EP0311537B1 - Connection terminal for the junction of several electrical cables to different sections entering the same side of the terminal and locked in individual superposed receptacles - Google Patents

Connection terminal for the junction of several electrical cables to different sections entering the same side of the terminal and locked in individual superposed receptacles Download PDF

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Publication number
EP0311537B1
EP0311537B1 EP19880420336 EP88420336A EP0311537B1 EP 0311537 B1 EP0311537 B1 EP 0311537B1 EP 19880420336 EP19880420336 EP 19880420336 EP 88420336 A EP88420336 A EP 88420336A EP 0311537 B1 EP0311537 B1 EP 0311537B1
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EP
European Patent Office
Prior art keywords
terminal
borings
holes
screw
diameter
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Revoked
Application number
EP19880420336
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German (de)
French (fr)
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EP0311537A1 (en
Inventor
Jacques Pierson De Brabois
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Individual
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Individual
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Publication of EP0311537A1 publication Critical patent/EP0311537A1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • H01R11/03—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 characterised by the relationship between the connecting locations
    • H01R11/07—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 characterised by the relationship between the connecting locations the connecting locations being of the same type but different sizes
    • 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
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw

Definitions

  • the present invention relates to a connection terminal, electrically insulated, allowing the connection, between them, of several electric cables of large sections, identical or different, entering on the same side, each cable being blocked individually in an individual housing by a screw. , said housings being superimposed vertically.
  • This terminal can be used for all electrical connections, and mainly in the case where it is necessary to block each cable individually (cables of different sections) and where the cables all arrive on the same side.
  • connection terminals Among the known connection terminals, mention may be made of that described in document US Pat. No. 3,725,851, which consists of two blocks metallic interconnected by a narrow central portion also metallic, one of these blocks having a large diameter orifice for the passage of a conductor of large section, while the other comprises a plurality of holes intended to accommodate conductors small diameter.
  • the terminal object of the present invention makes it possible to facilitate cable connections, which are difficult to achieve with existing terminals, mainly for specific cabling, when the terminals are placed in boxes, boxes or cabinets receiving cables of large different sections, arriving and starting on the same side in a limited space.
  • the terminal according to the invention has for this purpose the characteristics appearing in the characterizing part of claim 1.
  • Figure 1 shows a main metal part according to the invention, considered in isolation.
  • Figure 2 is a section along II-II ( Figure 1), illustrating the positioning of the screws and cables.
  • Figure 3 shows the main part and its screws, before it fits into the two shells of the insulating envelope.
  • Figure 4 is a perspective view of the completed connection terminal, ready for use.
  • Figure 5 is a section along V - V ( Figure 4), illustrating the mode of presentation of cables, for their connection.
  • Figure 6 is an equivalent view, after connection.
  • the terminal object of the present invention, consists of a main part, in copper or brass, a set of main screws 2, and a plastic casing 3.
  • each vertical tapped hole 5 On the small horizontal adjacent face 7 are tapped as many vertical holes 5 as horizontal holes 4 for the cables 8. These tapped holes 5 each receive a grub screw 2, of diameter and length corresponding to the hole.
  • the horizontal 4 and vertical 5 holes are of increasing depths, in stair steps, so that each vertical tapped hole 5 is in communication with only one horizontal cable housing bore 4 ( Figure 2).
  • the stripped cables 8 are threaded into each horizontal hole 4 and locked by the screw 2 housed in the corresponding vertical threaded hole 5.
  • one or more horizontal holes 14 can be provided, the diameter 15 of which, provided to receive the stripped end 16 of a cable 17, may be different from the diameter 18 of the holes 4.
  • Each cable 17 can be, for example, a branch wire.
  • the threaded holes 19 open on the same face 21 as the holes 5 (FIG. 2).
  • the insulating envelope 3 is formed by assembling two shells 22 and 23 made of plastic material (FIG. 3).
  • the screws 2, 20, each in its tapped hole 5, 19, the main metal part 1 is fitted between the two insulating shells 22, 23. These are embedded one inside the other, by the lugs 24 and the holes 25 which position them with precision, then they are definitively assembled together by gluing, by ultrasonic welding, or by any other known method.
  • each hole 27 of the casing 3 is less than the diameter 29 of the corresponding screw 2.
  • the hole 3o, located opposite the screw 20, has a diameter 31 smaller than the diameter 32 of this screw 20.

Description

La présente invention concerne une borne de connexion, isolée électriquement, permettant le raccordement, entre eux, de plusieurs câbles électriques de grosses sections, identiques ou différentes, entrant d'un même côté, chaque câble étant bloqué unitairement dans un logement individuel par une vis, lesdits logements étant superposés verticalement.The present invention relates to a connection terminal, electrically insulated, allowing the connection, between them, of several electric cables of large sections, identical or different, entering on the same side, each cable being blocked individually in an individual housing by a screw. , said housings being superimposed vertically.

Cette borne est utilisable pour toutes les connexions électriques, et principalement dans le cas où il est nécessaire de bloquer chaque câble individuellement (câbles de sections différentes) et où les câbles arrivent tous du même côté.This terminal can be used for all electrical connections, and mainly in the case where it is necessary to block each cable individually (cables of different sections) and where the cables all arrive on the same side.

Il existe, sur le marché, un grand nombre de bornes de connexion, principalement de deux types:

  • soit les bornes classiques, permettant de bloquer des câbles de même section, dans un seul et même logement ;
  • soit les blocs de jonction, où les câbles sont bloqués individuellement dans leur logement, soit à l'opposé, soit côte à côte, mais non pas superposés du même côté.
There are a large number of connection terminals on the market, mainly of two types:
  • either conventional terminals, making it possible to block cables of the same section, in a single housing;
  • either the terminal blocks, where the cables are locked individually in their housing, either opposite or side by side, but not superimposed on the same side.

Parmi les bornes de connexion connues, on peut citer celle qui est décrite dans le document US A-3 725 851, et qui consiste en deux blocs métalliques reliés entre eux par une portion centrale étroite également métallique, l'un de ces blocs comportant un orifice de gros diamètre pour le passage d'un conducteur de grosse section, tandis que l'autre comporte une pluralité de perçages destinés à loger des conducteurs de petit diamètre.Among the known connection terminals, mention may be made of that described in document US Pat. No. 3,725,851, which consists of two blocks metallic interconnected by a narrow central portion also metallic, one of these blocks having a large diameter orifice for the passage of a conductor of large section, while the other comprises a plurality of holes intended to accommodate conductors small diameter.

La borne objet de la présente invention permet des faciliter les connexions de câbles, difficilement réalisables avec les bornes existantes, principalement pour des câblages spécifiques, lorsque les bornes sont placées dans des coffrets, boîtiers ou armoires recevant des câbles de fortes sections différentes, arrivant et repartant du même côté dans un encombrement restreint.The terminal object of the present invention makes it possible to facilitate cable connections, which are difficult to achieve with existing terminals, mainly for specific cabling, when the terminals are placed in boxes, boxes or cabinets receiving cables of large different sections, arriving and starting on the same side in a limited space.

La borne selon l'invention présente à cet effet les caractéristiques figurant dans la partie caractérisante de la revendication 1.The terminal according to the invention has for this purpose the characteristics appearing in the characterizing part of claim 1.

Le dessin annexé, donné à titre d'exemple non limitatif, permettra de mieux comprendre les caractéristiques de l'invention et les avantages qu'elle est susceptible de procurer.The appended drawing, given by way of nonlimiting example, will make it possible to better understand the characteristics of the invention and the advantages which it is likely to provide.

Figure 1 représente une pièce métallique principale selon l'invention, considérée isolément.Figure 1 shows a main metal part according to the invention, considered in isolation.

Figure 2 est une coupe suivant II-II (figure 1), illustrant le positionnement des vis et des câbles.Figure 2 is a section along II-II (Figure 1), illustrating the positioning of the screws and cables.

Figure 3 montre la pièce principale et ses vis , avant son emboîtage dans les deux coquilles de l'enveloppe isolante.Figure 3 shows the main part and its screws, before it fits into the two shells of the insulating envelope.

Figure 4 est une vue en perspective de la borne de connexion terminée , prête à l'emploi.Figure 4 is a perspective view of the completed connection terminal, ready for use.

Figure 5 est une coupe suivant V - V (figure 4) , illustrant le mode de présentation de câbles , en vue de leur raccordement.Figure 5 is a section along V - V (Figure 4), illustrating the mode of presentation of cables, for their connection.

Figure 6 est une vue équivalente , après branchement.Figure 6 is an equivalent view, after connection.

La borne , objet de la présente invention, se compose d'une pièce principale , en cuivre ou laiton , d'un ensemble de vis principales 2 , et d'une enveloppe plastique 3 .The terminal, object of the present invention, consists of a main part, in copper or brass, a set of main screws 2, and a plastic casing 3.

La pièce principale 1 , en cuivre ou laiton , a la forme générale d'un parallélépipède rectangle 1 . Elle est destinée :

  • d'une part ,à recevoir les perçages 4 , pour le logement des câbles 8 , ainsi que les perçages correspondants 5 , taraudés pour les vis 2 ;
  • d'autre part ,grâce à la conductivité naturelle du cuivre ou laiton , à assurer la connexion électrique de l'ensemble des câbles 8 entre eux .
The main part 1, made of copper or brass, has the general shape of a rectangular parallelepiped 1. She is destined :
  • on the one hand, to receive the holes 4, for housing the cables 8, as well as the corresponding holes 5, tapped for the screws 2;
  • on the other hand, thanks to the natural conductivity of copper or brass, to ensure the electrical connection of all of the cables 8 between them.

Sur l'une des petites faces verticales 9 du bloc parallélépipédique sont percés autant de trous horizontaux 4 que de logements de câbles désirés ( de deux à quatre , en général ; trois dans l'exemple illustré ) . Ces trous 4 ont des profondeurs croissantes du haut vers le bas . Ces perçages 4 ont un diamètre correspondant au diamètre imposé par les normes,en fonction du type de câble 8 utilisé , et plus particulièrement de son extrémité dénudée 13.On one of the small vertical faces 9 of the parallelepiped block are drilled as many horizontal holes 4 as desired cable housings (from two to four, in general; three in the example illustrated). These holes 4 have increasing depths from top to bottom. These holes 4 have a diameter corresponding to the diameter imposed by the standards, as a function of the type of cable 8 used, and more particularly of its stripped end 13.

Sur la petite face adjacente horizontale 7 sont taraudés autant de trous verticaux 5 que de perçages horizontaux 4 de logements pour les câbles 8 . Ces trous taraudés 5 reçoivent , chacun , une vis sans tête 2 , de diamètre et de longueur correspondant au trou. Les perçages horizontaux 4 et verticaux 5 sont de profondeurs croissantes , en marches d'escalier , de façon que chaque trou taraudé vertical 5 ne soit en communication qu'avec un seul perçage de logement de câble horizontal 4 ( figure 2).On the small horizontal adjacent face 7 are tapped as many vertical holes 5 as horizontal holes 4 for the cables 8. These tapped holes 5 each receive a grub screw 2, of diameter and length corresponding to the hole. The horizontal 4 and vertical 5 holes are of increasing depths, in stair steps, so that each vertical tapped hole 5 is in communication with only one horizontal cable housing bore 4 (Figure 2).

En utilisation normale , les câbles dénudés 8 sont enfilés dans chaque perçage horizontal 4 et bloqués par la vis 2 logée dans le perçage taraudé vertical correspondant 5 .In normal use, the stripped cables 8 are threaded into each horizontal hole 4 and locked by the screw 2 housed in the corresponding vertical threaded hole 5.

Sur la petite face verticale opposée 9, on peut prévoir un ou plusieurs perçages horizontaux 14 , dont le diamètre 15 , prévu pour recevoir l'extrémité dénudée 16 d'un câble 17 , peut etre différent du diamètre 18 des perçages 4 . Chaque câble 17 peut être , par exemple , un fil de dérivation.On the small opposite vertical face 9, one or more horizontal holes 14 can be provided, the diameter 15 of which, provided to receive the stripped end 16 of a cable 17, may be different from the diameter 18 of the holes 4. Each cable 17 can be, for example, a branch wire.

Dans ce perçage 14 débouche orthogonalement , un trou fileté 19 prévu pour recevoir une vis sans tête 20 .In this bore 14 opens orthogonally, a threaded hole 19 provided for receiving a grub screw 20.

Le , ou les , trous filetés 19 s'ouvrent sur la même face 21 que les perçages 5 ( figure 2).The threaded holes 19 open on the same face 21 as the holes 5 (FIG. 2).

L'enveloppe isolante 3 est formée par assemblage de deux coquilles 22 et 23 en matière plastique ( figure 3) .The insulating envelope 3 is formed by assembling two shells 22 and 23 made of plastic material (FIG. 3).

Des moyens de positionnement sont prévus , par exemple :

  • des ergots mâles 24 , faisant saillie hors du plan de joint de la coquille 22 ;
  • des trous 25 , placés en correspondance autour du plan de joint de la coquille 23 .
Positioning means are provided, for example:
  • male pins 24, projecting out of the joint plane of the shell 22;
  • holes 25, placed in correspondence around the joint plane of the shell 23.

Ainsi , après mise en place , les vis 2 , 20 , chacune dans son trou taraudé 5 , 19 , on emboîte la pièce principale métallique 1 entre les deux coquilles isolantes 22 , 23 . Celles-ci s'encastrent l'une dans l'autre , par les ergots 24 et les trous 25 qui les positionnent avec précision, puis on les assemble définitivement l'une à l'autre par collage , par soudage aux ultra-sons ,ou par tout autre procédé connu.Thus, after installation, the screws 2, 20, each in its tapped hole 5, 19, the main metal part 1 is fitted between the two insulating shells 22, 23. These are embedded one inside the other, by the lugs 24 and the holes 25 which position them with precision, then they are definitively assembled together by gluing, by ultrasonic welding, or by any other known method.

Il est important de remarquer que le diamètre 26 de chaque trou 27 de l'enveloppe 3 est inférieur au diamètre 29 de la vis 2 correspondante. De même , le trou 3o , situé face à la vis 20 , a un diamètre 31 inférieur au diamètre 32 de cette vis 20 . Ainsi , sur la borne terminée ( figures 4 à 6) , il est impossible d'extraire une vis 2 , 20 , en la dévissant complètement . Cela empêche qu'elle soit perdue par inadvertance .It is important to note that the diameter 26 of each hole 27 of the casing 3 is less than the diameter 29 of the corresponding screw 2. Similarly, the hole 3o, located opposite the screw 20, has a diameter 31 smaller than the diameter 32 of this screw 20. Thus, on the completed terminal (Figures 4 to 6), it is impossible to extract a screw 2, 20, by unscrewing it completely. This prevents it from being lost inadvertently.

L'enveloppe plastique 3 joue un triple rôle :

  • isolation électrique de l'ensemble de la borne , selon les normes en vigueur ;
  • accrochage de l'ensemble de la borne sur rail Din standard , symétrique ou assymétrique, par des reliefs profilés 12 prévus à cet effet ;
  • retenue des vis supérieures : les perçages 27 d' accès aux vis 2 sont d'un diamètre légèrement inférieur au diamètre des vis , empêchant celles-ci de sortir de l'enveloppe plastique .
The plastic envelope 3 plays a triple role:
  • electrical insulation of the entire terminal, according to the standards in force;
  • attachment of the entire terminal on standard DIN rail, symmetrical or asymmetrical, by profiled reliefs 12 provided for this purpose;
  • retention of the upper screws: the holes 27 for access to the screws 2 are of a diameter slightly less than the diameter of the screws, preventing the latter from leaving the plastic casing.

Claims (6)

  1. Electrically insulated connection terminal allowing the connection of several electrical cables of large section, identical or different, of a type comprising borings (4) located in alignment on the same side of the said terminal and clamping screws (2) allowing the clamping of each individual cable characterised in that it comprises a metallic element of parallelepiped form cast in one piece (1) intended to be placed in an insulating envelope (3) after placing the cables in position in the borings (4) provided for that purpose, the said borings (4) being formed on one of the small faces (6) of the parallelepiped block (1) and positioned one above the other, the small face (7) adjacent to the block (1) being bored with the same number of tapped holes (5) as the borings (4), the said tapped holes (5) being intended to receive the clamping screws (2), the borings (4) and the tapped holes (5) being disposed in step form, the borings (4) having depths increasing toward the bottom, whilst the tapped holes (5) have correspondingly increasing depths, in such a way that each boring (4) communicates only with a single tapped hole (5), each clamping screw (2) having a length corresponding to that of the tapped hole (5) concerned.
  2. Terminal according to claim 1 characterised in that at least one boring (14) for a small section cable outlet (17) is arranged on the opposite side (9) of the block (1), in relation with a tapped hole (19) arranged on the small adjacent face (7) and intended to receive a headless screw (20).
  3. Terminal according to claims 1 or 2 characterised in that the insulating envelope (3) is composed of two shells (22, 23) mounting the metallic piece (1) intended to be finally assembled by a known technique, gluing or welding, and comprising holes (27, 30) for screws (2, 20).
  4. Terminal according to any one of the preceding claims characterised in that the two insulated shells (22, 23) tail one into the other by means of lugs (24) and holes (25) which allow the positioning of them with precision before their final assembly.
  5. Terminal according to any one of the preceding claims characterised in that the diameter (26) of each hole (27) of the envelope (3) is smaller than the diameter (29) of the corresponding screw (2), whilst the hole (30) situated opposite the screw (20) has a diameter (31) smaller than the diameter (32) of the said screw (20).
  6. Terminal according to any one of the preceding claims characterised in that the insulating envelope (3) possesses, externally, a profiled form (12) for attachment to standard rails.
EP19880420336 1987-10-07 1988-10-05 Connection terminal for the junction of several electrical cables to different sections entering the same side of the terminal and locked in individual superposed receptacles Revoked EP0311537B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8714079A FR2621744B1 (en) 1987-10-07 1987-10-07 CONNECTION TERMINAL ALLOWING THE CONNECTION OF SEVERAL ELECTRICAL CABLES OF DIFFERENT SECTIONS ENTERING ON THE SAME SIDE OF THE TERMINAL AND BEING BLOCKED IN STACKED SINGLE HOUSINGS
FR8714079 1987-10-07

Publications (2)

Publication Number Publication Date
EP0311537A1 EP0311537A1 (en) 1989-04-12
EP0311537B1 true EP0311537B1 (en) 1993-09-22

Family

ID=9355744

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880420336 Revoked EP0311537B1 (en) 1987-10-07 1988-10-05 Connection terminal for the junction of several electrical cables to different sections entering the same side of the terminal and locked in individual superposed receptacles

Country Status (4)

Country Link
EP (1) EP0311537B1 (en)
DE (1) DE3884329T2 (en)
ES (1) ES2045173T3 (en)
FR (1) FR2621744B1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5201678A (en) * 1991-11-06 1993-04-13 Homac Mfg. Company Set screw bus connector
FR2723265B1 (en) * 1994-07-29 1996-10-04 Connecteurs Albert Bonneau Cab ELECTRICAL CONNECTION TERMINAL
FR2746220B1 (en) * 1996-03-14 1998-04-24 ELECTRICAL CONNECTION PLUG
FR2768562B1 (en) * 1997-09-18 1999-11-26 Mecelec Ind CONNECTOR FOR ELECTRICAL CONDUCTORS AND MANUFACTURING METHOD THEREOF
FR2796209B1 (en) * 1999-07-06 2001-08-24 Michel Scola SELF-STRIPING CONNECTOR FOR INSULATED ELECTRICAL CABLES
FR2802025B1 (en) * 1999-12-03 2002-02-15 Legrand Sa CONNECTION BLOCK FOR SINGLE-POLE DISTRIBUTOR AND SINGLE-POLE DISTRIBUTOR COMPRISING SUCH A BLOCK
DE102013111867A1 (en) 2013-10-28 2015-04-30 Phoenix Contact Gmbh & Co. Kg Connection line for a connection device
FR3020725B1 (en) 2014-04-30 2016-05-27 General Exp Ind CONNECTION HOUSING FOR LIGHTING LUMINAIRE
DE202014010345U1 (en) 2014-05-06 2015-07-14 Phoenix Contact Gmbh & Co. Kg Terminal block for an electronic device
CN105742835A (en) * 2016-04-20 2016-07-06 上海电科电器科技有限公司 Connection terminal
CN111864493B (en) * 2020-08-25 2022-10-28 国网河南省电力公司新安县供电公司 Self-adaptive wiring split type double-hole wiring device
FR3128065B1 (en) 2021-10-08 2024-05-03 Lacroix Group Connection terminal block

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2105630A5 (en) * 1970-09-15 1972-04-28 Faeam
US3725851A (en) * 1972-01-31 1973-04-03 Underwriters Safety Device Co Connector for high amperage applications

Also Published As

Publication number Publication date
FR2621744B1 (en) 1992-11-20
EP0311537A1 (en) 1989-04-12
DE3884329D1 (en) 1993-10-28
DE3884329T2 (en) 1994-02-03
FR2621744A1 (en) 1989-04-14
ES2045173T3 (en) 1994-01-16

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