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公开(公告)号：US20240038427A1
公开(公告)日：2024-02-01
申请号：US18258727
申请日：2021-10-11
发明人： Masatoshi YOSHIKAWA , Yasuyuki MIYOSHI , Mamoru HAMADA , Kazuyoshi SAITO , Yoshinori YANAGISAWA , Renzhong PIAO , Kotaro OHKI , Takashi YAMAGUCHI , Tatsuoki NAGAISHI
IPC分类号： H01F6/06
CPC分类号： H01F6/06
摘要： A superconducting coil device according to one embodiment of the present invention includes: A superconducting coil device including: a bobbin having a tubular body; superconducting wires, a part of which constitutes a wound portion where the superconducting wires are wound on the bobbin; a bobbin-side guide portion holding the superconducting wires extending from the bobbin, the bobbin-side guide portion being provided to extend in a bobbin axial direction, which is an axial direction of the body of the bobbin; a first guide portion holding the superconducting wires extending from the bobbin-side guide portion, the first guide portion being arranged on an outer side of the bobbin-side guide portion in a direction intersecting the bobbin axial direction and provided to extend in the direction intersecting the bobbin axial direction; and a second guide portion capable of holding the superconducting wires extending from the first guide portion, the second guide portion being provided to extend in a direction intersecting the direction of extension of the first guide portion, in which the superconducting wires are constituted of a plurality of wires connected in series, and a connection portion between the wires is fixed to at least either one of the first guide portion and the second guide portion.
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公开(公告)号：US10097067B2
公开(公告)日：2018-10-09
申请号：US15061178
申请日：2016-03-04
发明人： Kenichi Inoue , Kazuyoshi Saitou , Kyoji Zaitsu , Koji Inoue , Satoshi Ito
摘要： Liquefier includes first compression section which is driven by a superconducting motor and which compresses a substance in a gaseous state. Cooling circuit includes: second compression section which is driven by the motor when first compression section is being driven by the motor and which compresses a refrigerant; first heat exchange section which cools the refrigerant by causing heat exchange between a substance in a tank and the compressed refrigerant; second expansion section which brings the refrigerant down to or below a critical temperature of a superconducting material by expanding the cooled refrigerant; and second heat exchange section which imparts cold heat of the refrigerant to the substance by causing heat exchange between the substance in the tank and the refrigerant after cooling a superconducting magnet, and supplies the refrigerant brought down to or below the critical temperature by second expansion section to the motor and cools the superconducting magnet.
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公开(公告)号：US10002697B2
公开(公告)日：2018-06-19
申请号：US15466989
申请日：2017-03-23
发明人： Atsuko Oka
摘要： A superconducting magnet device includes a superconducting coil, a radiation shield, a refrigeration unit, a vacuum case, an electrode member, and a conductive member. The vacuum case includes a case body housing the superconducting coil and a surrounding cover that surrounds the refrigeration unit. The conductive member includes a contact portion having a sleeve-shaped outer circumferential face and thermally contactable with an inner face of the surrounding cover via an insulating material. The surrounding cover includes a heat radiating part including at least a surface of a portion of the surrounding cover overlapping the contact portion in a radial direction of the surrounding cover. Thermal conductivity of the heat radiating part is higher than thermal conductivity of stainless steel.
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公开(公告)号：US20180144852A1
公开(公告)日：2018-05-24
申请号：US15794560
申请日：2017-10-26
发明人： Satoshi ITO
摘要： Provided is a superconducting coil pre-cooling method for cooling a superconducting coil in a superconducting magnet apparatus including: the superconducting coil; a helium tank; a radiation shield; a vacuum case; and a refrigerator including a first cooling stage and a second cooling stage, a passage being disposed between the refrigerator and the radiation shield. The method includes: a supplying step of supplying a working medium in a gaseous state having a condensation point lower than a condensation point of nitrogen into a refrigerator surrounding tube; a cooling step of cooling the superconducting coil in a tank body by the working medium in the gaseous state that is cooled in the first cooling stage and further cooled in the second cooling stage after passing through the passage; and a discharging step of discharging the working medium that has cooled the superconducting coil in the tank body, out of the vacuum case.
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公开(公告)号：US09966173B2
公开(公告)日：2018-05-08
申请号：US15466999
申请日：2017-03-23
发明人： Atsuko Oka
摘要： A superconducting magnet device includes a superconducting coil, a radiation shield, a vacuum case, an electrode member, and a conductive member. The conductive member includes an oxidized lead disposed in the radiation shield. The vacuum case includes a case body having an outer opening and an outer lid that is detachably attachable to the case body. The radiation shield includes a shield body having an inner opening and an inner lid that is detachably attachable to the shield body. The inner opening is formed in the region of the shield body that overlaps a portion of the outer opening when viewed in the direction from the outer opening to the oxidized lead.
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公开(公告)号：US20160131726A1
公开(公告)日：2016-05-12
申请号：US14897418
申请日：2014-06-10
IPC分类号： G01R33/3815 , G01R33/3875
摘要： A magnetic field generation apparatus includes a main coil and a variable-current correction coil. The main coil is formed by winding a ReBCO-based superconductive wire rod and generates a magnetic field in a measurement space. The variable-current correction coil is variable in a value of a current, coaxial with the main coil and disposed inside the main coil, and generates a magnetic field which corrects a uniformity of the magnetic field generated by the main coil.
摘要翻译： 磁场产生装置包括主线圈和可变电流校正线圈。 主线圈通过缠绕基于ReBCO的超导线材形成，并在测量空间中产生磁场。 可变电流校正线圈以与主线圈同轴并设置在主线圈内的电流值可变，并且产生校正由主线圈产生的磁场的均匀性的磁场。
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公开(公告)号：US20140235451A1
公开(公告)日：2014-08-21
申请号：US14201561
申请日：2014-03-07
IPC分类号： H02H7/00
CPC分类号： H02H7/001 , G01R33/3815 , H01F6/02 , H02H9/023 , Y02E40/68 , Y10S505/85 , Y10S505/872
摘要： An object of the present invention is to provide a method for protecting a superconducting coil, which method prevents damage to the superconducting coil caused by a quench or the like, in a new way, without using a voltage (a change in voltage) generated in the superconducting coil. Provided is the method for protecting a superconducting coil made by winding tape-like superconducting wire having a superconducting layer. Power from a power supply is shut off based on the magnitude of a screening field, which is a difference between a measured magnetic field B in a direction of a thickness of the superconducting wire at a predetermined position, and a magnetic field Bcal in the direction of the thickness of the superconducting wire calculated disregarding an effect of screening current.
摘要翻译： 本发明的目的是提供一种用于保护超导线圈的方法，该方法以新的方式防止由淬火等引起的对超导线圈的损坏，而不使用在其中产生的电压（电压变化） 超导线圈。 提供了用于保护由具有超导层的带状超导线缠绕制成的超导线圈的方法。 基于屏蔽场的大小来切断来自电源的电力，该屏蔽场的大小是在预定位置处超导线的厚度方向上的测量磁场B与在预定位置处的超导线的厚度方向上的磁场Bcal之间的差 超导线的厚度计算不考虑筛选电流的影响。
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公开(公告)号：US20220344564A1
公开(公告)日：2022-10-27
申请号：US17760788
申请日：2020-08-31
摘要： A persistent current switch includes a superconducting wire including a substrate and a superconducting layer disposed on the substrate, and a heater. The superconducting wire includes a surface including a first portion and a second portion that are disposed apart from each other along a longitudinal direction of the superconducting wire. The first portion and the second portion face each other. The heater is sandwiched between the first portion and the second portion.
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公开(公告)号：US09655291B2
公开(公告)日：2017-05-16
申请号：US15188328
申请日：2016-06-21
发明人： Osamu Ozaki , Yoshio Okui , Takeshi Kamikado
CPC分类号： H05K9/0075 , H01F6/06 , H01F27/365
摘要： Provided is a multilayer magnetic shield 21 formed of magnetic materials and disposed on the outer side of a superconducting magnet 11, the multilayer magnetic shield 21 including a first magnetic shield 1 disposed on the outer side of the superconducting magnet 11 and a second magnetic shield 2 disposed on the outer side of the first magnetic shield 1. The first magnetic shield 1 includes a first cylinder section 1a enclosing the superconducting magnet 11 and a pair of first flange sections 1b connected to the first cylinder section 1a. The second magnetic shield 2 includes a second cylinder section 2a enclosing the first cylinder section 1a and a pair of second flange sections 2b connected to the second cylinder section 2a. The second cylinder section 2a is disposed in a position with a predetermined space S from the first cylinder section 1a in the radial direction of the first cylinder section 1a. The pair of second flange sections 2b is disposed in positions with the predetermined space S from the pair of first flange sections 1b in the axial direction of the first cylinder section 1a.
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10.发明授权公开(公告)号：US09543754B2
公开(公告)日：2017-01-10
申请号：US14201561
申请日：2014-03-07
IPC分类号： H01B12/00 , H02H7/00 , H01F6/02 , H02H9/02 , G01R33/3815
CPC分类号： H02H7/001 , G01R33/3815 , H01F6/02 , H02H9/023 , Y02E40/68 , Y10S505/85 , Y10S505/872
摘要： An object of the present invention is to provide a method for protecting a superconducting coil, which method prevents damage to the superconducting coil caused by a quench or the like, in a new way, without using a voltage (a change in voltage) generated in the superconducting coil. Provided is the method for protecting a superconducting coil made by winding tape-like superconducting wire having a superconducting layer. Power from a power supply is shut off based on the magnitude of a screening field, which is a difference between a measured magnetic field B in a direction of a thickness of the superconducting wire at a predetermined position, and a magnetic field Bcal in the direction of the thickness of the superconducting wire calculated disregarding an effect of screening current.
摘要翻译： 本发明的目的是提供一种用于保护超导线圈的方法，该方法以新的方式防止由淬火等引起的对超导线圈的损坏，而不使用在其中产生的电压（电压变化） 超导线圈。 提供了用于保护由具有超导层的带状超导线缠绕制成的超导线圈的方法。 基于屏蔽场的大小来切断来自电源的电力，该屏蔽场的大小是在预定位置处超导线的厚度方向上的测量磁场B与在预定位置处的超导线的厚度方向上的磁场Bcal之间的差 超导线的厚度计算不考虑筛选电流的影响。
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