien Ende gegen den Drehzapfen 18, der den Steuerhebel 17 mit dem ersten Zwischenhebel 19 verbindet, ab. Somit verfolgt über den zweiten Schenkel 54 der Drehfeder 51 die Krafteinleitung der Federkraft auf den Drehzapfen 18. Die Federkraft, die senkrecht zu dem zweiten Schenkel 54 in dem Berührungspunkt zwischen dem Schenkel 54 und dem Drehzapfen 18 auf diesen eingeleitet wird, ist durch einen Pfeil 55 bezeichnet. Sie wird zerlegt in eine erste, kleinerer Teilkraft, bezeichnet durch den Pfeil 56, welche in den ersten Zwischenhebel 19 gelenkt wird, und in eine zweite, größere Teilkraft, bezeichnet durch den Pfeil 57, welche den Steuerhebel 17 in Richtung "Öffnen der Hauptkontaktstelle 10" zu verschieben sucht.A
Nur die erste, kleinerer Teilkraft 56, welche in den ersten Zwischenhebel 19 gelenkt wird, erzeugt die Entklinkungskraft an der Verklinkungsstelle 31. Diese ist relativ klein, so dass von dem thermischen Auslöser auch nur eine kleine Auslöserkraft aufgebracht werden muss, welche an der Nase 304 auf den Auslösehebels 30 wirkt.Only the first, smaller
Die zweite, größere Teilkraft 57 ist so groß, dass sie die Kontaktdruckkraft 50 überwinden kann und über den Steuerhebel 17 die Hauptkontaktstelle 10 sowie die Trennkontaktstelle 37 öffnen kann. Gegebenenfalls kann die zweite Teilkraft 57 der Drehfeder 51 dabei unterstützt werden durch die Kraft einer weiteren Zugfeder, welche einerseits an dem Steuerhebel 17 und andererseits an dem zweiten Arm 40 des Kontaktträgers 34 angelenkt ist. Diese weitere Zugfeder ist hier nicht dargestellt, sie ist mit ihrer Funktion jedoch in den oben genannten Dokumenten
Im Auslösefall würde also der Auslösehebels 30 im Uhrzeigersinn verschwenkt und dabei unter Überwindung der geringen Entklinkungskraft 56 die Verklinkungsstelle 31 freigegeben. Dadurch wird der Gelenkzapfen 20 in dem Langloch 26 des Klinkenhebels 27 freigegeben und der Steuerhebel 17 kann durch die zweite, größere Teilkraft 57 von der durch das feste Kontaktstück 11 der Hauptkontaktstelle 10 und der Drehachse 14 des Kontakthebels 12 definierten Befestigungsebene weg gedrückt werden. Dabei nimmt der Steuerhebel 17 über einen Führungszapfen 58 den zweiten Arm 16 des Kontakthebels 12 mit und verschwenkt diesen entgegen der Kontaktdruckkraft 50 und entgegen dem Uhrzeigersinn so, dass die Hauptkontaktstelle 10 geöffnet wird.When triggered, therefore, the
Die Anordnung der aus dem ersten Zwischenhebel 19, dem zweiten Zwischenhebel 21 und dem Schaltknebel 24 gebildeten und über den Gelenkzapfens 20, der in dem Langloch 26 geführt ist, mit dem Klinkenhebel 27 zusammenwirkenden Gelenkkette ist so getroffen, dass der Schaltknebel 24 im Uhrzeigersinn und der Klinkenhebel 27 sofort wieder in seine Verklinkungslage verschwenkt werden, so dass, wenn der thermische Auslöser wieder abgekühlt ist und sich in seine Ausgangslage zurück bewegt hat, die Verklinkungsstelle 31 wieder verklinkt wird. Diese Position ist in der
Aus der in der
- 1010
- 10 Hauptkontaktstelle Hauptkontaktstelle10 main contact point main contact point
- 1111
- Festes Kontaktstück der HauptkontaktstelleFixed contact piece of the main contact point
- 1212
- Kontakthebel der HauptkontaktstelleContact lever of the main contact point
- 1313
- Bewegliches Kontaktstück der HauptkontaktstelleMovable contact piece of the main contact point
- 1414
- Drehachseaxis of rotation
- 1515
- Erster Arm des KontakthebelsFirst arm of the contact lever
- 1616
- Zweiter Arm des KontakthebelsSecond arm of the contact lever
- 1717
- Steuerhebelcontrol lever
- 1818
- Drehzapfenpivot
- 1919
- Erster ZwischenhebelFirst intermediate lever
- 2020
- Gelenkzapfenpivot pin
- 2121
- Zweiter ZwischenhebelSecond intermediate lever
- 2222
- Ortsfeste AchseFixed axis
- 2323
- Gelenkachsejoint axis
- 2424
- Schaltknebeltoggle switch
- 2525
- Schaltgriffshifter
- 2626
- LanglochLong hole
- 2727
- Klinkenhebelratchet lever
- 271271
- Nasenose
- 2828
- Drehachse des KlinkenhebelsRotary axis of the ratchet lever
- 2929
- Achse des AuslösehebelsAxle of the release lever
- 3030
- Auslösehebelsear
- 301301
- Erster Arm des AuslösehebelsFirst arm of the release lever
- 302302
- Nasenose
- 303303
- Zweiter Arm des AuslösehebelsSecond arm of the release lever
- 304304
- Nasenose
- 3131
- Verklinkungsstellelatching
- 3333
- Ortsfeste Drehachse des Kontaktträgers 34Fixed axis of rotation of the contact carrier 34th
- 3434
- Kontaktträgercontact support
- 3535
- Kontakthebel der TrennkontaktstelleContact lever of the isolating contact point
- 3636
- Bewegliches Kontaktstück der TrennkontaktstelleMovable contact piece of the isolating contact point
- 3737
- TrennkontaktstelleIsolating contact point
- 3838
- Festes Kontaktstück der TrennkontaktstelleFixed contact piece of the isolating contact point
- 138138
- Verbindungslinieconnecting line
- 3939
- Erster Arm des KontaktträgersFirst arm of the contact carrier
- 4040
- Zweite Arm des KontaktträgersSecond arm of the contact carrier
- 4646
- Verbindungslinie 20 - 23Connecting line 20 - 23
- 4747
- Verbindungslinie 20 - 22Connecting line 20 - 22
- 4848
- Nasenose
- 5050
- KontaktdruckkraftContact pressure force
- 5151
- Drehfeder, AusschaltfederTorsion spring, opening spring
- 5252
- Erster Schenkel der DrehfederFirst leg of torsion spring
- 5353
- Ortsfester PunktStationary point
- 5454
- Zweiter Schenkel der DrehfederSecond leg of the torsion spring
- 5555
- Federkraftspring force
- 5656
- Erste TeilkraftFirst part force
- 5757
- Zweite TeilkraftSecond partial force
- 5858
- Führungszapfenspigot
- 4949
- Vorsprunghead Start
Claims (3)
- Electrical switch, with a main current path, in which a main contact point (10) with a movable contact piece (13), which is fastened on a contact lever arm (12, 15) mounted pivotably on a fixed rotary spindle (14), and a stationary contact piece (11) is located, with an auxiliary current path having an isolating contact point (37) with a movable contact piece (36), which is fastened on a contact carrier (34) mounted pivotably on a fixed rotary spindle (33), and a stationary contact piece (38), with the current being commutated from the main current path onto the auxiliary current path in the event of a short circuit, with a switching mechanism, which is mounted with its individual components in a printed circuit board holder and by means of which the main contact point (10) and the isolating contact point (37) can be actuated, and with a toggle switch (24), which can be used to actuate the switching mechanism and the main and isolating contact point, the contact lever (12) being a twin-armed lever, whose arm lying opposite the movable contact piece (13) is acted upon by a control lever (17), whose other end is connected in articulated fashion via a pivot pin (18) to a first intermediate lever (19), and the other end of the first intermediate lever (19) being connected in articulated fashion to a second intermediate lever (21), which is articulated on the toggle switch (24), and the link pin (20), with which the two intermediate levers (19, 21) are connected to one another, being guided in a slot (26) of a rotatably mounted latching lever (27), and a release lever (30) being provided, with which the latching lever (27) forms a latching point (31), characterized in that a tripping spring (51) acts on the pivot pin (18), which connects the control lever (17) and the first intermediate lever (19), and, via the pivot pin (18), loads the control lever (17) in the direction of tripping of the main contact point (10), the introduction of force of the tripping spring (51) onto the pivot pin (18) being designed in such a way that a first, relatively small partial force (56) acts on the latching point (31), and a second, relatively great partial force (57) acts on the control lever (17).
- Electrical switch according to Claim 1, characterized in that the tripping spring (51) is a torsion spring, whose first leg (52) is supported on a fixed point (53) and whose second leg (54) is used for the introduction of force onto the pivot pin (18).
- Electrical switch according to Claim 2, characterized in that the torsion spring (51) is wound around the fixed rotary spindle (33) of the contact carrier (34) of the isolating contact point (37).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL07819344T PL2097918T3 (en) | 2006-11-03 | 2007-10-26 | Electrical switch |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006051807A DE102006051807B8 (en) | 2006-11-03 | 2006-11-03 | Electric switch |
PCT/EP2007/009296 WO2008052702A1 (en) | 2006-11-03 | 2007-10-26 | Electrical switch |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2097918A1 EP2097918A1 (en) | 2009-09-09 |
EP2097918B1 true EP2097918B1 (en) | 2011-04-06 |
Family
ID=38950777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07819344A Active EP2097918B1 (en) | 2006-11-03 | 2007-10-26 | Electrical switch |
Country Status (8)
Country | Link |
---|---|
US (1) | US20100072049A1 (en) |
EP (1) | EP2097918B1 (en) |
CN (1) | CN101681747B (en) |
AT (1) | ATE504935T1 (en) |
CA (1) | CA2667500A1 (en) |
DE (2) | DE102006051807B8 (en) |
PL (1) | PL2097918T3 (en) |
WO (1) | WO2008052702A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008017472A1 (en) | 2007-04-28 | 2008-11-06 | Abb Ag | Service switching device |
JP2011181469A (en) * | 2010-03-04 | 2011-09-15 | Ricoh Co Ltd | Switch operation device, interlock mechanism with the same, and image forming device |
CN201918333U (en) | 2010-05-12 | 2011-08-03 | Abb股份公司 | Switch installation device |
DE102010025531A1 (en) | 2010-06-29 | 2011-12-29 | Abb Ag | Electrical mounting switch device, has insulation material shell provided with concave hole in area of connection piece, and connection finger-shaped piece connected with connection piece by passing through another hole |
CN102568922B (en) * | 2010-12-30 | 2015-02-11 | 中国船舶重工集团公司第七一三研究所 | Load signal generating mechanism |
CN102254755B (en) * | 2011-06-28 | 2013-10-16 | 法泰电器(江苏)股份有限公司 | Operation mechanism of circuit breaker |
US9403591B2 (en) * | 2013-07-23 | 2016-08-02 | Mason Electric Co. | Landing gear control system |
CN107293457A (en) * | 2016-04-12 | 2017-10-24 | 上海良信电器股份有限公司 | A kind of contact system structure-improved of breaker |
AU2022399749A1 (en) * | 2021-12-02 | 2023-11-09 | Chint Low Voltage Electrical Technology Co., Ltd. | Circuit breaker |
CN116230458A (en) * | 2021-12-02 | 2023-06-06 | 上海正泰智能科技有限公司 | Operating mechanism and switching device |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4404073A1 (en) * | 1994-02-09 | 1995-08-10 | Kloeckner Moeller Gmbh | Low-voltage circuit breaker with relative auxiliary switch |
DE19526592C2 (en) * | 1995-07-21 | 1999-04-15 | Abb Patent Gmbh | Electrical switch, in particular circuit breaker |
DE19526591B4 (en) * | 1995-07-21 | 2005-04-21 | Abb Patent Gmbh | Electric switch |
US5713459A (en) * | 1996-03-26 | 1998-02-03 | Eaton Corporation | Roller latching and release mechanism for electrical switching apparatus |
ATE315832T1 (en) * | 1998-11-19 | 2006-02-15 | Sace Spa | THERMOMAGNETIC CIRCUIT SWITCH |
DE10003191A1 (en) * | 2000-01-25 | 2001-07-26 | Zemag Gmbh | Jaw crusher for coarse crushing of hard rock, with extra fixed jaw, two fixed jaws being opposite each other in V pattern |
US6479774B1 (en) * | 2000-03-17 | 2002-11-12 | General Electric Company | High energy closing mechanism for circuit breakers |
DE10133878B4 (en) * | 2001-07-12 | 2004-07-08 | Siemens Ag | Switchgear with a key switch |
DE10222360A1 (en) * | 2003-02-07 | 2003-12-04 | Hager Electro Gmbh | Line and/or equipment excess current/short circuit protection switch has first separation point, magnet mechanism and slower movement mechanism in series in main current path from input to output |
JP3972782B2 (en) * | 2002-09-26 | 2007-09-05 | 富士電機機器制御株式会社 | Circuit breaker |
DE102004055564B4 (en) * | 2004-11-18 | 2022-05-05 | Abb Ag | Electrical installation switching device |
EP1995754B1 (en) * | 2007-05-23 | 2013-09-04 | Abb Ag | Electric installation switching device |
-
2006
- 2006-11-03 DE DE102006051807A patent/DE102006051807B8/en not_active Expired - Fee Related
-
2007
- 2007-10-26 AT AT07819344T patent/ATE504935T1/en active
- 2007-10-26 US US12/513,407 patent/US20100072049A1/en not_active Abandoned
- 2007-10-26 EP EP07819344A patent/EP2097918B1/en active Active
- 2007-10-26 CA CA002667500A patent/CA2667500A1/en not_active Abandoned
- 2007-10-26 PL PL07819344T patent/PL2097918T3/en unknown
- 2007-10-26 WO PCT/EP2007/009296 patent/WO2008052702A1/en active Application Filing
- 2007-10-26 DE DE502007006903T patent/DE502007006903D1/en active Active
- 2007-10-26 CN CN2007800408019A patent/CN101681747B/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE102006051807B3 (en) | 2008-03-27 |
DE502007006903D1 (en) | 2011-05-19 |
PL2097918T3 (en) | 2011-09-30 |
CA2667500A1 (en) | 2008-05-08 |
EP2097918A1 (en) | 2009-09-09 |
CN101681747A (en) | 2010-03-24 |
DE102006051807B8 (en) | 2008-06-26 |
ATE504935T1 (en) | 2011-04-15 |
CN101681747B (en) | 2012-07-18 |
WO2008052702A1 (en) | 2008-05-08 |
US20100072049A1 (en) | 2010-03-25 |
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