Depending on the power supply mode, "24V DC Cooling Fan" motors are DC and AC motor types. Computer cooling fan motors for use in DC motor, power supply voltage of + 12V, speeds between 1,000 to 10,000 rev / min. "24V DC Cooling Fan" DC is the DC energy into mechanical energy of the rotating machinery. It consists of a stator, a rotor and a commutator three parts. The stator (i.e., the main magnetic pole) is fixed to the "24V DC Cooling Fan" stent, is a non-rotating part of the motor. There are more than two rotor coil winding made from enameled wire, called winding Generates a magnetic field when a current passes through the winding, the role of the magnetic field and the stator magnetic field generating power.