JP2980635B2 - Superconducting rotating electric machine rotor - Google Patents
Superconducting rotating electric machine rotorInfo
- Publication number
- JP2980635B2 JP2980635B2 JP2080621A JP8062190A JP2980635B2 JP 2980635 B2 JP2980635 B2 JP 2980635B2 JP 2080621 A JP2080621 A JP 2080621A JP 8062190 A JP8062190 A JP 8062190A JP 2980635 B2 JP2980635 B2 JP 2980635B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- mounting shaft
- superconducting
- electric machine
- poles
- 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 - Fee Related
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
- 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
- Motor Or Generator Cooling System (AREA)
- Superconductive Dynamoelectric Machines (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ この発明は、超電導回転電機の回転子に関し、もう少
し詳しくいうと、同心的に巻回された鞍型の複数個の部
分コイルからなる超電導界磁コイルの極間接続構造に着
目した超電導回転電機の回転子に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotor of a superconducting rotating electric machine, and more specifically, a superconducting field comprising a plurality of saddle-shaped partial coils wound concentrically. The present invention relates to a rotor of a superconducting rotary electric machine focusing on a connection structure between poles of a magnetic coil.
［従来の技術］ 従来、この種の回転子として第４図に示すものがあ
り、図において、円筒状のコイル取付軸（２）に超電導
界磁コイル（３）が固定されている。トルクチューブ
（１）とコイル取付軸（２）を囲繞して常温ダンパ
（４）が、常温ダンパ（４）とコイル取付軸（２）の間
に低温ダンパ（５）がそれぞれ設けられている。コイル
取付軸（２）の外周部および側面部にはそれぞれヘリウ
ム外筒（６）およびヘリウム端板（７）が取付られてい
る。（８）および（９）はそれぞれ駆動側、反駆動側端
部軸で、軸受（10）により支承されている。（11）は界
磁電流供給用のスリップリングである。トルクチューブ
（１）には熱交換器（12）が配置されている。（13）は
側部輻射シールド、（14）は真空部である。[Prior Art] Conventionally, there is a rotor of this type shown in FIG. 4, in which a superconducting field coil (3) is fixed to a cylindrical coil mounting shaft (2). A room temperature damper (4) is provided surrounding the torque tube (1) and the coil mounting shaft (2), and a low temperature damper (5) is provided between the room temperature damper (4) and the coil mounting shaft (2). A helium outer cylinder (6) and a helium end plate (7) are attached to an outer peripheral portion and a side portion of the coil attachment shaft (2), respectively. (8) and (9) are drive-side and non-drive-side end shafts, respectively, which are supported by bearings (10). (11) is a slip ring for supplying a field current. A heat exchanger (12) is arranged in the torque tube (1). (13) is a side radiation shield, and (14) is a vacuum part.
上記の構成により、コイル取付軸（２）に配設されて
いる超電導界磁コイル（３）を極低温に冷却して電気抵
抗を零の状態とし、励磁損失をなくすことにより、超電
導界磁コイル（３）に強力な磁界を発生させ、固定子
（図示せず）に交流電力を発生させる。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）およびコイル取付軸
（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、かつ、熱交換器（12）により、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
造となっている。さらに、側部輻射シールド（13）は側
面からの輻射により侵入する熱を低減する。ここで、超
電導界磁コイル（３）は、同心状に巻回された複数個の
鞍型の部分コイルを直列接続したものである。第５図，
第６図は、例えば特開昭61−196763号公報，特開昭63−
228959号公報に示された従来の極間接続構造である。図
において、（15）はコイル取付軸（２）の端部表面上に
円周方向に形成された極間わたり溝、（16）は部分コイ
ル（3a）（3b）につながる極間わたり線、（17）は極間
わたり線（16）の接続部、（20）はスロットである。With the above configuration, the superconducting field coil (3) disposed on the coil mounting shaft (2) is cooled to a cryogenic temperature to reduce the electric resistance to zero, thereby eliminating the excitation loss. A strong magnetic field is generated in (3), and AC power is generated in a stator (not shown). In order to cool and maintain the superconducting field coil (3) at a cryogenic 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). Helium end plate (7)
While supplying the liquid helium container formed by
The inside of the rotor is maintained at a high vacuum by the vacuum section (14),
The torque tube (1) for transmitting rotational torque to the cryogenic superconducting field coil (3) and the coil mounting shaft (2) is a thin-walled cylinder, and the heat exchanger (12) allows the cryogenic temperature through the torque tube (1). It has a structure that minimizes heat entering the part. Further, the side radiation shield (13) reduces heat entering by radiation from the side surface. Here, the superconducting field coil (3) is formed by connecting a plurality of saddle-shaped partial coils wound concentrically in series. Fig. 5,
FIG. 6 shows, for example, JP-A-61-196763 and JP-A-63-196763.
This is a conventional inter-electrode connection structure disclosed in Japanese Patent No. 228959. In the drawing, (15) is a pole crossing groove formed in the circumferential direction on the end surface of the coil mounting shaft (2), (16) is a pole crossing line connected to the partial coils (3a) and (3b), (17) is a connection portion of the crossover line (16), and (20) is a slot.
［発明が解決しょうとする課題］ 従来の超電導回転電機の回転子では、超電導界磁コイ
ルの極間接続構造が以上のように構成されており、極間
わたり溝（15）をコイル取付軸（２）に形成する必要が
あつた。ところでコイル取付軸（２）には極低温におけ
る強度が高い金属、例えば鉄基超合金，ニツケル基超合
金，チタンあるいはチタン合金が使用されるが、いずれ
も難切削材料であり、極間わたり溝（15）の機械加工に
多大の時間と費用を要した。さらに、コイル取付軸の端
部に極間わたり溝（15）を設けているため、コイル取付
軸（２）の長さひいては回転子の軸長が増大するという
問題点があつた。[Problem to be Solved by the Invention] In the rotor of the conventional superconducting rotary electric machine, the connection structure between the poles of the superconducting field coil is configured as described above. It was necessary to form in 2). The coil mounting shaft (2) is made of a metal having a high strength at a very low temperature, for example, an iron-based superalloy, a nickel-based superalloy, titanium or a titanium alloy. It took a lot of time and money to machine (15). Further, since the groove (15) is provided between the poles at the end of the coil mounting shaft, there is a problem that the length of the coil mounting shaft (2) and thus the axial length of the rotor increase.
この発明は上記のような問題点を解消とするためにな
されたもので、超電導界磁コイルの極間接続の製作が容
易、かつ、軸長が短い超電導回転電機の回転子を得るこ
とを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to obtain a rotor of a superconducting rotary electric machine in which the connection between the poles of a superconducting field coil is easy and the shaft length is short. And
［課題を解決するための手段］ この発明に係る超電導回転電機の回転子は、切り欠き
部をコイル取付軸の極間ティースに隣り合うスロットの
回転軸と平行なコイル直線部間をコイル取付軸の周方向
に連通するように設け、極間わたり線を切り欠き部を通
してコイル直線部で超電導界磁コイルの極間接続を行う
ようにしたものである。[Means for Solving the Problems] In a rotor of a superconducting rotary electric machine according to the present invention, a notch is provided between a coil straight part parallel to a rotation axis of a slot adjacent to a tooth between poles of a coil mounting shaft. Are provided so as to communicate with each other in the circumferential direction of the superconducting field coil through the cut-out portion of the wire passing between the poles to connect the poles of the superconducting field coil.
［作 用］ この発明においては、切り欠き部がコイル取付軸の極
間ティースに隣り合うスロットの回転軸と平行なコイル
直線部間をコイル取付軸の周方向に連通するように設け
られているので、溝の長さが短縮され、極間わたり線の
長さを最短にできる。そして、超電導界磁コイルの極間
接続がコイル直線部で行われているので、極間接続部の
長さが確保され、十分な接続強度が得られ、接続抵抗の
提言が図られる。[Operation] In the present invention, the cutout portion is provided so as to communicate in the circumferential direction of the coil mounting shaft between the coil linear portions parallel to the rotation axis of the slot adjacent to the teeth between the poles of the coil mounting shaft. Therefore, the length of the groove is shortened, and the length of the line across the pole can be minimized. Further, since the connection between the poles of the superconducting field coil is performed at the coil straight portion, the length of the connection between the poles is ensured, sufficient connection strength is obtained, and a connection resistance is proposed.
［実施例］ 第１図〜第３図はこの発明の一実施例を示し、図にお
いて、（18）は極間中心に位置する極間ティース、（1
9）は極間ティース（18）の頂部に形成された切り欠き
部である。極間わたり線（16）は切り欠き部（19）を経
由して部分コイル（3a）（3b）につながる。極間接続部
（17）は部分コイル（3a）の直線部に設けられている。
その他の構成は第４図に示したと同等である。[Embodiment] FIGS. 1 to 3 show an embodiment of the present invention. In the drawings, (18) is a tooth between poles located at the center of the pole, (1)
9) is a notch formed at the top of the teeth (18). The crossover line (16) is connected to the partial coils (3a) and (3b) via the notch (19). The pole-to-pole connection part (17) is provided in the straight part of the partial coil (3a).
Other configurations are the same as those shown in FIG.
以上の構成により、極間わたり溝を形成するための加
工が不要となり、コイル取付軸（２）の長さが短縮され
る。また、切り欠き部（19）が極間ティース（18）に設
けられているので、溝の長さが短縮され、極間わたり線
（16）の長さを最短にできる。そして、極間接続部（1
7）が部分コイル（3a）の直線部に設けられているの
で、極間接続部（17）の長さが確保され、十分な接続強
度が得られ、接続抵抗の低減が図られる。According to the above configuration, the processing for forming the groove extending between the poles is not required, and the length of the coil mounting shaft (2) is reduced. Further, since the notch (19) is provided in the tooth (18) between the poles, the length of the groove is reduced, and the length of the crossover line (16) can be minimized. Then, the pole connection (1
Since (7) is provided in the linear portion of the partial coil (3a), the length of the interpole connecting portion (17) is secured, sufficient connection strength is obtained, and the connection resistance is reduced.
なお、上記実施例では極間接続部（17）を部分コイル
（3a）側に配置したが、（3b）側に配置してもよく、同
様の効果が得られる。また、第３図において極間わたり
線（16）を横に並べて接続しているが、縦に並べて接続
してもよい。In the above embodiment, the interelectrode connecting portion (17) is arranged on the partial coil (3a) side, but may be arranged on the (3b) side, and the same effect can be obtained. Further, in FIG. 3, the crossover lines (16) are connected side by side, but may be connected vertically.
［発明の効果］ 以上の説明から明らかなように、この発明は、切り欠
き部をコイル取付軸の極間ティースに隣り合うスロット
の回転軸と平行なコイル直線部間をコイル取付軸の周方
向に連通するように設け、極間わたり線を切り欠き部を
通してコイル直線部で超電導界磁コイルの極間接続を行
うようにしたので、極間わたり溝が不要となり、製作性
が向上し、かつ、小型化ができる効果が得られる。[Effects of the Invention] As is apparent from the above description, the present invention provides a notch portion between a coil linear portion parallel to a rotation axis of a slot adjacent to a tooth between poles of a coil mounting shaft in a circumferential direction of the coil mounting shaft. The superconducting field coil is connected between the poles of the superconducting field coil at the coil straight section through the notch, so that the gap between the poles is unnecessary, and the manufacturability is improved. The effect of miniaturization can be obtained.
第１図はこの発明の一実施例の要部展開図、第２図は第
１図のII−II線に沿う平面での断面図、第３図は第１図
のIII−III線に沿う平面での断面図、第４図は従来の超
電導回転電機の回転子の縦断面図、第５図は第４図のも
のの要部展開図、第６図は第５図のVI−VI線に沿う平面
での断面図である。 （２）……コイル取付軸、（３）超電導界磁コイル、
（3a）（3b）……部分コイル、（16）……極間わたり
線、（17）……極間接続部、（18）……極間ティース、
（19）……切り欠き部、（20）……スロット。 なお、各図中、同一符号は同一または相当部分を示す。FIG. 1 is an exploded view of an essential part of an embodiment of the present invention, FIG. 2 is a sectional view taken along a line II-II of FIG. 1, and FIG. 3 is a sectional view taken along a line III-III of FIG. FIG. 4 is a longitudinal sectional view of a rotor of a conventional superconducting rotating electric machine, FIG. 5 is a development view of a main part of FIG. 4, and FIG. 6 is a VI-VI line of FIG. It is sectional drawing in the plane along. (2) ... coil mounting shaft, (3) superconducting field coil,
(3a) (3b) ... Partial coil, (16) ... Crossover wire between poles, (17) ... Connection between poles, (18) ... Teeth between poles,
(19) Notch, (20) Slot. 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55−74362（ＪＰ，Ａ) 特開 昭63−228960（ＪＰ，Ａ) 特開 昭54−113808（ＪＰ，Ａ) 特開 昭59−47963（ＪＰ，Ａ) 特開 昭55−71141（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-55-74362 (JP, A) JP-A-63-228960 (JP, A) JP-A-54-113808 (JP, A) 47963 (JP, A) JP-A-55-71141 (JP, A)
Claims (1)
れた複数個の鞍型の部分コイルからなる超電導界磁コイ
ルと、前記コイル取付軸に形成されて前記超電導界磁コ
イルを収納するスロットとを備えた超電導回転電機の回
転子において、切り欠き部を前記コイル取付軸の極間テ
ィースに隣り合う前記スロットの回転軸と平行なコイル
直線部間を前記コイル取付軸の周方向に連通するように
設け、極間わたり線を前記切り欠き部を通して前記コイ
ル直線部で前記超電導界磁コイルの極間接続を行うよう
にしたことを特徴とする超電導回転電機の回転子。1. A superconducting field coil comprising a cylindrical coil mounting shaft, a plurality of saddle-shaped partial coils wound concentrically, and a superconducting field coil formed on the coil mounting shaft. A slot for storing the superconducting rotating electric machine, wherein the cutout portion is formed between the coil linear portion parallel to the rotation axis of the slot adjacent to the tooth between the poles of the coil mounting shaft in the circumferential direction of the coil mounting shaft. The superconducting rotary electric machine rotor is provided so that the superconducting field coil is connected to the superconducting field coil at the coil linear portion through the notch portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2080621A JP2980635B2 (en) | 1990-03-30 | 1990-03-30 | Superconducting rotating electric machine rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2080621A JP2980635B2 (en) | 1990-03-30 | 1990-03-30 | Superconducting rotating electric machine rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03284163A JPH03284163A (en) | 1991-12-13 |
| JP2980635B2 true JP2980635B2 (en) | 1999-11-22 |
Family
ID=13723423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2080621A Expired - Fee Related JP2980635B2 (en) | 1990-03-30 | 1990-03-30 | Superconducting rotating electric machine rotor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2980635B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6051356B2 (en) * | 1978-11-27 | 1985-11-13 | 株式会社日立製作所 | Superconducting rotor field winding connection device |
| JPS63228960A (en) * | 1987-03-16 | 1988-09-22 | Mitsubishi Electric Corp | Rotor for superconducting rotary electric machine |
-
1990
- 1990-03-30 JP JP2080621A patent/JP2980635B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03284163A (en) | 1991-12-13 |
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