EP2291888A1 - Device for secure electrical connection - Google Patents

Device for secure electrical connection

Info

Publication number
EP2291888A1
EP2291888A1 EP09797551A EP09797551A EP2291888A1 EP 2291888 A1 EP2291888 A1 EP 2291888A1 EP 09797551 A EP09797551 A EP 09797551A EP 09797551 A EP09797551 A EP 09797551A EP 2291888 A1 EP2291888 A1 EP 2291888A1
Authority
EP
European Patent Office
Prior art keywords
base
plug
actuator
locking
pilot circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09797551A
Other languages
German (de)
French (fr)
Other versions
EP2291888B1 (en
Inventor
Mounim Houir Alami
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.)
Societe dExploitation des Procedes Marechal SEPM SA
Original Assignee
Societe dExploitation des Procedes Marechal SEPM SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Societe dExploitation des Procedes Marechal SEPM SA filed Critical Societe dExploitation des Procedes Marechal SEPM SA
Publication of EP2291888A1 publication Critical patent/EP2291888A1/en
Application granted granted Critical
Publication of EP2291888B1 publication Critical patent/EP2291888B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/71—Contact members of coupling parts operating as switch, e.g. linear or rotational movement required after mechanical engagement of coupling part to establish electrical connection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/64—Means for preventing incorrect coupling
    • H01R13/641—Means for preventing incorrect coupling by indicating incorrect coupling; by indicating correct or full engagement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing

Definitions

  • the invention relates to a secure electrical connection device, more particularly for high power currents.
  • the electrical connection devices comprise in known manner an active base and a plug each provided with at least one power contact which are arranged to be connected together when the plug and said base are coupled in the connection position.
  • a low power parallel circuit hereinafter referred to as a pilot circuit
  • a pilot circuit which is provided with pilot contacts arranged to control by closing and respectively opening said circuit, an apparatus for switching on or off the power contact (s) of the base.
  • the document EP-0 185 828 describes an outlet of this type which furthermore comprises, for closing and opening the pilot circuit, an actuator fitted on the base, while a device for locking and unlocking the plug in the base in the connection position is provided and comprises conjugated locking means arranged on the plug and respectively the base.
  • the actuator which acts directly on the pilot contacts also serves as locking means of the plug and the base.
  • the invention proposes an electrical connection device provided, as mentioned above, with a pilot circuit, an actuator and a device for locking and unlocking the plug in the base, but which is notably remarkable for the locking means of the stand separate from the actuator is movably mounted and has at least one locking position and one unlocking position, the actuator of the pilot circuit being arranged to block said locking means of the base in its locking position when said pilot circuit is closed, and unlock the locking means when the circuit pilot is open, while the locking means of the base prevents any maneuver coupling the plug and the base or separation of the latter once coupled, when said locking means is locked in its locking position by said actuator.
  • the pilot circuit comprises two pilot contacts fixed on the base and a shunt rotatably mounted on the base, while the actuator comprises a means which is integral in rotation with the shunt and which has at least one position. in which the two pilot contacts close the pilot circuit by contact on the shunt and at least one position in which at least one of the pilot contacts is not in contact on the shunt, the pilot circuit being then open.
  • the actuator acts on the shunt and not directly on the pilot contacts which are fixed, unlike the known art described in the aforementioned document EP-0 185 828.
  • the locking means of the base comprises a hook movable between a locking position and an unlocked position, and which is integral with an actuating button, while the locking means of the plug comprises a groove intended to come receiving said hook in the locking position obtained at the end of coupling of the plug and the base, while an elastic means is provided to bias the hook to its locking position.
  • said hook has a shape suitable for being biased by a portion of the plug to allow it to be housed by elasticity in the groove of said plug without the need to maneuver the actuating button .
  • a rotary shunt and a locking means in the form of a hook and a button the actuator means integral in rotation of the shunt is a rotating ring which is provided with a skirt passing under a portion of the hook actuation button to lock it in the locking position while a notch is provided in said skirt to allow the mobility of said actuating button to the unlocked position of the hook, this notch being provided at a location of the skirt so that said notch is positioned under said actuating button when the ring is in an open position of the pilot circuit.
  • a locking means of the actuator is further provided to lock it in its open position of the pilot circuit, while said locking means is arranged to be driven in a release position by a portion of the plug when the latter is in the connection position, so that the actuator can be operated in its closed position of the pilot circuit after coupling the plug in the base and connecting the power contact (s) of the plug and the base.
  • the actuator comprises a rotary ring and the locking means of said actuator is in the form of at least one movable rod which is biased by a resilient means towards its locking position in which said rod comes introducing into a portion of the actuator to lock said ring in rotation while the rod can be driven to its unlocking position by a portion of the end of the plug during its coupling with the base.
  • the movable blocking rod passes through a circular arc slot formed in the actuator and has a shoulder intended to come into a suitable housing of the actuator to lock it so that the stem does not interfere with the rotation of the actuator when the shoulder is outside said housing.
  • FIG. 1 shows in perspective a base and a plug of a connection device according to one embodiment of the invention, the two elements being shown separately before coupling and connection and with sections of the outer casings of the plug and the basement ;
  • - Figure 2 shows the base and the plug of Figure 1 towards the end of their coupling in the connection position;
  • - Figure 3 corresponds to Figure 2, in another view and without the cuts of the casings of the plug and the base;
  • Figure 4 corresponds to Figure 2 after total coupling, the actuator having been operated in a closed position of the pilot circuit;
  • Figure 5 corresponds to Figure 4, in another view and without the cuts of the casings of the plug and the base;
  • Figure 6 shows the base of Figure 1 in the same position but with another section plane of the outer casing and further with a section of the actuator.
  • FIG. 7 is an end view of the rear face of the base with a portion in section to view the interior.
  • the drawings show an electrical connection device formed of a base 1 and a plug 2 each provided with at least one power contact (not visible in the drawings).
  • it is, for example, a unipolar connection device, that is to say with a single power contact in the plug and the base (in the form for example of a contact tubular for the plug and a flexible blade for the base).
  • the contacts of the plug and the base are arranged in blocks 3 and 4 respectively of the plug and the base, which are surrounded by an outer casing respectively 5 and 6.
  • the power contact (s) of the base are energized by a device (not shown) which is controlled by a pilot circuit.
  • the low power pilot circuit is for example intended to supply the coil of a contactor which opens or closes the power circuit supplying the base.
  • the pilot circuit is constituted here by two pilot contacts 7 and 8 arranged on the base and that can be seen in Figures 3 and 5.
  • the pilot contacts 7 and 8 form a circuit which can be closed by a shunt
  • the coupling of the plug in the base can be effected by various maneuvers which here comprise at least one translational movement to move from the position of Figure 1 to the position of Figure 2.
  • the plug and the base comprise conjugate locking means in connection position which are here in the form of a hook 11 (FIGS.
  • the hook 11 is also actuable by a button 12 integral with said hook to its unlocking position against said elastic means mentioned above.
  • the button 12 is isolated from the outside by a flexible membrane 13 (FIGS. 1, 2, 4, 6).
  • the conjugate locking means arranged on the plug is here in the form of a groove 14 formed at the end of the housing 5 of said plug.
  • the front end of the casing 5 of the plug rests on the hook 11 optionally provided for this purpose with an oblique part forming a ramp so that said hook 11 s pushes in while driving the button 12 with him as shown in FIG. 2 (one could nevertheless press the button 12 for this operation).
  • Unlocking can only be done by exerting a pressure on the button 12.
  • the actuator 10 comprises a rotary actuating ring 10a and a skirt 10b integral or in one piece with said ring which extends into the casing 6 of the base under a portion of the button 12, as shown clearly in FIGS. 2, 4 and 6.
  • the ring 10a of the actuator is integral with the shunt 9 so that in the angular position thereof shown in Figures 1, 2, 3 and 6, the pilot circuit 7, 8 is open as explained above.
  • a mark 15, by example the sign "O”, mentioned on the ring 10a is in front of the button 12 as shown well in Figures 1 and 2.
  • the skirt 10b of the actuator 10 has an indentation 16, in the form of a semicircle, arranged in the position of FIGS. 1, 2, 3 and 6 just below the knob 12 thus allowing in this position a freedom of movement button 12.
  • a rod 18 is arranged in the base and passes through a slot 19 in an arc (FIG. 7) formed in the actuator 10.
  • the rod 18 is urged by a spring 20 ( Figure 6) in a locking position in which a shoulder 21 blocks the rotation of the ring 10a by coming into a suitable housing of the actuator.
  • This rod 18 can be urged by the end edge of the housing 5 of the plug to meet the spring 20 to unlock the rotation of the ring 10a.
  • the plug 1 and the base 2 of the device are initially in the position of FIGS. 1, 2, 3, 6 and 7.
  • the pilot circuit 7, 8 is open and the ring 10a is locked in rotation by the rod. 18 (FIG. 6) so that the base can not be energized since said pilot circuit can only be closed after unlocking the actuator ring 10a by means of the plug 1.
  • this locking ring 10a is an additional security as will be explained below.
  • the separation of the base and the plug therefore requires two successive manual operations, namely: rotation of the actuator ring and actuation of the locking knob.
  • rotation of the actuator ring In the absence of locking of the actuator 10 by the rod 18, it is however understood that if the base is under tension after rotation of the ring 10a, the skirt 10b prevents any actuation of the button 12 and the hook 11 which remain in position locking preventing any coupling of the plug and the base and therefore any connection in charge of the power contacts.
  • the rod 18 which prevents the power of the base when the plug is not inserted into the base, also ensures that the power of the base can be made only if the plug is in the complete position of connection power contacts.
  • the device according to the invention thus ensures an impossibility of connection and disconnection of the power contacts when the base is energized.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The invention relates to an electrical connection device formed of an active base (2) and a plug (1), pilot contacts of a pilot circuit being provided for controlling an apparatus by switching the same on or off, respectively, the power contacts of the base by means of an actuator (10) set up on the base while a device (11, 12; 14), for locking and unlocking the plug into the base in a connection position, is also provided. The device according to the invention is particularly remarkable in that a means (11; 12) for locking the base separately from the actuator (10) is movably mounted, the actuator (10) of the pilot circuit being set up to secure said base locking means in the locked position thereof when said pilot circuit is closed and release the locking means when the pilot circuit is open, while the base locking means prevents all operations for coupling the plug and the base, or for separating the latter once coupled, when said locking means is secured in the locked position thereof by said actuator (10).

Description

Dispositif de connexion électrique sécurisé. Secure electrical connection device.
L'invention concerne un dispositif de connexion électrique sécurisé, plus particulièrement destiné aux courants de forte puissance. Les dispositifs de connexion électrique comportent de manière connue un socle actif et une fiche munis chacun d'au moins un contact de puissance qui sont aménagés pour être connectés entre eux lorsque la fiche et ledit socle sont accouplés en position de connexion.The invention relates to a secure electrical connection device, more particularly for high power currents. The electrical connection devices comprise in known manner an active base and a plug each provided with at least one power contact which are arranged to be connected together when the plug and said base are coupled in the connection position.
Dans les dispositifs de connexion plus particulièrement pour des courants de forte puissance, il est généralement prévu un circuit parallèle de faible puissance, dénommé ci-après circuit pilote, qui est muni de contacts pilotes aménagés pour commander par la fermeture et respectivement l'ouverture dudit circuit, un appareil de mise sous tension ou respectivement hors tension du ou des contacts de puissance du socle. De la sorte, on cherche d'une part, à ne pouvoir réaliser la fermeture du circuit pilote qu'après la connexion des contacts de puissance et au contraire d'autre part, à forcer l'ouverture dudit circuit pilote avant la déconnexion des contacts de puissance, de telle sorte que ces deux opérations de connexion et de déconnexion se fassent hors tension. II est en effet souvent impératif de rapprocher ou séparer les contacts de puissance hors tension de manière notamment à éviter les arcs électriques, pour n'établir la mise sous tension que lorsque lesdits contacts sont en position de connexion électrique.In connection devices, more particularly for high power currents, a low power parallel circuit, hereinafter referred to as a pilot circuit, is generally provided, which is provided with pilot contacts arranged to control by closing and respectively opening said circuit, an apparatus for switching on or off the power contact (s) of the base. In this way, one seeks on the one hand, to be able to realize the closing of the pilot circuit after the connection of the power contacts and secondly on the other hand, to force the opening of said pilot circuit before the disconnection of the contacts of power, so that these two connection and disconnection operations are de-energized. It is indeed often imperative to bring or separate the power off power contacts in particular to avoid arcing, to establish the power up only when said contacts are in the electrical connection position.
Le document EP-O 185 828 décrit une prise de courant de ce type qui comporte en outre pour la fermeture et l'ouverture du circuit pilote, un actionneur aménagé sur le socle, tandis qu'un dispositif de verrouillage et de déverrouillage de la fiche dans le socle en position de connexion est prévu et comporte des moyens de verrouillage conjugués aménagés sur la fiche et respectivement le socle.The document EP-0 185 828 describes an outlet of this type which furthermore comprises, for closing and opening the pilot circuit, an actuator fitted on the base, while a device for locking and unlocking the plug in the base in the connection position is provided and comprises conjugated locking means arranged on the plug and respectively the base.
Toutefois, dans ce dispositif connu de connexion par rotation des contacts de puissance, l'actionneur qui agit directement sur les contacts pilotes sert aussi de moyen de verrouillage de la fiche et du socle.However, in this known device for connection by rotation of the power contacts, the actuator which acts directly on the pilot contacts also serves as locking means of the plug and the base.
L'invention propose un dispositif de connexion électrique muni, comme mentionné ci-avant, d'un circuit pilote, d'un actionneur et d'un dispositif de verrouillage et de déverrouillage de la fiche dans le socle, mais qui est notamment remarquable en ce que le moyen de verrouillage du socle distinct de l'actionneur est monté mobile et possède au moins une position de verrouillage et une position de déverrouillage, l'actionneur du circuit pilote étant aménagé pour bloquer ledit moyen de verrouillage du socle dans sa position de verrouillage lorsque ledit circuit pilote est fermé, et débloquer le moyen de verrouillage lorsque le circuit pilote est ouvert, tandis que le moyen de verrouillage du socle empêche toute manœuvre d'accouplement de la fiche et du socle ou de séparation de ces derniers une fois accouplés, lorsque ledit moyen de verrouillage est bloqué dans sa position de verrouillage par ledit actionneur.The invention proposes an electrical connection device provided, as mentioned above, with a pilot circuit, an actuator and a device for locking and unlocking the plug in the base, but which is notably remarkable for the locking means of the stand separate from the actuator is movably mounted and has at least one locking position and one unlocking position, the actuator of the pilot circuit being arranged to block said locking means of the base in its locking position when said pilot circuit is closed, and unlock the locking means when the circuit pilot is open, while the locking means of the base prevents any maneuver coupling the plug and the base or separation of the latter once coupled, when said locking means is locked in its locking position by said actuator.
Selon un mode de réalisation, le circuit pilote comporte deux contacts pilotes fixés sur le socle et un shunt monté de manière rotatif sur le socle, tandis que l'actionneur comporte un moyen qui est solidaire en rotation du shunt et qui possède au moins une position dans laquelle les deux contacts pilotes ferment le circuit pilote par contact sur le shunt et au moins une position dans laquelle au moins l'un des contacts pilotes n'est pas en contact sur le shunt, le circuit pilote étant alors ouvert.According to one embodiment, the pilot circuit comprises two pilot contacts fixed on the base and a shunt rotatably mounted on the base, while the actuator comprises a means which is integral in rotation with the shunt and which has at least one position. in which the two pilot contacts close the pilot circuit by contact on the shunt and at least one position in which at least one of the pilot contacts is not in contact on the shunt, the pilot circuit being then open.
Dans ce mode de réalisation, l'actionneur agit sur le shunt et non directement sur les contacts pilotes qui sont fixes contrairement à l'art connu décrit dans le document précité EP-O 185 828.In this embodiment, the actuator acts on the shunt and not directly on the pilot contacts which are fixed, unlike the known art described in the aforementioned document EP-0 185 828.
Par exemple, le moyen de verrouillage du socle comporte un crochet mobile entre une position de verrouillage et une position déverrouillée, et qui est solidaire d'un bouton d'actionnement, tandis que le moyen de verrouillage de Ia fiche comporte une gorge destinée à venir recevoir ledit crochet en position de verrouillage obtenue en fin d'accouplement de la fiche et du socle, tandis qu'un moyen élastique est prévu pour solliciter le crochet vers sa position de verrouillage.For example, the locking means of the base comprises a hook movable between a locking position and an unlocked position, and which is integral with an actuating button, while the locking means of the plug comprises a groove intended to come receiving said hook in the locking position obtained at the end of coupling of the plug and the base, while an elastic means is provided to bias the hook to its locking position.
Dans ce cas par exemple, ledit crochet présente une forme appropriée pour être sollicité par une partie de la fiche afin de lui permettre de venir se loger par élasticité dans la gorge de ladite fiche sans qu'il soit nécessaire de manœuvrer le bouton d'actionnement.In this case for example, said hook has a shape suitable for being biased by a portion of the plug to allow it to be housed by elasticity in the groove of said plug without the need to maneuver the actuating button .
Avantageusement, selon un mode de réalisation pourvu, comme précisé ci- avant, d'un shunt rotatif et d'un moyen de verrouillage sous forme d'un crochet et d'un bouton, le moyen de l'actionneur solidaire en rotation du shunt est une bague rotative qui est munie d'une jupe passant sous une partie du bouton d'actionnement du crochet pour bloquer celui-ci en position de verrouillage tandis qu'une échancrure est prévue dans ladite jupe pour permettre la mobilité dudit bouton d'actionnement vers la position déverrouillée du crochet, cette échancrure étant ménagée à un endroit de la jupe de manière telle que ladite échancrure est positionnée sous ledit bouton d'actionnement lorsque la bague est dans une position d'ouverture du circuit pilote. Pour sécuriser encore le dispositif, selon un mode de réalisation, un moyen de verrouillage de l'actionneur est en outre prévu pour bloquer celui-ci dans sa position d'ouverture du circuit pilote, tandis que ledit moyen de verrouillage est aménagé pour être entraîné dans une position de déblocage par une partie de la fiche lorsque celle-ci est en position de connexion, de telle sorte que l'actionneur ne peut être manœuvré dans sa position de fermeture du circuit pilote qu'après accouplement de la fiche dans le socle et connexion du ou des contacts de puissance de la fiche et du socle.Advantageously, according to an embodiment provided, as specified above, a rotary shunt and a locking means in the form of a hook and a button, the actuator means integral in rotation of the shunt is a rotating ring which is provided with a skirt passing under a portion of the hook actuation button to lock it in the locking position while a notch is provided in said skirt to allow the mobility of said actuating button to the unlocked position of the hook, this notch being provided at a location of the skirt so that said notch is positioned under said actuating button when the ring is in an open position of the pilot circuit. To further secure the device, according to one embodiment, a locking means of the actuator is further provided to lock it in its open position of the pilot circuit, while said locking means is arranged to be driven in a release position by a portion of the plug when the latter is in the connection position, so that the actuator can be operated in its closed position of the pilot circuit after coupling the plug in the base and connecting the power contact (s) of the plug and the base.
Par exemple dans ce cas, l'actionneur comporte une bague rotative et Ie moyen de verrouillage dudit actionneur se présente sous la forme d'au moins une tige mobile qui est sollicitée par un moyen élastique vers sa position de verrouillage dans laquelle ladite tige vient s'introduire dans une partie de l'actionneur pour bloquer ladite bague en rotation tandis que la tige peut être entraînée vers sa position de déblocage par une partie de l'extrémité de la fiche au cours de son accouplement avec le socle. De manière particulière par exemple, la tige mobile de blocage traverse une lumière en arc de cercle ménagée dans l'actionneur et possède un épaulement destiné à venir dans un logement approprié de l'actionneur pour bloquer celui-ci de telle sorte que la tige ne gêne pas la rotation de l'actionneur lorsque l'épaulement est en dehors dudit logement. Ainsi, avec le dernier mode de réalisation précité, on comprend qu'outre les sécurités obtenues pour effectuer la connexion et la déconnexion des contacts de puissance hors tension, on interdit toute mise sous tension du socle tant que la fiche n'est pas complètement connectée.For example in this case, the actuator comprises a rotary ring and the locking means of said actuator is in the form of at least one movable rod which is biased by a resilient means towards its locking position in which said rod comes introducing into a portion of the actuator to lock said ring in rotation while the rod can be driven to its unlocking position by a portion of the end of the plug during its coupling with the base. Specifically, for example, the movable blocking rod passes through a circular arc slot formed in the actuator and has a shoulder intended to come into a suitable housing of the actuator to lock it so that the stem does not interfere with the rotation of the actuator when the shoulder is outside said housing. Thus, with the last embodiment mentioned above, it is understood that in addition to the security obtained to make the connection and disconnection of the power contacts off, it is forbidden to power on the base until the plug is completely connected. .
L'invention sera bien comprise à la lecture de la description qui va suivre et qui se réfère aux dessins annexés dans lesquels :The invention will be better understood on reading the description which follows and which refers to the appended drawings in which:
- la figure 1 montre en perspective un socle et une fiche d'un dispositif de connexion selon un mode de réalisation de l'invention, les deux éléments étant représentés séparément avant accouplement et connexion et avec des coupes des carters extérieurs de la fiche et du socle ;- Figure 1 shows in perspective a base and a plug of a connection device according to one embodiment of the invention, the two elements being shown separately before coupling and connection and with sections of the outer casings of the plug and the basement ;
- la figure 2 montre le socle et la fiche de la figure 1 vers la fin de leur accouplement en position de connexion ; - la figure 3 correspond à la figure 2, sous une autre vue et sans les coupes des carters de la fiche et du socle ;- Figure 2 shows the base and the plug of Figure 1 towards the end of their coupling in the connection position; - Figure 3 corresponds to Figure 2, in another view and without the cuts of the casings of the plug and the base;
- la figure 4 correspond à la figure 2 après accouplement total, l'actionneur ayant été manoeuvré dans une position de fermeture du circuit pilote ;- Figure 4 corresponds to Figure 2 after total coupling, the actuator having been operated in a closed position of the pilot circuit;
- la figure 5 correspond à la figure 4, sous une autre vue et sans les coupes des carters de la fiche et du socle ;- Figure 5 corresponds to Figure 4, in another view and without the cuts of the casings of the plug and the base;
- la figure 6 montre le socle de la figure 1 dans la même position mais avec un autre plan de coupe du carter extérieur et en outre avec une coupe de l'actionneur.- Figure 6 shows the base of Figure 1 in the same position but with another section plane of the outer casing and further with a section of the actuator.
- la figure 7 est une vue en bout de la face arrière du socle avec une partie en coupe pour visualiser l'intérieur.- Figure 7 is an end view of the rear face of the base with a portion in section to view the interior.
Les dessins montrent un dispositif de connexion électrique formé d'un socle 1 et d'une fiche 2 munis chacun d'au moins un contact de puissance (pas visibles sur les dessins). Dans l'exemple représenté, il s'agit, par exemple, d'un dispositif de connexion unipolaire, c'est-à-dire avec un seul contact de puissance dans la fiche et le socle (sous forme par exemple d'un contact tubulaire pour la fiche et d'une lame flexible pour le socle).The drawings show an electrical connection device formed of a base 1 and a plug 2 each provided with at least one power contact (not visible in the drawings). In the example shown, it is, for example, a unipolar connection device, that is to say with a single power contact in the plug and the base (in the form for example of a contact tubular for the plug and a flexible blade for the base).
Les contacts de la fiche et du socle sont aménagés dans des blocs 3 et 4 respectivement de la fiche et du socle, lesquels sont entourés d'un carter extérieur respectivement 5 et 6.The contacts of the plug and the base are arranged in blocks 3 and 4 respectively of the plug and the base, which are surrounded by an outer casing respectively 5 and 6.
Le ou les contacts de puissance du socle sont mis sous tension par un appareil non représenté qui est commandé par un circuit pilote. Le circuit pilote de faible puissance est par exemple destiné à alimenter la bobine d'un contacteur qui ouvre ou ferme le circuit de puissance alimentant le socle. Dans le mode de réalisation représenté, le circuit pilote est constitué ici par deux contacts pilotes 7 et 8 aménagés sur le socle et que l'on peut voir sur les figures 3 et 5.The power contact (s) of the base are energized by a device (not shown) which is controlled by a pilot circuit. The low power pilot circuit is for example intended to supply the coil of a contactor which opens or closes the power circuit supplying the base. In the embodiment shown, the pilot circuit is constituted here by two pilot contacts 7 and 8 arranged on the base and that can be seen in Figures 3 and 5.
Les contacts pilotes 7 et 8 forment un circuit qui peut être fermé par un shuntThe pilot contacts 7 and 8 form a circuit which can be closed by a shunt
9 sous forme ici d'une simple barrette. Sur la figure 3, on peut voir que le circuit pilote est ouvert, le shunt 9 ne mettant pas en connexion électrique les contacts pilotes tandis que dans la position de la figure 5, le circuit pilote est fermé par le shunt 9, l'actionnement du shunt étant commandé par un actionneur 10 dont il sera question plus en détail ci-après.9 in the form here of a simple bar. In FIG. 3, it can be seen that the pilot circuit is open, the shunt 9 not putting the pilot contacts in electrical connection. while in the position of Figure 5, the driver circuit is closed by the shunt 9, the actuation of the shunt being controlled by an actuator 10 which will be discussed in more detail below.
L'accouplement de la fiche dans le socle peut s'effectuer par diverses manœuvres qui comportent ici au moins un mouvement de translation pour passer de la position de la figure 1 à la position de la figure 2.The coupling of the plug in the base can be effected by various maneuvers which here comprise at least one translational movement to move from the position of Figure 1 to the position of Figure 2.
La fiche et le socle comportent des moyens conjugués de verrouillage en position de connexion qui se présentent ici sous la forme d'un crochet 11 (figures 1 , 2,The plug and the base comprise conjugate locking means in connection position which are here in the form of a hook 11 (FIGS.
4 et 6) aménagé dans le socle et qui est sollicité par un moyen élastique (non visible sur les dessins) vers sa position de verrouillage, ledit moyen élastique étant par exemple un ressort disposé sous le crochet.4 and 6) arranged in the base and which is biased by an elastic means (not visible in the drawings) to its locking position, said resilient means being for example a spring disposed under the hook.
Le crochet 11 est par ailleurs actionnable par un bouton 12 solidaire dudit crochet vers sa position de déverrouillage à rencontre dudit moyen élastique précité.The hook 11 is also actuable by a button 12 integral with said hook to its unlocking position against said elastic means mentioned above.
De plus dans cet exemple, le bouton 12 est isolé de l'extérieur par une membrane souple 13 (figures 1 , 2, 4, 6).In addition, in this example, the button 12 is isolated from the outside by a flexible membrane 13 (FIGS. 1, 2, 4, 6).
Le moyen conjugué de verrouillage aménagé sur la fiche se présente ici sous la forme d'une gorge 14 ménagée à l'extrémité du carter 5 de ladite fiche.The conjugate locking means arranged on the plug is here in the form of a groove 14 formed at the end of the housing 5 of said plug.
Lorsque la fiche est introduite dans le carter 6 du socle, l'extrémité frontale du carter 5 de la fiche vient s'appuyer sur le crochet 11 muni éventuellement à cet effet d'une partie oblique formant rampe de telle sorte que ledit crochet 11 s'enfonce en entraînant avec lui le bouton 12 comme le montre la figure 2 (on pourrait toutefois appuyer sur le bouton 12 pour cette opération).When the plug is inserted into the casing 6 of the base, the front end of the casing 5 of the plug rests on the hook 11 optionally provided for this purpose with an oblique part forming a ramp so that said hook 11 s pushes in while driving the button 12 with him as shown in FIG. 2 (one could nevertheless press the button 12 for this operation).
On comprend qu'à la fin de l'accouplement, position dans laquelle les contacts de puissance du socle et de la fiche sont connectés entre eux, le crochet 11 remonte dans la gorge 14 verrouillant ainsi la fiche dans le socle comme le montre la figure 4.It is understood that at the end of the coupling, position in which the power contacts of the base and the plug are connected together, the hook 11 goes up in the groove 14 thus locking the plug in the base as shown in FIG. 4.
Le déverrouillage ne peut alors s'effectuer qu'en exerçant une pression sur le bouton 12.Unlocking can only be done by exerting a pressure on the button 12.
L'actionneur 10 comporte une bague d'actionnement rotative 10a et une jupe 10b solidaire ou d'une pièce avec ladite bague qui vient s'étendre dans le carter 6 du socle sous une partie du bouton 12 comme le montrent bien les figures 1 , 2, 4 et 6.The actuator 10 comprises a rotary actuating ring 10a and a skirt 10b integral or in one piece with said ring which extends into the casing 6 of the base under a portion of the button 12, as shown clearly in FIGS. 2, 4 and 6.
La bague 10a de l'actionneur est solidaire du shunt 9 de telle sorte que dans la position angulaire de celle-ci représentée sur les figures 1 , 2, 3 et 6, le circuit pilote 7, 8 est ouvert comme expliqué ci-avant. Pour repérer cette position, un repère 15, par exemple le signe « O », mentionné sur la bague 10a se trouve en face du bouton 12 comme le montrent bien les figures 1 et 2.The ring 10a of the actuator is integral with the shunt 9 so that in the angular position thereof shown in Figures 1, 2, 3 and 6, the pilot circuit 7, 8 is open as explained above. To locate this position, a mark 15, by example the sign "O", mentioned on the ring 10a is in front of the button 12 as shown well in Figures 1 and 2.
La jupe 10b de l'actionneur 10 présente une échancrure 16, en forme ici de demi-cercle, disposée dans la position des figures 1 , 2, 3 et 6 juste en dessous du bouton 12 permettant ainsi dans cette position une liberté de mouvement audit bouton 12.The skirt 10b of the actuator 10 has an indentation 16, in the form of a semicircle, arranged in the position of FIGS. 1, 2, 3 and 6 just below the knob 12 thus allowing in this position a freedom of movement button 12.
Si la bague 10a de l'actionneur 10 est tournée pour prendre la position des figures 4 et 5 jusqu'à amener ici un repère 17, par exemple le signe « I » mentionné sur ladite bague, juste en face du bouton 12, le shunt 9 (figure 5) ferme le circuit pilote 7, 8.If the ring 10a of the actuator 10 is rotated to take the position of Figures 4 and 5 to bring here a marker 17, for example the sign "I" mentioned on said ring, just opposite the button 12, the shunt 9 (FIG. 5) closes the pilot circuit 7, 8.
On remarque alors que dans cette position (figures 4 et 5) la jupe 10b bloque le bouton 12 qui ne peut pas être actionné vers la position de déverrouillage de la fiche et du socle.Note that in this position (Figures 4 and 5) the skirt 10b blocks the button 12 which can not be actuated to the unlocking position of the plug and the base.
Par ailleurs, comme le montrent bien les figures 6 et 7, une tige 18 est aménagée dans le socle et traverse une lumière 19 en arc de cercle (figure 7) ménagée dans l'actionneur 10.Moreover, as shown in FIGS. 6 and 7, a rod 18 is arranged in the base and passes through a slot 19 in an arc (FIG. 7) formed in the actuator 10.
La tige 18 est sollicitée par un ressort 20 (figure 6) dans une position de verrouillage dans laquelle un épaulement 21 vient bloquer la rotation de la bague 10a en venant dans un logement approprié de l'actionneur. Cette tige 18 peut être sollicitée par la tranche d'extrémité du carter 5 de la fiche à rencontre du ressort 20 afin de déverrouiller la rotation de la bague 10a.The rod 18 is urged by a spring 20 (Figure 6) in a locking position in which a shoulder 21 blocks the rotation of the ring 10a by coming into a suitable housing of the actuator. This rod 18 can be urged by the end edge of the housing 5 of the plug to meet the spring 20 to unlock the rotation of the ring 10a.
Suite à cette description, l'invention est facile à comprendre.Following this description, the invention is easy to understand.
La fiche 1 et le socle 2 du dispositif se présentent initialement dans la position des figures 1 , 2, 3, 6 et 7. Dans cette position, le circuit pilote 7, 8 est ouvert et Ia bague 10a est bloquée en rotation par la tige 18 (figure 6) de telle sorte que le socle ne peut pas être mis sous tension puisque ledit circuit pilote ne peut être fermé qu'après avoir déverrouillé la bague 10a de l'actionneur au moyen de la fiche 1.The plug 1 and the base 2 of the device are initially in the position of FIGS. 1, 2, 3, 6 and 7. In this position, the pilot circuit 7, 8 is open and the ring 10a is locked in rotation by the rod. 18 (FIG. 6) so that the base can not be energized since said pilot circuit can only be closed after unlocking the actuator ring 10a by means of the plug 1.
Toutefois, ce verrouillage de la bague 10a est une sécurité supplémentaire comme il sera expliqué ci-après.However, this locking ring 10a is an additional security as will be explained below.
Après accouplement de la fiche et du socle (figure 2) jusqu'à verrouiller les deux éléments grâce au crochet 11 qui vient dans la gorge 14 de la fiche, on comprend que les contacts de puissance sont connectés entre eux mais que le circuit pilote étant ouvert, le socle n'est pas sous tension. A la fin de l'accouplement, la tige 18 (figure 6) sollicitée par le carter 5 de la fiche, débloque la bague 10a qui peut alors être tournée pour fermer le circuit pilote comme mentionné ci-avant (figures 4 et 5) et mettre ainsi le socle sous tension.After coupling the plug and the base (FIG. 2) until the two elements are locked thanks to the hook 11 which comes into the groove 14 of the plug, it will be understood that the power contacts are connected to each other but that the pilot circuit being open, the base is not live. At the end of the coupling, the rod 18 (FIG. 6) biased by the casing 5 of the plug, unlocks the ring 10a which can then be turned to close the pilot circuit as mentioned above (FIGS. 4 and 5) and put the base in tension.
On comprend alors que les contacts de puissance sont d'abord connectés entre eux avant la mise sous tension du socle.It is then understood that the power contacts are first connected to each other before powering up the base.
Dans cette position de connexion des contacts de puissance, le socle étant en outre sous tension (figures 4 et 5), on constate que la jupe 10b de l'actionneur située sous le bouton 12 empêche son actionnement et donc toute séparation de la fiche et du socle du fait que le crochet 11 ne peut pas être dégagé de la gorge 14 de la fiche.In this connection position of the power contacts, the base being further energized (Figures 4 and 5), it is found that the skirt 10b of the actuator located under the knob 12 prevents its actuation and therefore any separation of the plug and of the base because the hook 11 can not be released from the groove 14 of the plug.
Il est donc impossible de déconnecter la fiche et le socle en charge, c'est-à- dire avec un socle sous tension.It is therefore impossible to disconnect the plug and the base in charge, that is to say with a base under power.
Pour déverrouiller la fiche et le socle il est d'abord nécessaire de tourner la bague 10a pour qu'elle reprenne la position des figures 1 , 2, 3 et 6, position dans laquelle le circuit pilote est ouvert (socle hors tension) alors que l'échancrure 16 permet d'actionner le bouton 12 et de déverrouiller ainsi le socle et la fiche.To unlock the plug and the base it is first necessary to turn the ring 10a to resume the position of Figures 1, 2, 3 and 6, in which position the pilot circuit is open (base off); the notch 16 allows to actuate the button 12 and thus unlock the base and the plug.
La séparation du socle et de la fiche exige donc deux opérations manuelles successives, à savoir : rotation de la bague de l'actionneur et manoeuvre du bouton de verrouillage. En l'absence de verrouillage de l'actionneur 10 par la tige 18, on comprend toutefois que si le socle est sous tension après rotation de la bague 10a, la jupe 10b empêche tout actionnement du bouton 12 et du crochet 11 qui restent en position de verrouillage empêchant tout accouplement de la fiche et du socle et donc toute connexion en charge des contacts de puissance. La tige 18 qui empêche la mise sous tension du socle lorsque la fiche n'est pas introduite dans le socle, permet aussi d'assurer que la mise sous tension du socle ne puisse s'effectuer que si la fiche est en position complète de connexion des contacts de puissance.The separation of the base and the plug therefore requires two successive manual operations, namely: rotation of the actuator ring and actuation of the locking knob. In the absence of locking of the actuator 10 by the rod 18, it is however understood that if the base is under tension after rotation of the ring 10a, the skirt 10b prevents any actuation of the button 12 and the hook 11 which remain in position locking preventing any coupling of the plug and the base and therefore any connection in charge of the power contacts. The rod 18 which prevents the power of the base when the plug is not inserted into the base, also ensures that the power of the base can be made only if the plug is in the complete position of connection power contacts.
Le dispositif selon l'invention assure donc une impossibilité de connexion et de déconnexion des contacts de puissance lorsque le socle est sous tension. The device according to the invention thus ensures an impossibility of connection and disconnection of the power contacts when the base is energized.

Claims

REVENDICATIONS
1) Dispositif de connexion électrique formé d'un socle actif (2) et d'une fiche (1) munis chacun d'au moins un contact de puissance qui sont aménagés pour être connectés entre eux lorsque la fiche et ledit socle sont accouplés en position de connexion, des contacts pilotes (7,8) d'un circuit pilote étant prévus pour commander par la fermeture et respectivement l'ouverture dudit circuit, un appareil de mise sous tension ou respectivement hors tension des contacts de puissance du socle, cette fermeture et ouverture du circuit pilote étant obtenues au moyen d'un actionneur (10) aménagé sur le socle, tandis qu'un dispositif de verrouillage et de déverrouillage de la fiche dans le socle en position de connexion est également prévu et comporte des moyens de verrouillage conjugués aménagés sur la fiche et respectivement le socle, caractérisé en ce que le moyen de verrouillage du socle distinct de l'actionneur (10) est monté mobile et possède au moins une position de verrouillage et une position de déverrouillage, l'actionneur (10) du circuit pilote (7,8) étant aménagé pour bloquer ledit moyen de verrouillage du socle dans sa position de verrouillage lorsque ledit circuit pilote (7,8) est fermé, et débloquer le moyen de verrouillage lorsque le circuit pilote est ouvert, tandis que le moyen de verrouillage du socle empêche toute manœuvre d'accouplement de la fiche et du socle ou de séparation de ces derniers une fois accouplés, lorsque ledit moyen de verrouillage est bloqué dans sa position de verrouillage par ledit actionneur (10).1) Electrical connection device consisting of an active base (2) and a plug (1) each provided with at least one power contact which are arranged to be connected together when the plug and said base are coupled in connection position, pilot contacts (7,8) of a pilot circuit being provided for controlling by the closure and respectively the opening of said circuit, an apparatus for energizing or de-energizing the power contacts of the base, this closing and opening of the pilot circuit being obtained by means of an actuator (10) arranged on the base, while a device for locking and unlocking the plug in the base in the connection position is also provided and comprises means for Conjugated locking arranged on the plug and respectively the base, characterized in that the locking means of the base separate from the actuator (10) is movably mounted and has at least one position of the lock etillage and an unlocking position, the actuator (10) of the pilot circuit (7,8) being arranged to lock said base locking means in its locking position when said pilot circuit (7,8) is closed, and unlock the locking means when the pilot circuit is open, while the locking means of the base prevents any maneuver coupling the plug and the base or separation of the latter once coupled, when said locking means is blocked in its locking position by said actuator (10).
2) Dispositif de connexion électrique selon la revendication 1 , caractérisé en ce que le circuit pilote comporte deux contacts pilotes (7,8) fixés sur le socle (2) et un shunt (9) monté de manière rotatif sur le socle, tandis que l'actionneur (10) comporte un moyen qui est solidaire en rotation du shunt (9) et qui possède au moins une position dans laquelle les deux contacts pilotes ferment le circuit pilote par contact sur le shunt (9) et au moins une position dans laquelle au moins l'un des contacts pilotes n'est pas en contact sur le shunt, le circuit pilote étant alors ouvert.2) Electrical connection device according to claim 1, characterized in that the pilot circuit comprises two pilot contacts (7,8) fixed on the base (2) and a shunt (9) rotatably mounted on the base, while the actuator (10) comprises a means which is integral in rotation with the shunt (9) and which has at least one position in which the two pilot contacts close the pilot circuit by contact on the shunt (9) and at least one position in the which at least one of the pilot contacts is not in contact on the shunt, the pilot circuit being then open.
3) Dispositif de connexion électrique selon l'une des revendications 1 et 2, caractérisé en ce que le moyen de verrouillage du socle comporte un crochet (11) mobile entre une position de verrouillage et une position déverrouillée, et qui est solidaire d'un bouton d'actionnement (12), et que le moyen de verrouillage de la fiche comporte une gorge (14) destinée à venir recevoir ledit crochet (11) en position de verrouillage obtenue en fin d'accouplement de la fiche et du socle, tandis qu'un moyen élastique est prévu pour solliciter le crochet (11) vers sa position de verrouillage. 4) Dispositif de connexion électrique selon la revendication 3, caractérisé en ce que ledit crochet (11) présente une forme appropriée pour être sollicité par une partie de la fiche (1 ) afin de lui permettre de venir se loger par élasticité dans la gorge (14) de ladite fiche sans qu'il soit nécessaire de manœuvrer le bouton d'actionnement. 5) Dispositif de connexion électrique selon l'ensemble des revendications 2 et3) Electrical connection device according to one of claims 1 and 2, characterized in that the base of the locking means comprises a hook (11) movable between a locking position and an unlocked position, and which is integral with a actuating button (12), and that the locking means of the plug has a groove (14) intended to receive said hook (11) in the locking position obtained at the end of coupling of the plug and the base, while an elastic means is provided for biasing the hook (11) towards its locking position. 4) Electrical connection device according to claim 3, characterized in that said hook (11) has a shape suitable for being urged by a portion of the plug (1) to allow it to come to be housed by elasticity in the groove ( 14) of said plug without the need to maneuver the actuating button. 5) Electrical connection device according to the set of claims 2 and
3, caractérisé en ce que le moyen de l'actionneur (10) solidaire en rotation du shunt (9) est une bague (10a) rotative qui est munie d'une jupe (10b) passant sous une partie du bouton d'actionnement (12) du crochet (11) pour bloquer celui-ci en position de verrouillage tandis qu'une échancrure (16) est prévue dans ladite jupe (10b) pour permettre la mobilité dudit bouton d'actionnement (12) vers la position déverrouillée du crochet (11), cette échancrure étant ménagée à un endroit de la jupe de manière telle que ladite échancrure est positionnée sous ledit bouton d'actionnement lorsque la bague (10a) est dans une position d'ouverture du circuit pilote.3, characterized in that the means of the actuator (10) integral in rotation with the shunt (9) is a rotating ring (10a) which is provided with a skirt (10b) passing under a portion of the actuating button ( 12) of the hook (11) to lock the latter in the locking position while a notch (16) is provided in said skirt (10b) to allow the mobility of said actuating button (12) to the unlocked position of the hook (11), this notch being provided at a location of the skirt so that said notch is positioned under said actuating button when the ring (10a) is in an open position of the pilot circuit.
6) Dispositif de connexion électrique selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'un moyen de verrouillage de l'actionneur est en outre prévu pour bloquer celui-ci dans sa position d'ouverture du circuit pilote (7,8), tandis que ledit moyen de verrouillage est aménagé pour être entraîné dans une position de déblocage par une partie de la fiche (1) lorsque celle-ci est en position de connexion, de telle sorte que l'actionneur (10) ne peut être manœuvré dans sa position de fermeture du circuit pilote (7,8) qu'après accouplement de la fiche dans le socle et connexion du ou des contacts de puissance de la fiche et du socle.6) Electrical connection device according to any one of claims 1 to 5, characterized in that a locking means of the actuator is further provided to lock it in its open position of the driver circuit (7). 8), while said locking means is arranged to be driven into an unlocking position by a part of the plug (1) when the latter is in the connection position, so that the actuator (10) can be operated in its closing position of the pilot circuit (7,8) only after coupling of the plug in the base and connection of the power contact (s) of the plug and the base.
7) Dispositif de connexion électrique selon la revendication 6, caractérisé en ce que l'actionneur comporte une bague rotative (10a) et que le moyen de verrouillage dudit actionneur se présente sous la forme d'au moins une tige mobile (18) qui est sollicitée par un moyen élastique (20) vers sa position de verrouillage dans laquelle ladite tige vient s'introduire dans une partie de l'actionneur pour bloquer laoite bague en rotation tandis que la tige peut être entraînée vers sa position de déblocage par une partie de l'extrémité de la fiche (1) au cours de son accouplement avec le socle. 8) Dispositif de connexion électrique selon la revendication 7, caractérisé en ce que la tige mobile (18) de blocage traverse une lumière (19) en arc de cercle ménagée dans l'actionneur (10) et possède un épaulement (21) destiné à venir dans un logement approprié de l'actionneur pour bloquer celui-ci de telle sorte que la tige ne gêne pas la rotation de l'actionneur lorsque l'épaulement (21) est en dehors dudit logement. 7) Electrical connection device according to claim 6, characterized in that the actuator comprises a rotary ring (10a) and that the locking means of said actuator is in the form of at least one movable rod (18) which is biased by an elastic means (20) towards its locking position in which said rod is introduced into a portion of the actuator to lock the rotating ring while the rod can be driven to its unlocking position by a portion of the end of the plug (1) during its coupling with the base. 8) Electrical connection device according to claim 7, characterized in that the movable rod (18) blocking through a slot (19) in a circular arc formed in the actuator (10) and has a shoulder (21) for come into a suitable housing of the actuator to lock it so that the rod does not interfere with the rotation of the actuator when the shoulder (21) is outside said housing.
EP09797551.0A 2008-06-25 2009-05-19 Device for secure electrical connection Active EP2291888B1 (en)

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FR0803545A FR2933244B1 (en) 2008-06-25 2008-06-25 SECURE ELECTRICAL CONNECTION DEVICE
PCT/FR2009/000579 WO2010007221A1 (en) 2008-06-25 2009-05-19 Device for secure electrical connection

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WO2010007221A1 (en) 2010-01-21
EP2291888B1 (en) 2016-06-15
FR2933244B1 (en) 2010-07-30
US20110171849A1 (en) 2011-07-14
AU2009272585A1 (en) 2010-01-21
FR2933244A1 (en) 2010-01-01
US8221150B2 (en) 2012-07-17
ES2592331T3 (en) 2016-11-29
AU2009272585B2 (en) 2014-04-24

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