JPS6180877A - Lead for electric current for cryogenic unit - Google Patents
Lead for electric current for cryogenic unitInfo
- Publication number
- JPS6180877A JPS6180877A JP59201547A JP20154784A JPS6180877A JP S6180877 A JPS6180877 A JP S6180877A JP 59201547 A JP59201547 A JP 59201547A JP 20154784 A JP20154784 A JP 20154784A JP S6180877 A JPS6180877 A JP S6180877A
- Authority
- JP
- Japan
- Prior art keywords
- pipes
- outer casing
- lead
- coolant
- conductive metal
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/68—Connections to or between superconductive connectors
Abstract
Description
【発明の詳細な説明】
［発明の技術分野］
不発ＢＡ／ｒｉ超電導（ロ）転短；機の回転子の電流リ
ードのような、高強度と高冷却性を御シ２．常温部分か
ら低温部分に電流を供給する極低温装置用電流リードに
関する。[Detailed Description of the Invention] [Technical Field of the Invention] Unexploded BA/ri superconducting (b) short circuit; provides high strength and high cooling performance, such as the current lead of the rotor of a machine.2. This invention relates to a current lead for a cryogenic device that supplies current from a normal temperature part to a low temperature part.
［発明の技術的背景とその問題点］
従来、常温部分から低温部分、特に液体ヘリウム温度領
域に大電流を供給する鳩舎、常温部分からの伝導熱及び
電流によるジュール熱か低温部分に侵入しない様にする
ために、電流リードをヘリウムのＡ発ガス等で冷却する
ことが行なわれている。この初期のものけ単に円筒状の
′電流リードの外周’ｅ、ヘリウムの蒸発ガスで冷却す
ることが行なわれたが、冷却性能があまり良好でないた
め、電流リードの内部に熱交換器を設は之タイプのもの
が、種々提案されている。この電流リード内の熱交換器
は、冷却フィンを多数配置したり、網状の電気導体を使
用したりして構成されろ鳩舎が多い。[Technical background of the invention and its problems] Conventionally, pigeon houses have been designed to supply a large current from a normal temperature part to a low temperature part, especially in the liquid helium temperature range, and to prevent Joule heat caused by conduction heat and current from the normal temperature part from penetrating into the low temperature part. To achieve this, current leads are cooled with helium A gas or the like. In this early stage, a cylindrical ``outer circumference'' of the current lead was cooled with evaporated helium gas, but the cooling performance was not very good, so a heat exchanger was not installed inside the current lead. Various things of this type have been proposed. The heat exchanger in this current lead is often constructed by arranging a large number of cooling fins or using a mesh-like electric conductor.
そのｔ−め、このような電流リードは静止形の糠低温装
置用としては良好な性能が呵られるが、超電辱回転鷲機
の回転子の電流リードのようＣ二強大な遠心力が加わる
ような椙合仁は、柿械的強度が十分でないという欠点が
あった。On the other hand, such current leads are expected to have good performance for use in static bran cryogenic equipment, but they are subject to strong centrifugal force, such as the current lead of the rotor of a super-torture machine. Sugigojin, such as this one, had the drawback of not having sufficient persimmon mechanical strength.
［発明の目的］
本発明は機械的に強く、かつ冷却性能のよい極低温装置
用電流リードを提供することを目的とする０
［発明の概要］
本発明の極低温装置用電流リードは導電性金属からなる
多数のパイプを相互に撚りあわせた上で導電性金属から
なる外筒内に挿入し、外筒内の空隙を導電性充填部材で
密に充填し、パイプ内部を冷媒流路とし、外筒の両端に
常温側端子と低温側端子とを接続したことに特徴を有す
るもので、外筒内をパイプと充填部材で密にしたことで
機械的強度をＸにし多数の撚り合わされたパイプ内部を
冷媒流路にし之ことで冷媒の流れを旋回流とし、冷却性
能を向上するものである０
［発明の実施例コ
以下、本発明の実施例について第１図および第２図を参
照して説明する。[Object of the Invention] An object of the present invention is to provide a current lead for a cryogenic device that is mechanically strong and has good cooling performance. [Summary of the Invention] The current lead for a cryogenic device of the present invention is electrically conductive. A large number of pipes made of metal are twisted together and inserted into an outer cylinder made of conductive metal, the void inside the outer cylinder is densely filled with a conductive filling member, and the inside of the pipe is used as a refrigerant flow path. It is characterized by connecting a normal temperature side terminal and a low temperature side terminal to both ends of the outer cylinder, and by making the inside of the outer cylinder dense with pipes and filling materials, the mechanical strength is increased to X, and it is made of a large number of twisted pipes. By making the inside a refrigerant flow path, the flow of the refrigerant becomes a swirling flow, thereby improving the cooling performance. I will explain.
導１Ｌ性金属からなる断面形状が円形の多姦ｖ（第２図
でｔ−ｊ：４７本）のパイプ（１）をノ・ンダ（釧ろ９
でも良い）メッキを施し、相互に庇に撚り合わオ、導電
性金属からなる円筒状の外筒（２）内に挿入し、外筒（
２）内の空隙を溶解した４市性金属を外筒（２）内の空
隙に流し込む、この際外筒（２）内周にノ・ンダ（銀ろ
うでも良い）メッキを施しておく。こうするとにエリパ
イプ（１）と外筒（２）内周のノ１ンダメツキ部が溶融
し、その後冷却することによってノくイブ（１）。A pipe (1) made of conductive metal with a circular cross-sectional shape (t-j: 47 pieces in Figure 2) is
The outer tube (2) is plated, twisted together around the eaves, and inserted into the cylindrical outer tube (2) made of conductive metal.
2) Pour the melted metal into the void in the outer cylinder (2). At this time, the inner periphery of the outer cylinder (2) is plated with solder (silver solder may be used). When this is done, the no. 1 dotted portions on the inner periphery of the ellipipe (1) and the outer cylinder (2) are melted, and then cooled to form the nozzle tube (1).
外筒（２）、充填部材（，３）が一体化し、電気及び熱
の伝導が良好でかつ機械的に強固となる。ノ（イブ内部
は冷媒６路（４）とじ外筒（２）の両端には常温部１端
子（５）と低温側端子（６）を９続する。外筒（２）の
外周には絶縁被覆（７）を設ける。The outer cylinder (2) and the filling member (, 3) are integrated, resulting in good electrical and thermal conduction and mechanical strength. There are 6 refrigerant channels (4) inside the tube, and 1 normal temperature terminal (5) and 9 low temperature terminals (6) are connected at both ends of the outer tube (2). A coating (7) is provided.
次に作用について説明する。Next, the effect will be explained.
電流はパイプ（１）、外筒（２）、光填都（３）を流れ
る。Current flows through the pipe (1), the outer cylinder (2), and the light cap (3).
そのため、ジュール熱がこの部分に発生し、さらに常温
部である常温側端子（５）から低温部である低 １温
側端子（６）へ伝導する熱もパイプ（１）、外筒Ｉ２）
、充填部材（３）を伝導して行くｏこれらの熱の低温部
への侵入を阻止するため、パイプ（１）の冷媒通路（４
）にヘリウムガス等の冷媒を流し、パイプ（１）の内面
から熱を取りさる。この熱交換作用は電流リード内。Therefore, Joule heat is generated in this part, and heat is also conducted from the normal temperature side terminal (5) which is the normal temperature part to the low temperature side terminal (6) which is the low temperature part (pipe (1), outer cylinder I2).
, the refrigerant passage (4) of the pipe (1) to prevent the heat from entering the low-temperature part.
) to remove heat from the inner surface of the pipe (1) by flowing a refrigerant such as helium gas. This heat exchange action occurs within the current leads.
の冷媒の流れが旋回流となっているため、多数のフィン
を使用した従来例と同等以上の性能が得られる上に、高
遠心力場などで冷媒の分布にかたよりが出た場合でも、
パイプ＋１）がより合わされているので電流リードの温
度分布にか比エリが生じず熱侵入を低く押さえられる利
点を有する０また、パイプｍＨ外筒（２）、充填部材（
３）と密に一体化しているため、外筒（２）、充填部材
（３）の熱も効率良く除去される。尚パイプ（１１の冷
却通路（４）の形状をパイプ（１）の外形の円形と同じ
Ｃ二する必要はなく、例えば四角形でも良いし、冷却作
用をさらに高めるために内面に凹凸を付けたものでもよ
い０以上のような冷却効果に加えて１本実施例の電流リ
ードは多数のパイプ（１）が充填部材（３）と共に外筒
（２）内に密に充填されて一体化されているために機械
的（ユ非常に強い。このため、超電埒回転電機の回転子
の電流リードの様に高遠心力場中に置かれるものや、機
械的に大きな力を受ける電流＋７−ドに適している。Since the refrigerant flow is a swirling flow, it is possible to obtain performance equivalent to or better than the conventional example using many fins, and even when the refrigerant distribution becomes uneven due to high centrifugal force fields, etc.
Since the pipes (pipe +1) are twisted together, there is no specific error in the temperature distribution of the current leads, which has the advantage of keeping heat intrusion low.
3), heat from the outer cylinder (2) and the filling member (3) is also efficiently removed. Note that the shape of the cooling passage (4) of the pipe (11) does not have to be the same as the circular outer shape of the pipe (1); for example, it may be square, or it may have an uneven inner surface to further enhance the cooling effect. In addition to the cooling effect of 0 or more, the current lead of this embodiment has a large number of pipes (1) and a filling member (3) densely packed inside the outer cylinder (2) and integrated. Because of this, it is very strong mechanically.For this reason, it is suitable for items that are placed in a high centrifugal force field, such as the current lead of the rotor of a superelectric rotating electric machine, or for current leads that are subject to large mechanical forces. ing.
本発明は上記し、かつ図１および図２に示した実施例の
他に図３に示すようにパイプ（１）の断面外形を正方形
のようにしても良いし、図４のように六角形のようにし
ても良い。このようにするとパイプの占積率がＦｎ上す
る。In addition to the embodiments described above and shown in FIGS. 1 and 2, the pipe (1) may have a square cross-sectional shape as shown in FIG. 3, or a hexagonal shape as shown in FIG. You can also do it like this. In this way, the space factor of the pipe increases by Fn.
尚、パイプ（１）、外筒（２）等の形状は上記実施例の
他の形状としても良い。Note that the shapes of the pipe (1), outer cylinder (2), etc. may be other shapes than those in the above embodiments.
［発明の効果］
以上説明したように、不発明によれば、導電性金属から
なる多数のパイプを相互に撚り合わせ。[Effects of the Invention] As explained above, according to the invention, a large number of pipes made of conductive metal are twisted together.
これらを導電性金属からなる外筒内に挿入し、外筒内の
空隙を導電性充填部材で密に充填したから、機械的に極
めて強固となる。又、パイプ内を冷媒通路とし、パイプ
を擦ったこと（二より冷媒は旋回流となり、冷却性能の
よい極低温装置用電流、リードを提供することができる
。These are inserted into an outer cylinder made of conductive metal, and the gaps within the outer cylinder are densely filled with a conductive filling member, making it extremely strong mechanically. In addition, by using the inside of the pipe as a refrigerant passage and rubbing the pipe (the refrigerant becomes a swirling flow, it is possible to provide current and leads for cryogenic equipment with good cooling performance.
第１図は本発明の極低温装置用電流リードの第１の実施
例を示す要部破断立面図、第２図に第１図１２）ＩＩ
−ＩＩ観に沿う矢視拡大断面図、第３図およびｐＦ ４
図は第２および第３の実施例を示す断面図である。
ｌ・・・パイプ ２・・・外筒３・・・充填部
材 ４・・・冷媒通路５・・・常温側端子
６・・・低温側端子代理人 弁理士 則 近 憲 佑（
ほか１名）第１図
第２図Fig. 1 is a cutaway elevational view of the main parts showing the first embodiment of the current lead for cryogenic equipment of the present invention, and Fig.
- Enlarged cross-sectional view along the arrow II view, Figure 3 and pF 4
The figure is a sectional view showing the second and third embodiments. l...pipe 2...outer cylinder 3...filling member 4...refrigerant passage 5...normal temperature side terminal
6...Low temperature side terminal agent Patent attorney Noriyuki Chika (
1 other person) Figure 1 Figure 2
Claims (3)
置用電流リードにおいて、導電性金属からなる多数のパ
イプを相互に撚り合わせ、これらを導電性金属からなる
外筒内に挿入し、外筒内の空隙を導電性充填部材で密に
充填し、パイプ内部を冷媒流路とし、外筒の両端に常温
側端子と低温側端子とを接続したことを特徴とする極低
温装置用電流リード。(1) In a current lead for a cryogenic device that supplies current from a room-temperature part to a low-temperature part, a number of pipes made of conductive metal are twisted together, and these are inserted into an outer cylinder made of conductive metal. A current lead for a cryogenic device, characterized in that the gap inside the cylinder is densely filled with a conductive filling member, the inside of the pipe is used as a refrigerant flow path, and a normal temperature side terminal and a low temperature side terminal are connected to both ends of the outer cylinder. .
であることを特徴とする特許請求の範囲第１項に記載の
極低温装置用電流リード。(2) The current lead for a cryogenic device according to claim 1, wherein the pipe has a regular hexagonal or square cross-sectional shape.
を特徴とする特許請求の範囲第１項または第２項に記載
の極低温装置用電流リード。(3) A current lead for a cryogenic device according to claim 1 or 2, wherein the current lead is disposed within a rotor of a rotating electric machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59201547A JPS6180877A (en) | 1984-09-28 | 1984-09-28 | Lead for electric current for cryogenic unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59201547A JPS6180877A (en) | 1984-09-28 | 1984-09-28 | Lead for electric current for cryogenic unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6180877A true JPS6180877A (en) | 1986-04-24 |
| JPH0512874B2 JPH0512874B2 (en) | 1993-02-19 |
Family
ID=16442857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59201547A Granted JPS6180877A (en) | 1984-09-28 | 1984-09-28 | Lead for electric current for cryogenic unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6180877A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993021642A1 (en) * | 1992-04-10 | 1993-10-28 | Trustees Of Boston University | Composite lead for conducting an electrical current between 75-80 k and 4.5 k temperatures |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54599A (en) * | 1977-06-03 | 1979-01-05 | Hitachi Ltd | Superconductive magnet |
| JPS54140495A (en) * | 1978-04-21 | 1979-10-31 | Mitsubishi Electric Corp | Superconductive device |
-
1984
- 1984-09-28 JP JP59201547A patent/JPS6180877A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54599A (en) * | 1977-06-03 | 1979-01-05 | Hitachi Ltd | Superconductive magnet |
| JPS54140495A (en) * | 1978-04-21 | 1979-10-31 | Mitsubishi Electric Corp | Superconductive device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993021642A1 (en) * | 1992-04-10 | 1993-10-28 | Trustees Of Boston University | Composite lead for conducting an electrical current between 75-80 k and 4.5 k temperatures |
| US5376755A (en) * | 1992-04-10 | 1994-12-27 | Trustees Of Boston University | Composite lead for conducting an electrical current between 75-80K and 4.5K temperatures |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0512874B2 (en) | 1993-02-19 |
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