EP0237498B1 - A screened electrical cable - Google Patents

A screened electrical cable Download PDF

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Publication number
EP0237498B1
EP0237498B1 EP19870830080 EP87830080A EP0237498B1 EP 0237498 B1 EP0237498 B1 EP 0237498B1 EP 19870830080 EP19870830080 EP 19870830080 EP 87830080 A EP87830080 A EP 87830080A EP 0237498 B1 EP0237498 B1 EP 0237498B1
Authority
EP
European Patent Office
Prior art keywords
contact
helix
terminal
electrical cable
cable
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
EP19870830080
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0237498A3 (en
EP0237498A2 (en
Inventor
Giuseppe Codrino
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.)
Cavis Cavetti Isolati SpA
Original Assignee
Cavis Cavetti Isolati SpA
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 Cavis Cavetti Isolati SpA filed Critical Cavis Cavetti Isolati SpA
Publication of EP0237498A2 publication Critical patent/EP0237498A2/en
Publication of EP0237498A3 publication Critical patent/EP0237498A3/en
Application granted granted Critical
Publication of EP0237498B1 publication Critical patent/EP0237498B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/0063—Ignition cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
    • H01B7/1825—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of a high tensile strength core
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
    • H01R4/5033—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using wedge or pin penetrating into the end of a wire in axial direction of the wire

Definitions

  • the present invention relates to a screened electrical cable, that is one which is provided with means for preventing electrical signals on the electrical conductor from causing interference with nearby electrical equipment such as television receivers, radio receivers, computers, word-processors and the like, and which likewise is screened against picking up unwanted external signals.
  • a screened electrical cable which comprises a core of filaments of aromatic polyamide fibre within a semi-conductor layer around which is is wound a helix of electrically conductive wire, said helix being disposed within an insulating layer in turn encased by an outer cladding layer.
  • JP-O-56 159 081 discloses a U clip which present a pointed arm provided for driving in an insulating layer of a cable.
  • the document US-O-3 423 718 discloses a terminal for a screened electrical cable, which terminal has a contact body having a longitudinally split substantially cylindrical conformation, which is joined to a clinching collar which can be clinched around the outer cladding layer of the electrical screened cable.
  • the object of the present invention is that of eliminating the above mentioned disadvantages by providing a screened electrical cable which is structured in such a way as to present both a notable mechanical resistance against breakage, so as to be usable even in the most severe conditions, and a good resistance to aggressive chemicals.
  • this object is achieved by a screened electrical cable having the features of the characterizing part of the claim.
  • One advantage of the invention is that it provides a screened electrical cable the screening of which is truly effective, and which does not cause external interference even in the most difficult conditions of use.
  • Another advantage of the screened electrical cable of the present invention is that it allows connection to be made to electrical terminals with rapidity and security.
  • a further disadvantage of the present invention is that it provides a screened electrical cable which is able to offer the widest guarantees of reliability and security in use.
  • the screened electrical cable according to the invention which is generally indicated with the reference numeral 1, comprises an inner core having a mechanical support function, which is composed of a plurality of filaments 2 of aramide fibre, for example, KEVLAR® .
  • the core 2 is encased in a semi-conductor layer 3 which, advantageously, is composed of a semi-conductor compound formed of a ferrite and polyvinyl chloride.
  • a helix 4 of electrically conductive wire which advantageously is made of ferro-nickel wire, which gives the desired external interference screening.
  • an insulating layer 5 made of medium to high density E.P.D.M. rubber, which is formed preferably by extrusion.
  • the insulating layer 5 is externally clad in an outer cladding layer 6 made of HYPALON® which is resistant to high temperature and external chemical agents.
  • terminals comprising a contact body 11 having a longitudinally split substantially cylindrical shape, which is joined, by means of a bridging portion 12 of reduced cross-section, to a clinching collar 13 which likewise has a longitudinal split substantially cylindrical shape to enable it to be clinched to the end of the cable 1.
  • an electrical cable able to allow a very high performance, both mechanically and electrically, in which electrical connection to terminals is obtained in an extremely simple manner by means of the clip 20.

Landscapes

  • Insulated Conductors (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Ropes Or Cables (AREA)
EP19870830080 1986-03-10 1987-03-05 A screened electrical cable Expired - Lifetime EP0237498B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2117986U IT208566Z2 (it) 1986-03-10 1986-03-10 Struttura di cavo elettrico con schermatura antidisturbo.
IT2117986U 1986-03-10

Publications (3)

Publication Number Publication Date
EP0237498A2 EP0237498A2 (en) 1987-09-16
EP0237498A3 EP0237498A3 (en) 1989-04-26
EP0237498B1 true EP0237498B1 (en) 1993-01-20

Family

ID=11177971

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870830080 Expired - Lifetime EP0237498B1 (en) 1986-03-10 1987-03-05 A screened electrical cable

Country Status (4)

Country Link
EP (1) EP0237498B1 (it)
DE (1) DE3783628T2 (it)
ES (1) ES2037103T3 (it)
IT (1) IT208566Z2 (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT208614Z2 (it) * 1986-03-10 1988-05-28 Cavis Cavetti Isolati Spa Struttura di cavo elettrico con schermatura antidisturbo.
US5034719A (en) * 1989-04-04 1991-07-23 Prestolite Wire Corporation Radio frequency interference suppression ignition cable having a semiconductive polyolefin conductive core
DE10120298A1 (de) * 2001-04-25 2002-11-07 Delphi Tech Inc Elektrischer Schalter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3423718A (en) * 1967-01-13 1969-01-21 Amp Inc Terminal with nail lance and support member therefor
JPS56159081A (en) * 1980-05-10 1981-12-08 Ngk Spark Plug Co Radio wave noise preventing device for spark plug ignition engine without distributor
US4435692A (en) * 1981-12-08 1984-03-06 Sumitomo Electric Industries, Ltd. Low electrostatic capacity wire-wound type ignition cable
IT208614Z2 (it) * 1986-03-10 1988-05-28 Cavis Cavetti Isolati Spa Struttura di cavo elettrico con schermatura antidisturbo.

Also Published As

Publication number Publication date
DE3783628T2 (de) 1993-05-13
ES2037103T3 (es) 1993-06-16
EP0237498A3 (en) 1989-04-26
DE3783628D1 (en) 1993-03-04
IT8621179V0 (it) 1986-03-10
IT208566Z2 (it) 1988-05-28
EP0237498A2 (en) 1987-09-16

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