EP0605480A1 - Ensemble bobine avec extremites torsadees, constitue d'un conducteur en fils supraconducteurs - Google Patents

Ensemble bobine avec extremites torsadees, constitue d'un conducteur en fils supraconducteurs

Info

Publication number
EP0605480A1
EP0605480A1 EP92919174A EP92919174A EP0605480A1 EP 0605480 A1 EP0605480 A1 EP 0605480A1 EP 92919174 A EP92919174 A EP 92919174A EP 92919174 A EP92919174 A EP 92919174A EP 0605480 A1 EP0605480 A1 EP 0605480A1
Authority
EP
European Patent Office
Prior art keywords
coil
conductor
arrangement according
twist
approximately
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.)
Ceased
Application number
EP92919174A
Other languages
German (de)
English (en)
Inventor
Wolfgang Nick
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to EP92919174A priority Critical patent/EP0605480A1/fr
Publication of EP0605480A1 publication Critical patent/EP0605480A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F6/00—Superconducting magnets; Superconducting coils
    • H01F6/06—Coils, e.g. winding, insulating, terminating or casing arrangements therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/064—Winding non-flat conductive wires, e.g. rods, cables or cords
    • H01F41/069—Winding two or more wires, e.g. bifilar winding
    • H01F41/07—Twisting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S336/00—Inductor devices
    • Y10S336/01—Superconductive
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S505/00—Superconductor technology: apparatus, material, process
    • Y10S505/70—High TC, above 30 k, superconducting device, article, or structured stock
    • Y10S505/704—Wire, fiber, or cable
    • Y10S505/705—Magnetic coil
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S505/00—Superconductor technology: apparatus, material, process
    • Y10S505/825—Apparatus per se, device per se, or process of making or operating same
    • Y10S505/879—Magnet or electromagnet

Definitions

  • the invention relates to a coil arrangement with at least one superconducting coil with an associated coil surface and a conductor, essentially wound on the coil surface, containing superconducting threads with a longitudinal line, which conductor has a cross-section at each point along the longitudinal line, which is approximately perpendicular to the Coil surface oriented. Extension line is stretched, and which conductor has two ends protruding from the coil.
  • Components in superconducting magnets of various types for example in superconducting magnets for particle accelerators, magnetic resonance tomographs and magnetic separators.
  • the conductor with its extension line is always oriented approximately perpendicular to the coil surface, it has so far been bent in a plane containing the longitudinal line and the extension line in all cases in which one end had to be guided approximately perpendicularly from the coil surface. But this exposes the structure of the conductor to considerable mechanical stress and can U. lead to the fact that voids arise in the structure and / or superconducting threads are damaged, which would limit the load capacity of the conductor with electrical current.
  • soldering correspondingly directed pieces to the ends is known; however, this creates solder joints, u. U. not superconducting, on the coil, which can also considerably limit their load capacity, which is mainly to be understood as the maximum value of the electrical current that can be conducted through the coil.
  • the invention is intended to provide a coil arrangement of the type mentioned, at the disadvantages of the known arrangements are avoided.
  • the coil arrangement according to the invention with at least one superconducting coil with an assigned coil area and essentially on the.
  • Stretch line is stretched and which conductor has two ends protruding from the coil, is characterized according to the invention in that at least one end near the coil has a twist, behind which the stretch line lies approximately parallel to the coil surface.
  • the invention takes advantage of the fact that twisting a flattened conductor leads to less damage to the inner structure of the conductor than bending in the plane of the extension line; behind a twist according to the invention, the conductor can be bent by bending in a plane perpendicular to the extension line easily and without the risk of damage and leading away from the coil.
  • the invention in particular allows the use of conductors which have approximately rectangular cross sections at each point on their longitudinal lines and thus allow the space available for forming the coil arrangement to be used in a special way.
  • Conductors whose cross-sections are not rectangular in the strict sense but rather trapezoidal are particularly advantageous for many applications; such conductors are used in particular for the production of dipole coils Accelerator systems preferred,
  • a conductor for use in a coil arrangement according to the invention advantageously consists of at least one matrix made of an electrically highly conductive metal, but not like the threads of superconducting metal in which the superconducting threads are embedded. Copper, aluminum and copper alloys are particularly suitable for forming the matrix.
  • materials based on the superconducting intermetallic compounds known per se are suitable for the threads. It is also conceivable to form the threads from a ceramic superconductor, in particular from a ceramic high-temperature superconductor.
  • Material damage is bent to guide the conductor away from the coil, either to another coil or to a power supply device.
  • the coil surface of the coil arrangement can be approximately flat, but it is also approximately cylindrical Coil surface possible.
  • the coil surface can thus be designed with an approximately flat or approximately cylindrical central segment and two end segments bent approximately saddle-shaped from the central segment; Coils with such coil surfaces are the well-known “saddle coils”, “bed frame coils” and “banana coils”.
  • the invention allows a first coil and a second coil to be connected in series, the two coils being assigned the same coil area and the first coil resting on the coil area on the second coil; a connection between the first coil and the second coil can be realized in that an end protruding from the first coil and having a twist is connected to an end protruding from the second coil and likewise having a twist.
  • a connection of two coils can possibly be realized in such a way that the first coil is wound with one and the same conductor and then the second coil immediately thereafter.
  • an end of the coil having the twist according to the invention is in the central region or directly at the central region , arranged.
  • a support structure in particular a collar
  • Coils with a middle and end area come e.g. B. before as dipole coils in accelerator systems, where coils are used in "Racetrack” or “Banane ⁇ ” form.
  • coils of the first-mentioned form there are two parallel ones which are arranged side by side and are straight
  • Middle regions which are connected to one another via two relatively narrowly curved end regions; the second form differs from the former in that the central regions are in turn curved, but with significantly larger radii of curvature than the end regions.
  • the superconducting threads are twisted together in a conductor for use in a coil arrangement, often in such a way that a specific screw thread is thereby defined.
  • the twisting of the entire conductor according to the invention is directed counter to the screwing that is determined by the twisting of the superconducting threads.
  • conductors in the form of cables are also used to form coil arrangements, a cable consisting of a plurality of elements which are wired to one another, for example wires.
  • a certain sense of the screw is usually defined by the wiring of the elements in the cable.
  • the twisting of the cable representing the conductor is aligned with the screw sense defined by the wiring of the elements, so that the wiring of the elements of the cable is reinforced by the attachment of the twisting according to the invention . This measure prevents individual elements of the
  • the invention also permits the use of complex cables, in which the elements which are wired to one another are cables.
  • Figure 1 shows a section of a coil in a coil arrangement according to the invention with twist
  • FIG. 2 shows a section of a coil arrangement according to the invention with twisting, which has two coils lying on one another;
  • FIG. 4 shows an example of a coil arrangement with a cylindrical coil surface
  • FIG. 5 shows an example of a coil arrangement with a complex coil area
  • Figure 6 shows a cable for use in the invention.
  • FIG. 1 shows a section of a coil 3 in the context of a coil arrangement according to the invention, the coil area 4 given by the section shown being a segment of a plane.
  • the coil 3 consists of a wound conductor 6, which contains the superconductive material (not shown in FIG. 1).
  • the conductor 6 has a longitudinal line 7 and has a cross section at each point of the longitudinal line 7, which is stretched along an extension line 8, rectangular in the present example.
  • the transversal axis 8 is always at an obtuse angle, preferably approximately perpendicularly directed to the coil surface 4, and this is advantageous from considerations relating to the penetration of the conductor 6 by the coil 3 to be generated magnetic field of the conductor.
  • FIG. 2 shows a section of a coil arrangement with a first coil 1 and a second coil 2, the second coil 2 resting on the first coil 1.
  • the coil surface, not shown in FIG. 2, is to be thought, for example, between the first coil 1 and the second
  • First coil 1 and second coil 2 are wound from a single conductor 6, which is led out at one end 9 from the first coil 1 and at another end 10 into the second coil 2. Between the ends 9 and 10, the conductor 6 has two twists 11 according to the invention; the inclusion of these twists 11 allows the conductor 6 to be guided between the first coil 1 and the second coil 2 with a minimum of deformation. Both twists 11 have the same screw sense; this is advantageous since it avoids the risk of the twists 11 folding over, which might otherwise exist. In many cases there are also inherent screw senses in the conductors 6 used, two of the two possible for applying a twist 11 Screw sense favor one.
  • FIG 3 shows a schematic example of a tape that can be used as a conductor 6 in the context of the invention.
  • the conductor 6 has a longitudinal line 7 and, as already mentioned, has a cross section at each point on the longitudinal line 7, which is stretched along an extension line 8.
  • the conductor 6 consists of a matrix 12 made of a metal such as. B. copper, in which matrix 12, the superconducting threads 5 are embedded. As a rule, the superconducting threads 5 are largely distributed regularly over the matrix 12; For the sake of clarity, only a few threads 5 are shown.
  • Figure 4 shows an embodiment of a
  • the coil arrangement consists of a first coil 1 and. a second coil 2, wherein both coils 1, 2 are in several parts and lie opposite one another on a cylindrical coil surface 4.
  • Each of the coils 1, 2 has central regions 15 which are straight and are connected to one another via curved end regions 16. According to the invention, connections of the parts of the coils 1, 2 to one another and connections between the first coil 1 and the second coil 2 can be realized; also those for
  • FIG. 5 shows a further example of a coil 3 made of a superconducting conductor 6, which is shown in detail.
  • the coil 3 in turn has approximately straight central regions 15 which are connected to one another via an arcuate end region 16.
  • the leader 6 starts at an outer end 9 and ends at an inner end 10;
  • both ends 9, 10 are shown aligned parallel to a central region 15.
  • the coil surface 4 of the coil 3 has a flat central segment 13 and an end segment 14 which is placed approximately at a right angle to the central segment 13.
  • the coil 3 shown is a so-called “bed frame coil” or “saddle coil”.
  • the central region 15 can also have a slight curvature running in the flat central segment 13.
  • FIG. 6 shows how a cable 17 can be formed by wiring a multiplicity of elements 18.
  • the cable 17 has a longitudinal line 7, which is provided with a directional arrow to explain the screw sense 19 defined by the wiring of the elements 18.
  • the elements 18 are guided around the longitudinal line 7 in a direction of rotation 20; the sense of screw 19 is clearly determined from the combination of the directed longitudinal line 7 with the direction of rotation 20.
  • the cable 17 can on the one hand represent a conductor intended for the construction of a coil arrangement according to the invention; in this case the elements 18 can consist of superconducting threads embedded in a matrix (see FIG. 3).
  • the cable 17 can also represent a twisting of superconducting threads in a band intended for the construction of a coil arrangement according to the invention; in this case the elements 18 are the superconducting threads themselves.
  • the invention allows the formation of coil arrangements from superconducting conductors, wherein strong deformations of the conductors are largely avoided and thus Impairments in operational safety can be suppressed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)

Abstract

La présente invention se rapporte à un ensemble de bobine comportant au moins une bobine supraconductrice (1, 2, 3) avec une surface de bobine associée (4) et un conducteur (6) enroulé essentiellement sur la surface de la bobine (4) et contenant des fils supraconducteurs (5). Le conducteur (6) a un axe longitudinal (7) et présente en chaque point dudit axe longitudinal (7) une section qui s'étend le long d'un axe transversal (8) dirigé sensiblement perpendiculairement à la surface de bobine (4). Deux extrémités (9, 10) du conducteur (6) sortent de la bobine (1, 2, 3). Selon l'invention, au moins une extrémité (9, 10) présente à proximité de la bobine (1, 2, 3) une torsion (11) derrière laquelle se trouve l'axe transversal (8) situé sensiblement parallèlement à la surface de bobine (4). De cette manière sont évitées des déformations excessives du conducteur (6) au cours de la fabrication de l'ensemble bobine.
EP92919174A 1991-09-25 1992-09-14 Ensemble bobine avec extremites torsadees, constitue d'un conducteur en fils supraconducteurs Ceased EP0605480A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP92919174A EP0605480A1 (fr) 1991-09-25 1992-09-14 Ensemble bobine avec extremites torsadees, constitue d'un conducteur en fils supraconducteurs

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP91116350 1991-09-25
EP91116350 1991-09-25
EP92919174A EP0605480A1 (fr) 1991-09-25 1992-09-14 Ensemble bobine avec extremites torsadees, constitue d'un conducteur en fils supraconducteurs
PCT/EP1992/002106 WO1993006607A1 (fr) 1991-09-25 1992-09-14 Ensemble bobine avec extremites torsadees, constitue d'un conducteur en fils supraconducteurs

Publications (1)

Publication Number Publication Date
EP0605480A1 true EP0605480A1 (fr) 1994-07-13

Family

ID=8207197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92919174A Ceased EP0605480A1 (fr) 1991-09-25 1992-09-14 Ensemble bobine avec extremites torsadees, constitue d'un conducteur en fils supraconducteurs

Country Status (4)

Country Link
US (1) US5387891A (fr)
EP (1) EP0605480A1 (fr)
JP (1) JPH06510885A (fr)
WO (1) WO1993006607A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0605480A1 (fr) * 1991-09-25 1994-07-13 Siemens Aktiengesellschaft Ensemble bobine avec extremites torsadees, constitue d'un conducteur en fils supraconducteurs
US6247225B1 (en) * 1995-11-07 2001-06-19 American Superconductor Corporation Method for making cabled conductors containing anisotropic superconducting compounds
US6284979B1 (en) * 1996-11-07 2001-09-04 American Superconductor Corporation Low resistance cabled conductors comprising superconducting ceramics
US5912607A (en) * 1997-09-12 1999-06-15 American Superconductor Corporation Fault current limiting superconducting coil
DE10202372B4 (de) * 2002-01-23 2007-05-10 Bruker Biospin Gmbh Supraleitfähiges NMR-Hochfeld-Magnetspulensystem mit herausragender innerer Spulensektion
DE10260728B4 (de) * 2002-12-23 2005-05-12 Bruker Biospin Gmbh Verfahren zur Berechnung des Leiterverlaufs eines Supraleiters vom Spulenkörper zum Joint sowie zugehörige Vorrichtungen
US7013822B2 (en) * 2004-04-30 2006-03-21 Fort Genson Marine, Llc Towing system
DE102004040754A1 (de) * 2004-08-23 2006-03-09 Siemens Ag Rechteckspule aus bandförmigen Supraleitern mit HochTc-Supraleitermaterial und Verwendung derselben
DE102013209967A1 (de) * 2013-05-28 2014-12-18 Siemens Aktiengesellschaft Supraleitende Spuleneinrichtung mit Spulenwicklung und Herstellungsverfahren

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DE1279182B (de) * 1965-09-11 1968-10-03 Siemens Ag Supraleitungsspule
US3559128A (en) * 1968-07-22 1971-01-26 Varian Associates Superconducting magnet for persistent operation
US4038622A (en) * 1976-04-13 1977-07-26 The United States Of America As Represented By The United States Energy Research And Development Administration Superconducting dipole electromagnet
DE2811504A1 (de) * 1978-03-16 1979-09-27 Max Planck Gesellschaft Normal- oder supraleitende magnetspule
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DE2901333C2 (de) * 1979-01-15 1983-06-23 Siemens AG, 1000 Berlin und 8000 München Verfahren zum forcierten Kühlen einer supraleitenden Magnetspulenwicklung
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DE3324339A1 (de) * 1983-07-06 1985-01-17 Basf Ag, 6700 Ludwigshafen Fluessiger epoxidharzhaerter und verfahren zu dessen herstellung
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JPS62210603A (ja) * 1986-03-11 1987-09-16 Sumitomo Electric Ind Ltd 超電導マグネツト
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EP0276360B1 (fr) * 1987-01-28 1993-06-09 Siemens Aktiengesellschaft Dispositif magnétique à bobines courbées
DE3724229A1 (de) * 1987-07-22 1989-02-02 Battelle Institut E V Verfahren zur herstellung eines duktilen verbundwerkstoffs aus einem hochtemperatur-supraleiter
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EP0605480A1 (fr) * 1991-09-25 1994-07-13 Siemens Aktiengesellschaft Ensemble bobine avec extremites torsadees, constitue d'un conducteur en fils supraconducteurs

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Also Published As

Publication number Publication date
JPH06510885A (ja) 1994-12-01
WO1993006607A1 (fr) 1993-04-01
US5387891A (en) 1995-02-07

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