Inner limiting structure of motor

The utility model relates to the technical field of motors, in particular to an inner limiting structure of a motor, which comprises a base, a front end cover is fixedly mounted at one end of the base, a through hole is formed in the center of the front end cover, a first bearing is fixedly mounted in the through hole, and a stator core is fixedly mounted on the inner wall of the middle of the base. A stator winding is wound on the stator iron core, the interior of the stator iron core is connected with a rotor limiting frame, a rotor is fixedly installed in the rotor limiting frame, a rear end cover is installed at the other end of the machine base, a groove is formed in the center of the rear end cover, and the interior of the groove is fixedly connected with a second bearing. A junctionbox is fixedly installed on the upper surface of the machine base, a fan is arranged on the right side of the machine base and connected with a main shaft, a housing is fixedly installed at the rightend of the machine base,