| 摘要 |
PROBLEM TO BE SOLVED: To improve the rotating performance of a rotor by providing a magnet to generate magnetic flux at a good efficiency to the rotor. SOLUTION: A rotor including an annular magnet 21 and a stator providing a coil are provided to rotate the rotor through commutation in the coil of stator. The magnet 21 of rotor has at least two N poles and S poles respectively against the stator and the line of magnetic force passing these N and S poles is continuous within the magnet 21. |
