| 摘要 |
PURPOSE:To obtain a lead wire which possesses high strength, easy design and terminal treating also fine cooling efficiency by a method wherein a cooling groove is formed along to longitudinal direction on peripheral face of a conduc tor, and a spiral spring is provided on peripheral face of the conductor, also the title wire is constituted by means that the conductor is covered by covering which forms spiral cooling path to surrounding of the conductor. CONSTITUTION:Refrigerant in a connecter 13b flows into a cooling groove 13d in a main body 13a of a lead wire 13 and rises up along to the cooling groove 13d and then rises up along to a cooling path 15 surrounded by the main body 13a, a spiral spring 13f and covering 13c, thus is drained through a draining the 16 after cooling the main body 13a. As refrigerant cools directly the main body 13a around the cooling groove 13d and the outside face of the main body 13a facing to the cooling path 15, the main body 13a is cooled effec tively. Additionally, as the conductor 13A is shaped at a stick-state, the strength is higher in comparison with a braided wire. Moreover, reliability of heat conduc tion calculation and strength calculation is arised and design is performed easily then the connection with the superconductive wire can be simplified. |
