EP0566764A1 - Connecteur électrique - Google Patents

Connecteur électrique Download PDF

Info

Publication number
EP0566764A1
EP0566764A1 EP92106954A EP92106954A EP0566764A1 EP 0566764 A1 EP0566764 A1 EP 0566764A1 EP 92106954 A EP92106954 A EP 92106954A EP 92106954 A EP92106954 A EP 92106954A EP 0566764 A1 EP0566764 A1 EP 0566764A1
Authority
EP
European Patent Office
Prior art keywords
connector
cable
fact
conductive element
matrix
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Withdrawn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
EP92106954A
Other languages
German (de)
English (en)
Inventor
Domenico Lazzaroni
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.)
LEDA Logarithmic Electrical Devices for Automation Srl
Original Assignee
LEDA Logarithmic Electrical Devices for Automation Srl
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 LEDA Logarithmic Electrical Devices for Automation Srl filed Critical LEDA Logarithmic Electrical Devices for Automation Srl
Priority to EP92106954A priority Critical patent/EP0566764A1/fr
Publication of EP0566764A1 publication Critical patent/EP0566764A1/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Withdrawn legal-status Critical Current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
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/18—End pieces terminating in a probe
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/28—End pieces consisting of a ferrule or sleeve
    • 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
    • H01R13/02—Contact members
    • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2101/00—One pole

Definitions

  • the present invention relates to an electrical connector for connecting two components and particularly suitable for high-voltage applications.
  • One such application is the connection of the spark plugs of a controlled-ignition vehicle engine to the distributor, which is normally made using an insulated cable with a connector at each end cooperating with respective connectors on the spark plug and distributor.
  • connections of the aforementioned type are invariably expensive in terms of both component manufacture and assembly.
  • an electrical connector for connecting a first and second component, particularly suitable for high operating voltages, and comprising a cable consisting of a conductive element and an insulating sheath, and means for connecting the respective ends of said cable to respective said components; characterized by the fact that said conductive element is tubular and made of a composite material consisting of a matrix of flexible, electrically insulating material, and particles of electrically conductive material dispersed in substantially uniform, random manner inside said matrix; said connecting means comprising two pin connectors on said first and second components respectively, which are inserted inside respective end portions of said cable.
  • Number 1 in Fig.1 indicates an electrical connector for connecting the spark plug 2 of a vehicle engine 3 (shown partially) to the distributor 4 (also shown partially).
  • Connector 1 comprises a cable 5 consisting of a conductive element 6 and a coaxial insulating sheath 7.
  • Conductive element 6 is tubular and made of a composite material comprising a matrix 8 of flexible, electrically insulating material, and particles 9 of electrically conductive material dispersed in substantially uniform, random manner inside matrix 8.
  • Said material which is known, may be of the type described in Italian Patent Application n.67862-A/87 entitled: "Electric resistor producible in a wide range of specific resistance values, and relative manufacturing process", filed on 13 October, 1987 by the present Applicant, and the content of which is incorporated herein purely by way of reference as required.
  • Fig.3 shows a graph of the supply voltage V (x axis) applied to the terminals of a conductor made of the above material, and the resulting current I (y axis) in the same conductor.
  • the continuous curve indicates the behaviour typical of the material, and comprises a first substantially straight portion A ranging from O to roughly 7000 V, in which the resistivity of the material is substantially constant; and a second sharply increasing portion B in which the resistivity of the material decreases alongside an increase in supply voltage.
  • dotted line C indicates the characteristic behaviour of a normal resistor, the resistance of which remains constant, and equal to that of portion A of the material in question, alongside an increase in supply voltage.
  • Sheath 7 is co-extruded with tubular conductive element 6 and conveniently made of pure silicon.
  • Connector 1 also comprises means for connecting cable 5 to spark plug 2 and distributor 4.
  • said connecting means comprise a first pin connector 10, of the currently used type, on spark plug 2; and a second pin connector 11, identical to connector 10, on distributor 4.
  • Each of connectors 10 and 11 presents a substantially cylindrical portion 12 on to which a respective end portion 13 of cable 5 is fitted; and an annular shoulder 14, adjacent to portion 12, for axially arresting cable 5.
  • Portion 12 presents a truncated-cone-shaped lead-in end 15 for assisting insertion inside the cavity of conductive element 6; and an intermediate, V-shaped annular groove 16 gripped flexibly by conductive element 6.
  • Connector 1 also comprises two metal clamps 17 (only one of which is shown in Fig.1) having respective tangential screws 18 for clamping ends 13 of cable 5 to respective connectors 10, 11.
  • conductive element 5 is subjected to voltages of about 10-12000 V, so that the material operates in the low-resistance portion B of the Fig.3 operating curve. Moreover, by virtue of the nature of the material of which tubular conductive element 6 is made, the radial pressure exerted by connectors 10, 11 and clamps 17 on ends 13 of cable 5 compresses the material, thus bringing together and increasing the contact pressure of adjacent conductive particles 9, and so further reducing local resistance of the material.
  • connection so formed provides for improved operation of the engine as compared with known connections, by virtue of the low resistance of conductive element 6 in the particular application described.

Landscapes

  • Spark Plugs (AREA)
EP92106954A 1992-04-23 1992-04-23 Connecteur électrique Withdrawn EP0566764A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP92106954A EP0566764A1 (fr) 1992-04-23 1992-04-23 Connecteur électrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92106954A EP0566764A1 (fr) 1992-04-23 1992-04-23 Connecteur électrique

Publications (1)

Publication Number Publication Date
EP0566764A1 true EP0566764A1 (fr) 1993-10-27

Family

ID=8209567

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92106954A Withdrawn EP0566764A1 (fr) 1992-04-23 1992-04-23 Connecteur électrique

Country Status (1)

Country Link
EP (1) EP0566764A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107910672A (zh) * 2017-09-30 2018-04-13 合保电气（芜湖）有限公司 跳线绝缘装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991397A (en) * 1974-02-06 1976-11-09 Owens-Corning Fiberglas Corporation Ignition cable
FR2456896A1 (fr) * 1979-05-12 1980-12-12 Rasmussen Gmbh Dispositif de serrage d'un tuyau ou analogue sur au moins un element tubulaire
EP0174776A2 (fr) * 1984-09-04 1986-03-19 Minnesota Mining And Manufacturing Company Bande flexible ayant des pistes de particules conductrices de l'électricité pour faire des connexions multiples
GB2177769A (en) * 1985-07-17 1987-01-28 Guest John D Improvements in or relating to hose connectors
EP0311813A2 (fr) * 1987-10-13 1989-04-19 LEDA Logarithmic Electrical Devices for Automation S.r.l. Résistance électrique variable par pression et procédé de fabrication
EP0359533A1 (fr) * 1988-09-14 1990-03-21 The Gates Rubber Company Limited Elément détecteur électrique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991397A (en) * 1974-02-06 1976-11-09 Owens-Corning Fiberglas Corporation Ignition cable
FR2456896A1 (fr) * 1979-05-12 1980-12-12 Rasmussen Gmbh Dispositif de serrage d'un tuyau ou analogue sur au moins un element tubulaire
EP0174776A2 (fr) * 1984-09-04 1986-03-19 Minnesota Mining And Manufacturing Company Bande flexible ayant des pistes de particules conductrices de l'électricité pour faire des connexions multiples
GB2177769A (en) * 1985-07-17 1987-01-28 Guest John D Improvements in or relating to hose connectors
EP0311813A2 (fr) * 1987-10-13 1989-04-19 LEDA Logarithmic Electrical Devices for Automation S.r.l. Résistance électrique variable par pression et procédé de fabrication
EP0359533A1 (fr) * 1988-09-14 1990-03-21 The Gates Rubber Company Limited Elément détecteur électrique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107910672A (zh) * 2017-09-30 2018-04-13 合保电气（芜湖）有限公司 跳线绝缘装置

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Legal Events

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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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AK Designated contracting states

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

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18D Application deemed to be withdrawn

Effective date: 19940428

RIN1 Information on inventor provided before grant (corrected)

Inventor name: LAZZARONI DOMENICO