JPH01151123A - Superconductive temperature switch - Google Patents
Superconductive temperature switchInfo
- Publication number
- JPH01151123A JPH01151123A JP62309942A JP30994287A JPH01151123A JP H01151123 A JPH01151123 A JP H01151123A JP 62309942 A JP62309942 A JP 62309942A JP 30994287 A JP30994287 A JP 30994287A JP H01151123 A JPH01151123 A JP H01151123A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- superconductor
- random
- switch
- potential difference
- 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
- 239000002887 superconductor Substances 0.000 claims abstract description 24
- 239000011810 insulating material Substances 0.000 claims description 4
- 230000005389 magnetism Effects 0.000 abstract description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 6
- 229910000859 α-Fe Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/005—Mechanisms for operating contacts making use of superconductivity, e.g. levitation switch
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、任意温度で電流を制限する温度スイッ、チに
関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a temperature switch that limits current at any temperature.
従来の技術
従来の温度スイッチは感温フェライトとマグネットとリ
ードスイッチの組合せによシ、感温フェライトが任意温
度に達すると磁束を失う現象を利用してリードスイッチ
をＯＮ又はＯＦＦさせる（日本ハムリン株式会社発行の
リードスイッチの知識）。その構成を第４図に示す。Ａ
は感温フェライト、Ｂはマグネット、Ｃはリードスイッ
チで２ベーノ
ある。同図ａに於いて、任意温度以下では感温フェライ
）ＡとマグネットＢが閉磁路を作シ、リードスイッチＣ
には何も作用していないため接点は″開″である。同図
すに於いて、任意温度以上になると感温フェライ）Ａが
磁性を失い、マグネットＢの磁束がリードスイッチＣに
作用し、接点をパ閉″させる。Conventional technology A conventional temperature switch is a combination of a temperature-sensitive ferrite, a magnet, and a reed switch.The reed switch is turned on or off by utilizing the phenomenon in which the temperature-sensitive ferrite loses magnetic flux when it reaches a certain temperature (Nippon Hamlin Co., Ltd.). company issued reed switch knowledge). Its configuration is shown in FIG. A
is a temperature-sensitive ferrite, B is a magnet, and C is a reed switch, and there are 2 benos. In the same figure a, below an arbitrary temperature, temperature-sensitive ferrite A and magnet B create a closed magnetic path, and reed switch C
Since nothing is acting on , the contact is "open". In the figure, when the temperature exceeds a certain temperature, the temperature-sensitive ferrite A loses its magnetism, and the magnetic flux of the magnet B acts on the reed switch C, causing the contact to close.
発明が解決しようとする問題点
しかし、従来の構成では、接点の開閉のたびに火花放電
が発生し、接点の摩耗や溶着といった問題が生じると共
に、他の機器への電磁障害の原因ともなる。又、使用上
の問題として、磁性体の近くに取付ける場合は、磁性体
の影響によシ設定温度が変化することがあるという問題
を有している。Problems to be Solved by the Invention However, in the conventional configuration, spark discharge occurs every time the contacts open and close, causing problems such as contact wear and welding, and also causing electromagnetic interference to other equipment. Another problem in use is that when installed near a magnetic material, the set temperature may change due to the influence of the magnetic material.
本発明は、上記問題点を解消するために、無接点でしか
も磁気相互干渉による影響のない温度スイッチを提供す
ることを目的とする。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, it is an object of the present invention to provide a temperature switch that is contactless and is not affected by mutual magnetic interference.
問題点を解決するための手段
上記目的を達成するために本発明の超電導温度スイッチ
は、任意温度で完全伝導性現象を示す超３ヘ−７
電導体の両端を２本の電線で接続し、この超電導体を感
温筒に伝熱性絶縁材料を介して絶縁収納する構成とした
ものである。Means for Solving the Problems In order to achieve the above object, the superconducting temperature switch of the present invention has a superconducting temperature switch that exhibits a perfect conductivity phenomenon at any temperature.Both ends of a superconductor are connected by two wires, This superconductor is insulated and housed in a temperature-sensitive cylinder via a heat-conductive insulating material.
作 用
本発明は上記した構成によシ、任意温度よりも高い温度
では超電導体は所定の抵抗Ｒ工〔Ω〕を有しておシ、任
意温度以下では完全伝導性現象によシ抵抗は０〔Ω〕と
なる。従って超電導体に電流工〔Ａ〕を流している場合
、任意温度よシ高い時は超電導体の両端にはＩ−Ｒｘ（
Ｖ）の電位差が生じるが、任意温度以下では０［Ｖ〕と
なシ、この電位差の変化によシスイッチとして動作する
ものである。Operation The present invention has the above-mentioned configuration. At a temperature higher than an arbitrary temperature, the superconductor has a predetermined resistance R [Ω], and below an arbitrary temperature, the resistance decreases due to a phenomenon of perfect conductivity. It becomes 0 [Ω]. Therefore, when an electric current [A] is flowing through a superconductor, if the temperature is higher than an arbitrary temperature, I-Rx (
A potential difference of V) is generated, but it becomes 0 [V] below an arbitrary temperature, and it operates as a switch due to the change in this potential difference.
実施例
第１図は本発明の一実施例を示す外観図、第２図はその
断面図で、１は超電導温度スイッチ本体、２は任意温度
以下で完全伝導性現象を示す超電導体、３は超電導体２
の両端に接続された電線、４は感温筒、５は伝熱性絶縁
材料で超電導体２を感温筒４内に絶縁収納する。Embodiment FIG. 1 is an external view showing an embodiment of the present invention, and FIG. 2 is a cross-sectional view thereof, in which 1 is the main body of a superconducting temperature switch, 2 is a superconductor that exhibits a perfect conductivity phenomenon below an arbitrary temperature, and 3 is a superconductor that exhibits a perfect conductivity phenomenon below an arbitrary temperature. superconductor 2
The superconductor 2 is insulated and housed in the temperature sensing tube 4 using electric wires connected to both ends of the tube, 4 a temperature sensing tube, and 5 a heat conductive insulating material.
第３図は本発明の一実施例の動作回路で、６は電源、７
は抵抗であシ、超電導体２は抵抗７と直列に接続され電
源６に接続されている。FIG. 3 shows an operating circuit of an embodiment of the present invention, in which 6 is a power supply, 7
is a resistor, and the superconductor 2 is connected in series with a resistor 7 and connected to a power source 6.
以上の様に構成された本発明の超電導温度スイッチ１の
動作について説明する。超電導体２は任意温度より高い
温度では所定の抵抗Ｒｘ〔Ω〕を有しており、任意温度
以下では完全伝導性現象を示し抵抗はｏＣＱ〕となる。The operation of the superconducting temperature switch 1 of the present invention configured as above will be explained. The superconductor 2 has a predetermined resistance Rx [Ω] at a temperature higher than an arbitrary temperature, and exhibits a perfect conductivity phenomenon and has a resistance of oCQ] below an arbitrary temperature.
一方、抵抗７は温度には殆んど変化せずＲ〔Ω〕を有し
ている。従って、この回路系に流れる電流をＩ ［Ａ］
とすると、任意温度よシ高い時は、超電導体２の両端の
電位差ｖＯＵＴは工・Ｒｘ〔ｖ′３ あり、任意温度
以下の時は■ｏＵＴはｏ ［Ｖ］となる。以上の様に、
任意温度を境いに−して超電導体の両端の電位差が生じ
たシ無くなったシする。この電位差の有無でスイッチン
グ動作とするものである。On the other hand, the resistor 7 hardly changes with temperature and has R [Ω]. Therefore, the current flowing through this circuit system is I [A]
Then, when the temperature is higher than the arbitrary temperature, the potential difference vOUT between both ends of the superconductor 2 is .Rx[v'3], and when the temperature is lower than the arbitrary temperature, the potential difference vOUT becomes o[V]. As above,
The potential difference between the two ends of the superconductor disappears after reaching an arbitrary temperature. Switching operation is performed depending on the presence or absence of this potential difference.
尚、常温付近で超電導を示す材料としては、５ｒＢａＹ
Ｃｕ３０７−δか知られている。製造に際しては、まず
原料粉末の粉砕・混合を行う。それを９２０°Ｃの空気
中で５時間焼成した後、粉砕し、Ａ−７
それを３回縁シ返す。その粉末を成形し、１０００°Ｃ
の空気中で５時間加熱して焼結し、炉中で冷却する。こ
のようにして作製された焼結体は、３３８Ｋ（６５°Ｃ
）で超電導を示す（ＪＡＰＡＮＥＳＥＪＯＵＲＮＡＬ
ＯＦ ＡＰＰＬＩＥＤ ＰＨＹＳＩＣＳ、ｖｏｌ。Note that 5rBaY is a material that exhibits superconductivity near room temperature.
Cu307-δ is known. During production, first the raw material powder is crushed and mixed. After baking it in air at 920°C for 5 hours, it is crushed and A-7 is edge-turned three times. The powder is molded and heated to 1000°C.
The material is sintered by heating in air for 5 hours, and then cooled in a furnace. The sintered body produced in this way was heated at 338K (65°C
) shows superconductivity (JAPANESE JOURNAL
OF APPLIED PHYSICS, vol.
２６ 、 Ａ８． Ａｕｇｕｓｔ、 １９８７． ＰＰ
１６７−１７１）。26, A8. August, 1987. PP
167-171).
発明の効果
本発明の超電導温度スイッチは、任意温度で完全伝導性
現象を示す超電導体の両端を２本の電線で接続し、この
超電導体を感温筒に絶縁収納した構成であるから、無接
点でしかも磁気相互干渉による影響のない温度スイッチ
を提供するものである。Effects of the Invention The superconducting temperature switch of the present invention has a structure in which both ends of a superconductor exhibiting a completely conductive phenomenon at any temperature are connected with two electric wires, and this superconductor is insulated and housed in a temperature-sensitive tube. The present invention provides a temperature switch which is a contact point and is not affected by mutual magnetic interference.
第１図は本発明の一実施例を示す超電導温度スイッチの
斜視図、第２図は同第１図の断面図、第３図は動作回路
図、第４図は従来の構成図である。
１ ・・・・超電導温度スイッチ、２・・・・・超電導
体、３・・・・・・電線、４・・・・・・感温筒、６・
・・・・・伝熱性絶縁材料。
／−一一超電導沼し蔓スイッチネ不ト
第１図FIG. 1 is a perspective view of a superconducting temperature switch showing an embodiment of the present invention, FIG. 2 is a sectional view of FIG. 1, FIG. 3 is an operating circuit diagram, and FIG. 4 is a conventional configuration diagram. 1...Superconducting temperature switch, 2...Superconductor, 3...Electric wire, 4...Temperature sensing cylinder, 6...
...Heat conductive insulating material. /-11 Superconducting Swamp Switch Nebuto Figure 1
Claims (1)
の電線で接続し、この超電導体を感温筒に伝熱性絶縁材
料を介して絶縁収納した超電導温度スイッチ。A superconducting temperature switch that connects both ends of a superconductor that exhibits a phenomenon of perfect conductivity at any temperature with two wires, and houses this superconductor insulated in a temperature-sensitive tube via a heat-conductive insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62309942A JPH01151123A (en) | 1987-12-08 | 1987-12-08 | Superconductive temperature switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62309942A JPH01151123A (en) | 1987-12-08 | 1987-12-08 | Superconductive temperature switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01151123A true JPH01151123A (en) | 1989-06-13 |
Family
ID=17999203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62309942A Pending JPH01151123A (en) | 1987-12-08 | 1987-12-08 | Superconductive temperature switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01151123A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0374024A (en) * | 1989-05-01 | 1991-03-28 | Mitsubishi Electric Corp | Circuit breaking element |
-
1987
- 1987-12-08 JP JP62309942A patent/JPH01151123A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0374024A (en) * | 1989-05-01 | 1991-03-28 | Mitsubishi Electric Corp | Circuit breaking element |
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