Direct lightning protection device for fan blade

Abstract

The invention relates to the technical field of blade direct lightning protection, and discloses a fan blade direct lightning protection device which comprises a direct lightning protection structure which comprises a shielding assembly, four high-voltage large-current switches, a supporting assembly, a first connecting assembly and a second connecting assembly. A mounting base is arranged below the supporting assembly, and further, the shielding assembly comprises a lower shielding case and an upper shielding case. Through the design of a'thundercloud downlink pilot neutralization 'mechanism of the high-voltage large-current switch in the protection device, the protection device has the performance of a charge dynamic regulation and control mechanism, and through accurate control of the high-voltage large-current switch, controllable transmission of ground charges to the lightning arrester is realized, and a single-polarity charge area is formed; and meanwhile, bidirectional function integration can be carried out, the dual functions of neutralization and lightning receiving are achieved, and the safety of the protection device to the fan blade in the lightning environment is guaranteed.

Images