Novel anti-unmanned aerial vehicle method, anti-unmanned aerial vehicle magnetic powder warhead and anti-unmanned aerial vehicle ammunition

Abstract

The invention relates to the field of anti-unmanned aerial vehicles, and discloses a novel anti-unmanned aerial vehicle method, an anti-unmanned aerial vehicle magnetic powder warhead and an anti-unmanned aerial vehicle ammunition. The magnetic powder enters the brushless motor of the unmanned aerial vehicle through the heat dissipation holes of the brushless motor, the brushless motor is braked or destabilized, and the unmanned aerial vehicle is out of control by damaging the stress balance of the unmanned aerial vehicle. Braking or instability of the brushless motor is caused by the magnetic powder, countering of the unmanned aerial vehicle is achieved by destroying stress balance of the unmanned aerial vehicle, the action mode is novel, the effect is outstanding, the market blank of physical countering of the unmanned aerial vehicle is filled, and countering can be rapidly and efficiently conducted on the unmanned aerial vehicle and the unmanned aerial vehicle group.

Description

Technical Field

[0001] The present invention relates to the field of anti-UAV, and in particular to a novel anti-UAV method, an anti-UAV magnetic powder warhead and anti-UAV ammunition. Background Art

[0002] With the gradual opening of the country's low-altitude flight field, the application of drones has become more and more extensive, but the problems caused by "illegal flying" of drones have also become increasingly prominent. With its miniaturization, intelligence, popularity and diversification, drones have become one of the fastest-growing emerging industries in recent years. With the increasing application of drones, especially consumer drones, various safety accidents have occurred from time to time, and some have even caused serious real harm. The problems in the development and management of civil drones have become increasingly prominent, and the detection, countermeasures and prevention and control management of drones have become a world-class common problem.

[0003] UAV technology has gradually become an important combat equipment in modern warfare, playing an important role in reconnaissance and intelligence collection, precision guidance and strike, close-range defense and maintenance patrol, high-speed raid and rapid response, special operations, etc. With the frequent use of UAV technology in modern warfare, how to effectively prevent and combat the threats brought by UAVs has become a top priority for countries to maintain national security. Therefore, anti-UAV technology urgently needs to be developed and researched.

[0004] At present, based on the ability to detect target drones, the active disposal of anti-drone is divided into hard kill and soft kill. Among them, hard kill uses traditional ammunition shooting, capture, and directed energy strikes as means, including ammunition damage, netting, laser weapon strikes, high-power microwave weapon strikes, etc.; soft kill uses interference as a means, including interference with drone navigation signals, communication signals, communication links, wireless networks, and specific parts. In addition, there are passive defense measures such as smoke screen blinding and camouflage deception for drone reconnaissance or attack. Based on this, the present application provides a new method of physical counter-drone that is different from traditional anti-drone means, which can achieve rapid and efficient counter-attacks against drones and drone swarms. Summary of the invention

[0005] The present invention aims to solve the technical problem that the types of countermeasures against drones in the prior art are not rich enough. To this end, the present invention provides a new anti-drone method based on physical countermeasures against drones, an anti-drone magnetic powder warhead and anti-drone ammunition that are different from traditional anti-drone means, so as to achieve rapid and efficient countermeasures against drones and drone groups.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] On the first aspect, a novel anti-UAV method is provided, which comprises the following steps: throwing magnetic powder at a UAV, and using the gravity and the suction of the UAV rotor to allow the magnetic powder to enter the UAV's brushless motor through the heat dissipation holes of the brushless motor, thereby causing braking or instability of the brushless motor, thereby destroying the force balance of the UAV and causing the UAV to lose control.

[0008] In the second aspect, an anti-UAV magnetic powder warhead for realizing the novel anti-UAV method is provided, wherein the magnetic powder warhead comprises a projectile, a bushing, magnetic powder, a charge and a fuze; the top of the bushing is threadedly connected to the inner cavity of the projectile, and the bottom thereof extends to the bottom of the cavity of the projectile, and a loading cavity is provided between the bottom periphery of the bushing and the projectile, and an open charge cavity is provided in the bushing; the magnetic powder is filled in the loading cavity; the charge is installed in the charge cavity; the fuze is encapsulated in the head of the projectile for detonating the charge; the shells of the projectile, bushing and fuze are all made of non-magnetic materials.

[0009] In some optional embodiments, the bushing is evenly distributed with a plurality of filling holes connecting the filling cavity and the inner cavity of the projectile for filling magnetic powder.

[0010] In some optional embodiments, the bushing is composed of a tubular body with a bottom seal and an annular mounting plate, the annular mounting plate and the tubular body are an integrally formed structure, and a plurality of the filling holes are arranged in a circular array on the annular mounting plate.

[0011] In some optional embodiments, after the magnetic powder is loaded, the loading hole is blocked by a blocking plate.

[0012] In a third aspect, an anti-UAV ammunition is provided, comprising a propellant charge and the magnetic powder warhead, wherein the propellant charge is mounted at the tail of the magnetic powder warhead.

[0013] In some optional embodiments, the propellant charge includes a cartridge, a primer seat, a primer, propellant, a powder fixing paper, a powder fixing ring and a lining plate; the inner cavity of the cartridge is divided into a high-pressure chamber and a low-pressure chamber by a spherical bottom, and the spherical bottom is provided with a plurality of fire transfer holes connecting the high-pressure chamber and the low-pressure chamber; the lining plate is lined in the high-pressure chamber to block the fire transfer holes; the powder fixing ring, powder fixing paper, propellant and primer are installed in the primer seat in sequence from top to bottom; the primer seat is installed in the high-pressure chamber of the cartridge, and the warhead is installed in the low-pressure chamber of the cartridge.

[0014] In some optional embodiments, the cartridge case, primer seat, and charge ring are made of non-magnetic materials, and the lining plate is a copper lining plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention uses magnetic powder to brake or destabilize the brushless motor, and achieves countermeasures against the drone by destroying the force balance of the drone. The mode of action is novel and the effect is outstanding. It fills the market gap of physical countermeasures against drones and can quickly and efficiently counter drones and drone groups.

[0017] 2. Use magnetic powder warheads to detonate in designated areas, so that the magnetic powder is evenly dispersed in the air. The magnetic powder can act on the UAV quickly and effectively, and the magnetic powder warhead has a simple structure and high reliability.

[0018] 3. The bushing designed in the magnetic powder warhead can fix the magnetic powder inside the projectile, which not only ensures that the magnetic powder will not shake in the warhead, but also ensures the hitting accuracy of the warhead. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0020] Figure 1 It is a schematic diagram of the structure of the anti-UAV ammunition provided by the present invention;

[0021] Figure 2 It is a schematic structural diagram of the magnetic powder warhead provided by the present invention;

[0022] Figure 3 is a cross-sectional view of a bushing provided by the present invention;

[0023] Figure 4 It is a top view of the windless fan provided by the present invention.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1—projectile body, 2—bushing, 2.1—tubular body, 2.2—annular mounting plate, 2.3—loading hole, 3—magnetic powder, 4—charge column, 5—fuze, 6—cartridge cartridge, 6.1—spherical cartridge bottom, 6.1.1—fire transfer hole, 7—primer seat, 8—primer, 9—propellant, 10—charge fixing paper, 11—charge fixing ring, 12—lining plate, 100—loading cavity, 200—charge column cavity, 300—high-pressure chamber, 400—low-pressure chamber, a—motor, b—motor, c—motor, d—motor, e—heat dissipation hole. DETAILED DESCRIPTION

[0026] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; the terms "install", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] At present, the commonly used small drones are mostly quad-rotors, hexa-rotors, octa-rotors, etc. Taking a quad-rotor drone as an example, its main structure consists of four motors, four rotors, a frame, a battery, a remote control device, a flight control system, etc. The structural form of the drone is shown in the following figure. Figure 4 When the quad-rotor drone is flying, the lift of the drone is changed by changing the speed of the different rotors, thereby controlling the attitude and position of the quad-rotor drone. The specific motion control is as follows:

[0031] The UAV achieves vertical movement mainly by increasing the output power of the four rotor motors at the same time, which increases the rotor speed and increases the total pulling force of the UAV. When the total pulling force overcomes the gravity of the entire machine, the quad-rotor UAV achieves vertical ascent.

[0032] The UAV completes the pitch motion by changing the speed of motors a and c, maintaining the speed of motors b and d, and generating an unbalanced torque.

[0033] The horizontal movement of a drone is achieved by tilting the drone to a certain degree, so that the rotor pull produces a horizontal component, thus achieving forward and backward movement of the drone.

[0034] According to the structure and working mode of the quadcopter, the normal use of its rotors and motors determines the flight stability of the drone. Since the motors a and c of the quadcopter rotate counterclockwise while the motors b and d rotate clockwise, when the quadcopter is able to fly in a balanced manner, its gyroscopic effect and aerodynamic torque effect are offset. When one of the rotors or motors of the quadcopter fails, the drone will be subjected to unbalanced forces and will roll randomly.

[0035] The brushless motor of the drone is the main core component of the drone. The brushless motor consists of a base, a stator, a rotor, and a permanent magnet. The permanent magnet is located inside the motor and fixed on the rotor, and the stator winding is fixed on the outer shell. Permanent magnets are an important part of brushless motors. Most of the performance parameters of brushless motors are related to magnets, including power, speed, torque, etc. The permanent magnets of brushless motors are usually made of neodymium iron boron, so the permanent magnets of brushless motors are well-deserved "magnet kings". Generally speaking, heat is generated during the operation of the motor. If the heat cannot be dissipated in time, it will affect the service life and safety of the motor. Therefore, many brushless motors will be designed with heat dissipation holes e to ensure the normal operation of the motor. Sometimes the heat dissipation holes e of brushless motors also have the functions of drainage and ventilation.

[0036] Based on this, this embodiment provides a new anti-UAV method, which is: throwing magnetic powder at the UAV, and using the gravity and the suction of the UAV rotor to make the magnetic powder enter the brushless motor of the UAV through the heat dissipation holes of the brushless motor, causing braking or instability to the brushless motor, and destroying the force balance of the UAV, causing the UAV to lose control.

[0037] In a preferred embodiment: an anti-UAV magnetic powder warhead is designed to throw magnetic powder at UAVs. Figure 2 As shown, the magnetic powder warhead includes a projectile 1, a bushing 2, magnetic powder 3, a charge 4 and a fuze 5; the top of the bushing 2 is threadedly connected to the inner cavity of the projectile 1, and the bottom thereof extends to the bottom of the cavity of the projectile 1, and a loading cavity 100 is provided between the bottom periphery of the bushing 2 and the projectile 1, and an open charge cavity 200 is provided in the bushing 2; the magnetic powder 3 is filled in the loading cavity 100; the charge 4 is installed in the charge cavity 200; the fuze 5 is encapsulated in the head of the projectile 1, and is used to detonate the charge 4; the shells of the projectile 1, bushing 2 and fuze 5 are all made of non-magnetic materials, preferably made of aluminum alloy materials.

[0038] Working principle: After the magnetic powder warhead is launched to the designated area by the launcher, the fuze outputs a detonation through the charge in the detonating bushing. The gunpowder gas generated by the explosion of the charge disperses the magnetic powder in the warhead evenly in the air. Under the action of gravity and the suction of the UAV's rotor, the magnetic powder enters the brushless motor of the UAV, causing the motor to brake or become unstable, thereby achieving the effect of destroying the UAV target.

[0039] In a preferred embodiment, as shown in the attached Figure 3 As shown, the bushing 2 is composed of a tubular body 2.1 with a sealed bottom and an annular mounting plate 2.2, and the annular mounting plate 2.2 and the tubular body 2.1 are an integrally formed structure. The bushing 2 is fixed by the annular mounting plate 2.2 and the body 1 through a threaded connection, and the bottom of the bushing 2 is in contact with the cavity bottom of the body 1, which can ensure the stability of the bushing.

[0040] In a preferred embodiment, the bushing 2 is evenly distributed with multiple filling holes 2.3, preferably two filling holes, which are connected to the filling cavity 200 and the inner cavity of the projectile 1, for filling magnetic powder, and the multiple filling holes 2.3 are arranged in a circular array on the annular mounting plate 2.2. Specifically, before filling the magnetic powder, the bushing is first fixed in the projectile with threads, and then the magnetic powder is poured into the projectile through the two filling holes on the bushing. When the magnetic powder is filled, the small hole is blocked (it can be blocked with a blocking plate), so that the magnetic powder can be fixed in the projectile, which not only ensures that the magnetic powder will not shake in the warhead, but also ensures the accuracy of the projectile.

[0041] In a preferred embodiment, an anti-UAV ammunition is provided, as shown in the attached Figure 1 As shown, it includes a propellant charge and the magnetic powder warhead, and the propellant charge is assembled at the tail of the magnetic powder warhead.

[0042] Preferably, the propellant charge includes a cartridge 6, a primer seat 7, a primer 8, a propellant 9, a solid powder paper 10, a solid powder ring 11 and a lining plate 12; the inner cavity of the cartridge 6 is divided into a high-pressure chamber 300 and a low-pressure chamber 400 by a spherical bottom 6.1, and a plurality of fire transfer holes 6.1.1 connecting the high-pressure chamber and the low-pressure chamber are provided on the spherical bottom 6.1; the lining plate 12 is lined in the high-pressure chamber 300 to block the fire transfer holes 6.1.1; the solid powder ring 11, the solid powder paper 10, the propellant 9 and the primer 8 are sequentially installed in the primer seat 7 from top to bottom; the primer seat 7 is installed in the high-pressure chamber 300 of the cartridge 6, and the warhead is installed in the low-pressure chamber 400 of the cartridge 6. Preferably, the cartridge 6, the primer seat 7 and the solid powder ring 11 are made of non-magnetic materials, preferably made of aluminum alloy, and the lining plate 12 is a copper lining plate.

[0043] The propellant charge designed in this embodiment adopts the high-low pressure launching principle. The launcher fires the primer to ignite the propellant. When the warhead is launched and reaches the designated area, the fuze outputs a detonation to detonate the charge in the bushing. The gunpowder gas generated by the explosion of the charge evenly disperses the magnetic powder in the projectile in the air, thereby achieving even distribution of the magnetic powder to the UAV.

[0044] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A new anti-UAV method, characterized by: By throwing magnetic powder at the drone, under the action of gravity and the suction of the drone's rotor, the magnetic powder enters the drone's brushless motor through the motor's heat dissipation holes, causing the brushless motor to brake or become unstable, and destroying the drone's force balance, causing the drone to lose control.

2. An anti-UAV magnetic powder warhead, characterized in that: Used to implement the anti-UAV method described in claim 1; the magnetic powder warhead includes a projectile, a bushing, magnetic powder, a charge and a fuze; the top of the bushing is threadedly connected to the inner cavity of the projectile, and its bottom extends to the bottom of the cavity of the projectile, and a loading cavity is provided between the bottom periphery of the bushing and the projectile, and an open charge cavity is provided in the bushing; the magnetic powder is filled in the loading cavity; the charge is installed in the charge cavity; the fuze is encapsulated in the head of the projectile for detonating the charge; the projectile, bushing and fuze shells are all made of non-magnetic materials.

3. The anti-UAV magnetic powder warhead according to claim 2 is characterized in that: The bushing is also evenly provided with a plurality of filling holes communicating with the filling cavity and the inner cavity of the bomb body for filling magnetic powder.

4. The anti-UAV magnetic powder warhead according to claim 3 is characterized in that: The bushing is composed of a tubular body with a sealed bottom and an annular mounting plate. The annular mounting plate and the tubular body are an integrally formed structure, and a plurality of the filling holes are arranged in a circular array on the annular mounting plate.

5. The anti-UAV magnetic powder warhead according to claim 3 is characterized by: After the magnetic powder is loaded, the loading hole is blocked by a blocking plate. 6.An anti-UAV ammunition, characterized in that: It comprises a propelling charge and the magnetic powder warhead according to any one of claims 2 to 5, wherein the propelling charge is mounted at the tail of the magnetic powder warhead.

7. The anti-UAV ammunition according to claim 6, characterized in that: The propellant charge includes a cartridge case, a primer seat, a primer, propellant, a powder fixing paper, a powder fixing ring and a lining plate; the inner cavity of the cartridge case is divided into a high-pressure chamber and a low-pressure chamber by a spherical bottom, and a plurality of fire transfer holes connecting the high-pressure chamber and the low-pressure chamber are provided on the spherical bottom; the lining plate is lined in the high-pressure chamber and is used to block the fire transfer holes; the powder fixing ring, powder fixing paper, propellant and primer are installed in the primer seat in sequence from top to bottom; the primer seat is installed in the high-pressure chamber of the cartridge case, and the warhead is installed in the low-pressure chamber of the cartridge case.

8. The anti-UAV ammunition according to claim 7, characterized in that: The cartridge case, primer seat and charge fixing ring are made of non-magnetic materials, and the lining plate is a copper lining plate.

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