Electric motor rotor and electric motor

Abstract

The application discloses a motor rotor and a motor. The motor rotor comprises a rotor body, a rotating shaft hole and a plurality of magnetic steel slot assemblies. The rotating shaft hole is located at the center of the rotor body. The magnetic steel slot assemblies are arranged on the rotor body, and the plurality of magnetic steel slot assemblies are equidistantly arranged around the circumference of the rotating shaft hole. The magnetic steel slot assembly comprises a plurality of magnetic steel slots arranged along the radial direction of the rotating shaft hole. The magnetic steel slot comprises a plurality of sub-slots, and the plurality of sub-slots at least comprise a first sub-slot and a second sub-slot which are arranged at intervals along the circumferential direction of the rotating shaft hole. The first sub-slot and the second sub-slot are symmetrical about a first symmetry axis, and the first symmetry axis passes through the axis of the rotating shaft hole. The first symmetry axes of the plurality of magnetic steel slots of the same magnetic steel slot assembly coincide. The first sub-slot and the second sub-slot are isolated by a magnetic isolation bridge, and the magnetic isolation bridge is connected with the rotor body. The motor rotor provided by the application has high mechanical strength, and the stability of the motor rotor during high-speed operation is improved.

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