EP2478539A2 - Interrupter device having at least one single-pole phase unit comprising a contact bridge and circuit breaker comprising such a device - Google Patents

Interrupter device having at least one single-pole phase unit comprising a contact bridge and circuit breaker comprising such a device

Info

Publication number
EP2478539A2
EP2478539A2 EP10762947A EP10762947A EP2478539A2 EP 2478539 A2 EP2478539 A2 EP 2478539A2 EP 10762947 A EP10762947 A EP 10762947A EP 10762947 A EP10762947 A EP 10762947A EP 2478539 A2 EP2478539 A2 EP 2478539A2
Authority
EP
European Patent Office
Prior art keywords
cutoff
cut
channel
contact bridge
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10762947A
Other languages
German (de)
French (fr)
Other versions
EP2478539B1 (en
Inventor
Marc Rival
Christophe Grumel
Hervé ANGLADE
Jean-Paul Gonnet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR0904457A external-priority patent/FR2950474B1/en
Priority claimed from FR0904455A external-priority patent/FR2950473B1/en
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Priority to PL10762947T priority Critical patent/PL2478539T3/en
Publication of EP2478539A2 publication Critical patent/EP2478539A2/en
Application granted granted Critical
Publication of EP2478539B1 publication Critical patent/EP2478539B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2041—Rotating bridge
    • H01H1/2058—Rotating bridge being assembled in a cassette, which can be placed as a complete unit into a circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber

Definitions

  • the invention relates to a cut-off device having at least one unipolar breaking block.
  • Said block comprises a movable contact bridge, a pair of fixed contacts cooperating with said movable contact bridge and respectively connected to a current supply conductor.
  • Said block comprises two arc cutting chambers respectively opening on an opening volume of the contact bridge.
  • the invention also relates to a circuit breaker comprising a cut-off device.
  • Discharge gas evacuation in an electrical switchgear device is generally carried out by directly placing a drain hole on a rear face of the arc-cutting chamber.
  • the gases generated at the time of the cut through the breaking chamber pass and cool in contact with one or more deionization fins and are discharged at the bottom of the arc cutting chamber through an opening.
  • a grid preferably associated with additional filtering means allows the evacuation of gases outside the cutoff apparatus while stopping a large number of molten metal particles. Despite these precautions of use, the gases remaining strongly ionized are very polluting. This pollution can particularly deteriorate the electronic means of triggering the switchgear when they are placed near the discharge grid of an arc extension chamber.
  • the invention therefore aims to overcome the disadvantages of the state of the art, so as to provide a cut-off device comprising effective means for evacuating the cutoff gases.
  • Each cut-off chamber of the breaking device according to the invention is connected to at least one escape channel of the cutoff gases, said exhaust channels being opening on an upstream face of the casing of the cutoff block, said upstream face being positioned in contrast to another downstream face intended to be placed in contact with triggering means.
  • said exhaust gas exhaust channels meet in a common conduit opening on the upstream face of the casing of the cutoff block.
  • each arc breaking chamber comprises a stack of at least two deionization vanes separated from each other by a gas exchange space, at least one exchange space being connected to a channel of diffusion. exhaust gas cutoff.
  • said at least one gas escape channel of an arc cutting chamber passes through at least one decompression chamber comprising at least one wall covered with a metal sheet.
  • the decompression chamber is positioned under a lower wall of the arc extension chamber, the wall covered by the metal sheet being in a plane forming an angle of between 45 ° and 140 ° with respect to the direction of the arc. flow of gases.
  • a gas exhaust channel comprises a rotary valve intended to be rotated by the passage of the cutoff gases, the rotation of the valve from a first position to a second position being intended to actuate triggering means to cause the clogging. opening of the contacts of the cut-off device.
  • the movable contact bridge is rotatable and is positioned in a rotary bar having a transverse housing orifice of said contact bridge, which protrudes on either side of the bar, said rotary bar being interposed between two side faces of the casing of the cutoff block, two sealing flanges being placed respectively between the radial faces of the rotary bar and the side faces to ensure a seal between the inside and outside of the cutoff block.
  • the rotary bar comprises at least one directly connected channel between the transverse housing orifice and a radial face so that the cutoff gases can flow directly via said channel to at least one sealing flange in order to push against one of the side faces for ensure a seal.
  • said channel is opening and passes on either side of the rotary bar from a first to a second radial face, said channel opening having a longitudinal axis parallel to a longitudinal axis of the rotary bar.
  • the opening channel comprises a longitudinal axis aligned with a longitudinal axis of the rotary bar so that the cutoff gases can exert a force to push substantially aligned with the longitudinal axis of the bar and evenly distributed over the sealing flanges. .
  • the sealing flanges comprise lateral cheeks at least partially covering the longitudinal surface of the rotary bar to partially close the transverse housing hole of the bar.
  • the movable contact bridge is rotatable between an open position and a closed position of the contacts in a clockwise direction.
  • the invention relates to a circuit breaker comprising a cut-off device as defined above.
  • Said circuit breaker comprises a trigger connected to the downstream ranges of the breaking device.
  • FIG. 1 represents an overall perspective view of a circuit breaker comprising a cut-off device according to one embodiment of the invention
  • FIG. 2A represents an exploded perspective view of a circuit breaker comprising a cut-off device according to one embodiment of the invention
  • FIG. 2B represents a perspective view of a cut-off device during assembly according to one embodiment of the invention.
  • Figures 3 to 7 show perspective views of a unipolar block of cutting and a portion of its housing for a cut-off device according to a preferred embodiment of the invention
  • FIGS. 8A and 8B show sectional detail views of an exhaust gas channel of a cut-off unit according to the invention. DETAILED DESCRIPTION OF AN EMBODIMENT
  • the switchgear 100 generally a circuit breaker comprises a trigger 7 associated with a cutoff device 600.
  • the breaking device 600 comprises at least one unipolar breaking block 10.
  • the unipolar breaking block is 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 the an upstream range 4.
  • the unipolar cutoff block 10 is also called a light bulb.
  • the cutoff device 600 comprises three unipolar breaking blocks.
  • the switching device 100 is then a three-pole circuit breaker.
  • the switchgear could be a uni circuit breaker, bi or four-pole.
  • the elements making up the switching apparatus 100 will be described in relation to the use position in which the circuit breaker 100 is placed in a table, with the nose 9 comprising a vertical handle and parallel to the mounting wall, the upstream connection pads 4 on the power line located at the top and forming the face upper 74 of the cut-off device 100 and the trigger 7 at the bottom.
  • the handle is intended to control an actuating mechanism 8 of the electrical contacts. FR2010 / 000592
  • Each unipolar break block 10 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 FIG. 3, a complementary tenon / mortise type system allows the housing portions 12 to be adjusted to one another, one of the two parts (not shown) comprising lugs adapted to penetrate recesses of the other. Arrangements 8 are also made to allow the juxtaposition of the housings 12 of unipolar block 10 and their connection to a multipole circuit breaker 100.
  • the unipolar breaking block comprises a breaking mechanism 20 housed in the casing 12.
  • the cut-off 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 cutoff mechanism 20 comprises a movable contact bridge 22 having 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 current line by a pad. upstream 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 mounted between an open position in which the contact pads are spaced apart from the fixed contacts 41, 51 and a current flow position in which they are in contact with each of the fixed contacts.
  • the unipolar break block 10 comprises two arc cutting chambers 24 FR2010 / 000592
  • 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 24B remote from the opening volume, a bottom wall 24C close to the fixed contact and an upper wall 24D.
  • each interrupting chamber 24 comprises a stack of at least two deionization vanes 25 separated from each other by a gap of exchange of the cutoff gases.
  • the casing 12 of the cut-off block 10 further comprises arrangements allowing an optimization of the gas flow.
  • Each interrupting chamber 24 comprises at least one output connected to at least one exhaust channel 38, 42 of the cutoff gases.
  • Said exhaust channels 38, 42 are intended to evacuate the gases through at least one opening orifice 40 positioned on an upstream face of the housing 12 positioned opposite another downstream face. The downstream face of the housing 12 is intended to be placed in contact with the trigger 7.
  • Each arc-breaking chamber 24 preferably comprises at least one exchange space between two fins 25 connected to a gas exhaust channel 38, 42.
  • all the exchange spaces are connected to the channels of FIG. exhausting the gases 38, 42 at a zone remote from the opening volume towards the rear wall and at the side walls of the arc cutting chamber 24.
  • the movable contact bridge 22 is rotatable about a Y axis of rotation.
  • the contact areas of said bridge are preferably placed symmetrically with respect to the Y axis of rotation.
  • movable contact bridge 22 is mounted floating in a rotary bar 26 having a transverse housing orifice of said contact bridge.
  • the movable contact bridge 22 passing through the transverse housing orifice protrudes on either side of the bar 26.
  • Said rotary bar 26 is interposed between the two lateral faces 14 of the casing 12 of the cut-off block 10.
  • the mounting of the contact bridge 22 and the rotary bar 26 in a unipolar breaking block 10 is "inverted": it is desired that the lever 9 of the mechanism 8 10,000592
  • the protective cover of the protective devices of the power line can then be symmetrical.
  • a reversal of the direction of rotation of the bar 26 has been chosen, that is to say that the connection area 5 to the trigger 7 is located towards the rear of the circuit breaker 100 and the upstream connection range 4 is forward, above.
  • the movable contact bridge 22 is rotatable between an open position and a closed position of the contacts in a clockwise direction.
  • the escape of the gas from the contact connected to the downstream range 5 which would have traditionally been downwardly directed and rear of the device is brought up and the front of the cutoff unit 10.
  • the area placed at the back and bottom of the device corresponds to an area in which are placed the trigger 7 and possible supports fixing such as in particular a DIN rail.
  • the substantially parallelepipedal shape of the casing of the casing 12 of the cut-off block 10 is extended on the front side by a first exhaust gas channel 38. Said first channel makes it possible to direct the cutoff gases of the downstream range 5 is coupled to the trigger 7 towards the upper part of the cut-off device 100.
  • the cut-off gases are discharged outside the housing through a through orifice 40.
  • the positioning of the opening opening 40 in the upper part of the device cutting and especially above the upstream range 4 also reduces the risk of rebooting the arc.
  • the escape of the gases from the contact 41 connected to the upstream range 4 are also directed upwards and forward of the breaking block 10 via at least a second exhaust channel 42.
  • at least one exhaust channel 42 is positioned at least in part in the large parallel faces 14 of the housing 12 of the breaking block 10.
  • two lateral exhaust channels 42 are arranged partly outside the casing 12 of the cut-off block 10. These two channels are connected to one and the same interrupting chamber 24 Each side exhaust channel 42 is connected to PT / FR2010 / 000592
  • the portion of the external lateral flow channel 42 may preferably be hollowed into the wall of the housing 12.
  • the unipolar blocks 10 are assembled via spacers 46 to form a double envelope 48. It is advantageous to take advantage of this architecture to integrate each lateral flow channel 42 in part with the spacer 46.
  • the spacers 46 are made of molded plastic and mainly comprise a central partition 52 intended to be parallel to the large faces 14 of the cutoff blocks 10.
  • each spacer 46 includes arrangements to define in part the second lateral channels 42 of gas evacuation.
  • each lateral flow channel 42 is partially etched in the large outer face 14 of the housing 12 of the bulb 10, between the two through-holes 44A, 44B, and a corresponding element 68, etching and / or protruding contour on the central partition 52.
  • the unipolar cutoff blocks 10 are intended to be driven simultaneously, and are coupled for this purpose by at least one rod 30, in particular at the bar 26, and for example by orifices 32 forming the limit stops of the movable contact bridge. 22.
  • a single drive rod 30 is used and each housing portion 12 comprises an orifice 34 in the shape of a circular arc allowing at least the mobilization of the rod 30 passing through it between the position of current flow and 10,000592
  • said at least second exhaust gas channel 42 passes through at least one decompression chamber 43 comprising at least one wall covered by a metal sheet 85.
  • the inner wall covered with said sheet is part of a decompression chamber 43.
  • This metal sheet 85 constitutes a particle trap which aims on the one hand to capture the metal particles from the cut, in order to protect thermally plastic parts located downstream of the trap and on the other hand to reduce the temperature of the cutoff gases.
  • the particle trap protects the plastic parts of the channel located behind said at least one metal sheet 85 and reinforces the sealing of the joint plane of the housing 12.
  • At least one metal sheet 85 at least partially covering the inner wall of the gas exhaust channel allows good capture of the molten steel and copper balls, resulting from the erosion of the separators, the contacts and drivers during the break.
  • Said at least one metal sheet has a minimum thickness to prevent its piercing by the molten balls.
  • the minimum thickness is preferably between 0.3 and 3 mm and is to be adapted according to the cutoff energy of the product.
  • Said at least one metal sheet 85 is made of steel, copper or an iron-based alloy.
  • the inner wall of the exhaust channel covered with said at least one metal sheet 85 of the particle trap forms an angle ⁇ of between 45 ° and 140 ° with respect to the direction of gas flow.
  • Said at least one metal sheet 85 at least partially covers the inner surface of the discharge channel.
  • the metal sheet extends along the longitudinal axis of the channel.
  • the total length L of internal wall covered with said at least one metal sheet 85 in the direction of flow is at least equal to the square root of the weakest flow section S of said channel measured upstream of said sheet. The greatest possible length is desirable to reduce the temperature of the gases.
  • the minimum length required is expressed according to the following equation: L ⁇ VS mini
  • said at least one metal sheet 85 extends over the internal perimeter P of the exhaust channel in a direction perpendicular to the direction of the gas flow.
  • the minimum required distance I over which said sheet extends is expressed according to the following equation:
  • Pm is the average perimeter of the gas exhaust channel in which the particle trap is located.
  • Said decompression chamber is preferably positioned as close as possible to the exit of the arc cutting chamber.
  • the decompression chamber is placed under the bottom wall of the arc extension chamber 24.
  • the gas exhaust ducts 38 and 42 respectively of a first and second breaking chamber 24 are of different lengths, the cutoff gases flowing in a first exhaust gas channel being intended for Venturi effect the gases flowing in a second channel.
  • a gas exhaust channel 38 comprises a rotary valve 45 intended to be rotated by the passage of the cutoff gases. The rotation of the valve from a first position to a second position is intended to actuate triggering means of the cutoff device to cause the opening of the contacts.
  • 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.
  • two sealing flanges 27 are respectively placed between the radial faces of the rotary bar 26 and the lateral faces 14 in order to ensure a seal between the inside and the outside of the cutoff block.
  • the sealing flanges 27 are of cylindrical shape and can take the form of a washer.
  • the rotary bar 26 comprises at least one channel 29 in direct connection between the transverse housing orifice and a lateral face 4 so that the cutoff gases can flow directly via said channel to at least one sealing flange 27 in order to push it against one of the lateral faces 14 to ensure a seal.
  • the channel 29 of the rotary bar 26 is preferably opening and passes on either side of the rotary bar 26 from a first to a second radial face.
  • Said opening channel 29 comprises a longitudinal axis parallel to a longitudinal axis of the rotary bar 26.
  • the opening channel 29 preferably comprises a longitudinal axis aligned with a longitudinal axis of the rotary bar 26 so that the cutoff gases can exerting a thrust force substantially aligned with the longitudinal axis of the bar and evenly distributed on the sealing flanges.
  • said flanges comprise lateral cheeks at least partially covering the longitudinal surface of the rotary bar 26 to partially close the transverse housing orifice of the bar 26.
  • circuit breaker 100 makes it possible to best meet the following antinomic industrial constraints: - the same architecture can be used for the entire range up to
  • the trigger 7 can be connected from below to the downstream range of the cut-off device 600, which gives the best accessibility to the connection screws by reversing the direction of rotation of the rotary cutoff bridge 22;
  • the nose 9 of the cut-off device 600 is centered, in particular at 42.5 mm, thanks to the reversal of the direction of rotation in the cut-off blocks 10, which makes it possible to use symmetrical plastrons in the cabinets; 10,000592
  • the cutoff gases are not evacuated next to the trip unit 7, which limits the pollution on this element which can be sensitive, in particular in its electronic version, and frees up the volume;
  • the exhaust gas cut is also not made under the connections 4, 5 of the circuit breaker 100, which reduces the risk of ignition in cut.

Abstract

The invention relates to an interrupter device (600) having at least one single-pole phase unit (10), said unit including a movable contact bridge (22), a pair of stationary contacts (41, 51) engaging with said movable contact bridge and connected, respectively, to a current distribution conductor (4, 5) and two arc interrupter chambers (24) opening out onto an open space of the contact bridge (22), and including a stack of at least two de-ionizing fins (25) separated from one another by a gas exchange space. Each interrupter chamber (24) is connected to at least one interrupter gas exhaust channel (38, 42), said exhaust channels discharging onto an upstream surface of the phase unit (10) housing (12), said upstream surface being positioned opposite another downstream surface intended to be placed in contact with triggering means (7).

Description

DISPOSITIF DE COUPURE AYANT AU MOINS UN BLOC DE COUPURE UNIPOLAIRE COMPORTANT UN PONT DE CONTACTS ET DISJONCTEUR COMPORTANT UN TEL DISPOSITF  CUTTING DEVICE HAVING AT LEAST ONE UNIPOLAR CUTTING BLOCK HAVING A CONTACTS BRIDGE AND CIRCUIT BREAKER HAVING SUCH A PROVISION
DOMAINE TECHNIQUE DE L'INVENTION L'invention est relative à un dispositif de coupure ayant au moins un bloc de coupure unipolaire. Ledit bloc comprend un pont de contacts mobile, une paire de contacts fixes coopérant avec ledit pont de contacts mobile et reliés respectivement à un conducteur d'amenée de courant. Ledit bloc comprend deux chambres de coupure d'arc s'ouvrant respectivement sur un volume d'ouverture du pont de contacts. TECHNICAL FIELD OF THE INVENTION The invention relates to a cut-off device having at least one unipolar breaking block. Said block comprises a movable contact bridge, a pair of fixed contacts cooperating with said movable contact bridge and respectively connected to a current supply conductor. Said block comprises two arc cutting chambers respectively opening on an opening volume of the contact bridge.
L'invention est aussi relative à un disjoncteur comportant un dispositif de coupure. The invention also relates to a circuit breaker comprising a cut-off device.
ETAT DE LA TECHNIQUE STATE OF THE ART
L'évacuation des gaz de coupure dans un appareil de coupure électrique, notamment un disjoncteur comportant au moins une chambre de coupure d'arc est généralement réalisée en plaçant directement un trou d'évacuation sur une face postérieure de la chambre coupure d'arc. Les gaz générés au moment de la coupure traversent la chambre de coupure, passent et se refroidissent au contact d'une ou plusieurs ailettes de désionisation et sont évacués au fond de la chambre coupure d'arc par une ouverture. Une grille associée de préférence à des moyens de filtrage supplémentaires permet l'évacuation des gaz à l'extérieur de l'appareil de coupure tout en stoppant un grand nombre de particules métalliques en fusion. Malgré ces précautions d'usage, les gaz restant fortement ionisés sont très polluants. Cette pollution peut notamment détériorer les moyens électroniques de déclenchement de l'appareil de coupure lorsqu'ils sont placés à proximité de la grille d'évacuation d'une chambre d'extension d'arc. En outre, lorsque les gaz sont évacués dans une zone proche d'un conducteur d'amenée de courant dans le appareil de coupure, des phénomènes de réamorçage électriques pendant la coupure peuvent être observés. Pour remédier à ces problèmes, certaines solutions notamment décrites dans le document US5731561 , ou dans un brevet de la demanderesse EP 667179, suppriment toute évacuation des gaz de coupure vers l'extérieur du disjoncteur. On parle alors d'appareil de coupure sans manifestation extérieure. Les chambres d'extension d'arc sont reliées à des canaux de circulation des gaz à l'intérieur du dispositif de coupure. Le cheminement plus ou moins long des gaz de coupure à l'intérieur d'un volume fermé autorise théoriquement leur refroidissement suffisant. Ces solutions présentent cependant l'inconvénient de générer de très fortes pressions à l'intérieur du boîtier du dispositif de coupure. En effet, les gaz de coupure confinés au cours de leur refroidissement génèrent des surpressions importantes à l'intérieur du boîtier, surpressions pouvant provoquer l'éclatement du boîtier du dispositif de coupure. Le dimensionnement des parois du boîtier ainsi que sa conception globale doivent alors être faits en prenant en compte ces nouvelles contraintes. EXPOSE DE L'INVENTION Discharge gas evacuation in an electrical switchgear device, in particular a circuit breaker comprising at least one arc-breaking chamber, is generally carried out by directly placing a drain hole on a rear face of the arc-cutting chamber. The gases generated at the time of the cut through the breaking chamber, pass and cool in contact with one or more deionization fins and are discharged at the bottom of the arc cutting chamber through an opening. A grid preferably associated with additional filtering means allows the evacuation of gases outside the cutoff apparatus while stopping a large number of molten metal particles. Despite these precautions of use, the gases remaining strongly ionized are very polluting. This pollution can particularly deteriorate the electronic means of triggering the switchgear when they are placed near the discharge grid of an arc extension chamber. In addition, when the gases are discharged in an area close to a current lead in the switchgear, electrical rebooting phenomena during the break can be observed. To remedy these problems, some solutions described in particular in US5731561, or in a patent of Applicant EP 667179, eliminate any evacuation of cutoff gases to the outside of the circuit breaker. This is called a cut-off device without external manifestation. The arc extension chambers are connected to gas flow channels within the cut-off device. The more or less long path of the cutoff gases inside a closed volume theoretically authorizes their sufficient cooling. These solutions, however, have the disadvantage of generating very high pressures inside the casing of the cut-off device. Indeed, the cutoff gases confined during their cooling generate significant overpressures inside the housing, overpressures may cause bursting of the casing of the cutoff device. The design of the walls of the housing as well as its overall design must then be made taking into account these new constraints. SUMMARY 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 des moyens efficaces d'évacuation des gaz de coupure. The invention therefore aims to overcome the disadvantages of the state of the art, so as to provide a cut-off device comprising effective means for evacuating the cutoff gases.
Chaque chambre de coupure du dispositif de coupure selon l'invention est reliée à au moins un canal d'échappement des gaz de coupure, lesdits canaux d'échappement étant débouchant sur une face amont du boîtier du bloc de coupure, ladite face amont étant positionnée à l'opposé d'une autre face aval destinée à être placée en contact avec des moyens de déclenchement. Each cut-off chamber of the breaking device according to the invention is connected to at least one escape channel of the cutoff gases, said exhaust channels being opening on an upstream face of the casing of the cutoff block, said upstream face being positioned in contrast to another downstream face intended to be placed in contact with triggering means.
Selon un mode de développement, lesdits canaux d'échappement des gaz de coupure se réunissent dans un conduit commun débouchant sur la face amont du boîtier du bloc de coupure. According to a mode of development, said exhaust gas exhaust channels meet in a common conduit opening on the upstream face of the casing of the cutoff block.
Avantageusement, les canaux d'échappement des gaz coupure respectivement d'une première et seconde chambre de coupure sont de longueur différente, les gaz de coupure circulant dans un premier canal d'échappement des gaz étant destinés à aspirer par effet Venturi les gaz circulant dans un second canal. De préférence, chaque chambre de coupure d'arc comporte un empilement d'au moins deux d'ailettes de désionisation séparées les unes des autres par un espace d'échange des gaz, au moins un espace d'échange étant relié à un canal d'échappement des gaz de coupure. Selon un mode particulier de réalisation, ledit au moins un canal d'échappement des gaz d'une chambre de coupure d'arc traverse au moins une chambre de décompression comportant au moins une paroi recouverte d'une feuille métallique. Advantageously, the exhaust channels of the cutoff gas respectively of a first and second breaking chamber are of different length, the cutoff gases flowing in a first exhaust gas channel being intended to suck by the Venturi effect the gases flowing in a second channel. Preferably, each arc breaking chamber comprises a stack of at least two deionization vanes separated from each other by a gas exchange space, at least one exchange space being connected to a channel of diffusion. exhaust gas cutoff. According to a particular embodiment, said at least one gas escape channel of an arc cutting chamber passes through at least one decompression chamber comprising at least one wall covered with a metal sheet.
Avantageusement, la chambre de décompression est positionnée sous une paroi inférieure de la chambre d'extension d'arc, la paroi recouverte par la feuille métallique étant dans un pian formant un angle compris entre 45° et 140° par rapport au sens de l'écoulement des gaz. Advantageously, the decompression chamber is positioned under a lower wall of the arc extension chamber, the wall covered by the metal sheet being in a plane forming an angle of between 45 ° and 140 ° with respect to the direction of the arc. flow of gases.
Avantageusement, la paroi recouverte par la feuille métallique est dans un plan perpendiculaire au sens de l'écoulement des gaz. Avantageusement, un canal d'échappement des gaz comporte un clapet rotatif destiné à être entraîné en rotation par le passage des gaz de coupure, la rotation du clapet d'une première position vers une seconde position étant destinée actionner des moyens de déclenchement pour provoquer l'ouverture des contacts du dispositif de coupure. Selon un mode particulier de réalisation, le pont de contact mobile est rotatif et est positionné dans un barreau rotatif ayant un orifice transversal de logement dudit pont de contacts, lequel fait saillie de part et d'autre du barreau, ledit barreau rotatif étant intercalé entre deux faces latérales du boîtier du bloc de coupure, deux flasques d'étanchéité étant placés respectivement entre les faces radiales du barreau rotatif et les faces latérales afin d'assurer une étanchéité entre l'intérieur et l'extérieur du bloc de coupure. Advantageously, the wall covered by the metal sheet is in a plane perpendicular to the direction of the gas flow. Advantageously, a gas exhaust channel comprises a rotary valve intended to be rotated by the passage of the cutoff gases, the rotation of the valve from a first position to a second position being intended to actuate triggering means to cause the clogging. opening of the contacts of the cut-off device. According to a particular embodiment, the movable contact bridge is rotatable and is positioned in a rotary bar having a transverse housing orifice of said contact bridge, which protrudes on either side of the bar, said rotary bar being interposed between two side faces of the casing of the cutoff block, two sealing flanges being placed respectively between the radial faces of the rotary bar and the side faces to ensure a seal between the inside and outside of the cutoff block.
De préférence, barreau rotatif comporte au moins un canal en liaison direct entre l'orifice transversal de logement et une face radiale de manière à ce que les gaz de coupure puissent circuler directement via ledit canal vers au moins un flasque d'étanchéité afin de le pousser contre une des faces latérales pour assurer une étanchéité. Preferably, the rotary bar comprises at least one directly connected channel between the transverse housing orifice and a radial face so that the cutoff gases can flow directly via said channel to at least one sealing flange in order to push against one of the side faces for ensure a seal.
Avantageusement, ledit canal est débouchant et traverse de part et d'autre le barreau rotatif d'une première à une seconde face radiale, ledit canal débouchant comportant un axe longitudinal parallèle à un axe longitudinal du barreau rotatif. Avantageusement, le canal débouchant comporte un axe longitudinal aligné avec un axe longitudinal du barreau rotatif de manière à ce que les gaz de coupure puissent exercer une force de pousser sensiblement alignée avec l'axe longitudinal du barreau et répartie uniformément sur les flaques d'étanchéité. Advantageously, said channel is opening and passes on either side of the rotary bar from a first to a second radial face, said channel opening having a longitudinal axis parallel to a longitudinal axis of the rotary bar. Advantageously, the opening channel comprises a longitudinal axis aligned with a longitudinal axis of the rotary bar so that the cutoff gases can exert a force to push substantially aligned with the longitudinal axis of the bar and evenly distributed over the sealing flanges. .
De préférence, les flasques d'étanchéité comportent des joues latérales recouvrant au moins partiellement la surface longitudinale du barreau rotatif pour fermer partiellement l'orifice transversal de logement du barreau. Preferably, the sealing flanges comprise lateral cheeks at least partially covering the longitudinal surface of the rotary bar to partially close the transverse housing hole of the bar.
De préférence, le pont de contact mobile est rotatif entre une position d'ouverture et une position de fermeture des contacts dans un sens horaire. Preferably, the movable contact bridge is rotatable between an open position and a closed position of the contacts in a clockwise direction.
L'invention est relative à un disjoncteur comportant un dispositif de coupure tel que défini ci-dessus. Ledit disjoncteur comporte un déclencheur connecté aux plages aval du dispositif de coupure. The invention relates to a circuit breaker comprising a cut-off device as defined above. Said circuit breaker comprises a trigger connected to the downstream ranges of the breaking device.
BREVE DESCRIPTION DES FIGURES BRIEF 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 : 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:
La figure 1 représente une vue d'ensemble en perspective d'un disjoncteur comportant un dispositif de coupure selon un mode de réalisation de l'invention ; FIG. 1 represents an overall perspective view of a circuit breaker comprising a cut-off device according to one embodiment of the invention;
La figure 2A représente une vue éclatée en perspective d'un disjoncteur comportant un dispositif de coupure selon un mode de réalisation de l'invention ; FIG. 2A represents an exploded perspective view of a circuit breaker comprising a cut-off device according to one embodiment of the invention;
La figure 2B représente une vue en perspective d'un dispositif de coupure en cours d'assemblage selon un mode de réalisation de l'invention ; FIG. 2B represents a perspective view of a cut-off device during assembly according to one embodiment of the invention;
Les figures 3 à 7 montrent des vues en perspective d'un bloc unipolaire de coupure et une partie de son boîtier pour un dispositif de coupure selon un mode de réalisation préféré de l'invention ; Figures 3 to 7 show perspective views of a unipolar block of cutting and a portion of its housing for a cut-off device according to a preferred embodiment of the invention;
Les figures 8A et 8B montrent des vues de détail en coupe d'un canal d'échappement des gaz d'un bloc de coupure selon l'invention. DESCRIPTION DETAILLEE D'UN MODE DE REALISATION FIGS. 8A and 8B show sectional detail views of an exhaust gas channel of a cut-off unit according to the invention. DETAILED DESCRIPTION OF AN EMBODIMENT
Selon un mode de réalisation de l'invention, l'appareil de coupure 100, généralement un disjoncteur comporte un déclencheur 7 associé à un dispositif de coupure 600. According to one embodiment of the invention, the switchgear 100, generally a circuit breaker comprises a trigger 7 associated with a cutoff device 600.
Le dispositif de coupure 600 comprend au moins un bloc de coupure unipolaire 10. Le bloc de coupure unipolaire est 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. The breaking device 600 comprises at least one unipolar breaking block 10. The unipolar breaking block is 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 the an upstream range 4. The unipolar cutoff block 10 is also called a light bulb.
Selon un mode préférentiel de réalisation de l'invention tel que représenté sur la figure 2A, le dispositif de coupure 600 comporte trois blocs de coupure unipolaire. L'appareil de coupure 100 est alors un disjoncteur tripolaire. Selon d'autres modes de réalisations non représentés, l'appareil de coupure pourrait être un disjoncteur uni, bi ou tétrapolaire. According to a preferred embodiment of the invention as shown in Figure 2A, the cutoff device 600 comprises three unipolar breaking blocks. The switching device 100 is then a three-pole circuit breaker. According to other embodiments not shown, the switchgear could be a uni circuit breaker, bi or four-pole.
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 10 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 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. FR2010/000592 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 10 forming the breaking device 600, will be described in relation to the use position in which the circuit breaker 100 is placed in a table, with the nose 9 comprising a vertical handle and parallel to the mounting wall, the upstream connection pads 4 on the power line located at the top and forming the face upper 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 handle is intended to control an actuating mechanism 8 of the electrical contacts. FR2010 / 000592
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Chaque bloc de coupure unipolaire 10 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 break block 10 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 3, 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 de l'autre. Des aménagements 8 sont par ailleurs réalisés afin de permettre la juxtaposition des boîtiers 12 de bloc unipolaire 10 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 FIG. 3, a complementary tenon / mortise type system allows the housing portions 12 to be adjusted to one another, one of the two parts (not shown) comprising lugs adapted to penetrate recesses of the other. Arrangements 8 are also made to allow the juxtaposition of the housings 12 of unipolar block 10 and their connection to a multipole circuit breaker 100.
Le 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 à 7, 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. Le mécanisme de coupure 20 comprend un pont de contact mobile 22 comportant 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. Ledit pont est monté entre une position d'ouverture dans laquelle les plages de contact sont écartées des contacts fixes 41 , 51 et une position de passage de courant dans laquelle elles sont en contact avec chacun des contacts fixes. The unipolar breaking block comprises a breaking mechanism 20 housed in the casing 12. According to a particular embodiment illustrated in FIGS. 4 to 7, the cut-off 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. The cutoff mechanism 20 comprises a movable contact bridge 22 having 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 current line by a pad. upstream 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 mounted between an open position in which the contact pads are spaced apart from the fixed contacts 41, 51 and a current flow position in which they are in contact with each of the fixed contacts.
Le bloc de coupure unipolaire 10 comprend deux chambres de coupure d'arc 24 FR2010/000592 The unipolar break block 10 comprises two arc cutting chambers 24 FR2010 / 000592
7  7
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 24B éloignée du volume d'ouverture, 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. for extinction of 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 24B remote from the opening volume, a bottom wall 24C close to the fixed contact and an upper wall 24D. As shown in FIGS. 4 to 6, each interrupting chamber 24 comprises a stack of at least two deionization vanes 25 separated from each other by a gap of exchange of the cutoff gases.
Selon un mode préférentiel de réalisation, le boîtier 12 du bloc de coupure 10 comprend en outre des aménagements permettant une optimisation de l'écoulement des gaz. Chaque chambre de coupure 24 comporte au moins une sortie reliée à au moins un canal d'échappement 38, 42 des gaz de coupure. Lesdits canaux d'échappement 38, 42 sont destinés évacuer les gaz par au moins un orifice débouchant 40 positionné sur une face amont du boîtier 12 positionnée à l'opposé d'une autre face aval. La face aval du boîtier 12 est destinée à être placée en contact avec le déclencheur 7. According to a preferred embodiment, the casing 12 of the cut-off block 10 further comprises arrangements allowing an optimization of the gas flow. Each interrupting chamber 24 comprises at least one output connected to at least one exhaust channel 38, 42 of the cutoff gases. Said exhaust channels 38, 42 are intended to evacuate the gases through at least one opening orifice 40 positioned on an upstream face of the housing 12 positioned opposite another downstream face. The downstream face of the housing 12 is intended to be placed in contact with the trigger 7.
Chaque chambre de coupure d'arc 24 comporte de préférence au moins un espace d'échange entre deux ailette 25 relié à un canal d'échappement des gaz 38, 42. De préférence, tous les espaces d'échange sont reliés aux canaux d'échappement des gaz 38, 42 au niveau d'une zone éloignée du volume d'ouverture vers la paroi postérieure et au niveau des parois latérales de la chambre de coupure d'arc 24. Each arc-breaking chamber 24 preferably comprises at least one exchange space between two fins 25 connected to a gas exhaust channel 38, 42. Preferably, all the exchange spaces are connected to the channels of FIG. exhausting the gases 38, 42 at a zone remote from the opening volume towards the rear wall and at the side walls of the arc cutting chamber 24.
Selon un mode particulier de réalisation, le pont de contacts mobile 22 est rotatif autour d'un d'axe de rotation Y. Les plages de contacts dudit pont sont de préférence placées de manière symétrique par rapport à l'axe de rotation Y. Le pont de contact mobile 22 est monté flottant dans un barreau rotatif 26 ayant un orifice transversal de logement dudit pont de contacts. Le pont de contact mobile 22 passant à travers l'orifice transversal de logement fait saillie de part et d'autre du barreau 26. Ledit barreau rotatif 26 est intercalé entre les deux faces latérales 14 du boîtier 12 bloc de coupure 10. En outre, selon ce mode de réalisation, le montage du pont de contact 22 et du barreau rotatif 26 dans un bloc de coupure unipolaire 10 est « inversé » : il est souhaité que la manette 9 du mécanisme 8 10 000592 According to a particular embodiment, the movable contact bridge 22 is rotatable about a Y axis of rotation. The contact areas of said bridge are preferably placed symmetrically with respect to the Y axis of rotation. movable contact bridge 22 is mounted floating in a rotary bar 26 having a transverse housing orifice of said contact bridge. The movable contact bridge 22 passing through the transverse housing orifice protrudes on either side of the bar 26. Said rotary bar 26 is interposed between the two lateral faces 14 of the casing 12 of the cut-off block 10. In addition, according to this embodiment, the mounting of the contact bridge 22 and the rotary bar 26 in a unipolar breaking block 10 is "inverted": it is desired that the lever 9 of the mechanism 8 10,000592
8  8
d'actionnement des contacts (voir figures 1et 2A) soit centrée sur le dispositif de coupure 600 du disjoncteur 100 en fonctionnement, le plastron de protection des appareils de protection de la ligne électrique pouvant alors être symétrique. A cette fin, une inversion du sens de rotation du barreau 26 a été choisie, c'est-à- dire que la plage de raccordement 5 vers le déclencheur 7 est localisée vers l'arrière du disjoncteur 100 et la plage de raccordement amont 4 est vers l'avant, au-dessus. Ainsi, comme représenté sur la figure 4,le pont de contact mobile 22 est rotatif entre une position d'ouverture et une position de fermeture des contacts dans un sens horaire. Ainsi, dans ce mode de réalisation préféré dans lequel le sens de rotation du pont de contact rotatif est inversé, l'échappement des gaz du contact relié à la plage aval 5 qui aurait du de manière traditionnelle, être dirigé vers le bas et l'arrière de l'appareil est ramené vers le haut et l'avant du bloc de coupure 10. La zone placée à l'arrière et en bas de l'appareil correspond à une zone dans laquelle sont placés le déclencheur 7 et d'éventuels supports de fixation tel que notamment un rail DIN. En particulier, la forme sensiblement parallélépipédique de l'enveloppe du boîtier 12 du bloc de coupure 10 est prolongée sur le côté avant par un premier canal d'échappement des gaz 38. Ledit premier canal permet de diriger les gaz de coupure de la plage aval 5 couplée au déclencheur 7 vers la partie supérieure de l'appareil de coupure 100. Les gaz de coupure sont évacués à l'extérieur du boîtier à travers un orifice débouchant 40. Le positionnement de l'orifice débouchant 40 dans la partie haute du dispositif de coupure et notamment au dessus de la plage amont 4 permet aussi de réduire des risques de réamorçage de l'arc. contact actuation (see Figures 1 and 2A) is centered on the cut-off device 600 of the circuit breaker 100 in operation, the protective cover of the protective devices of the power line can then be symmetrical. To this end, a reversal of the direction of rotation of the bar 26 has been chosen, that is to say that the connection area 5 to the trigger 7 is located towards the rear of the circuit breaker 100 and the upstream connection range 4 is forward, above. Thus, as shown in FIG. 4, the movable contact bridge 22 is rotatable between an open position and a closed position of the contacts in a clockwise direction. Thus, in this preferred embodiment in which the direction of rotation of the rotating contact bridge is reversed, the escape of the gas from the contact connected to the downstream range 5 which would have traditionally been downwardly directed and rear of the device is brought up and the front of the cutoff unit 10. The area placed at the back and bottom of the device corresponds to an area in which are placed the trigger 7 and possible supports fixing such as in particular a DIN rail. In particular, the substantially parallelepipedal shape of the casing of the casing 12 of the cut-off block 10 is extended on the front side by a first exhaust gas channel 38. Said first channel makes it possible to direct the cutoff gases of the downstream range 5 is coupled to the trigger 7 towards the upper part of the cut-off device 100. The cut-off gases are discharged outside the housing through a through orifice 40. The positioning of the opening opening 40 in the upper part of the device cutting and especially above the upstream range 4 also reduces the risk of rebooting the arc.
Par ailleurs, avantageusement, l'échappement des gaz du contact 41 relié à la plage amont 4 sont eux aussi dirigés vers le haut et l'avant du bloc de coupure 10 via au moins un second canal d'échappement 42. En particulier, ledit au moins canal d'échappement 42 est positionné au moins en partie dans les grandes faces parallèles 14 du boîtier 12 du bloc de coupure 10. Furthermore, advantageously, the escape of the gases from the contact 41 connected to the upstream range 4 are also directed upwards and forward of the breaking block 10 via at least a second exhaust channel 42. at least one exhaust channel 42 is positioned at least in part in the large parallel faces 14 of the housing 12 of the breaking block 10.
Comme représenté sur les figures 3 et 5, selon un mode de développement deux canaux d'échappement latéral 42 sont aménagés en partie à l'extérieur du boîtier 12 du bloc de coupure 10. Ces deux canaux sont reliés à une même chambre de coupure 24. Chaque canal d'échappement latéral 42 est relié à P T/FR2010/000592 As shown in FIGS. 3 and 5, according to a development mode, two lateral exhaust channels 42 are arranged partly outside the casing 12 of the cut-off block 10. These two channels are connected to one and the same interrupting chamber 24 Each side exhaust channel 42 is connected to PT / FR2010 / 000592
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l'intérieur du boîtier 12 par deux orifices 44A, 44B. La partie du canal d'écoulement latéral 42 externe peut de préférence être creusé dans la paroi du boîtier 12. inside the housing 12 by two orifices 44A, 44B. The portion of the external lateral flow channel 42 may preferably be hollowed into the wall of the housing 12.
Comme, selon un mode particulier de réalisation l'invention, tel que notamment décrit dans la demande de brevet français déposée ce jour au nom de la Demanderesse et intitulée : « Entretoise fonctionnelle de séparation des ampoules dans un dispositif de coupure multipolaire et disjoncteur », les blocs unipolaires 10 sont assemblés par l'intermédiaire d'entretoises 46 pour former une double enveloppe 48. Il est avantageux de tirer parti de cette architecture pour intégrer chaque canal d'écoulement latéral 42 en partie à l'entretoise 46. En particulier, tel qu'illustré à les figure 2A et 2B, les entretoises 46 sont en plastique moulé et comprennent principalement une cloison centrale 52, destinée à être parallèle aux grandes faces 14 des blocs de coupure 10. La juxtaposition de deux entretoises 46 définit ainsi une cavité 56 dans laquelle vient se loger un bloc de coupure unipolaire 10 ; avantageusement, deux rebords de fond 54 opposés de chaque entretoise 46 referment la cavité 56 sur son arrière de façon sensiblement étanche lors du serrage des entretoises 46 l'une sur l'autre. Chaque entretoise 46 comprend des aménagements permettant de définir en parti les second canaux latéral 42 d'évacuation des gaz. Avantageusement, chaque canal d'écoulement latéral 42 est partiellement gravé dans la grande face externe 14 du boîtier 12 de l'ampoule 10, entre les deux orifices de passage 44A, 44B, et un élément correspondant 68, gravure et/ou contour en saillie, sur la cloison centrale 52. Au moment de la juxtaposition et du serrage de l'entretoise 46 sur l'ampoule 10, il est alors possible de diriger les gaz de l'orifice d'évacuation 44A à l'orifice haut 44B le long de la cloison 52. As, according to a particular embodiment of the invention, such as in particular described in the French patent application filed today in the name of the Applicant and entitled: "Functional spacer separation of the ampoules in a multipole cut-off device and circuit breaker", the unipolar blocks 10 are assembled via spacers 46 to form a double envelope 48. It is advantageous to take advantage of this architecture to integrate each lateral flow channel 42 in part with the spacer 46. In particular, As illustrated in FIGS. 2A and 2B, the spacers 46 are made of molded plastic and mainly comprise a central partition 52 intended to be parallel to the large faces 14 of the cutoff blocks 10. The juxtaposition of two spacers 46 thus defines a cavity 56 in which is housed a unipolar break block 10; advantageously, two opposing bottom flanges 54 of each spacer 46 close the cavity 56 on its rear in a substantially watertight manner when the spacers 46 are tightened one on the other. Each spacer 46 includes arrangements to define in part the second lateral channels 42 of gas evacuation. Advantageously, each lateral flow channel 42 is partially etched in the large outer face 14 of the housing 12 of the bulb 10, between the two through-holes 44A, 44B, and a corresponding element 68, etching and / or protruding contour on the central partition 52. At the time of the juxtaposition and the clamping of the spacer 46 on the bulb 10, it is then possible to direct the gas from the discharge orifice 44A to the upper orifice 44B along from the partition 52.
Les blocs de coupure unipolaires 10 sont destinés à être entraînés simultanément, et sont couplées à cette fin par au moins une tige 30, notamment au niveau du barreau 26, et par exemple par des orifices 32 formant les butées de limitation du pont de contacts mobile 22. Selon un mode de réalisation préféré, une seule tige d'entraînement 30 est utilisée et chaque partie de boîtier 12 comprend un orifice 34 en forme d'arc de cercle permettant au moins la mobilisation de la tige 30 le traversant entre la position de passage du courant et 10 000592 The unipolar cutoff blocks 10 are intended to be driven simultaneously, and are coupled for this purpose by at least one rod 30, in particular at the bar 26, and for example by orifices 32 forming the limit stops of the movable contact bridge. 22. According to a preferred embodiment, a single drive rod 30 is used and each housing portion 12 comprises an orifice 34 in the shape of a circular arc allowing at least the mobilization of the rod 30 passing through it between the position of current flow and 10,000592
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la position d'ouverture. the opening position.
Selon un mode particulier de réalisation l'invention tel que représenté sur les figures 5 à 7, ledit au moins second canal d'échappement des gaz 42 traverse au moins une chambre de décompression 43 comportant au moins une paroi recouverte par une feuille métallique 85. According to a particular embodiment of the invention as represented in FIGS. 5 to 7, said at least second exhaust gas channel 42 passes through at least one decompression chamber 43 comprising at least one wall covered by a metal sheet 85.
De préférence, la paroi interne recouverte de ladite feuille fait partie d'une chambre de décompression 43. Cette feuille métallique 85 constitue un piège à particules qui a pour objectif d'une part de capter les particules métalliques issues de la coupure, afin de protéger thermiquement les parties plastiques situées en aval du piège et d'autre part de diminuer la température des gaz de coupure. En outre, le piège à particule protège les parties plastiques du canal situées derrière ladite au moins une feuille métallique 85 et renforce l'étanchéité du plan de joint du boîtier 12. Preferably, the inner wall covered with said sheet is part of a decompression chamber 43. This metal sheet 85 constitutes a particle trap which aims on the one hand to capture the metal particles from the cut, in order to protect thermally plastic parts located downstream of the trap and on the other hand to reduce the temperature of the cutoff gases. In addition, the particle trap protects the plastic parts of the channel located behind said at least one metal sheet 85 and reinforces the sealing of the joint plane of the housing 12.
L'utilisation d'au moins une feuille métallique 85 recouvrant au moins partiellement la paroi interne du canal d'échappement des gaz permet une bonne captation des billes d'acier et de cuivre en fusion, résultant de l'érosion des séparateurs, des contacts et des conducteurs lors de la coupure. Ladite au moins une feuille métallique comporte une épaisseur minimale pour éviter son transpercement par les billes en fusion. L'épaisseur minimale est de préférence comprise entre 0,3 et 3 mm et est à adapter en fonction de l'énergie de coupure du produit. The use of at least one metal sheet 85 at least partially covering the inner wall of the gas exhaust channel allows good capture of the molten steel and copper balls, resulting from the erosion of the separators, the contacts and drivers during the break. Said at least one metal sheet has a minimum thickness to prevent its piercing by the molten balls. The minimum thickness is preferably between 0.3 and 3 mm and is to be adapted according to the cutoff energy of the product.
Ladite au moins une feuille métallique 85 est en acier, en cuivre ou en alliage à base de fer. Said at least one metal sheet 85 is made of steel, copper or an iron-based alloy.
Comme représenté sur la figure 8A, la paroi interne du canal d'échappement recouverte de ladite au moins une feuille métallique 85 du piège à particules forme un angle a compris entre 45° et 140° par rapport au sens de l'écoulement des gaz. La paroi supportant de ladite au moins une feuille métallique est de préférence dans un plan perpendiculaire au sens de l'écoulement des gaz de coupure (a = 90°). En pratique, en plaçant ladite au moins une feuille métallique 85 dans une courbe ou dans la sortie d'une courbe de l'écoulement des gaz, grâce à la force centrifuge, on favorise le plaquage et l'adhésion des particules contre la feuille. As shown in FIG. 8A, the inner wall of the exhaust channel covered with said at least one metal sheet 85 of the particle trap forms an angle α of between 45 ° and 140 ° with respect to the direction of gas flow. The supporting wall of said at least one metal foil is preferably in a plane perpendicular to the flow direction of the cleavage gases (a = 90 °). In practice, by placing the at least one metal sheet 85 in a curve or in the exit of a curve of the gas flow, thanks to the centrifugal force, the plating and adhesion of the particles is favored. against the leaf.
Ladite au moins une feuille métallique 85 recouvre au moins partiellement la surface interne du canal d'évacuation. La feuille métallique s'étend selon l'axe longitudinal du canal. La longueur L totale de paroi interne recouverte de ladite au moins feuille métallique 85 dans le sens de l'écoulement est égale au moins à la racine carrée de la section S d'écoulement la plus faible dudit canal mesurée en amont de ladite feuille. La plus grande longueur possible est souhaitable pour réduire la température des gaz. La longueur minimale requise s'exprime selon l'équation suivante : L≥VS mini Said at least one metal sheet 85 at least partially covers the inner surface of the discharge channel. The metal sheet extends along the longitudinal axis of the channel. The total length L of internal wall covered with said at least one metal sheet 85 in the direction of flow is at least equal to the square root of the weakest flow section S of said channel measured upstream of said sheet. The greatest possible length is desirable to reduce the temperature of the gases. The minimum length required is expressed according to the following equation: L≥VS mini
Avec Smini la surface de la section minimale du canal d'échappement.  With Smini the surface of the minimum section of the exhaust channel.
En outre, ladite au moins une feuille métallique 85 s'étend sur le périmètre interne P du canal d'échappement selon une direction perpendiculaire au sens de l'écoulement des gaz. La distance I minimale requise sur laquelle s'étend ladite feuille s'exprime selon l'équation suivante : In addition, said at least one metal sheet 85 extends over the internal perimeter P of the exhaust channel in a direction perpendicular to the direction of the gas flow. The minimum required distance I over which said sheet extends is expressed according to the following equation:
Pm/10 < I < Pm Pm / 10 <I <Pm
Pm étant le périmètre moyen du canal d'échappement des gaz dans lequel est situé le piège à particules. Where Pm is the average perimeter of the gas exhaust channel in which the particle trap is located.
Ladite chambre de décompression est positionnée de préférence le plus près possible de la sortie de la chambre de coupure d'arc. Selon une mode particulier de réalisation, la chambre de décompression est placée sous la paroi inférieure de la chambre d'extension d'arc 24. Said decompression chamber is preferably positioned as close as possible to the exit of the arc cutting chamber. According to a particular embodiment, the decompression chamber is placed under the bottom wall of the arc extension chamber 24.
Selon un mode de développement de l'invention représenté sur les figures 4 et 5, tous les canaux d'échappement des gaz 38, 42 se réunissent dans un conduit commun débouchant sur la face amont du boîtier 12 du bloc de coupure 10. Les gaz de coupure sont alors évacués via un seul orifice débouchant 40. A titre d'exemple de réalisation, le cheminement des gaz de coupure à l'intérieur des canaux d'échappement est représenté sur la figure 5. Ainsi, les gaz générés au moment de la coupure dans les deux chambres de coupure 24 sont avantageusement dirigés loin du déclencheur 7 et des éventuels supports de fixation tel que notamment un rail DIN. According to a development mode of the invention shown in FIGS. 4 and 5, all the gas exhaust ducts 38, 42 meet in a common duct leading to the upstream face of the casing 12 of the cut-off block 10. The gases cutoff are then evacuated via a single orifice opening 40. As an embodiment, the path of the cutoff gases inside the exhaust channels is shown in FIG. 5. Thus, the gases generated at the time of the cut in the two breaking chambers 24 are advantageously directed away from the trigger 7 and any mounting brackets such as in particular a DIN rail.
Selon une première variante de réalisation, les canaux d'échappement des gaz 38 et 42 respectivement d'une première et seconde chambre de coupure 24 sont de longueur différente, les gaz de coupure circulant dans un premier canal d'échappement des gaz étant destinés à aspirer par effet Venturi les gaz circulant dans un second canal. According to a first variant embodiment, the gas exhaust ducts 38 and 42 respectively of a first and second breaking chamber 24 are of different lengths, the cutoff gases flowing in a first exhaust gas channel being intended for Venturi effect the gases flowing in a second channel.
Selon une seconde variante de réalisation, un canal d'échappement des gaz 38 comporte un clapet rotatif 45 destiné à être entraîné en rotation par le passage des gaz de coupure. La rotation du clapet d'une première position vers une seconde position est destiné actionner des moyens de déclenchement de l'appareil de coupure pour provoquer l'ouverture des contacts. According to a second variant embodiment, a gas exhaust channel 38 comprises a rotary valve 45 intended to be rotated by the passage of the cutoff gases. The rotation of the valve from a first position to a second position is intended to actuate triggering means of the cutoff device to cause the opening of the contacts.
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. 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 de développement de l'invention, deux flasques d'étanchéité 27 sont placés respectivement entre les faces radiales du barreau rotatif 26 et les faces latérales 14 afin d'assurer une étanchéité entre l'intérieur et l'extérieur du bloc de coupure 10. A titre d'exemple, compte tenu de la forme du barreau rotatif, les flasques d'étanchéité 27 sont de forme cylindrique et peuvent prendre la forme d'une rondelle. Comme, selon un mode particulier de réalisation l'invention, tel que notamment décrit dans la demande de brevet français déposée ce jour au nom de la Demanderesse et intitulée : « Bloc de coupure unipolaire comportant un pont de contacts rotatif, Dispositif de coupure comportant un tel bloc et disjoncteur comportant un tel dispositif », le barreau rotatif 26 comporte au moins un canal 29 en liaison directe entre l'orifice transversal de logement et une face latérale 4 de manière à ce que les gaz de coupure puissent circuler directement via ledit canal vers au moins un flasque d'étanchéité 27 afin de le pousser contre une des faces latérales 14 pour assurer une étanchéité. 00592 According to one embodiment of the invention, two sealing flanges 27 are respectively placed between the radial faces of the rotary bar 26 and the lateral faces 14 in order to ensure a seal between the inside and the outside of the cutoff block. By way of example, taking into account the shape of the rotary bar, the sealing flanges 27 are of cylindrical shape and can take the form of a washer. As, according to a particular embodiment of the invention, such as in particular described in the French patent application filed today in the name of the Applicant and entitled: "Unipolar cutoff block having a rotary contact bridge, cutoff device comprising a such block and circuit breaker comprising such a device ", the rotary bar 26 comprises at least one channel 29 in direct connection between the transverse housing orifice and a lateral face 4 so that the cutoff gases can flow directly via said channel to at least one sealing flange 27 in order to push it against one of the lateral faces 14 to ensure a seal. 00592
13  13
Comme représenté sur la figure 7, le canal 29 du barreau rotatif 26 est de préférence débouchant et traverse de part et d'autre le barreau rotatif 26 d'une première à une seconde face radiale. Ledit canal 29 débouchant comporte un axe longitudinal parallèle à un axe longitudinal du barreau rotatif 26. En outre, le canal débouchant 29 comporte de préférence un axe longitudinal aligné avec un axe longitudinal du barreau rotatif 26 de manière à ce que les gaz de coupure puissent exercer une force de poussée sensiblement alignée avec l'axe longitudinal du barreau et répartie uniformément sur les flasques d'étanchéité.  As shown in Figure 7, the channel 29 of the rotary bar 26 is preferably opening and passes on either side of the rotary bar 26 from a first to a second radial face. Said opening channel 29 comprises a longitudinal axis parallel to a longitudinal axis of the rotary bar 26. In addition, the opening channel 29 preferably comprises a longitudinal axis aligned with a longitudinal axis of the rotary bar 26 so that the cutoff gases can exerting a thrust force substantially aligned with the longitudinal axis of the bar and evenly distributed on the sealing flanges.
Selon un mode particulier de réalisation des flasques d'étanchéité 27 représenté sur la figure 7, lesdits flasques comportent des joues latérales recouvrant au moins partiellement la surface longitudinale du barreau rotatif 26 pour fermer partiellement l'orifice transversal de logement du barreau 26. According to a particular embodiment of the sealing flanges 27 shown in FIG. 7, said flanges comprise lateral cheeks at least partially covering the longitudinal surface of the rotary bar 26 to partially close the transverse housing orifice of the bar 26.
Le disjoncteur 100 selon l'invention ainsi obtenu permet de répondre au mieux aux contraintes industrielles a priori antinomiques suivantes : - la même architecture peut être utilisée pour toute la gamme jusqu'àThe circuit breaker 100 according to the invention thus obtained makes it possible to best meet the following antinomic industrial constraints: - the same architecture can be used for the entire range up to
800 A grâce à l'utilisation d'une double coupure à pont de contact mobile 22 ; 800 A through the use of a double break with movable contact bridge 22;
- la fiabilité des mécanismes de coupure 20 et leur optimisation est prouvée par l'utilisation de solution éprouvées ; - le déclencheur 7 peut être raccordé par le dessous à la plage aval du dispositif de coupure 600, ce qui donne la meilleure accessibilité aux vis de raccordement grâce à une inversion du sens de rotation du pont de coupure rotatif 22 ; the reliability of the cutoff mechanisms and their optimization is proven by the use of proven solutions; - The trigger 7 can be connected from below to the downstream range of the cut-off device 600, which gives the best accessibility to the connection screws by reversing the direction of rotation of the rotary cutoff bridge 22;
- l'interchangeabilité des déclencheurs 7 est complète et permet une différentiation très retardée des appareils de coupure 100 ; - The interchangeability of the triggers 7 is complete and allows a very delayed differentiation of the switchgear 100;
- le nez 9 du dispositif de coupure 600 est centré, en particulier à 42,5 mm, grâce à l'inversion du sens de rotation dans les blocs de coupure 10, ce qui permet d'utiliser des plastrons symétriques dans les armoires ; 10 000592 the nose 9 of the cut-off device 600 is centered, in particular at 42.5 mm, thanks to the reversal of the direction of rotation in the cut-off blocks 10, which makes it possible to use symmetrical plastrons in the cabinets; 10,000592
14  14
- les gaz de coupure ne sont pas évacués à côté du déclencheur 7, ce qui limite la pollution sur cet élément qui peut être sensible, notamment dans sa version électronique, et libère du volume ;  the cutoff gases are not evacuated next to the trip unit 7, which limits the pollution on this element which can be sensitive, in particular in its electronic version, and frees up the volume;
- l'échappement des gaz de coupure n'est pas non plus réalisé sous les raccordements 4, 5 du disjoncteur 100, ce qui limite les risques d'amorçage en coupure. - The exhaust gas cut is also not made under the connections 4, 5 of the circuit breaker 100, which reduces the risk of ignition in cut.

Claims

REVENDICATIONS
1. Dispositif de coupure (600) ayant au moins un bloc de coupure unipolaire (10), ledit bloc comprenant : A cutoff device (600) having at least one unipolar cutoff block (10), said block comprising:
- un pont de contacts mobile (22),  a movable contact bridge (22),
- une paire de contacts fixes (41 , 51 ) coopérant avec ledit pont de contacts mobile et reliés respectivement à un conducteur (4,5) d'amenée de courant, a pair of fixed contacts (41, 51) cooperating with said mobile contact bridge and connected respectively to a current supply conductor (4.5),
- deux chambres de coupure d'arc (24) s'ouvrant respectivement sur un two arc cutting chambers (24) opening respectively on a
volume d'ouverture du pont de contacts (22),  opening volume of the contact bridge (22),
caractérisé en ce que chaque chambre de coupure (24) est reliée à au moins un canal d'échappement des gaz de coupure (38, 42), lesdits canaux  characterized in that each interrupting chamber (24) is connected to at least one exhaust gas outlet channel (38, 42), said channels
d'échappement étant débouchant sur une face amont du boîtier (12) du bloc de coupure (10), ladite face amont étant positionnée à l'opposé d'une autre face aval destinée à être placée en contact avec des moyens de déclenchement (7).  exhaust outlet opening on an upstream face of the casing (12) of the cutoff block (10), said upstream face being positioned opposite another downstream face intended to be placed in contact with triggering means (7); ).
2. Dispositif de coupure selon la revendication 1 , caractérisé en ce que lesdits canaux d'échappement des gaz de coupure (38, 42) se réunissant dans un conduit commun débouchant sur la face amont du boîtier (12) du bloc de coupure (10). 2. Cut-off device according to claim 1, characterized in that said exhaust channels cutoff gases (38, 42) meeting in a common conduit opening on the upstream face of the housing (12) of the cutoff unit (10). ).
3. Dispositif de coupure selon la revendication 2, caractérisé en ce que les canaux d'échappement des gaz coupure (38, 42) respectivement d'une première et seconde chambre de coupure (24) sont de longueur différente, les gaz de coupure circulant dans un premier canal d'échappement des gaz étant destinés à aspirer par effet Venturi les gaz circulant dans un second canal. 3. Cut-off device according to claim 2, characterized in that the exhaust gas channels (38, 42) respectively of a first and second breaking chamber (24) are of different length, the cutting gas flowing in a first gas exhaust channel for venting the gases flowing in a second channel.
4. Dispositif de coupure selon l'une des revendications 1 à 3, caractérisé en ce que chaque chambre de coupure d'arc (24) comporte un empilement d'au moins deux d'ailettes de désionisation (25) séparées les unes des autres par un espace d'échange des gaz, au moins un espace d'échange étant relié à un canal d'échappement des gaz coupure (38, 42). 4. Cut-off device according to one of claims 1 to 3, characterized in that each arc cutting chamber (24) comprises a stack of at least two deionization vanes (25) separated from each other by a gas exchange space, at least one exchange space being connected to an exhaust gas outlet channel (38, 42).
5. Dispositif de coupure selon l'une des revendications précédentes, caractérisé en ce que ledit au moins un canal d'échappement des gaz (42) d'une chambre de coupure d'arc (24) traverse au moins une chambre de décompression (43) comportant au moins une paroi recouverte d'une feuille métallique (85). 5. Cut-off device according to one of the preceding claims, characterized in that said at least one exhaust gas channel (42) of a chamber arc cutting device (24) passes through at least one decompression chamber (43) having at least one wall covered with a metal sheet (85).
6. Dispositif de coupure selon la revendication 5, caractérisé en ce que la chambre de décompression (43) est positionnée sous une paroi inférieure de la chambre d'extension d'arc (24), ladite paroi recouverte par la feuille métallique (85) étant dans un plan formant un angle compris entre 45° et 140° par rapport au sens de l'écoulement des gaz. 6. Cut-off device according to claim 5, characterized in that the decompression chamber (43) is positioned under a bottom wall of the arc extension chamber (24), said wall covered by the metal sheet (85). being in a plane forming an angle between 45 ° and 140 ° with respect to the direction of gas flow.
7. Dispositif de coupure selon la revendication 6, caractérisé en ce que la paroi recouverte par la feuille métallique (85) est dans un plan perpendiculaire au sens de l'écoulement des gaz. 7. Cut-off device according to claim 6, characterized in that the wall covered by the metal sheet (85) is in a plane perpendicular to the direction of the gas flow.
8. Dispositif de coupure selon l'une des revendications précédentes, caractérisé en ce qu'un canal d'échappement des gaz (38) comporte un clapet rotatif (45) destiné à être entraîné en rotation par le passage des gaz de coupure, la rotation du clapet (45) d'une première position vers une seconde position étant destinée actionner des moyens de déclenchement (7) pour provoquer l'ouverture des contacts du dispositif de coupure. 8. Cutoff device according to one of the preceding claims, characterized in that a gas exhaust channel (38) comprises a rotary valve (45) intended to be rotated by the passage of the cutoff gases, the rotation of the valve (45) from a first position to a second position being intended to actuate trigger means (7) to cause the opening of the contacts of the cut-off device.
9. Dispositif de coupure selon l'une des revendications précédentes, 9. Cut-off device according to one of the preceding claims,
caractérisé en ce que le pont de contact mobile (22) est rotatif et est  characterized in that the movable contact bridge (22) is rotatable and is
positionné dans un barreau rotatif (26) ayant un orifice transversal de logement dudit pont de contacts, lequel fait saillie de part et d'autre du barreau (26), ledit barreau rotatif (26) étant intercalé entre deux faces latérales (14) du boîtier (12) du bloc de coupure (10), deux flasques d'étanchéité (27) étant placés respectivement entre les faces radiales du barreau rotatif (26) et les faces latérales (14) afin d'assurer une étanchéité entre l'intérieur et l'extérieur du bloc de coupure (10).  positioned in a rotary bar (26) having a transverse housing hole of said contact bridge, which protrudes on either side of the bar (26), said rotary bar (26) being interposed between two lateral faces (14) of the housing (12) of the cutoff block (10), two sealing flanges (27) being respectively placed between the radial faces of the rotary bar (26) and the side faces (14) to ensure a seal between the inside and the outside of the cutoff block (10).
10. Dispositif de coupure selon la revendication 9, caractérisé en ce que le barreau rotatif (26) comporte au moins un canal (29) en liaison direct entre l'orifice transversal de logement et une face radiale de manière à ce que les gaz de coupure puissent circuler directement via ledit canal vers au moins un flasque d'étanchéité (27) afin de le pousser contre une des faces latérales (14) pour assurer une étanchéité. 10. Cutoff device according to claim 9, characterized in that the rotary bar (26) comprises at least one channel (29) in direct connection between the transverse housing orifice and a radial face so that the gases of cutoff can flow directly via said channel to at least one sealing flange (27) in order to push it against one of the lateral faces (14) to ensure a seal.
11. Dispositif de coupure selon la revendication 10, caractérisé en ce que ledit canal (29) est débouchant et traverse de part et d'autre le barreau rotatif (26) d'une première à une seconde face radiale, ledit canal débouchant comportant un axe longitudinal parallèle à un axe longitudinal du barreau rotatif. 11. Disconnection device according to claim 10, characterized in that said channel (29) is opening and passes on either side of the rotary bar (26) from a first to a second radial face, said channel opening comprising a longitudinal axis parallel to a longitudinal axis of the rotary bar.
12. Dispositif de coupure selon la revendication 11 , caractérisé en ce que le canal (29) débouchant comporte un axe longitudinal aligné avec un axe longitudinal du barreau rotatif (26) de manière à ce que les gaz de coupure puissent exercer une force de pousser sensiblement alignée avec l'axe longitudinal du barreau et répartie uniformément sur les flaques d'étanchéité. 12. Cutoff device according to claim 11, characterized in that the channel (29) opening comprises a longitudinal axis aligned with a longitudinal axis of the rotary bar (26) so that the cutoff gases can exert a force to push substantially aligned with the longitudinal axis of the bar and evenly distributed over the sealing flanges.
13. Dispositif de coupure selon l'une quelconque des revendications Cutting device according to one of the claims
précédentes 9 à12, caractérisé en ce que les flasques d'étanchéité (27) comportent des joues latérales recouvrant au moins partiellement la surface longitudinale du barreau rotatif (26) pour fermer partiellement l'orifice  previous 9 to 12, characterized in that the sealing flanges (27) comprise lateral cheeks at least partially covering the longitudinal surface of the rotary bar (26) to partially close the orifice
transversal de logement du barreau (20).  transverse housing of the bar (20).
14. Dispositif de coupure selon l'une des revendications précédentes 10 à 13, caractérisé en ce que le pont de contact mobile (22) est rotatif entre une position d'ouverture et une position de fermeture des contacts dans un sens horaire. 14. Cut-off device according to one of the preceding claims 10 to 13, characterized in that the movable contact bridge (22) is rotatable between an open position and a closed position of the contacts in a clockwise direction.
15. Disjoncteur ( 00) comportant un dispositif de coupure (600) selon les 15. Circuit breaker (00) having a cut-off device (600) according to the
revendications précédentes caractérisé en ce qu'il comporte un déclencheur (7) connecté aux plages aval (5) du dispositif de coupure (600).  preceding claims characterized in that it comprises a trigger (7) connected to the downstream beaches (5) of the cut-off device (600).
EP10762947.9A 2009-09-18 2010-08-30 Interrupter device having at least one single-pole interrupting unit comprising a contact bridge and circuit breaker comprising such a unit Active EP2478539B1 (en)

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PL10762947T PL2478539T3 (en) 2009-09-18 2010-08-30 Interrupter device having at least one single-pole interrupting unit comprising a contact bridge and circuit breaker comprising such a unit

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0904457A FR2950474B1 (en) 2009-09-18 2009-09-18 CUTTING DEVICE HAVING AT LEAST ONE UNIPOLAR CUT-OFF BLOCK HAVING A CONTACTS BRIDGE AND CIRCUIT BREAKER HAVING SUCH A DEVICE
FR0904455A FR2950473B1 (en) 2009-09-18 2009-09-18 CUTTING DEVICE HAVING EFFICIENT MEANS FOR EXHAUSTING CUTTING GASES
PCT/FR2010/000592 WO2011033182A2 (en) 2009-09-18 2010-08-30 Interrupter device having at least one single-pole phase unit comprising a contact bridge and circuit breaker comprising such a device

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EP2478539B1 EP2478539B1 (en) 2016-12-28

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CN102612725B (en) 2016-11-09
MX2012003068A (en) 2012-04-10
US9159508B2 (en) 2015-10-13
RU2556240C2 (en) 2015-07-10
WO2011033182A3 (en) 2011-05-19
RU2012115449A (en) 2013-10-27
JP2013505526A (en) 2013-02-14
JP5612099B2 (en) 2014-10-22
KR20120083343A (en) 2012-07-25
US20120168405A1 (en) 2012-07-05
BR112012006182B1 (en) 2019-10-22
WO2011033182A2 (en) 2011-03-24
EP2478539B1 (en) 2016-12-28
PL2478539T3 (en) 2017-08-31
KR101802537B1 (en) 2017-11-28
ES2619935T3 (en) 2017-06-27
BR112012006182A2 (en) 2016-05-31
CN102612725A (en) 2012-07-25

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