Permanent magnetic alternating-current power generator cooling structure for unmanned aerial vehicle power source system

• Main Authors: ZHAO QUNBI, LIU NINGXIA, LI QINGHE, ZHANG LIKE
• Format: Patent
• Language: Chinese; English
• Published: 12.02.2019
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

The invention provides a permanent magnetic alternating-current power generator cooling structure for an unmanned aerial vehicle power source system. The structure comprises a shell and a rotor ventilation structure, ventilation ports in circumferential distribution are arranged at positions, close to two ends of the shell, of the side wall of the shell, the rotor ventilation structure is composedof a rotating shaft, a support and a rotor magnetic yoke, a support is a starlike hollow support, radial ribs uniformly distributed along the peripheral direction are arranged on the outer side wallof the support, each radial rib is divided into two sections different in radial size along the axial direction of a cylindrical structure, the rotor magnetic yoke is fixed on the excircle of the radial rib small in radial size in a supported manner, and the radial rib big in radial size serves as a centrifugal fan. By processing the ventilation ports at corresponding positions at two ends of thepower generator shell, arra