CN103618043A - Superconduction switch for superconduction coil - Google Patents
Superconduction switch for superconduction coil Download PDFInfo
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- CN103618043A CN103618043A CN201310671778.0A CN201310671778A CN103618043A CN 103618043 A CN103618043 A CN 103618043A CN 201310671778 A CN201310671778 A CN 201310671778A CN 103618043 A CN103618043 A CN 103618043A
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- superconduction
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- switch
- coil
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- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000006664 bond formation reaction Methods 0.000 claims 1
- 230000005284 excitation Effects 0.000 abstract description 12
- 239000000725 suspension Substances 0.000 abstract description 4
- 239000002887 superconductor Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
Abstract
The invention discloses a superconduction switch for a superconduction coil. The superconduction switch is characterized in that a resistance wire (4) which is connected with a heating power supply (5) is wound on a heat-conduction cylinder (2); a superconduction section (1) penetrates through the cylinder (2), and two ends, stretching out of the cylinder (2), of the superconduction section (1) are respectively connected with two leading-out ends of the superconduction coil (6); two leading-out ends of the superconduction coil (6) are also connected with a power supply (7) respectively through a power supply wire (7a). The superconduction switch is used for powering the superconduction coil, and after the superconduction coil is powered for one time, a magnetometer can obtain a high and stable noiseless magnetic field for a relatively long time; after the superconduction coil is powered by the superconduction switch for one time, the stable excitation current of an excitation system can be maintained for a long time, so that a car-mounted power supply which needs to continuously power the excitation system in the linear superconduction driving can be canceled, the weight of a suspension vehicle body can be reduced, and the system running efficiency can be improved.
Description
Technical field
The present invention relates to a kind of superconducting switch for superconducting coil.
Background technology
The superconducting switch that is applied at present superconducting coil is all low-temperature superconducting switch.Its structure and principle are heater to be connected with a bit of of superconductor, then to connect with superconducting coil; When heater is opened, the temperature of the superconductor section of the part that is connected with heater rises to it more than critical temperature, and electric current just no longer can flow through easily, realizes the "off" of switch; When heater cuts out, electric current can flow through the superconductor section of non-resistance (superconducting state), realizes " closure " of switch.Because heater and the superconductor Duan Jun of superconducting switch seals in the branch road of superconducting coil, when superconducting switch is closed (superconductor section is superconducting state), the electric current that flows through superconducting coil all can flow through superconductor section and the heater sealing at every turn, and decay to some extent.For magnetometer (as MRI/NMR), this means that the current duration in its superconducting coil reduces, its magnetic field also can be with certain velocity attenuation, and the magnetic field time of the strong magnetometer of stable maintenance is short; For the linear suspended drive system of superconduction, for maintaining continual exciting current, need to have vehicle power to the continual power supply of excitation system superconducting coil, with the electric current of compensate for attenuation at any time, vehicle power has increased suspension car body volume and weight, lowers its operational efficiency.In wind-driven generator, also need to have power supply by brushless excitation system the excitation system continued power to wind-driven generator, there is rotating contact link, reduced reliability and the useful life of motor.
Summary of the invention
Object of the present invention is exactly the superconducting switch that is designed for superconducting coil, adopts this kind of superconducting switch to power to superconducting coil, once powers and just can make magnetometer obtain the height of long period and stable noiseless magnetic field; Once power supply can make the excitation system long period maintain stable exciting current, thereby take down in superconduction linear drives, needs the constant vehicle power to excitation system power supply, alleviates the weight of suspension car body, improves the operational efficiency of system.
It is that a kind of superconducting switch for superconducting coil, is characterized in that the present invention realizes the technical scheme that its goal of the invention adopts: the resistance wire being connected with heating power supply is wrapped on the cylinder of heat conduction; Superconducting section passes cylindrical two ends through cylinder and superconducting section and is connected with two exits of superconducting coil respectively; Two exits of superconducting coil are also connected with power supply by power line.
The course of work of the present invention and principle are:
Superconducting coil, cylinder and superconducting section are placed in to refrigerating environment, and superconducting coil, superconducting section are in superconducting state.Open again heating power supply, current flowing resistance silk, resistance wire heating, heat passes to superconducting section by the cylinder of heat conduction, makes superconducting section transfer resistive state to by superconducting state.
Connect subsequently the power supply to superconducting coil power supply, this power supply is communicated with superconducting coil, superconducting section by power line simultaneously.Because superconducting section is now resistive, and superconducting coil is in superconducting state, therefore, in the closed-loop path that electric current only forms at power supply, power line and superconducting coil, circulates, and reaches capacity to the electric current of superconducting coil.This process can be considered power supply to superconducting coil " charging ".
" charging " completes after (electric current of superconducting coil reaches capacity), closes heating power supply, and cylinder and superconducting section cooling subsequently, to superconducting section recovery superconducting state.Now, the resistance of superconducting section is much smaller than the resistance of the power line of the routine (non-superconducting) being connected between power supply and superconducting coil, " be filled with " electric current in superconducting coil and transfer in the superconduction closed-loop path that superconducting coil and superconducting section form and circulating, and no longer with power line, power supply circulation.Because the superconducting coil in this superconduction closed-loop path and superconducting section can integrated prefabricatedly form, the two welding joint, sealing in without resistive components and parts more, the resistance of whole superconduction closed-loop path is almost nil, deenergization now, electric current in superconduction closed-loop path will exist, almost forever maintain, and this continuous current in superconducting coil will produce a lasting magnetic field.
Current attenuation in superconducting coil, after critical value, can repeat above operation, realizes " charging " again of superconducting coil.
Compared with prior art, the invention has the beneficial effects as follows:
One, cleverly by the temperature of resistance wire power supply control superconducting section, thereby realized cut-offfing of the superconducting section in parallel with superconducting coil, when superconducting section disconnects, by power supply, superconducting coil has been carried out to " charging ".The resistance in the superconducting coil loop of superconducting section closed (superconducting section recovery superconducting state) " being filled with electric current " is almost nil subsequently, electric current sustainable existence for a comparatively long period of time, can access height and stablize, magnetic field and noiseless that attenuation pole is slow, obviously improve strong magnetometer service time after " charging " once.
Two, this superconducting switch is applied to the excitation superconducting coil in superconduction linear drive system, and once, after " charging ", exciting current is sustainable existence within considerable time, without giving its continued power.Thereby can take off the vehicle power of constantly powering to excitation system, reduce the volume and weight of suspension car body, improve the operational efficiency of system.
Three, this superconducting switch is applied in wind-driven generator, can replace the brushless excitation system to the excitation system continued power of wind-driven generator, removes and contacts without spin link, and the reliability of motor and useful life are improved.
Above-mentioned cylinder is made by high thermal conductivity materials such as copper, synthetic sapphires.Like this, the operate time fast, switch of conducting heat is shorter, also more power saving, energy-conservation.
Above-mentioned cylinder consists of with first cylinder is bonding second cylinder, and has groove on the diametral plane of second cylinder, and superconducting section is placed in described groove.
Like this, both facilitate the manufacture of superconducting switch, and made again superconducting wire avoid extruding and damage, improved its reliability and life-span.
Above-mentioned superconducting section is used multistage hts tape to compose in parallel.
Like this, can make " charging " time shorter, efficiency is higher.
Above-mentioned resistance wire consists of many resistance wire parallel connections.
Like this, can increase the heat energy that is transferred to superconducting section, further improve heat transfer efficiency.
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the mechanical structure schematic diagram of the barrel portion of the embodiment of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the circuit theory diagrams of the embodiment of the present invention.
Embodiment
Embodiment
Fig. 1-3 illustrate, a kind of embodiment of the present invention is, it is that a kind of superconducting switch for superconducting coil, is characterized in that the present invention realizes the technical scheme that its goal of the invention adopts: the resistance wire 4 being connected with heating power supply 5 is wrapped on the cylinder 2 of heat conduction; The two ends that superconducting section 1 passes cylinder 2 through cylinder 2 and superconducting section 1 are connected with two exits of superconducting coil 6 respectively; Two exits of superconducting coil 6 are also connected with power supply 7 by power line 7a.
This routine cylinder 2 is made by high thermal conductivity materials such as copper, synthetic sapphires.
This routine cylinder 2 consists of with first cylinder 2b is bonding second cylinder 2a, and has groove 2c on the diametral plane of second cylinder 2a, and superconducting section 1 is placed in described groove 2c.
This routine superconducting section 1 is used multistage hts tape to compose in parallel.
This routine resistance wire 4 consists of many resistance wire parallel connections.
Claims (5)
1. for a superconducting switch for superconducting coil, it is characterized in that: the resistance wire (4) being connected with heating power supply (5) is wrapped on the cylinder (2) of heat conduction; The two ends that superconducting section (1) passes cylinder (2) through cylinder (2) and superconducting section (1) are connected with two exits of superconducting coil (6) respectively; Two exits of superconducting coil (6) are also connected with power supply (7) by power line (7a).
2. a kind of superconducting switch for superconducting coil according to claim 1, is characterized in that: described cylinder (2) is made by high thermal conductivity materials such as copper, synthetic sapphires.
3. a kind of superconducting switch for superconducting coil according to claim 1, it is characterized in that: described cylinder (2) is by second cylinder (2a) and the bonding formation of first cylinder (2b), and on the diametral plane of second cylinder (2a), have groove (2c), superconducting section (1) is placed in described groove (2c).
4. a kind of superconducting switch for superconducting coil according to claim 1, is characterized in that: described superconducting section (1) is used multistage hts tape to compose in parallel.
5. a kind of superconducting switch for superconducting coil according to claim 1, is characterized in that: described resistance wire (4) consists of many resistance wire parallel connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310671778.0A CN103618043A (en) | 2012-12-12 | 2013-12-11 | Superconduction switch for superconduction coil |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210533377 | 2012-12-12 | ||
| CN201210533377.4 | 2012-12-12 | ||
| CN201310671778.0A CN103618043A (en) | 2012-12-12 | 2013-12-11 | Superconduction switch for superconduction coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103618043A true CN103618043A (en) | 2014-03-05 |
Family
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310671778.0A Pending CN103618043A (en) | 2012-12-12 | 2013-12-11 | Superconduction switch for superconduction coil |
| CN201320813264.XU Expired - Fee Related CN203760516U (en) | 2012-12-12 | 2013-12-11 | Superconducting switch for superconducting coil |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320813264.XU Expired - Fee Related CN203760516U (en) | 2012-12-12 | 2013-12-11 | Superconducting switch for superconducting coil |
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| Country | Link |
|---|---|
| CN (2) | CN103618043A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104579280A (en) * | 2014-11-18 | 2015-04-29 | 中国科学院电工研究所 | Superconductive switch for conducting cooling superconductive magnet |
| CN105655223A (en) * | 2015-12-28 | 2016-06-08 | 上海集成电路研发中心有限公司 | Magnetic field generating device of plasma etching system |
| CN106876573A (en) * | 2017-03-23 | 2017-06-20 | 西南交通大学 | A kind of double sided superconducting film switch |
| CN109217492A (en) * | 2018-09-29 | 2019-01-15 | 西南交通大学 | A kind of superconducting magnet contactless power supply device |
| CN109378251A (en) * | 2018-09-17 | 2019-02-22 | 中国科学院合肥物质科学研究院 | Explosion switch for Superconducting tokamak nuclear fusion experimental power supply for magnet coils system |
| CN113037259A (en) * | 2021-03-01 | 2021-06-25 | 上海超导科技股份有限公司 | Structure, control method and system of distributed high-temperature superconducting application system |
| CN113380490A (en) * | 2021-05-07 | 2021-09-10 | 中国科学院合肥物质科学研究院 | Superconducting switch for superconducting magnet system of superconducting maglev train |
| WO2024161430A1 (en) * | 2023-02-03 | 2024-08-08 | Zealogics Technologies Pvt. Ltd. | A zero noise magnetic field system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618043A (en) * | 2012-12-12 | 2014-03-05 | 西南交通大学 | Superconduction switch for superconduction coil |
| RU2602767C1 (en) * | 2015-08-04 | 2016-11-20 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский политехнический университет" | Superconducting fast switch |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1027928A (en) * | 1996-07-09 | 1998-01-27 | Sumitomo Electric Ind Ltd | Superconductive coil with permanent current switch and its manufacturing method |
| JPH10135026A (en) * | 1996-11-01 | 1998-05-22 | Kobe Steel Ltd | Thermal control type persistent current switch |
| CN1433091A (en) * | 2002-01-15 | 2003-07-30 | 西门子公司 | Superconductive breaker |
| JP2004296974A (en) * | 2003-03-28 | 2004-10-21 | Toshiba Corp | Permanent current switch |
| CN1757122A (en) * | 2003-03-06 | 2006-04-05 | 东海旅客铁道株式会社 | Superconducting magnet |
| US20070194870A1 (en) * | 2006-02-20 | 2007-08-23 | Hitachi, Ltd. | Permanent current switch |
| CN203760516U (en) * | 2012-12-12 | 2014-08-06 | 西南交通大学 | Superconducting switch for superconducting coil |
-
2013
- 2013-12-11 CN CN201310671778.0A patent/CN103618043A/en active Pending
- 2013-12-11 CN CN201320813264.XU patent/CN203760516U/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1027928A (en) * | 1996-07-09 | 1998-01-27 | Sumitomo Electric Ind Ltd | Superconductive coil with permanent current switch and its manufacturing method |
| JPH10135026A (en) * | 1996-11-01 | 1998-05-22 | Kobe Steel Ltd | Thermal control type persistent current switch |
| CN1433091A (en) * | 2002-01-15 | 2003-07-30 | 西门子公司 | Superconductive breaker |
| CN1757122A (en) * | 2003-03-06 | 2006-04-05 | 东海旅客铁道株式会社 | Superconducting magnet |
| JP2004296974A (en) * | 2003-03-28 | 2004-10-21 | Toshiba Corp | Permanent current switch |
| US20070194870A1 (en) * | 2006-02-20 | 2007-08-23 | Hitachi, Ltd. | Permanent current switch |
| CN203760516U (en) * | 2012-12-12 | 2014-08-06 | 西南交通大学 | Superconducting switch for superconducting coil |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104579280A (en) * | 2014-11-18 | 2015-04-29 | 中国科学院电工研究所 | Superconductive switch for conducting cooling superconductive magnet |
| CN105655223A (en) * | 2015-12-28 | 2016-06-08 | 上海集成电路研发中心有限公司 | Magnetic field generating device of plasma etching system |
| CN106876573A (en) * | 2017-03-23 | 2017-06-20 | 西南交通大学 | A kind of double sided superconducting film switch |
| CN109378251A (en) * | 2018-09-17 | 2019-02-22 | 中国科学院合肥物质科学研究院 | Explosion switch for Superconducting tokamak nuclear fusion experimental power supply for magnet coils system |
| CN109378251B (en) * | 2018-09-17 | 2020-04-24 | 中国科学院合肥物质科学研究院 | Explosion switch for full-superconducting Tokamak nuclear fusion experiment magnet power supply system |
| CN109217492A (en) * | 2018-09-29 | 2019-01-15 | 西南交通大学 | A kind of superconducting magnet contactless power supply device |
| CN113037259A (en) * | 2021-03-01 | 2021-06-25 | 上海超导科技股份有限公司 | Structure, control method and system of distributed high-temperature superconducting application system |
| CN113380490A (en) * | 2021-05-07 | 2021-09-10 | 中国科学院合肥物质科学研究院 | Superconducting switch for superconducting magnet system of superconducting maglev train |
| WO2024161430A1 (en) * | 2023-02-03 | 2024-08-08 | Zealogics Technologies Pvt. Ltd. | A zero noise magnetic field system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN203760516U (en) | 2014-08-06 |
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Application publication date: 20140305 |