Refrigerator fan of carbon-free brush type

The utility model relates to a carbon-free brush type refrigerator fan, which is arranged on the wall face of a refrigerator. The utility model comprises a carbon-free brush type motor and a fan unit, wherein, the carbon-free brush type motor is provided with an armature coil; a magnet ring is arranged on the fan unit. A transmission shaft of the fan unit is plugged in a pivot shaft hole of the carbon-free brush type motor to make the magnet ring sheathed on the outer margin of the armature coil; therefore, the magnet ring and the armature coil can do magnetic field induction to make the magnet ring formed into rotational kinetic energy; magnetic performance generated by the armature coil can be controlled by an electronic component which is used for controlling a base board of a circuit to achieve the carbon-free brush type structure. The utility model has the advantages of no noise rotation, the prolongation of the service life, etc.