Rotor punching sheet structure, motor rotor and motor

The rotor punching sheet structure comprises a punching sheet body, eight magnetic steel grooves are uniformly distributed on the punching sheet body, each magnetic steel groove is a radial V-shaped magnetic steel groove, two end portions of each magnetic steel groove are respectively provided with a magnetic isolation bridge, each magnetic isolation bridge is a quadrilateral groove, the punching sheet body is arranged in a circular shape, and the magnetic isolation bridges are arranged on the periphery of the punching sheet body. A rotor shaft hole is formed in the middle of the punching sheet body, each magnetic steel groove is formed by two rectangular grooves, and the long edge of each magnetic isolation bridge and the long edge of the rectangular groove connected with the magnetic isolation bridge are arranged at a first angle. According to the utility model, through the application of the rotor punching sheet and the design of the magnetic isolation bridge with a certain size on the rotor punching sheet