External rotor motor capable of enhancing heat dissipation

The utility model discloses an external rotor motor capable of enhancing heat radiation, and aims to provide an external rotor motor capable of enhancing heat radiation, which can effectively solve the problem that the operation reliability and the service life of a chip are affected due to poor heat radiation effect of a controller of an external rotor motor in the prior art. The motor stator comprises a stator shell, the stator shell comprises a control box made of metal materials, an electric control board and a chip arranged on the electric control board are arranged in the control box, and the motor stator is characterized by further comprising an anti-loosening chip pressing structure, a chip mounting plane is arranged in the surface of the inner side wall of the control box, and the chip mounting plane is provided with an anti-loosening chip. A plurality of radiating fins are arranged on the surface of the outer side wall of the control box and correspond to the mounting plane, the anti-loosening chip