EP0616351B1 - Switching device, in particular circuit breaker - Google Patents

Switching device, in particular circuit breaker Download PDF

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Publication number
EP0616351B1
EP0616351B1 EP93104531A EP93104531A EP0616351B1 EP 0616351 B1 EP0616351 B1 EP 0616351B1 EP 93104531 A EP93104531 A EP 93104531A EP 93104531 A EP93104531 A EP 93104531A EP 0616351 B1 EP0616351 B1 EP 0616351B1
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EP
European Patent Office
Prior art keywords
switching device
movable contact
contact
tensioning lever
moving contact
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
EP93104531A
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German (de)
French (fr)
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EP0616351A1 (en
Inventor
Christian Dipl.-Ing. Weinzierl
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.)
Siemens AG
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Siemens AG
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
Priority to DE59302753T priority Critical patent/DE59302753D1/en
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP93104531A priority patent/EP0616351B1/en
Priority to ES93104531T priority patent/ES2088804T3/en
Priority to AT93104531T priority patent/ATE138760T1/en
Priority to TR00159/94A priority patent/TR27419A/en
Priority to IL10870294A priority patent/IL108702A/en
Priority to IL10874694A priority patent/IL108746A/en
Publication of EP0616351A1 publication Critical patent/EP0616351A1/en
Application granted granted Critical
Publication of EP0616351B1 publication Critical patent/EP0616351B1/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
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts
    • 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
    • H01H1/34—Contacts characterised by the manner in which co-operating contacts engage by abutting with provision for adjusting position of contact relative to its co-operating contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H2011/0075—Apparatus or processes specially adapted for the manufacture of electric switches calibrating mechanical switching properties, e.g. "snap or switch moment", by mechanically deforming a part of the switch, e.g. elongating a blade spring by puncturing it with a laser

Definitions

  • the invention relates to a switching device, in particular circuit breakers, such as circuit breakers, the at least one of their switch contacts as a moving contact via kinematics, which can be part of a switch lock, is connected to a manual control element, and whose contact wear can be compensated for by an adjustable overstroke.
  • circuit breakers such as circuit breakers
  • Switching devices of this type are on the market.
  • the moving contact in the assembly has so far usually been deformed in such a way that the desired contact opening is achieved in a certain position in the open position of the contacts. If there is sufficient contact overrun, this ensures that a moving contact makes contact with its mating contact, usually the fixed contact, both in the case of new contacts and in the case of worn contacts.
  • manufacturing-related tolerances can influence both the overstroke and the opening distance until the respective minimum dimensions are undershot. In practice, therefore, the moving contact had to be deformed in such a way that both the contact overstroke and the opening distance were ensured.
  • the invention has for its object to develop a switching device whose design principle allows the adjustment to be simplified so that it can also be carried out in large-scale industrial assembly with technical means.
  • a link works as a clamping lever with the moving contact, in that the moving contact has a bendable web as an adjustment web in a rigid basic structure.
  • the adjustment web rests on an associated contact edge in the open position of the contacts by means of an engagement body. Since the adjustment web is designed in a rigid basic structure, it can be deformed in a suitable basic position of the switch lock or the moving contacts in its open position until the engaging body rests on an associated contact edge.
  • the adjustment can be achieved, for example, by mechanical intervention of a corresponding bending mandrel.
  • the engaging body is designed as a molded part of the moving contact. You are then independent of the thickness of the moving contact, for which you have to take into account the intended current strength. The adjustment process is then independent of the nominal distance of the switching device. The assignment of clamping lever, moving contact and fixed contact can be set up in a single adjustment process. The advantage then is that there is no need to deform wherever there is to be measured. If one measures or adjusts the contact distance, it is sufficient to make deformations on the adjusting web of the tensioning lever.
  • the tensioning lever guides the moving contact about an axis of rotation
  • the moving contact extending on both sides to its axis of rotation with two legs, one leg can have the contact point and the other leg can form the engagement body for the adjustment web of the tensioning lever.
  • the switching device When the switching device is designed as a circuit breaker, it is advantageous if the moving contact forms an area of action for an armature.
  • the engagement of the plunger When adjusting the assignment of the tension lever, moving contact and fixed contact, the engagement of the plunger is not changed.
  • the assignment to the submersible anchor is therefore not influenced in the desired manner during adjustment.
  • the circuit breaker Even large tolerance ranges can be compensated or adjusted with small adjustment paths and thus in a small installation space.
  • a translation with respect to the engagement body axis of rotation to the contact axis of rotation is beneficial.
  • the moving contact can easily form a driver area for a submersible anchor.
  • the moving contact has a structure in two planes which are connected by at least one bridge, in particular according to claim 6, the kinematics can be accommodated in the vicinity of a side wall of a housing of the switching device and gain construction space which is otherwise required in the central area .
  • the contact area can be provided between the detected structural part in one plane and the other, the second structural part in the other plane, which forms the engaging body as a molded part for contacting the adjustment web of the tensioning lever.
  • the bridge for connecting the two structural parts of the moving contact can be matched to the area of action of an armature by arrangement and shaping.
  • the bridge can be U-shaped according to claim 7 in order to form an area of action for a submersible anchor on the inner curvature. With the arrangement of the bridge, one can also take into account simple, easy manufacture or make space by suitable bulging.
  • the engaging body of the moving contact for bearing against the adjusting web of the tensioning lever can be designed as a passage in the second structural part against which the tensioning lever is pressed under spring force.
  • the tensioning lever also has a structure in two planes, the two structural parts being connected by a bridge and the tensioning lever leading the moving contact about an axis of rotation which is held between these structural parts, in particular according to claim 9
  • Compression spring on the axis of rotation can bring the passage in the structural part of the moving contact into contact with the adjustment web of the tensioning lever.
  • the passage can be pressed out of a stamped part like a dome.
  • the compression spring according to claim 10 at the same time as a torsion spring that braces the tensioning lever and the moving contact and effects the contact force.
  • a second torsion spring can be arranged on the axis of rotation, which braces the tensioning lever and the moving contact and which, together with the first torsion spring which also acts as a compression spring, brings about the contact force.
  • a flat spring characteristic can be achieved by a large contact force as the sum of two springs, so that the contact force remains almost unchanged in the event of erosion and corresponding changes in the position of the moving contact, which is beneficial for the electrical properties of the switching device.
  • the first structural part of the moving contact forms a system for a latching rod which is articulated on the manual control element and causes a latching position for the moving contact on its switch-on path to the fixed contact, which is suddenly released by the latching rod before the switch-on movement ends becomes.
  • a switching device comes in Compared to a version without instantaneous engagement without increased engagement force.
  • it is sufficient to hang the latching rod in the roller body in a manual control element with a roller-shaped body about the axis of rotation. It is favorable to carry out the rest area in the vicinity of the fixed contact, so that the path and time to the contact system are short.
  • the switching device according to FIG 1 can be understood as an on and off switch or as a circuit breaker without a trigger system, in particular without an armature of the magnetic trigger is illustrated.
  • the switching device 1 has switching contacts, a fixed contact 2 and a moving contact 3.
  • the moving contact can be actuated from a manual control element 6 via a kinematics 4, which can be part of a switch lock 5.
  • the effects of contact erosion in the closed position of the contacts are compensated for by an adjustable overstroke.
  • the manual control element 6 merges into a roller-shaped body 7 with a rotary bearing 8.
  • a link is designed as a tensioning lever 9, which cooperates with the moving contact 3, in which the tensioning lever 9 or the moving contact 3 has a bendable web as an adjusting web 10 in a rigid basic structure.
  • the adjustment web 10 can rest against a contact edge 12 in the open position of the contacts.
  • the tensioning lever 9 has a bendable web as an adjustment web 10 in a rigid basic structure.
  • the engaging body 11 is designed as a molded part of the moving contact 3.
  • the adjustment web 10 in the surrounding rigid basic structure of the tensioning lever 9 is adjusted by being bent out until its contact edge 12 abuts the engagement body 11 in the open position of the contacts 2 and 3.
  • the adjusting web 10 is limited in a straight line in its initial state and is bent out to the lines shown in broken lines.
  • the tensioning lever 9 guides the moving contact 3 about an axis of rotation 24, the moving contact extending on both sides to its axis of rotation 24 with two legs, one leg of which receives the contact point or the contact piece 14.
  • the other leg forms the entry body 11 to the adjusting web 10 of the tensioning lever 9.
  • the moving contact 3 forms an area of action 17 of an armature 18.
  • the armature 18 is designed as a submersible anchor and the area of action 17 as a driver area.
  • the moving contact 3 has a structure in two planes, at least in the area of the tensioning lever 9, which are connected by at least one bridge, as can be seen in conjunction with FIG. 3 according to one exemplary embodiment.
  • a first structural part 19 runs in one plane and the other, second structural part 20 in another plane; it forms the engagement body 11 as a molded part.
  • the actual contact area with the contact piece 14 extends between the levels.
  • the bridge 21 between the structural parts 19 and 20 can in particular be U-shaped, as can be seen from FIG. 6.
  • the engaging body 11 of the moving contact 3 can be designed as a passage in the second structural part 20.
  • the adjusting web 10 of the clamping lever 9 is pressed against the engagement body 11 in the second structural part 20 of the moving contact 3 under the pressure force of the spring 22.
  • the spring 22 also acts as a torsion spring, in that it clamps on the one hand against the bridge 21 of the moving contact 3 and on the other hand against an arm of the tensioning lever 9.
  • the contact force can be supplemented by a further spring 23, which is designed as a torsion spring.
  • First structural part and second structural part 19, 20 form arms which are spaced apart for receiving an axis of rotation 24.
  • the tensioning lever 9 also has a structure in two planes, the two structural parts 25 and 26 being connected to one another by a bridge 27.
  • the clamping lever 9 forms an axis of rotation 24 which is held between these structural parts and guides the moving contact 3.
  • the first structural part 19 of the moving contact 3 forms a system for a locking rod 28 which is guided in the roller body 7 of the manual actuating element 6 the switch-on movement for the moving contact on the first structural part 19 of the moving contact 3.
  • the latching rod is withdrawn, so that it suddenly releases the switch contacts into the switch-on position on a step-shaped profile.
  • the step-shaped profile of the system 30 of the first structural part 19 of the moving contact 3 is illustrated in FIGS. 2, 4 and 5.
  • FIG. 4 shows the open position of the switch contacts
  • FIG. 5 shows an intermediate position for the switch-on process
  • FIG. 2 shows the switch-on position.
  • the locking rod 28 Since the locking rod 28 is articulated directly on the manual control element 1 with its roller body 7 or a corresponding lever arm, tolerances due to the transmission remain without influence. On the other hand, the latching position can be carried out in the vicinity of the fixed contact 2, so that tolerance-dependent movements are further shortened.
  • the locking rod 28 is deposited on a housing rib 31 in the sense of an abutment and on the system 30 of the moving contact 3.
  • the moving contact 3 has a tab on one of its structural parts in the vicinity of its axis of rotation 24 32 according to FIG. 7 for welding conductors, in particular stranded conductors.
  • a favorable construction of the moving contact can be seen from the overview of FIGS. 7 and 8.
  • a favorable construction of the tensioning lever 9 can be seen from the overview of FIGS. 9, 10 and 11. 9 is advantageously widened towards the axis of rotation 24 in order to leave the axis of rotation 24 with sufficient strength within a rigid basic structure 33.
  • the clamping lever 9 can be integrated into the kinematics of the switching device by means of a further axis of rotation 34.

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Breakers (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Burglar Alarm Systems (AREA)
  • Electronic Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)

Abstract

A switching device, in particular a circuit breaker, such as a line protection circuit breaker, at least one of whose switching contacts (2, 3) is connected, as a moving contact (3) via a kinematic system (4) which may be part of a latching mechanism (5), to a manual operating device (6), and whose contact erosion can be compensated for by means of an adjustable excess movement. It is provided, that, in the kinematic system (4), one element interacts as a clamping lever (9) with the moving contact (3), in that the clamping lever (9) or moving contact (3) has, in a stiff basic structure (33, cf. FIG 9), a web which can bend out as an adjusting web (10) which rests, by means of an engagement body (11), on an associated bearing edge (12) when the contacts (2, 3) are in the open position. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Schalteinrichtung, insbesondere Schutzschalter, wie Leitungsschutzschalter, deren zumindest einer ihrer Schaltkontakte als Bewegkontakt über eine Kinematik, die Teil eines Schaltschlosses sein kann, mit einem Handbedienungsorgan in Verbindung steht, und deren Kontaktabbrand sich durch einen justierbaren Überhub kompensieren läßt. Derartige Schalteinrichtungen sind auf dem Markt.The invention relates to a switching device, in particular circuit breakers, such as circuit breakers, the at least one of their switch contacts as a moving contact via kinematics, which can be part of a switch lock, is connected to a manual control element, and whose contact wear can be compensated for by an adjustable overstroke. Switching devices of this type are on the market.

Bei justierbaren Schalteinrichtungen wird bisher üblicherweise der Bewegkontakt in der Montage so verformt, daß bei einer bestimmten Position in Offenstellung der Kontakte die gewünschte Kontaktöffnung erzielt wird. Bei ausreichendem Kontaktüberhub ist dadurch die Kontaktgabe eines Bewegkontaktes zu seinem Gegenkontakt, in der Regel dem Festkontakt, sowohl bei neuen als auch bei abgebrannten Kontakten sichergestellt. Allerdings können fertigungsbedingte Toleranzen sowohl den Überhub als auch die Öffnungsstrecke bis zur Unterschreitung der jeweiligen Mindestmaße beeinflussen. In der Praxis mußte daher der Bewegkontakt derart verformt werden, daß sowohl der Kontaktüberhub als auch die Öffnungsstrecke sichergestellt waren.In the case of adjustable switching devices, the moving contact in the assembly has so far usually been deformed in such a way that the desired contact opening is achieved in a certain position in the open position of the contacts. If there is sufficient contact overrun, this ensures that a moving contact makes contact with its mating contact, usually the fixed contact, both in the case of new contacts and in the case of worn contacts. However, manufacturing-related tolerances can influence both the overstroke and the opening distance until the respective minimum dimensions are undershot. In practice, therefore, the moving contact had to be deformed in such a way that both the contact overstroke and the opening distance were ensured.

Der Erfindung liegt die Aufgabe zugrunde, eine Schalteinrichtung zu entwickeln, deren Konstruktionsprinzip es erlaubt, die Justierung so zu vereinfachen, daß sie auch in großindustrieller Montage mit technischen Mitteln durchgeführt werden kann.The invention has for its object to develop a switching device whose design principle allows the adjustment to be simplified so that it can also be carried out in large-scale industrial assembly with technical means.

Die Lösung der geschilderten Aufgabe erfolgt durch eine Schalteinrichtung nach Patentanspruch 1. In der Kinematik arbeitet ein Glied als Spannhebel mit dem Bewegkontakt zusammen, indem der Bewegkontakt in einer steifen Grundstruktur einen ausbiegbaren Steg als Justiersteg aufweist. Der Justiersteg liegt mittels eines Eingriffskörpers an einer zugeordneten Anlagekante in der Offenstellung der Kontakte an. Da der Justiersteg in einer steifen Grundstruktur ausgeführt ist, kann dieser bei einer geeigneten Grundstellung des Schaltschlosses bzw. des Bewegkontakte in dessen Offenstellung bis zur Anlage des Eingriffskörpers an einer zugeordneten Anlagekante verformt werden. Die Justierung kann beispielsweise durch maschinellen Eingriff eines entsprechenden Biegedorns erzielt werden.The solution to the problem described is achieved by a switching device according to claim 1. In the kinematics, a link works as a clamping lever with the moving contact, in that the moving contact has a bendable web as an adjustment web in a rigid basic structure. The adjustment web rests on an associated contact edge in the open position of the contacts by means of an engagement body. Since the adjustment web is designed in a rigid basic structure, it can be deformed in a suitable basic position of the switch lock or the moving contacts in its open position until the engaging body rests on an associated contact edge. The adjustment can be achieved, for example, by mechanical intervention of a corresponding bending mandrel.

Eine Weiterbildung besteht darin, daß der Eingriffskörper als Formteil des Bewegkontaktes ausgeführt ist. Man ist dann unabhängig von der Dicke des Bewegkontaktes, bei der man die vorgesehene Stromstärke zu berücksichtigen hat. Der Justiervorgang ist dann insoweit unabhängig von der Nennstrecke der Schalteinrichtung. Durch einen einzigen Justiervorgang kann man die Zuordnung von Spannhebel, Bewegkontakt und Festkontakt einrichten. Man hat dann den Vorteil, daß dort wo zu messen ist nicht verformt werden muß. Wenn man also den Kontaktabstand mißt bzw. einstellt, genügt es, am Justiersteg des Spannhebels Verformungen vorzunehmen.A further development is that the engaging body is designed as a molded part of the moving contact. You are then independent of the thickness of the moving contact, for which you have to take into account the intended current strength. The adjustment process is then independent of the nominal distance of the switching device. The assignment of clamping lever, moving contact and fixed contact can be set up in a single adjustment process. The advantage then is that there is no need to deform wherever there is to be measured. If one measures or adjusts the contact distance, it is sufficient to make deformations on the adjusting web of the tensioning lever.

Wenn der Spannhebel um eine Drehachse den Bewegkontakt führt, wobei sich der Bewegkontakt beidseitig zu seiner Drehachse mit zwei Schenkeln erstreckt, kann der eine Schenkel die Kontaktstelle aufweisen und der andere Schenkel den Eingriffskörper zum Justiersteg des Spannhebels bilden. Durch geeignete Wahl der Schenkel des Bewegkontaktes läßt sich für die Justierung eine den Erfordernissen entsprechende Übersetzung erzielen. So kann beispielsweise durch eine kleine Justierbewegung einem großen Kontaktöffnungsbereich entsprochen werden.If the tensioning lever guides the moving contact about an axis of rotation, the moving contact extending on both sides to its axis of rotation with two legs, one leg can have the contact point and the other leg can form the engagement body for the adjustment web of the tensioning lever. By a suitable choice of the legs of the moving contact, a translation corresponding to the requirements can be achieved for the adjustment. For example a large contact opening area can be met by a small adjustment movement.

Bei einer Ausführung der Schalteinrichtung als Schutzschalter ist es günstig, wenn der Bewegkontakt einen Einwirkungsbereich für einen Anker bildet. Bei der Justierung der Zuordnung Spannhebel, Bewegkontakt und Festkontakt wird der Eingriff des Tauchankers dadurch nicht verändert. Die Zuordnung zum Tauchanker wird also beim Justieren in gewünschter Weise nicht beeinflußt. Beim Schutzschalter können dann selbst große Toleranzbereiche mit kleinen Justierwegen und somit in kleinem Bauraum ausgeglichen bzw. justiert werden. Hierbei ist eine Übersetzung hinsichtlich Eingriffskörper-Drehachse zu Kontakt-Drehachse förderlich.When the switching device is designed as a circuit breaker, it is advantageous if the moving contact forms an area of action for an armature. When adjusting the assignment of the tension lever, moving contact and fixed contact, the engagement of the plunger is not changed. The assignment to the submersible anchor is therefore not influenced in the desired manner during adjustment. With the circuit breaker, even large tolerance ranges can be compensated or adjusted with small adjustment paths and thus in a small installation space. Here, a translation with respect to the engagement body axis of rotation to the contact axis of rotation is beneficial.

In einfacher Weise kann der Bewegkontakt einen Mitnehmerbereich für einen Tauchanker bilden.The moving contact can easily form a driver area for a submersible anchor.

Wenn der Bewegkontakt zumindest im Bereich des Spannhebels eine Struktur in zwei Ebenen aufweist, die durch zumindest eine Brücke verbunden sind, im einzelnen nach Anspruch 6, kann man die Kinematik in der Nähe einer Seitenwand eines Gehäuses der Schalteinrichtung unterbringen und im Mittelbereich anderweitig erforderlichen Konstruktionsraum gewinnen. Zwischen dem erfaßten Strukturteil in einer Ebene und dem anderen, dem zweiten Strukturteil in der anderen Ebene, das den Eingriffskörper als Formteil zum Anliegen am Justiersteg des Spannhebels bildet, kann man den Kontaktbereich vorsehen. Die Brücke zum Verbinden der beiden Strukturteile des Bewegkontakts kann durch Anordnung und Ausformung auf den Einwirkungsbereich eines Ankers abgestimmt werden. Insbesondere kann die Brücke nach Anspruch 7 U-förmig ausgebildet sein, um auf der Innenwölbung einen Einwirkungsbereich für einen Tauchanker zu bilden. Mit der Anordnung der Brücke kann man auch eine einfache, leichte Fertigung berücksichtigen oder auch durch geeignetes Ausbauchen Platz schaffen.If, at least in the area of the tensioning lever, the moving contact has a structure in two planes which are connected by at least one bridge, in particular according to claim 6, the kinematics can be accommodated in the vicinity of a side wall of a housing of the switching device and gain construction space which is otherwise required in the central area . The contact area can be provided between the detected structural part in one plane and the other, the second structural part in the other plane, which forms the engaging body as a molded part for contacting the adjustment web of the tensioning lever. The bridge for connecting the two structural parts of the moving contact can be matched to the area of action of an armature by arrangement and shaping. In particular, the bridge can be U-shaped according to claim 7 in order to form an area of action for a submersible anchor on the inner curvature. With the arrangement of the bridge, one can also take into account simple, easy manufacture or make space by suitable bulging.

Zur Erleichterung der Fertigung kann der Eingriffskörper des Bewegkontaktes zur Anlage am Justiersteg des Spannhebels nach Anspruch 8 als Durchzug im zweiten Strukturteil ausgeführt sein, gegen den der Spannhebel unter Federkraft angedrückt wird.To facilitate production, the engaging body of the moving contact for bearing against the adjusting web of the tensioning lever can be designed as a passage in the second structural part against which the tensioning lever is pressed under spring force.

Es ist vorteilhaft, wenn auch der Spannhebel eine Struktur in zwei Ebenen aufweist, wobei die beiden Strukturteile durch eine Brücke verbunden sind und wobei der Spannhebel um eine Drehachse, die zwischen diesen Strukturteilen gehalten ist, den Bewegkontakt führt, im einzelnen nach Anspruch 9. Eine Druckfeder auf der Drehachse kann den Durchzug im Strukturteil des Bewegkontaktes mit dem Justiersteg des Spannhebels in Anlage bringen. Der Durchzug kann aus einem Stanzteil domartig herausgedrückt werden. Es ist vorteilhaft, die Druckfeder nach Anspruch 10 zugleich als eine Drehfeder auszuführen, die Spannhebel und Bewegkontakt verspannt und die Kontaktkraft bewirkt. Auf der Drehachse kann nach Anspruch 11 eine zweite Drehfeder angeordnet sein, die Spannhebel und Bewegkontakt verspannt und die zusammen mit der zugleich als Druckfeder wirkenden ersten Drehfeder die Kontaktkraft bewirkt. Man erzielt dadurch Montagevorteile. Außerdem kann durch eine große Kontaktkraft als Summe aus zwei Federn eine flache Federcharakteristik erreicht werden, so daß bei Abbrand und entsprechenden Veränderungen in der Stellung des Bewegkontaktes die Kontaktkraft nahezu unverändert bleibt, was für die elektrischen Eigenschaften der Schalteinrichtung förderlich ist.It is advantageous if the tensioning lever also has a structure in two planes, the two structural parts being connected by a bridge and the tensioning lever leading the moving contact about an axis of rotation which is held between these structural parts, in particular according to claim 9 Compression spring on the axis of rotation can bring the passage in the structural part of the moving contact into contact with the adjustment web of the tensioning lever. The passage can be pressed out of a stamped part like a dome. It is advantageous to design the compression spring according to claim 10 at the same time as a torsion spring that braces the tensioning lever and the moving contact and effects the contact force. According to claim 11, a second torsion spring can be arranged on the axis of rotation, which braces the tensioning lever and the moving contact and which, together with the first torsion spring which also acts as a compression spring, brings about the contact force. This gives assembly advantages. In addition, a flat spring characteristic can be achieved by a large contact force as the sum of two springs, so that the contact force remains almost unchanged in the event of erosion and corresponding changes in the position of the moving contact, which is beneficial for the electrical properties of the switching device.

Nach einer Weiterbildung nach Anspruch 12 ist vorgesehen, daß das erste Strukturteil des Bewegkontaktes eine Anlage für eine Raststange bildet, die am Handbedienungsorgan angelenkt ist und für den Bewegkontakt auf seinem Einschaltweg zum Festkontakt eine Raststellung bewirkt, die durch die Raststange vor Beendigung der Einschaltbewegung sprunghaft gelöst wird. Eine derartige Schalteinrichtung kommt im Vergleich zu einer Ausführung ohne Momenteinschaltung ohne erhöhte Einschaltkraft aus. Um die Momenteinschaltung zu erreichen, genügt es, in einem Handbedienungsorgan mit walzenförmigem Körper um die Drehachse, die Raststange im Walzenkörper einzuhängen. Es ist günstig, die Raststelle in der Nähe des Festkontaktes auszuführen, so daß Weg und Zeit bis zur Kontaktanlage kurz sind. Durch eine derartige Momenteinschaltung vermeidet man bei hohen Nennströmen ab einer Größenordnung von 63 A die unerwünschte sogenannte schleichende Kontaktberührung. Hierbei kommt es im zeitlichen Ablauf des Einschaltvorgangs zu ungleichmäßigen und nicht vergleichbaren Kontaktberührungen, die von der Bewegung des von Hand betätigten in die Einschaltstellung zu überführenden Handbetätigungsorgans abhängen. Eine derartige Momenteinschaltung in Verbindung mit der einfachen Justierung ist allgemein für Schalteinrichtungen, also nicht nur für Schutzschalter, vorteilhaft. Beim Einrichten der Zuordnung von Spannhebel, Bewegkontakt und Festkontakt beim Justieren wird auch die Zuordnung zur Raststange nicht berührt. Wenn also die Zugordnung von Spannhebel, Bewegkontakt und Festkontakt am Justiersteg eingerichtet wird, werden die weiteren Zuordnungen, wie zum Tauchanker und zur Raststange nicht beeinträchtigt.According to a further development according to claim 12, it is provided that the first structural part of the moving contact forms a system for a latching rod which is articulated on the manual control element and causes a latching position for the moving contact on its switch-on path to the fixed contact, which is suddenly released by the latching rod before the switch-on movement ends becomes. Such a switching device comes in Compared to a version without instantaneous engagement without increased engagement force. In order to achieve the moment engagement, it is sufficient to hang the latching rod in the roller body in a manual control element with a roller-shaped body about the axis of rotation. It is favorable to carry out the rest area in the vicinity of the fixed contact, so that the path and time to the contact system are short. By switching on the torque in this way, the undesirable so-called creeping contact contact is avoided at high nominal currents from an order of magnitude of 63 A. This results in non-uniform and incomparable contact touches in the course of the switch-on process, which depend on the movement of the manual actuating member to be moved into the switch-on position. Such a moment switching in connection with the simple adjustment is generally advantageous for switching devices, that is to say not only for circuit breakers. When setting up the assignment of the clamping lever, moving contact and fixed contact when adjusting, the assignment to the locking rod is not affected. If the pulling order of the tension lever, moving contact and fixed contact is set up on the adjustment bar, the further assignments, such as to the plunger anchor and the locking rod, are not impaired.

Schließlich ist es günstig, eine Schalteinrichtung nach Anspruch 13 so auszuführen, daß der Bewegkontakt an einem seiner Strukturteile in der Nähe seiner Drehachse einen Lappen zum Anschweißen von Leitern, insbesondere Litzenleitern, bildet. Man kann so eine günstige Anschweißstelle wählen und verhindern, daß vom anzuschließenden Leiter infolge seiner Steifheit das Auslöseverhalten eines Schutzschalters beeinträchtigt werden könnte.Finally, it is expedient to design a switching device according to claim 13 so that the moving contact forms a tab on one of its structural parts in the vicinity of its axis of rotation for welding conductors, in particular stranded conductors. You can choose a cheap welding point and prevent the triggering behavior of a circuit breaker from being impaired due to its stiffness.

Die Erfindung soll nun anhand von in der Zeichnung grob schematisch wiedergegebenen Ausführungsbeispielen näher erläutert werden:

In FIG 1
ist eine Schalteinrichtung in ihrer Kinematik und mit den Schaltkontakten bei geöffnetem Gehäuse in Teilansicht und in Offenstellung der Kontakte veranschaulicht.
In FIG 2
ist die Kinematik der Schalteinrichtung nach FIG 1 ohne Gehäuse und mit angeordnetem Anker und zusätzlich einer Raststange bei geschlossenen Kontakten wiedergegeben.
In FIG 3
ist die Verbindung von Bewegkontakt und Spannhebel in Ansicht von rechts der Anordnung nach FIG 2 dargestellt.
In FIG 4
ist in der Darstellungsweise nach FIG 1, jedoch mit einer Raststange, die Schalteinrichtung in Offenstellung der Kontakte wiedergegeben.
In FIG 5
ist eine Schalteinrichtung bei Aufbau nach FIG 4 in einer Zwischenstellung der Kontakte, vor deren völliger Einschaltung wiedergegeben.
In FIG 6
ist zur Anordnung nach FIG 2 die Draufsicht auf den Bewegkontakt nach Entfernen der weiteren kinematischen Glieder zusammen mit dem Anker dargestellt. Diese Draufsicht gewinnt man bei der Anordnung nach FIG 2 durch Aufsicht von oben, nachdem die weiteren kinematischen Glieder entfernt wurden.
In FIG 7
ist ein Ausführungsbeispiel für einen einzelnen Bewegkontakt in Seitenansicht wiedergegeben.
In FIG 8
ist der Bewegkontakt nach FIG 7 in Seitenansicht, und zwar in Ansicht von links, dargestellt.
In FIG 9
ist ein Ausführungsbeispiel für einen einzelnen Spannhebel in Seitenansicht wiedergegeben.
In FIG 10
ist der Spannhebel nach FIG 9 bei Ansicht von links und teilweise geschnitten veranschaulicht.
In FIG 11
ist der Spannhebel nach FIG 9 in Draufsicht wiedergegeben.
The invention will now be explained in more detail with reference to exemplary embodiments shown roughly schematically in the drawing:
In FIG. 1
is a switching device in its kinematics and illustrated with the switch contacts with the housing open in partial view and in the open position of the contacts.
In FIG. 2
is the kinematics of the switching device shown in FIG 1 without a housing and with an arranged armature and additionally a locking rod with closed contacts.
In FIG. 3
the connection of the moving contact and the clamping lever is shown in a view from the right of the arrangement according to FIG. 2.
In FIG. 4
is shown in the representation of FIG 1, but with a locking rod, the switching device in the open position of the contacts.
5
is a switching device in the construction of FIG 4 shown in an intermediate position of the contacts, before they are completely switched on.
6
2 shows the top view of the moving contact after removal of the further kinematic elements together with the armature for the arrangement according to FIG. This top view is obtained in the arrangement according to FIG. 2 by supervision from above after the further kinematic elements have been removed.
In FIG. 7
is an embodiment of a single moving contact shown in side view.
8
7 shows the moving contact according to FIG. 7 in a side view, specifically in a view from the left.
In FIG. 9
is an embodiment of a single clamping lever shown in side view.
In FIG. 10
the tensioning lever according to FIG. 9 is illustrated in a view from the left and partly in section.
In FIG. 11
the tensioning lever according to FIG. 9 is shown in a top view.

Die Schalteinrichtung nach FIG 1 kann als Ein- und Ausschalter verstanden werden oder als Schutzschalter, der ohne Auslösesystem, insbesondere ohne Anker des Magnetauslösers veranschaulicht ist. Die Schalteinrichtung 1 weist Schaltkontakte, einen Festkontakt 2 und einen Bewegkontakt 3 auf. Der Bewegkontakt kann über eine Kinematik 4, die Teil eines Schaltschlosses 5 sein kann, von einem Handbedienungsorgan 6 aus betätigt werden. Die Auswirkungen eines Kontaktabbrandes in der Schließstellung der Kontakte sind durch einen justierbaren Überhub kompensiert. Das Handbedienungsorgan 6 geht in einen walzenförmigen Körper 7 mit Drehlager 8 über.The switching device according to FIG 1 can be understood as an on and off switch or as a circuit breaker without a trigger system, in particular without an armature of the magnetic trigger is illustrated. The switching device 1 has switching contacts, a fixed contact 2 and a moving contact 3. The moving contact can be actuated from a manual control element 6 via a kinematics 4, which can be part of a switch lock 5. The effects of contact erosion in the closed position of the contacts are compensated for by an adjustable overstroke. The manual control element 6 merges into a roller-shaped body 7 with a rotary bearing 8.

In der Kinematik 4 der Schalteinrichtung ist ein Glied als Spannhebel 9 ausgeführt, das mit dem Bewegkontakt 3 zusammenarbeitet, in dem der Spannhebel 9 oder der Bewegkontakt 3 in einer steifen Grundstruktur einen ausbiegbaren Steg als Justiersteg 10 aufweist. Mittels eines Eingriffskörpers 11 kann der Justiersteg 10 an einer Anlagekante 12 in der Offenstellung der Kontakte anliegen.In the kinematics 4 of the switching device, a link is designed as a tensioning lever 9, which cooperates with the moving contact 3, in which the tensioning lever 9 or the moving contact 3 has a bendable web as an adjusting web 10 in a rigid basic structure. By means of an engagement body 11, the adjustment web 10 can rest against a contact edge 12 in the open position of the contacts.

Im Ausführungsbeispiel nach FIG 1 weist der Spannhebel 9 in einer steifen Grundstruktur einen ausbiegbaren Steg als Justiersteg 10 auf. Der Eingriffskörper 11 ist als Formteil des Bewegkontaktes 3 ausgeführt. Der Justiersteg 10 in der umgebenden steifen Grundstruktur des Spannhebels 9 wird justiert, indem er ausgebogen wird, bis seine Anlagekante 12 in Offenstellung der Kontakte 2 und 3 am Eingriffskörper 11 anliegt. Der Justiersteg 10 ist im Ausführungsbeispiel in seinem Ausgangszustand geradlinig begrenzt und wird bis zu den gestrichelt wiedergegebenen Linien ausgebogen.In the exemplary embodiment according to FIG. 1, the tensioning lever 9 has a bendable web as an adjustment web 10 in a rigid basic structure. The engaging body 11 is designed as a molded part of the moving contact 3. The adjustment web 10 in the surrounding rigid basic structure of the tensioning lever 9 is adjusted by being bent out until its contact edge 12 abuts the engagement body 11 in the open position of the contacts 2 and 3. In the exemplary embodiment, the adjusting web 10 is limited in a straight line in its initial state and is bent out to the lines shown in broken lines.

Im Ausführungsbeispiel nach FIG 1 führt der Spannhebel 9 um eine Drehachse 24 den Bewegkontakt 3, wobei sich der Bewegkontakt beidseitig zu seiner Drehachse 24 mit zwei Schenkeln erstreckt, von denen der eine Schenkel die Kontaktstelle bzw. das Kontaktstück 14 aufnimmt. Der andere Schenkel bildet den Eintriffskörper 11 zum Justiersteg 10 des Spannhebels 9. Durch Wahl entsprechender Schenkellängen kann ein Übersetzungsverhältnis für die Auswirkung des Justiermaßes 15 auf das Öffnungsmaß 16 der Schaltkontakte in Offenstellung eingestellt werden. Als Justiermaß wird hierbei das Ausmaß bzw. die Strecke der Verformung des Justierstegs bzw. seiner Anlagekante 12 vom Ausgangszustand bis zum Endzustand nach der Justierung verstanden. Das Öffnungsmaß ist die Öffnungsstrecke zwischen den Schaltkontakten.In the exemplary embodiment according to FIG. 1, the tensioning lever 9 guides the moving contact 3 about an axis of rotation 24, the moving contact extending on both sides to its axis of rotation 24 with two legs, one leg of which receives the contact point or the contact piece 14. The other leg forms the entry body 11 to the adjusting web 10 of the tensioning lever 9. By choosing appropriate leg lengths A transmission ratio for the effect of the adjustment dimension 15 on the opening dimension 16 of the switch contacts in the open position can be set. The extent or distance of the deformation of the adjustment web or its contact edge 12 from the initial state to the final state after the adjustment is understood as the adjustment dimension. The opening dimension is the opening distance between the switch contacts.

Bei Ausführung der Schalteinrichtung als Schutzschalter nach FIG 2 bildet der Bewegkontakt 3 einen Einwirkungsbereich 17 eines Ankers 18. Im Ausführungsbeispiel nach FIG 2 ist der Anker 18 als Tauchanker ausgeführt und der Einwirkungsbereich 17 als Mitnehmerbereich.When the switching device is designed as a circuit breaker according to FIG. 2, the moving contact 3 forms an area of action 17 of an armature 18. In the embodiment of FIG. 2, the armature 18 is designed as a submersible anchor and the area of action 17 as a driver area.

Es ist günstig, wenn der Bewegkontakt 3 zumindest im Bereich des Spannhebels 9 eine Struktur in zwei Ebenen aufweist, die durch zumindest eine Brücke verbunden sind, wie es nach einem Ausführungsbeispiel in Zusammenschau mit FIG 3 zu ersehen ist. Ein erstes Strukturteil 19 verläuft in einer Ebene und das andere, zweite Strukturteil 20 in einer anderen Ebene; es bildet den Eingriffskörper 11 als Formteil. Der eigentliche Kontaktbereich mit dem Kontaktstück 14 erstreckt sich zwischen den Ebenen. Die Brücke 21 zwischen den Strukturteilen 19 und 20 kann insbesondere U-förmig ausgebildet sein, wie es aus FIG 6 zu ersehen ist. Insbesondere kann der Eingriffskörper 11 des Bewegkontaktes 3 als Durchzug im zweiten Strukturteil 20 ausgeführt sein. Der Justiersteg 10 des Spannhebels 9 wird unter Druckkraft der Feder 22 gegen den Eingriffskörper 11 im zweiten Strukturteil 20 des Bewegkontakts 3 angedrückt. Die Feder 22 wirkt zugleich als Drehfeder, indem sie sich einerseits gegen die Brücke 21 des Bewegkontakts 3 und andererseits gegen einen Arm des Spannhebels 9 verspannt. Ergänzend kann die Kontaktkraft durch eine weitere Feder 23, die als Drehfeder ausgeführt ist ergänzt werden. Erstes Strukturteil und zweites Strukturteil 19,20, bilden auseinanderliegende Arme zur Aufnahme einer Drehachse 24.It is favorable if the moving contact 3 has a structure in two planes, at least in the area of the tensioning lever 9, which are connected by at least one bridge, as can be seen in conjunction with FIG. 3 according to one exemplary embodiment. A first structural part 19 runs in one plane and the other, second structural part 20 in another plane; it forms the engagement body 11 as a molded part. The actual contact area with the contact piece 14 extends between the levels. The bridge 21 between the structural parts 19 and 20 can in particular be U-shaped, as can be seen from FIG. 6. In particular, the engaging body 11 of the moving contact 3 can be designed as a passage in the second structural part 20. The adjusting web 10 of the clamping lever 9 is pressed against the engagement body 11 in the second structural part 20 of the moving contact 3 under the pressure force of the spring 22. The spring 22 also acts as a torsion spring, in that it clamps on the one hand against the bridge 21 of the moving contact 3 and on the other hand against an arm of the tensioning lever 9. In addition, the contact force can be supplemented by a further spring 23, which is designed as a torsion spring. First structural part and second structural part 19, 20 form arms which are spaced apart for receiving an axis of rotation 24.

Im Ausführungsbeispiel nach FIG 3 weist auch der Spannhebel 9 eine Struktur in zwei Ebenen auf, wobei die beiden Strukturteile 25 und 26 durch eine Brücke 27 miteinander verbunden sind. Der Spannhebel 9 bildet eine Drehachse 24, die zwischen diesen Strukturteilen gehalten ist und den Bewegkontakt 3 führt.In the exemplary embodiment according to FIG. 3, the tensioning lever 9 also has a structure in two planes, the two structural parts 25 and 26 being connected to one another by a bridge 27. The clamping lever 9 forms an axis of rotation 24 which is held between these structural parts and guides the moving contact 3.

Im Ausführungsbeispiel nach FIG 2 bildet das erste Strukturteil 19 des Bewegkontaktes 3 eine Anlage für eine im Walzenkörper 7 des Handbetätigungsorgans 6 geführt Raststange 28. Die Raststange 28 kommt an ihrem Rastende 29 von unten aus der Zeichenebene hoch und liegt in einer Zwischenstellung nach FIG 5 bei der Einschaltbewegung für den Bewegkontakt am ersten Strukturteil 19 des Bewegkontaktes 3 an. Bei der weiteren Einschaltbewegung zur Endstellung nach FIG 2 wird die Raststange zurückgezogen, so daß sie an einem stufenförmigen Profil sprungartig die Schaltkontakte in die Einschaltstellung freigibt. Das stufenförmige Profil der Anlage 30 des ersten Strukturteils 19 des Bewegkontakts 3 ist in den Figuren 2,4 und 5 veranschaulicht. In FIG 4 ist die Offenstellung der Schaltkontakte, in FIG 5 eine Zwischenstellung zum Einschaltvorgang hin und in FIG 2 die Einschaltstellung veranschaulicht. Da die Raststange 28 direkt am Handbedienungsorgan 1 mit seinem Walzenkörper 7 oder einem entsprechenden Hebelarm angelenkt ist, bleiben getriebebedingte Toleranzen ohne Einfluß. Andererseits kann die Raststellung in der Nähe des Festkontaktes 2 ausgeführt werden, so daß toleranzabhängige Bewegungsabläufe weiter verkürzt werden. Die Raststange 28 setzt sich an einer Gehäuserippe 31 im Sinne eines Widerlagers und an der Anlage 30 des Bewegkontakts 3 ab.In the exemplary embodiment according to FIG. 2, the first structural part 19 of the moving contact 3 forms a system for a locking rod 28 which is guided in the roller body 7 of the manual actuating element 6 the switch-on movement for the moving contact on the first structural part 19 of the moving contact 3. During the further switch-on movement to the end position according to FIG. 2, the latching rod is withdrawn, so that it suddenly releases the switch contacts into the switch-on position on a step-shaped profile. The step-shaped profile of the system 30 of the first structural part 19 of the moving contact 3 is illustrated in FIGS. 2, 4 and 5. FIG. 4 shows the open position of the switch contacts, FIG. 5 shows an intermediate position for the switch-on process, and FIG. 2 shows the switch-on position. Since the locking rod 28 is articulated directly on the manual control element 1 with its roller body 7 or a corresponding lever arm, tolerances due to the transmission remain without influence. On the other hand, the latching position can be carried out in the vicinity of the fixed contact 2, so that tolerance-dependent movements are further shortened. The locking rod 28 is deposited on a housing rib 31 in the sense of an abutment and on the system 30 of the moving contact 3.

Es ist günstig, wenn der Bewegkontakt 3 an einem seiner Strukturteile in der Nähe seiner Drehachse 24 einen Lappen 32 nach FIG 7 zum Anschweißen von Leitern, insbesondere Litzenleitern, aufweist. Ein günstiger Aufbau des Bewegkontakts ist aus der Zusammenschau der Figuren 7 und 8 zu ersehen.It is favorable if the moving contact 3 has a tab on one of its structural parts in the vicinity of its axis of rotation 24 32 according to FIG. 7 for welding conductors, in particular stranded conductors. A favorable construction of the moving contact can be seen from the overview of FIGS. 7 and 8.

Ein günstiger Aufbau des Spannhebels 9 ist aus der Zusammenschau der Figuren 9, 10 und 11 zu ersehen. Der Justiersteg 10 nach FIG 9 ist vorteilhaft zur Drehachse 24 hin verbreitert, um der Drehachse 24 genügend Festigkeit innerhalb einer steifen Grundstruktur 33 zu belassen. Mittels einer weiteren Drehachse 34 kann der Spannhebel 9 in die Kinematik der Schalteinrichtung eingebunden werden.A favorable construction of the tensioning lever 9 can be seen from the overview of FIGS. 9, 10 and 11. 9 is advantageously widened towards the axis of rotation 24 in order to leave the axis of rotation 24 with sufficient strength within a rigid basic structure 33. The clamping lever 9 can be integrated into the kinematics of the switching device by means of a further axis of rotation 34.

Claims (13)

  1. A switching device, more particularly a protective switch, such as a protective circuit breaker, at least one switching contact (2, 3) of which is constructed as a movable contact (3), which is movable via kinematics (4), can form part of a locking cam (5), is connected to a manual actuating member (6) and whose contact wear can be compensated by means of an adjustable excess stroke,
    characterised in that in the kinematic system (4) a member cooperates as a tensioning lever (9) with the movable contact (3), in that the tensioning lever (9) or movable contact (3) comprises a deflectable web acting as an adjusting web (10) in a rigid base structure (33), the adjusting web resting by means of an engagement element (11) against an associated bearing edge (12) when the contacts (2, 3) are in the open position.
  2. A switching device according to claim 1,
    characterised in that the engagement element (11) is constructed as a moulded part of the movable contact (3).
  3. A switching device according to claim 2,
    characterised in that the tensioning lever (9) guides the movable contact (3) about a pivot axis (24), the movable contact (3) extending on either side of its pivot axis (24) with two limbs, one of which comprises the contact point of the contact element (14) and the other limb forming the engagement element (11) for engaging with the adjusting web (10) of the tensioning lever (9).
  4. A switching device according to claim 2 constructed as a protective switch, characterised in that the movable contact (3) forms a region of action (17) for an armature (18).
  5. A switching device according to claim 4,
    characterised in that the movable contact (3) forms a driving region as an area of action (17) for a plunger-type armature.
  6. A switching device according to claim 2,
    characterised in that the movable contact (3) comprises a structure having two planes at least in the region of the tensioning lever (9), which planes are connected by at least one bridge (21), a first structural part (19) extending in one plane and the other, second structural part (20) in the other plane forming the engagement element as a moulded part for resting against the adjusting web (10) of the tensioning lever (9).
  7. A switching device according to claim 6,
    characterised in that the bridge (21) is U-shaped.
  8. A switching device according to claim 6,
    characterised in that the engagement element (11) of the movable contact (3) for resting against the adjusting web (10) of the tensioning lever (9) is constructed as a recessed lug in the second structural part (20), against which lug the tensioning lever (9) is pressed under spring force.
  9. A switching device according to claim 8,
    characterised in that the tensioning lever comprises a structure in two planes, the two structural parts (25, 26) being connected by a bridge (27), and the tensioning lever (9) guiding the movable contact (3) about a pivot axis (24), which is held between these structural parts, the compression spring (22) acting upon the pivot axis (24) bringing the recessed lug in the structural part of the movable contact (3) into abutment with the adjusting web (10) of the tensioning lever.
  10. A switching device according to claim 9,
    characterised in that the compression spring (22) is simultaneously constructed as a torsion spring, which braces the tensioning lever (9) and movable contact (3) and generates the contact force.
  11. A switching device according to claim 10,
    characterised in that a second torsion spring (23) is arranged on the pivot axis (24), which braces the tensioning lever (9) and the movable contact (3) and which, together with the first rotary spring (22) simultaneously acting as a compression spring, generates the contact force.
  12. A switching device according to claim 6 or one of claims 7 to 11, characterised in that the first structural part (19) of the movable contact (3) forms an abutment (30) for a locking rod (28), which is articulatedly connected to the manual actuating member (6) and effects a locking position for the movable contact (3) on its path of engagement with the fixed contact, which locking position is released by the locking rod (28) prior to the end of the engagement movement.
  13. A switching device according to claim 6,
    characterised in that, on one of its structural parts (19, 20) in the vicinity of its pivot axis (24), the movable contact (3) forms a lug (32), to which conductors can be welded.
EP93104531A 1993-03-19 1993-03-19 Switching device, in particular circuit breaker Expired - Lifetime EP0616351B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP93104531A EP0616351B1 (en) 1993-03-19 1993-03-19 Switching device, in particular circuit breaker
ES93104531T ES2088804T3 (en) 1993-03-19 1993-03-19 SWITCHING DEVICE, ESPECIALLY PROTECTION SWITCH.
AT93104531T ATE138760T1 (en) 1993-03-19 1993-03-19 SWITCHING DEVICE, IN PARTICULAR CIRCUIT BREAKERS
DE59302753T DE59302753D1 (en) 1993-03-19 1993-03-19 Switching device, in particular circuit breakers
TR00159/94A TR27419A (en) 1993-03-19 1994-02-15 Switching equipment, especially protection switch.
IL10870294A IL108702A (en) 1993-03-19 1994-02-18 Protective circuit breaker
IL10874694A IL108746A (en) 1993-03-19 1994-02-23 Switching device especially a protective circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93104531A EP0616351B1 (en) 1993-03-19 1993-03-19 Switching device, in particular circuit breaker

Publications (2)

Publication Number Publication Date
EP0616351A1 EP0616351A1 (en) 1994-09-21
EP0616351B1 true EP0616351B1 (en) 1996-05-29

Family

ID=8212717

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93104531A Expired - Lifetime EP0616351B1 (en) 1993-03-19 1993-03-19 Switching device, in particular circuit breaker

Country Status (6)

Country Link
EP (1) EP0616351B1 (en)
AT (1) ATE138760T1 (en)
DE (1) DE59302753D1 (en)
ES (1) ES2088804T3 (en)
IL (2) IL108702A (en)
TR (1) TR27419A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19743037A1 (en) * 1997-09-30 1999-04-01 Siemens Ag Protective circuit-breaker esp. automatic cut-out
DE102010019033B4 (en) * 2010-05-03 2012-02-23 Abb Ag Electrical service switching device
CN104900453B (en) * 2015-05-28 2017-05-10 温州锐能电器有限公司 Residual-current circuit breaker

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ES2088804T3 (en) 1996-09-16
EP0616351A1 (en) 1994-09-21
IL108702A (en) 1998-08-16
ATE138760T1 (en) 1996-06-15
IL108746A (en) 1997-02-18
DE59302753D1 (en) 1996-07-04
IL108746A0 (en) 1994-05-30
IL108702A0 (en) 1994-05-30
TR27419A (en) 1995-04-14

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