EP0057633A1 - Contact électrique autodénudant, procédé de fabrication de ce contact et connecteurs comprenant ce contact, notamment pour câbles en nappe - Google Patents

Contact électrique autodénudant, procédé de fabrication de ce contact et connecteurs comprenant ce contact, notamment pour câbles en nappe Download PDF

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Publication number
EP0057633A1
EP0057633A1 EP82400133A EP82400133A EP0057633A1 EP 0057633 A1 EP0057633 A1 EP 0057633A1 EP 82400133 A EP82400133 A EP 82400133A EP 82400133 A EP82400133 A EP 82400133A EP 0057633 A1 EP0057633 A1 EP 0057633A1
Authority
EP
European Patent Office
Prior art keywords
slots
contact
branches
electrical contact
points
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.)
Withdrawn
Application number
EP82400133A
Other languages
German (de)
English (en)
French (fr)
Inventor
François Robert Bonhomme
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0057633A1 publication Critical patent/EP0057633A1/fr
Withdrawn legal-status Critical Current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
    • H01R4/2445—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives
    • H01R4/2458—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the contact members being in a slotted tubular configuration, e.g. slotted tube-end
    • 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
    • H01R12/70—Coupling devices
    • H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures

Definitions

  • the present invention relates to an electrical contact of the insulation displacement type, that is to say capable of being connected to an electrical conductor surrounded by an insulator, without prior stripping.
  • the invention also relates to a method of manufacturing this contact.
  • the invention also relates to connectors comprising one or preferably a plurality of these contacts and allowing the connection of all of the connector contacts to one or more conductors or sets of insulated conductors, in particular in the form of ribbon cables, again called "flat cables”.
  • the invention relates more particularly to an electrical contact intended to be connected to an electrical cable which is formed of at least one conductor surrounded by an insulator, without prior removal of this insulator, which contact has at its front end two substantially semi-cylindrical branches surrounding a central recess of substantially cylindrical shape and separated by two diametrically opposite longitudinal slots intended to receive the conductor, these branches ending in front by points which are capable of penetrating into the insulation and which converge two by two backwards to one or the other of the slots, the branches being connected to one another at the rear of the two slots.
  • the contact according to the invention is essentially characterized in that it only comprises two points offset circumferentially by 90 ° relative to the slots, which allows the driver to be guided towards the two slots during penetration of the tips into the insulation.
  • each branch at the level of the point, is provided with an external chamfer tending to oppose any deformation towards the outside and therefore any enlargement of the slots, this chamfer being able to be d 'a relatively small size because the central recess, by receiving the cut insulating material, avoids a stuffing effect and therefore a tendency to the separation of the two branches.
  • the height of the slots is such that the end of the slot opposite the points is located below the bottom of said substantially cylindrical recess. In other words, the height of the slots is less than the depth of said recess .
  • the contact tail can be made anyway to form itself, for example, a male contact or plug-in female.
  • the invention also relates to a method of manufacturing this contact, characterized in that a rigid metal rod section is used (on the scale of the contact which can be very small), which is preferably provided the turning of the end, which is preferably chamfered on the outside of the end of this rod, that the axial drilling of the central recess is carried out at a diameter preferably slightly smaller than the diameter of the chamfer, which is machine the two slits and form the points.
  • the machining of the slots is carried out using a milling cutter while the shaping of the points, according to a plane perpendicular to the cutting plane of the slots, is carried out using a strawberry in shape, preferably with a triangular groove.
  • the subject of the invention is also a connector comprising one or preferably a plurality of contacts, characterized in that it comprises, on a connector cradle, one or more contacts according to the invention with the contact branches emerging from said cradle, the contact resting on the cradle to remain fixed by. compared to this during penetration into the insulating material.
  • the cradle which can be associated with a usual connector housing containing the non-protruding contact parts, can also be associated with a connector cover capable of receiving the wire or ribbon cable to apply it against the cradle and carry out the penetration of the branches of the individual contacts into the insulating material.
  • the end 18 of the contact that can be seen in these figures has, with respect to the cylindrical central part 1 of the contact, a reduced diameter so as to form a radial shoulder 2.
  • This end has two substantially semi-cylindrical branches 3, 4 which surround a concentric cylindrical recess 5.
  • Each of the branches 3, 4 has a penetration point 6,7 the upper part of which is arranged practically in the geometrical cylinder which delimits the internal cylindrical recess 5.
  • the ends 6, 7 present towards the outside a chamfered part. 8,9.
  • the flaps 10, as seen in the drawing, as well as the flaps 11, have an inclination such that, seen in the longitudinal direction of contact, the upper edge 12, which constitutes the intersection of the face 10 with the internal cylindrical surface of the recess 5, is constantly arranged above the edge 13, which constitutes the intersection of the pan 10 with the external cylindrical surface of the branch 3.
  • the two sides 10, 11 located opposite one another converge back towards a longitudinal slot 14, the bottom 15 of which is located above the bottom 16 of the central cylindrical recess 5.
  • a chamfer 19 is then produced on the lathe at the end of the narrowed part 18, using a chamfering tool 20 (FIG. 4).
  • the two slots 14 are produced in a single time using a saw mill 22 having the desired thickness.
  • the points 6 and 7 and the flaps 10 and 11 are produced using a milling cutter 23 having an internal groove with a V section, the axis of rotation of the cutter 23 being perpendicular to the axis of rotation of the saw 22 so that the two vertices 6,7 are angularly offset by 90 ° relative to the slots 14.
  • the machining of the rest of the contact including its tail.
  • the rest of the contact can be of any known or other form.
  • the tail of the contact can be produced in the form of a male or female plug.
  • FIG. 8 schematically shows a connector comprising contacts according to the invention.
  • This connector comprises, in a manner known per se, a cradle 24 provided with a plurality of holes 25 distributed over two parallel rows, offset by a half-step relative to each other.
  • the cradle 24 is integral with a connector housing 26 provided with fixing means 27 for securing the connector cover 28.
  • a ribbon cable 30, provided with different parallel electrical conductors 31, is disposed under the cover 28 in the configuration shown in the drawing.
  • Each lateral edge of the cable is precentered by a shoulder 32 of the cover 28 and centered by parallel ribs which the cover 28 includes and which engage in parallel grooves 36 of the ribbon cable 30.
  • FIG. 10 represents a schematic cross-sectional view of a contact at the level of the deformed conductor 31, it can be seen that the insulating material 33, surrounding the conductor 31, could have largely found its place in the inner recess 5.
  • the conductor 31 itself is deformed by being pinched in a way only when it passes through the two slots 14 in the zones 34.
  • each contact instead of being cylindrical up to the shoulder 2, could for example be frustoconical or cylindrical over most of its height by being connected to the shoulder 2 by an arched profile leave. Moreover, he it would be possible to give the slots 14 of each contact unequal widths.

Landscapes

  • Manufacturing Of Electrical Connectors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
EP82400133A 1981-01-28 1982-01-25 Contact électrique autodénudant, procédé de fabrication de ce contact et connecteurs comprenant ce contact, notamment pour câbles en nappe Withdrawn EP0057633A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8101588 1981-01-28
FR8101588A FR2498822A1 (fr) 1981-01-28 1981-01-28 Contact electrique autodenudant, procede de fabrication de ce contact et connecteurs comprenant ce contact, notamment pour cables en nappe

Publications (1)

Publication Number Publication Date
EP0057633A1 true EP0057633A1 (fr) 1982-08-11

Family

ID=9254595

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82400133A Withdrawn EP0057633A1 (fr) 1981-01-28 1982-01-25 Contact électrique autodénudant, procédé de fabrication de ce contact et connecteurs comprenant ce contact, notamment pour câbles en nappe

Country Status (7)

Country Link
EP (1) EP0057633A1 (da)
JP (1) JPS57502235A (da)
CA (1) CA1184982A (da)
DK (1) DK36282A (da)
ES (1) ES271040Y (da)
FR (1) FR2498822A1 (da)
WO (1) WO1982002627A1 (da)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2592743A1 (fr) * 1986-01-08 1987-07-10 Allied Corp Cosse de raccordement electrique a fut borgne et son procede de fabrication
FR2661565A1 (fr) * 1990-04-26 1991-10-31 Sofycom Procede de fabrication d'une fiche fendue tubulaire autodenudante pour dispositif de connexion telephonique.
EP0578118A1 (de) * 1992-07-10 1994-01-12 Richard Hirschmann GmbH & Co. Steckkontaktelement
EP0884800A2 (de) * 1997-06-12 1998-12-16 Siemens Aktiengesellschaft Anschlusseinrichtung für Koaxialkabel
DE102009050569B4 (de) * 2009-08-10 2011-09-22 Willy Kreutz Gmbh & Co. Kg Kontaktstift zur Verwendung an Beleuchtungsmitteln sowie Verfahren zu dessen Herstellung
CN102969591A (zh) * 2012-11-12 2013-03-13 中航光电科技股份有限公司 自剥线电连接器及其接触件

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2651768A (en) * 1947-04-02 1953-09-08 Oortgijsen Jan Electrical terminal having conductor-severing edge
GB1428359A (en) * 1971-12-21 1976-03-17 Communications Patents Ltd Electrical connectors
FR2282730A1 (fr) * 1974-08-22 1976-03-19 Thomas & Betts Corp Contact electrique perfectionne
JPS51119991A (en) * 1975-04-15 1976-10-20 Daiichi Denshi Kogyo Kk Connecting end
GB2026255A (en) * 1978-06-24 1980-01-30 Bunker Ramo Electrical contact
CH616533A5 (en) * 1976-08-17 1980-03-31 Gerhard Mueller Connecting post for insulating wires for electrical wiring of devices or parts of devices, particularly in mainly flat construction
US4210378A (en) * 1979-04-23 1980-07-01 Minnesota Mining And Manufacturing Company Electrical wire connection

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2378390A1 (fr) * 1977-01-21 1978-08-18 Muller Gerhard Potelets de branchement pour le raccordement d'un ou de plusieurs fils gaines

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2651768A (en) * 1947-04-02 1953-09-08 Oortgijsen Jan Electrical terminal having conductor-severing edge
GB1428359A (en) * 1971-12-21 1976-03-17 Communications Patents Ltd Electrical connectors
FR2282730A1 (fr) * 1974-08-22 1976-03-19 Thomas & Betts Corp Contact electrique perfectionne
JPS51119991A (en) * 1975-04-15 1976-10-20 Daiichi Denshi Kogyo Kk Connecting end
CH616533A5 (en) * 1976-08-17 1980-03-31 Gerhard Mueller Connecting post for insulating wires for electrical wiring of devices or parts of devices, particularly in mainly flat construction
GB2026255A (en) * 1978-06-24 1980-01-30 Bunker Ramo Electrical contact
US4210378A (en) * 1979-04-23 1980-07-01 Minnesota Mining And Manufacturing Company Electrical wire connection

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2592743A1 (fr) * 1986-01-08 1987-07-10 Allied Corp Cosse de raccordement electrique a fut borgne et son procede de fabrication
FR2661565A1 (fr) * 1990-04-26 1991-10-31 Sofycom Procede de fabrication d'une fiche fendue tubulaire autodenudante pour dispositif de connexion telephonique.
EP0578118A1 (de) * 1992-07-10 1994-01-12 Richard Hirschmann GmbH & Co. Steckkontaktelement
EP0884800A2 (de) * 1997-06-12 1998-12-16 Siemens Aktiengesellschaft Anschlusseinrichtung für Koaxialkabel
EP0884800A3 (de) * 1997-06-12 2001-10-10 Tyco Electronics Logistics AG Anschlusseinrichtung für Koaxialkabel
DE102009050569B4 (de) * 2009-08-10 2011-09-22 Willy Kreutz Gmbh & Co. Kg Kontaktstift zur Verwendung an Beleuchtungsmitteln sowie Verfahren zu dessen Herstellung
CN102969591A (zh) * 2012-11-12 2013-03-13 中航光电科技股份有限公司 自剥线电连接器及其接触件
CN102969591B (zh) * 2012-11-12 2015-04-29 中航光电科技股份有限公司 自剥线电连接器及其接触件

Also Published As

Publication number Publication date
ES271040Y (es) 1984-05-01
FR2498822B1 (da) 1984-05-11
ES271040U (es) 1983-09-01
DK36282A (da) 1982-07-29
FR2498822A1 (fr) 1982-07-30
JPS57502235A (da) 1982-12-16
CA1184982A (fr) 1985-04-02
WO1982002627A1 (en) 1982-08-05

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

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Effective date: 19830110

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Effective date: 19850619