The function of the fan blades of a cooling fan is to help the radiator send heat to the environment so that the equipment stays within the proper temperature range. A cooling fan consists of a motor and a set of fan blades, and when the motor runs, the fan blades rotate, taking heat away from the heat sink. Typically, a cooling fan is mounted above the device's heat sink, and the rotating fan blades blow the heat into the surrounding air, allowing the heat sink to distribute the heat to the environment more efficiently. This helps to protect electronic devices from damage caused by overheating and maintains them in proper working order.
