JPH0464444B2 - - Google Patents
Info
- Publication number
- JPH0464444B2 JPH0464444B2 JP27226285A JP27226285A JPH0464444B2 JP H0464444 B2 JPH0464444 B2 JP H0464444B2 JP 27226285 A JP27226285 A JP 27226285A JP 27226285 A JP27226285 A JP 27226285A JP H0464444 B2 JPH0464444 B2 JP H0464444B2
- Authority
- JP
- Japan
- Prior art keywords
- winding
- pancake
- superconducting
- superconducting wire
- connecting piece
- 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 - Lifetime
Links
- 238000004804 winding Methods 0.000 claims description 45
- 235000012771 pancakes Nutrition 0.000 claims description 42
- 239000000463 material Substances 0.000 description 6
- 230000005856 abnormality Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Superconductive Dynamoelectric Machines (AREA)
- Coils Of Transformers For General Uses (AREA)
Description
【発明の詳細な説明】 〔発明の利用分野〕 本発明は、超電導線輪に関するものである。[Detailed description of the invention] [Field of application of the invention] The present invention relates to superconducting coils.
従来、テープ状の超電導線を用いたパンケーキ
形の超電導線輪は、１個の巻枠ボビンに一要素の
パンケーキコイル（以下、シングルパンケーキと
称する）を２ケ巻線した、所謂ダブルパンケーキ
を複数個積層して電気的な接続が施され、超電導
電磁石として使用される。
Conventionally, pancake-shaped superconducting coils using tape-shaped superconducting wires are so-called double coils, in which two pancake coils of one element (hereinafter referred to as single pancakes) are wound around one winding bobbin. Multiple pancakes are stacked together and electrically connected to be used as a superconducting electromagnet.
第５図にはダブルパンケーキの従来例が示され
ている。同図に示されているようにダブルパンケ
ーキは巻枠ボビン１上に超電導線を巻き回して形
成された２個のシングルパンケーキ２が、接続片
３を介して接続・積層されている。すなわち金属
間化合物系テープ状超電導線材で、例えばNb8Sn
やV3Gaを主体とした厚み0.05から0.5mm、幅５か
ら20mmの超電導線を数百ターン巻回してシングル
パンケーキにが形成されるが、ダブルパンケーキ
は次に述べるようにして製作される。 FIG. 5 shows a conventional example of a double pancake. As shown in the figure, the double pancake is made up of two single pancakes 2 formed by winding superconducting wire on a winding frame bobbin 1, which are connected and stacked together via a connecting piece 3. In other words, it is a tape-shaped superconducting wire material based on intermetallic compounds, such as Nb 8 Sn
A single pancake is formed by winding several hundred turns of superconducting wire, mainly composed of V 3 Ga and 0.05 to 0.5 mm thick and 5 to 20 mm wide, but double pancakes are manufactured as described below. Ru.
巻枠ボビン１の外表面で接続片３と超電導線と
を半田付け等により電気的、機械的に接続し、一
方のシングルパンケーキ２を巻線する。一方のシ
ングルパンケーキ２の巻線後はこのパンケーキ２
上にパンケーキ間スペーサ４を配し、更に他方の
シングルパンケーキ２を前述のそれと同様に接続
片３にその巻き始め端を接続した超電導線で巻線
形成する。このようにして１個の巻枠ボビン１上
にダブルパンケーキが形成されるが、シングルパ
ンケーキ２間は接続片３で接続されている。この
シングルパンケーキ２すなわちパンケーキコイル
の巻線方法としては特開昭55−77108号公報にも
示されているように、必ずシングルパンケーキ２
間の接続の部分すなわち接続片３の部分から巻き
始めるが、接続方法については各種の方法がとら
れている。 The connecting piece 3 and the superconducting wire are electrically and mechanically connected by soldering or the like on the outer surface of the winding frame bobbin 1, and one single pancake 2 is wound. After winding one single pancake 2, this pancake 2
An inter-pancake spacer 4 is placed on top, and the other single pancake 2 is wound with a superconducting wire whose winding start end is connected to the connecting piece 3 in the same manner as described above. In this way, double pancakes are formed on one winding frame bobbin 1, but the single pancakes 2 are connected by connecting pieces 3. The method of winding the single pancake 2, that is, the pancake coil, is as shown in Japanese Patent Application Laid-Open No. 77108/1983.
Winding starts from the connection between the two, that is, the connection piece 3, and various methods are used for the connection.
ところでこのようにして形成されたダブルパン
ケーキで、シングルパンケーキ２間接続部が弱点
となつている。すなわちシングルパンケーキ２の
巻始め部がシングルパンケーキ２間を接続する接
続片３なので、巻線張力が直接接続片３にかか
り、接続片３を破損し易い。この張力の影響をな
くすためには巻き始め部の張力を小さく設定しな
ければならないが、張力を小さく設定するとシン
グルパンケーキ２の最内周に緩みの出易い不安定
なものとなる。また、シングルパンケーキ２を複
数個接続・積層してなる超電導線輪を超電導電磁
石として使用する際には、発生する磁界の強さに
比例して図中矢印表示のように軸方向に強大な圧
縮電磁力がかかる。この場合にシングルパンケー
キ２間接続部は直接圧縮力による変位が生じ、変
形や変形による特性劣化および破損の重大な事故
を生じる要因となる。このような現象は超電導電
磁石の運転時に超電導状態から常電導状態に転移
する、所謂クエンチ発生の要因ともなり、超電導
電磁石としての性能を低下させる。 However, in the double pancake formed in this manner, the connection between the two single pancakes is a weak point. That is, since the winding start portion of the single pancake 2 is the connection piece 3 that connects the single pancakes 2, the winding tension is directly applied to the connection piece 3, which tends to damage the connection piece 3. In order to eliminate the influence of this tension, the tension at the beginning of winding must be set low, but if the tension is set low, the innermost circumference of the single pancake 2 is likely to become loose and unstable. In addition, when using a superconducting wire formed by connecting and stacking multiple single pancakes 2 as a superconducting electromagnet, a strong magnetic field is generated in the axial direction as shown by the arrow in the figure in proportion to the strength of the generated magnetic field. Compressive electromagnetic force is applied. In this case, the connecting portion between the single pancakes 2 is directly displaced by compressive force, which causes deterioration of characteristics and breakage due to deformation and deformation, which can lead to serious accidents. Such a phenomenon causes a transition from a superconducting state to a normal conducting state during operation of a superconducting electromagnet, which is a so-called quench occurrence, and deteriorates the performance of the superconducting electromagnet.
本発明は以上の点に鑑みなされたものであり、
パンケーキコイル間接続部が巻線張力および圧縮
力に耐えることを可能とした超電導線輪を提供す
ることを目的とするものである。
The present invention has been made in view of the above points,
It is an object of the present invention to provide a superconducting coil in which a connecting portion between pancake coils can withstand winding tension and compressive force.
すなわち本発明は巻枠ボビン上に超電導線を巻
回してパンケーキ状に形成されたパンケーキコイ
ルを、接続片で複数個接続・積層してなる超電導
線輪において、前記巻枠ボビンに前記超電導線の
巻き始め端を接続する接続用部片を埋設すると共
に、前記接続用部片間を前記接続片で接続したこ
とを特徴とするものであり、これによつて接続用
部片および接続片が巻線張力および圧縮力に耐え
るようになる。
That is, the present invention provides a superconducting coil formed by connecting and stacking a plurality of pancake coils formed in a pancake shape by winding a superconducting wire on a winding frame bobbin with connection pieces, in which the superconducting It is characterized by embedding a connecting piece that connects the winding start end of the wire and connecting the connecting pieces with the connecting piece, whereby the connecting piece and the connecting piece to withstand winding tension and compression forces.
以下、図示した実施例に基づいて本発明を説明
する。第１図から第４図には本発明の一実施例が
示されている。なお従来と同じ部品には同じ符号
を付したので説明を省略する。本実施例では巻枠
ボビン１ａに超電導線の巻き始め端を接続する接
続用部片５を埋設すると共に、接続用部片５間を
接続片３ａで接続した。このようにすることによ
り巻枠ボビン１ａに超電導線の巻き始め端を接続
する接続用部片５が埋設されると共に、接続用部
片５間は接続片３ａで接続されるようになつて、
接続用部片５および接続片３ａが巻線張力および
圧縮力に耐えるようになり、パンケーキコイル間
接続部が巻線張力および圧縮力に耐えることを可
能とした超電導線輪を得ることができる。
The present invention will be explained below based on the illustrated embodiments. An embodiment of the present invention is shown in FIGS. 1-4. Note that parts that are the same as those in the conventional system are given the same reference numerals, and therefore their explanations will be omitted. In this embodiment, a connecting piece 5 for connecting the winding start end of the superconducting wire is embedded in the winding frame bobbin 1a, and the connecting pieces 5 are connected by a connecting piece 3a. By doing this, the connection piece 5 for connecting the winding start end of the superconducting wire is buried in the winding frame bobbin 1a, and the connection pieces 5 are connected by the connection piece 3a.
The connecting piece 5 and the connecting piece 3a can withstand winding tension and compressive force, and a superconducting wire ring can be obtained in which the connection between pancake coils can withstand winding tension and compressive force. .
すなわち巻枠ボビン１ａに接続用部片５を埋設
したが、接続用部片５そのものの電気抵抗および
この部分での接続部電気抵抗をできる限り少なく
するため、巻枠ボビン強度の許す限り厚みｔを小
さく、幅Ｌおよび長さＷを大きくする。また場合
によつては接続用部片５の数を複数としてもよ
い。このようにして接続用部片５を設けた巻枠ボ
ビン１ａに巻回したシングルパンケーキ２は、そ
の巻き始め端が巻枠ボビン１ａに埋設した接続用
部片５と半田付け接続されているので、巻き始め
より規定の張力で巻線されるようになり、巻線部
に緩みのない安定した巻線ができるようになる。
また従来、シングルパンケーキ２間は巻線時にレ
ヤーシヨート等の異状が発生していても巻線後に
チエツクすることができないのみならず、その異
状に対する対策を行うこともできずに、ダブルパ
ンケーキが使用できなくなつてしまう。これに対
し本実施例の場合は第２図にも示されているよう
にシングルパンケーキ２としてでき上がるので、
裏，表共に異状部のチエツクが可能で、かつ異状
に対する対策も行い易くなり、各種の信頼性試験
実施後にシングルパンケーキ２の組立てが可能と
なる。また、接続用部片５間を接続片３ａで接続
するようにしたので、シングルパンケーキ２を重
ね合せた時点で雇，治具等によりその軸方向に、
運転時に加わる電磁力に同等または近似の圧縮力
を付加した状態で接続できるようになつて、運転
時に圧縮力がかかつても変位が殆んど生じないよ
うになり、シングルパンケーキ２間接続部の変形
や破損の発生が防止できる。このようにシングル
パンケーキ２間接続部の変形や破損の発生が防止
できるようになつたので、クエンチの発生が防止
でき、性能の安定した超電導線輪を得ることがで
きる。 That is, although the connecting piece 5 is embedded in the winding frame bobbin 1a, in order to minimize the electrical resistance of the connecting piece 5 itself and the electrical resistance of the connection at this part, the thickness t is set as low as the strength of the winding frame bobbin allows. is made smaller, and the width L and length W are made larger. Further, depending on the case, the number of connection pieces 5 may be plural. The single pancake 2 wound around the winding frame bobbin 1a provided with the connection piece 5 in this manner has its winding start end connected by soldering to the connection piece 5 embedded in the winding frame bobbin 1a. Therefore, the wire is wound with a specified tension from the beginning of winding, and stable winding with no looseness in the winding section can be achieved.
In addition, conventionally, even if an abnormality such as layer short occurs between two single pancakes during winding, it is not only impossible to check after winding, but also it is impossible to take countermeasures against the abnormality. It becomes unusable. On the other hand, in the case of this example, the single pancake 2 is completed as shown in FIG.
It is possible to check for abnormalities on both the back and front sides, and it is also easier to take countermeasures against abnormalities, making it possible to assemble the single pancake 2 after conducting various reliability tests. In addition, since the connecting pieces 5 are connected by the connecting piece 3a, when the single pancakes 2 are stacked on top of each other, the axial direction of the single pancakes 2 can be moved using a jig or the like.
It is now possible to connect with a compressive force equal to or similar to the electromagnetic force applied during operation, and almost no displacement occurs even if compressive force is applied during operation, and the connection between two single pancakes deformation and damage can be prevented. Since deformation and breakage of the connection between the single pancakes 2 can be prevented in this way, quenching can be prevented and a superconducting coil with stable performance can be obtained.
なお巻枠ボビン１ａは強度の点及び巻線部と電
気的にも接続されているので、超電導状態での通
電において殆んど電流を流し得ない電気抵抗の大
きいSUS材および真鍮などが適当である。一般
に機械的強度が高く、電気抵抗が銅より大きいも
のであれば材料として選定できるが、場合によつ
てはカーボン繊維を使用したFRP材のように、
金属以外のものであつてもよい。 In addition, since the winding frame bobbin 1a has strength and is electrically connected to the winding part, suitable materials such as SUS material or brass, which have high electrical resistance and cannot conduct current in a superconducting state, are suitable. be. In general, materials with high mechanical strength and electrical resistance greater than copper can be selected, but in some cases, such as FRP materials using carbon fiber,
It may be made of something other than metal.
また、巻枠ボビン１ａに埋設された接続用部片
５は直接超電導線と半田付けされ、かつその内周
面側に接続片３ａが半田付けされるが、超電導状
態における通電々流を非常に小さい抵抗で流す必
要があるので、無酸素銅のように電気抵抗の小さ
い材料が選定される。 Furthermore, the connecting piece 5 buried in the winding frame bobbin 1a is directly soldered to the superconducting wire, and the connecting piece 3a is soldered to the inner peripheral surface of the connecting piece 5. Since it is necessary to flow with low resistance, a material with low electrical resistance, such as oxygen-free copper, is selected.
上述のように本発明はパンケーキコイル間接続
部が巻線張力および圧縮力に耐えられるよになつ
て、パンケーキコイル間接続部が巻線張力および
圧縮力に耐えることを可能とした超電導線輪を得
ることができる。
As described above, the present invention provides a superconducting wire in which the connection between pancake coils can withstand winding tension and compression, and the connection between pancake coils can withstand winding tension and compression. You can get a ring.
第１図は本発明の超電導線輪の一実施例の一部
破断斜視図、第２図は同じく一実施例のシングル
パンケーキの一部破断斜視図、第３図は同じく一
実施例の巻枠ボビンの斜視図、第４図は第２図の
イ枠部の拡大一部破断斜視図、第５図は従来の超
電導線輪の一部破断斜視図である。
１ａ……巻枠ボビン、２……シングルパンケー
キ（パンケーキコイル）、３ａ……接続片、５…
…接続用部片。
FIG. 1 is a partially cutaway perspective view of an embodiment of the superconducting wire of the present invention, FIG. 2 is a partially cutaway perspective view of a single pancake of the same embodiment, and FIG. 3 is a winding of the same embodiment. FIG. 4 is an enlarged partially cutaway perspective view of the frame portion of FIG. 2, and FIG. 5 is a partially cutaway perspective view of a conventional superconducting coil. 1a... Winding frame bobbin, 2... Single pancake (pancake coil), 3a... Connection piece, 5...
...Connection piece.
Claims (1)
キ状に形成されたパンケーキコイルを、接続片で
複数個接続・積層してなる超電導線輪において、
前記巻枠ボビンに前記超電導線の巻き始め端を接
続する接続用部片を埋設すると共に、前記接続用
部片間を前記接続片で接続したことを特徴とする
超電導線輪。1. In a superconducting wire ring made by connecting and stacking a plurality of pancake coils formed in a pancake shape by winding superconducting wire on a winding frame bobbin using connecting pieces,
A superconducting wire ring characterized in that a connecting piece for connecting a winding start end of the superconducting wire is embedded in the winding frame bobbin, and the connecting pieces are connected by the connecting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27226285A JPS62131505A (en) | 1985-12-03 | 1985-12-03 | superconducting wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27226285A JPS62131505A (en) | 1985-12-03 | 1985-12-03 | superconducting wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62131505A JPS62131505A (en) | 1987-06-13 |
| JPH0464444B2 true JPH0464444B2 (en) | 1992-10-15 |
Family
ID=17511393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27226285A Granted JPS62131505A (en) | 1985-12-03 | 1985-12-03 | superconducting wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62131505A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5274983B2 (en) * | 2008-10-31 | 2013-08-28 | 株式会社東芝 | Superconducting coil device |
| JP5887085B2 (en) * | 2011-08-11 | 2016-03-16 | 株式会社フジクラ | Superconducting coil and manufacturing method thereof |
| JP7710977B2 (en) * | 2021-12-21 | 2025-07-22 | 株式会社東芝 | High-temperature superconducting coil device and stacked-type high-temperature superconducting coil device |
-
1985
- 1985-12-03 JP JP27226285A patent/JPS62131505A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62131505A (en) | 1987-06-13 |
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