EP3080828B1 - Electrical switching device - Google Patents

Electrical switching device Download PDF

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Publication number
EP3080828B1
EP3080828B1 EP14809626.6A EP14809626A EP3080828B1 EP 3080828 B1 EP3080828 B1 EP 3080828B1 EP 14809626 A EP14809626 A EP 14809626A EP 3080828 B1 EP3080828 B1 EP 3080828B1
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EP
European Patent Office
Prior art keywords
contact
terminals
module
command
input
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EP14809626.6A
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German (de)
French (fr)
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EP3080828A1 (en
Inventor
Patrick Larcher
Patrick Comtois
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Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/14—Terminal arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/045—Details particular to contactors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings
    • H01H50/443—Connections to coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/005—Inversing contactors

Definitions

  • the present invention relates to an electrical switching device of the type comprising an electrical power switching module and a control module.
  • such an electrical switching device is a three-phase inverter adapted to be connected between an electric motor and an engine power system, in order to allow the crossing of two phases of a three-phase power supply of the electric motor to reverse it. the direction of rotation.
  • Switching devices including power contact terminals, control terminals for controlling an electromagnetic drive device and auxiliary contact terminals, for carrying out operation control operations.
  • the patent application FR2697371 discloses a contactor device consisting of a contact block formed of a housing carrying fixed contacts connected to connection terminals.
  • the set of connection terminals for making power contacts, control contacts and auxiliary control contacts is located on the front of the housing.
  • the device comprises a movable contact carrier equipped with contact bridges cooperating with the fixed contacts so as to constitute a set of power poles, the contact carrier being actuated via an electromagnet. Maintenance of such a contactor device is complex, complete disassembly of the housing being necessary to access the contact bridge.
  • the patent application FR2983633 discloses an electrical switching device comprising a power module comprising six power contact terminals, including three input contact terminals and three output contact terminals, and, on either side of the power module, two terminals of control contact.
  • This electrical switching device is disposed in a housing.
  • this electrical switching device has no auxiliary contact terminals, making it possible to carry out operation control operations. Adding a control module having auxiliary contact terminals would increase the size of the electrical switching device.
  • the object of the invention is to provide an electrical switching device of the aforementioned type, which overcomes the aforementioned drawbacks of known solutions, incorporating auxiliary contact terminals, while allowing easier maintenance.
  • the electrical switching device further comprises a control module comprising an auxiliary input contact terminal and two auxiliary output contact terminals, said input auxiliary contact terminal being common to the two auxiliary contact terminals. output, said power module being removable separately from the control and control modules.
  • the proposed switching device comprises a power contact module, a control module and a control module, the power contact module being removable.
  • the maintenance of such a switching device is improved, the replacement of the power module being made easier than in the previously known devices.
  • the switching device 10 shown in FIG. figure 1 comprises three modules, respectively an electrical power switching module 12, a control module 14 and a control module 16.
  • Each of the modules comprises a plurality of contact terminals, situated on the same face 17, called the front face, of the switching device 10.
  • the electrical power switching module 12 is situated at the front of the control module 14 and comprises a set of six power contact terminals, hereinafter simply termed terminals, a first 18A, a second 18B and a third 18C terminal. input and a first 20A, a second 20B and a third output terminal 20C for use in a three-phase power network.
  • the control module 14 comprises, on the same face 17 of the switching device 10, a set of three control terminals, an input control terminal 22A and a first 24A and a second 24B output control terminal.
  • the control module 14 comprises an electromagnetic drive device (not visible on the figure 1 ) capable of being powered by said control terminals for controlling an operating position of the switching device 10.
  • the electromagnetic driving device is a two-coil electromagnetic actuator.
  • an electromagnetic actuator as described in the patent application FR1360246 is used.
  • the first output control terminal 24A is located in the same depth plane as the input terminals 18A, 18B, 18C and 20A, 20B, 20C while the second output control terminal 24B is set back. with respect to said depth plane.
  • the control module 16 comprises, on the same face 17 of the switching device 10, a set of three auxiliary contact terminals, an auxiliary input contact terminal 26A, and a first 28A and a second 28B auxiliary contact terminal of exit.
  • the first auxiliary output contact terminal 28A is located in the same depth plane as the input terminals 18A, 18B, 18C and 20A, 20B, 20C, while the second output auxiliary contact terminal 28B is set back from said depth plane.
  • the various contact terminals are offset vertically, so along the Y axis of the associated mark, represented on the figure 1 .
  • the input terminals 18A, 18B, 18C are located slightly below the respective input control terminals 22A and auxiliary contact 26A.
  • the output terminals 20A, 20B, 20C are located substantially above the second control terminals 24B and auxiliary contact 28B, and substantially below the first control terminals 24A and auxiliary contact 28A along the vertical axis.
  • the size of the switching device 10 is substantially identical to the size of a device of the same type having only ten contact terminals on its front face.
  • the switching device 10 forms a compact block, the dimensions of its front face being preferably of the order of 45 mm x 45 mm (millimeters).
  • the power switching modules 12, 14 of control and 16 of control are separable, the electrical power switching module 12 being removable, and therefore removable, from the front of the switching device 10.
  • the manipulation of the module 12 electrical power switching is easy, and its replacement in case of wear or defect is facilitated.
  • the terminal assemblies of the control module 14 on the one hand and the control module 16 on the other hand are positioned on either side of the all the terminals of the power switch module 12, so as to facilitate wiring.
  • each of the electrical power switching, control and control switching modules 12 has a visually distinctive protective cover, for example by its color, so as to make the wiring and maintenance of the switching device even easier. . More generally, other indications of visual distinction allowing an easy distinction between the modules are used for the protective covers.
  • the figure 2 illustrates a schematic view of the contact terminals of the modules 12 of electrical switching power, 14 control and 16 control, and the figure 3 represents the schematic diagram of the associated electrical operation.
  • the control terminals 22A, 24A, 24B are connected to contacts respectively denoted A1, A2, A3 on the block diagram of the figure 3 , for controlling the direction of the electric current flowing through the two coils of the electromagnetic actuator of the control module. Both coils are powered by a common input contact A1.
  • the first 18A, second 18B and third 18C input terminals of the electrical power switching module 12 are connected to the contacts referenced 1L1, 3L2, 5L3 on the Figures 2 and 3
  • the first 20A, second 20B and third 20C output terminals of the electrical power switching module 12 are connected to the contacts referenced 2T1, 4T2, 6T3 on the Figures 2 and 3 .
  • the power switching module 12 performs electrical contact and electrical switching functions between phase conductors, which is shown schematically on the figure 3 by a set of three first electrical switches 30A, 30B, 30C and three second electric switches 32A, 32B, 32C, each electrical switch 30A, 30B, 30C, 32A, 32B, 32C being adapted to switch between an open position and a closed position .
  • This configuration of switches makes it possible, on the one hand, to perform the function of the contactor / switch per power phase and, on the other hand, to perform switching between power phases.
  • the auxiliary contact terminals 26A, 28A, 28B of the control module 16 are connected to contacts respectively labeled 13NO, 14NO, 15NO in the block diagram of FIG. figure 3 .
  • the corresponding functional principle diagram comprises two switches 34A, 34B, represented in open position, typically called “NO” for "normally open", having a common 13NO input auxiliary contact.
  • switches are all presented in normally open position (NO), but it is understood that in a variant, all configurations including normally open switches and normally closed (or “closed”) switches are possible.
  • FIGS. 4 and 5 illustrate an embodiment of an electrical switching device according to the invention.
  • An electromagnetic actuator 40 with two coils is positioned in a housing 42 of a control module 14.
  • Electrical coupling elements 44A, 44B, 44C and 44D are present in projection, the coupling elements 44A, 44B being able respectively to make a fixed input control contact of the first coil and a fixed input control contact respectively. the second coil, and the coupling elements 44C, 44D being able to make a first and second output control fixed contact.
  • Connection elements 46A, 48A, 48B, 50A, 52A, 52B for the production of control and control contact terminals for connection of cables are also illustrated in FIG. figure 4 .
  • Each connection element comprises a hole 54 for the passage of the stem of a screw of a screw-nut assembly.
  • connection element 46A further comprises two connection orifices 56A, 56B, adapted to cooperate with the coupling elements 44A, 44B, and to make a common input contact terminal for feeding the two coils of the electromagnetic actuator 40.
  • connection element 48A comprises a connection orifice 58A adapted to cooperate with the coupling element 44C and the connection element 48B comprises a connection orifice 58B adapted to cooperate with the coupling element 44D.
  • connection elements 46A, 48A, 48B are associated with the input control terminal 22A and output terminal 24A, 24B.
  • the connecting members 50A, 52A, 52B, having screw rod passage holes 54, correspond to the auxiliary contact terminals 26A, 28A and 28B.
  • connection elements are connected by a movable contact blade 60, able to be moved to establish or interrupt the passage of electrical current by actuation of a lever 62.
  • Each auxiliary contact consists of a fixed auxiliary contact 64 and a mobile auxiliary contact associated with the movable contact blade 60.
  • the lever 62 is actuated by the passage of current in the respective coils of the electromagnetic actuator and is adapted to take three positions corresponding to the states of the coils called "forward”, “reverse”, “neutral position or OFF"
  • the movable contact blade 60 is adapted to be plugged into a support member 66 which is mechanically connected to the lever 62 and is moved by this lever.
  • the figure 5 illustrates the control module 14 after fixing the connection elements 46A, 48A, 48B, 50A, 52A, 52B, and screw assemblies 70 and nut 74 for the connection of external electrical cables in the contact terminals 22A, 24A, 24B, 26A, 28A, 28B respectively.
  • the figure 6 schematically illustrates the operation of the switches 34A, 34B corresponding to the auxiliary contacts as a function of the direction of the electric current in the electromagnetic coils 76, 78 of the electromagnetic actuator 40.
  • the first direction of the current noted S1 in the figure causes the displacement of the movable contact blade 60 so as to close the switch 34A, while the current direction noted S2 in the figure causes the displacement of the movable contact blade 60 so as to close the switch 34B.
  • the figure 7 illustrates a block 80 of power contacts forming part of the electrical power switching module 12, and a movable contact holder 82, able to form, with the block 80 of power contacts, the power switch module 12.
  • an electrical switching device 10 as shown in FIG. figure 8 is obtained.
  • the device 10 is shown without the separation caps of the sets of control terminals, power and control.
  • the movable contact holder 82 comprises a fixing element 84 adapted to be positioned on a support element mechanically connected to the lever 62.
  • the power contact block 80 includes first fixed input contacts 86A, 86B, 86C, second fixed input contacts 88A, 88B, 88C, as well as first fixed output contacts 90A, 90B, 90C and second fixed output contacts 92A, 92B, 92C.
  • the first input contact terminal 18A is electrically connected to the first input fixed contact 86A and the second input fixed contact 88A, and the first terminal output 20A is electrically connected to the first fixed output contact 90A and the second fixed output contact 92A.
  • the movable contact holder 82 comprises movable contacts 94A, 94B, 94C, able to be displaced in translation by the lever 62 driven by the electromagnetic actuator.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Description

La présente invention concerne un dispositif de commutation électrique du type comprenant un module de commutation électrique de puissance et un module de commande.The present invention relates to an electrical switching device of the type comprising an electrical power switching module and a control module.

Elle se situe dans le domaine des dispositifs de commutation aptes à réaliser des fonctions de contact/interruption et de commutation électrique entre conducteurs.It is in the field of switching devices capable of performing contact / interruption functions and electrical switching between conductors.

Ces dispositifs trouvent de nombreuses applications pour la connexion, l'interruption et l'inversion de courant électrique de puissance, notamment pour la commande de moteur électrique, de résistance de chauffage ou de circuit de puissance en général.These devices find many applications for connection, interruption and reversal of electric power, especially for the control of electric motor, heating resistor or power circuit in general.

Par exemple un tel dispositif de commutation électrique est un inverseur triphasé propre à être connecté entre un moteur électrique et un système d'alimentation moteur, afin de permettre le croisement de deux phases d'un courant triphasé d'alimentation du moteur électrique pour en inverser le sens de rotation.For example, such an electrical switching device is a three-phase inverter adapted to be connected between an electric motor and an engine power system, in order to allow the crossing of two phases of a three-phase power supply of the electric motor to reverse it. the direction of rotation.

On connaît des dispositifs de commutation, comportant des bornes de contact de puissance, des bornes de commande permettant la commande d'un dispositif d'entraînement électromagnétique et des bornes de contacts auxiliaires, permettant de réaliser des opérations de contrôle de fonctionnement.Switching devices are known, including power contact terminals, control terminals for controlling an electromagnetic drive device and auxiliary contact terminals, for carrying out operation control operations.

Par exemple, la demande de brevet FR2697371 décrit un dispositif contacteur constitué par un bloc de contacts formé d'un boîtier portant des contacts fixes reliés à des bornes de raccordement. L'ensemble des bornes de raccordement pour réaliser des contacts de puissance, des contacts de commande et des contacts auxiliaires de contrôle est situé sur la face avant du boîtier. Le dispositif comprend un porte-contacts mobile équipé de ponts de contacts coopérant avec les contacts fixes de manière à constituer un ensemble de pôles de puissance, le porte-contacts étant actionné par l'intermédiaire d'un électroaimant. La maintenance d'un tel dispositif contacteur est complexe, un démontage complet du boîtier étant nécessaire pour accéder au pont de contacts.For example, the patent application FR2697371 discloses a contactor device consisting of a contact block formed of a housing carrying fixed contacts connected to connection terminals. The set of connection terminals for making power contacts, control contacts and auxiliary control contacts is located on the front of the housing. The device comprises a movable contact carrier equipped with contact bridges cooperating with the fixed contacts so as to constitute a set of power poles, the contact carrier being actuated via an electromagnet. Maintenance of such a contactor device is complex, complete disassembly of the housing being necessary to access the contact bridge.

La demande de brevet FR2983633 décrit un dispositif de commutation électrique comportant un module de puissance comportant six bornes de contacts de puissances, dont trois bornes de contacts d'entrée et trois bornes de contacts de sortie, et, de part et d'autre du module de puissance, deux bornes de contact de commande. Ce dispositif de commutation électrique est disposé dans un boîtier. Cependant, ce dispositif de commutation électrique ne comporte pas de bornes de contacts auxiliaires, permettant de réaliser des opérations de contrôle de fonctionnement. L'ajout d'un module de contrôle présentant des bornes de contact auxiliaires augmenterait l'encombrement du dispositif de commutation électrique.The patent application FR2983633 discloses an electrical switching device comprising a power module comprising six power contact terminals, including three input contact terminals and three output contact terminals, and, on either side of the power module, two terminals of control contact. This electrical switching device is disposed in a housing. However, this electrical switching device has no auxiliary contact terminals, making it possible to carry out operation control operations. Adding a control module having auxiliary contact terminals would increase the size of the electrical switching device.

Or, il est avantageux, pour de nombreuses applications, de disposer d'un dispositif de commutation ayant un encombrement aussi faible que possible.However, it is advantageous for many applications to have a switching device with as small a footprint as possible.

Le but de l'invention est de proposer un dispositif de commutation électrique du type précité, qui remédie aux inconvénients précités des solutions connues, intégrant des bornes de contact auxiliaires, tout en permettant une maintenance plus aisée.The object of the invention is to provide an electrical switching device of the aforementioned type, which overcomes the aforementioned drawbacks of known solutions, incorporating auxiliary contact terminals, while allowing easier maintenance.

A cet effet, l'invention propose selon un premier aspect, un dispositif de commutation électrique comportant :

  • un module de commutation électrique de puissance, ledit module de commutation électrique de puissance comportant un bloc de trois bornes d'entrée et trois bornes de sortie, chaque borne d'entrée ou de sortie étant connectée à un contact fixe d'un interrupteur électrique comprenant en outre un contact mobile, apte à commuter entre une position ouverte et une position fermée selon un positionnement du contact mobile par rapport au contact fixe, un dit contact mobile étant apte à être déplacé par un dispositif d'entraînement électromagnétique,
  • un module de commande, comportant un ensemble de bornes de commande formé d'au moins une borne d'entrée de commande et au moins une borne de sortie de commande, le module de commande comprenant ledit dispositif d'entraînement électromagnétique apte à être alimenté par lesdites bornes de commande pour commander une position d'un desdits contacts mobiles.
For this purpose, the invention proposes according to a first aspect, an electrical switching device comprising:
  • an electrical power switching module, said power electrical switching module comprising a block of three input terminals and three output terminals, each input or output terminal being connected to a fixed contact of an electrical switch comprising furthermore a movable contact capable of switching between an open position and a closed position according to a positioning of the moving contact with respect to the fixed contact, a said moving contact being able to be moved by an electromagnetic drive device,
  • a control module, comprising a set of control terminals formed of at least one control input terminal and at least one control output terminal, the control module comprising said electromagnetic drive device capable of being powered by said control terminals for controlling a position of one of said movable contacts.

Le dispositif de commutation électrique selon l'invention comporte en outre un module de contrôle comprenant une borne de contact auxiliaire d'entrée et deux bornes de contact auxiliaire de sortie, ladite borne de contact auxiliaire d'entrée étant commune aux deux bornes de contact auxiliaire de sortie, ledit module de puissance étant démontable séparément des modules de commande et de contrôle.The electrical switching device according to the invention further comprises a control module comprising an auxiliary input contact terminal and two auxiliary output contact terminals, said input auxiliary contact terminal being common to the two auxiliary contact terminals. output, said power module being removable separately from the control and control modules.

Avantageusement, le dispositif de commutation proposé comporte un module de contacts de puissance, un module de commande et un module de contrôle, le module de contacts de puissance étant amovible. Ainsi, la maintenance d'un tel dispositif de commutation est améliorée, le remplacement du module de puissance étant rendu plus aisé que dans les dispositifs connus auparavant.Advantageously, the proposed switching device comprises a power contact module, a control module and a control module, the power contact module being removable. Thus, the maintenance of such a switching device is improved, the replacement of the power module being made easier than in the previously known devices.

De plus, avantageusement, l'utilisation d'une borne de contact d'entrée commune pour deux bornes de contact de sortie, respectivement dans le module de contrôle et dans le module de commande, permet d'obtenir un dispositif de commutation à encombrement réduit.In addition, advantageously, the use of a common input contact terminal for two output contact terminals, respectively in the control module and in the control module, makes it possible to obtain a space-saving switching device. .

Le dispositif de commutation selon l'invention peut également présenter une ou plusieurs des caractéristiques ci-dessous :

  • l'ensemble de bornes de commande et l'ensemble de bornes de contrôle sont montés de part et d'autre du bloc de bornes du module de commutation électrique de puissance ;
  • le dispositif de commutation est disposé dans un boîtier et l'ensemble de bornes de commande, l'ensemble de bornes de contrôle et le bloc de bornes du module de commutation électrique de puissance sont montés sur la face avant dudit boîtier ;
  • chacun desdits ensemble de bornes de commande, ensemble de bornes de contrôle et bloc de bornes du module de commutation électrique de puissance est protégé par un capot de protection comportant une indication de distinction visuelle ;
  • ledit dispositif d'entraînement électromagnétique comporte deux bobines électromagnétiques et le module de commande comporte une borne de commande d'entrée commune apte à alimenter lesdites bobines électromagnétiques ;
  • le dispositif de commutation comporte deux éléments de couplage électrique aptes à réaliser respectivement un contact fixe de commande d'entrée d'une première bobine électromagnétique et un contact fixe de commande d'entrée d'une deuxième bobine électromagnétique, et il comporte un élément connexion comportant deux orifices de connexion, adaptés à coopérer avec lesdits éléments de couplage électrique, et à réaliser une borne de contact d'entrée commune pour l'alimentation desdites première et deuxième bobine électromagnétique ;
  • le module de contrôle comprend deux interrupteurs, chaque interrupteur étant propre à commuter entre une position ouverte et une position fermée, chaque interrupteur comportant un contact fixe d'entrée connecté à ladite borne de contact auxiliaire d'entrée commune, et un contact fixe sortie connecté à une dite borne de contact auxiliaire de sortie, ledit contact fixe d'entrée et un contact fixe de sortie étant aptes à être reliés électriquement par un contact mobile porté par une lame de contact mobile, ladite lame de contact mobile étant fixée dans un élément de support apte à être déplacé par dispositif d'entraînement électromagnétique.
The switching device according to the invention may also have one or more of the following characteristics:
  • the set of control terminals and the set of control terminals are mounted on either side of the terminal block of the electrical power switching module;
  • the switching device is arranged in a housing and the set of control terminals, the control terminal assembly and the terminal block of the electrical power switching module are mounted on the front face of said housing;
  • each of said set of control terminals, set of control terminals and terminal block of the electrical power switching module is protected by a protective cover having a visual distinction indication;
  • said electromagnetic drive device comprises two electromagnetic coils and the control module comprises a common input control terminal adapted to supply said electromagnetic coils;
  • the switching device comprises two electric coupling elements able respectively to produce a fixed input control contact of a first electromagnetic coil and a fixed input control contact of a second electromagnetic coil, and it comprises a connection element. having two connection ports adapted to cooperate with said electrical coupling elements, and providing a common input contact terminal for supplying said first and second electromagnetic coil;
  • the control module comprises two switches, each switch being able to switch between an open position and a closed position, each switch comprising a fixed input contact connected to said common input auxiliary contact terminal, and a fixed output contact connected at a said auxiliary output contact terminal, said fixed input contact and a fixed output contact being adapted to be electrically connected by a movable contact borne by a movable contact blade, said movable contact blade being fixed in an element support adapted to be moved by electromagnetic drive device.

D'autres caractéristiques et avantages de l'invention ressortiront de la description qui en est donnée ci-dessous, à titre indicatif et nullement limitatif, en référence aux figures annexées, parmi lesquelles :

  • la figure 1 représente une vue en perspective d'un dispositif contacteur-disjoncteur selon l'invention ;
  • la figure 2 représente une vue schématique de face des bornes de connexion d'un dispositif contacteur-disjoncteur selon l'invention ;
  • la figure 3 est un schéma de principe de fonctionnement d'un dispositif contacteur-disjoncteur selon la figure 2 ;
  • la figure 4 est une vue éclatée en perspective du module de commande et des éléments de connexion permettant de réaliser des bornes de commande et des bornes de contact auxiliaires selon un mode de réalisation ;
  • la figure 5 est une vue en perspective des éléments de la figure 4 montés ensemble ;
  • la figure 6 est une vue schématique en coupe illustrant le fonctionnement des contacts auxiliaires en lien avec le module de commande ;
  • la figure 7 est une vue en perspective de bornes de contact de puissance et du porte-contacts mobile associé ;
  • la figure 8 est une vue en perspective des bornes de contact d'un dispositif de commutation selon l'invention.
Other features and advantages of the invention will emerge from the description given below, by way of indication and in no way limiting, with reference to the appended figures, among which:
  • the figure 1 represents a perspective view of a contactor-circuit breaker device according to the invention;
  • the figure 2 represents a schematic front view of the connection terminals of a contactor-circuit breaker device according to the invention;
  • the figure 3 is a functional block diagram of a contactor-circuit breaker device according to the figure 2 ;
  • the figure 4 is an exploded perspective view of the control module and connection elements for making control terminals and auxiliary contact terminals according to one embodiment;
  • the figure 5 is a perspective view of the elements of the figure 4 assembled together;
  • the figure 6 is a schematic sectional view illustrating the operation of the auxiliary contacts in connection with the control module;
  • the figure 7 is a perspective view of power contact terminals and the associated mobile contact carrier;
  • the figure 8 is a perspective view of the contact terminals of a switching device according to the invention.

Le dispositif de commutation 10 représenté à la figure 1 comporte trois modules, respectivement un module 12 de commutation électrique de puissance, un module 14 de commande et un module 16 de contrôle.The switching device 10 shown in FIG. figure 1 comprises three modules, respectively an electrical power switching module 12, a control module 14 and a control module 16.

Chacun des modules comporte une pluralité de bornes de contact, situées sur une même face 17, appelée face avant, du dispositif de commutation 10.Each of the modules comprises a plurality of contact terminals, situated on the same face 17, called the front face, of the switching device 10.

Le module 12 de commutation électrique de puissance est situé à l'avant du module 14 de commande et comporte un ensemble de six bornes de contact de puissance, appelées ci-après simplement bornes, une première 18A, une deuxième 18B et une troisième 18C borne d'entrée et une première 20A, une deuxième 20B et une troisième 20C borne de sortie pour une utilisation dans un réseau de courant triphasé.The electrical power switching module 12 is situated at the front of the control module 14 and comprises a set of six power contact terminals, hereinafter simply termed terminals, a first 18A, a second 18B and a third 18C terminal. input and a first 20A, a second 20B and a third output terminal 20C for use in a three-phase power network.

Le module 14 de commande comporte, sur la même face 17 du dispositif de commutation 10, un ensemble de trois bornes de commande, une borne de commande d'entrée 22A et une première 24A et une deuxième 24B borne de commande de sortie.The control module 14 comprises, on the same face 17 of the switching device 10, a set of three control terminals, an input control terminal 22A and a first 24A and a second 24B output control terminal.

Le module 14 de commande comporte dispositif d'entraînement électromagnétique (non visible sur la figure 1) apte à être alimenté par lesdites bornes de commande pour commander une position de fonctionnement du dispositif de commutation 10. Dans le mode de réalisation, le dispositif d'entraînement électromagnétique est un actionneur électromagnétique à deux bobines.The control module 14 comprises an electromagnetic drive device (not visible on the figure 1 ) capable of being powered by said control terminals for controlling an operating position of the switching device 10. In the embodiment, the electromagnetic driving device is a two-coil electromagnetic actuator.

De préférence, un actionneur électromagnétique tel que décrit dans la demande de brevet FR1360246 est utilisé.Preferably, an electromagnetic actuator as described in the patent application FR1360246 is used.

La première borne 24A de commande de sortie est située dans un même plan de profondeur que les bornes 18A, 18B, 18C d'entrée et 20A, 20B, 20C de sortie, alors que la deuxième borne 24B de commande de sortie est située en retrait par rapport audit plan de profondeur.The first output control terminal 24A is located in the same depth plane as the input terminals 18A, 18B, 18C and 20A, 20B, 20C while the second output control terminal 24B is set back. with respect to said depth plane.

Le module 16 de contrôle comporte, sur la même face 17 du dispositif de commutation 10, un ensemble de trois bornes de contact auxiliaire, une borne de contact auxiliaire d'entrée 26A, et une première 28A et une deuxième 28B borne de contact auxiliaire de sortie.The control module 16 comprises, on the same face 17 of the switching device 10, a set of three auxiliary contact terminals, an auxiliary input contact terminal 26A, and a first 28A and a second 28B auxiliary contact terminal of exit.

De manière analogue aux bornes du module 14 de commande, la première borne 28A de contact auxiliaire de sortie est située dans un même plan de profondeur que les bornes 18A, 18B, 18C d'entrée et 20A, 20B, 20C de sortie, alors que la deuxième borne 28B de contact auxiliaire de sortie est située en retrait par rapport audit plan de profondeur.Similarly to the terminals of the control module 14, the first auxiliary output contact terminal 28A is located in the same depth plane as the input terminals 18A, 18B, 18C and 20A, 20B, 20C, while the second output auxiliary contact terminal 28B is set back from said depth plane.

En outre, les différentes bornes de contact sont décalées verticalement, donc selon l'axe Y du repère associé, représenté sur la figure 1. Les bornes d'entrée 18A, 18B, 18C sont situées légèrement en dessous des bornes d'entrée respectives de commande 22A et de contact auxiliaire 26A. Les bornes de sortie 20A, 20B, 20C sont situées sensiblement au-dessus des deuxièmes bornes de commande 24B et de contact auxiliaire 28B, et sensiblement en dessous des premières bornes de commande 24A et de contact auxiliaire 28A selon l'axe vertical.In addition, the various contact terminals are offset vertically, so along the Y axis of the associated mark, represented on the figure 1 . The input terminals 18A, 18B, 18C are located slightly below the respective input control terminals 22A and auxiliary contact 26A. The output terminals 20A, 20B, 20C are located substantially above the second control terminals 24B and auxiliary contact 28B, and substantially below the first control terminals 24A and auxiliary contact 28A along the vertical axis.

Ainsi, l'encombrement du dispositif de commutation 10 est sensiblement identique à l'encombrement d'un dispositif du même type ayant seulement dix bornes de contact sur sa face avant.Thus, the size of the switching device 10 is substantially identical to the size of a device of the same type having only ten contact terminals on its front face.

Le dispositif de commutation 10 forme un bloc compact, les dimensions de sa face avant étant de préférence de l'ordre de 45 mm x 45 mm (millimètres).The switching device 10 forms a compact block, the dimensions of its front face being preferably of the order of 45 mm x 45 mm (millimeters).

Avantageusement, les modules 12 de commutation électrique de puissance, 14 de commande et 16 de contrôle sont séparables, le module 12 de commutation électrique de puissance étant amovible, donc démontable, par l'avant du dispositif de commutation 10. Ainsi, la manipulation du module 12 de commutation électrique de puissance est aisée, et son remplacement en cas d'usure ou de défaut est facilité.Advantageously, the power switching modules 12, 14 of control and 16 of control are separable, the electrical power switching module 12 being removable, and therefore removable, from the front of the switching device 10. Thus, the manipulation of the module 12 electrical power switching is easy, and its replacement in case of wear or defect is facilitated.

Avantageusement, les ensembles de bornes du module 14 de commande d'une part et du module 16 de contrôle d'autre part sont positionnés de part et d'autre de l'ensemble des bornes du module 12 de commutation électrique de puissance, de manière à faciliter le câblage.Advantageously, the terminal assemblies of the control module 14 on the one hand and the control module 16 on the other hand are positioned on either side of the all the terminals of the power switch module 12, so as to facilitate wiring.

De préférence, chacun des modules 12 de commutation électrique de puissance, 14 de commande et 16 de contrôle comporte un capot de protection visuellement distinctif, par exemple par sa couleur, de manière à rendre encore plus aisé le câblage et la maintenance du dispositif de commutation. Plus généralement, d'autres indications de distinction visuelle permettant une distinction aisée entre les modules sont utilisées pour les capots de protection.Preferably, each of the electrical power switching, control and control switching modules 12 has a visually distinctive protective cover, for example by its color, so as to make the wiring and maintenance of the switching device even easier. . More generally, other indications of visual distinction allowing an easy distinction between the modules are used for the protective covers.

Le figure 2 illustre une vue schématique des bornes de contact des modules 12 de commutation électrique de puissance, 14 de commande et 16 de contrôle, et la figure 3 représente le schéma de principe de fonctionnement électrique associé.The figure 2 illustrates a schematic view of the contact terminals of the modules 12 of electrical switching power, 14 control and 16 control, and the figure 3 represents the schematic diagram of the associated electrical operation.

Les bornes de commande 22A, 24A, 24B sont raccordées à des contacts notés respectivement A1, A2, A3 sur le schéma de principe de la figure 3, permettant de commander le sens du courant électrique traversant les deux bobines de l'actionneur électromagnétique du module de commande. Les deux bobines sont alimentées par un contact d'entrée commun A1.The control terminals 22A, 24A, 24B are connected to contacts respectively denoted A1, A2, A3 on the block diagram of the figure 3 , for controlling the direction of the electric current flowing through the two coils of the electromagnetic actuator of the control module. Both coils are powered by a common input contact A1.

Les première 18A, deuxième 18B et troisième 18C bornes d'entrée du module 12 de commutation électrique de puissance sont liés aux contacts référencés 1L1, 3L2, 5L3 sur les figures 2 et 3, et les première 20A, deuxième 20B et troisième 20C bornes de sortie du module 12 de commutation électrique de puissance sont liés aux contacts référencés 2T1, 4T2, 6T3 sur les figures 2 et 3.The first 18A, second 18B and third 18C input terminals of the electrical power switching module 12 are connected to the contacts referenced 1L1, 3L2, 5L3 on the Figures 2 and 3 , and the first 20A, second 20B and third 20C output terminals of the electrical power switching module 12 are connected to the contacts referenced 2T1, 4T2, 6T3 on the Figures 2 and 3 .

Le module 12 de commutation de puissance réalise des fonctions de contact électrique et de commutation électrique entre conducteurs de phase, ce qui est représenté schématiquement sur la figure 3 par un ensemble de trois premiers interrupteurs électriques 30A , 30B, 30C et trois deuxièmes interrupteurs électriques 32A, 32B, 32C, chaque interrupteur électrique 30A, 30B, 30C, 32A, 32B, 32C étant propre à commuter entre une position ouverte et une position fermée. Cette configuration d'interrupteurs permet de réaliser d'une part la fonction de contacteur/interrupteur par phase de puissance, et d'autre part de réaliser des commutations entre phases de puissance.The power switching module 12 performs electrical contact and electrical switching functions between phase conductors, which is shown schematically on the figure 3 by a set of three first electrical switches 30A, 30B, 30C and three second electric switches 32A, 32B, 32C, each electrical switch 30A, 30B, 30C, 32A, 32B, 32C being adapted to switch between an open position and a closed position . This configuration of switches makes it possible, on the one hand, to perform the function of the contactor / switch per power phase and, on the other hand, to perform switching between power phases.

Les bornes de contact auxiliaire 26A, 28A, 28B du module 16 de contrôle sont raccordées à des contacts notés respectivement 13NO, 14NO, 15NO sur le schéma de principe de la figure 3. Le schéma de principe de fonctionnement correspondant comporte deux interrupteurs 34A, 34B, représentés en position ouverte, position classiquement appelée « NO » pour « normally open », ayant un contact auxiliaire d'entrée 13NO commun.The auxiliary contact terminals 26A, 28A, 28B of the control module 16 are connected to contacts respectively labeled 13NO, 14NO, 15NO in the block diagram of FIG. figure 3 . The corresponding functional principle diagram comprises two switches 34A, 34B, represented in open position, typically called "NO" for "normally open", having a common 13NO input auxiliary contact.

Dans l'exemple les interrupteurs sont tous présentés en position normalement ouverte (NO), mais il est bien entendu qu'en variante, toutes configurations incluant des interrupteurs normalement ouverts et des interrupteurs normalement fermés (ou « normally closed ») sont envisageables.In the example the switches are all presented in normally open position (NO), but it is understood that in a variant, all configurations including normally open switches and normally closed (or "closed") switches are possible.

Les figures 4 et 5 illustrent un mode de réalisation d'un dispositif de commutation électrique selon l'invention.The Figures 4 and 5 illustrate an embodiment of an electrical switching device according to the invention.

Un actionneur électromagnétique 40 à deux bobines est positionné dans un boîtier 42 d'un module de commande 14.An electromagnetic actuator 40 with two coils is positioned in a housing 42 of a control module 14.

Des éléments de couplage électrique 44A, 44B, 44C et 44D sont présents en saillie, les éléments de couplage 44A, 44B étant aptes à réaliser respectivement un contact fixe de commande d'entrée de la première bobine et un contact fixe de commande d'entrée de la deuxième bobine, et les éléments de couplage 44C, 44D étant aptes à réaliser un premier et deuxième contact fixe de commande de sortie.Electrical coupling elements 44A, 44B, 44C and 44D are present in projection, the coupling elements 44A, 44B being able respectively to make a fixed input control contact of the first coil and a fixed input control contact respectively. the second coil, and the coupling elements 44C, 44D being able to make a first and second output control fixed contact.

Des éléments de connexion 46A, 48A, 48B, 50A, 52A, 52B, pour la réalisation de bornes de contact de commande et de contrôle, permettant de réaliser la connexion de câbles (non représentés), sont également illustrés sur la figure 4. Chaque élément de connexion comporte un orifice 54 de passage de la tige d'une vis d'un ensemble vis-écrou.Connection elements 46A, 48A, 48B, 50A, 52A, 52B for the production of control and control contact terminals for connection of cables (not shown) are also illustrated in FIG. figure 4 . Each connection element comprises a hole 54 for the passage of the stem of a screw of a screw-nut assembly.

L'élément de connexion 46A comporte en outre deux orifices de connexion 56A, 56B, adaptés à coopérer avec les éléments de couplages 44A, 44B, et à réaliser une borne de contact d'entrée commune pour l'alimentation des deux bobines de l'actionneur électromagnétique 40.The connection element 46A further comprises two connection orifices 56A, 56B, adapted to cooperate with the coupling elements 44A, 44B, and to make a common input contact terminal for feeding the two coils of the electromagnetic actuator 40.

L'élément de connexion 48A comporte un orifice de connexion 58A, adapté à coopérer avec l'élément de couplage 44C et l'élément de connexion 48B comporte un orifice de connexion 58B, adapté à coopérer avec l'élément de couplage 44D.The connection element 48A comprises a connection orifice 58A adapted to cooperate with the coupling element 44C and the connection element 48B comprises a connection orifice 58B adapted to cooperate with the coupling element 44D.

Ainsi, les éléments de connexion 46A, 48A, 48B sont associés aux bornes de commande d'entrée 22A et de sortie 24A, 24B.Thus, the connection elements 46A, 48A, 48B are associated with the input control terminal 22A and output terminal 24A, 24B.

Les éléments de connexion 50A, 52A, 52B, comportant des orifices 54 de passage de tige de vis, correspondent aux bornes de contact auxiliaires 26A, 28A et 28B.The connecting members 50A, 52A, 52B, having screw rod passage holes 54, correspond to the auxiliary contact terminals 26A, 28A and 28B.

Ces éléments de connexion sont reliés par une lame de contact mobile 60, apte à être déplacée pour établir ou interrompre le passage de courant électrique par actionnement d'un levier 62.These connection elements are connected by a movable contact blade 60, able to be moved to establish or interrupt the passage of electrical current by actuation of a lever 62.

Chaque contact auxiliaire est constitué d'un contact auxiliaire fixe 64 et d'un contact auxiliaire mobile associé à la lame de contact mobile 60.Each auxiliary contact consists of a fixed auxiliary contact 64 and a mobile auxiliary contact associated with the movable contact blade 60.

Le levier 62 est actionné par le passage de courant dans les bobines respectives de l'actionneur électromagnétique et est adapté à prendre trois positions correspondant aux états des bobines appelés « marche avant », « marche arrière », « position neutre ou OFF »The lever 62 is actuated by the passage of current in the respective coils of the electromagnetic actuator and is adapted to take three positions corresponding to the states of the coils called "forward", "reverse", "neutral position or OFF"

La lame de contact mobile 60 est apte à être enfichée dans un élément de support 66 qui est mécaniquement lié au levier 62 et est mis en mouvement par ce levier.The movable contact blade 60 is adapted to be plugged into a support member 66 which is mechanically connected to the lever 62 and is moved by this lever.

La figure 5 illustre le module 14 de commande après fixation des éléments de connexion 46A, 48A, 48B, 50A, 52A, 52B, et des ensembles vis 70 et écrou 74 pour la connexion de câbles électriques externes dans les bornes de contact 22A, 24A, 24B, 26A, 28A, 28B respectives.The figure 5 illustrates the control module 14 after fixing the connection elements 46A, 48A, 48B, 50A, 52A, 52B, and screw assemblies 70 and nut 74 for the connection of external electrical cables in the contact terminals 22A, 24A, 24B, 26A, 28A, 28B respectively.

La figure 6 illustre schématiquement le fonctionnement des interrupteurs 34A, 34B correspondant aux contacts auxiliaires en fonction du sens du courant électrique dans les bobines électromagnétiques 76, 78 de l'actionneur électromagnétique 40.The figure 6 schematically illustrates the operation of the switches 34A, 34B corresponding to the auxiliary contacts as a function of the direction of the electric current in the electromagnetic coils 76, 78 of the electromagnetic actuator 40.

Le premier sens du courant noté S1 sur la figure entraîne le déplacement de la lame de contact mobile 60 de manière à fermer l'interrupteur 34A, alors que le sens de courant noté S2 sur la figure entraîne le déplacement de la lame de contact mobile 60 de manière à fermer l'interrupteur 34B.The first direction of the current noted S1 in the figure causes the displacement of the movable contact blade 60 so as to close the switch 34A, while the current direction noted S2 in the figure causes the displacement of the movable contact blade 60 so as to close the switch 34B.

La figure 7 illustre un bloc 80 de contacts de puissance faisant partie du module 12 de commutation électrique de puissance, et un porte contact mobile 82, apte à former, avec le bloc 80 de contacts de puissance, le module 12 de commutation électrique de puissance.The figure 7 illustrates a block 80 of power contacts forming part of the electrical power switching module 12, and a movable contact holder 82, able to form, with the block 80 of power contacts, the power switch module 12.

Lorsque le montage des éléments du module 12 de commutation électrique de puissance est réalisé, un dispositif de commutation électrique 10 tel que représenté à la figure 8 est obtenu. Dans cette figure, le dispositif 10 est représenté sans les capots de séparation des ensembles des bornes de commande, de puissance et de contrôle.When the elements of the electrical power switching module 12 are mounted, an electrical switching device 10 as shown in FIG. figure 8 is obtained. In this figure, the device 10 is shown without the separation caps of the sets of control terminals, power and control.

Le porte contact mobile 82 comporte un élément de fixation 84 apte à être positionné sur un élément de support mécaniquement lié au levier 62.The movable contact holder 82 comprises a fixing element 84 adapted to be positioned on a support element mechanically connected to the lever 62.

Le bloc de contacts de puissance 80 comprend des premiers contacts fixes d'entrée 86A, 86B, 86C, des deuxièmes contacts fixes d'entrée 88A, 88B, 88C, ainsi que des premiers contacts fixes de sortie 90A, 90B, 90C et des deuxièmes contacts fixes de sortie 92A, 92B, 92C.The power contact block 80 includes first fixed input contacts 86A, 86B, 86C, second fixed input contacts 88A, 88B, 88C, as well as first fixed output contacts 90A, 90B, 90C and second fixed output contacts 92A, 92B, 92C.

La première borne de contact d'entrée 18A est électriquement liée au premier contact fixe d'entrée 86A et au deuxième contact fixe d'entrée 88A, et la première borne de sortie 20A est électriquement liée au premier contact fixe de sortie 90A et au deuxième contact fixe de sortie 92A.The first input contact terminal 18A is electrically connected to the first input fixed contact 86A and the second input fixed contact 88A, and the first terminal output 20A is electrically connected to the first fixed output contact 90A and the second fixed output contact 92A.

Il en est de même pour les deuxième et troisième bornes de contact d'entrée 18B, 18C et de sortie 20B, 20C.It is the same for the second and third input contact terminals 18B, 18C and output 20B, 20C.

Le porte contact mobile 82 comprend des contacts mobiles 94A, 94B, 94C, aptes à être déplacés en translation par le levier 62 entraîné par l'actionneur électromagnétique.The movable contact holder 82 comprises movable contacts 94A, 94B, 94C, able to be displaced in translation by the lever 62 driven by the electromagnetic actuator.

Ainsi, lorsque le porte-contact mobile 82 est positionné comme montré en figure 8 vis-à-vis des contacts fixes respectifs, le déplacement des contacts mobiles est apte à réaliser une connexion ou une isolation entre contacts fixes respectifs.Thus, when the movable contact carrier 82 is positioned as shown in FIG. figure 8 relative to the respective fixed contacts, the displacement of the movable contacts is able to make a connection or isolation between respective fixed contacts.

Claims (7)

  1. Electrical switching device (10) comprising:
    - an electrical power switching module (12), said electrical power switching module (12) comprising a block (80) of three input terminals (18A, 18B, 18C) and three output terminals (20A, 20B, 20C), each input or output terminal being connected to a fixed contact (86A, 86B, 86C, 88A, 88B, 88C, 90A, 90B, 90C, 92A, 92B, 92C) of an electrical switch further comprising a movable contact (94A, 94B, 94C), capable of switching between an open position and a closed position according to a position of the movable contact relative to the fixed contact, a said movable contact being capable of being displaced by an electromagnetic drive device (40),
    - a command module (14) comprising a set of command terminals formed of at least one command input terminal (22A) and at least one command output terminal (24A, 24B), the command module (14) comprising said electromagnetic drive device (40) capable of being supplied by said command terminals in order to control a position of one of said movable contacts,
    characterised in that it further comprises:
    - a control module (16) comprising an auxiliary input contact terminal (26A) and two auxiliary output contact terminals (28A, 28B), said auxiliary input contact terminal (26A) being common to the two auxiliary output contact terminals (28A, 28B),
    said power module (12) being detachable separately from the command module (14) and the control module (16).
  2. Switching device (10) according to claim 1, characterised in that the set of command terminals (22A, 24A, 24B) and the set of control terminals (26A, 28A, 28B) are mounted on either side of the block (80) of terminals of the electrical power switching module (12).
  3. Switching device (10) according to claim 2, characterised in that it is arranged in a housing (42), and in that the set of command terminals (22A, 24A, 24B), the set of control terminals (26A, 28A, 28B) and the block (80) of terminals (18A, 18B, 18C, 20A, 20B, 20C) of the electrical power switching module (12) are mounted on the front face (17) of said housing (42).
  4. Switching device (10) according to claim 3, characterised in that each of said set of command terminals, set of control terminals and block of terminals of the electrical power switching module (12) is protected by a protective cover having a distinguishing visual indication.
  5. Switching device (10) according to any one of claims 1 to 4, characterised in that said electromagnetic drive device (40) comprises two electromagnetic coils (76, 78), and in that the command module (14) comprises a common input command terminal (22A) capable of supplying said electromagnetic coils (76, 78).
  6. Switching device (10) according to claim 5, characterised in that it comprises two electrical coupling elements (44A, 44B) capable of forming a fixed input command contact of a first electromagnetic coil and a fixed input command contact of a second electromagnetic coil, respectively, and in that it comprises a connection element (46A) comprising two connection orifices (56A, 56B) adapted to cooperate with said electrical coupling elements (44A, 44B) and of forming a common input contact terminal for supplying said first and second electromagnetic coils.
  7. Switching device (10) according to any one of claims 1 to 6, characterised in that the control module (16) comprises two switches (34A, 34B), each switch being capable of switching between an open position and a closed position, each switch comprising a fixed input contact connected to said common auxiliary input contact terminal (26A) and a fixed output contact connected to a said auxiliary output contact terminal (28A, 28B), said fixed input contact and a fixed output contact being capable of being connected electrically by a movable contact carried by a movable contact strip (60), said movable contact strip (60) being fixed in a support element (66) capable of being displaced by the electromagnetic drive device.
EP14809626.6A 2013-12-09 2014-12-08 Electrical switching device Active EP3080828B1 (en)

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FR1362322A FR3014595B1 (en) 2013-12-09 2013-12-09 ELECTRICAL SWITCHING DEVICE
PCT/EP2014/076865 WO2015086517A1 (en) 2013-12-09 2014-12-08 Electrical switching device

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US9583289B2 (en) 2017-02-28
FR3014595B1 (en) 2016-02-05
FR3014595A1 (en) 2015-06-12
CN105993057A (en) 2016-10-05
JP2016539468A (en) 2016-12-15
EP3080828A1 (en) 2016-10-19
US20160293367A1 (en) 2016-10-06
WO2015086517A1 (en) 2015-06-18
CN105993057B (en) 2018-12-28
JP6404350B2 (en) 2018-10-10

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