EP0896387A1 - Screw clamp and terminal block for an electrical apparatus - Google Patents

Screw clamp and terminal block for an electrical apparatus Download PDF

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Publication number
EP0896387A1
EP0896387A1 EP98401774A EP98401774A EP0896387A1 EP 0896387 A1 EP0896387 A1 EP 0896387A1 EP 98401774 A EP98401774 A EP 98401774A EP 98401774 A EP98401774 A EP 98401774A EP 0896387 A1 EP0896387 A1 EP 0896387A1
Authority
EP
European Patent Office
Prior art keywords
cage
stirrup
connection
screw
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.)
Granted
Application number
EP98401774A
Other languages
German (de)
French (fr)
Other versions
EP0896387B1 (en
Inventor
Emmanuel Ing. Latour
Alain Moreaux
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 SE
Schneider Electric Industries SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schneider Electric SE, Schneider Electric Industries SAS filed Critical Schneider Electric SE
Publication of EP0896387A1 publication Critical patent/EP0896387A1/en
Application granted granted Critical
Publication of EP0896387B1 publication Critical patent/EP0896387B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
    • H01R4/2408—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws

Definitions

  • the present invention relates to a screw terminal having a crossed cage by a connection tab specific to the device, the screw being associated with a clamp to tighten a cable between it and the connection lug. She also relates to a terminal block with insulating body associated with an electrical appliance at low voltage and comprising in insulating housings several such screw terminals.
  • Screw terminals of this type are well known. They allow you to connect a cable to the device with which they are associated without first having strip the end of the cable. It is desirable to make such terminals in a simple manner, with nevertheless a very good quality of tightening, and, in some cases, using connection devices capable of receive one or two non-stripped cables in each terminal.
  • the object of the invention is to facilitate the production and mounting of terminals and terminal blocks meeting these requirements.
  • the wings of the stirrup have at their free end and towards inside the U a retaining heel for the cable; the stirrup soul understands two ribs whose height is substantially equal to or greater than the thickness of the insulating sheath of the cable to be tightened, these ribs being located each near a wing of the contact piece.
  • a second stirrup facing the first is provided at the bottom of the cage bracket, as well as two contact pieces in the cage and between the brackets with insulation piercing claws mounted back to back and applicable against opposite sides of the connection tab.
  • connection terminal block with associated insulating body.
  • a low-voltage electrical appliance comprising in housings insulators several screw terminals described, the insulating body of the device authorizing the sliding of the cage and being provided with passages for the connection ranges.
  • the terminal block is removable and has near the passage of each connection pad a pre-positioning relief for a contact part.
  • Figure 1 shows in perspective from below an electrical device provided with the terminal block according to the invention, with partial cut-out at the level one of the terminals.
  • Figure 3 is a bottom view of the device, without its terminal block.
  • Figure 4 is a bottom view with partial section of the terminal block body.
  • FIGS. 5 and 6 are elevation views of a terminal according to the invention, respectively in the loose state and in the tight state.
  • FIGS. 7 and 8 show the terminal in section along plane B of FIG. 5, respectively in the loose and tight states.
  • Figure 9 shows a screw-clamp assembly specific to the terminal.
  • Figure 10 shows in perspective a claw contact part specific to the thick headed.
  • the device shown in the figures is a multipolar electrical device with low voltage which can have a connection function or a function of interruption, for example in the latter case of the contactor type, contactor-circuit breaker or circuit breaker.
  • the device includes a case 10 of generally parallelepiped shape having a front face 11, a rear face 12 for attachment to a support not indicated, side faces 13.14 and upper and lower faces 15.16. It is provided projecting from the underside 16 of the tabs or flat plugs 17 which form the ranges of connection corresponding to the different poles.
  • the terms forward, backward, etc. are of course chosen in relation to the usual mounting direction of the device on its support.
  • a terminal block 20 is fixed against the underside 16 of the device by means of usual means not indicated.
  • the terminal block has an insulating body with of a front face 21, of a rear face 22, of lateral sides 23, 24 and of upper and lower faces 25.26; it consists of a base 27 and a cover 28 attached permanently or removable by snap-fastening or any other means on the base.
  • Terminal block 20 includes three slots 29 separated by partitions for as many clamping terminals 30 cables.
  • the indicated terminals are double, that is to say intended to receive two conductors, but they could also be simple.
  • Each terminal is of the screw type 34 cooperating with a tapped hole provided in a mobile and guided cage 35 in the housing 29.
  • the terminal is designed to clamp two cables in separate locations and includes this effect two stirrups 41.42 in general U shape and two grip pieces contact 51.52 with claws also in a general U shape.
  • the cage 35 comprises a front wall 35a provided with the tapped hole 35b, a bottom 35c, side walls 35d, 35e which connect the front wall to the bottom and openings upper and lower 35f, 35g passage for cables and lug 17 to connect.
  • the screw 34 is secured in translation with the stirrup 41, by example by a pin, without causing it to rotate (see Figure 9).
  • Each stirrup 41,42 comprises a core 43 and two wings 44,45.
  • Soul 43 of the stirrup 41 is applicable against the end of the screw 34 and its wings 44, 45 are guided along the side walls 35d, 35e of the cage.
  • Stirrup soul 43 42 is applied against the bottom 35c of the cage or merged with this bottom (see Figures 5 to 8) and its two wings 44,45 are provided projecting from at the walls 35d, 35e of the cage.
  • the stirrup wings 44,45 have at their free end and towards the inside of the U a heel 46 for retaining the cable at the loosening.
  • the contact parts 51, 52 are identical to each other; they understand each (see FIG. 10) a core 53 applied against the connection tab 17 associated and two wings 54,55 ending in claws 56. While the wings 44, 45 of the stirrups 41 are adjacent to the side walls 35d, 35e of the cage, the wings 54.55 of the contact parts 51.52 are located towards the openings 35f, 35g of the cage; contact parts are placed back to back against the two large opposite faces 17a, 17b of the tab 17 and the stirrups 41.42 penetrate during tightening into the contact parts 51.52 with guiding and nesting their end faces in U 48 against the faces internal wings 54.55.
  • the length of the core 53 of the contact piece is substantially equal to or slightly less than the width of the side walls 35d, 35th from the cage.
  • the upper face 25 of the terminal block has three passages 25a for the tabs connection 17 and, on either side of these passages, reliefs or prepositioning projections 25b each having to cooperate with a recess 57 formed in a wing 54 or 55 of the contact part.
  • the height of the passage is provided slightly higher than that of the relief to allow the contact part to pass without difficulty from its prepositioning state in its application position against the tab 17.
  • the cages 35 are arranged in their respective housings 29 of the base 27, with the stirrups 41,42 and the contact parts 51,52; these are prepositioned by cooperation of one of their recesses 57 with a relief respective 25b of the terminal block, so that it can be applied against the faces 17a, 17b of the legs 17.
  • the cover 28 is fixed to the base 27 to close the terminal block and this can be removably attached to the housing 10 of the device, whose legs 17 penetrate the passages 25a to introduce themselves between parts 51.52.
  • the cable is introduced into the opening 32, so that it is placed between the wings 44, 45 of the stirrup 42, then the screw 34 is turned; this one does descend the stirrup 41 until it stops on the part 51 or the face 17a of the connection lug 17, then by reaction causes the cage to rise towards orifice 35b 35 secured to the bracket 42.
  • the cable is pressed against the contact piece 52 and the claws 56 release the insulating sheath of the cable, which ensures the connection desired between the cable core, the part 52 and the tab 17 against which it is applied; the connection is completed by pressing the cable against the ribs 47; these crush or shear the sheath and can come into contact with the cable core.

Landscapes

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

Abstract

Two grip sections (41) are enclosed in one unit (35) securely gripping two (34) wires. The contact piece (41) is U-shaped. The upper U-section is screw held (34). The bar insert provides simple connection to the electrical apparatus.

Description

La présente invention concerne une borne à vis présentant une cage traversée par une patte de connexion propre à l'appareil, la vis étant associée à un étrier pour serrer un câble entre celui-ci et la patte de connexion. Elle concerne également un bornier à corps isolant associé à un appareil électrique à basse tension et comprenant dans des logements isolants plusieurs telles bornes à vis.The present invention relates to a screw terminal having a crossed cage by a connection tab specific to the device, the screw being associated with a clamp to tighten a cable between it and the connection lug. She also relates to a terminal block with insulating body associated with an electrical appliance at low voltage and comprising in insulating housings several such screw terminals.

Les bornes à vis de ce type sont bien connues. Elles permettent de connecter un câble à l'appareil auquel elles sont associées sans avoir au préalable à dénuder l'extrémité du câble. Il est souhaitable de réaliser de telles bornes de manière simple, avec néanmoins une très bonne qualité de serrage, et, dans certains cas, d'utiliser des dispositifs de raccordement capables de recevoir dans chaque borne un ou deux câbles non dénudés.Screw terminals of this type are well known. They allow you to connect a cable to the device with which they are associated without first having strip the end of the cable. It is desirable to make such terminals in a simple manner, with nevertheless a very good quality of tightening, and, in some cases, using connection devices capable of receive one or two non-stripped cables in each terminal.

L'invention a pour but de faciliter la réalisation et le montage de bornes et borniers répondant à ces desiderata.The object of the invention is to facilitate the production and mounting of terminals and terminal blocks meeting these requirements.

Selon l'invention,

  • dans la cage est disposée une pièce de contact en forme de U à griffes de percement d'isolant, cette pièce présentant une âme appliquée contre la patte de connexion et des ailes terminées par les griffes et situées vers les ouvertures latérales de la cage,
  • l'étrier est une pièce en forme de U qui présente une âme contre laquelle s'applique la vis et des ailes sensiblement guidées.contre des parois latérales de la cage,
  • l'étrier s'emboíte au serrage dans la pièce de contact, de préférence par glissement des faces extrêmes de ses ailes contre les ailes de la pièce de contact.
According to the invention,
  • in the cage is arranged a U-shaped contact part with insulating piercing claws, this part having a core applied against the connection tab and wings terminated by the claws and situated towards the lateral openings of the cage,
  • the stirrup is a U-shaped part which has a core against which the screw is applied and substantially guided wings. against the side walls of the cage,
  • the stirrup fits tightening in the contact piece, preferably by sliding the end faces of its wings against the wings of the contact piece.

De préférence, les ailes de l'étrier présentent à leur extrémité libre et vers l'intérieur du U un talon de retenue pour le câble ; l'âme de l'étrier comprend deux nervures dont la hauteur est sensiblement égale ou supérieure à l'épaisseur de la gaine isolante du câble à serrer, ces nervures étant situées chacune à proximité d'une aile de la pièce de contact.Preferably, the wings of the stirrup have at their free end and towards inside the U a retaining heel for the cable; the stirrup soul understands two ribs whose height is substantially equal to or greater than the thickness of the insulating sheath of the cable to be tightened, these ribs being located each near a wing of the contact piece.

Lorsque la borne est agencée pour recevoir deux câbles en des lieux distincts, on prévoit au fond de la cage un deuxième étrier faisant face au premier étrier, ainsi que, dans la cage et entre les étriers, deux pièces de contact à griffes de percement d'isolant montées dos à dos et applicables contre des faces opposées de la patte de connexion.When the terminal is arranged to receive two cables in separate places, a second stirrup facing the first is provided at the bottom of the cage bracket, as well as two contact pieces in the cage and between the brackets with insulation piercing claws mounted back to back and applicable against opposite sides of the connection tab.

L'invention concerne aussi un bornier de raccordement à corps isolant associé à un appareil électrique à basse tension et comprenant dans des logements isolants plusieurs bornes à vis décrites, le corps isolant du dispositif autorisant le coulissement de la cage et étant muni de passages pour les plages de connexion. De préférence, le bornier est débrochable et présente près du passage de chaque plage de connexion un relief de prépositionnement pour une pièce de contact.The invention also relates to a connection terminal block with associated insulating body. to a low-voltage electrical appliance comprising in housings insulators several screw terminals described, the insulating body of the device authorizing the sliding of the cage and being provided with passages for the connection ranges. Preferably, the terminal block is removable and has near the passage of each connection pad a pre-positioning relief for a contact part.

La description va être faite ci-après d'un mode de réalisation non limitatif de l'invention, en regard des dessins annexés.The description will be made below of a non-limiting embodiment of the invention, with reference to the accompanying drawings.

La figure 1 représente en perspective de dessous un appareil électrique muni du bornier conforme à l'invention, avec arrachement partiel au niveau d'une des bornes.Figure 1 shows in perspective from below an electrical device provided with the terminal block according to the invention, with partial cut-out at the level one of the terminals.

La figure 2 montre de même une partie éclatée du bornier.Figure 2 similarly shows an exploded part of the terminal block.

La figure 3 est une vue de dessous de l'appareil, sans son bornier. Figure 3 is a bottom view of the device, without its terminal block.

La figure 4 est une vue de dessous avec coupe partielle du corps du bornier.Figure 4 is a bottom view with partial section of the terminal block body.

Les figures 5 et 6 sont des vues en élévation d'une borne selon l'invention, respectivement à l'état desserré et à l'état serré.FIGS. 5 and 6 are elevation views of a terminal according to the invention, respectively in the loose state and in the tight state.

Les figures 7 et 8 montrent la borne en coupe selon le plan B de la figure 5, repesctivement dans les états desserré et serré.FIGS. 7 and 8 show the terminal in section along plane B of FIG. 5, respectively in the loose and tight states.

La figure 9 représente un ensemble vis-étrier propre à la borne.Figure 9 shows a screw-clamp assembly specific to the terminal.

La figure 10 montre en perspective une pièce de contact à griffes propre à la borne.Figure 10 shows in perspective a claw contact part specific to the thick headed.

L'appareil représenté sur les figures est un appareil électrique multipolaire à basse tension qui peut avoir une fonction de connexion ou une fonction d'interruption, en étant par exemple dans ce dernier cas du genre contacteur, contacteur-disjoncteur ou disjoncteur. L'appareil comprend un boítier 10 de forme générale parallélépipédique présentant une face avant 11, une face arrière 12 de fixation à un support non indiqué, des faces latérales 13,14 et des faces supérieure et inférieure 15,16. Il est prévu en saillie sur la face inférieure 16 des pattes ou fiches plates 17 qui forment les plages de connexion correspondant aux différents pôles. Les termes avant, arrière, etc.. sont bien sûr choisis en rapport au sens habituel de montage de l'appareil sur son support.The device shown in the figures is a multipolar electrical device with low voltage which can have a connection function or a function of interruption, for example in the latter case of the contactor type, contactor-circuit breaker or circuit breaker. The device includes a case 10 of generally parallelepiped shape having a front face 11, a rear face 12 for attachment to a support not indicated, side faces 13.14 and upper and lower faces 15.16. It is provided projecting from the underside 16 of the tabs or flat plugs 17 which form the ranges of connection corresponding to the different poles. The terms forward, backward, etc. are of course chosen in relation to the usual mounting direction of the device on its support.

Un bornier 20 est fixé contre la face inférieure 16 de l'appareil par des moyens usuels non indiqués. Le bornier présente un corps isolant doté d'une face avant 21, d'une face arrière 22, de faces latérales 23,24 et de faces supérieure et inférieure 25,26 ; il est constitué par une embase 27 et un couvercle 28 rapporté de manière permanente ou amovible par encliquetage ou tous autres moyens sur l'embase. Le bornier 20 comprend trois logements 29 séparés par des cloisons pour autant de bornes 30 de serrage de câbles. Pour chaque borne, on prévoit dans la face inférieure 26 du bornier 20 deux ouvertures 31,32 de passage de câbles, et dans la face avant 21 du bornier 20 une ouverture 33 d'accès pour un outil de manoeuvre. Les bornes indiquées sont doubles, c'est-à-dire destinées à recevoir deux conducteurs, mais elles pourraient également être simples.A terminal block 20 is fixed against the underside 16 of the device by means of usual means not indicated. The terminal block has an insulating body with of a front face 21, of a rear face 22, of lateral sides 23, 24 and of upper and lower faces 25.26; it consists of a base 27 and a cover 28 attached permanently or removable by snap-fastening or any other means on the base. Terminal block 20 includes three slots 29 separated by partitions for as many clamping terminals 30 cables. For each terminal, provision is made in the lower face 26 of the terminal block 20 two openings 31.32 for cable passage, and in the front face 21 of terminal block 20 an opening 33 for access to an operating tool. The indicated terminals are double, that is to say intended to receive two conductors, but they could also be simple.

Chaque borne est du type à vis 34 coopérant avec un trou taraudé prévu dans une cage 35 mobile et guidée dans le logement 29. La borne est conçue pour serrer deux câbles en des emplacements distincts et comporte à cet effet deux étriers 41,42 en forme générale de U et deux pièces de prise de contact 51,52 à griffes également en forme générale de U. La cage 35 comprend une paroi avant 35a munie du trou taraudé 35b, un fond 35c, des parois latérales 35d,35e qui relient la paroi avant au fond et des ouvertures supérieure et inférieure 35f,35g de passage pour les câbles et la patte 17 à connecter. La vis 34 est solidarisée en translation avec l'étrier 41, par exemple par une épingle, sans l'entraíner en rotation (voir figure 9).Each terminal is of the screw type 34 cooperating with a tapped hole provided in a mobile and guided cage 35 in the housing 29. The terminal is designed to clamp two cables in separate locations and includes this effect two stirrups 41.42 in general U shape and two grip pieces contact 51.52 with claws also in a general U shape. The cage 35 comprises a front wall 35a provided with the tapped hole 35b, a bottom 35c, side walls 35d, 35e which connect the front wall to the bottom and openings upper and lower 35f, 35g passage for cables and lug 17 to connect. The screw 34 is secured in translation with the stirrup 41, by example by a pin, without causing it to rotate (see Figure 9).

Chaque étrier 41,42 comprend une âme 43 et deux ailes 44,45. L'âme 43 de l'étrier 41 est applicable contre l'extrémité de la vis 34 et ses ailes 44,45 sont guidées le long des parois latérales 35d,35e de la cage. L'âme 43 de l'étrier 42 est appliquée contre le fond 35c de la cage ou confondue avec ce fond (voir figures 5 à 8) et ses deux ailes 44,45 sont prévues en saillie par rapport aux parois 35d,35e de la cage. Les ailes 44,45 des étriers présentent à leur extrémité libre et vers l'intérieur du U un talon 46 de retenue du câble au desserrage. L'âme 43 des étriers porte vers l'intérieur du U deux nervures 47 dont la hauteur est sensiblement égale ou supérieure à l'épaisseur de la gaine isolante du câble C à serrer, ces nervures étant situées chacune à proximité, voire directement au contact, d'une aile 54,55 de la pièce de contact 51,52. Each stirrup 41,42 comprises a core 43 and two wings 44,45. Soul 43 of the stirrup 41 is applicable against the end of the screw 34 and its wings 44, 45 are guided along the side walls 35d, 35e of the cage. Stirrup soul 43 42 is applied against the bottom 35c of the cage or merged with this bottom (see Figures 5 to 8) and its two wings 44,45 are provided projecting from at the walls 35d, 35e of the cage. The stirrup wings 44,45 have at their free end and towards the inside of the U a heel 46 for retaining the cable at the loosening. The core 43 of the stirrups carries inwardly of the U two ribs 47 whose height is substantially equal to or greater than the thickness of the insulating sheath of cable C to be tightened, these ribs being each located proximity, or even directly in contact, of a wing 54.55 of the contact part 51.52.

Les pièces de contact 51,52 sont identiques entre elles ; elles comprennent chacune (voir figure 10) une âme 53 appliquée contre la patte de connexion 17 associée et deux ailes 54,55 se terminant par des griffes 56. Alors que les ailes 44,45 des étriers 41 sont adjacentes aux parois latérales 35d,35e de la cage, les ailes 54,55 des pièces de contact 51,52 sont situées vers les ouvertures 35f,35g de la cage; les pièces de contact sont placées dos à dos contre les deux grandes faces opposées 17a,17b de la patte 17 et les étriers 41,42 pénètrent en cours de serrage dans les pièces de contact 51,52 avec guidage et emboítement de leurs faces extrêmes en U 48 contre les faces internes des ailes 54,55. La longueur de l'âme 53 de la pièce de contact est sensiblement égale ou légèrement inférieure à la largeur des parois latérales 35d,35e de la cage.The contact parts 51, 52 are identical to each other; they understand each (see FIG. 10) a core 53 applied against the connection tab 17 associated and two wings 54,55 ending in claws 56. While the wings 44, 45 of the stirrups 41 are adjacent to the side walls 35d, 35e of the cage, the wings 54.55 of the contact parts 51.52 are located towards the openings 35f, 35g of the cage; contact parts are placed back to back against the two large opposite faces 17a, 17b of the tab 17 and the stirrups 41.42 penetrate during tightening into the contact parts 51.52 with guiding and nesting their end faces in U 48 against the faces internal wings 54.55. The length of the core 53 of the contact piece is substantially equal to or slightly less than the width of the side walls 35d, 35th from the cage.

La face supérieure 25 du bornier comporte trois passages 25a pour les pattes de connexion 17 et, de part et d'autre de ces passages, des reliefs ou saillies de prépositionnement 25b devant coopérer chacun avec un évidement 57 ménagé dans une aile 54 ou 55 de la pièce de contact. La hauteur du passage est prévue légèrement supérieure à celle du relief pour permettre à la pièce de contact de passer sans difficulté de son état de prépositionnement à sa position d'application contre la patte 17.The upper face 25 of the terminal block has three passages 25a for the tabs connection 17 and, on either side of these passages, reliefs or prepositioning projections 25b each having to cooperate with a recess 57 formed in a wing 54 or 55 of the contact part. The height of the passage is provided slightly higher than that of the relief to allow the contact part to pass without difficulty from its prepositioning state in its application position against the tab 17.

Le bornier décrit se monte et fonctionne de la manière suivante.The terminal block described is assembled and operates as follows.

Les cages 35 sont disposées dans leurs logements respectifs 29 de l'embase 27, avec les étriers 41,42 et les pièces de contact 51,52 ; celles-ci sont prépositionnées par coopération d'un de leurs évidements 57 avec un relief respectif 25b du bornier, de manière à pouvoir s'appliquer contre les faces 17a,17b des pattes 17. Le couvercle 28 est fixé à l'embase 27 pour fermer le bornier et celui-ci peut être fixé de manière amovible au boítier 10 de l'appareil, dont les pattes 17 pénètrent dans les passages 25a pour s'introduire entre les pièces 51,52. The cages 35 are arranged in their respective housings 29 of the base 27, with the stirrups 41,42 and the contact parts 51,52; these are prepositioned by cooperation of one of their recesses 57 with a relief respective 25b of the terminal block, so that it can be applied against the faces 17a, 17b of the legs 17. The cover 28 is fixed to the base 27 to close the terminal block and this can be removably attached to the housing 10 of the device, whose legs 17 penetrate the passages 25a to introduce themselves between parts 51.52.

Pour serrer un câble C dans l'une des bornes, par exemple au niveau de l'étrier 42, on introduit le câble dans l'ouverture 32, de sorte qu'il est placé entre les ailes 44,45 de l'étrier 42, puis on fait tourner la vis 34 ; celle-ci fait descendre l'étrier 41 jusqu'à son arrêt sur la pièce 51 ou la face 17a de la patte de connexion 17, puis par réaction fait monter vers l'orifice 35b la cage 35 solidaire de l'étrier 42. Le câble est pressé contre la pièce de contact 52 et les griffes 56 dégagent la gaine isolante du câble, ce qui assure la connexion souhaitée entre l'âme du câble, la pièce 52 et la patte 17 contre laquelle elle est appliquée ; la connexion est complétée par le pressage du câble contre les nervures 47 ; celles-ci écrasent ou cisaillent la gaine et peuvent venir jusqu'au contact de l'âme du câble.To tighten a cable C in one of the terminals, for example at the level of the bracket 42, the cable is introduced into the opening 32, so that it is placed between the wings 44, 45 of the stirrup 42, then the screw 34 is turned; this one does descend the stirrup 41 until it stops on the part 51 or the face 17a of the connection lug 17, then by reaction causes the cage to rise towards orifice 35b 35 secured to the bracket 42. The cable is pressed against the contact piece 52 and the claws 56 release the insulating sheath of the cable, which ensures the connection desired between the cable core, the part 52 and the tab 17 against which it is applied; the connection is completed by pressing the cable against the ribs 47; these crush or shear the sheath and can come into contact with the cable core.

Pour serrer deux câbles C simultanément dans la même borne, on les introduit dans les ouvertures respectives 31,32 du bornier et la rotation de la vis provoque d'abord la descente de l'étrier 41 et la connexion du câble introduit dans l'ouverture 31, puis la montée de l'étrier 42 et la connexion du câble introduit dans l'ouverture 32.To tighten two cables C simultaneously in the same terminal, we introduce them in the respective openings 31.32 of the terminal block and the rotation of the screw first causes the lowering of the stirrup 41 and the connection of the cable introduced in the opening 31, then the rise of the stirrup 42 and the connection of the cable introduced into opening 32.

Lorsqu'on veut desserrer la borne, on dévisse la vis 34, de sorte que les étriers 41,42 se dégagent des pièces de contact 51,52 en emmenant les câbles grâce à l'emprise assurée sur ceux-ci par les talons 46 et les nervures 47.When you want to loosen the terminal, you unscrew the screw 34, so that the stirrups 41,42 are released from the contact parts 51,52 by taking the cables thanks to the grip provided on them by the heels 46 and the ribs 47.

Claims (6)

Borne présentant une vis (34) et une cage (35) traversée par une patte de connexion (17) et munie d'un trou taraudé pour coopérer avec la vis, laquelle est appliquée sur un étrier (41,42) de manière à pouvoir serrer un câble entre celui-ci et la patte de connexion, tandis que dans la cage (35) est disposée une pièce de contact (51,52) , cette pièce présentant une âme (53) appliquée contre la patte de connexion,
caractérisée par le fait que : la pièce de contact (51,52) est en forme de U à griffes (56) de percement d'isolant et présente des ailes (54,55) terminées par les griffes (56) et situées vers les ouvertures latérales (35f,35g) de la cage, l'étrier (41) est une pièce en forme de U qui présente une âme (43) contre laquelle s'applique la vis (34) et des ailes (44,45) sensiblement guidées contre des parois latérales (35d,35e) de la cage (35), l'étrier (41) s'emboíte au serrage dans la pièce de contact(51,52). Terminal having a screw (34) and a cage (35) traversed by a connection tab (17) and provided with a tapped hole to cooperate with the screw, which is applied to a bracket (41,42) so as to be able clamp a cable between it and the connection lug, while in the cage (35) is arranged a contact piece (51,52), this piece having a core (53) applied against the connection lug,
characterized by the fact that: the contact piece (51,52) is U-shaped with claws (56) for piercing insulation and has wings (54,55) terminated by the claws (56) and situated towards the lateral openings (35f, 35g ) from the cage, the stirrup (41) is a U-shaped piece which has a core (43) against which the screw (34) is applied and wings (44,45) substantially guided against side walls (35d, 35e) of the cage (35), the stirrup (41) fits tightly in the contact piece (51,52). Borne selon la revendication 1, caractérisée par le fait que : les ailes (44,45) de l'étrier (41,42) présentent à leur extrémité libre et vers l'intérieur du U un talon (46) de retenue pour le câble. Terminal according to claim 1, characterized in that: the wings (44,45) of the stirrup (41,42) have at their free end and towards the inside of the U a heel (46) for retaining the cable. Borne selon la revendication 1, caractérisée par le fait que : l'âme (43) de l'étrier (41,42) comprend deux nervures (47) dont la hauteur est sensiblement égale ou supérieure à l'épaisseur de la gaine isolante du câble à serrer, ces nervures étant situées chacune à proximité d'une aile (54,55) de la pièce de contact (51,52). Terminal according to claim 1, characterized in that: the core (43) of the stirrup (41,42) comprises two ribs (47) the height of which is substantially equal to or greater than the thickness of the insulating sheath of the cable to be clamped, these ribs being each located close to 'a wing (54,55) of the contact piece (51,52). Borne selon la revendication 1, caractérisée par le fait que : au fond de la cage (35) est prévu un deuxième étrier (42) faisant face au premier étrier, et dans la cage (35) sont disposées entre les étriers (41,42) deux pièces de contact (51,52) à griffes (56) de percement d'isolant montées dos à dos et applicables contre des faces opposées (17a,17b) de la patte de connexion (17). Terminal according to claim 1, characterized in that: at the bottom of the cage (35) is provided a second stirrup (42) facing the first stirrup, and in the cage (35) are arranged between the stirrups (41,42) two contact pieces (51,52) with claws (56) for piercing insulation mounted back to back and applicable against opposite faces (17a, 17b) of the connection tab (17). Bornier de raccordement à corps isolant associé à un appareil électrique à basse tension et comprenant dans des logements isolants plusieurs bornes à vis conformes à l'une des revendications 1 à 4, le corps isolant du bornier (20) autorisant le coulissement de la cage (35) et étant muni de passages (25a) pour les plages de connexion (17).Connection block with insulating body associated with an electrical device at low voltage and comprising in several insulating housings screw according to one of claims 1 to 4, the insulating body of the terminal block (20) authorizing the sliding of the cage (35) and being provided with passages (25a) for the connection pads (17). Bornier de raccordement selon la revendication 5, caractérisé par le fait qu'il comprend près du passage (25a) de chaque plage de connexion (17) un relief de prépositionnement (25b) pour une pièce de contact (51,52).Connection terminal block according to claim 5, characterized in that it includes near the passage (25a) of each connection pad (17) a pre-positioning relief (25b) for a contact piece (51,52).
EP98401774A 1997-08-07 1998-07-13 Screw clamp and terminal block for an electrical apparatus Expired - Lifetime EP0896387B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9710251A FR2767228B1 (en) 1997-08-07 1997-08-07 SCREW TERMINAL AND TERMINAL FOR ELECTRICAL APPARATUS
FR9710251 1997-08-07

Publications (2)

Publication Number Publication Date
EP0896387A1 true EP0896387A1 (en) 1999-02-10
EP0896387B1 EP0896387B1 (en) 2000-12-27

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ID=9510216

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98401774A Expired - Lifetime EP0896387B1 (en) 1997-08-07 1998-07-13 Screw clamp and terminal block for an electrical apparatus

Country Status (3)

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EP (1) EP0896387B1 (en)
DE (1) DE69800453T2 (en)
FR (1) FR2767228B1 (en)

Cited By (5)

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Publication number Priority date Publication date Assignee Title
GB2355863A (en) * 1999-10-27 2001-05-02 Philex Plc Electrical earth connector
WO2001080369A1 (en) * 2000-04-13 2001-10-25 Siemens Aktiengesellschaft Terminal for series-integrated devices, especially for circuit-breakers
US7281959B2 (en) 2003-10-16 2007-10-16 Moeller Gmbh Contactor equipped with box terminals
EP2662931A1 (en) * 2012-05-11 2013-11-13 Societe Industrielle de Construction d'Appareils et de Materiel Electriques Connection tip for insulated power-supply cable and method for manufacturing said connection tip
CN104362445A (en) * 2014-11-26 2015-02-18 永固集团股份有限公司 Vertical splicing and splitting wire clamp

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10131975A1 (en) * 2001-07-02 2003-01-30 Siemens Ag terminal
DE10236397A1 (en) * 2002-08-08 2004-02-26 Wieland Electric Gmbh Electrical terminal for switchgear, has securing device for locking position of contact body when contact element is connected to switchgear
FR2933242B1 (en) 2008-06-30 2010-08-27 Schneider Electric Ind Sas ELECTRICAL SCREW TERMINAL, TERMINAL COMPRISING SUCH AN ELECTRICAL TERMINAL AND ELECTRICAL DEVICE COMPRISING SUCH A TERMINAL TERMINAL

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FR2503939A1 (en) * 1981-04-14 1982-10-15 Alsthom Cgee Connector or terminal for insulated electric cable - has screw tightening insulation piercing harness inside insulating housing
EP0356329A1 (en) * 1988-08-22 1990-02-28 S I C A M E Societe Industrielle De Construction D'appareils Et De Materiel Electrique Tapping assembly for a secondary cable to be connected to a main uninterrupted cable
DE4111054A1 (en) * 1990-04-06 1991-10-10 Yazaki Corp CONNECTING PLUG
WO1995018473A1 (en) * 1993-12-27 1995-07-06 Oy Sekko Ab Rail coupling for connecting a ground cable to a safety strip
EP0769826A1 (en) * 1995-10-18 1997-04-23 Schneider Electric Sa Connecting block of electrical conductors to an electrical apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503939A1 (en) * 1981-04-14 1982-10-15 Alsthom Cgee Connector or terminal for insulated electric cable - has screw tightening insulation piercing harness inside insulating housing
EP0356329A1 (en) * 1988-08-22 1990-02-28 S I C A M E Societe Industrielle De Construction D'appareils Et De Materiel Electrique Tapping assembly for a secondary cable to be connected to a main uninterrupted cable
DE4111054A1 (en) * 1990-04-06 1991-10-10 Yazaki Corp CONNECTING PLUG
WO1995018473A1 (en) * 1993-12-27 1995-07-06 Oy Sekko Ab Rail coupling for connecting a ground cable to a safety strip
EP0769826A1 (en) * 1995-10-18 1997-04-23 Schneider Electric Sa Connecting block of electrical conductors to an electrical apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2355863A (en) * 1999-10-27 2001-05-02 Philex Plc Electrical earth connector
GB2355863B (en) * 1999-10-27 2001-09-12 Philex Plc Electrical earth connector
WO2001080369A1 (en) * 2000-04-13 2001-10-25 Siemens Aktiengesellschaft Terminal for series-integrated devices, especially for circuit-breakers
US7281959B2 (en) 2003-10-16 2007-10-16 Moeller Gmbh Contactor equipped with box terminals
EP2662931A1 (en) * 2012-05-11 2013-11-13 Societe Industrielle de Construction d'Appareils et de Materiel Electriques Connection tip for insulated power-supply cable and method for manufacturing said connection tip
FR2990570A1 (en) * 2012-05-11 2013-11-15 App Mat Elect Const CONNECTION BIT FOR ISOLATED ELECTRICAL POWER CABLE AND METHOD FOR MANUFACTURING THE CONNECTION TIP
CN104362445A (en) * 2014-11-26 2015-02-18 永固集团股份有限公司 Vertical splicing and splitting wire clamp

Also Published As

Publication number Publication date
DE69800453T2 (en) 2001-04-19
FR2767228A1 (en) 1999-02-12
FR2767228B1 (en) 2004-07-16
DE69800453D1 (en) 2001-02-01
EP0896387B1 (en) 2000-12-27

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