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21. 发明专利

JPH06224037A SUPERCONDUCTING COIL 失效
公开(公告)号：JPH06224037A
公开(公告)日：1994-08-12
申请号：JP1191793
申请日：1993-01-27
申请人： AISIN SEIKI
发明人： SAKAKIBARA TSUTOMU
IPC分类号： H01F6/00 , H01F6/02 , H01F7/22
摘要： PURPOSE:To inhibit the generation of a quench of superconductors as well as to ensure a large amount of current flowing through a superconducting coil. CONSTITUTION:A superconducting coil 10 is constituted by winding wire 12, which contain a superconductor 13 and copper 14, in such a way that it is wrapped on itself. Thereby, a current, which flows through the interiors of the coppers 14 at the time of a quench of the superconductors 1, is dispersed in the peripheries of the coppers and flows and at the same time, heat in the coppers 14 is dispersed in the peripheries of the coppers.

22. 发明专利

JPH0656810B2 失效
公开(公告)号：JPH0656810B2
公开(公告)日：1994-07-27
申请号：JP16660488
申请日：1988-07-04
IPC分类号： H01F6/00 , H01F7/22

23. 发明专利

JPH06208921A PROTECTOR FOR HIGH TEMPERATURE SUPERCONDUCTING CURRENT LEAD 失效
公开(公告)号：JPH06208921A
公开(公告)日：1994-07-26
申请号：JP308093
申请日：1993-01-12
申请人： TOSHIBA CORP
发明人： FUJIOKA TSUTOMU
IPC分类号： H01F6/00 , H01F7/22
摘要： PURPOSE:To provide a current lead protector for high temperature superconducting coil in which a burning can be prevented at the time of quenching without sacrifice of heat intrusion reducing effect due to use of high temperature superconducting member. CONSTITUTION:A main current lead 3 employing a high temperature superconducting member is connected in parallel with an auxiliary current lead 4 for commutation at the time of quenching in a cryostat 2 and the current leads 3, 4 are connected, respectively, through switches 5 with a discharge resistor 7 and an exciting power supply 8 on the outside of the cryostate 2.

24. 发明专利

JPH06204574A SUPERCONDUCTING EQUIPMENT 失效
公开(公告)号：JPH06204574A
公开(公告)日：1994-07-22
申请号：JP34792892
申请日：1992-12-28
申请人： HITACHI LTD , TOKAI RYOKAKU TETSUDO KK
发明人： SONOBE TADASHI , TAKIZAWA TERUHIRO , TERAI MOTOAKI , ASAHARA TETSUO , OISHI IKUO
IPC分类号： B60L13/04 , H01F6/00 , H01L39/04 , H01F7/22
摘要： PURPOSE:To prevent the increase in evaporation of a refrigerant and the appearance of quench of a permanent current switch by supporting a refrigerant box wherein the permanent current switch is stored by a vacuum chamber through a heat-insulating load supporting body for preventing vibration of the permanent current switch and the refrigerant box. CONSTITUTION:A refrigerant box 6 to store a permanent current switch 5 in a refrigerant is located apart from a refrigerant bath 2 to store a superconducting coil 1 in a refrigerant so that mechanical vibration of the refrigerant bath 2 may not work on the refrigerant box 6. The refrigerant bath 2 and the refrigerant box 6 are connected by bellows in vacuum and the refrigerant box 6 to store the permanent current switch 5 is supported by a vacuum chamber 4, using a load supporting body 11. By this structure, the refrigerant box 6 and permanent current switch 5 is independently supported by the heat-insulating load supporting body 11. Therefore, the refrigerant box 6 is not influenced by vibration of the refrigerant bath 2 and so the vibration of the refrigerant box 6 can be considerably reduced.

25. 发明专利

JPH06188466A SUPERCONDUCTOR MAGNET COOLING SYSTEM 失效
公开(公告)号：JPH06188466A
公开(公告)日：1994-07-08
申请号：JP33708792
申请日：1992-12-17
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： SHIBATA TOSHIKAZU
IPC分类号： F25B9/00 , F25B9/06 , F25B9/14 , H01F6/04 , H01L39/04 , H01F7/22
摘要： PURPOSE:To reduce the size of a cooling system for a super-conducting magnet and enhance the efficiency of thermal conductivity and prevent the shutdown of a refrigerator motor by magnetic shielding. CONSTITUTION:A superconducting coil 1 is installed in a vessel 2 for a vacuum insulation layer. A refrigerator 5 is brought nearto and mounted by way of a thermal good conductor 3 and a cold storage material 4 and formed so that the cold heat of a cold accumulator may be conducted to a coil directly. A motor 6 is magnetically shielded with a ferromagnetic body 11.

26. 发明专利

JPH0648646B2 失效
公开(公告)号：JPH0648646B2
公开(公告)日：1994-06-22
申请号：JP14377185
申请日：1985-06-29
IPC分类号： H01F6/04 , H01F6/00 , H01F6/06 , H01L39/04 , H01F5/08 , H01F7/22

27. 发明专利

JPH06168820A POWER SUPPLY FOR NUCLEAR FUSION DEVICE 失效
公开(公告)号：JPH06168820A
公开(公告)日：1994-06-14
申请号：JP32020492
申请日：1992-11-30
申请人： HITACHI LTD , HITACHI ENG SERVICE
发明人： KUBO MORIHIRO , ISHIGAKI YUKIO
IPC分类号： G21B1/21 , G21B1/00 , H01F6/00 , H02J1/00 , H02M9/00 , H03K17/296 , H01F7/22
摘要： PURPOSE:To provide a power supply for a nuclear fusion device wherein quasi permanent current mode can be formed at a fast speed, a fixed magnetic field can be maintained and a large current direct current does not require to be interrupted for releasing of the quasi permanent current mode. CONSTITUTION:A control device 8 detects a current flowing to a thyristor switch 2 by a current detector 12, thereby controls operation of a mechanical switch 1, the thyristor switch 2 and an ac to dc converter 7 connected to a superconductive coil 3 in parallel and turns ON/OFF the tyristor switch 2 before opening/closing operation of the mechanical switch 1. Therefore, opening/closing operation which is necessary for formation and release of quasi permanent current mode is carried out first by the thyristor switch 2, and thereafter, it shifts to opening/closing operation of the mechanical switch 1. Therefore, rapid formation of quasi permanent current mode becomes possible independent of delay of closing characteristic of the mechanical switch 1. Furthermore, since a commutation device is not required for releasing of quasi permanent current mode, cost reduction is realized.

28. 发明专利

JPH06163253A CRYOGENIC EQUIPMENT 失效
公开(公告)号：JPH06163253A
公开(公告)日：1994-06-10
申请号：JP31374892
申请日：1992-11-24
申请人： AQUEOUS RES KK
发明人： ARIGA HIDEKI , ITO YOSHIHISA , HORI KOJI
IPC分类号： B60L13/10 , F25D3/10 , H01F6/04 , H01L39/04 , H01F7/22
摘要： PURPOSE:To prevent a helium case from exploding, by letting the helium gas escape when the pressure in the helium case excessively increases. CONSTITUTION:This equipment is provided with the following; a helium case 45 constituting a liquid helium vessel 50 wherein liquid helium is accommodated in a sealed space, and a superconducting magnet and a permanent current switch are dipped in the liquid helium, and a vacuum case 31 constituting a vacuum vessel 42 which surrounds the helium case 45, forms a sealed space, and vacuumizes the space. The helium case 45 is provided with a safety valve which is opened when the pressure in the helium case 45 reaches a previously set value, and lets the pressure escape into the vacum case 31. When the quenching is generated or heat in the atmosphere permeates into the liquid helium vessel 50, the liquid helium is vaporized and the pressure in the helium case 45 abnormally increases. Since the pressure is let escape into the vacuum case 31, the helium case 45 does not explode.

29. 实用新型

JPH0638208U 失效
公开(公告)号：JPH0638208U
公开(公告)日：1994-05-20
申请号：JP7375392
申请日：1992-10-22
IPC分类号： H01F6/00 , H01F7/22

30. 发明专利

JPH06140243A CURRENT LEAD USING OXIDE SUPERCONDUCTING MATERIAL 失效
公开(公告)号：JPH06140243A
公开(公告)日：1994-05-20
申请号：JP29104492
申请日：1992-10-29
申请人： FUJI ELECTRIC CO LTD
发明人： TAKITA KIYOSHI
IPC分类号： H01F6/00 , H01F6/02 , H01F7/22
摘要： PURPOSE:To prevent burning of oxide superconducting material by a method wherein the temperature rise caused by the abnormality in the oxide superconducting material and the increase in electric resistance are detected in early stage, and a power source is cut off. CONSTITUTION:The current lead is composed of a high temperature side lead 2 with a current lead, made of good conductive metal, with which the exciting current sent from an external power source is applied to the superconducting coil 10 which is housed in a vacuum heat insulating container and maintained at a cryogenic temperature, a low-temperature side lead 5 consisting of oxide superconducting material, and a material which is series-connected to the intermediate connection fitting 6, to be connected to the intermediate connection fitting 6, to be used to connect both of the above-mentioned leads, and cooled by low temperature refrigerant gas GHe. The abnormal conduction and the abnormal temperature of the low temperature side lead 5 are detected by a potentional difference detector 21 and a temperature detector 23, and abnormality protecting device 20, which instructs the breaking of a circuit breaker 13, is provided on a judgement part 24.

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