DETACHABLE ELECTRIC-CURRENT LEAD

申请公布号：

JPH0394404(A)

申请号：

JP19890231119

申请日期：

1989.09.06

申请公布日期：

1991.04.19

申请人：

ISHIKAWAJIMA HARIMA HEAVY IND CO LTD

发明人：

MIYAZAKI MITSUNARI;TAKAHASHI MASAO;HORI MASAYOSHI

分类号：

H01F6/00;H01L39/04

主分类号：

H01F6/00

摘要：

PURPOSE:To decrease penetration heat and to reduce consumption amount of a coolant by a method wherein, after an electric current has been supplied, this lead can be pulled out from a cooling container. CONSTITUTION:Electrode parts 11, 13 are installed at the inside and the outside of a cooling container 1 such as a cryostat or the like; a guide tube 14 which is detachable in a sealed state is attached and detached between the electrode parts 11, 13; the prescribed number of leads 10 are attached inside the guide tube 14 in an insulating state; an expansion and contraction part 16 at the lower part is expanded by using a clamping rod 18 which is inserted from the upper part; the rod is brought into contact with the electrode part so that an electric current can be supplied. Consequently, it is possible to contract a lead part 15 after the electric current has been supplied and to pull it out to the outside of the cooling container 1 together with the guide tube 14. Thereby, the electrode lead 15 is not situated inside the cooling container during an operation in a persistent-current mode, penetration heat is decreased and consumption amount of a coolant is also reduced.