EP0684662A1 - Insulation displacement connector - Google Patents

Insulation displacement connector Download PDF

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Publication number
EP0684662A1
EP0684662A1 EP95410044A EP95410044A EP0684662A1 EP 0684662 A1 EP0684662 A1 EP 0684662A1 EP 95410044 A EP95410044 A EP 95410044A EP 95410044 A EP95410044 A EP 95410044A EP 0684662 A1 EP0684662 A1 EP 0684662A1
Authority
EP
European Patent Office
Prior art keywords
base
cover
connection
connector according
insulation displacement
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
EP95410044A
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German (de)
French (fr)
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EP0684662B1 (en
Inventor
Christophe Grumel
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 SE
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Schneider Electric SE
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Publication date
Application filed by Schneider Electric SE filed Critical Schneider Electric SE
Publication of EP0684662A1 publication Critical patent/EP0684662A1/en
Application granted granted Critical
Publication of EP0684662B1 publication Critical patent/EP0684662B1/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
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/2445—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives
    • H01R4/245—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the additional means having two or more slotted flat portions
    • H01R4/2454—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the additional means having two or more slotted flat portions forming a U-shape with slotted branches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/65—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal
    • H01R12/67—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal insulation penetrating terminals
    • H01R12/675—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal insulation penetrating terminals with contacts having at least a slotted plate for penetration of cable insulation, e.g. insulation displacement contacts for round conductor flat cables

Definitions

  • the present invention relates to a insulation displacement connector suitable for a flat cable of the type comprising several insulated electrical wires or several bare conductors, embedded in an insulating sheath, and comprising a base, a cover arranged to be adapted on said base and connection claws, the number of which is at least equal to the number of insulated electrical wires or bare conductors, these connection claws being mounted inside a space defined by the base and the cover and arranged to accommodate said flat cable, and provided with '' at least one insulation displacement contact member.
  • the document EP-A-470.887 describes a branch connector for flat cable, in which the insulation displacement contact has an H-shaped structure secured to an intermediate support. The end of each branch is cut at a bevel to form a flared entry. The mounting of such a connector is complicated.
  • connectors of the insulation displacement type which are usually used to ensure simple and rapid electrical coupling of individual electrical wires or pairs of wires, used for example in telephone installations, with terminals. connection.
  • the thickness of the insulating layer surrounding the conductor is small and the conductor itself is fragile.
  • the contact members housed inside the known connectors have the function of nicking the insulation without injuring the conductor to ensure an efficient and reliable electrical connection.
  • These connectors are not suitable for flat wires and can only be used for individual wires and not for layers of wires embedded in a flat insulating tape.
  • the present invention proposes to overcome this drawback and to provide a connector making it possible to efficiently and reliably connect cables for transporting electrical energy comprising several electrical wires arranged in a sheet.
  • the base and the cover are respectively provided with grooves respectively separated by longitudinal bulges and longitudinal ribs, these grooves being arranged to cooperate in pairs and housing one of said electrical wires, and the longitudinal bulges and the longitudinal ribs being arranged to cooperate and bear on connecting bridges separating the wires of the flat cable.
  • the insulation displacement connector 10 essentially consists of a lower part or base 11 and an upper part or cover 12 arranged to be fitted so as to enclose a flat cable 13.
  • This cable consists, in the nonlimiting example shown, of three insulated wires 13a, 13b and 13c coated in a layer of insulating synthetic material which surrounds the three wires and forms two connecting bridges 14.
  • the base 11 of the connector 10 has a profile suitable for receiving the cable 13. For this purpose, it has three grooves 15 which define receiving cells of the three wires 13a, 13b and 13c. These grooves 15 are separated two by two by two longitudinal bulges 16 whose summits serve as support for the connecting bridges 14 of the cable 13.
  • the cover has a similar geometry and has three grooves 17 intended to receive the wires 13a, 13b and 13c of the cable 13, and more specifically the upper half of these wires. The grooves are separated by longitudinal ribs 18 which bear on the bridges 14.
  • connection claws 19 which are arranged to ensure electrical coupling of the conductors 20a, 20b and 20c of the corresponding wires 13a, 13b and 13c with terminals integral with this connector.
  • These claws are mounted inside the cover 12, preferably by snap-fastening in housings provided for this purpose and produced by molding.
  • the base 11 has two raised lateral edges 21 each provided with at least one central notch 22. These two notches have a profile complementary to that of two lateral extensions 23 of the cover 12. When putting in place place the cover on the base, the lateral extensions 23 engage in the central notches 22.
  • the raised lateral edges 21 of the base 11 have the form of gantries 24 in U whose upper segments 25 are arranged to cooperate with protrusions 26 of the cover, having a triangular section to ensure a snap-in during the positioning of the cover on the base and then a locking in position of this cover.
  • the protrusions 26 have an inclined ramp 26a which constitutes an attack flank and which cooperates with the inclined edge 25a of the upper segments 25 of the gantries 24.
  • grooves 15 is not limited to three, but can extend to any number, in particular to five, when the cable is intended for convey three-phase electric current and has five coated wires.
  • FIG. 5 shows the cover 12 fitted with three double connecting claws.
  • One of these claws is represented by the perspective view of FIG. 6.
  • These three claws which correspond to the three wires 13a, 13b and 13c of the cable 13, are mounted respectively in the three grooves 17 and more particularly in delimited niches 30 inside these gorges.
  • These niches 30 are delimited by the longitudinal ribs 18, the lateral edges 31 of the cover 12 and transverse partitions 32.
  • the claws are forcibly engaged in these niches whose walls are all made in one piece by molding during the manufacture of the lid.
  • Each claw 19 has a base 33 which carries two insulation displacement contact members 34.
  • the base 33 and the two contact members are made of a metal part by bending stamping.
  • Each insulation displacement contact member 34 comprises two parallel branches 35 and 36 spaced from one another by an average distance which is equal to or preferably slightly less than the diameter of the conductors 20a, 20b and 20c of the wires 13a, 13b and 13c.
  • the contact members 34 are integral with two opposite sides of the base 33 and have an orientation substantially perpendicular to the plane of the base 33.
  • the profile of the insulation displacement contact members 34 appears in FIG. 7.
  • the opposite branches 35 and 36 have at their free end a point 37, 38 which allows penetration of said members into the thickness of the insulation which surrounds the conductors of the wire. .
  • This point is connected to a recessed section 39, 40 which defines with the corresponding section of the other branch a slightly enlarged area 41 of the slot defined between the two branches 35 and 36.
  • FIG. 8 and 9 illustrate the function of the contact members 34 in an initial phase and a final phase of connector use.
  • the phase represented by FIG. 8 it is assumed that the external insulation of the cable has already been perforated by the tips 37 and 38 which have also penetrated inside the insulating layer surrounding the conductor 20a of the wire 13a. The inner edges of these points come into contact with the conductor, which has the effect of slightly separating the two branches 35 and 36 from the contact member 34 when the operator continues to push it in, that is to say say to engage the cover carrying this contact member on the base of the connector.
  • FIG. 9 shows that this relative movement of the conductor 20a and of the contact member 34 has the effect of slightly deforming this conductor which is finally positioned in the enlarged zone 41, defined with reference to FIG. 7. Thanks to this deformation and with the existence of the enlarged zone, the electrical coupling between the contact member and the conductor is carried out satisfactorily and without this being necessary to carry out a preliminary stripping.
  • connection claws are advantageously made of an electrically conductive material, such as for example a copper-beryllium alloy which achieves a good compromise between electrical conductivity, elasticity and creep resistance.
  • connection terminals can be fitted to the connector. They can be of the screw, solder, crimp, etc. type.
  • This connector is that it can be placed anywhere on the cable and that it allows electrical connection to this cable in an efficient, fast and safe manner, without direct intervention on the cable. .

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  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The connector (10) has a base section (11) with a number of curved receptacles (15) separated by ribs (16). The flat cable has a number of cables (13a, 13b) connected together by thin flat sections. The cables lie in the receptacle area. The lid (12) has a number of connectors (19) of fork shape with flexible end prongs, attached to the top of the lid. Each prong slices through the outer of the multiple cable section as the lid closes, making cable connection with the inners (20a, 20b, 20c). Outer stops and a matching upper receptacle (17) with separation grooves (18) hold the cable firmly in place. <IMAGE>

Description

La présente invention concerne un connecteur autodénudant adapté à un câble plat du type comprenant plusieurs fils électriques isolés ou plusieurs conducteurs nus, noyés dans une gaine isolante, et comportant un socle, un couvercle agencé pour être adapté sur ledit socle et des griffes de raccordement, dont le nombre est au moins égal au nombre de fils électriques isolés ou de conducteurs nus, ces griffes de raccordement étant montées à l'intérieur d'un espace défini par le socle et le couvercle et agencé pour loger ledit câble plat, et pourvue d'au moins un organe de contact autodénudant.The present invention relates to a insulation displacement connector suitable for a flat cable of the type comprising several insulated electrical wires or several bare conductors, embedded in an insulating sheath, and comprising a base, a cover arranged to be adapted on said base and connection claws, the number of which is at least equal to the number of insulated electrical wires or bare conductors, these connection claws being mounted inside a space defined by the base and the cover and arranged to accommodate said flat cable, and provided with '' at least one insulation displacement contact member.

Le document EP-A-470.887 décrit un connecteur de dérivation pour câble plat, dans lequel le contact autodénudant présente une structure en H solidaire d'un support intermédiaire. L'extrémité de chaque branche est taillée en biseau pour former une entrée évasée. Le montage d'un tel connecteur est compliqué.The document EP-A-470.887 describes a branch connector for flat cable, in which the insulation displacement contact has an H-shaped structure secured to an intermediate support. The end of each branch is cut at a bevel to form a flared entry. The mounting of such a connector is complicated.

On connaît d'autre part de nombreux connecteurs du type autodénudant qui sont habituellement utilisés pour assurer d'une manière simple et rapide un couplage électrique de fils électriques individuels ou de paires de fils, utilisés par exemple dans les installations téléphoniques, avec des bornes de raccordement. Dans ces applications, l'épaisseur de la couche isolante qui entoure le conducteur est faible et le conducteur lui-même est fragile. Les organes de contact logés à l'intérieur des connecteurs connus ont pour fonction d'entailler l'isolant sans blesser le conducteur pour assurer une connexion électrique efficace et fiable. Ces connecteurs ne sont pas adaptés à des fils plats et ne peuvent être utilisés que pour des fils individuels et non pour des nappes de fils noyés dans un ruban isolant plat.On the other hand, numerous connectors of the insulation displacement type are known which are usually used to ensure simple and rapid electrical coupling of individual electrical wires or pairs of wires, used for example in telephone installations, with terminals. connection. In these applications, the thickness of the insulating layer surrounding the conductor is small and the conductor itself is fragile. The contact members housed inside the known connectors have the function of nicking the insulation without injuring the conductor to ensure an efficient and reliable electrical connection. These connectors are not suitable for flat wires and can only be used for individual wires and not for layers of wires embedded in a flat insulating tape.

La présente invention se propose de pallier à cet inconvénient et de réaliser un connecteur permettant de raccorder efficacement et de manière fiable des câbles de transport d'énergie électrique comportant plusieurs fils électriques disposés en nappe.The present invention proposes to overcome this drawback and to provide a connector making it possible to efficiently and reliably connect cables for transporting electrical energy comprising several electrical wires arranged in a sheet.

Ce but est atteint par le connecteur selon l'invention, caractérisé en ce que :

  • les griffes de raccordement sont montées à l'intérieur du couvercle, chaque griffe de raccordement comportant une base équipée de deux organes de contact autodénudants comprenant chacun deux branches parallèles et écartées l'une de l'autre d'une distance égale ou légèrement inférieure au diamètre du conducteur du fil électrique correspondant,
  • chaque branche de l'organe de contact autodénudant est pourvue d'une pointe agencée pour perforer l'isolant entourant le conducteur, et une section de retrait qui définit avec la section correspondante de l'autre branche une zone élargie agencée pour recevoir le conducteur d'un fil électrique et dans laquelle se fait le couplage électrique entre ce conducteur et la griffe de raccordement correspondante.
This object is achieved by the connector according to the invention, characterized in that:
  • the connection claws are mounted inside the cover, each connection claw comprising a base fitted with two insulation displacement contact members each comprising two parallel branches and spaced from each other by a distance equal to or slightly less than the diameter of the conductor of the corresponding electric wire,
  • each branch of the insulation displacement contact member is provided with a point arranged to perforate the insulation surrounding the conductor, and a withdrawal section which defines with the corresponding section of the other branch an enlarged area arranged to receive the conductor of an electric wire and in which the electrical coupling takes place between this conductor and the corresponding connection shoe.

Selon un mode de réalisation particulièrement avantageux, le socle et le couvercle sont respectivement pourvus de gorges respectivement séparées par des renflements longitudinaux et des nervures longitudinales, ces gorges étant agencées pour coopérer deux à deux et loger un desdits fils électriques, et les renflements longitudinaux et les nervures longitudinales étant agencés pour coopérer et prendre appui sur des ponts de liaison séparant les fils du câble plat.According to a particularly advantageous embodiment, the base and the cover are respectively provided with grooves respectively separated by longitudinal bulges and longitudinal ribs, these grooves being arranged to cooperate in pairs and housing one of said electrical wires, and the longitudinal bulges and the longitudinal ribs being arranged to cooperate and bear on connecting bridges separating the wires of the flat cable.

La présente invention sera mieux comprise en référence à la description d'un mode de réalisation préféré donné à titre d'exemple non limitatif et aux dessins annexés dans lesquels:

  • la figure 1 représente une vue en perspective d'un connecteur autodénudant pour câble plat selon l'invention,
  • la figure 2 est une vue frontale du connecteur de la figure 1,
  • la figure 3 est une vue en perspective éclatée du connecteur des figures 1 et 2,
  • la figure 4 est une vue frontale du connecteur des figures précédentes, avant l'assemblage définitif de sa partie inférieure et de sa partie supérieure,
  • la figure 5 représente une vue en perspective illustrant l'intérieur de la partie supérieure du connecteur des figures précédentes,
  • la figure 6 représente une vue en perspective d'une griffe de raccordement du connecteur des figures précédentes,
  • la figure 7 représente une vue frontale de la griffe de raccordement de la figure 6, et
  • les figures 8 et 9 illustrent deux phases successives de mise en place et du raccordement d'un câble plat à l'intérieur d'une griffe de raccordement d'un connecteur selon l'invention.
The present invention will be better understood with reference to the description of a preferred embodiment given by way of nonlimiting example and to the accompanying drawings in which:
  • FIG. 1 represents a perspective view of a insulation displacement connector for flat cable according to the invention,
  • FIG. 2 is a front view of the connector of FIG. 1,
  • FIG. 3 is an exploded perspective view of the connector of FIGS. 1 and 2,
  • FIG. 4 is a front view of the connector of the preceding figures, before the final assembly of its lower part and of its upper part,
  • FIG. 5 represents a perspective view illustrating the interior of the upper part of the connector of the preceding figures,
  • FIG. 6 represents a perspective view of a connection claw of the connector of the preceding figures,
  • FIG. 7 represents a front view of the connection shoe of FIG. 6, and
  • Figures 8 and 9 illustrate two successive phases of establishment and connection of a flat cable inside a connection claw of a connector according to the invention.

En référence aux figures et notamment aux figures 1 à 5, le connecteur autodénudant 10 se compose essentiellement d'une partie inférieure ou socle 11 et d'une partie supérieure ou couvercle 12 agencées pour être emboîtées de manière à enserrer un câble plat 13. Ce câble se compose, dans l'exemple non limitatif représenté, de trois fils isolés 13a, 13b et 13c enrobés dans une couche de matière synthétique isolante qui entoure les trois fils et forme deux ponts de liaison 14. Le socle 11 du connecteur 10 présente un profil approprié pour recevoir le câble 13. A cet effet, il comporte trois gorges 15 qui définissent des alvéoles récepteurs des trois fils 13a, 13b et 13c. Ces gorges 15 sont séparées deux à deux par deux renflements longitudinaux 16 dont les sommets servent d'appui aux ponts de liaison 14 du câble 13. Le couvercle présente une géométrie similaire et comporte trois gorges 17 destinées à recevoir les fils 13a, 13b et 13c du câble 13, et plus spécifiquement la moitié supérieure de ces fils. Les gorges sont séparées par des nervures longitudinales 18 qui prennent appui sur les ponts 14.With reference to the figures and in particular to Figures 1 to 5, the insulation displacement connector 10 essentially consists of a lower part or base 11 and an upper part or cover 12 arranged to be fitted so as to enclose a flat cable 13. This cable consists, in the nonlimiting example shown, of three insulated wires 13a, 13b and 13c coated in a layer of insulating synthetic material which surrounds the three wires and forms two connecting bridges 14. The base 11 of the connector 10 has a profile suitable for receiving the cable 13. For this purpose, it has three grooves 15 which define receiving cells of the three wires 13a, 13b and 13c. These grooves 15 are separated two by two by two longitudinal bulges 16 whose summits serve as support for the connecting bridges 14 of the cable 13. The cover has a similar geometry and has three grooves 17 intended to receive the wires 13a, 13b and 13c of the cable 13, and more specifically the upper half of these wires. The grooves are separated by longitudinal ribs 18 which bear on the bridges 14.

Comme le montre la figure 2, le connecteur est équipé de griffes de raccordement 19 qui sont agencées pour assurer un couplage électrique des conducteurs 20a, 20b et 20c des fils correspondants 13a, 13b et 13c avec des bornes solidaires de ce connecteur. Ces griffes sont montées à l'intérieur du couvercle 12, de préférence par encliquetage dans des logements ménagés à cet effet et réalisés par moulage.As shown in FIG. 2, the connector is equipped with connection claws 19 which are arranged to ensure electrical coupling of the conductors 20a, 20b and 20c of the corresponding wires 13a, 13b and 13c with terminals integral with this connector. These claws are mounted inside the cover 12, preferably by snap-fastening in housings provided for this purpose and produced by molding.

Comme le montre la figure 3, le socle 11 a deux bords latéraux relevés 21 pourvus chacun d'au moins une entaille centrale 22. Ces deux entailles ont un profil complémentaire à celui de deux prolongements latéraux 23 du couvercle 12. Lors de la mise en place du couvercle sur le socle, les prolongements latéraux 23 s'engagent dans les entailles centrales 22. En outre, les bords latéraux relevés 21 du socle 11 présentent la forme de portiques 24 en U dont les segments supérieurs 25 sont agencés pour coopérer avec des protubérances 26 du couvercle, ayant une section triangulaire pour assurer un encliquetage lors de la mise en place du couvercle sur le socle puis un blocage en position de ce couvercle. Pour permettre cet encliquetage, les protubérances 26 présentent une rampe inclinée 26a qui constitue un flanc d'attaque et qui coopère avec le bord incliné 25a des segments supérieurs 25 des portiques 24.As shown in FIG. 3, the base 11 has two raised lateral edges 21 each provided with at least one central notch 22. These two notches have a profile complementary to that of two lateral extensions 23 of the cover 12. When putting in place place the cover on the base, the lateral extensions 23 engage in the central notches 22. In addition, the raised lateral edges 21 of the base 11 have the form of gantries 24 in U whose upper segments 25 are arranged to cooperate with protrusions 26 of the cover, having a triangular section to ensure a snap-in during the positioning of the cover on the base and then a locking in position of this cover. To allow this snap-fastening, the protrusions 26 have an inclined ramp 26a which constitutes an attack flank and which cooperates with the inclined edge 25a of the upper segments 25 of the gantries 24.

On notera que pour assurer la mise en place d'un connecteur 10 en un endroit sélectionné du câble 13, on positionne tout d'abord le socle 11 sous le câble de telle manière que les fils pénètrent dans les alvéoles récepteurs définis par les trois gorges 15, puis on emboîte le couvercle 12 sur le socle. Cette opération assure le couplage électrique automatique des conducteurs des fils du câble d'une manière qui sera décrite en détail ci-dessous.Note that to ensure the establishment of a connector 10 in a selected location of the cable 13, firstly position the base 11 under the cable so that the wires penetrate into the receiving cells defined by the three grooves 15, then the cover 12 is fitted onto the base. This operation provides automatic electrical coupling of the conductors of the cable wires in a manner which will be described in detail below.

Il est à noter également que le nombre des gorges 15 n'est pas limité à trois, mais peut s'étendre à un nombre quelconque, notamment à cinq, lorsque le câble est destiné à véhiculer du courant électrique triphasé et comporte cinq fils enrobés.It should also be noted that the number of grooves 15 is not limited to three, but can extend to any number, in particular to five, when the cable is intended for convey three-phase electric current and has five coated wires.

La figure 5 représente le couvercle 12 équipé de trois griffes de raccordement doubles. Une de ces griffes est représentée par la vue en perspective de la figure 6. Ces trois griffes, qui correspondent aux trois fils 13a, 13b et 13c du câble 13, sont montées respectivement dans les trois gorges 17 et plus particulièrement dans des niches 30 délimitées à l'intérieur de ces gorges. Ces niches 30 sont délimitées par les nervures longitudinales 18, les bords latéraux 31 du couvercle 12 et des cloisons transversales 32. Les griffes sont engagées de force dans ces niches dont les parois sont toutes réalisées d'une pièce par moulage lors de la fabrication du couvercle.FIG. 5 shows the cover 12 fitted with three double connecting claws. One of these claws is represented by the perspective view of FIG. 6. These three claws, which correspond to the three wires 13a, 13b and 13c of the cable 13, are mounted respectively in the three grooves 17 and more particularly in delimited niches 30 inside these gorges. These niches 30 are delimited by the longitudinal ribs 18, the lateral edges 31 of the cover 12 and transverse partitions 32. The claws are forcibly engaged in these niches whose walls are all made in one piece by molding during the manufacture of the lid.

Chaque griffe 19 comporte une base 33 qui porte deux organes de contact autodénudants 34. La base 33 et les deux organes de contact sont réalisés d'une pièce en métal par estampage pliage. Chaque organe de contact autodénudant 34 comprend deux branches 35 et 36 parallèles et écartées l'une de l'autre d'une distance moyenne qui est égale ou de préférence légèrement inférieure au diamètre des conducteurs 20a, 20b et 20c des fils 13a, 13b et 13c. Les organes de contact 34 sont solidaires de deux côtés opposés de la base 33 et ont une orientation sensiblement perpendiculaire au plan de la base 33.Each claw 19 has a base 33 which carries two insulation displacement contact members 34. The base 33 and the two contact members are made of a metal part by bending stamping. Each insulation displacement contact member 34 comprises two parallel branches 35 and 36 spaced from one another by an average distance which is equal to or preferably slightly less than the diameter of the conductors 20a, 20b and 20c of the wires 13a, 13b and 13c. The contact members 34 are integral with two opposite sides of the base 33 and have an orientation substantially perpendicular to the plane of the base 33.

Le profil des organes de contact autodénudants 34 apparaît sur la figure 7. Les branches opposées 35 et 36 présentent à leur extrémité libre une pointe 37, 38 qui permet une pénétration desdits organes dans l'épaisseur de l'isolant qui entoure les conducteurs du fil. Cette pointe est raccordée à une section en retrait 39, 40 qui définit avec la section correspondante de l'autre branche une zone légèrement élargie 41 de la fente définie entre les deux branches 35 et 36.The profile of the insulation displacement contact members 34 appears in FIG. 7. The opposite branches 35 and 36 have at their free end a point 37, 38 which allows penetration of said members into the thickness of the insulation which surrounds the conductors of the wire. . This point is connected to a recessed section 39, 40 which defines with the corresponding section of the other branch a slightly enlarged area 41 of the slot defined between the two branches 35 and 36.

Les figures 8 et 9 illustrent la fonction des organes de contact 34 dans une phase initiale et une phase finale d'utilisation de connecteur. Dans la phase représentée par la figure 8, on admet que l'isolant extérieur du câble a déjà été perforé par les pointes 37 et 38 qui ont également pénétré à l'intérieur de la couche isolante entourant le conducteur 20a du fil 13a. Les bords intérieurs de ces pointes viennent en contact avec le conducteur, ce qui a pour effet d'écarter légèrement les deux branches 35 et 36 de l'organe de contact 34 lorsque l'opérateur continue à l'enfoncer, c'est-à-dire à engager le couvercle portant cet organe de contact sur le socle du connecteur. La figure 9 montre que ce mouvement relatif du conducteur 20a et de l'organe de contact 34 a pour effet de déformer légèrement ce conducteur qui se positionne finalement dans la zone élargie 41, définie en référence à la figure 7. Grâce à cette déformation et à l'existence de la zone élargie, le couplage électrique entre l'organe de contact et le conducteur s'effectue de manière satisfaisante et cela sans qu'il soit nécessaire de procéder à un dénudage préalable.Figures 8 and 9 illustrate the function of the contact members 34 in an initial phase and a final phase of connector use. In the phase represented by FIG. 8, it is assumed that the external insulation of the cable has already been perforated by the tips 37 and 38 which have also penetrated inside the insulating layer surrounding the conductor 20a of the wire 13a. The inner edges of these points come into contact with the conductor, which has the effect of slightly separating the two branches 35 and 36 from the contact member 34 when the operator continues to push it in, that is to say say to engage the cover carrying this contact member on the base of the connector. FIG. 9 shows that this relative movement of the conductor 20a and of the contact member 34 has the effect of slightly deforming this conductor which is finally positioned in the enlarged zone 41, defined with reference to FIG. 7. Thanks to this deformation and with the existence of the enlarged zone, the electrical coupling between the contact member and the conductor is carried out satisfactorily and without this being necessary to carry out a preliminary stripping.

Les griffes de raccordement sont avantageusement réalisées en un matériau électriquement conducteur, tel que par exemple un alliage cuivre-béryllium qui réalise un bon compromis entre la conductibilité électrique, l'élasticité et la tenue au fluage.The connection claws are advantageously made of an electrically conductive material, such as for example a copper-beryllium alloy which achieves a good compromise between electrical conductivity, elasticity and creep resistance.

L'assemblage du couvercle sur le socle, qui s'effectue simultanément à l'opération de couplage des fils électriques par raccordement autodénudant, est réalisé au moyen d'une pince spéciale. Des bornes de raccordement diverses peuvent équiper le connecteur. Elles peuvent être du type à vis, à soudure, à sertissage etc.The assembly of the cover on the base, which is carried out simultaneously with the coupling operation of the electrical wires by insulation displacement connection, is carried out by means of a special clamp. Various connection terminals can be fitted to the connector. They can be of the screw, solder, crimp, etc. type.

L'avantage principal de ce connecteur est qu'il peut être placé à un endroit quelconque du câble et qu'il permet d'effectuer un branchement électrique sur ce câble d'une manière efficace, rapide et sûre, sans intervention directe sur le câble.The main advantage of this connector is that it can be placed anywhere on the cable and that it allows electrical connection to this cable in an efficient, fast and safe manner, without direct intervention on the cable. .

La présente invention n'est pas limitée aux formes de réalisation décrites ci-dessus, mais peut subir différentes modifications et se présenter sous diverses variantes évidentes pour un homme du métier.The present invention is not limited to the embodiments described above, but can undergo different modifications and come in various variants obvious to a person skilled in the art.

Claims (7)

Connecteur autodénudant adapté à un câble plat du type comprenant plusieurs fils électriques isolés ou plusieurs conducteurs nus, noyés dans une gaine isolante, et comportant un socle (11), un couvercle (12) agencé pour être adapté sur ledit socle et des griffes de raccordement (19), dont le nombre est au moins égal au nombre de fils électriques isolés (13a, 13b, 13c) ou de conducteurs nus, ces griffes de raccordement étant montées à l'intérieur d'un espace défini par le socle et le couvercle et agencé pour loger ledit câble plat (13), et pourvue d'au moins un organe de contact autodénudant (34), caractérisé en ce que: - les griffes de raccordement (19) sont montées à l'intérieur du couvercle (12), chaque griffe de raccordement comportant une base (33) équipée de deux organes de contact autodénudants (34) comprenant chacun deux branches (35, 36) parallèles et écartées l'une de l'autre d'une distance égale ou légèrement inférieure au diamètre du conducteur (20a, 20b, 20c) du fil électrique (13a, 13b, 13c) correspondant, - chaque branche (35, 36) de l'organe de contact autodénudant (34) est pourvue d'une pointe agencée pour perforer l'isolant entourant le conducteur, et une section de retrait (39, 40) qui définit avec la section correspondante de l'autre branche une zone élargie (41) agencée pour recevoir le conducteur d'un fil électrique et dans laquelle se fait le couplage électrique entre ce conducteur et la griffe de raccordement correspondante. Insulation displacement connector adapted to a flat cable of the type comprising several insulated electrical wires or several bare conductors, embedded in an insulating sheath, and comprising a base (11), a cover (12) arranged to be adapted on said base and connection claws (19), the number of which is at least equal to the number of insulated electrical wires (13a, 13b, 13c) or of bare conductors, these connection claws being mounted inside a space defined by the base and the cover and arranged to accommodate said flat cable (13), and provided with at least one insulation displacement contact member (34), characterized in that: - the connection claws (19) are mounted inside the cover (12), each connection claw comprising a base (33) equipped with two insulation displacement contact members (34) each comprising two parallel branches (35, 36) and spaced from each other by a distance equal to or slightly less than the diameter of the conductor (20a, 20b, 20c) of the corresponding electric wire (13a, 13b, 13c), - Each branch (35, 36) of the insulation displacement contact member (34) is provided with a point arranged to perforate the insulation surrounding the conductor, and a withdrawal section (39, 40) which defines with the corresponding section on the other branch an enlarged area (41) arranged to receive the conductor of an electric wire and in which the electrical coupling takes place between this conductor and the corresponding connection shoe. Connecteur selon la revendication 1, caractérisé en ce que le socle et le couvercle sont respectivement pourvus de gorges (15; 17) respectivement séparées par des renflements longitudinaux (16) et des nervures longitudinales (18), ces gorges (15; 17) étant agencées pour coopérer deux à deux et loger un desdits fils électriques, et les renflements (16) longitudinaux (16) et les nervures longitudinales (18) étant agencés pour coopérer et prendre appui sur des ponts de liaison (14) séparant les fils (13a, 13b, 13c) du câble plat (13).Connector according to claim 1, characterized in that the base and the cover are respectively provided with grooves (15; 17) respectively separated by longitudinal bulges (16) and longitudinal ribs (18), these grooves (15; 17) being arranged to cooperate two by two and accommodate one of said electrical wires, and the longitudinal bulges (16) (16) and the longitudinal ribs (18) being arranged to cooperate and bear on connection bridges (14) separating the wires (13a , 13b, 13c) of the ribbon cable (13). Connecteur selon la revendication 2, caractérisé en ce que les griffes de raccordement (19) sont logées chacune dans une niche (30) délimitée à l'intérieur desdites gorges (17) par des cloisons transversales (32).Connector according to claim 2, characterized in that the connection claws (19) are each housed in a recess (30) delimited inside said grooves (17) by transverse partitions (32). Connecteur selon la revendication 1, caractérisé en ce que les griffes de raccordement (19) sont réalisées en métal par estampage-pliage.Connector according to claim 1, characterized in that the connection claws (19) are made of metal by stamping-bending. Connecteur selon la revendication 1, caractérisé en ce que le socle (11) comporte deux bords latéraux (21) relevés et pourvus d'au moins une entaille centrale (22), et en ce que le couvercle (12) comporte deux prolongements latéraux (23) agencés pour être engagés respectivement dans les entailles centrales (22) du socle.Connector according to claim 1, characterized in that the base (11) has two lateral edges (21) raised and provided with at least one central notch (22), and in that the cover (12) has two lateral extensions ( 23) arranged to be engaged respectively in the central notches (22) of the base. Connecteur selon la revendication 5, caractérisé en ce que les bords relevés (21) du socle ont un profil de portiques (24) en forme de U dont les segments supérieurs (25) sont agencés pour coopérer avec des protubérances (26) du couvercle pour assurer un blocage en position de ce dernier sur le socle.Connector according to claim 5, characterized in that the raised edges (21) of the base have a profile of gantries (24) in the shape of a U, the upper segments (25) of which are arranged to cooperate with protrusions (26) of the cover for secure the latter in position on the base. Connecteur selon la revendication 6, caractérisé en ce que lesdites protubérances (26) du couvercle (12) présentent une rampe inclinée (26a) qui constitue un flanc d'attaque pour coopérer avec des bords inclinés (25a) des segments supérieurs (25) des bords relevés (21) du socle, à profils de portiques (24).Connector according to claim 6, characterized in that said protrusions (26) of the cover (12) have an inclined ramp (26a) which constitutes a leading flank for cooperating with inclined edges (25a) of the upper segments (25) of the raised edges (21) of the base, with portal profiles (24).
EP95410044A 1994-05-25 1995-05-11 Insulation displacement connector Expired - Lifetime EP0684662B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9406571A FR2720551B1 (en) 1994-05-25 1994-05-25 Self-stripping connector.
FR9406571 1994-05-25

Publications (2)

Publication Number Publication Date
EP0684662A1 true EP0684662A1 (en) 1995-11-29
EP0684662B1 EP0684662B1 (en) 1998-10-28

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ID=9463659

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Application Number Title Priority Date Filing Date
EP95410044A Expired - Lifetime EP0684662B1 (en) 1994-05-25 1995-05-11 Insulation displacement connector

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US (1) US5651691A (en)
EP (1) EP0684662B1 (en)
DE (1) DE69505593T2 (en)
ES (1) ES2126234T3 (en)
FR (1) FR2720551B1 (en)

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WO2001011724A1 (en) * 1999-08-10 2001-02-15 Fritz Eigen Blade contact
US7857655B2 (en) 2008-07-11 2010-12-28 Reichle & De-Massari Ag Insulation displacement contact and contacting device
EP2636102A1 (en) * 2010-11-03 2013-09-11 Harting Electronics GmbH & Co. KG Contact element for plug-in connector socket
US20150090492A1 (en) * 2012-05-30 2015-04-02 Shenzhen Top-Link Electronics Co., Ltd Mains Power Wire Connection Assembly and Connection Method
CN111492544A (en) * 2017-12-21 2020-08-04 萨基姆宽带联合股份公司 Mounting support intended to make it easier to connect at least one free connector to a complementary connector

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US6328592B1 (en) * 1996-06-07 2001-12-11 Molex Incorporated Electrical connector with cable clamping means
US6398580B2 (en) * 2000-01-11 2002-06-04 Visteon Global Tech., Inc. Electrical terminal member
EP1178571A3 (en) * 2000-07-31 2002-04-03 FINCANTIERI CANTIERI NAVALI ITALIANI S.p.A. Improvements in devices and methods for electrical and signal distribution, particularly in shipping environments
JP4504534B2 (en) * 2000-08-22 2010-07-14 矢崎総業株式会社 Connection box wire holding structure
US6398581B1 (en) * 2000-12-19 2002-06-04 American Standard Inc. Bus connector and method for integrating electrical test points in the bus connector
US6524127B2 (en) * 2001-06-18 2003-02-25 Illinois Tool Works Insulation displacement connector with reversed bevel cutting edge contacts
US6837737B2 (en) 2002-10-10 2005-01-04 American Standard International Inc. Bus connector
US20070270018A1 (en) * 2006-05-17 2007-11-22 3M Innovative Properties Company Low profile punching connector
US20110009016A1 (en) * 2009-07-07 2011-01-13 Sam Liu Snap housing for a modular connector assembly
DE102012015581A1 (en) * 2012-08-07 2014-02-13 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Connectors
JP6476109B2 (en) * 2015-12-25 2019-02-27 京セラ株式会社 Branch connector

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Cited By (7)

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Publication number Priority date Publication date Assignee Title
WO2001011724A1 (en) * 1999-08-10 2001-02-15 Fritz Eigen Blade contact
US7857655B2 (en) 2008-07-11 2010-12-28 Reichle & De-Massari Ag Insulation displacement contact and contacting device
EP2636102A1 (en) * 2010-11-03 2013-09-11 Harting Electronics GmbH & Co. KG Contact element for plug-in connector socket
EP2636102A4 (en) * 2010-11-03 2014-05-14 Harting Electronics Gmbh & Co Contact element for plug-in connector socket
US20150090492A1 (en) * 2012-05-30 2015-04-02 Shenzhen Top-Link Electronics Co., Ltd Mains Power Wire Connection Assembly and Connection Method
US9577353B2 (en) * 2012-05-30 2017-02-21 Shenzhen Top-Link Electronics Co. Mains power wire connection assembly and connection method
CN111492544A (en) * 2017-12-21 2020-08-04 萨基姆宽带联合股份公司 Mounting support intended to make it easier to connect at least one free connector to a complementary connector

Also Published As

Publication number Publication date
DE69505593T2 (en) 1999-06-17
EP0684662B1 (en) 1998-10-28
DE69505593D1 (en) 1998-12-03
FR2720551B1 (en) 1996-07-05
US5651691A (en) 1997-07-29
FR2720551A1 (en) 1995-12-01
ES2126234T3 (en) 1999-03-16

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