| 摘要 |
There is provided a fan motor in which an increase in the temperature of windings thereof is surpressed, thereby achieving a long life and high performance. Vent holes 33 for introducing air into a cup-like member 9 are formed in a bottom wall section 9b of a rotor 6. Air flowing direction adjusting ribs 37, which are arranged at intervals in a peripheral direction and each of which extends in a radial direction, are integrally provided on the inner surface of the bottom wall section 9 so that air flown out of exits 33b of the vent holes 33 is directed toward windings 3. In addition to the air flowing direction adjusting ribs 37, a plurality of air stirring ribs 39 for stirring the air inside the cup-like member 9 is arranged on the inner surface of the bottom wall section 9.
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