EP2105994B1 - Dispositif de connexion de deux câbles supraconducteurs - Google Patents

Dispositif de connexion de deux câbles supraconducteurs Download PDF

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Publication number
EP2105994B1
EP2105994B1 EP09154772.9A EP09154772A EP2105994B1 EP 2105994 B1 EP2105994 B1 EP 2105994B1 EP 09154772 A EP09154772 A EP 09154772A EP 2105994 B1 EP2105994 B1 EP 2105994B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
superconducting
tube
layer
cables
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.)
Active
Application number
EP09154772.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2105994A1 (fr
Inventor
Nicolas Lallouet
Sébastien Delplace
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.)
Nexans SA
Original Assignee
Nexans SA
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Filing date
Publication date
Application filed by Nexans SA filed Critical Nexans SA
Publication of EP2105994A1 publication Critical patent/EP2105994A1/fr
Application granted granted Critical
Publication of EP2105994B1 publication Critical patent/EP2105994B1/fr
Active 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
    • H01R4/58—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 characterised by the form or material of the contacting members
    • H01R4/68—Connections to or between superconductive connectors
    • 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
    • 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
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/11—End pieces for multiconductor cables supported by the cable and for facilitating connections to other conductive members, e.g. for liquid cooled welding cables
    • 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
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/187—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member in the socket

Definitions

  • the present invention relates to a device for connecting two abutting superconducting cables.
  • the invention is particularly applicable to high voltage.
  • a superconducting cable consists essentially of a central support, generally of cylindrical shape, around which is wound a superconductive material and is placed an insulating sheath around the superconductor.
  • the central support consists of an electrically conductive material, for example a cable or a copper tube.
  • the superconducting material may be in the form of a ribbon wrapped around the central support in one or more layers.
  • EP 1 841 011 describes a connection termination of one end of a superconducting cable to a conventional non-superconducting conductor.
  • This connection device comprises a central conductive connection member connecting the ends of the two stripped cables arranged in a hollow tube of an insulating spacer formed of a resin part and this tube.
  • This connection device comprises a central conductive connection member connecting the ends of the two stripped cables and disposed in an insulating member.
  • Such devices for connecting abutting superconducting cables do not allow the connection to be dismounted and / or reassembled easily, without having to cut a portion of cable, for example if one of the superconducting cables must be replaced.
  • the invention proposes a device for connecting two abutting superconducting cables, which can be disassembled without intervention on the cables per se.
  • the invention relates to a connection device according to claim 1.
  • the tube After removal of the outer coating of insulating material, the tube can be disconnected from the sleeves and disassembled, ensuring its separation of the sleeves and disassembly of the connection device.
  • Said sleeve may comprise at least one orifice for introducing a welding material in the space between the layer of superconducting material and the inner wall of the sleeve.
  • Said sleeve may comprise electrical contact means on its outer surface.
  • Said electrical contact means are preferably formed by annular grooves holding metal contact strips.
  • Said tube is advantageously mechanically connected to said sleeve.
  • Said tube can be connected by screws to said sleeve.
  • Said sleeve and said tube are preferably metallic.
  • the end of the superconducting cable shown on the figure 1 consists of a central support 1 resistive electrically conductive and substantially cylindrical shape.
  • This support may be for example a copper wire cable or a low-resistivity metal tube, for example copper or silver-plated copper.
  • Two superimposed layers 2, 3 of superconducting material surround the central support 1.
  • An electrically insulating sheath 4 surrounds the superconducting layer 3.
  • the superconducting layers 2, 3 may be formed by ribbons or wires of superconducting material wound respectively around the central support 1.
  • the cable may comprise only one superconducting layer 2 or 3.
  • Superconducting wires or ribbons can be for example of the BSCCO type (Bi 2 Sr 2 Ca 2 Cu 3 O x ) or YBaCuO type.
  • the end of the cable is stripped in steps of stairs so as to show successively, starting from the cable towards its end and over a length that can be variable, the first superconducting layer 3, the second superconducting layer 2 and the central support 1.
  • the end of the electrically insulating sheath is conically formed at its end 4A, in order to form in section a bevel going from its external diameter to an external diameter slightly greater than that of the superconducting layer 3.
  • a conductive sleeve 5 is fitted around the stripped portion of the cable as shown in FIG. figure 2 and particularly visible on the figure 3 .
  • This sleeve 5 is of the same type as that described in the application for patent EP 1 841 011 .
  • This metal sleeve 5 comes to cap the stripped central support 1 and the superconducting layers 2, 3 stripped.
  • This sleeve comprises a first portion 5A and a second portion 5B.
  • the first part 5A has the shape of a hollow cylinder whose inner diameter is very slightly greater than the diameter of the support 1 so that the first portion 5A of the sleeve can be fixed on the support 1 by simple interlocking or crimping.
  • the sleeve may for example be made of copper and when the central support is also made of copper, a good copper-copper electrical connection is thus obtained. Copper can also be plated with silver.
  • the second portion 5B of the sleeve has substantially the shape of a hollow cylinder of length at least equal to the length of the stripped portions of the superconducting layers 2, 3 of way to cover them completely.
  • the internal diameter of the second portion 5B of the sleeve is greater than the diameter of the superconducting layer 3 (which has a diameter greater than that of the conductive layer 2) so that a space is provided between the inner wall of the second portion 5B the sleeve and the superconducting layers 2, 3.
  • An orifice 5C is pierced in the second portion 5B, of sufficient size to allow pouring through this orifice a powder of a welding material, or to directly cast a molten solder alloy, which will be located between the inner wall of the second portion 5B of the sleeve and the superconducting layers 2, 3.
  • the orifice may for example have an oblong shape.
  • the welding material at least partially fills the space between the second portion 5B of the sleeve and the superconducting layers 2, 3.
  • This material is electrically conductive and advantageously has a relatively low melting point, for example less than about 100 ° Celsius. It can be for example an alloy of composition Sn-Bi-Pb. This avoids damaging the superconducting layers by heating at too high a temperature, while allowing a good electrical connection between the superconducting layers and the sleeve 5.
  • the length of the sleeve is such that it completely covers the stripped portions 2, 3 of the superconducting layers, the stripped portion 1 of the central support and the end of the insulating sheath 4.
  • the second portion 5B of the sleeve is extended by a rounded outer end portion 5D having a maximum outer diameter greater than that of the sleeve and forming a radial shoulder 5E.
  • the sleeve 5 comprises on the outer wall of its second portion 5B electrical contact means, consisting of 5F grooves machined in the outer wall of the second portion 5B of the sleeve. These grooves are intended to accommodate metal contact strips having an annular shape.
  • the invention relates to a device for connecting two such abutting superconducting cables C, C ', and such a metal sleeve 5, 5' is fixed around the stripped portion of each superconducting cable, as shown in figure 4 .
  • a metal conductive tube 6 containing the sleeves 5, 5 'and connected thereto is disposed in abutment against the shoulders 5F, 5 F of the end portion 5D, 5'D of each sleeve.
  • This tube is of internal diameter slightly greater than the outer diameter of the second part of the sleeves and outer diameter substantially equal to the maximum outer diameter of the rounded end portion of each sleeve.
  • the tube 6 is mechanically connected to the sleeves 5, 5 ', for example by needle screws, not shown.
  • connection is then isolated by an outer coating 7 of insulating material, preferably a winding of paper ribbons. Due to the beveled shape 4A of the end of the outer sheath and the rounded shape of the end portion 5D, 5'D sleeves, it is possible to achieve this coating without any empty space that could lead to breakdowns.
  • a semiconductor layer for example made of carbon black paper, can be arranged between the metal connection and the outer coating 7.

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Gas Or Oil Filled Cable Accessories (AREA)
EP09154772.9A 2008-03-26 2009-03-10 Dispositif de connexion de deux câbles supraconducteurs Active EP2105994B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0851948A FR2929454B1 (fr) 2008-03-26 2008-03-26 Dispositif de connexion de deux cables supraconducteurs

Publications (2)

Publication Number Publication Date
EP2105994A1 EP2105994A1 (fr) 2009-09-30
EP2105994B1 true EP2105994B1 (fr) 2013-07-31

Family

ID=39811725

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09154772.9A Active EP2105994B1 (fr) 2008-03-26 2009-03-10 Dispositif de connexion de deux câbles supraconducteurs

Country Status (7)

Country Link
US (1) US7999182B2 (enExample)
EP (1) EP2105994B1 (enExample)
JP (1) JP5465895B2 (enExample)
KR (1) KR101506292B1 (enExample)
CN (1) CN101546872B (enExample)
DK (1) DK2105994T3 (enExample)
FR (1) FR2929454B1 (enExample)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2958807B1 (fr) 2010-04-07 2012-08-10 Nexans Dispositif de connexion de deux cables supraconducteurs
CN102918714B (zh) * 2010-05-31 2015-03-25 古河电气工业株式会社 超导电缆导体的末端结构及其中所使用的端子构件
KR101798659B1 (ko) * 2011-04-27 2017-11-16 엘에스전선 주식회사 초전도 케이블 장치
CN102545134B (zh) * 2012-02-08 2014-04-02 中国科学院电工研究所 高温超导电缆多段连接装置
EP3001523B1 (en) * 2014-09-24 2018-11-14 Tyco Electronics Raychem GmbH Electrical connector for end-to-end connection
US9875826B2 (en) * 2014-11-14 2018-01-23 Novum Industria Llc Field makeable cryostat/current connections for an HTS tape power cable
CN104538753B (zh) * 2014-12-01 2017-03-29 盛威尔(惠州)电缆科技有限公司 一种超导电缆接头装置
CN104485527A (zh) * 2014-12-18 2015-04-01 高雅 一种超导电缆主电气绝缘结构
CN107104293B (zh) * 2017-04-26 2019-07-02 中国科学院合肥物质科学研究院 二低温超导电缆终端连接接头组件及其制作方法
EP3525306B1 (de) 2018-02-09 2020-09-09 Nexans Supraleitfähiges kabelsystem mit überdruckschutz
CN110136883B (zh) * 2019-06-19 2020-07-14 东部超导科技（苏州）有限公司 一种基于ybco超导材料的便于连接的超导电缆
DE202019003381U1 (de) 2019-08-15 2019-08-28 Nexans Muffe für ein supraleitfähiges Kabel und supraleitfähiges Kabel mit Anschluss für eine Zwischenkühlung
CN115117646B (zh) * 2021-03-23 2025-02-07 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） 一种超导线材对向焊接封装结构及方法
CN113689990B (zh) * 2021-08-27 2023-07-07 深圳供电局有限公司 高温超导带材连接环形电极装置
FR3131808B1 (fr) 2022-01-07 2024-02-02 Nexans Circuits câblés supraconducteurs comportant plusieurs portions de longueur de câble supraconducteur connectées en série.
CN115249936B (zh) * 2022-09-22 2022-12-20 中国科学院合肥物质科学研究院 同轴型跨接式超导电缆接头结构及其制造方法

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KR100754765B1 (ko) * 2005-12-13 2007-09-04 송성태 누전 방지용 전선 연결캡
FR2899389B1 (fr) * 2006-03-31 2013-12-27 Nexans Terminaison de connexion d'un cable supraconducteur
DE202007015721U1 (de) * 2007-11-12 2008-03-20 Faiß, Reinhold Doppel-Aderendhülsen zur Endloskonfektionierung von Kabeln und Draht

Also Published As

Publication number Publication date
KR101506292B1 (ko) 2015-03-26
JP2009283442A (ja) 2009-12-03
EP2105994A1 (fr) 2009-09-30
US20100087101A1 (en) 2010-04-08
DK2105994T3 (da) 2013-09-08
KR20090102655A (ko) 2009-09-30
US7999182B2 (en) 2011-08-16
CN101546872A (zh) 2009-09-30
JP5465895B2 (ja) 2014-04-09
FR2929454A1 (fr) 2009-10-02
FR2929454B1 (fr) 2012-05-04
CN101546872B (zh) 2014-03-12

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