Unmanned aerial vehicle

Abstract

The utility model relates to the field of aviation technology, specifically to unmanned aerial vehicles. The unmanned aerial vehicle comprises a disk-shaped body, lighter-than-air gas, electric motors with propellers rigidly attached to the disk-shaped body, within which is located a control system connected to said electric motors, and a battery. The device further comprises a hollow and sealed reservoir for the lighter-than-air gas, in the form of a plano-convex lens, the flat base of which is attached to the upper surface of the body using locks. A valve is hermetically installed in the convex surface of the lighter-than-air gas reservoir. Radial rods are rigidly attached at their ends to the side surface of the disk-shaped body, and electric motors with propellers are rigidly attached to the other ends of the rods. The technical result consists in reducing the labor intensity of repairing the unmanned aerial vehicle. 1 Fig.

Description

[0001] The utility model relates to the field of aviation technology, namely to unmanned aerial surveillance systems, and can be used for remote video and photo probing of the Earth's surface, monitoring man-made and natural objects, relaying radio and optical signals, covert surveillance, etc.

[0002] A hybrid airship is known (US 20180022461, B64D 27 / 24, B64B 1 / 32, B64C 39 / 02, B64B 1 / 34, 01 / 25 / 2018), comprising a frame; rotors driven by electric motors to provide both lift and horizontal movement of said airship frame; at least one battery operatively connected to said electric motors to provide electric power to these electric motors; an electronic controller for controlling said electric motors; and a device for increasing flight time, different from said battery, rotors and electric motors, wherein said device for increasing flight time includes a central elliptical tank filled with a gas that is lighter than air. The rotors are attached to this tank using annular strips.

[0003] The disadvantage is that the central tank, filled with a lighter-than-air gas, is part of the hybrid airship's structural support, to which the rotors are attached via annular straps. Therefore, if the central tank is damaged, the entire hybrid airship structure must be repaired. This makes repairing this device highly labor-intensive.

[0004] An unmanned aerial vehicle is known (RU 240352, B64U 10 / 30, 13.01.2026), selected as a prototype and containing a disk-shaped body made of carbon fiber, electric motors with propellers, a control system connected to said electric motors, and a battery, wherein the body is made hollow and sealed, wherein in the central part of the body there is a cavity closed by a lid, thus forming a sealed compartment containing the control system and the battery, and in the body there are also through channels containing said electric motors with propellers, the internal space of the body contains a gas lighter than air, as well as at least one heating element connected to the control system.

[0005] The main disadvantage of the prototype is the high labor intensity of repairs, due to the fact that the tank for the lighter-than-air gas is also the power part of the unmanned aerial vehicle, and if the tank is damaged, the entire unmanned aerial vehicle must be repaired.

[0006] The objective of the utility model is to reduce the labor intensity of repairing an unmanned aerial vehicle by using a removable, replaceable tank for a lighter-than-air gas that is not part of the power structure of the unmanned aerial vehicle.

[0007] The technical result is achieved in that in an unmanned aerial vehicle containing a disk-shaped body, gas, lighter than air, electric motors with propellers, rigidly fixed to the disk-shaped body, inside which a control system connected to said electric motors and a storage battery are located, a hollow and sealed tank for gas, lighter than air, in the form of a plano-convex lens, the flat base of which is attached to the upper surface of the body with the help of locks, on the convex surface of the tank for gas, lighter than air, a valve is hermetically installed, radial rods are rigidly attached to the lateral surface of the disk-shaped body with their ends, electric motors with propellers are rigidly fixed to the other ends of the rods.

[0008] The unmanned aerial vehicle is explained with a drawing showing its general appearance.

[0009] Disc-shaped body 1 is a rigid, hollow, disc-shaped shell made of carbon fiber (such as carbon, carbon-aramid, etc.). The use of carbon fiber reduces the weight of the structure while providing strength and resistance to external influences (temperature changes, mechanical stress).

[0010] A flat base 4 of a lighter-than-air gas reservoir 5, shaped like a plano-convex lens, is attached to the upper surface 2 of the disc-shaped body 1 using fasteners 3. The flat base 4 is made of carbon fiber. The convex surface 6 of the lighter-than-air gas reservoir 5 is made of polyester material or nylon fabric.

[0011] Tank 5 for gas, lighter than air, is filled with gas - a substance with a molecular weight of less than 28.836 g / mol (for example, helium or hydrogen), which provides part of the lifting force of the unmanned aerial vehicle.

[0012] A valve 7 is hermetically mounted on the convex surface 6 of the tank 5 for lighter-than-air gas. Radial rods 8 are rigidly attached to the side surface of the disk-shaped body 1 with their ends, and electric motors 9 are rigidly fixed to the other ends of the radial rods 8, for example, AXI 2814 / 22, 037 or Racerstar Racing Edition 2306 2700KV or Readytosky 2205-2300 2300KV or Racerstar Racing Edition 2205 2300KV, with propellers 10.

[0013] In the internal cavity of the disk-shaped body 1, there is a control system 11 connected to electric motors 9, and a battery 12, for example, LiPo 4S1300 niAh or 1500 mAh.

[0014] Position 13 indicates the chassis.

[0015] The device operates as follows.

[0016] Through valve 8, tank 5 for lighter-than-air gas is filled with gas—a substance with a molecular weight less than 28.836 g / mol. As a result, the unmanned aerial vehicle experiences an Archimedes' force, which, depending on the volume of tank 5 for lighter-than-air gas and the molecular weight of the gas, fully or partially compensates for the force of gravity acting on the unmanned aerial vehicle.

[0017] Control system 11 connects battery 12 to electric motors 9. This causes propellers 10 to rotate, and the UAV takes off. Further flight of the UAV is controlled by signals from control system 11.

[0018] If lighter-than-air gas tank 5 is damaged or leaks, the unmanned aerial vehicle (UAV) is returned to base, where it is removed from disk-shaped body 1 after unlocking locks 3 and replaced with a serviceable one. If prompt flight mission completion is required, the UAV can be operated without tank 5.

[0019] Full or partial compensation of the gravity force acting on the unmanned aerial vehicle reduces the load on the electric motors 9, which leads to a decrease in energy consumption from the battery 12 and, ultimately, to an increase in the flight duration of the unmanned aerial vehicle.

[0020] In the case of monitoring water bodies, the use of a spherical tank 5 for gas, lighter than air, filled with gas - a substance with a molecular weight of less than 28.836 g / mol, when an unmanned aerial vehicle falls into water, allows the latter to stay afloat.

[0021] As can be seen, the use of an easily removable tank 5 for gas, lighter than air, filled with gas - a substance with a molecular weight of less than 28.836 g / mol, and which is not a power part of the structure of the unmanned aerial vehicle, reduces the labor intensity of its repair.

Claims

An unmanned aerial vehicle comprising a disk-shaped body, lighter-than-air gas, electric motors with propellers rigidly attached to the disk-shaped body, inside which a control system is located, connected to said electric motors, and a storage battery, characterized in that it additionally comprises a hollow and sealed reservoir for lighter-than-air gas, in the form of a plano-convex lens, the flat base of which is attached to the upper surface of the body using locks, a valve is hermetically installed in the convex surface of the reservoir for lighter-than-air gas, radial rods are rigidly attached at their ends to the lateral surface of the disk-shaped body, and electric motors with propellers are rigidly attached to the other ends of the rods.

Images