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1. 发明专利

JPS62109303A SUPERCONDUCTING ELECTROMAGNET DEVICE 失效
公开(公告)号：JPS62109303A
公开(公告)日：1987-05-20
申请号：JP24876485
申请日：1985-11-08
申请人： TOSHIBA CORP
发明人： MURAI SHIGERU
IPC分类号： G01R33/381 , A61B5/055 , A61B10/00 , G01R33/20 , H01F6/06
摘要： PURPOSE:To enhance the uniformity of a uniform magnetic field space by provid ing a portion in which a winding pitch is rough in case of winding a superconducting conductor in a solenoid. CONSTITUTION:Superconducting conductors 9 are divided to five types such as first, second, third, fourth and fifth coils 3, 4, 5, 6 and 7, and sequentially wound in a solenoid state from the bore side near a cylindrical bobbin 1. An interlayer space 10 made, for example, of glass cloth is laid between the layers. When the winding pitch of the conductors 9 is increased larger than one conductor and roughly wound, the conductors are wound while holding a spacer 11 between windings between conductors 9 and 9. The spacer 11 employs an insulated metal wire. The conductors 9 can use one continuous conductor for each coil without altering its sectional shape to prevent an electric resistance from generating or an irregular magnetic field from generating due to the connection of the conductor 9 on the way.

2. 发明专利

JPH05235422A 失效
公开(公告)号：JPH05235422A
公开(公告)日：1993-09-10
申请号：JP3172992
申请日：1992-02-19
申请人： TOSHIBA CORP
发明人： MURAI SHIGERU
IPC分类号： H01H33/00 , H01H37/58 , H01H50/00 , H01L39/20
摘要： PURPOSE:To match performance of ON-OFF control to an accuracy necessary for an operation of a superconducting electromagnet by providing a superconducting wire extended out of a bobbin together with a coil made of the superconducting wire and a heater in the bobbin. CONSTITUTION:The thermal permanent current switch comprises a coil 1 of a non-inductive winding of a superconducting wire integrated with a matrix of high resistances, a heater 2 for heating the coil to perform its normal conduction transition, a bobbin 3 for containing the coil 1 and the heater 2 in a shape for surrounding them in a semi-heat insulating manner, and a heat conductive wire 4 formed by insulating a fine wire or foil of a high purity aluminum conductor, then shaping to wind it and then integrally impregnating it with resin. Both ends of the coil 1 are removed out of a thermal permanent current switch through the bobbin 3 as leads 5, connected to both ends of a superconducting electromagnet and connected to an external power source. Both ends of the heater 2 are also fixed to a heater terminal 6 through the bobbin 3, and connected to the power source. Further, the wire 4 is externally removed through the bobbin 3, a size (A) of a heat dissipating unit 7 is decided in the state, and it is fixed.

3. 发明专利

JPH03279096A ELECTROMAGNETIC PROPULSION DEVICE 失效
公开(公告)号：JPH03279096A
公开(公告)日：1991-12-10
申请号：JP7712090
申请日：1990-03-28
申请人： SHIP & OCEAN ZAIDAN , TOSHIBA CORP
发明人： SASAGAWA RYOICHI , MURAI SHIGERU
IPC分类号： B63H19/00
摘要： PURPOSE:To prevent the damage of a duct and the lowering of efficiency by forming an insulating coating layer at the inner wall surface of a metal duct forming a passage for a conductive fluid so as to prevent the leakage of a current flowing through the duct inner wall. CONSTITUTION:A metal duct 11 is to be a passage for a conductive fluid 12, and an insulating coating layer 13 is adhered to the inner wall surface of the duct 11. Inside the duct 11, a pair of positive and negative electrodes of the fixed length in the passage direction are opposedly provided in the orthogonal direction to the passage direction. At the peripheral part of the duct 11, a pair of saddle type superconductive coils 16 are disposed and excited by direct current power source from outside so as to generate a magnetic field in the orthogonal direction to the passage direction. At the peripheral parts of the coils 16, an outer cylinder 17 is disposed in a concentric circle with the duct 1 so as to form a vacuum container by the inner and outer cylinders 11, 17, and the coils 16 are cooled into the superconductive state by a cooling medium. With this constitution, a current flowing between a pair of electrodes 14 is prevented from flowing onto the duct 11 side to prevent the electrolytic corrosion of the wall surface inside the duct 11 caused by current leakage and thereby improve propulsion efficiency.

4. 发明专利

JPS6213010A SUPERCONDUCTIVE ELECTROMAGNET 失效
公开(公告)号：JPS6213010A
公开(公告)日：1987-01-21
申请号：JP15138685
申请日：1985-07-11
申请人： TOSHIBA CORP
发明人： SASAKI KATSUTOKI , DOBASHI TAKAHIRO , MURAI SHIGERU
IPC分类号： H01F6/04 , H01L39/04
摘要： PURPOSE:To improve cooling from the bore side of a coil of a bobbin by forming at least a portion of the bobbin near a metal thermal conductive member in a laminated structure of an electrically insulating sheet and a copper foil in an integral construction. CONSTITUTION:A bobbin 1 is formed by superposing and winding a semicurable fiber-reinforced plastic sheet 1a and a copper foil 1b on the entire or part of the outer peripheral side of the bobbin 1, and integrally molding by thermal curing. Coolant such as liquid helium is supplied into a cooling tube 5 to transfer heat through a supporting plate 8 and a soaking plate 3 are designated by arrows to cool conductors 2 and the bobbin 1. Thus, the bobbin 1 is cooled from outer and inner peripheral sides to reduce the temperature difference in the entire coil, thereby shortening the cooling time and reducing the thermal stress.

5. 发明专利

JP2000348925A MANUFACTURE OF FORCED COOLING SUPERCONDUCTING COIL 失效
公开(公告)号：JP2000348925A
公开(公告)日：2000-12-15
申请号：JP16089999
申请日：1999-06-08
申请人： TOSHIBA CORP
发明人： MURAI SHIGERU
IPC分类号： H01F6/06
摘要： PROBLEM TO BE SOLVED: To contrive to make it possible to obtain a forced cooling superconducting coil in good quality and with good production efficiency, by a method wherein a winding machine mounted with the spool of the superconducting coil is installed on the back end of a pipe forming and molding process to execute a winding on the superconducting coil. SOLUTION: A superconductor (superconducting stranded conductor cable) 1 and a stainless strip plate coil material 2 are sent in a pipe-forming part 3 in parallel to each other, the coil material 2 is molded in an egg-shaped sectional form in such a way that the cable 1 is wrapped in the coil material 2 in the part 3 and a vertical position welding of the stainless strip plate coil material 2 is performed in a welding part 4. Subsequently, the coil material 2 is molded in a rectangular section in a molding part 5 and moreover, an automatic cleaning is performed on the coil material 2 in a cleaning part 6. Then after an inspection of the welded part of the coil material 2 and the dimension of the coil material 2 and the like are intermittently performed by an inspection unit 7, an insulation of the strand of the conductor is performed using an insulating unit 8. Then the conductor wound with an insulating tape is numerically controlled and is executed a winding in a required coil form, by a bender 9 for molding a coil for molding the conductor in the required coil form.

6. 发明专利

JPH1092627A SUPERCONDUCTING ELECTRIC POWER STORAGE SYSTEM 失效
公开(公告)号：JPH1092627A
公开(公告)日：1998-04-10
申请号：JP24786696
申请日：1996-09-19
申请人： TOSHIBA CORP
发明人： MURAI SHIGERU
IPC分类号： H01F6/00 , H02J15/00
摘要： PROBLEM TO BE SOLVED: To effectively utilize total energy by compensating the low refrigerating efficiency of a super conducting coil. SOLUTION: A super conducting electric power storage system stores electric energy as the stored energy of a superconducting coil 2 through a power converter 8 and inputs and outputs the stored energy as electric energy. The system is constituted so that the coil 2 can be cooled directly or indirectly by the evaporation latent heat of a liquefied natural gas when the coil 2 is operated.

7. 发明专利

JPH0645133A THERMAL PERSISTENT CURRENT SWITCH 失效
公开(公告)号：JPH0645133A
公开(公告)日：1994-02-18
申请号：JP19838692
申请日：1992-07-24
申请人： TOSHIBA CORP , SHOWA ELECTRIC WIRE & CABLE CO
发明人： MURAI SHIGERU , MAEDA HIDEAKI , UCHIYAMA TAKESHI
IPC分类号： H01F6/06 , H01F6/00 , H01H33/00 , H01F5/08 , H01F7/22
摘要： PURPOSE:To stabilize the conduction performance of a superconducting coils used for the title persistent current switch thereby facilitating the operation of a super-conductive electromagnet. CONSTITUTION:The space between the windings of non-inductively wound up super conducting coils 1 as well as the space between the coils 1 and the bobbins 3 semi-adiabatically containing the heaters 2 heating the coils 1 if necessary are partly or totally restricted by impregnating the coils 1 and the bobbins 3 with grease 8 so that the mechanical disturbabce due to the deformation of the bobbins 3 may be minimized to avoid the quenching of the superconductive coils 1 thereby enabling the conduction performance to be stabilized.

8. 发明专利

JPH01246798A CORRECTION COIL 失效
公开(公告)号：JPH01246798A
公开(公告)日：1989-10-02
申请号：JP7329688
申请日：1988-03-29
申请人： TOSHIBA CORP
发明人： MURAI SHIGERU
IPC分类号： H05H7/04
摘要： PURPOSE:To accomplish a correcting coil with wire range of application by using an oxide type superconductor to a superconductive member to be placed parallely with the straight portion of a main electric magnet coil. CONSTITUTION:A correcting coil 3 is formed by arranging a plurality of oxide type superconductors in the form of thin band in parallel with the straight portion of a main electric magnet coil and by shortcircuiting them at their ends parallelly. The oxide type superconductor has a high transfer temp. to normal conductivity, and the cool keeping structure of the correcting coil 3 can be simplified, and because transfer to normal conductivity is made when the magnetic field due to the main electric magnet coil is larger than a certain value, it has a correcting effect in the form of hysteresis, and using it to correction of a normal conductive magnet or a superconductive magnet of warm bore type should produces a highly accurate magnetic field in the effective space with in a beam pipe.

9. 发明专利

JPS62283609A GAS COOLED CURRENT SUPPLYING LEAD 失效
公开(公告)号：JPS62283609A
公开(公告)日：1987-12-09
申请号：JP12640186
申请日：1986-05-31
申请人： TOSHIBA CORP
发明人： MURAI SHIGERU
IPC分类号： H01F6/00 , H01L39/02
摘要： PURPOSE:To simplify the construction of a gas cooled current supplying lead and to reduce the size of the lead by constructing to discharge evaporated cryogenic refrigerant through an air gap between an outer tube and an inner tube in which a lower end is mounted in a cryogenic refrigerant vessel and the inside of the inner tube from a hole for discharging cryogenic refrigerant evaporating gas into the atmosphere to reduce heat invasion amount to the vessel without increasing the length of the lead. CONSTITUTION:An inner tube 2 made of GFRP having small thermal conductivity is disposed through a predetermined air gap inside an outer tube 1 mounted by welding or the like on a cryogenic refrigerant vessel, a plurality of holes 2b for discharging liquid helium evaporating gas are provided along circumferential direction at the upper end, a plurality of current supplying conductors 3 are so wound spirally along the tube 2 as to be longer than the tube 2, a lead terminal 4 is connected, and a current flows to the superconducting coil of a superconducting magnet. The evaporated liquid helium is discharged from the holes 2b through the inside of the tube 2 into the atmosphere to cool the conductors 3.

10. 发明专利

JPS61271804A SUPERCONDUCTIVE ELECTROMAGNET 失效
公开(公告)号：JPS61271804A
公开(公告)日：1986-12-02
申请号：JP11208085
申请日：1985-05-27
申请人： TOSHIBA CORP
发明人： SASAKI KATSUTOKI , MURAI SHIGERU
IPC分类号： H01F6/00 , H01F6/06 , H01F7/22
摘要： PURPOSE:To provide a superconductive electromagnet which can operate stably and can cool the coil well, by arraying a supporting plate made of thermal conductive material conjunct with a thermal conductive member, on an end face of the coil in which superconductive conductor having insulating coatings is wound around a bobbin through the thermal conductive member, and by providing a cooling conduit for circulating liquid helium, with being closely contacted to the supporting plate. CONSTITUTION:The superconductive magnet is comprised of a coil in which superconductive conductor 2 having insulating coatings is wound on a bobbin 1 through a thermal conductive member 7, a supporting plate 8 made of thermal conductive material conjunct with the thermal conductive member 7 arrayed on the coil end face, and a cooling conduit 5 for circulating liquid helium being closely contacted to the supporting plate 8. In this way, cooling the coil preliminarily, or cooling the heat resulted from friction, etc. or alternating type loss caused in the coil conductor during operating the electromagnet, may be attained from both of the inner side and outer side of the coil as shown by the arrows, so that the temperature gradient in the coil is difficult to develop. Accordingly, the cooling can be done well when preliminarily cooling the coil, and the time necessary for the cooling and the amount to be used of liquid helium can be reduced. Moreover, in the operation, the better superconductive characteristics can be attained and the stability of the operation can be increased.

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