EP3926650B1 - Switching device, associated assembly and vehicle comprising such an assembly - Google Patents

Switching device, associated assembly and vehicle comprising such an assembly Download PDF

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Publication number
EP3926650B1
EP3926650B1 EP21179929.1A EP21179929A EP3926650B1 EP 3926650 B1 EP3926650 B1 EP 3926650B1 EP 21179929 A EP21179929 A EP 21179929A EP 3926650 B1 EP3926650 B1 EP 3926650B1
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EP
European Patent Office
Prior art keywords
housing
connector
switching device
transformer
vehicle
Prior art date
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Active
Application number
EP21179929.1A
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German (de)
French (fr)
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EP3926650A1 (en
Inventor
Nicolas Quentin
Antoine TAINE
Aurel Gavid
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 Technologies SAS
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Alstom Transport Technologies SAS
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Publication of EP3926650A1 publication Critical patent/EP3926650A1/en
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Publication of EP3926650B1 publication Critical patent/EP3926650B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings

Definitions

  • the present invention relates to a switching device intended to be connected to a transformer.
  • the present invention also relates to an assembly comprising such a switching device and a transformer, as well as a vehicle comprising such an assembly.
  • Vehicles in particular electric vehicles, frequently include transformers supplied for example by a pantograph and used to supply an electric supply current to the vehicle such as a supply current to an electric motor for propelling the vehicle.
  • transformers supplied for example by a pantograph and used to supply an electric supply current to the vehicle such as a supply current to an electric motor for propelling the vehicle.
  • These transformers are generally fixed under the chassis of the vehicle due to their large size and heavy weight.
  • Such transformers are generally associated with switching devices making it possible to control the electric power supply of at least one winding of the transformer.
  • the switching device is then arranged on the roof of the vehicle, close to the pantograph, and connected to the transformer by one or more cables.
  • Each cable is connected to a connector protruding from the transformer casing and fixed to this connector in such a way as to avoid any unhooking under the effect of the vibrations of the vehicle.
  • the transformer and the switching device must each be fixed separately to the chassis or to the body of the vehicle, then the corresponding cable or cables are fixed to these two pieces of equipment, which is relatively complex and long, in particular in the case of an underbody installation.
  • CH202076A , EP3300096A1 and EP3396687A1 disclose arrangements for a vehicle comprising a transformer and a switching device.
  • a switching device for a vehicle comprising a transformer, the vehicle being in particular a public transport vehicle, the transformer comprising at least a first winding, a first casing containing the first winding and a first primary connector electrically connected to the first winding through the first housing, the switching device comprising a second housing, an input terminal configured to receive an electric current, a first secondary connector and a switching element configured to switch between a first configuration in which the switching member electrically connects the input terminal and the first secondary connector and a second configuration in which the switching member electrically isolates the input terminal from the first secondary connector, the switching being accommodated in the second housing, the first secondary connector being electrically connected to the switching member through the second housing and being intended to be connected to the first primary connector.
  • the first secondary connector is configured to cooperate with the first primary connector to fix the switching device to the transformer, in particular to the first casing, in a connection position when the first primary connector is connected to the first secondary connector, the second casing being integral with the first housing when the switching device is in the connection position.
  • a vehicle is also proposed, in particular a public transport vehicle, comprising an assembly as previously described.
  • the assembly is fixed under a chassis of the vehicle.
  • a vehicle 10 is shown in the figure 1 schematically.
  • the vehicle 10 is, for example, a public transport vehicle, in particular a railway vehicle such as a train or a tramway.
  • the vehicle 10 is a road vehicle such as a bus or a trolleybus.
  • the vehicle 10 comprises a frame 15, a body 20 carried by the frame 15, a pantograph 25, a circuit breaker 30, a transformer 35 and a switching device 40.
  • the transformer 35 and the switching device 40 together form an assembly 42, shown in more detail in the picture 2 , this assembly 42 being for example fixed to the frame 15, in particular under the frame 15.
  • the transformer 35 and the switching device 40 are attached to each other to form the assembly 42.
  • the device switching device 40 is in a connection position in which the transformer 35 and the switching device 40 are electrically connected to each other.
  • the frame 15 supports the body 20, and is in particular arranged below the body 20 when the vehicle 10 is in operation.
  • the body 20 delimits an interior volume of the vehicle 10.
  • the pantograph 25 is, in a manner known per se, configured to come into contact with a catenary to supply the vehicle 10 with an electric current.
  • the pantograph 25 is configured to electrically supply the circuit breaker 30 with the electric current received from the catenary.
  • the circuit breaker 30 is configured to detect an electrical fault and to switch from a first configuration to a second configuration in the event of detection of the fault.
  • the circuit breaker 30 is configured to electrically supply the switching device 40 with the electric current received.
  • the circuit breaker 30 is configured to interrupt the electric current, and thus to electrically isolate the switching device 40 from the pantograph 25.
  • the transformer 35 comprises at least a first primary winding 45, a secondary winding 47, a first casing 50, a first primary connector 55 and a magnetic circuit 57.
  • the transformer 35 comprises a second primary winding 60 and a second primary connector 65 .
  • the first primary winding 45 is wound around the magnetic circuit 57.
  • the first primary winding 45 has a first terminal 70 and a second terminal 75, the first primary winding 45 being configured to conduct a current received from the switching device 40 via the terminal 70 to the second terminal 75.
  • the first terminal 70 is electrically connected to the first primary connector 55.
  • the second terminal 75 is, for example, grounded.
  • the secondary winding 47 is wound around the magnetic circuit 57 and has a third terminal 80 and a fourth terminal 85. It should be noted that the number of secondary windings 47 is likely to be greater than one.
  • Terminals 80 and 85 of secondary winding 47 are connected to an electrical device of the vehicle, for example to an electrical system supplying a plurality of devices, or even to an electric motor.
  • the transformer 35 is configured to, when a first voltage is imposed on the terminals 70, 75 of the first primary winding 45, generate a second voltage between the terminals 80, 85 of the secondary winding 47.
  • the second voltage is, for example, strictly lower than the first voltage.
  • the first casing 50 delimits a chamber accommodating the first primary winding 45, the core 57, the secondary winding 47 and the second primary winding 60.
  • First housing 50 is configured to electrically isolate first primary winding 45, circuit 57, secondary winding 47, and second primary winding 60 from outside of housing 50.
  • the first primary connector 55 passes through a portion of the first housing 50 to electrically connect the first terminal 70 to the switching device 35.
  • the first primary connector 55 forms a projection relative to the first housing 50.
  • the first primary connector 55 comprises, for example, a conductive element 90 and a sheath 95.
  • the conductive element 90 is made, for example, of a metallic material such as copper or aluminum.
  • the conductive element 90 passes through a portion of the first casing 50.
  • the conductive element 90 is, for example, a metal bar extending along a main direction.
  • the conductive element 90 is electrically connected to the first terminal.
  • Sheath 95 surrounds conductive element 90 in a plane perpendicular to the main direction of conductive element 90.
  • the sheath 95 is made of an electrically insulating material, for example epoxy.
  • Sheath 95 extends from first casing 50 in the main direction of conductive element 90.
  • the sheath 95 is, for example, open at its end opposite the first casing 50, so as to reveal one end of the conductive element 90, this end delimiting the conductive element 90 along the main direction thereof.
  • the second primary winding 60 is wound around the magnetic circuit 57.
  • the second primary winding 60 has a fifth terminal 100 and a sixth terminal 105, the second primary winding 60 being configured to conduct a current received from the switching device 40 via the terminal 100 to the terminal 105.
  • the transformer 35 is configured to, when a first voltage is imposed on the terminals 100, 105 of the second primary winding 60, generate a second voltage between the terminals 80, 85 of the secondary winding 47.
  • the fifth terminal 100 is electrically connected to the second primary connector 65.
  • the sixth terminal 105 is, for example, grounded.
  • the second primary connector 65 passes through a portion of the first housing 50 to electrically connect the fifth terminal 100 to the switching device 40.
  • the second primary connector 65 is, for example, identical to the first primary connector 55.
  • the switching device 40 is fixed to the transformer 35.
  • the switching device 40 is fixed to the first casing 50, in particular secured to the first casing 50.
  • the switching device 40 is configured to receive the electric current from the circuit breaker 30 and to supply the transformer 35 with the electric current.
  • the switching device 40 comprises a second housing 110, an input terminal 115, a switching mechanism 120, an actuator 125, a first secondary connector 130 and a second secondary connector 135.
  • the second box 110 is electrically insulating.
  • the second housing 110 delimits a chamber accommodating the switching mechanism 120 and, optionally, the actuator 125, and is configured to electrically isolate the switching mechanism 120 from the outside of the second housing 110.
  • the input terminal 115 is configured to be electrically connected to a device, in particular to the circuit breaker 30, configured to electrically supply the input terminal 115 with an electric current.
  • Input terminal 115 passes through a portion of the housing to electrically connect said device to switching mechanism 120.
  • Switch mechanism 120 is configured to switch between a first configuration and a second configuration.
  • switching mechanism 120 electrically connects input terminal 115 to first secondary connector 130.
  • switching mechanism 120 electrically isolates input terminal 115 from first secondary connector 130.
  • the switching mechanism 120 comprises for example, in a manner known per se, two electrically conductive terminals 140 and 145 and two contacts 150 and 155.
  • Terminal 140 is electrically connected to first secondary connector 130.
  • Terminal 145 is electrically connected to second secondary connector 135 and input terminal 115.
  • Contact 150 is electrically connected to terminal 140.
  • the contact 150 is movable between a first position and a second position which respectively define the first and the second configuration.
  • contact 150 When contact 150 is in the first position, contact 150 is electrically connected to contact 155. When contact 150 is in the second position, contact 150 is disconnected from contact 155.
  • Contact 155 is electrically connected to terminal 145.
  • the actuator 125 is, in a manner known per se, configured to move the contact 150 between its two positions, for example on a command received from a device external to the switching device 40.
  • the first secondary connector 130 is electrically connected to the first primary connector 55.
  • First secondary connector 130 is configured to cooperate with first primary connector 55 to attach switching device 40 to transformer 35.
  • the first secondary connector 130 is configured to cooperate with the first primary connector 55 to secure the second housing 110 to the first housing 50.
  • the first secondary connector 130 comprises, for example, an electrically conductive element 160 crossing a part of the housing and electrically connected to the terminal 140, and a protection element 165.
  • Conductive element 160 is configured to be electrically connected to conductive element 90 of first primary connector 55 when switching device 40 is attached to transformer 35.
  • the conductive element 160 is, for example, configured to be fixed to the corresponding conductive element 90 by a screw 170 passing through these two elements 90, 160 together.
  • each of the conductive elements 90, 160 comprises a cavity for receiving the screw 170.
  • the conductive element 160 is, for example, configured to be crossed by the screw 170, this screw 170 extending for example in the main direction of the corresponding element 90.
  • Shield element 165 is configured to electrically isolate conductive element 160 from the exterior of assembly 42 when switching device 40 is attached to transformer 35.
  • shield element 165 surrounds the element conductor 160 in a plane perpendicular to the main direction of the first primary connector 55 when the connectors 55 and 130 are connected to each other.
  • the protection element 165 is, for example, integral with the second casing 110.
  • the protection element 165 is formed by a portion of the second casing 165, such as a portion delimiting an orifice configured to accommodate the first primary connector 55.
  • the protective element 165 is a portion of the second casing 110 forming a projection from the rest of the second casing 110.
  • the protection element 165 is, for example, configured to accommodate the sleeve 95 of the first primary connector 55.
  • the protection element 165 is complementary to the sleeve 95 and configured to grip the sleeve 95 in a plane perpendicular to the main direction of the corresponding element 90, so as to prevent relative movement between the two boxes 110.
  • Second secondary connector 135 is configured to be connected to second primary connector 65 when switching device 40 is attached to transformer 35.
  • the second secondary connector 135 is configured to cooperate with the second primary connector 65 to fix the switching device 40 to the transformer 35, in particular to fix the second casing 110 to the first casing 50.
  • the second secondary connector 135 is for example identical to the first secondary connector 130.
  • the switching device 40 further comprises one or more fixing elements configured to cooperate with the transformer 35 to fix the switching device 40 in its connection position to the transformer 35.
  • Each fastening element is, for example, an element in relief with respect to the second housing 110 configured to secure the second housing 110 to the first housing 50.
  • Each element in relief is, in particular, configured to cooperate with a complementary element of the first housing 50
  • each element in relief is a protrusion configured to be screwed to the complementary element, or to be inserted into the complementary element in order to maintain the housings 110 and 50 in position with respect to each other. .
  • the use of the secondary connectors 130 and 135 to fix the transformer 40 and the switching device 35 to each other makes it possible to simplify the structure of the vehicle, in particular by avoiding the need to provide additional fixing mechanisms. Indeed, even if the transformer 35 and the switching device 40 are distant from each other, the electrical conductors connecting them must be fixed to these devices, while the transformer 35 and the switching device 40 must each be attached to the vehicle. Thanks to the invention, the means for fixing the switching device 40 to the vehicle are no longer necessary, since their role is played by the connectors 130 and 135.
  • the secondary connectors 130 and 135 can be used with already existing transformers 35, which currently allow the attachment of the conductors to their connectors 55, 65.
  • the use of the secondary connectors 130 and 135 to fix the transformer 35 and the switching device 40 to each other makes it possible to fix these two devices together under the chassis of the vehicle 10, and thus to free up place on the roof of the vehicle 10, where the switching device 40 would usually be placed.
  • switching device 40 comprising a single secondary connector 130
  • a switching device 40 comprising two secondary connectors 130, 135, one of which is permanently connected to the input terminal 115, makes it possible to control the electrical supply of the two primary windings 45, 60 of a transformer comprising two such windings, since the first primary winding 45 is then supplied only when the switching device 40 is in the first configuration.
  • a screw makes it possible to secure the transformer 35 and the switching device 40 effectively, in particular when the primary connector 55, 65 is housed in the corresponding secondary connector 130, 135.
  • the switching device 40 further comprises a detection member configured to detect an electrical fault, in particular an electrical fault of a current flowing between the input terminal 115 and the first secondary connector 130.
  • the electrical fault is, for example, an overcurrent, an overvoltage, a short circuit, or even the appearance of an electric arc, although other types of electrical faults can be envisaged.
  • the detection member is configured to command a switching of the switching member 120 from the first configuration to the second configuration in the event of detection of such a fault, for example by sending a switching command to actuator 125.
  • the detection member is likely to be remote from the rest of the switching device 40, for example if the detection member is contained in a box separate from the box 110.
  • the detection member is, in particular, configured to measure values of a parameter of said electric current, and to detect the fault as a function of the measured values.
  • the switching device 40 comprises, for example, a single secondary connector 130, and in particular does not comprise the second secondary connector 135.
  • This embodiment is particularly useful in the role of circuit breaker protecting a transformer 35 at a single primary winding 45.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Description

La présente invention concerne un dispositif de commutation destiné à être connecté à un transformateur. La présente invention concerne également un ensemble comportant un tel dispositif de commutation et un transformateur, ainsi qu'un véhicule comportant un tel ensemble.The present invention relates to a switching device intended to be connected to a transformer. The present invention also relates to an assembly comprising such a switching device and a transformer, as well as a vehicle comprising such an assembly.

Des véhicules, notamment des véhicules électriques, comportent fréquemment des transformateurs alimentés par exemple par un pantographe et utilisés pour fournir un courant d'alimentation électrique du véhicule tel qu'un courant d'alimentation d'un moteur électrique de propulsion du véhicule. Ces transformateurs sont en général fixés sous le châssis du véhicule du fait de leur grande taille et de leur poids important.Vehicles, in particular electric vehicles, frequently include transformers supplied for example by a pantograph and used to supply an electric supply current to the vehicle such as a supply current to an electric motor for propelling the vehicle. These transformers are generally fixed under the chassis of the vehicle due to their large size and heavy weight.

De tels transformateurs sont en général associés à des dispositifs de commutation permettant de contrôler l'alimentation électrique d'au moins un enroulement du transformateur. Le dispositif de commutation est alors disposé sur le toit du véhicule, à proximité du pantographe, et relié au transformateur par un ou plusieurs câbles. Chaque câble est relié à un connecteur dépassant du boîtier du transformateur et fixé à ce connecteur de manière à éviter un décrochement sous l'effet des vibrations du véhicule.Such transformers are generally associated with switching devices making it possible to control the electric power supply of at least one winding of the transformer. The switching device is then arranged on the roof of the vehicle, close to the pantograph, and connected to the transformer by one or more cables. Each cable is connected to a connector protruding from the transformer casing and fixed to this connector in such a way as to avoid any unhooking under the effect of the vibrations of the vehicle.

Toutefois, de tels arrangements ne sont pas optimisés. En particulier, le transformateur et le dispositif de commutation doivent chacun être fixés séparément au châssis ou à la carrosserie du véhicule, puis le ou les câbles correspondants sont fixés à ces deux équipements, ce qui est relativement complexe et long, notamment dans le cas d'une installation sous caisse. En outre, il est nécessaire de prévoir beaucoup de place aussi bien sur le toit du véhicule que sous le châssis pour y placer ces équipements.However, such arrangements are not optimized. In particular, the transformer and the switching device must each be fixed separately to the chassis or to the body of the vehicle, then the corresponding cable or cables are fixed to these two pieces of equipment, which is relatively complex and long, in particular in the case of an underbody installation. In addition, it is necessary to provide plenty of space both on the roof of the vehicle and under the chassis to place this equipment.

CH202076A , EP3300096A1 et EP3396687A1 divulguent des arrangements pour un véhicule comportant un transformateur et un dispositif de commutation. CH202076A , EP3300096A1 and EP3396687A1 disclose arrangements for a vehicle comprising a transformer and a switching device.

Il existe donc un besoin pour un dispositif de commutation, destiné à être connecté à un transformateur embarqué dans un véhicule, qui permette de réduire la complexité de montage et de connexion du véhicule et qui permette de dégager de l'espace dans le véhicule.There is therefore a need for a switching device, intended to be connected to a transformer on board a vehicle, which makes it possible to reduce the complexity of assembly and connection of the vehicle and which makes it possible to free up space in the vehicle.

A cet effet, il est proposé un dispositif de commutation pour un véhicule comportant un transformateur, le véhicule étant notamment un véhicule de transport en commun, le transformateur comportant au moins un premier enroulement, un premier boîtier contenant le premier enroulement et un premier connecteur primaire électriquement connecté au premier enroulement à travers le premier boîtier, le dispositif de commutation comportant un deuxième boîtier, une borne d'entrée configurée pour recevoir un courant électrique, un premier connecteur secondaire et un organe de commutation configuré pour commuter entre une première configuration dans laquelle l'organe de commutation relie électriquement la borne d'entrée et le premier connecteur secondaire et une deuxième configuration dans laquelle l'organe de commutation isole électriquement la borne d'entrée du premier connecteur secondaire, l'organe de commutation étant accueilli dans le deuxième boîtier, le premier connecteur secondaire étant électriquement connecté à l'organe de commutation à travers le deuxième boîtier et étant destiné à être connecté au premier connecteur primaire.To this end, a switching device is proposed for a vehicle comprising a transformer, the vehicle being in particular a public transport vehicle, the transformer comprising at least a first winding, a first casing containing the first winding and a first primary connector electrically connected to the first winding through the first housing, the switching device comprising a second housing, an input terminal configured to receive an electric current, a first secondary connector and a switching element configured to switch between a first configuration in which the switching member electrically connects the input terminal and the first secondary connector and a second configuration in which the switching member electrically isolates the input terminal from the first secondary connector, the switching being accommodated in the second housing, the first secondary connector being electrically connected to the switching member through the second housing and being intended to be connected to the first primary connector.

Le premier connecteur secondaire est configuré pour coopérer avec le premier connecteur primaire pour fixer le dispositif de commutation au transformateur, notamment au premier boîtier, dans une position de connexion lorsque le premier connecteur primaire est connecté au premier connecteur secondaire, le deuxième boîtier étant solidaire du premier boîtier lorsque le dispositif de commutation est dans la position de connexion.The first secondary connector is configured to cooperate with the first primary connector to fix the switching device to the transformer, in particular to the first casing, in a connection position when the first primary connector is connected to the first secondary connector, the second casing being integral with the first housing when the switching device is in the connection position.

Selon des modes de réalisation optionnels, le dispositif de commutation présente une ou plusieurs des caractéristiques suivantes, prise(s) isolément ou selon toutes les combinaisons techniquement possibles :

  • Le dispositif comporte en outre un organe de détection configuré pour mesurer des valeurs d'un courant électrique circulant entre la borne d'entrée et le premier connecteur secondaire et pour commander une commutation de l'organe de commutation de la première configuration à la deuxième configuration en fonction des valeurs mesurées.
  • le dispositif de commutation est destiné à être connecté à un transformateur comportant en outre un deuxième enroulement et un deuxième connecteur primaire électriquement connecté au premier enroulement à travers le premier boîtier, le dispositif de commutation comportant en outre un deuxième connecteur secondaire électriquement connecté à la borne d'entrée et destiné à être connecté au deuxième connecteur primaire, le deuxième connecteur secondaire étant configuré pour coopérer avec le deuxième connecteur primaire pour fixer le dispositif de commutation au transformateur, notamment au premier boîtier, dans la position de connexion lorsque le deuxième connecteur primaire est connecté au deuxième connecteur secondaire.
  • chaque connecteur primaire comporte une première ouverture de réception d'une vis, chaque connecteur secondaire comportant une deuxième ouverture traversant le connecteur secondaire et étant configuré pour être fixé au connecteur primaire correspondant par la vis lorsque la vis est accueillie conjointement dans les première et deuxième ouvertures.
According to optional embodiments, the switching device has one or more of the following characteristics, taken separately or according to all the technically possible combinations:
  • The device further comprises a detection member configured to measure values of an electric current flowing between the input terminal and the first secondary connector and to control switching of the switching member from the first configuration to the second configuration depending on the measured values.
  • the switching device is intended to be connected to a transformer further comprising a second winding and a second primary connector electrically connected to the first winding through the first casing, the switching device further comprising a second secondary connector electrically connected to the terminal input and intended to be connected to the second primary connector, the second secondary connector being configured to cooperate with the second primary connector to fix the switching device to the transformer, in particular to the first casing, in the connection position when the second primary connector is connected to the second secondary connector.
  • each primary connector has a first opening for receiving a screw, each secondary connector having a second opening passing through the secondary connector and being configured to be secured to the corresponding primary connector by the screw when the screw is received together in the first and second openings .

Il est également proposé un ensemble comportant un dispositif de commutation selon l'une quelconque des revendications précédentes et un transformateur comportant au moins un premier enroulement, un premier boîtier contenant le premier enroulement et un premier connecteur primaire électriquement connecté au premier enroulement à travers le premier boîtier. Selon des modes de réalisation optionnels, l'ensemble présente une ou plusieurs des caractéristiques suivantes, prise(s) isolément ou selon toutes les combinaisons techniquement possibles :

  • le deuxième boîtier comporte, en outre, au moins un élément de fixation configuré pour être fixé au premier boîtier pour solidariser le deuxième boîtier au premier boîtier.
  • le ou chaque élément de fixation est une protrusion s'étendant à partir du deuxième boîtier et configurée pour coopérer avec un élément complémentaire du premier boîtier pour solidariser le premier boîtier au deuxième boîtier.
  • le premier connecteur primaire forme une saillie par rapport au premier boîtier, le premier connecteur primaire étant accueilli dans le premier connecteur secondaire lorsque le dispositif de commutation est fixé au transformateur.
There is also proposed an assembly comprising a switching device according to any one of the preceding claims and a transformer comprising at least a first winding, a first casing containing the first winding and a first primary connector electrically connected to the first winding through the first housing. According to optional embodiments, the assembly has one or more of the following characteristics, taken separately or according to all the technically possible combinations:
  • the second casing further comprises at least one fixing element configured to be fixed to the first casing to secure the second casing to the first casing.
  • the or each fixing element is a protrusion extending from the second casing and configured to cooperate with a complementary element of the first casing to secure the first casing to the second casing.
  • the first primary connector protrudes from the first housing, the first primary connector being accommodated in the first secondary connector when the switching device is attached to the transformer.

Il est également proposé un véhicule, notamment un véhicule de transport en commun, comportant un ensemble tel que précédemment décrit.A vehicle is also proposed, in particular a public transport vehicle, comprising an assembly as previously described.

Selon un mode de réalisation optionnel, l'ensemble est fixé sous un châssis du véhicule.According to an optional embodiment, the assembly is fixed under a chassis of the vehicle.

Des caractéristiques et avantages de l'invention apparaîtront 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 représentation schématique d'un véhicule comportant un dispositif de commutation selon l'invention,
  • [Fig 2] la figure 2 est une représentation schématique en coupe d'un exemple de dispositif de commutation de la figure 1, connecté à un transformateur, et
  • [Fig 3] la figure 3 est une vue en perspective partielle d'un autre exemple de dispositif de commutation de la figure 1.
Characteristics and advantages of the invention will appear 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 representation of a vehicle comprising a switching device according to the invention,
  • [ Fig 2 ] the figure 2 is a cross-sectional schematic representation of an example of a switching device of the figure 1 , connected to a transformer, and
  • [ Fig.3 ] the picture 3 is a partial perspective view of another example of a switching device from the figure 1 .

Un véhicule 10 est représenté sur la figure 1 de manière schématique.A vehicle 10 is shown in the figure 1 schematically.

Le véhicule 10 est, par exemple, un véhicule de transport en commun, notamment un véhicule ferroviaire tel qu'un train ou un tramway. En variante, le véhicule 10 est un véhicule routier tel qu'un bus ou un trolleybus.The vehicle 10 is, for example, a public transport vehicle, in particular a railway vehicle such as a train or a tramway. Alternatively, the vehicle 10 is a road vehicle such as a bus or a trolleybus.

Le véhicule 10 comporte un châssis 15, une carrosserie 20 portée par le châssis 15, un pantographe 25, un disjoncteur 30, un transformateur 35 et un dispositif de commutation 40.The vehicle 10 comprises a frame 15, a body 20 carried by the frame 15, a pantograph 25, a circuit breaker 30, a transformer 35 and a switching device 40.

Le transformateur 35 et le dispositif de commutation 40, ensemble, forment un ensemble 42, représenté plus en détails sur la figure 2, cet ensemble 42 étant par exemple fixé à au châssis 15, notamment sous le châssis 15.The transformer 35 and the switching device 40 together form an assembly 42, shown in more detail in the picture 2 , this assembly 42 being for example fixed to the frame 15, in particular under the frame 15.

En particulier, le transformateur 35 et le dispositif de commutation 40 sont fixés l'un à l'autre pour former l'ensemble 42. Lorsque le transformateur 35 et le dispositif de commutation 40 sont fixés l'un à l'autre, le dispositif de commutation 40 est dans une position de connexion dans laquelle le transformateur 35 et le dispositif de commutation 40 sont électriquement connectés l'un à l'autre.In particular, the transformer 35 and the switching device 40 are attached to each other to form the assembly 42. When the transformer 35 and the switching device 40 are attached to each other, the device switching device 40 is in a connection position in which the transformer 35 and the switching device 40 are electrically connected to each other.

Le châssis 15 supporte la carrosserie 20, et est notamment disposé en-dessous de la carrosserie 20 lorsque le véhicule 10 est en fonctionnement.The frame 15 supports the body 20, and is in particular arranged below the body 20 when the vehicle 10 is in operation.

La carrosserie 20 délimite un volume intérieur du véhicule 10.The body 20 delimits an interior volume of the vehicle 10.

Le pantographe 25 est, de manière connue en soi, configuré pour entre mis en contact avec une caténaire pour alimenter le véhicule 10 avec un courant électrique.The pantograph 25 is, in a manner known per se, configured to come into contact with a catenary to supply the vehicle 10 with an electric current.

Le pantographe 25 est configuré pour alimenter électriquement le disjoncteur 30 avec le courant électrique reçu de la caténaire.The pantograph 25 is configured to electrically supply the circuit breaker 30 with the electric current received from the catenary.

Le disjoncteur 30 est configuré pour détecter un défaut électrique et pour commuter d'une première configuration à une deuxième configuration en cas de détection du défaut.The circuit breaker 30 is configured to detect an electrical fault and to switch from a first configuration to a second configuration in the event of detection of the fault.

Dans la première configuration, le disjoncteur 30 est configuré pour alimenter électriquement le dispositif de commutation 40 avec le courant électrique reçu. Dans la deuxième configuration, le disjoncteur 30 est configuré pour interrompre le courant électrique, et ainsi pour isoler électriquement le dispositif de commutation 40 du pantographe 25.In the first configuration, the circuit breaker 30 is configured to electrically supply the switching device 40 with the electric current received. In the second configuration, the circuit breaker 30 is configured to interrupt the electric current, and thus to electrically isolate the switching device 40 from the pantograph 25.

Le transformateur 35 comporte au moins un premier enroulement primaire 45, un enroulement secondaire 47, un premier boîtier 50, un premier connecteur primaire 55 et un circuit magnétique 57. Optionnellement, le transformateur 35 comporte un deuxième enroulement primaire 60 et un deuxième connecteur primaire 65.The transformer 35 comprises at least a first primary winding 45, a secondary winding 47, a first casing 50, a first primary connector 55 and a magnetic circuit 57. Optionally, the transformer 35 comprises a second primary winding 60 and a second primary connector 65 .

Le premier enroulement primaire 45 est enroulé autour du circuit magnétique 57.The first primary winding 45 is wound around the magnetic circuit 57.

Le premier enroulement primaire 45 présente une première borne 70 et une deuxième borne 75, le premier enroulement primaire 45 étant configuré pour conduire un courant reçu du dispositif de commutation 40 via la borne 70 jusqu'à la deuxième borne 75.The first primary winding 45 has a first terminal 70 and a second terminal 75, the first primary winding 45 being configured to conduct a current received from the switching device 40 via the terminal 70 to the second terminal 75.

La première borne 70 est électriquement connectée au premier connecteur primaire 55.The first terminal 70 is electrically connected to the first primary connector 55.

La deuxième borne 75 est, par exemple, mise à la terre.The second terminal 75 is, for example, grounded.

L'enroulement secondaire 47 est enroulé autour du circuit magnétique 57 et présente une troisième borne 80 et une quatrième borne 85. Il est à noter que le nombre d'enroulements secondaires 47 est susceptible d'être supérieur à un.The secondary winding 47 is wound around the magnetic circuit 57 and has a third terminal 80 and a fourth terminal 85. It should be noted that the number of secondary windings 47 is likely to be greater than one.

Les bornes 80 et 85 de l'enroulement secondaire 47 sont connectées à un dispositif électrique du véhicule, par exemple à un système électrique alimentant une pluralité d'appareils, ou encore à un moteur électrique.Terminals 80 and 85 of secondary winding 47 are connected to an electrical device of the vehicle, for example to an electrical system supplying a plurality of devices, or even to an electric motor.

De manière connue en soi, le transformateur 35 est configuré pour, lorsqu'une première tension est imposée aux bornes 70, 75 du premier enroulement primaire 45, générer une deuxième tension entre les bornes 80, 85 de l'enroulement secondaire 47.In a manner known per se, the transformer 35 is configured to, when a first voltage is imposed on the terminals 70, 75 of the first primary winding 45, generate a second voltage between the terminals 80, 85 of the secondary winding 47.

La deuxième tension est, par exemple, strictement inférieure à la première tension.The second voltage is, for example, strictly lower than the first voltage.

Le premier boîtier 50 délimite une chambre accueillant le premier enroulement primaire 45, le noyau 57, l'enroulement secondaire 47 et le deuxième enroulement primaire 60.The first casing 50 delimits a chamber accommodating the first primary winding 45, the core 57, the secondary winding 47 and the second primary winding 60.

Le premier boîtier 50 est configuré pour isoler électriquement le premier enroulement primaire 45, le circuit 57, l'enroulement secondaire 47 et le deuxième enroulement primaire 60 de l'extérieur du boîtier 50.First housing 50 is configured to electrically isolate first primary winding 45, circuit 57, secondary winding 47, and second primary winding 60 from outside of housing 50.

Le premier connecteur primaire 55 traverse une portion du premier boîtier 50 pour connecter électriquement la première borne 70 au dispositif de commutation 35.The first primary connector 55 passes through a portion of the first housing 50 to electrically connect the first terminal 70 to the switching device 35.

Le premier connecteur primaire 55 forme une saillie par rapport au premier boîtier 50.The first primary connector 55 forms a projection relative to the first housing 50.

Le premier connecteur primaire 55 comporte, par exemple, un élément conducteur 90 et un fourreau 95.The first primary connector 55 comprises, for example, a conductive element 90 and a sheath 95.

L'élément conducteur 90 est réalisé, par exemple, en un matériau métallique tel que le cuivre ou l'aluminium.The conductive element 90 is made, for example, of a metallic material such as copper or aluminum.

L'élément conducteur 90 traverse une portion du premier boîtier 50. L'élément conducteur 90 est, par exemple, un barreau métallique s'étendant selon une direction principale.The conductive element 90 passes through a portion of the first casing 50. The conductive element 90 is, for example, a metal bar extending along a main direction.

L'élément conducteur 90 est électriquement connecté à la première borne.The conductive element 90 is electrically connected to the first terminal.

Le fourreau 95 entoure l'élément conducteur 90 dans un plan perpendiculaire à la direction principale de l'élément conducteur 90.Sheath 95 surrounds conductive element 90 in a plane perpendicular to the main direction of conductive element 90.

Le fourreau 95 est réalisé en un matériau électriquement isolant, par exemple l'epoxy.The sheath 95 is made of an electrically insulating material, for example epoxy.

Le fourreau 95 s'étend à partir du premier boîtier 50 selon la direction principale de l'élément conducteur 90.Sheath 95 extends from first casing 50 in the main direction of conductive element 90.

Le fourreau 95 est, par exemple, ouvert à son extrémité opposée au premier boîtier 50, de manière à laisser apparaître une extrémité de l'élément conducteur 90, cette extrémité délimitant l'élément conducteur 90 selon la direction principale de celui-ci.The sheath 95 is, for example, open at its end opposite the first casing 50, so as to reveal one end of the conductive element 90, this end delimiting the conductive element 90 along the main direction thereof.

Le deuxième enroulement primaire 60 est enroulé autour du circuit magnétique 57.The second primary winding 60 is wound around the magnetic circuit 57.

Le deuxième enroulement primaire 60 présente une cinquième borne 100 et une sixième borne 105, le deuxième enroulement primaire 60 étant configuré pour conduire un courant reçu du dispositif de commutation 40 via la borne 100 jusqu'à la borne 105.The second primary winding 60 has a fifth terminal 100 and a sixth terminal 105, the second primary winding 60 being configured to conduct a current received from the switching device 40 via the terminal 100 to the terminal 105.

De manière connue en soi, le transformateur 35 est configuré pour, lorsqu'une première tension est imposée aux bornes 100, 105 du deuxième enroulement primaire 60, générer une deuxième tension entre les bornes 80, 85 de l'enroulement secondaire 47.In a manner known per se, the transformer 35 is configured to, when a first voltage is imposed on the terminals 100, 105 of the second primary winding 60, generate a second voltage between the terminals 80, 85 of the secondary winding 47.

La cinquième borne 100 est électriquement connectée au deuxième connecteur primaire 65.The fifth terminal 100 is electrically connected to the second primary connector 65.

La sixième borne 105 est, par exemple, mise à la terre.The sixth terminal 105 is, for example, grounded.

Le deuxième connecteur primaire 65 traverse une portion du premier boîtier 50 pour connecter électriquement la cinquième borne 100 au dispositif de commutation 40.The second primary connector 65 passes through a portion of the first housing 50 to electrically connect the fifth terminal 100 to the switching device 40.

Le deuxième connecteur primaire 65 est, par exemple, identique au premier connecteur primaire 55.The second primary connector 65 is, for example, identical to the first primary connector 55.

Le dispositif de commutation 40 est fixé au transformateur 35. En particulier, le dispositif de commutation 40 est fixé au premier boîtier 50, notamment solidaire du premier boîtier 50.The switching device 40 is fixed to the transformer 35. In particular, the switching device 40 is fixed to the first casing 50, in particular secured to the first casing 50.

Il est entendu par « solidaire » qu'un déplacement de l'un des éléments solidarisés implique un déplacement identique de l'autre élément.It is understood by “united” that a movement of one of the joined elements implies an identical movement of the other element.

Le dispositif de commutation 40 est configuré pour recevoir le courant électrique du disjoncteur 30 et pour alimenter le transformateur 35 avec le courant électrique.The switching device 40 is configured to receive the electric current from the circuit breaker 30 and to supply the transformer 35 with the electric current.

En particulier, le dispositif de commutation 40 comporte un deuxième boîtier 110, une borne d'entrée 115, un mécanisme de commutation 120, un actionneur 125, un premier connecteur secondaire 130 et un deuxième connecteur secondaire 135.In particular, the switching device 40 comprises a second housing 110, an input terminal 115, a switching mechanism 120, an actuator 125, a first secondary connector 130 and a second secondary connector 135.

Le deuxième boîtier 110 est électriquement isolant.The second box 110 is electrically insulating.

Le deuxième boîtier 110 délimite une chambre accueillant le mécanisme de commutation 120 et, optionnellement, l'actionneur 125, et est configuré pour isoler électriquement le mécanisme de commutation 120 de l'extérieur du deuxième boîtier 110.The second housing 110 delimits a chamber accommodating the switching mechanism 120 and, optionally, the actuator 125, and is configured to electrically isolate the switching mechanism 120 from the outside of the second housing 110.

La borne d'entrée 115 est configurée pour être électriquement connectée à un dispositif, notamment au disjoncteur 30, configuré pour alimenter électriquement la borne d'entrée 115 avec un courant électrique.The input terminal 115 is configured to be electrically connected to a device, in particular to the circuit breaker 30, configured to electrically supply the input terminal 115 with an electric current.

La borne d'entrée 115 traverse une partie du boîtier pour connecter électriquement ledit dispositif au mécanisme de commutation 120.Input terminal 115 passes through a portion of the housing to electrically connect said device to switching mechanism 120.

Le mécanisme de commutation 120 est configuré pour commuter entre une première configuration et une deuxième configuration.Switch mechanism 120 is configured to switch between a first configuration and a second configuration.

Dans la première configuration, le mécanisme de commutation 120 connecte électriquement la borne d'entrée 115 au premier connecteur secondaire 130.In the first configuration, switching mechanism 120 electrically connects input terminal 115 to first secondary connector 130.

Dans la deuxième configuration, le mécanisme de commutation 120 isole électriquement la borne d'entrée 115 du premier connecteur secondaire 130.In the second configuration, switching mechanism 120 electrically isolates input terminal 115 from first secondary connector 130.

Le mécanisme de commutation 120 comporte par exemple, de manière connue en soi, deux bornes 140 et 145 électriquement conductrices et deux contacts 150 et 155.The switching mechanism 120 comprises for example, in a manner known per se, two electrically conductive terminals 140 and 145 and two contacts 150 and 155.

La borne 140 est électriquement connectée au premier connecteur secondaire 130.Terminal 140 is electrically connected to first secondary connector 130.

La borne 145 est électriquement connectée au deuxième connecteur secondaire 135 et à la borne d'entrée 115.Terminal 145 is electrically connected to second secondary connector 135 and input terminal 115.

Le contact 150 est électriquement connecté à la borne 140.Contact 150 is electrically connected to terminal 140.

Le contact 150 est mobile entre une première position et une deuxième position qui définissent respectivement la première et la deuxième configuration.The contact 150 is movable between a first position and a second position which respectively define the first and the second configuration.

Lorsque le contact 150 est dans la première position, le contact 150 est électriquement connecté au contact 155. Lorsque le contact 150 est dans la deuxième position, le contact 150 est déconnecté du contact 155.When contact 150 is in the first position, contact 150 is electrically connected to contact 155. When contact 150 is in the second position, contact 150 is disconnected from contact 155.

Le contact 155 est électriquement connecté à la borne 145.Contact 155 is electrically connected to terminal 145.

L'actionneur 125 est, de manière connue en soi, configuré pour déplacer le contact 150 entre ses deux positions, par exemple sur une commande reçue d'un appareil externe au dispositif de commutation 40.The actuator 125 is, in a manner known per se, configured to move the contact 150 between its two positions, for example on a command received from a device external to the switching device 40.

Le premier connecteur secondaire 130 est électriquement connecté au premier connecteur primaire 55.The first secondary connector 130 is electrically connected to the first primary connector 55.

Le premier connecteur secondaire 130 est configuré pour coopérer avec le premier connecteur primaire 55 pour fixer le dispositif de commutation 40 au transformateur 35.First secondary connector 130 is configured to cooperate with first primary connector 55 to attach switching device 40 to transformer 35.

En particulier, comme il apparaîtra ci-dessous, le premier connecteur secondaire 130 est configuré pour coopérer avec le premier connecteur primaire 55 pour fixer le deuxième boîtier 110 au premier boîtier 50.In particular, as will appear below, the first secondary connector 130 is configured to cooperate with the first primary connector 55 to secure the second housing 110 to the first housing 50.

Le premier connecteur secondaire 130 comporte, par exemple, un élément électriquement conducteur 160 traversant une partie du boîtier et électriquement connecté à la borne 140, et un élément de protection 165.The first secondary connector 130 comprises, for example, an electrically conductive element 160 crossing a part of the housing and electrically connected to the terminal 140, and a protection element 165.

L'élément conducteur 160 est configuré pour être électriquement connecté à l'élément conducteur 90 du premier connecteur primaire 55 lorsque le dispositif de commutation 40 est fixé au transformateur 35.Conductive element 160 is configured to be electrically connected to conductive element 90 of first primary connector 55 when switching device 40 is attached to transformer 35.

Comme représenté sur la figure 3, l'élément conducteur 160 est, par exemple, configuré pour être fixé à l'élément conducteur 90 correspondant par une vis 170 traversant ces deux éléments 90, 160 conjointement. Dans ce cas, chacun des éléments conducteurs 90, 160 comporte une cavité de réception de la vis 170.As shown on the picture 3 , the conductive element 160 is, for example, configured to be fixed to the corresponding conductive element 90 by a screw 170 passing through these two elements 90, 160 together. In this case, each of the conductive elements 90, 160 comprises a cavity for receiving the screw 170.

L'élément conducteur 160 est, par exemple, configuré pour être traversé par la vis 170, cette vis 170 s'étendant par exemple selon la direction principale de l'élément 90 correspondant.The conductive element 160 is, for example, configured to be crossed by the screw 170, this screw 170 extending for example in the main direction of the corresponding element 90.

L'élément de protection 165 est configuré pour isoler électriquement l'élément conducteur 160 de l'extérieur de l'ensemble 42 lorsque le dispositif de commutation 40 est fixé au transformateur 35. En particulier, l'élément de protection 165 entoure l'élément conducteur 160 dans un plan perpendiculaire à la direction principale du premier connecteur primaire 55 lorsque les connecteurs 55 et 130 sont connectés l'un à l'autre.Shield element 165 is configured to electrically isolate conductive element 160 from the exterior of assembly 42 when switching device 40 is attached to transformer 35. In particular, shield element 165 surrounds the element conductor 160 in a plane perpendicular to the main direction of the first primary connector 55 when the connectors 55 and 130 are connected to each other.

L'élément de protection 165 est, par exemple, venu de matière avec le deuxième boîtier 110. Par exemple, l'élément de protection 165 est formé par une portion du deuxième boîtier 165, telle qu'une portion délimitant un orifice configuré pour accueillir le premier connecteur primaire 55.The protection element 165 is, for example, integral with the second casing 110. For example, the protection element 165 is formed by a portion of the second casing 165, such as a portion delimiting an orifice configured to accommodate the first primary connector 55.

Selon le mode de réalisation représenté sur la figure 3, l'élément de protection 165 est une portion du deuxième boîtier 110 formant une saillie à partir du reste du deuxième boîtier 110.According to the embodiment shown in the picture 3 , the protective element 165 is a portion of the second casing 110 forming a projection from the rest of the second casing 110.

L'élément de protection 165 est, par exemple, configuré pour accueillir le fourreau 95 du premier connecteur primaire 55. En particulier, l'élément de protection 165 est complémentaire du fourreau 95 et configuré pour enserrer le fourreau 95 dans un plan perpendiculaire à la direction principale de l'élément 90 correspondant, de manière à empêcher un mouvement relatif entre les deux boîtiers 110.The protection element 165 is, for example, configured to accommodate the sleeve 95 of the first primary connector 55. In particular, the protection element 165 is complementary to the sleeve 95 and configured to grip the sleeve 95 in a plane perpendicular to the main direction of the corresponding element 90, so as to prevent relative movement between the two boxes 110.

Le deuxième connecteur secondaire 135 est configuré pour être connecté au deuxième connecteur primaire 65 lorsque le dispositif de commutation 40 est fixé au transformateur 35.Second secondary connector 135 is configured to be connected to second primary connector 65 when switching device 40 is attached to transformer 35.

Le deuxième connecteur secondaire 135 est configuré pour coopérer avec le deuxième connecteur primaire 65 pour fixer le dispositif de commutation 40 au transformateur 35, notamment pour fixer le deuxième boîtier 110 au premier boîtier 50.The second secondary connector 135 is configured to cooperate with the second primary connector 65 to fix the switching device 40 to the transformer 35, in particular to fix the second casing 110 to the first casing 50.

Le deuxième connecteur secondaire 135 est par exemple identique au premier connecteur secondaire 130.The second secondary connector 135 is for example identical to the first secondary connector 130.

Optionnellement, le dispositif de commutation 40 comporte, en outre un ou plusieurs éléments de fixation configurés pour coopérer avec le transformateur 35 pour fixer le dispositif de commutation 40 dans sa position de connexion au transformateur 35.Optionally, the switching device 40 further comprises one or more fixing elements configured to cooperate with the transformer 35 to fix the switching device 40 in its connection position to the transformer 35.

Chaque élément de fixation est, par exemple, un élément en relief par rapport au deuxième boîtier 110 configurer pour solidariser le deuxième boîtier 110 au premier boîtier 50. Chaque élément en relief est, notamment, configurée pour coopérer avec un élément complémentaire du premier boîtier 50. Par exemple, chaque élément en relief est une protrusion configurée pour être vissée à l'élément complémentaire, ou encore pour être insérée dans l'élément complémentaire afin de maintenir les boîtiers 110 et 50 en position l'un par rapport à l'autre.Each fastening element is, for example, an element in relief with respect to the second housing 110 configured to secure the second housing 110 to the first housing 50. Each element in relief is, in particular, configured to cooperate with a complementary element of the first housing 50 For example, each element in relief is a protrusion configured to be screwed to the complementary element, or to be inserted into the complementary element in order to maintain the housings 110 and 50 in position with respect to each other. .

L'utilisation des connecteurs secondaires 130 et 135 pour fixer le transformateur 40 et le dispositif de commutation 35 l'un à l'autre permet de simplifier la structure du véhicule, notamment en évitant de devoir prévoir des mécanismes additionnels de fixation. En effet, même si le transformateur 35 et le dispositif de commutation 40 sont distants l'un de l'autre, les conducteurs électriques les reliant doivent être fixés à ces dispositifs, tandis que le transformateur 35 et le dispositif de commutation 40 doivent chacun être fixés au véhicule. Grâce à l'invention, les moyens de fixation du dispositif de commutation 40 au véhicule ne sont plus nécessaires, puisque leur rôle est joué par les connecteurs 130 et 135.The use of the secondary connectors 130 and 135 to fix the transformer 40 and the switching device 35 to each other makes it possible to simplify the structure of the vehicle, in particular by avoiding the need to provide additional fixing mechanisms. Indeed, even if the transformer 35 and the switching device 40 are distant from each other, the electrical conductors connecting them must be fixed to these devices, while the transformer 35 and the switching device 40 must each be attached to the vehicle. Thanks to the invention, the means for fixing the switching device 40 to the vehicle are no longer necessary, since their role is played by the connectors 130 and 135.

En outre, les connecteurs secondaires 130 et 135 peuvent être utilisés avec des transformateurs 35 déjà existants, qui permettent actuellement la fixation des conducteurs à leurs connecteurs 55, 65.In addition, the secondary connectors 130 and 135 can be used with already existing transformers 35, which currently allow the attachment of the conductors to their connectors 55, 65.

Par ailleurs, l'utilisation des connecteurs secondaires 130 et 135 pour fixer le transformateur 35 et le dispositif de commutation 40 l'un à l'autre permet de fixer conjointement ces deux dispositifs sous le châssis du véhicule 10, et ainsi de dégager de la place sur le toit du véhicule 10, où le dispositif de commutation 40 serait habituellement disposé.Furthermore, the use of the secondary connectors 130 and 135 to fix the transformer 35 and the switching device 40 to each other makes it possible to fix these two devices together under the chassis of the vehicle 10, and thus to free up place on the roof of the vehicle 10, where the switching device 40 would usually be placed.

Il est à noter que des modes de réalisation du dispositif de commutation 40 comportant un unique connecteur secondaire 130 sont également envisageables, comme il apparaîtra par la suite. Toutefois, un dispositif de commutation 40 comportant deux connecteurs secondaires 130, 135 dont l'un est connecté en permanence à la borne d'entrée 115 permet de contrôler l'alimentation électrique des deux enroulements primaires 45, 60 d'un transformateur comportant deux tels enroulements, puisque le premier enroulement primaire 45 n'est alors alimenté que lorsque le dispositif de commutation 40 est dans la première configuration.It should be noted that embodiments of the switching device 40 comprising a single secondary connector 130 are also possible, as will appear subsequently. However, a switching device 40 comprising two secondary connectors 130, 135, one of which is permanently connected to the input terminal 115, makes it possible to control the electrical supply of the two primary windings 45, 60 of a transformer comprising two such windings, since the first primary winding 45 is then supplied only when the switching device 40 is in the first configuration.

Une vis permet de solidariser le transformateur 35 et le dispositif de commutation 40 de manière efficace, notamment lorsque le connecteur primaire 55, 65 est accueilli dans le connecteur secondaire 130, 135 correspondant.A screw makes it possible to secure the transformer 35 and the switching device 40 effectively, in particular when the primary connector 55, 65 is housed in the corresponding secondary connector 130, 135.

La présence d'un ou plusieurs élément(s) de fixation additionnels permet de renforcer la solidité de la fixation. Pour cela, des éléments en relief par rapport au boîtier 110 du dispositif de commutation 40 et coopérant avec des éléments complémentaires du boîtier 50 du transformateur 40 permettent une fixation simple et robuste.The presence of one or more additional fixing element(s) makes it possible to reinforce the solidity of the fixing. For this, elements in relief relative to the casing 110 of the switching device 40 and cooperating with complementary elements of the casing 50 of the transformer 40 allow a simple and robust fixing.

Selon une variante, le dispositif de commutation 40 comporte, en outre, un organe de détection configuré pour détecter un défaut électrique, notamment un défaut électrique d'un courant circulant entre la borne d'entrée 115 et le premier connecteur secondaire 130.According to a variant, the switching device 40 further comprises a detection member configured to detect an electrical fault, in particular an electrical fault of a current flowing between the input terminal 115 and the first secondary connector 130.

Le défaut électrique est, par exemple, un surcourant, une surtension, un courtcircuit, ou encore l'apparition d'un arc électrique, bien que d'autres types de défauts électriques soient envisageables.The electrical fault is, for example, an overcurrent, an overvoltage, a short circuit, or even the appearance of an electric arc, although other types of electrical faults can be envisaged.

L'organe de détection est configuré pour commander une commutation de l'organe de commutation 120 depuis la première configuration jusqu'à la deuxième configuration en cas de détection d'un tel défaut, par exemple par l'envoi d'une commande de commutation à l'actionneur 125.The detection member is configured to command a switching of the switching member 120 from the first configuration to the second configuration in the event of detection of such a fault, for example by sending a switching command to actuator 125.

Il est à noter que l'organe de détection est susceptible d'être distant du reste du dispositif de commutation 40, par exemple si l'organe de détection est contenu dans un boîtier distinct du boîtier 110.It should be noted that the detection member is likely to be remote from the rest of the switching device 40, for example if the detection member is contained in a box separate from the box 110.

L'organe de détection est, notamment, configuré pour mesurer des valeurs d'un paramètre dudit courant électrique, et pour détecter le défaut en fonction des valeurs mesurées.The detection member is, in particular, configured to measure values of a parameter of said electric current, and to detect the fault as a function of the measured values.

Dans ce cas, le dispositif de commutation 40 comporte, par exemple, un unique connecteur secondaire 130, et en particulier ne comporte pas le deuxième connecteur secondaire 135. Ce mode de réalisation est notamment utile dans un rôle de disjoncteur protégeant un transformateur 35 à un seul enroulement primaire 45.In this case, the switching device 40 comprises, for example, a single secondary connector 130, and in particular does not comprise the second secondary connector 135. This embodiment is particularly useful in the role of circuit breaker protecting a transformer 35 at a single primary winding 45.

Claims (10)

  1. A switching device (40) for a vehicle (10) comprising a transformer (35), the vehicle (10) being in particular a public transit vehicle, the transformer (35) comprising at least one first winding (45), a first housing (50) containing the first winding (45), and a first primary connector (55) electrically connected to the first winding (45) through the first housing (50), the switching device (40) comprising a second housing (110), an input terminal (115) configured to receive an electric current, a first secondary connector (130), and a switching member (120) configured to switch between a first configuration in which the switching member (120) electrically connects the input terminal (115) and the first secondary connector (130) and a second configuration in which the switching member (120) electrically isolates the input terminal (115) from the first secondary connector (130), the switching member (120) being housed in the second housing (110), the first secondary connector (130) being electrically connected to the switching member (120) through the second housing (110) and being adapted to be connected to the first primary connector (55),
    the switching device (40) being characterized in that the first secondary connector (130) is configured to cooperate with the first primary connector (55) to attach the switching device (40) to the transformer (35), in particular to the first housing (50), in a connection position when the first primary connector (55) is connected to the first secondary connector (130), the second housing (110) being integral with the first housing (50) when the switching device (40) is in the connection position.
  2. The switching device according to claim 1, further comprising a sensing member configured to measure values of an electric current flowing between the input terminal (115) and the first secondary connector (130) and to control switching of the switching member (120) from the first configuration to the second configuration based on the measured values.
  3. The switching device according to claim 1 or 2, intended to be connected to a transformer (35) further comprising a second winding (60) and a second primary connector (65) electrically connected to the second winding (60) through the first housing (110), the switching device (40) further comprising a second secondary connector (135) electrically connected to the input terminal (115) and intended to be connected to the second primary connector (65), the second secondary connector (135) being configured to cooperate with the second primary connector (65) to attach the switching device (40) to the transformer (35), in particular to the first housing (50), in the connection position when the second primary connector (65) is connected to the second secondary connector (135).
  4. The switching device according to any one of claims 1 to 3, wherein each primary connector (55, 65) has a first opening for receiving a screw (170), each secondary connector (130, 135) having a second opening through the secondary connector and being configured to be attached to the corresponding primary connector by the screw (170) when the screw (170) is received in both the first and second openings.
  5. An assembly (42) comprising a switching device (40) according to any of the preceding claims and a transformer (35) comprising at least a first winding (45), a first housing (50) containing the first winding (45) and a first primary connector (55) electrically connected to the first winding (45) through the first housing (50).
  6. The assembly according to claim 5, wherein the second housing (110) further comprises at least one fastener configured to be attached to the first housing (50) to secure the second housing (110) to the first housing (50).
  7. The assembly according to claim 6, wherein the or each fastener is a raised member relative to the second housing (110) and configured to cooperate with a complementary member of the first housing (50) to attach the first housing (50) to the second housing (110).
  8. The assembly according to any one of claims 5 to 7, wherein the first primary connector (55) forms a projection from the first housing (50), the first primary connector (55) being received in the first secondary connector (130) when the switching device (40) is in the connected position.
  9. A vehicle (10), in particular a public transit vehicle, comprising an assembly (42) according to one of claims 5 to 8.
  10. The vehicle according to claim 9, wherein the assembly (42) is attached under a chassis (15) of the vehicle (10).
EP21179929.1A 2020-06-17 2021-06-17 Switching device, associated assembly and vehicle comprising such an assembly Active EP3926650B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2006316A FR3111733B1 (en) 2020-06-17 2020-06-17 Switching device, associated assembly and vehicle comprising such an assembly

Publications (2)

Publication Number Publication Date
EP3926650A1 EP3926650A1 (en) 2021-12-22
EP3926650B1 true EP3926650B1 (en) 2022-10-12

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Application Number Title Priority Date Filing Date
EP21179929.1A Active EP3926650B1 (en) 2020-06-17 2021-06-17 Switching device, associated assembly and vehicle comprising such an assembly

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EP (1) EP3926650B1 (en)
FR (1) FR3111733B1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH202076A (en) * 1937-02-25 1938-12-31 Bbc Brown Boveri & Cie High-voltage switchgear with oil transformer.
JPWO2016125328A1 (en) * 2015-02-04 2017-05-25 三菱電機株式会社 Switchgear
JP2018049764A (en) * 2016-09-23 2018-03-29 株式会社日立産機システム Switch unit and railway vehicle
EP3396687A1 (en) * 2017-04-28 2018-10-31 ABB Schweiz AG Energizing method of a transformer, and transformer connection assembly
DE102017213709A1 (en) * 2017-08-07 2019-02-07 Siemens Aktiengesellschaft Plug-in connection for connecting an insulated high-voltage conductor to an electrical device
US10784064B2 (en) * 2018-10-12 2020-09-22 S&C Electric Company Reduced size fault interrupter

Also Published As

Publication number Publication date
FR3111733A1 (en) 2021-12-24
EP3926650A1 (en) 2021-12-22
FR3111733B1 (en) 2022-07-01

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