EP3323170A1 - Freely translatable electrical connection device having protection against damage from foreign bodies - Google Patents

Freely translatable electrical connection device having protection against damage from foreign bodies

Info

Publication number
EP3323170A1
EP3323170A1 EP16748334.6A EP16748334A EP3323170A1 EP 3323170 A1 EP3323170 A1 EP 3323170A1 EP 16748334 A EP16748334 A EP 16748334A EP 3323170 A1 EP3323170 A1 EP 3323170A1
Authority
EP
European Patent Office
Prior art keywords
locking sleeve
terminal block
electrical connection
lug
connection device
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
EP16748334.6A
Other languages
German (de)
French (fr)
Other versions
EP3323170B1 (en
Inventor
Benjamin BOISNIER
Jean-Luc Biesse
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.)
Safran Electrical and Power SAS
Original Assignee
Safran Electrical and Power 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 Safran Electrical and Power SAS filed Critical Safran Electrical and Power SAS
Publication of EP3323170A1 publication Critical patent/EP3323170A1/en
Application granted granted Critical
Publication of EP3323170B1 publication Critical patent/EP3323170B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H01R4/40—Pivotable clamping 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
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/22—End pieces terminating in a spring clip
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
    • 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
    • H01R9/223—Insulating enclosures for terminals

Definitions

  • the invention relates to the field of electrical power connection, and more specifically to the field of terminal blocks to allow a free power connection in motion with an electric cable.
  • the invention relates to an electrical connection device comprising a terminal block for connecting to a terminal of an electric cable so as to allow relative movement in translation between said terminal block and said cable, and in particular, but not exclusively, where the terminal block is part of a set of a terminal block and a busbar.
  • Electrical connection assemblies combining terminal blocks and busbars can be found in many industries, particularly those associated with the field of electricity and the power connection. Such assemblies serve to connect a busbar to an electrical structure, for example an electrical cable, and potentially to other electronic equipment at the same time.
  • the devices of the above examples also suffer from a need for precision and potentially, consequently, voltage problems.
  • the electrical connection (between the terminal block and the lug) can not compensate for the sub-length of the cable.
  • the electrical connection can not compensate for the excess length of the cable.
  • the cable must be adjusted or potentially replaced, resulting in the risk that installers will pull or push hard on the cable to achieve the proper length.
  • This last example allows the relative movement in translation between a terminal block connected to a busbar and a conductive pin. However, the relative rotational movement is prevented.
  • the object of the present invention is therefore to remedy the aforementioned needs and disadvantages by proposing an electrical connection device comprising a terminal block adapted to secure a lug without requiring adjustment of the length of the electric cable connected to the lug, and thus allowing to avoid any problem of tension, and as far as possible, without needing to adjust the orientation of the terminal.
  • Another object is to provide an electrical connection device comprising fewer parts, which is simple to install, and having anti-FOD characteristics, i.e. having a significantly reduced likelihood of being the cause of 'a FOD or to be subjected to a FOD, the anti-FOD characteristics being, especially in the aviation sector, highly sought after.
  • the present invention thus proposes an electrical connection device comprising a terminal block adapted to connect to a terminal of an electric cable, the terminal block comprising a locking sleeve adapted to secure the terminal so as to form an electrical connection allowing the relative movement between the terminal block and the secured lug, characterized in that the locking sleeve comprises a first portion and a second portion, and a pivot member configured so that the first and second portions are pivoted relative to each other to allow the insertion of the terminal and its securing, in that the pivot element of the locking sleeve comprises a pin connected to the second part of the locking sleeve and engaged in the first part of the locking sleeve on the side of the first part substantially opposite the side of the first part opposite the second part of the sleeve of locking, and in that said relative movement allowed is a translational movement.
  • the electrical connection device may further comprise one or more of the following features taken separately or in any possible technical combinations.
  • the sleeve of the terminal block is configured to ensure a translation movement of the lug over a limited length and to prevent its disconnection of the locking sleeve during the translation.
  • said relative movement allowed further comprises rotation.
  • the pin is located in a groove formed in the first part of the locking sleeve, the pin extending along an axis substantially perpendicular to an axis along which the terminal substantially extends.
  • the locking sleeve has a shape complementary to that of the lug to allow its engagement.
  • the locking sleeve defines a cylindrical space between the two first and second parts, the locking sleeve being adapted to allow the engagement of a lug with a cylindrical rod and an enlarged end, and in that the rod has a diameter smaller than that of the locking sleeve and a length greater than that of the locking sleeve.
  • the electrical connection device further comprises a busbar connected to the terminal block to thereby form an assembly of a terminal block and a busbar, and an electric cable with a lug, the lug having a cylindrical rod and an enlarged termination, and in that the shank has a diameter smaller than that of the locking sleeve and a length greater than that of the locking sleeve.
  • the sleeve comprises a fixing means for locking the sleeve.
  • the subject of the invention is also an assembly of an electrical connection device and an insulator, characterized in that it comprises an electrical connection device as described above and an insulator, the device for electrical connection being disposed in the insulator, the insulator being provided with walls, the walls extending substantially parallel to the axis of the terminal block and rising to a height greater than that of the terminal block.
  • the insulator comprises a cover for fitting the device.
  • FIG. 1A represents a perspective view of a terminal block of an electrical connection device according to a first embodiment of the invention
  • FIG. 1B represents an exploded perspective view of the same terminal block of FIG. 1A;
  • FIG. 2 shows a perspective view of the electrical connection device with a terminal secured by the terminal block, according to the first embodiment of the invention
  • FIG. 3 represents a view of an insulator, with an exploded view of the electrical connection device according to the first embodiment, comprising a terminal block and a terminal so as to display the assembly in the insulator;
  • FIG. 4 represents a view from above of several electrical connection devices according to the first embodiment arranged in an insulator, with electronic equipment in contact with the terminals of the devices;
  • FIG. 5 shows a perspective view of several electrical connection devices according to the first embodiment arranged in an insulator as in Figure 4, with a cover of an insulator.
  • FIGS. 1A and 1B illustrate a terminal block 10 of an electrical connection device 100 for engaging and securing a lug of an electric cable, and for providing a means for electrically connecting a busbar and an electric cable.
  • the terminal block 10 is essentially in the form of an elongated body extending along a first axis and comprising a locking sleeve 3 adapted to secure a lug, being further made of electrically conductive material.
  • the terminal block 10 is here made of metal and provided with two through holes 5 to secure it to a structure, for example a NIDA panel (not shown).
  • the locking sleeve 3 comprises a first portion (lower) 1 and a second portion (upper) 2.
  • the first portion 1 is essentially part of the main body of the terminal block 10 and comprises a channel 7 of substantially semi-cylindrical shape facing upwards while the second part 2, which is mounted on the first part 1, comprises a channel 8 of substantially semi-cylindrical shape oriented downwards.
  • the two parts 1, 2 form a locking sleeve 3 substantially formed of two half-shells defining, thanks to the two semi-cylindrical channels 7, 8, a cylindrical space extending substantially along said first axis when it is closed .
  • the two parts 1, 2 of the locking sleeve 3 are intended to be separable, by pivoting, to allow the introduction of the lug of a cable.
  • the locking sleeve 3 is provided with a fixing means for locking the sleeve and securing the terminal of the cable.
  • the fixing means in this case is a screw of the "captive" type 16, passing through a hole 4 on the second part 2 of the locking sleeve 3 by being secured thereto so as to be captive in this sense.
  • the screw 16 is intended to engage in a hole 6 formed in the first part 1 to lock the sleeve 3.
  • FIG. 2 clearly illustrates an electrical connection device 100 formed by a terminal block 10 as described above and a lug 20 of an electric cable 25 attached to said terminal block 10.
  • the lug 20 of the cable 25 is adapted to be engaged and secured by the locking sleeve 3 of the terminal block 10, and to provide a means for electrically connecting the cable 25 and the busbar 12 of the terminal block / busbar assembly of the device 100.
  • the lug 20 comprises a portion 21 connected to the cable 25, a cylindrical rod 22 uniform which extends away from the connected portion 21, and an enlarged stop 23, that is to say having a larger diameter than that of the cylindrical rod 22.
  • the lug 20 is electrically conductive material, for example metal.
  • the two parts 1, 2 of the locking sleeve 3 meet to catch the rod 22 of the lug 20, so as to allow the relative movement in translation and rotation between the terminal block 10 and the lug 20.
  • the rod 22 therefore has a diameter slightly less than that of the locking sleeve 3, but a length which is greater than that of the locking sleeve 3. Consequently, the terminal block 10 allows the lug 20 to be mobile in translation and mobile in rotation with respect to the terminal block 10. More precisely , the movement made in this case between the terminal block 10 and the lug 20 is a translation of limited length (the length of the rod 22 minus the length of the locking sleeve 3 in the zone where it surrounds the rod 22) and the rotation for an unlimited angle (and therefore 360 °).
  • the outside of the rod 22 and the inside of the sleeve 3 have similar shapes, that is to say cylindrical.
  • the locking sleeve 3 and the lug 20 are of cylindrical shape.
  • Other complementary shapes can still be made, for example, a sleeve defining an internal shape of square section adapted for a pod with a square section rod. This then allows the relative translation, but not the relative rotation.
  • a sleeve with an octagonal section and a cylindrical rod may also be suitable.
  • the shapes of the sleeve and the rod allow at least the relative movement in translation, which will be apparent to those skilled in the art.
  • the cylindrical shape is preferable to allow relative movement in translation and rotation at a time.
  • the substantially semi-cylindrical channel 7 oriented upwardly of the first part 1 (bottom) is designed in two sections 7A and 7B.
  • the terminal block 10 also has a shoulder 7C, defined by the two sections 7A, 7B of the channel 7 at the diameter change.
  • This shoulder 7C serves as a stop for cooperating with the widened abutment 23 at the bottom of the rod 22, thus preventing the lug 20 from separating from the terminal block 10.
  • two electrical contact plates 9 are "clipped", that is to say connected with a system of clips, to serve as interfaces between the sleeve 3 and the rod 22. These ensure a good electrical engagement between the terminal block 10 and the terminal 20, while allowing the relative movement between both.
  • the pads 9, multi-contact type are metal, for example copper, beryllium copper, nickel or silver, to allow good conduction. In addition, they have the characteristics of a leaf spring to provide a good uniform contact against the rod 22, and at the same time, a slight resistance against its movement to reduce the game. These pads 9 can also be glued or crimped to sleeve 3.
  • the terminal block 10, including its locking sleeve 3, is made of metal to facilitate the conduction of electricity between the busbar 12 and the cable 25.
  • the terminal block 10, including the sleeve 3 can be made of a material that is not electrically conductive, but then being provided with a means of conduction of electricity, for example a cable connecting the plates 9 to the busbar 12.
  • the lug 20 may be of non-conductive material, but provided with a means of conduction of the electricity from point of contact with the terminal block 10 to the cable 25.
  • the second portion 2 (upper) comprises an arm 13 extending from the side of the terminal block 10 and facing downwards.
  • the arm 13 supports a pin 14 which engages in the first part 1 of the sleeve 3 on the side of the first part 1 substantially opposite the side of the first part 1 opposite the second part 2.
  • the second part 2 is located on the first part 1 (on the high side of the first part 1 which faces the second part 2), but its pin 14 is under the first part 1 (on the side of the first part 1 which is below , which is therefore substantially opposite to the high side of the first part 1).
  • the pin 14 of the first part 1 of the sleeve 3 engages in a groove 11 provided under the first part 1 of the sleeve.
  • the two parts engage and thus pivot relative to each other, the pin 14 forming a pivot member.
  • the axis of the pin 14 is substantially perpendicular to that (first axis) of the terminal block 10. This arrangement thus allows the second portion 2 of the sleeve 3 to pivot in relation to the first part 1 to thereby open and close the sleeve 3.
  • the pin 14 When the terminal block 10 is fixed on an insulator or a panel, the pin 14 will be wedged between the terminal block 10 and the insulator (or panel) and can not leave this groove 11.
  • a returned part may also be provided at the bottom of pin 14. So even though the screw 16 to secure the sleeve 3 is not performed, the two parts 1, 2 of the sleeve 3 will remain together, in that the pin 14 is part of the second part 2 of the sleeve 3.
  • Another aspect of this invention further relates to foreign object damage (or FOD for "Foreign Object Damage”).
  • foreign object damage or FOD for "Foreign Object Damage”
  • the invention has other anti-FOD characteristics, that is to say characteristics to avoid, as much as possible, that the device 100 becomes damaged by a foreign body or is the cause of damage by foreign body.
  • FIG. 3 thus shows a perspective view of an isolator 30 having anti-FOD characteristics, and an exploded view of an electrical connection device 100 making it possible to visualize the manner in which they are mounted in the insulator 30.
  • FIG. 4 illustrates, for its part, several electrical connection devices 100 arranged in an insulator 30, and also with a contactor 45 placed in contact with the terminal blocks 10.
  • each electrical connection device 100 is preferably isolated in its own insulator 30, or in its own compartment in the insulator 30.
  • the insulator 30 is made of insulating composite material, and looks like a housing.
  • FIG. 5 shows a cover 35 of an insulator 30 for enclosing the electrical connection devices 100. In this case, only the cables and the ends of the terminal blocks 10 are exposed at the level of the electrical connection. The ends of the terminal blocks 10 are exposed to enable them to connect to the contactor 45, or other electrical equipment or other terminal blocks.
  • the cover 35 is also made of insulating composite material.
  • the cover 35 is clipped to the insulator 30 and is secured therein with a fastening means, such as a captive screw 36 which engages in a respective hole 37 located on the insulator 30.
  • a fastening means such as a captive screw 36 which engages in a respective hole 37 located on the insulator 30.
  • Co-operating flanges having recesses can be integrated with the insulator 30 and cover 35 to surround and support the cables 25 and potentially to provide resistance against their movement.
  • the isolator 30 electrically isolates the electrical connection devices 100 from their environment and from each other and at the same time reduces the likelihood of causing FOD, or being subjected to FOD.
  • the electrical connection device 100 comprises a few captive screws 16, 36 of known type and which are frequently used, especially where the loss of screws is highly undesirable and can have serious consequences. This type of screw remains connected with part of the parts to be connected.
  • resilient pins 18 may be used to prevent the loss of these screws 15.
  • Such a pin 18 is clearly visible in Figure 1A installed in its own hole through the hole 5 where it is located. a standard screw 15. In the case where such a screw 15 is unscrewed, the pin 18 prevent it out completely and separates from the device. More particularly, the screw head 15 abuts against the pin 18 during its translation, and the screw 15 will thus be contained in its hole 5.
  • each terminal block 10 has two holes 5 on the first lower part 1 to receive screws 15.
  • the screws 15 pass through the terminal block 10, by the busbar 12, by the insulator 30 and secure on a structure, for example a NIDA panel (not shown), to connect all parts together at a time.
  • the terminal block and the terminal are not necessarily metal or conductive material. Nevertheless, it is preferable that they be made of metal, and whatever metal suitable, for example, copper, nickel or silver.
  • electrical contact pads may be incorporated to improve electrical conductivity.
  • such pads may be mounted at the interface between the two parts of the sleeve, and may be integrated with the electrical contact pads on the inside of the sleeve.
  • the sleeve can be designed to secure and provide adequate force to the lug by fully tightening the sleeve (with the pads providing that adequate force) or by adjusting the screw to lock the sleeve. In some cases, once the lug is installed in the correct position, a high resistance against its movement can be applied by tightly tightening the screw.
  • the sleeve may also be designed to open in the opposite direction of insertion of the pod. Even a terminal block with two locking sleeves can be envisaged, for example to receive two lugs of opposite directions to connect two cables together in a straight line.
  • the terminal block has been mainly described as being in a set with a busbar, it can also be associated alternatively with electrical equipment or cable.

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  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Abstract

The invention relates to an electrical connection device (100) including a terminal block (10) suitable for connecting to a lug of an electrical cable. The terminal block (10) comprises a locking sleeve (3) suitable for securing the lug so as to enable relative translation between the terminal block (10) and the lug. The sleeve (3) comprises a first portion (1) and a second portion (2), as well as a pivot element (13, 14) configured such that the first and second portions (1, 2) pivot relative to one another. The pivot element comprises a pin (14) which is connected to the second portion (2) and inserted in the first portion (1) on the side of the first portion (1) substantially opposite the side of the first portion (1) facing the second portion (2). Advantageously, the relative rotational movement is also enabled. A busbar is preferably connected to the terminal block.

Description

DISPOSITIF DE CONNEXION ÉLECTRIQUE LIBRE EN TRANSLATION AVEC PROTECTION CONTRE LES DOMMAGES PAR CORPS ÉTRANGERS  FREE TRANSLATION ELECTRICAL CONNECTION DEVICE WITH PROTECTION AGAINST FOREIGN BODILD DAMAGE
DESCRIPTION DOMAINE TECHNIQUE DESCRIPTION TECHNICAL FIELD
L'invention se rapporte au domaine de la connexion électrique de puissance, et plus spécifiquement au domaine des borniers pour permettre une connexion de puissance libre en mouvement avec un câble électrique. The invention relates to the field of electrical power connection, and more specifically to the field of terminal blocks to allow a free power connection in motion with an electric cable.
Plus particulièrement, l'invention concerne un dispositif de connexion électrique comprenant un bornier pour se connecter à une cosse d'un câble électrique de manière à permettre le mouvement relatif en translation entre ledit bornier et ledit câble, et notamment, mais non exclusivement, où le bornier fait partie d'un ensemble d'un bornier et d'un jeu de barres.  More particularly, the invention relates to an electrical connection device comprising a terminal block for connecting to a terminal of an electric cable so as to allow relative movement in translation between said terminal block and said cable, and in particular, but not exclusively, where the terminal block is part of a set of a terminal block and a busbar.
ÉTAT DE LA TECHNIQUE ANTÉRIEURE STATE OF THE PRIOR ART
Les ensembles de connexion électrique associant des borniers et des jeux de barres se retrouvent dans de nombreuses industries, et particulièrement dans celles associées au domaine de l'électricité et de la connexion de puissance. De tels ensembles servent à connecter un jeu de barres à une structure électrique, par exemple un câble électrique, et potentiellement à d'autres équipements électroniques en même temps. Electrical connection assemblies combining terminal blocks and busbars can be found in many industries, particularly those associated with the field of electricity and the power connection. Such assemblies serve to connect a busbar to an electrical structure, for example an electrical cable, and potentially to other electronic equipment at the same time.
U n exemple d'un tel ensemble bornier/jeu de barres, connecté à un câble électrique, est décrit dans le brevet français FR 2 935 202 Bl de la Demanderesse. Ce document décrit une fiche, montée sur un câble, qui est verrouillée à un bornier sous la forme d'un socle de raccordement connecté à un jeu de barres. Cette connexion empêche le mouvement relatif en translation entre la fiche et le bornier.  An example of such a terminal block / busbar assembly, connected to an electric cable, is described in the French patent FR 2 935 202 B1 of the Applicant. This document describes a plug, mounted on a cable, which is locked to a terminal block in the form of a connection base connected to a busbar. This connection prevents the relative movement in translation between the plug and the terminal block.
Un autre exemple d'un ensemble bornier/jeu de barres est décrit dans le brevet français FR 2 932 613 Bl de la Demanderesse. Ce document décrit une fiche conductrice, montée sur un câble, pour se connecter avec une broche raccordée à un jeu de barres. Cette connexion empêche là encore le mouvement relatif entre la fiche et la broche. Par ailleurs, la fiche et le câble doivent être alignés avec la broche avant l'engagement. Another example of a terminal block / busbar assembly is described in the French patent FR 2 932 613 Bl of the Applicant. This document describes a conductive plug, mounted on a cable, for connecting with a pin connected to a busbar. This connection again prevents relative movement between the plug and the pin. In addition, the plug and the cable must be aligned with the pin before engagement.
Les dispositifs des exemples ci-dessus souffrent en outre d'un besoin en termes de précision et potentiellement, en conséquence, de problèmes de tension. En particulier, si jamais un câble est coupé un peu trop court, la connexion électrique (entre le bornier et la cosse) ne peut pas compenser la sous-longueur du câble. De même, si le câble est rigide et présente une grosse section, la connexion électrique ne peut pas compenser la surlongueur du câble. En conséquence, le câble doit être ajusté ou potentiellement remplacé, ce qui entraîne le risque que les installateurs tireront ou pousseront brutalement sur le câble afin d'atteindre la bonne longueur. En plus de cela, il peut arriver que le câble ait besoin d'être tordu pour que le bornier et la cosse soient alignés avant d'être connectés ensemble. Ces actions peuvent endommager le câble et les raccordements aux deux extrémités du câble.  The devices of the above examples also suffer from a need for precision and potentially, consequently, voltage problems. In particular, if a cable is cut a little too short, the electrical connection (between the terminal block and the lug) can not compensate for the sub-length of the cable. Similarly, if the cable is rigid and has a large section, the electrical connection can not compensate for the excess length of the cable. As a result, the cable must be adjusted or potentially replaced, resulting in the risk that installers will pull or push hard on the cable to achieve the proper length. In addition to this, it may happen that the cable needs to be twisted so that the terminal block and the lug are aligned before being connected together. These actions may damage the cable and the connections at both ends of the cable.
Une autre réalisation d'ensemble bornier/jeu de barres est décrite dans le brevet français FR 2 578 497 Bl. Ce document décrit un joint de dilatation permettant le mouvement relatif en translation entre deux ensembles bornier/jeu de barres grâce à des broches conductrices.  Another embodiment of the terminal block / busbar assembly is described in French patent FR 2 578 497 B1. This document describes an expansion joint allowing relative movement in translation between two terminal block / busbar assemblies by means of conductive pins.
Ce dernier exemple permet le mouvement relatif en translation entre un bornier lié à un jeu de barres et une broche conductrice. Cependant, le mouvement relatif en rotation est empêché.  This last example allows the relative movement in translation between a terminal block connected to a busbar and a conductive pin. However, the relative rotational movement is prevented.
Un autre défaut de ces connexions électriques est lié à l'aspect de dommage par corps étrangers (ou encore FOD pour « Foreign Object Damage » en anglais). Les connexions décrites dans les documents ci-dessus présentent un risque non négligeable d'être la cause d'un FOD ou d'être soumises à un FOD. Plus particulièrement, un écrou qui se dévisse, par exemple, peut se séparer facilement de la connexion électrique et peut causer un FOD. De surcroît, les connexions électriques sont composées de nombreuses parties qui augmentent ce risque et les rendent plus difficiles à installer. En outre, étant donné que les connexions sont exposées, ou ne sont pas assez isolées, il existe un risque que, pendant l'entretien, un outil d'installateur, par exemple un tournevis ou une clé Allen, puisse tomber sur la connexion électrique et provoquer un court-circuit. EXPOSÉ DE L'INVENTION Another defect of these electrical connections is related to the aspect of damage by foreign bodies (or FOD for "Foreign Object Damage" in English). The connections described in the above documents pose a significant risk of being the cause of a FOD or being subjected to a FOD. In particular, a nut that unscrews, for example, can easily separate from the electrical connection and can cause FOD. In addition, the electrical connections are composed of many parts that increase this risk and make them more difficult to install. In addition, since the connections are exposed, or are not sufficiently insulated, there is a risk that, during maintenance, an installer tool, for example a screwdriver or an Allen key, may fall on the electrical connection. and cause a short circuit. STATEMENT OF THE INVENTION
L'objet de la présente invention est par conséquent de remédier aux besoins et inconvénients précités en proposant un dispositif de connexion électrique comprenant un bornier adapté à sécuriser une cosse sans nécessiter de réglage de la longueur du câble électrique raccordé à la cosse, et permettant ainsi d'éviter tout problème de tension, et dans la mesure du possible, sans nécessiter de régler l'orientation de la cosse. Un autre objet est de fournir un dispositif de connexion électrique comprenant moins de pièces, qui soit simple à installer, et ayant des caractéristiques anti-FOD, c'est-à-dire ayant une probabilité réduite de manière significative d'être la cause d'un FOD ou d'être soumis à un FOD, les caractéristiques anti-FOD étant, en particulier dans le secteur de l'aviation, fortement recherchées. The object of the present invention is therefore to remedy the aforementioned needs and disadvantages by proposing an electrical connection device comprising a terminal block adapted to secure a lug without requiring adjustment of the length of the electric cable connected to the lug, and thus allowing to avoid any problem of tension, and as far as possible, without needing to adjust the orientation of the terminal. Another object is to provide an electrical connection device comprising fewer parts, which is simple to install, and having anti-FOD characteristics, i.e. having a significantly reduced likelihood of being the cause of 'a FOD or to be subjected to a FOD, the anti-FOD characteristics being, especially in the aviation sector, highly sought after.
La présente invention propose ainsi un dispositif de connexion électrique comprenant un bornier adapté pour se connecter à une cosse d'un câble électrique, le bornier comportant un manchon de verrouillage adapté pour sécuriser la cosse de manière à former une connexion électrique permettant le mouvement relatif entre le bornier et la cosse sécurisée, caractérisé en ce que le manchon de verrouillage comporte une première partie et une deuxième partie, ainsi qu'un élément pivot configuré de telle sorte que les première et deuxième parties pivotent l'une par rapport à l'autre pour permettre l'introduction de la cosse et sa sécurisation, en ce que l'élément pivot du manchon de verrouillage comporte une broche connectée à la deuxième partie du manchon de verrouillage et engagée dans la première partie du manchon de verrouillage du côté de la première partie sensiblement opposé au côté de la première partie en regard de la deuxième partie du manchon de verrouillage, et en ce que ledit mouvement relatif permis est un mouvement de translation.  The present invention thus proposes an electrical connection device comprising a terminal block adapted to connect to a terminal of an electric cable, the terminal block comprising a locking sleeve adapted to secure the terminal so as to form an electrical connection allowing the relative movement between the terminal block and the secured lug, characterized in that the locking sleeve comprises a first portion and a second portion, and a pivot member configured so that the first and second portions are pivoted relative to each other to allow the insertion of the terminal and its securing, in that the pivot element of the locking sleeve comprises a pin connected to the second part of the locking sleeve and engaged in the first part of the locking sleeve on the side of the first part substantially opposite the side of the first part opposite the second part of the sleeve of locking, and in that said relative movement allowed is a translational movement.
Le dispositif de connexion électrique peut en outre comporter l'une ou plusieurs des caractéristiques suivantes prises isolément ou suivant toutes combinaisons techniques possibles.  The electrical connection device may further comprise one or more of the following features taken separately or in any possible technical combinations.
De préférence, le manchon du bornier est configuré pour assurer un mouvement de translation de la cosse sur une longueur limitée et pour empêcher sa déconnexion du manchon de verrouillage pendant la translation. Préférablement, ledit mouvement relatif permis comporte en outre la rotation.Preferably, the sleeve of the terminal block is configured to ensure a translation movement of the lug over a limited length and to prevent its disconnection of the locking sleeve during the translation. Preferably, said relative movement allowed further comprises rotation.
De façon préférée, la broche est située dans une rainure formée dans la première partie du manchon de verrouillage, la broche s'étendant le long d'un axe sensiblement perpendiculaire à un axe le long duquel le bornier s'étend sensiblement. Preferably, the pin is located in a groove formed in the first part of the locking sleeve, the pin extending along an axis substantially perpendicular to an axis along which the terminal substantially extends.
De préférence, le manchon de verrouillage présente une forme complémentaire de celle de la cosse pour permettre son engagement.  Preferably, the locking sleeve has a shape complementary to that of the lug to allow its engagement.
De préférence, le manchon de verrouillage définit une espace cylindrique entre les deux première et deuxième parties, le manchon de verrouillage étant adapté pour permettre l'engagement d'une cosse avec une tige cylindrique et une terminaison élargie, et en ce que la tige présente un diamètre inférieur à celui du manchon de verrouillage et une longueur supérieure à celle du manchon de verrouillage.  Preferably, the locking sleeve defines a cylindrical space between the two first and second parts, the locking sleeve being adapted to allow the engagement of a lug with a cylindrical rod and an enlarged end, and in that the rod has a diameter smaller than that of the locking sleeve and a length greater than that of the locking sleeve.
De préférence encore, le dispositif de connexion électrique comprend en outre un jeu de barres connecté au bornier pour ainsi former un ensemble d'un bornier et d'un jeu de barres, et un câble électrique avec une cosse, la cosse ayant une tige cylindrique et une terminaison élargie, et en ce que la tige présente un diamètre inférieur à celui du manchon de verrouillage et une longueur supérieure à celle du manchon de verrouillage.  More preferably, the electrical connection device further comprises a busbar connected to the terminal block to thereby form an assembly of a terminal block and a busbar, and an electric cable with a lug, the lug having a cylindrical rod and an enlarged termination, and in that the shank has a diameter smaller than that of the locking sleeve and a length greater than that of the locking sleeve.
De préférence, le manchon comprend un moyen de fixation pour le verrouillage du manchon.  Preferably, the sleeve comprises a fixing means for locking the sleeve.
Par ailleurs, l'invention a encore pour objet un ensemble d'un dispositif de connexion électrique et d'un isolateur, caractérisé en ce qu'il comprend un dispositif de connexion électrique tel que décrit ci-dessus et un isolateur, le dispositif de connexion électrique étant disposé dans l'isolateur, l'isolateur étant pourvu de parois, les parois s'étendant sensiblement parallèlement à l'axe du bornier et montant à une hauteur supérieure à celle du bornier.  Furthermore, the subject of the invention is also an assembly of an electrical connection device and an insulator, characterized in that it comprises an electrical connection device as described above and an insulator, the device for electrical connection being disposed in the insulator, the insulator being provided with walls, the walls extending substantially parallel to the axis of the terminal block and rising to a height greater than that of the terminal block.
De préférence, l'isolateur comprend un capot pour emboîter le dispositif.  Preferably, the insulator comprises a cover for fitting the device.
BRÈVE DESCRIPTION DES DESSINS BRIEF DESCRIPTION OF THE DRAWINGS
Il est décrit par la suite, à titre d'exemple non limitatif, schématiquement et partiellement, un mode de réalisation de l'invention, en se référant aux dessins annexés, dans lesquels : - la figure 1A représente une vue en perspective d'un bornier d'un dispositif de connexion électrique selon un premier mode de réalisation de l'invention ; Next, by way of nonlimiting example, a description is given diagrammatically and partially of an embodiment of the invention, with reference to the appended drawings, in which: FIG. 1A represents a perspective view of a terminal block of an electrical connection device according to a first embodiment of the invention;
- la figure 1B représente une vue éclatée en perspective du même bornier de la figure 1A ;  FIG. 1B represents an exploded perspective view of the same terminal block of FIG. 1A;
- la figure 2 représente une vue en perspective du dispositif de connexion électrique avec une cosse sécurisée par le bornier, selon le premier mode de réalisation de l'invention ;  - Figure 2 shows a perspective view of the electrical connection device with a terminal secured by the terminal block, according to the first embodiment of the invention;
- la figure 3 représente une vue d'un isolateur, avec une vue éclatée du dispositif de connexion électrique selon le premier mode de réalisation, comprenant un bornier et une cosse de sorte à visualiser le montage dans l'isolateur ;  FIG. 3 represents a view of an insulator, with an exploded view of the electrical connection device according to the first embodiment, comprising a terminal block and a terminal so as to display the assembly in the insulator;
- la figure 4 représente une vue de dessus de plusieurs dispositifs de connexion électrique selon le premier mode de réalisation disposés dans un isolateur, avec un équipement électronique en contact avec les borniers des dispositifs ; et  FIG. 4 represents a view from above of several electrical connection devices according to the first embodiment arranged in an insulator, with electronic equipment in contact with the terminals of the devices; and
- la figure 5 représente une vue en perspective de plusieurs dispositifs de connexion électrique selon le premier mode de réalisation disposés dans un isolateur comme selon la figure 4, avec un capot d'un isolateur.  - Figure 5 shows a perspective view of several electrical connection devices according to the first embodiment arranged in an insulator as in Figure 4, with a cover of an insulator.
Dans toutes ces figures, des références identiques peuvent désigner des éléments identiques ou similaires. En outre, les figures ne sont pas nécessairement selon une échelle uniforme, pour rendre les figures plus lisibles.  In all these figures, identical references may designate identical or similar elements. In addition, the figures are not necessarily in a uniform scale, to make the figures more readable.
EXPOSÉ DÉTAILLÉ D'UN MODE DE RÉALISATION PARTICULIER DETAILED PRESENTATION OF A PARTICULAR EMBODIMENT
Les figures 1A et 1B illustrent un bornier 10 d'un dispositif de connexion électrique 100 pour engager et sécuriser une cosse d'un câble électrique, et pour fournir un moyen pour relier électriquement un jeu de barres et un câble électrique. Le bornier 10 se présente essentiellement sous la forme d'un corps allongé s'étendant le long d'un premier axe et comprenant un manchon de verrouillage 3 adapté pour sécuriser une cosse, étant de plus réalisé en matériau conducteur d'électricité. Le bornier 10 est ici en métal et muni de deux trous traversants 5 pour le sécuriser à une structure, par exemple un panneau NIDA (non représenté). Le manchon de verrouillage 3 comprend une première partie (inférieure) 1 et une deuxième partie (supérieure) 2. La première partie 1 fait essentiellement partie du corps principal du bornier 10 et comprend un canal 7 de forme sensiblement semi- cylindrique orienté vers le haut, tandis que la deuxième partie 2, qui est montée sur la première partie 1, comprend un canal 8 de forme sensiblement semi-cylindrique orienté vers le bas. Les deux parties 1, 2 forment un manchon de verrouillage 3 sensiblement formé de deux demi-coques définissant, grâce aux deux canaux de forme semi-cylindrique 7, 8, un espace cylindrique s'étendant sensiblement le long dudit premier axe quand il est fermé. FIGS. 1A and 1B illustrate a terminal block 10 of an electrical connection device 100 for engaging and securing a lug of an electric cable, and for providing a means for electrically connecting a busbar and an electric cable. The terminal block 10 is essentially in the form of an elongated body extending along a first axis and comprising a locking sleeve 3 adapted to secure a lug, being further made of electrically conductive material. The terminal block 10 is here made of metal and provided with two through holes 5 to secure it to a structure, for example a NIDA panel (not shown). The locking sleeve 3 comprises a first portion (lower) 1 and a second portion (upper) 2. The first portion 1 is essentially part of the main body of the terminal block 10 and comprises a channel 7 of substantially semi-cylindrical shape facing upwards while the second part 2, which is mounted on the first part 1, comprises a channel 8 of substantially semi-cylindrical shape oriented downwards. The two parts 1, 2 form a locking sleeve 3 substantially formed of two half-shells defining, thanks to the two semi-cylindrical channels 7, 8, a cylindrical space extending substantially along said first axis when it is closed .
Les deux parties 1, 2 du manchon de verrouillage 3 sont destinées à être séparables, par pivotement, pour permettre l'introduction de la cosse d'un câble. Le manchon de verrouillage 3 est muni d'un moyen de fixation pour verrouiller le manchon et sécuriser la cosse du câble. Le moyen de fixation dans ce cas est une vis du type « imperdable » 16, traversant un trou 4 sur la deuxième partie 2 du manchon de verrouillage 3 en étant sécurisée à cette dernière de sorte à être en ce sens imperdable. La vis 16 est destinée à s'engager dans un trou 6 formé dans la première partie 1 pour verrouiller le manchon 3.  The two parts 1, 2 of the locking sleeve 3 are intended to be separable, by pivoting, to allow the introduction of the lug of a cable. The locking sleeve 3 is provided with a fixing means for locking the sleeve and securing the terminal of the cable. The fixing means in this case is a screw of the "captive" type 16, passing through a hole 4 on the second part 2 of the locking sleeve 3 by being secured thereto so as to be captive in this sense. The screw 16 is intended to engage in a hole 6 formed in the first part 1 to lock the sleeve 3.
Ce bornier 10 est adapté pour recevoir une cosse et ainsi former une connexion électrique. La figure 2 illustre clairement un dispositif de connexion électrique 100 formé par un bornier 10 tel que décrit ci-dessus et une cosse 20 d'un câble électrique 25 attachée audit bornier 10. La cosse 20 du câble 25 est adaptée pour être engagée et sécurisée par le manchon de verrouillage 3 du bornier 10, et pour fournir un moyen pour relier électriquement le câble 25 et le jeu de barres 12 de l'ensemble bornier/jeu de barres du dispositif 100. Plus précisément, la cosse 20 comprend une partie 21 raccordée au câble 25, une tige cylindrique 22 uniforme qui s'étend à l'écart de la partie raccordée 21, et une butée élargie 23, c'est-à-dire ayant un diamètre plus large que celui de la tige cylindrique 22. La cosse 20 est en matériau conducteur d'électricité, par exemple en métal.  This terminal block 10 is adapted to receive a terminal and thus form an electrical connection. FIG. 2 clearly illustrates an electrical connection device 100 formed by a terminal block 10 as described above and a lug 20 of an electric cable 25 attached to said terminal block 10. The lug 20 of the cable 25 is adapted to be engaged and secured by the locking sleeve 3 of the terminal block 10, and to provide a means for electrically connecting the cable 25 and the busbar 12 of the terminal block / busbar assembly of the device 100. More specifically, the lug 20 comprises a portion 21 connected to the cable 25, a cylindrical rod 22 uniform which extends away from the connected portion 21, and an enlarged stop 23, that is to say having a larger diameter than that of the cylindrical rod 22. The lug 20 is electrically conductive material, for example metal.
Les deux parties 1, 2 du manchon de verrouillage 3 se réunissent pour attraper la tige 22 de la cosse 20, de manière à permettre le mouvement relatif en translation et en rotation entre le bornier 10 et la cosse 20. La tige 22 possède donc un diamètre légèrement inférieur à celui du manchon de verrouillage 3, mais une longueur qui est supérieure à celle du manchon de verrouillage 3. En conséquence, le bornier 10 permet que la cosse 20 soit mobile en translation et mobile en rotation par rapport au bornier 10. Plus précisément, le mouvement réalisé dans ce cas entre le bornier 10 et la cosse 20 est une translation de longueur limitée (la longueur de la tige 22 moins la longueur du manchon de verrouillage 3 dans la zone où il entoure la tige 22) et la rotation pour un angle illimité (et donc 360 °). The two parts 1, 2 of the locking sleeve 3 meet to catch the rod 22 of the lug 20, so as to allow the relative movement in translation and rotation between the terminal block 10 and the lug 20. The rod 22 therefore has a diameter slightly less than that of the locking sleeve 3, but a length which is greater than that of the locking sleeve 3. Consequently, the terminal block 10 allows the lug 20 to be mobile in translation and mobile in rotation with respect to the terminal block 10. More precisely , the movement made in this case between the terminal block 10 and the lug 20 is a translation of limited length (the length of the rod 22 minus the length of the locking sleeve 3 in the zone where it surrounds the rod 22) and the rotation for an unlimited angle (and therefore 360 °).
Par ailleurs, il peut être observé que, d'après la figure 2, l'extérieur de la tige 22 et l'intérieur du manchon 3 présentent des formes similaires, c'est-à-dire cylindriques. Bien entendu, ce n'est pas impératif que le manchon de verrouillage 3 et la cosse 20 soient de forme cylindrique. D'autres formes complémentaires peuvent encore être réalisées, par exemple, un manchon définissant une forme interne de section carrée adapté pour une cosse avec une tige de section carrée. Cela permet alors la translation relative, mais pas la rotation relative. En variante, même un manchon avec une section octogonale et une tige cylindrique peut également convenir. La chose importante est que les formes du manchon et de la tige permettent au moins le mouvement relatif en translation, ce qui sera apparent à l'homme du métier. Cependant, la forme cylindrique est préférable pour permettre le mouvement relatif en translation et en rotation à la fois.  Moreover, it can be observed that, according to FIG. 2, the outside of the rod 22 and the inside of the sleeve 3 have similar shapes, that is to say cylindrical. Of course, it is not imperative that the locking sleeve 3 and the lug 20 are of cylindrical shape. Other complementary shapes can still be made, for example, a sleeve defining an internal shape of square section adapted for a pod with a square section rod. This then allows the relative translation, but not the relative rotation. Alternatively, even a sleeve with an octagonal section and a cylindrical rod may also be suitable. The important thing is that the shapes of the sleeve and the rod allow at least the relative movement in translation, which will be apparent to those skilled in the art. However, the cylindrical shape is preferable to allow relative movement in translation and rotation at a time.
Le canal 7 sensiblement semi-cylindrique orienté vers le haut de la première partie 1 (inférieure) est conçu en deux sections 7A et 7B. Une premier section 7A avec un premier diamètre correspondant sensiblement au diamètre de la tige 22 (et le canal 8 de la deuxième partie 2 du manchon 3), et une deuxième section 7B avec un diamètre plus large qui correspond sensiblement au diamètre de la butée élargie 23.  The substantially semi-cylindrical channel 7 oriented upwardly of the first part 1 (bottom) is designed in two sections 7A and 7B. A first section 7A with a first diameter substantially corresponding to the diameter of the rod 22 (and the channel 8 of the second portion 2 of the sleeve 3), and a second section 7B with a larger diameter which substantially corresponds to the diameter of the extended stop 23.
Par ailleurs, le bornier 10 possède également un épaulement 7C, défini par les deux sections 7A, 7B du canal 7 au niveau du changement de diamètre. Cet épaulement 7C sert de butée pour coopérer avec la butée élargie 23 au fond de la tige 22, empêchant ainsi que la cosse 20 se sépare du bornier 10.  Furthermore, the terminal block 10 also has a shoulder 7C, defined by the two sections 7A, 7B of the channel 7 at the diameter change. This shoulder 7C serves as a stop for cooperating with the widened abutment 23 at the bottom of the rod 22, thus preventing the lug 20 from separating from the terminal block 10.
Sur la surface intérieure du manchon 3, deux plaquettes de contact électrique 9 sont « clipsées », c'est-à-dire connectées avec un système de clips, pour servir d'interfaces entre le manchon 3 et la tige 22. Celles-ci assurent un bon engagement électrique entre le bornier 10 et la cosse 20, tout en permettant le mouvement relatif entre les deux. Les plaquettes 9, de type multi-contacts, sont en métal, par exemple en cuivre, cuivre béryllium, nickel ou argent, pour permettre une bonne conduction. En outre, elles ont les caractéristiques d'un ressort à lames pour fournir un bon contact uniforme contre la tige 22, et en même temps, une résistance légère contre son mouvement pour réduire le jeu. Ces plaquettes 9 peuvent également être collées ou serties au manchon 3. On the inner surface of the sleeve 3, two electrical contact plates 9 are "clipped", that is to say connected with a system of clips, to serve as interfaces between the sleeve 3 and the rod 22. These ensure a good electrical engagement between the terminal block 10 and the terminal 20, while allowing the relative movement between both. The pads 9, multi-contact type, are metal, for example copper, beryllium copper, nickel or silver, to allow good conduction. In addition, they have the characteristics of a leaf spring to provide a good uniform contact against the rod 22, and at the same time, a slight resistance against its movement to reduce the game. These pads 9 can also be glued or crimped to sleeve 3.
Le bornier 10, y compris son manchon de verrouillage 3, est en métal pour faciliter la conduction de l'électricité entre le jeu de barres 12 et le câble 25. Cependant, en variante, le bornier 10, incluant le manchon 3, peut être réalisé en un matériau qui n'est pas conducteur d'électricité, mais étant alors fourni avec un moyen de conduction de l'électricité, par exemple un câble reliant les plaquettes 9 au jeu de barres 12. De la même manière, la cosse 20 peut être en matériau non conducteur, mais fournie avec un moyen de conduction de l'électricité de point de contact avec le bornier 10 au câble 25.  The terminal block 10, including its locking sleeve 3, is made of metal to facilitate the conduction of electricity between the busbar 12 and the cable 25. However, in a variant, the terminal block 10, including the sleeve 3, can be made of a material that is not electrically conductive, but then being provided with a means of conduction of electricity, for example a cable connecting the plates 9 to the busbar 12. In the same way, the lug 20 may be of non-conductive material, but provided with a means of conduction of the electricity from point of contact with the terminal block 10 to the cable 25.
Le manchon de verrouillage 3 de cette réalisation est pratique, et conçu avec peu de parties. Comme l'illustrent le mieux les figures 1A et 1B, la deuxième partie 2 (supérieure) comprend un bras 13 s'étendant du côté du bornier 10 et orienté vers le bas. Le bras 13 soutient une broche 14 qui s'engage dans la première partie 1 du manchon 3 du côté de la première partie 1 sensiblement opposé au côté de la première partie 1 en regard de la deuxième partie 2. Dans ce cas, la deuxième partie 2 est située sur la première partie 1 (du côté haut de la première partie 1 qui fait face à la deuxième partie 2), mais sa broche 14 se trouve sous la première partie 1 (du côté de la première partie 1 qui est en bas, qui est donc sensiblement opposé au côté haut de la première partie 1). Plus particulièrement, la broche 14 de la première partie 1 du manchon 3 s'engage dans une rainure 11 fournie sous la première partie 1 du manchon. Les deux parties s'enclenchent et ainsi pivotent l'une par rapport à l'autre, la broche 14 formant un élément pivot.  The locking sleeve 3 of this embodiment is practical, and designed with few parts. As best illustrated in Figures 1A and 1B, the second portion 2 (upper) comprises an arm 13 extending from the side of the terminal block 10 and facing downwards. The arm 13 supports a pin 14 which engages in the first part 1 of the sleeve 3 on the side of the first part 1 substantially opposite the side of the first part 1 opposite the second part 2. In this case, the second part 2 is located on the first part 1 (on the high side of the first part 1 which faces the second part 2), but its pin 14 is under the first part 1 (on the side of the first part 1 which is below , which is therefore substantially opposite to the high side of the first part 1). More particularly, the pin 14 of the first part 1 of the sleeve 3 engages in a groove 11 provided under the first part 1 of the sleeve. The two parts engage and thus pivot relative to each other, the pin 14 forming a pivot member.
L'axe de la broche 14 est sensiblement perpendiculaire à celui (axe premier) du bornier 10. Cet arrangement permet donc à la deuxième partie 2 du manchon 3 de pivoter en relation avec la première partie 1 pour ainsi ouvrir et fermer le manchon 3. Lorsque le bornier 10 est fixé sur un isolateur ou un panneau, la broche 14 sera coincée entre le bornier 10 et l'isolateur (ou panneau) et ne peut pas sortir de cette rainure 11. A cette fin, une partie retournée peut être aussi fournie au fond de la broche 14. Donc, même si la vis 16 pour sécuriser le manchon 3 n'est pas réalisée, les deux parties 1, 2 du manchon 3 resteront ensemble, par le fait que la broche 14 est partie tenante avec la deuxième partie 2 du manchon 3. The axis of the pin 14 is substantially perpendicular to that (first axis) of the terminal block 10. This arrangement thus allows the second portion 2 of the sleeve 3 to pivot in relation to the first part 1 to thereby open and close the sleeve 3. When the terminal block 10 is fixed on an insulator or a panel, the pin 14 will be wedged between the terminal block 10 and the insulator (or panel) and can not leave this groove 11. For this purpose, a returned part may also be provided at the bottom of pin 14. So even though the screw 16 to secure the sleeve 3 is not performed, the two parts 1, 2 of the sleeve 3 will remain together, in that the pin 14 is part of the second part 2 of the sleeve 3.
Un autre aspect de cette invention concerne encore le dommage par corps étrangers (ou encore FOD pour « Foreign Object Damage » en anglais). Outre le fait que le dispositif 100 de connexion électrique, y compris son manchon de verrouillage 3, est conçu avec peu de parties, l'invention bénéficie d'autres caractéristiques anti-FOD, c'est-à-dire des caractéristiques pour éviter, autant que possible, que le dispositif 100 ne devienne endommagé par un corps étranger ou soit la cause d'un endommagement par corps étranger.  Another aspect of this invention further relates to foreign object damage (or FOD for "Foreign Object Damage"). In addition to the fact that the electrical connection device 100, including its locking sleeve 3, is designed with few parts, the invention has other anti-FOD characteristics, that is to say characteristics to avoid, as much as possible, that the device 100 becomes damaged by a foreign body or is the cause of damage by foreign body.
La figure 3 montre ainsi une vue en perspective d'un isolateur 30 ayant des caractéristiques anti-FOD, et une vue éclatée d'un dispositif 100 de connexion électrique permettant de visualiser la manière dont ils sont montés dans l'isolateur 30.  FIG. 3 thus shows a perspective view of an isolator 30 having anti-FOD characteristics, and an exploded view of an electrical connection device 100 making it possible to visualize the manner in which they are mounted in the insulator 30.
La figure 4 illustre quant à elle plusieurs dispositifs 100 de connexion électrique disposés dans un isolateur 30, et aussi avec un contacteur 45 disposé en contact avec les borniers 10.  FIG. 4 illustrates, for its part, several electrical connection devices 100 arranged in an insulator 30, and also with a contactor 45 placed in contact with the terminal blocks 10.
Ces figures illustrent le fait que l'isolateur 30 est muni d'un fond 31 et de parois 32 de chaque côté du bornier 10 et à proximité de chaque côté de ce dernier. Ces parois 32 montent sensiblement verticalement à une hauteur supérieure à celle des jeux de barres 12 et celle des borniers 10. En outre, les parois s'étendent essentiellement le long de la connexion, c'est-à-dire sensiblement de façon parallèle et le long du bornier 10 en entier et de la cosse 20 en entier. Chaque dispositif de connexion électrique 100 est préférablement isolé dans son propre isolateur 30, ou dans son propre compartiment dans l'isolateur 30. L'isolateur 30 est en matériau composite isolant, et ressemble à un boîtier.  These figures illustrate the fact that the insulator 30 is provided with a bottom 31 and walls 32 on each side of the terminal block 10 and close to each side of the latter. These walls 32 rise substantially vertically to a height greater than that of the busbars 12 and that of the terminal blocks 10. In addition, the walls extend essentially along the connection, that is to say substantially parallel and along the entire terminal block 10 and the lug 20 in its entirety. Each electrical connection device 100 is preferably isolated in its own insulator 30, or in its own compartment in the insulator 30. The insulator 30 is made of insulating composite material, and looks like a housing.
Dans le cas d'un objet, par exemple un outil d'un installateur, tombant sur l'isolateur 30 dans lequel se logent les dispositifs 100 de connexion électrique, il est très probable qu'il va se poser sur les parois 32 de l'isolateur 30 ou sur un dispositif 100 de connexion électrique uniquement. En conséquence, le risque d'un objet touchant deux borniers 10, deux jeux de barres 12 ou deux cosses 20 à la fois, provoquant ainsi un court- circuit, est sensiblement réduit. Pour la protection anti-FOD supplémentaire, un capot peut être incorporé pour emboîter les dispositifs de connexion électrique 100. La figure 5 montre un capot 35 d'un isolateur 30 pour renfermer les dispositifs 100 de connexion électrique. Dans ce cas, seuls les câbles et les extrémités des borniers 10 sont exposés au niveau de la connexion électrique. Les extrémités des borniers 10 sont exposées pour leur permettre de se connecter au contacteur 45, ou d'autres équipements électriques ou d'autres borniers. In the case of an object, for example a tool of an installer, falling on the insulator 30 in which are housed the devices 100 of electrical connection, it is very likely that it will land on the walls 32 of the isolator 30 or on a device 100 for electrical connection only. As a result, the risk of an object touching two terminal blocks 10, two busbars 12 or two lugs 20 at a time, thereby causing a short circuit, is substantially reduced. For the additional anti-FOD protection, a cover can be incorporated to fit the electrical connection devices 100. Figure 5 shows a cover 35 of an insulator 30 for enclosing the electrical connection devices 100. In this case, only the cables and the ends of the terminal blocks 10 are exposed at the level of the electrical connection. The ends of the terminal blocks 10 are exposed to enable them to connect to the contactor 45, or other electrical equipment or other terminal blocks.
Le capot 35 est aussi en matériau composite isolant. Le capot 35 est clipsé à l'isolateur 30 et y est sécurisé avec un moyen de fixation, tel qu'une vis imperdable 36 qui s'engage dans un trou 37 respectif situé sur l'isolateur 30. Des brides coopérantes comportant des évidements peuvent être intégrées à l'isolateur 30 et son capot 35 pour entourer et supporter les câbles 25 et potentiellement pour fournir de la résistance contre leur mouvement. L'isolateur 30 isole électriquement les dispositifs 100 de connexion électrique de leur environnement et les uns des autres et en même temps, réduit la probabilité de causer le FOD, ou d'être soumis au FOD.  The cover 35 is also made of insulating composite material. The cover 35 is clipped to the insulator 30 and is secured therein with a fastening means, such as a captive screw 36 which engages in a respective hole 37 located on the insulator 30. Co-operating flanges having recesses can be integrated with the insulator 30 and cover 35 to surround and support the cables 25 and potentially to provide resistance against their movement. The isolator 30 electrically isolates the electrical connection devices 100 from their environment and from each other and at the same time reduces the likelihood of causing FOD, or being subjected to FOD.
Une autre caractéristique anti-FOD concerne les éléments de fixation. Le dispositif de connexion électrique 100 comprend quelques vis imperdables 16, 36 de type connu et qui sont fréquemment utilisées, surtout où la perte de vis est fortement indésirable et peut avoir des conséquences graves. Ce type de vis reste raccordé avec une partie des parties à connecter. Dans les autres cas où les vis standards 15 sont employées, des goupilles élastiques 18 peuvent être utilisées pour éviter la perte de ces vis 15. Une telle goupille 18 est clairement visible en figure 1A installée dans son propre trou traversant le trou 5 où se trouve une vis standard 15. Dans le cas où une telle vis 15 se dévisse, la goupille 18 empêcherait qu'elle sorte complètement et se sépare du dispositif. Plus particulièrement, la tête de vis 15 vient buter contre la goupille 18 pendant sa translation, et la vis 15 sera ainsi contenue dans son trou 5.  Another anti-FOD feature relates to the fasteners. The electrical connection device 100 comprises a few captive screws 16, 36 of known type and which are frequently used, especially where the loss of screws is highly undesirable and can have serious consequences. This type of screw remains connected with part of the parts to be connected. In other cases where the standard screws 15 are used, resilient pins 18 may be used to prevent the loss of these screws 15. Such a pin 18 is clearly visible in Figure 1A installed in its own hole through the hole 5 where it is located. a standard screw 15. In the case where such a screw 15 is unscrewed, the pin 18 prevent it out completely and separates from the device. More particularly, the screw head 15 abuts against the pin 18 during its translation, and the screw 15 will thus be contained in its hole 5.
Encore, afin de réduire le nombre de parties, le dispositif 100 de connexion électrique est conçu de telle que sorte que les éléments de fixation sécurisent plusieurs composants à la fois. Comme illustré dans les figures, chaque bornier 10 a deux trous 5 sur la première partie inférieure 1 pour recevoir des vis 15. Les vis 15 passent par le bornier 10, par le jeu de barres 12, par l'isolateur 30 et se sécurisent sur une structure, par exemple un panneau NIDA (non représenté), pour connecter toutes les parties ensemble à la fois. Still, in order to reduce the number of parts, the electrical connection device 100 is designed such that the fasteners secure several components at a time. As illustrated in the figures, each terminal block 10 has two holes 5 on the first lower part 1 to receive screws 15. The screws 15 pass through the terminal block 10, by the busbar 12, by the insulator 30 and secure on a structure, for example a NIDA panel (not shown), to connect all parts together at a time.
Le mode de réalisation décrit plus haut est à titre d'exemple et ne doit pas être interprété de façon limitative. Il convient de noter que d'autres modes de réalisation ou améliorations à l'invention seront évidents pour l'homme du métier sans sortir du cadre de la portée générale de l'invention.  The embodiment described above is by way of example and should not be interpreted in a limiting manner. It should be noted that other embodiments or improvements to the invention will be apparent to those skilled in the art without departing from the scope of the general scope of the invention.
Par exemple, le bornier et la cosse ne sont pas forcément en métal ni en matériau conducteur. Néanmoins, il est préférable qu'ils soient réalisés en métal, et peu importe quel métal approprié, à titre d'exemples, en cuivre, en nickel ou en argent.  For example, the terminal block and the terminal are not necessarily metal or conductive material. Nevertheless, it is preferable that they be made of metal, and whatever metal suitable, for example, copper, nickel or silver.
En outre, d'autres plaquettes de contact électrique peuvent être incorporées visant à améliorer la conductivité électrique. Par exemple, de telles plaquettes peuvent être montées à l'interface entre les deux parties du manchon, et peuvent être intégrées avec les plaquettes de contact électrique sur l'intérieur du manchon.  In addition, other electrical contact pads may be incorporated to improve electrical conductivity. For example, such pads may be mounted at the interface between the two parts of the sleeve, and may be integrated with the electrical contact pads on the inside of the sleeve.
Le manchon peut être conçu pour sécuriser et fournir la force adéquate à la cosse par serrage complet du manchon (avec les plaquettes fournissant ladite force adéquate) ou par ajustement de la vis pour verrouiller le manchon. Dans certain cas, une fois que la cosse est installée dans la bonne position, une résistance élevée contre son mouvement peut être appliquée en serrant fortement la vis.  The sleeve can be designed to secure and provide adequate force to the lug by fully tightening the sleeve (with the pads providing that adequate force) or by adjusting the screw to lock the sleeve. In some cases, once the lug is installed in the correct position, a high resistance against its movement can be applied by tightly tightening the screw.
Le manchon peut également être conçu pour s'ouvrir dans la direction opposée d'introduction de la cosse. Même un bornier avec deux manchons de verrouillage peut être envisagé, par exemple pour recevoir deux cosses de directions opposées pour relier deux câbles ensemble en ligne droite. Bien que le bornier ait été principalement décrit comme étant dans un ensemble avec un jeu de barres, il peut être également associé en variante avec un équipement électrique ou un câble.  The sleeve may also be designed to open in the opposite direction of insertion of the pod. Even a terminal block with two locking sleeves can be envisaged, for example to receive two lugs of opposite directions to connect two cables together in a straight line. Although the terminal block has been mainly described as being in a set with a busbar, it can also be associated alternatively with electrical equipment or cable.
Bien entendu, d'autres types d'éléments de fixation peuvent être employés au lieu des vis, et également d'autres arrangements anti-FOD.  Of course, other types of fasteners may be employed instead of screws, and also other anti-FOD arrangements.
Par l'expression « mouvement relatif entre le bornier et la cosse », il faut comprendre qu'une partie au moins du bornier est en mouvement relatif par rapport à une partie au moins de la cosse.  By the expression "relative movement between the terminal block and the lug", it should be understood that at least a portion of the terminal block is in relative movement with respect to at least a portion of the lug.

Claims

REVENDICATIONS
1. Dispositif de connexion électrique (100) comprenant un bornier (10) adapté pour se connecter à une cosse (20) d'un câble électrique (25), le bornier (10) comportant un manchon de verrouillage (3) adapté pour sécuriser la cosse (20) de manière à former une connexion électrique permettant le mouvement relatif entre le bornier (10) et la cosse (20) sécurisée, caractérisé en ce que le manchon de verrouillage (3) comporte une première partie (1) et une deuxième partie (2), ainsi qu'un élément pivot (13, 14) configuré de telle sorte que les première et deuxième parties (1, 2) pivotent l'une par rapport à l'autre pour permettre l'introduction de la cosse (20) et sa sécurisation, en ce que l'élément pivot du manchon de verrouillage (3) comporte une broche (14) connectée à la deuxième partie (2) du manchon de verrouillage (3) et engagée dans la première partie (1) du manchon de verrouillage (3) du côté de la première partie (1) sensiblement opposé au côté de la première partie (1) en regard de la deuxième partie (2) du manchon de verrouillage (3), et en ce que ledit mouvement relatif permis est un mouvement de translation. 1. Electrical connection device (100) comprising a terminal block (10) adapted to connect to a lug (20) of an electric cable (25), the terminal block (10) comprising a locking sleeve (3) adapted to secure the lug (20) so as to form an electrical connection allowing the relative movement between the terminal block (10) and the lug (20) secured, characterized in that the locking sleeve (3) comprises a first portion (1) and a second portion (2) and a pivot member (13, 14) configured such that the first and second portions (1, 2) pivot relative to each other to allow insertion of the pod (20) and its securing, in that the pivot element of the locking sleeve (3) comprises a pin (14) connected to the second part (2) of the locking sleeve (3) and engaged in the first part (1). ) of the locking sleeve (3) on the side of the first part (1) substantially opposite the side of the first part (1) facing the second part (2) of the locking sleeve (3), and in that said allowed relative movement is a translation movement.
2. Dispositif de connexion électrique selon la revendication 1, caractérisé en ce que le manchon de verrouillage (3) du bornier (10) est configuré pour assurer un mouvement de translation de la cosse (20) sur une longueur limitée et pour empêcher sa déconnexion du manchon de verrouillage (3) pendant la translation. 2. Electrical connection device according to claim 1, characterized in that the locking sleeve (3) of the terminal block (10) is configured to ensure a translation movement of the lug (20) over a limited length and to prevent its disconnection locking sleeve (3) during translation.
3. Dispositif de connexion électrique selon la revendication 1 ou 2, caractérisé en ce que ledit mouvement relatif permis comporte en outre la rotation. 3. Electrical connection device according to claim 1 or 2, characterized in that said allowed relative movement further comprises rotation.
4. Dispositif de connexion électrique selon l'une des revendications 1 à 3, caractérisé en ce que la broche (14) est située dans une rainure (11) formée dans la première partie (1) du manchon de verrouillage (3), la broche (14) s'étendant le long d'un axe sensiblement perpendiculaire à un axe le long duquel le bornier s'étend sensiblement. 4. Electrical connection device according to one of claims 1 to 3, characterized in that the pin (14) is located in a groove (11) formed in the first part (1) of the locking sleeve (3), the pin (14) extending along an axis substantially perpendicular to an axis along which the terminal board extends substantially.
5. Dispositif de connexion électrique selon l'une quelconque des revendications précédentes, caractérisé en ce que le manchon de verrouillage (3) présente une forme complémentaire de celle de la cosse (20) pour permettre son engagement. 5. Electrical connection device according to any one of the preceding claims, characterized in that the locking sleeve (3) has a shape complementary to that of the lug (20) to allow its engagement.
6. Dispositif de connexion électrique selon la revendication 5, caractérisé en ce que le manchon de verrouillage (3) définit une espace cylindrique entre les première et deuxième parties (1, 2), le manchon de verrouillage (3) étant adapté pour permettre l'engagement d'une cosse (20) avec une tige (22) cylindrique et une terminaison élargie (23), et en ce que la tige (22) présente un diamètre inférieur à celui du manchon de verrouillage (3) et une longueur supérieure à celle du manchon de verrouillage (3). Electrical connecting device according to claim 5, characterized in that the locking sleeve (3) defines a cylindrical space between the first and second parts (1, 2), the locking sleeve (3) being adapted to allow the engaging a lug (20) with a cylindrical rod (22) and an enlarged end (23), and in that the shank (22) has a diameter smaller than that of the locking sleeve (3) and a longer length to that of the locking sleeve (3).
7. Dispositif de connexion électrique selon l'une quelconque des revendications précédentes, caractérisé en ce que le manchon de verrouillage (3) comprend un moyen de fixation (16) pour le verrouillage du manchon (3). 7. Electrical connection device according to any one of the preceding claims, characterized in that the locking sleeve (3) comprises a fixing means (16) for locking the sleeve (3).
8. Dispositif de connexion électrique selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend en outre un jeu de barres (12) connecté au bornier (12) pour ainsi former un ensemble d'un bornier et d'un jeu de barres, et un câble électrique (25) avec une cosse (20), la cosse (20) ayant une tige cylindrique (22) et une terminaison élargie (23), et en ce que la tige (22) présente un diamètre inférieur à celui du manchon de verrouillage (3) et une longueur supérieure à celle du manchon de verrouillage (3). 8. Electrical connection device according to any one of the preceding claims, characterized in that it further comprises a set of bars (12) connected to the terminal block (12) to thereby form an assembly of a terminal block and a busbar, and an electric cable (25) with a lug (20), the lug (20) having a cylindrical rod (22) and an enlarged end (23), and in that the rod (22) has a diameter less than that of the locking sleeve (3) and a length greater than that of the locking sleeve (3).
9. Ensemble d'un dispositif de connexion électrique et d'un isolateur, caractérisé en ce qu'il comprend un dispositif de connexion électrique (100) selon l'une quelconque des revendications précédentes et un isolateur (30), le dispositif de connexion électrique (100) étant disposé dans l'isolateur (30), l'isolateur (30) étant pourvu de parois (32), les parois (32) s'étendant sensiblement parallèlement à l'axe du bornier (10) et montant à une hauteur supérieure à celle du bornier (10). 9. An assembly of an electrical connection device and an insulator, characterized in that it comprises an electrical connection device (100) according to any one of the preceding claims and an insulator (30), the connection device electrical (100) being disposed in the insulator (30), the insulator (30) being provided with walls (32), the walls (32) extending substantially parallel to the axis of the terminal block (10) and rising to a height greater than that of the terminal block (10).
10. Ensemble selon la revendication 9, caractérisé en ce que l'isolateur (30) comprend un capot (35) pour emboîter le dispositif (100). 10. The assembly of claim 9, characterized in that the insulator (30) comprises a cover (35) for fitting the device (100).
EP16748334.6A 2015-07-16 2016-07-08 Freely translatable electrical connection device having protection against damage from foreign bodies Active EP3323170B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1556708A FR3039009B1 (en) 2015-07-16 2015-07-16 FREE ELECTRONIC CONNECTION DEVICE IN TRANSLATION WITH PROTECTION AGAINST FOREIGN BODILD DAMAGE
PCT/FR2016/051746 WO2017009558A1 (en) 2015-07-16 2016-07-08 Freely translatable electrical connection device having protection against damage from foreign bodies

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EP3323170A1 true EP3323170A1 (en) 2018-05-23
EP3323170B1 EP3323170B1 (en) 2020-01-29

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EP (1) EP3323170B1 (en)
CN (1) CN107851909A (en)
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FR3039009A1 (en) 2017-01-20
US20180212346A1 (en) 2018-07-26
US10084248B2 (en) 2018-09-25
FR3039009B1 (en) 2019-06-21
CN107851909A (en) 2018-03-27
EP3323170B1 (en) 2020-01-29
WO2017009558A1 (en) 2017-01-19

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