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    • 9. 发明申请
    • BOBBIN FOR SUPERCONDUCTIVE MAGNET USING GIFFORD-MCMAHON CRYOCOOLER
    • 使用GIFFORD-MCMAHON CRYOCOOL的超级磁铁的BOBBIN
    • WO2004003946A1
    • 2004-01-08
    • PCT/KR2002/001338
    • 2002-07-16
    • DUKSUNG CO., LTD.JIN, Hong-BeomSIM, Ki-DeokPARK, Byeung-SangKIM, Hyung-JinCHOI, Suk-JinHAN, Ho-HwanKIM, Kyung-Han
    • JIN, Hong-BeomSIM, Ki-DeokPARK, Byeung-SangKIM, Hyung-JinCHOI, Suk-JinHAN, Ho-HwanKIM, Kyung-Han
    • H01F6/04
    • H01F6/04
    • A bobbin for superconductive magnet adopting a conductive cooling system using a GM(Gifford-McMahon) cryocooler is provided, in which the bobbin includes a bobbin constituted by a central insulating portion and upper and lower conduction portions each of which has an end coupled to both ends of the central insulating portion and the other end with edges, the bobbin having a superconductive coil being wound along the outer periphery thereof and fixed to the edges of upper and lower conduction portions of the bobbin; a rectangular thermal capacitor having a side an upper end of which being perpendicularly coupled with a lower end of a head portion of the GM cryocooler; a conductive cooling rod having an end coupled with upper and lower ends of the other side of the thermal capacitor, with an insulation member interposed between the conductive cooling rod and the thermal capacitor, the conductive cooling rod having the other end coupled to sides of edges of the bobbin; a rod cable serving as a current lead-in portion, and which is coupled to sides of the edges of the bobbin so as to apply an electric power from a power source to the bobbin; and a pair of diodes connected in parallel to a protrusion formed at the other sides of the edges. The bobbin of the present invention provides advantages as follows; difficulty of electrical insulation between the current lead-in portion and bobbin is eliminated through the bobbin which is coupled in three stages by upper and lower conduction portions and central insulating portion; thermal conductivity is improved through the thermal capacitor, conduction cooling portion and thermal anchor; mechanical strength of the bobbin is improved through the press plate, grooves for soldering and thermal anchor; and the current is by-passed upon breakdown of the magnet, and electrical energy is emitted in a thermal energy, to thereby prevent local concentration of heat.
    • 提供采用GM(Gifford-McMahon)制冷机的导电冷却系统的超导磁体线轴,其中线轴包括由中心绝缘部分构成的线轴和上下导电部分,每个导体部分的一端与两个 中心绝缘部分的端部和另一端具有边缘,线轴具有超导线圈,沿着其外周缠绕并固定到线轴的上导通部分和下导体部分的边缘; 矩形热电容器,其侧面的上端与GM制冷器的头部的下端垂直连接; 导电冷却棒,其端部与所述热电容器的另一侧的上端和下端连接,绝缘构件插入在所述导电冷却棒和所述热电容器之间,所述导电冷却棒的另一端连接到所述边缘的边缘 的筒管; 杆电缆,用作电流引入部分,并且耦合到线轴的边缘的侧面,以将来自电源的电力施加到线轴; 以及与形成在边缘的另一侧的突起平行地连接的一对二极管。 本发明的线轴提供如下优点: 通过上下导电部分和中心绝缘部分分三级耦合的线轴消除了电流引入部分和线轴之间的电绝缘的困难; 通过热电容器,传导冷却部分和热锚改善热导率; 通过压板,用于焊接和热锚的槽改善了筒管的机械强度; 并且电流在磁体破坏时被旁路,电能以热能发射,从而防止局部的热集中。