Low profile heat dissipating fan

摘要

An electric fan includes a stationary assembly and a rotor ( 40 ) being rotatable with respect to the stationary assembly. The stationary assembly includes a support member ( 16 ) located at a center portion thereof, and a stator ( 20 ) mounted around the support member. The rotor includes a blade set ( 41 ) having a rotary shaft ( 412 ) extending from the blade set toward the stationary assembly and pivotably supported by the support member. A rail assembly consisting of a lower rail ( 18 ) and an upper rail ( 49 ) is attached to the stationary assembly and the blade set to movably support the rotor on the stationary assembly.