JPS6348401B2 - - Google Patents
Info
- Publication number
- JPS6348401B2 JPS6348401B2 JP7430182A JP7430182A JPS6348401B2 JP S6348401 B2 JPS6348401 B2 JP S6348401B2 JP 7430182 A JP7430182 A JP 7430182A JP 7430182 A JP7430182 A JP 7430182A JP S6348401 B2 JPS6348401 B2 JP S6348401B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- superconductor
- coil
- copper
- superconducting coil
- 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
Links
- 239000002887 superconductor Substances 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- 239000003507 refrigerant Substances 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 229910020012 Nb—Ti Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Description
【発明の詳細な説明】
この発明は超電導コイルに関し、特にその形状
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a superconducting coil, and particularly to its shape.
発明の背景と目的
超電導材は、従来の加工しやすいNb−Tiなど
の合金系にかわつて、臨界温度、臨界電流密度、
臨界磁界において優れた化合物系（たとえば
Nb3Sn）に移つてきている。Background and Purpose of the Invention Superconducting materials are capable of reducing critical temperatures, critical current densities, and
Compound systems that excel in critical magnetic fields (e.g.
Nb 3 Sn).
この化合物系の超電導材はたいへんもろいの
で、コイル状に形成するのが難しい。 This compound-based superconducting material is extremely brittle, so it is difficult to form it into a coil shape.
たとえば中空超電導体を作る場合、Nb−Ti線
の場合のように、平角銅管の回りに超電導線を巻
回するかあるいは埋込んだ後、コイル状に巻くと
いう方法をとることができない。 For example, when making a hollow superconductor, it is not possible to wind the superconducting wire around a rectangular copper tube or embed it and then wind it into a coil, as is the case with Nb-Ti wire.
そこで、化合物系の場合は、製造の途中でヒズ
ミを与えないように、最終コイルの形状で、中空
銅管と超電導体とを一体化しなければならず、製
造が非常に難しい。 Therefore, in the case of compound-based coils, the hollow copper tube and the superconductor must be integrated in the final coil shape to avoid distortion during the manufacturing process, which is extremely difficult to manufacture.
この発明は上記の問題を解決し、全くヒズミの
ない状態で製造することのできる構造を持つ、超
電導コイルの提供を目的とするものである。 The object of the present invention is to solve the above problems and provide a superconducting coil having a structure that can be manufactured without any distortion.
発明の構成（第１、第２図）
表面が平らであつて、かつその表面が銅などの
常電導体によつて構成される基板１２上に、細い
帯状の超電導体２０が、うず巻き状に形成されて
いること、
を特徴とする。Structure of the Invention (Figures 1 and 2) A thin strip-shaped superconductor 20 is arranged in a spiral shape on a substrate 12 whose surface is flat and made of a normal conductor such as copper. It is characterized by being formed.
より詳しい説明
「第１図」および「第２図」において、１０Ａ
は超電導コイルの全体を示す。More detailed explanation In "Figure 1" and "Figure 2", 10A
shows the entire superconducting coil.
１２はその基板で、たとえばステンレス１４の
薄い板の上に、銅１６などの常電導体の薄い層を
一体に形成したものである。銅１６の層は安定化
層としての働きをする。また銅１６の層の表面は
平らである。 Reference numeral 12 designates the substrate, for example, a thin plate of stainless steel 14, on which a thin layer of a normal conductor such as copper 16 is integrally formed. The layer of copper 16 acts as a stabilizing layer. Also, the surface of the copper 16 layer is flat.
この基板１２の全体の形は、たとえばドーナツ
型で、中心部に孔１８が設けられている。 The overall shape of this substrate 12 is, for example, a donut shape, and a hole 18 is provided in the center.
２０は超電導体で、たとえばNb3Snであり、ミ
クロ的にみると、Nb層、Nb3Sn層およびSn層の
３層構造になつている。これは幅の狭い帯状のも
のである。 Reference numeral 20 denotes a superconductor, for example Nb 3 Sn, which, when viewed microscopically, has a three-layer structure of an Nb layer, a Nb 3 Sn layer, and a Sn layer. This is a narrow strip.
またこの超電導体２０は、「第１図」のように、
内側の端２２から外側の端２４まで連続した１筋
のものが、うず巻き状にされた形になつていて、
ハンダ２６（たとえばSn−Agハンダ）によつ
て、基板１２の銅１６の層の表面に接合されてい
る。 Moreover, this superconductor 20, as shown in "Fig. 1",
One continuous line from the inner end 22 to the outer end 24 has a spiral shape,
It is bonded to the surface of the copper 16 layer of the substrate 12 by solder 26 (eg, Sn--Ag solder).
この超電導コイル１０Ａはたとえば次のように
して作られる。 This superconducting coil 10A is made, for example, as follows.
すなわち、初め基板１２の銅１６の上の全面に
わたつて、超電導体２０の層をハンダ２６によつ
て接合しておく。そしてレコード盤のように、う
ず巻き状のみぞ２８（底が銅１６の層まで達す
る）を、切削などにより形成する。 That is, first, a layer of superconductor 20 is bonded over the entire surface of copper 16 of substrate 12 with solder 26. Then, like a record, a spiral groove 28 (the bottom reaches the layer of copper 16) is formed by cutting or the like.
すると、みぞ２８間の残つた部分が、超電導体
２０のコイルになる。 Then, the remaining portion between the grooves 28 becomes the coil of the superconductor 20.
なお超電導体２０は、「第３図」の超電導コイ
ル１０Ｂのように、両面に形成する場合もある。 Note that the superconductor 20 may be formed on both sides, as in the superconducting coil 10B shown in FIG. 3.
「第４図」は、上記の超電導コイル１０Ａ，１
０Ｂを多数重ねてコイルを構成した場合を示す。
この場合、各層のコイルを直列に接続する関係
上、各層のコイルのうず巻きの方向を、一層ごと
に逆にしている（同方向であると磁束が打ち消し
合う）。 "Figure 4" shows the above superconducting coil 10A, 1
A case is shown in which a coil is constructed by stacking a large number of 0Bs.
In this case, since the coils in each layer are connected in series, the spiral directions of the coils in each layer are reversed for each layer (if they are in the same direction, the magnetic fluxes cancel each other out).
この場合各超電導コイル１０Ａ，１０Ｂの超電
導体２０の間に少しギヤツプ３０ができるように
してある。また、向い合うみぞ２８の間が冷媒通
路３２になる。冷媒はその冷媒通路３２の中をた
とえば印３４のように流れると同時に、上記のギ
ヤツプ３０を、矢印３６のように半径方向にも流
れることができる。 In this case, a slight gap 30 is created between the superconductors 20 of each superconducting coil 10A, 10B. Further, the space between the facing grooves 28 becomes a refrigerant passage 32. While the refrigerant flows through the refrigerant passage 32, for example as indicated by mark 34, it can also flow radially, as indicated by arrow 36, through the gap 30 mentioned above.
なお、この発明は、化合物形超電導体２０の場
合だけでなく、Nb−Tiなどの合金系超電導材の
場合にも適用できる。 Note that the present invention is applicable not only to the compound superconductor 20 but also to alloy superconducting materials such as Nb-Ti.
発明の効果
(1) 超電導体２０が初めからコイル状になつてい
るので、ヒズミのない超電導コイルを作ること
ができる。Effects of the Invention (1) Since the superconductor 20 is coiled from the beginning, a distortion-free superconducting coil can be produced.
(2) 第４図のように重ねると、対向するギヤツプ
３０の間に冷媒通路３２が形成されるので、中
空の平角銅管が不要になる。(2) When stacked as shown in FIG. 4, a refrigerant passage 32 is formed between the opposing gaps 30, so a hollow rectangular copper tube becomes unnecessary.
(3) 冷媒が直接超電導体２０を冷却するので冷却
効率がよい。(3) Cooling efficiency is good because the refrigerant directly cools the superconductor 20.
(4) 第４図のようにギヤツプ３０ができるように
して重ねると、冷媒が半径方向にも流れるた
め、管内だけを長距離にわたつて冷媒を流す従
来の中空導体方式に比べて、流動抵抗がはるか
に減小し、冷却効果が増大する。(4) When stacked with a gap 30 as shown in Figure 4, the refrigerant flows in the radial direction as well, resulting in a higher flow resistance compared to the conventional hollow conductor method in which the refrigerant flows over long distances only inside the pipes. is much reduced and the cooling effect is increased.
図面は本発明に係り、第１図は平面図、第２図
は縦断立面図、第３図は両面に超電導体２０を形
成する場合の縦断立面図、第４図はコイルを構成
した場合の説明図。
１０Ａと１０Ｂ：超電導コイル、１２：基板、
１６：常電導体（たとえば銅）、２０：超電導体、
２８：みぞ。
The drawings relate to the present invention, and FIG. 1 is a plan view, FIG. 2 is a longitudinal sectional elevation, FIG. 3 is a longitudinal sectional elevation in the case where superconductors 20 are formed on both sides, and FIG. 4 is a coil configuring. An explanatory diagram of the case. 10A and 10B: superconducting coil, 12: substrate,
16: Normal conductor (e.g. copper), 20: Superconductor,
28: Groove.
Claims (1)
によつて構成される基板上に、 細い帯状の超電導体が、うず巻き状に形成され
ていること、 を特徴とする超電導コイル。[Claims] 1. A thin strip-shaped superconductor is formed in a spiral shape on a substrate that has a flat surface and is made of a normal conductor. superconducting coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7430182A JPS58191407A (en) | 1982-04-30 | 1982-04-30 | Superconducting coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7430182A JPS58191407A (en) | 1982-04-30 | 1982-04-30 | Superconducting coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58191407A JPS58191407A (en) | 1983-11-08 |
| JPS6348401B2 true JPS6348401B2 (en) | 1988-09-29 |
Family
ID=13543166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7430182A Granted JPS58191407A (en) | 1982-04-30 | 1982-04-30 | Superconducting coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58191407A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61225807A (en) * | 1985-03-29 | 1986-10-07 | Kobe Steel Ltd | Manufacture of superconductive coil |
| JPS6328854A (en) * | 1986-07-21 | 1988-02-06 | Mitsubishi Electric Corp | Production of superconductive coil |
| US4918409A (en) * | 1988-12-12 | 1990-04-17 | The Boeing Company | Ferrite device with superconducting magnet |
-
1982
- 1982-04-30 JP JP7430182A patent/JPS58191407A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58191407A (en) | 1983-11-08 |
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