JP3120626B2 - Oxide superconducting conductor - Google Patents
Oxide superconducting conductorInfo
- Publication number
- JP3120626B2 JP3120626B2 JP05101671A JP10167193A JP3120626B2 JP 3120626 B2 JP3120626 B2 JP 3120626B2 JP 05101671 A JP05101671 A JP 05101671A JP 10167193 A JP10167193 A JP 10167193A JP 3120626 B2 JP3120626 B2 JP 3120626B2
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- superconducting
- oxide
- substrate
- oxide superconducting
- 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 - Fee Related
Links
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Landscapes
- Containers, Films, And Cooling For Superconductive Devices (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は酸化物超電導テープ線材
を集合化してなる導体に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conductor formed by assembling an oxide superconducting tape wire.
【０００２】[0002]
【従来の技術】酸化物超電導線材として、銀等の金属と
複合化したテープ線材が知られている。このテープ線材
は、銀を複合材料として酸化物超電導体を覆い、臨界電
流密度の向上と導体の熱的安定性を実現した導体であ
る。2. Description of the Related Art As an oxide superconducting wire, a tape wire composited with a metal such as silver is known. This tape wire is a conductor that covers the oxide superconductor using silver as a composite material and achieves an improvement in critical current density and thermal stability of the conductor.
【０００３】このような超電導線材を電流大容量化する
ために集合化することがあり、集合化された素線は樹脂
等の含浸材で含浸固定して使用される。[0003] Such superconducting wires are sometimes aggregated in order to increase the current capacity, and the aggregated wires are used after being impregnated and fixed with an impregnating material such as resin.
【０００４】[0004]
【発明が解決しようとする課題】テープ形状の超電導線
材の流し得る臨界電流密度は、磁場の大きさと磁場の方
向に依存しており、線材のテープ面に垂直な磁場が加わ
ると、臨界電流密度が大きく低下する恐れがある。した
がって、テープ線材を集合化する場合は、テープ面と磁
場方向が一致する状態にテープ線材を固定させる手法が
必要となる。The critical current density that a tape-shaped superconducting wire can flow depends on the magnitude and direction of the magnetic field, and when a magnetic field perpendicular to the tape surface of the wire is applied, the critical current density increases. May be greatly reduced. Therefore, in the case of assembling the tape wires, a method of fixing the tape wires in a state where the tape surface and the magnetic field direction match is required.
【０００５】本発明の目的は、複数のテープ線材を集合
化するに当たり、個々の線材に加わる磁場がテープ面に
対して平行な配置となり、臨界電流密度が大きく低下す
ることのない酸化物超電導導体を得ることにある。[0005] An object of the present invention is to assemble a plurality of tape wires so that the magnetic field applied to each wire is arranged parallel to the tape surface, and the critical current density does not decrease significantly. Is to get
【０００６】[0006]
【課題を解決するための手段】前記目的を達成するた
め、本発明では、断面において超電導導体に加わる外部
磁場の方向とほぼ平行な面を持つ基板を用い、個々の酸
化物超電導テープ線材を前記基板の面にそって集合して
固定するようにしている。In order to achieve the above object, the present invention uses a substrate having a surface which is substantially parallel to the direction of an external magnetic field applied to the superconducting conductor in a cross section, and separates the individual oxide superconducting tape wires from each other. They are assembled and fixed along the surface of the substrate.
【０００７】この場合、基板としては、エポキシ樹脂、
ＭｇＯ、サファイヤ、窒化ボロン系、ＬａＡｌ系、酸化
物、ステンレス、銀、銀合金、銅、銅合金等からなり、
断面が角形状又は扇形状をなす長尺材が使用される。In this case, an epoxy resin,
Made of MgO, sapphire, boron nitride, LaAl, oxide, stainless steel, silver, silver alloy, copper, copper alloy, etc.
A long material having a square or fan-shaped cross section is used.
【０００８】なお、この基板を基準として配置される酸
化物超電導テープ線材としては、イットリウム系、ビス
マス系、タリウム系その他の酸化物超電導体のコアを有
するテープ形状の金属複合形超電導線材が使用される。As the oxide superconducting tape wire disposed with reference to the substrate, a tape-shaped metal composite superconducting wire having a core of an yttrium-based, bismuth-based, thallium-based or other oxide superconductor is used. You.
【０００９】[0009]
【実施例】以下に本発明を図面を参照して説明すると、
図１は、超電導コイル励磁用の電流往復型の電流リード
導体１の例を示している。この電流リード導体１は、図
２に示すように、液体ヘリウム９で冷却された超電導コ
イル１０と、電源等の電力供給部に接続される接続リー
ド１１との間に配置して使用される。なお、図２中、１
２は液体窒素アンカーを示している。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.
FIG. 1 shows an example of a current reciprocating type current lead conductor 1 for exciting a superconducting coil. As shown in FIG. 2, the current lead conductor 1 is used by being arranged between a superconducting coil 10 cooled by liquid helium 9 and a connection lead 11 connected to a power supply unit such as a power supply. In FIG. 2, 1
Reference numeral 2 denotes a liquid nitrogen anchor.
【００１０】電流リードを構成する導体１は、図１に示
すように、例えば断面コ字形のＦＲＰからなる補強材３
の中に断面が扇形をした、例えばステンレスからなる５
枚の長尺な基板４ａ、４ｂ、４ｃ、４ｄ及び４ｅを介し
て複数の銀合金シース酸化物超電導テープ線材２を複数
枚積層して集合化したもの２１が複数格納されている。
この場合、各超電導テープ線材２はそのテープ面が基板
の面と平行になるように積層配置されている。As shown in FIG. 1, a conductor 1 constituting a current lead includes a reinforcing member 3 made of, for example, an FRP having a U-shaped cross section.
5 with a fan-shaped cross section, for example, made of stainless steel
A plurality 21 of a plurality of silver alloy sheath oxide superconducting tape wires 2 stacked and assembled via a plurality of long substrates 4a, 4b, 4c, 4d and 4e are stored.
In this case, the superconducting tape wires 2 are stacked so that the tape surface is parallel to the surface of the substrate.
【００１１】ここで基板４ｃは、その断面の一部の辺Ａ
Ｂ、ＣＤが導体１に加わる漏れ磁場の方向（矢印８で示
す）とほぼ平行になっており、基板４ｂと４ｄも基板４
ｃとほぼ相似の断面形状となっているが、基板４ａと４
ｅは、これを補強材３の中に組み込んだとき片方の面が
基板４ｂ、４ｄの一方の面と平行になるような断面形状
をしている。Here, the substrate 4c has a portion A
B and CD are almost parallel to the direction of the leakage magnetic field applied to the conductor 1 (indicated by the arrow 8), and the substrates 4b and 4d
c has a cross-sectional shape almost similar to that of the substrates 4a and 4c.
“e” has a cross-sectional shape such that one side thereof becomes parallel to one side of the substrates 4b and 4d when this is incorporated into the reinforcing member 3.
【００１２】各基板４ａ〜４ｅにはその長手方向に向け
て貫通する孔５が夫々形成され、蒸発する液体ヘリウム
９のエンタルピーを利用してガス冷却できるようになっ
ている。Each of the substrates 4a to 4e is provided with a hole 5 penetrating in the longitudinal direction thereof, so that gas can be cooled by utilizing the enthalpy of the liquid helium 9 which evaporates.
【００１３】また、基板４ｃにあってはその表面に酸化
膜による電気絶縁層６が形成され、これにより導体１が
電流往復型の構造となっている。この電気絶縁層６は、
基板４ｃを酸化雰囲気内で熱処理することによって容易
に形成することができるが、他の電気絶縁物の層を形成
するようにしても差し支えない。この例の場合、基板４
ａ、４ｂ、４ｄ及び４ｅには電気絶縁層がなく、それら
が超電導線材テープ線材２の電気安定化材となってい
る。An electrical insulating layer 6 of an oxide film is formed on the surface of the substrate 4c, so that the conductor 1 has a current reciprocating structure. This electrical insulating layer 6
Although it can be easily formed by heat-treating the substrate 4c in an oxidizing atmosphere, another electrical insulator layer may be formed. In this example, the substrate 4
a, 4b, 4d, and 4e do not have an electric insulating layer, and they serve as an electric stabilizing material of the superconducting wire tape wire 2.
【００１４】このような導体構成とすれば、各超電導テ
ープ線材２が基板４ａ〜４ｅの面と平行に配置されるた
め、各超電導テープ線材２の垂直面に加わる磁場成分が
低減され、電流密度の高い環境で使用することができ
る。With such a conductor configuration, since each superconducting tape wire 2 is arranged parallel to the surfaces of the substrates 4a to 4e, the magnetic field component applied to the vertical surface of each superconducting tape wire 2 is reduced, and the current density is reduced. It can be used in high environment.
【００１５】なお、基板４ｃの表面を７で示すように凹
凸面とすることにより導体の熱流束を大きくすることが
できる。The heat flux of the conductor can be increased by making the surface of the substrate 4c an uneven surface as indicated by 7.
【００１６】[0016]
【発明の効果】本発明に係る導体によれば、導体に加わ
る磁場が超電導テープ線材の面とほぼ平行になるため、
超電導導体を電流密度の高い環境で使用することができ
る。According to the conductor according to the present invention, since the magnetic field applied to the conductor is substantially parallel to the surface of the superconducting tape wire,
The superconducting conductor can be used in an environment with a high current density.
【００１７】また、本発明によれば、基板の面を利用す
ることにより超電導テープ線材の集合化を容易に行うこ
とができできる利点もある。Further, according to the present invention, there is also an advantage that superconducting tape wires can be easily assembled by using the surface of the substrate.
【図１】本発明に係る導体の一実施例を示す横断面図。FIG. 1 is a cross-sectional view showing one embodiment of a conductor according to the present invention.
【図２】本発明に係る導体の応用例を示す説明図。FIG. 2 is an explanatory view showing an application example of the conductor according to the present invention.
１ 酸化物超電導導体 ２ 超電導テープ線材 ３ 補強材 ４ａ〜４ｅ 基板 ５ 貫通孔 ６ 電気絶縁層 ８ 磁場の方向 ９ 液体ヘリウム １０ 超電導コイル DESCRIPTION OF SYMBOLS 1 Oxide superconducting conductor 2 Superconducting tape wire 3 Reinforcement 4a-4e Substrate 5 Through hole 6 Electric insulating layer 8 Magnetic field direction 9 Liquid helium 10 Superconducting coil
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H01B 12/02 H01F 6/00 H01L 39/04 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) H01B 12/02 H01F 6/00 H01L 39/04
Claims (3)
てなる酸化物超電導導体において、該導体に加わる外部
磁場とほぼ平行な面を持つ複数の基板を組み込み、個々
の超電導テープ線材を前記基板の面とほぼ平行に集合
し、固定してなることを特徴とする酸化物超電導導体。1. An oxide superconducting conductor formed by assembling a plurality of oxide superconducting tape wires, a plurality of substrates having a surface substantially parallel to an external magnetic field applied to the conductor are incorporated, and each superconducting tape wire is attached to the substrate. An oxide superconducting conductor, which is assembled and fixed substantially parallel to the surface of the oxide superconductor.
その表面に電気絶縁層を有し、超電導テープ線材が電気
的に分割されていることを特徴とする請求項１に記載の
酸化物超電導導体。2. The oxide according to claim 1, wherein the substrate is made of stainless steel, and some of the substrates have an electric insulating layer on a surface thereof, and the superconducting tape wire is electrically divided. Superconducting conductor.
とを特徴とする請求項１又は請求項２に記載の酸化物超
電導導体。3. The oxide superconducting conductor according to claim 1, wherein a through hole for cooling is provided in the substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05101671A JP3120626B2 (en) | 1993-04-28 | 1993-04-28 | Oxide superconducting conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05101671A JP3120626B2 (en) | 1993-04-28 | 1993-04-28 | Oxide superconducting conductor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06309954A JPH06309954A (en) | 1994-11-04 |
| JP3120626B2 true JP3120626B2 (en) | 2000-12-25 |
Family
ID=14306837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05101671A Expired - Fee Related JP3120626B2 (en) | 1993-04-28 | 1993-04-28 | Oxide superconducting conductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3120626B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4599807B2 (en) * | 2003-05-01 | 2010-12-15 | 富士電機システムズ株式会社 | Current leads for superconducting equipment |
| JP2008251564A (en) * | 2007-03-29 | 2008-10-16 | Kyushu Univ | High-temperature superconducting current lead and method for increasing critical current density |
-
1993
- 1993-04-28 JP JP05101671A patent/JP3120626B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06309954A (en) | 1994-11-04 |
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