Double-function motor

A double-function motor is a hub and motor power generation all-in-one machine, and comprises a rotor formed by arraying magnets having two polarities in an alternative manner, and a stator on which an alternating current coil is wound. The skeleton of the rotor is a vehicle wheel rim; the magnets are inlayed on the inner surface of the vehicle wheel rim; the skeleton of the stator on which the alternating current coil is wound is fixedly sleeved on the middle section, positioned in the inner ring of the vehicle wheel rim, of an intermediate shaft of a vehicle wheel. The double-function motor has the advantages that the drive mode of the traditional electric vehicle is changed, each wheel per se is changed into a drive motor, and thus the drive efficiency is greatly improved; as each wheel is a dual-purpose device serving both as the motor and a generator, and therefore the efficiency of renewable energy is higher under the condition that the wheel still rotates inertially after power failure.