EP2003733B1 - Electrical connection terminal and electrical protection device comprising such a terminal - Google Patents

Electrical connection terminal and electrical protection device comprising such a terminal Download PDF

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Publication number
EP2003733B1
EP2003733B1 EP08354022A EP08354022A EP2003733B1 EP 2003733 B1 EP2003733 B1 EP 2003733B1 EP 08354022 A EP08354022 A EP 08354022A EP 08354022 A EP08354022 A EP 08354022A EP 2003733 B1 EP2003733 B1 EP 2003733B1
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EP
European Patent Office
Prior art keywords
flap
called
connection terminal
terminal
tunnel
Prior art date
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Application number
EP08354022A
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German (de)
French (fr)
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EP2003733A1 (en
Inventor
Daniel Vanzetto
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Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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Publication of EP2003733A1 publication Critical patent/EP2003733A1/en
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    • 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
    • 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
    • H01R4/70—Insulation of connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/44—Means for preventing access to live contacts
    • 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
    • H01R13/64—Means for preventing incorrect coupling

Definitions

  • the present invention relates to a terminal for connecting conductors to a modular electrical appliance housed in an insulating housing, said terminal comprising a cage forming a frame delimiting an opening for inserting a connection pad of the electrical appliance and for a conductor to be connected, a clamping screw for clamping the cable between the connection pad and either the cage or said screw, and a so-called first bib adapted to prevent the insertion of a cable under the cage of the terminal .
  • this device comprises a flap consisting of an angled piece integral with the cage and extending in a direction opposite to the screw, so as to prevent access for a cable or the tooth of 'a comb, to the space under the cage. But when the terminal is tightened on a small diameter conductor, if the flap is metallic, there is a risk of electrocution because the flap is accessible.
  • the document is known WO 02/075889 describing an electrical apparatus having terminals of the kind previously mentioned, said terminals being equipped with a plastic flap mounted on a bracket, the assembly being fixed to the cage by means of a pin system.
  • a plastic flap mounted on a bracket the assembly being fixed to the cage by means of a pin system.
  • This terminal comprises a cage having a hook on which can be fixed an insulating part, said insulating part having a wall opposite the opening of the terminal.
  • the insulating part has two wings adapted to cooperate with recesses formed in the lower part of the cage for fixing said insulating part on the cage.
  • the present invention solves these disadvantages and provides a connection terminal of simple design whose flap is captive and does not increase the size of the terminal.
  • the present invention relates to a terminal according to claim 1.
  • the vertical locking means comprise a lug provided on the said second bar adapted to cooperate with a notch belonging to the so-called first bar.
  • the aforementioned pin is placed inside the so-called second insulating flap on one of the lateral edges of said flap and the notch is placed on one of the lateral edges of the so-called first flap.
  • the horizontal locking means of said second flap comprises a clip placed in one of the corners of an elastic face belonging to the so-called second flap, said clips cooperating with said first flap for horizontal locking of the so-called second bib with respect to the so-called first bib.
  • the so-called second bib comprises a rear face and a front face, the rear face being connected laterally to the front face by a side wall, and the rear face bearing on the so-called first bib.
  • the aforementioned lateral wall comprises the aforementioned pin.
  • said second bib comprises a rear face and a front face, said faces being connected to their lower parts by a bottom wall.
  • the present invention also relates to an electrical protection device comprising at least one terminal, said terminal having the above-mentioned characteristics taken alone or in combination.
  • terminal 1 cage intended to be integrated in the housing 2 of an electrical protection apparatus as shown partially on the figure 7 to make the electrical connection upstream or downstream of said apparatus.
  • this terminal comprises a cage 3 consisting of a metal part of substantially parallelepipedal shape having a through opening 4 for allowing the passage of an electrical conductor and the contact area of the device (not shown ).
  • This substantially parallelepiped-shaped piece has two side walls 5, 6 connected at their upper part by an upper wall 7 and at their lower part by a bottom wall 8.
  • this terminal also comprises a clamping screw (not shown) intended to be screwed into the upper wall 7 of the cage and intended to move or move the cage (according to the chosen embodiment) so as to achieve the tightening of the conductor between the cage and the beach or between the screw and the beach, when it is actuated.
  • This terminal also comprises a metal flap 9 said first, integral with said bottom wall 8 and extending substantially perpendicular to said wall 8.
  • This flap 9 is intended to prevent the introduction of a driver or a tooth comb by mistake, under the cage 3 of the terminal.
  • this terminal also comprises a flap 10, said second, made of an insulating material such as plastic to be fixed on the metal flap 9 as will be explained below.
  • This insulating flap 10 is formed by a U-shaped part comprising two main walls 11,12 connected by a bottom wall 13 and laterally by a side wall 14. This part is intended to be mounted laterally around the metal flap 9 next the direction of the arrow on the figure 1 .
  • This insulating flap 10 comprises, located between its two main faces 11, 12, fixed on the aforementioned side face 14, on one of the lateral edges of the insulating flap 10 and halfway up the insulating flap, a lug 15 intended to fit in a notch 16 provided on one 17 of the sides of the metal flap 9 to ensure the locking of the flap insulating in the vertical direction parallel to the axis of movement of the screw or cage as appropriate.
  • a lug 15 intended to fit in a notch 16 provided on one 17 of the sides of the metal flap 9 to ensure the locking of the flap insulating in the vertical direction parallel to the axis of movement of the screw or cage as appropriate.
  • the lateral size of the terminal is not modified by the insulating flap.
  • the bib does not overflow the terminal.
  • the costs of the terminal and the insulating flap can remain low.
  • the metal bib of the terminal and the insulating flap have simple shapes that can produce low cost manufacturing tools.
  • This insulating flap also comprises a clip 18 placed in the angle of one of its main faces 11, 12, this clip 18 being intended to cooperate with the edge 21 of the metal flap 9 opposite that with the notch 16. , so as to lock the insulating flap 10 laterally.
  • the face on which the clip is placed is flexible to allow the clips to work. Again, by placing the clip in the corner, the drawers of the mold are achievable while the room is very narrow. Thus, the bib is securely fixed horizontally.
  • the lateral size of the terminal is not modified by the insulating flap.
  • the bib does not overflow the terminal. Again, the cost of the terminal and the flap remain low.
  • the metal bib of the terminal and the insulating flap have simple shapes that can produce low cost manufacturing tools.
  • One 11 of the main faces 11, 12 of the insulating flap 10, called the rear face bears behind the metal flap 9 of the terminal, this face being bonded laterally to the other main face 12, said front face by the side wall. aforementioned 14.
  • the flap can resist tearing in the outgoing direction of the cable.
  • the support of the insulating flap on the rear face of the metal flap and the lateral connection between the rear face and the front face gives strength to the front face of the insulating flap.
  • the flap is securely fixed transversely.
  • the lateral dimensions of the terminal are not modified by the insulating flap, which does not extend beyond the terminal. The flap thus becomes captive during the assembly of the terminal in the devices thanks to the presence of the two lugs.
  • the invention has made it possible to attach an insulating flap on a thin sheet which is demoldable and solid on tearing.
  • This invention can be applied to the terminals of circuit breakers and associated equipment, modular or not, advantageously to small caliber devices equipped with small terminals using thin sheets. Its use could also be extended to larger size terminals.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Breakers (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

The terminal (1) has a metal cover insulating flap (10) laterally mounted around a metal cover flap (9) along direction perpendicular to direction of displacement of a screw or cage (3). Locking units are constituted by a pin and a thumb notch for locking the flap (10) with respect to the flap (9) in vertical direction parallel to the displacement axis. A clip locks the flap (10) with respect to the flap (9) in horizontal direction perpendicular to the displacement axis.

Description

La présente invention concerne une borne de raccordement de conducteurs à un appareil électrique modulaire logé dans un boîtier isolant, ladite borne comprenant une cage formant un cadre délimitant une ouverture permettant l'insertion d'une plage de connexion de l'appareil électrique et d'un conducteur à raccorder, une vis de serrage destinée à serrer le câble entre la plage de connexion et, soit la cage, soit ladite vis, et une bavette dite première apte à empêcher l'introduction d'un câble sous la cage de la borne.The present invention relates to a terminal for connecting conductors to a modular electrical appliance housed in an insulating housing, said terminal comprising a cage forming a frame delimiting an opening for inserting a connection pad of the electrical appliance and for a conductor to be connected, a clamping screw for clamping the cable between the connection pad and either the cage or said screw, and a so-called first bib adapted to prevent the insertion of a cable under the cage of the terminal .

On connaît des dispositifs pour empêcher l'introduction d'un câble ou d'une dent de peigne par erreur sous la cage d'une borne dans un disjoncteur électrique tel que celui décrit dans le brevet FR 2 612 340 . Dans ce brevet, ce dispositif comporte une bavette consistant en une pièce en forme d'équerre venue de matière avec la cage et s'étendant dans une direction opposée à la vis, de manière à empêcher l'accès pour un câble ou la dent d'un peigne, à l'espace situé sous la cage. Or lorsque la borne est serrée sur un conducteur de petit diamètre, si la bavette est métallique, il y a un risque d'électrocution car la bavette est accessible.Devices are known to prevent the insertion of a cable or a comb tooth by mistake under the cage of a terminal in an electric circuit breaker such as that described in the patent FR 2,612,340 . In this patent, this device comprises a flap consisting of an angled piece integral with the cage and extending in a direction opposite to the screw, so as to prevent access for a cable or the tooth of 'a comb, to the space under the cage. But when the terminal is tightened on a small diameter conductor, if the flap is metallic, there is a risk of electrocution because the flap is accessible.

Afin de résoudre ce problème, il a été prévu de réaliser des bavettes en matériau plastique.In order to solve this problem, it has been planned to make bibs made of plastic material.

On connaît par exemple le document WO 02/075889 décrivant un appareil électrique comportant des bornes du genre précédemment mentionné, lesdites bornes étant équipées d'une bavette plastique montée sur une équerre, l'ensemble étant fixé sur la cage au moyen d'un système à goupille. L'un des inconvénients de ce système de bavette isolante tient en ce que les pièces ne sont pas imperdables et en ce que ces bavettes manquent de rigidité.For example, the document is known WO 02/075889 describing an electrical apparatus having terminals of the kind previously mentioned, said terminals being equipped with a plastic flap mounted on a bracket, the assembly being fixed to the cage by means of a pin system. One of the disadvantages of this insulating flap system is that the parts are not captive and that these flaps lack rigidity.

Et l'on connaît également le document WO 98/53470 décrivant une borne électrique comportant une protection contre l'introduction des doigts. Cette borne comporte une cage comportant un crochet sur lequel peut être fixé une pièce isolante, ladite pièce isolante comportant une paroi en regard de l'ouverture de la borne. La pièce isolante comporte deux ailes aptes à coopérer avec des évidements formés à la partie inférieure de la cage pour fixer ladite pièce isolante sur la cage.
Les principaux inconvénients de cette borne tiennent en ce qu'elle présente une structure compliquée et un encombrement important sous la cage.And we also know the document WO 98/53470 describing an electrical terminal having a protection against the introduction of the fingers. This terminal comprises a cage having a hook on which can be fixed an insulating part, said insulating part having a wall opposite the opening of the terminal. The insulating part has two wings adapted to cooperate with recesses formed in the lower part of the cage for fixing said insulating part on the cage.
The main drawbacks of this terminal are that it has a complicated structure and a large space under the cage.

La présente invention résout ces inconvénients et propose une borne de raccordement de conception simple dont la bavette est imperdable et n'augmentant pas l'encombrement de la borne.The present invention solves these disadvantages and provides a connection terminal of simple design whose flap is captive and does not increase the size of the terminal.

Le document US-A-5 580 285 montre une borne selon le préambule de la revendication 1.The document US-A-5,580,285 shows a terminal according to the preamble of claim 1.

La présente invention a pour objet une borne selon la revendication 1.The present invention relates to a terminal according to claim 1.

Selon une caractéristique particulière de l'invention, les moyens de verrouillage vertical comportent un ergot prévu sur la barrette dite seconde apte à coopérer avec une encoche appartenant à la barrette dite première.According to a particular feature of the invention, the vertical locking means comprise a lug provided on the said second bar adapted to cooperate with a notch belonging to the so-called first bar.

Selon une caractéristique particulière, l'ergot précité est placé à l'intérieur de la bavette isolante dite seconde sur l'un des bords latéraux de ladite bavette et l'encoche est placée sur l'un des bords latéraux de la bavette dite première.According to a particular feature, the aforementioned pin is placed inside the so-called second insulating flap on one of the lateral edges of said flap and the notch is placed on one of the lateral edges of the so-called first flap.

Selon une autre caractéristique, les moyens de verrouillage horizontal de la bavette dite seconde comportent un clips placé dans l'un des angles d'une face élastique appartenant à la bavette dite seconde, ledit clips coopérant avec la bavette dite première pour assurer le verrouillage horizontal de la bavette dite seconde par rapport à la bavette dite première.According to another characteristic, the horizontal locking means of said second flap comprises a clip placed in one of the corners of an elastic face belonging to the so-called second flap, said clips cooperating with said first flap for horizontal locking of the so-called second bib with respect to the so-called first bib.

Selon une autre caractéristique, la bavette dite seconde comporte une face arrière et une face avant, la face arrière étant reliée latéralement à la face avant par une paroi latérale, et la face arrière prenant appui sur la bavette dite première.According to another characteristic, the so-called second bib comprises a rear face and a front face, the rear face being connected laterally to the front face by a side wall, and the rear face bearing on the so-called first bib.

Selon une autre caractéristique, la paroi latérale précitée comporte l'ergot précité.According to another characteristic, the aforementioned lateral wall comprises the aforementioned pin.

Selon une autre caractéristique, la bavette dite seconde comporte une face arrière et une face avant, lesdites faces étant reliées à leurs parties inférieures par une paroi de fond.According to another feature, said second bib comprises a rear face and a front face, said faces being connected to their lower parts by a bottom wall.

La présente invention a encore pour objet un appareil de protection électrique comportant au moins une borne, ladite borne comportant les caractéristiques précédemment mentionnées prises seules ou en combinaison.The present invention also relates to an electrical protection device comprising at least one terminal, said terminal having the above-mentioned characteristics taken alone or in combination.

Mais d'autres avantages et caractéristiques de l'invention apparaîtront mieux dans la description détaillée qui suit et se réfère aux dessins annexés donnés uniquement à titre d'exemple et dans lesquels :

  • La figure 1 est une vue en perspective illustrant la cage d'une borne selon l'invention préalablement citée montrant la fixation de la bavette isolante sur la bavette métallique,
  • Les figures 2 et 3 sont deux vues en perspective suivant deux orientations opposées de la bavette isolante selon l'invention,
  • La figure 4 est une vue de face de ladite borne, la bavette isolante étant montée sur la bavette métallique de la borne,
  • La figure 5 est une vue de côté de ladite borne,
  • La figure 6 est une vue en perspective de ladite borne, et
  • La figure 7 est une vue en perspective, illustrant une partie du boîtier d'un disjoncteur dans lequel sont montés deux bornes à cage selon l'invention.
But other advantages and features of the invention will become more apparent in the detailed description which follows and refers to the accompanying drawings given solely by way of example and in which:
  • The figure 1 is a perspective view illustrating the cage of a terminal according to the invention mentioned above showing the fixing of the insulating flap on the metal flap,
  • The Figures 2 and 3 are two perspective views in two opposite orientations of the insulating flap according to the invention,
  • The figure 4 is a front view of said terminal, the insulating flange being mounted on the metal flange of the terminal,
  • The figure 5 is a side view of the said monument,
  • The figure 6 is a perspective view of the said monument, and
  • The figure 7 is a perspective view, illustrating a portion of the casing of a circuit breaker in which are mounted two cage terminals according to the invention.

Sur les figures 1 à 6 a été représentée une borne 1 à cage selon l'invention destinée à être intégrée dans le boîtier 2 d'un appareil de protection électrique tel que représenté partiellement sur la figure 7, pour réaliser le raccordement électrique en amont ou en aval dudit appareil.On the Figures 1 to 6 has been shown a terminal 1 cage according to the invention intended to be integrated in the housing 2 of an electrical protection apparatus as shown partially on the figure 7 to make the electrical connection upstream or downstream of said apparatus.

Comme ceci est connu en soi, cette borne comporte une cage 3 constituée par une pièce métallique de forme sensiblement parallélépipédique comportant une ouverture traversante 4 destinée à permettre le passage d'un conducteur électrique et de la plage de contact de l'appareil (non représentés). Cette pièce de forme sensiblement parallélépipédique comporte deux parois latérales 5,6 reliées à leur partie supérieure par une paroi supérieure 7 et à leur partie inférieure par une paroi de fond 8.
De manière connue en soi, cette borne comporte également une vis de serrage (non représentée) destinée à être vissée dans la paroi supérieure 7 de la cage et destinée à se déplacer ou à déplacer la cage (selon la réalisation choisie) de manière à réaliser le serrage du conducteur entre la cage et la plage ou entre la vis et la plage, lors de son actionnement.
Cette borne comporte également une bavette métallique 9 dite première, venue de matière avec ladite paroi de fond 8 et s'étendant sensiblement perpendiculairement à ladite paroi 8. Cette bavette 9 est destinée à empêcher l'introduction d'un conducteur ou d'une dent de peigne par erreur, sous la cage 3 de la borne.
Conformément à l'invention, cette borne comporte également une bavette 10, dite seconde, réalisée en un matériau isolant tel le plastique destinée à être fixée sur la bavette métallique 9 comme ceci sera expliqué ci-après.
Cette bavette isolante 10 est formée par une pièce en forme de U comportant deux parois principales 11,12 reliées par une paroi de fond 13 et latéralement par une paroi latérale 14. Cette pièce est destinée à être montée latéralement autour de la bavette métallique 9 suivant le sens de la flèche sur la figure 1.
Cette bavette isolante 10 comporte, située entre ses deux faces principales 11,12, fixé sur la face latérale précitée 14, sur l'un 20 des bords latéraux de la bavette isolante 10 et à mi-hauteur de la bavette isolante, un ergot 15 destiné à s'encastrer dans une encoche 16 prévue sur l'un 17 des côtés de la bavette métallique 9 pour assurer le verrouillage de la bavette isolante dans le sens vertical parallèlement à l'axe de déplacement de la vis ou de la cage selon le cas.
En plaçant l'ergot 15 sur le bord latéral de la bavette isolante 10, les tiroirs du moule de fabrication de la bavette sont réalisables même si la pièce est très étroite.
Ainsi, la bavette isolante est solidement immobilisée verticalement par rapport à la bavette métallique. Les risques d'arrachement par pression exercée par les câbles ou les dents de peigne sont limités. L'encombrement latéral de la borne n'est pas modifié par la bavette isolante. La bavette ne déborde pas de la borne.
Les coûts de la borne et de la bavette isolante peuvent rester bas. La bavette métallique de la borne et la bavette isolante ont des formes simples qui permettent de réaliser des outillages de fabrication de faibles coûts.
Cette bavette isolante comporte également un clips 18 placé dans l'angle de l'une 12 de ses faces principales 11,12, ce clips 18 étant destiné à coopérer avec le bord 21 de la bavette métallique 9 opposé à celui comportant l'encoche 16, de manière à verrouiller la bavette isolante 10 latéralement. La face, sur laquelle le clips est placé est flexible pour permettre au clips de fonctionner.
Là encore, en plaçant le clips dans l'angle, les tiroirs du moule sont réalisables alors que la pièce est très étroite. Ainsi, la bavette est solidement fixée horizontalement. L'encombrement latéral de la borne n'est pas modifié par la bavette isolante. La bavette ne déborde pas de la borne. Là encore, le coût de la borne et de la bavette restent bas. La bavette métallique de la borne et la bavette isolante ont des formes simples qui permettent de réaliser des outillages de fabrication de faibles coûts.
L'une 11 des faces principales 11,12 de la bavette isolante 10, dite face arrière, prend appui derrière la bavette métallique 9 de la borne, cette face étant liée latéralement à l'autre face principale 12 dite face avant par la paroi latérale précitée 14.
Ainsi, la bavette peut résister à l'arrachement dans le sens sortant du câble. L'appui de la bavette isolante sur la face arrière de la bavette métallique et la liaison latérale entre la face arrière et la face avant donne de la solidité à la face avant de la bavette isolante.
Ainsi, la bavette est solidement fixée transversalement. L'encombrement latéral de la borne n'est pas modifié par la bavette isolante, laquelle ne déborde pas de la borne.
La bavette devient ainsi imperdable durant l'assemblage de la borne dans les appareils grâce à la présence des deux ergots.As is known per se, this terminal comprises a cage 3 consisting of a metal part of substantially parallelepipedal shape having a through opening 4 for allowing the passage of an electrical conductor and the contact area of the device (not shown ). This substantially parallelepiped-shaped piece has two side walls 5, 6 connected at their upper part by an upper wall 7 and at their lower part by a bottom wall 8.
In a manner known per se, this terminal also comprises a clamping screw (not shown) intended to be screwed into the upper wall 7 of the cage and intended to move or move the cage (according to the chosen embodiment) so as to achieve the tightening of the conductor between the cage and the beach or between the screw and the beach, when it is actuated.
This terminal also comprises a metal flap 9 said first, integral with said bottom wall 8 and extending substantially perpendicular to said wall 8. This flap 9 is intended to prevent the introduction of a driver or a tooth comb by mistake, under the cage 3 of the terminal.
According to the invention, this terminal also comprises a flap 10, said second, made of an insulating material such as plastic to be fixed on the metal flap 9 as will be explained below.
This insulating flap 10 is formed by a U-shaped part comprising two main walls 11,12 connected by a bottom wall 13 and laterally by a side wall 14. This part is intended to be mounted laterally around the metal flap 9 next the direction of the arrow on the figure 1 .
This insulating flap 10 comprises, located between its two main faces 11, 12, fixed on the aforementioned side face 14, on one of the lateral edges of the insulating flap 10 and halfway up the insulating flap, a lug 15 intended to fit in a notch 16 provided on one 17 of the sides of the metal flap 9 to ensure the locking of the flap insulating in the vertical direction parallel to the axis of movement of the screw or cage as appropriate.
By placing the lug 15 on the lateral edge of the insulating flap 10, the drawers of the mold for manufacturing the flap are feasible even if the room is very narrow.
Thus, the insulating flap is securely immobilized vertically relative to the metal flap. The risk of pulling out by pressure exerted by the cables or the comb teeth is limited. The lateral size of the terminal is not modified by the insulating flap. The bib does not overflow the terminal.
The costs of the terminal and the insulating flap can remain low. The metal bib of the terminal and the insulating flap have simple shapes that can produce low cost manufacturing tools.
This insulating flap also comprises a clip 18 placed in the angle of one of its main faces 11, 12, this clip 18 being intended to cooperate with the edge 21 of the metal flap 9 opposite that with the notch 16. , so as to lock the insulating flap 10 laterally. The face on which the clip is placed is flexible to allow the clips to work.
Again, by placing the clip in the corner, the drawers of the mold are achievable while the room is very narrow. Thus, the bib is securely fixed horizontally. The lateral size of the terminal is not modified by the insulating flap. The bib does not overflow the terminal. Again, the cost of the terminal and the flap remain low. The metal bib of the terminal and the insulating flap have simple shapes that can produce low cost manufacturing tools.
One 11 of the main faces 11, 12 of the insulating flap 10, called the rear face, bears behind the metal flap 9 of the terminal, this face being bonded laterally to the other main face 12, said front face by the side wall. aforementioned 14.
Thus, the flap can resist tearing in the outgoing direction of the cable. The support of the insulating flap on the rear face of the metal flap and the lateral connection between the rear face and the front face gives strength to the front face of the insulating flap.
Thus, the flap is securely fixed transversely. The lateral dimensions of the terminal are not modified by the insulating flap, which does not extend beyond the terminal.
The flap thus becomes captive during the assembly of the terminal in the devices thanks to the presence of the two lugs.

Tous ces avantages sont obtenus grâce aux caractéristiques précitées qui permettent à la bavette de présenter un coût de réalisation de la borne et de la bavette particulièrement bas.All these advantages are obtained thanks to the aforementioned characteristics that allow the flap to present a cost of realization of the terminal and the flap particularly low.

On a donc réalisé grâce à l'invention une bavette isolante de conception simple, d'encombrement réduit et de coût réduit, qui ne peut pas être arrachée facilement par les câbles ou les dents de peigne.
L'invention a permis de réaliser l'accrochage d'une bavette isolante sur une tôle mince qui soit démoulable et solide à l'arrachement.
Cette invention peut être appliquée aux bornes de disjoncteurs et d'appareillages associés, modulaires ou non, avantageusement aux appareils de petits calibres équipés de bornes de petites tailles utilisant des tôles minces. Son utilisation pourrait être également étendue aux bornes de plus grandes tailles.An insulating flap of simple design, reduced overall size and reduced cost, which can not be easily torn off by the cables or the comb teeth, has thus been made possible by the invention.
The invention has made it possible to attach an insulating flap on a thin sheet which is demoldable and solid on tearing.
This invention can be applied to the terminals of circuit breakers and associated equipment, modular or not, advantageously to small caliber devices equipped with small terminals using thin sheets. Its use could also be extended to larger size terminals.

Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et illustrés qui n'ont été donnés qu'à titre d'exemple.Of course, the invention is not limited to the embodiments described and illustrated which have been given by way of example.

Au contraire, l'invention comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci sont réalisées suivant son esprit.On the contrary, the invention comprises all the technical equivalents of the means described and their combinations if they are carried out according to its spirit.

Claims (9)

  1. A connection terminal for connecting conductors to a modular electrical switchgear device housed in an insulating case, said connection terminal comprising:
    - a tunnel forming a frame delineating an opening for insertion of a connection terminal pad of the electrical switchgear device and of a conductor to be connected,
    - a clamping screw screwed into one of the walls of the tunnel and designed to clamp the cable between the connection pad and either the tunnel or said screw by movement of the screw or of the tunnel,
    - a flap called first flap able to prevent a cable from being inserted under the tunnel of the connection terminal,
    - a flap called second flap, the connection terminal comprising securing means (15,16) of the flap called second flap (10) with respect to the flap called first flap (9) in the vertical direction parallel to the above-mentioned axis of movement, characterized in that the flap called second flap (10) is made from insulating material and is able to be fitted laterally around the flap called first flap (9) in a direction substantially perpendicular to the direction of movement of the screw or of the tunnel, and in that the connection terminal comprises securing means (18) of the flap called second flap (10) with respect to the flap called first flap (9) in the horizontal direction, i.e. substantially perpendicularly to the above-mentioned axis of movement.
  2. The connection terminal according to claim 1, characterized in that the vertical securing means (15,16) comprise a lug (15) provided on the flap called second flap (10) and designed to operate in conjunction with a lateral notch (16) belonging to the flap called first flap (9).
  3. The connection terminal according to claim 1 or 2, characterized in that the above-mentioned lug (15) is located inside the insulating flap (10), on one (20) of the side edges of said flap (10), and that the notch (16) is located on one (17) of the side edges of the flap called first flap (9).
  4. The connection terminal according to any one of claims 1 to 3, characterized in that the horizontal securing means of the flap called second flap (10) comprise a clip (18) placed in one of the corners of a flexible face (12) belonging to the flap called second flap (10), said clip (18) operating in conjunction with the flap called first flap (9) to perform horizontal securing of the flap (10) called second flap with respect to the flap called first flap (9).
  5. The connection terminal according to claim 4, characterized in that the flap called second flap (10) comprises a rear face (11) and a front face (12), the rear face (11) being joined laterally to the front face by a side wall (14) and the rear face (11) pressing on the flap called first flap (9).
  6. The connection terminal according to claim 5, characterized in that the above-mentioned side wall (14) comprises the above-mentioned lug (15).
  7. The connection terminal according to any one of the foregoing claims, characterized in that the flap called second flap (10) comprises a rear face (11) and a front face (12), said faces being joined at their bottom parts by a bottom wall (13).
  8. An electrical protection device comprising at least one connection terminal according to any one of the foregoing claims.
  9. The electrical protection device according to claim 8 characterized in that the latter is a circuit breaker.
EP08354022A 2007-06-11 2008-03-18 Electrical connection terminal and electrical protection device comprising such a terminal Active EP2003733B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0704132A FR2917243B1 (en) 2007-06-11 2007-06-11 ELECTRICAL CONNECTION TERMINAL AND ELECTRICAL PROTECTION APPARATUS COMPRISING SUCH A TERMINAL

Publications (2)

Publication Number Publication Date
EP2003733A1 EP2003733A1 (en) 2008-12-17
EP2003733B1 true EP2003733B1 (en) 2009-09-16

Family

ID=38902682

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08354022A Active EP2003733B1 (en) 2007-06-11 2008-03-18 Electrical connection terminal and electrical protection device comprising such a terminal

Country Status (6)

Country Link
EP (1) EP2003733B1 (en)
CN (1) CN101325287B (en)
AT (1) ATE443354T1 (en)
DE (1) DE602008000142D1 (en)
ES (1) ES2330811T3 (en)
FR (1) FR2917243B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103177909B (en) * 2011-12-26 2016-03-30 西门子公司 Termination
CN102780102A (en) * 2012-07-26 2012-11-14 上海友邦电气(集团)股份有限公司 Wire pressing frame for low-voltage apparatus
FR3090225B1 (en) * 2018-12-13 2020-11-27 Schneider Electric Ind Sas TERMINAL WITH TIGHTENING COMPENSATION IN PARTICULAR FOR AN ELECTRICAL PROTECTION DEVICE.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH456714A (en) * 1967-11-13 1968-07-31 Oskar Woertz H & O Woe Electrical clamp
FR2612340B1 (en) 1987-03-13 1993-02-12 Merlin Gerin MULTIPLE CONNECTION TERMINAL FOR MODULAR ELECTRICAL APPARATUS
IT1264956B1 (en) * 1993-07-20 1996-10-17 Bticino Spa MODULAR ELECTRICAL EQUIPMENT WITH INHERENT FINGER-PROOF PROTECTION OF CLAMPING CLAMPS
FR2720862B1 (en) * 1994-06-06 1996-07-05 Schneider Electric Sa Connection terminal for electrical equipment.
IT237508Y1 (en) 1997-05-20 2000-09-13 Gewiss Spa TERMINAL STRUCTURE WITH FINGER-PROOF PROTECTION, PARTICULARLY FOR ELECTRICAL EQUIPMENT
AT410613B (en) 2001-03-20 2003-06-25 Moeller Gebaeudeautomation Kg LIFT CLAMP

Also Published As

Publication number Publication date
FR2917243A1 (en) 2008-12-12
FR2917243B1 (en) 2009-07-10
EP2003733A1 (en) 2008-12-17
DE602008000142D1 (en) 2009-10-29
ES2330811T3 (en) 2009-12-15
CN101325287B (en) 2012-09-05
ATE443354T1 (en) 2009-10-15
CN101325287A (en) 2008-12-17

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