WO2000016358A1 - Switch - Google Patents
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- Publication number
- WO2000016358A1 WO2000016358A1 PCT/EP1999/005829 EP9905829W WO0016358A1 WO 2000016358 A1 WO2000016358 A1 WO 2000016358A1 EP 9905829 W EP9905829 W EP 9905829W WO 0016358 A1 WO0016358 A1 WO 0016358A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lever
- knee joint
- switch
- contact
- actuating
- 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.)
- Ceased
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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
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- 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
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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
- H01H71/52—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
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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
- H01H71/62—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 patent claim 1.
- the invention relates in particular to a low-voltage switch with a blocking element which prevents the transfer of an actuating handle into the switch-off position when the contacts of the switch are blocked.
- Low-voltage switch has in particular an operating lever that can be moved by an actuating handle, which acts on a knee joint by means of a drive spring, which is connected at one end to a contact carrier shaft and, at the other end, is supported on a ratchet lever, with which the overcurrent release of the low voltage nscsscanner is controlled .
- the knee joint has a knee: lascne, which is arranged in the same plane as the locking tab, in such a way that one end of the locking tab is rotatably mounted ar lock housing and the other end is coupled to the drive neoel.
- the locking tab With a further movement of the actuating handle in the switch-off direction, the locking tab generates a moment on the knee joint tab in the switch-off direction, so that the actuating handle can only be moved in the switch-off direction when the contact welding breaks open.
- This construction thus mechanically prevents the actuation handle from moving into the OFF operating position when the contacts are welded, so that a person checking the low-voltage switch can easily recognize this state in order to carry out corresponding repair measures.
- the object of the invention is to provide a low-voltage switch in which the transfer of the actuating lever into the switch-off position can be prevented even more reliably in the event of a welding of the contacts.
- FIG. 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;
- FIG. 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 the release device which interacts 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;
- FIG. 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 in the operating position OFF is prevented;
- a movable contact 1 of the low-voltage switch is rotatably mounted on the axis 2 of a control shaft 3.
- the selector shaft 3 is itself mounted in a pole track housing, not shown.
- the selector shaft 3 has two diametrically opposite satellite axes 4 and 5, which are rotated about the axis 2 when the selector shaft 3 rotates.
- the axis 4 is the point of application of a knee joint plate 6, which is articulated at its other end by means of a knee joint axis 7 to a second knee joint plate designed in the form of a triangular element 8.
- the triangular element 8 is articulated at a second corner by means of an axis 9 to a ratchet lever 10, which is used for overcurrent release of the switch lock and is rotatably mounted on a fixedly positioned axis 11.
- the triangular element 8 consists of two mutually parallel mirror-like plates, between which the latch lever 10 is received and mounted on the hinge axis 9, which firmly connects the plates together.
- the plates are connected by means of a pin 12 which is connected to the ratchet lever 10 can be brought into contact to limit the movement of the triangular element 8.
- a drive lever 13 shown in detail in FIG. 2 consists of two plates which extend in the respective planes from two side plates 15 of the drive housing and are supported in an articulated manner with their lower sections 13a shown in FIG. 4 on corresponding bearing sections 14 of the side plates 15 of the drive housing are.
- the drive lever 13 consists of a single U-shaped plate, on the connecting section of which a bolt 16 and an actuating handle 17 which is led out of the drive housing are attached.
- a drive spring 18 is arranged on each side of the triangular element 8 between the knee joint bolt functioning as axis 7 and the bolt 16 of the drive lever 13.
- the housing side plates 15 and the lower sections 13a of the drive lever 13 are also arranged on both sides of the triangular element 8.
- a triggering device is identified in FIG. 1 by reference number 19. With this release device, the release of the ratchet lever 10 is controlled in a manner known per se.
- the actuating handle 17 In the operating position ON shown in FIGS. 1 and 4, the actuating handle 17 is in a position tilted to the left, so that the force line of action of the spring 18 runs to the left of the axis 9. Since, in the ON operating position, the pawl lever 10 cannot perform a counterclockwise upward movement as a result of an engagement with the triggering device 19 as a result of the spring force acting via the triangular element 8 and the axis 9, the spring force shifts to a clockwise direction Directed rotary movement of the triangular element 8 about the axis 9. The axis 7 is forced to cross the line connecting the axes 9 and 4, which leads to a - as explained above - blocked latch lever 10 that the knee joint 6 on the selector shaft 3 acts in the closing direction of the movable contact 1.
- Fig. 5 shows the operating position LOST.
- the low-voltage switch comes into this operating position after the latch lever 10 has been released by the release device 19.
- the actuating handle 17 assumes the position shown in FIG. 5.
- the triangular element 8 together with the pawl lever 10 and the knee joint plate 6 articulated thereon is pulled upwards, which leads to a rotation of the control shaft 3 and thus to a separation of the movable contact 1.
- a locking lever 20 is arranged on the outside of one or both rare plates 15 of the anti-friction housing, which has one end on the satellite axis 5 of the selector shaft 3 and the other end on one Fixed pin 21 is articulated.
- the pin 21 is attached to the side plate 15 and in a formed in the locking lever 20 Elongated hole 22 out.
- a projection 23 is formed, which can be brought into engagement with a receiving section 24 formed on the drive lever 13. Thanks to this construction, the safe disconnection of the contact 1 indicating the final operating position OFF of the actuating handle 17 shown in FIG. 7 is prevented in the following way:
- the operating handle 17 is first shifted clockwise until the sections 24 and 23 come into engagement.
- a compressive force is consequently exerted directly by the operating handle 17 via the drive lever 13 on the locking lever 20 and thus a torque acting on the selector shaft 3 in the clockwise direction is generated via the axis 5.
- this torque is very small due to the relatively short distance between axes 2 and 5, the separation resistance at contact 1 on actuating handle 17 caused by micro-welding is clearly noticeable. Accordingly, a person who tries to turn off the switch is immediately able to recognize that the operating handle 17 cannot be brought into the end operating position OFF.
- the locking lever 20 assumes the position shown in FIG. 5, so that the actuating handle 17 together with the drive lever 13 can pass into the end operating position OFF shown in FIG. 7 without hindrance.
- a pin 25 attached to the drive lever 13 engages with the pawl lever 10 and pushes the latter downwards clockwise until the pawl lever 10 assumes a blocking position in the release device 19.
- a switch is equipped with a drive lever 13 which can be actuated by an actuating handle 17 and which acts by means of a drive spring 18 on a knee joint 6, 7, 8 which provides an operative connection between a control shaft 3 for actuation a contact 1 and a latch lever 10 for controlling the overcurrent release.
- the switch also has a with "the drive lever 13 cooperating locking lever 20 which prevents the transfer of the operating handle 17 to the open position in case of blocked contact 1, wherein the locking lever 20 automatically by rotation of the control shaft 3 during the closing of the contact 1 in its locking position with respect can be brought 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)
Abstract
Description
SCHALTER SWITCH
Die Erfindung betrifft einen Schalter gemäß dem Oberbegriff des Patentaqnspruchs 1. Die Erfindung betrifft insbesondere einen Niederspannungsschalter mit einem Sperrelement, das die Überführung eines Betatigungshandgriffes in die Ausschaltstellung verhindert, wenn αie Kontakte des Schalters blockiert sind.The invention relates to a switch according to the preamble of patent claim 1. The invention relates in particular to a low-voltage switch with a blocking element which prevents the transfer of an actuating handle into the switch-off position when the contacts of the switch are blocked.
Aus der Druckschrift DE 38 02 184 C2 ist e n Niederspannungsschalter mit einer a-s Sperrlasche ausgebildeten Sperrelement bekannt. DieserFrom the document DE 38 02 184 C2, a low-voltage switch with an a-s locking tab designed locking element is known. This
Niederspannungsschalter hat in einzelnen einen durch einen Betatigungshandgriff bewegbarer A—rieoshebel , der mittels einer Antriebsfeder auf ein Kniegelenk einwirkt, das an einem Ende mit einer Kontakttragerwelle vercunden ist und am anderen Ende sich an einem Klinkenhebel abstutzt, mit dem die uoerstromauslosung des Niderspann nσsscnalters gesteuert wird. Das Kniegelenk hat eine Knιege_en:lascne, die in gleicher Ebene wie die Sperrlasche angeordnet ist, derart, daß ein Ende der Sperrlasche ortsfest drehbar ar Schloßgehause gelagert und das andere Ende mit dem AntrieDsneoel gekoppelt ist. Dabei kann der Antriebshebel mit der geκoppelten Sperrlasche bei verschweißten Kontakten nur so weit nacngefuhrt werden, bis die Sperrlasche an der Kniegelenklasche zur Anlage kommt. Bei einer weiteren Bewegung des Betatigungshandgriffs in Ausschaltrichtung erzeugt die Sperrlasche ein Moment auf die Kniegelenklasche in Ausschaltrichtung, so daß der Betatigungshandgriff sich nur oann in Ausschaltrichtung bewegen laßt, wenn dabei die Kontaktverschweißung aufbricht. Somit wird durch diese Konstruktion die Verschiebung des Betatigungshandgriffs 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.Low-voltage switch has in particular an operating lever that can be moved by an actuating handle, which acts on a knee joint by means of a drive spring, which is connected at one end to a contact carrier shaft and, at the other end, is supported on a ratchet lever, with which the overcurrent release of the low voltage nscsscanner is controlled . The knee joint has a knee: lascne, which is arranged in the same plane as the locking tab, in such a way that one end of the locking tab is rotatably mounted ar lock housing and the other end is coupled to the drive neoel. When the contacts are welded, the drive lever with the coupled locking tab can only be inserted until the locking tab comes into contact with the knee joint tab. With a further movement of the actuating handle in the switch-off direction, the locking tab generates a moment on the knee joint tab in the switch-off direction, so that the actuating handle can only be moved in the switch-off direction when the contact welding breaks open. This construction thus mechanically prevents the actuation handle from moving into the OFF operating position when the contacts are welded, so that a person checking the low-voltage switch can easily recognize this state in order to carry out corresponding repair measures.
ERSATZBLÄΪT (REGEL 26) 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.SPARE BLADE (RULE 26) The object of the invention is to provide a low-voltage switch in which the transfer of the actuating lever into the switch-off position can be prevented even more reliably in the event of a welding of the contacts.
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 features defined in claim 1. Advantageous developments of the invention are specified in the subclaims.
Die Erfindung wird im folgenden anhand eines Ausführungsbeispiels unter Bezugnahme auf Zeichnungen näher erläutert .The invention is explained below using an exemplary embodiment with reference to drawings.
Es zeigen:Show it:
Fig. 1: eine Schnittansicht eines Niederspannungsschalters gemäß dem Ausführungsbeispiel im eingeschalteten Zustand, in dem der Betätigungshebel sich in der Betriebsstellung EIN befindet;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: 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. 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;
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;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 the release device which interacts with the latch lever;
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. 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;
Fig. 6: eine Schnittansicht des Niederspannungsschalters in seiner Ubergangsbetriebsstellung, in der wegen Kontaktverschweißung noch ein eingeschalteter Zustand gegeben und eine Verschiebung des Betätigungshebels m die Betriebsstellung AUS verhindert ist;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 in the operating position OFF is prevented;
Fig. 7: eine Schnittansicht des Niederspannungsschalters im ausgeschalteten Zustand, in dem der Betätigungshebel die Betriebsstellung AUS ungehindert einnehmen kann.7: a sectional view of the low-voltage switch in the switched-off state, in which the operating 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 Polbahngehause 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 Uberstromauslosung des Schaltschlosses dient und drehbar auf einer fest positionierten Achse 11 gelagert ist, gelenkig verbunden.As FIG. 1 shows, a movable contact 1 of the low-voltage switch is rotatably mounted on the axis 2 of a control shaft 3. The selector shaft 3 is itself mounted in a pole track housing, not shown. The selector shaft 3 has two diametrically opposite satellite axes 4 and 5, which are rotated about the axis 2 when the selector shaft 3 rotates. The axis 4 is the point of application of a knee joint plate 6, which is articulated at its other end by means of a knee joint axis 7 to a second knee joint plate designed in the form of a triangular element 8. The triangular element 8 is articulated at a second corner by means of an axis 9 to a ratchet lever 10, which is used for overcurrent release of the switch lock and is rotatably mounted on a fixedly positioned axis 11.
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, the triangular element 8 consists of two mutually parallel mirror-like plates, between which the latch lever 10 is received and mounted on the hinge axis 9, which firmly connects the plates together. In the area of the third corner of the triangular element 8, the plates are connected by means of a pin 12 which is connected to the ratchet lever 10 can be brought into contact to limit the movement of the triangular element 8.
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 brackets 6 are provided on both sides of the triangular element 8 and the pawl lever 10 arranged between them for reasons of symmetry and are connected to one another by means of the axis 7. A drive lever 13 shown in detail in FIG. 2 consists of two plates which extend in the respective planes from two side plates 15 of the drive housing and are supported in an articulated manner with their lower sections 13a shown in FIG. 4 on corresponding bearing sections 14 of the side plates 15 of the drive housing are. In the present exemplary embodiment, the drive lever 13 consists of a single U-shaped plate, on the connecting section of which a bolt 16 and an actuating handle 17 which is led out of the drive housing are attached. A drive spring 18 is arranged on each side of the triangular element 8 between the knee joint bolt functioning as axis 7 and the bolt 16 of the drive lever 13. The housing side plates 15 and the lower 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 identified in FIG. 1 by reference number 19. With this release device, the release of the ratchet lever 10 is controlled in a manner known per se.
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 fuhrt, daß die Kniegelenklasche 6 auf die Schaltwelle 3 in Schließrichtung des beweglichen Kontakts 1 einwirkt.In the operating position ON shown in FIGS. 1 and 4, the actuating handle 17 is in a position tilted to the left, so that the force line of action of the spring 18 runs to the left of the axis 9. Since, in the ON operating position, the pawl lever 10 cannot perform a counterclockwise upward movement as a result of an engagement with the triggering device 19 as a result of the spring force acting via the triangular element 8 and the axis 9, the spring force shifts to a clockwise direction Directed rotary movement of the triangular element 8 about the axis 9. The axis 7 is forced to cross the line connecting the axes 9 and 4, which leads to a - as explained above - blocked latch lever 10 that the knee joint 6 on the selector shaft 3 acts in the closing direction of the movable contact 1.
Die Fig. 5 zeigt die Betriebsstellung AUSGELOST. Der Niederspannungsschalter gelangt in diese Betriebsstellung, nachdem der Klinkenhebel 10 von der Ausloseeinrichtung 19 freigegeben worden ist. In dieser Betriebsstellung nimmt der Betatigungshandgriff 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 fuhrt.Fig. 5 shows the operating position LOST. The low-voltage switch comes into this operating position after the latch lever 10 has been released by the release device 19. In this operating position, the actuating handle 17 assumes the position shown in FIG. 5. As a result of the spring force exerted on the axis 7 in this position, the triangular element 8 together with the pawl lever 10 and the knee joint plate 6 articulated thereon is pulled upwards, which leads to a rotation of the control shaft 3 and thus to a separation of the movable contact 1.
Die wahrend des Betriebes möglichen Verschweißungen können dazu fuhren, 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 Ausloseeinrichtung 19 ist m der Fig. 6 gezeigt. Es ist also m diesem Zustand anhand der Position des Betatigungshandgriffs 17 nicht erkennbar, ob der Kontakt gelost ist oder nicht. Um den tatsächlichen Betriebszustand des Kontaktes 1 allein anhand der Position des Betatigungshandgriffs 17 feststellen zu können, weist die Schalterkonstruktion einige Besonderheiten, die im folgenden erläutert werden.The possible welds during operation can lead to the fact that a separation of the contact 1 under the sole action of the clamping force exerted by the spring 18 is not possible. Such a state with an open trigger device 19 is shown in FIG. 6. In this state, it is therefore not possible to tell from the position of the actuating handle 17 whether the contact has been released or not. In order to be able to determine the actual operating state of the contact 1 solely on the basis of the position of the actuating handle 17, the switch construction has some special features which are explained below.
Wie bereits der Darstellung der Figuren 1 und 4 zu entnehmen ist, ist auf der Außenseite einer oder beider Seltenplatten 15 des Antπebsgehauses 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, a locking lever 20 is arranged on the outside of one or both rare plates 15 of the anti-friction housing, which has one end on the satellite axis 5 of the selector shaft 3 and the other end on one Fixed pin 21 is articulated. The pin 21 is attached to the side plate 15 and in a formed in the locking lever 20 Elongated hole 22 out. At the slot-side end of the locking lever 20, a projection 23 is formed, which can be brought into engagement with a receiving section 24 formed on the drive lever 13. Thanks to this construction, the safe disconnection of the contact 1 indicating the final operating position OFF of the actuating handle 17 shown in FIG. 7 is 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 shifted clockwise until the sections 24 and 23 come into engagement. When attempting to move the operating handle 17 further in this direction, a compressive force is consequently exerted directly by the operating handle 17 via the drive lever 13 on the locking lever 20 and thus a torque acting on the selector shaft 3 in the clockwise direction is generated via the axis 5. Because this torque is very small due to the relatively short distance between axes 2 and 5, the separation resistance at contact 1 on actuating handle 17 caused by micro-welding is clearly noticeable. Accordingly, a person who tries to turn off the switch is immediately able to recognize that the operating handle 17 cannot be brought into the end operating position 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 the contact 1 is not welded, then the locking lever 20 assumes the position shown in FIG. 5, so that the actuating handle 17 together with the drive lever 13 can pass into the end operating position OFF shown in FIG. 7 without hindrance. In this way, a pin 25 attached to the drive lever 13 engages with the pawl lever 10 and pushes the latter downwards clockwise until the pawl lever 10 assumes a blocking position in the release 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 Uberstromauslösung 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 equipped with a drive lever 13 which can be actuated by an actuating handle 17 and which acts by means of a drive spring 18 on a knee joint 6, 7, 8 which provides an operative connection between a control shaft 3 for actuation a contact 1 and a latch lever 10 for controlling the overcurrent release. The switch also has a with "the drive lever 13 cooperating locking lever 20 which prevents the transfer of the operating handle 17 to the open position in case of blocked contact 1, wherein the locking lever 20 automatically by rotation of the control shaft 3 during the closing of the contact 1 in its locking position with respect can be brought to the drive lever.
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HU0103736A HU223108B1 (en) | 1998-09-11 | 1999-08-09 | Switch |
| AU57325/99A AU5732599A (en) | 1998-09-11 | 1999-08-09 | Switch |
| JP2000570802A JP4321965B2 (en) | 1998-09-11 | 1999-08-09 | switch |
| EP99944361A EP1110230B1 (en) | 1998-09-11 | 1999-08-09 | Switch |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19841685.7 | 1998-09-11 | ||
| DE19841685A DE19841685C2 (en) | 1998-09-11 | 1998-09-11 | switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000016358A1 true WO2000016358A1 (en) | 2000-03-23 |
Family
ID=7880684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1999/005829 Ceased WO2000016358A1 (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)
| 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 |
| EP2023365B1 (en) * | 2007-08-10 | 2015-09-16 | LS Industrial Systems Co., Ltd | Molded case circuit breaker with contact on mechanism |
| KR101015316B1 (en) * | 2008-12-31 | 2011-02-15 | 엘에스산전 주식회사 | Switchgear of wiring breaker which can display contact state and wiring breaker having same |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2508220A1 (en) * | 1974-03-01 | 1975-09-04 | Merlin Gerin | ELECTRIC SELF-SWITCH WITH INDICATION OF A CONTACT WELD |
| FR2418533A1 (en) * | 1978-02-28 | 1979-09-21 | Siemens Ag | LOW VOLTAGE ROCKER SWITCH |
| GB2226451A (en) * | 1988-12-08 | 1990-06-27 | Westinghouse Electric Corp | Limiting travel of circuit breaker operating lever |
| EP0584503A1 (en) * | 1992-08-17 | 1994-03-02 | KLÖCKNER-MOELLER GmbH | Circuit breaker mecanism |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| DE9401785U1 (en) * | 1994-02-03 | 1995-07-20 | Klöckner-Moeller GmbH, 53115 Bonn | Key switch with a locking mechanism |
-
1998
- 1998-09-11 DE DE19841685A patent/DE19841685C2/en not_active Expired - Fee Related
-
1999
- 1999-08-09 WO PCT/EP1999/005829 patent/WO2000016358A1/en not_active Ceased
- 1999-08-09 AU AU57325/99A patent/AU5732599A/en not_active Abandoned
- 1999-08-09 CN CN99810718.2A patent/CN1208799C/en not_active Expired - Lifetime
- 1999-08-09 JP JP2000570802A patent/JP4321965B2/en not_active Expired - Fee Related
- 1999-08-09 HU HU0103736A patent/HU223108B1/en not_active IP Right Cessation
- 1999-08-09 EP EP99944361A patent/EP1110230B1/en not_active Expired - Lifetime
- 1999-09-10 TW TW088115646A patent/TW493190B/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2508220A1 (en) * | 1974-03-01 | 1975-09-04 | Merlin Gerin | ELECTRIC SELF-SWITCH WITH INDICATION OF A CONTACT WELD |
| FR2418533A1 (en) * | 1978-02-28 | 1979-09-21 | Siemens Ag | LOW VOLTAGE ROCKER SWITCH |
| GB2226451A (en) * | 1988-12-08 | 1990-06-27 | Westinghouse Electric Corp | Limiting travel of circuit breaker operating lever |
| EP0584503A1 (en) * | 1992-08-17 | 1994-03-02 | KLÖCKNER-MOELLER GmbH | Circuit breaker mecanism |
Also Published As
| Publication number | Publication date |
|---|---|
| AU5732599A (en) | 2000-04-03 |
| JP4321965B2 (en) | 2009-08-26 |
| EP1110230B1 (en) | 2002-06-26 |
| HUP0103736A2 (en) | 2002-05-29 |
| DE19841685C2 (en) | 2002-10-31 |
| CN1319241A (en) | 2001-10-24 |
| HU223108B1 (en) | 2004-03-29 |
| JP2002525796A (en) | 2002-08-13 |
| TW493190B (en) | 2002-07-01 |
| CN1208799C (en) | 2005-06-29 |
| DE19841685A1 (en) | 2000-03-30 |
| EP1110230A1 (en) | 2001-06-27 |
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