Perpendicular take-off and landing fixed-wing aircraft with multiple automatic retractable rotors

Abstract

The invention discloses a fixed-wing aircraft on which retractable multi-rotor assemblies are mounted and which can perpendicularly take off and land. In the scheme of the fixed-wing aircraft, the fixed-wing aircraft comprises fixed-wing assemblies, retractable multi-rotor assemblies, a multi-rotor extending and retracting control mechanism, a multi-rotor hatch which can be opened and closed and a hatch opening and closing control mechanism. The fixed-wing aircraft is characterized in that when the aircraft is in a take-off stage or a landing stage or when the aircraft needs to hover in the air, the retractable multi-rotor assemblies in the lower part of an aircraft body are unfolded to provide a perpendicular take-off and landing capacity; when the aircraft cruises at a high speed, the multi-rotor assemblies are retracted in the aircraft body, the multi-rotor hatch is closed to keep the aerodynamic performance of the fixed-wing aircraft; and besides, when the fixed-wing aircraft is in perpendicular take-off and landing state, hovering state and cruising state at a high speed, the highest energy service efficiency can be obtained, so that the fixed-wing aircraft disclosed by the invention has a large perpendicular take-off and landing weight and a long range at the same time. According to the fixed-wing aircraft disclosed by the invention, a solution of a perpendicular take-off and landing fixed-wing unmanned aerial vehicle which is low in cost and high in energy efficiency is provided, is wide in application, and is particularly suitable for being applied to trades including point-to-point article transportation, long-distance cruise and the like.

Description

[0001] Technical field [0002] The invention relates to a vertical take-off and landing fixed-wing aircraft, which is characterized in that the retractable multi-rotor assembly at the lower part of the fuselage is deployed to provide vertical take-off and landing capability during the take-off and landing phase of the aircraft or when the aircraft needs to hover in the air; During the cruising phase, the multi-rotor components are retracted into the fuselage, and the hatch is closed to maintain the aerodynamic performance of the fixed-wing aircraft. Background technique [0003] As we all know, fixed-wing aircraft use the relative airflow movement of the wings to generate lift to resist gravity, and use the deflection of the rudder surface to control. It has the advantages of fast flight speed, long range, heavy load, and high energy efficiency. Realize hovering in the air; the rotorcraft uses one (helicopter) or multiple rotors to generate pulling force against gravity, and ...

AI Technical Summary

Problems solved by technology

Some people have also considered installing a rotor mechanism on a fixed-wing aircraft to achieve vertical take-off and landing, but because the rotor mechanism is exposed to the airflow, it will cause great resistance, and it is difficult to achieve high-efficiency fixed-wing cruise.

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