MOTOR COOLING SYSTEM, MOTOR STATOR AND DISC MOTOR

A motor cooling system, a motor stator and a disc motor. The motor cooling system comprises an insulated cooling pipeline (2); the insulated cooling pipeline (2) is mounted on a stator housing (3), the top surface of the insulated cooling pipeline (2) is lower than or flush with the top surface of a stator iron core (4), and the bottom surface of the insulated cooling pipeline (2) touches a coil (5) of the motor stator for use in cooling the coil (5); the top surface of the stator iron core (4) is configured to being arranged relative to a rotor, so that a magnetic field generated by the coil (5) can interact with a rotor permanent magnet. Since the outer bottom surface of the insulated cooling pipeline (2) touches the coil (5) of the motor stator, a liquid coolant in the insulated cooling pipeline (2) can cool the coil (5) by means of heat conduction, thus preventing the motor from burning out due to the temperature of the motor increasing.