EP0203686A1 - Accouplement électrique - Google Patents

Accouplement électrique Download PDF

Info

Publication number
EP0203686A1
EP0203686A1 EP86302440A EP86302440A EP0203686A1 EP 0203686 A1 EP0203686 A1 EP 0203686A1 EP 86302440 A EP86302440 A EP 86302440A EP 86302440 A EP86302440 A EP 86302440A EP 0203686 A1 EP0203686 A1 EP 0203686A1
Authority
EP
European Patent Office
Prior art keywords
housing
coupler
cable
head
electric
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.)
Granted
Application number
EP86302440A
Other languages
German (de)
English (en)
Other versions
EP0203686B1 (fr
Inventor
William Cuthbertson
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.)
Balfour Beatty PLC
Original Assignee
BICC PLC
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 BICC PLC filed Critical BICC PLC
Priority to AT86302440T priority Critical patent/ATE53268T1/de
Publication of EP0203686A1 publication Critical patent/EP0203686A1/fr
Application granted granted Critical
Publication of EP0203686B1 publication Critical patent/EP0203686B1/fr
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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5216—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/527—Flameproof cases
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces

Definitions

  • This invention relates to an electric coupler, especially, though not exclusively, an electric coupler for use in mines and quarries.
  • an electric coupler comprises a metal housing; an insulator at one end of the housing within which electric contacts are secured; an opening at the other end of the housing through which the insulated conductors of an electric cable pass, the conductors being attached to the contacts; and a gland for clamping the wire armouring of the cable to the outer surface of the housing; the voids within the coupler being filled with a resin or compound passed through an aperture in the housing after the coupler has been assembled, and which hardens to form a weather- ' proof coupler.
  • a coupler which comprises a plastics housing; a metal head at one end of the housing; at least two tubes of electrically insulating material secured in the head; an electric contact positioned within each tube; an opening at the other end of the housing through which an electric cable passes, each conductor of the cable being electrically connected to one of the contacts; and clamping means positioned within the housing, and electrically connected to the head, for clamping the wire armouring of the cable; the voids within the housing being filled with a hard-setting resinous insulating compound inserted through an aperture in the housing after the coupler has been assembled, and which hardens to form a weatherproof coupler.
  • Such couplers would be much lighter than their equivalent metal cased couplers and would also be less expensive to produce.
  • the present invention provides a new form of plastics-cased coupler that is of simpler and more satisfactory structure needing fewer parts and a smaller-volume of resin (which reduces cost further and helps to limit the mechanical stresses that arise on curing).
  • an electric coupler for a wire armoured cable comprises a plastics housing, a metal head at one end of the housing; at least two tubes of electrically insulating material secured in the head: an electric contact positioned within each tube; an opening at the other end of the housing through which an electric cable passes, each conductor of the cable being electrically connected to one of the contacts; metallic screening fins forming interphase barriers extending from the metal head both between the contacts and between the conductors; and clamping means mounted on at least one of the screening fins, and thereby electrically connected to the head, for clamping the wire armouring the cable; the voids within the housing being filled with a hard-setting resinous insulating compound inserted through an aperture in the housing after the coupler has been assembled, and which hardens to form a weatherproof coupler;
  • the wire armour clamping means comprises at least two metal rings through which the cable conductors pass, the rings being drawn together to grip the wires.
  • the rings may be drawn together by nuts which are screwed onto threaded spigots or studs extending from the screening fins.
  • one ring may be formed integrally with the screening fins and at least one separate ring is fastened to it by screws.
  • the electric coupler (1) shown in Figure 1 comprises a metal head (2) having three tubes (3) secured within it.
  • the tubes (3) are of a thermoset dough-moulded polyester insulating material and are secured in the head by an epoxy adhesive.
  • Each tube (3) forms an insulator for a contact - (4) on the end of a respective screened conductor - (5) of a three core wire armoured cable (6).
  • the contact (4) is made of copper and is crimped on to its conductor (5) and held within the corresponding tube (3) by a contact securing ring (7) screwed on to the contact.
  • An insulating sleeve (8) formed from a heat shrinkable plastics material, surrounds each crimped joint to keep the interstices of the stranded conductor free from the insulating compound with which the coupler will in due course be filled.
  • screening fins Formed in one piece with the metal head (2) are three screening fins (9) which extend from the metal head to form a complete interphase barrier between the contacts and between practically the whole length of the separated end parts of the cable conductors.
  • a clamp (10) which comprises three rings (11, 12, 13) through which the cable conductors pass.
  • one ring (11) is formed in one piece with the screening fins (9) and metal head (2).
  • the rings - (11, 12, 13) are fastened together by (three) screws (14) so that the armour wires (15) of the armoured cable (6) are clamped between the rings.
  • the conductor screens (16) are also mechanically and electrically connected to the clamp (10).
  • a brass phase-to-earth screening mesh (17) is positioned around the contacts, screening fins and conductors, the mesh being mechanically and electrically connected to the clamping rings (11, 12, 13) by a worm-drive clip (19).
  • All void space (22) within the housing (20) is filled with a polyurethane casting resin which is poured through an aperture (23) in the housing after the coupler has been assembled.
  • a polyurethane casting resin which is poured through an aperture (23) in the housing after the coupler has been assembled.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Insulating Bodies (AREA)
  • Amplifiers (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Surgical Instruments (AREA)
  • Cable Accessories (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
EP86302440A 1985-04-02 1986-04-02 Accouplement électrique Expired - Lifetime EP0203686B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86302440T ATE53268T1 (de) 1985-04-02 1986-04-02 Elektrische verbindung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858508557A GB8508557D0 (en) 1985-04-02 1985-04-02 Electric coupler
GB8508557 1985-04-02

Publications (2)

Publication Number Publication Date
EP0203686A1 true EP0203686A1 (fr) 1986-12-03
EP0203686B1 EP0203686B1 (fr) 1990-05-30

Family

ID=10577067

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86302440A Expired - Lifetime EP0203686B1 (fr) 1985-04-02 1986-04-02 Accouplement électrique

Country Status (6)

Country Link
EP (1) EP0203686B1 (fr)
AT (1) ATE53268T1 (fr)
CA (1) CA1261016A (fr)
DE (1) DE3671682D1 (fr)
GB (2) GB8508557D0 (fr)
ZA (1) ZA862284B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2240436A (en) * 1989-12-14 1991-07-31 Pratley Investments Shroud for a cable gland
US5118313A (en) * 1988-07-08 1992-06-02 Raychem Sa Electrical terminal
DE4116748C1 (en) * 1991-05-23 1992-10-01 Leopold Kostal Gmbh & Co Kg, 5880 Luedenscheid, De Multi-lead electrical coupling component - has sealing material channel and trough extending from plug region to achieve watertightness

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2242077A (en) * 1989-12-22 1991-09-18 Lorlin Electronics Plc Improvements in electrical connectors

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1119830A (en) * 1964-10-23 1968-07-17 Hackbridge Faraday Electrics L Improvements in or relating to cable coupling devices
GB1362270A (en) * 1972-07-06 1974-08-07 British Insulated Callenders Two-part electric couplings
EP0136156A2 (fr) * 1983-09-20 1985-04-03 BICC Public Limited Company Accouplement électrique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1119830A (en) * 1964-10-23 1968-07-17 Hackbridge Faraday Electrics L Improvements in or relating to cable coupling devices
GB1362270A (en) * 1972-07-06 1974-08-07 British Insulated Callenders Two-part electric couplings
EP0136156A2 (fr) * 1983-09-20 1985-04-03 BICC Public Limited Company Accouplement électrique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5118313A (en) * 1988-07-08 1992-06-02 Raychem Sa Electrical terminal
GB2240436A (en) * 1989-12-14 1991-07-31 Pratley Investments Shroud for a cable gland
GB2240436B (en) * 1989-12-14 1994-06-22 Pratley Investments Shroud for a cable gland
DE4116748C1 (en) * 1991-05-23 1992-10-01 Leopold Kostal Gmbh & Co Kg, 5880 Luedenscheid, De Multi-lead electrical coupling component - has sealing material channel and trough extending from plug region to achieve watertightness

Also Published As

Publication number Publication date
EP0203686B1 (fr) 1990-05-30
GB8508557D0 (en) 1985-05-09
CA1261016A (fr) 1989-09-26
DE3671682D1 (de) 1990-07-05
GB2173358B (en) 1988-06-08
ATE53268T1 (de) 1990-06-15
GB2173358A (en) 1986-10-08
GB8608059D0 (en) 1986-05-08
ZA862284B (en) 1986-11-26

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