EP3002772B1 - Circuit breaker with a blocking device for a reliable shift lever position indicator - Google Patents
Circuit breaker with a blocking device for a reliable shift lever position indicator Download PDFInfo
- Publication number
- EP3002772B1 EP3002772B1 EP14187299.4A EP14187299A EP3002772B1 EP 3002772 B1 EP3002772 B1 EP 3002772B1 EP 14187299 A EP14187299 A EP 14187299A EP 3002772 B1 EP3002772 B1 EP 3002772B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switching
- lever
- circuit breaker
- drive shaft
- transmission mechanism
- 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.)
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- 230000000903 blocking effect Effects 0.000 title claims description 25
- 230000007246 mechanism Effects 0.000 claims description 34
- 230000005540 biological transmission Effects 0.000 claims description 29
- 230000013011 mating Effects 0.000 claims description 18
- 239000004020 conductor Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000000254 damaging effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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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
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/501—Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker
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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
- H01H9/20—Interlocking, locking, or latching mechanisms
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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
- H01H71/10—Operating or release mechanisms
- H01H71/1009—Interconnected mechanisms
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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
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/505—Latching devices between operating and release mechanism
-
- 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
- H01H71/56—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel
Definitions
- the invention relates to a circuit breaker switching device with a locking device for a reliable switch position display with an actuating mechanism having an actuating element and is operatively connected via a first transmission mechanism with a switch lock, which operates a shift lever via a second transmission mechanism, and with a contact system, which a fixed having positioned switching piece with contacts, which is arranged opposite to a movable contact piece with contacts, which is guided in a contact slide, wherein the shift lever is in operative connection with the movable contact piece.
- Switching devices serve, among other things, the safe switching off in the event of a short circuit and thereby protect consumer installations.
- electrical or mechanical switching units are suitable for the operational manual switching of consumers as well as for the safe disconnection of a system from the mains during maintenance work or when changing the system. Electrical switching units are often operated electromagnetically.
- switching units are high-quality electrical switching devices with integrated protection for motors, lines, transformers and generators. They are used more closely at workstations with a lower switching frequency. Such switching units are suitable in addition to the short circuit protection for overload protection.
- Circuit breakers have two separate release mechanisms for overload and short-circuit protection. Both triggers are connected in series. Short-circuit protection is provided by an electromagnetic release that acts almost instantaneously. In the event of a short circuit, the electromagnetic release unlocks without delay a circuit breaker of the circuit breaker. A switching armature disconnects the contactor before the short-circuit current can reach its maximum value.
- switching units have a contact slide unit with a contact slide and a movable contact piece.
- the movable contact piece also has electrical contacts.
- switching units have first contacts to a power line. In an on state, the electrical contacts of the movable contact piece contact the fixed contacts of the switching unit. In the event of a short circuit, the electrical contacts of the movable contact piece are released from the fixed contacts, so that the flow of current is interrupted. Here, the movable contact is released from the fixed contacts.
- circuit breakers In addition to their protective functions as overload and short-circuit releases, as already mentioned above, circuit breakers also fulfill the normative switching on and off of motors. To prove this function, the circuit-breakers must be able to switch on ten times the rated motor current according to the product standard. To be able to guarantee this limit load, it is necessary for the circuit breaker to double-break the three current paths in the form of a respective movable bridge with two movable contact points and two fixed contact points, almost simultaneously and in a jumping function closes.
- the contact slide is accelerated during the switch-on and continues to move even after the impact of the bridges on the Festschalt consultancyen until it is reflected at a stop.
- the reflection and the resulting kinetic energy of the contact slide reopen the contact system. This can lead to welds with a simultaneously increased current in this current path.
- the actuator can not be transferred to a lockable, switched-off position. Accordingly, there is the technical requirement to block the switch position display when welded main contacts and display this switch position safely and reliably.
- the EP 1 401 004 A2 describes an electrical switching device, in particular a circuit breaker and / or a motor protection switch, with at least one contact point, with at least one movable contact piece, which is actuated by an actuating element, in particular a rotary handle, via a switching mechanism, wherein between the switching mechanism and the at least one movable contact piece a transmission lever is provided so that upon actuation of the rotary handle, which can reach at least one movable contact piece in the off position or vice versa in closed position.
- the transmission lever actuates an intermediate lever, which is L-shaped.
- the intermediate lever is pivotable about an axis disposed at the free end of the first leg axis, wherein at this a cam surface is provided, which cooperates with the transmission lever.
- the object of the present invention is to provide a circuit breaker with a locking device for reliable switching position indication in welded main contacts.
- a circuit breaker with a locking device for a reliable switch position display with an actuating mechanism having an actuating element and is operatively connected via a first transmission mechanism with a switch lock, which via a second transmission mechanism a Operating lever, and with a contact system having a fixedly positioned contact piece with contacts, which is arranged opposite to a movable contact piece with contacts, which is guided in a contact slide, wherein the shift lever is in operative connection with the movable contact piece.
- the invention is characterized in that the first transmission mechanism has a drive shaft, which is coupled both to the switch lock, as well as to a separate locking device through which a switch position for a contact system with welded contacts can be transferred.
- the essence of the invention is that on the drive shaft, a rotatably mounted part is plugged in the form of a Drehsperrriegels.
- This rotary locking bolt has a nose, which serves as catching tines and is in operative connection with a catching surface which is positioned on a component, preferably a counter-wheel, of the first transmission mechanism.
- the angular position of the anti-rotation bolt is not controlled by the cam lock kinematics including the drive shaft.
- the control takes place outside of the switching mechanism via a direct operative connection with a locking lever to a motion transmission part in the form of an articulation lever, which is closer to the main contacts seen in the direction of movement.
- the locking lever is therefore on the one hand connected to the articulation lever and on the other hand receives a pin of the Drehsperrriegels in its bearing point.
- each lateral movement of the articulation lever is converted directly into a rotation angle of the Drehsperrriegels.
- the main contacts are welded, thus sets a rotational angle position on the rotary locking bar, in which the catching surface meets the tines, so that the switched-off switching position is blocked, as a result of which the switching device is no longer lockable.
- the turn-lock and the drive shaft each have correspondingly formed support areas on, which support each other under torque or force.
- the drive shaft is coupled via a plugged onto the drive shaft rotary locking bolt to the blocking device.
- the blocking device is formed of turn-lock and locking lever, which accesses via a bearing on a journal of the Drehsperrriegels and thus is in operative connection with the rotary locking bolt.
- the blocking device comprises a locking lever which is coupled at a first end via a bearing on the rotary locking bolt and which is at its second end in operative connection with an articulation lever which acts on the shift lever.
- the second transmission mechanism essentially forms the articulation lever, which actuates the shift lever, which is in operative connection with the contact system of fixedly positioned and movable contact piece.
- the locking lever is the connecting link between the turnstile and the lever.
- a further concept may consist in that the rotary locking bolt has a nose serving as a catching surface. This serving as a catch surface nose engages with a tine, which is positioned on the first transmission mechanism in the form of a mating gear, into each other. This engagement of the catch surface with the tine forms the switching blockade, by which the switching device is ultimately no longer lockable, but indicates a switching position state indicating a welded contact system.
- a rotary locking bolt is attached as part of the blocking device on the drive shaft.
- the blocking device which essentially comprises the rotary locking bolt and the locking lever, enables a separate and secure transmission of the switching position state in the welded contact system.
- a further concept may consist in that the first transmission mechanism has a mating wheel coupled to the actuating element, which has a catching surface.
- the interaction of safety tines on the rotary locking bolt and catch surface on the mating gear represents the switching blockage, which means that the switching device is not lockable.
- An inventive continuation of this concept may consist in that the catch surface is formed on the mating gear as a cylinder shell portion section surface.
- the design of the catch surface as a cylinder jacket part section surface has the advantage that this surface is adapted to the curvature of the mating gear, so that the risk is minimized that the tines could break off.
- the circuit breaker according to the invention with a locking device for reliable switching position display in welded contact system has a manually operable actuating element which is in operative connection with a counter-wheel which is coupled to a drive shaft.
- the surface normal of the mating gear is substantially orthogonal to the axis of rotation of the drive shaft or the surface of the mating gear is positioned substantially parallel to the axis of rotation of the drive shaft.
- the drive shaft is preferably cylindrical and merges at one end into a circular segment partial section contour. About this circular segment partial section contour, the drive shaft is coupled to an indexing rocker of a switching mechanism, in which engages this circular segment part section contour in a recess in the toothed rocker.
- a first tuck which as a support surface for a fishing surface, preferably is formed in the form of a cylinder shell portion section surface is formed on the mating gear.
- the application of the first tipping on the drive shaft with the catch surface on the mating wheel takes place in the switched-off state.
- a rotary locking bolt On the drive shaft, a rotary locking bolt is attached, which is cylindrical.
- a second catch tine is formed, on which the catching surface meets the mating wheel when the contact system is welded.
- the second tine on Drehsperrriegel blocks the catch surface on Ge Vietnameserad so that it can not be further implemented to the first tine on the drive shaft and the proper switched-off state in which the contact pieces of the contact system are spaced apart and the switching device is shut off is not achieved.
- a pin is arranged on the rotary locking bolt, which is coupled to a bearing of a locking lever.
- the locking lever is operatively connected to an articulation lever, which is coupled to a shift lever, via which the contact system of fixedly positioned contact piece and movable contact piece, which is guided in a contact slide, is actuated.
- the locking lever serves as a blocking device and prevents the switched-off switching position can be achieved.
- the articulation lever serves as a transmission mechanism of the contact system to the actuator, which serves as a switching position status indicator.
- the switching device according to the invention with a blocking device for a reliable switching position display in welded contact system is characterized in that the blocking device is guided separately next to the switchgear kinematics and a separate component in the form of a Drehsperrriegels, which is plugged onto the drive shaft and not integrally connected to the drive shaft is, is being implemented.
- the winding position which occupies the turn-lock on the drive shaft, is directly and thus past the switchgear kinematics, controllable.
- the separately running blocking device is no tolerance dependence between the components.
- the blocking position is defined mechanically precisely.
- Fig. 1 shows a portion of a circuit breaker according to the invention with a locking device for a reliable Switch position indication with welded contact system.
- the switching device has a manually operable actuating element 1, which is in operative connection with a counter-wheel 2, which is coupled to a drive shaft 3.
- the surface normal of the counter-wheel 2 is substantially orthogonal to the axis of rotation of the drive shaft 3 or the surface of the counter-wheel 2 is positioned substantially parallel to the axis of rotation of the drive shaft 3.
- the drive shaft 3 is preferably cylindrical and merges at one end into a circular segment partial section contour 4.
- the drive shaft 3 is coupled to a toothed rocker of a switching mechanism, in which engages this circular segment part section contour 4 in a recess in the toothed rocker.
- a first tuck 5 which is formed as a support surface for a catch surface 6, which is preferably formed in the form of a cylinder shell portion section surface on the mating. The application of the first tine 5 on the drive shaft 3 with the catch surface 6 on the mating gear 2 takes place in the switched-off state.
- a rotary locking bolt 7 is attached, which is cylindrical.
- a second tine 8 is formed on which the catch surface 6 meets the mating gear 2 when the contact system is welded.
- the second tine 8 on the rotary locking bolt 7 blocks the catch surface 6 on the mating gear 2, so that it can not be further implemented to the first tine 5 on the drive shaft 3 and the properly switched off circuit state in which the contact pieces of the contact system are spaced apart and the switching device shut off is not reached.
- a pin 9 is arranged on the rotary locking bolt 7, which is coupled to a bearing 10 of a locking lever 11 which forms the blocking device together with the rotary locking bolt 7.
- the locking lever 11 is operatively connected to an articulation lever 12 which is coupled to a shift lever 13, via which the contact system 14 of fixedly positioned switching piece and movable contact piece 15, which is guided in a contact slide 16, is actuated.
- the locking lever 11 is part of the blocking device and prevents the switched-off switching position can be achieved.
- the articulation lever 12 serves as a transmission mechanism between the contact system 14 and the actuating element 1, which serves as a switching position status indicator.
- Fig. 2 shows the relevant components for the blocking device in an exploded view.
- Fig. 2 shows essentially the bipartite of drive shaft 3 and turn-lock latch 7, which is plugged onto the drive shaft 3.
- the Drehsperrriegels 7 With proper positioning of the Drehsperrriegels 7 on the drive shaft 3 engages a pin 17 of the combined component of actuator 1 and mating gear 2 in a recess 18 of the cylindrically shaped Drehsperrriegels 7.
- the pin 9 of the Drehsperrriegels. 7 the outside of the drive shaft 3, so that it can engage in the bearing 10 of the locking lever 11.
- Fig. 3 shows the turn-lock latch 7, which forms together with the locking lever 11, the blocking device for a switching position state in welded contact system.
- the rotary locking bolt 7 is formed substantially cylindrical, which protrudes from the cylindrical basic shape of the Drehsperrriegels 7 of the second tine 8, which in the present welded contact system by sliding the catch surface 6 on the mating gear 2, which is preferably designed as a cylinder shell part section surface prevented.
- Below the second catch tine 8, the pin 9 is arranged, which is coupled to the bearing 10 of the locking lever 11.
- Fig. 4 the triggering mechanism of the blocking device is shown in a welded contact system. It beats the catching surface 6 of the counter-wheel 2 to the second catch tines 8 of the Drehsperrriegels 7 at. The catching surface 6 of the counter-wheel can thus not slide through to the first catching tines 5 of the drive shaft 3.
- the actuating element 1 is firmly stuck in a half position between the switched-off switching position and the switched-on switching position, as a result of which the actuating element also serves as a switching position status indicator.
- Fig. 5 the transmission chain from the actuator 1 to the contact system 14 is shown in the off state.
- the movable contact piece 15 is spaced from the fixedly positioned switching piece.
- Fig. 6 shows the transmission chain from the actuator 1 to the contact system 14 in the on state.
- the movable contact piece 15 rests on the fixedly positioned contact piece.
- the actuator 1 is rotated by 90 ° to the actuator in the off state.
- Fig. 7 shows the transmission chain from the actuator 1 to the contact system 14 in welded contact system 14. Even with a welded contact system 14, the movable contact piece 15 is located on the fixed-positioned contact piece. The actuating element 1 is in a welded contact system in an intermediate position between the off state and the on state.
- the circuit breaker according to the invention with a locking device for a reliable switching position display in welded contact system is characterized in that the blocking device is guided separately next to the switchgear kinematics and a separate component in the form of a Drehsperrriegels, which is plugged onto the drive shaft and not integrally connected to the drive shaft is, is being implemented.
- the angular position of the rotary lock on the drive shaft is direct and thus controllable past the switchgear kinematics. Due to the separately executed blocking device, there is no more tolerance dependence between the components.
- the blocking position is defined mechanically precisely.
Landscapes
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Mechanical Control Devices (AREA)
- Mechanisms For Operating Contacts (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
Description
Die Erfindung betrifft einen Leistungsschalter Schaltgerät mit einer Blockiervorrichtung für eine zuverlässige Schaltstellungsanzeige mit einer Betätigungsmechanik, die ein Betätigungselement aufweist und über eine erste Übertragungsmechanik mit einem Schaltschloss in Wirkverbindung steht, welches über eine zweite Übertragungsmechanik einen Schalthebel bedient, und mit einem Kontaktsystem, welches ein fest positioniertes Schaltstück mit Kontakten aufweist, welches gegenüberliegend zu einem beweglichen Schaltstück mit Kontakten angeordnet ist, welches in einem Kontaktschieber geführt ist, wobei der Schalthebel in Wirkverbindung mit dem beweglichen Schaltstück steht.The invention relates to a circuit breaker switching device with a locking device for a reliable switch position display with an actuating mechanism having an actuating element and is operatively connected via a first transmission mechanism with a switch lock, which operates a shift lever via a second transmission mechanism, and with a contact system, which a fixed having positioned switching piece with contacts, which is arranged opposite to a movable contact piece with contacts, which is guided in a contact slide, wherein the shift lever is in operative connection with the movable contact piece.
Schaltgeräte, insbesondere Leistungsschalter, dienen unter Anderem dem sicheren Abschalten bei einem Kurzschluss und schützen dadurch Verbraucheranlagen. Ferner eignen sich elektrische oder mechanische Schalteinheiten für das betriebsmäßige manuelle Schalten von Verbrauchern sowie zur sicheren Trennung einer Anlage vom Stromnetz bei Wartungsarbeiten oder bei Änderungen an der Anlage. Elektrische Schalteinheiten werden häufig elektromagnetisch betrieben.Switching devices, in particular circuit breakers, serve, among other things, the safe switching off in the event of a short circuit and thereby protect consumer installations. Furthermore, electrical or mechanical switching units are suitable for the operational manual switching of consumers as well as for the safe disconnection of a system from the mains during maintenance work or when changing the system. Electrical switching units are often operated electromagnetically.
Das heißt, derartige Schalteinheiten sind technisch hochwertige elektrische Schaltgeräte mit integriertem Schutz für Motoren, Leitungen, Transformatoren und Generatoren. Näheren Einsatz finden sie an Funktionsstellen mit geringerer Schalthäufigkeit. Derartige Schalteinheiten sind neben dem Kurzschlussschutz auch für den Überlastschutz geeignet.That is, such switching units are high-quality electrical switching devices with integrated protection for motors, lines, transformers and generators. They are used more closely at workstations with a lower switching frequency. Such switching units are suitable in addition to the short circuit protection for overload protection.
Im Fall eines Kurzschlusses schaltet eine elektrische Schalteinheit eine elektrische Anlage sicher ab. Somit bietet diese einen Sicherungsschutz vor Überlastung. Jeder Leiter, durch den Strom fließt, erwärmt sich mehr oder weniger stark. Die Erwärmung hängt dabei vom Verhältnis der Stromstärke zum Stromleiterquerschnitt ab, der so genannten Stromdichte. Die Stromdichte darf nicht zu groß werden, da sonst durch zu hohe Erwärmung die Leiterisolationen verschmoren, wodurch möglicherweise ein Brand ausgelöst werden kann. Um elektrische Anlagen gegen diese schädigenden Auswirkungen zu schützen, werden Schalteinheiten als Überstrom-Schutzeinrichtungen verwendet.In the case of a short circuit, an electrical switching unit switches off an electrical system safely. Thus, this provides a protection against overload. Every conductor through which electricity flows heats up more or less. The Heating depends on the ratio of the current intensity to the current conductor cross-section, the so-called current density. The current density must not be too high, otherwise the overheating will spatter the conductor insulation, possibly causing a fire. To protect electrical equipment against these damaging effects, switching units are used as overcurrent protective devices.
Leistungsschalter weisen zwei voneinander getrennt wirkende Auslösemechanismen für den Überlast- und Kurzschlussschutz auf. Beide Auslöser sind in Reihe geschaltet. Den Schutz beim Kurzschluss übernimmt ein zeitlich nahezu unverzögert wirkender elektromagnetischer Auslöser. Beim Kurzschluss entklinkt der elektromagnetische Auslöser unverzögert ein Schaltschloss des Leistungsschalters. Ein Schaltanker trennt das Schaltstück, ehe der Kurzschlussstrom seinen Höchstwert erreichen kann.Circuit breakers have two separate release mechanisms for overload and short-circuit protection. Both triggers are connected in series. Short-circuit protection is provided by an electromagnetic release that acts almost instantaneously. In the event of a short circuit, the electromagnetic release unlocks without delay a circuit breaker of the circuit breaker. A switching armature disconnects the contactor before the short-circuit current can reach its maximum value.
Bekannte Schalteinheiten weisen eine Kontaktschiebereinheit mit einem Kontaktschieber und einem beweglichen Schaltstück auf. Das bewegliche Schaltstück weist ferner elektrische Kontakte auf. Ferner weisen derartige Schalteinheiten erste Kontakte zu einer Stromleitung auf. In einem eingeschalteten Zustand kontaktieren die elektrischen Kontakte des beweglichen Schaltstücks die festen Kontakte der Schalteinheit. Im Kurzschlussfall werden die elektrischen Kontakte des beweglichen Schaltstücks von den festen Kontakten gelöst, so dass der Stromfluss unterbrochen wird. Hierbei wird das bewegliche Schaltstück von den festen Kontakten gelöst.Known switching units have a contact slide unit with a contact slide and a movable contact piece. The movable contact piece also has electrical contacts. Furthermore, such switching units have first contacts to a power line. In an on state, the electrical contacts of the movable contact piece contact the fixed contacts of the switching unit. In the event of a short circuit, the electrical contacts of the movable contact piece are released from the fixed contacts, so that the flow of current is interrupted. Here, the movable contact is released from the fixed contacts.
Leistungsschalter erfüllen neben ihren Schutzfunktionen als Überlast- und Kurzschlussauslöser, wie oben schon erwähnt, auch das normative Ein- und Ausschalten von Motoren. Zum Nachweis dieser Funktion müssen die Leistungsschalter nach der Produktnorm den zehnfachen Motornennstrom einschalten können. Um diese Grenzbelastung gewährleisten zu können, ist es notwendig, dass der Leistungsschalter die Doppelunterbrechung der drei Strombahnen in Form jeweils einer beweglichen Brücke mit zwei beweglichen Kontaktstellen und zwei festen Kontaktstellen, nahezu gleichzeitig und in einer Sprungfunktion schließt.In addition to their protective functions as overload and short-circuit releases, as already mentioned above, circuit breakers also fulfill the normative switching on and off of motors. To prove this function, the circuit-breakers must be able to switch on ten times the rated motor current according to the product standard. To be able to guarantee this limit load, it is necessary for the circuit breaker to double-break the three current paths in the form of a respective movable bridge with two movable contact points and two fixed contact points, almost simultaneously and in a jumping function closes.
Zur Realisierung dieser Funktion wird über eine handbetätigte Mechanik in Form eines Betätigungselements, eines Schaltschlosses und einer Betätigungskette, der Kontaktapparat aus Kontaktschieber und einer beweglichen Brücke freigegeben. Die Freigabe erfolgt durch eine so genannte Schnelleinschaltung. Dabei werden die drei Kontaktsysteme durch eine Mechanik erst dann freigegeben, nachdem das Schaltschloss bereits nahezu aber dennoch noch nicht vollständig eingeschaltet wurde. Nun bestimmt der Federspeicher in Form einer Kontaktlastfeder die Kinematik des Kontaktsystems beim Einschalten.To realize this function is released via a hand-operated mechanism in the form of an actuating element, a switching mechanism and an actuating chain, the contact mechanism of contact slide and a movable bridge. The release takes place by a so-called quick turn-on. The three contact systems are released by a mechanism only after the switch lock is almost but not yet fully turned on. Now, the spring-loaded in the form of a contact load spring determines the kinematics of the contact system when switching.
Der Kontaktschieber wird während des Einschaltvorganges beschleunigt und bewegt sich auch nach dem Auftreffen der Brücken auf den Festschaltstücken weiter, bis er an einem Anschlag reflektiert wird. Durch die Reflexion und der daraus resultierenden kinetischen Energie des Kontaktschiebers kommt es zu einem erneuten Öffnen des Kontaktsystems. Dies kann bei einem gleichzeitig erhöhten Strom in dieser Strombahn zu Verschweißungen führen. Für den Fall, dass die Hauptkontakte verschweißt sind, besteht die Anforderung, dass das Betätigungselement nicht in eine absperrbare, ausgeschaltete Position überführt werden kann. Demnach besteht die technische Anforderung, die Schaltstellungsanzeige bei verschweißten Hauptkontakten zu blockieren und diese Schaltstellung sicher und zuverlässig anzuzeigen.The contact slide is accelerated during the switch-on and continues to move even after the impact of the bridges on the Festschaltstücken until it is reflected at a stop. The reflection and the resulting kinetic energy of the contact slide reopen the contact system. This can lead to welds with a simultaneously increased current in this current path. In the event that the main contacts are welded, there is a requirement that the actuator can not be transferred to a lockable, switched-off position. Accordingly, there is the technical requirement to block the switch position display when welded main contacts and display this switch position safely and reliably.
Dazu geht aus der
Die
Demgemäß besteht die Aufgabe der vorliegenden Erfindung darin, einen Leistungsschalter mit einer Blockiervorrichtung für eine zuverlässige Schaltstellungsanzeige bei verschweißten Hauptkontakten zu schaffen.Accordingly, the object of the present invention is to provide a circuit breaker with a locking device for reliable switching position indication in welded main contacts.
Diese Aufgabe wird erfindungsgemäß durch einen Leistungsschalter mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Aus- und Weiterbildungen, welche einzeln oder in Kombination miteinander eingesetzt werden können, sind der Gegenstand der abhängigen Ansprüche.This object is achieved by a circuit breaker with the features of
Erfindungsgemäß wird diese Aufgabe durch einen Leistungsschalter mit einer Blockiervorrichtung für eine zuverlässige Schaltstellungsanzeige gelöst mit einer Betätigungsmechanik, die ein Betätigungselement aufweist und über eine erste Übertragungsmechanik mit einem Schaltschloss in Wirkverbindung steht, welches über eine zweite Übertragungsmechanik einen Schalthebel bedient, und mit einem Kontaktsystem, welches ein fest positioniertes Schaltstück mit Kontakten aufweist, welches gegenüberliegend zu einem beweglichen Schaltstück mit Kontakten angeordnet ist, welches in einem Kontaktschieber geführt ist, wobei der Schalthebel in Wirkverbindung mit dem beweglichen Schaltstück steht. Die Erfindung zeichnet sich dabei dadurch aus, dass die erste Übertragungsmechanik eine Antriebswelle aufweist, die sowohl an das Schaltschloss, als auch an eine separate Blockiervorrichtung gekoppelt ist, durch welche eine Schaltstellung für ein Kontaktsystem mit verschweißten Kontakten übertragbar ist.This object is achieved by a circuit breaker with a locking device for a reliable switch position display with an actuating mechanism having an actuating element and is operatively connected via a first transmission mechanism with a switch lock, which via a second transmission mechanism a Operating lever, and with a contact system having a fixedly positioned contact piece with contacts, which is arranged opposite to a movable contact piece with contacts, which is guided in a contact slide, wherein the shift lever is in operative connection with the movable contact piece. The invention is characterized in that the first transmission mechanism has a drive shaft, which is coupled both to the switch lock, as well as to a separate locking device through which a switch position for a contact system with welded contacts can be transferred.
Der Kern der Erfindung besteht darin, dass auf der Antriebswelle ein drehbar gelagertes Teil in Form eines Drehsperrriegels aufgesteckt ist. Dieser Drehsperrriegel weist eine Nase auf, die als Fangzinken dient und in Wirkverbindung steht mit einer Fangfläche, die an einem Bauteil, vorzugsweise einem Gegenrad, der ersten Übertragungsmechanik positioniert ist. Die Winkelposition des Drehsperrriegels wird nicht über die Schaltschlosskinematik inklusive der Antriebswelle gesteuert. Die Ansteuerung erfolgt außerhalb des Schaltschlosses über eine direkte Wirkverbindung mit einem Sperrhebel zu einem Bewegungsübertragungsteil in Form eines Anlenkhebels, der in Bewegungsrichtung gesehen näher an den Hauptkontakten liegt. Der Sperrhebel ist also einerseits mit dem Anlenkhebel verbunden und nimmt andererseits einen Zapfen des Drehsperrriegels in seiner Lagerstelle auf. Somit wird jede Lateralbewegung des Anlenkhebels direkt in einen Drehwinkel des Drehsperrriegels umgesetzt. Für den Fall, dass die Hauptkontakte verschweißt sind, stellt sich demzufolge eine Drehwinkelposition am Drehsperrriegel ein, bei welcher die Fangfläche auf den Fangzinken trifft, so dass die ausgeschaltete Schaltstellungsposition blockiert ist, infolge dessen das Schaltgerät nicht mehr absperrbar ist. Um die für die Schaltblockade im ausgeschalteten Schaltstellungszustand notwendige Abstützgegenkraft gewährleisten zu können, weisen der Drehsperrriegel und die Antriebswelle jeweils entsprechend ausgebildete Abstützbereiche auf, die sich unter Drehmoment- beziehungsweise Krafteinwirkung, aneinander abstützen.The essence of the invention is that on the drive shaft, a rotatably mounted part is plugged in the form of a Drehsperrriegels. This rotary locking bolt has a nose, which serves as catching tines and is in operative connection with a catching surface which is positioned on a component, preferably a counter-wheel, of the first transmission mechanism. The angular position of the anti-rotation bolt is not controlled by the cam lock kinematics including the drive shaft. The control takes place outside of the switching mechanism via a direct operative connection with a locking lever to a motion transmission part in the form of an articulation lever, which is closer to the main contacts seen in the direction of movement. The locking lever is therefore on the one hand connected to the articulation lever and on the other hand receives a pin of the Drehsperrriegels in its bearing point. Thus, each lateral movement of the articulation lever is converted directly into a rotation angle of the Drehsperrriegels. In the event that the main contacts are welded, thus sets a rotational angle position on the rotary locking bar, in which the catching surface meets the tines, so that the switched-off switching position is blocked, as a result of which the switching device is no longer lockable. In order to ensure the Abstützgegenkraft necessary for the switching block in the switched-off switching state, the turn-lock and the drive shaft each have correspondingly formed support areas on, which support each other under torque or force.
In einer besonders vorteilhaften Ausführungsform der Erfindung kann es vorgesehen sein, dass die Antriebswelle über einen auf die Antriebswelle aufgesteckten Drehsperrriegel an die Blockiervorrichtung gekoppelt ist. Dabei ist die Blockiervorrichtung aus Drehsperrriegel und Sperrhebel ausgebildet, der über ein Lager auf einen Zapfen des Drehsperrriegels zugreift und somit in Wirkverbindung mit dem Drehsperrriegel steht.In a particularly advantageous embodiment of the invention, it can be provided that the drive shaft is coupled via a plugged onto the drive shaft rotary locking bolt to the blocking device. In this case, the blocking device is formed of turn-lock and locking lever, which accesses via a bearing on a journal of the Drehsperrriegels and thus is in operative connection with the rotary locking bolt.
In einer Fortführung dieses erfindungsgemäßen Konzepts kann es vorgesehen sein, dass die Blockiervorrichtung einen Sperrhebel aufweist, der an einem ersten Ende über ein Lager am Drehsperrriegel gekoppelt ist und der an seinem zweiten Ende in Wirkverbindung mit einem Anlenkhebel steht, der den Schalthebel beaufschlagt. Die zweite Übertragungsmechanik bildet im Wesentlichen der Anlenkhebel, der den Schalthebel betätigt, der in Wirkverbindung mit dem Kontaktsystem aus fest positioniertem und beweglichem Schaltstück steht. Der Sperrhebel stellt das Verbindungsglied zwischen Drehsperrriegel und Anlenkhebel dar.In a continuation of this inventive concept, it may be provided that the blocking device comprises a locking lever which is coupled at a first end via a bearing on the rotary locking bolt and which is at its second end in operative connection with an articulation lever which acts on the shift lever. The second transmission mechanism essentially forms the articulation lever, which actuates the shift lever, which is in operative connection with the contact system of fixedly positioned and movable contact piece. The locking lever is the connecting link between the turnstile and the lever.
In einer speziellen Ausgestaltung der Erfindung kann ein weiteres Konzept darin bestehen, dass der Drehsperrriegel eine als Fangfläche dienende Nase aufweist. Dies als Fangfläche dienende Nase greift mit einem Fangzinken, der an der ersten Übertragungsmechanik in Form eines Gegenrades positioniert ist, ineinander. Dieses Ineinandergreifen der Fangfläche mit dem Fangzinken bildet die Schaltblockade, durch welche das Schaltgerät letztendlich nicht mehr absperrbar ist, sondern einen Schaltstellungszustand anzeigt, der ein verschweißtes Kontaktsystem anzeigt.In a special embodiment of the invention, a further concept may consist in that the rotary locking bolt has a nose serving as a catching surface. This serving as a catch surface nose engages with a tine, which is positioned on the first transmission mechanism in the form of a mating gear, into each other. This engagement of the catch surface with the tine forms the switching blockade, by which the switching device is ultimately no longer lockable, but indicates a switching position state indicating a welded contact system.
In einer besonders vorteilhaften Ausgestaltung der Erfindung kann es vorgesehen sein, dass auf die Antriebswelle ein Drehsperrriegel als Teil der Blockiervorrichtung aufgesteckt ist. Die Blockiervorrichtung, die im Wesentlichen den Drehsperrriegel und den Sperrhebel umfasst, ermöglicht eine separate und sichere Übertragung des Schaltstellungszustandes bei verschweißtem Kontaktsystem.In a particularly advantageous embodiment of the invention, it may be provided that a rotary locking bolt is attached as part of the blocking device on the drive shaft. The blocking device, which essentially comprises the rotary locking bolt and the locking lever, enables a separate and secure transmission of the switching position state in the welded contact system.
In einer speziellen Ausgestaltung der Erfindung kann ein weiteres Konzept darin bestehen, dass die erste Übertragungsmechanik ein an das Betätigungselement gekoppeltes Gegenrad aufweist, welches eine Fangfläche aufweist. Das Zusammenspiel aus Fangzinken am Drehsperrriegel und Fangfläche am Gegenrad stellt die Schaltblockade dar, die dazu führt, dass das Schaltgerät nicht absperrbar ist.In a special embodiment of the invention, a further concept may consist in that the first transmission mechanism has a mating wheel coupled to the actuating element, which has a catching surface. The interaction of safety tines on the rotary locking bolt and catch surface on the mating gear represents the switching blockage, which means that the switching device is not lockable.
Eine erfindungsgemäße Weiterführung dieses Konzepts kann darin bestehen, dass die Fangfläche am Gegenrad als Zylindermantelteilabschnittsfläche ausgebildet ist. Die Ausgestaltung der Fangfläche als Zylindermantelteilabschnittsfläche bietet den Vorteil, dass diese Fläche an die Krümmung des Gegenrads angepasst ist, so dass die Gefahr minimiert wird, dass der Fangzinken abbrechen könnte.An inventive continuation of this concept may consist in that the catch surface is formed on the mating gear as a cylinder shell portion section surface. The design of the catch surface as a cylinder jacket part section surface has the advantage that this surface is adapted to the curvature of the mating gear, so that the risk is minimized that the tines could break off.
Der erfindungsgemäße Leistungsschalter mit einer Blockiervorrichtung für eine zuverlässige Schaltstellungsanzeige bei verschweißtem Kontaktsystem weist ein manuell zu betätigendes Betätigungselement auf, welches in Wirkverbindung mit einem Gegenrad steht, das an eine Antriebswelle gekoppelt ist. Die Flächennormale des Gegenrades steht dabei im Wesentlichen orthogonal zur Drehachse der Antriebswelle beziehungsweise die Fläche des Gegenrades ist im Wesentlichen parallel zur Drehachse der Antriebswelle positioniert. Die Antriebswelle ist vorzugsweise zylindrisch ausgebildet und geht an einem Ende in eine Kreissegmentteilabschnittskontur über. Über diese Kreissegmentteilabschnittskontur ist die Antriebswelle an eine Zahnwippe eines Schaltschlosses gekoppelt, in dem diese Kreissegmentteilabschnittskontur in eine Ausnehmung in der Zahnwippe eingreift. Aus der im Wesentlichen zylindrischen Grundform der Antriebswelle ragt ein erster Fangzinken heraus, der als Abstützfläche für eine Fangfläche, die vorzugsweise in Form einer Zylindermantelteilabschnittsfläche ausgeformt ist, am Gegenrad ausgebildet ist. Die Beaufschlagung des ersten Fangzinkens an der Antriebswelle mit der Fangfläche am Gegenrad erfolgt im ausgeschalteten Schaltungszustand.The circuit breaker according to the invention with a locking device for reliable switching position display in welded contact system has a manually operable actuating element which is in operative connection with a counter-wheel which is coupled to a drive shaft. The surface normal of the mating gear is substantially orthogonal to the axis of rotation of the drive shaft or the surface of the mating gear is positioned substantially parallel to the axis of rotation of the drive shaft. The drive shaft is preferably cylindrical and merges at one end into a circular segment partial section contour. About this circular segment partial section contour, the drive shaft is coupled to an indexing rocker of a switching mechanism, in which engages this circular segment part section contour in a recess in the toothed rocker. From the substantially cylindrical basic shape of the drive shaft protrudes a first tuck, which as a support surface for a fishing surface, preferably is formed in the form of a cylinder shell portion section surface is formed on the mating gear. The application of the first tipping on the drive shaft with the catch surface on the mating wheel takes place in the switched-off state.
Auf die Antriebswelle ist ein Drehsperrriegel aufgesteckt, der zylinderförmig ausgebildet ist. Am Drehsperrriegel ist ein zweiter Fangzinken angeformt, auf welchen die Fangfläche am Gegenrad trifft, wenn das Kontaktsystem verschweißt ist. Der zweite Fangzinken am Drehsperrriegel blockiert die Fangfläche am Gegegenrad, so dass diese nicht weiter zum ersten Fangzinken an der Antriebswelle umgesetzt werden kann und der ordnungsgemäße ausgeschaltete Schaltungszustand, bei welchem die Schaltstücke des Kontaktsystems voneinander beabstandet sind und das Schaltgerät absperrbar ist, nicht erreicht wird. Zudem ist am Drehsperrriegel ein Zapfen angeordnet, der mit einem Lager eines Sperrhebels gekoppelt ist.On the drive shaft, a rotary locking bolt is attached, which is cylindrical. On Drehsperrriegel a second catch tine is formed, on which the catching surface meets the mating wheel when the contact system is welded. The second tine on Drehsperrriegel blocks the catch surface on Gegegenrad so that it can not be further implemented to the first tine on the drive shaft and the proper switched-off state in which the contact pieces of the contact system are spaced apart and the switching device is shut off is not achieved. In addition, a pin is arranged on the rotary locking bolt, which is coupled to a bearing of a locking lever.
Der Sperrhebel steht in Wirkverbindung mit einem Anlenkhebel, der mit einem Schalthebel gekoppelt ist, über welchen das Kontaktsystem aus fest positioniertem Schaltstück und beweglichem Schaltstück, welches in einem Kontaktschieber geführt ist, betätigt wird. Der Sperrhebel dient dabei als Blockiervorrichtung und verhindert, dass die ausgeschaltete Schaltstellung erreicht werden kann. Der Anlenkhebel dient als Übertragungsmechanik vom Kontaktsystem zum Betätigungselement, welches als Schaltstellungszustandsanzeige dient. Das erfindungsgemäße Schaltgerät mit einer Blockiervorrichtung für eine zuverlässige Schaltstellungsanzeige bei verschweißtem Kontaktsystem zeichnet sich dadurch aus, dass die Blockiervorrichtung separat neben der Schaltschlosskinematik geführt ist und über ein separates Bauteil in Form eines Drehsperrriegels, welcher auf die Antriebswelle aufgesteckt wird und nicht einstückig mit der Antriebswelle verbunden ist, umgesetzt wird. Die Wickelposition, die der Drehsperrriegel auf der Antriebswelle einnimmt, ist direkt und somit an der Schaltschlosskinematik vorbei, ansteuerbar. Durch die separat ausgeführte Blockiervorrichtung besteht keine Toleranzabhängigkeit mehr zwischen den Bauteilen. Die Blockierposition ist mechanisch präzise definiert.The locking lever is operatively connected to an articulation lever, which is coupled to a shift lever, via which the contact system of fixedly positioned contact piece and movable contact piece, which is guided in a contact slide, is actuated. The locking lever serves as a blocking device and prevents the switched-off switching position can be achieved. The articulation lever serves as a transmission mechanism of the contact system to the actuator, which serves as a switching position status indicator. The switching device according to the invention with a blocking device for a reliable switching position display in welded contact system is characterized in that the blocking device is guided separately next to the switchgear kinematics and a separate component in the form of a Drehsperrriegels, which is plugged onto the drive shaft and not integrally connected to the drive shaft is, is being implemented. The winding position, which occupies the turn-lock on the drive shaft, is directly and thus past the switchgear kinematics, controllable. By the separately running blocking device is no tolerance dependence between the components. The blocking position is defined mechanically precisely.
Weitere Vorteile und Ausführungen der Erfindung werden nachfolgend anhand eines Ausführungsbeispiels sowie anhand der Zeichnung erläutert.Further advantages and embodiments of the invention will be explained below with reference to an embodiment and with reference to the drawing.
Dabei zeigen schematisch:
-
Fig. 1 in einer perspektivischen Darstellung einen Teilbereich eines erfindungsgemäßen Leistungsschalters mit einer Blockiervorrichtung für eine zuverlässige Schaltstellungsanzeige bei verschweißtem Kontaktsystem; -
Fig. 2 in einer Explosionsdarstellung der Teilbereich des Leistungsschalters nachFig. 1 ; -
Fig. 3 in einer perspektivischen Darstellung ein erfindungsgemäßer Drehsperrriegel für die Blockiervorrichtung; -
Fig. 4 in einer perspektivischen Darstellung die Auslösemechanik der Blockiervorrichtung bei verschweißten Kontaktsystem; -
Fig. 5 in einer perspektivischen Darstellung die Übertragungskette vom Betätigungselement zum Kontaktsystem im ausgeschalteten Zustand; -
Fig. 6 in einer perspektivischen Darstellung die Übertragungskette vom Betätigungselement zum Kontaktsystem im eingeschalteten Zustand; und -
Fig. 7 in einer perspektivischen Darstellung die Übertragungskette vom Betätigungselement zum Kontaktsystem bei verschweißtem Kontaktsystem.
-
Fig. 1 in a perspective view of a portion of a circuit breaker according to the invention with a locking device for a reliable switching position display in welded contact system; -
Fig. 2 in an exploded view of the sub-area of the circuit breaker afterFig. 1 ; -
Fig. 3 in a perspective view of an inventive rotary locking bolt for the blocking device; -
Fig. 4 in a perspective view of the release mechanism of the locking device in welded contact system; -
Fig. 5 in a perspective view of the transmission chain from the actuator to the contact system in the off state; -
Fig. 6 in a perspective view of the transmission chain from the actuator to the contact system in the on state; and -
Fig. 7 in a perspective view of the transmission chain from the actuator to the contact system in welded contact system.
Auf die Antriebswelle 3 ist ein Drehsperrriegel 7 aufgesteckt, der zylinderförmig ausgebildet ist. Am Drehsperrriegel 7 ist ein zweiter Fangzinken 8 angeformt, auf welchen die Fangfläche 6 am Gegenrad 2 trifft, wenn das Kontaktsystem verschweißt ist. Der zweite Fangzinken 8 am Drehsperrriegel 7 blockiert die Fangfläche 6 am Gegenrad 2, so dass diese nicht weiter zum ersten Fangzinken 5 an der Antriebswelle 3 umgesetzt werden kann und der ordnungsgemäß ausgeschaltete Schaltungszustand, bei welchem die Schaltstücke des Kontaktsystems voneinander beabstandet sind und das Schaltgerät absperrbar ist, nicht erreicht wird. Zudem ist am Drehsperrriegel 7 ein Zapfen 9 angeordnet, der mit einem Lager 10 eines Sperrhebels 11 gekoppelt ist, der zusammen mit dem Drehsperrriegel 7 die Blockiervorrichtung bildet.On the
Der Sperrhebel 11 steht in Wirkverbindung mit einem Anlenkhebel 12, der mit einem Schalthebel 13 gekoppelt ist, über welchen das Kontaktsystem 14 aus fest positioniertem Schaltstück und beweglichem Schaltstück 15, welches in einem Kontaktschieber 16 geführt ist, betätigt wird. Der Sperrhebel 11 ist dabei Teil der Blockiervorichtung und verhindert, dass die ausgeschaltete Schaltstellung erreicht werden kann. Der Anlenkhebel 12 dient als Übertragungsmechanik zwischen Kontaktsystem 14 und Betätigungselement 1, welches als Schaltstellungszustandsanzeige dient.The locking
In
In
Der erfindungsgemäße Leistungsschalter mit einer Blockiervorrichtung für eine zuverlässige Schaltstellungsanzeige bei verschweißtem Kontaktsystem zeichnet sich dadurch aus, dass die Blockiervorrichtung separat neben der Schaltschlosskinematik geführt ist und über ein separates Bauteil in Form eines Drehsperrriegels, welcher auf die Antriebswelle aufgesteckt wird und nicht einstückig mit der Antriebswelle verbunden ist, umgesetzt wird. Die Winkelposition, die der Drehsperrriegel auf der Antriebswelle einnimmt, ist direkt und somit an der Schaltschlosskinematik vorbei ansteuerbar. Durch die separat ausgeführte Blockiervorrichtung besteht keine Toleranzabhängigkeit mehr zwischen den Bauteilen. Die Blockierposition ist mechanisch präzise definiert.The circuit breaker according to the invention with a locking device for a reliable switching position display in welded contact system is characterized in that the blocking device is guided separately next to the switchgear kinematics and a separate component in the form of a Drehsperrriegels, which is plugged onto the drive shaft and not integrally connected to the drive shaft is, is being implemented. The angular position of the rotary lock on the drive shaft is direct and thus controllable past the switchgear kinematics. Due to the separately executed blocking device, there is no more tolerance dependence between the components. The blocking position is defined mechanically precisely.
- 11
- Betätigungselementactuator
- 22
- Gegenradcounter wheel
- 33
- Antriebswelledrive shaft
- 44
- KreissegmentteilabschnittskonturCircular segment Part Of Silhouette
- 55
- erster Fangzinkenfirst fangs
- 66
- Fangflächecatch area
- 77
- DrehsperrriegelRotary lock bolt
- 88th
- zweiter Fangzinkensecond tines
- 99
- Zapfenspigot
- 1010
- Lagercamp
- 1111
- Sperrhebellocking lever
- 1212
- AnlenkhebelFeedback lever
- 1313
- Schalthebelgear lever
- 1414
- KontaktsystemContact system
- 1515
- Schaltstückswitching piece
- 1616
- Kontaktschiebercontact slide
- 1717
- Zapfenspigot
- 1818
- Ausnehmungrecess
Claims (5)
- Circuit breaker comprising a blocking apparatus for reliable switching position indication, comprising:- an operating mechanism which has an operating element (1) and is operatively connected to a switching lock by means of a first transmission mechanism, the said switching lock operating a switching lever (13) by means of a second transmission mechanism; and- a contact system (14) which has a fixedly positioned switching piece with contacts, which fixedly positioned switching piece is arranged opposite a movable switching piece (15) with contacts, which moving switching piece is guided in a contact slide (16), wherein the switching lever (13) is operatively connected to the movable switching piece (15), characterized in that the first transmission mechanism has a drive shaft (3) which is coupled both to the switching lock and also to a separate blocking apparatus by means of which a switching position for a contact arrangement with welded contacts can be transmitted, wherein a rotary locking bar as part of the blocking apparatus is mounted onto the drive shaft (3), and wherein the blocking apparatus has a locking lever (11) which is coupled to the rotary locking bar (7) at a first end by means of a bearing (10) and which is operatively connected to a articulation lever (12), which acts on the switching lever (13), at a second end.
- Circuit breaker according to Claim 1, characterized in that the rotary locking bar (7) has a second catching prong (8).
- Circuit breaker according to either of Claims 1 and 2, characterized in that the rotary locking bar (7) has a pin (9) which engages into the bearing (10) of the locking lever (11).
- Circuit breaker according to one of Claims 1 to 3, characterized in that the first transmission mechanism has a mating gear (2) which is coupled to the operating element (1) and which has a catching face (6).
- Circuit breaker according to Claim 4, characterized in that the catching face on the mating gear (2) is in the form of a cylindrical casing subsection face.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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EP14187299.4A EP3002772B1 (en) | 2014-10-01 | 2014-10-01 | Circuit breaker with a blocking device for a reliable shift lever position indicator |
CN201510370173.7A CN105489451B (en) | 2014-10-01 | 2015-06-29 | Switchgear with the blocking device for display switch position |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14187299.4A EP3002772B1 (en) | 2014-10-01 | 2014-10-01 | Circuit breaker with a blocking device for a reliable shift lever position indicator |
Publications (2)
Publication Number | Publication Date |
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EP3002772A1 EP3002772A1 (en) | 2016-04-06 |
EP3002772B1 true EP3002772B1 (en) | 2017-07-19 |
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EP14187299.4A Active EP3002772B1 (en) | 2014-10-01 | 2014-10-01 | Circuit breaker with a blocking device for a reliable shift lever position indicator |
Country Status (2)
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EP (1) | EP3002772B1 (en) |
CN (1) | CN105489451B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102016217396A1 (en) * | 2016-09-13 | 2018-03-15 | Siemens Aktiengesellschaft | Switching device with a device for reliable switching position indication with welded contacts |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19703962C1 (en) * | 1997-02-03 | 1998-06-10 | Siemens Ag | Circuit breaker for switching electrical circuits |
DE20214579U1 (en) * | 2002-09-20 | 2003-03-06 | ABB Patent GmbH, 68526 Ladenburg | Electrical switching device |
US6969813B1 (en) * | 2004-08-24 | 2005-11-29 | Siemens Energy & Automation, Inc. | Direct mount rotary handle operating mechanism which is suitable for isolation |
-
2014
- 2014-10-01 EP EP14187299.4A patent/EP3002772B1/en active Active
-
2015
- 2015-06-29 CN CN201510370173.7A patent/CN105489451B/en active Active
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Also Published As
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CN105489451B (en) | 2018-05-11 |
EP3002772A1 (en) | 2016-04-06 |
CN105489451A (en) | 2016-04-13 |
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