Patent ID: 7462961
Filing Date: 2008-12-09
Classification: H02K,Y02E

Abstract:
1. A superconductivity rotor comprising: a field coil pattern would with a superconductivity wire; a support portion for supporting the field coil portion; a torque tube positioned at both ends of the support portion and transmitting a torque to an outside from the field coil portion; an inner casing for housing the field coil portion and the support portion; and an outer casing for housing the inner casing and the torque tube, wherein the torque tube consists of a first torque tube positioned at one end of the support portion and a second torque tube positioned at the other end of the support portion, the first torque tube is formed into a vessel shape and has a plurality of engagement holes formed along a periphery thereof so that the first torque tube is engaged with an engagement member, the second torque tube comprises a disc-shaped structure consisting of plural plates, main ring-shaped members stacked, and an auxiliary ring-shaped member when stacking the plate and the main ring-shaped member, and is engaged with an engagement member, and the plate, the main ring-shaped member and the auxiliary ring-shaped member have a plurality of engagement holes formed along peripheries thereof so that they are fastened with the engagement member, and a through-hole formed at a center thereof, respectively, and the auxiliary ring-shaped member is positioned in the through-hole of the main ring-shaped member.