| 摘要 |
PURPOSE:To simplify the structure of a sensor conductive bearing device of a power storing device, so as to stabilize support of a rotor, and simplify control by installing super conductors and a permanent magnet to a fixed shaft having a cooling fluid passage and the cylindrical rotor respectively. CONSTITUTION:A fixed shaft 31, in which a cooling fluid passaage 39 is formed, is provided in a vacuum chamber 30. A cylindrical fly-wheel 32 is arranged around the fixed shaft 31, rotatably and movably in the direction of the rotary axis and the direction orthogonal to the rotary axis respectively in non-contact state. In addition, a ring-like permanent magnet 37 is installed on the fly-wheel 32 concentrically with the fixed shaft 31. Superconductors 17 are attached to the disk-like and hollow cooling cases 38 installed above and below the permanent magnet 37 in opposed relation to the permanent magnet 37. Cooling fluid whose temperature is controlled is sent to the cooling fluid passage 39 and cooling cases 38 from a cooling device 20 provided with a temperature control unit 19 to cool the superconductors 17. |
