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1. 发明公开

CN103975395A 超导电磁铁装置、其冷却方法以及磁共振成像装置失效
公开(公告)号：CN103975395A
公开(公告)日：2014-08-06
申请号：CN201280058904.9
申请日：2012-11-28
申请人：株式会社日立制作所
发明人：青木学 , 安藤龙弥 , 村田幸弘 , 中川龙司
IPC分类号： H01F6/04 , A61B5/055 , G01R33/3815 , H01F6/02
CPC分类号： H01F6/04 , G01R33/3804 , G01R33/3815 , H01F6/02 , Y10S505/844 , Y10S505/85 , Y10S505/879 , Y10S505/893
摘要：以如下方式构成超导电磁铁装置，具备：制冷剂(R)进行循环的制冷剂循环流路(6)；对制冷剂循环流路(6)中的制冷剂(R)的蒸气进行冷却的冷冻机(12)；通过循环的制冷剂(R)进行冷却的超导线圈(4)；与超导线圈(4)热接触、并且具有内部空间(S)的保护电阻(10)；向保护电阻(10)内的内部空间(S)供给与制冷剂(R)相比沸点高、并且通过制冷剂(R)冻结的高沸点制冷剂的高沸点制冷剂供给部(22)；至少收纳制冷剂循环流路(6)、超导线圈(4)、以及保护电阻(10)的真空隔热容器(2)。

2. 发明授权

CN103975395B 超导电磁铁装置、其冷却方法以及磁共振成像装置失效
公开(公告)号：CN103975395B
公开(公告)日：2016-10-12
申请号：CN201280058904.9
申请日：2012-11-28
申请人：株式会社日立制作所
发明人：青木学 , 安藤龙弥 , 村田幸弘 , 中川龙司
IPC分类号： H01F6/04 , A61B5/055 , G01R33/3815 , H01F6/02
CPC分类号： H01F6/04 , G01R33/3804 , G01R33/3815 , H01F6/02 , Y10S505/844 , Y10S505/85 , Y10S505/879 , Y10S505/893
摘要：以如下方式构成超导电磁铁装置，具备：制冷剂(R)进行循环的制冷剂循环流路(6)；对制冷剂循环流路(6)中的制冷剂(R)的蒸气进行冷却的冷冻机(12)；通过循环的制冷剂(R)进行冷却的超导线圈(4)；与超导线圈(4)热接触、并且具有内部空间(S)的保护电阻(10)；向保护电阻(10)内的内部空间(S)供给与制冷剂(R)相比沸点高、并且通过制冷剂(R)冻结的高沸点制冷剂的高沸点制冷剂供给部(22)；至少收纳制冷剂循环流路(6)、超导线圈(4)、以及保护电阻(10)的真空隔热容器(2)。

3. 发明授权

EP0981057B1 MRI magnet assembly with non-conductive inner wall 有权
标题翻译：与非导电内壁磁共振成像磁体组件
公开(公告)号：EP0981057B1
公开(公告)日：2006-07-26
申请号：EP99306140.7
申请日：1999-08-03
申请人： GENERAL ELECTRIC COMPANY
发明人： Hedeen, Robert Arvin , El-Hamamsy, Sayed-Amr , Herd, Kenneth Gordon , Edelstein, William Alan , Ackermann, Robert Adolph
IPC分类号： G01R33/3815 , G01R33/385
CPC分类号： G01R33/3854 , G01R33/3815 , Y10S505/879 , Y10S505/893 , Y10S505/898

4. 发明公开

EP0673043A1 Superconducting lead assembly for a cryocooler-cooled superconducting magnet 失效
标题翻译： SupraleitendeZuführungfüreinentieftemperaturgekühltensupraleitenden Magnet。
公开(公告)号：EP0673043A1
公开(公告)日：1995-09-20
申请号：EP95301498.2
申请日：1995-03-08
申请人： GENERAL ELECTRIC COMPANY
发明人： Herd, Kenneth Gordon , Laskaris, Evangelos Trifon , Thompson, Paul Shadforth
IPC分类号： H01F6/06 , H01F6/02 , F17C13/00
CPC分类号： H01F6/065 , Y10S505/844 , Y10S505/879 , Y10S505/893
摘要： A superconducting magnet lead assembly for a cryocooler-cooled superconducting magnet having a design current of between generally 50 and 250 amperes. A DBCO (Dysprosium Barium Copper Oxide), YBCO (Yttrium Barium Copper Oxide), or BSCCO (Bismuth Strontium Calcium Carbonate) superconducting lead has its ends flexibly, dielectrically, and thermally connected, one end to the generally 30 to 50 Kelvin first stage and the other end to the generally 8 to 30 Kelvin second stage of the cryocooler coldhead. The superconducting lead has a generally constant cross-sectional area along its length. The design current, the lead's length, and the lead's cross-sectional area are chosen such that the design current times the lead's length divided by the lead's cross-sectional area is between generally 720 and 880 amperes per centimeter for a DBCO or YBCO lead and is between generally 180 and 220 amperes per centimeter for a BSCCO lead. The superconducting lead will not itself precipitate a magnet quench (i.e., the superconducting lead does not conduct significant heat between the coldhead stages during the superconductive mode), and the superconducting lead will survive a lead quench from other causes (i.e., the superconducting lead does conduct the resistive heat buildup to the coldhead stages during a lead quench) and thus be acceptable for commercial applications.
摘要翻译：一种用于低温冷却超导磁体的超导磁体引线组件，其具有通常为50和250安培之间的设计电流。 DBCO（氧化镝钡氧化物），YBCO（钇钡氧化铜）或BSCCO（铋锶钙氧化铜）超导导线的端部灵活，介电和热连接，一端通常为30至50开尔文第一级另一端通常是低温冷冻机的8〜30开尔文第二阶段。超导引线沿其长度具有大致恒定的横截面积。选择设计电流，引线长度和引线的横截面积，使得引线长度除以引线横截面积的设计电流乘以DBCO或YBCO引线的通常为720至880安培/厘米，对于BSCCO铅，通常在每厘米180和220安培之间。超导引线本身不会沉淀出磁体淬火（即，超导引线在超导模式下在冷端级之间不会产生显着的热），并且超导引线将从其他原因引发淬火（即，超导引线在铅淬火期间对冷头阶段进行电阻积热），因此对于商业应用是可以接受的。

5. 发明授权

US08988176B2 Superconducting electromagnet device, cooling method therefor, and magnetic resonance imaging device 有权
标题翻译：超导电磁铁装置及其冷却方法及磁共振成像装置
公开(公告)号：US08988176B2
公开(公告)日：2015-03-24
申请号：US14360653
申请日：2012-11-28
申请人： Hitachi, Ltd.
发明人： Manabu Aoki , Ryuya Ando , Yukihiro Murata , Ryoji Nakagawa
IPC分类号： H01F6/00 , H01F6/04 , G01R33/3815
CPC分类号： H01F6/04 , G01R33/3804 , G01R33/3815 , H01F6/02 , Y10S505/844 , Y10S505/85 , Y10S505/879 , Y10S505/893
摘要： A superconducting magnet device is configured to include: a refrigerant circulation flowpath in which a refrigerant (R) circulates; a refrigerator for cooling vapor of the refrigerant (R) in the refrigerant circulation flowpath; a superconducting coil cooled by the circulating refrigerant (R); a protective resistor thermally contacting the superconducting coil and having an internal space (S); a high-boiling-point refrigerant supply section for supplying a high-boiling-point refrigerant having a higher boiling point than the refrigerant (R) and frozen by the refrigerant (R) to the internal space (S) in the protective resistor; and a vacuum insulating container for at least accommodating the refrigerant circulation flowpath, the superconducting coil, and the protective resistor.
摘要翻译：超导磁体装置构成为包括：制冷剂循环流路，其中制冷剂（R）循环; 用于冷却制冷剂循环流路中的制冷剂（R）的蒸气的冷冻机; 由循环制冷剂（R）冷却的超导线圈; 与所述超导线圈热接触并具有内部空间（S）的保护电阻器; 高沸点制冷剂供给部，用于供给比制冷剂（R）沸点高的高沸点制冷剂，并由制冷剂（R）冻结到保护电阻体内的内部空间（S）; 以及真空绝热容器，用于至少容纳制冷剂循环流路，超导线圈和保护电阻。

6. 发明授权

US5651256A Superconductive magnet having a thermal shield 失效
标题翻译：具有热屏蔽的超导磁体
公开(公告)号：US5651256A
公开(公告)日：1997-07-29
申请号：US656497
申请日：1996-05-31
申请人： Kenneth Gordon Herd , Bizhan Dorri
发明人： Kenneth Gordon Herd , Bizhan Dorri
IPC分类号： F17C13/00 , H01F6/04 , F25B19/00
CPC分类号： H01F6/04 , Y10S505/893
摘要： A superconductive magnet has a superconductive coil surrounded by a thermal shield surrounded by a vacuum enclosure. The thermal shield has one and preferably several flexible layers of thermally conductive material. A first flexible blanket of multi-layer thermal insulation surrounds the thermal shield within the vacuum enclosure, and a second such flexible blanket surrounds the superconductive coil within the thermal shield. A cryocooler coldhead has a first stage in thermal contact with each of the flexible layers of the thermal shield. At least most of the weight of the thermal shield is supported by the flexible blankets.
摘要翻译：超导磁体具有被由真空外壳包围的热屏蔽包围的超导线圈。热屏蔽件具有一个并且优选地是多个导热材料的柔性层。多层绝热的第一柔性毯围绕真空外壳内的热屏蔽，第二弹性覆盖层围绕热屏蔽内的超导线圈。冷却器冷头具有与热屏蔽的每个柔性层热接触的第一阶段。至少绝热材料的大部分重量由柔性毯子支撑。

7. 发明授权

US5563566A Cryogen-cooled open MRI superconductive magnet 失效
标题翻译：低温冷却开放MRI超导磁体
公开(公告)号：US5563566A
公开(公告)日：1996-10-08
申请号：US555952
申请日：1995-11-13
申请人： Evangelos T. Laskaris , Bizhan Dorri , Robert A. Ackermann
发明人： Evangelos T. Laskaris , Bizhan Dorri , Robert A. Ackermann
IPC分类号： G01R33/3815 , A61B5/055 , G01R33/38 , H01F6/00 , H01F7/22
CPC分类号： G01R33/3806 , G01R33/3815 , Y10S505/893
摘要： An open magnetic resonance imaging (MRI) magnet having longitudinally spaced-apart superconductive main coils surrounded by a dewar containing a cryogenic liquid (e.g., liquid helium) and boiled-off cryogenic gas (e.g., helium vapor). A condenser is in physical contact with the boiled-off vapor and is in thermal contact with a cold stage of a cryocooler coldhead so as to re-liquefy the vapor. This allows the coils to be surrounded by a single (not double) thermal shield which allows the coils structurally to be located closer to the magnet's open space which reduces magnet cost by reducing the amount of coil needed for the same-strength magnetic field.
摘要翻译：具有由包含低温液体（例如液氦）和沸腾低温气体（例如氦气））的杜瓦围绕的纵向隔开的超导主线圈的开放式磁共振成像（MRI）磁体。冷凝器与沸腾的蒸汽物理接触并与冷却器冷头的冷级热接触，以便重新液化蒸气。这允许线圈由单个（不是双重）热屏蔽围绕，其允许线圈在结构上位于更接近磁体的开放空间，从而通过减少相同强度磁场所需的线圈的数量来降低磁体成本。

8. 发明授权

US4291541A Cryostat with external refrigerator for super-conducting NMR spectrometer 失效
标题翻译：低温恒温器与外部冰箱用于超导NMR分析仪
公开(公告)号：US4291541A
公开(公告)日：1981-09-29
申请号：US164451
申请日：1980-06-30
申请人： George D. Kneip, Jr. , Marvin H. Anderson
发明人： George D. Kneip, Jr. , Marvin H. Anderson
IPC分类号： F17C3/08 , F25D3/10 , F25D19/00 , G01R33/3815 , F17C1/00
CPC分类号： F25D3/10 , F17C3/085 , G01R33/3815 , F17C2203/016 , F17C2203/0687 , F17C2221/014 , F17C2221/017 , F17C2270/0509 , F25D19/006 , Y10S220/901 , Y10S505/893
摘要： An improved cryostat for the superconducting magnet of an NMR spectrometer comprises a nested structure of isothermal shells surrounding a thermally conductive central reservoir of substantially spherical shape containing liquid helium in which the superconducting solenoid remains operational when only partially immersed. A radiation shield surrounding the central reservoir is cooled by the boil-off of escaping helium vapor. The radiation shield is enclosed within a isothermal shell maintained at the temperature of liquid nitrogen by thermal contact with a liquid nitrogen reservoir disposed above the region of the central reservoir and shielded therefrom by a wall of the isothermal shell. An outer radiation shield surrounds the liquid nitrogen reservoir and associated isothermal shell and the outer radiation shield is maintained at a temperatures of the order of 180.degree. K. by an external refrigeration facility. A hermitically sealed containment vessel forms the outer wall of the cryostat and provides a port for evacuating to a very low common pressure all the interior spaces between adjacent nested structures. The spacing between adjacent nested surfaces is maintained by a novel internal mechanical bracing system of low thermal conductivity comprising polyester cords disposed under tension between adjacent shells.
摘要翻译：用于NMR光谱仪的超导磁体的改进的低温恒温器包括围绕包含液氦的基本上为球形的导热中心储存器的等温壳体的嵌套结构，其中超导螺线管在仅部分浸入时保持操作。围绕中央储层的辐射屏蔽体由逸出的氦气蒸气冷却。通过与设置在中央储存器的区域上方的液氮储存器热接触并保持在液氮温度的等温壳体中，辐射屏蔽被封闭在等温壳体内，并通过等温壳体的壁与其隔开。外部辐射屏蔽围绕液氮储存器和相关的等温壳，外部辐射屏蔽通过外部制冷设备保持在180°K左右的温度。密闭的密封容器形成低温恒温器的外壁，并提供用于将相邻嵌套结构之间的所有内部空间抽真空至非常低的共同压力的端口。相邻嵌套表面之间的间距由新型的低导热性内部机械支撑系统保持，包括在相邻外壳之间张力下布置的聚酯帘线。

9. 发明授权

EP1612903B1 System and method for quench and over-current protection of superconductor 有权
标题翻译：对于Quenschschutz和超导体的过电流保护方法及装置
公开(公告)号：EP1612903B1
公开(公告)日：2012-10-24
申请号：EP05252675.3
申请日：2005-04-28
申请人： GENERAL ELECTRIC COMPANY
发明人： Huang, Xianrui , Bray, James William , Sivasubramaniam, Kiruba Haran , Ryan, David Thomas , Laskaris, Evangelos Trifon , Steinbach, Albert Eugene , Fogarty, James Michael
IPC分类号： H02H7/00
CPC分类号： H02H7/001 , Y02E40/68 , Y10S505/85 , Y10S505/879 , Y10S505/885 , Y10S505/892 , Y10S505/893

10. 发明授权

US06246308B1 Superconductive magnet including a cryocooler coldhead 失效
标题翻译：超导磁体包括一个低温冷却器
公开(公告)号：US06246308B1
公开(公告)日：2001-06-12
申请号：US09716060
申请日：2000-11-20
申请人： Evangelos Trifon Laskaris , Paul Shadforth Thompson , Yu Wang
发明人： Evangelos Trifon Laskaris , Paul Shadforth Thompson , Yu Wang
IPC分类号： H01F600
CPC分类号： F17C3/085 , F17C2203/0391 , F17C2203/0629 , F17C2223/0161 , F17C2227/0353 , F17C2260/036 , F25B2400/17 , F25D19/006 , G01R33/3815 , H01F6/04 , Y10S505/893 , Y10S505/894
摘要： A magnet, such as an open or closed magnet, has a first assembly with at least one superconductive main coil and with a first vacuum enclosure enclosing the main coil(s). A first cryocooler coldhead has a rigid first housing and is generally vertically aligned. A first flexible bellows is vertically aligned, has a first end attached to the first housing of the first cryocooler coldhead and has a second end attached to the first vacuum enclosure of the first assembly.
摘要翻译：磁体，例如开放或封闭的磁体，具有第一组件，其具有至少一个超导主线圈，以及包围主线圈的第一真空外壳。第一个低温冷却器冷头具有刚性的第一壳体并且通常垂直对准。第一柔性波纹管垂直对准，其第一端附接到第一低温冷却器冷头的第一壳体，并且具有连接到第一组件的第一真空外壳的第二端。

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