ROTOR PUNCHING SHEET FOR NEW ENERGY AUTOMOBILE HUB MOTOR

摘要

Disclosed is a rotor punching sheet (1) for a new energy automobile hub motor. At least two fixing grooved holes (2) for improving the stability of the rotor structure are evenly circumferentially provided on an annular face of the rotor punching sheet, at least one dynamic balance notch (3) for reducing the vibration and noise of the motor during operation is evenly provided in an outer circumferential face of the rotor punching sheet, and steps (4) extend inwards from an inner annular face of the rotor punching sheet; and at least one T-shaped magnetic steel sheet (5) for improving the output power and efficiency of the motor perpendicularly extends from and is connected to each step (4), a magnetic steel sheet notch (6) is formed between a cross rod part of the T-shaped magnetic steel sheet (5) and the inner annular face of the rotor punching sheet (1), and the T-shaped magnetic steel sheet (5) is arranged corresponding to each fixing grooved hole (2). The rotor punching sheet (1) for the new energy automobile hub motor is used together with a new energy automobile; a 380 V, 8-pole and 75 kW outer rotor hub motor has a good operating performance; the noise and the vibration of the motor are reduced; and the driving safety and the transmission efficiency of the automobile can be improved.