Split type rotor iron core

The utility model relates to the technical field of motor rotors, and provides a split type rotor iron core, comprising a plurality of fan-shaped stator iron core assemblies which are uniformly arranged along the circumferential direction of a stator, and a first groove structure is formed between every two adjacent fan-shaped stator iron core assemblies; the plurality of permanent magnets are respectively embedded into the corresponding first groove structures; the second injection molding filler is arranged in the circumferential direction of the stator and wraps one side, facing the stator, of the fan-shaped stator iron core assembly; the center of the fan-shaped stator core assembly is provided with a second groove structure, and the second groove structure is filled with a first injection molding filler. The split type rotor core design structure is adopted, a rotor magnetic circuit is optimized, the power density of the motor is improved, the motor has the characteristics of large torque and small magne