Mechanism for realizing automatic power-off aiming at overheating fault of permanent magnet motor

The utility model discloses a mechanism for realizing automatic power-off in allusion to an overheating fault of a permanent magnet motor, which relates to the technical field of permanent magnet motors and comprises a base, a power-off structure and an exhaust structure, a main body is mounted at the top end of the base, and a main shaft is mounted on one side in the main body through a rotating shaft; ventilation pipes are installed at the upper end and the lower end of one side of the body, one ends of the ventilation pipes extend to one side in the body, the exhaust structures are located on the sides, close to the ventilation pipes, of the upper end and the lower end in the body, a permanent magnet rotor is installed on the outer wall of a main shaft in the body, and a stator iron core is installed on the inner wall of the body. And the inner wall of the stator core is provided with a stator winding. The magnetic block drives the push rod, the push rod drives the second conducting strip, the fixed spring