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1. 发明专利

JP2001176722A WINDING METHOD OF HEAT-TREATED SUPERCONDUCTOR 失效
公开(公告)号：JP2001176722A
公开(公告)日：2001-06-29
申请号：JP35889299
申请日：1999-12-17
申请人： MITSUBISHI ELECTRIC CORP , JAPAN ATOMIC ENERGY RES INST
发明人： HASEGAWA MITSURU , MINATO TSUNEAKI , TSUDA YOSHIYUKI , ANDO TOSHINARI , MATSUI KUNIHIRO , ISONO TAKAAKI , TSUJI HIROSHI
IPC分类号： H01F41/06 , H01B12/00 , H01F6/06
摘要： PROBLEM TO BE SOLVED: To provide a winding method of a superconductor which has been heat-treated, where bending strain is controlled without having to move a drum for conductor supply. SOLUTION: In this winding method of a superconductor which has been heat-treated, the superconductor is wound with a drum for conductor supply which can be rotated at a fixed position, led out from the drum while bending strain is restricted and disposed at a winding start position on a winding frame. As the winding work progresses, bending strain is estimated by analysis using a finite element method. On the basis of estimation, by rotating the drum at a constant position, the superconductor is wound while bending strain is adjusted, and a winding is formed. When bending strain is adjusted, the position of a conductor supplying port, the position of winding to the winding frame and a conductor length between the above positions are adjusted. The lee-out angle of the superconductor in the tangential line direction of the drum and an angle of the superconductor to a tangential line direction of the winding frame at the position of winding are adjusted.

2. 发明专利

JP2001118716A SUPERCONDUCTING DEVICE 失效
公开(公告)号：JP2001118716A
公开(公告)日：2001-04-27
申请号：JP29358099
申请日：1999-10-15
申请人： MITSUBISHI ELECTRIC CORP
发明人： TSUDA YOSHIYUKI
IPC分类号： H01F6/00 , H02J15/00
摘要： PROBLEM TO BE SOLVED: To obtain a superconducting device which can increase the output of a superconductive power storage system while reducing the manufacturing cost of the superconducting coil of the system. SOLUTION: A superconducting device is constituted by convergently arranging a plurality of short cylindrical superconducting solenoid coils 1aa, 1ab, 1ac, in each of which superconducting coils 1 are coaxially arranged in the longitudinal direction in a plurality of coaxial rows and electrically connecting the coils 1aa, 1ab, and 1ac in parallel with each other. In addition, the output of the superconducting device is increased without reducing the stored energy of the device by making currents evenly flow to each solenoid coil by making the self-inductance of the solenoid coils at axially both ends larger than those of the solenoid coils at their axially central parts.

3. 发明专利

JPH0497506A SUPERCONDUCTIVE ELECTROMAGNETIC COIL 失效
公开(公告)号：JPH0497506A
公开(公告)日：1992-03-30
申请号：JP21505390
申请日：1990-08-16
申请人： MITSUBISHI ELECTRIC CORP
发明人： TSUDA YOSHIYUKI
IPC分类号： H05H7/04 , H01F6/06
摘要： PURPOSE:To firmly fix the superconductive cables of the corner section of a saddle-like coil by inserting spacers in the spaces between superconductive cables and in the corners of the saddle-like coil. CONSTITUTION:In spaces 10 between turns of inner side superconductive cable 5 in corners 20, the spacer sheets 21 made of epoxy varnish impregnated and semi-hardened glass tape are inserted while winding round inner side super- conductive cable 5. Next, the wound up superconductive bipolar electromagnetic coil is heated to harden the epoxy varnish with which sheets 21 is impregnate, and in the hardening process a pressure is continuously applied to the epoxy varnish starting from the edge of corner 20 such that the molten epoxy varnish flows, changes shape, and fills spaces 10 until varnish hardening is completed. With this, the move of superconductive cable caused by an electromagnetic force generated when exciting the magnet can be suppressed and the cable can be easily held into the superconductive condition.

4. 发明专利

JPS62281408A QUENCH DETECTOR FOR SUPERCONDUCTING COIL 失效
公开(公告)号：JPS62281408A
公开(公告)日：1987-12-07
申请号：JP12351086
申请日：1986-05-30
申请人： MITSUBISHI ELECTRIC CORP
发明人： TSUDA YOSHIYUKI
IPC分类号： H01F6/02 , H02H7/00
摘要： PURPOSE:To enable the reliable quench detection at low cost by providing an outer tube of a voltage tap attaching part for quench detection with a box which is conductive and is arranged hermetically and unitarily with said outer tube in the middle of voltage taps so as to keep the inside and the outside of the outer tube completely hermetic. CONSTITUTION:In the point where a potential of a superconducting coil is to be detected, a part of an outer tube 11 of a superconducting wire 1a is removed and one end of an internal voltage tap 2a is attached to this superconducting wire 1a, while another end is attached to an inner wall of a box 14. After that, the box 14 and the outer tube 11 are assembled and welded into one body hermetically. Next, one end of an external voltage tap 2b is attached to an outer surface of the box 14 near the position where the internal voltage tap 2a has been attached. When the superconducting coil is quenched to produce a resistive voltage, a change of potential consequent or that voltage generation is detected by the inner voltage tap 2a and a detection signal is transmitted to the box 14. That signal is transmitted to the exernal voltage tap 2b connected with the box 14 and thus it is detected.

5. 发明专利

JPH10335711A PERMANENT ELECTRIC CURRENT SWITCH 失效
公开(公告)号：JPH10335711A
公开(公告)日：1998-12-18
申请号：JP14781597
申请日：1997-06-05
申请人： MITSUBISHI ELECTRIC CORP
发明人： OHARA AKINORI , TSUDA YOSHIYUKI
IPC分类号： H01L39/14
摘要： PROBLEM TO BE SOLVED: To make a continuous operation even it a quench occurs at a contact point made of super metallic member by an electrode being provided with a second contact point made of high purity metallic member having a lower resistance than a resistance of the super metallic member while the quench occurs. SOLUTION: Switching-on and opening operation of a movable electrode 1 is performed by a driving mechanism and a superconductive contact point (a first contact point) is formed by superconductive members 2 and 4 contacting each other caused by the movable electrode 1 and a fixed electrode 3. Then a second contact point is also formed by high purity metallic members 10 and 11 contacting each other. By the way if an electric current through the first contact point is over 600 (A), a quench occurs by a contact point resistance suddenly increasing. On the other hand the second resistance of the same high purity metal is constant without depending upon an electric current value. Therefore even if the quench occurs at the first contact point, electric current flows through the second contact point because a resistance of the second contact point becomes less and a continuous operation is possible.

6. 发明专利

JPH10106825A STRUCTURE FOR PROTECTING DRIFT CURRENT BETWEEN SINGLE WIRES IN SUPERCONDUCTING MAGNET 失效
公开(公告)号：JPH10106825A
公开(公告)日：1998-04-24
申请号：JP28029196
申请日：1996-10-01
申请人： YAMAGUCHI SAKUTARO , MITSUBISHI ELECTRIC CORP
发明人： YAMAGUCHI SAKUTARO , SASAKI TAKASHI , NAKAJIMA KUNIHIKO , HASEGAWA MITSURU , TSUDA YOSHIYUKI
IPC分类号： H01L39/06 , H01B12/02 , H01F6/00 , H01F6/06
摘要： PROBLEM TO BE SOLVED: To provide a structure capable of protecting superconductive drift current to such an extent that power loss in the resistor added for protection of drift current is of a negligible low level. SOLUTION: A resistor 24 is fixed to an unstranded wire 23 by soldering and so on and a resistor is added to an individual wire. A cold body 25 prepared on the opposite side of the junction of the resistor 24 makes it possible to reduce resistance variation of the resistor. The coil is surrounded by a heat shield to prevent the coil from receiving radiation emitted from the room temperature body 25 and heat generated from the wire is dissipated outside by means of cooling gas 28.

7. 发明专利

JPS62290014A COMPOUND-BASED SUPERCONDUCTOR 失效
公开(公告)号：JPS62290014A
公开(公告)日：1987-12-16
申请号：JP13176986
申请日：1986-06-09
申请人： MITSUBISHI ELECTRIC CORP
发明人： TSUDA YOSHIYUKI
IPC分类号： H01B12/02

8. 发明专利

JPS629606A SUPERCONDUCTIVE COIL 失效
公开(公告)号：JPS629606A
公开(公告)日：1987-01-17
申请号：JP15037185
申请日：1985-07-08
申请人： MITSUBISHI ELECTRIC CORP
发明人： TSUDA YOSHIYUKI
IPC分类号： H01F6/04 , H01F6/06
摘要： PURPOSE:To enable electric insulation to be accomplished without generation of a distortion which is detrimental to a superconductive wire as well as to manufacture the necessary cooling path on the title coil at low cost by a method wherein an insulat ed spacer is wound around a reinforcement substrate providing a vacant space, the vacant space is used as a cooling path, and they are used as a reinforcement material by performing an insulating treatment. CONSTITUTION:A Kapton tape, for example, which is very thin when compared with the thickness of the reinforcement base material 22, is half-wound on the surface of the reinforcement base material 22 made of stainless steel, for example, and the electric insulation between coil turns is conducted using an insulating material 23. Besides, a vacant space is provided on the surface, a Nomex tape and the like, for example, is spirally wound and an insulating spacer 24 is formed. A cooling path 25, where liquid helium passes, is formed between a superconductive wire 21 and a reinforcement material 26 using said insulated spacer 24. When the coil is wound as above-mentioned, the superconductive wire 21 can be wound around a coil bobbin 33 from a superconductive wire take-up drum without having a detrimental distortion, and at the same time, the reinforcement material 26 is wound around the coil bobbin 33 from a reinforcement material take-up drum 32 while the prescribed tention T is being applied.

9. 发明专利

JPS60133710A SUPER CONDUCTIVE WINDING 失效
公开(公告)号：JPS60133710A
公开(公告)日：1985-07-16
申请号：JP24089883
申请日：1983-12-22
申请人： MITSUBISHI ELECTRIC CORP
发明人： TSUDA YOSHIYUKI , ICHIHARA SUNAO
IPC分类号： H01F6/00 , G01R33/3815 , H01F7/22
摘要： PURPOSE:To generate highly accurate distribution of magnetic field by superposing pancake coils such that their transition between turns, deliveries and transition between the layers are placed on the same radius face. CONSTITUTION:A circular pancake coil 11 of the first layer and a circular pancake coil 12 of the second layer are superposed coaxially with their innermost turns 13 connected together. Near the delivery 16 of the coil 11 and the delivery 17 of the coil 12, arranged are a transition 14 between the first layer and the turn, a transition 15 between the second layer and the turn and a transition between the layers. Thus, the non-circular portions 14-17 and the transition 13 are provided on the same radius face. Closely as possible, so that error magnetic fields generated by the non-circular portions 14-17 and the transition 13 along with the flow of electric current are mutually offset. Accordingly, the portions S1 and S2 where error magnetic fields are generated are small, and a superconductive winding with highly accurate distribution of magnetic field can be obtained.

10. 发明专利

JP2001015821A SUPERCONDUCTING APPARATUS 失效
公开(公告)号：JP2001015821A
公开(公告)日：2001-01-19
申请号：JP18175499
申请日：1999-06-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： OHARA AKINORI , TSUDA YOSHIYUKI
IPC分类号： H01F6/00 , H01L39/14
摘要： PROBLEM TO BE SOLVED: To prevent resistance variations among fixed resistors by preparing the fixed resistors while segmenting a block member into as many point- symmetrical, rod-shaped structures as the number of mechanical permanent current switches, connecting current supply leads to the symmetrical points of the fixed resistors, and connecting the current leads for connection with the current switches to the rod-shaped structure ends of the fixed resistors. SOLUTION: This superconducting apparatus is provided with a current supply point 9 and current branching ends 10 to 12 of fixed resistors 16 to 18. The resistors 16 to 18 each are made from a high-purity metallic member such as copper which exhibits low electrical resistance. These resistors 16 to 18 are prepared by segmenting a block member into as many point-symmetrical, rod-shaped structures as the number of mechanical permanent current switches 3 to 5, connecting current supply leads to their symmetrical points, and connecting the current leads for connection with the switches 3 to 5 to their rod-shaped structure ends, respectively. Further, in the circuitry including the switches 3 to 5, the resistances of series-connected fixed resistors are adjusted to substantially equal values ranging from 10-9 to 10-7 Ω so that current flows into the respective switches uniformly.

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