EP2192605A1 - Device for disconnecting an electric circuit and electricity distribution box comprising such a disconnecting device - Google Patents

Device for disconnecting an electric circuit and electricity distribution box comprising such a disconnecting device Download PDF

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Publication number
EP2192605A1
EP2192605A1 EP09306137A EP09306137A EP2192605A1 EP 2192605 A1 EP2192605 A1 EP 2192605A1 EP 09306137 A EP09306137 A EP 09306137A EP 09306137 A EP09306137 A EP 09306137A EP 2192605 A1 EP2192605 A1 EP 2192605A1
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EP
European Patent Office
Prior art keywords
disconnecting
terminals
closed position
disconnecting member
housing
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
EP09306137A
Other languages
German (de)
French (fr)
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EP2192605B1 (en
Inventor
Jean-Marc Durand
Jérémy Delteil
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.)
Alstom Transport SA
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Alstom Transport SA
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Publication date
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Publication of EP2192605A1 publication Critical patent/EP2192605A1/en
Application granted granted Critical
Publication of EP2192605B1 publication Critical patent/EP2192605B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/01—Relays in which the armature is maintained in one position by a permanent magnet and freed by energisation of a coil producing an opposing magnetic field
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/003—Earthing switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/14—Air-break switches for high tension without arc-extinguishing or arc-preventing means with bridging contact that is not electrically connected to either line contact in open position of switch
    • H01H31/24—Air-break switches for high tension without arc-extinguishing or arc-preventing means with bridging contact that is not electrically connected to either line contact in open position of switch with rectilinearly-movable bridging contact
    • 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
    • H01H9/0066—Auxiliary contact devices

Definitions

  • the invention also relates to a system for supplying at least one electrically conductive rail capable of supplying an electric current to a railway vehicle, comprising a supply circuit of the conducting rail, at least one disconnecting device of the supply circuit , and a circuit for electrically grounding the conductive rail when the supply circuit is cut.
  • the disconnecting devices of an electrical circuit are used to open or close a link of this electrical circuit, and allow to ensure a minimum physical distance between the first disconnecting member and the corresponding disconnection terminals when the circuit is open.
  • the disconnecting devices are, for example, used in electrical power distribution cabinets for railway vehicles.
  • the first disconnecting member is a movable bar of insulating material provided with electrical contacts.
  • the automatic control means comprise an electromagnetic suction cup comprising a metal plate integral in translation with a movable cutting bar.
  • the manual reset control device is a mounted lever mobile in rotation about an axis integral with the housing at one of its ends and connected to the movable bar.
  • the object of the invention is to propose a device for disconnecting an electrical circuit making it possible to reduce the risks of electrocution in contact with the main disconnecting terminals in the open position of the first disconnecting member.
  • the subject of the invention is a disconnecting device of the aforementioned type, characterized in that it comprises, in the housing, two secondary disconnecting terminals and a second disconnecting member movable between an open position and a disconnecting position. closing position of a second electrical connection between the two secondary isolating terminals, the second disconnecting member being coupled to the first disconnecting member, the switching of the first disconnecting member causing the switching of the second disconnecting member.
  • the invention also relates to a feeding system of the aforementioned type characterized in that the sectioning device is as defined above.
  • FIG. 1 On the figure 1 is shown a system 1 for feeding two electrically conductive rails 2A, interconnected by an insulating segment 2B.
  • the electrically conductive rails 2A are capable of supplying an electric current to a railway vehicle 3A via an electrically conductive pad 3B.
  • the supply system 1 comprises a circuit 4 for supplying a conducting rail 2A, and a circuit 5 for electrically grounding 6 of the other conducting rail 2A or of the two conducting rails 2A when no conducting rail 2A is powered by the supply circuit 4.
  • the supply circuit 4 comprises a first switch 7 for each conducting rail 2A, and a current source 8.
  • the grounding circuit 5 comprises a second switch 9A for each conducting rail 2A, and a fuse 9B for connecting with the electric ground 6.
  • the supply circuit 4 and the grounding circuit 5 comprise common connection points 9C.
  • the supply system 1 comprises a device 10 for disconnecting the supply circuit 4.
  • the sectioning device 10 illustrated on the figure 2 , comprises, in a housing 12, a connection module 14 and an actuator 16 adapted to control the switching of the connection module 14 from a first state to a second state.
  • the first state is represented on the figure 2
  • the second state is represented on the figure 3 .
  • the housing 12 comprises a base plate 17 intended to be fixed on a support, not shown.
  • the connection module 14 comprises two main disconnecting terminals 18, two secondary disconnecting terminals 20 and an additional terminal 22.
  • the supply circuit 4 is able to connect one of the main disconnecting terminals 18 to the first two switches 7 and the other main terminal 18 to the current source 8.
  • the grounding circuit 5 is able to connect on the one hand each conducting rail 2A and each second switch 9A to a terminal corresponding secondary 20, and the second terminal 22 to the electrical earth 6.
  • Each terminal 18, 20, 22 is connected by an electric cable 23 for connection with the corresponding circuit 4, 5.
  • the connecting cables 23 are, for example, provided at one end with a lug, not shown, clamped against a terminal 18, 20, 22 by means of a screw 24 and a nut 26. .
  • each main terminal 18 is integral with a respective first contact 28, and each secondary terminal 20 has an end forming a respective second contact 30.
  • the two main terminals 18 and the first two contacts 28 are arranged symmetrically with respect to an axis of symmetry XX 'perpendicular to the base plate 17.
  • the two secondary terminals 20 and the second two contacts 30 are symmetrical with respect to the X-X 'axis.
  • the second contacts 30 are coplanar.
  • a moving assembly 32 is slidably movable along the X-X 'axis between the first fixed contacts 28 on the one hand and the second fixed contacts 30 on the other hand, under the control of the actuator 16.
  • the moving element 32 comprises an insulating body 34 carrying a first disconnecting conductive plate 36 and a second disconnecting conductive plate 38. More specifically, the first plate 36 is coupled to the insulating body 34 by a first contact spring 40, and the second plate 38 is coupled to the insulating body 34 by a second contact spring 42. The second plate 38 is electrically connected to the auxiliary terminal 22 via a conductive braid 43.
  • the first plate 36 and the second plate 38 extend substantially transversely to the axis X-X '.
  • Each plate 36, 38 is axially movable with respect to the insulating body 34.
  • the plates 36, 38 are movable inside rectangular slots extending along the axis X-X 'and formed in the insulating body 34.
  • the first plate 36 is movable relative to the two main terminals 18, between a closed position and an open position of a first electrical connection between the two main terminals 18.
  • the first plate 36 has a core 44 extended in each of its ends by an inclined flange 46.
  • Each flange 46 of the first plate is secured to a third contact 48 respectively.
  • Each third contact 48 is clean, in the closed position of the first plate 36, to bear against a respective first contact 28 and thus ensure the closure of the first electrical connection between the two main terminals 18, as shown in FIG. figure 2 .
  • Each third contact 48 is intended, in the open position of the first plate 36, to be away from the respective first contact 28 and thus ensure the opening of the first electrical connection, as shown in FIG. figure 3 .
  • the second conductive plate 38 is movable relative to the two secondary terminals 20, between an open position and a closed position of a second electrical connection between the two secondary terminals 20.
  • the second plate 38 is substantially flat, and present on one side two areas forming two respective fourth contacts 50.
  • the fourth contacts are coplanar.
  • Each fourth contact 50 is intended, in the open position of the second plate 38, to be away from a respective second contact 30 and thus ensure the opening of the second electrical connection, as shown in FIG. figure 2 .
  • Each fourth contact 50 is clean, in the closed position of the second plate 38, to bear against a respective second contact 30 and thus ensure the closure of the second electrical connection, as shown in FIG. figure 3 .
  • the first contact spring 40 is able to elastically bias the first plate 36 towards the main terminals 18 to ensure contact between the third contacts 48 and the first contacts 28 respectively.
  • the second contact spring 42 is adapted to resiliently bias the second plate 38 against the secondary terminals 20 to ensure contact between the fourth contacts 50 and the respective second contacts 30.
  • the closing position of the first plate 36 and the opening position of the second plate 38 correspond to the first state of the connection module 14, illustrated in FIG. figure 2 .
  • the opening position of the first plate 36 and the closing position of the second plate 38 correspond to the second state of the connection module 14, illustrated in FIG. figure 3 .
  • the moving element 32 At its end facing the actuator 16, the moving element 32 has a transverse abutment surface 52.
  • a second elastic spring 54 is applied between the abutment surface 52 and a bearing surface 56 of an integral enclosure 58 of the case.
  • the abutment surface 52 is extended at each of its ends by a support arm 60.
  • the mobile assembly 32 comprises a rod 62 for manual control of rearming the first plate 36 from its open position to its closed position.
  • the control rod 62 extends substantially along the axis X-X 'and is axially movable through an opening 64 formed in the housing 12.
  • the control rod 62 and the opening 64 are arranged between the two secondary terminals 20.
  • the actuator 16 comprises an electromagnetic coil 66 held fixed in the enclosure 58, and a magnetized metal plate 68 slidably mounted along the axis XX 'inside the enclosure 58.
  • the electromagnetic coil 66 and the magnetic plate 68 are centered along the X-X 'axis.
  • the coil 66 is in the form of a cylinder of axis X-X ', and is capable of exerting a magnetic attraction force directed along the axis X-X'.
  • the coil 66 is connected by a control circuit to a suitable voltage source 70 via a switch 72.
  • the control circuit is connected externally to the disconnecting device 10 by control terminals 74 fixed to the housing 12.
  • the magnetized plate 68 is integral with a shaft 76 axially connected to the insulating body 34 of the moving equipment.
  • the return spring 54 is wound around the shaft 76.
  • the return spring 54 is disposed between the moving assembly 32 and the enclosure 58 to bias the moving assembly 32 away from the actuator 16 that is to say in a position in which the second conductive plate 38 is in contact with the secondary terminals 20. More precisely, the spring 54 is kept compressed between the enclosure 58 and the transverse abutment surface 52.
  • the spring 54 is able to exert a restoring force on the magnetized plate 68.
  • the restoring force is directed along the axis X-X '.
  • the restoring force of the spring 54 is of a lower intensity than the force of attraction exerted by the magnet of the plate 68 when the connection module 14 is in its first state, that is to say when the magnetized plate 68 is in contact with the electromagnetic coil 66.
  • the restoring force of the spring 54 is of greater intensity than the force of attraction exerted by the magnet of the plate 68 when the connection 14 is in its second state, i.e. when the magnet plate 68 is at a predetermined distance from the coil 66.
  • the device 10 comprises a sensor 80 for reading the position of the first plate 36.
  • the sensor 80 comprises a contact blade 82 movable between a position compressed against one of the two support arms 60 in the closed position of the first plate 36 , and a position released in the open position of the first plate 36.
  • the sensor 80 is able to switch, via a pallet 83, an electrical signal between two output terminals 84, the signal being received in one 86.
  • the switching of the pallet 83 depends on the position of the blade 82, that is to say the position of the first plate 36.
  • the other conducting rail 2A in other words the conductive rail 2A right of the figure 1 , is not powered, the first switch 7 right corresponding to the other rail 2A being open.
  • the other conducting rail 2A is electrically grounded 6 via the grounding circuit 5, the second right switch 9A corresponding to this other rail 2A being closed, as shown in FIG. figure 1 .
  • the other conducting rail 2A in other words the left conducting rail 2A of the figure 1 , is not powered, the first switch 7 left corresponding to the other rail 2A being open.
  • the other conducting rail 2A is electrically grounded 6 via the grounding circuit 5, the second left switch 9A corresponding to this other rail 2A being closed.
  • the conductive pad 3B is no longer in contact with any of the two conducting rails 2A of the figure 1 and the two conducting rails 2A are electrically grounded 6 via the grounding circuit 5, the first switches 7 being open and the second switches 9A corresponding to these conductor rails 2A being closed.
  • the disconnecting device 10 is controlled to cut off the supply circuit 4.
  • the connection module 14 moves from his first state to his second state, as depicted on the figure 3 .
  • the main terminal 18 connected to the first switch 7 is then isolated from the current source 8 by the passage of the first disconnector member 36 from its closed position to its open position and the two common connection points 9C are connected to the electric mass 6 through the passage of the second disconnector member 38 to its closed position.
  • the disconnecting device 10 operates in the following manner.
  • the switch 72 In working position and as illustrated on the figure 2 , the switch 72 is open so that the electromagnetic coil 66 is not powered. Under these conditions, the permanent magnet of the plate 68 exerts a force of attraction on the coil 66 which is fixed in the enclosure 58. In this position of the magnetized plate 68, the spring 54 is compressed and a contacting third contacts 48 of the first plate with the first contacts 28 of the main terminals is provided by means of the first contact spring 40. The second plate 38 is away from the secondary terminals 20 and connected to the electrical ground 6 by via the conductive braid 43 and the terminal 22.
  • the electromagnetic coil 66 When the switch 72 is closed, as illustrated on the figure 3 the electromagnetic coil 66 is energized by a current, which causes the formation of a magnetic field in the coil 66.
  • the magnetic field of the coil 66 opposes the magnetic field of the magnet plate 68, so that the plate The magnet 68 is no longer attracted and held against the coil 66.
  • the return spring 54 biases the moving assembly 32 away from the actuator 16.
  • the connection module 14 is driven by its first state to its second state by the return spring 54, so that the first plate 36 and the second plate 38 switch position.
  • the passage of the first plate 36 from its closed position to its open position causes the predetermined passage of the second plate 38 from its open position to its closed position.
  • the first plate 36 is no longer in the closed position, when the second plate 38 reaches its closed position.
  • a contacting of the fourth contacts 50 of the second plate with the second contacts 30 of the secondary terminals is provided by means of the second contact spring 42.
  • the secondary terminals 20 are electrically connected between they via the second plate 38, and thus connected to the electrical ground 6 via the terminal annex 22 and the conductive braid 43.
  • One of the two main terminals 18 being connected by the circuits 4, 5 to a secondary terminal 20, this main terminal 18 is connected to the electrical ground 6 when the second plate 38 is in its closed position, that is to say in the opening position of the first plate 36.
  • connection module 14 is then maintained in its first state, via the attraction of the magnetized plate 68 against the coil 66.
  • the rod 62 being disposed along the axis X-X 'of displacement of the movable plates 36, 38, the manual reset is facilitated.
  • the power supply system 1 is intended to supply a single electrically conductive rail 2A capable of supplying an electric current to the railway vehicle 3A.
  • a secondary terminal 20 is connected to the electrical ground 6, and the other secondary terminal 20 is connected to the conductive rail 2A.
  • the disconnecting device 10 has no ancillary terminal. The operation is similar to that of the embodiment described above. When the conductive pad 3B of the railway vehicle 3A is in contact with the conducting rail 2A, this rail is fed through the supply circuit 4. The disconnecting device 10 is in the working position, and the connection module 14 is in its first state, as illustrated on the figure 2 .
  • the conductive pad 3B When the rail vehicle 3A has moved away from the conducting rail 2A, the conductive pad 3B is no longer in contact with the conducting rail 2A, and the conducting rail 2A is electrically grounded 6 via the setting circuit to ground 5, the first switch 7 being open and the second switch 9A being closed.
  • the disconnecting device 10 is controlled to cut off the supply circuit 4.
  • the connection module 14 goes from its first state in its second state, as shown on the figure 3 .
  • the main terminal 18 connected to the first switch 7 is then isolated from the current source 8 by the passage of the first disconnector member 36 from its closed position to its open position and the common connection point 9C is connected to the electric mass 6 through the passage of the second sectioning member 38 to its closed position.
  • the sectioning device allows, automatically and predetermined manner, an electrical grounding of rails. conductors and, in the event of a fault, isolation and electrical grounding of the supply circuit, which reduces the risk of electrocution.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Abstract

The device (10) has a sectioning unit (38) i.e. plate, moved between an opening position and a closing position of an electrical connection between main sectioning terminals (20). A manual control member (62) i.e. control rod, resets another sectioning unit (36) i.e. plate, from open position to closed position. The latter sectioning unit is mechanically coupled to the former sectioning unit, where the latter sectioning unit is switched for switching the former sectioning unit. An independent claim is also included for a system for supplying electrical power to an electrically conductive rail for supplying electrical current to a rail vehicle, comprising a supply circuit of the conductive rail.

Description

La présente invention concerne un dispositif de sectionnement d'un circuit électrique comprenant :

  • un boîtier avec deux bornes principales de sectionnement, et dans le boîtier :
    • un premier organe de sectionnement mobile entre une position d'ouverture et une position de fermeture d'une première liaison électrique entre les deux bornes principales de sectionnement,
    • des moyens de commande automatique sous l'effet d'un signal électrique du premier organe de sectionnement de sa position de fermeture vers sa position d'ouverture, et
    • un organe de commande manuelle de réarmement du premier organe de sectionnement de sa position d'ouverture vers sa position de fermeture.
The present invention relates to a device for severing an electrical circuit comprising:
  • a housing with two main terminals of sectioning, and in the case:
    • a first movable disconnecting member between an open position and a closed position of a first electrical connection between the two main disconnecting terminals,
    • automatic control means under the effect of an electrical signal of the first disconnecting member from its closed position to its open position, and
    • a manual control member for resetting the first disconnecting member from its open position to its closed position.

L'invention concerne également un système d'alimentation d'au moins un rail électriquement conducteur propre à fournir un courant électrique à un véhicule ferroviaire, comprenant un circuit d'alimentation du rail conducteur, au moins un dispositif de sectionnement du circuit d'alimentation, et un circuit de mise à la masse électrique du rail conducteur lorsque le circuit d'alimentation est sectionné.The invention also relates to a system for supplying at least one electrically conductive rail capable of supplying an electric current to a railway vehicle, comprising a supply circuit of the conducting rail, at least one disconnecting device of the supply circuit , and a circuit for electrically grounding the conductive rail when the supply circuit is cut.

Les dispositifs de sectionnement d'un circuit électrique sont utilisés pour ouvrir ou fermer une liaison de ce circuit électrique, et permettent d'assurer une distance physique minimale entre le premier organe de sectionnement et les bornes de sectionnement correspondantes lorsque le circuit est ouvert. Les dispositifs de sectionnement sont, par exemple, utilisés dans des coffrets de distribution d'énergie électrique pour des véhicules ferroviaires.The disconnecting devices of an electrical circuit are used to open or close a link of this electrical circuit, and allow to ensure a minimum physical distance between the first disconnecting member and the corresponding disconnection terminals when the circuit is open. The disconnecting devices are, for example, used in electrical power distribution cabinets for railway vehicles.

On connaît selon la demande de brevet EP 0 479 694 A1 un dispositif de sectionnement du type précité. Le premier organe de sectionnement est un barreau mobile en matière isolante muni de contacts électriques. Les moyens de commande automatiques comprennent une ventouse électromagnétique comportant une plaque métallique solidaire en translation d'un barreau mobile de sectionnement. L'organe de commande manuelle de réarmement est un levier monté mobile en rotation autour d'un axe solidaire du boîtier à l'une de ses extrémités et relié au barreau mobile.It is known according to the patent application EP 0 479 694 A1 a cutting device of the aforementioned type. The first disconnecting member is a movable bar of insulating material provided with electrical contacts. The automatic control means comprise an electromagnetic suction cup comprising a metal plate integral in translation with a movable cutting bar. The manual reset control device is a mounted lever mobile in rotation about an axis integral with the housing at one of its ends and connected to the movable bar.

Toutefois, un tel dispositif de sectionnement présente des risques d'électrocution au contact des bornes principales de sectionnement lorsque le circuit est ouvert, c'est-à-dire en position d'ouverture du premier organe de sectionnement. Ces risques sont d'autant plus présents que le réarmement du dispositif de sectionnement est manuel.However, such a disconnecting device presents risks of electrocution in contact with the main disconnecting terminals when the circuit is open, that is to say in the open position of the first disconnecting member. These risks are all the more present as the resetting of the disconnecting device is manual.

L'invention a pour but de proposer un dispositif de sectionnement d'un circuit électrique permettant de réduire les risques d'électrocution au contact des bornes principales de sectionnement en position d'ouverture du premier organe de sectionnement.The object of the invention is to propose a device for disconnecting an electrical circuit making it possible to reduce the risks of electrocution in contact with the main disconnecting terminals in the open position of the first disconnecting member.

A cet effet, l'invention a pour objet un dispositif de sectionnement du type précité, caractérisé en ce qu'il comprend, dans le boîtier, deux bornes secondaires de sectionnement et un deuxième organe de sectionnement mobile entre une position d'ouverture et une position de fermeture d'une deuxième liaison électrique entre les deux bornes secondaires de sectionnement, le deuxième organe de sectionnement étant accouplé au premier organe de sectionnement, la commutation du premier organe de sectionnement entraînant la commutation du deuxième organe de sectionnement.For this purpose, the subject of the invention is a disconnecting device of the aforementioned type, characterized in that it comprises, in the housing, two secondary disconnecting terminals and a second disconnecting member movable between an open position and a disconnecting position. closing position of a second electrical connection between the two secondary isolating terminals, the second disconnecting member being coupled to the first disconnecting member, the switching of the first disconnecting member causing the switching of the second disconnecting member.

Suivant d'autres modes de réalisation, le dispositif de sectionnement comprend une ou plusieurs des caractéristiques suivantes, prises isolément ou suivant toutes combinaisons techniquement possibles :

  • le deuxième organe de sectionnement est accouplé mécaniquement au premier organe de sectionnement ;
  • la commutation du premier organe de sectionnement de sa position de fermeture vers sa position d'ouverture entraîne une commutation prédéterminée du deuxième organe de sectionnement de sa position d'ouverture vers sa position de fermeture ;
  • les moyens de commande automatique comprennent une plaque aimantée mobile solidaire du premier organe de sectionnement , une bobine électromagnétique solidaire du boîtier, reliée à deux bornes de commande portées par le boîtier, et destinée à maintenir le premier organe de sectionnement en position de fermeture en l'absence de courant électrique entre les bornes de commande, et un ressort de rappel appliqué entre le premier organe de sectionnement et le boîtier, et destiné à rappeler le premier organe de sectionnement en position d'ouverture en présence entre les bornes de commande d'un courant électrique de libération, générant dans la bobine un champ magnétique de répulsion de la plaque aimantée mobile ;
  • l'organe de commande manuelle comprend une tige d'appui sur le premier organe de sectionnement de sa position d'ouverture à sa position de fermeture, la tige d'appui étant accessible depuis l'extérieur du boîtier ;
  • la tige d'appui est disposée entre les deux bornes secondaires de sectionnement ;
  • le dispositif comprend une borne annexe portée par le boîtier et reliée par une tresse conductrice au deuxième organe de sectionnement ; et
  • le dispositif comprend un capteur de relecture de la position du premier organe de sectionnement.
According to other embodiments, the disconnecting device comprises one or more of the following characteristics, taken separately or in any technically possible combination:
  • the second disconnecting member is mechanically coupled to the first disconnecting member;
  • switching the first disconnecting member from its closed position to its open position causes a predetermined switching of the second disconnecting member from its open position to its closed position;
  • the automatic control means comprise a movable magnet plate secured to the first disconnecting member, an electromagnetic coil integral with the housing, connected to two control terminals carried by the housing, and intended to keep the first disconnecting member in the closed position in the absence of electric current between the control terminals, and a return spring applied between the first disconnecting member and the housing, and intended to return the first disconnecting member in the open position in the presence between the control terminals of an electric release current, generating in the coil a field magnetic repulsion of the movable magnet plate;
  • the manual control member comprises a support rod on the first disconnecting member from its open position to its closed position, the support rod being accessible from outside the housing;
  • the support rod is disposed between the two secondary terminals of sectioning;
  • the device comprises an auxiliary terminal carried by the housing and connected by a conductive braid to the second disconnecting member; and
  • the device comprises a replay sensor of the position of the first sectioning member.

L'invention a également pour objet un système d'alimentation du type précité caractérisé en ce que le dispositif de sectionnement est tel que défini ci-dessus.The invention also relates to a feeding system of the aforementioned type characterized in that the sectioning device is as defined above.

Suivant un autre mode de réalisation, le système d'alimentation comprend la caractéristique suivante :

  • le système est destiné à alimenter au moins deux rails électriquement conducteurs, le dispositif de sectionnement est tel que défini ci-dessus, la borne annexe est reliée à la masse électrique, et le circuit de mise à la masse relie chacun des rails conducteurs à une borne secondaire correspondante, de sorte que le sectionnement du circuit d'alimentation, par l'intermédiaire de la commutation du premier organe de sectionnement de sa position de fermeture vers sa position d'ouverture de la première liaison électrique, entraîne la mise à la masse électrique de chacun des rails conducteurs.
According to another embodiment, the feeding system comprises the following characteristic:
  • the system is intended to supply at least two electrically conductive rails, the disconnecting device is as defined above, the auxiliary terminal is connected to the electrical ground, and the grounding circuit connects each of the conductive rails to a corresponding secondary terminal, so that the disconnection of the supply circuit, through the switching of the first disconnecting member from its closed position to its opening position of the first electrical connection, causes the grounding each of the conductor rails.

Ces caractéristiques et avantages de l'invention apparaîtront à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple, et faite en référence aux dessins annexés, sur lesquels :

  • la figure 1 est une représentation schématique d'un système d'alimentation de deux rails électriquement conducteurs selon l'invention,
  • la figure 2 est une vue en coupe transversale d'un dispositif de sectionnement connecté dans un coffret de distribution d'énergie électrique selon l'invention, en position de fermeture d'une première liaison électrique, et
  • la figure 3 est une vue analogue à celle de la figure 2, en position d'ouverture de la première liaison électrique.
These features and advantages of the invention will appear on reading the description which follows, given solely by way of example, and with reference to the appended drawings, in which:
  • the figure 1 is a schematic representation of a power supply system for two electrically conductive rails according to the invention,
  • the figure 2 is a cross-sectional view of a disconnecting device connected in an electrical power distribution box according to the invention, in the closed position of a first electrical connection, and
  • the figure 3 is a view similar to that of the figure 2 in the open position of the first electrical connection.

Sur la figure 1 est représenté un système 1 d'alimentation de deux rails électriquement conducteurs 2A, reliés entre eux par un segment isolant 2B. Les rails électriquement conducteurs 2A sont propres à fournir un courant électrique à un véhicule ferroviaire 3A par l'intermédiaire d'un patin électriquement conducteur 3B. Le système d'alimentation 1 comprend un circuit 4 d'alimentation d'un rail conducteur 2A, et un circuit 5 de mise à une masse électrique 6 de l'autre rail conducteur 2A ou bien des deux rails conducteurs 2A lorsque aucun rail conducteur 2A n'est alimenté par le circuit d'alimentation 4.On the figure 1 is shown a system 1 for feeding two electrically conductive rails 2A, interconnected by an insulating segment 2B. The electrically conductive rails 2A are capable of supplying an electric current to a railway vehicle 3A via an electrically conductive pad 3B. The supply system 1 comprises a circuit 4 for supplying a conducting rail 2A, and a circuit 5 for electrically grounding 6 of the other conducting rail 2A or of the two conducting rails 2A when no conducting rail 2A is powered by the supply circuit 4.

Le circuit d'alimentation 4 comporte un premier interrupteur 7 pour chaque rail conducteur 2A, et une source de courant 8. Le circuit de mise à la masse 5 comporte un deuxième interrupteur 9A pour chaque rail conducteur 2A, et un fusible 9B de liaison avec la masse électrique 6. Le circuit d'alimentation 4 et le circuit de mise à la masse 5 comportent des points 9C de connexion commune.The supply circuit 4 comprises a first switch 7 for each conducting rail 2A, and a current source 8. The grounding circuit 5 comprises a second switch 9A for each conducting rail 2A, and a fuse 9B for connecting with the electric ground 6. The supply circuit 4 and the grounding circuit 5 comprise common connection points 9C.

Le système d'alimentation 1 comprend un dispositif 10 de sectionnement du circuit d'alimentation 4.The supply system 1 comprises a device 10 for disconnecting the supply circuit 4.

Le dispositif de sectionnement 10, illustré sur la figure 2, comporte, dans un boîtier 12, un module de connexion 14 et un actionneur 16 propre à commander la commutation du module de connexion 14 d'un premier état à un second état. Le premier état est représenté sur la figure 2, et le second état est représenté sur la figure 3.The sectioning device 10, illustrated on the figure 2 , comprises, in a housing 12, a connection module 14 and an actuator 16 adapted to control the switching of the connection module 14 from a first state to a second state. The first state is represented on the figure 2 , and the second state is represented on the figure 3 .

Le boîtier 12 comporte une platine de base 17 destinée à être fixée sur un support, non représenté.The housing 12 comprises a base plate 17 intended to be fixed on a support, not shown.

Le module de connexion 14 comporte deux bornes principales de sectionnement 18, deux bornes secondaires de sectionnement 20 et une borne annexe 22. Le circuit d'alimentation 4 est propre à relier une des bornes principales de sectionnement 18 aux deux premiers interrupteurs 7 et l'autre borne principale 18 à la source de courant 8. Le circuit de mise à la masse 5 est propre à relier d'une part chaque rail conducteur 2A et chaque deuxième interrupteur 9A à une borne secondaire 20 correspondante, et d'autre part la borne annexe 22 à la masse électrique 6.The connection module 14 comprises two main disconnecting terminals 18, two secondary disconnecting terminals 20 and an additional terminal 22. The supply circuit 4 is able to connect one of the main disconnecting terminals 18 to the first two switches 7 and the other main terminal 18 to the current source 8. The grounding circuit 5 is able to connect on the one hand each conducting rail 2A and each second switch 9A to a terminal corresponding secondary 20, and the second terminal 22 to the electrical earth 6.

Chaque borne 18, 20, 22 est reliée par un câble électrique 23 de liaison avec le circuit 4, 5 correspondant. Les câbles de liaison 23 sont, par exemple, munis à l'une de leur extrémité d'une cosse, non représentée, serrée contre une borne 18, 20, 22 par l'intermédiaire d'une vis 24 et d'un écrou 26.Each terminal 18, 20, 22 is connected by an electric cable 23 for connection with the corresponding circuit 4, 5. The connecting cables 23 are, for example, provided at one end with a lug, not shown, clamped against a terminal 18, 20, 22 by means of a screw 24 and a nut 26. .

Dans le boîtier 12, chaque borne principale 18 est solidaire d'un premier contact 28 respectif, et chaque borne secondaire 20 comporte une extrémité formant un deuxième contact 30 respectif.In the housing 12, each main terminal 18 is integral with a respective first contact 28, and each secondary terminal 20 has an end forming a respective second contact 30.

Les deux bornes principales 18 et les deux premiers contacts 28 sont disposés symétriquement par rapport à un axe de symétrie X-X' perpendiculaire à la platine de base 17. De même, les deux bornes secondaires 20 et les deux deuxièmes contacts 30 sont symétriques par rapport à l'axe X-X'. Dans l'exemple de réalisation de la figure 2, les deuxièmes contacts 30 sont coplanaires.The two main terminals 18 and the first two contacts 28 are arranged symmetrically with respect to an axis of symmetry XX 'perpendicular to the base plate 17. Similarly, the two secondary terminals 20 and the second two contacts 30 are symmetrical with respect to the X-X 'axis. In the exemplary embodiment of the figure 2 the second contacts 30 are coplanar.

Un équipage mobile 32 est monté mobile à coulissement suivant l'axe X-X' entre les premier contacts fixes 28 d'une part, et les deuxième contacts fixes 30 d'autre part, sous la commande de l'actionneur 16.A moving assembly 32 is slidably movable along the X-X 'axis between the first fixed contacts 28 on the one hand and the second fixed contacts 30 on the other hand, under the control of the actuator 16.

L'équipage mobile 32 comporte un corps isolant 34 portant une première platine conductrice de sectionnement 36 et une deuxième platine conductrice de sectionnement 38. Plus précisément, la première platine 36 est accouplée au corps isolant 34 par un premier ressort de contact 40, et la deuxième platine 38 est accouplée au corps isolant 34 par un second ressort de contact 42. La deuxième platine 38 est connectée électriquement à la borne annexe 22 par l'intermédiaire d'une tresse conductrice 43.The moving element 32 comprises an insulating body 34 carrying a first disconnecting conductive plate 36 and a second disconnecting conductive plate 38. More specifically, the first plate 36 is coupled to the insulating body 34 by a first contact spring 40, and the second plate 38 is coupled to the insulating body 34 by a second contact spring 42. The second plate 38 is electrically connected to the auxiliary terminal 22 via a conductive braid 43.

La première platine 36 et la deuxième platine 38 s'étendent sensiblement transversalement à l'axe X-X'. Chaque platine 36, 38 est mobile axialement par rapport au corps isolant 34. Les platines 36, 38 sont mobiles à l'intérieur de fentes rectangulaires s'étendant selon l'axe X-X' et ménagées dans le corps isolant 34.The first plate 36 and the second plate 38 extend substantially transversely to the axis X-X '. Each plate 36, 38 is axially movable with respect to the insulating body 34. The plates 36, 38 are movable inside rectangular slots extending along the axis X-X 'and formed in the insulating body 34.

La première platine 36 est mobile par rapport aux deux bornes principales 18, entre une position de fermeture et une position d'ouverture d'une première liaison électrique entre les deux bornes principales 18. La première platine 36 comporte une âme 44 prolongée en chacune de ses extrémités par un rebord incliné 46. Chaque rebord 46 de la première platine est solidaire d'un troisième contact 48 respectif. Chaque troisième contact 48 est propre, en position de fermeture de la première platine 36, à prendre appui contre un premier contact 28 respectif et ainsi assurer la fermeture de la première liaison électrique entre les deux bornes principales 18, comme représenté sur la figure 2. Chaque troisième contact 48 est destiné, en position d'ouverture de la première platine 36, à être à l'écart du premier contact 28 respectif et ainsi assurer l'ouverture de la première liaison électrique, comme représenté sur la figure 3.The first plate 36 is movable relative to the two main terminals 18, between a closed position and an open position of a first electrical connection between the two main terminals 18. The first plate 36 has a core 44 extended in each of its ends by an inclined flange 46. Each flange 46 of the first plate is secured to a third contact 48 respectively. Each third contact 48 is clean, in the closed position of the first plate 36, to bear against a respective first contact 28 and thus ensure the closure of the first electrical connection between the two main terminals 18, as shown in FIG. figure 2 . Each third contact 48 is intended, in the open position of the first plate 36, to be away from the respective first contact 28 and thus ensure the opening of the first electrical connection, as shown in FIG. figure 3 .

La seconde platine conductrice 38 est mobile par rapport aux deux bornes secondaires 20, entre une position d'ouverture et une position de fermeture d'une deuxième liaison électrique entre les deux bornes secondaires 20. La seconde platine 38 est sensiblement plane, et présente sur une face deux zones formant deux quatrième contacts 50 respectifs. Les quatrièmes contacts sont coplanaires. Chaque quatrième contact 50 est destiné, en position d'ouverture de la seconde platine 38, à être à l'écart d'un deuxième contact 30 respectif et ainsi assurer l'ouverture de la deuxième liaison électrique, comme représenté sur la figure 2. Chaque quatrième contact 50 est propre, en position de fermeture de la seconde platine 38, à prendre appui contre un deuxième contact 30 respectif et ainsi assurer la fermeture de la deuxième liaison électrique, comme représenté sur la figure 3.The second conductive plate 38 is movable relative to the two secondary terminals 20, between an open position and a closed position of a second electrical connection between the two secondary terminals 20. The second plate 38 is substantially flat, and present on one side two areas forming two respective fourth contacts 50. The fourth contacts are coplanar. Each fourth contact 50 is intended, in the open position of the second plate 38, to be away from a respective second contact 30 and thus ensure the opening of the second electrical connection, as shown in FIG. figure 2 . Each fourth contact 50 is clean, in the closed position of the second plate 38, to bear against a respective second contact 30 and thus ensure the closure of the second electrical connection, as shown in FIG. figure 3 .

Le premier ressort de contact 40 est propre à solliciter élastiquement la première platine 36 en direction des bornes principales 18 pour assurer un contact entre les troisièmes contacts 48 et les premiers contacts 28 respectifs. Le second ressort de contact 42 est propre à solliciter élastiquement la deuxième platine 38 contre les bornes secondaires 20 afin d'assurer un contact entre les quatrièmes contacts 50 et les deuxièmes contacts 30 respectifs.The first contact spring 40 is able to elastically bias the first plate 36 towards the main terminals 18 to ensure contact between the third contacts 48 and the first contacts 28 respectively. The second contact spring 42 is adapted to resiliently bias the second plate 38 against the secondary terminals 20 to ensure contact between the fourth contacts 50 and the respective second contacts 30.

La position de fermeture de la première platine 36 et la position d'ouverture de la seconde platine 38 correspondent au premier état du module de connexion 14, illustré sur la figure 2. La position d'ouverture de la première platine 36 et la position de fermeture de la seconde platine 38 correspondent au second état du module de connexion 14, illustré sur la figure 3.The closing position of the first plate 36 and the opening position of the second plate 38 correspond to the first state of the connection module 14, illustrated in FIG. figure 2 . The opening position of the first plate 36 and the closing position of the second plate 38 correspond to the second state of the connection module 14, illustrated in FIG. figure 3 .

A son extrémité tournée vers l'actionneur 16, l'équipage mobile 32 présente une surface transversale de butée 52. Un deuxième ressort élastique 54 est appliqué entre la surface de butée 52 et une surface d'appui 56 d'une enceinte 58 solidaire du boîtier. La surface de butée 52 se prolonge en chacune de ses extrémités par un bras d'appui 60.At its end facing the actuator 16, the moving element 32 has a transverse abutment surface 52. A second elastic spring 54 is applied between the abutment surface 52 and a bearing surface 56 of an integral enclosure 58 of the case. The abutment surface 52 is extended at each of its ends by a support arm 60.

A son autre extrémité, l'équipage mobile 32 comporte une tige 62 de commande manuelle de réarmement de la première platine 36 de sa position d'ouverture vers sa position de fermeture. La tige de commande 62 s'étend sensiblement suivant l'axe X-X' et est mobile axialement à travers une ouverture 64 ménagée dans le boîtier 12. La tige de commande 62 et l'ouverture 64 sont disposées entre les deux bornes secondaires 20.At its other end, the mobile assembly 32 comprises a rod 62 for manual control of rearming the first plate 36 from its open position to its closed position. The control rod 62 extends substantially along the axis X-X 'and is axially movable through an opening 64 formed in the housing 12. The control rod 62 and the opening 64 are arranged between the two secondary terminals 20.

L'actionneur 16 comporte une bobine électromagnétique 66 maintenue fixe dans l'enceinte 58, et une plaque métallique aimantée 68 montée coulissante suivant l'axe X-X' à l'intérieur de l'enceinte 58. La bobine électromagnétique 66 et la plaque aimantée 68 sont centrées suivant l'axe X-X'.The actuator 16 comprises an electromagnetic coil 66 held fixed in the enclosure 58, and a magnetized metal plate 68 slidably mounted along the axis XX 'inside the enclosure 58. The electromagnetic coil 66 and the magnetic plate 68 are centered along the X-X 'axis.

La bobine 66 est en forme d'un cylindre d'axe X-X', et est propre à exercer une force d'attraction magnétique dirigée selon l'axe X-X'. La bobine 66 est reliée par un circuit de commande à une source de tension adaptée 70 par l'intermédiaire d'un interrupteur 72. Le circuit de commande est relié extérieurement au dispositif de sectionnement 10 par des bornes de commande 74 fixées au boîtier 12.The coil 66 is in the form of a cylinder of axis X-X ', and is capable of exerting a magnetic attraction force directed along the axis X-X'. The coil 66 is connected by a control circuit to a suitable voltage source 70 via a switch 72. The control circuit is connected externally to the disconnecting device 10 by control terminals 74 fixed to the housing 12.

La plaque aimantée 68 est solidaire d'un arbre 76 relié axialement au corps isolant 34 de l'équipage mobile. Le ressort de rappel 54 est enroulé autour de l'arbre 76. Le ressort de rappel 54 est disposé entre l'équipage mobile 32 et l'enceinte 58 pour solliciter l'équipage mobile 32 à l'écart de l'actionneur 16, c'est-à-dire dans une position dans laquelle la deuxième plaque conductrice 38 est en contact avec les bornes secondaires 20. Plus précisément, le ressort 54 est maintenu comprimé entre l'enceinte 58 et la surface transversale de butée 52.The magnetized plate 68 is integral with a shaft 76 axially connected to the insulating body 34 of the moving equipment. The return spring 54 is wound around the shaft 76. The return spring 54 is disposed between the moving assembly 32 and the enclosure 58 to bias the moving assembly 32 away from the actuator 16 that is to say in a position in which the second conductive plate 38 is in contact with the secondary terminals 20. More precisely, the spring 54 is kept compressed between the enclosure 58 and the transverse abutment surface 52.

Le ressort 54 est propre à exercer une force de rappel sur la plaque aimantée 68. La force de rappel est dirigée selon l'axe X-X'. La force de rappel du ressort 54 est d'intensité inférieure à celle de la force d'attraction exercée par l'aimant de la plaque 68 lorsque le module de connexion 14 est dans son premier état, c'est-à-dire lorsque la plaque aimantée 68 est au contact de la bobine électromagnétique 66. La force de rappel du ressort 54 est d'intensité supérieure à celle de la force d'attraction exercée par l'aimant de la plaque 68 lorsque le module de connexion 14 est dans son deuxième état, c'est-à-dire lorsque la plaque aimantée 68 est à une distance prédéterminée de la bobine 66.The spring 54 is able to exert a restoring force on the magnetized plate 68. The restoring force is directed along the axis X-X '. The restoring force of the spring 54 is of a lower intensity than the force of attraction exerted by the magnet of the plate 68 when the connection module 14 is in its first state, that is to say when the magnetized plate 68 is in contact with the electromagnetic coil 66. The restoring force of the spring 54 is of greater intensity than the force of attraction exerted by the magnet of the plate 68 when the connection 14 is in its second state, i.e. when the magnet plate 68 is at a predetermined distance from the coil 66.

Le dispositif 10 comprend un capteur 80 de relecture de la position de la première platine 36. Le capteur 80 comporte une lame de contact 82 mobile entre une position comprimée contre un des deux bras d'appui 60 en position de fermeture de la première platine 36, et une position relâchée en position d'ouverture de la première platine 36. Le capteur 80 est propre à commuter, par l'intermédiaire d'une palette 83, un signal électrique entre deux bornes de sortie 84, le signal étant reçu en une borne d'entrée 86. La commutation de la palette 83 dépend de la position de la lame 82, c'est-à-dire de la position de la première platine 36.The device 10 comprises a sensor 80 for reading the position of the first plate 36. The sensor 80 comprises a contact blade 82 movable between a position compressed against one of the two support arms 60 in the closed position of the first plate 36 , and a position released in the open position of the first plate 36. The sensor 80 is able to switch, via a pallet 83, an electrical signal between two output terminals 84, the signal being received in one 86. The switching of the pallet 83 depends on the position of the blade 82, that is to say the position of the first plate 36.

Le fonctionnement du système d'alimentation 1 va être à présent décrit.The operation of the feed system 1 will now be described.

Lorsque le patin conducteur 3B du véhicule ferroviaire 3A est en contact avec le rail conducteur 2A gauche de la figure 1, ce rail gauche est alimenté par l'intermédiaire du circuit d'alimentation 4, le premier interrupteur 7 gauche correspondant à ce rail 2A gauche étant fermé. Le deuxième interrupteur 9A gauche correspondant à ce rail gauche est ouvert, afin d'éviter un retour du courant d'alimentation vers la masse électrique 6, comme représenté sur la figure 1. Le dispositif de sectionnement 10 est en position de travail, et le module de connexion 14 est dans son premier état, comme illustré sur les figures 1 et 2. Seul le rail conducteur 2A situé en-dessous du véhicule ferroviaire 3A est alimenté, afin de réduire les risques d'électrocution notamment vis-à-vis des piétons.When the conductive pad 3B of the railway vehicle 3A is in contact with the left conducting rail 2A of the figure 1 , This left rail is fed through the supply circuit 4, the first switch 7 left corresponding to the left rail 2A being closed. The second left switch 9A corresponding to this left rail is open, in order to avoid a return of the supply current to the electrical ground 6, as shown in FIG. figure 1 . The disconnecting device 10 is in the working position, and the connection module 14 is in its first state, as illustrated in FIGS. figures 1 and 2 . Only the conductor rail 2A located below the railway vehicle 3A is powered, to reduce the risk of electrocution especially vis-à-vis pedestrians.

L'autre rail conducteur 2A, autrement dit le rail conducteur 2A droit de la figure 1, n'est pas alimenté, le premier interrupteur 7 droit correspondant à cet autre rail 2A étant ouvert. L'autre rail conducteur 2A est mis à la masse électrique 6 par l'intermédiaire du circuit de mise à la masse 5, le deuxième interrupteur 9A droit correspondant à cet autre rail 2A étant fermé, comme représenté sur la figure 1.The other conducting rail 2A, in other words the conductive rail 2A right of the figure 1 , is not powered, the first switch 7 right corresponding to the other rail 2A being open. The other conducting rail 2A is electrically grounded 6 via the grounding circuit 5, the second right switch 9A corresponding to this other rail 2A being closed, as shown in FIG. figure 1 .

Lorsque le patin conducteur 3B du véhicule ferroviaire 3A est en contact avec le rail conducteur 2A droit de la figure 1, ce rail droit est alimenté par l'intermédiaire du circuit d'alimentation 4, le premier interrupteur 7 droit correspondant à ce rail 2A droit étant fermé. Le deuxième interrupteur 9A droit correspondant à ce rail droit est ouvert, afin d'éviter un retour du courant d'alimentation vers la masse électrique 6. Le dispositif de sectionnement 10 est en position de travail, et le module de connexion 14 est dans son premier état, comme illustré sur la figure 2.When the conductive pad 3B of the railway vehicle 3A is in contact with the conductor rail 2A right of the figure 1 this straight rail is powered via the power supply circuit 4, the first switch 7 right corresponding to the right rail 2A being closed. The second right switch 9A corresponding to this right rail is open, in order to avoid a return of the supply current to the electrical ground 6. The disconnecting device 10 is in the working position, and the connection module 14 is in its first state, as illustrated on the figure 2 .

L'autre rail conducteur 2A, autrement dit le rail conducteur 2A gauche de la figure 1, n'est pas alimenté, le premier interrupteur 7 gauche correspondant à cet autre rail 2A étant ouvert. L'autre rail conducteur 2A est mis à la masse électrique 6 par l'intermédiaire du circuit de mise à la masse 5, le deuxième interrupteur 9A gauche correspondant à cet autre rail 2A étant fermé.The other conducting rail 2A, in other words the left conducting rail 2A of the figure 1 , is not powered, the first switch 7 left corresponding to the other rail 2A being open. The other conducting rail 2A is electrically grounded 6 via the grounding circuit 5, the second left switch 9A corresponding to this other rail 2A being closed.

Lorsque le véhicule ferroviaire 3A s'est éloigné de ces deux rails conducteurs 2A, le patin conducteur 3B n'est plus en contact avec aucun des deux rails conducteurs 2A de la figure 1, et les deux rails conducteurs 2A sont mis à la masse électrique 6 par l'intermédiaire du circuit de mise à la masse 5, les premiers interrupteurs 7 étant ouverts et les deuxièmes interrupteurs 9A correspondant à ces rails conducteurs 2A étant fermés.When the railway vehicle 3A has moved away from these two conducting rails 2A, the conductive pad 3B is no longer in contact with any of the two conducting rails 2A of the figure 1 and the two conducting rails 2A are electrically grounded 6 via the grounding circuit 5, the first switches 7 being open and the second switches 9A corresponding to these conductor rails 2A being closed.

En cas de défaut sur le système d'alimentation des deux rails conducteurs, que le véhicule ferroviaire soit éloigné des deux rails ou non, le dispositif de sectionnement 10 est commandé pour sectionner le circuit d'alimentation 4. Le module de connexion 14 passe de son premier état à son deuxième état, comme représenté sur la figure 3. La borne principale 18 reliée au premier interrupteur 7 est alors isolée de la source de courant 8 de par le passage du premier organe de sectionnement 36 de sa position de fermeture à sa position d'ouverture et les deux points de connexions communes 9C sont reliés à la masse électrique 6 de par le passage du deuxième organe de sectionnement 38 à sa position de fermeture.In the event of a fault in the supply system of the two conducting rails, whether the rail vehicle is moved away from the two rails or not, the disconnecting device 10 is controlled to cut off the supply circuit 4. The connection module 14 moves from his first state to his second state, as depicted on the figure 3 . The main terminal 18 connected to the first switch 7 is then isolated from the current source 8 by the passage of the first disconnector member 36 from its closed position to its open position and the two common connection points 9C are connected to the electric mass 6 through the passage of the second disconnector member 38 to its closed position.

Le dispositif de sectionnement 10 fonctionne de la manière suivante.The disconnecting device 10 operates in the following manner.

En position de travail et comme illustré sur la figure 2, l'interrupteur 72 est ouvert de sorte que la bobine électromagnétique 66 n'est pas alimentée. Dans ces conditions, l'aimant permanent de la plaque 68 exerce une force d'attraction sur la bobine 66 qui est fixe dans l'enceinte 58. Dans cette position de la plaque aimantée 68, le ressort 54 est comprimé et une mise en contact des troisièmes contacts 48 de la première platine avec les premiers contacts 28 des bornes principales est assurée par l'intermédiaire du premier ressort de contact 40. La deuxième platine 38 est à l'écart des bornes secondaires 20 et reliée à la masse électrique 6 par l'intermédiaire de la tresse conductrice 43 et de la borne annexe 22.In working position and as illustrated on the figure 2 , the switch 72 is open so that the electromagnetic coil 66 is not powered. Under these conditions, the permanent magnet of the plate 68 exerts a force of attraction on the coil 66 which is fixed in the enclosure 58. In this position of the magnetized plate 68, the spring 54 is compressed and a contacting third contacts 48 of the first plate with the first contacts 28 of the main terminals is provided by means of the first contact spring 40. The second plate 38 is away from the secondary terminals 20 and connected to the electrical ground 6 by via the conductive braid 43 and the terminal 22.

Lorsque l'interrupteur 72 est fermé, comme illustré sur la figure 3, la bobine électromagnétique 66 est alimentée par un courant, ce qui entraîne la formation d'un champ magnétique dans la bobine 66. Le champ magnétique de la bobine 66 s'oppose au champ magnétique de la plaque aimantée 68, de sorte que la plaque aimantée 68 n'est plus attirée et maintenue contre la bobine 66. Dans ces conditions, le ressort de rappel 54 sollicite l'équipage mobile 32 à l'écart de l'actionneur 16. Autrement dit, le module de connexion 14 est entraîné de son premier état à son second état par le ressort de rappel 54, de sorte que la première platine 36 et la seconde platine 38 commutent de position. Le passage de la première platine 36 de sa position de fermeture à sa position d'ouverture entraîne de façon prédéterminée le passage de la seconde platine 38 de sa position d'ouverture à sa position de fermeture. La première platine 36 n'est plus en position de fermeture, lorsque la seconde platine 38 atteint sa position de fermeture. Dans cette position du module de connexion 14, une mise en contact des quatrièmes contacts 50 de la seconde platine avec les deuxièmes contacts 30 des bornes secondaires est assurée par l'intermédiaire du second ressort de contact 42. Les bornes secondaires 20 sont reliées électriquement entre elles par l'intermédiaire de la seconde platine 38, et donc reliées à la masse électrique 6 par l'intermédiaire de la borne annexe 22 et de la tresse conductrice 43. Une des deux bornes principales 18 étant reliée par les circuits 4, 5 à une borne secondaire 20, cette borne principale 18 est reliée à la masse électrique 6 lorsque la deuxième platine 38 est dans sa position de fermeture, c'est-à-dire dans la position d'ouverture de la première platine 36.When the switch 72 is closed, as illustrated on the figure 3 the electromagnetic coil 66 is energized by a current, which causes the formation of a magnetic field in the coil 66. The magnetic field of the coil 66 opposes the magnetic field of the magnet plate 68, so that the plate The magnet 68 is no longer attracted and held against the coil 66. Under these conditions, the return spring 54 biases the moving assembly 32 away from the actuator 16. In other words, the connection module 14 is driven by its first state to its second state by the return spring 54, so that the first plate 36 and the second plate 38 switch position. The passage of the first plate 36 from its closed position to its open position causes the predetermined passage of the second plate 38 from its open position to its closed position. The first plate 36 is no longer in the closed position, when the second plate 38 reaches its closed position. In this position of the connection module 14, a contacting of the fourth contacts 50 of the second plate with the second contacts 30 of the secondary terminals is provided by means of the second contact spring 42. The secondary terminals 20 are electrically connected between they via the second plate 38, and thus connected to the electrical ground 6 via the terminal annex 22 and the conductive braid 43. One of the two main terminals 18 being connected by the circuits 4, 5 to a secondary terminal 20, this main terminal 18 is connected to the electrical ground 6 when the second plate 38 is in its closed position, that is to say in the opening position of the first plate 36.

Une intervention manuelle sur la tige d'appui 62 est nécessaire afin d'entraîner le module de connexion 14 à nouveau vers son premier état, à partir de son second état. En effet, la seule ouverture de l'interrupteur 72 ne suffit pas à attirer la plaque aimantée 68 contre la bobine 66, puisque la force de rappel du ressort 54 est d'intensité supérieure à celle de la force d'attraction exercée par l'aimant de la plaque 68 lorsque le module de connexion 14 est dans son deuxième état. Plus précisément, une pression sur la tige d'appui 62 entraîne le déplacement du corps isolant 34 de l'équipage mobile selon l'axe X-X' en direction de l'enceinte 58. La pression sur la tige d'appui 62 doit être suffisamment forte pour comprimer le ressort de rappel 54 et le premier ressort de contact 40. Le déplacement de l'équipage mobile 32 vers l'enceinte 58 entraîne une translation de la plaque aimantée 68 au contact de la bobine 66. Il est nécessaire d'ouvrir au préalable l'interrupteur 72, afin de supprimer le courant dans la bobine 66, ce qui entraîne la disparition dans la bobine électromagnétique 66 du champ magnétique de répulsion de l'aimant. Le module de connexion 14 est alors maintenu dans son premier état, via l'attraction de la plaque aimantée 68 contre la bobine 66.Manual intervention on the support rod 62 is necessary to drive the connection module 14 back to its first state from its second state. Indeed, the only opening of the switch 72 is not enough to attract the magnetized plate 68 against the coil 66, since the restoring force of the spring 54 is of greater intensity than the force of attraction exerted by the magnet plate 68 when the connection module 14 is in its second state. More specifically, a pressure on the support rod 62 causes the displacement of the insulating body 34 of the moving element along the axis XX 'towards the enclosure 58. The pressure on the support rod 62 must be sufficiently strong to compress the return spring 54 and the first contact spring 40. The displacement of the moving element 32 towards the enclosure 58 causes a translation of the magnetic plate 68 in contact with the coil 66. It is necessary to first open the switch 72, in order to remove the current in the coil 66, which causes the disappearance in the electromagnetic coil 66 of the repulsion magnetic field of the magnet. The connection module 14 is then maintained in its first state, via the attraction of the magnetized plate 68 against the coil 66.

La tige 62 étant disposée selon l'axe X-X' de déplacement des platines mobiles 36, 38, le réarmement manuel en est facilité.The rod 62 being disposed along the axis X-X 'of displacement of the movable plates 36, 38, the manual reset is facilitated.

Selon un autre mode de réalisation, le système d'alimentation 1 est destiné à alimenter un seul rail électriquement conducteur 2A propre à fournir un courant électrique au véhicule ferroviaire 3A. Une borne secondaire 20 est reliée à la masse électrique 6, et l'autre borne secondaire 20 est reliée au rail conducteur 2A. Le dispositif de sectionnement 10 ne comporte pas de borne annexe.Le fonctionnement est similaire à celui du mode de réalisation décrit précédemment. Lorsque le patin conducteur 3B du véhicule ferroviaire 3A est en contact avec le rail conducteur 2A, ce rail est alimenté par l'intermédiaire du circuit d'alimentation 4. Le dispositif de sectionnement 10 est en position de travail, et le module de connexion 14 est dans son premier état, comme illustré sur la figure 2. Lorsque le véhicule ferroviaire 3A s'est éloigné du rail conducteur 2A, le patin conducteur 3B n'est plus en contact avec le rail conducteur 2A, et le rail conducteur 2A est mis à la masse électrique 6 par l'intermédiaire du circuit de mise à la masse 5, le premier interrupteur 7 étant ouvert et le deuxième interrupteur 9A étant fermé.According to another embodiment, the power supply system 1 is intended to supply a single electrically conductive rail 2A capable of supplying an electric current to the railway vehicle 3A. A secondary terminal 20 is connected to the electrical ground 6, and the other secondary terminal 20 is connected to the conductive rail 2A. The disconnecting device 10 has no ancillary terminal. The operation is similar to that of the embodiment described above. When the conductive pad 3B of the railway vehicle 3A is in contact with the conducting rail 2A, this rail is fed through the supply circuit 4. The disconnecting device 10 is in the working position, and the connection module 14 is in its first state, as illustrated on the figure 2 . When the rail vehicle 3A has moved away from the conducting rail 2A, the conductive pad 3B is no longer in contact with the conducting rail 2A, and the conducting rail 2A is electrically grounded 6 via the setting circuit to ground 5, the first switch 7 being open and the second switch 9A being closed.

En cas de défaut sur le système d'alimentation du rail conducteur, que le véhicule ferroviaire soit éloigné du rail ou non, le dispositif de sectionnement 10 est commandé pour sectionner le circuit d'alimentation 4. Le module de connexion 14 passe de son premier état à son deuxième état, comme représenté sur la figure 3. La borne principale 18 reliée au premier interrupteur 7 est alors isolée de la source de courant 8 de par le passage du premier organe de sectionnement 36 de sa position de fermeture à sa position d'ouverture et le point de connexion commune 9C est relié à la masse électrique 6 de par le passage du deuxième organe de sectionnement 38 à sa position de fermeture.In the event of a fault in the power supply system of the conducting rail, whether the railway vehicle is remote from the rail or not, the disconnecting device 10 is controlled to cut off the supply circuit 4. The connection module 14 goes from its first state in its second state, as shown on the figure 3 . The main terminal 18 connected to the first switch 7 is then isolated from the current source 8 by the passage of the first disconnector member 36 from its closed position to its open position and the common connection point 9C is connected to the electric mass 6 through the passage of the second sectioning member 38 to its closed position.

On conçoit ainsi que le dispositif de sectionnement selon l'invention permet, de manière automatique et prédéterminée, une mise à la masse électrique de rails conducteurs et, en cas de défaut, l'isolement et la mise à la masse électrique du circuit d'alimentation, ce qui entraîne une réduction des risques d'électrocution.It is thus conceivable that the sectioning device according to the invention allows, automatically and predetermined manner, an electrical grounding of rails. conductors and, in the event of a fault, isolation and electrical grounding of the supply circuit, which reduces the risk of electrocution.

Claims (10)

Dispositif (10) de sectionnement d'un circuit électrique comprenant : - un boîtier (12) avec deux bornes principales de sectionnement (18), et dans le boîtier (12) : - un premier organe de sectionnement (36) mobile entre une position d'ouverture et une position de fermeture d'une première liaison électrique entre les deux bornes principales de sectionnement (18), - des moyens de commande automatique (16) sous l'effet d'un signal électrique du premier organe de sectionnement (36) de sa position de fermeture vers sa position d'ouverture, et - un organe de commande manuelle (62) de réarmement du premier organe de sectionnement (36) de sa position d'ouverture vers sa position de fermeture, caractérisé en ce qu'il comprend, dans le boîtier (12), deux bornes secondaires de sectionnement (20) et un deuxième organe de sectionnement (38) mobile entre une position d'ouverture et une position de fermeture d'une deuxième liaison électrique entre les deux bornes secondaires de sectionnement (20), le deuxième organe de sectionnement (38) étant accouplé au premier organe de sectionnement (36), la commutation du premier organe de sectionnement (36) entraînant la commutation du deuxième organe de sectionnement (38).Device (10) for severing an electrical circuit comprising: a housing (12) with two main disconnecting terminals (18), and in the housing (12): a first disconnecting member (36) movable between an open position and a closed position of a first electrical connection between the two main disconnecting terminals (18), automatic control means (16) under the effect of an electrical signal from the first disconnecting member (36) from its closed position to its open position, and a manual control device (62) for resetting the first disconnecting member (36) from its open position towards its closed position, characterized in that it comprises, in the housing (12), two secondary disconnecting terminals (20) and a second disconnecting member (38) movable between an open position and a closed position of a second electrical connection between the two secondary isolating terminals (20), the second disconnecting member (38) being coupled to the first disconnecting member (36), the switching of the first disconnecting member (36) causing the switching of the second disconnecting member (38). ). Dispositif de sectionnement (10) selon la revendication 1, caractérisé en ce que le deuxième organe de sectionnement (38) est accouplé mécaniquement au premier organe de sectionnement (36).Disconnecting device (10) according to claim 1, characterized in that the second disconnecting member (38) is mechanically coupled to the first disconnecting member (36). Dispositif de sectionnement (10) selon la revendication 1 ou 2, caractérisé en ce que la commutation du premier organe de sectionnement (36) de sa position de fermeture vers sa position d'ouverture entraîne une commutation prédéterminée du deuxième organe de sectionnement (38) de sa position d'ouverture vers sa position de fermeture.Disconnecting device (10) according to claim 1 or 2, characterized in that the switching of the first disconnecting member (36) from its closed position to its open position causes a predetermined switching of the second disconnecting member (38). from its open position to its closed position. Dispositif de sectionnement (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens de commande automatique (16) comprennent une plaque aimantée mobile (68) solidaire du premier organe de sectionnement (36), une bobine électromagnétique (66) solidaire du boîtier (12), reliée à deux bornes de commande (74) portées par le boîtier (12), et destinée à maintenir le premier organe de sectionnement (36) en position de fermeture en l'absence de courant électrique entre les bornes de commande (74), et un ressort de rappel (54) appliqué entre le premier organe de sectionnement (36) et le boîtier (12), et destiné à rappeler le premier organe de sectionnement (36) en position d'ouverture en présence entre les bornes de commande (74) d'un courant électrique de libération, générant dans la bobine (66) un champ magnétique de répulsion de la plaque aimantée mobile (68).Disconnection device (10) according to any one of the preceding claims, characterized in that the automatic control means (16) comprise a movable magnet plate (68) integral with the first disconnecting member (36), an electromagnetic coil (66) ) secured to the housing (12), connected to two control terminals (74) carried by the housing (12), and intended maintaining the first disconnecting member (36) in the closed position in the absence of electric current between the control terminals (74), and a return spring (54) applied between the first disconnecting member (36) and the housing (12), and intended to return the first disconnecting member (36) in the open position in the presence between the control terminals (74) of an electric release current, generating in the coil (66) a magnetic field repulsion of the movable magnet plate (68). Dispositif de sectionnement (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'organe de commande manuelle comprend une tige (62) d'appui sur le premier organe de sectionnement (36) de sa position d'ouverture à sa position de fermeture, la tige d'appui (62) étant accessible depuis l'extérieur du boîtier (12).Disconnecting device (10) according to any one of the preceding claims, characterized in that the manual control member comprises a rod (62) bearing on the first disconnecting member (36) from its open position to its closed position, the support rod (62) being accessible from outside the housing (12). Dispositif de sectionnement (10) selon la revendication 5, caractérisé en ce que la tige d'appui (62) est disposée entre les deux bornes secondaires de sectionnement (20).Disconnecting device (10) according to claim 5, characterized in that the support rod (62) is disposed between the two secondary disconnecting terminals (20). Dispositif de sectionnement (10) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend une borne annexe (22) portée par le boîtier (12) et reliée par une tresse conductrice (43) au deuxième organe de sectionnement (38).Disconnection device (10) according to any one of the preceding claims, characterized in that it comprises an auxiliary terminal (22) carried by the housing (12) and connected by a conductive braid (43) to the second disconnector ( 38). Dispositif de sectionnement (10) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend un capteur (80) de relecture de la position du premier organe de sectionnement (36).Disconnecting device (10) according to any one of the preceding claims, characterized in that it comprises a sensor (80) for reading the position of the first disconnecting member (36). Système (1) d'alimentation d'au moins un rail électriquement conducteur (2A) propre à fournir un courant électrique à un véhicule ferroviaire (3A), comprenant un circuit (4) d'alimentation du rail conducteur (2A), au moins un dispositif (10) de sectionnement du circuit d'alimentation (4), et un circuit (5) de mise à la masse électrique (6) du rail conducteur (2A) lorsque le circuit d'alimentation (4) est sectionné, caractérisé en ce que le dispositif de sectionnement (10) est conforme à l'une quelconque des revendications précédentes.System (1) for supplying at least one electrically conductive rail (2A) capable of supplying electric power to a railway vehicle (3A), comprising a circuit (4) for supplying the conducting rail (2A), at least a device (10) for disconnecting the supply circuit (4), and a circuit (5) for electrically grounding (6) the conducting rail (2A) when the supply circuit (4) is cut, characterized in that the disconnecting device (10) is in accordance with any one of the preceding claims. Système d'alimentation (1) selon la revendication 9, caractérisé en qu'il est destiné à alimenter au moins deux rails électriquement conducteurs (2A), en ce que le dispositif de sectionnement (10) est conforme à la revendication 7, en ce que la borne annexe (22) est reliée à la masse électrique (6), et en ce que le circuit de mise à la masse (5) relie chacun des rails conducteurs (2A) à une borne secondaire (20) correspondante, de sorte que le sectionnement du circuit d'alimentation (4), par l'intermédiaire de la commutation du premier organe de sectionnement (36) de sa position de fermeture vers sa position d'ouverture de la première liaison électrique, entraîne la mise à la masse électrique (6) de chacun des rails conducteurs (2A).Power system (1) according to claim 9, characterized in that it is intended to supply at least two electrically conductive rails (2A), in that the disconnecting device (10) is in accordance with claim 7, in that the auxiliary terminal (22) is connected to the electrical earth (6), and in that the circuit device (5) connects each of the conductor rails (2A) to a corresponding secondary terminal (20), so that the isolation of the supply circuit (4), via the switching of the first sectioning (36) from its closed position to its opening position of the first electrical connection, causes the electrical ground (6) of each of the conducting rails (2A).
EP09306137A 2008-11-28 2009-11-25 Device for disconnecting an electric circuit and electricity distribution box comprising such a disconnecting device Active EP2192605B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0858080A FR2939237B1 (en) 2008-11-28 2008-11-28 DEVICE FOR DISCONNECTING AN ELECTRICAL CIRCUIT AND AN ELECTRICAL POWER DISTRIBUTION BOX COMPRISING SUCH A DEVICE FOR DISCONNECTING.

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EP2192605A1 true EP2192605A1 (en) 2010-06-02
EP2192605B1 EP2192605B1 (en) 2012-10-10

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EP (1) EP2192605B1 (en)
ES (1) ES2396750T3 (en)
FR (1) FR2939237B1 (en)

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Also Published As

Publication number Publication date
FR2939237B1 (en) 2011-02-11
ES2396750T3 (en) 2013-02-25
EP2192605B1 (en) 2012-10-10
US8319587B2 (en) 2012-11-27
FR2939237A1 (en) 2010-06-04
US20100134223A1 (en) 2010-06-03

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