| 摘要 |
A generator comprising a stator 14, a rotor 2 configured to rotate relative to the stator, wherein the rotor comprises a plurality of radially extending vanes 12 which are arranged to direct air radially outwards as the rotor rotates, thereby cooling the generator. The vanes may be curved or straight along their radial length and the thickness and height may increase along their radial length. Preferably the rotor or stator is provided with vents towards the centre and preferably the rotor or stator comprises a plurality of coils 20, and the other of the stator or the rotor comprises a plurality of magnets 10a, 10b. Also, the coils may have an opening at their centre, the vanes may be offset or aligned with the magnets, the magnets may be Neodymium magnets and the generator may be a radial flux generator. |
