UAV BATTERY CHARGER Russian patent published in 2023 - IPC B64U50/34 B64U50/19 B64U30/10 H02J7/00 H02N1/04 

FIELD: unmanned aerial vehicles (UAVs).

SUBSTANCE: recharging batteries of unmanned aerial vehicles (UAVs) during flight. Device for recharging the battery of an unmanned aerial vehicle contains a threshold device, a power source in form of a supercapacitor and onboard electrodes made in form of two blocks of a monoelectret, one of which has a positive charge, and the second has a negative charge and a covering sheet electrically isolated from other structural elements placed on the wing consoles, connected to the input of the monoelectret block having a positive charge. The monoelectret block having a negative charge is provided with an output for connecting to the wing of an unmanned aerial vehicle, the blocks of monoelectrets are connected to the input of a threshold device, the output of which is connected to the input of the supercapacitor containing a control unit. On the surface of the covering sheet there is a layer of aluminum oxide with a thickness of 20-50 microns, treated with caesium vapor with a thickness of at least 1 micron. Monoelectret blocks are located inside the wing of the aircraft.

EFFECT: increase of length and range of flight of the UAV.

1 cl, 2 dwg