The cooling effect of the cooling fan is indeed related to the number of fan blades, but this is only one of the influencing factors. Here's a detailed explanation:

1. Wind pressure

Wind pressure: More blades generally provide higher wind pressure, which is beneficial for cooling scenarios that require high wind pressure.

2. Blade design

Shape and Angle: Optimized blade design allows for better air flow and higher efficiency with a relatively small number of blades.

3. Noise level

Number of blades: More blades can reduce the load on a single blade, thus reducing the speed and reducing noise at the same air volume. However, more blades may also lead to more air disturbance, increasing noise.

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