EP0656672B1 - Réglette de raccordement pour raccorder des fils sans dénudage - Google Patents

Réglette de raccordement pour raccorder des fils sans dénudage Download PDF

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Publication number
EP0656672B1
EP0656672B1 EP94118691A EP94118691A EP0656672B1 EP 0656672 B1 EP0656672 B1 EP 0656672B1 EP 94118691 A EP94118691 A EP 94118691A EP 94118691 A EP94118691 A EP 94118691A EP 0656672 B1 EP0656672 B1 EP 0656672B1
Authority
EP
European Patent Office
Prior art keywords
contact
slot
contact slot
plane
connecting strip
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.)
Expired - Lifetime
Application number
EP94118691A
Other languages
German (de)
English (en)
Other versions
EP0656672A1 (fr
Inventor
Horst-Helmut Tenham
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.)
3M Deutschland GmbH
Original Assignee
Quante GmbH
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 Quante GmbH filed Critical Quante GmbH
Publication of EP0656672A1 publication Critical patent/EP0656672A1/fr
Application granted granted Critical
Publication of EP0656672B1 publication Critical patent/EP0656672B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • H01R4/242—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 being plates having a single slot
    • H01R4/2425—Flat plates, e.g. multi-layered flat plates
    • H01R4/2429—Flat plates, e.g. multi-layered flat plates mounted in an insulating base
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/5833—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable the cable being forced in a tortuous or curved path, e.g. knots in cable

Definitions

  • the invention relates to a terminal strip for stripping-free contacting of wires according to the preamble of claim 1.
  • the "contact slot plane” should be understood to mean the central plane parallel to the top and bottom of the plate-shaped material, which runs through the contact slot before any possible bending or deformation on the plate-shaped material to produce the finished contact.
  • an insulation displacement contact is known, the contact end of which is plate-shaped, the contact end being arranged in the associated terminal block at right angles to the longitudinal axis of the wire to be connected.
  • Corresponding contacts the contact ends of which are arranged in a terminal strip at an angle of 45 ° to the longitudinal axis of the wire to be connected, are described in DE-GBMS 78 37 489 and DE-PS 33 12 754.
  • DE-OS 30 21 798 a double contact is known, which is formed in that a flat contact material with two parallel spaced contact slots is bent in the middle between the two contact slots around the longitudinal axis of the contact to form a V-shaped angle element.
  • the clamping legs are the aforementioned Insulation displacement contacts are designed to be relatively wide and these known contact arrangements therefore lead to constructions which are space-consuming in the direction of rotation of the terminal block. Therefore, the grid dimension for contacts arranged side by side is relatively wide.
  • V-shaped insulation displacement contact elements are known in cross-section, which are comparable in their basic structure to the V-shaped contacts described above, but in this V-shaped contact element a single wire to be connected is contacted twice.
  • Comparable contact elements with a W-shaped cross section are known from GB 21 60 372 A. Here the two additional outer legs are used to form wire stretches. Because of the multiple contacting of one wire, both solutions are material and space-consuming.
  • DE-OS 30 44 888 Another known design of an insulation displacement contact is described in DE-OS 30 44 888. It is a free-standing contact element that is Z-shaped in cross section. A slot is provided in each of the two free legs of the Z-shaped contact to catch the wire to be connected. The slanted connecting web of the contact contains the contact slot, the contact slot plane running at 45 ° to the longitudinal axis of the wire. This insulation displacement contact is space-consuming in the longitudinal direction of the wire and is also comparatively expensive in terms of material.
  • DE-GBMS 77 25 705 discloses a connector strip on which two housing halves which can be folded open are attached in an articulated manner.
  • contact elements are provided next to one another in an alternating staggered arrangement in order to contact the individual wires of an inserted ribbon cable without stripping when the two housing halves are folded between the two halves.
  • the contact elements each have two fork-shaped teeth at their ends, between which the wire is inserted in order to cut through the insulation of the conductor and to contact it.
  • the respective contact ends In cross-section, the respective contact ends have an S-shaped course, the contact slot plane being arranged at an angle of 45 ° to the longitudinal axis of the wire to be connected. Similar to the previously described solution with a Z-shaped contact element, this solution is comparatively expensive in terms of material and space-consuming in the longitudinal direction of the wire.
  • a generic terminal block is known from DE-PS 31 37 429, the connection contacts having two or more insulation displacement contact ends arranged next to one another, which are connected to one another by cross-sections U-shaped connecting webs.
  • Each contact end has a flat central area on both sides of the contact slot, with the contact slot plane around Is inclined at 45 ° to the longitudinal axis of a wire to be connected.
  • the two longitudinal end regions of each contact end are bent in opposite directions out of the contact slot plane.
  • the problem underlying the invention is to create a terminal strip for stripping-free contacting of wires, the connection contacts of which can be produced with insulation displacement contact ends with the least possible use of material and enable contacting of wires in the narrowest possible grid dimension.
  • the contact legs are each bent directly next to the contact slot.
  • the contact legs are bent on both sides of the contact slot while observing the minimum bending radius of the plate-shaped material from which the connection contact with one or more insulation displacement contacts is made.
  • the contact legs are bent in opposite directions by 90 ° with respect to the contact slot plane, in each case by an axis substantially parallel to the contact slot.
  • the inventive design of the insulation displacement contact ends is particularly material-saving, since on both sides next to the contact slot, no material is unnecessarily used in the direction of the contact slot plane, but rather the bend the contact leg starts immediately next to the contact slot.
  • the deflection is optimized by observing the minimum bending radius of the material so that the bending of the contact legs takes place in as small a space as possible in order to keep the expansion of the insulation displacement contact end in the direction of the contact slot plane transverse to the contact slot as small as possible.
  • the insulation displacement contact ends according to the invention can be arranged in a very narrow grid dimension.
  • the minimum bending radius depends on both the type and the thickness of the sheet material.
  • the bending radius is minimized in such a way that the plate-shaped material bends by 90 ° without causing damage to the material in the area of the bend.
  • An expedient embodiment of the insulation displacement contact ends according to the invention is to provide opposite contact surfaces in the contact slot which run perpendicular to the contact slot plane.
  • the contact surfaces of the contact slot run at an angle in the range of 35 ° ⁇ alpha ⁇ 90 ° to the contact slot plane. In particular, an angle of 45 ° is favorable. This oblique arrangement of the contact surfaces with respect to the contact slot plane ensures that a conductor to be contacted of an inserted wire is contacted by the contact surfaces in such a way that the contact surfaces lie flat against the conductor.
  • the contacted conductor in the cross section of the insulation displacement contact end does not run in a straight line through the contact slot, but rather through the flat contacting of the Conductor on the contact surfaces, the conductor sections above and below the contact slot are slightly offset from each other.
  • the resulting torsional forces of the contact legs ensure that the conductor is securely held and contacted between the contact surfaces without indenting the conductor.
  • the contact limbs are designed point-symmetrically in cross section to the contact slot. This symmetrical design leads to uniform contacting forces of the contact legs on the connected conductor.
  • a web of the insulating material housing is arranged between two adjacent insulation displacement contacts.
  • Each insulation displacement contact end lies between two webs which form a wire insertion opening.
  • each wire insertion opening has an area above and an area below the contact slot plane, the areas in cross section each extending perpendicular to the contact slot plane and being offset relative to one another in the direction parallel to the contact slot plane transverse to the contact slot.
  • the offset is such that the two areas of the wire insertion opening are offset in opposite directions to the contact legs of the associated insulation displacement contact end. That is, if the contact limb extends above the contact slot plane in cross section in the direction of the contact slot plane on one side of the contact slot, the corresponding area of the wire insertion opening above the contact slot plane is in cross section of the contact slot to the other side, and the same applies to the contact leg and the area of the wire insertion opening below the contact slot level.
  • the cross-sectional profile of the wire insertion opening is opposite to the cross-sectional profile of the insulation displacement contact end. Due to the opposing curved cross-sectional profiles of the insulation displacement contact ends and the contacted wires, the space requirement of each insulation displacement contact end with connected wire is optimized.
  • wire catches and shear elements for cutting an inserted wire at a certain distance from the contact slot in the wire insertion openings.
  • the two different insulation displacement contact ends 3 are shown here only to illustrate the two design variants together in a terminal strip 1, while normally all insulation displacement contact ends in a terminal strip are either of one type or the other.
  • the insulation displacement contact ends 3 are arranged side by side in a row, the individual insulation displacement contact ends 3 being of identical design and oriented in the same direction parallel to one another.
  • the stringing of the insulation displacement contact ends 3 takes place in a fixed grid with equal distances A between adjacent insulation displacement contacts.
  • the insulation displacement contact ends 3 are accommodated in an insulating material housing 10, two adjacent insulation displacement contact ends each being separated from one another by a web 11. Each insulation displacement contact end 3 is thus arranged between two webs 11. Two adjacent webs 11 each define a wire insertion opening 17 between them, as can be seen better in FIG. 2.
  • the wire insertion openings 17 each have an area 17a above the contact slot level and an area 17b below the contact slot level.
  • the respective contact slot planes 12 are drawn in dashed lines in FIG. 1 for the two right insulation displacement contact ends 3.
  • FIG. 1 for the two insulation displacement contact ends on the right, the plane of symmetry of the insulation displacement contact ends running through the contact slot 5 is shown in dash-dot lines. With respect to this plane of symmetry which runs vertically in FIG.
  • the upper region 17a of the wire insertion opening 17 is laterally offset to the right and the lower region 17b laterally to the left. This offset of the areas 17a, 17b of the wire insertion opening 17 located above and below the contact slot level is opposite to the offset of the contact legs 4 (see FIG. 4) running above and below the contact slot level with respect to the axis of symmetry.
  • a wire 15 is connected to the right-hand insulation displacement contact end 3 of the terminal strip, the conductor 16 of which is contacted in the contact slot 5 between the two contact surfaces 6.
  • a wire 15 is inserted into the wire insertion opening 17 to the left, but not into the contact slot 5, so that the insulation 21 has not yet been cut and the conductor 16 has not yet been contacted.
  • 5 wire catches 13 are arranged below the contact slot, which fix the inserted wire in the wire insertion opening 17.
  • shear areas 14 are provided in each wire insertion opening 17 in order to shear off a contacted wire 15 at a certain distance from the contact point, as shown in FIG. 2 for the right wire.
  • the contacted conductor 16 does not take a straight line, but rather a curved course through the contact slot 5.
  • Fig. 3 shows a connection contact 2, which consists in one piece of a terminal lug 9 and an insulation displacement contact end 3.
  • the insulation displacement contact end 3 has two elongated contact legs 4 which are integrally connected to one another at one end. Between the two contact legs 4, an insertion slot 7 is formed, the width of which corresponds approximately to the diameter of a wire to be connected. This is followed by a contact slot 5 with mutually opposite and mutually parallel contact surfaces 6, the width of the contact slot being somewhat less than the diameter of a conductor 16 to be contacted.
  • the slit-like incision between the both contact legs 4 ends with a circular relief opening 8, which is slightly larger in diameter than the contact slot width.
  • the entire connection contact 2 is made of an electrically conductive metallic plate-shaped material by stamping and bending. Instead of providing only one insulation displacement contact end 3 on the connection contact 2, a connection contact 2 can also be provided with a plurality of insulation displacement contact ends 3 which are integrally connected to one another.
  • Fig. 4 shows the cross section of an insulation displacement contact end 3 according to the invention with an inclined contact slot 5.
  • the contact surfaces 6 of the contact slot 5 each extend at an angle alpha to the contact slot plane 12.
  • the contact slot plane 12 is the central plane of the plate-shaped material, which is parallel to the top and bottom sides the connection contact is made, which runs through the contact slot 5 before any bending or deformation of the plate-shaped material is carried out.
  • the two contact legs 4 are from this original plane of the plate-shaped material, i.e. the contact slot plane 12 shown in dashed lines, in each case bent out in opposite directions by 90 °. As illustrated in FIG.
  • the bending areas of the contact legs 4 begin immediately next to the contact slot 5 and the bending radii correspond to the minimum bending radii which result from the type and thickness of the production material.
  • the free ends 19 of the contact legs 4 run in the direction of the plane 20, i.e. perpendicular to the contact slot plane 12, and the outer edge surfaces 18 of the contact limbs 4 run parallel to the contact slot plane 12.
  • the insulation displacement contact end 3 according to FIG. 4 is cross-sectionally symmetrical to the contact slot 5.
  • the contact slot plane 12 perpendicular to the longitudinal axis of the wire to be inserted.
  • the two free contact leg ends 19 run parallel to the longitudinal axis of the wire to be inserted and therefore do not require any unnecessary space in the direction transverse to the longitudinal axis of the wire.

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Multi-Conductor Connections (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
  • Insulated Conductors (AREA)

Claims (8)

  1. Barrette de connexion (1) destinée à connecter par déplacement d'isolation, des fils, notamment de câbles de télécommunications, de commande et de transmissions de signaux,
    - comportant un boîtier (10) en matériau isolant et
    - plusieurs extrémités de contact à déplacement d'isolation (3), qui sont disposées dans le boîtier (10) en matériau isolant, et sont formées d'un seul tenant avec des contacts de connexion (2), les contacts de connexion (2), qui comportent les extrémités de contact à déplacement d'isolation (3), étant réalisés en un matériau essentiellement en forme de plaque, un plan de fente de contact (12) étant défini par un plan médian qui s'étend, avant d'effectuer d'éventuels pliages ou déformations sur le matériau en forme de plaque en vue de réaliser le contact fini, parallèlement à la face supérieure et à la face inférieure du matériau en forme de plaque, au travers d'une fente de contact (5),
    - chaque extrémité de contact à déplacement d'isolation (3) présentant deux ailes de contact (4), qui sont reliées d'un seul tenant l'une à l'autre à une des extrémités de côté longitudinal, et qui forment entre-elles une fente de contact (5), et
    - les deux extrémités libres longitudinales (19) des ailes de contact (4) étant coudées selon des sens opposés hors du plan de fente de contact (12), en formant pour chacune d'entre-elles, une arête de pliage longitudinale qui s'étend sensiblement de manière parallèle à la fente de contact (5),
    caractérisée en ce que le pliage en sens opposé des ailes de contact (4) est effectué directement à côté de la fente de contact (5), en respectant le rayon de pliage minimum du matériau en forme de plaque, et selon un angle de 90° par rapport au plan de fente de contact (12).
  2. Barrette de connexion selon la revendication 1, caractérisée en ce que la fente de contact (5) présente des surfaces de contact (6) en regard l'une de l'autre, qui s'étendent perpendiculairement au plan de fente de contact (12).
  3. Barrette de connexion selon la revendication 1, caractérisée en ce que la fente de contact (5) présente des surfaces de contact (6) en regard l'une de l'autre, qui forment par rapport au plan de fente de contact (12), un angle alpha compris dans une plage telle, que 35° < alpha < 90°.
  4. Barrette de connexion selon la revendication 3, caractérisée en ce que l'angle prend une valeur de 45°.
  5. Barrette de connexion selon l'une des revendications 1 à 4, caractérisée en ce que les ailes de contact (4) sont conçues, en section transversale, de façon à présenter l'une par rapport à l'autre, une symétrie centrale par rapport à la fente de contact (5).
  6. Barrette de connexion selon l'une des revendications 1 à 5, caractérisée en ce qu'entre chacune de deux extrémités de contact à déplacement d'isolation (3) voisines, est disposée une nervure (11) du boîtier (10) en matériau isolant, deux nervures (11) voisines formant pour l'extrémité de contact à déplacement d'isolation (3) située entre-elles, une ouverture d'introduction de fil (17).
  7. Barrette de connexion selon la revendication 6, caractérisée en ce que l'ouverture d'introduction de fil (17) présente une zone (17a) au-dessus, et une zone (17b) en-dessous du plan de fente de contact (12), qui, en section transversale, s'étendent chacune sensiblement de manière perpendiculaire au plan de fente de contact (12), et qui, dans la direction du plan de fente de contact (12) et transversalement à la fente de contact (5), sont décalées l'une par rapport à l'autre et de façon diamétralement opposée au décalage des ailes de contact (4) coudées de l'extrémité de contact à déplacement d'isolation (3).
  8. Barrette de connexion selon la revendication 6 ou 7, caractérisée en ce que l'ouverture d'introduction de fil (17) présente en section transversale, une symétrie centrale par rapport à la fente de contact (5) associée.
EP94118691A 1993-12-02 1994-11-28 Réglette de raccordement pour raccorder des fils sans dénudage Expired - Lifetime EP0656672B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4341152A DE4341152C1 (de) 1993-12-02 1993-12-02 Anschlußleiste zur abisolierfreien Kontaktierung von Adern
DE4341152 1993-12-02

Publications (2)

Publication Number Publication Date
EP0656672A1 EP0656672A1 (fr) 1995-06-07
EP0656672B1 true EP0656672B1 (fr) 1997-03-05

Family

ID=6504052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94118691A Expired - Lifetime EP0656672B1 (fr) 1993-12-02 1994-11-28 Réglette de raccordement pour raccorder des fils sans dénudage

Country Status (3)

Country Link
EP (1) EP0656672B1 (fr)
AT (1) ATE149745T1 (fr)
DE (2) DE4341152C1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPQ684300A0 (en) * 2000-04-11 2000-05-11 Krone (Australia) Technique Pty Limited Z form insulation displacement contact
FR2810165B1 (fr) 2000-06-09 2006-10-06 Entrelec Sa Dispositif de connexion autodenudante pour un conducteur electrique gaine
GB2387040B (en) * 2002-03-28 2004-03-10 Wheeler & Clinch Ltd A contact
WO2010081186A1 (fr) * 2009-01-19 2010-07-22 Adc Gmbh Connecteur de télécommunications

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3824527A (en) * 1972-08-03 1974-07-16 Amp Inc Wire-in-slot electrical connections
FR2294561A1 (fr) * 1974-12-12 1976-07-09 Metallo Ste Fse Perfectionnements apportes aux connecteurs pour fils isoles
DE2542219A1 (de) * 1975-09-22 1977-03-31 Aumann Vital L Kontaktelement mit zinken fuer elektrische verbindungsklemmen
US4062616A (en) * 1976-08-19 1977-12-13 Amp Incorporated Flat flexible cable connector assembly including insulation piercing contacts
DE7837489U1 (de) * 1978-12-18 1983-12-29 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung für Bandkabel
DE3021798C2 (de) * 1980-06-11 1982-03-11 Krone Gmbh, 1000 Berlin Vorrichtung und Verfahren zur Herstellung eines Doppelkontaktes an einem löt-, schraub- und abisolierfreiem Klemmverbinder
DE3040709A1 (de) * 1980-10-29 1982-06-03 Krone Gmbh, 1000 Berlin Bedienwerkzeug fuer freistehende loet-, schraub- und abisolierfreie kontakte, insbesondere fuer die fernmeldetechnik
DE3044888C2 (de) * 1980-11-28 1984-09-06 Krone Gmbh, 1000 Berlin Freistehendes, befestigbares Anschlußelement in Z-förmiger Ausführung eines LSA-PLUS-Kontaktes
DE3153450C2 (de) * 1981-09-16 1995-01-12 Quante Ag Kabelabschlußeinheit für Fernmelde-, Signal-, Steuerkabel od. dgl.
DE3137429C2 (de) * 1981-09-19 1984-03-22 Krone Gmbh, 1000 Berlin Anschlußeinrichtung in einer Anschlußleiste
DE3312754C1 (de) * 1983-04-09 1984-10-31 Krone Gmbh, 1000 Berlin Vorrichtung mit U-foermigen LSA-PLUS-Anschlusskontakten
US4531804A (en) * 1983-05-26 1985-07-30 General Motors Corporation Insulation shearing electrical terminal
GB2160372A (en) * 1984-06-12 1985-12-18 Hans Simon Insulation-piercing contacts
DE9310365U1 (de) * 1993-07-12 1993-09-30 Quante Ag, 42109 Wuppertal Schneidklemm-Kontaktelement

Also Published As

Publication number Publication date
DE59401930D1 (de) 1997-04-10
ATE149745T1 (de) 1997-03-15
EP0656672A1 (fr) 1995-06-07
DE4341152C1 (de) 1995-03-16

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