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公开(公告)号：US11980106B2
公开(公告)日：2024-05-07
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：US11938554B2
公开(公告)日：2024-03-26
申请号：US17342805
申请日：2021-06-09
IPC分类号： H01P3/06 , B23K1/00 , C25D3/12 , C25D3/38 , C25D5/12 , C25D5/34 , C25D5/38 , C25D7/06 , H01B11/18 , H01B12/00 , H01P11/00 , B23K101/38 , H01B13/016
CPC分类号： B23K1/0016 , B23K1/0008 , C25D3/12 , C25D3/38 , C25D5/12 , C25D5/34 , C25D5/38 , C25D7/0607 , H01B11/1817 , H01B12/00 , H01P3/06 , H01P11/005 , B23K2101/38 , H01B13/016
摘要： A structure, such as a cable assembly, is provided that has a Nb/Ti substrate and a metal layer electroplated on a portion of the Nb/Ti substrate, wherein the metal layer has a metal capable of being soldered to, such as copper, and a metal coaxial connector soldered to the metal layer.
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公开(公告)号：US11764562B2
公开(公告)日：2023-09-19
申请号：US17879309
申请日：2022-08-02
CPC分类号： H02G15/34 , F25D19/006
摘要： The present application discloses a terminal structure for conduction cooling high temperature superconducting cable, comprising: a cable terminal body; a terminal thermal insulation shell, in which a vacuum thermal insulation cavity is formed, and the cable terminal body being arranged in the vacuum thermal insulation cavity; a refrigeration mechanism comprising a refrigeration output part extending into the vacuum thermal insulation cavity, and the refrigeration output part being connected to the cable terminal body through a cooling-conducting structure. The terminal structure provided by the present application cools the high-temperature superconducting cable by means of conduction cooling of a refrigerator without operations of low-temperature liquid transportation and supplementary, and can operate for a long time without regular maintenance, reduce the heat leakage of the cable terminal, improve the utilization efficiency of the cooling capacity of the refrigerator, and effectively ensure the stable operation of the cable for a long time.
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公开(公告)号：US11694824B2
公开(公告)日：2023-07-04
申请号：US16754921
申请日：2018-11-02
申请人： Hitachi, Ltd.
发明人： Motomune Kodama , Hideki Tanaka , Takaaki Suzuki , Hiroshi Kotaki
IPC分类号： H01B12/00
CPC分类号： H01B12/00
摘要： The purpose of the present invention is to provide a method for causing sufficient deformation in precursor particles even when a soft high-purity metal is used for an outer layer material in mechanical milling, and manufacturing an MgB2 superconducting wire. A method for manufacturing an MgB2 superconducting wire in which an MgB2 filament is covered by an outer layer material, the method comprising: subjecting magnesium powder and boron powder to a shock that is insufficient for MgB2 to be clearly produced, and producing precursor particles in which boron particles are dispersed inside a magnesium matrix; filling a metal tub with the precursor particles; processing the metal tube filled with precursor particles to form a wire; and heat-treating the wire to synthesize the MgB2; wherein the method is characterized in that a portion of the wire-drawing step includes swaging.
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公开(公告)号：US11189398B2
公开(公告)日：2021-11-30
申请号：US16734491
申请日：2020-01-06
申请人： ROLLS-ROYCE plc
发明人： Chloe J. Palmer
摘要： A superconducting electrical power distribution system has a superconducting bus bar and one or more bus bar thermal conductor lines extending in thermal proximity along the bus bar to receive heat from the bus bar over the length of the bus bar. The system further has superconducting cables electrically connected to the bus bar at respective electrical joints distributed along the bus bar. The system further has a cryogenic cooling sub-system. The system further has a network comprising first and second thermal conductor lines, each line comprising a cold end which is cooled by the cryogenic cooling sub-system, and an opposite hot end, whereby heat received by each line is normally conducted along the line in a direction from its hot end to its cold end.
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公开(公告)号：US11075508B2
公开(公告)日：2021-07-27
申请号：US16612778
申请日：2018-05-29
发明人： Yasuhide Ishiguro , Akio Sato , Shigeto Sakashita
摘要： A thermal-insulated multi-walled pipe for superconducting power transmission comprises: a superconducting cable; a multi-walled pipe composed of a plurality of straight pipes and houses the superconducting cable; and a plurality of spacers that are located between adjacent two straight pipes of the plurality of straight pipes, wherein a cross-sectional shape of each spacer is a polygon having three or more vertices, each spacer has a through-hole at a center in the plane, an inner straight pipe is located to pass through the through-hole, a frictional coefficient μi between each spacer and the inner straight pipe is 0.1 or less, a frictional coefficient μo between each spacer and an outer straight pipe is 0.1 or less, and a ratio Ld/d of a diagonal equivalent length Ld of the polygon to an inner diameter d of the outer straight pipe of the adjacent two straight pipes is 0.9 or less.
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公开(公告)号：US11031706B1
公开(公告)日：2021-06-08
申请号：US16923858
申请日：2020-07-08
申请人： Google LLC
发明人： Selver Corhodzic
摘要： A system for powering a datacenter campus including a first main direct current (DC) superconductor cable configured to receive direct current DC electrical power from a first alternating current (AC) power grid through a first AC-DC converter, a second main DC superconductor cable configured to receive DC electrical power from a second AC power grid through a second AC-DC converter, a DC-DC hub connected to the first and second main superconductor cables, and a plurality of secondary DC superconductor cables, wherein each secondary DC superconductor cable includes a first end electrically connected to the DC-DC hub and a second end electrically connected to server racks housed in a respective datacenter building of the datacenter campus.
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公开(公告)号：US10910132B2
公开(公告)日：2021-02-02
申请号：US15540928
申请日：2015-12-22
发明人： Kosei Fukuoka , Yuki Ito , Kazunari Maki
摘要： The present invention is a superconducting wire including: a wire formed of a superconducting material; and a superconducting stabilization material disposed in contact with the wire, in which the superconducting stabilization material is formed of a copper material which contains: one or more types of additive elements selected from Ca, Sr, Ba, and rare earth elements in a total of 3 ppm by mass to 400 ppm by mass; a balance being Cu and inevitable impurities, and in which a total concentration of the inevitable impurities excluding O, H, C, N, and S which are gas components is 5 ppm by mass to 100 ppm by mass.
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公开(公告)号：US09887339B2
公开(公告)日：2018-02-06
申请号：US14384993
申请日：2013-02-11
发明人： Harry Hedler , Ingo Kuehne , Markus Schieber , Joerg Zapf
CPC分类号： H01L35/00 , G01J5/02 , G01J5/023 , G01J5/12 , G01J2005/123 , H01L35/32 , H01L35/34 , Y10T29/49201
摘要： An infrared sensor with a microstructure has a multiplicity of sensor rods protruding from a sensor base and arranged axially parallel to one another. Each of the sensor rods is designed as a thermocouple, in that a first rod end, arranged on the sensor base, is electrically connected to an opposite free second rod end by both a first and a second electrically conductive rod element. The two rod elements have a different Seebeck coefficient, and the first rod element is formed as a hollow profile and the second rod element is arranged in the first rod element such that each thermocouple is formed as a single rod with a small standing area on the sensor base.
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公开(公告)号：US09875833B2
公开(公告)日：2018-01-23
申请号：US14652710
申请日：2013-12-02
摘要： A superconducting coil device includes at least one coil winding, including at least one first and one second superconducting strip conductor, the first and second strip conductors each having a superconducting layer and a contact side provided with a contact layer; at least one first contact electrically connecting the contact side of the first strip conductor to an external circuit via a first contact piece; at least one second contact electrically connecting the contact side of the second strip conductor to the external circuit via a second contact piece; and a third contact electrically connecting the first and second strip conductors via the contact layer of the first and the second strip conductor within the coil winding, wherein the contact side of the first strip conductor has a different orientation relative to a center of the coil winding than the contact side of second strip conductor.
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