EP3598582B1 - Electrical connection device - Google Patents

Electrical connection device Download PDF

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Publication number
EP3598582B1
EP3598582B1 EP19186541.9A EP19186541A EP3598582B1 EP 3598582 B1 EP3598582 B1 EP 3598582B1 EP 19186541 A EP19186541 A EP 19186541A EP 3598582 B1 EP3598582 B1 EP 3598582B1
Authority
EP
European Patent Office
Prior art keywords
conductive part
base
module
terminal
cable
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.)
Active
Application number
EP19186541.9A
Other languages
German (de)
French (fr)
Other versions
EP3598582A1 (en
Inventor
Santos Guinda
Gérald Le Youdec
Olivier TISON
Didier Vigouroux
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 EP3598582A1 publication Critical patent/EP3598582A1/en
Application granted granted Critical
Publication of EP3598582B1 publication Critical patent/EP3598582B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • H01R9/2408—Modular 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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
    • H01R4/4821—Single-blade spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/4833—Sliding arrangements, e.g. sliding button
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4846—Busbar details
    • H01R4/485—Single busbar common to multiple springs

Definitions

  • the present invention relates to an electrical connection device.
  • Electrical connection devices in particular known from FR 2 792 778 or EP 1341 261 include terminals for connecting electric cables provided with springs pressing one end of the cable against a conductive metal part of the terminal. For the connection of the cable, a tool should be used to release the spring so that the cable can be inserted against the conductive part.
  • the document EP 1341 261 describes an electrical connection device according to the preamble of claim 1.
  • US 9,444,171 discloses a cable connection device, comprising a terminal divided into two parts.
  • the terminal includes a conductive part which also acts as a retaining spring.
  • connection devices do not make it possible to connect large sections of cables, in particular 2.5 mm 2 , while maintaining a standard size and satisfactory electrical safety parameters.
  • connection elements In addition, the mounting of the connection elements in the bases of the connection devices requires several operations.
  • the invention relates to an electrical connection device for connecting at least one electric cable, comprising a base and at least one connection terminal mounted in the base, this connection terminal comprising a conductive part, a body and at least one spring adapted to maintain at least one electric cable in contact with this conductive part.
  • This device is characterized in that the body of the terminal is divided into two half-boxes assembled to one another, and the base defines a housing receiving the body of each terminal, the conductive part being fixed in this housing.
  • the conductive part comprises a fastening member retaining the body in its housing of the base by elastic cooperation with a part of the body.
  • the distances in the air and the leakage lines are guaranteed while keeping a reduced size, and the fixing of the terminals in the base is simple, fast and requires only one operation.
  • the figure 1 represents an electrical connection device 2 for connecting at least one electrical cable C.
  • the device 2 comprises a base 4 and at least one connection terminal 6 mounted in the base 4.
  • the device 2 consists of two rows of five terminals 6.
  • the device 2 also comprises a cover 8 mounted on the base 4, covering part of the latter, and provided with openings 80 allowing the connection of electric cables.
  • the device 2 is intended to be fixed for example in a wall and connected to an electricity distribution network on a rear face 2a, and connected by cables to various electrical devices on a front face 2b, on the side of which is located the cover 8.
  • the cover 8 can be used for mounting and connecting electrical additives.
  • connection terminal 6 comprises a conductive part 10 and at least one spring 12 adapted to maintain at least one electric cable C in contact with this conductive part 10.
  • each terminal 6 comprises two poles 60 and 61, each allowing the connection of an electric cable C.
  • Each terminal 6 comprises a body 14 formed by a rigid piece of insulating material holding the various components of the terminal 6.
  • Each terminal 6 comprises a conductive piece 10 ensuring electrical contact with the two electric cables C and retaining the module 16 in the terminal. base 4.
  • the conductive part 10 is fixed against the base 4.
  • the base 4 defines, for each terminal 6, a housing 40 receiving the body 14.
  • the conductive part 10 is fixed in this housing 40, for example by means of a screw. 18.
  • the base 4 comprises a fixed contact 42 formed by a metal part located under the conductive part 10 and which allows the flow of electric current between the upstream and downstream of the device, that is to say between a network and devices connected to the device 2.
  • the conductive part 10 is formed by a bent metal part comprising a central part 100, pressed against the electrical contact 42 in a bottom 40a of the housing 40.
  • the central part 100 has a hole 100a in which the screw 18 is inserted.
  • the conductive part 10 also comprises a blade 102 bent relative to the central part 100, and which is intended to be in contact with the cable C, as can be seen in figure 5 .
  • the conductive part 10 comprises a fastening member 104 retaining the body 14 in its housing 40 of the base 4 by elastic cooperation with a part of the body 14.
  • the body 14 comprises a deformable tongue 140 resiliently cooperating with the fastening member 104.
  • the free end of this tongue 140 has a protuberance 142 which is received in an orifice 104a of the fastening member 104 to retain the body 14 in the base 4.
  • a main axis X2 of the connection device 2 is defined.
  • This axis X2 is vertical in the drawings, however in the reality of the installation of the device 2, this axis may correspond to a horizontal axis.
  • the deformable tongue 140 When inserting the connection terminal 6 into the base 2, parallel to the axis X2 according to the arrow F1 at the figure 4 , the deformable tongue 140 is deformed until the protuberance 142 is received in the orifice 104a.
  • the protuberance 142 has a bevelled surface 142a, cooperating by sliding with a bevelled surface 104b of the gripping member 104.
  • this cooperation of surfaces deforms the tongue 140 so that the body 14 can advance in the housing 40.
  • the tongue 140 When the protuberance 142 is found facing the orifice 104a, the tongue 140 resumes its shape, the protuberance 142 fits into the orifice 104a, and the body 14 is retained by the hooking member 104 at the level of a stop surface 104c orthogonal to the main axis X2.
  • the spring 12 is formed by a metal blade bent and curved so as to form two parts 12a and 12b, and a rounded central part 12c located between the parts 12a and 12b.
  • the central part 12c is mounted around a rounded part 144 of the body 14.
  • the rounded part 12c defines an axis of rotation Y12 orthogonal to the main axis X2.
  • the leaf spring 12 In a free state, that is to say without any mechanical stress other than the prestressing necessary for its assembly in the body 14, the leaf spring 12 is deployed as shown in figure 4 .
  • the part 12a is pressed against the protuberance 142, and the part 12b is moved apart in contact with the blade 102, and obstructs a bore 146 of the body 14 intended to receive the cable C.
  • the protuberance 142 of the deformable tongue 140 is kept housed in the orifice 104a through part 12a of the leaf spring 12.
  • the part 12b When inserting cable C to the figure 5 , the part 12b is moved from its deployed position by rotation according to the arrow F2 around the axis Y12, by a stripped end Cd of the cable C.
  • the cable C can then be inserted into the connection terminal 6 and, once that the end Cd of the cable C has passed the end of the part 12b of the leaf spring 12, be pressed against the conductive part 10.
  • the leaf spring 12 exerts an elastic force E which tends to bring it back to its deployed position of the figure 4 , and this force E presses the cable C against the blade 102 of the conductive part 10.
  • This force E ensures the mechanical retention of the cable C and satisfactory electrical contact.
  • the mechanical stress in the spring 12 exerted by the cable C tends to exert an elastic force in the part 12a, which additionally locks the hooking of the protuberance 142 in the hooking member 104 and the mechanical retention of terminal 6 in the base 4.
  • This system for connecting the cable C in terminal 6 by simply inserting the cable C into the bore 146, called “push-in”, does not require any tools and allows a significant saving of time during electrical installations.
  • the rotational mobility of the part 12b allows a certain latitude in the choice of the sections of usable electric cables. Sections of cables larger than in known devices can be used, and the thicker the cable C, the more the spring 12 is deformed and exerts a significant plating force E on the cable C and strengthens the mechanical retention of the tongues 140 by the attachment members 104.
  • the terminal 6 comprises a maneuverable element for deformation of the leaf spring 12 which moves the leaf spring 12 away from its deployed position towards a retracted position, shown in the figure. figure 6 , in which the cable C can be released from the conductive part 10 and removed from the connection terminal 6.
  • the maneuverable element is a pusher 20 exerting a force against the leaf spring 10 so as to separate part 12b from the conductive part 10 and to release the cable C.
  • the pusher 20 is mounted in the body 14 with the possibility of sliding according to l 'X2 axis between an extended position ( figures 4 and 5 ) and a pressed position ( figure 6 ).
  • a tool for example a screwdriver
  • an installer pushes the pusher 20 according to the arrow F3 towards its depressed position, against the elastic force of the part 12b of the leaf spring 12. This has the effect to move away the part 12b of the blade 102 according to the arrow F2 in a more pronounced way than at the figure 5 , and the installer can then remove cable C from terminal 6.
  • Each terminal 6 comprises a module 16 formed by the body 14 of the terminal 6 divided into two half-boxes 16a and 16b assembled together.
  • Each module 16 also includes two leaf springs 12, each being assembled with one of the two half-boxes 16a and 16b.
  • the module 16 also comprises two maneuverable elements 20, each being assembled with one of the two half-boxes 16a and 16b.
  • the structure of the terminals 6 with modules 16 saves time when assembling the devices.
  • the modules 16 can be assembled separately and distributed on the assembly line of the devices, then mounted in the bases 4, in which the conductive parts 10 have been fixed beforehand, simply and quickly thanks to the assembly mode by elastic cooperation between the bodies 14 and the conductive parts 10.
  • the half-boxes 16a and 16b of each module 16 are assembled by means of fixing elements.
  • these fasteners can comprise a finger 148 provided on the half-case 16a which fits into a concealed recessed relief of the half-case 16b, and a similar system comprising a hole 149 in the half-case 16a. and a protruding element 150 provided in the half-casing 16b ( figure 5 ).
  • the two half-boxes 16a and 16b are retained in the base 4 by the same conductive part 10.
  • Each half-boxes 16a and 16b comprises for this purpose a deformable tongue 140 provided with a protuberance 142 at its end.
  • the orifices 104a have a width corresponding to the width of two protuberances 142 contiguous with two assembled half-housings 16a and 16b.
  • the half-boxes 16a and 16b comprise a respective side wall 160a and 160b delimiting an internal space V of the terminal 6.
  • the half-boxes 16a and 16b of the same module 16 are assembled so as to form a single delimited internal space V by the side walls 160a and 160b of the half-boxes 16a and 16b.
  • the modules 16 are juxtaposed to each other by cooperation of an outer face S160a of a side wall 160a of a half-case 16a of a first module 16 and of an outer face S160b of a side wall 160b d 'a half-box 16b of a second module 16.
  • the terminals 6 are juxtaposed by surface contact between the external faces S160a and S160b of the half-boxes 16a and 16b belonging to two separate juxtaposed modules 16.
  • These side walls 160a and 160b separating two poles 60 and 61 of two different terminals 6 make it possible to guarantee the distances in the air and the minimum leakage line lengths required for this type of electrical connection device.
  • these walls 160a and 160b have a thickness e160, visible at the figure 7 , taken along the Y12 axis, which increase the amount of insulating material of the bodies 14 and the distance between the parts capable of conducting the current, that is to say the springs 12 and the parts conductors 10, of two different terminals.
  • the length of the creepage lines between two terminals 6 is at least equal to twice the thickness e160.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Multi-Conductor Connections (AREA)

Description

La présente invention concerne un dispositif de connexion électrique.The present invention relates to an electrical connection device.

Les dispositifs de connexion électrique, notamment connus de FR 2 792 778 ou EP 1341 261 comprennent des bornes de raccordement de câbles électriques munies de ressorts pressant une extrémité de câble contre une pièce métallique conductrice de la borne. Pour le raccordement du câble, un outil doit être utilisé pour libérer le ressort de manière que le câble puisse être inséré contre la pièce conductrice. Le document EP 1341 261 décrit un dispositif de connexion électrique selon le préambule de la revendication 1.Electrical connection devices, in particular known from FR 2 792 778 or EP 1341 261 include terminals for connecting electric cables provided with springs pressing one end of the cable against a conductive metal part of the terminal. For the connection of the cable, a tool should be used to release the spring so that the cable can be inserted against the conductive part. The document EP 1341 261 describes an electrical connection device according to the preamble of claim 1.

US 9,444,171 divulgue un dispositif de connexion de câbles, comprenant une borne divisée en deux parties. La borne comprend une pièce conductrice qui joue également le rôle de ressort de maintien. US 9,444,171 discloses a cable connection device, comprising a terminal divided into two parts. The terminal includes a conductive part which also acts as a retaining spring.

En outre, les dispositifs de connexion connus ne permettent pas de raccorder des sections importantes de câbles, notamment de 2,5 mm2, en conservant un encombrement standard et des paramètres de sécurité électriques satisfaisants.In addition, the known connection devices do not make it possible to connect large sections of cables, in particular 2.5 mm 2 , while maintaining a standard size and satisfactory electrical safety parameters.

En outre, le montage des éléments de connexion dans les embases des dispositifs de connexion nécessite plusieurs opérations.In addition, the mounting of the connection elements in the bases of the connection devices requires several operations.

C'est à ces inconvénients qu'entend remédier l'invention en proposant un dispositif de connexion électrique garantissant la sécurité électrique et dont l'assemblage est facilité.It is these drawbacks that the invention intends to remedy by proposing an electrical connection device guaranteeing electrical safety and the assembly of which is facilitated.

A cet effet, l'invention concerne un dispositif de connexion électrique pour le raccordement d'au moins un câble électrique, comprenant une embase et au moins une borne de connexion montée dans l'embase, cette borne de connexion comprenant une pièce conductrice, un corps et au moins un ressort adapté pour maintenir au moins un câble électrique en contact avec cette pièce conductrice. Ce dispositif est caractérisé en ce que le corps de la borne est divisé en deux demi-boitiers assemblés l'un à l'autre, et l'embase définit un logement accueillant le corps de chaque borne, la pièce conductrice étant fixée dans ce logement, et la pièce conductrice comporte un organe d'accrochage retenant le corps dans son logement de l'embase par coopération élastique avec une partie du corps.To this end, the invention relates to an electrical connection device for connecting at least one electric cable, comprising a base and at least one connection terminal mounted in the base, this connection terminal comprising a conductive part, a body and at least one spring adapted to maintain at least one electric cable in contact with this conductive part. This device is characterized in that the body of the terminal is divided into two half-boxes assembled to one another, and the base defines a housing receiving the body of each terminal, the conductive part being fixed in this housing. , and the conductive part comprises a fastening member retaining the body in its housing of the base by elastic cooperation with a part of the body.

Grâce à l'invention, les distances dans l'air et les lignes de fuites sont garanties tout en conservant un encombrement réduit, et la fixation des bornes dans l'embase est simple, rapide et ne nécessite qu'une opération.Thanks to the invention, the distances in the air and the leakage lines are guaranteed while keeping a reduced size, and the fixing of the terminals in the base is simple, fast and requires only one operation.

Selon des aspects avantageux mais non obligatoires de l'invention, un tel dispositif de connexion peut incorporer une ou plusieurs des caractéristiques suivantes, prises selon toute combinaison techniquement admissible :

  • Chaque borne est destinée à la connexion de deux câbles électriques et comprend un module formé par les deux demi-boitiers, et par deux lames ressort, chacun des deux demi-boitiers étant assemblé avec une lame ressort, et chaque borne comprend également une pièce conductrice assurant le contact électrique avec les deux câbles électriques et retenant le module dans l'embase.
  • Les demi-boitiers de chaque module comportent une paroi latérale délimitant un espace interne.
  • Les demi-boitiers d'un même module sont assemblés de manière à former un seul espace interne délimité par les parois latérales des demi-boitiers.
  • Les modules sont juxtaposés les uns aux autres par coopération des faces externes respectives d'une paroi latérale d'un demi-boitier d'un premier module et d'une paroi latérale d'un demi-boitier d'un second module.
  • La pièce conductrice est fixée contre un contact fixe de l'embase par une vis.
  • La partie du corps coopérant avec l'organe d'accrochage est formée par une languette déformable dont l'extrémité libre présente une protubérance qui est reçue dans un orifice de l'organe d'accrochage pour retenir le corps dans l'embase.
  • La languette déformable est déformée lors de l'insertion de la borne de connexion dans l'embase jusqu'à ce que la protubérance soit reçue dans l'orifice.
  • La protubérance de la languette déformable est maintenue logée dans l'orifice de la pièce conductrice par la lame ressort.
  • La borne comporte un élément manœuvrable de déformation de la lame ressort qui écarte la lame ressort d'une position déployée, dans laquelle le câble est maintenu contre la pièce conductrice, vers une position rétractée, dans laquelle le câble peut être dégagé de la pièce conductrice et retiré de la borne de connexion.
  • L'élément manœuvrable est un poussoir exerçant un effort contre la lame ressort de manière à écarter la lame ressort de la pièce conductrice.
According to advantageous but not mandatory aspects of the invention, such a connection device can incorporate one or more of the following characteristics, taken in any technically acceptable combination:
  • Each terminal is intended for the connection of two electric cables and comprises a module formed by the two half-boxes, and by two leaf springs, each of the two half-cases being assembled with a leaf spring, and each terminal also comprises a conductive part ensuring electrical contact with the two electrical cables and retaining the module in the base.
  • The half-boxes of each module have a side wall defining an internal space.
  • The half-boxes of the same module are assembled so as to form a single internal space delimited by the side walls of the half-boxes.
  • The modules are juxtaposed to each other by cooperation of the respective outer faces of a side wall of a half-box of a first module and a side wall of a half-box of a second module.
  • The conductive part is fixed against a fixed contact of the base by a screw.
  • The part of the body cooperating with the fastening member is formed by a deformable tongue, the free end of which has a protuberance which is received in an orifice of the fastening member to retain the body in the base.
  • The deformable tab is deformed during the insertion of the connection terminal into the base until the protuberance is received in the orifice.
  • The protuberance of the deformable tongue is kept housed in the orifice of the conductive part by the leaf spring.
  • The terminal comprises a maneuverable element for deformation of the leaf spring which moves the leaf spring from a deployed position, in which the cable is held against the conductive part, towards a retracted position, in which the cable can be released from the conductive part and removed from the connection terminal.
  • The operable element is a pusher exerting a force against the leaf spring so as to move the leaf spring away from the conductive part.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaîtront plus clairement à la lumière de la description qui va suivre d'un dispositif de connexion conforme à son principe, faite à titre d'exemple non limitatif en référence aux dessins annexés, dans lesquels :

  • la figure 1 est une vue en perspective d'un dispositif de connexion conforme à l'invention, dont un capot est éclaté ;
  • la figure 2 est une vue en perspective du dispositif de connexion de la figure 1 dont un module est éclaté ;
  • la figure 3 est une vue en perspective d'une embase du dispositif de connexion de la figure 1, dont une pièce conductrice et une vis de fixation sont éclatées ;
  • la figure 4 est une vue en coupe d'une partie du dispositif de connexion de la figure 1, dans une configuration à vide ;
  • la figure 5 est une vue similaire à la figure 4, dans une configuration de raccordement d'un câble électrique ;
  • la figure 6 est une vue similaire à la figure 4, dans une configuration de déconnexion ;
  • la figure 7 est une vue en perspective éclatée du module de la figure 2.
The invention will be better understood and other advantages thereof will appear more clearly in the light of the following description of a connection device in accordance with its principle, given by way of non-limiting example with reference to the drawings. annexed, in which:
  • the figure 1 is a perspective view of a connection device according to the invention, one cover of which is exploded;
  • the figure 2 is a perspective view of the connection device of the figure 1 one module of which is exploded;
  • the figure 3 is a perspective view of a base of the connection device of the figure 1 , of which a conductive part and a fixing screw are exploded;
  • the figure 4 is a sectional view of part of the connection device of the figure 1 , in an empty configuration;
  • the figure 5 is a view similar to the figure 4 , in a connection configuration of an electric cable;
  • the figure 6 is a view similar to the figure 4 , in a disconnection configuration;
  • the figure 7 is an exploded perspective view of the module of the figure 2 .

La figure 1 représente un dispositif de connexion électrique 2 pour le raccordement d'au moins un câble électrique C. Le dispositif 2 comprend une embase 4 et au moins une borne de connexion 6 montée dans l'embase 4. Dans l'exemple représenté, le dispositif 2 comprend deux rangées de cinq bornes 6.The figure 1 represents an electrical connection device 2 for connecting at least one electrical cable C. The device 2 comprises a base 4 and at least one connection terminal 6 mounted in the base 4. In the example shown, the device 2 consists of two rows of five terminals 6.

Le dispositif 2 comprend également un capot 8 monté sur l'embase 4 en recouvrant une partie de celle-ci, et muni d'ouvertures 80 permettant le raccordement de câbles électriques.The device 2 also comprises a cover 8 mounted on the base 4, covering part of the latter, and provided with openings 80 allowing the connection of electric cables.

Le dispositif 2 est destiné à être fixé par exemple dans un mur et raccordé à un réseau de distribution d'électricité sur une face arrière 2a, et raccordé par des câbles à divers appareils électriques sur une face avant 2b, du côté de laquelle se situe le capot 8.The device 2 is intended to be fixed for example in a wall and connected to an electricity distribution network on a rear face 2a, and connected by cables to various electrical devices on a front face 2b, on the side of which is located the cover 8.

Le capot 8 peut servir au montage et à la connexion d'additifs électriques.The cover 8 can be used for mounting and connecting electrical additives.

Chaque borne de connexion 6 comprend une pièce conductrice 10 et au moins un ressort 12 adapté pour maintenir au moins un câble électrique C en contact avec cette pièce conductrice 10.Each connection terminal 6 comprises a conductive part 10 and at least one spring 12 adapted to maintain at least one electric cable C in contact with this conductive part 10.

Dans l'exemple, chaque borne 6 comprend deux pôles 60 et 61, permettant chacun le raccordement d'un câble électrique C.In the example, each terminal 6 comprises two poles 60 and 61, each allowing the connection of an electric cable C.

Chaque borne 6 comprend un corps 14 formé par une pièce rigide en matériau isolant maintenant les différents composants de la borne 6. Chaque borne 6 comprend une pièce conductrice 10 assurant le contact électrique avec les deux câbles électriques C et retenant le module 16 dans l'embase 4.Each terminal 6 comprises a body 14 formed by a rigid piece of insulating material holding the various components of the terminal 6. Each terminal 6 comprises a conductive piece 10 ensuring electrical contact with the two electric cables C and retaining the module 16 in the terminal. base 4.

La pièce conductrice 10 est fixée contre l'embase 4. L'embase 4 définit, pour chaque borne 6, un logement 40 accueillant le corps 14. La pièce conductrice 10 est fixée dans ce logement 40, par exemple au moyen d'une vis 18. L'embase 4 comporte un contact fixe 42 formé par une pièce métallique située sous la pièce conductrice 10 et qui permet la circulation du courant électrique entre l'amont et l'aval du dispositif, c'est-à-dire entre un réseau et des appareils branchés sur le dispositif 2. La pièce conductrice 10 est formée par une pièce métallique pliée comprenant une partie centrale 100, plaquée contre le contact électrique 42 dans un fond 40a du logement 40. La partie centrale 100 comporte un trou 100a dans laquelle la vis 18 est insérée.The conductive part 10 is fixed against the base 4. The base 4 defines, for each terminal 6, a housing 40 receiving the body 14. The conductive part 10 is fixed in this housing 40, for example by means of a screw. 18. The base 4 comprises a fixed contact 42 formed by a metal part located under the conductive part 10 and which allows the flow of electric current between the upstream and downstream of the device, that is to say between a network and devices connected to the device 2. The conductive part 10 is formed by a bent metal part comprising a central part 100, pressed against the electrical contact 42 in a bottom 40a of the housing 40. The central part 100 has a hole 100a in which the screw 18 is inserted.

La pièce conductrice 10 comprend également une lame 102 pliée par rapport à la partie centrale 100, et qui est destinée à être en contact avec le câble C, comme cela est visible à la figure 5.The conductive part 10 also comprises a blade 102 bent relative to the central part 100, and which is intended to be in contact with the cable C, as can be seen in figure 5 .

A l'autre extrémité de la partie centrale 100, la pièce conductrice 10 comporte un organe d'accrochage 104 retenant le corps 14 dans son logement 40 de l'embase 4 par coopération élastique avec une partie du corps 14.At the other end of the central part 100, the conductive part 10 comprises a fastening member 104 retaining the body 14 in its housing 40 of the base 4 by elastic cooperation with a part of the body 14.

Le corps 14 comporte une languette déformable 140 coopérant de façon élastique avec l'organe d'accrochage 104. L'extrémité libre de cette languette 140 présente une protubérance 142 qui est reçue dans un orifice 104a de l'organe d'accrochage 104 pour retenir le corps 14 dans l'embase 4.The body 14 comprises a deformable tongue 140 resiliently cooperating with the fastening member 104. The free end of this tongue 140 has a protuberance 142 which is received in an orifice 104a of the fastening member 104 to retain the body 14 in the base 4.

On définit un axe principal X2 du dispositif de connexion 2. Cet axe X2 est vertical sur les dessins, toutefois dans la réalité de l'installation du dispositif 2, cet axe peut correspondre à un axe horizontal.A main axis X2 of the connection device 2 is defined. This axis X2 is vertical in the drawings, however in the reality of the installation of the device 2, this axis may correspond to a horizontal axis.

Lors de l'insertion de la borne de connexion 6 dans l'embase 2, parallèlement à l'axe X2 selon la flèche F1 à la figure 4, la languette déformable 140 est déformée jusqu'à ce que la protubérance 142 soit reçue dans l'orifice 104a. La protubérance 142 présente une surface biseautée 142a, coopérant par glissement avec une surface biseautée 104b de l'organe d'accroche 104. Lors de l'insertion du corps 14 dans l'embase 4, cette coopération de surfaces déforme la languette 140 de manière que le corps 14 puisse avancer dans le logement 40. Lorsque la protubérance 142 se retrouve face à l'orifice 104a, la languette 140 reprend sa forme, la protubérance 142 s'insère dans l'orifice 104a, et le corps 14 est retenu par l'organe d'accroche 104 au niveau d'une surface de butée 104c orthogonale à l'axe principal X2.When inserting the connection terminal 6 into the base 2, parallel to the axis X2 according to the arrow F1 at the figure 4 , the deformable tongue 140 is deformed until the protuberance 142 is received in the orifice 104a. The protuberance 142 has a bevelled surface 142a, cooperating by sliding with a bevelled surface 104b of the gripping member 104. When inserting the body 14 into the base 4, this cooperation of surfaces deforms the tongue 140 so that the body 14 can advance in the housing 40. When the protuberance 142 is found facing the orifice 104a, the tongue 140 resumes its shape, the protuberance 142 fits into the orifice 104a, and the body 14 is retained by the hooking member 104 at the level of a stop surface 104c orthogonal to the main axis X2.

Le ressort 12 est formé par une lame métallique pliée et recourbée de manière à former deux parties 12a et 12b, et une partie centrale arrondie 12c se trouvant entre les parties 12a et 12b. La partie centrale 12c est montée autour d'une partie arrondie 144 du corps 14. La partie arrondie 12c définit un axe de rotation Y12 orthogonal à l'axe principal X2.The spring 12 is formed by a metal blade bent and curved so as to form two parts 12a and 12b, and a rounded central part 12c located between the parts 12a and 12b. The central part 12c is mounted around a rounded part 144 of the body 14. The rounded part 12c defines an axis of rotation Y12 orthogonal to the main axis X2.

Dans un état libre, c'est-à-dire sans autre sollicitation mécanique que la précontrainte nécessaire à son montage dans le corps 14, la lame ressort 12 est déployée comme cela est représenté à la figure 4. La partie 12a est appuyée contre la protubérance 142, et la partie 12b est écartée en contact avec la lame 102, et obstrue un alésage 146 du corps 14 destiné à accueillir le câble C. La protubérance 142 de la languette déformable 140 est maintenue logée dans l'orifice 104a par la partie 12a de la lame ressort 12.In a free state, that is to say without any mechanical stress other than the prestressing necessary for its assembly in the body 14, the leaf spring 12 is deployed as shown in figure 4 . The part 12a is pressed against the protuberance 142, and the part 12b is moved apart in contact with the blade 102, and obstructs a bore 146 of the body 14 intended to receive the cable C. The protuberance 142 of the deformable tongue 140 is kept housed in the orifice 104a through part 12a of the leaf spring 12.

Lors de l'insertion du câble C à la figure 5, la partie 12b est déplacée de sa position déployée par rotation selon la flèche F2 autour de l'axe Y12, par une extrémité dénudée Cd du câble C. Le câble C peut alors être inséré dans la borne de connexion 6 et, une fois que l'extrémité Cd du câble C a dépassé l'extrémité de la partie 12b de la lame ressort 12, être plaqué contre la pièce conductrice 10. La lame ressort 12 exerce un effort E élastique qui tend à la ramener vers sa position déployée de la figure 4, et cet effort E plaque le câble C contre la lame 102 de la pièce conductrice 10. Cet effort E assure la retenue mécanique du câble C et un contact électrique satisfaisant. Dans le même temps, la contrainte mécanique dans le ressort 12 exercée par le câble C a tendance à exercer un effort élastique dans la partie 12a, qui verrouille de façon supplémentaire l'accroche de la protubérance 142 dans l'organe d'accroche 104 et la retenue mécanique de la borne 6 dans l'embase 4.When inserting cable C to the figure 5 , the part 12b is moved from its deployed position by rotation according to the arrow F2 around the axis Y12, by a stripped end Cd of the cable C. The cable C can then be inserted into the connection terminal 6 and, once that the end Cd of the cable C has passed the end of the part 12b of the leaf spring 12, be pressed against the conductive part 10. The leaf spring 12 exerts an elastic force E which tends to bring it back to its deployed position of the figure 4 , and this force E presses the cable C against the blade 102 of the conductive part 10. This force E ensures the mechanical retention of the cable C and satisfactory electrical contact. At the same time, the mechanical stress in the spring 12 exerted by the cable C tends to exert an elastic force in the part 12a, which additionally locks the hooking of the protuberance 142 in the hooking member 104 and the mechanical retention of terminal 6 in the base 4.

Ce système de raccordement du câble C dans la borne 6 par simple insertion du câble C dans l'alésage 146, dit « push-in » ne nécessite pas d'outil et permet un gain de temps important lors des installations électriques. En outre, la mobilité en rotation de la partie 12b permet une certaine latitude dans le choix des sections de câbles électriques utilisable. Des sections de câbles plus importantes que dans les dispositifs connus peuvent être utilisées, et plus le câble C est épais, plus le ressort 12 est déformé et exerce un effort de plaquage E important sur le câble C et renforce la retenue mécanique des languettes 140 par les organes d'accroche 104.This system for connecting the cable C in terminal 6 by simply inserting the cable C into the bore 146, called “push-in”, does not require any tools and allows a significant saving of time during electrical installations. In addition, the rotational mobility of the part 12b allows a certain latitude in the choice of the sections of usable electric cables. Sections of cables larger than in known devices can be used, and the thicker the cable C, the more the spring 12 is deformed and exerts a significant plating force E on the cable C and strengthens the mechanical retention of the tongues 140 by the attachment members 104.

De façon optionnelle, la borne 6 comporte un élément manœuvrable de déformation de la lame ressort 12 qui écarte la lame ressort 12 de sa position déployée vers une position rétractée, représentée sur la figure 6, dans laquelle le câble C peut être dégagé de la pièce conductrice 10 et retiré de la borne de connexion 6.Optionally, the terminal 6 comprises a maneuverable element for deformation of the leaf spring 12 which moves the leaf spring 12 away from its deployed position towards a retracted position, shown in the figure. figure 6 , in which the cable C can be released from the conductive part 10 and removed from the connection terminal 6.

L'élément manœuvrable est un poussoir 20 exerçant un effort contre la lame ressort 10 de manière à écarter la partie 12b de la pièce conductrice 10 et à libérer le câble C. Le poussoir 20 est monté dans le corps 14 avec possibilité de coulissement selon l'axe X2 entre une position sortie (figures 4 et 5) et une position enfoncée (figure 6). Par une action avec un outil, par exemple un tournevis, un installateur pousse le poussoir 20 selon la flèche F3 vers sa position enfoncée, à l'encontre de l'effort élastique de la partie 12b de la lame ressort 12. Cela a pour effet d'écarter la partie 12b de la lame 102 selon la flèche F2 de façon plus prononcée qu'à la figure 5, et l'installateur peut alors retirer le câble C de la borne 6.The maneuverable element is a pusher 20 exerting a force against the leaf spring 10 so as to separate part 12b from the conductive part 10 and to release the cable C. The pusher 20 is mounted in the body 14 with the possibility of sliding according to l 'X2 axis between an extended position ( figures 4 and 5 ) and a pressed position ( figure 6 ). By an action with a tool, for example a screwdriver, an installer pushes the pusher 20 according to the arrow F3 towards its depressed position, against the elastic force of the part 12b of the leaf spring 12. This has the effect to move away the part 12b of the blade 102 according to the arrow F2 in a more pronounced way than at the figure 5 , and the installer can then remove cable C from terminal 6.

Chaque borne 6 comprend un module 16 formé par le corps 14 de la borne 6 divisé en deux demi-boitiers 16a et 16b assemblés l'un à l'autre. Chaque module 16 comprend également deux lames ressort 12, chacune étant assemblée avec l'un des deux demi-boitiers 16a et 16b. Dans le cas optionnel où le dispositif 2 comprend des éléments manœuvrables de retrait des câbles, le module 16 comprend également deux éléments manœuvrables 20, chacun étant assemblé avec l'un des deux demi-boitiers 16a et 16b. La structure des bornes 6 à modules 16 permet un gain de temps lors de l'assemblage des dispositifs. Les modules 16 peuvent être assemblés à part et distribués sur la chaine de montage des dispositifs, puis montés dans les embases 4, dans lesquelles les pièces conductrices 10 ont préalablement été fixées, de façon simple et rapide grâce au mode d'assemblage par coopération élastique entre les corps 14 et les pièces conductrices 10.Each terminal 6 comprises a module 16 formed by the body 14 of the terminal 6 divided into two half-boxes 16a and 16b assembled together. Each module 16 also includes two leaf springs 12, each being assembled with one of the two half-boxes 16a and 16b. In the optional case where the device 2 comprises maneuverable elements for removing the cables, the module 16 also comprises two maneuverable elements 20, each being assembled with one of the two half-boxes 16a and 16b. The structure of the terminals 6 with modules 16 saves time when assembling the devices. The modules 16 can be assembled separately and distributed on the assembly line of the devices, then mounted in the bases 4, in which the conductive parts 10 have been fixed beforehand, simply and quickly thanks to the assembly mode by elastic cooperation between the bodies 14 and the conductive parts 10.

Les demi-boitiers 16a et 16b de chaque module 16 sont assemblés au moyen d'éléments de fixation. Par exemple, ces éléments de fixation peuvent comprendre un doigt 148 prévu sur le demi-boitier 16a qui s'insère dans un relief en creux non visible du demi-boitier 16b, et un système similaire comportant un trou 149 dans le demi-boitier 16a et un élément protubérant 150 prévu dans le demi-boitier 16b (figure 5).The half-boxes 16a and 16b of each module 16 are assembled by means of fixing elements. For example, these fasteners can comprise a finger 148 provided on the half-case 16a which fits into a concealed recessed relief of the half-case 16b, and a similar system comprising a hole 149 in the half-case 16a. and a protruding element 150 provided in the half-casing 16b ( figure 5 ).

Les deux demi-boitiers 16a et 16b sont retenus dans l'embase 4 par une même pièce conductrice 10. Chaque demi-boitiers 16a et 16b comporte à cet effet une languette déformable 140 munie d'une protubérance 142 à son extrémité. Les orifices 104a ont une largeur correspondant à la largeur de deux protubérances 142 accolées de deux demi-boitiers 16a et 16b assemblés.The two half-boxes 16a and 16b are retained in the base 4 by the same conductive part 10. Each half-boxes 16a and 16b comprises for this purpose a deformable tongue 140 provided with a protuberance 142 at its end. The orifices 104a have a width corresponding to the width of two protuberances 142 contiguous with two assembled half-housings 16a and 16b.

Les demi-boitiers 16a et 16b comportent une paroi latérale respective 160a et 160b délimitant un espace interne V de la borne 6. Les demi-boitiers 16a et 16b d'un même module 16 sont assemblés de manière à former un seul espace interne V délimité par les parois latérales 160a et 160b des demi-boitiers 16a et 16b.The half-boxes 16a and 16b comprise a respective side wall 160a and 160b delimiting an internal space V of the terminal 6. The half-boxes 16a and 16b of the same module 16 are assembled so as to form a single delimited internal space V by the side walls 160a and 160b of the half-boxes 16a and 16b.

Les modules 16 sont juxtaposés les uns aux autres par coopération d'une face externe S160a d'une paroi latérale 160a d'un demi-boitier 16a d'un premier module 16 et d'une face externe S160b d'une paroi latérale 160b d'un demi-boitier 16b d'un second module 16. Comme cela est visible à la figure 1, les bornes 6 sont juxtaposées par contact surfacique entre les faces externes S160a et S160b des demi boitiers 16a et 16b appartenant à deux modules 16 distincts juxtaposés.The modules 16 are juxtaposed to each other by cooperation of an outer face S160a of a side wall 160a of a half-case 16a of a first module 16 and of an outer face S160b of a side wall 160b d 'a half-box 16b of a second module 16. As can be seen on the figure 1 , the terminals 6 are juxtaposed by surface contact between the external faces S160a and S160b of the half-boxes 16a and 16b belonging to two separate juxtaposed modules 16.

Ces parois latérales 160a et 160b séparant deux pôles 60 et 61 de deux bornes 6 différentes permettent de garantir les distances dans l'air et les longueurs de lignes de fuites minimales requises pour ce type de dispositif de connexion électrique. En particulier ces parois 160a et 160b ont une épaisseur e160, visible à la figure 7, prise selon l'axe Y12, qui augmentent la quantité de matière isolante des corps 14 et la distance entre les pièces susceptibles de conduire le courant, c'est-à-dire les ressorts 12 et les pièces conductrices 10, de deux bornes différentes. La longueur des lignes de fuite entre deux bornes 6 est au moins égale à deux fois l'épaisseur e160.These side walls 160a and 160b separating two poles 60 and 61 of two different terminals 6 make it possible to guarantee the distances in the air and the minimum leakage line lengths required for this type of electrical connection device. In particular these walls 160a and 160b have a thickness e160, visible at the figure 7 , taken along the Y12 axis, which increase the amount of insulating material of the bodies 14 and the distance between the parts capable of conducting the current, that is to say the springs 12 and the parts conductors 10, of two different terminals. The length of the creepage lines between two terminals 6 is at least equal to twice the thickness e160.

Claims (9)

  1. Electrical connection device (2) for connecting at least one electric cable (C), comprising a base (4) and at least one connection terminal (6) mounted in the base (4), the connection terminal (6) comprising a conductive part (10), a body (14) and at least one spring (12) adapted to maintain at least one electric cable (C) in contact with the conductive part (10),
    characterised in that the body (14) of the terminal (6) is divided into two half-cases (16a, 16b) which are fitted together, and in that the base (4) defines a housing (40) which receives the body (14) of each terminal (6), the conductive part (10) being fixed in the housing (40), and the conductive part (10) comprises an attachment member (104) which holds the body (14) in its housing (40) of the base (4) by resilient cooperation with a portion (140) of the body (14).
  2. Device according to claim 1, characterised in that each terminal (6) is to connect two electric cables (C) and comprises:
    - a module (16) formed by the two half-cases (16a, 16b) and by two spring leaves (12), each of the two half-cases (16a, 16b) being assembled with a spring leaf (12);
    - the conductive part (10) ensuring electrical contact with the two electric cables (C) and holding the module (16) in the base (4).
  3. Device according to claim 2, characterised in that:
    - the half-cases (16a, 16b) of each module (16) comprise a lateral wall (160a, 160b) delimiting an internal space (V),
    - the half-cases (16a, 16b) of the same module (16) are assembled so as to form a single internal space (V) delimited by the lateral walls (160a, 160b) of the half-cases (16a, 16b),
    - the modules (16) are positioned adjacently to one another by cooperation of the respective outside faces (S160a, S160b) of a lateral wall (160a) of a half-case (16a) of a first module (16) and of a lateral wall (160b) of a half-case (16b) of a second module (16).
  4. Device according to any one of the preceding claims, characterised in that the conductive part (10) is fixed against a fixed contact (42) of the base (4) by a screw (18).
  5. Device according to any one of the preceding claims, characterised in that the portion of the body (14) that cooperates with the attachment member (104) is formed by a deformable tab (140), the free end of which has a protuberance (142) which is received in an orifice (104a) of the attachment member (104) in order to hold the body (14) in the base (4).
  6. Device according to claim 5, characterised in that the deformable tab (140) is deformed on insertion of the connection terminal (6) into the base (4) until the protuberance (142) is received in the orifice (104a).
  7. Device according to either claim 5 or claim 6, characterised in that the protuberance (142) of the deformable tab (140) is maintained housed in the orifice (104a) of the conductive part (10) by a spring leaf (12).
  8. Device according to any one of the preceding claims, characterised in that the terminal (6) comprises a manoeuvrable element (20) for deforming the spring leaf (12) which moves the spring leaf (12) from a deployed position, in which the cable (C) is maintained against the conductive part (10), to a retracted position, in which the cable (C) can be freed from the conductive part (10) and withdrawn from the connection terminal (6).
  9. Device according to claim 8, characterised in that the manoeuvrable element is a pusher (20) which exerts a force (F3) against the spring leaf (12) so as to move the spring leaf (12) away from the conductive part (10).
EP19186541.9A 2018-07-17 2019-07-16 Electrical connection device Active EP3598582B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1856611A FR3084214B1 (en) 2018-07-17 2018-07-17 ELECTRICAL CONNECTION DEVICE

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EP3598582A1 EP3598582A1 (en) 2020-01-22
EP3598582B1 true EP3598582B1 (en) 2021-04-28

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EP (1) EP3598582B1 (en)
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ES (1) ES2882004T3 (en)
FR (1) FR3084214B1 (en)

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Publication number Priority date Publication date Assignee Title
DE102021108600B3 (en) * 2021-04-07 2022-07-07 Harting Electric Gmbh & Co. Kg Connector insert and method of assembly
DE102022103633A1 (en) * 2022-02-16 2023-08-17 WAGO Verwaltungsgesellschaft mit beschränkter Haftung conductor terminal

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Publication number Priority date Publication date Assignee Title
GB2345591B (en) * 1995-12-08 2000-08-23 Channell Ltd Connector unit
FR2792778B1 (en) * 1999-04-22 2001-05-18 Schneider Electric Sa ELASTIC TERMINAL OF ELECTRICAL APPLIANCE
FR2834824B1 (en) * 2002-01-15 2004-04-02 Entrelec ELECTRONIC BOX CONNECTION DEVICE
DE202015105022U1 (en) * 2015-09-22 2016-12-23 Weidmüller Interface GmbH & Co. KG Connection device for conductors
US9444171B1 (en) * 2015-09-30 2016-09-13 Chien-Chang Li Fast wire connector
CN106887726B (en) * 2015-12-15 2019-11-08 泰科电子(上海)有限公司 Clamping device, electric connector and connector assembly

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FR3084214A1 (en) 2020-01-24
ES2882004T3 (en) 2021-11-30
RU2019122161A (en) 2021-01-15
CN110729570B (en) 2022-11-04
FR3084214B1 (en) 2020-10-09
CN110729570A (en) 2020-01-24
EP3598582A1 (en) 2020-01-22

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