JPS63268204A - Superconducting magnet - Google Patents
Superconducting magnetInfo
- Publication number
- JPS63268204A JPS63268204A JP10166587A JP10166587A JPS63268204A JP S63268204 A JPS63268204 A JP S63268204A JP 10166587 A JP10166587 A JP 10166587A JP 10166587 A JP10166587 A JP 10166587A JP S63268204 A JPS63268204 A JP S63268204A
- Authority
- JP
- Japan
- Prior art keywords
- superconducting
- magnet
- magnetic field
- annular
- molded body
- 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.)
- Pending
Links
- 230000002085 persistent effect Effects 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 claims 1
- 239000011810 insulating material Substances 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000012212 insulator Substances 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 2
- 229910009203 Y-Ba-Cu-O Inorganic materials 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
- 239000002887 superconductor Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- MGIUUAHJVPPFEV-ABXDCCGRSA-N magainin ii Chemical compound C([C@H](NC(=O)[C@H](CCCCN)NC(=O)CNC(=O)[C@@H](NC(=O)CN)[C@@H](C)CC)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC=1NC=NC=1)C(=O)N[C@@H](CO)C(=O)N[C@@H](C)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](C)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](C(C)C)C(=O)NCC(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCSC)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CO)C(O)=O)C1=CC=CC=C1 MGIUUAHJVPPFEV-ABXDCCGRSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
Landscapes
- Containers, Films, And Cooling For Superconductive Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は超電導体を用いたマグネットに関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnet using a superconductor.
超電導電磁石は巻枠に超電導線を巻つけ、それに電流を
流して磁石にするものである。この超電導線は長尺品を
要求される場合、コイルの場所によって線材の種類が違
う場合等には、複数本の線が電気的に直列に接続されて
使用される。また外部の電源から通電されるためその超
電導線の巻始め、巻終りの両端には通電リードが接続さ
れる。A superconducting electromagnet is made by winding a superconducting wire around a winding frame and passing an electric current through it to create a magnet. When this superconducting wire is required to be long, or when the type of wire material differs depending on the location of the coil, multiple wires are used electrically connected in series. Since the superconducting wire is energized from an external power source, current-carrying leads are connected to both ends of the superconducting wire at the beginning and end of the winding.
これらの接続部に関しては、下記の事が要求される。即
ち
■電磁石自身が発生した磁界中に置かれるので電磁力を
受け、従って変形を防ぐため堅固に取り付ける必要があ
る。Regarding these connections, the following is required: That is, (1) Since the electromagnet itself is placed in a generated magnetic field, it receives electromagnetic force, so it must be firmly attached to prevent deformation.
■電気抵抗があるので発熱があり、放熱を良くする必要
がある。■Since there is electrical resistance, heat is generated, so it is necessary to improve heat dissipation.
■複数箇所の場合には相互の絶縁を確保する必要がある
。■If there are multiple locations, mutual insulation must be ensured.
このような従来構造の超電導マグネットには下記のよう
な問題点がある。A superconducting magnet having such a conventional structure has the following problems.
■接続点数を少なくするために、長尺かつ均一な超電導
線材が必要である。■To reduce the number of connections, long and uniform superconducting wires are required.
■常温の外部電源と冷媒中の超電導マグ２ ｙ ）を結
ぶ電流リードによる冷媒への熱流入をできるだけ少なく
する必要がある。■It is necessary to minimize the inflow of heat into the refrigerant through the current lead connecting the external power supply at room temperature and the superconducting mag 2 y ) in the refrigerant.
■電気的接続を前提とするマグネットであるため、永久
電流モードにするために多くの工夫が必要となる。■Since the magnet requires electrical connection, many ingenuity is required to set it to persistent current mode.
本発明は以上のような点にかんがみてなされたもので、
その目的とするところは、電流リードと電気的接続を有
しない超電導マグネットを提供することにある。The present invention has been made in view of the above points.
The aim is to provide a superconducting magnet without current leads and electrical connections.
〔問題点を解決するための手段および作用〕即ち本発明
は、永久電流が流れている環状超電導成形体を複数個組
み合せてなる、電流リードを有しない超電導マグネット
である。永久電流の流れている環状超電導成形体の組合
せ方法は、第１図（ａ）に示すように、同軸上に重ね合
せられる場合、第１図（ｂ）に示すように、同心円状に
重ね合せられる場合、または、第１図（Ｃ）に示すよう
に、鞍形状にして重ね合せられる場合がある。環状超電
導成形体を構成する超電導体としてはＮｂＴｉ、Ｎｂｚ
Ｓｎ、酸化物系超電導体などいずれでもよい。また、環
状超電導成形体はホルマール樹脂、アミドイミド樹脂、
ガラスエポキシ樹脂などで絶縁されてもよい。[Means and effects for solving the problems] That is, the present invention is a superconducting magnet without current leads, which is formed by combining a plurality of annular superconducting molded bodies through which a persistent current flows. The method of combining annular superconducting molded bodies through which persistent current flows is as follows: When they are stacked coaxially as shown in Figure 1(a), they are stacked concentrically as shown in Figure 1(b). Alternatively, as shown in FIG. 1(C), they may be overlapped in a saddle shape. As the superconductor constituting the annular superconducting molded body, NbTi, Nbz
Any of Sn, oxide-based superconductors, etc. may be used. In addition, the cyclic superconducting molded body is made of formal resin, amide-imide resin,
It may be insulated with glass epoxy resin or the like.
＊冷媒は超電導体の臨界温度により選定され、液体ヘリ
ウム、液体水素、液体窒素などがある。*The coolant is selected depending on the critical temperature of the superconductor, and includes liquid helium, liquid hydrogen, liquid nitrogen, etc.
本発明にて用いている永久電流の流れている環状超電導
成形体は以下のようにして得ることができる。The annular superconducting molded body through which a persistent current flows, which is used in the present invention, can be obtained as follows.
まず、常電導状態の環状超電導成形体を所要外′部磁場
中に配置して、該成形体内に磁束を導入し、そのままの
状態で臨界温度以下にするまで冷却する。前記成形体が
超電導状態になったところで外部磁場を除くと、磁束は
当該成形体内に捕捉されることにより永久電流の流れて
いる環状超電導成形体となる。First, an annular superconducting molded body in a normal conducting state is placed in a required external magnetic field, magnetic flux is introduced into the molded body, and the molded body is cooled as it is until the temperature falls below the critical temperature. When the external magnetic field is removed when the molded body is in a superconducting state, the magnetic flux is captured within the molded body, resulting in a ring-shaped superconducting molded body in which a persistent current flows.
以下図面に示した実施例に基づいて本発明を説明する。 The present invention will be described below based on embodiments shown in the drawings.
環状超電導成形体（１）は、Ｙ：Ｂａ ：Ｃｕ＝１ ：
２：３の組成を有するＹ−Ｂａ−Ｃｕ−０系超電導リン
グであり、その寸法は内径２６胴、外径４４ｍｍ、厚さ
３ＩＩＩＩｎである。前記超電導体リングを１０個重ね
、各リング間に絶縁体（２）（内径２６ｍｍ、外径４４
肛、厚さ０．５ｍｍ）を介在させて、締付は具（３）に
よりマグネットに構成する。前記マグネットを３００ガ
ウスの磁場中に配置し、そのまま液体窒素温度まで冷却
すると、各々の超電導リングには３１Ａに相当する永久
電流が流れた。マグネットの中心部にホール素子を配置
して磁場の強さを測定すると１１２ガウスであった。前
記マグネットを冷却状態のまま１週間放置しても、！」
喝の強さには全く変軸がなかった。The annular superconducting molded body (1) has Y:Ba:Cu=1:
It is a Y-Ba-Cu-0 based superconducting ring having a composition of 2:3, and its dimensions are an inner diameter of 26 mm, an outer diameter of 44 mm, and a thickness of 3 III In. Stack 10 of the superconductor rings, and insert an insulator (2) (inner diameter 26 mm, outer diameter 44 mm) between each ring.
The clamping device (3) is configured as a magnet with a hole (thickness 0.5 mm) interposed therebetween. When the magnet was placed in a magnetic field of 300 Gauss and cooled to liquid nitrogen temperature, a persistent current of 31 A flowed through each superconducting ring. When a Hall element was placed at the center of the magnet and the strength of the magnetic field was measured, it was 112 Gauss. Even if the magnet is left in a cooled state for a week! ”
There was no deviation in the strength of the shout.
［発明の効果］
以上説明したように本発明の超電導マグネットは、永久
電流の流れている環状超電導成形体を複数個組み合せて
なり、電流リードを有しないため、小さい単位マグネッ
トを組み合せて強力マグネットが作製可能であり、励磁
時の磁場の強さを変えることにより、完全な永久電流モ
ードで任意の磁場が得られるという優れた効果がある。[Effects of the Invention] As explained above, the superconducting magnet of the present invention is made by combining a plurality of annular superconducting molded bodies through which a persistent current flows, and does not have a current lead. Therefore, a strong magnet can be created by combining small unit magnets. It has the excellent effect that any magnetic field can be obtained in complete persistent current mode by changing the strength of the magnetic field during excitation.
第１図（ａ）、（ｂ）、（Ｃ）は本発明にかかる永久電
流の流れている種々の形状の環状超電導成形体の組み合
せ例を示したものであり、第２図は本発明にかかる超電
導マグネットの一実施例を示す図である。
（１）・・・永久電流の流れている環状超電導成形体、
（２）・・・絶縁体、 （３）・・・締付は具。FIGS. 1(a), (b), and (C) show examples of combinations of annular superconducting molded bodies of various shapes through which persistent current flows according to the present invention, and FIG. FIG. 3 is a diagram showing an example of such a superconducting magnet. (1)...An annular superconducting molded body through which a persistent current flows,
(2)...Insulator, (3)...Tightening tool.
Claims (3)
組み合せてなる、電流リードを有しないことを特徴とす
る超電導マグネット。(1) A superconducting magnet characterized by having no current leads, which is formed by combining a plurality of annular superconducting molded bodies through which a persistent current flows.
体が、少なくとも２μ以上の厚さを有する絶縁物質の介
在により、互いに分離配置されていることを特徴とする
特許請求の範囲第１項記載の超電導マグネット。(2) Claim 1, wherein the plurality of annular superconducting molded bodies through which persistent current flows are separated from each other by an intervening insulating material having a thickness of at least 2 μm or more. The superconducting magnet described.
体である特許請求の範囲第１項または第２項記載の超電
導マグネット。(3) The superconducting magnet according to claim 1 or 2, wherein the annular superconducting molded body is a ceramic superconducting molded body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10166587A JPS63268204A (en) | 1987-04-24 | 1987-04-24 | Superconducting magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10166587A JPS63268204A (en) | 1987-04-24 | 1987-04-24 | Superconducting magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63268204A true JPS63268204A (en) | 1988-11-04 |
Family
ID=14306667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10166587A Pending JPS63268204A (en) | 1987-04-24 | 1987-04-24 | Superconducting magnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63268204A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63283003A (en) * | 1987-05-15 | 1988-11-18 | Hitachi Ltd | Superconducting coil device |
| JPS641209A (en) * | 1987-06-23 | 1989-01-05 | Agency Of Ind Science & Technol | Superconductor magnet |
| KR101311459B1 (en) * | 2010-04-02 | 2013-10-14 | 주식회사 서남 | Supercunducting magnets and mathod of manufacturing the magnets |
| CN106298151A (en) * | 2016-10-10 | 2017-01-04 | 华北电力大学 | A kind of class bit superconducting magnet based on ReBCO coating |
| CN106298150A (en) * | 2016-09-13 | 2017-01-04 | 华北电力大学 | A kind of superconducting magnet based on ReBCO spiral coating conductor sheet and preparation method |
| CN106449006A (en) * | 2016-10-10 | 2017-02-22 | 华北电力大学 | Conduction cooling magnet based on ReBCO coating layer conductor sheet |
| CN106449004A (en) * | 2016-08-05 | 2017-02-22 | 华北电力大学 | Conduction cooling superconducting magnet based on ReBCo coating superconducting sheet |
| CN106449000A (en) * | 2016-08-05 | 2017-02-22 | 华北电力大学 | Superconducting magnet based on ReBCo coating superconducting sheet |
-
1987
- 1987-04-24 JP JP10166587A patent/JPS63268204A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63283003A (en) * | 1987-05-15 | 1988-11-18 | Hitachi Ltd | Superconducting coil device |
| JPS641209A (en) * | 1987-06-23 | 1989-01-05 | Agency Of Ind Science & Technol | Superconductor magnet |
| KR101311459B1 (en) * | 2010-04-02 | 2013-10-14 | 주식회사 서남 | Supercunducting magnets and mathod of manufacturing the magnets |
| CN106449004B (en) * | 2016-08-05 | 2018-07-31 | 华北电力大学 | A kind of conduction cooling superconducting magnet based on ReBCO coating superconducting pieces |
| CN106449004A (en) * | 2016-08-05 | 2017-02-22 | 华北电力大学 | Conduction cooling superconducting magnet based on ReBCo coating superconducting sheet |
| CN106449000A (en) * | 2016-08-05 | 2017-02-22 | 华北电力大学 | Superconducting magnet based on ReBCo coating superconducting sheet |
| CN106449000B (en) * | 2016-08-05 | 2018-06-22 | 华北电力大学 | A kind of superconducting magnet based on ReBCO coating superconducting pieces |
| CN106298150B (en) * | 2016-09-13 | 2018-07-31 | 华北电力大学 | A kind of superconducting magnet and preparation method based on ReBCO spiral coating conductor pieces |
| CN106298150A (en) * | 2016-09-13 | 2017-01-04 | 华北电力大学 | A kind of superconducting magnet based on ReBCO spiral coating conductor sheet and preparation method |
| CN106298151A (en) * | 2016-10-10 | 2017-01-04 | 华北电力大学 | A kind of class bit superconducting magnet based on ReBCO coating |
| CN106449006B (en) * | 2016-10-10 | 2018-06-22 | 华北电力大学 | A kind of conduction cooling magnet based on ReBCO coating conductor pieces |
| CN106298151B (en) * | 2016-10-10 | 2018-06-22 | 华北电力大学 | A kind of class bit superconducting magnet based on ReBCO coatings |
| CN106449006A (en) * | 2016-10-10 | 2017-02-22 | 华北电力大学 | Conduction cooling magnet based on ReBCO coating layer conductor sheet |
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