Air cooling is a type of cooling method that uses air as a medium to cool an object that needs to be cooled.
There are usually three methods:
1. Increase the surface area of the object to be cooled (ie, add a heat sink to the surface of the object, usually hanging the heat sink outside the object or fixing it on the object to make the heat dissipation more efficient)
2. Speed up the flow of air through the object per unit time (ie use an air-cooled fan to increase ventilation volumn)
3. Method 1 and Method 2 are used together
