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1. 发明专利

JPH0476492A MANUFACTURE OF HELICAL COIL CONTAINER 失效
公开(公告)号：JPH0476492A
公开(公告)日：1992-03-11
申请号：JP19158690
申请日：1990-07-17
申请人： MITSUBISHI ATOMIC POWER IND , MITSUBISHI ELECTRIC CORP
发明人： YAMADA MASAO , SASAKI TAKASHI , MINATO TSUNEAKI , ICHIHARA SUNAO , TOYODA KATSUYOSHI , IKEDA BUNKOU , TADO SHIGERU
IPC分类号： G21B1/11 , G21B1/00 , G21B1/25
摘要： PURPOSE:To form easily a helical coil container with high accuracy by forming a fitting structure and key structure worked with desired accuracy in a connection of the coil container divided into a plurality of parts in the winding direction. CONSTITUTION:In a connection part of a helical coil container 14 divided into a plurality of parts in the winding direction, there are provided a fitting 12 structure and a key 11 structure formed with desired accuracy in a helical groove of a discharge tube. After the key 11 is inserted and connected by bolts 13, the connection is formed by being covered with a sealing film 15 from the inside of the container 14. Thus, the container 14 spaced from the discharge tube can be easily obtained with high accuracy. Also, a coil is wound around the container groove and a lid 16 of the container 14 is mounted with bolts 17 having a seal cap 18. Then, when the contact surfaces of the container 14 and lid 16 are seal welded 19 in the winding direction, stable plasma enclosure is provided and a helical coil holding air-tightness is obtained. Further, when another seal structure 20 is provided outside the container 14, only repair spots can be repaired from the outside after assembling of the coil without disassembly.

2. 发明专利

JPH08138927A SUPERCONDUCTIVE COIL QUENCH DETECTING DEVICE 失效
公开(公告)号：JPH08138927A
公开(公告)日：1996-05-31
申请号：JP26965994
申请日：1994-11-02
申请人： KANSAI ELECTRIC POWER CO , MITSUBISHI ELECTRIC CORP
发明人： KOIKE TATSURO , IZUMI TORU , KISHIDA TAKUYA , TOYODA KATSUYOSHI , MINATO TSUNEAKI , HARADA NAOYUKI , ICHIHARA SUNAO
IPC分类号： H01F6/02
摘要： PURPOSE: To obtain a superconductive coil quench detecting device which is less affected by magnetic noises so as to accurately detect a very low voltage induced with quench of a superconductive coil. CONSTITUTION: When a quench occurs in a superconductive coil 2 inside a vacuum thermally insulated vessel 3, a voltage is generated in the superconductive coil 2, but no voltage is generated in pickup coils 4a and 4b provided adjacent to the superconductive coil 2, a quench detector 5 judges that a quench occurs in the superconductive coil 2 basing on a voltage generated in the coil 2, a power supply 1 is shut off by a circuit breaker 9, and a protective resistor introducing switch 10 is turned on so as to make a discharge take place through a protective resistor 11. If magnetic noises are introduced from outside, a voltage generated in the superconductive coil 2 is canceled out with a voltage generated by the pickup coils 4a and 4b, so that a quench detector 5 is not actuated and protected against the effect of magnetic noises.

3. 发明专利

JPH0696629A COMPOSITE SUPERCONDUCTIVE AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH0696629A
公开(公告)日：1994-04-08
申请号：JP24193092
申请日：1992-09-10
申请人： MITSUBISHI ELECTRIC CORP
发明人： ICHIHARA SUNAO
IPC分类号： H01B12/16 , H01F6/06 , H01F5/08
摘要： PURPOSE:To prevent deterioration of a mechanical property while preventing deterioration of superconductivity due to thermal strain. CONSTITUTION:For example, Nb3Sn is used for a superconductor. A first portion 11a made of titanium, having a thermal contraction coefficient near that of a wire bundle 11 and a second portion 11b made of austenitic stainless steel which is easy to be joined to a refrigerant terminal tube are joined to each other in the conductor length direction, thus constituting a conduit 11.

4. 发明专利

JPH04576B2 失效
公开(公告)号：JPH04576B2
公开(公告)日：1992-01-08
申请号：JP2399186
申请日：1986-02-07
申请人： MITSUBISHI ELECTRIC CORP
发明人： ICHIHARA SUNAO
IPC分类号： H01L39/04 , F17C3/10 , H01F6/00

5. 发明专利

JPH03269292A MANUFACTURING OF VESSEL FOR HELICAL COIL 失效
公开(公告)号：JPH03269292A
公开(公告)日：1991-11-29
申请号：JP6735490
申请日：1990-03-19
申请人： MITSUBISHI ELECTRIC CORP
发明人： SASAKI TAKASHI , MINATO TSUNEAKI , ICHIHARA SUNAO , TOYODA KATSUYOSHI , IKEDA BUNKOU
IPC分类号： G21B1/11 , G21B1/00
摘要： PURPOSE:To improve workability substantially and, improve mechanical strength, too, by forming a sealing part and a key structure for keeping gas tightness, at connection parts between each of plurality of coil vessels which are divided along in winding directions of coil wires. CONSTITUTION:A sealing part for keeping gas tightness and a key structure which is processed with a desired accuracy are formed at a connection part plurally divided along in a wire winding direction, and are placed in a helical groove of discharging tube. Then, after effecting penetration bead welding for a butt sealing part 12, the key structure 11 which has the desired accuracy and an appropriate strength is inserted. Subsequently, by fastening a coil vessel 14 by bolts 13, a helical coil vessel separated spatially from the discharging tube can be easily and highly accurately manufactured.

6. 发明专利

JPS6392006A VOLTAGE DETECTOR OF SUPERCONDUCTING APPARATUS 失效
公开(公告)号：JPS6392006A
公开(公告)日：1988-04-22
申请号：JP23711886
申请日：1986-10-07
申请人： MITSUBISHI ELECTRIC CORP
发明人： ICHIHARA SUNAO
IPC分类号： H01B12/08 , H01F6/02
摘要： PURPOSE:To make it possible to detect an accurate voltage which does not include contact resistance between strands or between stranded wires in the lower order and connection resistance in normal conduction, by attaching voltage taps to the same superconducting strand or to the stranded wire in the lower order, which forms an electrically unitary body. CONSTITUTION:Superconducting strands or lower-order stranded wires 21, which are formed by stranding the superconducting strands and soldering them so as to form an electrically unitary body, are electrically insulated or made to remain as bare wires. Said conducting strands or the lower-order stranded wires 21 are stranded to constitute superconducting cable 22. Voltage taps 2 are attached to the same superconducting strand or the lower-order stranded wire, e.g., 21a. Thus the objective voltage can be correctly measured without the effect of the electrical resistance between the superconducting strands or between the lower-order stranded wires.

7. 发明专利

JPS62264611A METHOD OF WINDING ELECTROMAGNET COIL 失效
公开(公告)号：JPS62264611A
公开(公告)日：1987-11-17
申请号：JP10758086
申请日：1986-05-13
申请人： MITSUBISHI ELECTRIC CORP
发明人： ICHIHARA SUNAO , SATO TAKASHI
IPC分类号： H01F41/06
摘要： PURPOSE:To wind an electromagnet coil with a required winding radius steadily by a method wherein a conductor is wound on a local winding pattern which has a smaller radius of curvature than the required winding radius by the amount of conductor spring-back. CONSTITUTION:A conductor 1 is paid off from a reel and wound on a bobbin 2. The radius of a local winding pattern 3 provided at the part where the winding of the conductor 1 starts is made smaller than the required radius of curvature after winding by the amount same as or smaller than the amount of spring- back of the conductor 1. As the conductor 1 is bent to have the radius smaller than the required radius at the time of winding on the bobbin 2 like this, after the local winding pattern 3 and a local bending pattern 4 are removed, the coil tends to have the exactly required winding radius or a natural radius which is a little smaller than the required winding radius by elastic returning deformation and is pressed against the bobbin by the winding tension and settled with the required winding radius.

8. 发明专利

JPS62183503A VERY LOW TEMPERATURE CONTAINER 失效
公开(公告)号：JPS62183503A
公开(公告)日：1987-08-11
申请号：JP2399186
申请日：1986-02-07
申请人： MITSUBISHI ELECTRIC CORP
发明人： ICHIHARA SUNAO
IPC分类号： H01L39/04 , F17C3/10 , H01F6/00
摘要： PURPOSE:To reduce eddy current and electromagnetic force generated by fast supply of power to a superconductive coil or stop of supply of power by forming the main part of the liquid nitrogen irradiation shield with high electric resistance material. CONSTITUTION:The liquid nitrogen irradiation shield 3 which has been formed with a copper material based on the prior art is formed by a high electric resistance material. Therefore an eddy current flows into a metal material in the periphery of the superconductive coil 1. If a square metal material is formed by the austenite system stainless steel SUS 304, since an electric resistivity of SUS 304 at the liquid nitrogen temperature is remarkably larger than that of copper in such a degree about 50-300 times, an eddy current flowing into SUS304 becomes smaller in accordance with said ratio than that of copper. Thereby, a force to be applied or stress generated at the supporting structure 8 of the liquid nitrogen irradiation shield 3 and superconductive coil becomes very weak, assuring safety from the view point of structure.

9. 发明专利

JPS60146159A MEASUREMENT OF NUMBER OF DISCONNECTED FILAMENTS IN VERY FINE MULTICORE CONDUCTOR 失效
公开(公告)号：JPS60146159A
公开(公告)日：1985-08-01
申请号：JP203884
申请日：1984-01-11
申请人： MITSUBISHI ELECTRIC CORP
发明人： TODA SUSUMU , ICHIHARA SUNAO
IPC分类号： G01R31/02
摘要： PURPOSE:To measure the number of disconnected filaments handily and accurately with a high reproducibility by dissolving the base material between both the ends of a very fine multicore conductor to measure electric resistance between two ends of the filament exposed. CONSTITUTION:A base material of a superconductive wire 1 is dissolved in a dissolving liquid leaving both ends 7 thereof 1. A constant current source 5 for feeding a very weak current and a voltometer 6 are connected in parallel between both the ends 7 of the wire 1. Filaments 2 have an electrical resistance value larger by about two digit than pure copper as component material of the base material at the normal temperature. For that reason, when the constant current source 5 is mounted to the wire 1, the voltage between both ends 7 of the wire 1 due to current flowing from the constant current source 5 is undoubtedly attributed to the resistance of the filaments 2. The resistance per one filament 2 is measured or calculated beforehand. Then, a characteristic curve of the voltage V between both ends 7 of the wire 1 is drawn corresponding to the number N of disconnected ones of the filaments 2. Thus, the number of disconnected ones of the filaments 2 composing the wire 1 can be measured simply.

10. 发明专利

JPS604203A COIL 失效
公开(公告)号：JPS604203A
公开(公告)日：1985-01-10
申请号：JP11305983
申请日：1983-06-21
申请人： MITSUBISHI ELECTRIC CORP
发明人： OSADA DAIZABUROU , KUNO KAZUO , ICHIHARA SUNAO , FUKUMOTO SHINTAROU
IPC分类号： H01F5/00 , G21B1/11 , H01F7/20
摘要： PURPOSE:To reduce a stress displacement caused by a turning-over impact by a method wherein a coil holding frame is separated at the neighborhood part where turning-over prevention beams are provided and an interlocking structure is applied to the connection of the separating parts. CONSTITUTION:A toroidal coil 1 with a layer insulation and a ground insulation is inserted into coil holding frames 30a, 30b and wedges 35 are driven between the toroidal coil 1 and a groove 34 of the coil holding frame 30b to connect the toroidal coil 1 and the coil holding frame 30b tightly. Convex parts 31 and concave parts 32 of the coil holding frames 30a and 30b are mated together and coupled and fixed tightly by bolts 33. A cover frame 22 is welded and the whole structure is completed. Because the separating parts of the coil holding frames 30a, 30b are used as turning-over prevention beam parts and the coil holding frames 30a, 30b are strengthened by the interlocking structure of the convex and concave parts, a rigidity of the separating connection parts is significantly increased and a stress displacement caused by the turning-over impact is reduced.

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