PatentDe  


Dokumentenidentifikation EP1356484 10.05.2007
EP-Veröffentlichungsnummer 0001356484
Titel VERRIEGELUNGSEINRICHTUNG FÜR STROMUNTERBRECHER
Anmelder ABB Service S.r.l., Mailand/Milano, IT
Erfinder AZZOLA, Lucio, I-24100 Bergamo, IT;
CARRARA, Osvaldo, I-24020 Casnigo, IT
Vertreter derzeit kein Vertreter bestellt
DE-Aktenzeichen 60127584
Vertragsstaaten AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LI, LU, MC, NL, PT, SE, TR
Sprache des Dokument EN
EP-Anmeldetag 11.12.2001
EP-Aktenzeichen 019880236
WO-Anmeldetag 11.12.2001
PCT-Aktenzeichen PCT/EP01/14694
WO-Veröffentlichungsnummer 2002050853
WO-Veröffentlichungsdatum 27.06.2002
EP-Offenlegungsdatum 29.10.2003
EP date of grant 28.03.2007
Veröffentlichungstag im Patentblatt 10.05.2007
IPC-Hauptklasse H01H 9/26(2006.01)A, F, I, 20051017, B, H, EP
IPC-Nebenklasse H01H 9/28(2006.01)A, L, I, 20051017, B, H, EP   

Beschreibung[en]

The present invention relates to an interlocking device for low-voltage automatic circuit breakers, i.e., having operating voltages of up to approximately 1000 volts, with improved functions and characteristics.

Generally, low-voltage industrial electrical systems in which high-value currents, and therefore high power levels, are involved normally use specific devices, commonly known in the art as automatic or power circuit breakers.

Said circuit breakers typically operate with DC or AC currents whose nominal value, depending on the applications, can vary over a wide range, typically from fractions of an ampere to several thousand amperes, and are conceived so as to provide a series of basic performance features in order to ensure the correct operation of the electrical system in which they are inserted and of the loads connected thereto.

In particular, they protect the loads from abnormal events caused by short-circuit faults or due to overloads by automatically opening the power supply circuit; they allow the correct insertion/disconnection of loads in/from the circuit; they ensure that the nominal current for the various connected users is truly equal to the required current; they allow, by manual intervention on a lever for the actuation of said circuit breaker and the corresponding separation of the movable contacts from the fixed contacts, the complete isolation of a load with respect to a power source and the consequent disconnection of the circuit that said circuit breakers protect.

In many practical applications, for example in use in automated industrial electrical systems, circuit breakers are required to perform additional functions that are auxiliary with respect to the basic ones that they normally perform; for this purpose, they are equipped with appropriate accessory devices that vary according to the type of auxiliary function to be performed.

One auxiliary function that is typically required in certain practical applications is known in the art as interlocking of two or more circuit breakers; this function is used when there are two or more electric circuits that operate in parallel to each other and cannot be closed simultaneously. For example, in the case of two electric circuits, the open condition of one of the two circuits while the other one is closed is maintained by acting manually on an appropriate interlocking device that is operatively associated with two circuit breakers, each inserted in the corresponding circuit; this device acts on the opening/closure mechanism of the circuit breaker associated with the circuit that must remain open and prevents any further movement thereof until further operator intervention occurs.

In the current state of the art, interlocking devices of the known type, despite adequately providing the required functional performance, have drawbacks and disadvantages.

In particular, a significant drawback of interlocking devices of the known art is the fact that in their typical form of application they are installed by fixing them directly to the front part or sides of the circuit breakers associated therewith. With this solution, it is therefore necessary to perforate, or even disassemble, the body of the circuit breakers and connect the device to the circuit breakers by using fixing means such as screws or pins that pass through the body of the circuit breakers and mate with them. This entails increased involvement and operating difficulties for workers, with a negative impact in terms of times and costs; moreover, the operations for perforation and for insertion of the fixing means can damage the circuit breakers and in any case entail a deterioration of active and/or structural parts during the useful lifetime of said circuit breakers. Moreover, with this conventional solution the means for fixing the interlocking device to the circuit breakers can be accessed directly even when one of the circuit breakers is closed; in this case, therefore, an inappropriate intervention on the part of an operator might lead to tampering with the interlocking device, with negative consequences as regards general safety conditions.

Moreover, solutions are known in the art in which at least one of the components of the interlocking device is fixed to the mounting plate on the opposite side with respect to the side on which the circuit breakers are mounted; these solutions entail an increase in volume and space occupation requirements and in any case generally require the use of components that pass through the body of the circuit breakers and interact with their mechanisms.

Finally, at least some of the known types of interlocking device cannot be used with circuit breakers having mutually different sizes.

One example of a known device suitable for interlocking a couple of circuit breakers which are mounted horizontally on a supporting plate is disclosed in US patent no. 6,043,439.

The aim of the present invention is to provide a device for interlocking at least two circuit breakers that allows to obviate the drawbacks of the known art and in particular can be installed in a simplified manner and at the same time provides improved functional performance with respect to devices of the known type.

Within this aim, an object of the present invention is to provide a device for interlocking at least two circuit breakers that allows to avoid, during installation, interventions on the body of said circuit breakers, so as to prevent any damage thereto and/or avoid contributing, during their useful lifetime, to degradation of active and/or structural parts thereof.

Another object of the present invention is to provide a device for interlocking at least two circuit breakers that has, with respect to devices of the known type, a structure that is more compact and can also be used with circuit breakers of different sizes.

Another object of the present invention is to provide a device for interlocking at least two circuit breakers that allows to improve the general safety conditions of the entire electrical system in which it is used, eliminating completely or at least minimizing the possibilities of tampering, particularly when one of the circuit breakers is in the closed position.

Another object of the present invention is to provide a device for interlocking at least two circuit breakers that allows to reduce the difficulties and involvement faced by installation engineers, with a consequent benefit in terms of times and costs.

Another object of the present invention is to provide a device for interlocking at least two circuit breakers that is highly reliable, relatively easy to manufacture and at competitive costs.

This aim and these and other objects that will become better apparent hereinafter are achieved by a device for interlocking at least two single- or multipole circuit breakers, of which:

  • -- a first circuit breaker having an enclosure that contains, for each pole, at least one fixed contact and one movable contact that can be operatively coupled/uncoupled with respect to each other, actuation means suitable to provide the energy required to move the movable contacts, and a first opening/closure lever that protrudes outside said enclosure;
  • -- a second circuit breaker having an enclosure that contains, for each pole, at least one fixed contact and one movable contact that can be operatively coupled/uncoupled with respect to each other, actuation means suitable to provide the energy required to move the movable contacts, and a second opening/closure lever that protrudes outside said enclosure; the device comprising at least:
    • -- a first supporting bracket, suitable to be fixed to a mounting plate of said first and second circuit breakers;
    • -- a second bracket, suitable to be fixed by virtue of fixing means to said first bracket and to be supported thereby; characterized in that it further comprises
    • -- an interlocking element provided with a contoured body that is operatively coupled to said second bracket so that it can move with respect to and guided by it, said interlocking element being suitable to be rigidly connected to the second bracket, by virtue of locking means, in a chosen position in which it interacts operatively with at least said first opening/closure lever in a condition that corresponds to the opening of the first circuit breaker, preventing its movement and preventing the circuit breakers from being closed simultaneously.

In this manner, one has the advantage that the interlocking device according to the invention is mounted directly on the mounting plate of the circuit breakers and allows to lock at least one of them in the open position, by acting on the opening/closure lever and therefore externally with respect to the enclosure, without having to perforate or disassemble the body of the circuit breakers.

Further characteristics and advantages of the invention will become better apparent from the description of a preferred but not exclusive embodiment of an interlocking device according to the invention, illustrated only by way of non-limitative example with the aid of the accompanying drawings, wherein:

  • Figure 1 is a perspective view of a supporting bracket used in the device according to the invention;
  • Figure 2 is a perspective view of a second bracket and of an interlocking element, coupled to each other and used in the device according to the invention;
  • Figure 3 is a perspective view of a covering element used in the device according to the invention;
  • Figure 4 is a perspective view of the elements of Figures 1 and 2 during installation with a pair of automatic circuit breakers;
  • Figure 5 is a view of the interlocking device according to the invention, operatively associated with a pair of automatic circuit breakers in the open position;
  • Figure 6 is a view of another embodiment of a device according to the invention, for interlocking three circuit breakers;
  • Figure 7 is a view of a covering element that can be used in the device of Figure 6.

With reference to the above cited figures, the interlocking device according to the invention comprises a first supporting bracket 1 that is suitable to be fixed to a mounting plate 50 of at least one pair of single- or multipole circuit breakers 60, shown in detail in Figures 4-6; in particular, Figures 4 and 5 illustrate a pair of multipole automatic circuit breakers 60, whereas Figure 6 shows three circuit breakers 60. Said circuit breakers 60, according to embodiments that are widely known in the art and therefore are not illustrated in detail, comprise, also in the single-pole version, an enclosure 61 that contains, for each pole, at least one fixed contact and one movable contact that can be operatively coupled/uncoupled with respect to each other, actuation means suitable to provide the energy required to move the movable contacts and produce their coupling/uncoupling with respect to the corresponding fixed contacts, and an opening/closure lever 62 that protrudes outside said enclosure 61.

In the embodiment of the interlocking device according to the invention, the supporting bracket 1 has at least one first surface that is provided with a hole suitable to accommodate means for fixing to the mounting plate 50, at least one second surface that is arranged transversely to the first surface and forms at least one supporting surface for a second bracket designated by the reference numeral 10 in Figure 2, and at least one third surface that protrudes transversely from the second surface and is provided with holes suitable to receive means, typically screws, for fixing to the second bracket 10.

In particular, as shown in detail in Figure 1, the supporting bracket 1 preferably comprises a first end portion and a second end portion that are L-shaped when viewed laterally, each one of the short arms 2 of the L-shape being provided with a hole 3 for fixing to the plate 50, the long arms 4 being parallel to each other; furthermore, the bracket 1 has a third portion that connects the long sides 4 of the first and second portions. Said third portion, viewed laterally, is substantially shaped like a square wave, with first and second walls 5 that protrude at right angles from the corresponding long arms 4, third and fourth walls 6 that protrude at right angles from the walls 5 and form the sides of the square waves, and a fifth wall 7 that mutually connects the walls 6 and is perpendicular thereto; the wall 7 constituted the base wall of the square wave and is provided with holes 8 for fixing to the second bracket 10.

In turn, the second bracket 10 has at least one surface for contact with the supporting bracket 1 and at least one second surface in which there are holes suitable to receive means for fixing to said first bracket 1 and to a covering element, designated by the reference numeral 30 in Figure 3; the bracket 10 is furthermore provided with means for guiding an interlocking element, designated by the reference numeral 20 in Figure 2, for the purposes described hereinafter.

In the embodiment illustrated in Figure 2, the bracket 10 also preferably has first and second end portions which, when viewed laterally, are L-shaped, with short arms 12 arranged so as to converge toward each other and long arms 13 arranged parallel to each other, and a third portion that mutually connects the long arms 13. Said third portion of the second bracket 10, when viewed laterally, is also substantially shaped like a square wave, with first and second walls 14 that protrude at right angles from the corresponding long arms 13, third and fourth walls 15 that protrude at right angles from the walls 14 and form the sides of the square wave, and a fifth wall 16 that constitutes the central wall of the square wave and mutually connects the walls 15. The side walls 15 are provided with holes 17 for fixing to the covering element 30, while the central wall 16 is provided with additional holes (not shown in the figure) for fixing to the first supporting bracket 1; furthermore, on the central wall 16 and on the opposite side with respect to the side walls 15 there are preferably two pairs of protruding hooks 18 that are arranged so as to face each other and mate with corresponding edges of the interlocking element 20, so as to facilitate its guided sliding for the purposes described hereinafter, and there is a protruding wall 21, shown only partially in Figure 2, that is provided with holes suitable to receive means, typically a lock, for locking with respect to the covering element 30.

As shown in Figure 2, the interlocking element 20 has preferably a substantially rod-like body that has, in a substantially central position, means 22 for gripping said body, and two holes 23 suitable to facilitate the passage of the screws for fixing the first supporting bracket 1 to the second bracket 10; furthermore, the element 20 is provided with a protruding wall 24 that has holes 25, protrudes from the rod-like body substantially at right angles thereto, and is suitable to couple to the protruding wall 21 by virtue of the locking means.

As shown in Figure 3, the covering element 30 has preferably a plate-like body with edges 31 that are folded with respect to the central portion 32 of said body; in said central portion 32 there is a cutout 33, suitable to accommodate the means 22 for gripping the bracket 10, and there are two openings 34, arranged on opposite sides with respect to the cutout 33 and each suitable to accommodate a lever 62 for opening/closing one of the two circuit breakers 60. Furthermore, in the central portion 32 there is at least one slot 35 that is suitable to accommodate the protruding walls 21 and 24, and on at least one pair of the folded edges 31 there are holes 36 suitable to accommodate means, typically screws, for fixing to the second bracket 10.

The assembly and practical use of the interlocking device according to the invention are now described with particular reference to Figures 4 and 5.

First of all, the supporting bracket 1 is fixed to the mounting plate 50 so that the short arms 2 that are fixed to the plate 50 diverge from each other, by virtue of screws 37 that engage the holes 3, and so that the long arms 4 are parallel and protrude away from the plate 50; advantageously, in the embodiment of the device according to the invention, the supporting bracket 1 is mounted on the same face of the plate 50 on which the two circuit breakers 60 are mounted and is interposed between them. Then the second bracket 10 is coupled to the interlocking element 20. In particular, the interlocking element 20 is operatively coupled to the second bracket 10, so that it can move with respect to it, by virtue of the pairs of hooks 18 that engage two opposite edges of said interlocking element 20; in this manner, the pairs of hooks 18 constitute, for the interlocking element 20, two rails that facilitate its guided sliding with respect to the bracket 10. The resulting assembly constituted by the bracket 10 and the element 20 is coupled to the supporting bracket 1, so that the bracket 10 surrounds the bracket 1 and is supported thereby; in particular, the bracket 10 is arranged so that its short arms 12 rest on the long arms 4 and so that the walls 14-16 of the square wave-shaped portion mate geometrically with the correspondingly complementarily shaped walls 5-7 of the square wave-shaped portion of the bracket 1. Then the bracket 10 is fixed to the supporting bracket 1 by virtue of screws that pass through the holes 23 of the element 10 and engage the holes 8 of the bracket 1 and the holes formed in the wall 16 of the bracket 10. Finally, as shown in Figure 5, the covering element 30 is arranged by fixing it to the second bracket 10, so that the grip means 22 are accommodated in the cutout 33, the two levers 62 are accommodated in the corresponding openings 34, and the protruding walls 21 and 24 pass through the slot 35; the covering element 30 is fixed to the bracket 10 by virtue of screws 38 that engage the holes 36 and 17. In this manner, the element covers the screws for mutually fixing the two brackets 1 and 10 and prevents direct access thereto.

Once the various components of the interlocking device have been assembled, an operator can act on the grip means 22, making the element 20 slide with respect to the brackets 1 and 10 until it is arranged alternately in a first position, in which a first end surface of its body interacts with a first opening/closure lever 62, preventing its movement when the corresponding circuit breaker 60 is open, or in a second position, in which a second end surface of its body interacts with the other opening/closure lever 62, preventing its movement when the second circuit breaker is open, or in a third position, shown in Figure 5, in which the two end surfaces interact with both opening/closure levers 62, preventing their movement, when the circuit breakers 60 are open. In this manner, the interlocking element 20 interacts operatively with at least one of the two opening/closure levers 62, preventing the movement thereof and preventing the circuit breakers 60 from being closed simultaneously. Once the intended position has been reached, the element 20 is rigidly locked to the bracket 10 by means of a padlock, not shown, which engages the holes formed in the protruding walls 21 and 24.

In practice it has been found that the interlocking device according to the invention fully achieves the intended aim and objects, allowing to obviate the drawbacks of the prior art and providing a significant series of advantages.

In fact, as mentioned, the device according to the present invention, by virtue of the structure and operation of its constructive components, allows to perform the interlocking function in an extremely effective manner, without requiring interventions to perforate or disassemble the body of the circuit breakers and with consequent benefits in terms of difficulty, times and costs of intervention of workers, also avoiding damage to the circuit breakers or any contribution to their degradation. Furthermore, the fact that the device is installed on the circuit breaker mounting plate, on the same face on which said circuit breakers are arranged and so that the bracket 1 is interposed between them, allows to have a configuration that is compact, has a smaller space occupation than known types of device, and is aesthetically improved. This, as an additional advantage, leads to the fact that indeed by virtue of its constructive compactness interventions on the degree of protection of the circuit breaker-device assembly are greatly facilitated.

The presence of the covering element 30, which covers the means for mutually fixing the two brackets 1 and 10 and prevents access to them, allows to exclude or at least considerably limit the possibility of inappropriate interventions that tamper with the device, consequently improving general safety conditions. Furthermore, by virtue of its constructive structure, the device allows to lock both circuit breakers in the open position and can also be used with circuit breakers of mutually different sizes, without requiring particular structural modifications of its components or variations during their installation.

Moreover, one cannot ignore the fact that the device thus conceived can be used easily even if more than two circuit breakers are to be interlocked. A constructive example is shown, in this regard, in Figure 6, in which there are three circuit breakers 60. In this case, the device uses two supporting brackets 1, each mounted on the plate 50 interposed between two contiguous circuit breakers 60; a bracket 10 and an interlocking element 20 are then coupled to each one of these brackets 1. The entire assembly is completed by using a covering element 30 which, as shown in Figure 7, with respect to the solution with two circuit breakers has a second cutout 33 for coupling to the grip means of the second interlocking element 20, an additional cutout 34 for coupling to the lever for opening/closing the third circuit breaker, and a second slot 35 for coupling to the protruding walls 21 and 24 of the second bracket 10 and of the second interlocking element 20. Accordingly, an additional aspect of the present invention is constituted by a device for interlocking three single- or multipole circuit breakers, namely:

  • -- a first circuit breaker and a second circuit breaker 60 as described above;
  • -- a third circuit breaker 60, having an enclosure 61 that contains, for each pole, at least one fixed contact and one movable contact that can be mutually operatively coupled/uncoupled, actuation means suitable to provide the energy required to move the movable contacts, and an opening/closure lever 62 that protrudes outside said enclosure;
characterized in that it comprises at least:
  • -- a first and a second supporting bracket 1;
  • -- a first and a second bracket 10, each coupled to a corresponding bracket 1;
  • -- a first and a second interlocking element 20, each coupled to a bracket 10; and
  • -- a covering element 30, which has a plate-like body with folded edges, first and second cutouts being formed in the central part of said plate-like body and being suitable to accommodate respectively the grip means of said first and second interlocking elements, three openings arranged in pairs on opposite sides with respect to the cutouts and suitable to accommodate the corresponding levers for opening/closing the circuit breakers, and at least one first and second slot that are suitable to accommodate said first and second protruding walls of the supporting brackets and of the interlocking elements, holes being furthermore provided on said folded edges so as to accommodate means for fixing to said first and second brackets.

The device thus conceived is susceptible of modifications and variations, all of which are within the scope of the inventive concept; all the details may furthermore be replaced with technically equivalent elements. In practice, the materials used, so long as they are compatible with the specific use, as well as the dimensions, may be any according to requirements and to the state of the art.


Anspruch[de]
Vorrichtung zum Verriegeln von zumindest zwei ein- oder mehrpoligen Leistungsschutzschaltern (60) mit: - einem ersten Leistungsschutzschalter (60) mit einer Umhüllung (61), die für einen jeden Pol zumindest einen feststehenden Kontakt und einen beweglichen Kontakt enthält, die in Bezug zu einander wirksam gekoppelt / entkoppelt werden können, Betätigungseinrichtungen, die die zum Bewegen der beweglichen Kontakte erforderliche Energie bereitstellen, und einen ersten Öffnungs- /Schließhebel (62), der außerhalb der Umhüllung (61) hervorsteht; - eine zweiten Leistungsschutzschalter (60) mit einer Umhüllung (61), die für jeden Pol zumindest einen feststehenden Kontakt und einen beweglichen Kontakt enthält, die in Bezug zueinander wirksam gekoppelt / entkoppelt werden können, Betätigungseinrichtungen, die die zum Bewegen der beweglichen Kontakte erforderliche Energie bereitstellen, und einen zweiten Öffnungs- /Schließhebel (62), der außerhalb der Umhüllung (61) vorsteht; wobei die Vorrichtung zumindest folgende Merkmale aufweist: - eine erste Traghalterung (1), die geeignet ist, um an einer Montageplatte (50) der ersten und zweiten Leistungsschutzschalter (60) befestigt zu werden; - eine zweite Halterung (10), die geeignet ist, um mittels Befestigungsmittel an der ersten Halterung (1) befestigt zu werden und dadurch getragen zu werden; dadurch gekennzeichnet, dass sie ferner folgende Merkmale aufweist: - ein Verriegelungselement (20), das mit einem konturierten Körper versehen ist, der wirksam mit der zweiten Halterung (10) gekoppelt ist, so dass es sich in Bezug auf dasselbe bewegen und dadurch geführt werden kann, wobei das Verriegelungselement (20) geeignet ist, um mit der zweiten Halterung (10) starr verbunden zu werden mittels einer Verriegelungseinrichtungen in einer ausgewählten Position, in der sie mit zumindest dem ersten Öffnungs- / Schließhebel (62) in einem Zustand wirksam interagiert, der der Öffnung des ersten Leistungsschutzschalters (60) entspricht, wobei dessen Bewegung verhindert wird und verhindert wird, dass die Leistungsschutzschalter gleichzeitig geschlossen werden. Unterbrechungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Verriegelungselement (20) in einer gleitend geführten Weise mit der zweiten Halterung (10) gekoppelt ist und mit derselben mittels der Verriegelungseinrichtungen starr verbunden sein kann, entweder in einer ersten Position, in der eine erste Endoberfläche mit dem ersten Öffnungs- / Schließhebel (62) interagiert, wobei deren Bewegung verhindert wird, wenn der erste Leistungsschutzschalter (60) offen ist, oder in einer zweiten Position, in der eine zweite Endoberfläche mit dem zweiten Öffnungs- / Schließhebel (62) interagiert, wobei deren Bewegung verhindert wird, wenn der zweite Leistungsschutzschalter (60) offen ist; oder in einer dritten Position, in der die ersten und zweiten Endoberflächen mit den ersten und zweiten Öffnungs- /Schließhebeln (62) interagieren, wobei deren Bewegung verhindert wird, wenn die ersten und zweiten Leistungsschutzschalter (60) offen sind. Verriegelungsvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sie ein Abdeckelement (30) aufweist, das geeignet ist, um an der zweiten Halterung (10) befestigt zu werden, um die Mittel zum Befestigen der ersten Halterung (1) an der zweiten Halterung (10) abzudecken und einen direkten Zugriff auf dieselben zu verhindern. Verriegelungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die erste Traghalterung (1) und die ersten und zweiten Leistungsschutzschalter (60) auf der gleichen Fläche der Platte (50) mit der ersten Halterung (1), die zwischen zwei Leistungsschutzschaltern (60) angeordnet ist, befestigt sind. Verriegelungsvorrichtung nach einem der vorhergehenden Ansprüche, die dadurch gekennzeichnet sind, dass die erste Traghalterung (1) zumindest eine erste Oberfläche aufweist, die mit einer Öffnung (3) versehen ist, die geeignet ist, um Mittel zum Befestigen an der Montageplatte (60) unterzubringen, zumindest eine zweite Oberfläche, die quer zu der ersten Oberfläche angeordnet ist und zumindest eine Tragoberfläche für die zweite Halterung (10) bildet, und zumindest eine dritte Oberfläche, die quer von der zweiten Oberfläche absteht und mit Öffnungen (8) versehen ist, die geeignet sind, um Mittel zum Befestigen der zweiten Halterung aufzunehmen. Verriegelungsvorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die erste Halterung (1) einen ersten Endabschnitt und einen zweiten Endabschnitt aufweist, die L-förmig sind, wobei die kurzen Arme (2) der L-Form perforiert und an der Platte (50) befestigt sind, so dass sie einander annähern, wobei die langen Arme (4) parallel zueinander angeordnet sind und von der Platte (50) entfernt ausgerichtet sind, und einen dritten Abschnitt, der im Wesentlichen wie eine viereckige Welle geformt ist und die langen Arme (4) des ersten und des zweiten Abschnitts verbindet, wobei die mittlere Wand (7) der viereckigen Welle im Wesentlichen parallel zu den kurzen Seiten (2) angeordnet ist und mit Öffnungen (8) zum Befestigen der zweiten Halterung (10) versehen ist. Verriegelungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die zweite Halterung (10) zumindest eine Oberflächen für einen Kontakt mit der ersten Halterung (1) aufweist, zumindest eine zweite Oberfläche, in der Öffnungen vorhanden sind, die geeignet sind, um Mittel zum Befestigen an der ersten Halterung (1) und an dem Abdeckelement (30) aufzunehmen, und Mittel zum Führen des Verriegelungselements (20). Verriegelungsvorrichtung nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass die zweite Halterung (10) vierte und fünfte L-förmige Endabschnitte aufweist, bei denen die kurzen Arme (12) so angeordnet sind, dass sie sich einander annähern und auf den langen Armen (4) der ersten und zweiten Abschnitte ruhen und die langen Arme (13) parallel zu und von der Platte (50) weggerichtet sind, und einen sechsten Abschnitt, der wie eine viereckige Welle geformt ist und geometrisch mit den ergänzend geformten Wänden des dritten Abschnitts zusammenpasst, wobei die Seitenwände (15) des sechsten viereckigen Wellenabschnitts mit Öffnungen (17) versehen sind zum Befestigen an dem Abdeckelement (30), wobei die mittlere Wand (16) mit Öffnungen zum Befestigen an der ersten Traghalterung (1) versehen ist. Verriegelungsvorrichtung nach einem oder mehreren Ansprüchen 5 bis 8, dadurch gekennzeichnet, dass die zweite Halterung (10) ferner auf der mittleren Wand (16) des sechsten, viereckigen Wellenabschnitts und auf der gegenüberliegenden Seite in Bezug auf die Seitenwände (15) vorstehende Haken (18) aufweist, die einander gegenüberliegen und mit entsprechenden Kanten des Verriegelungselements (20) zusammenpassen, um deren geführte Gleitbewegung und anschließende Positionierung in der beabsichtigen Position zu vereinfachen, wobei eine erste vorstehende und perforierte Wand (21) ferner von der Endwand absteht, die im Wesentlichen im rechten Winkel zu derselben angeordnet ist und geeignet ist, um Mittel zum Verriegeln mit dem Abdeckelement (30) aufzunehmen. Verriegelungsvorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Verriegelungselement (20) einen stabartigen Körper aufweist, der in einer im Wesentlichen mittleren Position Mittel (22) zum Ergreifen des Körpers aufweist und zwei Öffnungen (23) aufweist, die geeignet sind, um die Durchführung der Mittel zum gegenseitigen Befestigen der ersten und zweiten Halterungen (1, 10) zu vereinfachen, wobei eine zweite vorstehende und perforierte Wand (24) von dem stabartigen Körper absteht, der im Wesentlichen im rechten Winkel zu derselben absteht, wobei die zweite Wand (24) geeignet ist, um mit der ersten vorstehenden und perforierten Wand (21) mittels der Verriegelungsmittel zusammenzupassen. Verriegelungsvorrichtung nach einem oder mehreren der Ansprüche 3 bis 10, dadurch gekennzeichnet, dass das Abdeckelement (30) einen plattenartigen Körper mit gefalteten Kanten (31) in dem mittleren Teil (32) aufweist, von dem ein Ausschnitt (33) vorhanden ist, um die Greifeinrichtung (22) unterzubringen, und zwei Öffnungen (34) vorhanden sind, die auf gegenüberliegenden Seiten in Bezug auf den Ausschnitt (33) angeordnet und geeignet sind, um die ersten und zweiten Öffnungs- /Schließhebel (62) unterzubringen, und zumindest einen Schlitz (35), der geeignet ist, um die ersten und zweiten vorstehenden und perforierten Wände (21, 24) unterzubringen, wobei Öffnungen (36) ferner auf den gefalteten Kanten (31) vorgesehen sind und geeignet sind, Mittel zum Befestigen der zweiten Halterung (10) unterzubringen. Vorrichtung zum Verriegeln von zumindest drei ein- oder mehrpoligen Leistungsschutzschaltern, mit: - einem ersten Leistungsschutzschalter (60) nach Anspruch 1; - einem zweiten Leistungsschutzschalter (60) nach Anspruch 1; - einem dritten Leistungsschutzschalter (60) mit einer Umhüllung (61), die für jeden Pol zumindest einen feststehenden Kontakt und einen beweglichen Kontakt enthält, die in Bezug aufeinander wirksam gekoppelt / entkoppelt werden können, Betätigungseinrichtungen, die geeignet sind, um die zum Bewegen der beweglichen Kontakte erforderliche Energie zuzuführen, und einen dritten Öffnungs- / Schließhebel (62), der außerhalb der Umhüllung (61) vorsteht; wobei die Vorrichtung folgende Merkmale aufweist: - eine erste Traghalterung (1) nach einem oder mehreren der vorhergehenden Ansprüche; - eine zweite Halterung (10) nach Anspruch 9 - ein erstes Verriegelungselement (20) nach Anspruch 10, dadurch gekennzeichnet, dass es ferner folgende Merkmale aufweist: - eine weitere erste Traghalterung (1) nach einem oder mehreren der vorhergehenden Ansprüche; - eine weitere zweite Halterung (10) nach Anspruch 9, - ein zweites Verriegelungselement (20) nach Anspruch 10 - ein Abdeckelement (30), das einen plattenartigen Körper mit gefalteten Kanten (31) aufweist, dessen mittlerer Abschnitt (32) mit einem ersten Ausschnitt und einem zweiten Ausschnitt (33) versehen ist, die geeignet sind, um jeweils die Greifeinrichtungen (22) der ersten und zweiten Verriegelungselemente (20) unterzubringen, drei Öffnungen (34), die in Paaren auf gegenüberliegenden Seiten in Bezug auf die Ausschnitte (33) angeordnet sind und die jeweils geeignet sind, um einen entsprechenden Öffnungs - / Schließhebel (62) des ersten, zweiten und dritten Leistungsschutzschalters (60) unterzubringen, und zumindest ein erster Schlitz und ein zweiter Schlitz (35), die geeignet sind, um die ersten (21) und zweiten vorstehenden und perforierten Wände (24) der zweiten Halterungen (10) und der Verriegelungselemente (20) unterzubringen, wobei Öffnungen (36) ferner auf den gefalteten Kanten (31) vorgesehen sind, um Mittel zum Befestigen des Abdeckelements (30) an den zweiten Halterungen (10) unterzubringen.
Anspruch[en]
A device for interlocking at least two single- or multipole circuit breakers (60), of which: -- a first circuit breaker (60) having an enclosure (61) that contains, for each pole, at least one fixed contact and one movable contact that can be operatively coupled/uncoupled with respect to each other, actuation means suitable to provide the energy required to move the movable contacts, and a first opening/closure lever (62) that protrudes outside said enclosure (61); -- a second circuit breaker (60) having an enclosure (61) that contains, for each pole, at least one fixed contact and one movable contact that can be operatively coupled/uncoupled with respect to each other, actuation means suitable to provide the energy required to move the movable contacts, and a second opening/closure lever (62) that protrudes outside said enclosure (61); the device comprising at least: -- a first supporting bracket (1), suitable to be fixed to a mounting plate (50) of said first and second circuit breakers (60); -- a second bracket (10) suitable to be fixed by virtue of fixing means to said first bracket (1) and to be supported thereby; characterized in that it further comprises: -- an interlocking element (20) provided with a contoured body that is operatively coupled to said second bracket (10) so that it can move with respect to and being guided by it, said interlocking element (20) being suitable to be rigidly connected to the second bracket (10), by virtue of locking means, in a chosen position in which it interacts operatively with at least said first opening/closure lever (62) in a condition that corresponds to the opening of the first circuit breaker (60), preventing its movement and preventing the circuit breakers from being closed simultaneously. An interlocking device according to claim 1, characterized in that said interlocking element (20) is coupled in a slidingly guided manner to said second bracket (10) and can be rigidly connected thereto, by virtue of said locking means, either in a first position, in which a first end surface interacts with said first opening/closure lever (62), preventing its movement when the first circuit breaker (60) is open, or in a second position, in which a second end surface interacts with said second opening/closure lever (62), preventing its movement when the second circuit breaker (60) is open, or in a third position, in which said first and second end surfaces interact with said first and second opening/closure levers (62), preventing their movement, when the first and second circuit breakers (60) are open. The interlocking device according to claim 1 or 2, characterized in that it comprises a covering element (30) that is suitable to be fixed to said second bracket (10) so as to cover the means for fixing the first bracket (1) to the second bracket (10) and prevent direct access thereto. The interlocking device according to one or more of the preceding claims, characterized in that said first supporting bracket (1) and said first and second circuit breakers (60) are mounted on the same face of the plate (50) with the first bracket (1) arranged between the two circuit breakers (60). The interlocking device according to one or more of the preceding claims, characterized in that said first supporting bracket (1) has at least one first surface, which is provided with a hole (3) that is suitable to accommodate means for fixing to said mounting plate (60), at least one second surface, which is arranged transversely to the first surface and forms at least one supporting surface for said second bracket (10), and at least one third surface, which protrudes transversely from the second surface and is provided with holes (8) suitable to receive means for fixing to said second bracket (10). The interlocking device according to claim 5, characterized in that said first bracket (1) comprises a first end portion and a second end portion, which are L-shaped, the short arms (2) of the L-shape being perforated and fixed to the plate (50) so as to mutually diverge, the long arms (4) being arranged parallel to each other and orientated away from the plate (50), and a third portion, which is substantially shaped like a square wave and connects said long arms (4) of the first and second portions, the central wall (7) of the square wave being arranged substantially parallel to said short sides (2) and being provided with holes (8) for fixing to the second bracket (10). The interlocking device according to one or more of the preceding claims, characterized in that said second bracket (10) has at least one surface for contact with said first bracket (1), at least one second surface in which there are holes suitable to receive means for fixing to the first bracket (1) and to the covering element (30), and means for guiding said interlocking element (20). The interlocking device according to one or more of claims 5 to 7, characterized in that said second bracket (10) has fourth and fifth L-shaped end portions, in which the short arms (12) are arranged so as to mutually converge and rest on the long arms (4) of said first and second portions and the long arms (13) are parallel and directed away from the plate (50), and a sixth portion, which is shaped like a square wave and mates geometrically with the complementarily shaped walls of said third portion, the side walls (15) of said sixth square-wave portion being provided with holes (17) for fixing to the covering element (30), the central wall (16) being provided with holes for fixing to the first supporting bracket (1). The interlocking device according to one or more of claims 5 to 8, characterized in that said second bracket (10) further has, on the central wall (16) of said sixth square-wave portion and on the opposite side with respect to the side walls (15), protruding hooks (18) that face each other and mate with corresponding edges of the interlocking element (20), so as to facilitate its guided sliding and subsequent positioning in the intended position, a first protruding and perforated wall (21) furthermore protruding from said end wall substantially at right angles thereto and being suitable to receive means for locking with said covering element (30). The interlocking device according to one or more of the preceding claims, characterized in that said interlocking element (20) comprises a rod-like body which has, in a substantially central position, means (22) for gripping said body and two holes (23) suitable to facilitate the passage of the means for mutually fixing said first and second brackets (1, 10), a second protruding and perforated wall (24) protruding from said rod-like body substantially at right angles thereto, said second wall (24) being suitable to mate with said first protruding and perforated wall (21) by virtue of said locking means. The interlocking device according to one or more of claims 3 to 10, characterized in that said covering element (30) has a plate-like body with folded edges (31), in the central part (32) of which there is a cutout (33) suitable to accommodate said grip means (22) and there are two openings (34) arranged on opposite sides with respect to the cutout (33) and suitable to respectively accommodate said first and second opening/closure levers (62) and at least one slot (35) suitable to accommodate said first and second protruding and perforated walls (21, 24), holes (36) being furthermore provided on said folded edges (31) and being suitable to accommodate means for fixing to the second bracket (10). A device for interlocking at least three single-or multipole circuit breakers, of which: - a first circuit breaker (60) according to claim 1; - a second circuit breaker (60) according to claim 1; - a third circuit breaker (60) having an enclosure (61) that contains, for each pole, at least one fixed contact and one movable contact that can be operatively coupled/uncoupled with respect to each other, actuation means suitable to supply the energy required to move the movable contacts, and a third opening/closure lever (62) that protrudes outside said enclosure (61); said device comprising: - a first supporting bracket (1) according to one or more of the preceding claims; - a second bracket (10) according to claim 9; - a first interlocking element (20) according to claim 10, characterized in that it further comprises: - a further first supporting bracket (1) according to one or more of the preceding claims ; - a further second bracket (10) according to claim 9; - a second interlocking element (20) according to claim 10; - a covering element (30) that has a plate-like body with folded edges (31), the central portion (32) of which is provided with a first cutout and a second cutout (33) that are suitable to accommodate respectively the grip means (22) of said first and second interlocking elements (20), three openings (34) arranged in pairs on opposite sides with respect to the cutouts (33) and each of which suitable to accommodate one corresponding opening/closure levers (62) of said first, second and third circuit breaker (60), and at least one first slot and one second slot (35), which are suitable to accommodate said first (21) and second protruding and perforated walls (24) of said second brackets (10) and of said interlocking elements (20), holes (36) being furthermore provided on said folded edges (31) so as to accommodate means for fixing said covering element (30) to second brackets (10).
Anspruch[fr]
Dispositif de verrouillage mutuel d'au moins deux disjoncteurs unipolaires ou multipolaires (60), comprenant : -- un premier disjoncteur (60) ayant une enveloppe de protection (61) qui contient, pour chaque pôle, au moins un contact fixe et un contact mobile qui peuvent être opérationnellement couplés/découplés l'un par rapport à l'autre, des moyens d'actionnement appropriés pour fournir l'énergie requise pour déplacer les contacts mobiles, et un premier levier d'ouverture/de fermeture (62) qui fait saillie à l'extérieur de ladite enveloppe de protection (61) ; -- un deuxième disjoncteur (60) ayant une enveloppe de protection (61) qui contient, pour chaque pôle, au moins un contact fixe et un contact mobile qui peuvent être opérationnellement couplés/découplés l'un par rapport à l'autre, des moyens d'actionnement appropriés pour fournir l'énergie requise pour déplacer les contacts mobiles, et un deuxième levier d'ouverture/de fermeture (62) qui fait saillie à l'extérieur de ladite enveloppe de protection (61) ;

le dispositif comprenant au moins :
-- un premier support de soutien (1), approprié pour être fixé sur une plaque de montage (50) desdits premier et deuxième disjoncteurs (60) ; -- un second support (10), approprié pour être fixé par des moyens de fixation audit premier support (1) et pour être supporté par ceux-ci ; caractérisé en ce qu'il comprend en outre : -- un élément de verrouillage (20), pourvu d'un corps façonné qui est opérationnelle couplé audit second support (10) de sorte qu'il peut bouger par rapport à et en étant guidé par lui, ledit élément de verrouillage (20) étant approprié pour être connecté de façon rigide au second support (10), par des moyens de verrouillage, dans une position choisie dans lequel il interagit opérationnellement avec au moins ledit premier levier d'ouverture/de fermeture (62) dans une condition qui correspond à l'ouverture du premier disjoncteur (60), empêchant son déplacement et empêchant les disjoncteurs d'être fermés simultanément.
Dispositif de verrouillage selon la revendication 1, caractérisé en ce que ledit élément de verrouillage (20) est couplé d'une manière guidée de façon coulissante vers ledit second support (10) et peut être relié de façon rigide à celui-ci, par lesdits moyens de verrouillage, soit dans une première position, dans laquelle une première surface d'extrémité interagit avec ledit premier levier d'ouverture/de fermeture (62), empêchant son déplacement lorsque le premier disjoncteur (60) est ouvert, soit dans une deuxième position, dans laquelle une seconde surface d'extrémité interagit avec ledit deuxième levier d'ouverture/de fermeture (62), empêchant son déplacement lorsque le deuxième disjoncteur (60) est ouvert, ou dans une troisième position, dans laquelle lesdites première et seconde surfaces d'extrémité interagissent avec lesdits premier et deuxième leviers d'ouverture/de fermeture (62), empêchant leur déplacement, lorsque les premier et deuxième disjoncteurs (60) sont ouverts. Dispositif de verrouillage selon la revendication 1 ou 2, caractérisé en ce qu'il comprend un élément couvrant (30) qui est approprié pour être fixé sur ledit second support (10) de sorte à couvrir les moyens de fixation du premier support (1) au second support (10) et d'empêcher leur accès direct. Dispositif de verrouillage selon une ou plusieurs des revendications précédentes, caractérisé en ce que ledit premier support de soutien (1) et lesdits premier et deuxième disjoncteurs (60) sont montés sur la même face de la plaque (50) avec le premier support (1) agencé entre les deux disjoncteurs (60). Dispositif de verrouillage selon une ou plusieurs des revendications précédentes, caractérisé en ce que ledit premier support de soutien (1) a au moins une première surface, qui est pourvue d'un trou (3) qui est approprié pour accueillir des moyens de fixation à ladite plaque de montage (60), au moins une deuxième surface, qui est agencée transversalement à la première surface et forme au moins une surface de support pour ledit second support (10), et au moins une troisième surface, qui fait saillie transversalement depuis la deuxième surface et est pourvue de trous (8) appropriés pour recevoir des moyens de fixation audit second support (10). Dispositif de verrouillage selon la revendication 5, caractérisé en ce que ledit premier support (1) comprend une première partie d'extrémité et une deuxième partie d'extrémité, qui sont en forme de L, les bras courts (2) de la forme de L étant perforés et fixés à la plaque (50) de sorte à diverger mutuellement, les bras longs (4) étant agencés parallèlement l'un à l'autre et orientés à l'opposé de la plaque (50), et une troisième partie, qui a sensiblement la forme d'une onde carrée et connecte lesdits bras longs (4) des première et deuxième parties, la paroi centrale (7) de l'onde carrée étant agencée sensiblement parallèlement auxdits côtés courts (2) et étant pourvue de trous (8) à des fins de fixation sur le second support (10). Dispositif de verrouillage selon une ou plusieurs des revendications précédentes, caractérisé en ce que ledit second support (10) a au moins une surface pour entrer en contact avec ledit premier support (1), au moins une deuxième surface dans laquelle il y a des trous appropriés pour recevoir des moyens de fixation sur le premier support (1) et sur l'élément couvrant (30), et des moyens pour guider ledit élément de verrouillage (20). Dispositif de verrouillage selon une ou plusieurs des revendications 5 à 7, caractérisé en ce que ledit second support (10) a des quatrième et cinquième parties d'extrémité en forme de L, dans lesquelles les bras courts (12) sont agencés de sorte à mutuellement converger et reposer sur les bras longs (4) des première et deuxième parties et les bras longs (13) sont parallèles et dirigés à l'opposé de la plaque (50), et une sixième partie, qui a la forme d'une onde carrée et correspond géométriquement aux parois de forme complémentaire de ladite troisième partie, les parois latérales (15) de ladite sixième partie d'onde carrée étant pourvues de trous (17) à des fins de fixation sur l'élément couvrant (30), la paroi centrale (16) étant pourvue de trous à des fins de fixation sur le premier support de soutien (1). Dispositif de verrouillage selon une ou plusieurs des revendications 5 à 8, caractérisé en ce que ledit second support (10) a en outre, sur la paroi centrale (16) de ladite sixième partie d'onde carrée et sur le côté opposé par rapport aux parois latérales (15), des crochets en saillie (18) qui se font face et s'adaptent à des bords correspondants de l'élément de verrouillage (20), de sorte à faciliter son coulissement guidé et son positionnement subséquent dans la position voulue, une première paroi en saillie et perforée (21) faisant en outre saillie de ladite paroi d'extrémité sensiblement à angles droits et étant appropriée pour recevoir des moyens de verrouillage avec ledit élément couvrant (30). Dispositif de verrouillage selon une ou plusieurs des revendications précédentes, caractérisé en ce que ledit élément de verrouillage (20) comprend un corps semblable à une tige qui a, dans une position sensiblement centrale, des moyens (22) pour saisir ledit corps et deux trous (23) appropriés pour faciliter le passage des moyens pour mutuellement fixer lesdits premier et second supports (1, 10), une deuxième paroi en saillie et perforée (24) en saillie depuis ledit corps semblable à une tige sensiblement à angles droits, ladite deuxième paroi (24) étant appropriée pour s'adapter à ladite première paroi en saillie et perforée (21) par lesdits moyens de verrouillage. Dispositif de verrouillage selon une ou plusieurs des revendications 3 à 10, caractérisé en ce que ledit élément couvrant (30) a un corps semblable à une plaque avec des bords pliés (31), dans la partie centrale (32) duquel il y a une découpe (33) appropriée pour accueillir lesdits moyens de saisie (22) et il y a deux ouvertures (34) agencées sur des côtés opposés par rapport à la découpe (33) et appropriés pour respectivement accueillir lesdits premier et deuxième leviers d'ouverture/de fermeture (62) et au moins une fente (35) appropriée pour accueillir lesdites première et deuxième parois en saillie et perforées (21, 24), des trous (36) étant en outre prévus sur lesdits bords pliés et (31) et étant appropriés pour accueillir des moyens de fixation au second support (10). Dispositif de verrouillage mutuel d'au moins trois disjoncteurs unipolaires ou multipolaires, comprenant : -- un premier disjoncteur (60) selon la revendication 1; -- un deuxième disjoncteur (60) selon la revendication 1; -- un troisième disjoncteur (60) ayant une enveloppe de protection (61) qui contient, pour chaque pôle, au moins un contact fixe et un contact mobile qui peuvent être opérationnellement couplés/découplés l'un par rapport à l'autre, des moyens d'actionnement appropriés pour fournir l'énergie requise pour déplacer les contacts mobiles, et un troisième levier d'ouverture/de fermeture (62) qui fait saillie à l'extérieur de ladite enveloppe de protection (61); le dispositif comprenant : -- un premier support de soutien (1), selon une ou plusieurs des revendications précédentes ; -- un second support (10), selon la revendication 9; -- un premier élément de verrouillage (20), selon la revendication 10; caractérisé en ce qu'il comprend en outre : -- un autre premier support de soutien (1), selon une ou plusieurs des revendications précédentes ; -- un autre second support (10), selon la revendication 9; -- un second élément de verrouillage (20), selon la revendication 10; un élément couvrant (30) qui a un corps semblable à une plaque avec des bords pliés (31), dont la partie centrale (32) est pourvue d'une première découpe et d'une seconde découpe (33) qui sont appropriées pour accueillir respectivement les moyens de saisie (22) desdits premier et second éléments de verrouillage (20), trois ouvertures (34) agencées en paires sur les côtés opposés par rapport aux découpes (33) et chacune d'elles étant appropriée pour accueillir les leviers d'ouverture/de fermeture (62) correspondants desdits premier, deuxième et troisième disjoncteurs (60), et au moins une première fente et une seconde fente (35), qui sont appropriées pour accueillir lesdites première (21) et deuxième parois en saillie et perforées (24) desdits seconds supports (10) et desdits éléments de verrouillage (20), des trous (36) étant en outre prévus sur lesdits bords pliés (31) de sorte à accueillir des moyens pour fixer ledit élément couvrant (30) sur les seconds supports (10).






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