EP0951094A1 - Connection arrangement with insulation displacement connector - Google Patents

Connection arrangement with insulation displacement connector Download PDF

Info

Publication number
EP0951094A1
EP0951094A1 EP99420087A EP99420087A EP0951094A1 EP 0951094 A1 EP0951094 A1 EP 0951094A1 EP 99420087 A EP99420087 A EP 99420087A EP 99420087 A EP99420087 A EP 99420087A EP 0951094 A1 EP0951094 A1 EP 0951094A1
Authority
EP
European Patent Office
Prior art keywords
cable
stripping
conductive part
slot
conductive
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
EP99420087A
Other languages
German (de)
French (fr)
Other versions
EP0951094B1 (en
Inventor
Sylvain Barrat
Bernard Bechaz
Philippe France
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.)
ABB France SAS
Original Assignee
Entrelec 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 Entrelec SAS filed Critical Entrelec SAS
Publication of EP0951094A1 publication Critical patent/EP0951094A1/en
Application granted granted Critical
Publication of EP0951094B1 publication Critical patent/EP0951094B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48455—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar insertion of a wire only possible by pressing on the spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/48275—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end with an opening in the housing for insertion of a release tool
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting

Definitions

  • the present invention relates to a self-stripping connection device for an electric cable consisting of a conductive core and an insulating sheath.
  • Such a device makes it possible to connect an electric cable to a conductive piece without the need to strip beforehand one end of the electrical cable.
  • the self-stripping connection device performs local stripping of the cable, for example by cutting the insulating sheath surrounding the conductive core, before making contact electric between the conductive core thus locally stripped and the part conductive.
  • European patent EP 0 247 360 discloses a device for self-stripping connection comprising a conductive connection part which has a slot intended to receive the cable to be connected and which is mounted in an insulating housing having at least one opening allowing the introduction of the cable to be connected, as well as means allowing to strip the electric cable locally.
  • the conductive part has a core stripping and retaining slot of the cable.
  • This slot which is rectilinear, is longitudinally formed at the along a profile-shaped part which is obtained for example from of a flat blank, by stamping causing its cutting, folding and possibly localized thinning.
  • the profiled part of the part conductive has a hollow polygonal cross section which corresponds to a U whose free ends have been obliquely and also folded towards each other.
  • the profiled part thus obtained has two folds end corresponding to the free ends obliquely and also folded up mentioned above. These two folds line the slit they delimit.
  • a stripped mouth of the conductive part is formed at one end of the slot. It is obtained by oblique cutting symmetrical pleats bordering the slot at one of their ends. This oblique cut to obtain a flared mouth.
  • the folding subsequent folds, relative to the walls which carry them creates an edge upper sufficient to start the sheath of the cables pushed in this mouth.
  • a special tool with a tip adapted to the shape of the conductive part is provided for introducing an electric cable in the conductive part.
  • connection device allows to realize, without stripping good electrical contact between the conductive part and the core conductive of a cable.
  • the same conductive part can receive cables of different diameters within a determined diameter range.
  • connection device requires the use of a specific tool. Without this tool it is very difficult to make a connection.
  • connection device The conductive part of this connection device must be made of special materials to ensure both good stripping and good electrical contact and as it appears from the brief description above, the realization of this conductive part is quite complex. This makes this connection device a cost price quite high.
  • the object of the present invention is therefore to propose a new self-stripping connection device.
  • This device may preferably be used without a specific tool and will advantageously cost comes back low.
  • the self-stripping connection device for a electric cable consisting of a conductive core and an insulating sheath, which it proposes comprises a conductive connecting part which has a slot intended to receive the cable to be connected as well as means allowing to strip the electric cable locally.
  • the means for stripping locally the electric cable are made on a separate part of the conductive part and face the slot of the latter, and means movement are provided to move the cable from a position introduction in which the non-stripped cable is introduced into the device to a connection position in which the cable is located in the slot of the conductive part and in which the cable core is in electrical contact with the conductive part, the cable passing through the means making it possible to strip it locally during this displacement.
  • This device can for example take place in a case insulator which has an opening allowing the introduction of the cable to connect.
  • the conductive part of connection is mounted in an insulating box having at least one opening allowing the introduction of the cable to be connected, and the means of displacement comprise an elastic blade provided with means cable drive means, the cable drive means facing the slot of the conductive part in the rest position of the elastic blade and facing the cable insertion opening in the insulating housing in the preloaded position of the elastic blade.
  • the means of displacement comprise an elastic blade provided with means cable drive means, the cable drive means facing the slot of the conductive part in the rest position of the elastic blade and facing the cable insertion opening in the insulating housing in the preloaded position of the elastic blade.
  • an opening is advantageously provided in the insulating housing so as to allow the passage of a tool, such as a screwdriver blade, to prestress the blade elastic.
  • the means preferably have a window in which can pass this cable. In some configurations, it may be sufficient to have a fork between the teeth of which the cable is placed.
  • the means of movement and the means for strip the cable locally are advantageously made on the same room.
  • the device according to the invention has for example a part made in an elastic blade folded so that its two ends are substantially parallel to each other, one end being provided with two stripping lips and the other end end being provided with cable drive means, such as example a window.
  • the elastic blade on the side of the stripping lips, then rests preferably on the conductive part whose shape it follows, the lips stripping being tilted relative to the elastic blade so that the stripping part of these lips is well in front of the slot of the conductive part.
  • the cable drive means preferably include lugs guide substantially resuming the shape of the stripping lips.
  • the slot intended receiving the cable to be connected advantageously has an opening V-shaped and is extended, on the tip of the V, by two edges substantially parallel.
  • the present invention also relates to a terminal block of connection comprising an insulating box and a conductive part intended to be electrically connected to at least one electrical cable, terminal block which is provided with at least one self-stripping connection device as described above.
  • Figure 1 shows a terminal block fitted with two connection.
  • This terminal block includes an insulating housing 2, two springs 4, as well than a conductive part 6.
  • the insulating housing 2 is a piece of synthetic material obtained for example by molding.
  • the shape of its base is such that it can be fixed on standard fixing rails provided for this purpose.
  • a housing 8 is provided for each spring 4 and each end of the conductive part 6.
  • the upper face of the housing 2 has at each housing each time an opening 10 intended to receive a cable to be connected and an opening 12 intended to receive the blade of a screwdriver.
  • the conductive part 6 is shown in perspective on the Figure 1 and in top view in Figure 3. This part 6 can receive two electric cables, one at each end.
  • This piece conductive 6 is made from a metal blade, for example by copper.
  • each slot 14 is made at each end of the blade.
  • Each slot 14 is formed on the axis longitudinal median of the blade.
  • the slot 14 has a V-shaped zone 16, the point of the V being inside of the blade.
  • the slot 14 is extended by a zone 18 in which the edges of the slot are substantially parallel. So each end of the conductive part is in the form of a fork each of which arm has a certain elasticity, thanks to which the slot 14 can receive cables of different diameters while ensuring a excellent electrical contact.
  • edges of the slot 14, both at the level of the V-shaped zone 16 that at the level of the zone 18 where the edges are parallel, are thinned. This thinning does not give the slot a cutting function but is made to fit the dimensions of the cutout that is made at level of the springs 4 and which will be described later.
  • a tongue 20 is produced substantially in the middle of the part conductive to allow it to snap into the insulating housing 2.
  • FIG. 2 shows in more detail a spring 4.
  • a spring is formed from an elastic blade which can also be, for example, copper.
  • This elastic blade is folded so as to form a spring.
  • the width of the elastic blade used is substantially equal to the width of the blade used to make the conductive part 6.
  • the central area of the elastic blade is folded so as to form an arc of a circle over a little more than 180 °. So the ends substantially parallel to the spring can move elastically one compared to each other. In the rest position, represented in FIG. 1 by example, the two ends of the elastic blade are offset one by compared to each other.
  • a first end of the elastic blade is folded so you can come and take the swan neck shape from one end of the conductive part 6.
  • each spring 4 comes to take place in its housing 8 on one end of the conductive part 6.
  • the rounded central part of the spring 4 is placed at the base of the swan neck shape of one end of the conductive part 6.
  • the spring 4 follows the upper face of the whole end in the form of gooseneck of the conductive part 6 and one end of this spring protrudes from the conductive part 6. The other end of the spring 4 comes place over this first end.
  • the end of the spring 4 which rests on the conductive part 6 is provided with a window 22.
  • this window 22 On the side of the end of the spring 4, this window 22 has a space 24 of sufficient size to receive a electric cable to connect.
  • Inside window 22 is also two stripping lips 26. These lips 26 extend in a transverse direction relative to the elastic blade forming the spring 4 and are inclined opposite the other end of the spring. So these lips protrude from the elastic blade on the side of the conductive part 6 when the spring 4 is mounted on this conductive part 6 (FIGS. 4 to 6).
  • the ends of the lips 26 are spaced apart from each other so to cut the insulating sheath of an electric cable which moves longitudinally relative to the elastic blade forming the spring 4 without damage the conductive core of this cable.
  • Window 22 also shows a space 28 intended to receive a cable once it has been locally stripped by stripped lips 26.
  • the spring 4 is placed on the conductive part 6 so that that the stripping lips 26 abut against the end of the part conductive 6.
  • the lips 26 are then in front of the slot 14. We ensures that the stripping area of the lips 26 is at the level of the thinned edges of the slot 14.
  • the other end of the spring 4 is also provided with a window 30.
  • Window 30 shows a substantially square shape with two longitudinal edges and two edges transverse to the elastic blade forming the spring 4. The two transverse edges are each provided with a lug 32.
  • Each lug 32 extends towards the other end of the spring 4. These lugs resume substantially the shape of the stripping lips 26. There are thus lugs in V shape, each branch of the V being inclined substantially the same so that the lips 26 are inclined. In this way, the pins 32 allow good guidance of a cable to be connected to pass this cable between the stripping lips 26. The cable to be stripped and connected is then guided over the entire height of the lug and not just on the thickness of the elastic blade 4.
  • the window 30 In the rest position of the spring 4, the window 30 is substantially above the space 28 of the window 22. In position window 30 is located above space 24 of the window 22.
  • a tongue 34 is provided on each spring 4 in order to properly hold it on the conductive part 6.
  • the tongue 34 can by example cooperate with the end of a slot 14 opposite the end having a V-shaped zone 16
  • Figure 4 shows a conductive part 6 and two springs 4 at rest in the insulating housing 2.
  • the springs 4 and the shaped ends of the swan neck of the conductive part 6 are each placed in a housing 8.
  • stops 36 are provided inside the housings 8. There is thus a stop 36 placed inside the rounding of the spring 4 and another stop 36 allowing the correct positioning of one end of the conductive part 6.
  • connection device The operation of a connection device according to the invention is described below with reference to FIGS. 4 to 6.
  • FIG. 4 shows the two connection devices in position rest.
  • Each space 24 intended to receive a cable to be connected is located opposite an opening 10 of the housing.
  • Windows 30 for the movement of a cable are erased relative to these openings 10.
  • a first operation to perform to allow the connection of a cable is to prestress the spring 4. This is achieved by introducing the end of a tool, for example a screwdriver blade, through a opening 12 of the housing 2.
  • the blade 38 of the screwdriver meets the spring 4 and is deflected towards a wall 40 of the housing 8.
  • this wall 40 is such that by fully inserting the screwdriver into opening 12 until that the blade 38 of the screwdriver comes to the bottom of the housing 8, or more precisely comes into abutment against the conductive part 6, the spring either deformed so that the window 30 of the spring faces the space 24 of window 22 of the spring intended to receive a cable 42 to be connected.
  • Figure 5 shows the spring 4 in its preloaded position thanks to the action of the screwdriver blade 38 and also shows the end of a cable 42 which has been introduced through an opening 10 in the box 2.
  • This end of cable 42 encounters no obstacle and first crosses the window 30 of the spring then the space 24 of the window 22 of this spring.
  • the cable 42 consists of a conductive core and an insulating sheath.
  • the end of the cable 42 is now introduced into the case 2, the screwdriver blade 38 can be removed from this case 2.
  • the spring 4 is then released.
  • the energy stored by this spring during its deformation by the screwdriver blade is restored and used to pass the end of the cable 42 through the stripping lips 26 and to carry out the connection at the conductive part 6.
  • the end of the cable 42 is guided over the entire height of a lug 32 when it passes between the lips 26.
  • the insulating sheath of the cable is cut transversely to the axis of cable 42 thus exposing locally the conductive core of the cable.
  • the shape of the lips 26 gives them a elasticity which allows them to adapt to the diameters of cables found within a predetermined diameter range. For each diameter of cable in this range, the lips 26 cut the insulating sheath so to expose locally the conductive core without damaging it.
  • the end of the cable is brought into the slot 14 of the conductive part 6.
  • the stripped area of the end of the cable 42 then slides at the level of the thinned edges of the slot 14.
  • the end of the cable 42 is housed at the base of the zone 16 in the form of V.
  • the spring is then not in its rest position. A constraint elastic is therefore still exerted on the cable 42 via including lug 32. This constraint promotes good contact electric between the conductive core of the cable 42 and the conductive part 6.
  • the means for moving the end of the cable to be connected and the means for locally stripping it are carried out on a same piece, the spring.
  • part of this spring is fixed and does not move during any the connection operation. It is therefore quite possible to have a fixed part at which the stripping of the end of the cable and a moving part to allow movement thereof.
  • connection device to another device electric than a terminal block is of course also possible.
  • Such connection device can be used for connecting a cable to various types of electrical equipment. This device can also be used without the presence of an insulating box.

Abstract

The stripping part is made in a single section. The strip section forms an entrance part with protruding section through which the cable passes and the outer sleeve is stripped.

Description

La présente invention concerne un dispositif de connexion auto-dénudant pour un câble électrique constitué d'une âme conductrice et d'une gaine isolante.The present invention relates to a self-stripping connection device for an electric cable consisting of a conductive core and an insulating sheath.

Un tel dispositif permet de connecter un câble électrique sur une pièce conductrice sans qu'il soit nécessaire au préalable de dénuder une extrémité du câble électrique. Le dispositif de connexion auto-dénudant réalise un dénudage local du câble, par exemple en entaillant la gaine isolante entourant l'âme conductrice, avant de réaliser un contact électrique entre l'âme conductrice ainsi localement dénudée et la pièce conductrice.Such a device makes it possible to connect an electric cable to a conductive piece without the need to strip beforehand one end of the electrical cable. The self-stripping connection device performs local stripping of the cable, for example by cutting the insulating sheath surrounding the conductive core, before making contact electric between the conductive core thus locally stripped and the part conductive.

Le brevet européen EP 0 247 360 révèle un dispositif de connexion auto-dénudant comportant une pièce conductrice de connexion qui présente une fente destinée à recevoir le câble à connecter et qui est monté dans un boítier isolant présentant au moins une ouverture permettant l'introduction du câble à connecter, ainsi que des moyens permettant de dénuder localement le câble électrique. Dans ce dispositif, la pièce conductrice comporte une fente de dénudage et de retenue de l'âme du câble. Cette fente, qui est rectiligne, est longitudinalement ménagée au long d'une partie en forme de profilé qui est obtenue par exemple à partir d'un flan plan, par matriçage entraínant sa découpe, son pliage et éventuellement des amincissements localisés. La partie profilée de la pièce conductrice a une section transversale polygonale creuse qui correspond à un U dont les extrémités libres ont été obliquement et également repliées l'une vers l'autre. La partie profilée ainsi obtenue comporte deux plis d'extrémité correspondant aux extrémités libres obliquement et également repliées évoquées ci-dessus. Ces deux plis bordent la fente qu'ils délimitent. Une embouchure dénudante de la pièce conductrice est ménagée à une extrémité de la fente. Elle est obtenue par découpe oblique symétrique des plis bordant la fente à une de leurs extrémités. Cette découpe oblique permet d'obtenir une embouchure évasée. Le pliage ultérieur des plis, par rapport aux parois qui les portent crée une arête supérieure suffisante pour entamer la gaine des câbles poussés dans cette embouchure.European patent EP 0 247 360 discloses a device for self-stripping connection comprising a conductive connection part which has a slot intended to receive the cable to be connected and which is mounted in an insulating housing having at least one opening allowing the introduction of the cable to be connected, as well as means allowing to strip the electric cable locally. In this device, the conductive part has a core stripping and retaining slot of the cable. This slot, which is rectilinear, is longitudinally formed at the along a profile-shaped part which is obtained for example from of a flat blank, by stamping causing its cutting, folding and possibly localized thinning. The profiled part of the part conductive has a hollow polygonal cross section which corresponds to a U whose free ends have been obliquely and also folded towards each other. The profiled part thus obtained has two folds end corresponding to the free ends obliquely and also folded up mentioned above. These two folds line the slit they delimit. A stripped mouth of the conductive part is formed at one end of the slot. It is obtained by oblique cutting symmetrical pleats bordering the slot at one of their ends. This oblique cut to obtain a flared mouth. The folding subsequent folds, relative to the walls which carry them creates an edge upper sufficient to start the sheath of the cables pushed in this mouth.

Un outil spécial présentant un embout de forme adaptée à la forme de la pièce conductrice est prévu pour introduire un câble électrique dans la pièce conductrice. Le boítier isolant dans lequel est montée la pièce conductrice est configuré pour s'adapter à l'outil.A special tool with a tip adapted to the shape of the conductive part is provided for introducing an electric cable in the conductive part. The insulating box in which the conductive part is configured to fit the tool.

Ce dispositif de connexion permet de réaliser, sans dénudage préalable, un bon contact électrique entre la pièce conductrice et l'âme conductrice d'un câble. Une même pièce conductrice peut recevoir des câbles de diamètres différents dans une plage de diamètres déterminée.This connection device allows to realize, without stripping good electrical contact between the conductive part and the core conductive of a cable. The same conductive part can receive cables of different diameters within a determined diameter range.

Un inconvénient de ce dispositif de connexion est qu'il nécessite l'emploi d'un outil spécifique. Sans cet outil, il est très difficile de réaliser une connexion.One drawback of this connection device is that it requires the use of a specific tool. Without this tool it is very difficult to make a connection.

La pièce conductrice de ce dispositif de connexion doit être réalisée dans des matériaux spéciaux pour assurer à la fois un bon dénudage et un bon contact électrique et, comme il ressort de la brève description ci-dessus, la réalisation de cette pièce conductrice est assez complexe. Ceci fait que ce dispositif de connexion est d'un prix de revient assez élevé.The conductive part of this connection device must be made of special materials to ensure both good stripping and good electrical contact and as it appears from the brief description above, the realization of this conductive part is quite complex. This makes this connection device a cost price quite high.

La présente invention a alors pour but de proposer un nouveau dispositif de connexion auto-dénudant. Ce dispositif pourra de préférence être utilisé sans outil spécifique et sera avantageusement d'un prix de revient peu élevé.The object of the present invention is therefore to propose a new self-stripping connection device. This device may preferably be used without a specific tool and will advantageously cost comes back low.

À cet effet, le dispositif de connexion auto-dénudant pour un câble électrique constitué d'une âme conductrice et d'une gaine isolante, qu'elle propose comporte une pièce conductrice de connexion qui présente une fente destinée à recevoir le câble à connecter ainsi que des moyens permettant de dénuder localement le câble électrique.For this purpose, the self-stripping connection device for a electric cable consisting of a conductive core and an insulating sheath, which it proposes comprises a conductive connecting part which has a slot intended to receive the cable to be connected as well as means allowing to strip the electric cable locally.

Selon l'invention, les moyens permettant de dénuder localement le câble électrique sont réalisés sur une pièce distincte de la pièce conductrice et font face à la fente de cette dernière, et des moyens de déplacement sont prévus pour déplacer le câble depuis une position d'introduction dans laquelle le câble non dénudé est introduit dans le dispositif vers une position de connexion dans laquelle le câble se trouve dans la fente de la pièce conductrice et dans laquelle l'âme du câble est en contact électrique avec la pièce conductrice, le câble passant par les moyens permettant de le dénuder localement au cours de ce déplacement.According to the invention, the means for stripping locally the electric cable are made on a separate part of the conductive part and face the slot of the latter, and means movement are provided to move the cable from a position introduction in which the non-stripped cable is introduced into the device to a connection position in which the cable is located in the slot of the conductive part and in which the cable core is in electrical contact with the conductive part, the cable passing through the means making it possible to strip it locally during this displacement.

Dans un tel dispositif, les fonctions de dénudage et de connexion sont assurées par des pièces distinctes. Il en résulte des pièces assez simples à fabriquer et qui peuvent être réalisées dans des matériaux "ordinaires". In such a device, the stripping and connection are ensured by separate parts. This results in parts fairly simple to manufacture and can be made of materials "ordinary".

Ce dispositif peut par exemple prendre place dans un boítier isolant qui comporte une ouverture permettant l'introduction du câble à connecter.This device can for example take place in a case insulator which has an opening allowing the introduction of the cable to connect.

On peut prévoir diverses manières d'agir sur les moyens de déplacement. On peut ainsi envisager un poussoir tel que par exemple décrit dans le brevet FR-2 503 464 et qui permet l'introduction d'un câble dans une mâchoire auto-dénudante.We can foresee various ways of acting on the means of displacement. We can thus consider a pusher such as for example described in patent FR-2 503 464 and which allows the introduction of a cable in a self-stripping jaw.

Dans une forme de réalisation préférée, la pièce conductrice de connexion est montée dans un boítier isolant présentant au moins une ouverture permettant l'introduction du câble à connecter, et les moyens de déplacement comportent une lame élastique munie de moyens d'entraínement du câble électrique, les moyens d'entraínement du câble se trouvant face à la fente de la pièce conductrice dans la position de repos de la lame élastique et face à l'ouverture d'introduction du câble dans le boítier isolant dans la position précontrainte de la lame élastique. Pour réaliser une connexion d'un câble, il suffit alors de précontraindre la lame élastique, d'introduire un câble à connecter et de relâcher la lame élastique qui tend alors à revenir dans sa position de repos, et qui entraíne alors avec elle le câble vers la fente de la pièce conductrice.In a preferred embodiment, the conductive part of connection is mounted in an insulating box having at least one opening allowing the introduction of the cable to be connected, and the means of displacement comprise an elastic blade provided with means cable drive means, the cable drive means facing the slot of the conductive part in the rest position of the elastic blade and facing the cable insertion opening in the insulating housing in the preloaded position of the elastic blade. For make a cable connection, all you have to do is prestress the blade elastic, introduce a cable to connect and release the elastic blade which then tends to return to its rest position, and which then drives with it the cable to the slot of the conductive part.

Dans cette forme de réalisation, une ouverture est avantageusement prévue dans le boítier isolant de manière à permettre le passage d'un outil, tel une lame de tournevis, pour précontraindre la lame élastique.In this embodiment, an opening is advantageously provided in the insulating housing so as to allow the passage of a tool, such as a screwdriver blade, to prestress the blade elastic.

Pour réaliser un bon guidage du câble à connecter, les moyens d'entraínement présentent de préférence une fenêtre dans laquelle peut passer ce câble. Dans certaines configurations, il peut suffire d'avoir une fourche entre les dents de laquelle est placé le câble.To achieve good guidance of the cable to be connected, the means preferably have a window in which can pass this cable. In some configurations, it may be sufficient to have a fork between the teeth of which the cable is placed.

Afin de limiter le nombre de pièces du dispositif et faciliter ainsi son montage, les moyens de déplacement et les moyens permettant de dénuder localement le câble sont avantageusement réalisés sur une même pièce.In order to limit the number of parts of the device and thus facilitate its mounting, the means of movement and the means for strip the cable locally are advantageously made on the same room.

Dans ce cas, le dispositif selon l'invention présente par exemple une pièce réalisée dans une lame élastique repliée de telle sorte que ses deux extrémités soient sensiblement parallèles l'une par rapport à l'autre, une première extrémité étant munie de deux lèvres de dénudage et l'autre extrémité étant munie de moyens d'entraínement du câble, tels par exemple une fenêtre.In this case, the device according to the invention has for example a part made in an elastic blade folded so that its two ends are substantially parallel to each other, one end being provided with two stripping lips and the other end end being provided with cable drive means, such as example a window.

La lame élastique, du côté des lèvres de dénudage, repose alors de préférence sur la pièce conductrice dont elle épouse la forme, les lèvres de dénudage étant inclinées par rapport à la lame élastique de telle sorte que la partie dénudante de ces lèvres se trouve bien en face de la fente de la pièce conductrice. On arrive ainsi à réaliser un bon positionnement relatif entre les lèvres de dénudage et la pièce conductrice. Ceci est important pour que la partie dénudée par les lèvres se trouve bien au niveau des bords de la fente réalisée dans la pièce conductrice, garantissant de cette façon un bon contact entre la partie dénudée et la pièce conductrice.The elastic blade, on the side of the stripping lips, then rests preferably on the conductive part whose shape it follows, the lips stripping being tilted relative to the elastic blade so that the stripping part of these lips is well in front of the slot of the conductive part. We thus achieve a good positioning relative between the stripping lips and the conductive part. this is important so that the part exposed by the lips is well at level of the edges of the slot made in the conductive part, thus ensuring good contact between the stripped part and the conductive part.

Pour améliorer le guidage du câble durant le dénudage, les moyens d'entraínement du câble comportent de préférence des ergots de guidage reprenant sensiblement la forme des lèvres de dénudage.To improve cable guidance during stripping, the cable drive means preferably include lugs guide substantially resuming the shape of the stripping lips.

Pour réaliser une bonne connexion électrique, la fente destinée à recevoir le câble à connecter présente avantageusement une ouverture en forme de V et est prolongée, du côté de la pointe du V, par deux bords sensiblement parallèles.To make a good electrical connection, the slot intended receiving the cable to be connected advantageously has an opening V-shaped and is extended, on the tip of the V, by two edges substantially parallel.

La présente invention concerne également un bornier de connexion comportant un boítier isolant et une pièce conductrice destinée à être reliée électriquement à au moins un câble électrique, bornier qui est muni d'au moins un dispositif de connexion auto-dénudant tel que décrit ci-dessus.The present invention also relates to a terminal block of connection comprising an insulating box and a conductive part intended to be electrically connected to at least one electrical cable, terminal block which is provided with at least one self-stripping connection device as described above.

De toute façon, l'invention sera bien comprise à l'aide de la description qui suit, en référence au dessin schématique annexé, représentant à titre d'exemple non limitatif une forme de réalisation préférentielle d'un dispositif selon l'invention.

  • Figure 1 est une vue en perspective éclatée d'un bornier comportant deux dispositifs de connexion selon l'invention,
  • Figure 2 est une vue en perspective à échelle agrandie d'un ressort utilisé pour un dispositif de connexion selon l'invention,
  • Figure 3 est une vue de dessus d'une pièce conductrice, et Figures 4 à 6 sont des vues de face du bornier de la figure 1 au cours de trois étapes de la connexion d'un câble.
    • In any case, the invention will be clearly understood with the aid of the description which follows, with reference to the appended schematic drawing, representing by way of nonlimiting example a preferred embodiment of a device according to the invention.
  • FIG. 1 is an exploded perspective view of a terminal block comprising two connection devices according to the invention,
  • FIG. 2 is a perspective view on an enlarged scale of a spring used for a connection device according to the invention,
  • Figure 3 is a top view of a conductive part, and Figures 4 to 6 are front views of the terminal block of Figure 1 during three stages of the connection of a cable.

    • La figure 1 montre un bornier équipé de deux dispositifs de connexion. Ce bornier comporte un boítier isolant 2, deux ressorts 4, ainsi qu'une pièce conductrice 6.Figure 1 shows a terminal block fitted with two connection. This terminal block includes an insulating housing 2, two springs 4, as well than a conductive part 6.

    Le boítier isolant 2 est une pièce en matière synthétique obtenue par exemple par moulage. La forme de sa base est telle qu'elle puisse venir se fixer sur des rails de fixation normalisés prévus à cet effet. Un logement 8 est prévu pour chaque ressort 4 et chaque extrémité de la pièce conductrice 6. La face supérieure du boítier 2 présente au niveau de chaque logement à chaque fois une ouverture 10 destinée à recevoir un câble à connecter et une ouverture 12 destinée à recevoir la lame d'un tournevis.The insulating housing 2 is a piece of synthetic material obtained for example by molding. The shape of its base is such that it can be fixed on standard fixing rails provided for this purpose. A housing 8 is provided for each spring 4 and each end of the conductive part 6. The upper face of the housing 2 has at each housing each time an opening 10 intended to receive a cable to be connected and an opening 12 intended to receive the blade of a screwdriver.

    La pièce conductrice 6 est représentée en perspective sur la figure 1 et en vue de dessus sur la figure 3. Cette pièce 6 peut recevoir deux câbles électriques, un à chacune de ses extrémités. Cette pièce conductrice 6 est réalisée à partir d'une lame métallique, par exemple en cuivre.The conductive part 6 is shown in perspective on the Figure 1 and in top view in Figure 3. This part 6 can receive two electric cables, one at each end. This piece conductive 6 is made from a metal blade, for example by copper.

    À chaque extrémité de la lame est réalisée une fente 14 dont la forme est visible sur la figure 3. Chaque fente 14 est réalisée sur l'axe médian longitudinal de la lame. À l'extrémité de la lame, la fente 14 présente une zone 16 en forme de V, la pointe du V se situant à l'intérieur de la lame. La fente 14 se prolonge par une zone 18 dans laquelle les bords de la fente sont sensiblement parallèles. Ainsi, chaque extrémité de la pièce conductrice se présente sous la forme d'une fourche dont chaque bras présente une certaine élasticité, grâce à laquelle la fente 14 peut recevoir des câbles de différents diamètres tout en garantissant un excellent contact électrique.At each end of the blade is made a slot 14 whose shape is visible in Figure 3. Each slot 14 is formed on the axis longitudinal median of the blade. At the end of the blade, the slot 14 has a V-shaped zone 16, the point of the V being inside of the blade. The slot 14 is extended by a zone 18 in which the edges of the slot are substantially parallel. So each end of the conductive part is in the form of a fork each of which arm has a certain elasticity, thanks to which the slot 14 can receive cables of different diameters while ensuring a excellent electrical contact.

    Les bords de la fente 14, tant au niveau de la zone 16 en V qu'au niveau de la zone 18 où les bords sont parallèles, sont amincis. Cet amincissement ne confère pas à la fente de fonction de découpe mais est réalisée pour s'adapter aux dimensions de la découpe qui est réalisée au niveau des ressorts 4 et qui sera décrite plus loin.The edges of the slot 14, both at the level of the V-shaped zone 16 that at the level of the zone 18 where the edges are parallel, are thinned. This thinning does not give the slot a cutting function but is made to fit the dimensions of the cutout that is made at level of the springs 4 and which will be described later.

    La lame constituant la pièce conductrice 6, une fois munie à chacune de ses extrémités d'une fente 14, est ensuite pliée de manière à présenter à chacune de ses extrémités une forme rappelant un col de cygne, telle qu'on peut la voir par exemple sur la figure 1.The blade constituting the conductive part 6, once provided with each of its ends of a slot 14, is then folded so as to present at each of its ends a shape reminiscent of a collar swan, as we can see it for example in figure 1.

    Une languette 20 est réalisée sensiblement au milieu de la pièce conductrice afin de permettre son encliquetage dans le boítier isolant 2.A tongue 20 is produced substantially in the middle of the part conductive to allow it to snap into the insulating housing 2.

    La figure 2 montre plus en détail un ressort 4. Un tel ressort est formé à partir d'une lame élastique qui peut être, elle aussi par exemple en cuivre. Cette lame élastique est repliée de manière à former un ressort. La largeur de la lame élastique utilisée est sensiblement égale à la largeur de la lame utilisée pour réaliser la pièce conductrice 6. Après le pliage, les deux extrémités de la lame élastique sont sensiblement parallèles l'une à l'autre. La zone centrale de la lame élastique est pliée de manière à former un arc de cercle sur un peu plus de 180°. Ainsi, les extrémités sensiblement parallèles du ressort peuvent se déplacer élastiquement l'une par rapport à l'autre. En position de repos, représentée sur la figure 1 par exemple, les deux extrémités de la lame élastique sont décalées l'une par rapport à l'autre.Figure 2 shows in more detail a spring 4. Such a spring is formed from an elastic blade which can also be, for example, copper. This elastic blade is folded so as to form a spring. The width of the elastic blade used is substantially equal to the width of the blade used to make the conductive part 6. After folding, the two ends of the elastic blade are substantially parallel to each other the other. The central area of the elastic blade is folded so as to form an arc of a circle over a little more than 180 °. So the ends substantially parallel to the spring can move elastically one compared to each other. In the rest position, represented in FIG. 1 by example, the two ends of the elastic blade are offset one by compared to each other.

    Une première extrémité de la lame élastique est pliée de manière à pouvoir venir épouser la forme en col de cygne d'une extrémité de la pièce conductrice 6. Comme on le voit sur les figures 4 à 6, chaque ressort 4 vient prendre place dans son logement 8 sur une extrémité de la pièce conductrice 6. La partie centrale arrondie du ressort 4 est placée à la base de la forme en col de cygne d'une extrémité de la pièce conductrice 6. Le ressort 4 épouse la face supérieure de toute l'extrémité en forme de col de cygne de la pièce conductrice 6 et une extrémité de ce ressort dépasse de la pièce conductrice 6. L'autre extrémité du ressort 4 vient se placer au-dessus de cette première extrémité.A first end of the elastic blade is folded so you can come and take the swan neck shape from one end of the conductive part 6. As can be seen in FIGS. 4 to 6, each spring 4 comes to take place in its housing 8 on one end of the conductive part 6. The rounded central part of the spring 4 is placed at the base of the swan neck shape of one end of the conductive part 6. The spring 4 follows the upper face of the whole end in the form of gooseneck of the conductive part 6 and one end of this spring protrudes from the conductive part 6. The other end of the spring 4 comes place over this first end.

    L'extrémité du ressort 4 qui repose sur la pièce conductrice 6 est munie d'une fenêtre 22. Du côté de l'extrémité du ressort 4, cette fenêtre 22 présente un espace 24 de taille suffisante pour recevoir un câble électrique à connecter. À l'intérieur de la fenêtre 22, se trouve également deux lèvres dénudantes 26. Ces lèvres 26 s'étendent dans une direction transversale par rapport à la lame élastique formant le ressort 4 et sont inclinées à l'opposé de l'autre extrémité du ressort. Ainsi, ces lèvres font saillie de la lame élastique du côté de la pièce conductrice 6 lorsque le ressort 4 est monté sur cette pièce conductrice 6 (figures 4 à 6). Les extrémités des lèvres 26 sont espacées l'une de l'autre de manière à découper la gaine isolante d'un câble électrique qui se déplace longitudinalement par rapport à la lame élastique formant le ressort 4 sans abímer l'âme conductrice de ce câble. La fenêtre 22 présente aussi un espace 28 destiné à recevoir un câble une fois que celui-ci a été localement dénudé par les lèvres dénudantes 26. The end of the spring 4 which rests on the conductive part 6 is provided with a window 22. On the side of the end of the spring 4, this window 22 has a space 24 of sufficient size to receive a electric cable to connect. Inside window 22 is also two stripping lips 26. These lips 26 extend in a transverse direction relative to the elastic blade forming the spring 4 and are inclined opposite the other end of the spring. So these lips protrude from the elastic blade on the side of the conductive part 6 when the spring 4 is mounted on this conductive part 6 (FIGS. 4 to 6). The ends of the lips 26 are spaced apart from each other so to cut the insulating sheath of an electric cable which moves longitudinally relative to the elastic blade forming the spring 4 without damage the conductive core of this cable. Window 22 also shows a space 28 intended to receive a cable once it has been locally stripped by stripped lips 26.

    Le ressort 4 est placé sur la pièce conductrice 6 de telle sorte que les lèvres dénudantes 26 viennent buter contre l'extrémité de la pièce conductrice 6. Les lèvres 26 se trouvent alors en face de la fente 14. On veille à ce que la zone dénudante des lèvres 26 se trouve à hauteur des bords amincis de la fente 14.The spring 4 is placed on the conductive part 6 so that that the stripping lips 26 abut against the end of the part conductive 6. The lips 26 are then in front of the slot 14. We ensures that the stripping area of the lips 26 is at the level of the thinned edges of the slot 14.

    L'autre extrémité du ressort 4 est également munie d'une fenêtre 30. Cette dernière est destinée à recevoir un câble électrique à connecter et à guider celui-ci pour le faire passer de l'espace 24 de la première fenêtre 22 à travers les lèvres dénudantes 26 pour l'amener dans l'espace 28 destiné à recevoir un câble connecté. La fenêtre 30 présente une forme sensiblement carrée présentant deux bords longitudinaux et deux bords transversaux par rapport à la lame élastique formant le ressort 4. Les deux bords transversaux sont chacun munis d'un ergot 32. Chaque ergot 32 s'étend vers l'autre extrémité du ressort 4. Ces ergots reprennent sensiblement la forme des lèvres dénudantes 26. On a ainsi des ergots en forme de V, chaque branche du V étant inclinée sensiblement de la même manière que sont inclinées les lèvres 26. De cette manière, les ergots 32 permettent un bon guidage d'un câble à connecter pour faire passer ce câble entre les lèvres dénudantes 26. Le câble à dénuder et à connecter est alors guidé sur toute la hauteur de l'ergot et non pas simplement sur l'épaisseur de la lame élastique 4.The other end of the spring 4 is also provided with a window 30. The latter is intended to receive an electric cable to connect and guide it to get it from space 24 of the first window 22 through the stripping lips 26 to bring it into the space 28 intended to receive a connected cable. Window 30 shows a substantially square shape with two longitudinal edges and two edges transverse to the elastic blade forming the spring 4. The two transverse edges are each provided with a lug 32. Each lug 32 extends towards the other end of the spring 4. These lugs resume substantially the shape of the stripping lips 26. There are thus lugs in V shape, each branch of the V being inclined substantially the same so that the lips 26 are inclined. In this way, the pins 32 allow good guidance of a cable to be connected to pass this cable between the stripping lips 26. The cable to be stripped and connected is then guided over the entire height of the lug and not just on the thickness of the elastic blade 4.

    En position de repos du ressort 4, la fenêtre 30 se trouve sensiblement au-dessus de l'espace 28 de la fenêtre 22. En position précontrainte, la fenêtre 30 se trouve au-dessus de l'espace 24 de la fenêtre 22. Une languette 34 est prévue sur chaque ressort 4 afin de bien maintenir celui-ci sur la pièce conductrice 6. La languette 34 peut par exemple coopérer avec l'extrémité d'une fente 14 opposée à l'extrémité présentant une zone 16 en forme de V.In the rest position of the spring 4, the window 30 is substantially above the space 28 of the window 22. In position window 30 is located above space 24 of the window 22. A tongue 34 is provided on each spring 4 in order to properly hold it on the conductive part 6. The tongue 34 can by example cooperate with the end of a slot 14 opposite the end having a V-shaped zone 16

    La figure 4 montre une pièce conductrice 6 et deux ressorts 4 au repos dans le boítier isolant 2. Les ressorts 4 et les extrémités en forme de col de cygne de la pièce conductrice 6 sont chacun placé dans un logement 8. Pour un bon positionnement de ces pièces, des butées 36 sont prévues à l'intérieur des logements 8. On a ainsi une butée 36 placée à l'intérieur de l'arrondi du ressort 4 et une autre butée 36 permettant le bon positionnement d'une extrémité de la pièce conductrice 6.Figure 4 shows a conductive part 6 and two springs 4 at rest in the insulating housing 2. The springs 4 and the shaped ends of the swan neck of the conductive part 6 are each placed in a housing 8. For proper positioning of these parts, stops 36 are provided inside the housings 8. There is thus a stop 36 placed inside the rounding of the spring 4 and another stop 36 allowing the correct positioning of one end of the conductive part 6.

    Le fonctionnement d'un dispositif de connexion selon l'invention est décrit ci-après en référence aux figures 4 à 6.The operation of a connection device according to the invention is described below with reference to FIGS. 4 to 6.

    La figure 4 montre les deux dispositifs de connexion en position de repos. Chaque espace 24 destiné à recevoir un câble à connecter se trouve face à une ouverture 10 du boítier. Les fenêtres 30 pour le déplacement d'un câble sont effacées par rapport à ces ouvertures 10. Une première opération à effectuer pour permettre la connexion d'un câble est de précontraindre le ressort 4. Ceci est réalisé en introduisant l'extrémité d'un outil, par exemple une lame de tournevis, à travers une ouverture 12 du boítier 2. La lame 38 du tournevis rencontre le ressort 4 et est déviée vers une paroi 40 du logement 8. La forme de cette paroi 40 est telle qu'en enfonçant à fond le tournevis dans l'ouverture 12 jusqu'à ce que la lame 38 du tournevis vienne au fond du logement 8, ou plus précisément vienne en butée contre la pièce conductrice 6, le ressort soit déformé de telle sorte que la fenêtre 30 du ressort vienne face à l'espace 24 de la fenêtre 22 du ressort destiné à recevoir un câble 42 à connecter.Figure 4 shows the two connection devices in position rest. Each space 24 intended to receive a cable to be connected is located opposite an opening 10 of the housing. Windows 30 for the movement of a cable are erased relative to these openings 10. A first operation to perform to allow the connection of a cable is to prestress the spring 4. This is achieved by introducing the end of a tool, for example a screwdriver blade, through a opening 12 of the housing 2. The blade 38 of the screwdriver meets the spring 4 and is deflected towards a wall 40 of the housing 8. The shape of this wall 40 is such that by fully inserting the screwdriver into opening 12 until that the blade 38 of the screwdriver comes to the bottom of the housing 8, or more precisely comes into abutment against the conductive part 6, the spring either deformed so that the window 30 of the spring faces the space 24 of window 22 of the spring intended to receive a cable 42 to be connected.

    La figure 5 montre le ressort 4 dans sa position précontrainte grâce à l'action de la lame de tournevis 38 et montre également l'extrémité d'un câble 42 qui a été introduite par une ouverture 10 dans le boítier 2. Cette extrémité de câble 42 ne rencontre aucun obstacle et traverse tout d'abord la fenêtre 30 du ressort puis l'espace 24 de la fenêtre 22 de ce ressort. Le câble 42 est constitué d'une âme conductrice et d'une gaine isolante.Figure 5 shows the spring 4 in its preloaded position thanks to the action of the screwdriver blade 38 and also shows the end of a cable 42 which has been introduced through an opening 10 in the box 2. This end of cable 42 encounters no obstacle and first crosses the window 30 of the spring then the space 24 of the window 22 of this spring. The cable 42 consists of a conductive core and an insulating sheath.

    L'extrémité du câble 42 étant maintenant introduite dans le boítier 2, la lame de tournevis 38 peut être retirée de ce boítier 2. Le ressort 4 est alors libéré. L'énergie emmagasinée par ce ressort lors de sa déformation par la lame de tournevis est restituée et sert à faire passer l'extrémité du câble 42 à travers les lèvres de dénudage 26 et à réaliser la connexion au niveau de la pièce conductrice 6. L'extrémité du câble 42 est guidée sur toute la hauteur d'un ergot 32 lorsqu'il passe entre les lèvres 26. Lors du passage entre ces lèvres, la gaine isolante du câble est coupée transversalement à l'axe du câble 42 mettant ainsi à nu localement l'âme conductrice du câble. La forme des lèvres 26 leur donne une élasticité qui leur permet de s'adapter aux diamètres de câbles se trouvant dans une plage de diamètres prédéterminée. Pour chaque diamètre de câble dans cette plage, les lèvres 26 coupent la gaine isolante de manière à mettre à nu localement l'âme conductrice sans toutefois abímer celle-ci. The end of the cable 42 is now introduced into the case 2, the screwdriver blade 38 can be removed from this case 2. The spring 4 is then released. The energy stored by this spring during its deformation by the screwdriver blade is restored and used to pass the end of the cable 42 through the stripping lips 26 and to carry out the connection at the conductive part 6. The end of the cable 42 is guided over the entire height of a lug 32 when it passes between the lips 26. When passing between these lips, the insulating sheath of the cable is cut transversely to the axis of cable 42 thus exposing locally the conductive core of the cable. The shape of the lips 26 gives them a elasticity which allows them to adapt to the diameters of cables found within a predetermined diameter range. For each diameter of cable in this range, the lips 26 cut the insulating sheath so to expose locally the conductive core without damaging it.

    Une fois dénudée, l'extrémité du câble est amenée dans la fente 14 de la pièce conductrice 6. La zone dénudée de l'extrémité du câble 42 coulisse alors à la hauteur des bords amincis de la fente 14. L'extrémité du câble 42 vient se loger à la base de la zone 16 en forme de V. Le ressort n'est alors pas dans sa position de repos. Une contrainte élastique est donc encore exercée sur le câble 42 par l'intermédiaire notamment de l'ergot 32. Cette contrainte favorise un bon contact électrique entre l'âme conductrice du câble 42 et la pièce conductrice 6.Once stripped, the end of the cable is brought into the slot 14 of the conductive part 6. The stripped area of the end of the cable 42 then slides at the level of the thinned edges of the slot 14. The end of the cable 42 is housed at the base of the zone 16 in the form of V. The spring is then not in its rest position. A constraint elastic is therefore still exerted on the cable 42 via including lug 32. This constraint promotes good contact electric between the conductive core of the cable 42 and the conductive part 6.

    Comme il va de soi, l'invention ne se limite pas à la forme de réalisation décrite ci-dessus à titre d'exemple non limitatif ; elle en embrasse au contraire toutes les variantes.It goes without saying that the invention is not limited to the form of embodiment described above by way of nonlimiting example; she in on the contrary embraces all variants.

    Ainsi par exemple, dans la forme de réalisation ci-dessus, les moyens permettant de déplacer l'extrémité du câble à connecter et les moyens permettant de dénuder localement celui-ci sont réalisés sur une même pièce, le ressort. Comme il ressort de la description ci-dessus, on remarque qu'une partie de ce ressort est fixe et ne bouge pas durant toute l'opération de connexion. Il est alors tout-à-fait envisageable d'avoir une pièce fixe au niveau de laquelle serait réalisé le dénudage de l'extrémité du câble et une pièce mobile pour permettre le déplacement de celle-ci.So for example, in the above embodiment, the means for moving the end of the cable to be connected and the means for locally stripping it are carried out on a same piece, the spring. As appears from the description above, we note that part of this spring is fixed and does not move during any the connection operation. It is therefore quite possible to have a fixed part at which the stripping of the end of the cable and a moving part to allow movement thereof.

    Les formes des différents éléments constitutifs du dispositif décrit sont données à titre d'exemple et ne sont pas limitatives. Il s'agit là de formes de réalisation préférentielles. Ainsi, d'autres formes peuvent être choisies pour le ressort, pour les lèvres dénudantes, pour la fenêtre de déplacement, la pièce conductrice, la fente de celle-ci, etc.The shapes of the various components of the device described are given by way of example and are not limiting. This is there preferred embodiments. So other forms can be chosen for the spring, for the stripped lips, for the window displacement, the conductive part, the slot thereof, etc.

    L'application du dispositif de connexion à un autre appareil électrique qu'un bornier est bien entendu également envisageable. Un tel dispositif de connexion peut être utilisé pour la connexion d'un câble à divers types d'appareillages électriques. Ce dispositif peut aussi être utilisé sans présence d'un boítier isolant.Applying the connection device to another device electric than a terminal block is of course also possible. Such connection device can be used for connecting a cable to various types of electrical equipment. This device can also be used without the presence of an insulating box.

    Claims (10)

    Dispositif de connexion auto-dénudant pour un câble électrique constitué d'une âme conductrice et d'une gaine isolante, comportant: une pièce conductrice (6) de connexion qui présente une fente (14) destinée à recevoir le câble (42) à connecter, et des moyens (26) permettant de dénuder localement le câble électrique, caractérisé en ce que les moyens (26) permettant de dénuder localement le câble électrique sont réalisés sur une pièce (4) distincte de la pièce conductrice (6) et font face à la fente (14) de cette dernière, et en ce que des moyens de déplacement (30,32) sont prévus pour déplacer le câble depuis une position d'introduction dans laquelle le câble (42) non dénudé est introduit dans le dispositif vers une position de connexion dans laquelle le câble se trouve dans la fente (14) de la pièce conductrice et dans laquelle l'âme du câble est en contact électrique avec la pièce conductrice (6), le câble passant par les moyens (26) permettant de le dénuder localement au cours de ce déplacement. Self-stripping connection device for an electric cable consisting of a conductive core and an insulating sheath, comprising: a conductive connecting piece (6) which has a slot (14) intended to receive the cable (42) to be connected, and means (26) for locally stripping the electrical cable, characterized in that the means (26) for locally stripping the electric cable are produced on a part (4) distinct from the conductive part (6) and face the slot (14) of the latter, and in that displacement means (30,32) are provided for moving the cable from an insertion position in which the non-stripped cable (42) is introduced into the device towards a connection position in which the cable is in the slot (14) of the conductive part and in which the cable core is in electrical contact with the conductive part (6), the cable passing through the means (26) making it possible to strip it locally during this movement. Dispositif de connexion selon la revendication 1, caractérisé en ce que la pièce conductrice (6) de connexion est montée dans un boítier isolant (2) présentant au moins une ouverture (10) permettant l'introduction du câble à connecter, et en ce que les moyens de déplacement comportent une lame élastique (4) munie de moyens d'entraínement (30,32) du câble électrique, les moyens d'entraínement du câble se trouvant face à la fente (14) de la pièce conductrice (6) dans la position de repos de la lame élastique et face à l'ouverture (10) d'introduction du câble dans le boítier isolant (2) dans la position précontrainte de la lame élastique (4).Connection device according to claim 1, characterized in that the connecting conductive piece (6) is mounted in a insulating housing (2) having at least one opening (10) allowing the introduction of the cable to be connected, and in that the means of displacement comprise an elastic blade (4) provided with means drive (30,32) of the electric cable, the drive means of the cable facing the slot (14) of the conductive part (6) in the rest position of the elastic blade and facing the opening (10) for introducing the cable into the insulating box (2) in the position preload of the elastic blade (4). Dispositif de connexion selon la revendication 2, caractérisé en ce qu'une ouverture (12) est prévue dans le boítier isolant (2) de manière à permettre le passage d'un outil, tel une lame de tournevis (38), pour précontraindre la lame élastique (4).Connection device according to claim 2, characterized in that an opening (12) is provided in the insulating housing (2) of so as to allow the passage of a tool, such as a screwdriver blade (38), to prestress the elastic blade (4). Dispositif de connexion selon l'une des revendications 2 ou 3, caractérisé en ce que les moyens d'entraínement présentent une fenêtre (30) dans laquelle peut passer le câble (42) à connecter. Connection device according to one of claims 2 or 3, characterized in that the drive means have a window (30) through which the cable (42) to be connected can pass. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que les moyens de déplacement (30) et les moyens (26) permettant de dénuder localement le câble (42) sont réalisés sur une même pièce (4).Device according to one of claims 1 to 4, characterized in that the displacement means (30) and the means (26) allowing to locally strip the cable (42) are made on the same piece (4). Dispositif selon la revendication 5, caractérisé en ce qu'il présente une pièce (4) réalisée dans une lame élastique repliée de telle sorte que ses deux extrémités soient sensiblement parallèles l'une par rapport à l'autre, une première extrémité étant munie de deux lèvres (26) de dénudage et l'autre extrémité étant munie de moyens d'entraínement du câble, tels par exemple une fenêtre (30).Device according to claim 5, characterized in that it has a part (4) made in an elastic blade folded in such a way so that its two ends are substantially parallel one by relative to the other, a first end being provided with two lips (26) stripping and the other end being provided with drive means cable, such as a window (30). Dispositif selon la revendication 6, caractérisé en ce que la lame élastique (4), du côté des lèvres (26) de dénudage, repose sur la pièce conductrice (6) dont elle épouse la forme, les lèvres (26) de dénudage étant inclinées par rapport à la lame élastique (4) de telle sorte que la partie dénudante de ces lèvres (26) se trouve bien en face de la fente (14) de la pièce conductrice (6).Device according to claim 6, characterized in that the elastic blade (4), on the side of the stripping lips (26), rests on the conductive part (6) of which it follows the shape, the lips (26) of stripping being inclined relative to the elastic blade (4) so that the stripping part of these lips (26) is indeed opposite the slot (14) of the conductive part (6). Dispositif selon l'une des revendications 6 ou 7, caractérisé en ce que les moyens d'entraínement du câble comportent des ergots (32) de guidage reprenant sensiblement la forme des lèvres (26) de dénudage.Device according to one of claims 6 or 7, characterized in that the cable drive means comprise lugs (32) guide substantially taking the shape of the stripping lips (26). Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que la fente (14) destinée à recevoir le câble à connecter présente une ouverture (16) en forme de V et est prolongée, du côté de la pointe du V, par deux bords sensiblement parallèles.Device according to one of claims 1 to 8, characterized in that the slot (14) intended to receive the cable to be connected has an opening (16) in the shape of a V and is extended, on the side of the point of the V, by two substantially parallel edges. Bornier de connexion comportant un boítier isolant (2) et une pièce conductrice (6) destinée à être reliée électriquement à au moins un câble électrique (42), caractérisé en ce qu'il est muni d'au moins un dispositif de connexion auto-dénudant selon l'une des revendications 1 à 9.Connection terminal block comprising an insulating box (2) and a conductive part (6) intended to be electrically connected to at least one an electric cable (42), characterized in that it is provided with at least one Self-stripping connection device according to one of claims 1 to 9.
    EP99420087A 1998-04-17 1999-04-02 Connection arrangement with insulation displacement connector Expired - Lifetime EP0951094B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9805053 1998-04-17
    FR9805053A FR2777702B1 (en) 1998-04-17 1998-04-17 SELF-STRIPPING CONNECTION DEVICE

    Publications (2)

    Publication Number Publication Date
    EP0951094A1 true EP0951094A1 (en) 1999-10-20
    EP0951094B1 EP0951094B1 (en) 2003-06-11

    Family

    ID=9525554

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP99420087A Expired - Lifetime EP0951094B1 (en) 1998-04-17 1999-04-02 Connection arrangement with insulation displacement connector

    Country Status (5)

    Country Link
    US (1) US6146186A (en)
    EP (1) EP0951094B1 (en)
    DE (1) DE69908700T2 (en)
    ES (1) ES2204087T3 (en)
    FR (1) FR2777702B1 (en)

    Cited By (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE20009541U1 (en) * 2000-05-27 2001-10-11 Weidmueller Interface Connection device for electrical conductors and terminal blocks
    DE10034589A1 (en) * 2000-07-14 2002-01-31 Phoenix Contact Gmbh & Co Electrical connection terminal with insulation penetrating blade, has spring which can be tensioned to allow insertion of wire
    WO2007119068A2 (en) * 2006-04-18 2007-10-25 Bernardino De Bernardis Improvements in and relating to connectors

    Families Citing this family (20)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2803440B1 (en) * 2000-01-04 2002-08-16 Entrelec Sa SPRING FOR FIXING A TERMINAL BLOCK OR THE LIKE ON A RAIL
    FR2809537B1 (en) * 2000-05-24 2003-09-26 Entrelec Sa CONNECTION SPRING
    DE10036718B4 (en) * 2000-07-27 2004-10-21 Siemens Ag Piercing means
    ATE496406T1 (en) * 2002-04-12 2011-02-15 Weidmueller Interface CONNECTION DEVICE FOR CONDUCTORS
    US20050090159A1 (en) * 2003-10-28 2005-04-28 Luther Robert R. Electrical wiring device
    US7090530B1 (en) * 2005-09-22 2006-08-15 Dibble Howard A Quick connect electrical box
    FR2902239B1 (en) * 2006-06-09 2008-11-28 Legrand France SELF-CONDUCTING CONNECTION TERMINAL OF AN ISOLATED ELECTRICAL CONDUCTOR AND ELELECTRIC DEVICE COMPRISING SUCH A TERMINAL
    DE102010014615B4 (en) * 2010-04-10 2012-08-09 Tyco Electronics Nederland B.V. Connection terminal with cutting device for an electric cable
    DE202010014149U1 (en) * 2010-10-09 2012-01-10 Woertz Ag Electrical connection terminal
    DE102011115637B4 (en) * 2011-06-21 2014-03-27 Phoenix Contact Gmbh & Co. Kg Electrical connection terminal
    DE102011054418B4 (en) * 2011-10-12 2015-01-22 Phoenix Contact Gmbh & Co. Kg Spring body of a spring clamp and Federkraftklemmanordnung
    DE102011054425A1 (en) * 2011-10-12 2013-04-18 Phoenix Contact Gmbh & Co. Kg Spring element for spring force clamping assembly, has clamping arm which is formed in U-shape and provided with free end portion that is projected into through opening of support leg
    CA2939551C (en) * 2014-02-13 2021-06-08 Ellenberger & Poensgen Gmbh Thermal overcurrent circuit breaker
    TWI605652B (en) * 2016-05-16 2017-11-11 Wire connection terminal device
    DE102016111536A1 (en) * 2016-06-23 2017-12-28 Wago Verwaltungsgesellschaft Mbh Contact insert of a spring-loaded connection terminal and thus formed spring-force connection terminal
    TWI645634B (en) * 2017-05-08 2018-12-21 進聯工業股份有限公司 Conductive component structure for wire connection terminals
    TWD188672S (en) * 2017-05-08 2018-02-21 進聯工業股份有限公司 Wire connection terminal housing
    JP1623420S (en) * 2018-03-14 2019-02-04
    JP1623945S (en) * 2018-03-14 2019-02-04
    US10511108B1 (en) * 2019-01-07 2019-12-17 Dinkle Enterprise Co., Ltd. Dual-wire connector

    Citations (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE2023170A1 (en) * 1970-05-12 1971-12-02 Krone Gmbh Switchable electrical terminal connection
    US4752237A (en) * 1987-07-27 1988-06-21 Amp Incorporated Solderless connector
    DE3818548A1 (en) * 1988-05-31 1989-12-07 Quante Ag Connecting contact device

    Family Cites Families (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2503464A1 (en) * 1981-04-03 1982-10-08 Alsthom Cgee JUNCTION BLOCK WITH ELECTRICAL CONNECTION WITHOUT STRIPPING
    DE3514099C2 (en) * 1985-04-16 1994-11-17 Wago Verwaltungs Gmbh Connection clamp for electrical conductors
    FR2598039B1 (en) * 1986-04-28 1990-09-21 Alsthom Cgee SLOT CONNECTION ARRANGEMENT FOR ELECTRIC WIRE AND CORRESPONDING CONNECTION TOOL END CAP
    US4769703A (en) * 1987-05-08 1988-09-06 Rca Licensing Corporation Apparatus for aligning an image display device in a video signal processing and display system
    DE4438800C1 (en) * 1994-10-31 1996-01-18 Weidmueller Interface Connection terminal block for electronic modules
    DE19541137A1 (en) * 1995-10-30 1997-05-07 Wago Verwaltungs Gmbh Terminal with cut-and-grip contacts for front of insulating housing
    US5816867A (en) * 1996-08-22 1998-10-06 Allen Bradley Company, Llc Curved wire spring clamp with optimized bending stress distribution

    Patent Citations (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE2023170A1 (en) * 1970-05-12 1971-12-02 Krone Gmbh Switchable electrical terminal connection
    US4752237A (en) * 1987-07-27 1988-06-21 Amp Incorporated Solderless connector
    DE3818548A1 (en) * 1988-05-31 1989-12-07 Quante Ag Connecting contact device

    Cited By (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE20009541U1 (en) * 2000-05-27 2001-10-11 Weidmueller Interface Connection device for electrical conductors and terminal blocks
    DE10034589A1 (en) * 2000-07-14 2002-01-31 Phoenix Contact Gmbh & Co Electrical connection terminal with insulation penetrating blade, has spring which can be tensioned to allow insertion of wire
    DE10034589C2 (en) * 2000-07-14 2002-12-12 Phoenix Contact Gmbh & Co Terminal for electrical conductors
    WO2007119068A2 (en) * 2006-04-18 2007-10-25 Bernardino De Bernardis Improvements in and relating to connectors
    WO2007119068A3 (en) * 2006-04-18 2008-08-14 Bernardis Bernardino De Improvements in and relating to connectors

    Also Published As

    Publication number Publication date
    US6146186A (en) 2000-11-14
    DE69908700T2 (en) 2004-01-15
    FR2777702B1 (en) 2000-06-16
    DE69908700D1 (en) 2003-07-17
    ES2204087T3 (en) 2004-04-16
    EP0951094B1 (en) 2003-06-11
    FR2777702A1 (en) 1999-10-22

    Similar Documents

    Publication Publication Date Title
    EP0951094B1 (en) Connection arrangement with insulation displacement connector
    EP0243887A1 (en) Connection arrangement with a stripping slot for an electrical wire
    WO1996014671A1 (en) Electrical connector for an electronic smart card comprising insulator moving type electrical connection means
    EP0691706B1 (en) Electric connection module with connection piece having cable retaining means with insulation displacing slot
    EP0208233B1 (en) Built-in self-stripping connector assembly for electrical equipment and its connecting tool
    FR2804797A1 (en) SELF-CONDUCTING CONNECTION DEVICE FOR TWO ELECTRIC CABLES
    EP0684662A1 (en) Insulation displacement connector
    FR2899023A1 (en) Electrical conductor connecting system for use in e.g. shop, has conductor positioned such that button when manually pressed from outside compresses conductor on edge to provide contact of metal cable of conductor with terminal contact
    CA2293179C (en) Connection spring
    FR2782194A1 (en) SELF-STRIPPING CONNECTION DEVICE
    EP3227966B1 (en) Electrical connection element penetrating an electrical wire insulation sheath
    EP2135326B1 (en) Conducting device for the electric contact of a conductor shielding sheath
    FR2792118A1 (en) METHOD AND DEVICE FOR INTERCONNECTING TERMINALS
    EP0969554B1 (en) Connection terminal with two connection devices
    FR2703192A1 (en) Assembly of a plug connector and a coaxial cable plug.
    EP0062579B1 (en) Connection device
    EP2503644B1 (en) Electrical device of terminal block type
    EP1928058B1 (en) Automatic electrical connection terminal
    FR2465329A1 (en) Connector for flat cable - has contact forks with slits accommodating conductors when cable is pushed down
    EP0662737B1 (en) Slotted connecting arrangement for an electric cable connected to a contact element in a box
    FR2764125A1 (en) SLOT CONNECTION PIECE FOR CONNECTION ARRANGEMENT FOR AT LEAST ONE ELECTRIC WIRE
    FR2857511A1 (en) Conducting unit e.g. electrical wire, connecting terminal, has followers to follow movement of deformable unit from insertion position to rest position so that strip is returned to guiding position when unit is in rest position
    EP0148037B1 (en) Contact connection device and a method of mounting said contacts in the device
    FR2602617A1 (en) Device for fitting a terminal lug or any other connection element to an end of an electrical cable
    EP1496575B1 (en) Contact

    Legal Events

    Date Code Title Description
    PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

    Free format text: ORIGINAL CODE: 0009012

    AK Designated contracting states

    Kind code of ref document: A1

    Designated state(s): DE ES FR GB IT

    AX Request for extension of the european patent

    Free format text: AL;LT;LV;MK;RO;SI

    17P Request for examination filed

    Effective date: 20000207

    AKX Designation fees paid

    Free format text: DE ES FR GB IT

    17Q First examination report despatched

    Effective date: 20000929

    GRAG Despatch of communication of intention to grant

    Free format text: ORIGINAL CODE: EPIDOS AGRA

    GRAG Despatch of communication of intention to grant

    Free format text: ORIGINAL CODE: EPIDOS AGRA

    GRAH Despatch of communication of intention to grant a patent

    Free format text: ORIGINAL CODE: EPIDOS IGRA

    GRAH Despatch of communication of intention to grant a patent

    Free format text: ORIGINAL CODE: EPIDOS IGRA

    GRAA (expected) grant

    Free format text: ORIGINAL CODE: 0009210

    AK Designated contracting states

    Designated state(s): DE ES FR GB IT

    REG Reference to a national code

    Ref country code: GB

    Ref legal event code: FG4D

    Free format text: NOT ENGLISH

    REF Corresponds to:

    Ref document number: 69908700

    Country of ref document: DE

    Date of ref document: 20030717

    Kind code of ref document: P

    GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

    Effective date: 20031018

    RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

    Owner name: ABB ENTRELEC

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: CJ

    Ref country code: FR

    Ref legal event code: CD

    Ref country code: FR

    Ref legal event code: CA

    PLBE No opposition filed within time limit

    Free format text: ORIGINAL CODE: 0009261

    REG Reference to a national code

    Ref country code: ES

    Ref legal event code: FG2A

    Ref document number: 2204087

    Country of ref document: ES

    Kind code of ref document: T3

    STAA Information on the status of an ep patent application or granted ep patent

    Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

    26N No opposition filed

    Effective date: 20040312

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: ES

    Payment date: 20090428

    Year of fee payment: 11

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: GB

    Payment date: 20090421

    Year of fee payment: 11

    GBPC Gb: european patent ceased through non-payment of renewal fee

    Effective date: 20100402

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: GB

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20100402

    REG Reference to a national code

    Ref country code: ES

    Ref legal event code: FD2A

    Effective date: 20110718

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: ES

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20110706

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: ES

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20100403

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: IT

    Payment date: 20110422

    Year of fee payment: 13

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: IT

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20120402

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: DE

    Payment date: 20130419

    Year of fee payment: 15

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: FR

    Payment date: 20130515

    Year of fee payment: 15

    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: R119

    Ref document number: 69908700

    Country of ref document: DE

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: ST

    Effective date: 20141231

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: DE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20141101

    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: R119

    Ref document number: 69908700

    Country of ref document: DE

    Effective date: 20141101

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: FR

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20140430