Aviation AC permanent magnet generator heat radiation structure and generator using same

• Main Authors: LI WENJIE, CAO BOYU, WANG SHUAI, JIAO LEIHAO, WANG DA
• Format: Patent
• Language: Chinese; English
• Published: 03.12.2021
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

The utility model provides an aviation AC permanent magnet generator heat radiation structure and a generator using the same. A motor rotor is axially provided with a notch for placing a permanent magnet; ventilation holes are formed in the side, close to a rotating shaft, of the motor rotor to increase rotor heat dissipation, and ribs clamped by the adjacent ventilation holes are similar to an axial-flow fan structure in shape. The front end cover of the motor is integrated with the casing, the rear end cover is matched with the casing through a seam allowance during assembly, the front end cover and the rear end cover are provided with ventilation holes in the axial direction, and when the motor runs, air enters from the ventilation holes of the front end cover and flows out from the rear end cover of the motor after passing through a motor rotor ventilation duct. According to the structure provided by the utility model, when the motor operates, the rotor ribs can replace a fan in the motor, thereby increas