Deicing and lightning protection device for unmanned aerial vehicle

Abstract

The invention provides a deicing and lightning protection device for an unmanned aerial vehicle, which is suitable for flying safety devices for the unmanned aerial vehicles. According to the deicing and lightning protection device for the unmanned aerial vehicle, an ultrasonic controller (2) applies an alternating current voltage to a piezoelectric ceramic piece (5) through a lead; through inverse piezoelectric effects of the piezoelectric ceramic pieces (5), oscillation elastomers (4) generate standing wave or travelling wave oscillations; and the deformation applies an ultrasonic mechanical acting force to a freezing layer on the unmanned aerial vehicle so that the freezing layer is broken and falls off under an effect of wind power. The oscillation elastomers (4), which are connected section by section, are connected with pointed dischaging brushes (9); and a good conductive passage is provided to a lightning current so that great damage caused to the unmanned aerial vehicle can be avoided. The deicing and lightning protection device for the unmanned aerial vehicle has the advantages of good deicing effect, lightning protection, simple and compact structural design, light weight and so on and has no influence on the aerodynamic shape of the unmanned aerial vehicle.

Description

Technical field [0001] The invention belongs to the technical field of unmanned aerial vehicle flight safety, and mainly relates to an unmanned aerial vehicle de-icing and lightning protection device. Background technique [0002] There are frequent reports of aircraft (aircraft) being struck by lightning during navigation. However, under normal circumstances, when a manned aircraft encounters lightning, the current can be discharged smoothly through the shielding of the electrical skin on the aircraft to avoid damage to the personnel and equipment inside the aircraft, or the aircraft crash. But for the sake of aircraft safety, flights always try to avoid flying in thunder cloud areas. In addition, when an aircraft flies in a cloud layer of supercooled water droplets, it is easy for ice to form on the outer surface of the aircraft. In particular, ice formation on the wings and tail parts will change the aerodynamic shape of the aircraft, affecting the aircraft's lift and co...

AI Technical Summary

Problems solved by technology

In order to reduce the self-weight of the unmanned aerial vehicle and increase the endurance time in the design, the body of the unmanned aerial vehicle is made of a large number of composite materials, and the composite material has poor conductivity and cannot discharge the current smoothly like a metal skin. Therefore, when struck by lightning, Not only is it easy to damage the surface of the body, but also damage the equipment installed in the body

Under normal circumstances, the operation of unmanned aerial vehicles usually flies under good weather conditions, so deicing and lightning protection devices are not installed. With the expansion of the application field of unmanned aerial vehicles, especially the use of unmanned aerial vehicles for artificial rainfall operations Due to the particularity of the UAV, the UAV must fly through the clouds frequently in the cloud layer with conditioned rainfall, so the UAV is very easy to freeze, and the probability of being struck by lightning is also very high. Therefore, it is designed, developed and installed on the UAV. Protection against ice and lightning strikes is very necessary

Images