Fuel cell hydrogen spray pipe hybrid power system and unmanned aerial vehicle system applying same

Abstract

The invention provides a fuel cell hydrogen spray pipe hybrid power unmanned aerial vehicle, and relates to the field of aircrafts. The invention aims to meet the requirements of long-time cruise flight and short-time high-maneuverability flight of the unmanned aerial vehicle. The unmanned aerial vehicle comprises an unmanned aerial vehicle body structure, a flight control device, a signal transmission device, a loading bin, an aileron control surface, an empennage control surface and a fuel cell hydrogen spray pipe hybrid power system. When the unmanned aerial vehicle is in a cruising state,the propulsion power required by the unmanned aerial vehicle is small, and a hydrogen spray pipe does not work, hydrogen enters a fuel cell stack to generate electricity to drive an electric propeller, when the unmanned aerial vehicle needs to fly with high maneuverability, high-pressure hydrogen is input into an ejector, outside air is pumped into the ejector and mixed, mixed gas is introduced into a combustion chamber, ignited by an electric igniter and then sprayed out through a spray pipe, and large thrust is provided for the unmanned aerial vehicle. By combining the fuel cell and the hydrogen spray pipe, the requirements of long-endurance cruise and short-time maneuvering flight of the unmanned aerial vehicle are met.

Description

technical field [0001] The invention relates to a fuel cell hydrogen nozzle hybrid power system and an unmanned aerial vehicle system using the same, belonging to the technical field of aircraft. Background technique [0002] Fuel cell electric propulsion aircraft has attracted people's attention as a clean and environmentally friendly electric propulsion method. The fuel cell system using hydrogen as the energy source has a higher energy density than the traditional lithium battery energy source, which can provide a longer battery life for electric aircraft, but the power density of the fuel cell power system is low, which cannot meet the high-power flight requirements of the aircraft. Therefore, people have adopted the method of forming a hybrid with other power sources to provide power for the UAV. At present, lithium batteries with high power density are usually used as auxiliary energy in fuel cell hybrid power systems, but this method needs to load a lithium battery w...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem of both long-term cruising flight and short-time high-maneuverability flight of the UAV mentioned in the above-mentioned background technology, and the lack of mobility caused by the low power density of the fuel cell electric propulsion UAV power system To solve the problem, a fuel cell hydrogen nozzle hybrid power system and a UAV system using it are proposed. The fuel cell hydrogen nozzle is used to provide short-term high-power propulsion for the UAV, so that the UAV uses a simple The structure and light extra weight enable the ability to fly with high power

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