EP1110230B1 - Switch - Google Patents

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Publication number
EP1110230B1
EP1110230B1 EP99944361A EP99944361A EP1110230B1 EP 1110230 B1 EP1110230 B1 EP 1110230B1 EP 99944361 A EP99944361 A EP 99944361A EP 99944361 A EP99944361 A EP 99944361A EP 1110230 B1 EP1110230 B1 EP 1110230B1
Authority
EP
European Patent Office
Prior art keywords
switch
lever
toggle joint
accordance
operating handle
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.)
Expired - Lifetime
Application number
EP99944361A
Other languages
German (de)
French (fr)
Other versions
EP1110230A1 (en
Inventor
Christian Thamm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AEG Niederspannungstechnik GmbH and Co KG
Original Assignee
AEG Niederspannungstechnik GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by AEG Niederspannungstechnik GmbH and Co KG filed Critical AEG Niederspannungstechnik GmbH and Co KG
Publication of EP1110230A1 publication Critical patent/EP1110230A1/en
Application granted granted Critical
Publication of EP1110230B1 publication Critical patent/EP1110230B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H71/50—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2041—Rotating bridge
    • 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
    • H01H71/522—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism
    • H01H71/525—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism comprising a toggle between cradle and contact arm and mechanism spring acting between handle and toggle knee
    • 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
    • H01H71/62—Manual reset mechanisms which may be also used for manual release with means for preventing resetting while abnormal condition persists, e.g. loose handle arrangement
    • H01H71/64—Manual reset mechanisms which may be also used for manual release with means for preventing resetting while abnormal condition persists, e.g. loose handle arrangement incorporating toggle linkage

Definitions

  • the invention relates to a switch according to the preamble of claim 1, e.g. known from DE-A-2508220.
  • the invention relates in particular a low-voltage switch with a blocking element that the Transfer of an operating handle in the Switch-off position prevented when the contacts of the switch are blocked.
  • This Low-voltage switch has one by one Actuating handle movable drive lever, which means a drive spring acts on a knee joint on one End is connected to a contact carrier shaft and at the other End is supported on a ratchet lever with which the Overcurrent tripping of the low voltage switch is controlled.
  • the knee joint has a knee joint tab that is the same Level as the locking tab is arranged, such that one end the locking tab rotatably mounted on the lock housing and the other end is coupled to the drive lever. there can the drive lever with the coupled locking tab only follow welded contacts until the locking tab on the knee joint tab comes into contact.
  • the object of the invention is a low voltage switch to make available, in the event of a Welding the contacts the transfer of the Actuating lever in the off position even safer can be prevented.
  • a movable contact 1 is the Low voltage switch rotatable on axis 2 one Switch shaft 3 mounted.
  • the selector shaft 3 is itself in one Polbahn housing not shown stored.
  • the selector shaft 3 has two diametrically opposite satellite axes 4 and 5, when the selector shaft 3 rotates about the axis 2 be rotated.
  • Axis 4 is the point of attack one Knee joint 6, the other end by means of a Knee joint axis 7 with a second, in the form of a Triangular elements 8 trained knee joint articulated connected is.
  • the triangular element 8 is at a second corner by means of an axis 9 with a ratchet lever 10, which for Overflow release of the key switch serves and rotates on a fixedly positioned axis 11 is articulated connected.
  • the knee joint tabs 6 are made Reasons for symmetry on both sides of the triangular element 8 and provided between the pawl lever 10 and connected by means of axis 7.
  • a in Fig. 2 Detail of drive lever 13 consists of two plates, which are in the respective levels extend from two side plates 15 of the drive housing and with their lower sections 13a shown in FIG corresponding bearing sections 14 of the side plates 15 of the Drive housing are articulated.
  • the present Exemplary embodiment consists of the drive lever 13 single U-shaped plate, on the Connecting section a bolt 16 and one from the Actuating handle 17 led out of the drive housing are attached.
  • a triggering device is shown in FIG. 1 with the reference number 19 characterized. With this release device Triggering the ratchet lever 10 in a known Controlled way.
  • a locking lever 20 arranged with its one end on the satellite axis 5 of the selector shaft 3 and with its other end to a fixed pin 21 is articulated.
  • the pin 21 is on the side plate 15 attached and formed in a locking lever 20 Elongated hole 22 out.
  • a projection 23 which is formed with a Drive lever 13 formed receiving portion 24 in Intervention can be brought. Thanks to this construction, the in 7 shows a safe separation of the contact 1 indexing end operating position OFF of the operating handle 17 prevented in the following way:
  • the operating handle 17 is first so far in the Moved clockwise until sections 24 and 23 in Intervention.
  • this torque because of the relatively short distance between axes 2 and 5 very small is that caused by micro-welding Isolation resistance at contact 1 on operating handle 17 clearly noticeable. Accordingly, a person is that Tried to turn the switch off, immediately able to recognize that the operating handle 17 is not in the End operating position can be brought OFF.
  • contact 1 If contact 1 is not welded, it takes the locking lever 20 in the position shown in Figure 5, so that the operating handle 17 together with the drive lever 13 unhindered in the final operating position shown in Figure 7 OFF can pass. This is the way an am Drive lever 13 attached pin 25 with the ratchet lever 10 engages and pushes the latter clockwise so far down through until the pawl lever 10 is in a locked position occupies in the trigger device 19.
  • a switch is connected to an actuator handle 17 Actuated drive lever 13 equipped by means of a Drive spring 18 acts on a knee joint 6, 7, 8, the one Active connection between a control shaft 3 for actuation a contact 1 and a ratchet lever 10 for controlling the Overcurrent release.
  • the switch also has one with the drive lever 13 cooperating locking lever 20 which the Transfer of the operating handle 17 in the Switch-off position prevented when contact 1 is blocked, whereby the locking lever 20 by a rotation of the shift shaft 3 at Closing contact 1 automatically in its locked position can be brought in relation to the drive lever.

Landscapes

  • Mechanisms For Operating Contacts (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Breakers (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Description

Die Erfindung betrifft einen Schalter gemäß dem Oberbegriff des Patentanspruchs 1, wie z.B. aus der DE-A-2508220 bekannt. Die Erfindung betrifft insbesondere einen Niederspannungsschalter mit einem Sperrelement, das die Überführung eines Betätigungshandgriffes in die Ausschaltstellung verhindert, wenn die Kontakte des Schalters blockiert sind.The invention relates to a switch according to the preamble of claim 1, e.g. known from DE-A-2508220. The invention relates in particular a low-voltage switch with a blocking element that the Transfer of an operating handle in the Switch-off position prevented when the contacts of the switch are blocked.

Aus der Druckschrift DE 38 02 184 C2 ist ein Niederspannungsschalter mit einem als Sperrlasche ausgebildeten Sperrelement bekannt. Dieser Niederspannungsschalter hat im einzelnen einen durch einen Betätigungshandgriff bewegbaren Antriebshebel, der mittels einer Antriebsfeder auf ein Kniegelenk einwirkt, das an einem Ende mit einer Kontaktträgerwelle verbunden ist und am anderen Ende sich an einem Klinkenhebel abstützt, mit dem die Überstromauslösung des Niderspannungsschalters gesteuert wird. Das Kniegelenk hat eine Kniegelenklasche, die in gleicher Ebene wie die Sperrlasche angeordnet ist, derart, daß ein Ende der Sperrlasche ortsfest drehbar am Schloßgehäuse gelagert und das andere Ende mit dem Antriebshebel gekoppelt ist. Dabei kann der Antriebshebel mit der gekoppelten Sperrlasche bei verschweißten Kontakten nur so weit nachgeführt werden, bis die Sperrlasche an der Kniegelenklasche zur Anlage kommt. Bei einer weiteren Bewegung des Betätigungshandgriffs in Ausschaltrichtung erzeugt die Sperrlasche ein Moment auf die Kniegelenklasche in Ausschaltrichtung, so daß der Betätigungshandgriff sich nur dann in Ausschaltrichtung bewegen läßt, wenn dabei die Kontaktverschweißung aufbricht. Somit wird durch diese Konstruktion die Verschiebung des Betätigungshandgriffs in die Betriebsstellung AUS bei verschweißten Kontakten mechanisch verhindert, so daß eine den Niderspannungsschalter kontrollierende Person diesen Zustand leicht erkennen kann, um entsprechende Reparaturmaßnahmen vorzunehmen. From the document DE 38 02 184 C2 is a Low voltage switch with a locking tab trained locking element known. This Low-voltage switch has one by one Actuating handle movable drive lever, which means a drive spring acts on a knee joint on one End is connected to a contact carrier shaft and at the other End is supported on a ratchet lever with which the Overcurrent tripping of the low voltage switch is controlled. The knee joint has a knee joint tab that is the same Level as the locking tab is arranged, such that one end the locking tab rotatably mounted on the lock housing and the other end is coupled to the drive lever. there can the drive lever with the coupled locking tab only follow welded contacts until the locking tab on the knee joint tab comes into contact. at a further movement of the operating handle in Switch-off direction generates the locking tab a moment on the Knee joint strap in the direction of switching off, so that the The operating handle is only in the switch-off direction can move if the contact weld breaks open. Thus, the construction of the Operating handle in the OFF operating position welded contacts mechanically prevented, so that the Low voltage switch person controlling this condition can easily identify appropriate repair measures make.

Aufgabe der Erfindung ist es, einen Niederspannungsschalter zur Verfügung zu stellen, bei dem für den Fall einer Verschweißung der Kontakte die Überführung des Betätigungshebels in die Ausschaltstellung noch sicherer verhindert werden kann.The object of the invention is a low voltage switch to make available, in the event of a Welding the contacts the transfer of the Actuating lever in the off position even safer can be prevented.

Diese Aufgabe wird durch die Kombination der im Patentanspruch 1 definierten Merkmale gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved by the combination of the claims 1 defined characteristics solved. Advantageous further training the invention are specified in the subclaims.

Die Erfindung wird im folgenden anhand eines Ausführungsbeispiels unter Bezugnahme auf Zeichnungen näher erläutert.The invention is based on a Exemplary embodiment with reference to drawings explained.

Es zeigen:

  • Fig. 1: eine Schnittansicht eines Niederspannungsschalters gemäß dem Ausführungsbeispiel im eingeschalteten Zustand, in dem der Betätigungshebel sich in der Betriebsstellung EIN befindet;
  • Fig. 2: eine vergrößerte perspektivische Ansicht einer inneren Baugruppe des in Fig. 1 dargestellten Niederspannungsschalters, bei der zwischen einer am Betätigungshebel befestigten Achse und einer Kniegelenkachse Feder gespannt sind, um zugleich die Kniegelenklaschen und einen Klinkenhebel zu betätigen;
  • Fig. 3: eine vergrößerte perspektivische Ansicht der in Fig. 2 dargestellten Baugruppe, die zusätzlich die Montage der Seitenplatten des Antriebsgehäuses und der mit dem Klinkenhebel zusammenwirkenden Auslöseeinrichtung zeigt;
  • Fig. 4: eine perspektivische Ansicht des in Fig. 1 dargestellten Niederspannungsschalters;
  • Fig. 5: eine Schnittansicht des Niederspannungsschalters im ausgeschalteten Zustand, in dem der Betätigungshebel eine Betriebsstellung einnimmt;
  • Fig. 6: eine Schnittansicht des Niederspannungsschalters in seiner Übergangsbetriebsstellung, in der wegen Kontaktverschweißung noch ein eingeschalteter Zustand gegeben und eine Verschiebung des Betätigungshebels in die Betriebsstellung AUS verhindert ist;
  • Fig. 7: eine Schnittansicht des Niederspannungsschalters im ausgeschalteten Zustand, in dem der Betätigungshebel die Betriebsstellung AUS ungehindert einnehmen kann.
    • Show it:
  • 1 shows a sectional view of a low-voltage switch according to the exemplary embodiment in the switched-on state, in which the actuating lever is in the ON operating position;
  • FIG. 2 is an enlarged perspective view of an inner assembly of the low-voltage switch shown in FIG. 1, in which springs are tensioned between an axis attached to the actuating lever and a knee joint axis, in order to simultaneously actuate the knee joint tabs and a ratchet lever;
  • 3 shows an enlarged perspective view of the assembly shown in FIG. 2, which additionally shows the assembly of the side plates of the drive housing and of the release device interacting with the latch lever;
  • Fig. 4 is a perspective view of the low voltage switch shown in Fig. 1;
  • 5 shows a sectional view of the low-voltage switch in the switched-off state, in which the actuating lever assumes an operating position;
  • 6 shows a sectional view of the low-voltage switch in its transitional operating position, in which, due to contact welding, a switched-on state is still present and displacement of the actuating lever into the OFF operating position is prevented;
  • 7: a sectional view of the low-voltage switch in the switched-off state, in which the actuating lever can assume the operating position OFF unhindered.

    • Wie die Figur 1 zeigt, ist ein beweglicher Kontakt 1 des Niederspannungsschalters drehbar auf der Achse 2 einer Schaltwelle 3 gelagert. Die Schaltwelle 3 ist selbst in einem nicht dargestellten Polbahngehäuse gelagert. Die Schaltwelle 3 hat zwei diametral gegenüberliegende Satellit-Achsen 4 und 5, die bei einer Drehung der Schaltwelle 3 um die Achse 2 mitgedreht werden. Die Achse 4 ist Angriffspunkt einer Kniegelenklasche 6, die mit ihrem anderen Ende mittels einer Kniegelenkachse 7 mit einer zweiten, in Form eines Dreieckselements 8 ausgebildeten Kniegelenklasche gelenkig verbunden ist. Das Dreieckselement 8 ist an einer zweiten Ecke mittels einer Achse 9 mit einem Klinkenhebel 10, der zur Überströmauslösung des Schaltschlosses dient und drehbar auf einer fest positionierten Achse 11 gelagert ist, gelenkig verbunden.As FIG. 1 shows, a movable contact 1 is the Low voltage switch rotatable on axis 2 one Switch shaft 3 mounted. The selector shaft 3 is itself in one Polbahn housing not shown stored. The selector shaft 3 has two diametrically opposite satellite axes 4 and 5, when the selector shaft 3 rotates about the axis 2 be rotated. Axis 4 is the point of attack one Knee joint 6, the other end by means of a Knee joint axis 7 with a second, in the form of a Triangular elements 8 trained knee joint articulated connected is. The triangular element 8 is at a second corner by means of an axis 9 with a ratchet lever 10, which for Overflow release of the key switch serves and rotates on a fixedly positioned axis 11 is articulated connected.

    Wie den Figuren 2 und 3 im einzelnen zu entnehmen ist, besteht das Dreieckelement 8 aus zwei sich zueinander parallel erstreckenden spiegelgleichen Platten, zwischen denen der Klinkenhebel 10 aufgenommen und auf der Gelenkachse 9, die die Platten fest miteinander verbindet, gelagert ist. Im Bereich der dritten Ecke des Dreieckelements 8 sind die Platten mittels eines Stiftes 12 verbunden, der mit dem Klinkenhebel 10 in Anlage bringbar ist, um die Bewegung des Dreieckelements 8 zu begrenzen.As can be seen in Figures 2 and 3 in detail, there is the triangular element 8 consists of two mutually parallel extending mirror-like plates, between which the Pawl lever 10 added and on the hinge axis 9, which the Plates firmly connected, is stored. In the area The third corner of the triangular element 8 are the plates connected by means of a pin 12 which is connected to the ratchet lever 10 can be brought into contact with the movement of the triangular element 8 limit.

    Wie bereits oben erwähnt, sind die Kniegelenklaschen 6 aus Symmetriegründen jeweils beidseitig vom Dreieckelement 8 und dem dazwischen angeordneten Klinkenhebel 10 vorgesehen und mittels der Achse 7 miteinander verbunden. Ein in Fig. 2 ausschnittweise räumlich dargestellter Antriebshebel 13 besteht aus zwei Platten, die sich in den jeweiligen Ebenen von zwei Seitenplatten 15 des Antriebsgehäuses erstrecken und mit ihren in Fig. 4 gezeigten unteren Abschnitten 13a auf entsprechenden Lagerabschnitten 14 der Seitenplatten 15 des Antriebsgehäuses gelenkig abgestützt sind. Im vorliegenden Ausführungsbeispiel besteht der Antriebshebel 13 aus einer einzigen U-förmig gebogenen Platte, an deren Verbindungsabschnitt ein Bolzen 16 und ein aus dem Antriebsgehäuse herausgeführten Betätigungshandgriff 17 angebracht sind. Zwischen dem als Achse 7 funktionierenden Kniegelenkbolzen und dem Bolzen 16 des Antriebshebels 13 sind beidseitig von dem Dreieckelement 8 je eine Antriebsfeder 18 angeordnet. Die Gehäuse-Seitenplatten 15 und die unteren Abschnitten 13a des Antriebshebels 13 sind ebenfalls beidseitig des Dreieckselements 8 angeordnet.As already mentioned above, the knee joint tabs 6 are made Reasons for symmetry on both sides of the triangular element 8 and provided between the pawl lever 10 and connected by means of axis 7. A in Fig. 2 Detail of drive lever 13 consists of two plates, which are in the respective levels extend from two side plates 15 of the drive housing and with their lower sections 13a shown in FIG corresponding bearing sections 14 of the side plates 15 of the Drive housing are articulated. In the present Exemplary embodiment consists of the drive lever 13 single U-shaped plate, on the Connecting section a bolt 16 and one from the Actuating handle 17 led out of the drive housing are attached. Between the one that functions as axis 7 Knee joint bolt and the bolt 16 of the drive lever 13 are A drive spring 18 on each side of the triangular element 8 arranged. The housing side plates 15 and the lower ones Sections 13a of the drive lever 13 are also arranged on both sides of the triangular element 8.

    Eine Auslöseeinrichtung ist in Fig. 1 mit dem Bezugszeichen 19 gekennzeichnet. Mit dieser Auslöseeinrichtung wird die Auslösung des Klinkenhebels 10 in einer an sich bekannten Weise gesteuert.A triggering device is shown in FIG. 1 with the reference number 19 characterized. With this release device Triggering the ratchet lever 10 in a known Controlled way.

    In der in den Figuren 1 und 4 gezeigten Betriebsstellung EIN befindet sich der Betätigungshandgriff 17 in einer nach links gekippten Stellung, so daß die Kraftwirklinie der Feder 18 links von der Achse 9 verläuft. Da in der Betriebsstellung EIN der Klinkenhebel 10 infolge eines Eingriffs mit der Auslöseeinrichtung 19 eine entgegen des Uhrzeigersinns nach oben gerichtete Bewegung infolge der über das Dreieckelement 8 und der Achse 9 einwirkenden Federkraft nicht ausführen kann, verlagert sich die Federkraft zu einer im Uhrzeigersinn gerichteten Drehbewegung des Dreieckelements 8 um die Achse 9. Dabei wird die Achse 7 dazu gezwungen, die die Achsen 9 und 4 verbindende Linie zu überqueren, welches bei einem - wie oben erläutert - blockierten Klinkenhebel 10 dazu führt, daß die Kniegelenklasche 6 auf die Schaltwelle 3 in Schließrichtung des beweglichen Kontakts 1 einwirkt.In the operating position shown in FIGS. 1 and 4 is the operating handle 17 in a to the left tilted position so that the line of action of the spring 18th runs to the left of axis 9. Because in the operating position ON the pawl lever 10 due to an engagement with the Trigger device 19 counterclockwise upward movement due to the triangular element 8 and cannot execute the spring force acting on the axis 9, the spring force shifts to a clockwise directional rotary movement of the triangular element 8 about the axis 9. Axis 7 is forced to do so, axes 9 and 4 cross connecting line, which at one - as above explained - blocked pawl lever 10 causes the Knee joint 6 on the selector shaft 3 in the closing direction of the movable contact 1 acts.

    Die Fig. 5 zeigt die Betriebsstellung AUSGELÖST. Der Niederspannungsschalter gelangt in diese Betriebsstellung, nachdem der Klinkenhebel 10 von der Auslöseeinrichtung 19 freigegeben worden ist. In dieser Betriebsstellung nimmt der Betätigungshandgriff 17 die in Fig. 5 gezeigte Position ein. Infolge der in dieser Stellung auf die Achse 7 ausgeübten Federkraft wird das Dreieckelement 8 zusammen mit dem daran angelenkten Klinkenhebel 10 und der Kniegelenklasche 6 nach oben gezogen, welches zu einer Drehung der Schaltwelle 3 und somit zu einer Trennung des beweglichen Kontakts 1 führt.5 shows the TRIGGERED operating position. The Low voltage switch comes into this operating position, after the pawl lever 10 from the release device 19 has been released. In this operating position, the Operating handle 17 in the position shown in Fig. 5. As a result of the force exerted on axis 7 in this position The triangular element 8 is spring-loaded together with it hinged latch lever 10 and the knee joint 6 after pulled up, which leads to a rotation of the control shaft 3 and thus leads to a separation of the movable contact 1.

    Die während des Betriebes möglichen Verschweißungen können dazu führen, daß eine Trennung des Kontakts 1 unter alleiniger Einwirkung der von der Feder 18 ausgeübten Spannkraft nicht möglich ist. Ein solcher Zustand bei einer geöffneten Auslöseeinrichtung 19 ist in der Fig. 6 gezeigt. Es ist also in diesem Zustand anhand der Position des Betätigungshandgriffs 17 nicht erkennbar, ob der Kontakt gelöst ist oder nicht. Um den tatsächlichen Betriebszustand des Kontaktes 1 allein anhand der Position des Betätigungshandgriffs 17 feststellen zu können, weist die Schalterkonstruktion einige Besonderheiten, die im folgenden erläutert werden.The possible welds during operation can cause a separation of the contact 1 under sole Influence of the tension force exerted by the spring 18 is not is possible. Such a condition when open Tripping device 19 is shown in FIG. 6. So it is in this state based on the position of the Operating handle 17 not recognizable whether the contact is solved or not. To the actual operating status of contact 1 based solely on the position of the To be able to determine the operating handle 17 has the Switch construction some peculiarities, the following are explained.

    Wie bereits der Darstellung der Figuren 1 und 4 zu entnehmen ist, ist auf der Außenseite einer oder beider Seitenplatten 15 des Antriebsgehäuses ein Sperrhebel 20 angeordnet, der mit seinem einen Ende an der Satelliten-Achse 5 der Schaltwelle 3 und mit seinem anderen Ende an einem positionsfesten Stift 21 angelenkt ist. Der Stift 21 ist an der Seitenplatte 15 befestigt und in einem in dem Sperrhebel 20 ausgebildeten Langloch 22 geführt. Am langlochseitigen Ende des Sperrhebels 20 ist ein Vorsprung 23 ausgebildet, der mit einem am Antriebshebel 13 ausgebildeten Aufnahmeabschnitt 24 in Eingriff bringbar ist. Dank dieser Konstruktion wird die in Fig. 7 gezeigte eine sichere Trennung des Kontaktes 1 indizierende Endbetriebsstellung AUS des Betätigungshandgriffs 17 auf folgender Weise verhindert:As can already be seen from the illustration in FIGS. 1 and 4 is on the outside of one or both side plates 15 the drive housing, a locking lever 20 arranged with its one end on the satellite axis 5 of the selector shaft 3 and with its other end to a fixed pin 21 is articulated. The pin 21 is on the side plate 15 attached and formed in a locking lever 20 Elongated hole 22 out. At the slot end of the locking lever 20 is a projection 23 which is formed with a Drive lever 13 formed receiving portion 24 in Intervention can be brought. Thanks to this construction, the in 7 shows a safe separation of the contact 1 indexing end operating position OFF of the operating handle 17 prevented in the following way:

    Der Betätigungshandgriff 17 wird zunächst soweit in den Uhrzeigersinn verschoben, bis die Abschnitte 24 und 23 in Eingriff gelangen. Beim Versuch den Betätigungshandgriff 17 weiter in diese Richtung zu verschieben, wird demzufolge eine Druckkraft direkt vom Betätigungshandgriff 17 über den Antriebshebel 13 auf den Sperrhebel 20 ausgeübt und somit über die Achse 5 ein auf die Schaltwelle 3 im Uhrzeigersinn wirkendes Drehmoment erzeugt. Weil dieses Drehmoment wegen der relativ kurzen Distanz zwischen den Achsen 2 und 5 sehr gering ist, ist der durch Mikroverschweißungen bedingte Trennwiderstand am Kontakt 1 am Betätigungshandgriff 17 deutlich spürbar. Dementsprechend ist eine Person, die versucht, den Schalter auszuschalten, sofort in der Lage zu erkennen, daß der Betätigungshandgriff 17 nicht in die Endbetriebsposition AUS bringbar ist.The operating handle 17 is first so far in the Moved clockwise until sections 24 and 23 in Intervention. When trying the operating handle 17 Moving further in this direction is therefore a Pushing force directly from the operating handle 17 via the Drive lever 13 exerted on the locking lever 20 and thus over the axis 5 on the selector shaft 3 clockwise acting torque generated. Because of this torque because of the relatively short distance between axes 2 and 5 very small is that caused by micro-welding Isolation resistance at contact 1 on operating handle 17 clearly noticeable. Accordingly, a person is that Tried to turn the switch off, immediately able to recognize that the operating handle 17 is not in the End operating position can be brought OFF.

    Liegt eine Verschweißung des Kontakts 1 nicht vor, so nimmt der Sperrhebel 20 die in der Figur 5 gezeigte Position ein, so daß der Betätigungshandgriff 17 zusammen mit dem Antriebshebel 13 ungehindert in die in Figur 7 gezeigte Endbetriebsposition AUS übergehen kann. Auf diesen Weg gelangt ein am Antriebshebel 13 angebrachter Stift 25 mit dem Klinkenhebel 10 in Eingriff und drückt den letzteren soweit im Uhrzeigersinn nach unten durch, bis der Klinkenhebel 10 eine Sperrposition in der Auslöseeinrichtung 19 einnimmt.If contact 1 is not welded, it takes the locking lever 20 in the position shown in Figure 5, so that the operating handle 17 together with the drive lever 13 unhindered in the final operating position shown in Figure 7 OFF can pass. This is the way an am Drive lever 13 attached pin 25 with the ratchet lever 10 engages and pushes the latter clockwise so far down through until the pawl lever 10 is in a locked position occupies in the trigger device 19.

    Ein Schalter ist mit einem durch einen Betätigungshandgriff 17 betätigbaren Antriebshebel 13 ausgestattet, der mittels einer Antriebsfeder 18 auf ein Kniegelenk 6, 7, 8 einwirkt, das eine Wirkverbindung zwischen einer Schaltwelle 3 zur Betätigung eines Kontakts 1 und einem Klinkenhebel 10 zur Steuerung der Überstromauslösung herstellt. Der Schalter hat auch einen mit dem Antriebshebel 13 zusammenwirkende Sperrhebel 20, der die Überführung des Betätigungshandgriffes 17 in die Ausschaltstellung bei blockiertem Kontakt 1 verhindert, wobei der Sperrhebel 20 durch eine Drehung der Schaltwelle 3 beim Schließen des Kontakts 1 automatisch in seiner Sperrposition in bezug auf den Antriebshebel bringbar ist.A switch is connected to an actuator handle 17 Actuated drive lever 13 equipped by means of a Drive spring 18 acts on a knee joint 6, 7, 8, the one Active connection between a control shaft 3 for actuation a contact 1 and a ratchet lever 10 for controlling the Overcurrent release. The switch also has one with the drive lever 13 cooperating locking lever 20 which the Transfer of the operating handle 17 in the Switch-off position prevented when contact 1 is blocked, whereby the locking lever 20 by a rotation of the shift shaft 3 at Closing contact 1 automatically in its locked position can be brought in relation to the drive lever.

    Claims (7)

    1. Switch with a driving lever (13), operable by means of an operating handle (17), which acts by means of a driving spring (18) on a toggle joint (6, 7, 8), which establishes an active connection between a control shaft (3) for operating a contact (1) and a ratchet lever for controlling the excess current trip, and with a locking lever (20) interacting with the driving lever (13) which, through a movement of the control shaft (3) causing the closing of the contact (1), can automatically be brought into a blocking position in relation to the driving lever in order to prevent the operating handle (17) from being moved into the switch-off position when the contact (1) is blocked,
      characterised in that one end of the locking lever (2) is connected in an articulated manner with the control shaft (3).
    2. Switch in accordance with claim 1, characterised in that the other end of the locking lever (20), featuring a guide element (22), is supported in a sliding manner on a bearing (21) which is arranged in a fixed position.
    3. Switch in accordance with claim 2, characterised in that the bearing (21) is formed as a guide pin and is fixed to a side plate of the housing (15).
    4. Switch in accordance with claim 2 or 3, characterised in that the toggle joint features two toggle joint tongues (6, 8) connected with one another by means of a toggle joint axis (7), of which the first toggle joint tongue (8) is connected in an articulated manner with the ratchet lever (10) and the second toggle joint tongue (6) is hinged to a second eccentric axis (4) arranged on the control shaft (3) diametrically opposite to the first eccentric axis (5).
    5. Switch in accordance with claim 4, characterised in that the first toggle joint tongue (8) is formed of two identically-formed triangular plates extending parallel to one another which are connected by means of a pin, at least in the area of one of the corners, which serves as a hinge axis (9) for the ratchet lever (10) which is arranged between the plates.
    6. Switch in accordance with claim 1, characterised in that the driving lever (13) is formed by a plate extending on the same level as a housing side-plate (15), which features an open cut-out (24) to receive a projection (23) of the locking lever (20) and is supported in an open cut-out (14) of the housing side-plate (15) with a bearing section facing away from the operating handle (17).
    7. Switch in accordance with claim 6 and one of claims 2 and 6, characterised in that a section of the housing side-plate (15) adjacent to the operating handle (17) features a projection (15a) on which the driving lever (13) can be supported when in switched-on condition.
    EP99944361A 1998-09-11 1999-08-09 Switch Expired - Lifetime EP1110230B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    DE19841685A DE19841685C2 (en) 1998-09-11 1998-09-11 switch
    DE19841685 1998-09-11
    PCT/EP1999/005829 WO2000016358A1 (en) 1998-09-11 1999-08-09 Switch

    Publications (2)

    Publication Number Publication Date
    EP1110230A1 EP1110230A1 (en) 2001-06-27
    EP1110230B1 true EP1110230B1 (en) 2002-06-26

    Family

    ID=7880684

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP99944361A Expired - Lifetime EP1110230B1 (en) 1998-09-11 1999-08-09 Switch

    Country Status (8)

    Country Link
    EP (1) EP1110230B1 (en)
    JP (1) JP4321965B2 (en)
    CN (1) CN1208799C (en)
    AU (1) AU5732599A (en)
    DE (1) DE19841685C2 (en)
    HU (1) HU223108B1 (en)
    TW (1) TW493190B (en)
    WO (1) WO2000016358A1 (en)

    Families Citing this family (9)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE10129498C1 (en) * 2001-06-19 2003-03-06 Moeller Gmbh Multi-pole electrical switching device with switch lock
    FR2887071B1 (en) * 2005-06-14 2007-08-31 Schneider Electric Ind Sas DEVICE FOR OPERATING AN ELECTRICAL DEVICE SWITCH WITH ROTATION BLOCKING MEANS.
    DE102006012125B3 (en) * 2006-03-09 2007-11-15 Siemens Ag Electrical switchgear, has coupling unit and multi-coupling rod, where mechanical connections between unit and rod enable movement of unit independent of movement of rod, and drive strand for operating movable contact
    US7843290B2 (en) * 2007-08-10 2010-11-30 Ls Industrial Systems Co., Ltd. Molded case circuit breaker with contact on mechanism
    KR101015316B1 (en) * 2008-12-31 2011-02-15 엘에스산전 주식회사 Switching mechanism capable of indicating contacts status and mold cased circuit breaker having the same mechanism
    JP5333289B2 (en) * 2010-02-25 2013-11-06 三菱電機株式会社 Circuit breaker
    DE102011081102A1 (en) * 2011-08-17 2013-02-21 Siemens Aktiengesellschaft Electric switch
    KR101326987B1 (en) * 2011-12-16 2013-11-13 현대중공업 주식회사 Tripping device and a circuit braker having the same
    WO2018114739A1 (en) * 2016-12-20 2018-06-28 Eaton Industries (Austria) Gmbh Circuit breaker with tripping functionality

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    FR2262859B1 (en) * 1974-03-01 1977-09-23 Merlin Gerin
    DE2808609C3 (en) * 1978-02-28 1980-09-18 Siemens Ag, 1000 Berlin Und 8000 Muenchen Low voltage toggle switch
    DE3033213C2 (en) * 1980-08-29 1982-10-21 Siemens AG, 1000 Berlin und 8000 München Low voltage circuit breaker with a locking lever
    DE8023509U1 (en) * 1980-08-29 1980-11-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Low voltage circuit breaker for locking lever
    DE3802184A1 (en) * 1988-01-26 1989-08-03 Licentia Gmbh LOW VOLTAGE SWITCH WITH LOCKING LOBS
    ZA898764B (en) * 1988-12-08 1990-08-29 Westinghouse Electric Corp Electrical circuit breaker handle locking apparatus
    DE4227213C2 (en) * 1992-08-17 1995-08-31 Kloeckner Moeller Gmbh Switch lock for a circuit breaker
    DE9401785U1 (en) * 1994-02-03 1995-07-20 Klöckner-Moeller GmbH, 53115 Bonn Key switch with a locking mechanism

    Also Published As

    Publication number Publication date
    HU223108B1 (en) 2004-03-29
    JP4321965B2 (en) 2009-08-26
    TW493190B (en) 2002-07-01
    CN1208799C (en) 2005-06-29
    AU5732599A (en) 2000-04-03
    DE19841685A1 (en) 2000-03-30
    HUP0103736A2 (en) 2002-05-29
    EP1110230A1 (en) 2001-06-27
    WO2000016358A1 (en) 2000-03-23
    JP2002525796A (en) 2002-08-13
    CN1319241A (en) 2001-10-24
    DE19841685C2 (en) 2002-10-31

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