1results about How to "Increase rated power" patented technology

The utility model discloses a rotor assembly for motor, motor and vehicle relates to motor technical field, and rotor assembly includes: the pivot, and the pivot forms first cooling runner, a plurality of first laminated sheet all are set in the pivot, and the first laminated sheet forms the magnetic steel groove for installing magnetic steel, the second laminated sheet is set in the pivot, and the second laminated sheet is equipped with between at least two first laminated sheets, and the second laminated sheet forms second cooling runner, and second cooling runner communicates first cooling runner and magnetic steel groove. Through setting second cooling runner, and second cooling runner communicates first cooling runner and the magnetic steel groove of adjacent first laminated sheet, can make the cooling medium in first cooling runner flow into magnetic steel groove through second cooling runner, is favorable to the cooling medium and can directly cool the magnetic steel assembled in magnetic steel groove to improve the rated power of motor, can also reduce the risk of thermal demagnetization of magnetic steel temperature too high to reduce the risk of motor thermal failure, improve the working reliability of motor.