JPS6337352B2 - - Google Patents
Info
- Publication number
- JPS6337352B2 JPS6337352B2 JP55005791A JP579180A JPS6337352B2 JP S6337352 B2 JPS6337352 B2 JP S6337352B2 JP 55005791 A JP55005791 A JP 55005791A JP 579180 A JP579180 A JP 579180A JP S6337352 B2 JPS6337352 B2 JP S6337352B2
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- cooling
- groove
- connecting groove
- cross
- 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
- Coils Of Transformers For General Uses (AREA)
Description
【発明の詳細な説明】
本発明は電磁線輪に係り、特にうず巻き形状に
多重巻回された導体の巻回面に、この導体を直接
冷却する冷却溝を備えているものに好適な電磁線
輪に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electromagnetic wire, and in particular to an electromagnetic wire suitable for a wire having cooling grooves on the winding surface of a conductor multi-wound in a spiral shape to directly cool the conductor. Concerning rings.
例えば、核融合装置に用いられるトロイダルコ
イル等の電磁線輪においては、大電流のためにコ
イル導体温度が著しく上昇して、導体間のレヤ絶
縁、あるいは対地絶縁の絶縁材料が高熱、および
熱伸びによつて破壊、もしくは劣化し、さらに導
体自体も大きな熱応力や核融合装置の起動−停止
時に発生する大きな電磁応力によつて破断するお
それがある。 For example, in electromagnetic coils such as toroidal coils used in nuclear fusion devices, the temperature of the coil conductor rises significantly due to the large current, causing the layer insulation between the conductors or the insulation material for ground insulation to heat up and expand. Furthermore, there is a risk that the conductor itself may break due to large thermal stress or large electromagnetic stress generated when starting and stopping the fusion device.
したがつて、第１図、および第２図に示すよう
に、この種電磁線輪１にあつては、多重巻回され
た導体２の巻回面に、その巻き方向に沿つて冷却
溝５を形成し、この溝中に冷却媒体としての水を
通過させる冷却管（図示せず）を埋設して電磁線
輪１全体を直接冷却する方法が一般にとられてい
る。すなわち、冷却水は、第２図に示すように入
口A1から供給され、矢印方向に循環されて導体
２、レヤ絶縁３等を冷却し出口A2から排出され
る。しかし、この方法では、冷却水の水路長（冷
却距離）が長くなつて、入口A1と出口A2とでは
大きな温度差が生じ、全体にわたつて充分な冷却
効果を得ることはできない。また、冷却水の流
量、および流速の増大による冷却効率の改善は冷
却管の腐食の問題のためにおのずと限界がある。
かかる欠点を解消するためには第３図に示すよう
に、冷却溝５を多設並設したり、さらに、かかる
配列において、相隣る冷却溝５の冷却水の流れを
互いに逆向きにすることも考えられる。しかし、
この場合は多数の冷却溝５を形成するために導体
２の断面積が減少し、核融合装置運転時における
巻線方向の電磁力によつて、導体２に大きな引張
応力が加えられることになる。 Therefore, as shown in FIGS. 1 and 2, in this type of electromagnetic coil 1, cooling grooves 5 are formed on the winding surface of the multi-wound conductor 2 along the winding direction. Generally, a method is used in which the entire electromagnetic wire ring 1 is directly cooled by forming a cooling pipe (not shown) in which water as a cooling medium passes through the groove. That is, as shown in FIG. 2, cooling water is supplied from an inlet A1 , circulated in the direction of the arrow to cool the conductor 2, layer insulation 3, etc., and then discharged from an outlet A2 . However, in this method, the length of the cooling water channel (cooling distance) becomes long, and a large temperature difference occurs between the inlet A1 and the outlet A2 , making it impossible to obtain a sufficient cooling effect over the entire area. Furthermore, improvements in cooling efficiency by increasing the flow rate and flow velocity of cooling water naturally have a limit due to the problem of corrosion of cooling pipes.
In order to eliminate this drawback, as shown in FIG. 3, it is necessary to arrange multiple cooling grooves 5 in parallel, and furthermore, in such an arrangement, the flow of cooling water in adjacent cooling grooves 5 should be made to flow in opposite directions. It is also possible. but,
In this case, the cross-sectional area of the conductor 2 is reduced due to the formation of a large number of cooling grooves 5, and a large tensile stress is applied to the conductor 2 due to electromagnetic force in the winding direction during operation of the fusion device. .
したがつて、有効に冷却するためには、導体内
部の冷却水の水路長を短縮すればよい。このよう
な電磁線輪の配置を第４図に示す。図中冷却水の
水路は、導体２の１ターン毎に区分されて巻き方
向Ｐに沿つて形成されており、各水路長には夫々
の入口B1，C1，D1および出口B2，C2，D2が付設
されている。すなわち、第５図に示すように、導
体２の巻回面に、その巻き方向に水平に形成され
た冷却溝５は各ターン終端部における側面に設け
られた冷却媒体の出口７に対して、巻き方向と直
角に形成された連結溝６によつて連通されてお
り、また、引きつづくターンの始端部における側
面に設けられた冷却媒体の入口８に対して、連結
溝６を介して次の水路の冷却溝５が連通されてい
る。このような冷却溝５の配置によれば、冷却水
の水路長を任意に短縮して設定することができる
が、そのためには、図示のように各水路の冷却媒
体の入口８、および出口７について連結溝６を形
成することが必要となる。しかしながら、このよ
うな構成だと、第６図に示すように、上記連結溝
６の形成部では導体２の断面積が冷却溝５の形成
部に比較して著しく減少し、前述した核融合装置
の起動−停止時の電磁力によつてこの部分に極め
て大きな引張応力を生じることとなる。この結
果、導体２の前記断面減少部分には、起動−停止
のくり返しによつてクラツクが発生し、遂には破
断に到る危険が考えられる。また、特に核融合装
置では、前記電磁線輪がその他の電磁線輪、なら
びに構成部品と複雑に組合されているので、一旦
故障を生じるとその交換、修理が容易ではなく、
したがつて、前記電磁線輪の冷却溝の形成にもよ
り高い信頼性が要求される。 Therefore, in order to effectively cool the conductor, the length of the cooling water channel inside the conductor may be shortened. The arrangement of such an electromagnetic wire ring is shown in FIG. In the figure, the cooling water channel is divided into sections for each turn of the conductor 2 and formed along the winding direction P, and each channel length has a respective inlet B 1 , C 1 , D 1 and outlet B 2 , C 2 and D 2 are attached. That is, as shown in FIG. 5, the cooling grooves 5 formed on the winding surface of the conductor 2 horizontally in the winding direction are connected to the cooling medium outlet 7 provided on the side surface at the end of each turn. The connection groove 6 formed perpendicular to the winding direction communicates with the cooling medium inlet 8 provided on the side surface at the starting end of the successive turn. The cooling grooves 5 of the water channels are in communication. According to the arrangement of the cooling grooves 5, the length of the cooling water channel can be arbitrarily shortened. It is necessary to form a connecting groove 6 for each. However, with such a configuration, as shown in FIG. 6, the cross-sectional area of the conductor 2 is significantly reduced in the area where the connecting groove 6 is formed compared to the area where the cooling groove 5 is formed, and the fusion device described above is An extremely large tensile stress is generated in this part due to electromagnetic force during starting and stopping. As a result, there is a risk that cracks will occur in the reduced cross-section portion of the conductor 2 due to repeated starting and stopping, which may eventually lead to breakage. In addition, especially in nuclear fusion devices, the electromagnetic wire is complexly combined with other electromagnetic wires and component parts, so once a failure occurs, it is difficult to replace or repair it.
Therefore, higher reliability is also required in the formation of the cooling grooves of the electromagnetic wire ring.
本発明は上述の点に鑑み成されたもので、その
目的とするところは、導体の巻回面に冷却溝と連
結溝を有するものであつても、導体に不均一な電
磁応力が発生することがなく、よつて導体が破断
に至ることがないと共に、信頼性の高い電磁線輪
を提供するにある。 The present invention has been made in view of the above points, and its purpose is to prevent non-uniform electromagnetic stress from occurring in the conductor even if the conductor has cooling grooves and connecting grooves on its winding surface. To provide a highly reliable electromagnetic wire ring that does not cause breakage of the conductor.
本発明はうず巻き形状に多重巻回された導体の
巻回面に、その巻き方向に沿つて形成された導体
冷却用の冷却溝と導体の側面に設けられた冷却媒
体の供給口、及び排出口とを連通させる連結溝の
形成部分における導体断面積が略一定に保たれる
様、該連結溝を導体の巻き方向に対して所定角度
で傾斜させて前記冷却溝と連通させることにより
所期の目的を達成するようになしたものである。 The present invention provides a cooling groove for cooling the conductor formed along the winding direction on the winding surface of a conductor multi-wound in a spiral shape, and a cooling medium supply port and a discharge port provided on the side surface of the conductor. The connecting groove is inclined at a predetermined angle with respect to the winding direction of the conductor and communicated with the cooling groove so that the cross-sectional area of the conductor at the portion where the connecting groove is formed is kept substantially constant. It was done to achieve the purpose.
以下、本発明の一実施例を図面に基づいて詳細
に説明する。 Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.
第７図に本発明に係る電磁線輪に採用される導
体の一実施例の要部を示す。該図の如く、導体１
２の巻回面には、その巻き方向に沿つて水平に冷
却溝１５が形成されており、その端部は導体１２
の側面１２Ａに形成した冷却媒体の供給口１３に
対して連結溝１６によつて連結されている。又、
冷却溝１５の他端は、同様な連結溝を介して冷却
媒体の排出口（いずれも図示せず）に連通され冷
却水の区分水路を形成する（第７図中、右方に他
の区分水路の冷却媒体の排出口１４側を示してあ
る）。そして、本実施例では、冷却溝１５と冷却
媒体の供給口１３とを連通する上記連結溝１６
を、従来線輪のように巻き方向に対して直角では
なく、これよりも小さなある所定角度θで傾斜し
て形成されている。しかも、この連結溝１６の傾
斜は、連結溝１６の形成部分における導体断面積
が略一定に保たれる様に行なわれている。 FIG. 7 shows a main part of an embodiment of a conductor employed in an electromagnetic wire according to the present invention. As shown in the figure, conductor 1
A cooling groove 15 is formed horizontally along the winding direction on the winding surface of the conductor 12.
It is connected by a connecting groove 16 to a cooling medium supply port 13 formed on a side surface 12A of the cooling medium. or,
The other end of the cooling groove 15 is connected to a cooling medium outlet (none of which is shown) through a similar connecting groove to form a cooling water division channel (in FIG. 7, there is another division on the right side). (The cooling medium outlet 14 side of the water channel is shown). In this embodiment, the connecting groove 16 communicates the cooling groove 15 with the cooling medium supply port 13.
is formed not at right angles to the winding direction like conventional wire wheels, but at a predetermined angle θ smaller than this. Moreover, the inclination of the connecting groove 16 is made such that the cross-sectional area of the conductor at the portion where the connecting groove 16 is formed is kept substantially constant.
従つて、第８図、及び第９図に示すように、導
体１２の径方向断面における連結溝１６の断面SC
は、冷却溝１５の断面SBに比較して大差がなく、
第６図の場合のように、導体断面を連結溝１６の
形成部分において著しく不均一に減少させること
がない。 Therefore, as shown in FIGS. 8 and 9, the cross section S C of the connecting groove 16 in the radial cross section of the conductor 12
is not much different from the cross section S B of the cooling groove 15,
Unlike the case shown in FIG. 6, the cross section of the conductor is not significantly unevenly reduced in the area where the connecting groove 16 is formed.
このように本実施例にあつては、電磁線輪の各
区分水路を形成すべく、導体１２の巻回面に沿つ
て形成した冷却溝１５を、導体１２の側面１２Ａ
に形成されて、かつ、冷却媒体の供給口１３、お
よび排出口１４に連通する各連結溝１６が、連結
溝１６の形成部分における導体断面積が略一定に
保たれるように、巻き方向に対して直角よりも小
さなある所定角度で形成されているので、導体１
２の断面積は冷却溝１５、および連結溝１６のい
ずれの形成部分についても略一定に保たれ、連結
溝形成部分のみの断面積が不均一に減少して電磁
応力が過大に加わるようなことはなく、したがつ
て、この部分にクラツクの発生、破断が集中的に
生じるおそれはない。 In this embodiment, the cooling grooves 15 formed along the winding surface of the conductor 12 are formed on the side surface 12A of the conductor 12 in order to form each section of the electromagnetic wire ring.
The connecting grooves 16 are formed in the winding direction so that the cross-sectional area of the conductor at the portion where the connecting grooves 16 are formed is kept approximately constant. The conductor 1 is formed at a certain angle smaller than a right angle to the conductor 1.
The cross-sectional area of the cooling groove 15 and the connecting groove 16 are kept approximately constant for both the cooling groove 15 and the connecting groove 16, so that the cross-sectional area of only the connecting groove forming portion decreases unevenly and excessive electromagnetic stress is applied. Therefore, there is no risk that cracks or breaks will occur intensively in this area.
尚、本実施例では前記冷却溝１５、および連結
溝１６の導体径方向の断面積SB、およびSCをほぼ
等しくしてあるが、この断面積比を与える前記連
結溝１６の形成傾斜角θは、場合によつて適宜に
変えることができる。また、導体１２に加わる電
磁力は一様ではなく、トーラス中心側の方が大き
くなるので、前記連結溝１６をかかる電磁力のよ
り小さい側に形成するときにはSC／SB比、すなわ
ち角度θを適度に大きく設定しても差支えない。 In this embodiment, the cross-sectional areas S B and S C of the cooling groove 15 and the connecting groove 16 in the radial direction of the conductor are approximately equal, but the forming inclination angle of the connecting groove 16 that gives this cross-sectional area ratio is θ can be changed as appropriate depending on the situation. Furthermore, since the electromagnetic force applied to the conductor 12 is not uniform and is larger toward the center of the torus, when forming the connecting groove 16 on the side where the electromagnetic force is smaller, the S C /S B ratio, that is, the angle θ There is no harm in setting it to a moderately large value.
尚、前述した各実施例にあつては、冷却溝１
５、および連結溝１６よりなる冷却水の水路中
に、通常、冷却水を通水する冷却管（図示せず）
を埋設して軟ろう、もしくは硬ろうによつて導体
に固着している。しかし、冷却媒体としては、水
に限らずガス体を使用することもでき、この場合
には冷却溝１５に直接ガス体を流すようにするこ
ともできる。 In addition, in each of the above-mentioned embodiments, the cooling groove 1
5, and a cooling pipe (not shown) through which cooling water normally flows into the cooling water channel formed by the connecting groove 16.
is buried and fixed to the conductor with soft solder or hard solder. However, the cooling medium is not limited to water, but a gas can also be used, and in this case, the gas can be made to flow directly into the cooling grooves 15.
以上説明した本発明の電磁線輪によれば、うず
巻き形状に多重巻回された導体の巻回面に、その
巻き方向に沿つて形成された導体冷却用の冷却溝
と導体の側面に設けられた冷却媒体の供給口、及
び排出口とを連通させる連結溝の形成部分におけ
る導体断面積が略一定に保たれる様、該連結溝を
導体の巻き方向に対して所定角度で傾斜させて前
記冷却溝と連通させたものであるから、導体の連
結溝部分の断面積がほぼ均一となるため、導体に
不均一な電磁応力が発生することがないので、導
体が破断に至ることもなく、信頼性のある此種電
磁線輪を得ることができる。 According to the electromagnetic wire ring of the present invention described above, cooling grooves for cooling the conductor are formed along the winding direction on the winding surface of the conductor multi-wound in a spiral shape, and the cooling groove is provided on the side surface of the conductor. The connecting groove is inclined at a predetermined angle with respect to the winding direction of the conductor so that the cross-sectional area of the conductor at the portion where the connecting groove is formed to communicate with the supply port and the discharge port of the cooling medium is kept approximately constant. Since the conductor is connected to the cooling groove, the cross-sectional area of the connecting groove portion of the conductor is almost uniform, so uneven electromagnetic stress is not generated on the conductor, and the conductor does not break. This kind of reliable electromagnetic wire ring can be obtained.
第１図は従来の電磁線輪を一部破断して示す斜
視図、第２図は第１図の横断面図、第３図は別の
従来の電磁線輪に採用される導体の斜視図、第４
図は更に別の従来の電磁線輪の横断面図、第５図
は第４図の線輪に採用される導体の斜視図、第６
図は第５図の−線に沿う断面図、第７図は本
発明の一実施例に採用される導体の斜視図、第８
図は第７図の−線に沿う断面図、第９図は第
７図の−線に沿う断面図である。
１２……導体、１２Ａ……導体側面、１３……
冷媒供給口、１４……冷媒排出口、１５……冷却
溝、１６……連結溝。
Fig. 1 is a partially cutaway perspective view of a conventional electromagnetic wire, Fig. 2 is a cross-sectional view of Fig. 1, and Fig. 3 is a perspective view of a conductor employed in another conventional electromagnetic wire. , 4th
The figure is a cross-sectional view of yet another conventional electromagnetic wire, FIG. 5 is a perspective view of a conductor employed in the wire of FIG. 4, and FIG.
The figures are a sectional view taken along the - line in Fig. 5, Fig. 7 is a perspective view of a conductor adopted in an embodiment of the present invention, and Fig. 8
The figure is a sectional view taken along the - line in FIG. 7, and FIG. 9 is a sectional view taken along the - line in FIG. 7. 12...Conductor, 12A...Conductor side, 13...
Refrigerant supply port, 14... Refrigerant discharge port, 15... Cooling groove, 16... Connection groove.
Claims (1)
に、その巻き方向に沿つて導体冷却用の冷却溝を
水平に形成すると共に、この冷却溝と前記導体の
側面に設けられた冷却媒体の供給口、および排出
口とを連通させる連結溝を前記導体の巻回面に形
成してなる電磁線輪において、前記連結溝の形成
部分における導体断面積が略一定に保たれる様、
該連結溝を導体の巻き方向に対して所定角度で傾
斜させて前記冷却溝と連通させたことを特徴とす
る電磁線輪。1. A cooling groove for cooling the conductor is formed horizontally along the winding direction on the winding surface of a conductor that is multi-wound in a spiral shape, and a cooling groove is formed horizontally in the winding surface of the conductor, which is multi-wound in a spiral shape, and a cooling groove is formed on the side surface of the conductor. In the electromagnetic wire in which a connecting groove is formed in the winding surface of the conductor to communicate with the supply port and the discharge port, the cross-sectional area of the conductor at the portion where the connecting groove is formed is kept substantially constant;
An electromagnetic wire ring characterized in that the connecting groove is inclined at a predetermined angle with respect to the winding direction of the conductor to communicate with the cooling groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP579180A JPS56103900A (en) | 1980-01-23 | 1980-01-23 | Electromagnetic coil for nuclear fusion reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP579180A JPS56103900A (en) | 1980-01-23 | 1980-01-23 | Electromagnetic coil for nuclear fusion reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56103900A JPS56103900A (en) | 1981-08-19 |
| JPS6337352B2 true JPS6337352B2 (en) | 1988-07-25 |
Family
ID=11620903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP579180A Granted JPS56103900A (en) | 1980-01-23 | 1980-01-23 | Electromagnetic coil for nuclear fusion reactor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56103900A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5937487A (en) * | 1982-08-26 | 1984-02-29 | 株式会社東芝 | Magnetic field coil for nuclear fusion device |
| JPS60163409A (en) * | 1984-02-06 | 1985-08-26 | Hitachi Ltd | Direct cooling type electromagnetic coil |
-
1980
- 1980-01-23 JP JP579180A patent/JPS56103900A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56103900A (en) | 1981-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4709177A (en) | Ventilated end turns for rotor windings of a dynamoelectric machine | |
| US4363013A (en) | Winding structure for static electrical induction apparatus | |
| US9073145B2 (en) | Electric induction impeder | |
| JPS6337352B2 (en) | ||
| JP3678465B2 (en) | Superconducting power cable | |
| EP0785560B1 (en) | Transformer winding structure | |
| JP3210199B2 (en) | Cooling body for flat semiconductor devices | |
| US3789494A (en) | Method of spirally winding strip to produce pinned units | |
| EP0401743A1 (en) | Electrically insulated heat pipe type cooling apparatus for semiconductor | |
| CN222380339U (en) | Doubling device for cable processing | |
| JP3482564B2 (en) | Normal conduction high magnetic field coil device | |
| JPH0466085B2 (en) | ||
| JPS609107A (en) | electromagnetic wire ring | |
| SU1073845A1 (en) | Stator core of electric machine | |
| JPS58202508A (en) | Electromagnet coil | |
| JP2003021476A (en) | Heat exchanger manufacturing method | |
| JP4631224B2 (en) | Heat exchanger | |
| JPS609649B2 (en) | electric winding | |
| JPH0520937A (en) | Superconducting conductor | |
| JPH0326520B2 (en) | ||
| JPH11355990A (en) | Supply / drainage box and rotating electric machine | |
| JPS6122457Y2 (en) | ||
| JPH0271191A (en) | Structure of diverter plate | |
| JPH11332150A (en) | Armature coil of rotating electric machine | |
| JPS6199887A (en) | Electromagnetic ray ring of nuclear fusion device |