Efficient heat dissipation brush motor

The invention belongs to the technical field of brush motors, and particularly relates to an efficient heat dissipation brush motor which comprises a motor shell, a rotating shaft is rotatably connected to the interior of the motor shell, a plurality of rotors are fixed to the outer side of the rotating shaft, and a sealing plate is fixed to one end of the interior of the motor shell. A sealing plate is arranged in the motor shell, a plurality of air outlet holes are formed in the sealing plate, a plurality of air inlet holes are formed in one end, far away from the sealing plate, of the outer side of the motor shell, and the cooling part comprises an input pipeline, an output pipeline, a gas-liquid rotating joint, a plurality of cooling pipes and a plurality of flow guide pipes. The cooling medium is driven by the circulating pump module to circularly flow in the heat dissipation channel and absorb heat in the motor shell, the heat dissipation efficiency is improved while the internal sealing performance of