EP2463884B1 - Switchgear having a plurality of single-pole phase units and comprising a single mechanism for actuating said phase units - Google Patents

Switchgear having a plurality of single-pole phase units and comprising a single mechanism for actuating said phase units Download PDF

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Publication number
EP2463884B1
EP2463884B1 EP11354062.9A EP11354062A EP2463884B1 EP 2463884 B1 EP2463884 B1 EP 2463884B1 EP 11354062 A EP11354062 A EP 11354062A EP 2463884 B1 EP2463884 B1 EP 2463884B1
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EP
European Patent Office
Prior art keywords
abutment
auxiliary
switchgear according
driving rod
units
Prior art date
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Active
Application number
EP11354062.9A
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German (de)
French (fr)
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EP2463884A1 (en
Inventor
Christophe Grumel
Denis Giraud
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Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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Priority to PL11354062T priority Critical patent/PL2463884T3/en
Publication of EP2463884A1 publication Critical patent/EP2463884A1/en
Application granted granted Critical
Publication of EP2463884B1 publication Critical patent/EP2463884B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • 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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H01H2071/1036—Interconnected mechanisms having provisions for four or more poles

Definitions

  • the invention relates to a cut-off device comprising a unipolar main breaking unit supporting a control mechanism and at least a first unipolar auxiliary breaking block, said blocks being arranged side by side in a transverse direction.
  • Each cutoff block comprises a rotating bar coupled to a movable contact bridge guided rotation about an axis of rotation.
  • Two fixed contacts cooperate with said movable contact bridge and are respectively connected to a current lead.
  • the control mechanism of the breaking blocks comprises a lever controlling at least one driving rod passing through the bars, an angular displacement of the at least one driving rod driving that of the movable contact bridges between an open position and a closing position of the contacts.
  • control mechanism capable of acting on several breaking blocks.
  • control mechanism is adapted to operate with multipole breaking devices such as in particular three-pole or four-pole devices.
  • control mechanism When the control mechanism is associated with the operation of a three-pole breaking device, there is a symmetrical positioning of the mechanism relative to the three cutoff units positioned side by side. The transmission of the control forces Fc is then distributed uniformly between all the poles of contact. The forces Fp of pressure and over-contact stroke measured at each contact pole are substantially constant.
  • Bipolar or four-pole circuit breakers have the disadvantage of inducing an asymmetry in the distribution of the poles with respect to the centralized position of the control mechanism. This asymmetry is particularly prejudicial for products composed of a cut-off bulb with a contact bar.
  • a connecting member of the control mechanism connects all the contact bars between them.
  • the connecting member is generally composed of at least one drive rod. Said driving rod then undergoes significant mechanical stress under the combined effect of the contact pressure forces Fp, Fc and the control mechanism.
  • the bulb or the eccentric cutoff block with respect to the control mechanism comprises an auxiliary mechanism comprising spring means. Coupling means connect the main control mechanism to the auxiliary mechanism.
  • additional control means which also create a slowing of the movable contact at the opening. This slowing down ultimately results in faster wear of the contact.
  • additional control means may also take the place of one or more auxiliaries.
  • the solution described in the patent application US2003 / 0098224 includes a control mechanism specifically dedicated to the four-pole cut-off device.
  • the control mechanism is then positioned on two cutoff blocks placed in the center.
  • This solution has the disadvantage of having a specific control mechanism by control device. Indeed the control device associated with a four-pole circuit breaker can not for example be used for a three-pole circuit breaker and vice versa.
  • the invention therefore aims to overcome the drawbacks of the state of the art, so as to provide a cut-off device comprising an effective mechanism for actuating the cutoff blocks.
  • the cut-off device comprises compensation means comprising an abutment against which the driving rod bears in the closed position so as to limit locally to the level of the first auxiliary unit the displacement of said driving rod and applying a torque to said rod to maintain it parallel to the axis of rotation.
  • said at least first auxiliary cutoff unit comprises a housing comprising a circular arc-shaped orifice in which the drive rod moves between the closed and the open positions, the stop being positioned to reduce the length of the arc and the angular displacement of said rod in said orifice.
  • the stop is positioned in the first unipolar cutoff block at one end at one end of the arc forming the orifice so as to reduce the travel of the driving rod moving to inside the hole.
  • the stop is positioned on a outer flange of the cutoff device, said flange being positioned against an outer wall of the housing of the first unipolar breaking block.
  • the breaking device according to the invention comprises three unipolar auxiliary breaking units arranged side by side in a transverse direction, the first auxiliary cutoff block being separated from the two other auxiliary cutoff units by the main cutoff block supporting the control mechanism of said blocks.
  • the stop is rigid at adjustable height.
  • the abutment comprises a deformable means
  • the stop comprises a spring.
  • the cut-off device 600 comprises a main cutoff unit Bp supporting a control mechanism and at least a first auxiliary cutoff unit Ba1.
  • the cutoff device 600 comprises four unipolar cutoff blocks Bp, Ba1, Ba2, Ba3 arranged side by side in a transverse direction.
  • Said device comprises in particular three auxiliary unipolar breaking blocks Ba1, Ba2, Ba3.
  • the first auxiliary breaking unit Ba1 is separated from the other two auxiliary breaking units Ba2, Ba3 by the main breaking block Bp supporting the control mechanism 8 of said blocks.
  • the switching device 100 usually a circuit breaker, is then a four-pole circuit breaker.
  • the switching device 100 comprises a trigger 7 associated with the cutoff device 600.
  • the unipolar cutoff blocks are then intended to be respectively connected on the one hand to the trigger 7 at the downstream range. 5 and on the other hand to a current line to be protected at an upstream range 4.
  • the unipolar cutoff block 10 is also called a light bulb.
  • the elements making up the switching apparatus 100 will be described in relation to the use position in which the circuit breaker 100 is set up in a table, with the nose 9 comprising a handle 88 vertical and parallel to the mounting wall, the upstream connection pads 4 on the power line located at the top and forming the upper face 74 of the cut-off device 100 and the trigger 7 at the bottom.
  • the use of relative positional terms, such as “lateral”, “superior”, “background”, etc., should not be construed as a limiting factor.
  • the controller is intended for control an actuating mechanism 8 of the electrical contacts.
  • Each unipolar cutoff block Bp, Ba1, Ba2, Ba3 allows the breaking of a single pole.
  • Said block is advantageously in the form of a flat housing 12 of molded plastic, with two large parallel faces 14 distant of a thickness e.
  • the thickness e is of the order of 23 mm for a 160 A caliber.
  • the housing 12 is formed of two parts, preferably mirror symmetrical, secured to one another on their large face 14 by any suitable means. As illustrated in a preferred embodiment in figure 5 a complementary tenon / mortise type system makes it possible to fit the housing parts 12 to one another, one of the two parts (not shown) comprising lugs adapted to penetrate the recesses 16 of the other. Arrangements 18 are also made to allow the juxtaposition of Bp, Ba1, Ba2, Ba3 unipolar block housings 12 and their joining together for a multipole circuit breaker 100.
  • Each unipolar breaking block comprises a cutoff mechanism 20 housed in the housing 12.
  • the cutting mechanism 20 is preferably double rotary cut.
  • the switching device 100 according to the invention is particularly intended for applications up to 630 A and in some applications up to 800 A, for which the simple cut may not be sufficient.
  • the cut-off mechanism 20 comprises a movable contact bridge 22 rotatable about an axis of rotation Z.
  • the movable contact bridge 22 is mounted floating in a rotary bar 26 having a transverse housing orifice of said contact bridge. Said bridge protrudes on either side of the bar 26.
  • Said rotary bar 26 is interposed between the two lateral faces 14 of the housing 12 cutoff block Bp, Ba1, Ba2, Ba3.
  • the movable contact bridge 22 comprises at each end a contact pad.
  • the breaking block comprises a pair of fixed contacts 41, 51. Each fixed contact is intended to cooperate with a contact pad of the movable contact bridge 22.
  • a first fixed contact 41 is intended to be connected to the line of contact. current by an upstream range 4.
  • a second fixed contact 51 is intended to be connected to the trigger 7 by a downstream range 5.
  • Each housing portion 12 comprises a corresponding passage recess.
  • Said bridge is pivotally mounted between an open position in which the contact pads are spaced apart from the fixed contacts 41, 51 and a closed position in which they are in contact with each of the fixed contacts.
  • the contact pads of the contact bridge 22 are preferably placed symmetrically with respect to the axis of rotation Z.
  • the unipolar cutoff blocks Bp, Ba1, Ba2, Ba3 preferably comprise two arcing chambers 24 for extinguishing electric arcs.
  • Each interrupting chamber 24 opens on an opening volume between a contact pad of the contact bridge 22 and a fixed contact.
  • Each breaking chamber 24 is delimited by two side walls 24A, a rear wall remote from the opening volume 24B, a bottom wall 24C close to the fixed contact and an upper wall 24D.
  • each breaking chamber 24 comprises a stack of at least two deionization fins 25 separated from each other by a gap for exchange of the cutoff gases.
  • Each interrupting chamber 24 comprises at least one output connected to at least one exhaust channel 38, 42 of the cutoff gases.
  • the unipolar cutoff blocks Bp, Ba1, Ba2, Ba3 are intended to be driven simultaneously, and are coupled for this purpose by at least one drive rod 30.
  • the drive rod 30 has a longitudinal axis Y substantially parallel to the axis of rotation Z of the movable contact bridge.
  • a control mechanism 8 of the cutoff blocks is positioned on the main cutoff block Bp.
  • the control mechanism 8 comprises a lever 88 controlling the displacement of the drive rod 30 by means of links 50. As shown in FIGS. Figures 6A, 6B said links transmit a control force Ft on the drive rod 30.
  • the driving rod 30 passes through the bars 26 of the breaking blocks Bp, Ba1, Ba2, Ba3 via orifices 32.
  • a single drive rod 30 is used.
  • Each housing portion 12 comprises a hole 34 in the shape of an arc of a circle allowing at least the displacement of the drive rod 30 passing through it between the current flow position and the open position.
  • each part of the housing 12 is molded with internal arrangements allowing a relatively stable positioning of the various elements making up the cut-off mechanism 20, in particular two symmetrical housings for each of the cut-off chambers 24, and a circular central recess allowing the setting place of the Bar 26.
  • the cut-off device 600 comprises means for compensating the displacement of the drive rod 30.
  • the compensation means comprise a stop 60 against which the drive rod 30 bears in the closed position. .
  • the positioning of the stop 60 is made so as to limit locally to the level of the first auxiliary block breaking Ba1 the displacement of said drive rod 30.
  • the abutment tends to apply a compensating force Fr capable of generating a rotation torque Cr on the drive rod 30 so that the longitudinal axis Y of said rod does not pivot at the end of displacement and in particular when the movable contact bridge 22 is in a closed position of the contacts.
  • the longitudinal axis Y of the drive rod 30 is kept parallel to the axis of rotation Z of the rotary bar.
  • the stop 60 is preferably positioned at one end of the arc forming the orifice 34 so as to reduce the length of the arc of the circle and the angular displacement of said rod.
  • the stop 60 is positioned in the first auxiliary block breaking Ba1. In other words, the positioning of the stop inside the orifice 34 makes it possible to reduce the stroke of the drive rod 30 moving inside said orifice.
  • the stop 60 is positioned on an outer flange 70 of the cut-off device, said flange 70 being positioned against an outer wall of the housing 12 of the first auxiliary block breaking unit Ba1 cutoff unit.
  • the stop is rigid and is height adjustable.
  • the stop may comprise a threaded rod.
  • the threaded rod is intended to collaborate with a threaded zone positioned on the flange or on the outer wall of the housing 12 of said cutoff unit.
  • the stop comprises a deformable means such as in particular a spring.

Landscapes

  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Description

DOMAINE TECHNIQUE DE L'INVENTIONTECHNICAL FIELD OF THE INVENTION

L'invention est relative à un dispositif de coupure comportant un bloc principal de coupure unipolaire supportant un mécanisme de commande et au moins un premier bloc auxiliaire de coupure unipolaire, lesdits blocs étant disposés côte à côte selon une direction transversale. Chaque bloc de coupure comprend un barreau rotatif couplé à un pont de contacts mobile guidé rotation autour d'un axe de rotation. Deux contacts fixes coopèrent avec ledit pont de contacts mobile et sont reliés respectivement à un conducteur d'amenée de courant. Le mécanisme de commande des blocs de coupure comprend une manette commandant au moins une tige d'entrainement traversant les barreaux, un déplacement angulaire de ladite au moins une tige d'entrainement entrainant celui des ponts de contacts mobile entre une position d'ouverture et une position de fermeture des contacts.The invention relates to a cut-off device comprising a unipolar main breaking unit supporting a control mechanism and at least a first unipolar auxiliary breaking block, said blocks being arranged side by side in a transverse direction. Each cutoff block comprises a rotating bar coupled to a movable contact bridge guided rotation about an axis of rotation. Two fixed contacts cooperate with said movable contact bridge and are respectively connected to a current lead. The control mechanism of the breaking blocks comprises a lever controlling at least one driving rod passing through the bars, an angular displacement of the at least one driving rod driving that of the movable contact bridges between an open position and a closing position of the contacts.

ETAT DE LA TECHNIQUESTATE OF THE ART

L'utilisation de mécanisme de commande unique apte à agir sur plusieurs blocs de coupure est connue. Généralement, le mécanisme de commande est adapté pour fonctionner avec des dispositifs de coupure multipolaire tel que notamment des dispositifs tripolaire ou tétrapolaire.The use of a single control mechanism capable of acting on several breaking blocks is known. Generally, the control mechanism is adapted to operate with multipole breaking devices such as in particular three-pole or four-pole devices.

Lorsque le mécanisme de commande est associé au fonctionnement d'un dispositif de coupure tripolaire, on observe un positionnement symétrique du mécanisme par rapport aux trois blocs de coupure positionnés cote à cote. La transmission des efforts de commande Fc est alors répartie uniformément entre tous les pôles de contact. Les efforts Fp de pression et sur-course de contact mesurés au niveau de chaque pôle de contact sont sensiblement constants.When the control mechanism is associated with the operation of a three-pole breaking device, there is a symmetrical positioning of the mechanism relative to the three cutoff units positioned side by side. The transmission of the control forces Fc is then distributed uniformly between all the poles of contact. The forces Fp of pressure and over-contact stroke measured at each contact pole are substantially constant.

Les disjoncteurs bipolaires ou tétrapolaires ont l'inconvénient d'induire une dissymétrie dans la répartition des pôles par rapport à la position centralisée du mécanisme de commande. Cette dissymétrie est particulièrement préjudiciable pour les produits composés ampoule de coupure comportant un barreau porte-contact. Par construction, un organe de liaison du mécanisme de commande relie tous les barreaux portes-contacts entre eux. L'organe de liaison est composé généralement d'au moins une tige d'entrainement. Ladite tige d'entrainement subit alors des contraintes mécaniques importantes sous l'effet conjugué des efforts Fp, Fc de pression de contacts et du mécanisme de commande.Bipolar or four-pole circuit breakers have the disadvantage of inducing an asymmetry in the distribution of the poles with respect to the centralized position of the control mechanism. This asymmetry is particularly prejudicial for products composed of a cut-off bulb with a contact bar. By construction, a connecting member of the control mechanism connects all the contact bars between them. The connecting member is generally composed of at least one drive rod. Said driving rod then undergoes significant mechanical stress under the combined effect of the contact pressure forces Fp, Fc and the control mechanism.

En pratique, comme représenté sur la figure 6A, dans le cas d'un disjoncteur bipolaire ou tétrapolaire, la dissymétrie induit un basculement qui conduit à délester le pole le plus éloigné du mécanisme de commande. Suivant le pays dans lequel le disjoncteur est installé, le pole le plus éloigné peut être le neutre ou une phase. Ce délestage du pole se traduit par une perte d'enfoncement et de pression de contact Fp au niveau dudit pole. Concomitamment, on observe une surcharge du pole adjacent au mécanisme et opposé au pole précité. Cette surcharge se traduit par un enfoncement et une pression de contact trop importants.In practice, as represented on the Figure 6A in the case of a bipolar or four-pole circuit breaker, the asymmetry induces a tilting which leads to off the pole furthest from the control mechanism. Depending on the country in which the circuit breaker is installed, the furthest pole may be the neutral or phase. This shedding of the pole results in a loss of depression and contact pressure Fp at said pole. Concomitantly, there is an overload of the pole adjacent to the mechanism and opposite to the aforementioned pole. This overload results in too much sink and contact pressure.

Pour résoudre ce problème de déséquilibre observé dans les efforts appliqués au niveau des contacts, certaines solutions décrivent l'usage de mécanisme additionnel. En effet, tel que décrit dans la demande de brevet EP0540431 , l'ampoule ou le bloc de coupure excentré par rapport au mécanisme de commande comporte un mécanisme auxiliaire comprenant des moyens ressort. Des moyens de couplages relient le mécanisme de commande principal au mécanisme auxiliaire. Ces solutions présentent l'inconvénient d'utiliser des moyens supplémentaire de commande qui créent par ailleurs un ralentissement du contact mobile à l'ouverture. Ce ralentissement se traduit in fine par une usure plus rapide du contact. Ces moyens supplémentaires de commande peuvent aussi prendre la place d'un ou plusieurs auxiliaires.To solve this problem of imbalance observed in the efforts applied at the level of the contacts, some solutions describe the use of additional mechanism. Indeed, as described in the patent application EP0540431 , the bulb or the eccentric cutoff block with respect to the control mechanism comprises an auxiliary mechanism comprising spring means. Coupling means connect the main control mechanism to the auxiliary mechanism. These solutions have the disadvantage of using additional control means which also create a slowing of the movable contact at the opening. This slowing down ultimately results in faster wear of the contact. These additional control means may also take the place of one or more auxiliaries.

D'autres solutions telles que décrites dans la demande de brevet US2007/0075808 , utilisent un organe de liaison entre tous les blocs de coupure comportant deux tiges d'entrainement. L'utilisation de deux tiges 'entrainement permet d'obtenir une certaine rigidité de l'organe de liaison et de réduire ainsi les déformations mécaniques. Cependant, bien que réduisant les problèmes liés au déséquilibre géométrique décrit précédemment, cette solution n'est pas entièrement satisfaisante.Other solutions as described in the patent application US2007 / 0075808 , use a connecting member between all the breaking blocks comprising two drive rods. The use of two drive rods makes it possible to obtain a certain rigidity of the connecting member and thus to reduce the mechanical deformations. However, while reducing the problems associated with the geometric imbalance previously described, this solution is not completely satisfactory.

Enfin, la solution décrite dans la demande de brevet US2003/0098224 comporte un mécanisme de commande dédié spécifiquement au dispositif de coupure tétrapolaire. Le mécanisme de commande est alors positionné sur deux blocs de coupure placé au centre. Cette solution présente l'inconvénient d'avoir un mécanisme de commande spécifique par dispositif de commande. En effet le dispositif de commande associé à un disjoncteur tétrapolaire ne peut pas par exemple être utilisé pour un disjoncteur tripolaire et inversement.Finally, the solution described in the patent application US2003 / 0098224 includes a control mechanism specifically dedicated to the four-pole cut-off device. The control mechanism is then positioned on two cutoff blocks placed in the center. This solution has the disadvantage of having a specific control mechanism by control device. Indeed the control device associated with a four-pole circuit breaker can not for example be used for a three-pole circuit breaker and vice versa.

Le document " FR 2 891 661 A1 " décrit un dispositif de coupure selon le préambule de la revendication 1.The document " FR 2 891 661 A1 "discloses a cut-off device according to the preamble of claim 1.

EXPOSE DE L'INVENTIONSUMMARY OF THE INVENTION

L'invention vise donc à remédier aux inconvénients de l'état de la technique, de manière à proposer un dispositif de coupure comportant un mécanisme d'actionnement efficace des blocs de coupure.The invention therefore aims to overcome the drawbacks of the state of the art, so as to provide a cut-off device comprising an effective mechanism for actuating the cutoff blocks.

Le dispositif de coupure selon l'invention comporte des moyens de compensation comprenant une butée contre laquelle vient en appui la tige d'entrainement en position de fermeture de manière à limiter localement au niveau du premier bloc auxiliaire le déplacement de ladite tige d'entrainement et à appliquer un couple de rotation à ladite tige pour la maintenir parallèle à l'axe de rotation.The cut-off device according to the invention comprises compensation means comprising an abutment against which the driving rod bears in the closed position so as to limit locally to the level of the first auxiliary unit the displacement of said driving rod and applying a torque to said rod to maintain it parallel to the axis of rotation.

Selon un mode de développement de l'invention, ledit au moins premier bloc auxiliaire de coupure comporte un boîtier comprenant un orifice en forme d'arc de cercle dans lequel se déplace la tige d'entrainement entre les positions de fermeture et d'ouverture, la butée étant positionnée de manière à réduire la longueur de l'arc de cercle et le déplacement angulaire de ladite tige dans ledit orifice.According to a development mode of the invention, said at least first auxiliary cutoff unit comprises a housing comprising a circular arc-shaped orifice in which the drive rod moves between the closed and the open positions, the stop being positioned to reduce the length of the arc and the angular displacement of said rod in said orifice.

Selon un premier mode particulier de réalisation, la butée est positionnée dans le premier bloc de coupure unipolaire à une extrémité à une extrémité de l'arc de cercle formant l'orifice de manière à réduire la course de la tige d'entrainement se déplaçant à l'intérieur de l'orifice.According to a first particular embodiment, the stop is positioned in the first unipolar cutoff block at one end at one end of the arc forming the orifice so as to reduce the travel of the driving rod moving to inside the hole.

Selon un second mode particulier de réalisation la butée est positionnée sur un flasque extérieur du dispositif de coupure, ledit flasque étant positionné contre une paroi externe du boîtier du premier bloc de coupure unipolaire.According to a second particular embodiment, the stop is positioned on a outer flange of the cutoff device, said flange being positioned against an outer wall of the housing of the first unipolar breaking block.

De préférence, le dispositif de coupure selon l'invention comprend trois blocs auxiliaires de coupure unipolaire disposés côte à côte selon une direction transversale, le premier auxiliaire bloc de coupure étant séparé des deux autres blocs auxiliaires de coupure par le bloc principal de coupure supportant le mécanisme de commande desdits blocs.Preferably, the breaking device according to the invention comprises three unipolar auxiliary breaking units arranged side by side in a transverse direction, the first auxiliary cutoff block being separated from the two other auxiliary cutoff units by the main cutoff block supporting the control mechanism of said blocks.

Avantageusement, la butée est rigide à hauteur ajustable.Advantageously, the stop is rigid at adjustable height.

Avantageusement, la butée comporte un moyen déformableAdvantageously, the abutment comprises a deformable means

Avantageusement, la butée comporte un ressort.Advantageously, the stop comprises a spring.

BREVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre d'un mode particulier de réalisation de l'invention, donné à titre d'exemple non limitatif, et représenté aux dessins annexés sur lesquels:

  • La figure 1 représente une vue éclatée en perspective d'un disjoncteur comportant un dispositif de coupure selon un mode de réalisation de l'invention ;
  • La figure 2 représente une vue en perspective d'un dispositif de coupure selon la figure 1 ;
  • La figure 3 représente une vue d'ensemble en perspective d'un disjoncteur comportant un dispositif de coupure selon un mode de réalisation de l'invention ;
  • Les figures 4 et 5 montrent des vues en perspective d'un bloc unipolaire de coupure d'un dispositif de coupure selon un mode de réalisation de l'invention ;
  • La figure 6A représente une vue schématique de la répartition des efforts de pression de contact d'un dispositif de coupure de type connu ;
  • La figure 6B représente une vue schématique de la répartition des efforts de pression de contact d'un dispositif de coupure selon l'invention ;
  • La figure 7 représente une vue en perspective les blocs de coupure d'un dispositif de coupure selon l'invention.
Other advantages and features will emerge more clearly from the following description of a particular embodiment of the invention, given by way of non-limiting example, and represented in the accompanying drawings in which:
  • The figure 1 is an exploded perspective view of a circuit breaker having a cut-off device according to one embodiment of the invention;
  • The figure 2 represents a perspective view of a cut-off device according to the figure 1 ;
  • The figure 3 represents an overall perspective view of a circuit breaker comprising a cut-off device according to one embodiment of the invention;
  • The Figures 4 and 5 show perspective views of a unipolar block for breaking a breaking device according to an embodiment of the invention;
  • The Figure 6A represents a schematic view of the distribution of the contact pressure forces of a known type of cut-off device;
  • The Figure 6B represents a schematic view of the distribution of the contact pressure forces of a breaking device according to the invention;
  • The figure 7 represents a perspective view of the cutoff blocks of a cutoff device according to the invention.

DESCRIPTION DETAILLEE D'UN MODE DE REALISATIONDETAILED DESCRIPTION OF AN EMBODIMENT

Le dispositif de coupure 600 comporte un bloc principal de coupure Bp supportant un mécanisme de commande et au moins un premier bloc auxiliaire de coupure Ba1.The cut-off device 600 comprises a main cutoff unit Bp supporting a control mechanism and at least a first auxiliary cutoff unit Ba1.

Selon un mode préférentiel de réalisation de l'invention tel que représenté sur la figure 1, le dispositif de coupure 600 comporte quatre blocs de coupure unipolaire Bp, Ba1, Ba2, Ba3 disposés côte à côte selon une direction transversale. Ledit dispositif comprend notamment trois blocs auxiliaires de coupure unipolaire Ba1, Ba2, Ba3. Le premier bloc auxiliaire de coupure Ba1 est séparé des deux autres blocs auxiliaires de coupure Ba2, Ba3 par le bloc principal de coupure Bp supportant le mécanisme de commande 8 desdits blocs. L'appareil de coupure 100, généralement un disjoncteur, est alors un disjoncteur tétrapolaire.According to a preferred embodiment of the invention as represented on the figure 1 , the cutoff device 600 comprises four unipolar cutoff blocks Bp, Ba1, Ba2, Ba3 arranged side by side in a transverse direction. Said device comprises in particular three auxiliary unipolar breaking blocks Ba1, Ba2, Ba3. The first auxiliary breaking unit Ba1 is separated from the other two auxiliary breaking units Ba2, Ba3 by the main breaking block Bp supporting the control mechanism 8 of said blocks. The switching device 100, usually a circuit breaker, is then a four-pole circuit breaker.

A titre d'exemple de réalisation, l'appareil de coupure 100 comporte un déclencheur 7 associé au dispositif de coupure 600. Les blocs de coupure unipolaire sont alors destinés à être respectivement raccordé d'une part au déclencheur 7 au niveau de la plage aval 5 et d'autre part à une ligne de courant à protéger au niveau d'une plage amont 4. Le bloc de coupure unipolaire 10 est aussi appelé ampoule.As an exemplary embodiment, the switching device 100 comprises a trigger 7 associated with the cutoff device 600. The unipolar cutoff blocks are then intended to be respectively connected on the one hand to the trigger 7 at the downstream range. 5 and on the other hand to a current line to be protected at an upstream range 4. The unipolar cutoff block 10 is also called a light bulb.

Par souci de simplification de la présentation d'un mode de réalisation préféré de l'invention, les éléments composant l'appareil de coupure 100, et notamment les blocs de coupure unipolaire Bp, Ba1, Ba2, Ba3 formant le dispositif de coupure 600, seront décrits en relation avec la position d'utilisation dans laquelle le disjoncteur 100 est mis en place dans un tableau, avec le nez 9 comprenant une manette 88 verticale et parallèle à la paroi de montage, les plages de raccordement amont 4 sur la ligne électrique localisées en haut et formant la face supérieure 74 du dispositif de coupure 100 et le déclencheur 7 en bas. L'utilisation des termes relatifs de position, tels que « latéral », « supérieur », « fond », etc., ne doit pas être interprétée comme un facteur limitant. La manette est destinée à commander un mécanisme d'actionnement 8 des contacts électriques.For the sake of simplification of the presentation of a preferred embodiment of the invention, the elements making up the switching apparatus 100, and in particular the unipolar breaking blocks Bp, Ba1, Ba2, Ba3 forming the breaking device 600, will be described in relation to the use position in which the circuit breaker 100 is set up in a table, with the nose 9 comprising a handle 88 vertical and parallel to the mounting wall, the upstream connection pads 4 on the power line located at the top and forming the upper face 74 of the cut-off device 100 and the trigger 7 at the bottom. The use of relative positional terms, such as "lateral", "superior", "background", etc., should not be construed as a limiting factor. The controller is intended for control an actuating mechanism 8 of the electrical contacts.

Chaque bloc de coupure unipolaire Bp, Ba1, Ba2, Ba3 permet la coupure d'un seul pôle. Ledit bloc se présente avantageusement sous forme d'un boîtier plat 12 en plastique moulé, avec deux grandes faces parallèles 14 distantes d'une épaisseur e. Notamment, dans le mode de réalisation illustré, l'épaisseur e est de l'ordre de 23 mm pour un calibre 160 A.Each unipolar cutoff block Bp, Ba1, Ba2, Ba3 allows the breaking of a single pole. Said block is advantageously in the form of a flat housing 12 of molded plastic, with two large parallel faces 14 distant of a thickness e. In particular, in the illustrated embodiment, the thickness e is of the order of 23 mm for a 160 A caliber.

Le boîtier 12 est formé de deux parties, de préférence symétriques en miroir, solidarisées l'une à l'autre sur leur grande face 14 par tout moyen adapté. Tel qu'illustré dans un mode de réalisation préféré en figure 5 un système complémentaire de type tenon/mortaise permet l'ajustement des parties de boîtier 12 l'une sur l'autre, une des deux parties (non illustrée) comprenant des ergots adaptés pour pénétrer dans des évidements 16 de l'autre. Des aménagements 18 sont par ailleurs réalisés afin de permettre la juxtaposition des boîtiers 12 de bloc unipolaire Bp, Ba1, Ba2, Ba3 et leur solidarisation pour un disjoncteur multipolaire 100.The housing 12 is formed of two parts, preferably mirror symmetrical, secured to one another on their large face 14 by any suitable means. As illustrated in a preferred embodiment in figure 5 a complementary tenon / mortise type system makes it possible to fit the housing parts 12 to one another, one of the two parts (not shown) comprising lugs adapted to penetrate the recesses 16 of the other. Arrangements 18 are also made to allow the juxtaposition of Bp, Ba1, Ba2, Ba3 unipolar block housings 12 and their joining together for a multipole circuit breaker 100.

Chaque bloc de coupure unipolaire comprend un mécanisme de coupure 20 logé dans le boîtier 12. Selon un mode de réalisation particulier illustré sur les figures 4 et 5, le mécanisme de coupure 20 est de préférence à double coupure rotative. De fait, l'appareil de coupure 100 selon l'invention est particulièrement destiné à des applications jusqu'à 630 A et dans certaines applications jusqu'à 800 A, pour lesquelles la simple coupure peut ne pas être suffisante.Each unipolar breaking block comprises a cutoff mechanism 20 housed in the housing 12. According to a particular embodiment illustrated on the Figures 4 and 5 , the cutting mechanism 20 is preferably double rotary cut. In fact, the switching device 100 according to the invention is particularly intended for applications up to 630 A and in some applications up to 800 A, for which the simple cut may not be sufficient.

Le mécanisme de coupure 20 comprend un pont de contacts mobile 22 rotatif autour d'un axe de rotation Z. Le pont de contact mobile 22 est monté flottant dans un barreau rotatif 26 ayant un orifice transversal de logement dudit pont de contacts. Ledit pont fait saillie de part et d'autre du barreau 26. Ledit barreau rotatif 26 est intercalé entre les deux faces latérales 14 du boitier 12 bloc de coupure Bp, Ba1, Ba2, Ba3.The cut-off mechanism 20 comprises a movable contact bridge 22 rotatable about an axis of rotation Z. The movable contact bridge 22 is mounted floating in a rotary bar 26 having a transverse housing orifice of said contact bridge. Said bridge protrudes on either side of the bar 26. Said rotary bar 26 is interposed between the two lateral faces 14 of the housing 12 cutoff block Bp, Ba1, Ba2, Ba3.

Le pont de contact mobile 22 comprend à chaque extrémité une plage de contact. Le bloc de coupure comporte une paire de contacts fixes 41, 51. Chaque contact fixe est destiné coopérer avec une plage de contact du pont de contacts mobile 22. Un premier contact fixe 41 est destiné à être raccordé à la ligne de courant par une plage amont 4. Un second contact fixe 51 est destiné à être raccordé au déclencheur 7 par une plage aval 5. Chaque partie de boîtier 12 comprend un évidement de passage correspondant.The movable contact bridge 22 comprises at each end a contact pad. The breaking block comprises a pair of fixed contacts 41, 51. Each fixed contact is intended to cooperate with a contact pad of the movable contact bridge 22. A first fixed contact 41 is intended to be connected to the line of contact. current by an upstream range 4. A second fixed contact 51 is intended to be connected to the trigger 7 by a downstream range 5. Each housing portion 12 comprises a corresponding passage recess.

Ledit pont est monté pivotant entre une position d'ouverture dans laquelle les plages de contact sont écartées des contacts fixes 41, 51 et une position fermée dans laquelle elles sont en contact avec chacun des contacts fixes. Les plages de contact du pont de contact 22 sont de préférence placées symétriquement par rapport à l'axe de rotation Z.Said bridge is pivotally mounted between an open position in which the contact pads are spaced apart from the fixed contacts 41, 51 and a closed position in which they are in contact with each of the fixed contacts. The contact pads of the contact bridge 22 are preferably placed symmetrically with respect to the axis of rotation Z.

Les blocs de coupure unipolaire Bp, Ba1, Ba2, Ba3 comprennent de préférence deux chambres de coupure d'arc 24 pour l'extinction des arcs électriques. Chaque chambre de coupure 24 s'ouvre sur un volume d'ouverture entre une plage de contact du pont de contacts 22 et un contact fixe. Chaque chambre de coupure 24 est délimitée par deux parois latérales 24A, une paroi postérieure éloignée du volume d'ouverture 24B, une paroi inférieure 24C proche du contact fixe et une paroi supérieure 24D. Comme représenté sur les figures 4 à 6, chaque chambre de coupure 24 comprend un empilement d'au moins deux d'ailettes de désionisation 25 séparées les unes des autres par un espace d'échange des gaz de coupure. Chaque chambre de coupure 24 comporte au moins une sortie reliée à au moins un canal d'échappement 38, 42 des gaz de coupure.The unipolar cutoff blocks Bp, Ba1, Ba2, Ba3 preferably comprise two arcing chambers 24 for extinguishing electric arcs. Each interrupting chamber 24 opens on an opening volume between a contact pad of the contact bridge 22 and a fixed contact. Each breaking chamber 24 is delimited by two side walls 24A, a rear wall remote from the opening volume 24B, a bottom wall 24C close to the fixed contact and an upper wall 24D. As shown on Figures 4 to 6 each breaking chamber 24 comprises a stack of at least two deionization fins 25 separated from each other by a gap for exchange of the cutoff gases. Each interrupting chamber 24 comprises at least one output connected to at least one exhaust channel 38, 42 of the cutoff gases.

Les blocs de coupure unipolaires Bp, Ba1, Ba2, Ba3 sont destinés à être entraînés simultanément, et sont couplées à cette fin par au moins une tige d'entrainement 30. Comme représenté sur les figures La tige d'entrainement 30 comporte un axe longitudinal Y sensiblement parallèle à l'axe de rotation Z du pont de contacts mobile.The unipolar cutoff blocks Bp, Ba1, Ba2, Ba3 are intended to be driven simultaneously, and are coupled for this purpose by at least one drive rod 30. As shown in the figures The drive rod 30 has a longitudinal axis Y substantially parallel to the axis of rotation Z of the movable contact bridge.

Un mécanisme de commande 8 des blocs de coupure est positionné sur le bloc principal de coupure Bp. Le mécanisme de commande 8 comprend une manette 88 commandant le déplacement de la tige d'entrainement 30 par l'intermédiaire de biellettes 50. Comme représenté sur les figures 6A, 6B, lesdites biellettes transmettent un effort de commande Ft sur la tige d'entrainement 30.A control mechanism 8 of the cutoff blocks is positioned on the main cutoff block Bp. The control mechanism 8 comprises a lever 88 controlling the displacement of the drive rod 30 by means of links 50. As shown in FIGS. Figures 6A, 6B said links transmit a control force Ft on the drive rod 30.

La tige d'entrainement 30 traverse les barreaux 26 des blocs de coupure Bp, Ba1, Ba2, Ba3 via des orifices 32.The driving rod 30 passes through the bars 26 of the breaking blocks Bp, Ba1, Ba2, Ba3 via orifices 32.

Selon un mode de réalisation préféré, une seule tige d'entraînement 30 est utilisée.According to a preferred embodiment, a single drive rod 30 is used.

Un déplacement angulaire de ladite tige d'entrainement 30 entraine celui des ponts de contacts mobile 22 entre une position d'ouverture et une position de fermeture des contacts.An angular displacement of said drive rod 30 causes that of the movable contact bridges 22 between an open position and a closed position of the contacts.

Chaque partie de boîtier 12 comprend un orifice 34 en forme d'arc de cercle permettant au moins le déplacement de la tige d'entrainement 30 le traversant entre la position de passage du courant et la position d'ouverture. Avantageusement, chaque partie du boîtier 12 est moulée avec des aménagements internes permettant un positionnement relativement stable des différents éléments composant le mécanisme de coupure 20, en particulier deux logements symétriques pour chacune des chambres de coupure 24, et un logement central circulaire permettant la mise en place du barreau 26.Each housing portion 12 comprises a hole 34 in the shape of an arc of a circle allowing at least the displacement of the drive rod 30 passing through it between the current flow position and the open position. Advantageously, each part of the housing 12 is molded with internal arrangements allowing a relatively stable positioning of the various elements making up the cut-off mechanism 20, in particular two symmetrical housings for each of the cut-off chambers 24, and a circular central recess allowing the setting place of the Bar 26.

Selon un mode préférentiel de réalisation, le dispositif de coupure 600 comporte des moyens de compensation du déplacement de la tige d'entraînement 30. Les moyens de compensation comprennent une butée 60 contre laquelle vient en appui la tige d'entrainement 30 en position de fermeture.According to a preferred embodiment, the cut-off device 600 comprises means for compensating the displacement of the drive rod 30. The compensation means comprise a stop 60 against which the drive rod 30 bears in the closed position. .

Le positionnement de la butée 60 est réalisé de manière à limiter localement au niveau du premier bloc auxiliaire de coupure Ba1 le déplacement de ladite tige d'entrainement 30. Comme représenté sur la figure 6B, la butée tend à appliquer une force de compensation Fr apte à générer un couple de rotation Cr sur la tige d'entrainement 30 de manière à ce que l'axe longitudinal Y de ladite tige ne pivote pas en fin de déplacement et notamment lorsque le pont de contacts mobile 22 est dans une position de fermeture des contacts. Ainsi, contrairement aux solutions connues et tel que représenté sur les figures 6B et 7, l'axe longitudinal Y de la tige d'entrainement 30 est maintenu parallèle à l'axe de rotation Z du barreau rotatif.The positioning of the stop 60 is made so as to limit locally to the level of the first auxiliary block breaking Ba1 the displacement of said drive rod 30. As shown in FIG. Figure 6B , the abutment tends to apply a compensating force Fr capable of generating a rotation torque Cr on the drive rod 30 so that the longitudinal axis Y of said rod does not pivot at the end of displacement and in particular when the movable contact bridge 22 is in a closed position of the contacts. Thus, unlike the known solutions and as represented on the Figures 6B and 7 , the longitudinal axis Y of the drive rod 30 is kept parallel to the axis of rotation Z of the rotary bar.

Selon un premier mode particulier de réalisation de l'invention tel que représenté sur la figure 2, la butée 60 est de préférence positionnée à une extrémité de l'arc de cercle formant l'orifice 34 de manière à réduire la longueur de l'arc de cercle et le déplacement angulaire de ladite tige. Selon ce mode particulier de réalisation, la butée 60 est positionnée dans le premier bloc auxiliaire de coupure Ba1. Autrement dit, le positionnement de la butée à l'intérieur de l'orifice 34 permet réduire la course de la tige d'entrainement 30 se déplaçant à l'intérieur dudit orifice.According to a first particular embodiment of the invention as represented on the figure 2 , the stop 60 is preferably positioned at one end of the arc forming the orifice 34 so as to reduce the length of the arc of the circle and the angular displacement of said rod. According to this particular embodiment, the stop 60 is positioned in the first auxiliary block breaking Ba1. In other words, the positioning of the stop inside the orifice 34 makes it possible to reduce the stroke of the drive rod 30 moving inside said orifice.

Selon une autre mode particulier de réalisation non représenté, la butée 60 est positionnée sur un flasque 70 extérieur du dispositif de coupure, ledit flasque 70 étant positionné contre une paroi externe du boîtier 12 du premier bloc auxiliaire de coupure Ba1 bloc de coupure.According to another particular embodiment not shown, the stop 60 is positioned on an outer flange 70 of the cut-off device, said flange 70 being positioned against an outer wall of the housing 12 of the first auxiliary block breaking unit Ba1 cutoff unit.

Selon une variante de réalisation non représentée, la butée est rigide et est à hauteur ajustable. En effet, à titre d'exemple de réalisation, la butée peut comportée une tige filetée. La tige filetée est destinée collaborer avec une zone taraudée positionnée sur le flasque ou sur la paroi externe du boîtier 12 dudit bloc de coupure.According to an alternative embodiment not shown, the stop is rigid and is height adjustable. Indeed, as an exemplary embodiment, the stop may comprise a threaded rod. The threaded rod is intended to collaborate with a threaded zone positioned on the flange or on the outer wall of the housing 12 of said cutoff unit.

Selon une autre variante de réalisation non représentée, la butée comporte un moyen déformable tel que notamment un ressort.According to another variant embodiment not shown, the stop comprises a deformable means such as in particular a spring.

Claims (8)

  1. Switchgear (600) comprising
    - a main single-pole phase unit (Bp) supporting a control mechanism (8) and at least one first auxiliary single-pole phase unit (Ba1), said units being disposed side by side in a transverse direction and comprising, respectively:
    - a rotary bar (26) coupled to a moving contact bridge (22) guided in rotation about an axis of rotation (Z);
    - a pair of fixed contacts (41, 51) cooperating with said moving contact
    bridge and being linked respectively to a current input conductor (4, 5), the control mechanism (8) of the phase units (Bp, Ba1, Ba2, Ba3) comprising a handle (88) controlling at least one driving rod (30) passing through the bars (26), an angular displacement of said at least one driving rod (30) driving that of the moving contact bridges (22) between an open position and a closed position of the contacts,
    said gear being characterized in that it comprises compensation means comprising an abutment (60) against which the driving rod (30) bears in the closed position so as to:
    - locally limit, at the first auxiliary unit (Ba1), the displacement of said driving rod (30), and
    - apply a rotational torque to said rod to keep it parallel to the axis of rotation (Z).
  2. Switchgear according to Claim 1, characterized in that said at least first auxiliary phase unit (Ba1) comprises a housing (12) comprising an orifice (34) in the form of a circular arc in which the driving rod (30) is displaced between the closed and open positions, the abutment (60) being positioned in such a way as to reduce the length of the circular arc and the angular displacement of said rod in said orifice (34).
  3. Switchgear according to Claim 2, characterized in that the abutment (60) is positioned in the first single-pole phase unit (Ba1) at an end of the circular arc forming the orifice (34) so as to reduce the travel of the driving rod (30) in its displacement in the orifice (34).
  4. Switchgear according to Claim 2, characterized in that the abutment (60) is positioned on an external flange (70) of the switchgear (600), said flange (70) being positioned against an outer wall of the housing (12) of the first single-pole phase unit (Ba1).
  5. Switchgear according to any one of the preceding claims, characterized in that it comprises three auxiliary single-pole phase units (Ba1, Ba2, Ba3) disposed side by side in a transverse direction, the first auxiliary phase unit (Ba1) being separated from the other two auxiliary phase units (Ba2, Ba3) by the main phase unit (Bp) supporting the control mechanism (8) of said units.
  6. Switchgear according to any one of the preceding claims, characterized in that the abutment (60) is rigid with adjustable height.
  7. Switchgear according to any one of the preceding claims, characterized in that the abutment (60) comprises a deformable means.
  8. Switchgear according to Claim 6, characterized in that the abutment (60) comprises a spring.
EP11354062.9A 2010-12-13 2011-11-07 Switchgear having a plurality of single-pole phase units and comprising a single mechanism for actuating said phase units Active EP2463884B1 (en)

Priority Applications (1)

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PL11354062T PL2463884T3 (en) 2010-12-13 2011-11-07 Switchgear having a plurality of single-pole phase units and comprising a single mechanism for actuating said phase units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1004834A FR2968828B1 (en) 2010-12-13 2010-12-13 CUTTING DEVICE HAVING MULTIPLE UNIPOLAR CUT BLOCKS AND HAVING A SINGLE ACTUATION MECHANISM OF SAID BLOCKS

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US (1) US8664549B2 (en)
EP (1) EP2463884B1 (en)
JP (1) JP5832882B2 (en)
KR (1) KR101842717B1 (en)
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BR (1) BRPI1106774B1 (en)
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US8686304B2 (en) * 2011-12-07 2014-04-01 Eaton Corporation Electrical switching apparatus including two poles and a single operating handle
KR200484495Y1 (en) * 2014-03-31 2017-09-12 엘에스산전 주식회사 Circuit breaker
CN106876221B (en) * 2015-12-10 2018-10-12 悦动智能电器有限公司 A kind of circuit breaker operation mechanism with photoelectric sensor
JP2021077498A (en) * 2019-11-07 2021-05-20 河村電器産業株式会社 Circuit breaker

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Publication number Priority date Publication date Assignee Title
SU613415A1 (en) * 1974-12-02 1978-06-30 Предприятие П/Я А-7809 Vacuum switching apparatus
FR2683089B1 (en) * 1991-10-29 1993-12-31 Merlin Gerin OPERATING MECHANISM FOR TETRAPOLAR CIRCUIT BREAKER.
US6194983B1 (en) * 1999-08-30 2001-02-27 Eaton Corporation Molded case circuit breaker with current flow indicating handle mechanism
US6317018B1 (en) 1999-10-26 2001-11-13 General Electric Company Circuit breaker mechanism
ITMI20012325A1 (en) * 2001-11-06 2003-05-06 Abb Service Srl LOW VOLTAGE SWITCH
ITBG20050024A1 (en) * 2005-05-13 2006-11-14 Abb Service Srl SWITCH INSTALLABLE ACCORDING TO DIFFERENT OPERATIONAL CONFIGURATIONS
KR100662752B1 (en) 2005-10-04 2007-01-02 엘에스산전 주식회사 Multi pole circuit breaker
KR100689324B1 (en) * 2005-10-05 2007-03-08 엘에스산전 주식회사 Multi pole circuit breaker
US7800007B2 (en) * 2007-06-26 2010-09-21 General Electric Company Circuit breaker subassembly apparatus
KR100988100B1 (en) * 2008-07-25 2010-10-18 엘에스산전 주식회사 Mold cased circuit breaker

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PL2463884T3 (en) 2015-06-30
JP5832882B2 (en) 2015-12-16
US20120145520A1 (en) 2012-06-14
JP2012129205A (en) 2012-07-05
RU2572519C2 (en) 2016-01-20
KR101842717B1 (en) 2018-03-27
EP2463884A1 (en) 2012-06-13
CN102568868B (en) 2016-03-02
FR2968828A1 (en) 2012-06-15
BRPI1106774B1 (en) 2020-03-17
ES2534764T3 (en) 2015-04-28
KR20120065942A (en) 2012-06-21
ZA201108528B (en) 2012-07-25
CN102568868A (en) 2012-07-11
US8664549B2 (en) 2014-03-04
BRPI1106774A2 (en) 2013-05-28
RU2011150481A (en) 2013-06-20
FR2968828B1 (en) 2012-12-21

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