EP3333981A1 - Electrical connecting terminal between two conducting elements - Google Patents

Electrical connecting terminal between two conducting elements Download PDF

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Publication number
EP3333981A1
EP3333981A1 EP17206089.9A EP17206089A EP3333981A1 EP 3333981 A1 EP3333981 A1 EP 3333981A1 EP 17206089 A EP17206089 A EP 17206089A EP 3333981 A1 EP3333981 A1 EP 3333981A1
Authority
EP
European Patent Office
Prior art keywords
connector
screw
stage
terminal
conductive element
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
EP17206089.9A
Other languages
German (de)
French (fr)
Other versions
EP3333981B1 (en
Inventor
Jean-Luc Bouchard
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
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Filing date
Publication date
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP3333981A1 publication Critical patent/EP3333981A1/en
Application granted granted Critical
Publication of EP3333981B1 publication Critical patent/EP3333981B1/en
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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
    • 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
    • H01R9/2416—Means for guiding or retaining wires or cables connected to terminal blocks
    • 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
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • 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
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H01R4/44—Clamping areas on both sides of screw
    • 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
    • H01R9/2425—Structural association with built-in components
    • 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
    • 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
    • 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
    • H01R9/2625—Clip-on terminal blocks for side-by-side rail- or strip-mounting with built-in electrical component
    • H01R9/2633—Clip-on terminal blocks for side-by-side rail- or strip-mounting with built-in electrical component with built-in switch

Definitions

  • the invention relates to an electrical connection terminal between two conductive elements.
  • the invention also relates to a connection module for an electrical contactor comprising such a terminal.
  • Electrical contactors are used in motor starter assemblies to drive industrial electric motors, such as asynchronous motors.
  • Such an electrical assembly typically includes a contactor for selectively interrupting the supply of the electrical load in response to a control signal.
  • the connection module comprises a plurality of power conductors, in particular a conductor for each phase of the electric current.
  • Each of the power conductors is intended to be connected, on the one hand, with a power driver complementary to the contactor and, on the other hand, with an external electrical cable.
  • the connection between the power conductors and the electrical cables is made by means of the electrical connection terminal of the module.
  • connection module is equipped with integrated measuring means, comprising for example a "Rogowski" sensor, for measuring the intensity of the electric current.
  • integrated measuring means comprising for example a "Rogowski” sensor, for measuring the intensity of the electric current.
  • the terminal comprises a housing defining three chambers, each corresponding to an electrical pole. Each room has a connector for the electrical connection of the cables. Each connector comprises a cage and a thread clamp, movable in translation, one towards the other, when tightening a screw. The slider is arranged inside the cage and a fixed conductive wall separates the cage in two.
  • this type of elevator shaft terminals can not be used for reasons of compactness.
  • the invention more particularly intends to remedy, by proposing a compact electrical connection terminal, making it possible to offer a satisfactory electrical connection whatever the geometry and the section of the power conductor to be connected.
  • the invention relates to an electrical connection terminal between two conductive elements, this terminal comprising at least one clamping screw, comprising a head and a thread, a connector for each screw, each connector comprising a first stage, delimiting a tapping for receiving the clamping screw, and a second stage, comprising a hole for passage of the screw, aligned with the tapping, the first stage being movable relative to the second stage parallel to an axis of the screw, a receiving housing a first conductive element between the two stages of the connector.
  • the terminal comprises a stirrup, mounted around each screw, between the head and the thread of the screw.
  • the terminal also includes a housing for receiving a second conductive element between the stirrup and the connector.
  • the second floor is disposed between the first floor and the stirrup.
  • the two stages of the connector are in one piece.
  • DE 195 13 281 A1 discloses an electrical screw terminal, in which the connector for the screw comprises a first stage delimiting a thread for receiving the screw and a second stage belonging to a fixed frame and delimiting a hole for the passage of the screw, aligned with the tapping.
  • the first stage is movable relative to the second stage parallel to an axis of the screw.
  • the terminal defines a housing for receiving a first conductive element between the two stages of the connector and a second housing for a second conductive element between the screw head and the connector.
  • the screw used is not a caliper screw.
  • the two floors are not all in one piece.
  • the tightening of the screw causes the clamping of the first conductive element between the stirrup and the connector and the clamping of the second conductive element between the two stages of the connector.
  • the second conductive element is then pinched between the two stages of the connector, which makes it possible to establish a reliable electrical connection between the connector and the second conductive element.
  • the connector has a shape adapted to an electrical connection with a cable, in this case the first conductive element, so that the first conductive element and the second conductive element can be connected by means of a screw-stirrup assembly.
  • the invention finally relates to an assembly comprising an electric contactor and a connection module as described above.
  • connection module 2 for an electric contactor (not shown).
  • the connection module 2 is in the form of a housing that is just reported on the contactor.
  • the connection module 2 comprises in the example three first conductive elements, including three conductors power 4.1, 4.2 and 4.3, each dedicated to a phase of the electric current (positive, negative and neutral).
  • the module 2 comprises integrated measurement means (not shown) for measuring one or more electrical parameters, such as the voltage or the intensity of the electric current.
  • these means include a Rogowski sensor.
  • the measurements are in practice used to control a control automation of the contactor (not shown).
  • the driver 4.3 is represented alone at the figure 5 .
  • Each of the power conductors 4.1 to 4.3 comprises a central portion 41 and two branches 43 and 45, which extend perpendicularly to the central portion 41, in opposite directions.
  • the branch 45 comprises a fork-shaped free end 40 intended to be connected with a conductive part of the contactor (not shown).
  • connection module 2 comprises an electrical connection terminal 20, for connecting each of the first conductive elements 4.1, 4.2 and 4.3 respectively with a second conductive element 12.1, 12.2 or 12.3.
  • each of the second conductive elements 12.1, 12.2 and 12.3 is a circular section cable.
  • connection terminal 20 comprises three compartments, respectively 20.1, 20.2 and 20.3. Each of the compartments 20.1, 20.2 and 20.3 of the electrical connection terminal 20 comprises a clamping screw 6, a stirrup 8 and a connector 10.
  • the clamping screw 6 defines a central axis X6. It comprises a threaded portion 60, a screw head 62 and a hole 64 provided for the passage of a spanner or a screwdriver (not shown).
  • the screw 6 also comprises a section-shrinking portion 66 disposed between the head 62 and the thread 60.
  • the stirrup 8 is mounted around the screw 6, in particular at the portion 66, and comprises two wings 8a and 8b, which extend on either side of the screw 6, in a direction inclined with respect to the axis X6 of the screw 6.
  • the stirrup 8 is fixed in translation along the screw 6.
  • it is mounted with a radial clearance around the screw 6, so as to be able to tilt on one side or the other. This advantageously allows to tighten cables of different section, on either side of the screw 6, without the cable of smaller section is less tight.
  • the connector 10 is made of an electrically conductive material. It is arranged at one end of the screw 6 opposite to the screw head 62. It comprises a first stage 10a delimiting a tapping 102 for receiving the clamping screw 6. The tapping 102 is centered on an axis coinciding with the X6 axis and has a screw thread complementary to that of the thread 60 of the screw.
  • Connector 10 also includes a second stage 10b, which is arranged between the first stage 10a and the stirrup 8.
  • the second stage 10b comprises a hole 100 for the passage of the screw 6, which is aligned with the tapping 102 along the axis X6.
  • the hole 100 has a larger diameter than that of the screw 6.
  • the first stage 10a is movable relative to the second stage 10b in a direction parallel to the axis of the screw X6, under the effect of the tightening of the screw 6 .
  • the two stages 10a and 10b of the connector 10 are parallel and are perpendicular to the axis of the screw X6.
  • the stirrup 8 and the second stage 10b of the connector 10 define between them at least one, preferably two housings 24, each configured for a first conductive element, among the cables 12.1, 12.2 and 12.3.
  • the housings 24 are respectively defined between the flanges 8a and 8b of the stirrup and the second stage 10b of the connector 10. In the example, only one of the two housings receives a cable. However, even if this configuration is not shown in the figures, each compartment of the terminal 20 makes it possible to connect at least two cables, on either side of the screw 6, with the first corresponding conductive element, among the elements 4.1, 4.2 and 4.3.
  • the two stages 10a and 10b of the connector 10 define between them a housing 106 for receiving a second conductive element, among the power conductors 4.1, 4.2 and 4.3. More specifically, the housing 106 is configured to receive the free end of the branch 43 of the corresponding power conductor.
  • the two stages 10a and 10b of the connector 10 are in one piece.
  • the connector 10 is C-shaped, the two stages 10a and 10b of the connector 10 then forming the two parallel branches of C.
  • connection terminal 20 comprises a seat 28 on which the connector 10 rests.
  • This seat 28 is configured to prevent the displacement of the first stage 10a in an axial direction opposite to the second stage 10b during the tightening of the screw 6.
  • connection terminal 20 also comprises, for each compartment, a hole 22 for the passage of a wrench or a screwdriver and a reinforcement 26, which is arranged below the connector 10, on the opposite side to the stirrup 8, and which is provided to receive the screw 6 during tightening.
  • the screw 6 passes through the conductive element 4.1, 4.2 and 4.3.
  • the conductive element 4.2 comprises a hole 44 for the passage of the screw 6 and, as visible in FIGS. figures 3 and 5 , elements 4.1 and 4.2 include a recess 42 for the passage of the screw. This recess is provided at the free end of the branch 43.
  • the first stage 10a rests against the seat 28 and the screw 6 slides through the stage 10a.
  • the electrical connection terminal 20 is completely independent, that is to say does not form part of a connection module for contactor.
  • connection terminal 20 comprises a compartment number other than three.
  • connection terminal 20 may comprise a single compartment or only two compartments.
  • each connector 10 may be configured to receive a plurality of conductive elements.
  • the stages 10a and 10b of the connector 10 are disjoint.
  • the stage 10b is then immobilized in translation along the axis X6, for example fixed to the terminal 20.

Abstract

L'invention concerne une borne de connexion électrique entre deux éléments conducteurs (4.2, 12.2), cette borne comprenant au moins une vis de serrage, comprenant une tête et un filetage, un connecteur pour chaque vis, chaque connecteur comprenant un premier étage, délimitant un taraudage de réception de la vis de serrage, et un deuxième étage, comprenant un trou de passage de la vis, aligné avec le taraudage, le premier étage étant mobile par rapport au deuxième étage parallèlement à un axe (X6) de la vis, un logement de réception d'un premier élément conducteur entre les deux étages du connecteur, et caractérisé en ce que la borne comprend un étrier, monté autour de chaque vis, entre la tête et le filetage de la vis, la borne comprend un logement de réception d'un second élément conducteur entre l'étrier et le connecteur, le deuxième étage est disposé entre le premier étage et l'étrier, et les deux étages du connecteur sont d'un seul tenant.

Figure imgaf001
The invention relates to an electrical connection terminal between two conductive elements (4.2, 12.2), this terminal comprising at least one clamping screw, comprising a head and a thread, a connector for each screw, each connector comprising a first stage, delimiting a thread for receiving the tightening screw, and a second stage comprising a hole for passing the screw, aligned with the tapping, the first stage being movable relative to the second stage parallel to an axis (X6) of the screw, a housing for receiving a first conductive element between the two stages of the connector, and characterized in that the terminal comprises a stirrup, mounted around each screw, between the head and the thread of the screw, the terminal comprises a housing of receiving a second conductive element between the stirrup and the connector, the second stage is disposed between the first stage and the stirrup, and the two stages of the connector are in one piece.
Figure imgaf001

Description

L'invention concerne une borne de connexion électrique entre deux éléments conducteurs.The invention relates to an electrical connection terminal between two conductive elements.

L'invention concerne également un module de raccordement pour un contacteur électrique comprenant une telle borne. Les contacteurs électriques sont utilisés dans les ensembles de départ moteur pour piloter des moteurs électriques industriels, tels que des moteurs asynchrones. Un tel ensemble électrique comporte typiquement un contacteur pour interrompre sélectivement l'alimentation de la charge électrique en réponse à un signal de commande.The invention also relates to a connection module for an electrical contactor comprising such a terminal. Electrical contactors are used in motor starter assemblies to drive industrial electric motors, such as asynchronous motors. Such an electrical assembly typically includes a contactor for selectively interrupting the supply of the electrical load in response to a control signal.

Le module de raccordement comprend plusieurs conducteurs de puissance, notamment un conducteur pour chaque phase du courant électrique. Chacun des conducteurs de puissance est destiné à être connecté, d'une part, avec un conducteur de puissance complémentaire du contacteur et, d'autre part, avec un câble électrique extérieur. La connexion entre les conducteurs de puissance et les câbles électriques est effectuée au moyen de la borne de connexion électrique du module.The connection module comprises a plurality of power conductors, in particular a conductor for each phase of the electric current. Each of the power conductors is intended to be connected, on the one hand, with a power driver complementary to the contactor and, on the other hand, with an external electrical cable. The connection between the power conductors and the electrical cables is made by means of the electrical connection terminal of the module.

Avantageusement, le module de raccordement est équipé de moyens de mesure intégrés, comprenant par exemple un capteur « Rogowski », pour mesurer l'intensité du courant électrique. Ces mesures sont en pratique utilisées pour piloter un automatisme de commande du contacteur. Ce type de capteur impose une géométrie de conducteur de puissance particulière, dont la forme n'est pas adaptée pour réaliser une connexion électrique avec une borne de serrage classique à étrier, telle que divulguée notamment dans EP-A-0 148 056 . Effectivement, il peut exister une différence de section importante entre le conducteur de puissance et le câble électrique, si bien qu'il est difficile de positionner le câble au contact du conducteur lors du serrage. La connexion électrique n'est alors pas établie, ou du moins très mauvaise.Advantageously, the connection module is equipped with integrated measuring means, comprising for example a "Rogowski" sensor, for measuring the intensity of the electric current. These measurements are in practice used to control a control automation of the contactor. This type of sensor imposes a particular power conductor geometry, the shape of which is not adapted to make an electrical connection with a conventional clamping clamp terminal, as disclosed in particular in EP-A-0 148 056 . Indeed, there may be a significant section difference between the power conductor and the electric cable, so that it is difficult to position the cable in contact with the driver during tightening. The electrical connection is not established, or at least very bad.

En alternative aux bornes à étriers, il existe des bornes dites à cage d'ascenseur, comme décrit par exemple dans FR-A-2 740 265 . Dans ce document, la borne comprend un boîtier définissant trois chambres, correspondants chacune à un pôle électrique. Chacune des chambres comprend un connecteur pour la connexion électrique des câbles. Chaque connecteur comprend une cage et un coulisseau serre-fil, mobile en translation, l'un en direction de l'autre, lors du serrage d'une vis. Le coulisseau est agencé à l'intérieur de la cage et une paroi conductrice fixe sépare la cage en deux. Toutefois, ce type de bornes à cage d'ascenseur ne peut pas être utilisé pour des raisons de compacité.As an alternative to the clamp terminals, there are terminals called elevator shaft, as described for example in FR-A-2,740,265 . In this document, the terminal comprises a housing defining three chambers, each corresponding to an electrical pole. Each room has a connector for the electrical connection of the cables. Each connector comprises a cage and a thread clamp, movable in translation, one towards the other, when tightening a screw. The slider is arranged inside the cage and a fixed conductive wall separates the cage in two. However, this type of elevator shaft terminals can not be used for reasons of compactness.

C'est à ces inconvénients qu'entend plus particulièrement remédier l'invention, en proposant une borne de connexion électrique compacte, permettant d'offrir une connexion électrique satisfaisante quelle que soit la géométrie et la section du conducteur de puissance à connecter.It is to these drawbacks that the invention more particularly intends to remedy, by proposing a compact electrical connection terminal, making it possible to offer a satisfactory electrical connection whatever the geometry and the section of the power conductor to be connected.

A cet effet, l'invention concerne une borne de connexion électrique entre deux éléments conducteurs, cette borne comprenant au moins une vis de serrage, comprenant une tête et un filetage, un connecteur pour chaque vis, chaque connecteur comprenant un premier étage, délimitant un taraudage de réception de la vis de serrage, et un deuxième étage, comprenant un trou de passage de la vis, aligné avec le taraudage, le premier étage étant mobile par rapport au deuxième étage parallèlement à un axe de la vis, un logement de réception d'un premier élément conducteur entre les deux étages du connecteur. Conformément à l'invention, la borne comprend un étrier, monté autour de chaque vis, entre la tête et le filetage de la vis. La borne comprend également un logement de réception d'un second élément conducteur entre l'étrier et le connecteur. Le deuxième étage est disposé entre le premier étage et l'étrier. Les deux étages du connecteur sont d'un seul tenant.To this end, the invention relates to an electrical connection terminal between two conductive elements, this terminal comprising at least one clamping screw, comprising a head and a thread, a connector for each screw, each connector comprising a first stage, delimiting a tapping for receiving the clamping screw, and a second stage, comprising a hole for passage of the screw, aligned with the tapping, the first stage being movable relative to the second stage parallel to an axis of the screw, a receiving housing a first conductive element between the two stages of the connector. According to the invention, the terminal comprises a stirrup, mounted around each screw, between the head and the thread of the screw. The terminal also includes a housing for receiving a second conductive element between the stirrup and the connector. The second floor is disposed between the first floor and the stirrup. The two stages of the connector are in one piece.

DE 195 13 281 A1 divulgue une borne de connexion électrique à vis, dans laquelle le connecteur pour la vis comprend un premier étage délimitant un taraudage de réception de la vis et un deuxième étage appartenant à un bâti fixe et délimitant un trou de passage de la vis, aligné avec le taraudage. Le premier étage est mobile par rapport au deuxième étage parallèlement à un axe de la vis. La borne définit un logement de réception d'un premier élément conducteur entre les deux étages du connecteur et un deuxième logement d'un second élément conducteur entre la tête de vis et le connecteur. La vis utilisée n'est pas une vis à étrier. En outre, les deux étages ne sont pas d'un seul tenant. DE 195 13 281 A1 discloses an electrical screw terminal, in which the connector for the screw comprises a first stage delimiting a thread for receiving the screw and a second stage belonging to a fixed frame and delimiting a hole for the passage of the screw, aligned with the tapping. The first stage is movable relative to the second stage parallel to an axis of the screw. The terminal defines a housing for receiving a first conductive element between the two stages of the connector and a second housing for a second conductive element between the screw head and the connector. The screw used is not a caliper screw. In addition, the two floors are not all in one piece.

Grâce à l'invention, le serrage de la vis entraine le serrage du premier élément conducteur entre l'étrier et le connecteur et le serrage du deuxième élément conducteur entre les deux étages du connecteur. Le deuxième élément conducteur est alors pincé entre les deux étages du connecteur, ce qui permet d'établir une connexion électrique fiable entre le connecteur et le deuxième élément conducteur. Le connecteur présente une forme adaptée à une connexion électrique avec un câble, en l'occurrence le premier élément conducteur, si bien que le premier élément conducteur et le deuxième élément conducteur peuvent être mis en connexion au moyen d'un assemblage vis-étrier.Thanks to the invention, the tightening of the screw causes the clamping of the first conductive element between the stirrup and the connector and the clamping of the second conductive element between the two stages of the connector. The second conductive element is then pinched between the two stages of the connector, which makes it possible to establish a reliable electrical connection between the connector and the second conductive element. The connector has a shape adapted to an electrical connection with a cable, in this case the first conductive element, so that the first conductive element and the second conductive element can be connected by means of a screw-stirrup assembly.

Selon des aspects avantageux mais non obligatoires de l'invention, une telle borne de connexion électrique peut incorporer une ou plusieurs des caractéristiques suivantes, prises en toute combinaison techniquement admissible :

  • Le connecteur est en forme de C et dans laquelle le premier étage et le deuxième étage du connecteur forment deux branches parallèles du C.
  • La borne comprend un siège de réception du connecteur, ce siège étant configuré pour empêcher le déplacement du premier étage du connecteur selon une direction axiale opposée au deuxième étage.
  • Chaque étrier comprend deux ailes et dans laquelle deux logements sont prévus pour recevoir chacun un second élément conducteur respectif, chaque logement étant défini entre le connecteur et une aile de l'étrier.
According to advantageous but non-mandatory aspects of the invention, such an electrical connection terminal may incorporate one or more of the following features, taken in any technically permissible combination:
  • The connector is C-shaped and in which the first stage and the second stage of the connector form two parallel branches of C.
  • The terminal includes a connector receiving seat, which seat is configured to prevent movement of the first stage of the connector in an axial direction opposite to the second stage.
  • Each stirrup comprises two wings and in which two housings are provided to each receive a respective second conductive element, each housing being defined between the connector and a wing of the stirrup.

L'invention concerne également un module de raccordement pour un contacteur électrique, ce module comprenant une borne de connexion telle que décrite précédemment.

  • Le module comprend des moyens de mesure intégrés, pour mesurer un ou plusieurs paramètres électriques, comme la tension ou l'intensité du courant électrique.
  • Le module comprend le premier élément conducteur ou chacun des premiers éléments conducteurs.
  • Le premier élément conducteur ou chacun des premiers éléments conducteurs délimite un évidement ou un trou pour le passage de la vis de serrage.
The invention also relates to a connection module for an electric contactor, this module comprising a connection terminal as described above.
  • The module comprises integrated measuring means for measuring one or more electrical parameters, such as the voltage or the intensity of the electric current.
  • The module comprises the first conductive element or each of the first conductive elements.
  • The first conductive element or each of the first conductive elements delimits a recess or a hole for the passage of the clamping screw.

L'invention concerne enfin un ensemble comprenant un contacteur électrique et un module de raccordement tel que décrit précédemment.The invention finally relates to an assembly comprising an electric contactor and a connection module as described above.

L'invention est d'autres avantages de celle-ci apparaîtront plus clairement à la lumière de la description qui va suivre d'un mode de réalisation d'une borne de connexion électrique conforme à son principe, donnée uniquement à titre d'exemple et faite en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue en perspective d'un module comprenant une borne de connexion électrique conforme à l'invention,
  • la figure 2 est une vue selon la flèche II de la figure 1,
  • la figure 3 est une coupe dans le plan de la ligne III-III de la figure 2,
  • la figure 4 est une vue à plus grande échelle de l'encadré IV de la figure 3, et
  • la figure 5 est une vue en perspective d'un élément conducteur appartenant au module.
The invention is other advantages of this will appear more clearly in the light of the following description of an embodiment of an electrical connection terminal according to its principle, given solely by way of example and with reference to the accompanying drawings in which:
  • the figure 1 is a perspective view of a module comprising an electrical connection terminal according to the invention,
  • the figure 2 is a view along arrow II of the figure 1 ,
  • the figure 3 is a section in the plane of line III-III of the figure 2 ,
  • the figure 4 is a larger-scale view of Box IV of the figure 3 , and
  • the figure 5 is a perspective view of a conductive element belonging to the module.

Sur la figure 1 est représenté un module de raccordement 2 pour un contacteur électrique (non représenté). Le module de raccordement 2 se présente sous la forme d'un boîtier que l'on vient rapporter sur le contacteur. Le module de raccordement 2 comprend dans l'exemple trois premiers éléments conducteurs, notamment trois conducteurs de puissance 4.1, 4.2 et 4.3, chacun dédiés à une phase du courant électrique (positif, négatif et neutre).On the figure 1 is shown a connection module 2 for an electric contactor (not shown). The connection module 2 is in the form of a housing that is just reported on the contactor. The connection module 2 comprises in the example three first conductive elements, including three conductors power 4.1, 4.2 and 4.3, each dedicated to a phase of the electric current (positive, negative and neutral).

Avantageusement, le module 2 comprend des moyens de mesure intégrés (non représentés), pour mesurer un ou plusieurs paramètres électriques, comme la tension ou l'intensité du courant électrique. Dans l'exemple, ces moyens incluent un capteur Rogowski. Les mesures sont en pratique utilisées pour piloter un automatisme de commande du contacteur (non représenté).Advantageously, the module 2 comprises integrated measurement means (not shown) for measuring one or more electrical parameters, such as the voltage or the intensity of the electric current. In the example, these means include a Rogowski sensor. The measurements are in practice used to control a control automation of the contactor (not shown).

Le conducteur 4.3 est représenté seul à la figure 5. Chacun des conducteurs de puissance 4.1 à 4.3 comprend une partie centrale 41 et deux branches 43 et 45, qui s'étendent perpendiculairement à la partie centrale 41, selon des directions opposées. La branche 45 comprend une extrémité libre 40 en forme de fourche, destinée à être connectée avec une partie conductrice du contacteur (non représentée).The driver 4.3 is represented alone at the figure 5 . Each of the power conductors 4.1 to 4.3 comprises a central portion 41 and two branches 43 and 45, which extend perpendicularly to the central portion 41, in opposite directions. The branch 45 comprises a fork-shaped free end 40 intended to be connected with a conductive part of the contactor (not shown).

Le module de raccordement 2 comprend une borne de connexion électrique 20, pour connecter chacun des premiers éléments conducteurs 4.1, 4.2 et 4.3 respectivement avec un deuxième élément conducteur 12.1, 12.2 ou 12.3. Dans l'exemple, chacun des deuxièmes éléments conducteurs 12.1, 12.2 et 12.3 est un câble à section circulaire.The connection module 2 comprises an electrical connection terminal 20, for connecting each of the first conductive elements 4.1, 4.2 and 4.3 respectively with a second conductive element 12.1, 12.2 or 12.3. In the example, each of the second conductive elements 12.1, 12.2 and 12.3 is a circular section cable.

La borne de connexion 20 comprend trois compartiments, respectivement 20.1, 20.2 et 20.3. Chacun des compartiments 20.1, 20.2 et 20.3 de la borne de connexion électrique 20 comprend une vis de serrage 6, un étrier 8 et un connecteur 10.The connection terminal 20 comprises three compartments, respectively 20.1, 20.2 and 20.3. Each of the compartments 20.1, 20.2 and 20.3 of the electrical connection terminal 20 comprises a clamping screw 6, a stirrup 8 and a connector 10.

Comme visible à la figure 4, la vis de serrage 6 définit un axe central X6. Elle comprend une partie filetée 60, une tête de vis 62 et un orifice 64 prévu pour le passage d'une clé de serrage ou d'un tournevis (non-représenté). La vis 6 comprend également une partie 66 à rétrécissement de section, disposée entre la tête 62 et le filetage 60.As visible at figure 4 the clamping screw 6 defines a central axis X6. It comprises a threaded portion 60, a screw head 62 and a hole 64 provided for the passage of a spanner or a screwdriver (not shown). The screw 6 also comprises a section-shrinking portion 66 disposed between the head 62 and the thread 60.

L'étrier 8 est monté autour de la vis 6, notamment au niveau de la partie 66, et comprend deux ailes 8a et 8b, qui s'étendent de part et d'autre de la vis 6, selon une direction inclinée par rapport à l'axe X6 de la vis 6. L'étrier 8 est fixe en translation le long de la vis 6. En revanche, il est monté avec un jeu radial autour de la vis 6, de manière à pouvoir basculer d'un côté ou de l'autre. Cela permet avantageusement de serrer des câbles de différente section, de part et d'autre de la vis 6, sans que le câble de plus petite section soit moins serré.The stirrup 8 is mounted around the screw 6, in particular at the portion 66, and comprises two wings 8a and 8b, which extend on either side of the screw 6, in a direction inclined with respect to the axis X6 of the screw 6. The stirrup 8 is fixed in translation along the screw 6. On the other hand, it is mounted with a radial clearance around the screw 6, so as to be able to tilt on one side or the other. This advantageously allows to tighten cables of different section, on either side of the screw 6, without the cable of smaller section is less tight.

Le connecteur 10 est fabriqué dans un matériau électriquement conducteur. II est agencé à une extrémité de la vis 6 opposée à la tête de vis 62. II comprend un premier étage 10a, délimitant un taraudage 102 de réception de la vis de serrage 6. Le taraudage 102 est centré sur un axe confondu avec l'axe X6 et présente un pas de vis complémentaire de celui du filetage 60 de la vis. Le connecteur 10 comprend également un deuxième étage 10b, qui est disposé entre le premier étage 10a et l'étrier 8. Le deuxième étage 10b comprend un trou 100 de passage de la vis 6, qui est aligné avec le taraudage 102 suivant l'axe X6. Le trou 100 a un diamètre plus large que celui de la vis 6. Le premier étage 10a est mobile par rapport au deuxième étage 10b selon une direction parallèle à l'axe de la vis X6, sous l'effet du serrage de la vis 6.The connector 10 is made of an electrically conductive material. It is arranged at one end of the screw 6 opposite to the screw head 62. It comprises a first stage 10a delimiting a tapping 102 for receiving the clamping screw 6. The tapping 102 is centered on an axis coinciding with the X6 axis and has a screw thread complementary to that of the thread 60 of the screw. Connector 10 also includes a second stage 10b, which is arranged between the first stage 10a and the stirrup 8. The second stage 10b comprises a hole 100 for the passage of the screw 6, which is aligned with the tapping 102 along the axis X6. The hole 100 has a larger diameter than that of the screw 6. The first stage 10a is movable relative to the second stage 10b in a direction parallel to the axis of the screw X6, under the effect of the tightening of the screw 6 .

Avantageusement, les deux étages 10a et 10b du connecteur 10 sont parallèles et sont perpendiculaires à l'axe de la vis X6.Advantageously, the two stages 10a and 10b of the connector 10 are parallel and are perpendicular to the axis of the screw X6.

L'étrier 8 et le deuxième étage 10b du connecteur 10 définissent entre eux au moins un, de préférence deux logements 24, configurés chacun pour un premier élément conducteur, parmi les câbles 12.1, 12.2 et 12.3. Les logements 24 sont définis respectivement entre les ailes 8a et 8b de l'étrier et le deuxième étage 10b du connecteur 10. Dans l'exemple, un seul des deux logements reçoit un câble. Toutefois, même si cette configuration n'est pas représentée sur les figures, chaque compartiment de la borne 20 permet de connecter au minimum deux câbles, de part et d'autre de la vis 6, avec le premier élément conducteur correspondant, parmi les éléments 4.1, 4.2 et 4.3.The stirrup 8 and the second stage 10b of the connector 10 define between them at least one, preferably two housings 24, each configured for a first conductive element, among the cables 12.1, 12.2 and 12.3. The housings 24 are respectively defined between the flanges 8a and 8b of the stirrup and the second stage 10b of the connector 10. In the example, only one of the two housings receives a cable. However, even if this configuration is not shown in the figures, each compartment of the terminal 20 makes it possible to connect at least two cables, on either side of the screw 6, with the first corresponding conductive element, among the elements 4.1, 4.2 and 4.3.

Comme visible à la figure 4, les deux étages 10a et 10b du connecteur 10 définissent entre eux un logement 106 de réception d'un deuxième élément conducteur, parmi les conducteurs de puissance 4.1, 4.2 et 4.3. Plus précisément, le logement 106 est configuré pour recevoir l'extrémité libre de la branche 43 du conducteur de puissance correspondant.As visible at figure 4 , the two stages 10a and 10b of the connector 10 define between them a housing 106 for receiving a second conductive element, among the power conductors 4.1, 4.2 and 4.3. More specifically, the housing 106 is configured to receive the free end of the branch 43 of the corresponding power conductor.

Avantageusement, les deux étages 10a et10b du connecteur 10 sont d'un seul tenant. Notamment, le connecteur 10 est en forme de C, les deux étages 10a et 10b du connecteur 10 formant alors les deux branches parallèles du C.Advantageously, the two stages 10a and 10b of the connector 10 are in one piece. In particular, the connector 10 is C-shaped, the two stages 10a and 10b of the connector 10 then forming the two parallel branches of C.

Dans l'exemple, la borne de connexion 20 comprend un siège 28 sur lequel le connecteur 10 repose. Ce siège 28 est configuré pour empêcher le déplacement du premier étage 10a selon une direction axiale opposée au deuxième étage 10b lors du serrage de la vis 6.In the example, the connection terminal 20 comprises a seat 28 on which the connector 10 rests. This seat 28 is configured to prevent the displacement of the first stage 10a in an axial direction opposite to the second stage 10b during the tightening of the screw 6.

Comme visible à la figure 3, la borne de connexion 20 comprend également, pour chaque compartiment, un trou 22 pour le passage d'une clé de serrage ou d'un tournevis et un renforcement 26, qui est agencé en dessous du connecteur 10, du côté opposé à l'étrier 8, et qui est prévu pour recevoir la vis 6 lors du serrage.As visible at figure 3 , the connection terminal 20 also comprises, for each compartment, a hole 22 for the passage of a wrench or a screwdriver and a reinforcement 26, which is arranged below the connector 10, on the opposite side to the stirrup 8, and which is provided to receive the screw 6 during tightening.

Dans chaque compartiment, la vis 6 traverse l'élément conducteur 4.1, 4.2 et 4.3. Ainsi, comme visible à la figure 4, l'élément conducteur 4.2 comprend un trou 44 de passage de la vis 6 et, comme visible aux figures 3 et 5, les éléments 4.1 et 4.2 comprennent un évidemment 42 pour le passage de la vis. Cet évidement est prévu à l'extrémité libre de la branche 43.In each compartment, the screw 6 passes through the conductive element 4.1, 4.2 and 4.3. So, as visible at the figure 4 , the conductive element 4.2 comprises a hole 44 for the passage of the screw 6 and, as visible in FIGS. figures 3 and 5 , elements 4.1 and 4.2 include a recess 42 for the passage of the screw. This recess is provided at the free end of the branch 43.

Pour établir une connexion électrique, entre deux éléments conducteurs, par exemple entre les éléments conducteurs 12.2 et 4.2, il convient de positionner l'élément conducteur 12.2 entre l'étrier 8 et le connecteur 10, d'un côté ou de l'autre de la vis 6, puis de serrer la vis 6. Le serrage de la vis 6 entraine le déplacement du premier étage 10a du connecteur 10 en direction du deuxième étage 10b. L'étage 10a décolle alors du siège 28 et l'élément conducteur 4.2 est pincé entre les deux étages 10a et 10b du connecteur 10, ce qui permet d'assurer une connexion électrique fiable entre le conducteur 4.2 et le connecteur 10. En parallèle, l'étrier 8 se déplace axialement en direction du connecteur 10, ce qui a pour effet de serrer l'élément conducteur 12.2 entre l'étrier 8 et le connecteur 10.To establish an electrical connection, between two conductive elements, for example between the conductive elements 12.2 and 4.2, it is necessary to position the conductive element 12.2 between the stirrup 8 and the connector 10, on one side or the other of the the screw 6, then tighten the screw 6. The tightening of the screw 6 causes the displacement of the first stage 10a of the connector 10 towards the second stage 10b. The stage 10a then takes off from the seat 28 and the conductive element 4.2 is clamped between the two stages 10a and 10b of the connector 10, which makes it possible to ensure a reliable electrical connection between the conductor 4.2 and the connector 10. In parallel, the stirrup 8 moves axially towards the connector 10, which has the effect of clamping the conductive element 12.2 between the stirrup 8 and the connector 10.

Lorsque la vis 6 est desserrée, par exemple pour retirer le câble, le premier étage 10a revient en appui contre le siège 28 et la vis 6 coulisse à travers l'étage 10a.When the screw 6 is loosened, for example to remove the cable, the first stage 10a rests against the seat 28 and the screw 6 slides through the stage 10a.

En variante non représentée, la borne de connexion électrique 20 est complètement indépendante, c'est-à-dire ne fait pas partie intégrante d'un module de raccordement pour contacteur.As a variant not shown, the electrical connection terminal 20 is completely independent, that is to say does not form part of a connection module for contactor.

Selon une autre variante non représentée, la borne de connexion 20 comprend un nombre de compartiment différent de trois. En particulier, la borne de connexion 20 peut comprendre un unique compartiment ou seulement deux compartiments.According to another variant not shown, the connection terminal 20 comprises a compartment number other than three. In particular, the connection terminal 20 may comprise a single compartment or only two compartments.

Selon une autre variante non représentée, le logement 106 de chaque connecteur 10 peut être configuré pour recevoir plusieurs éléments conducteurs.According to another variant not shown, the housing 106 of each connector 10 may be configured to receive a plurality of conductive elements.

Selon une autre variante non représentée, les étages 10a et 10b du connecteur 10 sont disjoints. L'étage 10b est alors immobilisé en translation selon l'axe X6, par exemple fixé à la borne 20.According to another variant not shown, the stages 10a and 10b of the connector 10 are disjoint. The stage 10b is then immobilized in translation along the axis X6, for example fixed to the terminal 20.

Les caractéristiques du mode de réalisation et des différentes variantes envisagées ci-dessus peuvent être combinées entre elle pour générer de nouveaux modes de réalisation de l'invention.The characteristics of the embodiment and the different variants envisaged above may be combined with one another to generate new embodiments of the invention.

Claims (9)

Borne de connexion électrique (20) entre deux éléments conducteurs (4.1-4.3, 12.1-12.3), cette borne comprenant : - au moins une vis de serrage (6), comprenant une tête (62) et un filetage (60), - un connecteur (10) pour chaque vis, chaque connecteur comprenant un premier étage (10a), délimitant un taraudage (102) de réception de la vis de serrage, et un deuxième étage (10b), comprenant un trou (100) de passage de la vis, aligné avec le taraudage, le premier étage (10a) étant mobile par rapport au deuxième étage parallèlement à un axe (X6) de la vis, - un logement (106) de réception d'un premier élément conducteur (4.1-4.3) entre les deux étages (10a, 10b) du connecteur, et caractérisé en ce que : - la borne comprend un étrier (8), monté autour de chaque vis (6), entre la tête (62) et le filetage (60) de la vis, - la borne comprend un logement (24) de réception d'un second élément conducteur (12.1-12.3) entre l'étrier (8) et le connecteur (10), - le deuxième étage (10b) est disposé entre le premier étage et l'étrier - les deux étages (10a, 10b) du connecteur sont d'un seul tenant. Electrical connection terminal (20) between two conductive elements (4.1-4.3, 12.1-12.3), this terminal comprising: at least one clamping screw (6) comprising a head (62) and a thread (60), a connector (10) for each screw, each connector comprising a first stage (10a) delimiting a tapping (102) for receiving the clamping screw, and a second stage (10b) comprising a through hole (100). of the screw, aligned with the tapping, the first stage (10a) being movable relative to the second stage parallel to an axis (X6) of the screw, a housing (106) for receiving a first conductive element (4.1-4.3) between the two stages (10a, 10b) of the connector, and characterized in that the terminal comprises a stirrup (8), mounted around each screw (6), between the head (62) and the thread (60) of the screw, the terminal comprises a housing (24) for receiving a second conductive element (12.1-12.3) between the stirrup (8) and the connector (10), the second stage (10b) is arranged between the first stage and the stirrup the two stages (10a, 10b) of the connector are in one piece. Borne selon la revendication 1, dans laquelle le connecteur (10) est en forme de C et dans laquelle le premier étage (10a) et le deuxième étage (10b) du connecteur forment deux branches parallèles du C.The terminal of claim 1, wherein the connector (10) is C-shaped and wherein the first stage (10a) and the second stage (10b) of the connector form two parallel branches of C. Borne selon l'une des revendications précédentes, comprenant un siège (28) de réception du connecteur (10), ce siège étant configuré pour empêcher le déplacement du premier étage (10a) du connecteur selon une direction axiale opposée au deuxième étage.Terminal according to one of the preceding claims, comprising a seat (28) for receiving the connector (10), said seat being configured to prevent the displacement of the first stage (10a) of the connector in an axial direction opposite to the second stage. Borne selon l'une des revendications précédentes, dans laquelle chaque étrier (8) comprend deux ailes (8a, 8b) et dans laquelle deux logements (24) sont prévus pour recevoir chacun un second élément conducteur (12.1-12.3) respectif, chaque logement étant défini entre le connecteur (10) et une aile de l'étrier.Terminal according to one of the preceding claims, wherein each stirrup (8) comprises two wings (8a, 8b) and in which two housings (24) are provided to each receive a second conductive element (12.1-12.3) respective, each housing being defined between the connector (10) and a wing of the caliper. Module de raccordement pour un contacteur électrique, ce module comprenant une borne de connexion selon l'une des revendications précédentes.Connection module for an electric contactor, this module comprising a connection terminal according to one of the preceding claims. Module selon la revendication précédente, comprenant des moyens de mesure intégrés, pour mesurer un ou plusieurs paramètres électriques, comme la tension ou l'intensité du courant électrique.Module according to the preceding claim, comprising integrated measuring means for measuring one or more electrical parameters, such as the voltage or the intensity of the electric current. Module selon la revendication 5 ou 6, comprenant le premier élément conducteur ou chacun des premiers éléments conducteurs (4.1-4.3).Module according to claim 5 or 6, comprising the first conductive element or each of the first conductive elements (4.1-4.3). Module selon la revendication précédente, dans lequel le premier élément conducteur ou chacun des premiers éléments conducteurs (4.1-4.3) délimite un évidement (42) ou un trou (44) pour le passage de la vis de serrage (6).Module according to the preceding claim, wherein the first conductive element or each of the first conductive elements (4.1-4.3) defines a recess (42) or a hole (44) for the passage of the clamping screw (6). Ensemble comprenant un contacteur électrique et un module de raccordement selon l'une des revendications 5 à 8.Assembly comprising an electric contactor and a connection module according to one of Claims 5 to 8.
EP17206089.9A 2016-12-09 2017-12-08 Electrical connecting terminal between two conducting elements Active EP3333981B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1662232A FR3060216B1 (en) 2016-12-09 2016-12-09 ELECTRICAL CONNECTION TERMINAL BETWEEN TWO CONDUCTIVE ELEMENTS

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EP3333981A1 true EP3333981A1 (en) 2018-06-13
EP3333981B1 EP3333981B1 (en) 2021-10-27

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US (1) US10177470B2 (en)
EP (1) EP3333981B1 (en)
JP (1) JP7091062B2 (en)
ES (1) ES2899793T3 (en)
FR (1) FR3060216B1 (en)

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EP2315313A1 (en) * 2009-10-26 2011-04-27 Schneider Electric Industries SAS Assembly for multiple connection in an electrical apparatus

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JPS60123871U (en) * 1984-01-26 1985-08-21 三菱電機株式会社 Screw terminal mechanism
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US4269464A (en) * 1979-07-30 1981-05-26 Howard S. Langdon Tilting terminal clamp
DE19513281A1 (en) * 1995-04-07 1996-10-10 Kopp Heinrich Ag Combination terminal-clamp for automatic cut=outs
EP1505692A1 (en) * 2003-07-22 2005-02-09 Hager Electro Double connecting device for electrical apparatus such as circuit breaker
EP1796214A1 (en) * 2005-12-09 2007-06-13 Schneider Electric Industries Sas Electrical connection terminal and circuit breaker device with such a terminal
EP2315313A1 (en) * 2009-10-26 2011-04-27 Schneider Electric Industries SAS Assembly for multiple connection in an electrical apparatus

Also Published As

Publication number Publication date
FR3060216A1 (en) 2018-06-15
EP3333981B1 (en) 2021-10-27
JP7091062B2 (en) 2022-06-27
ES2899793T3 (en) 2022-03-14
FR3060216B1 (en) 2019-07-19
US10177470B2 (en) 2019-01-08
US20180166803A1 (en) 2018-06-14
JP2018110107A (en) 2018-07-12

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