JPS6341504B2 - - Google Patents
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- Publication number
- JPS6341504B2 JPS6341504B2 JP57148201A JP14820182A JPS6341504B2 JP S6341504 B2 JPS6341504 B2 JP S6341504B2 JP 57148201 A JP57148201 A JP 57148201A JP 14820182 A JP14820182 A JP 14820182A JP S6341504 B2 JPS6341504 B2 JP S6341504B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- conductor
- diameter side
- coil
- inner diameter
- 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
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
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
Landscapes
- Plasma Technology (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Discharge Heating (AREA)
Description
【発明の詳細な説明】
本発明は磁場閉じ込め方式の核融合装置に使用
する磁場コイルの改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in magnetic field coils used in magnetic field confinement type nuclear fusion devices.
一般に、核融合（実験）装置におけるプラズマ
閉じ込め方式としては、慣性閉じ込め方式と磁場
閉じ込め方式があり、後者が多く採用されてい
る。この磁場閉じ込め方式は、磁場をプラズマ中
に生成しその磁気圧によつてプラズマを閉じ込め
るものである。 In general, plasma confinement methods in nuclear fusion (experimental) devices include an inertial confinement method and a magnetic field confinement method, and the latter is often adopted. This magnetic field confinement method generates a magnetic field in plasma and confines the plasma using the magnetic pressure.
一方、かかる磁場を生成するための磁場コイル
としては、従来確実なプラズマ閉じ込めを行なう
必要性がある観点から、軸（コイル軸）対称性の
良い磁場を得ることの可能な円形磁場コイルが用
いられている。 On the other hand, as a magnetic field coil for generating such a magnetic field, from the viewpoint of the need to ensure reliable plasma confinement, a circular magnetic field coil that can obtain a magnetic field with good axis (coil axis) symmetry has been conventionally used. ing.
第１図、第２図は、この種の円形コイル、スパ
イラル巻きコイルの構成を示すものである。図に
おいて、１は素線絶縁したコイル導体、２はター
ン間渡り部、３は層間渡り部、４，５はコイルの
口出を示すものであり、またαはターン間渡り部
２の角度、βは層間渡り部３の角度である。ここ
では、対地絶縁は省略してある。２個のパンケー
キからなるこの例では、電流は口出４、導体１、
ターン間渡り部２、層間渡り部３、ターン間渡り
部２、導体１…、口出５の順に流れ、コイル内に
磁場Ｂを生成する。 FIGS. 1 and 2 show the configuration of this type of circular coil and spiral-wound coil. In the figure, 1 is the wire-insulated coil conductor, 2 is the transition between turns, 3 is the transition between layers, 4 and 5 are the exits of the coil, and α is the angle of the transition between turns 2, β is the angle of the interlayer transition portion 3. Here, ground insulation is omitted. In this example of two pancakes, the current flows through outlet 4, conductor 1,
It flows in the order of the inter-turn transition portion 2, the inter-layer transition portion 3, the inter-turn transition portion 2, the conductor 1, . . . , the outlet 5, and generates a magnetic field B within the coil.
ところで、軸対称性の良い磁場を発生して完全
なプラズマ閉じ込めを行なうためには、導体１を
円形状に巻線する必要があるが、上記の層間渡り
部３、ターン間渡り部２が円形状からはずれた形
状となつている、つまり局部的に直線部分が存在
するため、その近辺では、歪んだ磁場（誤差磁
場）となり、全体として軸対称性の良い磁場を得
ることができないという問題がある。 By the way, in order to generate a magnetic field with good axial symmetry and achieve complete plasma confinement, it is necessary to wind the conductor 1 in a circular shape. Since the shape is deviated from the shape, that is, there are local straight parts, the magnetic field becomes distorted (error magnetic field) in the vicinity, and there is a problem that it is not possible to obtain a magnetic field with good axial symmetry as a whole. be.
本発明は上記のような問題を解消するために成
されたもので、その目的は誤差磁場を少なくして
軸対称性の良い磁場を生成することができまた機
械的強度に優れた核融合装置用磁場コイルを提供
することにある。 The present invention was made to solve the above problems, and its purpose is to create a nuclear fusion device that can reduce the error magnetic field, generate a magnetic field with good axial symmetry, and has excellent mechanical strength. The purpose of the present invention is to provide a magnetic field coil for
上記の目的を達成するために本発明では、導体
を複数回巻回し円形状に成形してなる磁場閉じ込
め方式の核融合装置用の磁場コイルにおいて、最
内径側の導体を略スパイラル状に成形すると共に
当該成形導体の外径側に導体を順次巻回してなる
パンケーキを複数積層し、かつ最内径側導体の内
径側に、その内径側形状が略円形で外径側形状が
最内径側導体に見合つたスパイラル形状を有する
スペーサを配置して構成している。 In order to achieve the above object, in the present invention, in a magnetic field coil for a magnetic field confinement type fusion device in which a conductor is wound multiple times and formed into a circular shape, the innermost conductor is formed into a substantially spiral shape. At the same time, a plurality of pancakes formed by sequentially winding conductors are laminated on the outer diameter side of the molded conductor, and on the inner diameter side of the innermost conductor, the inner diameter side shape is approximately circular and the outer diameter side shape is the innermost diameter side conductor. It is constructed by arranging spacers having a spiral shape corresponding to the size of the spacer.
以下、本発明を図面に示す一実施例について説
明する。第３図は本発明による磁場コイルの構成
例を示す図、第４図は第３図におけるスペーサを
示す図、第５図は第３図のＡ矢視図、第６図は第
３図におけるＹ―Y′断面図を夫々示すものであ
る。 An embodiment of the present invention shown in the drawings will be described below. 3 is a diagram showing a configuration example of a magnetic field coil according to the present invention, FIG. 4 is a diagram showing a spacer in FIG. 3, FIG. 5 is a view in the direction of arrow A in FIG. 3, and FIG. Each figure shows a YY' cross-sectional view.
図において、本磁場コイルは以下のように構成
する。つまり、導体１０を複数回巻回し円形状に
成形して成るコイルの、最内径側の導体１０を略
スパイラル状に成形し、且つ該成形導体の外径側
に導体を順次巻回して成るパンケーキを複数積層
する。さらに、上記最内径側導体１０の内径側
に、その内径側形状が略円形で且つ外径側形状が
上記最内径側導体１０に見合つた、第４図のよう
なスパイラル形状の絶縁物よりなるターン間渡り
部のスペーサ１１を配置して構成する。 In the figure, the present magnetic field coil is constructed as follows. In other words, in a coil formed by winding a conductor 10 multiple times and forming it into a circular shape, the innermost conductor 10 is formed into a substantially spiral shape, and the conductor is sequentially wound around the outer diameter of the formed conductor. Stack multiple cakes. Further, on the inner diameter side of the innermost conductor 10, an insulating material having a spiral shape as shown in FIG. It is constructed by arranging spacers 11 at the transition portions between turns.
ここで、本磁場コイルはコイル軸に対する導体
１０の位置が、(1)式にて表わされる位置にくるよ
うにスパイラル巻きするものである。 Here, this magnetic field coil is spirally wound so that the position of the conductor 10 with respect to the coil axis is at the position expressed by equation (1).
ｒ＝r0＋ｔ・θ／2π …(1)
r0：コイル内径
ｔ：導体１０の厚さ
θ：角度（ラジアン）
かかる如く構成したスパイラル巻きの磁場コイ
ルにおいては、パンケーキ自体のターン間渡り部
が、(1)式に従つて周方向に連続的に分崎すること
になり誤差磁場も周方向に分散される。このた
め、誤差磁場を著しく少なくして磁場の軸対称性
が大幅に良くなる。換言すれば、ダブルパンケー
キ構成としているため、周方向に分散された誤差
磁場が互いのパンケーキで打消し合う様に作用す
ることになり、磁場の軸対称性が極めて良くな
る。このことは、しいてはかかる磁場コイルを用
いて製作した核融合装置における磁場精度を向上
させて、完全なプラズマの閉じ込めを可能なもの
とするものである。さらにスペーサ１１を設けて
いるため、コイル最内径側の導体１０が電磁力に
よつて移動または変形することを確実に防止して
機械的強度を向上させ得る。そしてまた、スペー
サ１１の内径側形状は円形としているため、磁場
コイル中心の位置をプラズマに対して容易に調整
することができるものである。 r=r 0 +t・θ/2π …(1) r 0 : Coil inner diameter t : Thickness of conductor 10 θ : Angle (radian) In the spirally wound magnetic field coil configured as above, the transition between turns of the pancake itself Since the magnetic field is continuously distributed in the circumferential direction according to equation (1), the error magnetic field is also dispersed in the circumferential direction. Therefore, the error magnetic field is significantly reduced and the axial symmetry of the magnetic field is greatly improved. In other words, since it has a double pancake configuration, the error magnetic fields dispersed in the circumferential direction act so as to cancel each other out with each other's pancakes, and the axial symmetry of the magnetic field is extremely improved. This, in turn, improves the precision of the magnetic field in a nuclear fusion device manufactured using such a magnetic field coil, making complete plasma confinement possible. Furthermore, since the spacer 11 is provided, the conductor 10 on the innermost side of the coil can be reliably prevented from moving or deforming due to electromagnetic force, thereby improving mechanical strength. Moreover, since the shape of the inner diameter side of the spacer 11 is circular, the position of the center of the magnetic field coil can be easily adjusted with respect to the plasma.
このように、導体１０を複数回巻回し円形状に
成形してなる磁場閉じ込め方式の核融合装置用の
磁場コイルにおいて、最内径側の導体１０を略ス
パイラル状に成形すると共に該成形導体１０の外
径側に導体を順次巻回してなるパンケーキを複数
積層し、且つ上記最内径側導体１０の内径側にそ
の内径側形状が略円形で外径側形状が上記最内径
側導体１０に見合つたスパイラル形状を有するス
ペーサ１１を配置して核融合装置用の磁場コイル
を構成するようにしたものである。 In this way, in a magnetic field coil for a magnetic confinement type nuclear fusion device in which the conductor 10 is wound a plurality of times and formed into a circular shape, the innermost conductor 10 is formed into a substantially spiral shape, and the formed conductor 10 is formed into a substantially spiral shape. A plurality of pancakes formed by sequentially winding conductors on the outer diameter side are laminated, and on the inner diameter side of the innermost conductor 10, the shape of the inner diameter side is approximately circular and the shape of the outer diameter side corresponds to the innermost diameter side conductor 10. Spacers 11 having a spiral shape are arranged to constitute a magnetic field coil for a nuclear fusion device.
従つて、次のような効果が得られるものであ
る。 Therefore, the following effects can be obtained.
(1) 円形コイルをスパイラル巻き構成にしたの
で、ターン間の渡り部が周方向に一様に分散さ
れる。このため、誤差磁場も周方向に一様に分
散されることになり、生成される磁場の軸対称
性が極めて良くなり完全なプラズマ閉じ込めが
行ない得る。換言すれば、スパイラル巻き構成
でダブルパンケーキ巻きで構成した本円形コイ
ルは、各々のパンケーキが誤差磁場を打消し合
うことにより、磁場の軸対称性が良好なものに
なる。(1) Since the circular coil is spirally wound, the transition areas between turns are uniformly distributed in the circumferential direction. Therefore, the error magnetic field is also uniformly distributed in the circumferential direction, and the axial symmetry of the generated magnetic field is extremely good, allowing complete plasma confinement. In other words, in this circular coil configured with double pancake winding in a spiral winding configuration, each pancake cancels out the error magnetic field, so that the axial symmetry of the magnetic field is good.
(2) スペーサ１１を配置したので、コイル内には
ギヤツプがなく、しかもその内径側は完全な円
形となるため、機械的に強固なものとなり且つ
プラズマに対する位置調整の容易なコイルを得
ることができる。(2) Since the spacer 11 is arranged, there is no gap inside the coil, and the inner diameter side is completely circular, making it possible to obtain a coil that is mechanically strong and whose position relative to the plasma can be easily adjusted. can.
尚、本発明は上記実施例に限定されるものでは
ない。 Note that the present invention is not limited to the above embodiments.
(i) 導体１０のコイル軸に対する位置は、(1)式を
近似したものでもよい。すなわち、(2)式で与え
られる一般関数が許容される。(i) The position of the conductor 10 with respect to the coil axis may be approximated by equation (1). That is, the general function given by equation (2) is allowed.
ｒ＝r0＋（θ） …(2)
但し、（θ）として
｜（θ）−（θ−π）−ｔ／２｜ｔ／５
(ii) スペーサ１１の材料として、金属を用いるよ
うにしてもよい。 r=r 0 + (θ) …(2) However, as (θ) |(θ)−(θ−π)−t/2|t/5 (ii) Metal is used as the material of the spacer 11. It's okay.
(iii) スペーサ１１は、コイル導体１０の素線絶縁
内に巻き込んでもよい。(iii) The spacer 11 may be wound within the wire insulation of the coil conductor 10.
(iv) 最内径側の導体１０の厚さt1を(3)式のように
選定することにより、スペーサ１１を省略する
ことができる。第７図ａ，ｂの１２にその形状
の１例を示す。(iv) By selecting the thickness t 1 of the innermost conductor 10 as shown in equation (3), the spacer 11 can be omitted. An example of the shape is shown at 12 in FIGS. 7a and 7b.
t1＝ｔ＋（θ） …(3)
（θ）は(2)式により、０θ2πとす
る。 t 1 =t+(θ) (3) (θ) is set to 0θ2π according to equation (2).
(v) スペーサ１１の代わりに、第８図の13に示す
ような外径側をスパイラル状、内径側は円形状
とした一体物とし、その外側に巻線することも
可能である。(v) Instead of the spacer 11, it is also possible to use an integral body with a spiral shape on the outer diameter side and a circular shape on the inner diameter side, as shown at 13 in FIG. 8, and wind the wire on the outside thereof.
以上説明したように本発明によれば、最内径側
の導体を略スパイラル状に成形すると共に当該成
形導体の外径側に導体を順次巻回してなるパンケ
ーキを複数積層し、かつ最内径側導体の内径側
に、その内径側形状が略円形で外径側形状が最内
径側導体に見合つたスパイラル形状を有するスペ
ーサを配置して構成するようにしたので、誤差磁
場を少なくして軸対称性の極めて良好な磁場を生
成することができ、また機械的強度に優れ、しか
もプラズマに対する位置調整が容易な信頼性の高
い核融合装置用磁場コイルが提供できる。 As explained above, according to the present invention, a conductor on the innermost diameter side is formed into a substantially spiral shape, and a plurality of pancakes each formed by sequentially winding the conductor on the outer diameter side of the formed conductor are laminated, and By arranging a spacer on the inner diameter side of the conductor, the spacer has an approximately circular shape on the inner diameter side and a spiral shape on the outer diameter side that matches the innermost conductor, thereby reducing the error magnetic field and achieving axial symmetry. It is possible to provide a highly reliable magnetic field coil for a nuclear fusion device that can generate a magnetic field with extremely good properties, has excellent mechanical strength, and is easy to adjust its position relative to the plasma.
第１図は従来方式の磁場コイルを示す図、第２
図はスパイラル巻きコイルの概念を示す図、第３
図は本発明の磁場コイルの一実施例を示す構成
図、第４図はスペーサを示す図、第５図は第３図
のＡ矢視図、第６図は第３図のＹ―Y′断面図、
第７図ａ，ｂおよび第８図は本発明の他の実施例
を示す構成図である。
１……コイルの導体、２……ターン間渡り部、
３……層間渡り部、１１……ターン間渡り部の
（縁縁）スペーサ。
Figure 1 shows a conventional magnetic field coil, Figure 2 shows a conventional magnetic field coil.
The figure shows the concept of a spiral-wound coil.
The figure is a configuration diagram showing one embodiment of the magnetic field coil of the present invention, FIG. 4 is a diagram showing a spacer, FIG. 5 is a view taken in the direction of arrow A in FIG. 3, and FIG. cross section,
FIGS. 7a and 7b and FIG. 8 are configuration diagrams showing other embodiments of the present invention. 1... Conductor of the coil, 2... Transition between turns,
3...Interlayer transition portion, 11...Inter-turn transition portion (edge) spacer.
Claims (1)
場閉じ込め方式の核融合装置用の磁場コイルにお
いて、最内径側の導体を略スパイラル状に成形す
ると共に当該成形導体の外径側に導体を順次巻回
してなるパンケーキを複数積層し、かつ前記最内
径側導体の内径側に、その内径側形状が略円形で
外径側形状が前記最内径側導体に見合つたスパイ
ラル形状を有するスペーサを配置して構成したこ
とを特徴とする核融合装置用磁場コイル。1. In a magnetic field coil for a magnetic confinement type nuclear fusion device, which is formed by winding a conductor multiple times and forming it into a circular shape, the innermost conductor is formed into a substantially spiral shape, and a conductor is placed on the outer diameter side of the formed conductor. A spacer is provided in which a plurality of sequentially wound pancakes are laminated, and the inner diameter side of the innermost conductor has a substantially circular shape on the inner diameter side and a spiral shape on the outer diameter side that matches the inner diameter side conductor. A magnetic field coil for a nuclear fusion device, characterized in that it is arranged and configured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57148201A JPS5937487A (en) | 1982-08-26 | 1982-08-26 | Magnetic field coil for nuclear fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57148201A JPS5937487A (en) | 1982-08-26 | 1982-08-26 | Magnetic field coil for nuclear fusion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5937487A JPS5937487A (en) | 1984-02-29 |
| JPS6341504B2 true JPS6341504B2 (en) | 1988-08-17 |
Family
ID=15447515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57148201A Granted JPS5937487A (en) | 1982-08-26 | 1982-08-26 | Magnetic field coil for nuclear fusion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5937487A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5191846B2 (en) * | 2008-09-17 | 2013-05-08 | 株式会社日立産機システム | Circular multi-stage coil and winding method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5640785A (en) * | 1979-09-10 | 1981-04-17 | Hitachi Ltd | Nuclear fusion device coil |
| JPS56103900A (en) * | 1980-01-23 | 1981-08-19 | Hitachi Ltd | Electromagnetic coil for nuclear fusion reactor |
-
1982
- 1982-08-26 JP JP57148201A patent/JPS5937487A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5937487A (en) | 1984-02-29 |
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