EP3335280A1 - Connecteur pour conducteurs supraconducteurs et utilisation du connecteur - Google Patents

Connecteur pour conducteurs supraconducteurs et utilisation du connecteur

Info

Publication number
EP3335280A1
EP3335280A1 EP16756585.2A EP16756585A EP3335280A1 EP 3335280 A1 EP3335280 A1 EP 3335280A1 EP 16756585 A EP16756585 A EP 16756585A EP 3335280 A1 EP3335280 A1 EP 3335280A1
Authority
EP
European Patent Office
Prior art keywords
connector
superconductive
conductor
superconductor
base member
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
EP16756585.2A
Other languages
German (de)
English (en)
Other versions
EP3335280B1 (fr
Inventor
Walter FIETZ
Michael J. WOLF
Reinhard Heller
Klaus-Peter Weiss
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.)
Karlsruher Institut fuer Technologie KIT
Original Assignee
Karlsruher Institut fuer Technologie KIT
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 Karlsruher Institut fuer Technologie KIT filed Critical Karlsruher Institut fuer Technologie KIT
Publication of EP3335280A1 publication Critical patent/EP3335280A1/fr
Application granted granted Critical
Publication of EP3335280B1 publication Critical patent/EP3335280B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
    • H01B12/02—Superconductive or hyperconductive conductors, cables, or transmission lines characterised by their form
    • H01B12/06—Films or wires on bases or cores
    • 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
    • H01R4/02—Soldered or welded connections
    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/187—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping combined with soldering or welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/28—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for wire processing before connecting to contact members, not provided for in groups H01R43/02 - H01R43/26

Definitions

  • the invention relates to a connector for superconductive conductors and to a use of the connector.
  • Superconductors are materials whose electrical resistance completely disappears below a certain temperature, the transition temperature. Consequently, superconductors have no electrical DC losses, provided they are operated at sufficiently low temperatures.
  • a conductor for current transport or a coil of such superconducting materials consequently has no DC losses.
  • a current can be transmitted very effectively through such a conductor.
  • high magnetic fields can be generated very efficiently with superconducting magnets.
  • a distinction is made between low-temperature and high-temperature superconductors according to the value of the temperature of the phase transition from the superconducting to the normal conducting state.
  • HTS high-temperature superconductors
  • Rare Earth Barium Copper Oxide (REBCO) high temperature superconductors are the most interesting HTS materials currently available on the market in terms of field and temperature ranges as well as current density. These materials are made in the form of thin strips in which the superconductor is applied as a thin layer with a thickness of about 1 ⁇ on a substrate, so that a band with a typical thickness of 100 pm at a width in the millimeter range arises.
  • HTS Rare Earth Barium Copper Oxide
  • the conductors In the transmission of high electrical power by superconductors, the conductors must be cooled accordingly. In order to achieve high current densities in the bundle or cable, they must therefore be as compact as possible. At the same time, however, a high mechanical stability is necessary, e.g. with regard to mechanical support with the lowest possible heat input, thermal cycles or electromagnetic forces.
  • connection resistance is understood in particular to be the electrical resistance of the connector itself.
  • the sum of the connector resistance and possibly occurring contact resistance between the conductors and the connector is referred to below as the connection resistance.
  • the superconducting conductors are soldered, for example, in a copper block in such a way that the ends of the conductors to be connected overlap.
  • the overlap allows the current to flow directly from one conductor to the other over the entire soldered length of the superconductive conductors.
  • the electrical connector resistance can be kept low.
  • the conventional solutions have disadvantages. So it is e.g. very time-consuming to produce direct connections of the individual superconductor tapes. In addition, such compounds may be relatively unstable. In the case of the lap-joint connections, the greatest possible overlap of the conductors to be connected is advantageous in order to reduce the connector resistance. However, this comes at the expense of compactness.
  • the conventional connection methods or connectors are very inflexible to handle, especially when laying superconductive conductors or cables. A flexible connection or installation of superconductive conductors or cables plays an important role, above all, because the superconductor stack, from which the conductors or cables are usually made, can only be bent to a very limited extent. It is therefore an object of the present invention to provide a connector for superconductive conductors or cables, which is compact, easy to handle and flexible.
  • a first independent aspect for achieving the object relates to a connector for electrically connecting at least one first superconducting conductor to at least one second superconducting conductor, comprising:
  • An electrically conductive base member having a first end portion to which the at least first superconductive conductor is electrically contacted, in particular solderable, and a second end portion, on which the at least second superconductive conductor is electrically contactable;
  • At least one superconductive additional element which is at least partially disposed in the base member and extending from the first end portion to the second end portion of the base member.
  • the base element or the base body of the connector is primarily the mechanical connection or intermediate piece between the superconducting conductors or cables to be electrically connected.
  • the base member is also electrically conductive, i. at least normally conductive.
  • the base member is at least partially or entirely made of a conductive metal such as e.g. Copper, aluminum or silver formed.
  • the base element is a copper block.
  • the base member has a first end portion and a first end and a second end portion and a second end, respectively.
  • the first end portion or the first end of the base member is configured to contact at least one first superconductive conductor or cable, i. to be electrically connected.
  • the first end portion may be contacted with one, two, three, four, etc.
  • the second end portion and the second end of the base member is designed to be contacted or electrically connected to at least one second superconductive conductor or cable.
  • the second end portion may be contacted with one, two, three, four, etc. second superconductive conductors.
  • each end section of the connector or of the base element can have one or more intended contact points for contacting one or more superconductive conductors or cables.
  • a first and second conductor means two conductors to be electrically connected.
  • contacting is meant an electrical connection, in particular a thermal joining or also a pressing in suitable materials such as indium.
  • the at least one first and the at least one second conductor are not part of the connector according to the invention. Only in a mounted state of Connector is the at least one first conductor to the first end portion of the connector and / or the at least one second conductor is connected to the second end portion of the connector.
  • the at least one superconductive additional element preferably comprises a superconductor or a superconductor tape and most preferably a high-temperature superconductor or a high-temperature superconductor tape, so that with appropriate cooling, ie at temperatures below the transition temperature of the superconductor, a superconducting electrical connection between the first end portion and the second end portion of the connector.
  • the at least one superconductive additional element is arranged such that it connects the first end portion and the second end portion superconducting below the transition temperature of the superconducting additional element.
  • the at least one superconducting additional element thus acts as a superconductive bypass, which is why the connector according to the invention is also referred to by the inventors as "SC-ByPass connector".
  • the at least one superconductive additional element causes a substantially superconducting electrical connection between the at least one first superconducting conductor and the at least one second superconductive conductor.
  • essentially superconductive is meant or should be taken into account that, if necessary, contact resistances at the contact points between the conductors and the connector are possible.
  • the at least one superconductive additional element is not part of a conductor to be connected, but rather a separate component of the connector according to the invention In other words, the at least one superconductive additional element is integrated into the connector independently of the conductors to be connected to each other.
  • the at least one superconducting additional element is arranged or integrated at least in regions in the base element "," In sections "or" completely.
  • this is at least one Superconductive base element at least partially within the base member, in particular in a groove, a recess or in a cavity of the base member arranged.
  • the at least one superconductive additional element in the connector according to the invention advantageously causes the current in the connection of two or more conductors does not have to flow over the full distance through the base element, but on the at least one additional element, which at sufficiently low temperatures, ie at temperatures below the transition temperature of the additional element, has no electrical resistance.
  • the electrical resistance of the connector can be largely minimized or neglected.
  • no overlap of the conductors to be connected is necessary, so that the connector according to the invention can also be very compact.
  • contacts between the entire conductor or cable can be advantageously realized by means of the connector according to the invention. Such contacts are easy to manufacture and therefore suitable for industrial use.
  • the connector according to the invention is not only suitable for electrically connecting superconducting conductors or cables, but also for connecting any other, in particular normal-conducting, conductors or cables.
  • the base element has at least one recess or groove in which the at least one superconductive additional element is arranged at least in regions.
  • the at least one superconductive additional element is connected to the base element in electrical contact or electrically connected to the base element.
  • the superconducting additional element is inserted into the recess or into the groove, pressed in and / or soldered.
  • the groove may be on a surface or outside be arranged or formed of the base element.
  • a recess may be arranged or formed in the interior of the base element, in particular as a passage opening from the first to the second end section.
  • the base element comprises a plurality of base element parts.
  • the base member may be composed of a plurality of base member parts.
  • the entirety of the base member parts form the base member.
  • the base element parts may be designed such that in the assembled state of the connector between two base element parts, a groove or recess is formed in the base element.
  • the base element comprises a hinge or a hinge. In this way it is advantageously possible to bend the base element or the connector in a simple manner.
  • the base element is partially or completely formed from copper.
  • the base element comprises one or more copper blocks.
  • the base element may be a copper block.
  • the at least one superconductive additional element comprises or is at least one superconductor tape, in particular a high-temperature superconductor tape.
  • the at least one superconductive additional element comprises a stack of superconductor tapes or the at least one superconductive additional element is a stack of superconductor tapes.
  • a superconductor tape is a tape comprising a substrate on which a superconductor, in particular a high-temperature superconductor such as REBCO, as a thin layer, for example, with a thickness of about 1 ⁇ , is applied.
  • the substrate may, for example, have a thickness of about 100 ⁇ m.
  • a superconductor tape likewise has a thickness of approximately 100 ⁇ m and may, for example, have a width of a few millimeters.
  • the base element comprises a plurality of base element parts or base element sections, which are in particular displaceable one inside another to compensate for changes in length, wherein a length of the at least one supraieitMailen additional element is greater than the sum of the lengths of the base element parts.
  • a length of the at least one supra-capable additive element is greater than a length of the base element.
  • the at least one superconducting additional element, in particular in a middle section of the connector can be arranged in an arc around the base element.
  • the at least one superconducting additional element, in particular in a middle section of the connector can be C-shaped or bent.
  • the bent portion of the at least one supraieitconnecten additional element has a radius> 1 cm.
  • the connector or the base member or at least one of the base member parts comprises a sliding groove in which one or more base member parts are movable. With the help of the groove, the base element or the connector in its length is variable or variable.
  • the at least one superconductive additional element or the at least one superconductive belt stack can be arranged or mounted in a simple manner, for example on the inside of the base element parts.
  • the conductor or cable to be connected to the connector can also be contacted in a simple manner with the end portions of the connector, in particular pressed or soldered.
  • the gap between cable and connector can be easily reduced and thus optimized.
  • the connector or base member is adapted to electrically connect n first superconductive conductors to n second superconductive conductors, wherein the connector comprises n or an integer multiple of n superconductive additional elements, and n is a natural integer greater than zero , In particular, n is 1, 2, 3, 4, 5, etc.
  • the at least one conductive base element and in particular also the at least one superconducting additional element is rectilinear or angled or curved.
  • the at least one conductive base element and in particular also the at least one superconductive additional element is shaped such that in a mounted state of the connector, a longitudinal axis of the at least one first superconductive conductor and a longitudinal axis of the at least one second superconducting conductor an angle between 0 ° and Include 180 ° or form. In this case, e.g. an angle of 0 ° a straight connector and an angle of 80 ° a U-shaped connector.
  • the first end portion of the base member is contacted with at least one first superconductive conductor, and / or the second end portion of the base member is contacted with at least one second superconductive conductor.
  • the shape of the connector ie the base element and / or the superconducting additional element can be adapted as desired, so that it is possible to realize straight connections as well as angled connections. Thus, it is not necessary to strongly bend the superconductive conductor or the superconducting cable. Such bending generally leads to a degradation of the superconductor in the currently available superconducting conductors, in particular due to the stacked superconducting individual bands or the superconductor body of the conductors formed thereby. Such degradation can be avoided with the connector according to the invention. Because compared to Superconductor stack can be relatively strong bent superconductor single bands in a simple bending direction, for example, in radii of a few centimeters. Thus, using a superconducting additional element, which comprises a single or only a few superconductor tapes, also correspondingly strongly angled or curved connector can be realized.
  • the connector according to the invention can thus be used in a simple manner to designate any path or route, e.g. in pipes, channels or shafts, with substantially rectilinear superconducting conductors and with the aid of corresponding connectors or angle pieces according to the invention.
  • Any path or route e.g. in pipes, channels or shafts, with substantially rectilinear superconducting conductors and with the aid of corresponding connectors or angle pieces according to the invention.
  • the connectors take the role of the press or Lötfittings, the superconducting conductors the role of the line pipes.
  • a further independent aspect for achieving the object relates to a use of the connector according to the invention for connecting at least one first superconducting conductor to at least one second superconductive conductor.
  • the at least one first and the at least one second superconductive conductor each comprise a plurality of superconductor tapes, which are each arranged to form a ribbon stack and each form a superconductor body of the respective superconducting conductor.
  • the at least one first superconductive conductor comprises a multiplicity of superconductor tapes, which are arranged to form a first band stack and form a first superconductor body of the at least one first superconducting conductor.
  • the at least one second superconductive conductor comprises a plurality of superconductor tapes, which are arranged to form a second tape stack and form a second superconductor body of the at least one second superconducting conductor.
  • the superconductor body has a cross-shaped cross section.
  • the band stack of the superconductor body has superconductor bands with exactly two different widths.
  • the first end portion of the connector is electrically contacted with the superconductor body of the at least one first superconductive conductor.
  • the second end portion of the connector is electrically contacted with the superconductor body of the at least one second superconducting conductor.
  • the first end portion of the connector is electrically contacted with a cladding tube of the at least one first superconductive conductor.
  • the second end portion of the connector is electrically contacted with a cladding tube of the at least one second superconductive conductor.
  • first end portion of the connector is electrically contacted both with the cladding tube and with the superconductor body of the at least one first superconducting conductor. Accordingly, it is possible that the second end portion of the connector is electrically contacted with both the cladding tube and the superconductor body of the at least one second superconducting conductor.
  • the electrical contacting takes place by means of a press-fitting or thermal joining, in particular by means of connection by means of heating or by soldering.
  • the present disclosure also provides a superconductive system comprising a first superconducting conductor, a second superconducting conductor, and the connector of the invention.
  • the connector serves to electrically connect the first and second superconductive conductors.
  • the connector electrically connects the first superconductive conductor to the second superconductive conductor.
  • the first and / or the second superconducting conductor or the band stack or the superconductor body of the first and / or the second superconducting conductor, as described above and / or below has a cross-shaped cross section.
  • the cross-shaped cross section is realized in particular in that the superconductor body is formed from a band stack which exclusively comprises bands with two different widths or consists exclusively of bands with two different widths.
  • FIG. 1 shows a schematic diagram of a conventional lap-joint connection; shows a schematic drawing of a connector according to an embodiment of the present invention; shows a schematic drawing of a connector according to another embodiment of the present invention; shows a schematic drawing of a connector according to another embodiment of the present invention; shows a perspective detail view of the connector according to Figure 4a; shows a cross-sectional view of the connector according to Figure 4a; shows a schematic drawing of a connector according to another embodiment of the present invention; shows a schematic drawing of a connector according to another embodiment of the present invention; FIG. 6b shows a perspective detail view of the connector according to FIG.
  • Figure 6a shows a schematic drawing of a connector according to another embodiment of the present invention.
  • Figure 7b shows a schematic drawing of a connector according to another embodiment of the present invention.
  • Figure 8 is a schematic drawing of the cross section of an exemplary superconducting conductor which can be connected to another conductor by means of the connector according to the invention
  • FIG. 9 shows a schematic drawing of the cross section of another exemplary superconductive conductor which can be connected to another conductor by means of the connector according to the invention.
  • FIG. 1 shows a schematic sketch of a conventional lap-joint connection of two electrical conductors.
  • the connector consists only of an electrically conductive intermediate piece 15, which has recesses in which the conductors to be connected can be soldered.
  • a first conductor 10 and a second conductor 20 are soldered into recesses of a copper block 15 such that the first conductor 10 and the second conductor 20 overlap. In this way, current can flow through the completely soldered length of the conductors 10 and 20 directly from the first conductor 10 into the second conductor 20 or vice versa.
  • the connector or the intermediate piece 15 has no additional superconductor.
  • FIG. 2 shows a schematic drawing of a connector 100 according to an embodiment of the present invention.
  • the connector 100 is rectilinear in this first embodiment and shown in an assembled state.
  • the connector 100 comprises a base member 30 and at least one superconductive attachment member 40.
  • the connector 100 comprises in particular six additional superconductive members 40.
  • Each of these superconductive attachment members 40 is disposed in an associated groove of the base member 30 and extends from a first end portion or end 32 to a second end portion and end 34 of the base member 30, respectively.
  • the first end portion 32 of the connector 100 is contacted with three first superconductive conductors 10. Accordingly, in the mounted state of the connector 100, the second end portion 34 is contacted with three second superconductive conductors 20.
  • the superconducting conductors 10, 20 are soldered to the respective ends 32, 34 of the connector 100, respectively.
  • each of the first superconductive conductors 10 contacts at least one additional superconducting element 40, in particular one belonging to the intended contact point.
  • FIG. 3 shows a schematic drawing of a connector 100 according to another embodiment of the present invention.
  • the connector 100 differs from the embodiment according to FIG. 2 only in that the connector 100 is angled or curved.
  • the base element 30 and also the superconducting additional elements 40 are formed bent or bent.
  • the at least one conductive base element 30 and also the at least one superconductive additional element 40 are shaped in such a way that in the assembled state of the connector 100, a longitudinal axis of the at least one first superconducting conductor 10 and a longitudinal axis of the at least one a second superconducting conductor 20 include an angle ⁇ or form.
  • ⁇ 0 °.
  • ⁇ is approximately 90 °.
  • the angle ⁇ can in principle take any value greater than or equal to 0 and less than or equal to 180 °.
  • the connector is U-shaped.
  • a plurality of connectors 100 having different angles ⁇ can be manufactured so that they can be used as needed.
  • Figures 4a to 4c show schematic drawings of a connector 100 according to another embodiment of the present invention.
  • the at least one superconductive additional element 40 of the connector is arranged inside the base element 30, ie on an inner side of the base element 30 or of the connector 100.
  • the amount of superconductor in the The connector preferably corresponds at least to the amount of superconductor in the conductor or cable 10 or 20.
  • the base element 30 comprises four base element parts 30a to 30d.
  • the base member parts 30a to 30d are each formed as quarter shells.
  • two superconductive additional elements 40 are arranged, in particular inserted, pressed or soldered.
  • the base member parts 30a to 30d are arranged around the conductor and cable ends 10 and 20 to be connected, respectively.
  • the connector 100 or the base element 30 comprises a plurality of base element parts
  • the base member may include one, two, three, four, five, etc., base member parts.
  • the number and arrangement of superconducting additional elements 40 can also vary.
  • FIG. 5 shows a schematic drawing of the connector according to FIGS. 4a to 4c together with two heating and pressing devices 30e and 30f. These heating and pressing devices 30e and 30f serve to heat and press the connector 100 during the bonding operation and are thereafter removed.
  • Figures 6a and 6b show schematic drawings of a connector 100 according to another embodiment of the present invention.
  • the connector 100 is formed angled.
  • the base member 30 includes two base member parts 30g and 30h.
  • the at least one superconductive additional element 40 or the eight superconducting additional elements 40 are each arranged in a recess between the two base element parts 30 g and 30 h, ie within the base element 30.
  • the connector 100 in this embodiment is configured to connect two conductors 10 and 20, each having a superconductor body 50 having a cross-shaped cross section.
  • the conductors or cables 10 and 20 each have a cladding tube 80 which surrounds the superconductor body 50.
  • Both the superconductor body 50 and the cladding tube 80 may be contacted with the end portions of the connector 100.
  • the cable ends can be placed between the base element parts 30g and 30h and then connected to these, in particular soldered and / or pressed.
  • the superconducting auxiliary elements and the superconductor tapes are all oriented in the same plane so as to guide them along their simple bending axis without degradation by the 90 ° angle.
  • FIG. 7a and 7b show schematic drawings of a connector 100 according to further embodiments of the present invention.
  • the connector 100 in a middle portion of the connector 100, the connector 100 has a hinge 37 by means of which an angle of the connector 100 is adjustable. This is schematically indicated in FIG. 7a by a curved arrow.
  • the superconducting additional elements 40 or superconductor tapes extending through the connector are bent C-shaped in the middle section of the connector 100 and thus have, in comparison to the base element 30 or to the base element parts 30i and 30j, as well as to the connector 100 itself, a longer length.
  • the minimum bend radius of REBCO tapes is typically 1 cm in a simple bending direction.
  • the superconducting tapes therefore preferably have a C-shaped arc with a radius> 1 cm, so that in this way the bending of the superconductor remains free of degradation.
  • the connector 100 can be varied along its length or its length along a sliding groove. This is schematically indicated in FIG. 7b by a straight arrow. This is particularly advantageous during cooling of the connector 100 below the transition temperature, in order to compensate for changes in length occurring.
  • the superconducting additional elements or superconductor tapes 40 extending through the connector are C-shaped in the middle section of the connector 100.
  • the superconducting tapes therefore preferably have a C-shaped arc with a radius> 1 cm, so that in this way the bending of the superconductor remains free of degradation and the current can continue to be transmitted with changes in the length of the base body.
  • the cross section of the connector 100 is preferably selected such that in the quenching case the current can flow through the base element 30 or the base element parts until it is switched off.
  • the connector 100 according to the invention can thus be used to connect at least one first superconductive conductor to at least one second superconductive conductor.
  • the at least one first and the at least one second superconductive conductor may each comprise a multiplicity of superconductor tapes which are each arranged for a ribbon stack and in each case form a superconductor body of the respective superconducting conductor.
  • Two examples of a superconducting conductor are shown in FIGS. 8 and 9, which can be electrically or superconductively connected to the connector 100 according to the invention.
  • FIG. 8 shows a schematic diagram of the cross section of an exemplary superconductive conductor 10 or 20, which can be connected to another conductor by means of the connector according to the invention.
  • the superconductive conductor 10 or 20 comprises a plurality of superconductor tapes 3, each having the same width and stacked on each other.
  • the cross section of the stacked superconductor tapes 3 is rectangular or square in this example.
  • a superconductor body 50 is formed.
  • FIG. 9 shows a schematic diagram of the cross section of another exemplary superconducting conductor 10 or 20, which can be connected to another conductor by means of the connector according to the invention. Compared to the superconducting conductor of FIG.
  • the band stack or the superconductor body 50 does not have a square, but a cross-shaped cross section. This is achieved by using superconductor tapes 1 and 2, each with two different widths, to form the superconductor stack or the superconductor body 50.
  • the end portions 32 and 34, respectively, of the connector 100 may each be contacted with the superconductor body 50 of a superconductive conductor or cable.
  • a superconductive conductor may also include a cladding tube 80.
  • the superconductor body 50 of a superconductive conductor may be surrounded by a cladding tube 80. This cladding tube 80 may also be contacted to an end portion 32, 34 of the connector 100. In this way, a connection or contacting in a very simple and stable manner possible.
  • the connector 100 of the invention or the modular connection concept associated therewith i. the provision of a variety of connectors with different angles a, allows the simple technical replaceability of superconductive conductors or cables even with complex geometries.
  • the connector 100 With the help of the connector 100, the superconducting conductors can be laid analogously to a water pipe.
  • the connector takes on the role of a press or Lötfittings while the superconductive conductors or cables take the role of connecting pipes.

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Gas Or Oil Filled Cable Accessories (AREA)

Abstract

L'invention concerne un connecteur (100) pour des conducteurs supraconducteurs ainsi qu'une utilisation du connecteur (100). Le connecteur (100), qui est approprié pour la connexion électrique d'au moins un premier conducteur supraconducteur (10) à au moins un deuxième conducteur supraconducteur (20), comprend : un élément de base électroconducteur (30) ayant un premier secteur d'extrémité (32), au niveau duquel le ou les premiers conducteurs supraconducteurs (10) peuvent être en contact électrique, et ayant un second secteur d'extrémité (34) au niveau duquel le ou les seconds conducteurs supraconducteurs (20) peuvent être en contact électrique ; et au moins un élément supplémentaire supraconducteur (40) qui est disposé au moins en partie dans l'élément de base (30) et qui s'étend du premier secteur d'extrémité (32) au second secteur d'extrémité (34) de l'élément de base (30).
EP16756585.2A 2015-08-12 2016-08-10 Connecteur pour conducteurs supraconducteurs et utilisation du connecteur Active EP3335280B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015010634.1A DE102015010634A1 (de) 2015-08-12 2015-08-12 Verbinder für supraleitfähige Leiter und Verwendung des Verbinders
PCT/EP2016/001370 WO2017025191A1 (fr) 2015-08-12 2016-08-10 Connecteur pour conducteurs supraconducteurs et utilisation du connecteur

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EP3335280A1 true EP3335280A1 (fr) 2018-06-20
EP3335280B1 EP3335280B1 (fr) 2022-01-05

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US (1) US10218090B2 (fr)
EP (1) EP3335280B1 (fr)
CN (1) CN108140961B (fr)
DE (1) DE102015010634A1 (fr)
WO (1) WO2017025191A1 (fr)

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KR20220098028A (ko) * 2019-12-06 2022-07-08 메사추세츠 인스티튜트 오브 테크놀로지 초전도 케이블용 케이블 조인트 및 관련 기술
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Also Published As

Publication number Publication date
US10218090B2 (en) 2019-02-26
CN108140961A (zh) 2018-06-08
WO2017025191A1 (fr) 2017-02-16
EP3335280B1 (fr) 2022-01-05
DE102015010634A1 (de) 2017-02-16
US20180226730A1 (en) 2018-08-09
CN108140961B (zh) 2020-05-29

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