JPS63276293A - Superconductive shielding device - Google Patents
Superconductive shielding deviceInfo
- Publication number
- JPS63276293A JPS63276293A JP62110571A JP11057187A JPS63276293A JP S63276293 A JPS63276293 A JP S63276293A JP 62110571 A JP62110571 A JP 62110571A JP 11057187 A JP11057187 A JP 11057187A JP S63276293 A JPS63276293 A JP S63276293A
- Authority
- JP
- Japan
- Prior art keywords
- superconducting
- electronic circuit
- liquid nitrogen
- outside
- container
- 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.)
- Pending
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 239000002887 superconductor Substances 0.000 claims abstract 3
- 238000001816 cooling Methods 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims 2
- 239000011810 insulating material Substances 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 230000005292 diamagnetic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は超電導シールド装置に係り、特に、電子回路か
ら発生する電磁波が外部が出たり、若しくは外部からの
電磁波が電子回路へ侵入するのを防止するに好適な超電
導シールド装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a superconducting shield device, and particularly to a superconducting shield device that prevents electromagnetic waves generated from an electronic circuit from exiting from the outside or electromagnetic waves from the outside from entering the electronic circuit. The present invention relates to a superconducting shield device suitable for preventing.
従来の超電導材料を用いて、上記超電導シールド装置を
構成する場合、超電導材料の臨界温度が低いため、大規
模なヘリウム冷却装置が必要であった。このため、可搬
型の超電導シールド装置を組み込んだ電子機器等は考え
られていなかった。When constructing the superconducting shield device using conventional superconducting materials, a large-scale helium cooling device was required because the critical temperature of the superconducting materials was low. For this reason, no electronic equipment or the like incorporating a portable superconducting shield device has been considered.
しかし、最近、臨界温度が高い（約１００’Ｋ）超電導
材料が発見され、液体窒素による冷却で超電導状態を実
現できるようになった。また液体窒素はコンパクトなコ
ンプレッサを用いて空気中の気体窒素から生成できるよ
うになった。However, recently, superconducting materials with high critical temperatures (approximately 100'K) have been discovered, and it has become possible to achieve a superconducting state by cooling with liquid nitrogen. Additionally, liquid nitrogen can now be produced from gaseous nitrogen in the air using a compact compressor.
したがって、電子機器に組み込むことを目的とした可搬
型超電導シールド装置を構成することも可能になってき
た。Therefore, it has become possible to construct a portable superconducting shield device intended to be incorporated into electronic equipment.
尚、超電導シールド体に関しては、例えば特開昭６１−
１８３９７９号公報に開示されている。Regarding superconducting shield bodies, for example, Japanese Patent Application Laid-Open No. 1986-
It is disclosed in Japanese Patent No. 183979.
従来の超電導材ではヘリウム冷却が不可欠であり、可搬
型の超電導シールド装置は考えられていなかった。Conventional superconducting materials require helium cooling, and a portable superconducting shield device has not been considered.
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、電子機器に組み込める可搬型の超電導シー
ルド装置を提供することにある。The present invention has been made in view of the above points, and an object thereof is to provide a portable superconducting shield device that can be incorporated into electronic equipment.
上記目的は、臨界温度の高い超電導材料から成る電磁シ
ールド容器、電磁シールド容器の外側に設けた液体窒素
容器、及び空気中の気体窒素から液体窒素を生成する窒
素液化装置を組み合わせることにより、達成される。The above objective was achieved by combining an electromagnetic shield container made of superconducting material with a high critical temperature, a liquid nitrogen container installed outside the electromagnetic shield container, and a nitrogen liquefaction device that generates liquid nitrogen from gaseous nitrogen in the air. Ru.
〔作用〕
窒素液化装置は、空気中の気体窒素から液体窒素を生成
し、液体窒素容器に送る。このため、液体窒素容器の中
にある磁気シールド容器が液体窒素で冷却され超電導状
態になる。超電導状態の物質は、抵抗率が０であり、ま
た反磁性をもっているので、電磁波を透さない。したが
って電磁シールドが実現される。[Operation] A nitrogen liquefaction device generates liquid nitrogen from gaseous nitrogen in the air and sends it to a liquid nitrogen container. Therefore, the magnetic shield container inside the liquid nitrogen container is cooled by the liquid nitrogen and becomes superconducting. Superconducting materials have zero resistivity and are diamagnetic, so electromagnetic waves do not pass through them. Therefore, electromagnetic shielding is achieved.
以下、本発明の一実施例を図を用いて説明する。 An embodiment of the present invention will be described below with reference to the drawings.
図の実施例において、１は窒素液化装置、２は液体窒素
容器、３は液体窒素、４は電磁シールド容器、５は断熱
支持材、７は熱伝導支持材、８は超電導ケーブルであり
、電磁シールド容器３内の電子回路６と外部を電磁しや
へいする例を示す。In the illustrated embodiment, 1 is a nitrogen liquefier, 2 is a liquid nitrogen container, 3 is liquid nitrogen, 4 is an electromagnetic shielding container, 5 is a heat insulating support material, 7 is a heat conduction support material, 8 is a superconducting cable, and 8 is a superconducting cable. An example of electromagnetic shielding between the electronic circuit 6 inside the shield container 3 and the outside is shown.
図における窒素液化装置１は空気中の気体窒素を液化し
液体窒素３で液体窒素容器２の中を満た′す。断熱支持
材５と熱伝導支持材７で支持された電磁シールド容器４
は超電導材料で作成されており、液体窒素３で冷却され
超電導状態となる。ここで、熱電導支持材７を用いてい
るため、電磁シールド容器４の支持材に接した面も十分
に冷却され超電導状態となる。超電導ケーブル８は内部
の電子回路６と外部の回路との間の送電または通信を行
なうためのものである。A nitrogen liquefaction device 1 in the figure liquefies gaseous nitrogen in the air and fills a liquid nitrogen container 2 with liquid nitrogen 3. Electromagnetic shielding container 4 supported by heat insulating support material 5 and heat conduction support material 7
is made of superconducting material, and becomes superconducting when cooled with liquid nitrogen 3. Here, since the thermoconductive support material 7 is used, the surface of the electromagnetic shielding container 4 that is in contact with the support material is also sufficiently cooled and becomes a superconducting state. The superconducting cable 8 is for transmitting power or communicating between the internal electronic circuit 6 and an external circuit.
また、電子回路６の発熱は電磁シールド容器４を介して
周囲の液体窒素に吸収される。Further, the heat generated by the electronic circuit 6 is absorbed into the surrounding liquid nitrogen via the electromagnetic shielding container 4.
以上のように、本実施例によれば、電子回路６と超電導
シールド装置を一体化した可搬型の電子機器を構成する
ことができる。As described above, according to this embodiment, it is possible to configure a portable electronic device in which the electronic circuit 6 and the superconducting shield device are integrated.
本発明によれば、電子機器に組み込める可搬型の超電導
シールド装置を構成できる。According to the present invention, a portable superconducting shield device that can be incorporated into electronic equipment can be constructed.
図は本発明の超電導シールド装置の一実施例を示す断面
図である。The figure is a sectional view showing an embodiment of the superconducting shield device of the present invention.
Claims (1)
電子回路から発生して外部へ出る電磁波、若しくは外部
から侵入する電磁波を阻止することを特徴とする超電導
シールド装置。 ２、前記シールド体は超電導体が容器内で液体窒素で冷
却されて形成されることを特徴とする特許請求の範囲第
１項記載の超電導シールド装置。 ３、前記シールド体は、前記電子回路が収納されている
部屋の内面に設置されていることを特徴とする特許請求
の範囲第１項、又は第２項記載の超電導シールド装置。 ４、前記シールド体を液体窒素の容器に固定するための
支持材を断熱材と熱伝導材を接合して作成し、前記熱伝
導材側をシールド体に、断熱材側を液体窒素の容器に接
続したことを特徴とする特許請求の範囲第４項記載の超
電導シールド装置。[Scope of Claims] 1. A superconducting shield device characterized by covering an electronic circuit with a shield made of a superconductor to block electromagnetic waves generated from the electronic circuit and going out to the outside, or electromagnetic waves entering from the outside. 2. The superconducting shield device according to claim 1, wherein the shield body is formed by cooling a superconductor with liquid nitrogen in a container. 3. The superconducting shield device according to claim 1 or 2, wherein the shield body is installed on the inner surface of a room in which the electronic circuit is housed. 4. Create a supporting material for fixing the shield body to the liquid nitrogen container by bonding a heat insulating material and a heat conductive material, and attach the heat conductive material side to the shield body and the heat insulating material side to the liquid nitrogen container. The superconducting shield device according to claim 4, characterized in that the superconducting shield device is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62110571A JPS63276293A (en) | 1987-05-08 | 1987-05-08 | Superconductive shielding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62110571A JPS63276293A (en) | 1987-05-08 | 1987-05-08 | Superconductive shielding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63276293A true JPS63276293A (en) | 1988-11-14 |
Family
ID=14539208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62110571A Pending JPS63276293A (en) | 1987-05-08 | 1987-05-08 | Superconductive shielding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63276293A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01245598A (en) * | 1988-03-28 | 1989-09-29 | Japan Atom Energy Res Inst | High temperature superconductor zero magnetic field standard device |
| EP0445657A2 (en) * | 1990-03-08 | 1991-09-11 | Fujitsu Limited | Apparatus for eliminating trapping of magnetic flux from an object |
-
1987
- 1987-05-08 JP JP62110571A patent/JPS63276293A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01245598A (en) * | 1988-03-28 | 1989-09-29 | Japan Atom Energy Res Inst | High temperature superconductor zero magnetic field standard device |
| EP0445657A2 (en) * | 1990-03-08 | 1991-09-11 | Fujitsu Limited | Apparatus for eliminating trapping of magnetic flux from an object |
| US5164696A (en) * | 1990-03-08 | 1992-11-17 | Fujitsu Limited | Apparatus for eliminating trapping of magnetic flux from an object |
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