EP0532413B1 - Abisolierfreier Kontakt - Google Patents

Abisolierfreier Kontakt Download PDF

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Publication number
EP0532413B1
EP0532413B1 EP19920402465 EP92402465A EP0532413B1 EP 0532413 B1 EP0532413 B1 EP 0532413B1 EP 19920402465 EP19920402465 EP 19920402465 EP 92402465 A EP92402465 A EP 92402465A EP 0532413 B1 EP0532413 B1 EP 0532413B1
Authority
EP
European Patent Office
Prior art keywords
slot
branches
inlet
stamping
contact
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
EP19920402465
Other languages
English (en)
French (fr)
Other versions
EP0532413A1 (de
Inventor
Daniel Hezette
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.)
Nexans Interface SA
Original Assignee
Alcatel Cable Interface
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 Alcatel Cable Interface filed Critical Alcatel Cable Interface
Publication of EP0532413A1 publication Critical patent/EP0532413A1/de
Application granted granted Critical
Publication of EP0532413B1 publication Critical patent/EP0532413B1/de
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

Definitions

  • the present invention relates to insulation displacement contacts for connection of insulated electrical conductors, without prior stripping of these conductors.
  • Such an insulation displacement contact is described in particular in document FR-A 2457 573. It has a simple or double insulation displacement fork and in the latter case of various possible combinations such as head to tail or side by side.
  • the simple insulation displacement fork contact is formed by a conductive part in which a slot defines the two elastic branches of the fork. It is furthermore with an insulated conductor entry into the slot, coupled to one end of said slot by at least one insulating sectioning stage and possibly open on one of the edges of the part, and with elasticity hole of the two branches located at the other end of said slot, on its bottom.
  • the double fork contact side by side can have one of the branches of its forks which is common to them.
  • the spacing of the two branches of each fork is obtained either by local crushing and the resulting displacement of material on one of the two branches, or by two crushing and the resulting displacements of material on one and the other of the two branches.
  • This crushing or the two crushings are carried out near the or two edges of the slot, between its bottom and the insulating sectioning stage, by a punch of circular section. They give rise to a rounded boss on the edge of the single branch concerned or of the two branches, calibrating the spacing of the two branches, in particular.
  • the spacing of the two branches is not symmetrical with respect to the fork axis. This arrangement is troublesome when the conductive wire to be connected is brought into the axis of the fork by means of positioning and connection, such as a pusher in particular. It leads to an increased integration effort.
  • the spacing of the two branches is theoretically symmetrical. However, it is not perfectly or sufficiently in practice.
  • Document US-A-4 333 700 also describes a self-stripping contact with two elastic arms, defined on a conductive strip, separated by a slot and integral with one another on a base part of the strip.
  • the slot has non-contiguous edges and extends opposite the base part by an insulated conductor inlet and an insulating sectioning stage and coupling of the inlet to the slot.
  • the end portions of the arms beyond the slot and the facing portions along the length of the slot are shaped to have a reduced thickness and better penetrate through the insulation of the conductor.
  • Document FR-A-2 155 613 describes a contact of the same type, but on the one hand comprising three arms and two slots between them, with an insulated conductor entry and an insulating sectioning stage extending each slot, and d 'other hand comprising a stamped on the portions of the arms located along the single end portion of each slot, on the side of the base portion for securing the arms.
  • Each slot thus has its opening widening from the stamped to the opposite end.
  • the sectioning stage is the same thickness as that of the arms, with the exception of the stamped portions, which can pose a problem for the sectioning of the conductor insulation.
  • the object of the present invention is in particular to avoid the drawbacks of the known insulation displacement contacts described above.
  • a insulation displacement contact constituted by a conductive strip comprising at least one slot, two elastic branches defined on said blade, on either side of each slot, and an insulated conductor input coupled to a first end of said slot, by an insulating sectioning stage, and having reduced thickness portions provided on said branches along at least part of said slot, characterized in that said portions of reduced thickness constitute a single punching for delivery of material, substantially rectangular and produced simultaneously on the only parts of said two elastic branches situated on either side other substantially from said first end of said slot, but provided not adjoining said insulated conductor inlet, and in that said branches on either side of each slot are with straight edges facing and in contact in pressure on the axis of said slot, only along substantially the corresponding dimension of said width of said punching.
  • the insulated conductor input initially produced by a substantially V-shaped cutout, has its bottom open by said punching to form said sectioning stage and define a short axial passage which tapers from the bottom of said input V until said punching.
  • the insulation displacement contact is produced in a conductive strip 1, having a slot 2.
  • This slot 2 defines on either side of it on the strip the two elastic branches 3 and 4 of the insulation displacement fork. It opens at one of its ends into an inlet 5 of insulated conductor to be connected without prior stripping in the slot, this inlet 5 being in the example illustrated in FIG. 1 open on one of the small edges of the blade. It opens at its other end into a hole 6 of elasticity of the branches 3 and 4, this hole 6 being of oval shape and not open on any of the edges of the blade.
  • the inlet 5 and the elasticity hole 6 have their axis aligned with that of the slot 2.
  • the entry 5 is obtained by making a cut, in the form of a V with a base which can be truncated or not, in the end of the blade, with the opening of this V forming a slight constriction of retention of insulated conductor in this entry.
  • the slot 2 is on the other hand made without removing material, with its edges initially contiguous before its slight opening resulting from the separation of the two branches produced according to the invention.
  • This contact comprises a single punching of material discharge, forming a rectangular imprint 7 extending continuously on its two branches 3 and 4. This punching is carried out simultaneously on the two branches, but only on their parts located at the level of the part slot terminal which is close to the entry 5. This punching 7 is situated substantially at the end of the slot, but is however not entirely adjacent to the truncated base of the V of the entry 5.
  • this single rectangular punching 7 is only carried out on one of the faces of the blade, as shown in FIG. 2. It can of course, although not necessary, be carried out on both sides of the blade.
  • This punching 7 makes it possible to obtain, by crushing and displacement of material, a flattened boss 7A or 7B on each of the two branches, ensuring the spacing of the two branches on either side of the punching and their contacting under pressure over the width of the punching. It also makes it possible to obtain a reduced thickness of the blade at its level and in particular of the edges in contact with pressure of the bosses, which therefore participate in good penetration of the edges of the slot through the total thickness of the insulation of the driver.
  • the punch for carrying out the aforementioned punching 7 is illustrated on a substantially double scale in FIG. 3 and designated under the general reference 10. Its end 11 for mounting in a punch holder is of substantially square section. Its opposite end stamping part is of reduced section by the presence of two end chamfers 12 on two of its opposite side faces. The stamping end 13 is defined at the end of these two chamfers 12 by a terminal edge rounded between them.

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Claims (2)

  1. Kontakt ohne vorheriges Abisolieren, bestehend aus einem leitenden Plättchen, das mindestens einen Schlitz (2), zwei elastische Zweige (3, 4), die zu beiden Seiten jedes Schlitzes am Plättchen ausgebildet sind, und einen Einlaß für den isolierten Leiter aufweist, der an ein erstes Ende des Schlitzes über einen Bereich (5A, 5B, 5C) zum Durchschneiden der Isolierung gekoppelt ist und Bereiche verringerter Dicke auf den Zweigen entlang mindestens eines Teils des Schlitzes besitzt, dadurch gekennzeichnet, daß die Bereiche verringerter Dicke von einer gemeinsamen Prägung (7) gebildet werden, bei der Material weggedrückt wird, die im wesentlichen rechtwinklig geformt und zugleich auf den beiden elastischen Zweigen (3, 4) zu beiden Seiten des ersten Endes des Schlitzes (2), aber nicht in unmittelbarem Anschluß an den Einlaß (5) für den isolierten Leiter realisiert wurde, und daß die Zweige (3, 4) zu beiden Seiten jedes Schlitzes (2) einander gegenüberliegend geradlinige Ränder besitzen, die in Druckkontakt entlang der Achse des Schlitzes nur im wesentlichen im Bereich der Abmessungen entsprechend der Breite der Prägung (7) stehen.
  2. Kontakt nach Anspruch 1, dessen Einlaß für den isolierten Leiter einen im wesentlichen V-förmigen Ausschnitt besitzt, an dessen Grund axial der Schlitz mündet, dadurch gekennzeichnet, daß der Grund des V-förmigen Ausschnitts am Einlaß durch die Prägung (7) geöffnet wird, um den durch eine kurze axiale Passage (5C) verlängerten Bereich (5A, 5B) für das Durchschneiden der Isolierung zu bilden, wobei sich diese Passage (5C) vom Grund des V-förmigen Ausschnitts am Einlaß bis zur Prägung verengt.
EP19920402465 1991-09-12 1992-09-09 Abisolierfreier Kontakt Expired - Lifetime EP0532413B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9111268 1991-09-12
FR9111268A FR2681477B1 (fr) 1991-09-12 1991-09-12 Contact autodenudant.

Publications (2)

Publication Number Publication Date
EP0532413A1 EP0532413A1 (de) 1993-03-17
EP0532413B1 true EP0532413B1 (de) 1996-07-10

Family

ID=9416880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920402465 Expired - Lifetime EP0532413B1 (de) 1991-09-12 1992-09-09 Abisolierfreier Kontakt

Country Status (3)

Country Link
EP (1) EP0532413B1 (de)
DE (1) DE69212090T2 (de)
FR (1) FR2681477B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2724061A1 (fr) * 1994-08-24 1996-03-01 Amp France Connecteur electrique du type a contact par deplacement d'isolant
DE19921769A1 (de) * 1999-05-11 2000-11-16 Siemens Ag Schneidklemmkontakt und Verbindungsklemme
DE10206356B4 (de) * 2002-02-14 2005-09-08 Bühler Motor GmbH Verfahren zur Verbindung eines bedrahteten elektrischen oder elektronischen Bauteils mit einem elektrisch leitenden Körper
CN115233681B (zh) * 2022-07-08 2024-05-14 中铁隧道局集团有限公司 适用于钢管柱定位器的混凝土防超灌装置及施工方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3761866A (en) * 1971-10-06 1973-09-25 Reliable Electric Co Clip terminal
US4333700A (en) * 1980-05-23 1982-06-08 Bell Telephone Laboratories, Incorporated Insulation-penetrating slotted beam contact element
GB2168858B (en) * 1984-12-21 1988-10-05 Egerton A C Ltd Electrical contact or terminal
AU6504690A (en) * 1989-11-30 1991-06-26 Siemens Aktiengesellschaft Gripping/cutting device for use in connecting individual insulated wires

Also Published As

Publication number Publication date
FR2681477B1 (fr) 1995-06-23
FR2681477A1 (fr) 1993-03-19
DE69212090D1 (de) 1996-08-14
DE69212090T2 (de) 1996-11-07
EP0532413A1 (de) 1993-03-17

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