EP2355249A1 - Elastic clamp connecting terminal with lever - Google Patents

Elastic clamp connecting terminal with lever Download PDF

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Publication number
EP2355249A1
EP2355249A1 EP10354092A EP10354092A EP2355249A1 EP 2355249 A1 EP2355249 A1 EP 2355249A1 EP 10354092 A EP10354092 A EP 10354092A EP 10354092 A EP10354092 A EP 10354092A EP 2355249 A1 EP2355249 A1 EP 2355249A1
Authority
EP
European Patent Office
Prior art keywords
passage
housing
lever
screen
spring means
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
EP10354092A
Other languages
German (de)
French (fr)
Other versions
EP2355249B1 (en
Inventor
Daniel Vanzetto
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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 Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP2355249A1 publication Critical patent/EP2355249A1/en
Application granted granted Critical
Publication of EP2355249B1 publication Critical patent/EP2355249B1/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
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/48365—Spring-activating arrangements mounted on or integrally formed with the spring housing with integral release means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5844—Electric connections to or between contacts; Terminals making use of wire-gripping clips or springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/0264—Protective covers for terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48455—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar insertion of a wire only possible by pressing on the spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting

Definitions

  • the invention relates to the connection to the electrical network of distribution and / or protection devices, for example circuit breakers, or the supply of electrically operated receivers. More particularly, the invention relates to elastic type connection terminals, in which the clamping is provided by a spring and in which a lever allows the opening or closing of a passage hole for the connection.
  • connection of an electrical device is made at a terminal, in which a connection pad is associated with an orifice allowing the passage of an external cable; different types of terminals exist depending on the means provided to access the orifice and / or to tighten the cable against the beach.
  • an option compensating for any loosening during the life of the apparatus uses a spring immobilizing an electrical conductor against the connection range of an electrical appliance; the spring, for example blade and loop, can be solicited by a lever that allows to access or not to the cable passage opening.
  • Embodiments of this type of elastic terminal are given in the documents EP 1 296 413 or WO 2008/128668 for example.
  • the lever comprises a cam pivoting about an axis and acting directly on the spring blade; however, it appears that, particularly when the lever is closed to ensure the tightening of the cable, the spring blade is directly accessible from the outside, and thereby there is a risk of contacting the connection pad with a external object.
  • the known solutions are based on a radical choice: either the direct identification of the position of the lever, and therefore the tightening of the terminals, is preferred which causes a protrusion of the lever relative to the housing of the protective devices, preventing for example the setting up of a plastron; the lever is integrated into the protective equipment casing, which makes it difficult to maneuver by imposing the use of a screwdriver type tool for the maneuver ( DE 10 2006 020 125 ) and requires a second check of the clamping of the terminals. Finally, some levers exceed in the wiring space of electrical devices, which hinders the technician during connection operations.
  • the invention aims to overcome the disadvantages of existing connection devices.
  • the invention proposes to provide an elastic connection terminal in which the verification of the clamping of the terminals is facilitated and the protection against intrusions at the connection pads is increased, while maintaining the reflexes of installation of 'a user and integrating into protection devices and / or distribution, including modular.
  • the invention relates to a connecting device, or terminal, elastic for an electrical device in which a screen serves as an interface between the spring and the compression member of the spring, the screen being mobile with respect to these two elements.
  • the screen is associated with biasing means which bring it back into contact with the compression means so as to tolerate different shapes of said means, and in particular a compression member formed in a unitary manner by a cam and a lever covering a different surface depending on their position of rest or compression.
  • the invention in another aspect, relates to an electrical apparatus whose housing comprises housings for the terminals accessible from one or more orifices, a first of the at least housing being provided with such a connecting device, which comprises a connection pad capable of being connected to a conductor of the electrical appliance, preferably unitary with it.
  • connection device furthermore comprises a member for holding a conductor against the connection pad, the holding element being substantially orthogonal to it and comprising a passage for the conductor.
  • the holding element is coupled, preferably unitarily, with spring means, which in particular can form a loop with a bearing branch parallel to the connection pad, a bend, a maneuvering portion and said holding member advantageously extended by a flap of shutter; according to a preferred embodiment, the support branch and / or the connection area pass through the passage of the holding element.
  • the spring means may be biased by the compression member which acts on the operating part, via the screen, and causes a displacement of the holding member substantially parallel to the wall of the housing of the apparatus comprising the orifice, so that the passage of the holding member takes two positions, a first rest position in which it is offset from said orifice, with in particular the connection area located substantially at a first end of said passage, and a second compression position in which the passage and the orifice are face to face so that a conductor can pass through the orifice and the holding element at the first end of its orifice to be parallel to the connection range.
  • the compression member comprises a pivoting cam acting on the screen and the operating portion of the spring means, extended by a gripping lever external to the housing of the apparatus; the cam and the gripping lever are preferably unitary, even though two different components may be fixedly coupled to form a compression member.
  • the lever In the first rest position, the lever is housed against the housing, for example without protruding and it preferably comprises an orifice to be able to associate a tool to mobilize it.
  • the gripping lever protrudes from the housing; preferably, a portion of the lever visible only in the second position is provided with a light to identify the position of the lever at a glance.
  • the lever is housed against the front face of the electrical appliance at rest and pivots outwardly of the housing, so as to extend the face of the housing comprising the connection port in the second position.
  • connection ports are provided for a connection pad, i.e., a single connector.
  • the device connection then comprises two cable holding elements, each comprising a passage and parallel to each other.
  • the spring means are advantageously also split, to form two similar loops; the actuation is achieved by means of a single screen and a single compression member which increases the surface area and therefore increases the maneuverability.
  • connection device according to claim 1
  • connection device and an electrical equipment according to the dependent claims.
  • an electrical protection and / or distribution device in particular a modular circuit breaker, conventionally comprises a housing 2 substantially rectangular parallelepiped, with the exception of a nose 3 on its front face 4 which opens for example an actuating lever; for the establishment of the device 1 in a table, the rear face of the housing 2 may for example comprise a recess for coupling to a DIN-type rail.
  • the large faces of the housing 2 are intended to be contiguous between appliances 1 of the same type; the two remaining faces 5, usually positioned above and below the apparatus 1 in a mounting cabinet, are provided with means for connecting the apparatus 1 to a distribution network.
  • the conductors 6 of the apparatus 1 open into housings 7 at this level, and are accessible through openings 8 in which cables 9 may be inserted.
  • the housings 7 comprise connection devices 10, or terminals, for clamping the cables, or other wires, 9 to keep them in contact with a portion of the conductors 6 of the apparatus 1 to finalize the electrical installation.
  • a connecting device 10 thus comprises a connection pad, or connection, 12 for a conductor 6 of the electrical apparatus 1; classically part of the conductor 6, the range 12 is flat, especially copper, and substantially parallel to the bottom and front walls 4 of the device 1, so that the orifice 8 of the housing 2 is orthogonal and that a cable 9 passing through the orifice 8 is parallel to it.
  • connection device 10 illustrated further comprises a leaf spring 14 in the form of a loop for clamping a cable 9 against the beach 12.
  • the spring 14 thus comprises a holding element 16, substantially parallel to the wall 5 of the orifice 8, provided with a passage 18 for the cable 9; the holding member 16 is extended by an operating portion 20 allowing, when a force is exerted therein, to move the passage 18 substantially parallel to the wall 5, so that the orifices 8 of the housing 2 and 18 of the holding element 16 can be located face to face, to allow the insertion or removal of a cable 9, or offset with respect to each other.
  • the operating portion 20 extends, via a bend, to a support arm 22 which rests against the connection pad 12; in a preferred embodiment, in order to stabilize the assembly, an end 24 of the support branch 22 projects through the element of holding 16, the relative movement of the end relative to the passage 18 being free, without friction, regardless of the relative position of the holding member 16 and the compression of the spring 14; alternatively or in addition, the connection pad 12 can also pass through the holding member 16.
  • a first rest position in the absence of cable 9, the spring 14 is deployed, and the orifices 8, 18 are non-aligned, with the connection pad 12 at one end of the passage 18; the holding member 16 then preferably closes the orifice 8 of the apparatus 1 by means of a flap 26 under the passage 18, in order to eliminate any risk of intrusion of an object through the orifice 8.
  • a force is exerted on the operating part 20 so that the passage 18 deviates from the connection pad 12 and is located at the orifice 8 ( Figure 2B ): a cable 9 can be inserted.
  • the means 30 for exerting the compression of the spring 14 comprise a cam 32 which is adapted for the housing 7 and which is rotatable between a rest position in which it does not act on the operating part 20 and a second position in which the spring 14 is compressed.
  • the cam 32 is extended, unitarily or by a fixed coupling, by a gripping lever 34 accessible from outside the housing 2; advantageously, the first and second positions are separated by a rotation of the order of 90 ° of the lever 34.
  • the lever 34 is pressed against the housing 2, or even preferably integrated in a housing wall arrangement 2.
  • the lever 34 is housed in the front wall 4 of the housing 2, under the nose 3 of the device 1: access to the lever 34 is thus facilitated, and it is not necessary for the operator to seek access by the above (or below) 5 of the device 1, face congested by the connection cables 9 which may be inaccessible depending on the position of the device 1 in the electrical cabinet.
  • the direction of rotation of the cam 32 is reversed, that is to say that the axis of rotation 36 of the compression member 30 is located towards the wall 5 comprising the orifice 8 connection, at the end of the lever 34 away from the nose 3 of the apparatus 1, so that the opening of the lever 34 is from the nose 3 of the apparatus 1 to a position, substantially 90 ° , in the extension of the lower or upper face 5.
  • the wiring zone 8 remains free access, as with a screw terminal, and the closing movement of the lever 34 is facilitated, exerted by pressure against a fixed wall 4.
  • the lever 34 is housed in an arrangement of the walls 4, 5 of the housing 2, which are partially recessed and against which the compression member 30 abuts in the two positions. Due to the difference in height between the stop on the housing 2 of the base of the lever 34 in the open position ( Figure 2B ) and the base of the cam 32 when the lever 34 is in the closed position ( Figure 2A ), the housing 7 of the connecting device 10 can be accessible from the outside.
  • a movable screen 40 made of insulating material, is placed between the cam 32 and the operating portion 20 of the spring 14, to cover the area of the spring that is exposed; to transmit the compression exerted by the cam 32, the screen 40 is movable in the housing 7, preferably without friction, and preferably in translation orthogonal to the holding member 16, so as to obstruct the passage created by the 5. Due to the presence of this floating screen 40, the recommended reversal of the direction of rotation of the lever 34 thus poses no security problem, while not modifying the performance and without prohibitive cost.
  • the screen comprises a flat surface 42 bearing on the operating part 20 of the spring means 14 and transmitting the compression of the cam 32; advantageously, the flat surface 42 substantially closes the housing 7 of the terminal 10, so as to also close the passage created in the second open position of the lever 34 in the front wall 4 towards the spring 14.
  • screen 40 is provided with spring means 44, preferably unitary with it, allowing its return to the cam 32; it is then recommended that the spring means 44 of the screen 40 are coupled to the housing 2, the screen 40 is thus mounted free in translation so as to minimize friction by allowing any freedom of movement to the flat surface 42 of the Screen 40.
  • the screen 40 comprises a flange 46 for closing the housing 7 and covering the operating portion 20 of the spring 14, thus preventing any contact with the spring 14 from outside the housing. device 1.
  • the lever 34 in the first rest position ( Figure 2A ), the lever 34 does not protrude from the housing 2, so that the possible establishment of a protective plastron (visible on the figure 1 ) in the cabinets, directly around the nose 3 of the aligned apparatus 1, is not modified.
  • actuating means are provided, and in particular, a hole-type arrangement 34A makes it possible to introduce a tool 50, for example a screwdriver, to mobilize the lever for gripping. 34.
  • This option offers for another advantage a reduction of the lever arm at the opening: it becomes possible to actuate elastic connection devices 10 for large cable sections 9.
  • the hole 34A is designed to guide a elongated tool 50 in a plane orthogonal to the lever 34, that is to say free facing the housing 2; advantageously, the tool 50 is inserted with a predetermined angle ⁇ , constant along the displacement, for example 25 °, so that insertion and movement are natural and the tool 50 is not obstructed by the housing 2 of the device 1 from the first to the second position.
  • the preferred embodiment has a lever 34 conforming to the profile 4 of the apparatus 1 when it closes the connection device 10, actuated by a screwdriver 50 to open the terminal and manually to close it
  • other options are possible.
  • the lever 34 can be grasped by hand for opening and / or has only a second stable position of closure.
  • the presented mode offers additional advantages of facilitating the connection by holding the cable 9 with one hand and closing the terminal of the other, to accept large conductor sections 9, for which the means 30 acting on the spring 14 can be operated with a large lever on opening.
  • the use of a tool 50 to open the connection device 10 requires conscious action and avoids inadvertent disconnections.
  • the lever 34 protruding from the casing of the housing 2.
  • means can be provided to quickly identify the closure of the levers 34, that is to say the tightening of the terminals 10: for example, on the projecting portion of the lever 34 invisible in the first position, it is possible to put a 34B indicator ( figure 4 ), including a bright color absent from the usual housings 2, which can immediately locate the terminals possibly not tight.
  • connection device 10 As illustrated in figure 4 certain electrical apparatuses 1 comprise two connection orifices 8 2 for a recess 7 and a conductive pad 12.
  • the connection device 10 according to the invention then comprises two springs 14 for holding and clamping the cables 9 independently of each other. one of the other; the two springs 14 1 , 14 2 are advantageously identical and parallel, their passages 18 1 , 18 2 facing each of the orifices in the second compressed position.
  • the connecting device 10 comprises a single compression member 30 and a single screen 40; preferably, the protective screen 40 is provided with guide means 48, in particular a rail which is positioned between the two operating parts 20 of the springs 14 i .
  • the invention adapts to an elastic system 14 of terminal 10 actuated by a lever 34, that the lever 34 has two stable positions or not.
  • the shape of the spring means 14 can be varied according to the range and the design of the apparatus 1: the presence in this type of terminal of a screen 40 placed between the actuating means 30 and the compression means 14 to complete the connection makes it possible to comply with the strictest sealing criteria, and to prevent the penetration of objects 1 mm which could come into contact with the leaf spring 20 under tension of the terminal.
  • the screen 40 meanwhile can be movable in translation or in rotation according to the design of the other components of the device 10.
  • pivoting direction of the lever 34 can be reversed, but the preferred option allows to use the free space in front of the apparatus 1 to insert and rotate the tool 50, to set up means 34B to visualize the state of closure or not of the lever 34, and to prevent the final installation of the plastron in case of lack of connection.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

The device (10) has a compression unit including a gripping lever, and a spring coupled to a maintain element. A connection palm is localized at an end of a passage in a rest position of the maintain element. A screen (40) i.e. protection screen, serves as an interface between an operating part of the spring and the compression unit, where the screen is movable with respect to the spring and the compression unit. An operating part is connected to a support branch of the spring. An independent claim is also included for an electric protection apparatus comprising a case.

Description

DOMAINE TECHNIQUETECHNICAL AREA

L'invention concerne le raccordement au réseau électrique d'appareils de distribution et/ou de protection, par exemple des disjoncteurs, ou l'alimentation de récepteurs à fonctionnement électrique. Plus particulièrement, l'invention se rapporte aux bornes de raccordement de type élastiques, dans lesquelles le serrage est assuré par un ressort et dans lesquelles un levier permet l'ouverture ou la fermeture d'un orifice de passage pour la connexion.The invention relates to the connection to the electrical network of distribution and / or protection devices, for example circuit breakers, or the supply of electrically operated receivers. More particularly, the invention relates to elastic type connection terminals, in which the clamping is provided by a spring and in which a lever allows the opening or closing of a passage hole for the connection.

ETAT DE LA TECHNIQUESTATE OF THE ART

Le raccordement d'un appareil électrique s'effectue au niveau d'une borne, dans laquelle une plage de raccordement est associée à un orifice permettant le passage d'un câble externe ; différents types de bornes existent en fonction des moyens prévus pour accéder à l'orifice et/ou pour serrer le câble contre la plage. En particulier, une option compensant le desserrage éventuel durant la vie de l'appareil met en oeuvre un ressort immobilisant un conducteur électrique contre la plage de raccordement d'un appareil électrique ; le ressort, par exemple à lame et en boucle, peut être sollicité par un levier qui permet de donner accès ou non à l'orifice de passage du câble. Des modes de réalisation de ce type de borne élastique sont donnés dans les documents EP 1 296 413 ou WO 2008/128668 par exemple.The connection of an electrical device is made at a terminal, in which a connection pad is associated with an orifice allowing the passage of an external cable; different types of terminals exist depending on the means provided to access the orifice and / or to tighten the cable against the beach. In particular, an option compensating for any loosening during the life of the apparatus uses a spring immobilizing an electrical conductor against the connection range of an electrical appliance; the spring, for example blade and loop, can be solicited by a lever that allows to access or not to the cable passage opening. Embodiments of this type of elastic terminal are given in the documents EP 1 296 413 or WO 2008/128668 for example.

Classiquement, le levier comprend une came pivotant autour d'un axe et qui agit directement sur la lame faisant ressort ; il apparaît cependant que, en particulier lorsque le levier est fermé pour assurer le serrage du câble, la lame faisant ressort est directement accessible depuis l'extérieur, et par là-même existe un risque de mise en contact de la plage de raccordement avec un objet extérieur. Qui plus est, les solutions connues reposent sur un choix radical : soit l'identification directe de la position du levier, et donc du serrage des bornes, est privilégiée ce qui entraîne une protubérance du levier par rapport au boîtier des appareils de protection, empêchant par exemple la mise en place d'un plastron ; soit le levier est intégré dans l'enveloppe des appareils de protection, ce qui rend malaisée sa manoeuvre en imposant l'utilisation d'un outil de type tournevis pour la manoeuvre ( DE 10 2006 020 125 ) et nécessite une deuxième vérification du serrage des bornes. Enfin, certains leviers dépassent dans l'espace de câblage des appareils électriques, ce qui gêne le technicien lors des opérations de raccordement.Conventionally, the lever comprises a cam pivoting about an axis and acting directly on the spring blade; however, it appears that, particularly when the lever is closed to ensure the tightening of the cable, the spring blade is directly accessible from the outside, and thereby there is a risk of contacting the connection pad with a external object. What is more, the known solutions are based on a radical choice: either the direct identification of the position of the lever, and therefore the tightening of the terminals, is preferred which causes a protrusion of the lever relative to the housing of the protective devices, preventing for example the setting up of a plastron; the lever is integrated into the protective equipment casing, which makes it difficult to maneuver by imposing the use of a screwdriver type tool for the maneuver ( DE 10 2006 020 125 ) and requires a second check of the clamping of the terminals. Finally, some levers exceed in the wiring space of electrical devices, which hinders the technician during connection operations.

EXPOSE DE L'INVENTIONSUMMARY OF THE INVENTION

Parmi autres avantages, l'invention vise à pallier des inconvénients des dispositifs de raccordement existants. En particulier, l'invention se propose de fournir une borne de raccordement élastique dans laquelle la vérification du serrage des bornes est facilitée et la protection contre les intrusions au niveau des plages de raccordement est augmentée, tout en conservant les réflexes de mise en place d'un utilisateur et en s'intégrant dans les appareils de protection et/ou distribution, notamment modulaires.Among other advantages, the invention aims to overcome the disadvantages of existing connection devices. In particular, the invention proposes to provide an elastic connection terminal in which the verification of the clamping of the terminals is facilitated and the protection against intrusions at the connection pads is increased, while maintaining the reflexes of installation of 'a user and integrating into protection devices and / or distribution, including modular.

Plus généralement, sous un de ses aspects, l'invention concerne un dispositif de raccordement, ou borne, élastique pour un appareil électrique dans laquelle un écran sert d'interface entre le ressort et l'organe de compression du ressort, l'écran étant mobile par rapport à ces deux éléments. Avantageusement, l'écran est associé à des moyens de rappel qui le ramènent en contact avec les moyens de compression de façon à tolérer des formes différentes desdits moyens, et notamment un organe de compression formé de façon unitaire par une came et un levier couvrant une surface différente selon leur position de repos ou de compression.More generally, in one of its aspects, the invention relates to a connecting device, or terminal, elastic for an electrical device in which a screen serves as an interface between the spring and the compression member of the spring, the screen being mobile with respect to these two elements. Advantageously, the screen is associated with biasing means which bring it back into contact with the compression means so as to tolerate different shapes of said means, and in particular a compression member formed in a unitary manner by a cam and a lever covering a different surface depending on their position of rest or compression.

Sous un autre aspect, l'invention concerne un appareil électrique dont le boîtier comprend des logements pour les bornes accessibles depuis un ou plusieurs orifices, un premier des logements au moins étant doté d'un tel dispositif de raccordement, qui comprend une plage de connexion susceptible d'être raccordée à un conducteur de l'appareil électrique, de préférence unitaire avec lui.In another aspect, the invention relates to an electrical apparatus whose housing comprises housings for the terminals accessible from one or more orifices, a first of the at least housing being provided with such a connecting device, which comprises a connection pad capable of being connected to a conductor of the electrical appliance, preferably unitary with it.

Le dispositif de raccordement comprend par ailleurs un élément de maintien d'un conducteur contre la plage de raccordement, l'élément de maintien lui étant sensiblement orthogonal et comprenant un passage pour le conducteur. L'élément de maintien est couplé, de préférence de façon unitaire, avec des moyens faisant ressort, qui notamment peuvent former une boucle avec une branche d'appui parallèle à la plage de raccordement, un coude, une partie de manoeuvre et ledit élément de maintien avantageusement prolongé par une bavette d'obturation ; selon un mode de réalisation préféré, la branche d'appui et/ou la plage de raccordement traversent le passage de l'élément de maintien. Les moyens faisant ressort peuvent être sollicités par l'organe de compression qui agit sur la partie de manoeuvre, par l'intermédiaire de l'écran, et entraîne un déplacement de l'élément de maintien sensiblement parallèlement à la paroi du boîtier de l'appareil comprenant l'orifice, de sorte que le passage de l'élément de maintien prend deux positions, une première position de repos dans laquelle il est décalé dudit orifice, avec notamment la plage de raccordement localisée sensiblement à une première extrémité dudit passage, et une deuxième position de compression dans laquelle le passage et l'orifice sont face à face de sorte qu'un conducteur peut traverser l'orifice et l'élément de maintien au niveau de la première extrémité dégagée de son orifice pour se retrouver parallèle à la plage de raccordement.The connection device furthermore comprises a member for holding a conductor against the connection pad, the holding element being substantially orthogonal to it and comprising a passage for the conductor. The holding element is coupled, preferably unitarily, with spring means, which in particular can form a loop with a bearing branch parallel to the connection pad, a bend, a maneuvering portion and said holding member advantageously extended by a flap of shutter; according to a preferred embodiment, the support branch and / or the connection area pass through the passage of the holding element. The spring means may be biased by the compression member which acts on the operating part, via the screen, and causes a displacement of the holding member substantially parallel to the wall of the housing of the apparatus comprising the orifice, so that the passage of the holding member takes two positions, a first rest position in which it is offset from said orifice, with in particular the connection area located substantially at a first end of said passage, and a second compression position in which the passage and the orifice are face to face so that a conductor can pass through the orifice and the holding element at the first end of its orifice to be parallel to the connection range.

L'organe de compression comprend une came pivotante agissant sur l'écran et la partie de manoeuvre des moyens faisant ressort, prolongée par un levier de préhension externe au boîtier de l'appareil ; la came et le levier de préhension sont de préférence unitaires, même si deux composants différents peuvent être couplés de façon fixe pour former un organe de compression. Dans la première position de repos, le levier est logé contre le boîtier, par exemple sans en faire saillie et il comprend de préférence un orifice pour pouvoir lui associer un outil afin de le mobiliser. Dans la deuxième position, avantageusement orthogonale à la première, le levier de préhension fait saillie du boîtier ; de préférence, une partie du levier visible uniquement dans la deuxième position est munie d'un voyant afin d'identifier la position du levier du premier coup d'oeil. Avantageusement, le levier est logé contre la face avant de l'appareil électrique au repos et pivote vers l'extérieur du boîtier, de façon à prolonger la face du boîtier comprenant l'orifice de raccordement dans la deuxième position.The compression member comprises a pivoting cam acting on the screen and the operating portion of the spring means, extended by a gripping lever external to the housing of the apparatus; the cam and the gripping lever are preferably unitary, even though two different components may be fixedly coupled to form a compression member. In the first rest position, the lever is housed against the housing, for example without protruding and it preferably comprises an orifice to be able to associate a tool to mobilize it. In the second position, advantageously orthogonal to the first, the gripping lever protrudes from the housing; preferably, a portion of the lever visible only in the second position is provided with a light to identify the position of the lever at a glance. Advantageously, the lever is housed against the front face of the electrical appliance at rest and pivots outwardly of the housing, so as to extend the face of the housing comprising the connection port in the second position.

Dans un mode de réalisation, deux orifices de raccordement sont prévus pour une plage de raccordement, c'est-à-dire un seul dispositif de raccordement. De préférence, le dispositif de raccordement comprend alors deux éléments de maintien des câbles, comprenant chacun un passage et parallèles l'un à l'autre. Les moyens faisant ressort sont avantageusement également dédoublés, pour former deux boucles similaires ; l'actionnement est réalisé par l'intermédiaire d'un seul écran et d'un seul organe de compression ce qui permet d'accroître la surface et donc d'augmenter la maniabilité.In one embodiment, two connection ports are provided for a connection pad, i.e., a single connector. Preferably, the device connection then comprises two cable holding elements, each comprising a passage and parallel to each other. The spring means are advantageously also split, to form two similar loops; the actuation is achieved by means of a single screen and a single compression member which increases the surface area and therefore increases the maneuverability.

Plus généralement, l'invention concerne un dispositif de raccordement selon la revendication 1, ainsi qu'un dispositif de raccordement et un équipement électrique selon les revendications dépendantes..More generally, the invention relates to a connection device according to claim 1, and a connection device and an electrical equipment according to the dependent claims.

BREVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui suit de modes particuliers de réalisation de l'invention, donnés à titre illustratif et nullement limitatifs, représentés dans les figures annexées.

  • La figure 1 représente un appareil électrique dans lequel peut être mis en place un dispositif de raccordement selon l'invention.
  • Les figures 2A et 2B illustrent les deux positions d'un dispositif de raccordement selon un mode de réalisation de l'invention.
  • La figure 3 montre les différents composants d'un dispositif de raccordement selon un mode de réalisation de l'invention.
  • La figure 4 montre un dispositif de raccordement selon l'invention mis en place dans un appareil électrique.
Other advantages and features will emerge more clearly from the following description of particular embodiments of the invention, given by way of illustration and in no way limiting, represented in the appended figures.
  • The figure 1 represents an electrical apparatus in which a connecting device according to the invention can be put in place.
  • The Figures 2A and 2B illustrate the two positions of a connecting device according to one embodiment of the invention.
  • The figure 3 shows the different components of a connection device according to one embodiment of the invention.
  • The figure 4 shows a connection device according to the invention placed in an electrical device.

DESCRIPTION DETAILLEE D'UN MODE DE REALISATION PREFEREDETAILED DESCRIPTION OF A PREFERRED EMBODIMENT

Tel qu'illustré en figure 1, un appareil de protection et/ou distribution électrique 1, notamment un disjoncteur modulaire, comprend classiquement un boîtier 2 sensiblement parallélépipédique rectangle, à l'exception d'un nez 3 sur sa face avant 4 duquel débouche par exemple une manette d'actionnement ; pour la mise en place de l'appareil 1 dans un tableau, la face arrière du boîtier 2 peut par exemple comprendre un évidement permettant un couplage sur un rail de type DIN. Les grandes faces du boîtier 2 sont destinées à être accolées entre appareils 1 du même type ; les deux faces restantes 5, usuellement positionnées au dessus et en dessous de l'appareil 1 dans une armoire de montage, sont munies de moyens permettant le raccordement de l'appareil 1 vers un réseau de distribution. En particulier, les conducteurs 6 de l'appareil 1 (voir figures 2) débouchent dans des logements 7 à ce niveau, et sont accessibles par des orifices 8 dans lesquels peuvent être insérés des câbles 9. Les logements 7 comprennent des dispositifs de raccordement 10, ou bornes, permettant le serrage des câbles, ou autre fils, 9 afin de les maintenir en contact avec une partie des conducteurs 6 de l'appareil 1 pour finaliser l'installation électrique.As illustrated in figure 1 , an electrical protection and / or distribution device 1, in particular a modular circuit breaker, conventionally comprises a housing 2 substantially rectangular parallelepiped, with the exception of a nose 3 on its front face 4 which opens for example an actuating lever; for the establishment of the device 1 in a table, the rear face of the housing 2 may for example comprise a recess for coupling to a DIN-type rail. The large faces of the housing 2 are intended to be contiguous between appliances 1 of the same type; the two remaining faces 5, usually positioned above and below the apparatus 1 in a mounting cabinet, are provided with means for connecting the apparatus 1 to a distribution network. In particular, the conductors 6 of the apparatus 1 (see figures 2 ) open into housings 7 at this level, and are accessible through openings 8 in which cables 9 may be inserted. The housings 7 comprise connection devices 10, or terminals, for clamping the cables, or other wires, 9 to keep them in contact with a portion of the conductors 6 of the apparatus 1 to finalize the electrical installation.

Tel qu'illustré en figures 2 et 3, un dispositif de raccordement 10 selon l'invention comprend ainsi une plage de connexion, ou de raccordement, 12 pour un conducteur 6 de l'appareil électrique 1 ; faisant classiquement partie du conducteur 6, la plage 12 est plane, notamment en cuivre, et sensiblement parallèle aux parois de fond et avant 4 de l'appareil 1, de sorte que l'orifice 8 du boîtier 2 lui est orthogonal et qu'un câble 9 traversant l'orifice 8 lui est parallèle.As illustrated in figures 2 and 3 , a connecting device 10 according to the invention thus comprises a connection pad, or connection, 12 for a conductor 6 of the electrical apparatus 1; classically part of the conductor 6, the range 12 is flat, especially copper, and substantially parallel to the bottom and front walls 4 of the device 1, so that the orifice 8 of the housing 2 is orthogonal and that a cable 9 passing through the orifice 8 is parallel to it.

Le dispositif de raccordement 10 illustré comprend en outre une lame ressort 14 en forme de boucle permettant le serrage d'un câble 9 contre la plage 12. Le ressort 14 comprend ainsi un élément de maintien 16, sensiblement parallèle à la paroi 5 de l'orifice 8, muni d'un passage 18 pour le câble 9 ; l'élément de maintien 16 est prolongé par une partie de manoeuvre 20 permettant, lorsqu'une force y est exercée, de déplacer le passage 18 sensiblement parallèlement à la paroi 5, de sorte que les orifices 8 du boîtier 2 et 18 de l'élément de maintien 16 peuvent être localisés face à face, pour permettre l'insertion ou le retrait d'un câble 9, ou décalés l'un par rapport à l'autre. La partie de manoeuvre 20 se prolonge, par l'intermédiaire d'un coude, vers une branche d'appui 22 qui repose contre la plage de raccordement 12 ; dans un mode de réalisation préféré, afin de stabiliser l'ensemble, une extrémité 24 de la branche d'appui 22 fait saillie à travers l'élément de maintien 16, le mouvement relatif de l'extrémité par rapport au passage 18 étant libre, sans frottement, quelle que soit la position relative de l'élément de maintien 16 et la compression du ressort 14 ; alternativement ou en complément, la plage de connexion 12 peut elle aussi passer à travers l'élément de maintien 16.The connection device 10 illustrated further comprises a leaf spring 14 in the form of a loop for clamping a cable 9 against the beach 12. The spring 14 thus comprises a holding element 16, substantially parallel to the wall 5 of the orifice 8, provided with a passage 18 for the cable 9; the holding member 16 is extended by an operating portion 20 allowing, when a force is exerted therein, to move the passage 18 substantially parallel to the wall 5, so that the orifices 8 of the housing 2 and 18 of the holding element 16 can be located face to face, to allow the insertion or removal of a cable 9, or offset with respect to each other. The operating portion 20 extends, via a bend, to a support arm 22 which rests against the connection pad 12; in a preferred embodiment, in order to stabilize the assembly, an end 24 of the support branch 22 projects through the element of holding 16, the relative movement of the end relative to the passage 18 being free, without friction, regardless of the relative position of the holding member 16 and the compression of the spring 14; alternatively or in addition, the connection pad 12 can also pass through the holding member 16.

Dans une première position de repos (figure 2A), en l'absence de câble 9, le ressort 14 est déployé, et les orifices 8, 18 sont non alignés, avec la plage de raccordement 12 au niveau d'une extrémité du passage 18 ; l'élément de maintien 16 obture alors de préférence l'orifice 8 de l'appareil 1 grâce à une bavette 26 sous le passage 18, afin d'éliminer tout risque d'intrusion d'un objet par l'orifice 8. Pour connecter un câble 9, une force est exercée sur la partie de manoeuvre 20 de façon à ce que le passage 18 s'écarte de la plage de raccordement 12 et se place au niveau de l'orifice 8 (figure 2B) : un câble 9 peut être inséré. Lorsque le câble 9 est mis en place, l'action sur le ressort 14 est supprimée, et la partie de manoeuvre 20 tend à ramener le passage 18 dans sa première position ; la présence du câble 9 bloque le déplacement de l'élément de maintien 16 dans une position dans laquelle le câble 9 reste serré contre la plage de raccordement 12, à l'opposé de la branche de maintien 22.In a first rest position ( Figure 2A ), in the absence of cable 9, the spring 14 is deployed, and the orifices 8, 18 are non-aligned, with the connection pad 12 at one end of the passage 18; the holding member 16 then preferably closes the orifice 8 of the apparatus 1 by means of a flap 26 under the passage 18, in order to eliminate any risk of intrusion of an object through the orifice 8. To connect a cable 9, a force is exerted on the operating part 20 so that the passage 18 deviates from the connection pad 12 and is located at the orifice 8 ( Figure 2B ): a cable 9 can be inserted. When the cable 9 is put in place, the action on the spring 14 is eliminated, and the operating portion 20 tends to return the passage 18 in its first position; the presence of the cable 9 blocks the displacement of the holding element 16 in a position in which the cable 9 remains tight against the connection pad 12, opposite the holding arm 22.

Les moyens 30 pour exercer la compression du ressort 14 comprennent une came 32 qui est adaptée pour le logement 7 et qui est mobile en rotation entre une position de repos dans laquelle elle n'agit pas sur la partie de manoeuvre 20 et une deuxième position dans laquelle le ressort 14 est comprimé. La came 32 est prolongée, de façon unitaire ou par un couplage fixe, par un levier de préhension 34 accessible depuis l'extérieur du boîtier 2 ; avantageusement, la première et la deuxième position sont séparées par une rotation de l'ordre de 90° du levier 34.The means 30 for exerting the compression of the spring 14 comprise a cam 32 which is adapted for the housing 7 and which is rotatable between a rest position in which it does not act on the operating part 20 and a second position in which the spring 14 is compressed. The cam 32 is extended, unitarily or by a fixed coupling, by a gripping lever 34 accessible from outside the housing 2; advantageously, the first and second positions are separated by a rotation of the order of 90 ° of the lever 34.

Afin de réduire l'encombrement de l'appareil 1, dans sa première position de repos, le levier 34 est plaqué contre le boîtier 2, voire même, de préférence, intégré dans un aménagement d'une paroi du boîtier 2. Avantageusement, le levier 34 est logé dans la paroi avant 4 du boîtier 2, sous le nez 3 de l'appareil 1 : l'accès au levier 34 est ainsi facilité, et il n'est pas nécessaire à l'opérateur de chercher un accès par le dessus (ou le dessous) 5 de l'appareil 1, face encombrée par les câbles de raccordement 9 qui peut être inaccessible selon la position de l'appareil 1 dans l'armoire électrique.To reduce the size of the device 1, in its first rest position, the lever 34 is pressed against the housing 2, or even preferably integrated in a housing wall arrangement 2. Advantageously, the lever 34 is housed in the front wall 4 of the housing 2, under the nose 3 of the device 1: access to the lever 34 is thus facilitated, and it is not necessary for the operator to seek access by the above (or below) 5 of the device 1, face congested by the connection cables 9 which may be inaccessible depending on the position of the device 1 in the electrical cabinet.

Dans un mode de réalisation préféré, le sens de rotation de la came 32 est inversé, c'est-à-dire que l'axe de rotation 36 de l'organe de compression 30 est localisé vers la paroi 5 comprenant l'orifice 8 de raccordement, au niveau de l'extrémité du levier 34 éloignée du nez 3 de l'appareil 1, de sorte que l'ouverture du levier 34 se fasse depuis le nez 3 de l'appareil 1 vers une position, sensiblement à 90°, dans le prolongement de la face inférieure ou supérieure 5. De cette façon, la zone de câblage 8 reste libre d'accès, comme avec une borne à vis, et le mouvement de fermeture du levier 34 est facilité, s'exerçant par pression contre une paroi fixe 4.In a preferred embodiment, the direction of rotation of the cam 32 is reversed, that is to say that the axis of rotation 36 of the compression member 30 is located towards the wall 5 comprising the orifice 8 connection, at the end of the lever 34 away from the nose 3 of the apparatus 1, so that the opening of the lever 34 is from the nose 3 of the apparatus 1 to a position, substantially 90 ° , in the extension of the lower or upper face 5. In this way, the wiring zone 8 remains free access, as with a screw terminal, and the closing movement of the lever 34 is facilitated, exerted by pressure against a fixed wall 4.

Le levier 34 est logé dans un aménagement des parois 4, 5 du boîtier 2, qui sont en partie évidées et contre lesquelles l'organe de compression 30 vient en butée dans les deux positions. Du fait de la différence de hauteur entre la butée sur le boîtier 2 de la base du levier 34 en position ouverte (figure 2B) et de la base de la came 32 quand le levier 34 est en position fermée (figure 2A), le logement 7 du dispositif de raccordement 10 peut être accessible depuis l'extérieur.The lever 34 is housed in an arrangement of the walls 4, 5 of the housing 2, which are partially recessed and against which the compression member 30 abuts in the two positions. Due to the difference in height between the stop on the housing 2 of the base of the lever 34 in the open position ( Figure 2B ) and the base of the cam 32 when the lever 34 is in the closed position ( Figure 2A ), the housing 7 of the connecting device 10 can be accessible from the outside.

Afin de supprimer le risque qu'un objet, en particulier métallique, de faible épaisseur pénètre entre la came 32 et le ressort 14, et donc pour pallier le risque d'électrocution, un écran mobile 40, en matière isolante, est placé entre la came 32 et la partie de manoeuvre 20 du ressort 14, pour recouvrir la zone du ressort qui est exposée ; pour transmettre la compression exercée par la came 32, l'écran 40 est mobile dans le logement 7, de préférence sans frottement, et avantageusement en translation orthogonale à l'élément de maintien 16, de façon à obstruer au mieux le passage créé par l'évidement de la paroi 5. Grâce à la présence de cet écran flottant 40, l'inversion préconisée du sens de rotation du levier 34 ne pose ainsi aucun problème de sécurité, tout en ne modifiant pas les performances et sans coût prohibitif.In order to eliminate the risk of an object, in particular metal, of small thickness penetrating between the cam 32 and the spring 14, and thus to mitigate the risk of electrocution, a movable screen 40, made of insulating material, is placed between the cam 32 and the operating portion 20 of the spring 14, to cover the area of the spring that is exposed; to transmit the compression exerted by the cam 32, the screen 40 is movable in the housing 7, preferably without friction, and preferably in translation orthogonal to the holding member 16, so as to obstruct the passage created by the 5. Due to the presence of this floating screen 40, the recommended reversal of the direction of rotation of the lever 34 thus poses no security problem, while not modifying the performance and without prohibitive cost.

En particulier, l'écran comprend une surface plane 42 venant en appui sur la partie de manoeuvre 20 des moyens faisant ressort 14 et lui transmettant la compression de la came 32 ; avantageusement, la surface plane 42 ferme sensiblement le logement 7 de la borne 10, de façon à également obturer le passage créé dans la deuxième position, ouverte, du levier 34 au sein de la paroi avant 4 vers le ressort 14. De préférence, l'écran 40 est muni de moyens faisant ressort 44, de préférence unitaires avec lui, permettant son rappel vers la came 32 ; il est alors préconisé que les moyens faisant ressort 44 de l'écran 40 soient couplés au boîtier 2, l'écran 40 étant ainsi monté libre en translation de façon à minimiser les frottements en laissant toute liberté de déplacement à la surface plane 42 de l'écran 40. Qui plus est, l'écran 40 comprend un rebord 46 permettant l'obturation du logement 7 et le recouvrement de la partie de manoeuvre 20 du ressort 14, interdisant ainsi tout contact avec le ressort 14 depuis l'extérieur de l'appareil 1.In particular, the screen comprises a flat surface 42 bearing on the operating part 20 of the spring means 14 and transmitting the compression of the cam 32; advantageously, the flat surface 42 substantially closes the housing 7 of the terminal 10, so as to also close the passage created in the second open position of the lever 34 in the front wall 4 towards the spring 14. Preferably, screen 40 is provided with spring means 44, preferably unitary with it, allowing its return to the cam 32; it is then recommended that the spring means 44 of the screen 40 are coupled to the housing 2, the screen 40 is thus mounted free in translation so as to minimize friction by allowing any freedom of movement to the flat surface 42 of the Screen 40. What is more, the screen 40 comprises a flange 46 for closing the housing 7 and covering the operating portion 20 of the spring 14, thus preventing any contact with the spring 14 from outside the housing. device 1.

Avantageusement, dans la première position de repos (figure 2A), le levier 34 ne fait pas saillie du boîtier 2, de sorte que la mise en place éventuelle d'un plastron de protection (visible sur la figure 1) dans les armoires, directement autour du nez 3 des appareils 1 alignés, n'est pas modifiée. Pour permettre une ouverture simple de l'organe de compression 30, des moyens d'actionnement sont prévus, et en particulier, un aménagement de type trou 34A permet d'introduire un outil 50, par exemple un tournevis, pour mobiliser le levier de préhension 34. Cette option offre pour autre avantage une démultiplication du bras de levier à l'ouverture : il devient possible d'actionner des dispositifs de raccordement 10 élastiques pour de fortes sections de câble 9. De préférence, le trou 34A est conçu pour guider un outil longiligne 50 dans un plan orthogonal au levier 34, c'est-à-dire libre face au boîtier 2 ; avantageusement, l'outil 50 est inséré avec un angle α prédéterminé, constant au long du déplacement, par exemple 25°, de sorte qu'insertion et mouvement soient naturels et que l'outil 50 ne soit pas gêné par le boîtier 2 de l'appareil 1 de la première à la deuxième position.Advantageously, in the first rest position ( Figure 2A ), the lever 34 does not protrude from the housing 2, so that the possible establishment of a protective plastron (visible on the figure 1 ) in the cabinets, directly around the nose 3 of the aligned apparatus 1, is not modified. To allow a simple opening of the compression member 30, actuating means are provided, and in particular, a hole-type arrangement 34A makes it possible to introduce a tool 50, for example a screwdriver, to mobilize the lever for gripping. 34. This option offers for another advantage a reduction of the lever arm at the opening: it becomes possible to actuate elastic connection devices 10 for large cable sections 9. Preferably, the hole 34A is designed to guide a elongated tool 50 in a plane orthogonal to the lever 34, that is to say free facing the housing 2; advantageously, the tool 50 is inserted with a predetermined angle α, constant along the displacement, for example 25 °, so that insertion and movement are natural and the tool 50 is not obstructed by the housing 2 of the device 1 from the first to the second position.

Bien que le mode de réalisation préféré présente un levier 34 épousant le profil 4 de l'appareil 1 quand il ferme le dispositif de raccordement 10, actionné par un tournevis 50 pour ouvrir la borne et manuellement pour la refermer, d'autres options sont possibles, dans lesquelles le levier 34 peut être saisi à la main pour l'ouverture et/ou n'a qu'une deuxième position stable de fermeture. Cependant, le mode présenté offre pour avantages supplémentaires de faciliter le raccordement en tenant le câble 9 d'une main et en fermant la borne de l'autre, d'accepter des grosses sections de conducteurs 9, pour lesquelles les moyens 30 faisant action sur le ressort 14 ne peuvent être actionnés qu'avec un levier important à l'ouverture. Par ailleurs, l'utilisation d'un outil 50 pour ouvrir le dispositif de raccordement 10 nécessite une action consciente et évite les débranchements par inadvertance.Although the preferred embodiment has a lever 34 conforming to the profile 4 of the apparatus 1 when it closes the connection device 10, actuated by a screwdriver 50 to open the terminal and manually to close it, other options are possible. , in which the lever 34 can be grasped by hand for opening and / or has only a second stable position of closure. However, the presented mode offers additional advantages of facilitating the connection by holding the cable 9 with one hand and closing the terminal of the other, to accept large conductor sections 9, for which the means 30 acting on the spring 14 can be operated with a large lever on opening. Furthermore, the use of a tool 50 to open the connection device 10 requires conscious action and avoids inadvertent disconnections.

De préférence, dans la deuxième position ouverte, la mise en place d'un plastron n'est pas possible, le levier 34 faisant saillie hors de l'enveloppe du boîtier 2. Notamment, il peut être préférable de livrer les appareils 1 avec les leviers 34 dans la deuxième position ouverte, de façon à ce que la fermeture manuelle soit requise et donc l'oubli de connexions minimisé : ainsi, la réception de l'installation ne peut être réalisée que si les serrages sont effectifs. Alternativement, ou en supplément, des moyens peuvent être prévus pour repérer rapidement la fermeture des leviers 34, c'est-à-dire le serrage des bornes 10 : par exemple, sur la partie saillante du levier 34 invisible dans la première position, il est possible de mettre un indicateur 34B (figure 4), notamment une couleur vive absente des boîtiers 2 habituels, qui permet de localiser immédiatement les bornes éventuellement non serrées.Preferably, in the second open position, the establishment of a plastron is not possible, the lever 34 protruding from the casing of the housing 2. In particular, it may be preferable to deliver the devices 1 with the levers 34 in the second open position, so that the manual closure is required and thus the minimization of connections minimized: thus, the reception of the installation can be achieved only if the tightenings are effective. Alternatively, or in addition, means can be provided to quickly identify the closure of the levers 34, that is to say the tightening of the terminals 10: for example, on the projecting portion of the lever 34 invisible in the first position, it is possible to put a 34B indicator ( figure 4 ), including a bright color absent from the usual housings 2, which can immediately locate the terminals possibly not tight.

Tel qu'illustré en figure 4, certains appareils électriques 1 comprennent deux orifices 82 de connexion pour un évidement 7 et une plage conductrice 12. De préférence, le dispositif de raccordement 10 selon l'invention comprend alors deux ressorts 14 pour le maintien et le serrage des câbles 9 indépendamment l'un de l'autre ; les deux ressorts 141, 142 sont avantageusement identiques et parallèles, leurs passages 181, 182 venant face à chacun des orifices dans la deuxième position comprimée. Le dispositif de raccordement 10 comprend par contre un seul organe de compression 30, et un unique écran 40 ; de préférence, l'écran de protection 40 est muni de moyens de guidage 48, notamment un rail se mettant en place entre les deux parties de manoeuvre 20 des ressorts 14i.As illustrated in figure 4 certain electrical apparatuses 1 comprise two connection orifices 8 2 for a recess 7 and a conductive pad 12. Preferably, the connection device 10 according to the invention then comprises two springs 14 for holding and clamping the cables 9 independently of each other. one of the other; the two springs 14 1 , 14 2 are advantageously identical and parallel, their passages 18 1 , 18 2 facing each of the orifices in the second compressed position. On the other hand, the connecting device 10 comprises a single compression member 30 and a single screen 40; preferably, the protective screen 40 is provided with guide means 48, in particular a rail which is positioned between the two operating parts 20 of the springs 14 i .

Bien que l'invention ait été décrite en référence à un appareil de protection électrique 1, elle ne s'y limite pas : d'autres éléments peuvent être concernés. En particulier, l'invention s'adapte à un système élastique 14 de borne 10 actionné par un levier 34, que le levier 34 présente deux positions stables ou non. De plus, la forme des moyens faisant ressort 14 peut être modifiée selon la gamme et la conception de l'appareil 1 : la présence dans ce type de borne d'un écran 40 placé entre les moyens d'actionnement 30 et les moyens de compression 14 afin d'achever la connexion permet de se conformer aux critères d'étanchéité les plus stricts, et d'empêcher la pénétration d'objets de 1 mm qui pourraient venir en contact avec la lame ressort 20 sous tension de la borne. L'écran 40 quant à lui peut être mobile en translation ou en rotation suivant la conception des autres composants du dispositif 10. De même, le sens de pivotement du levier 34 peut être inversé, mais l'option préférée permet d'utiliser l'espace libre face à l'appareil 1 pour insérer et faire pivoter l'outil 50, de mettre en place des moyens 34B pour visualiser l'état de fermeture ou non du levier 34, et d'empêcher la pose définitive du plastron en cas de lacune de branchement.Although the invention has been described with reference to an electrical protection apparatus 1, it is not limited thereto: other elements may be concerned. In particular, the invention adapts to an elastic system 14 of terminal 10 actuated by a lever 34, that the lever 34 has two stable positions or not. In addition, the shape of the spring means 14 can be varied according to the range and the design of the apparatus 1: the presence in this type of terminal of a screen 40 placed between the actuating means 30 and the compression means 14 to complete the connection makes it possible to comply with the strictest sealing criteria, and to prevent the penetration of objects 1 mm which could come into contact with the leaf spring 20 under tension of the terminal. The screen 40 meanwhile can be movable in translation or in rotation according to the design of the other components of the device 10. Similarly, the pivoting direction of the lever 34 can be reversed, but the preferred option allows to use the free space in front of the apparatus 1 to insert and rotate the tool 50, to set up means 34B to visualize the state of closure or not of the lever 34, and to prevent the final installation of the plastron in case of lack of connection.

Claims (11)

Dispositif de raccordement (10) pour un appareil électrique (1) comprenant : - une plage de raccordement (12) de l'appareil (1) ; - un élément de maintien (16) d'un conducteur (9) muni d'un passage (18) sensiblement perpendiculaire à la plage de raccordement (12) ; - des moyens faisant ressort (14) couplés à l'élément de maintien (16); - un organe de compression (30), formé de façon unitaire par un levier de préhension (34) et une came pivotante (32), pouvant agir sur une partie de manoeuvre (20) des moyens faisant ressort (14) et mobiliser l'élément de maintien (16) sensiblement orthogonalement à la plage de raccordement (12) entre une première position de repos dans laquelle la plage de raccordement (12) est localisée sensiblement à une première extrémité du passage (18) et une deuxième position de compression, dans laquelle le passage (18) est dégagé et un conducteur (9) traversant le passage (18) au niveau de la première extrémité se trouve parallèle à la plage de raccordement (12) ; - un écran (40) servant d'interface entre la partie de manoeuvre (20) des moyens faisant ressort (14) et l'organe de compression (30), ledit écran (40) étant mobile par rapport aux moyens faisant ressort (14) et à l'organe de compression (30). Connecting device (10) for an electrical apparatus (1) comprising: - a connection range (12) of the apparatus (1); - a holding element (16) of a conductor (9) provided with a passage (18) substantially perpendicular to the connection pad (12); spring means (14) coupled to the holding member (16); - A compression member (30), formed unitarily by a gripping lever (34) and a pivoting cam (32), acting on a maneuvering part (20) of the spring means (14) and mobilizing the holding member (16) substantially orthogonal to the connection pad (12) between a first rest position in which the connection pad (12) is located substantially at a first end of the passage (18) and a second compression position, wherein the passage (18) is clear and a conductor (9) passing through the passage (18) at the first end is parallel to the connection pad (12); a screen (40) serving as an interface between the operating part (20) of the spring means (14) and the compression member (30), said screen (40) being movable relative to the spring means (14); ) and the compression member (30). Dispositif selon la revendication 1 dans lequel les moyens faisant ressort (14) comprennent une branche d'appui (22) parallèle à la plage de raccordement (12), la partie de manoeuvre (20) reliée à la branche d'appui (22) par un coude et couplée de façon unitaire à l'élément de maintien (16).Device according to Claim 1, in which the spring means (14) comprise a bearing branch (22) parallel to the connection pad (12), the maneuvering part (20) connected to the support arm (22). by a bend and unitarily coupled to the holding member (16). Dispositif selon la revendication 2 dans lequel la branche d'appui (22) traverse le passage (18) de l'élément de maintien (16) et l'élément de maintien (16) comprend une bavette (26) d'obturation.Device according to claim 2 wherein the support leg (22) through the passage (18) of the holding member (16) and the holding member (16) comprises a flap (26) shutter. Dispositif selon l'une des revendications 1 à 3 dans lequel l'écran (40) comprend des moyens de rappel (44) le sollicitant vers un contact avec la came (32).Device according to one of claims 1 to 3 wherein the screen (40) comprises biasing means (44) urging it to a contact with the cam (32). Dispositif selon l'une des revendications 1 à 4 comprenant deux éléments de maintien (16) parallèles pour le passage de deux conducteurs (9).Device according to one of claims 1 to 4 comprising two parallel holding elements (16) for the passage of two conductors (9). Dispositif selon la revendication 5 dans lequel les moyens faisant ressort (141, 142) sont dédoublés, et comprenant un seul organe de compression (30) et un seul écran (40) agissant sur les deux moyens faisant ressort (141 142) conjointement.Apparatus according to claim 5 wherein the spring means (14 1 , 14 2 ) are split, and comprising a single compression member (30) and a single screen (40) acting on the two spring means (14 1 14 2 ) jointly. Dispositif selon l'une des revendications 1 à 6 dans lequel le levier de préhension (34) comprend un orifice (34A) pour mettre en place un outil (50).Device according to one of claims 1 to 6 wherein the gripping lever (34) comprises an orifice (34A) for putting in place a tool (50). Dispositif selon l'une des revendications 1 à 7 dans lequel le levier de préhension (34) et la came pivotante (32) sont unitaires.Device according to one of claims 1 to 7 wherein the gripping lever (34) and the pivoting cam (32) are unitary. Appareil de protection électrique (1) comprenant un boîtier (2) muni d'orifices d'entrée (8) par lesquels sont accessibles des conducteurs de raccordement (6) dans des logements (7), un premier logement (7) au moins étant doté d'un dispositif de raccordement (10) selon l'une des revendications 1 à 8, le levier de préhension (34) dudit dispositif de raccordement (10) étant logé contre le boîtier (2) dans la première position, et faisant saillie du boîtier (2) dans la deuxième position dans laquelle le(s) passage(s) (18) dudit dispositif de raccordement (10) est(sont) face aux orifices (8) du premier logement (7) de l'appareil de protection (1).Electrical protection device (1) comprising a housing (2) provided with inlet openings (8) through which connecting conductors (6) are accessible in housings (7), at least one first housing (7) being equipped with a connecting device (10) according to one of claims 1 to 8, the gripping lever (34) of said connecting device (10) being housed against the housing (2) in the first position and projecting of the housing (2) in the second position in which the passage (s) (18) of said connecting device (10) is (are) facing the orifices (8) of the first housing (7) of the protection (1). Appareil selon la revendication 9 dans lequel le levier de préhension (34) comprend un voyant (34B) visible uniquement dans sa deuxième position.Apparatus according to claim 9 wherein the gripping lever (34) comprises a light (34B) visible only in its second position. Appareil selon l'une des revendications 9 ou 10 comprenant une face avant (4) sensiblement orthogonale à une face (5) comprenant les orifices d'entrée (8), dans lequel le levier de préhension (34) est logé contre la face avant (4) dans la première position, et le pivotement de la première à la deuxième position est réalisé par un mouvement depuis la face avant (4) vers la face (5) comprenant les orifices (8).Apparatus according to one of claims 9 or 10 comprising a front face (4) substantially orthogonal to a face (5) comprising the inlet ports (8), wherein the gripping lever (34) is housed against the front face (4) in the first position, and the pivoting of the first to the second position is effected by a movement from the front face (4) to the face (5) comprising the orifices (8).
EP10354092.8A 2010-02-01 2010-12-20 Elastic clamp connecting terminal with lever Active EP2355249B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1000383A FR2955978A1 (en) 2010-02-01 2010-02-01 ELASTIC LEVER CONNECTION TERMINAL

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EP2355249A1 true EP2355249A1 (en) 2011-08-10
EP2355249B1 EP2355249B1 (en) 2016-06-22

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CN (1) CN102195145B (en)
BR (1) BRPI1100610B1 (en)
ES (1) ES2592928T3 (en)
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RU (1) RU2560088C2 (en)

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EP2889964A1 (en) * 2013-12-30 2015-07-01 Bticino S.P.A. Spring connection terminal with actuation lever
DE102016124891B4 (en) 2016-12-20 2019-03-21 Phoenix Contact Gmbh & Co. Kg Terminal system for connecting at least one electrical line
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DE102013212438A1 (en) 2013-06-27 2014-12-31 Wöhner GmbH & Co. KG Elektrotechnische Systeme Connecting device, in particular switching device, with a spring-loaded terminal and a drive for actuating the spring-loaded terminal
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CN106710977B (en) * 2015-11-12 2018-09-21 上海良信电器股份有限公司 A kind of turbine type connecting terminal
KR102510834B1 (en) * 2016-04-04 2023-03-16 엘에스일렉트릭 (주) Terminal connecting mechanism for molded case circuit breaker
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RU2011103400A (en) 2012-08-10
CN102195145B (en) 2016-01-20
ES2592928T3 (en) 2016-12-02
BRPI1100610A2 (en) 2013-04-30
FR2955978A1 (en) 2011-08-05
EP2355249B1 (en) 2016-06-22
RU2560088C2 (en) 2015-08-20
BRPI1100610B1 (en) 2019-11-05
CN102195145A (en) 2011-09-21

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