EP0161420B1 - Câble électrique à refroidissement par liquide - Google Patents

Câble électrique à refroidissement par liquide Download PDF

Info

Publication number
EP0161420B1
EP0161420B1 EP85103141A EP85103141A EP0161420B1 EP 0161420 B1 EP0161420 B1 EP 0161420B1 EP 85103141 A EP85103141 A EP 85103141A EP 85103141 A EP85103141 A EP 85103141A EP 0161420 B1 EP0161420 B1 EP 0161420B1
Authority
EP
European Patent Office
Prior art keywords
tube
sheath
perforated
cable according
core
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
Application number
EP85103141A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0161420A1 (fr
Inventor
Michel Alloin
Charles Flamand
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.)
Cables de Lyon SA
Original Assignee
Cables de Lyon SA
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 Cables de Lyon SA filed Critical Cables de Lyon SA
Priority to AT85103141T priority Critical patent/ATE45242T1/de
Publication of EP0161420A1 publication Critical patent/EP0161420A1/fr
Application granted granted Critical
Publication of EP0161420B1 publication Critical patent/EP0161420B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/001—Power supply cables for the electrodes of electric-welding apparatus or electric-arc furnaces

Definitions

  • the present invention relates to a liquid-cooled electric cable for the transport of very high intensities under low voltages, comprising a tube, or other preformed pipe, not leaktight, surrounding an axial cavity for circulation of the liquid, a conductive core surrounding the tube. , an openwork separation sheath made of a non-conductive material, an outer conductive layer coaxial with the conductive core, and a sealed outer sheath.
  • Such a cable does not avoid blockages at certain points of the annular cooling chambers, owing to the fact that its various elements are kept apart only by their fastenings at the two cable ends in sockets. It can therefore only be of reduced length, and it is nevertheless unevenly cooled as soon as it is subjected to a significant curvature.
  • GB-A-784 036 describes a flexible water-cooled welding cable comprising a multi-strand conductor, a separator formed by strips of insulating material helically wound in opposite directions with loose overlap, a second layer of conductive wires, a second separator formed by strips of insulating material wound helically in opposite directions with loose covering, a third layer of conductive wires, an insulating layer formed by tapes wound helically in opposite directions, and an external braid.
  • the layers of helical strips of insulating material may be deformed in service under the effect of electromagnetic forces and may be damaged, risking obstructing the cooling duct.
  • the object of the present invention is to provide a liquid-cooled electrical cable which is efficiently and uniformly cooled, even if it is of appreciable length, the cooling conduits of which are not liable to be obstructed as a result of breakage or wear of certain elements, and which provides good protection for its conductors against the mechanical stresses to which it is subjected in service.
  • the cable according to the invention is characterized in that the perforated separation sheath is in contact with the conductive core and with the external conductive layer, and in that it is perforated so as to allow the circulation of the coolant between the core and the outer conductive layer, the perforated sheath being obtained by extrusion of superimposed layers of thermoplastic or elastomer material integral with one another, at least one of which is in helical bands.
  • the single figure of the drawing shows by way of example, in perspective with partial cutaway, one end of a water-cooled cable according to the invention.
  • the cable comprises axially a central tube 1 provided with perforations 2 distributed regularly over its periphery and its length, and serving for the supply of coolant.
  • This tube could be replaced by a tube with circular segments fitted together without sealing, of the type used for flexible water supply tubes for shower heads.
  • the tube 1 is surrounded by a bundle 3 of conductors 3A straight or wired in a long-pitch helix, formed of stranded strands, constituting the first conductive layer of the cable.
  • This conductive layer is surrounded by an openwork sheath 4 of thermoplastic or elastomeric material, formed by extrusion, and composed of helical bands 5 integral with interlaced bands 6, leaving openings 7.
  • a second conductive layer 8 also formed of wired conductors 8A.
  • This conductive layer is surrounded by a second perforated extruded sheath 9 made of thermoplastic or elastomeric material, formed by extrusion, and composed of helical bands 10, integral with interlaced bands 11, leaving openings 12.
  • This extruded sheath 9 could also not be openwork.
  • the structure of the ducts 4 and 9 is such that it allows a longitudinal circulation of the water of cooling between the conductive layers and possibly around the second outer layer in contact with these two layers.
  • the two inner and outer conductive layers of the cable are respectively connected to connecting lugs 14, 15, either with the terminals of a resistance welding clamp or of an arc welding torch, or with the terminals d 'a welding station, depending on the end of the cable in question.
  • the connection of the terminal and of the sheath 13 is optionally carried out by means of a rotary joint 16.
  • the manufacture of sheaths in thermoplastic or perforated elastomer material is carried out by separately introducing the first conductive layer or the internal cable part or the second conductive layer in the center of an extruder, and by extruding on the conductive layer in question two layers of thermoplastic or elastomer material integral with one another, an inner layer using a punch and an outer layer using a die.
  • This punch or this die are either fixed if one wants to obtain a layer with longitudinal strips, or rotating if one wants to obtain a layer with helical strips.
  • the electric cable which has just been described with reference to the figure of the drawing appears to be the preferable embodiment of the invention, it will be understood that various modifications can be made to it without departing from the scope of the invention, certain of its organs which can be replaced by others which would play a similar technical role.
  • the conductive layers could be formed of stranded conductors.
  • the electric cable of the invention is particularly applicable to connections between a welding station and resistance welding tongs or an arc welding torch.

Landscapes

  • Insulated Conductors (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Cable Accessories (AREA)
  • Organic Insulating Materials (AREA)
EP85103141A 1984-03-23 1985-03-19 Câble électrique à refroidissement par liquide Expired EP0161420B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85103141T ATE45242T1 (de) 1984-03-23 1985-03-19 Fluessiggekuehltes elektrisches kabel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8404564A FR2561813B1 (fr) 1984-03-23 1984-03-23 Cable electrique a refroidissement par liquide
FR8404564 1984-03-23

Publications (2)

Publication Number Publication Date
EP0161420A1 EP0161420A1 (fr) 1985-11-21
EP0161420B1 true EP0161420B1 (fr) 1989-08-02

Family

ID=9302406

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103141A Expired EP0161420B1 (fr) 1984-03-23 1985-03-19 Câble électrique à refroidissement par liquide

Country Status (11)

Country Link
US (1) US4607133A (es)
EP (1) EP0161420B1 (es)
JP (1) JPS60212906A (es)
AT (1) ATE45242T1 (es)
CA (1) CA1250626A (es)
DE (1) DE3572075D1 (es)
DK (1) DK167591B1 (es)
ES (1) ES295809Y (es)
FR (1) FR2561813B1 (es)
IE (1) IE56200B1 (es)
PT (1) PT80155B (es)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0161389B1 (fr) * 1984-02-10 1989-02-08 LES CABLES DE LYON Société anonyme dite: Câble électrique pour le transport de très fortes intensités sous de faibles tensions et procédés de fabrication d'un tel câble
JPH0743867Y2 (ja) * 1989-07-05 1995-10-09 動力炉・核燃料開発事業団 給電用ブスバー
US5142100A (en) * 1991-05-01 1992-08-25 Supercomputer Systems Limited Partnership Transmission line with fluid-permeable jacket
US5591937A (en) * 1994-12-02 1997-01-07 Hughes Aircraft Company High power, high frequency transmission cable breach detection
US5612508A (en) * 1995-03-06 1997-03-18 Watteredge-Uniflex, Inc. Flexible jumper and method of making
CA2381423C (en) * 1999-09-07 2009-04-07 Utilx Corporation Flow-through cable
US6350947B1 (en) 1999-09-07 2002-02-26 Utilx Corporation Flow-through cable
US20040089462A1 (en) * 2002-11-12 2004-05-13 Konrad Buckel Wide band high frequency compatible electrical coaxial cable
DE102007041110B4 (de) * 2007-08-30 2012-01-05 Continental Automotive Gmbh Elektrischer Anschluss und Verwendung eines elektrischen Anschlusses
FR2977065B1 (fr) * 2011-06-27 2014-07-04 Itec E Cable pour systeme d'alimentation electrique
DE102014206000A1 (de) * 2014-03-31 2015-10-01 Siemens Aktiengesellschaft Kühlvorrichtung
DE102015117508A1 (de) * 2015-10-15 2017-04-20 Phoenix Contact E-Mobility Gmbh Elektrisches Kabel mit einer Fluidleitung zum Kühlen
JP3223818U (ja) 2016-05-20 2019-11-07 サウスワイヤ・カンパニー・エルエルシー 液体冷却式充電ケーブルシステム
CN108538484B (zh) * 2018-03-26 2021-10-12 洛阳正奇机械有限公司 一种大功率充电桩dc+与dc-串冷液冷电缆
DE102018007551A1 (de) * 2018-09-25 2020-03-26 Leoni Kabel Gmbh Elektrische Litze
CN111105890A (zh) * 2019-11-29 2020-05-05 深圳思锐科电子有限公司 一种液冷多芯铜电缆
CN114709017B (zh) * 2022-05-13 2023-08-25 江苏超诚智能科技有限公司 一种大电流电力电缆及其使用方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2371185A (en) * 1945-03-13 Cable connector
US2320470A (en) * 1938-04-11 1943-06-01 Mackworth G Rees Current delivering and conducting means
US2222574A (en) * 1938-08-05 1940-11-19 Gen Cable Corp Electrical cable for welding machines
DE1113965B (de) * 1955-11-07 1961-09-21 Robert Hoehn Dipl Ing Hochflexible Litze fuer elektrische Schweisskabel oder andere Hochstromleitungen
FR1309311A (fr) * 1961-10-02 1962-11-16 Chausson Usines Sa Procédé pour la protection de câbles électriques et produit obtenu par ce procédé
NL6609791A (es) * 1966-07-12 1968-01-15
GB1422333A (es) * 1972-03-16 1976-01-28

Also Published As

Publication number Publication date
DE3572075D1 (en) 1989-09-07
CA1250626A (fr) 1989-02-28
IE850747L (en) 1985-09-23
PT80155B (pt) 1987-08-19
IE56200B1 (en) 1991-05-08
PT80155A (fr) 1985-04-01
JPS60212906A (ja) 1985-10-25
US4607133A (en) 1986-08-19
ATE45242T1 (de) 1989-08-15
ES295809U (es) 1987-06-16
DK167591B1 (da) 1993-11-22
FR2561813A1 (fr) 1985-09-27
EP0161420A1 (fr) 1985-11-21
FR2561813B1 (fr) 1986-12-26
ES295809Y (es) 1987-12-16
DK130985A (da) 1985-09-24
DK130985D0 (da) 1985-03-22

Similar Documents

Publication Publication Date Title
EP0161420B1 (fr) Câble électrique à refroidissement par liquide
US4698458A (en) Joint for cables with an extruded insulation
US7067739B2 (en) Joint structure of superconducting cable and insulating spacer for connecting superconducting cable
EP0161389B1 (fr) Câble électrique pour le transport de très fortes intensités sous de faibles tensions et procédés de fabrication d'un tel câble
EP0643399B1 (fr) Cable de transmission haute fréquence
EP0554160B1 (fr) Câble électrique haute fréquence
EP2104197A1 (fr) Structure de connexion électrique pour élement supraconducteur
JP2009283442A5 (es)
KR100496995B1 (ko) 초전도 케이블의 접속구조 및 접속방법
EP2852001A1 (fr) Jonction de câbles supraconducteurs
FR2508718A1 (fr) Ensemble de connexion de deux cables a couches multiples notamment dans l'enroulement statorique d'un alternateur haute tension
FR2818000A1 (fr) Cable de telecommunication a haute frequence a groupes de fils conducteurs
KR0121579Y1 (ko) 고압선로용 케이블의 직선접속재
EP0469343B1 (fr) Câble électrique coaxial à fibres optiques
US3544700A (en) Electrical cable joints
FR2687830A1 (fr) Cable de transport d'energie a moyenne et haute tension avec detection de depassement de temperature et utilisation d'un tel cable.
EP2911163A1 (fr) Blindage électromagnétique tressé pour câbles
FR2723245A1 (fr) Cable de transport d'energie electrique ou de telecommunication et procede de fabrication d'un tel cable
FR2503441A1 (fr) Nouveau cable electrique
FR2519505A1 (fr) Cable chauffant et son procede de fabrication
KR102625957B1 (ko) 이종 도체 접합을 위한 연결도체, 연결도체 제조방법 및 전력 케이블 중간접속장치
JP2517837B2 (ja) 超電導電力ケ―ブル
EP0949636B1 (fr) Conducteur multicouche à effet de peau réduit
EP1006534B1 (fr) Câble de raccordement électrique
US4354050A (en) Electric cable joints

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19860520

17Q First examination report despatched

Effective date: 19871229

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 45242

Country of ref document: AT

Date of ref document: 19890815

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3572075

Country of ref document: DE

Date of ref document: 19890907

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19941230

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19950103

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19950119

Year of fee payment: 11

EAL Se: european patent in force in sweden

Ref document number: 85103141.9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19950208

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19950220

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19950221

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19950331

Year of fee payment: 11

Ref country code: AT

Payment date: 19950331

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19960319

Ref country code: AT

Effective date: 19960319

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19960320

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19960331

Ref country code: CH

Effective date: 19960331

Ref country code: BE

Effective date: 19960331

BERE Be: lapsed

Owner name: LES CABLES DE LYON

Effective date: 19960331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19961001

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960319

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19961129

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19961001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19961203

EUG Se: european patent has lapsed

Ref document number: 85103141.9

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST