| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor of a magnet generator, which does not weaken the mechanical strength of its flywheel, is not dangerous, and does not generate large energy loss and wind noise by the rotation of the flywheel. SOLUTION: The rotor for the magnet generator has a flywheel 2, permanent magnets 3 supported on the inner periphery of a cylindrical part 2a of the flywheel 2, a boss part 4 which is provided in a bottom part 2b of the flywheel and fixed to the shaft, vent holes 5 provided in the bottom part 2b of the flywheel 2, and protruding objects 6 which protrude each inward at the front side in the rotating direction of the fly wheel 2 viewed from each vent hole 5 at the position adjacent to the vent hole 5 in the bottom 2b inside the flywheel 2 and produce negative pressure in the interior of the flywheel 2 corresponding to the respective vent holes 5. Each protruding object 6 is formed extending each magnet positioning resin 10 positioning each permanent magnet 3 inside the flywheel 2.
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