What are the advantages and disadvantages of the vaneless fan?
The base of a fan without leaves determines that the diameter of the fan blades inside it is usually small, so that the same amount of air as the ordinary fan must be made to turn the blade faster, so the noise will be greater
Non - leaf noise makes it necessary to absorb air at the base
The vaneless fan must have blades, but the blade is in the base where you can't see it. Breathe in the air from the bottom and blow it out of the upper circle slit
From the mechanical principle, the suction air and blowing air must use the turbine blade structure, the current technology must be so
