EP0901693B1 - Isolationsdurchdringender steckkontakt - Google Patents

Isolationsdurchdringender steckkontakt Download PDF

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Publication number
EP0901693B1
EP0901693B1 EP97920890A EP97920890A EP0901693B1 EP 0901693 B1 EP0901693 B1 EP 0901693B1 EP 97920890 A EP97920890 A EP 97920890A EP 97920890 A EP97920890 A EP 97920890A EP 0901693 B1 EP0901693 B1 EP 0901693B1
Authority
EP
European Patent Office
Prior art keywords
contact
section
plugging
blade
slot
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
EP97920890A
Other languages
English (en)
French (fr)
Other versions
EP0901693A1 (de
Inventor
Pedro Duran Bofill
Josep Sanabra Jansa
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.)
Whitaker LLC
Original Assignee
Whitaker LLC
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 Whitaker LLC filed Critical Whitaker LLC
Publication of EP0901693A1 publication Critical patent/EP0901693A1/de
Application granted granted Critical
Publication of EP0901693B1 publication Critical patent/EP0901693B1/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/61—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connecting to flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/613—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connecting to flexible printed circuits, flat or ribbon cables or like structures by means of interconnecting elements
    • H01R12/616—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connecting to flexible printed circuits, flat or ribbon cables or like structures by means of interconnecting elements having contacts penetrating insulation for making contact with conductors, e.g. needle points

Definitions

  • This invention relates to an electrical contact for plugging connection to an insulation displacing contact.
  • Patent application WO 9411922 describes an integral contact element having an insulation displacement contact (IDC) section integrally connected to a plugging contact section twisted in a plane orthogonal to the IDC section.
  • IDC insulation displacement contact
  • Such contacts are mounted in housings receiving conducting wires terminated to the IDC sections, whereby the plugging contacts extend beyond an opposing side of the connector for plugging connection to complementary contacts.
  • the complementary contact is an IDC blade for termination to a conducting wire.
  • the plugging contact is provided with a chamfered end to cut through the outer insulation of conducting wires terminated in the complementary IDC blade. Depending on the thickness and toughness of the cable insulating layer, buckling or bending of the plugging contact may occur.
  • a contact comprising a first contact section for IDC with a conducting wire, and a second plugging section integral therewith for plugging connection to a complementary IDC blade, the plugging section comprising a slot extending from a mating end to proximate the first section and having a contact portion for receiving the complementary IDC blade, the slot formed between blade portions, each blade having a base section and mating end section with insulation piercing tip, wherein the mating end section has an outer cutting edge that is stepped inwardly towards the slot in relation to an outer insulation cutting edge of the base section.
  • the provision of reinforcement ribs prevents bending or buckling of the plugging contact whilst the inwardly stepped pointed tips assure effective piercing through of the insulation.
  • a contact 2 is stamped and formed from sheet metal in an integral part and comprises an IDC section 4 and a plugging contact section 6.
  • the plugging section 6 is substantially orthogonal to the IDC section of 4 and interconnected by a twisted intermediate section 8.
  • the IDC section 4 has a substantially planar base 10 comprising a centrally disposed slot 12 for receiving conducting core of an insulated conducting wire therein in a manner typical of conventional insulation displacement contacts (IDC).
  • IDC insulation displacement contacts
  • the plugging contact section comprises a substantially planar base 14 comprising a pair of symmetrical blade portions 15 separated by a plugging contact slot 16 extending from a free mating end 18 toward the intermediate section 8.
  • the slot 16 comprises a generally parallel contact portion 17, extending into a funnel shaped entry portion 21 at the mating end 18.
  • the contact portion 17 is formed by opposed contact edges 20 that are for contacting a complementary blade contact inserted into the slot 16.
  • the funnel shaped entry portion 21 enables guiding of the complementary blade contact into the slot.
  • the tapered edges of the funnel portion 21 join at their apexes oblique first outer cutting edges 24 to form pointed tips 22.
  • an outer insulating layer of a conducting wire terminated in the IDC contact may be present in the path of the plugging contact.
  • the plugging contact is thus provided with pointed tips 22 at the mating end 18 in order to pierce through this insulating layer.
  • the blade portions 15 are each provided with oblong reinforcement ribs 30 extending substantially in the plugging direction of the contact (i.e. in the direction of the slot contact section 17).
  • the reinforcement ribs prevent buckling or bending of the blade portions 15 of the plugging contact during piercing of insulating layers.
  • the reinforcement ribs 30 are provided in a base sections 25 that extend from proximate the intermediate section end 19 of the plugging contact section, to proximate a mating end section 23 of the contact.
  • the tip oblique outer edge 24 is stepped inwardly (toward the slot 16) with respect to a second outer cutting edge 34 of the base section 25.
  • the step 36 thus enables provision of a pointed insulation piercing tip 22, whilst nevertheless having a strengthening rib that extends a substantial length of the plugging contact to provide a rigid but compact structure.
  • the two step piercing ensures that the plugging contact initially and easily embeds in the outer insulation layer with relatively low forces. Piercing with the wider base section of the blade 15 only occurs in the second step once the tip is already imbedded in the material, which helps to provide direction and support.
  • the large piercing forces thus occur when the second cutting edges 34 enter the insulation layer.
  • the ribs 30 are provided alongside the second cutting edges they provide optimal strength against bending and buckling of the contact.
  • the two stage process also assists increasing the contact force of the contact edges 20 against the complementary blade, by the inward force component of the step 36 and second oblique cutting surface 34 when piercing through the insulation. The latter, however, only occurs once initial piercing has occurred and initial entry of the blade into the slot 16,thus reducing mating forces.

Landscapes

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

Claims (7)

  1. Kontakt (2), der aufweist: einen ersten Kontaktabschnitt (4) für einen Schneidklemmkontakt mit einem leitenden Draht; und einen zweiten Steckabschnitt (6), der damit zusammenhängend ist für eine Steckverbindung mit einem komplementären Schneidklemmkontaktmesser, wobei der Steckabschnitt einen Schlitz (16) aufweist, der sich von einem Eingriffsende (18) zu einem Punkt nahe dem ersten Abschnitt (4) erstreckt, und der einen Kontaktabschnitt (17) für das Aufnehmen des komplementären Schneidklemmkontaktmessers aufweist, wobei der Schlitz zwischen Messerabschnitten (15) gebildet wird, wobei jedes Messer einen Basisabschnitt (25) und einen Eingriffsendabschnitt (23) mit einer Isolierungsdurchdringungsspitze (22) aufweist, dadurch gekennzeichnet, daß der Eingriffsendabschnitt (23) eine äußere Schneidkante (24) aufweist, die nach innen in Richtung des Schlitzes (16) im Verhältnis zu einer äußeren Isolierungsschneidkante (34) des Basisabschnittes (25) abgestuft ist.
  2. Kontakt nach Anspruch 1, bei dem jeder Messerabschnitt (15) mit einer Verstärkungsrippe (30) versehen ist.
  3. Kontakt nach Anspruch 1, bei dem sich jede Rippe (30) über eine wesentliche Länge des Basisabschnittes (25) mit Bezugnahme auf eine Steckrichtung des Kontaktes (2) erstreckt.
  4. Kontakt nach Anspruch 3, bei dem sich jede Rippe unmittelbar von einer Stufe (36) aus erstreckt, die die äußere Schneidkante (34) des Basisabschnittes mit der Spitze der äußeren Schneidkante (24) verbindet.
  5. Kontakt nach Anspruch 4, bei dem jede Stufe die entsprechende Rippe (30) überlappt, wenn man in der Steckrichtung in Richtung des zweiten Abschnittes (6) des Kontaktes betrachtet.
  6. Kontakt nach einem der vorhergehenden Ansprüche, bei dem die äußere Schneidkante (24) eines jeden Eingriffsendabschnittes (23) mit Bezugnahme auf die Steckrichtung schräg ist.
  7. Kontakt nach einem der vorhergehenden Ansprüche, bei dem der Schlitz (16) einen trichterartigen Eintrittsabschnitt (21) aufweist, der sich vom Eingriffsende zum Schlitzkontaktabschnitt (17) erstreckt, um ein komplementäres Messer dort hineinzuführen, wobei der Eintrittsabschnitt durch im wesentlichen lineare Kanten (21) gebildet wird.
EP97920890A 1996-05-24 1997-05-20 Isolationsdurchdringender steckkontakt Expired - Lifetime EP0901693B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9610994 1996-05-24
GB9610994A GB9610994D0 (en) 1996-05-24 1996-05-24 Insulation piercing plugging contact
PCT/IB1997/000570 WO1997045894A1 (en) 1996-05-24 1997-05-20 Insulation piercing plugging contact

Publications (2)

Publication Number Publication Date
EP0901693A1 EP0901693A1 (de) 1999-03-17
EP0901693B1 true EP0901693B1 (de) 2000-07-19

Family

ID=10794318

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97920890A Expired - Lifetime EP0901693B1 (de) 1996-05-24 1997-05-20 Isolationsdurchdringender steckkontakt

Country Status (6)

Country Link
EP (1) EP0901693B1 (de)
AU (1) AU2710297A (de)
DE (1) DE69702608T2 (de)
ES (1) ES2150245T3 (de)
GB (1) GB9610994D0 (de)
WO (1) WO1997045894A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014158975A1 (en) 2013-03-12 2014-10-02 Tyco Electronics Corporation Notched contact for a modular plug
US11205862B2 (en) 2019-10-28 2021-12-21 TE Connectivity Services Gmbh Insulation displacement contact with expanded wire range capacity

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2015898C (en) * 1989-05-31 1996-04-23 Wayne Samuel Davis High density ribbon cable connector
DE69224668T2 (de) * 1991-06-12 1998-07-30 Mod Tap W Corp Elektrische Verbinder
DE4238534A1 (de) * 1992-11-14 1994-05-19 Minnesota Mining & Mfg Einteiliges Kontaktelement
JPH10508415A (ja) * 1994-05-06 1998-08-18 ザ ウィタカー コーポレーション 圧接接続において積み重ねられた導体に係合するように構成された電気端子

Also Published As

Publication number Publication date
EP0901693A1 (de) 1999-03-17
ES2150245T3 (es) 2000-11-16
WO1997045894A1 (en) 1997-12-04
AU2710297A (en) 1998-01-05
DE69702608T2 (de) 2001-03-29
GB9610994D0 (en) 1996-07-31
DE69702608D1 (de) 2000-08-24

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