EP3876253B1 - Electric current interruption system and railway vehicle comprising such an interruption system - Google Patents

Electric current interruption system and railway vehicle comprising such an interruption system Download PDF

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Publication number
EP3876253B1
EP3876253B1 EP21159966.7A EP21159966A EP3876253B1 EP 3876253 B1 EP3876253 B1 EP 3876253B1 EP 21159966 A EP21159966 A EP 21159966A EP 3876253 B1 EP3876253 B1 EP 3876253B1
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EP
European Patent Office
Prior art keywords
contact
deformable reservoir
switch
deformable
reservoir
Prior art date
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Application number
EP21159966.7A
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German (de)
French (fr)
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EP3876253A1 (en
Inventor
Antoine TAINE
Nicolas Quentin
François TERRIEN
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Alstom Transport Technologies SAS
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Alstom Transport Technologies SAS
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Publication of EP3876253A1 publication Critical patent/EP3876253A1/en
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Publication of EP3876253B1 publication Critical patent/EP3876253B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/24—Power arrangements internal to the switch for operating the driving mechanism using pneumatic or hydraulic actuator
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • 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
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
    • H01H33/34—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator hydraulic
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/668—Means for obtaining or monitoring the vacuum
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/04—Means for indicating condition of the switching device
    • H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/04—Means for indicating condition of the switching device
    • H01H2071/044—Monitoring, detection or measuring systems to establish the end of life of the switching device, can also contain other on-line monitoring systems, e.g. for detecting mechanical failures

Definitions

  • the present invention relates to a system for interrupting an electric current, the interruption system comprising a switch comprising a first contact and a second contact, the first contact being movable relative to the second contact between a closed position allowing passage of the current and an open position interrupting the flow of current, and, in addition, a device for controlling the switch configured to control the switch between the open position and the closed position.
  • CN 110544593 A relates to a connection mechanism for a USB socket in a power converter and electrical equipment which discloses a system for interrupting an electric current according to the preamble of claim 1.
  • the present invention also relates to a railway vehicle comprising such an interruption system.
  • a control device comprising an isolator device, rigidly fixed on one side to the first contact, and on the other side to an actuator of the control device.
  • the isolator device is configured to electrically isolate the switch, and in particular the first contact, with respect to the actuator.
  • the actuator is configured to move the isolator device in translation and thus the first contact to control the opening or closing of the switch.
  • One of the aims of the invention is thus to propose a system for interrupting an electric current which is simple and which can be produced in a compact manner.
  • the piloting device comprising a control actuator, and a hydraulic transmission system disposed between the control actuator and the first contact such that the control actuator is capable of controlling the movement of the first contact via the hydraulic transmission system
  • the hydraulic transmission system comprising a first deformable reservoir connected to the control actuator, a second deformable reservoir connected to the first contact of the switch, and a hydraulic circuit fluidically connecting an interior volume of the first deformable tank to an interior volume of the second deformable tank so that a deformation of the first deformable tank caused by the control actuator causes a corresponding deformation of the second deformable tank causing a corresponding displacement of the first contact
  • the interruption system comprises further a detection device configured to detect the position of the first contact relative to the second contact.
  • the invention also proposes a railway vehicle comprising an interruption system as described above.
  • a railway vehicle 1 comprises a pantograph 2, a transformer 4, at least one electric load or electric consumer 6 and an interrupt system 8 for an electric current.
  • the pantograph 2 is for example configured to pick up an electric current on a catenary 10 in order to supply the railway vehicle 1 with electricity. During operation of the railway vehicle 1, an electric current passes through, from the catenary 10, the pantograph 2 and the transformer 4 to supply the electrical consumer 6.
  • the electric current is in particular an alternating current.
  • the electric current is a direct current.
  • the transformer 4 is configured to transform the electric current taken from the catenary into an electric current suitable for supplying the electrical consumer 6.
  • the transformer 4 is a transformer configured to receive a high voltage electric current.
  • High voltage means a voltage between 5 kV and 50 kV, preferably between 10 kV and 30 kV.
  • the high voltage is a voltage substantially equal to 15 kV or substantially equal to 25 kV.
  • the electrical consumer 6 is a device or an on-board system of the railway vehicle 1 which consumes electricity for its operation, for example a traction motor or an air conditioning and/or heating system of the railway vehicle 1.
  • the rail vehicle 1 generally comprises a plurality of electrical consumers 6.
  • the interruption system 8 is configured to interrupt the electric current between the pantograph 2 and all or part of the primary of the transformer 4, for example according to a configuration of the transformer 4.
  • the interrupt system 8 comprises a switch 12 and a control device 14 of the switch 12.
  • the switch 12 comprises a first contact 16 electrically connected to a first terminal 17 of the interrupt system 8 and a second contact 18 electrically connected to a second terminal 19 of the interrupt system 8.
  • the first contact 16 is movable relative to the second contact 18 between a closed position allowing the passage of electric current between the first contact 16 and the second contact 18 and an open position interrupting the passage of electric current.
  • the first contact 16 is for example movable in translation relative to the second contact 18 between the open position and the closed position.
  • the switch 12 In the open position, the switch 12 is configured not to transmit any electric current between the first contact 16 and the second contact 18.
  • the switch 12 is shown with the first contact 16 in the closed position on the figure 2 and in the open position on the picture 3 .
  • the switch 12 is for example a vacuum switch.
  • the switch 12 comprises a vacuum chamber 15, the first contact 16 and the second contact 18 being located in the vacuum chamber 15.
  • the switch 12 is thus adapted to interrupt the passage of a high voltage electric current.
  • the switch 12 further comprises a sealing device 20, such as a sealing bellows.
  • the sealing device 20 is configured to guarantee the sealing of the vacuum chamber 15 around the first contact 16 which is movable relative to the vacuum chamber 15.
  • the control device 14 of the switch 12 is configured to control the switch 12 between the open position and the closed position.
  • the control device 14 is configured to move the first contact 16 in translation relative to the second contact 18 between the open position and the closed position.
  • the control device 14 comprises a control actuator 21 and a hydraulic transmission system 22 arranged between the control actuator 21 and the first contact 16 so that the control actuator 21 is capable of controlling the displacement of the first contact 16 via hydraulic transmission system 22.
  • the control actuator 21 comprises a fixed body 23, a movable part 24 which is movable relative to the body 23, and a drive device 26 for controlling the movement of the movable part 24 relative to the body 23.
  • the mobile part 24 is for example mounted mobile in translation relative to the body 23.
  • the drive device 26 is configured to generate a displacement force of the movable part 24 in translation in a first direction D1, as shown in particular on the picture 2 .
  • the drive device 26 is for example a pneumatic or electric actuator.
  • the control actuator 21 optionally comprises a return spring 28 configured to generate a return force for the movable part 24 in a rest position.
  • the spring 28 is for example configured to move the movable part 24 in a second direction D2 opposite to the first direction D1 with respect to the body 23, as shown in particular on the picture 3 .
  • drive device 26 is configured to exert a displacement force against spring 28 and move movable part 24 in translation relative to body 23.
  • the control actuator 21, and in particular the moving part 24, is connected to the hydraulic transmission system 22.
  • the hydraulic transmission system 22 comprises a first deformable reservoir 32 connected to the control actuator 21, a second deformable reservoir 34 connected to the first contact 16 of the switch 12, and a hydraulic circuit 36 fluidically connecting an interior volume 38 of the first deformable tank 32 to an interior volume 40 of the second deformable tank 34 so that a deformation of the first deformable tank 32 caused by the control actuator 21 causes a corresponding deformation of the second deformable tank 34 causing a corresponding displacement of the first contact 16.
  • the hydraulic circuit 36 is configured to transmit a hydraulic fluid 44 between the first deformable reservoir 32 and the second deformable tank 34.
  • the hydraulic circuit 36 comprises at least one flexible pipe 42 connecting the first deformable reservoir 32 to the second deformable reservoir 34.
  • control actuator 21 is connected to the first deformable reservoir 32 so that the movement of the movable part 24 causes a contraction or an expansion of the first deformable reservoir 32.
  • the hydraulic fluid 44 contained in the interior volumes 38 , 40 and in the hydraulic circuit 36 a contraction or an expansion of the first deformable tank 32 respectively causes an expansion or a contraction of the second deformable tank 34.
  • a displacement of the movable part 24 causing a contraction of the first deformable reservoir 32 causes an expansion of the second deformable reservoir 34 which causes a displacement of the first contact 16 with respect to the second contact 18 in one direction
  • a displacement of the part mobile 24 causing an expansion of the first deformable tank 32 causes a contraction of the second deformable tank 34 which causes a displacement of the first contact 16 relative to the second contact 18 in the other direction
  • the hydraulic transmission system 22 is for example configured so that a contraction of the first deformable reservoir 32 causes an expansion of the second deformable reservoir 34 which causes a displacement of the first contact 16 with respect to the second contact 18 towards the closed position, and a expansion of the first deformable tank 32 causes a contraction of the second deformable tank 34 which causes a displacement of the first contact 16 with respect to the second contact 18 towards the open position.
  • the piloting device 14 comprises a measuring device 46 configured to measure the position of the control actuator 21.
  • the measuring device 46 comprises at least one contact position sensor 48A, 48B configured to measure the position of the control actuator 21, and in particular of the moving part 24.
  • the measuring device 46 comprises for example a contact element 50 rigidly fixed to the movable part 24, and configured to come into contact with each sensor 48A, 48B according to the position of the movable part 24 of the control actuator 21
  • the contact element 50 is configured to trigger each sensor 48A, 48B.
  • Each position sensor 48A, 48B is for example a limit sensor configured to detect the position of the contact element 50 when this element is in contact with the position sensor 48A, 48B.
  • the measuring device 46 comprises two sensors, namely a first sensor 48A making it possible to detect that the mobile part 24 is in a first position corresponding to the closed position of the first contact 16, and a second contact position sensor 48B making it possible to detect that the movable part 24 is in a second position corresponding to the open position of the first contact 16.
  • the measuring device 46 comprises a single sensor or more than two sensors.
  • the interrupt system 8 further comprises a detection device 52 configured to detect the position of the first contact 16 with respect to the second contact 18.
  • the detection device 52 comprises a secondary hydraulic transmission system 54 comprising a first secondary deformable reservoir 56, a second secondary deformable reservoir 58 connected to the first contact 16 and a secondary hydraulic circuit 60 fluidically connecting an interior volume 62 of the first secondary deformable reservoir 56 to an interior volume 64 of the second secondary deformable tank 58.
  • the secondary hydraulic circuit 60 is configured to transmit a hydraulic fluid 66 between the first secondary deformable reservoir 56 and the second secondary deformable tank 58.
  • the second secondary deformable reservoir 58 is connected to the first contact 16 of the switch 12 so as to be deformed when the first contact 16 moves relative to the second contact 18 between the open position and the closed position.
  • the second secondary deformable reservoir 58 is connected to the first contact 16 so that a translation of the first contact 16 causes a contraction or an expansion of the second secondary deformable reservoir 58.
  • a contraction or an expansion of the second secondary deformable reservoir 58 caused by the first contact 16 respectively causes an expansion or a contraction of the first secondary deformable tank 56.
  • the first contact 16 is configured to cause a contraction of the second secondary deformable reservoir 58 when moving from the closed position to the open position.
  • a contraction of the second secondary deformable reservoir 58 causes an expansion of the first secondary deformable reservoir 56 (see in particular the picture 3 ).
  • An expansion of the second secondary deformable reservoir 58 for example caused by the displacement of the first contact 16 from the open position to the closed position, results in a contraction of the first secondary deformable reservoir 56 (see in particular the figure 2 ).
  • the secondary hydraulic circuit 60 comprises for example a flexible pipe 65 connecting the first secondary deformable reservoir 56 to the second secondary deformable reservoir 58.
  • the detection device 52 is in particular configured to detect the position of the first contact 16 independently of the hydraulic transmission system 22.
  • the detection device 52 further comprises an auxiliary position sensor 67 .
  • the first secondary deformable tank 56 is configured to activate/deactivate the auxiliary sensor 67 due to a displacement of the first contact 16.
  • a deformation of the first deformable reservoir 32 does not lead to a deformation of the second deformable reservoir 34 or vice versa, in particular because of a lack of transmission of the hydraulic fluid 44 between the interior volumes 40 and 38.
  • the displacement of the first contact 16 is likely to lead to an activation of the auxiliary sensor 67, despite the absence of transmission of the hydraulic fluid 44.
  • the detection device 52 is thus configured to detect the position of the first contact 16, even in the event of failure of the hydraulic circuit 36.
  • the auxiliary sensor 67 is configured to confirm the information supplied by each sensor 48A, 48B.
  • the interrupt system 8 further comprises a synchronization plate 69 connecting the second deformable tank 34 to the second secondary deformable tank 58.
  • the synchronization plate 69 is configured to transmit an expansion or contraction of the second deformable tank 34 to the second secondary deformable tank 58.
  • the synchronization plate 69 causes an expansion of the second secondary deformable tank 58.
  • the second deformable tank 34 and the second secondary deformable tank 58 are for example connected to each other and to the first contact 16 by the synchronization plate 69.
  • the first deformable reservoir 32 and the control actuator 21 are arranged in an actuator housing 68 remote from the switch 12, ie separate and distant from the switch 12.
  • the switch 12 is for example arranged in a switch housing 70, separate and remote from the actuator housing 68.
  • the switch housing 70 is for example made of an electrically insulating material.
  • the switch housing 70 is fixed directly to a transformer housing 72 of the transformer 4.
  • the first and second terminals 17, 19 are arranged on a wall of the transformer housing 72.
  • the interrupt system 8 is shown in a configuration in which the first contact 16 of the switch 12 is in the closed position with respect to the second contact 18.
  • the control actuator 21 is controlled in such a way that the drive device 26 exerts a force on the movable part 24 in the first direction D1.
  • the mobile part 24 compresses the first deformable reservoir 32 and the hydraulic fluid 44 is transmitted in part from the first deformable reservoir 32 to the second deformable reservoir 34, which deploys and exerts on the first contact 16 a displacement force of the first contact 16 in the closed position.
  • the second deformable reservoir 34 is thus expanding.
  • the mobile part 24 activates the sensor 48A, here via the contact element 50, which makes it possible to detect that the mobile part 24 is in the first position corresponding in principle to the closed position of the first contact 16.
  • the second secondary deformable tank 58 In the closed position of the first contact 16, the second secondary deformable tank 58 is expanding, which causes a contraction of the first secondary deformable tank 56.
  • the auxiliary sensor 67 detects the position of the first secondary tank 56 to confirm the closed position of the first contact 16 of switch 12.
  • the switch system 8 is shown in a configuration in which the first contact 16 of the switch 12 is in the open position with respect to the second contact 18.
  • the device 26 for moving the control actuator 21 is not active and the spring 28 returns the movable part 24 to the second position.
  • the mobile part 24 activates the second sensor 48B, here via the contact element 50.
  • the mobile part 24 in the second position causes an expansion of the first deformable reservoir 32, which causes, via the hydraulic transmission system 22, a contraction of the second deformable reservoir 34, which exerts on the first contact 16 a force moving or maintaining the first contact 16 in the open position.
  • the second secondary deformable reservoir 58 is compressed given the position of the first contact 16 and the first secondary deformable reservoir 56 is expanding.
  • the auxiliary sensor 67 detects expansion of the first secondary deformable reservoir 56 and thus confirms the open position of the first contact 16 of the switch 12.
  • At least one of the deformable reservoirs 32, 34, 56, 58 is for example a flexible bellows (or “bellow proof pear”).
  • a flexible bellows or “bellow proof pear”.
  • Such a tank comprises for example walls whose section forms cambers.
  • each of the flexible reservoirs 32, 34, 56, 58 is a flexible bellows.
  • Actuator 21 offset with respect to switch 12 makes it possible to provide a more compact switch 12, by dispensing with an electrical isolation device which must be provided between the actuator and the first contact whose movement is controlled by the actuator when the actuator is integrated into the switch 12.
  • the compact switch 12 can be installed directly on the transformer 4 which simplifies the electrical connection between the switch 12 and the transformer 4, in particular when it comes to a high voltage electric current. According to one example, switch 12 is integrated into transformer 4.
  • the hydraulic transmission system 22 connecting the actuator 21 to the switch 12 is simple in design. It makes it possible to offset the actuator 21 with respect to the switch 21 without constraint of positioning one with respect to the other, the pipes of the hydraulic transmission system 22 being able to present the desired length and chimney following an adequate path in depending on the positions of actuator 21 and switch 12.
  • the hydraulic transmission transmission system 22 is reliable, the risk of malfunction being low.
  • the detection device 52 making it possible to detect the position of the first contact 16 of the switch from a position sensor remote from the switch 12, for example in the actuator 21, and connected to the first contact 16 by a secondary hydraulic transmission system independent of that used to control the movement of the first contact 16, makes it possible to ensure the effective position of the first contact 16.
  • detection device 52 is electrically isolated from switch 12, in particular from high voltage. Also, as the hydraulic circuit 36 fluidically connects the interior volume 38 to the interior volume 40 so that a deformation of the first deformable reservoir 32 caused by the control actuator 21 causes a corresponding deformation of the second deformable reservoir 34 causing a corresponding displacement of the first contact 16, the detection device 52 and switch 12 are directly connected, which makes it possible to obtain a simple and reliable system.

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  • Fluid-Pressure Circuits (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Description

La présente invention concerne un système d'interruption d'un courant électrique, le système d'interruption comprenant un interrupteur comprenant un premier contact et un deuxième contact, le premier contact étant mobile par rapport au deuxième contact entre une position fermée permettant le passage du courant et une position ouverte interrompant le passage du courant, et, en outre, un dispositif de pilotage de l'interrupteur configuré pour piloter l'interrupteur entre la position ouverte et la position fermée.The present invention relates to a system for interrupting an electric current, the interruption system comprising a switch comprising a first contact and a second contact, the first contact being movable relative to the second contact between a closed position allowing passage of the current and an open position interrupting the flow of current, and, in addition, a device for controlling the switch configured to control the switch between the open position and the closed position.

CN 110544593 A concerne un mécanisme de connexion pour une prise USB dans un convertisseur de puissance et un équipement électrique qui révèle un système d'interruption d'un courant électrique selon la préambule de la revendication 1. CN 110544593 A relates to a connection mechanism for a USB socket in a power converter and electrical equipment which discloses a system for interrupting an electric current according to the preamble of claim 1.

D'autres systèmes d'interruption d'un courant électrique sont connus des documents DE 15 90 360 , EP 0 408 842 A2 et FR 1 317 246 A .Other systems for interrupting an electric current are known from the documents FROM 15 90 360 , EP 0 408 842 A2 and FR 1 317 246 A .

La présente invention se rapporte également à un véhicule ferroviaire comprenant un tel système d'interruption.The present invention also relates to a railway vehicle comprising such an interruption system.

Il est possible de prévoir un dispositif de pilotage comprenant un dispositif isolateur, rigidement fixée d'un côté au premier contact, et de l'autre côté à un actionneur du dispositif de pilotage. Le dispositif isolateur est configuré pour isoler électriquement l'interrupteur, et notamment le premier contact, par rapport à l'actionneur. L'actionneur est configuré pour déplacer en translation le dispositif isolateur et ainsi le premier contact pour commander l'ouverture ou la fermeture de l'interrupteur.It is possible to provide a control device comprising an isolator device, rigidly fixed on one side to the first contact, and on the other side to an actuator of the control device. The isolator device is configured to electrically isolate the switch, and in particular the first contact, with respect to the actuator. The actuator is configured to move the isolator device in translation and thus the first contact to control the opening or closing of the switch.

Cependant, pour garantir une isolation électrique suffisante, un tel dispositif isolateur doit respecter des distances minimales d'isolation. Ainsi, le dispositif isolateur présente une grande taille, et, en conséquence, le système d'interruption est encombrant.However, to guarantee sufficient electrical insulation, such an isolator device must comply with minimum insulation distances. Thus, the isolator device has a large size, and, consequently, the interrupt system is bulky.

Il est aussi possible de prévoir un dispositif de pilotage configuré pour piloter l'interrupteur par l'application d'une pression hydraulique au premier contact. Cependant, un tel dispositif de pilotage nécessite un système hydraulique compliqué et encombrant.It is also possible to provide a control device configured to control the switch by applying hydraulic pressure to the first contact. However, such a piloting device requires a complicated and cumbersome hydraulic system.

Un des buts de l'invention est ainsi de proposer un système d'interruption d'un courant électrique qui soit simple et qui puisse être réalisée de manière compacte.One of the aims of the invention is thus to propose a system for interrupting an electric current which is simple and which can be produced in a compact manner.

A cet effet, l'invention propose un système d'interruption d'un courant électrique, comprenant :

  • un interrupteur comprenant un premier contact et un deuxième contact, le premier contact étant mobile par rapport au deuxième contact entre une position fermée permettant le passage du courant et une position ouverte interrompant le passage du courant ;
  • un dispositif de pilotage de l'interrupteur configuré pour piloter l'interrupteur entre la position ouverte et la position fermée,
To this end, the invention proposes a system for interrupting an electric current, comprising:
  • a switch comprising a first contact and a second contact, the first contact being movable relative to the second contact between a closed position allowing the passage of current and an open position interrupting the passage of current;
  • a device for controlling the switch configured to control the switch between the open position and the closed position,

le dispositif de pilotage comprenant un actionneur de commande, et un système de transmission hydraulique disposé entre l'actionneur de commande et le premier contact de sorte que l'actionneur de commande est apte à commander le déplacement du premier contact via le système de transmission hydraulique, le système de transmission hydraulique comprenant un premier réservoir déformable connecté à l'actionneur de commande, un deuxième réservoir déformable connecté au premier contact de l'interrupteur, et un circuit hydraulique reliant fluidiquement un volume intérieur du premier réservoir déformable à un volume intérieur du deuxième réservoir déformable de sorte qu'une déformation du premier réservoir déformable provoquée par l'actionneur de commande entraîne une déformation correspondante du deuxième réservoir déformable provoquant un déplacement correspondant du premier contact, le système d'interruption comprend en outre un dispositif de détection configuré pour détecter la position du premier contact par rapport au deuxième contact.the piloting device comprising a control actuator, and a hydraulic transmission system disposed between the control actuator and the first contact such that the control actuator is capable of controlling the movement of the first contact via the hydraulic transmission system, the hydraulic transmission system comprising a first deformable reservoir connected to the control actuator, a second deformable reservoir connected to the first contact of the switch, and a hydraulic circuit fluidically connecting an interior volume of the first deformable tank to an interior volume of the second deformable tank so that a deformation of the first deformable tank caused by the control actuator causes a corresponding deformation of the second deformable tank causing a corresponding displacement of the first contact, the interruption system comprises further a detection device configured to detect the position of the first contact relative to the second contact.

Suivant d'autres aspects avantageux de l'invention, le système d'interruption comprend une ou plusieurs des caractéristiques suivantes, prises isolément ou suivant toutes les combinaisons techniquement possibles :

  • le dispositif de détection est configuré pour détecter la position du premier contact de manière indépendante d'une position du premier réservoir déformable ;
  • le dispositif de détection comprend un système de transmission hydraulique secondaire comprenant un premier réservoir déformable secondaire, un deuxième réservoir déformable secondaire et un circuit hydraulique secondaire reliant fluidiquement un volume intérieur du premier réservoir déformable secondaire à un volume intérieur du deuxième réservoir déformable secondaire ;
  • le premier réservoir déformable secondaire est configuré pour ouvrir ou fermer un capteur auxiliaire du fait d'un déplacement du premier contact de l'interrupteur ;
  • le deuxième réservoir déformable secondaire est connecté au premier contact de l'interrupteur de manière à être déformé lors du déplacement du premier contact entre la position ouverte et la position fermée, le circuit hydraulique secondaire reliant fluidiquement le volume intérieur du deuxième réservoir déformable secondaire au volume intérieur du premier réservoir déformable secondaire, de sorte qu'une déformation du deuxième réservoir déformable secondaire entraîne une déformation correspondante du premier réservoir déformable secondaire provoquant une ouverture/fermeture du capteur auxiliaire ;
  • l'interrupteur est un interrupteur à vide ;
  • le circuit hydraulique du système de transmission hydraulique comprend au moins un tuyau flexible reliant le premier réservoir déformable au deuxième réservoir déformable ;
  • le premier réservoir déformable et l'actionneur de commande sont disposés dans un boîtier séparé et distant de l'interrupteur, le circuit hydraulique s'étendant entre le boîtier et l'interrupteur ;
  • le dispositif de pilotage comprend un dispositif de mesure de la position de l'actionneur de commande comprenant au moins un capteur de position par contact configuré pour mesurer la position de l'actionneur de commande.
According to other advantageous aspects of the invention, the interruption system comprises one or more of the following characteristics, taken in isolation or in all technically possible combinations:
  • the detection device is configured to detect the position of the first contact independently of a position of the first deformable reservoir;
  • the detection device comprises a secondary hydraulic transmission system comprising a first secondary deformable reservoir, a second secondary deformable reservoir and a secondary hydraulic circuit fluidically connecting an interior volume of the first secondary deformable reservoir to an interior volume of the second secondary deformable reservoir;
  • the first secondary deformable reservoir is configured to open or close an auxiliary sensor due to a displacement of the first contact of the switch;
  • the second secondary deformable tank is connected to the first contact of the switch so as to be deformed when the first contact moves between the open position and the closed position, the secondary hydraulic circuit fluidically connecting the interior volume of the second secondary deformable tank to the volume interior of the first secondary deformable reservoir, so that a deformation of the second secondary deformable reservoir causes a corresponding deformation of the first secondary deformable reservoir causing an opening/closing of the auxiliary sensor;
  • the switch is a vacuum switch;
  • the hydraulic circuit of the hydraulic transmission system comprises at least one flexible pipe connecting the first deformable reservoir to the second deformable reservoir;
  • the first deformable reservoir and the control actuator are arranged in a separate casing remote from the switch, the hydraulic circuit extending between the casing and the switch;
  • the piloting device comprises a device for measuring the position of the control actuator comprising at least one position sensor per contact configured to measure the position of the control actuator.

L'invention propose aussi un véhicule ferroviaire comprenant un système d'interruption tel que décrit ci-dessus.The invention also proposes a railway vehicle comprising an interruption system as described above.

L'invention et ses avantages seront mieux compris à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple non limitatif, et faite en référence aux dessins annexés, sur lesquels :

  • [Fig 1] la Figure 1 est une vue schématique en coupe d'une partie d'un véhicule ferroviaire comprenant un système d'interruption selon l'invention ;
  • [Fig 2] la Figure 2 est une vue schématique en coupe du système d'interruption de la figure 1 comprenant un interrupteur dans une position fermée ; et
  • [Fig 3] la Figure 3 est une vue schématique en coupe du système d'interruption de la figure 1 comprenant un interrupteur dans une position ouverte.
The invention and its advantages will be better understood on reading the following description, given solely by way of non-limiting example, and made with reference to the appended drawings, in which:
  • [ Fig 1 ] the Figure 1 is a schematic sectional view of part of a railway vehicle comprising an interrupting system according to the invention;
  • [ Fig 2 ] the Figure 2 is a schematic sectional view of the interrupt system of the figure 1 comprising a switch in a closed position; and
  • [ Fig.3 ] the Figure 3 is a schematic sectional view of the interrupt system of the figure 1 comprising a switch in an open position.

Sur la figure 1, un véhicule ferroviaire 1 comprend un pantographe 2, un transformateur 4, au moins une charge électrique ou consommateur électrique 6 et un système d'interruption 8 d'un courant électrique.On the figure 1 , a railway vehicle 1 comprises a pantograph 2, a transformer 4, at least one electric load or electric consumer 6 and an interrupt system 8 for an electric current.

Le pantographe 2 est par exemple configuré pour capter un courant électrique sur une caténaire 10 afin d'alimenter le véhicule ferroviaire 1 en électricité. Lors d'un fonctionnement du véhicule ferroviaire 1, un courant électrique traverse, à partir de la caténaire 10, le pantographe 2 et le transformateur 4 pour alimenter le consommateur électrique 6.The pantograph 2 is for example configured to pick up an electric current on a catenary 10 in order to supply the railway vehicle 1 with electricity. During operation of the railway vehicle 1, an electric current passes through, from the catenary 10, the pantograph 2 and the transformer 4 to supply the electrical consumer 6.

Le courant électrique est notamment un courant alternatif. En variante, le courant électrique est un courant continu.The electric current is in particular an alternating current. Alternatively, the electric current is a direct current.

Le transformateur 4 est configuré pour transformer le courant électrique prélevé sur la caténaire en un courant électrique adapté pour l'alimentation du consommateur électrique 6.The transformer 4 is configured to transform the electric current taken from the catenary into an electric current suitable for supplying the electrical consumer 6.

De préférence, le transformateur 4 est un transformateur configuré pour recevoir un courant électrique à haute tension.Preferably, the transformer 4 is a transformer configured to receive a high voltage electric current.

Par « haute tension », il est entendu une tension comprise entre 5 kV et 50 kV, de préférence entre 10 kV et 30 kV. Par exemple, la haute tension est une tension sensiblement égale à 15 kV ou sensiblement égale à 25 kV.“High voltage” means a voltage between 5 kV and 50 kV, preferably between 10 kV and 30 kV. For example, the high voltage is a voltage substantially equal to 15 kV or substantially equal to 25 kV.

Le consommateur électrique 6 est un dispositif ou un système embarqué du véhicule ferroviaire 1 qui consomme de l'électricité pour son fonctionnement, par exemple un moteur de traction ou un système de climatisation et/ou de chauffage du véhicule ferroviaire 1. Le véhicule ferroviaire 1 comprend généralement une pluralité de consommateurs électriques 6.The electrical consumer 6 is a device or an on-board system of the railway vehicle 1 which consumes electricity for its operation, for example a traction motor or an air conditioning and/or heating system of the railway vehicle 1. The rail vehicle 1 generally comprises a plurality of electrical consumers 6.

Le système d'interruption 8 est configuré pour interrompre le courant électrique entre le pantographe 2 et toute ou partie du primaire du transformateur 4, par exemple en fonction d'une configuration du transformateur 4.The interruption system 8 is configured to interrupt the electric current between the pantograph 2 and all or part of the primary of the transformer 4, for example according to a configuration of the transformer 4.

Le système d'interruption 8 comprend un interrupteur 12 et un dispositif de pilotage 14 de l'interrupteur 12.The interrupt system 8 comprises a switch 12 and a control device 14 of the switch 12.

L'interrupteur 12 comprend un premier contact 16 relié électriquement à une première borne 17 du système d'interruption 8 et un deuxième contact 18 relié électriquement à une deuxième borne 19 du système d'interruption 8. Le premier contact 16 est mobile par rapport au deuxième contact 18 entre une position fermée permettant le passage du courant électrique entre le premier contact 16 et le deuxième contact 18 et une position ouverte interrompant le passage du courant électrique.The switch 12 comprises a first contact 16 electrically connected to a first terminal 17 of the interrupt system 8 and a second contact 18 electrically connected to a second terminal 19 of the interrupt system 8. The first contact 16 is movable relative to the second contact 18 between a closed position allowing the passage of electric current between the first contact 16 and the second contact 18 and an open position interrupting the passage of electric current.

Le premier contact 16 est par exemple mobile en translation par rapport au deuxième contact 18 entre la position ouverte et la position fermée.The first contact 16 is for example movable in translation relative to the second contact 18 between the open position and the closed position.

Dans la position ouverte, l'interrupteur 12 est configuré pour ne transmettre aucun courant électrique entre le premier contact 16 et le deuxième contact 18. L'interrupteur 12 est représenté avec le premier contact 16 en position fermée sur la figure 2 et en position ouverte sur la figure 3.In the open position, the switch 12 is configured not to transmit any electric current between the first contact 16 and the second contact 18. The switch 12 is shown with the first contact 16 in the closed position on the figure 2 and in the open position on the picture 3 .

L'interrupteur 12 est par exemple un interrupteur à vide. L'interrupteur 12 comprend une chambre à vide 15, le premier contact 16 et le deuxième contact 18 étant situé dans la chambre à vide 15. L'interrupteur 12 est ainsi adapté pour interrompre le passage d'un courant électrique à haute tension.The switch 12 is for example a vacuum switch. The switch 12 comprises a vacuum chamber 15, the first contact 16 and the second contact 18 being located in the vacuum chamber 15. The switch 12 is thus adapted to interrupt the passage of a high voltage electric current.

L'interrupteur 12 comprend en outre un dispositif d'étanchéité 20, tel qu'un soufflet d'étanchéité. Le dispositif d'étanchéité 20 est configuré pour garantir l'étanchéité de la chambre à vide 15 autour du premier contact 16 qui est mobile par rapport à la chambre à vide 15.The switch 12 further comprises a sealing device 20, such as a sealing bellows. The sealing device 20 is configured to guarantee the sealing of the vacuum chamber 15 around the first contact 16 which is movable relative to the vacuum chamber 15.

Le dispositif de pilotage 14 de l'interrupteur 12 est configuré pour piloter l'interrupteur 12 entre la position ouverte et la position fermée. En particulier, le dispositif de pilotage 14 est configuré pour déplacer le premier contact 16 en translation par rapport au deuxième contact 18 entre la position ouverte et la position fermée.The control device 14 of the switch 12 is configured to control the switch 12 between the open position and the closed position. In particular, the control device 14 is configured to move the first contact 16 in translation relative to the second contact 18 between the open position and the closed position.

Comme représenté dans l'exemple des figures 2 et 3, le dispositif de pilotage 14 comprend un actionneur de commande 21 et un système de transmission hydraulique 22 disposé entre l'actionneur de commande 21 et le premier contact 16 de sorte que l'actionneur de commande 21 est apte à commander le déplacement du premier contact 16 via le système de transmission hydraulique 22.As shown in the example of figure 2 and 3 , the control device 14 comprises a control actuator 21 and a hydraulic transmission system 22 arranged between the control actuator 21 and the first contact 16 so that the control actuator 21 is capable of controlling the displacement of the first contact 16 via hydraulic transmission system 22.

L'actionneur de commande 21 comprend un corps 23 fixe, une partie mobile 24 qui est mobile par rapport au corps 23, et un dispositif d'entraînement 26 pour commander le déplacement de la partie mobile 24 par rapport au corps 23.The control actuator 21 comprises a fixed body 23, a movable part 24 which is movable relative to the body 23, and a drive device 26 for controlling the movement of the movable part 24 relative to the body 23.

La partie mobile 24 est par exemple montée mobile en translation par rapport au corps 23.The mobile part 24 is for example mounted mobile in translation relative to the body 23.

Le dispositif d'entraînement 26 est configuré pour générer une force de déplacement de la partie mobile 24 en translation dans une première direction D1, comme représenté notamment sur la figure 2.The drive device 26 is configured to generate a displacement force of the movable part 24 in translation in a first direction D1, as shown in particular on the picture 2 .

Le dispositif d'entraînement 26 est par exemple un actionneur pneumatique ou électrique.The drive device 26 is for example a pneumatic or electric actuator.

L'actionneur de commande 21 comprend en option un ressort 28 de rappel configuré pour générer une force de rappel de la partie mobile 24 dans une position de repos.The control actuator 21 optionally comprises a return spring 28 configured to generate a return force for the movable part 24 in a rest position.

Le ressort 28 est par exemple configuré pour déplacer la partie mobile 24 selon une deuxième direction D2 opposée à la première direction D1 par rapport au corps 23, comme représenté notamment sur la figure 3.The spring 28 is for example configured to move the movable part 24 in a second direction D2 opposite to the first direction D1 with respect to the body 23, as shown in particular on the picture 3 .

Dans ce cas, le dispositif d'entraînement 26 est configuré pour exercer une force de déplacement à l'encontre du ressort 28 et déplacer la partie mobile 24 en translation par rapport au corps 23.In this case, drive device 26 is configured to exert a displacement force against spring 28 and move movable part 24 in translation relative to body 23.

L'actionneur de commande 21, et en particulier la partie mobile 24, est connecté au système de transmission hydraulique 22.The control actuator 21, and in particular the moving part 24, is connected to the hydraulic transmission system 22.

Le système de transmission hydraulique 22 comprend un premier réservoir déformable 32 connecté à l'actionneur de commande 21, un deuxième réservoir déformable 34 connecté au premier contact 16 de l'interrupteur 12, et un circuit hydraulique 36 reliant fluidiquement un volume intérieur 38 du premier réservoir déformable 32 à un volume intérieur 40 du deuxième réservoir déformable 34 de sorte qu'une déformation du premier réservoir déformable 32 provoquée par l'actionneur de commande 21 entraîne une déformation correspondante du deuxième réservoir déformable 34 provoquant un déplacement correspondant du premier contact 16.The hydraulic transmission system 22 comprises a first deformable reservoir 32 connected to the control actuator 21, a second deformable reservoir 34 connected to the first contact 16 of the switch 12, and a hydraulic circuit 36 fluidically connecting an interior volume 38 of the first deformable tank 32 to an interior volume 40 of the second deformable tank 34 so that a deformation of the first deformable tank 32 caused by the control actuator 21 causes a corresponding deformation of the second deformable tank 34 causing a corresponding displacement of the first contact 16.

Par « reliant fluidiquement un volume intérieur 38 du premier réservoir déformable 32 à un volume intérieur 40 du deuxième réservoir déformable 34 », il est entendu que le circuit hydraulique 36 est configuré pour transmettre un fluide hydraulique 44 entre le premier réservoir déformable 32 et le deuxième réservoir déformable 34.By "fluidically connecting an interior volume 38 of the first deformable reservoir 32 to an interior volume 40 of the second deformable reservoir 34", it is understood that the hydraulic circuit 36 is configured to transmit a hydraulic fluid 44 between the first deformable reservoir 32 and the second deformable tank 34.

Notamment, le circuit hydraulique 36 comprend au moins un tuyau flexible 42 reliant le premier réservoir déformable 32 au deuxième réservoir déformable 34.In particular, the hydraulic circuit 36 comprises at least one flexible pipe 42 connecting the first deformable reservoir 32 to the second deformable reservoir 34.

En particulier, l'actionneur de commande 21 est relié au premier réservoir déformable 32 de sorte que le déplacement de la partie mobile 24 provoque une contraction ou une expansion du premier réservoir déformable 32. Par échange du fluide hydraulique 44 contenu dans les volumes intérieurs 38, 40 et dans le circuit hydraulique 36, une contraction ou une expansion du premier réservoir déformable 32 provoque respectivement une expansion ou une contraction du deuxième réservoir déformable 34.In particular, the control actuator 21 is connected to the first deformable reservoir 32 so that the movement of the movable part 24 causes a contraction or an expansion of the first deformable reservoir 32. By exchange of the hydraulic fluid 44 contained in the interior volumes 38 , 40 and in the hydraulic circuit 36, a contraction or an expansion of the first deformable tank 32 respectively causes an expansion or a contraction of the second deformable tank 34.

En fonctionnement, un déplacement de la partie mobile 24 provoquant une contraction du premier réservoir déformable 32 provoque une expansion du deuxième réservoir déformable 34 qui provoque un déplacement du premier contact 16 par rapport au deuxième contact 18 dans un sens, et un déplacement de la partie mobile 24 provoquant une expansion du premier réservoir déformable 32 provoque une contraction du deuxième réservoir déformable 34 qui provoque un déplacement du premier contact 16 par rapport au deuxième contact 18 dans l'autre sens.In operation, a displacement of the movable part 24 causing a contraction of the first deformable reservoir 32 causes an expansion of the second deformable reservoir 34 which causes a displacement of the first contact 16 with respect to the second contact 18 in one direction, and a displacement of the part mobile 24 causing an expansion of the first deformable tank 32 causes a contraction of the second deformable tank 34 which causes a displacement of the first contact 16 relative to the second contact 18 in the other direction.

Le système de transmission hydraulique 22 est par exemple configuré de façon qu'une contraction du premier réservoir déformable 32 provoque une expansion du deuxième réservoir déformable 34 qui provoque un déplacement du premier contact 16 par rapport au deuxième contact 18 vers la position fermée, et une expansion du premier réservoir déformable 32 provoque une contraction du deuxième réservoir déformable 34 qui provoque un déplacement du premier contact 16 par rapport au deuxième contact 18 vers la position ouverte.The hydraulic transmission system 22 is for example configured so that a contraction of the first deformable reservoir 32 causes an expansion of the second deformable reservoir 34 which causes a displacement of the first contact 16 with respect to the second contact 18 towards the closed position, and a expansion of the first deformable tank 32 causes a contraction of the second deformable tank 34 which causes a displacement of the first contact 16 with respect to the second contact 18 towards the open position.

Selon un mode de réalisation particulier, le dispositif de pilotage 14 comprend un dispositif de mesure 46 configuré pour mesurer la position de l'actionneur de commande 21.According to a particular embodiment, the piloting device 14 comprises a measuring device 46 configured to measure the position of the control actuator 21.

Le dispositif de mesure 46 comprend au moins un capteur 48A, 48B de position par contact configuré pour mesurer la position de l'actionneur de commande 21, et en particulier de la partie mobile 24.The measuring device 46 comprises at least one contact position sensor 48A, 48B configured to measure the position of the control actuator 21, and in particular of the moving part 24.

Le dispositif de mesure 46 comprend par exemple un élément de contact 50 rigidement fixé à la partie mobile 24, et configuré pour rentrer en contact avec chaque capteur 48A, 48B en fonction de la position de la partie mobile 24 de l'actionneur de commande 21. En particulier, l'élément de contact 50 est configuré pour déclencher chaque capteur 48A, 48B.The measuring device 46 comprises for example a contact element 50 rigidly fixed to the movable part 24, and configured to come into contact with each sensor 48A, 48B according to the position of the movable part 24 of the control actuator 21 In particular, the contact element 50 is configured to trigger each sensor 48A, 48B.

Chaque capteur de position 48A, 48B est par exemple un capteur de fin de course configuré pour détecter la position de l'élément de contact 50 lorsque cet élément est en contact avec le capteur de position 48A, 48B.Each position sensor 48A, 48B is for example a limit sensor configured to detect the position of the contact element 50 when this element is in contact with the position sensor 48A, 48B.

Dans l'exemple des figures, le dispositif de mesure 46 comprend deux capteurs, à savoir un premier capteur 48A permettant de détecter que la partie mobile 24 est dans une première position correspondant à la position fermée du premier contact 16, et un deuxième capteur 48B de position par contact permettant de détecter que la partie mobile 24 est dans une deuxième position correspondant à la position ouverte du premier contact 16. En variante, le dispositif de mesure 46 comprend un seul capteur ou plus que deux capteurs.In the example of the figures, the measuring device 46 comprises two sensors, namely a first sensor 48A making it possible to detect that the mobile part 24 is in a first position corresponding to the closed position of the first contact 16, and a second contact position sensor 48B making it possible to detect that the movable part 24 is in a second position corresponding to the open position of the first contact 16. Alternatively, the measuring device 46 comprises a single sensor or more than two sensors.

Le système d'interruption 8 comprend en outre un dispositif de détection 52 configuré pour détecter la position du premier contact 16 par rapport au deuxième contact 18.The interrupt system 8 further comprises a detection device 52 configured to detect the position of the first contact 16 with respect to the second contact 18.

Le dispositif de détection 52 comprend un système de transmission hydraulique secondaire 54 comprenant un premier réservoir déformable secondaire 56, un deuxième réservoir déformable secondaire 58 connecté au premier contact 16 et un circuit hydraulique secondaire 60 reliant fluidiquement un volume intérieur 62 du premier réservoir déformable secondaire 56 à un volume intérieur 64 du deuxième réservoir déformable secondaire 58.The detection device 52 comprises a secondary hydraulic transmission system 54 comprising a first secondary deformable reservoir 56, a second secondary deformable reservoir 58 connected to the first contact 16 and a secondary hydraulic circuit 60 fluidically connecting an interior volume 62 of the first secondary deformable reservoir 56 to an interior volume 64 of the second secondary deformable tank 58.

Par « reliant fluidiquement un volume intérieur 62 du premier réservoir déformable secondaire 56 à un volume intérieur 64 du deuxième réservoir déformable secondaire 58 », il est entendu que le circuit hydraulique secondaire 60 est configuré pour transmettre un fluide hydraulique 66 entre le premier réservoir déformable secondaire 56 et le deuxième réservoir déformable secondaire 58.By "fluidly connecting an interior volume 62 of the first secondary deformable reservoir 56 to an interior volume 64 of the second secondary deformable reservoir 58", it is understood that the secondary hydraulic circuit 60 is configured to transmit a hydraulic fluid 66 between the first secondary deformable reservoir 56 and the second secondary deformable tank 58.

Dans un exemple de réalisation, représenté sur les figures 2 et 3, le deuxième réservoir déformable secondaire 58 est connecté au premier contact 16 de l'interrupteur 12 de manière à être déformé lors du déplacement du premier contact 16 par rapport à au deuxième contact 18 entre la position ouverte et la position fermée. En particulier, le deuxième réservoir déformable secondaire 58 est connecté au premier contact 16 de manière qu'une translation du premier contact 16 entraîne une contraction ou une expansion du deuxième réservoir déformable secondaire 58. Ainsi, une contraction ou une expansion du deuxième réservoir déformable secondaire 58 provoquée par le premier contact 16 entraîne respectivement une expansion ou une contraction du premier réservoir déformable secondaire 56.In an exemplary embodiment, shown in the figure 2 and 3 , the second secondary deformable reservoir 58 is connected to the first contact 16 of the switch 12 so as to be deformed when the first contact 16 moves relative to the second contact 18 between the open position and the closed position. In particular, the second secondary deformable reservoir 58 is connected to the first contact 16 so that a translation of the first contact 16 causes a contraction or an expansion of the second secondary deformable reservoir 58. Thus, a contraction or an expansion of the second secondary deformable reservoir 58 caused by the first contact 16 respectively causes an expansion or a contraction of the first secondary deformable tank 56.

En particulier, le premier contact 16 est configuré pour provoquer une contraction, du deuxième réservoir déformable secondaire 58 lors d'un déplacement de la position fermée à la position ouverte. Par échange d'un fluide hydraulique 66 contenu dans les volumes intérieurs 62, 64 et dans le circuit hydraulique secondaire 60, une contraction du deuxième réservoir déformable secondaire 58 provoque une expansion du premier réservoir déformable secondaire 56 (voir en particulier la figure 3). Une expansion du deuxième réservoir déformable secondaire 58, par exemple entraînée par le déplacement du premier contact 16 de la position ouverte à la positon fermée, résulte en une contraction du premier réservoir déformable secondaire 56 (voir en particulier la figure 2).In particular, the first contact 16 is configured to cause a contraction of the second secondary deformable reservoir 58 when moving from the closed position to the open position. By exchange of a hydraulic fluid 66 contained in the interior volumes 62, 64 and in the secondary hydraulic circuit 60, a contraction of the second secondary deformable reservoir 58 causes an expansion of the first secondary deformable reservoir 56 (see in particular the picture 3 ). An expansion of the second secondary deformable reservoir 58, for example caused by the displacement of the first contact 16 from the open position to the closed position, results in a contraction of the first secondary deformable reservoir 56 (see in particular the figure 2 ).

Le circuit hydraulique secondaire 60 comprend par exemple un tuyau flexible 65 reliant le premier réservoir déformable secondaire 56 au deuxième réservoir déformable secondaire 58.The secondary hydraulic circuit 60 comprises for example a flexible pipe 65 connecting the first secondary deformable reservoir 56 to the second secondary deformable reservoir 58.

Le dispositif de détection 52 est en particulier configuré pour détecter la position du premier contact 16 de manière indépendante du système de transmission hydraulique 22.The detection device 52 is in particular configured to detect the position of the first contact 16 independently of the hydraulic transmission system 22.

Par exemple, le dispositif de détection 52 comprend en outre un capteur auxiliaire 67 de position. Notamment, le premier réservoir déformable secondaire 56 est configuré pour activer/désactiver le capteur auxiliaire 67 du fait d'un déplacement du premier contact 16.For example, the detection device 52 further comprises an auxiliary position sensor 67 . In particular, the first secondary deformable tank 56 is configured to activate/deactivate the auxiliary sensor 67 due to a displacement of the first contact 16.

Par exemple, lors d'une défaillance du circuit hydraulique 36, une déformation du premier réservoir déformable 32 n'entraîne pas une déformation du deuxième réservoir déformable 34 ou vice versa, notamment à cause d'un manque de transmission du fluide hydraulique 44 entre les volumes intérieurs 40 et 38. Le déplacement du premier contact 16 est susceptible d'entraîner une activation du capteur auxiliaire 67, malgré l'absence de transmission du fluide hydraulique 44.For example, during a failure of the hydraulic circuit 36, a deformation of the first deformable reservoir 32 does not lead to a deformation of the second deformable reservoir 34 or vice versa, in particular because of a lack of transmission of the hydraulic fluid 44 between the interior volumes 40 and 38. The displacement of the first contact 16 is likely to lead to an activation of the auxiliary sensor 67, despite the absence of transmission of the hydraulic fluid 44.

Le dispositif de détection 52 est ainsi configuré pour détecter la position du premier contact 16, même en cas de défaillance du circuit hydraulique 36. En particulier, le capteur auxiliaire 67 est configuré pour confirmer l'information fourni par chaque capteur 48A, 48B.The detection device 52 is thus configured to detect the position of the first contact 16, even in the event of failure of the hydraulic circuit 36. In particular, the auxiliary sensor 67 is configured to confirm the information supplied by each sensor 48A, 48B.

Selon un exemple de réalisation, le système d'interruption 8 comprend en outre une plaque de synchronisation 69 reliant le deuxième réservoir déformable 34 au deuxième réservoir déformable secondaire 58. La plaque de synchronisation 69 est configurée pour transmettre une expansion ou contraction du deuxième réservoir déformable 34 au deuxième réservoir déformable secondaire 58.According to an exemplary embodiment, the interrupt system 8 further comprises a synchronization plate 69 connecting the second deformable tank 34 to the second secondary deformable tank 58. The synchronization plate 69 is configured to transmit an expansion or contraction of the second deformable tank 34 to the second secondary deformable tank 58.

Par exemple, lors d'une expansion du deuxième réservoir déformable 34, la plaque de synchronisation 69 provoque une expansion du deuxième réservoir déformable secondaire 58.For example, during an expansion of the second deformable tank 34, the synchronization plate 69 causes an expansion of the second secondary deformable tank 58.

Le deuxième réservoir déformable 34 et le deuxième réservoir déformable secondaire 58 sont par exemple reliés entre eux et au premier contact 16 par la plaque de synchronisation 69.The second deformable tank 34 and the second secondary deformable tank 58 are for example connected to each other and to the first contact 16 by the synchronization plate 69.

Comme représenté dans les exemples des figures 2 et 3, le premier réservoir déformable 32 et l'actionneur de commande 21 sont disposés dans un boîtier d'actionneur 68 déporté par rapport à l'interrupteur 12, i.e. séparé et distant de l'interrupteur 12. Le circuit hydraulique 36, et le cas échéant le circuit hydraulique secondaire 54, s'étendent entre le boîtier d'actionneur 68 et l'interrupteur 12.As shown in the examples of figure 2 and 3 , the first deformable reservoir 32 and the control actuator 21 are arranged in an actuator housing 68 remote from the switch 12, ie separate and distant from the switch 12. The hydraulic circuit 36, and if necessary the secondary hydraulic circuit 54, extend between the actuator housing 68 and the switch 12.

L'interrupteur 12 est par exemple disposé dans un boîtier d'interrupteur 70, séparé et distant du boîtier d'actionneur 68. Le boîtier d'interrupteur 70 est par exemple réalisé dans un matériau isolant électriquement.The switch 12 is for example arranged in a switch housing 70, separate and remote from the actuator housing 68. The switch housing 70 is for example made of an electrically insulating material.

Selon un mode de réalisation, tel que par exemple représenté sur la figure 1, le boîtier d'interrupteur 70 est fixé directement à un boîtier de transformateur 72 du transformateur 4. En particulier, la première et deuxième bornes 17, 19 sont disposées sur une paroi du boîtier de transformateur 72.According to one embodiment, such as for example shown in the figure 1 , the switch housing 70 is fixed directly to a transformer housing 72 of the transformer 4. In particular, the first and second terminals 17, 19 are arranged on a wall of the transformer housing 72.

Sur la figure 2, le système d'interruption 8 est représenté dans une configuration dans laquelle le premier contact 16 de l'interrupteur 12 est dans la position fermée par rapport au deuxième contact 18.On the figure 2 , the interrupt system 8 is shown in a configuration in which the first contact 16 of the switch 12 is in the closed position with respect to the second contact 18.

Dans la position fermée, l'actionneur de commande 21 est commandé de telle manière que le dispositif d'entraînement 26 exerce une force sur la partie mobile 24 selon la première direction D1. La partie mobile 24 comprime le premier réservoir déformable 32 et le fluide hydraulique 44 est transmis en partie du premier réservoir déformable 32 vers le deuxième réservoir déformable 34, qui se déploie et exerce sur le premier contact 16 une force de déplacement du premier contact 16 dans la position fermée. Le deuxième réservoir déformable 34 est ainsi en expansion.In the closed position, the control actuator 21 is controlled in such a way that the drive device 26 exerts a force on the movable part 24 in the first direction D1. The mobile part 24 compresses the first deformable reservoir 32 and the hydraulic fluid 44 is transmitted in part from the first deformable reservoir 32 to the second deformable reservoir 34, which deploys and exerts on the first contact 16 a displacement force of the first contact 16 in the closed position. The second deformable reservoir 34 is thus expanding.

La partie mobile 24 active le capteur 48A, ici via l'élément de contact 50, ce qui permet de détecter que la partie mobile 24 est dans la première position correspondant en principe à la position fermée du premier contact 16.The mobile part 24 activates the sensor 48A, here via the contact element 50, which makes it possible to detect that the mobile part 24 is in the first position corresponding in principle to the closed position of the first contact 16.

Dans la position fermée du premier contact 16, le deuxième réservoir déformable secondaire 58 est en expansion, ce qui provoque une contraction du premier réservoir déformable secondaire 56. Le capteur auxiliaire 67 détecte la position du premier réservoir secondaire 56 pour confirmer la position fermée du premier contact 16 de l'interrupteur 12.In the closed position of the first contact 16, the second secondary deformable tank 58 is expanding, which causes a contraction of the first secondary deformable tank 56. The auxiliary sensor 67 detects the position of the first secondary tank 56 to confirm the closed position of the first contact 16 of switch 12.

Sur la figure 3, le système d'interrupteur 8 est représenté dans une configuration dans laquelle le premier contact 16 de l'interrupteur 12 est dans la position ouverte par rapport au deuxième contact 18.On the picture 3 , the switch system 8 is shown in a configuration in which the first contact 16 of the switch 12 is in the open position with respect to the second contact 18.

Dans la position ouverte du premier contact 16, dans l'exemple de réalisation illustré, le dispositif de déplacement 26 de l'actionneur de commande 21 n'est pas actif et le ressort 28 rappel la partie mobile 24 dans la deuxième position.In the open position of the first contact 16, in the illustrated embodiment, the device 26 for moving the control actuator 21 is not active and the spring 28 returns the movable part 24 to the second position.

La partie mobile 24 active le deuxième capteur 48B, ici via l'élément de contact 50. La partie mobile 24 dans la deuxième position provoque une expansion du premier réservoir déformable 32, qui provoque, via le système de transmission hydraulique 22 une contraction du deuxième réservoir déformable 34, qui exerce sur le premier contact 16 une force déplaçant ou maintenant le premier contact 16 en position ouverte.The mobile part 24 activates the second sensor 48B, here via the contact element 50. The mobile part 24 in the second position causes an expansion of the first deformable reservoir 32, which causes, via the hydraulic transmission system 22, a contraction of the second deformable reservoir 34, which exerts on the first contact 16 a force moving or maintaining the first contact 16 in the open position.

Par ailleurs, dans la position ouverte, le deuxième réservoir déformable secondaire 58 est comprimé compte tenu de la position du premier contact 16 et le premier réservoir déformable secondaire 56 est en expansion. Le capteur auxiliaire 67 détecte l'expansion du premier réservoir déformable secondaire 56 et confirme ainsi la position ouverte du premier contact 16 de l'interrupteur 12.Furthermore, in the open position, the second secondary deformable reservoir 58 is compressed given the position of the first contact 16 and the first secondary deformable reservoir 56 is expanding. The auxiliary sensor 67 detects expansion of the first secondary deformable reservoir 56 and thus confirms the open position of the first contact 16 of the switch 12.

Au moins un des réservoirs déformables 32, 34, 56, 58 est par exemple un soufflet flexible (ou « bellow proof pear » en anglais). Un tel réservoir comprend par exemple des parois dont la section forme des cambrements. Dans un exemple de réalisation, et comme illustré sur les Figures 1 à 3, chacun des réservoirs flexibles 32, 34, 56, 58 est un soufflet flexible.At least one of the deformable reservoirs 32, 34, 56, 58 is for example a flexible bellows (or “bellow proof pear”). Such a tank comprises for example walls whose section forms cambers. In an exemplary embodiment, and as illustrated in the Figures 1 to 3 , each of the flexible reservoirs 32, 34, 56, 58 is a flexible bellows.

L'actionneur 21 déporté par rapport à l'interrupteur 12 permet de prévoir un interrupteur 12 plus compact, en s'affranchissant d'un dispositif d'isolation électrique qui doit être prévu entre l'actionneur et le premier contact dont le déplacement est commandé par l'actionneur lorsque l'actionneur est intégré à l'interrupteur 12.Actuator 21 offset with respect to switch 12 makes it possible to provide a more compact switch 12, by dispensing with an electrical isolation device which must be provided between the actuator and the first contact whose movement is controlled by the actuator when the actuator is integrated into the switch 12.

L'interrupteur 12 compact peut être implanté directement sur le transformateur 4 ce qui simplifie la liaison électrique entre l'interrupteur 12 et le transformateur 4, en particulier s'agissant d'un courant électrique à haute tension. Selon un exemple, l'interrupteur 12 est intégré dans le transformateur 4.The compact switch 12 can be installed directly on the transformer 4 which simplifies the electrical connection between the switch 12 and the transformer 4, in particular when it comes to a high voltage electric current. According to one example, switch 12 is integrated into transformer 4.

Le système de transmission hydraulique 22 reliant l'actionneur 21 à l'interrupteur 12 est simple de conception. Il permet de déporter l'actionneur 21 par rapport à l'interrupteur 21 sans contrainte de positionnement de l'un par rapport à l'autre, les conduites du système de transmission hydraulique 22 pouvant présenter la longueur souhaitée et cheminée suivant un chemin adéquat en fonction des positions de l'actionneur 21 et de l'interrupteur 12.The hydraulic transmission system 22 connecting the actuator 21 to the switch 12 is simple in design. It makes it possible to offset the actuator 21 with respect to the switch 21 without constraint of positioning one with respect to the other, the pipes of the hydraulic transmission system 22 being able to present the desired length and chimney following an adequate path in depending on the positions of actuator 21 and switch 12.

Le système de transmission de transmission hydraulique 22 est fiable, les risques de dysfonctionnement étant faibles.The hydraulic transmission transmission system 22 is reliable, the risk of malfunction being low.

Le dispositif de détection 52 permettant de détecter la position du premier contact 16 de l'interrupteur à partir d'un capteur de position déporté par rapport à l'interrupteur 12, par exemple dans l'actionneur 21, et relié au premier contact 16 par un système de transmission hydraulique secondaire indépendant de celui servant à commander le déplacement du premier contact 16, permet de s'assurer de la position effective du premier contact 16.The detection device 52 making it possible to detect the position of the first contact 16 of the switch from a position sensor remote from the switch 12, for example in the actuator 21, and connected to the first contact 16 by a secondary hydraulic transmission system independent of that used to control the movement of the first contact 16, makes it possible to ensure the effective position of the first contact 16.

Par exemple, le dispositif de détection 52 est isolé électriquement par rapport à l'interrupteur 12, notamment par rapport à la haute tension. Aussi, comme le circuit hydraulique 36 relie fluidiquement le volume intérieur 38 au volume intérieur 40 de sorte qu'une déformation du premier réservoir déformable 32 provoquée par l'actionneur de commande 21 entraîne une déformation correspondante du deuxième réservoir déformable 34 provoquant un déplacement correspondant du premier contact 16, le dispositif de détection 52 et l'interrupteur 12 sont directement reliés, ce qui permet d'obtenir un système simple et fiable.For example, detection device 52 is electrically isolated from switch 12, in particular from high voltage. Also, as the hydraulic circuit 36 fluidically connects the interior volume 38 to the interior volume 40 so that a deformation of the first deformable reservoir 32 caused by the control actuator 21 causes a corresponding deformation of the second deformable reservoir 34 causing a corresponding displacement of the first contact 16, the detection device 52 and switch 12 are directly connected, which makes it possible to obtain a simple and reliable system.

Claims (10)

  1. An electric current interruption system (8), comprising:
    - a switch (12) comprising a first contact (16) and a second contact (18), the first contact (16) being movable relative to the second contact (18) between a closed position allowing current flow and an open position interrupting current flow;
    - a control device (14) for the switch (12) configured to drive the switch (12) between the open and closed position,
    the control device (14) comprises a control actuator (21), and a hydraulic transmission system (22) arranged between the control actuator (21) and the first contact (16) so that the control actuator (21) is able to control the movement of the first contact (16) via the hydraulic transmission system (22), the hydraulic transmission system (22) comprising a first deformable reservoir (32) connected to the control actuator (21), a second deformable reservoir (34) connected to the first contact (16) of the switch (12) and a hydraulic circuit (36) fluidly connecting an interior volume (38) of the first deformable reservoir (32) to an interior volume (40) of the second deformable reservoir (34) so that a deformation of the first deformable reservoir (32) caused by the control actuator (21) causes a corresponding deformation of the second deformable reservoir (34) causing a corresponding displacement of the first contact (16), characterised in that the interruption system (8) further comprises a detection device (52) configured to detect the position of the first contact (16) relative to the second contact (18).
  2. The interruption system (8) according to claim 1, wherein the detection device (52) is configured to detect the position of the first contact (16) independently of a position of the first deformable reservoir (32).
  3. The interruption system according to claim 1 or 2, wherein the sensing device (52) comprises a secondary hydraulic transmission system (54) comprising a first secondary deformable reservoir (56), a second secondary deformable reservoir (58) and a secondary hydraulic circuit (60) fluidly connecting an interior volume (62) of the first secondary deformable reservoir (56) to an interior volume (64) of the second secondary deformable reservoir (58).
  4. The interruption system (8) according to claim 3, wherein the first secondary deformable reservoir (56) is configured to open or close an auxiliary sensor (67) due to movement of the first contact (16) of the switch (12).
  5. The interruption system (8) according to claim 4, wherein the second secondary deformable reservoir (58) is connected to the first contact (16) of the switch (12) so as to be deformed upon movement of the first contact (16) between the open and closed positions, the secondary hydraulic circuit (60) fluidly connecting the interior volume (64) of the second secondary deformable reservoir (58) to the interior volume (62) of the first secondary deformable reservoir (56), such that a deformation of the second secondary deformable reservoir (58) causes a corresponding deformation of the first secondary deformable reservoir (56) causing an opening/closing of the auxiliary sensor.
  6. The interruption system (8) according to any one of the preceding claims, wherein the switch (12) is a vacuum interrupter.
  7. An interruption system (8) according to any one of the preceding claims, wherein the hydraulic circuit (36) of the hydraulic transmission system (22) comprises at least one flexible hose (42) connecting the first deformable reservoir (32) to the second deformable reservoir (34).
  8. A shutdown system (8) according to any one of the preceding claims, wherein the first deformable reservoir (32) and the control actuator (21) are disposed in a separate housing (68) remote from the switch (12), the hydraulic circuit (36) extending between the housing (68) and the switch (12).
  9. An interruption system (8) according to any of the preceding claims, wherein the control device (14) comprises a device for measuring (46) the position of the control actuator (21) comprising at least one contact position sensor (48A, 48B) configured to measure the position of the control actuator (21).
  10. A railway vehicle (1) comprising an interruption system (8) according to any of the preceding claims.
EP21159966.7A 2020-03-03 2021-03-01 Electric current interruption system and railway vehicle comprising such an interruption system Active EP3876253B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2002117A FR3107986B1 (en) 2020-03-03 2020-03-03 System for interrupting an electric current and railway vehicle comprising such an interruption system

Publications (2)

Publication Number Publication Date
EP3876253A1 EP3876253A1 (en) 2021-09-08
EP3876253B1 true EP3876253B1 (en) 2022-10-19

Family

ID=70738700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21159966.7A Active EP3876253B1 (en) 2020-03-03 2021-03-01 Electric current interruption system and railway vehicle comprising such an interruption system

Country Status (4)

Country Link
EP (1) EP3876253B1 (en)
JP (1) JP2021141803A (en)
CN (1) CN113345760A (en)
FR (1) FR3107986B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1317246A (en) * 1961-12-07 1963-02-08 Electrical contact in liquid or gaseous medium
GB1162372A (en) * 1965-09-30 1969-08-27 English Electric Co Ltd Improvements in or relating to Vacuum switches
GB1182782A (en) * 1966-10-26 1970-03-04 Ass Elect Ind Improvemens in or relating to Vacuum Switches
DE3923660A1 (en) * 1989-07-18 1991-01-24 Leybold Ag ON / OFF SWITCH
CN110544593A (en) * 2019-09-29 2019-12-06 朱曼均 Gang switch device, power converter, power cord and equipment

Also Published As

Publication number Publication date
FR3107986A1 (en) 2021-09-10
EP3876253A1 (en) 2021-09-08
CN113345760A (en) 2021-09-03
FR3107986B1 (en) 2022-06-03
JP2021141803A (en) 2021-09-16

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