TERMINAL STRUCTURE OF SUPERCONDUCTING APPARATUS

PROBLEM TO BE SOLVED: To provide a terminal structure of a superconducting apparatus, that is capable of suppressing an increase in AC loss; and that is easy to connect a current lead with a normal temperature part connection conductor.SOLUTION: There is provided a terminal structure of a superconducting apparatus comprising a current lead electrically connected to an end portion of a superconductor in a superconducting apparatus, the current lead having an annularly formed cross section orthogonal to an axial direction of the current lead. The terminal structure comprises a sealing member for making the current lead not be immersed in a coolant by sealing the coolant that maintains the superconductor at ultralow temperature toward the superconducting apparatus, and an outer side heat insulating member covering an outer periphery of the current lead.SELECTED DRAWING: Figure 1 【課題】交流損失の増加を抑制でき、しかも電流リードと常温部接続導体とを接続し易い超電導機器の端末構造を提供する。【解決手段】超電導機器の超電導導体の端部に電気的に接続される電流リードを備える超電導機器の端末構造であって、前記電流リードは、その軸方向に直交する断面が環状に形成されており、前記超電導導体を極低温に維持する冷媒を前記超電導機器側に封止して前記電流リードが前記冷媒中に浸漬されないようにする封止部材と、前記電流リードの外周を覆う外側熱絶縁部材と、を備える。【選択図】図１