To avoid weight increasing of a harness or remarkable generation of a Joule heat even if large current flows to a power supply line.
In a drive system for a vehicle, a cooling means 4 has a thermal insulator 41 for a cold insulation, a refrigerant circulator 42, and a refrigerant supply unit 43. The thermal insulator 41 covers a superconducting motor 1 and the power supply line 3, and a space 41a covered with the thermal insulator 41 is cooled by the refrigerator circulated by the refrigerant circulator 42. Thus, the field coil 1a and the power supply line 3 provided in the superconducting motor 1 become a superconducting state. Since the power supply line 3 is in the superconducting state, even if the large current flows to this, generating Joule heat can be much reduced. In addition, the radius of the power supply line 3 is not thickened, and hence the weight of the harness is not increased as well.
| JPH0847102A | 1996-02-16 | |||
| JPH066907A | 1994-01-14 | |||
| JPS6476920A | 1989-03-23 | |||
| JPS63254611A | 1988-10-21 | |||
| JPH02162706A | 1990-06-22 |
| WO2002025761A1 | 2002-03-28 |
Yoshitake Hidetoshi
Takahiro Arita
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