JP2586068B2 - Rotor of superconducting rotating electric machine and method of manufacturing the same - Google Patents
Rotor of superconducting rotating electric machine and method of manufacturing the sameInfo
- Publication number
- JP2586068B2 JP2586068B2 JP62291359A JP29135987A JP2586068B2 JP 2586068 B2 JP2586068 B2 JP 2586068B2 JP 62291359 A JP62291359 A JP 62291359A JP 29135987 A JP29135987 A JP 29135987A JP 2586068 B2 JP2586068 B2 JP 2586068B2
- Authority
- JP
- Japan
- Prior art keywords
- superconducting
- slot
- field coil
- mounting shaft
- 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.)
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Landscapes
- Superconductive Dynamoelectric Machines (AREA)
Description
【発明の詳細な説明】 〔発明の技術分野〕 この発明は超電導回転電機の回転子，特に超電導界磁
コイルをコイル取付軸に保持する構造に関するものであ
る。Description: TECHNICAL FIELD [0001] The present invention relates to a rotor of a superconducting rotating electric machine, and more particularly to a structure for holding a superconducting field coil on a coil mounting shaft.
従来この種の一般的な回転子として例えば特開昭61−
18346号公報に開示された第４図に示すものがあった。
第４図において，（１）はトルクチューブ，（２）はト
ルクチューブ（１）の中央部を形成するコイル取付軸，
（３）はコイル取付軸（２）に固定されている超電導界
磁コイル，（４）はトルクチューブ（１）とコイル取付
軸（２）を囲繞する常温ダンパ，（５）はこの常温ダン
パとコイル取付軸（２）の間に配設されている低温ダン
パ（４），（６）及び（７）はコイル取付軸（２）のそ
れぞれ外周部及び側面部に取り付けられたヘリウム外筒
及びヘリウム端板，（８）及び（９）はそれぞれ駆動
側，反駆動側端部軸，（10）はこれらの端部軸（８），
（９）を軸支する軸受，（11）は界磁電流供給用のスリ
ップリング，（12）はトルクチューブ（１）に形成或い
は配置されている熱交換器，（13）は側部輻射シール
ド，（14）は真空部である。Conventionally, as a general rotor of this kind, for example,
There was one shown in FIG. 4 disclosed in Japanese Patent Publication No. 18346.
In FIG. 4, (1) is a torque tube, (2) is a coil mounting shaft forming a central portion of the torque tube (1),
(3) is a superconducting field coil fixed to the coil mounting shaft (2), (4) is a normal temperature damper surrounding the torque tube (1) and the coil mounting shaft (2), and (5) is a normal temperature damper. The low-temperature dampers (4), (6) and (7) disposed between the coil mounting shafts (2) are a helium outer cylinder and a helium mounted on the outer peripheral portion and side surface portions of the coil mounting shaft (2), respectively. End plates, (8) and (9) are drive-side and non-drive-side end shafts, respectively, and (10) is these end shafts (8),
(9) a bearing that supports the shaft, (11) a slip ring for supplying a field current, (12) a heat exchanger formed or arranged in the torque tube (1), and (13) a side radiation shield , (14) is a vacuum section.
上記構成からなる超電導回転電機の回転子において
は，コイル取付軸（２）に配置されている超電導界磁コ
イル（３）を極低温に冷却することにより，電気抵抗を
零の状態とし，励磁損失をなくすことにより，この超電
導界磁コイル（３）に強力な界磁を発生させ，固定子
（図示せず）に交流電力を発生させる。この超電導界磁
コイル（３）を極低温に冷却，保持するために液体ヘリ
ウムを反駆動側端部軸（９）の中央部から導入管（図示
せず）を通じ，ヘリウム外筒（６），ヘリウム端板
（７）により形成される液体ヘリウム容器部に供給する
一方，回転子内部を真空部（14）により高真空に保つと
共に，極低温の超電導界磁コイル（３）及びコイル取付
軸（２）に回転トルクを伝えるトルクチューブ（１）を
薄肉円筒とし，且つ熱交換器（12）を設け，このトルク
チューブ（１）を通じ極低温部に侵入する熱を極力減ら
す構造が最も一般的である。さらに，側面からの輻射に
より侵入する熱を低減するため，側部輻射シールド（1
3）が設けられている。In the rotor of the superconducting rotary electric machine having the above configuration, the superconducting field coil (3) disposed on the coil mounting shaft (2) is cooled to a very low temperature, so that the electric resistance becomes zero and the excitation loss is reduced. , A strong field is generated in the superconducting field coil (3), and AC power is generated in a stator (not shown). In order to cool and maintain the superconducting field coil (3) at a very low temperature, liquid helium is introduced from the center of the non-drive end shaft (9) through an introduction pipe (not shown), and a helium outer cylinder (6), While supplying the liquid to the liquid helium container formed by the helium end plate (7), the inside of the rotor is maintained at a high vacuum by the vacuum part (14), and the cryogenic superconducting field coil (3) and the coil mounting shaft ( The most common structure is to make the torque tube (1) that transmits the rotational torque to 2) a thin-walled cylinder and provide a heat exchanger (12) to minimize the heat that enters the cryogenic part through this torque tube (1). is there. Furthermore, in order to reduce the heat that enters due to radiation from the side, a side radiation shield (1
3) is provided.
一方，常温ダンパ（４）及び低温ダンパ（５）は，固
定子からの高調波磁界をシールドし，超電導界磁コイル
（３）を保護すると共に，電力系統のじよう乱による回
転子振動を減衰させる機能を有する一方，常温ダンパ
（４）は真空外筒としての機能，低温ダンパ（５）はヘ
リウム容器部への輻射シールドとしての機能を兼ねる方
式が一般的である。尚，第１図においては，回転子内部
のヘリウム導入，排出系を構成する配管類及び回転子に
接続されているヘリウム導入，排出装置は省略してい
る。On the other hand, the room temperature damper (4) and the low temperature damper (5) shield the harmonic magnetic field from the stator, protect the superconducting field coil (3), and attenuate the rotor vibration caused by disturbance in the power system. In general, the normal temperature damper (4) also functions as a vacuum outer cylinder, and the low temperature damper (5) also functions as a radiation shield to the helium container. In FIG. 1, the helium introduction / discharge system connected to the helium introduction / exhaust system and the rotor inside the rotor is omitted.
第５図は第４図のＶ−Ｖ線における断面図断面図を示
し，第５図において，（２）はコイル取付軸，（３）は
超電導界磁コイル，（15）は楔，（18）はコイル取付軸
（２）の表面に軸方向に形成されたスロット，（19）は
スロット内絶縁スペーサ，（20）は上部絶縁スペーサで
ある。この構成において，超電導界磁コイル（３）は,A
−Ａ線を取り巻くようにして巻回しており，従って,A−
Ａ線を極中心として強力な界磁を発生する。楔（15）は
超電導界磁コイル（３）をスロット（18）内に堅固に保
持するように打ち込まれている。5 is a sectional view taken along the line VV in FIG. 4. In FIG. 5, (2) is a coil mounting shaft, (3) is a superconducting field coil, (15) is a wedge, (18) ) Are slots formed in the surface of the coil mounting shaft (2) in the axial direction, (19) is an insulating spacer in the slot, and (20) is an upper insulating spacer. In this configuration, the superconducting field coil (3)
-The wire is wound around the A line.
A strong field is generated with the line A as the pole center. The wedge (15) is driven into the slot (18) to securely hold the superconducting field coil (3).
第６図はコイル取付軸端部を示す斜視図，第７図は第
６図のVII−VII線における断面図であり，第６図，第７
図において，（２）はコイル取付軸，（３）は超電導界
磁コイル，（18）はコイル取付軸（２）に形成され，超
電導界磁コイル（３）を収納するスロット，（15）はス
ロット（18）に挿着され，超電導界磁コイル（３）を堅
固に保持する楔である。（19）はスロット内絶縁スペー
サ，（20）は上部絶縁スペーサ，（21）は下部絶縁スペ
ーサ，（22）はコイル取付軸（２）のスロット（18）と
コイル取付軸（２）の軸中心内部の液体ヘリウムの液溜
め部（図示せず）とに連通して設けられたヘリウム流通
孔である。FIG. 6 is a perspective view showing the end of the coil mounting shaft, and FIG. 7 is a sectional view taken along the line VII-VII of FIG.
In the figure, (2) is a coil mounting shaft, (3) is a superconducting field coil, (18) is a slot formed on the coil mounting shaft (2) and accommodates the superconducting field coil (3), and (15) is A wedge that is inserted into the slot (18) and firmly holds the superconducting field coil (3). (19) is the insulating spacer in the slot, (20) is the upper insulating spacer, (21) is the lower insulating spacer, and (22) is the center of the slot (18) of the coil mounting shaft (2) and the coil mounting shaft (2). It is a helium circulation hole provided in communication with a liquid reservoir (not shown) for liquid helium inside.
スロット（18）はコイル取付軸（２）の軸表面に軸方
向に沿った直線スロット，軸両端部で円周方向に沿った
アークスロット，その直線スロットとアークスロットと
に連設するコーナスロットにより構成されている。した
がって，楔（15）はそれらスロットに応じた形状とし，
スロット（18）内に超電導界磁コイル（３）を収納した
後，スロット（18）に楔（15）を挿着して超電導界磁コ
イル（３）を堅固に保持している。The slot (18) is formed by a straight slot along the axial direction on the shaft surface of the coil mounting shaft (2), an arc slot along the circumferential direction at both ends of the shaft, and a corner slot connected to the straight slot and the arc slot. It is configured. Therefore, the wedge (15) is shaped according to those slots,
After storing the superconducting field coil (3) in the slot (18), a wedge (15) is inserted into the slot (18) to hold the superconducting field coil (3) firmly.
このような回転子に使用される超電導界磁コイルとし
ては例えば特開昭57−186960号公報に開示されたものが
あり、その構成を第８図に示す。図において、（３）は
超電導界磁コイル、（3a）は複数の超電導素線を撚り線
などにより形成された超電導線であり、複数列、複数層
巻回されている。（23）はこれら超電導線（3a）の列間
に挿入された列間絶縁、（24）は超電導線（3a）の層間
に挿入された層間絶縁である。尚、超電導界磁コイル
（３）は、超電導線（3a）を１本持ちで、かつ超電導線
（3a）列間には列間絶縁（23）を、超電導線（3a）の層
間には層間絶縁（24）をそれぞれ挿入しながら巻回し、
巻回後はエポキシ樹脂で処理してモールド状に形成さ
れ、超電導線（3a）の短絡防止がなされている。A superconducting field coil used in such a rotor is disclosed, for example, in Japanese Patent Application Laid-Open No. 57-186960, and the structure is shown in FIG. In the figure, (3) is a superconducting field coil, and (3a) is a superconducting wire formed by twisting a plurality of superconducting element wires, and is wound in a plurality of rows and a plurality of layers. (23) is an inter-row insulation inserted between the rows of the superconducting wires (3a), and (24) is an interlayer insulation inserted between the superconducting wires (3a). The superconducting field coil (3) has one superconducting wire (3a), has inter-column insulation (23) between the superconducting wires (3a), and an interlayer between the superconducting wires (3a). Winding while inserting the insulation (24) respectively,
After the winding, it is treated with an epoxy resin to be formed into a mold to prevent short circuit of the superconducting wire (3a).
しかしながら上述した従来装置では，超電導界磁コイ
ル（３）を堅固に保持する楔（15）はスロット（18）の
各形状に応じた形状とする必要があり，特にコイル取付
軸（２）の軸両端部に配置された楔（15）の形状は複雑
な形状となりその製作加工並びに打ち込み作業に多大の
労力を要していた。また、超電導界磁コイル（３）の冷
却がその外周面からしか冷却されない行動となってお
り、超電導界磁コイル（３）内部の超電導線（3a）で発
熱した場合、超電導線（3a）の熱は列間絶縁（23）、層
間絶縁（24）、また他の超電導線（3a）を介した熱伝導
を経て超電導界磁コイル（３）外周のヘリウムで冷却さ
れて除去されることになり、冷却効果が悪く、超電導線
（3a）の温度が上昇し、超電導破壊（クエンチ）を生ず
る問題点があった。However, in the above-described conventional device, the wedge (15) for firmly holding the superconducting field coil (3) needs to have a shape corresponding to each shape of the slot (18), and particularly, the axis of the coil mounting shaft (2). The shape of the wedges (15) arranged at both ends was complicated, requiring a great deal of labor for manufacturing and driving the wedges (15). Further, the superconducting field coil (3) is cooled only from its outer peripheral surface. When the superconducting wire (3a) inside the superconducting field coil (3) generates heat, the superconducting wire (3a) is cooled. Heat is removed by cooling with helium around the superconducting field coil (3) through inter-column insulation (23), interlayer insulation (24), and heat conduction via other superconducting wires (3a). In addition, there is a problem that the cooling effect is poor, the temperature of the superconducting wire (3a) rises, and superconducting breakdown (quench) occurs.
この発明は上記のような問題点を解消するためになさ
れたものであり，多大の労力を要することなく超電導界
磁コイルを堅固に保持できると共に冷却効果を高め超電
導破壊を生ずることのない超電導回転電機の回転子を提
供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a superconducting rotating coil capable of firmly holding a superconducting field coil without much labor, enhancing a cooling effect, and causing no superconducting breakdown. An object of the present invention is to provide an electric motor rotor.
この発明に係る超電導回転電機の回転子は，超電導界
磁コイルの超電導線に樹脂が含浸された半硬化状からな
り巻回後硬化される絶縁テープをスパイラル状に巻回し
その絶縁テープ間の空隙に冷却路を形成し，超電導界磁
コイルの外周側に上部絶縁材を配設し，超電導界磁コイ
ルとコイル取付軸のスロット壁面との間にスロット内絶
縁材を装着して冷媒の冷却路を形成し，コイル取付軸の
外周側に円筒体を嵌着して上部絶縁材を介して超電導界
磁コイルをスロット内に堅固に保持するようにしたもの
である。The rotor of the superconducting rotary electric machine according to the present invention is formed by spirally winding an insulating tape formed of a semi-cured resin impregnated with a resin into a superconducting wire of a superconducting field coil and being cured after winding, and forming a gap between the insulating tapes. A cooling path is formed on the outer surface of the superconducting field coil, and an insulating material in the slot is mounted between the superconducting field coil and the slot wall surface of the coil mounting shaft. And a cylindrical body is fitted around the outer periphery of the coil mounting shaft so that the superconducting field coil is firmly held in the slot via the upper insulating material.
この発明における超電導回転電機の回転子は，超電導
界磁コイルをスロット内に装着した後，コイル取付軸の
外周側に円筒体を嵌着させて超電導界磁コイルをスロッ
ト内に堅固に保持する。又，各冷却路を冷媒が流通して
超電導界磁コイルを冷却する。In the rotor of the superconducting rotary electric machine according to the present invention, after the superconducting field coil is mounted in the slot, a cylindrical body is fitted on the outer peripheral side of the coil mounting shaft to firmly hold the superconducting field coil in the slot. In addition, a coolant flows through each cooling path to cool the superconducting field coil.
以下，この発明の一実施例を図に基づいて説明する。
第１図〜第３図において，（２）はコイル取付軸，（2
a）はコイル取付軸（２）の外周部に形成された冷媒で
ある液体ヘリウムの冷却路，（18）はスロット，（22）
はヘリウム流通孔，（25）はスロット（18）内に装着さ
れた超電導界磁コイルであり，超電導線（25a）が複数
列，複数層巻回されて形成されている。（26）は超電導
界磁コイル（25）の超電導線（25a）にスパイラル状に
巻回され樹脂が含浸された半硬化状からなり巻回後硬化
される絶縁テープ，（27）はこの絶縁テープ（26）間の
空隙に形成された冷却路，（28）は超電導界磁コイル
（25）とスロット（18）底面との間に装着された下部絶
縁材であり，ヘリウム流通孔（22）と連設する軸方向に
延在する冷却路（28a）と，この冷却路（28a）と連設す
る半径方向の冷却路（28b）と，この冷却路（28b）と連
設する周方向の冷却路（28c）が形成されており，冷却
路（27）とヘリウム流通孔（22）とはこれら冷却路（28
a），（28b），（28c）を介して連設されている。（2
9）は超電導界磁コイル（25）の外周側に配設され，超
電導界磁コイル（25）に樹脂含浸して硬化させることに
より固持される上部絶縁材であり，コイル取付軸（２）
の冷却路（2a）と連設する周方向の冷却路（29a）と，
この冷却路（29a）と連設する軸方向の冷却路（29b）
と，この冷却路（29b）と連設する周方向の冷却路（29
c）が形成されており，冷却路（2a）と冷却路（27）と
はこれら冷却路（29a），（29b），（29c）を介して連
設されている。（30）は超電導界磁コイル（25）とスロ
ット（18）壁面との間に装着されたスロット内絶縁材で
あり，冷却路（30a）が形成されている。（31）はコイ
ル取付軸（２）の外周側に例えば焼嵌め等により嵌着さ
れ，スロット（18）内に装着された超電導界磁コイル
（25）を上部絶縁材（29）を介してスロット（18）内に
堅固に保持する円筒体である。Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
In FIGS. 1 to 3, (2) is a coil mounting shaft, (2)
a) is a cooling path for liquid helium, which is a refrigerant formed on the outer periphery of the coil mounting shaft (2), (18) is a slot, (22)
Is a helium flow hole, and (25) is a superconducting field coil installed in the slot (18), and is formed by winding a plurality of superconducting wires (25a) in a plurality of layers. (26) is an insulating tape that is spirally wound around the superconducting wire (25a) of the superconducting field coil (25) and impregnated with resin and is cured after winding, and (27) is this insulating tape The cooling path formed in the gap between (26) and (28) is the lower insulating material installed between the superconducting field coil (25) and the bottom of the slot (18). An axially extending cooling passage (28a), a radial cooling passage (28b) connected to the cooling passage (28a), and a circumferential cooling passage connected to the cooling passage (28b). A passage (28c) is formed, and the cooling passage (27) and the helium circulation hole (22) are connected to the cooling passage (28c).
a), (28b) and (28c). (2
Reference numeral 9) denotes an upper insulating material which is disposed on the outer peripheral side of the superconducting field coil (25) and is fixed by impregnating the superconducting field coil (25) with a resin and curing the coil;
A circumferential cooling path (29a) connected to the cooling path (2a)
An axial cooling path (29b) connected to this cooling path (29a)
And a circumferential cooling path (29b) connected to this cooling path (29b).
c) is formed, and the cooling path (2a) and the cooling path (27) are connected to each other via these cooling paths (29a), (29b), and (29c). (30) is an insulating material in the slot mounted between the superconducting field coil (25) and the wall surface of the slot (18), and has a cooling path (30a). The superconducting field coil (25) mounted in the slot (18) is inserted into the slot (18) through the upper insulating material (29). (18) A cylindrical body that is firmly held inside.
次に動作について説明する。コイル取付軸（２）のス
ロット（18）の底面に下部絶縁材（28），スロット（1
8）の両壁面にスロット内絶縁材（30）を装着する。次
いで，超電導線（25a）に樹脂が含浸された半硬化状の
絶縁テープ（26）をスパイラル状に巻回して超電導界磁
コイル（25）を形成してスロット（18）内に装着する。
そして，超電導界磁コイル（25）の外周側に上部絶縁材
（29）を配設する。絶縁テープ（26）に含浸した樹脂を
適宜の粘度に調整することにより隣接する相互間は密着
状態に保持される。絶縁テープ（26）の樹脂の硬化は回
転加熱により行われ，超電導界磁コイル（25）の固定が
堅固となり上部絶縁材（29）の固定もできる。硬化後，
コイル取付軸（２）の外周面を旋盤により加工した後，
コイル取付軸（２）の外周側に円筒体（31）を焼嵌めに
より嵌着して超電導界磁コイル（25）を上部絶縁材（2
9）を介してスロット（18）内に堅固に保持する。Next, the operation will be described. At the bottom of the slot (18) of the coil mounting shaft (2), the lower insulating material (28) and the slot (1
8) Attach the in-slot insulation (30) to both wall surfaces. Next, a semi-cured insulating tape (26) impregnated with resin is spirally wound around the superconducting wire (25a) to form a superconducting field coil (25), which is mounted in the slot (18).
Then, an upper insulating material (29) is provided on the outer peripheral side of the superconducting field coil (25). By adjusting the viscosity of the resin impregnated in the insulating tape (26) to an appropriate level, the adjacent tapes are kept in close contact with each other. The hardening of the resin of the insulating tape (26) is performed by rotational heating, so that the superconducting field coil (25) is firmly fixed and the upper insulating material (29) can be fixed. After curing,
After machining the outer peripheral surface of the coil mounting shaft (2) with a lathe,
A cylindrical body (31) is fitted to the outer peripheral side of the coil mounting shaft (2) by shrink fitting, and the superconducting field coil (25) is placed on the upper insulating material (2).
Hold firmly in slot (18) via 9).
以上のように円筒体（31）をコイル取付軸（２）の外
周側に焼嵌めにより嵌着することによって超電導界磁コ
イル（25）をスロット（18）内に堅固に保持できるの
で）従来のような形状の複雑な楔（15）を全く使用しな
くてよくその製作加工並びに打ち込み作業が皆無とな
る。又，楔（15）をスロット（18）内に挿着するための
楔溝も不要となる。さらに，楔（15）を省略したこによ
り，その厚さ寸法分外径を小さくすることができ，しか
も超電導界磁コイル（25）の樹脂硬化後にコイル取付軸
（２）の外表面を加工するようにしたので，コイル高さ
の調整作業が不要となる。As described above, the superconducting field coil (25) can be firmly held in the slot (18) by shrink-fitting the cylindrical body (31) on the outer peripheral side of the coil mounting shaft (2). There is no need to use a complicated wedge (15) having such a shape at all, and there is no need for fabrication and driving work. Further, a wedge groove for inserting the wedge (15) into the slot (18) becomes unnecessary. Furthermore, omitting the wedge (15) makes it possible to reduce the outer diameter by the thickness of the wedge (15), and to machine the outer surface of the coil mounting shaft (2) after the resin of the superconducting field coil (25) is cured. This eliminates the need to adjust the coil height.
又，超電導界磁コイル（25）の超電導線（25a）の冷
却は次のようにして行われる。コイル取付軸（２）の外
周部に形成した冷却路（2a）を通じて液体ヘリウムが供
給されスロット内絶縁材（29）によって形成された半径
方向の冷却路（30a）と上部絶縁材（29）の冷却路（29
a）に流入する。冷却路（29a）に流入した液体ヘリウム
は（29b）に流入して冷却路（29c）を経て超電導線（25
a）にスパイラル絶縁（26）をスパイラル状に形成する
ことにより形成した冷却路（27）に流入する。これら冷
却路（27），（30a）を液体ヘリウムが流通することに
より超電導線（25a）が直接冷却される。超電導線（25
a）を冷却した後の液体ヘリウムは冷却路（28c），（28
b），（28a）を経てヘリウム流通孔（22）に流出する。Cooling of the superconducting wire (25a) of the superconducting field coil (25) is performed as follows. Liquid helium is supplied through a cooling path (2a) formed on the outer periphery of the coil mounting shaft (2), and a radial cooling path (30a) formed by the in-slot insulating material (29) and an upper insulating material (29). Cooling path (29
a). The liquid helium flowing into the cooling passage (29a) flows into the cooling passage (29b), passes through the cooling passage (29c), and the superconducting wire (25
The cooling flow (27) formed by forming the spiral insulation (26) in a spiral shape in (a) flows into the cooling passage (27). The superconducting wire (25a) is directly cooled by flowing the liquid helium through these cooling paths (27) and (30a). Superconducting wire (25
The liquid helium after cooling a) is cooled by cooling channels (28c) and (28c).
It flows out to the helium flow hole (22) through b) and (28a).
尚，上記実施例では上部絶縁材（29），下部絶縁材
（28）に形成した冷却路は種々の形状のものとしたが，
上部絶縁材（29）においては冷却路（2a）と冷却路（2
7）を連設する冷却路であればよく，下部絶縁材（28）
においては冷却路（27）とヘリウム流通孔（22）を連設
する冷却路であればよい。In the above embodiment, the cooling passages formed in the upper insulating material (29) and the lower insulating material (28) have various shapes.
The cooling path (2a) and cooling path (2
It is sufficient if it is a cooling path connecting 7) continuously, and the lower insulating material (28)
In this case, any cooling path may be used as long as the cooling path (27) and the helium circulation hole (22) are connected.
この発明は以上説明した通り，超電導界磁コイルの超
電導線に樹脂が含浸された半硬化状からなり巻回後硬化
される絶縁テープをスパイラル状に巻回しその絶縁テー
プ間の空隙に冷却路を形成し，その冷却路を冷媒が流通
することにより超電導線を冷却することができ，冷却効
果が向上し，超電導破壊を生ずることがなく信頼性が向
上する。又，コイル取付軸のスロット内に装着された超
電導界磁コイルをコイル取付軸の外周側に嵌着した円筒
体により堅固に保持するようにしたので，複雑な形状の
楔を全く使用しなくてもよくその製作加工並びに打ち込
み作業が皆無となり，作業性が著しく向上すると共に経
済的にも優れた効果が得られる。又，スロット内に装着
された超電導界磁コイルに巻回した半硬化状の絶縁テー
プを硬化させて上部絶縁材を固定するようにしたので、
各冷却路を確保した状態で超電導界磁コイル及び各絶縁
材をスロット内に半硬化状の絶縁テープの硬化のみの簡
単な構成で容易に固定できる。As described above, according to the present invention, a superconducting wire of a superconducting field coil is wound in a semi-cured state in which a resin is impregnated into a semi-cured shape and is cured after winding, and a cooling path is formed in a gap between the insulating tapes. Thus, the superconducting wire can be cooled by flowing the refrigerant through the cooling passage, thereby improving the cooling effect and improving the reliability without causing the superconducting breakdown. Also, since the superconducting field coil mounted in the slot of the coil mounting shaft is firmly held by the cylindrical body fitted on the outer peripheral side of the coil mounting shaft, a wedge of a complicated shape is not used at all. In addition, there is no need to carry out the manufacturing process and the driving work, so that the workability is remarkably improved and an economically excellent effect is obtained. Also, the semi-cured insulating tape wound around the superconducting field coil mounted in the slot is cured to fix the upper insulating material.
With the respective cooling paths secured, the superconducting field coil and the respective insulating materials can be easily fixed in the slots with a simple configuration in which only a semi-cured insulating tape is cured.
第１図はこの発明の一実施例による超電導回転電機の回
転子における超電導界磁コイルを示す断面図、第２図は
第１図の要部拡大図、第３図は第１図のIII−III線にお
ける断面図、第４図は従来の一般的な超電導回転電機の
回転子を示す縦断面図、第５図は第４図のＶ−Ｖ線にお
ける断面図、第６図は従来のコイル取付軸端部を示す斜
視図、第７図は第６図のVII−VII線における断面図、第
８図は従来の超電導界磁コイルを示す断面図である。 図において、（２）はコイル取付軸、（2a）は冷却路、
（18）はスロット、（25）は超電導界磁コイル、（25
a）は超電導線、（26）は絶縁テープ、（27）は冷却
路、（28）は下部絶縁材、（29）は上部絶縁材、（30）
はスロット内絶縁材、（31）は円筒体である。 尚、図中同一符号は同一、又は相当部分を示す。FIG. 1 is a sectional view showing a superconducting field coil in a rotor of a superconducting rotary electric machine according to an embodiment of the present invention, FIG. 2 is an enlarged view of a main part of FIG. 1, and FIG. FIG. 4 is a longitudinal sectional view showing a rotor of a conventional general superconducting rotary electric machine, FIG. 5 is a sectional view taken along a line VV in FIG. 4, and FIG. 6 is a conventional coil. FIG. 7 is a perspective view showing the end of the mounting shaft, FIG. 7 is a sectional view taken along the line VII-VII of FIG. 6, and FIG. 8 is a sectional view showing a conventional superconducting field coil. In the figure, (2) is a coil mounting shaft, (2a) is a cooling path,
(18) slot, (25) superconducting field coil, (25
a) is a superconducting wire, (26) is an insulating tape, (27) is a cooling path, (28) is a lower insulating material, (29) is an upper insulating material, (30)
Is an insulating material in the slot, and (31) is a cylindrical body. In the drawings, the same reference numerals indicate the same or corresponding parts.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭62−213546（ＪＰ，Ａ) 特開 昭62−23364（ＪＰ，Ａ) 特開 昭59−80152（ＪＰ，Ａ) 特開 昭57−162931（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-213546 (JP, A) JP-A-62-23364 (JP, A) JP-A-59-80152 (JP, A) JP-A 57-213 162931 (JP, A)
Claims (2)
取付軸と、このコイル取付軸に形成されたスロットと、
このスロット内に装着され、超電導線が複数列、複数層
巻回されて形成された超電導界磁コイルとを有する超電
導回転電機の回転子において、上記超電導界磁コイルの
超電導線にスパイラル状に巻回され樹脂が含浸された半
硬化状からなり巻回後硬化される絶縁テープと、このス
パイラル絶縁間の空隙に形成された冷却路と、上記超電
導界磁コイルと上記スロット底面との間に装着され上記
コイル取付軸の冷却路および上記スパイラル絶縁間の冷
却路に連設した冷却路が形成された下部絶縁材と、上記
超電導界磁コイルと上記スロット壁面との間に装着され
冷媒の冷却路が形成されたスロット内絶縁材と、上記超
電導界磁コイルの外周側に配設され、上記超電導界磁コ
イルに巻回された上記絶縁テープを硬化させることによ
り固持され、上記コイル取付軸の冷却路及び上記スパイ
ラル絶縁間の冷却路に連設する冷却路が形成された上部
絶縁材と、上記コイル取付軸の外周側に嵌着され、上記
スロット内に装着された上記超電導界磁コイルを上記上
部絶縁材を介して上記スロット内に堅固に保持する円筒
体とを備えたことを特徴とする超電導回転電機の回転
子。A coil mounting shaft having a coolant cooling passage formed in an outer peripheral portion thereof; a slot formed in the coil mounting shaft;
A superconducting electric rotating machine having a superconducting field coil formed by winding a plurality of rows and layers of superconducting wires mounted in the slots, the superconducting wire of the superconducting field coil being spirally wound. An insulating tape which is made of semi-cured and impregnated with resin and cured after winding, a cooling path formed in a gap between the spiral insulations, and a space between the superconducting field coil and the bottom of the slot. And a lower insulating material having a cooling path connected to the cooling path of the coil mounting shaft and the cooling path between the spiral insulation, and a cooling path of a refrigerant mounted between the superconducting field coil and the slot wall surface. The insulating material in the slot in which is formed, is disposed on the outer peripheral side of the superconducting field coil, and is fixed by curing the insulating tape wound around the superconducting field coil, An upper insulating material in which a cooling passage connected to the cooling passage of the oil mounting shaft and the cooling passage between the spiral insulation is formed; and the superconducting member fitted to the outer peripheral side of the coil mounting shaft and mounted in the slot. A cylindrical body for firmly holding the field coil in the slot via the upper insulating material.
軸に形成されたスロットの底面に下部絶縁材をスロット
の両壁面にスロット内絶縁材を施し、樹脂が含浸され半
硬化状からなる絶縁テープを表面にスパイラル状に巻回
した超電導線を複数列、複数層巻回して上記スパイラル
状の絶縁間の空隙で冷却路を形成させた超電導界磁コイ
ルを上記スロットに装着する、次に上記取付軸の冷却路
及び上記超電導界磁コイルの冷却路に連設する冷却路が
形成された上部絶縁材を上記超電導界磁コイルの外周側
に配設し回転加熱により上記樹脂を硬化させ上記上部絶
縁材を接着固定する、次に上記コイル取付軸の外周面を
加工し上記コイル取付軸の外周側に円筒体を嵌着させて
上記超電導界磁コイルを上記スロット内に上記上部絶縁
材を介して保持するようにしたことを特徴とする超電導
回転電機の回転子の製造方法。2. A lower insulating material is provided on a bottom surface of a slot formed on a coil mounting shaft having a cooling passage for a refrigerant on an outer peripheral portion, and an insulating material in the slot is provided on both wall surfaces of the slot. A plurality of superconducting wires spirally wound on the surface of an insulating tape, a plurality of layers, and a superconducting field coil having a cooling path formed by a gap between the spiral-shaped insulations is mounted in the slot, and An upper insulating material in which a cooling path connected to the cooling path of the mounting shaft and the cooling path of the superconducting field coil is formed is provided on the outer peripheral side of the superconducting field coil, and the resin is hardened by rotational heating. The upper insulating material is adhered and fixed, and then the outer peripheral surface of the coil mounting shaft is processed, and a cylindrical body is fitted on the outer peripheral side of the coil mounting shaft, so that the superconducting field coil has the upper insulating material in the slot. Hold through Method of manufacturing a rotor of the superconducting rotating electrical machine is characterized in that as.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62291359A JP2586068B2 (en) | 1987-11-17 | 1987-11-17 | Rotor of superconducting rotating electric machine and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62291359A JP2586068B2 (en) | 1987-11-17 | 1987-11-17 | Rotor of superconducting rotating electric machine and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01133563A JPH01133563A (en) | 1989-05-25 |
| JP2586068B2 true JP2586068B2 (en) | 1997-02-26 |
Family
ID=17767905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62291359A Expired - Fee Related JP2586068B2 (en) | 1987-11-17 | 1987-11-17 | Rotor of superconducting rotating electric machine and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2586068B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2537292B2 (en) * | 1990-03-29 | 1996-09-25 | 超電導発電関連機器・材料技術研究組合 | Method for manufacturing rotor of superconducting rotating electric machine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57162931A (en) * | 1981-03-31 | 1982-10-06 | Mitsubishi Electric Corp | Rotor for superconductive rotary electric machine |
| JPS5980152A (en) * | 1982-10-28 | 1984-05-09 | Toshiba Corp | Superconductive rotor |
| JPS6223364A (en) * | 1985-07-22 | 1987-01-31 | Toshiba Corp | Manufacture of superconducting rotor |
| JPS62213546A (en) * | 1986-03-12 | 1987-09-19 | Mitsubishi Electric Corp | Rotor of superconducting rotary electric machine |
-
1987
- 1987-11-17 JP JP62291359A patent/JP2586068B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01133563A (en) | 1989-05-25 |
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