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1. 发明专利

JPH0528883A STRUCTURE OF HIGH SPEED SUPERCONDUCTIVE SWITCH 失效
公开(公告)号：JPH0528883A
公开(公告)日：1993-02-05
申请号：JP17997491
申请日：1991-07-19
申请人： JAPAN ATOMIC ENERGY RES INST , FUJI ELECTRIC CO LTD
发明人： TSUNEOKA MASAKI , YOSHIDA KIYOSHI , HIGAMI HISAAKI , YASUKAWA YUKIO , KUMAGAI TAKEO
IPC分类号： H01H33/59
摘要： PURPOSE:To accomplish a permanent current switch at high speed and with low heat emission, suppress heat intrusion of refrigerant He and evaporation associate therewith, and control the operation time easily with the peak value of the input power. CONSTITUTION:A thermal type permanent current switch 3 is composed of a superconductive wire 3a and a heater wire 3b. When the current in the superconductive wire 3a is to be shut off, first a large power is applied to the heater wire 3b to quickly transfer a superconductive coil 1 from the superconductive state into normal conductive state, and then the power to the heater wire 3b is reduced so as to apply the min. power for keeping the normal conductive state.

2. 发明专利

JP2002043014A CONDUCTIVE CONNECTING METHOD BY MUTUAL FASTENING OF ELECTRICAL GOOD CONDUCTORS 失效
公开(公告)号：JP2002043014A
公开(公告)日：2002-02-08
申请号：JP2000231147
申请日：2000-07-31
申请人： JAPAN ATOMIC ENERGY RES INST , FUJI ELECTRIC CO LTD
发明人： TAKAHASHI YOSHIKAZU , SUGIMOTO MAKOTO , TSUJI HIROSHI , NOZAWA MASANOBU , YASUKAWA YUKIO , KONNO MASAYUKI , ITO IKUO
IPC分类号： H01R4/58 , H01R4/68 , H01R13/03 , H01R43/00
摘要： PROBLEM TO BE SOLVED: To provide a conductive connecting method by fastening electrical good conductors, capable of reducing the electrical contact resistance in a conductive connecting part, and to provide a superconducting device, capable of reducing the evaporation of a liquid helium refrigerant, which in turn reducing the operation cost. SOLUTION: An electrical good conductive soft metal wire 1 is inserted between opposite conductive connecting faces of the electrical good conductors 2, and is collapsed by predetermined pressure between the conductive connecting faces, and then the electrical good conductors 2 are fastened and fixed to each other. As the electrical good conductive soft metal wire 1, indium wire or silver wire is used.

3. 发明专利

JPH11260162A SUPERCONDUCTING CURRENT LEAD 失效
公开(公告)号：JPH11260162A
公开(公告)日：1999-09-24
申请号：JP6514698
申请日：1998-03-16
申请人： JAPAN ATOMIC ENERGY RES INST , FUJI ELECTRIC CO LTD
发明人： ANDO TOSHINARI , TSUJI HIROSHI , ISONO TAKAAKI , HAMADA KAZUYA , YASUKAWA YUKIO , NOZAWA MASANOBU
IPC分类号： H01F6/06 , H01B12/02 , H01B12/06 , H01B12/12 , H01F6/00
摘要： PROBLEM TO BE SOLVED: To prevent lowering of the critical current and to make a superconducting current lead compact by mounting a plurality of unit conductors comprising the tape-shaped oxide superconducting wires on a cylindrical support member such that the tape faces of the superconducting wires are located in parallel with the peripheral direction in a cylinder coordinate system. SOLUTION: The grooves having the bottom faces chamfered in flat along the positions where the unit conductors 1 are mounted, are formed on a side face of a cylindrical support member 4 corresponding to the flat unit conductors 1, and the unit conductors 1 are mounted on the bottom faces of the grooves. The conductor units 1 mounted on the grooves are fixed to the support member by a binding tape wound on the periphery of the unit conductors 1. The magnetic material pieces 3 mounted among a plurality of unit conductors 1 are mounted on the cylindrical curved portions remained among a plurality of grooves formed on the side face of the support member 4 by an adhesive. Whereby the vertical self-magnetic field component of the tape face is guided into the magnetic material pieces 3 to inhibit the lowering of the critical current value.

4. 发明专利

JPH10188691A SUPERCONDUCTIVE CURRENT LEAD 失效
公开(公告)号：JPH10188691A
公开(公告)日：1998-07-21
申请号：JP35007896
申请日：1996-12-27
申请人： JAPAN ATOMIC ENERGY RES INST , FUJI ELECTRIC CO LTD , SUMITOMO ELECTRIC INDUSTRIES
发明人： ANDO TOSHINARI , TSUJI HIROSHI , ISONO TAKAAKI , YASUKAWA YUKIO , SAKAKI KIYOSHI , KONNO MASAYUKI , KATO TAKESHI , HAYASHI KAZUHIKO
IPC分类号： H01F6/00 , H01B12/06
摘要： PROBLEM TO BE SOLVED: To prevent the reduction of a critical current and make a superconductive current lead compact by arranging multiple units of a single tape-like oxide superconductive wire or a layered product on a cylindrical support member made of a low-heat conductivity material while the tape faces are made parallel with the peripheral direction of a cylindrical coordinate system. SOLUTION: Tape-like superconductive wire units 1 made of a sheath material of silver or a silver alloy at the silver cross sectional ratio of about 2-3 are fixed to an oxide superconductive while the tape faces are made parallel with the peripheral direction around a cylindrical support member 3. The main component of the self- magnetic field caused by the self-current is made parallel with the tape face, the vertical component is reduced, the reduction of a critical current value due to the self-magnetic field is decreased, and the self-magnetic field is not disturbed. The heat contraction coefficient of the material of the support member 3 when a current lead is cooled to the prescribed temperature from the room temperature is preferably set to -0.4% through -0.15% between the heat contraction coefficients of silver and superconductor. The essential strain of the superconductive wire is kept in the compressive direction, and the deterioration of the critical current value caused by thermal strain is prevented.

5. 发明专利

JP2003279184A Pulse tube refrigerator 审中-公开
标题翻译：脉冲制冷机
公开(公告)号：JP2003279184A
公开(公告)日：2003-10-02
申请号：JP2002082347
申请日：2002-03-25
申请人： Fuji Electric Co Ltd , 富士電機株式会社
发明人： KAMOSHITA TOMOYOSHI , YASUKAWA YUKIO
IPC分类号： F25B9/00
CPC分类号： F25B9/145 , F25B2309/1407 , F25B2309/1413 , F25B2309/1414 , F25B2309/1415 , F25B2309/1423
摘要： PROBLEM TO BE SOLVED: To provide a pulse tube refrigerator capable of providing stable refrigerating output even if installation attitude is changed.
SOLUTION: In the pulse tube refrigerator connecting a connection pipe 11a connected to a compressor not indicated here, a heating part 12, a heat accumulating part 13, a cooling part 14, a pulse tube 15, and a heat radiation part 16 in order to integrate the same, and connecting an inertance tube 17 and a buffer tank 18 to the pulse tube 15 via the heat radiation part 16, ratio of an inner section area of the pulse tube 15 and an inner section area of the heat accumulating part 13 is kept at least 0.1 and at most 0.35.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供即使安装姿态改变也能够提供稳定的制冷输出的脉冲管制冷器。解决方案：在连接在这里未示出的压缩机的连接管11a的脉冲管制冷器中，加热部12，蓄热部13，冷却部14，脉冲管15以及散热部16 为了将其积分，并且经由散热部16将惯性管17和缓冲罐18连接到脉冲管15，脉冲管15的内部区域的面积和蓄热的内部区域的比率部分13保持在0.1以上0.35以下。版权所有（C）2004，JPO

6. 发明专利

JP2002206479A COMPRESSOR 审中-公开
公开(公告)号：JP2002206479A
公开(公告)日：2002-07-26
申请号：JP2001254116
申请日：2001-08-24
申请人： FUJI ELECTRIC CO LTD
发明人： TOYAMA KENTARO , YASUKAWA YUKIO , OSHIMA KEIJI
IPC分类号： F04B35/04
摘要： PROBLEM TO BE SOLVED: To simplify the structure of a vibration compressor for making it compact and improvement of the accuracy of assembling. SOLUTION: A yoke for transmitting magnetic flux of a permanent magnet 13 forming a linear drive unit 9 with a vibrator coil 11, and a cylinder and a pressure container body 26 are integrally formed with each other as a body block 28. A piston 3, which is to be inserted into the cylinder 1, is supported in a cantilever manner by two pairs of support springs 7 and 8 at an end opposite to an operating gas compression space 5, and the linear drive part 9 is arranged in parallel, in the radial direction of the piston. As compared to the structure of the linear drive part 9 being arranged in series in the axial direction of the piston, the longitudinal dimension of the piston part is reduced, and since a plurality of parts are arranged collectively in the body block 28, the number of parts items is reduced to improve the assembling accuracy.

7. 发明专利

JPH08321416A CURRENT LEAD FOR SUPERCONDUCTING DEVICE 失效
公开(公告)号：JPH08321416A
公开(公告)日：1996-12-03
申请号：JP7112095
申请日：1995-03-29
申请人： FUJI ELECTRIC CO LTD
发明人： BONO TAKAAKI , KONNO MASAYUKI , SAKAKI KIYOSHI , TAKITA KIYOSHI , YASUKAWA YUKIO , ITO IKUO
IPC分类号： H01L39/04 , H01B12/02 , H01F6/00
摘要： PURPOSE: To prevent burning of a high temperature oxide superconductor due to abnormal temperature rise in current application by providing a protective conductor electrically connected to a low temperature side lead in parallel. CONSTITUTION: A protective conductor 15 formed of metal material such as stainless steel, etc., is provided by electrically connecting to a low temperature side lead 12 in parallel. The protective conductor 15 is formed into a cylinder, and helium gas of low temperature is introduced into the inside of the protective conductor 15 through a communication channel provided to a low temperature terminal 32, and then made to flow to the high temperature side lead 13 through a communication channel provided to an intermediate connection part 14, so that a high temperature oxide superconductor constituting the low temperature side lead 12 and the protective conductor 15 are effectively cooled. Further, the protective conductor 15 consists of a series-connection-body wherein good- conduction metal made of copper, or copper alloy is provided on its both end parts, acting as electrical connection parts, and low-temperature-conduction metal made of stainless steel is assigned on the central part, for joint.

8. 发明专利

JPH04241403A MANUFACTURE OF SUPERCONDUCTIVE COIL 失效
公开(公告)号：JPH04241403A
公开(公告)日：1992-08-28
申请号：JP291891
申请日：1991-01-16
申请人： FUJI ELECTRIC CO LTD
发明人： YASUKAWA YUKIO , KUMAGAI TAKEO , KONNO MASAYUKI
IPC分类号： H01F6/06 , H05H7/04
摘要： PURPOSE:To obtain a superconductive coil excellent in training property by improving the resin impregnation method into the coil lined up and wound in lace truck shape and the heating hardening method. CONSTITUTION:It is lined up and wound in lace truck shape while applying thermosetting resin on a superconductive wire, and also the heating hardening treatment of thermosetting resin is performed while adding external compressing load in the direction of compressing the sectional area of a coil, using a pressing jig. Moreover, external compressing load is added from the two directions between the turns of the coil and between the layers. Furthermore, for a superconductive lead wire, a square wire, where vertical and horizontal dimensions are equal, is used.

9. 发明专利

JP2003166766A HEAT EXCHANGER FOR PULSE PIPE REFRIGERATOR 审中-公开
公开(公告)号：JP2003166766A
公开(公告)日：2003-06-13
申请号：JP2001364730
申请日：2001-11-29
申请人： FUJI ELECTRIC CO LTD
发明人： ITOYAMA TAKEHIDE , YASUKAWA YUKIO , TSUKAHARA YUJI
IPC分类号： F25B9/00
摘要： PROBLEM TO BE SOLVED: To improve heat exchange performance by suppressing channelling of working gas flowing through a heat exchanger and suppression of the increase of a pressure loss and reduce the occurrence of a thermal loss, in a heat exchanger provided with a pulse pipe refrigerator. SOLUTION: In a pulse pipe refrigerator comprising a compressor, a cool storage apparatus, a pulse pipe, a phase control part, the two ends of the cool storage apparatus, and heat exchangers on the high temperature side and the low temperature side located between the pulse pipe and the phase control part, and each of the heat exchangers where its housing is charged with a heat exchange member consisting of a metal mesh heat-exchanging with working gas, in the first heat exchanger 5 on the high temperature side located between a connection pipe 1a of the compressor and the high temperature end of the cool storage apparatus 2, a straightening member 5c consisting of a metal mesh 5c-1 or a metal sintered body 5c-2 and having voids selected to a value lower than that of a heat exchange member is located between the opening end of the connection pipe 1 and the heat exchange member in a state that the straightening member and the heat exchange member with which the housing 5a is charged are overlapped with each other, such that working gas evenly flows to the heat exchange material, and the area of its effective heat transfer is increased to improve heat exchange performance. COPYRIGHT: (C)2003,JPO

10. 发明专利

JP2003139426A PULSE TUBE TYPE REFRIGERATOR 审中-公开
公开(公告)号：JP2003139426A
公开(公告)日：2003-05-14
申请号：JP2001339174
申请日：2001-11-05
申请人： FUJI ELECTRIC CO LTD
发明人： KAMOSHITA TOMOYOSHI , YASUKAWA YUKIO
IPC分类号： F25B9/00
摘要： PROBLEM TO BE SOLVED: To provide a pulse tube type refrigerator using a Stirling cycle that can ensure refrigeration efficiency higher than a conventional level. SOLUTION: The pulse tube type refrigerator 10 comprises a compressor for repeatedly feeding and suctioning working gas, a cold storage unit 13 connected to the compressor via a radiation part 12 and internally filled with a cold storage medium, a pulse tube 15 connected to the cold storage unit via a cooling part 14, and a buffer tank 18 connected to the pulse tube via a radiation part 16 and an inertance tube 17. A ratio of the space volume of the pulse tube 15 to the space volume of the cold storage unit 13 is set at 0.75 to 1.5. In another mode, with the diameter of a circle of an area equal to an inside sectional area of the cold storage unit 13 taken as an inside diameter, a value of the division of the length of the cold storage unit 13 by the square of the inside diameter is set at 0.11 to 0.26.

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