High-endurance high-load unmanned aerial vehicle

Abstract

The utility model provides a high-endurance and high-load unmanned aerial vehicle which comprises an accompanying power supply unit which comprises a generator, a frequency converter, a transformer and a magnetic engine. The magnetic engine comprises a non-magnetic cylinder body, a magnetic piston which is arranged in the cylinder body in a manner of moving up and down, a driving magnet which is fixedly arranged above the cylinder body, a movable magnetic conductive plate which can block magnetic lines of force, and a driving mechanism, so that the magnetic piston is rotationally connected with a crankshaft of which the end part is connected with an inertia flywheel through a connecting rod; the crankshaft is coaxially connected with a rotor of the generator, the driving magnet and the magnetic piston are both strong magnets, the magnetic poles of the opposite sides of the driving magnet and the magnetic piston are the same, the projections of the driving magnet and the magnetic piston in the vertical direction coincide, and whether repulsive force is formed or not can be controlled through moving-in and moving-out of the magnetic conductive plate between the magnetic piston and the driving magnet. And the inertia flywheel is matched to drive the magnetic piston to move up and down, so that the generator is driven to generate electricity, endurance and loading capacity are high, and the utilization efficiency of the loading capacity is high.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle technology, specifically to a high-endurance, high-payload unmanned aerial vehicle. Background Technology

[0002] Unmanned aerial vehicles, also known as drones, are unmanned aircraft controlled by radio remote control equipment and their own program control devices. They are widely used in aerial photography, agriculture, plant protection, miniature selfies, express delivery, disaster relief, surveying and mapping, news reporting, power line inspection, disaster relief, and film and television shooting.

[0003] Most existing unmanned aerial vehicles (UAVs) achieve flight by electrically driving the propellers, with their power coming from the batteries carried by the UAVs themselves. For example, Chinese patents CN206031745U and CN203601572U disclose such UAVs. However, due to the limitations of battery specific capacity, the range and load capacity of these UAVs are negatively correlated, making it difficult to achieve a balance between range and load capacity.

[0004] To address this issue, unmanned aerial vehicles (UAVs) that use petrochemical fuels, solar energy, and wind energy for on-the-go battery charging have emerged on the market. For example, Chinese patents CN105539828A and CN109319155A disclose UAVs using gasoline or diesel internal combustion engines for on-the-go charging. However, this type of on-the-go charging involves the conversion of chemical energy, thermal energy, and kinetic energy, resulting in limited energy conversion efficiency (below 50%) and significant energy waste. Furthermore, the payload of these UAVs is highly correlated with fuel load, making it difficult to balance range and payload capacity. During flight, as fuel... Consumption causes a shift in the center of gravity of the unmanned aerial vehicle (UAV), requiring additional balancing operations from the flight control system. Although fuel consumption increases payload capacity, this increased payload capacity is difficult to utilize during flight, resulting in low payload efficiency. Furthermore, Chinese patents CN109873482A and CN104608914B disclose UAVs that use solar or wind power for onboard charging. However, this type of onboard charging is significantly affected by weather, sunlight, and wind direction, making it difficult to achieve high stability and continuity, resulting in poor practical performance. Utility Model Content

[0005] The main purpose of this invention is to overcome one or more defects in the prior art and provide a high-endurance, high-payload unmanned aerial vehicle.

[0006] To achieve the above objectives, the technical solution provided by this utility model is: a body;

[0007] The wings are arranged around the fuselage and extend horizontally outward. The ends of the wings are provided with rotatable blades and electric motors for driving the blades to rotate.

[0008] A battery pack is disposed within the body of the machine. The battery pack includes a first battery and a second battery, wherein the first battery is used to supply power to the motor.

[0009] A control module is disposed within the machine body, and the control module is used to control the speed and direction of the electric motor;

[0010] A load unit, the load unit being connected to the center of the bottom of the body;

[0011] Support legs, which are connected to the bottom of the machine body, and there are multiple support legs evenly distributed around the load unit;

[0012] The accompanying power supply unit is used to charge the battery pack and also to meet other power needs such as display and communication. The accompanying power supply unit includes a generator, a frequency converter, and a transformer.

[0013] The high-endurance, high-payload unmanned aerial vehicle also includes a magnetic engine. The power generated by the magnetic engine includes a first power and a second power. The first power is used to drive the propeller to rotate, and the second power is used to drive the generator to generate electricity.

[0014] The magnetic engine includes a non-magnetic cylinder, a magnetic piston that is movable up and down inside the cylinder, a drive magnet that is fixedly mounted above the cylinder, a movable magnetic guide plate that can block magnetic lines of force, and a drive mechanism.

[0015] The magnetic piston is rotatably connected to a crankshaft with an inertial flywheel at one end via a connecting rod. The crankshaft outputs the first power and the second power. The crankshaft is coaxially connected to the rotor of the generator. The crankshaft is also connected to the rotating shaft of the blades via a transmission mechanism and a clutch mechanism. The driving magnet and the magnetic piston are both strong magnets with the same magnetic poles on opposite sides. The projections of the driving magnet and the magnetic piston in the vertical direction coincide. The magnetic guide plate has a first working position where it moves into the space between the driving magnet and the cylinder and a second working position where it moves out of the space between the driving magnet and the cylinder. When the magnetic guide plate is in the first working position, the magnetic piston and the driving magnet... More than 90% of the magnetic field lines between the bodies are blocked by the magnetic guide plate. The repulsive force between the magnetic piston and the driving magnet is much smaller than the driving force applied to the magnetic piston by the inertial flywheel, allowing the magnetic piston to move upward under the drive of the inertial flywheel. When the magnetic guide plate is in the second working position, the repulsive force between the magnetic piston and the driving magnet is much larger than the driving force applied to the magnetic piston by the inertial flywheel, allowing the magnetic piston to move downward under the action of the repulsive force. The driving mechanism is used to drive the magnetic guide plate to reciprocate between the first working position and the second working position, and the second battery is used to provide the power required by the driving mechanism.

[0016] The drive mechanism is initially powered by the second battery. When the drive mechanism moves the magnetic plate, the magnetic piston begins its reciprocating motion. Therefore, the power required by the drive mechanism later comes from the generator. Using a small amount of electricity to drive the magnetic plate results in kinetic energy far exceeding the driving electrical energy, allowing the magnetic engine to operate continuously for a longer period.

[0017] Preferably, the magnetic plate includes a magnetic intermediate layer, a group of magnetic poles disposed on the upper and lower surfaces of the magnetic intermediate layer, and a non-magnetic outer shell for wrapping the group of magnetic poles on the upper and lower surfaces of the magnetic intermediate layer. The magnetic poles of the magnetic intermediate layer are opposite to the magnetic poles of the magnetic piston and the driving magnet on the opposite side, or have a material that can be magnetically attracted. The magnetic intermediate layer is composed of a plurality of N pole and a plurality of S pole magnets distributed in proportion on the same plane. The magnetic intermediate layer has opposite polarity attraction on the opposite side of the magnetic piston and the driving magnet, and at the same time, there is partial repulsion of the same polarity to reduce the energy consumption consumed by the movement of the magnetic plate.

[0018] More preferably, the magnetic pole group is composed of a plurality of N-pole and S-pole magnets arranged in proportion.

[0019] Preferably, the battery pack has a discharge positive terminal, a discharge negative terminal, a charging positive terminal, and a charging negative terminal; the motor and the control module are connected in series between the discharge positive terminal and the discharge negative terminal; and the generator, the frequency converter, and the transformer are connected in series between the charging positive terminal and the charging negative terminal.

[0020] More preferably, the charging negative electrode and the discharging negative electrode are the same electrode.

[0021] Preferably, the drive mechanism includes a driver and a drive power source, the driver includes a drive cylinder and a drive motor, and the drive power source is used to provide the power required for the driver to operate.

[0022] More preferably, the accompanying power supply unit is also used to charge the drive power supply.

[0023] Preferably, the load unit includes audio and video sensors.

[0024] Preferably, the electric motor is located above the wing tip, and the output axis of the electric motor extends upward and connects to the center of the blade.

[0025] Preferably, the upper end of the support leg extends outward and downward at an angle, and the lower end extends downward and vertically, forming a figure-eight support around the load unit.

[0026] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0027] This utility model provides a high-endurance, high-payload unmanned aerial vehicle (UAV), comprising a fuselage, wings equipped with propellers and electric motors, a battery pack for supplying power to the electric motors, a control module for controlling the speed and direction of the electric motors, a load unit connected to the center of the fuselage bottom, support feet connected to the bottom of the fuselage and evenly distributed around the load unit, and a portable power supply unit for charging the battery pack. The portable power supply unit includes a generator, a frequency converter, a transformer, and a magnetic engine. The magnetic engine includes a non-magnetic cylinder, a magnetic piston movably mounted inside the cylinder, a drive magnet fixed above the cylinder, a movable magnetic guide plate capable of blocking magnetic field lines, and a drive mechanism. The magnetic piston is rotatably connected to a crankshaft with an inertial flywheel at its end via a connecting rod, causing the crankshaft to rotate in relation to the generator. The coaxial connection ensures that both the driving magnet and the magnetic piston are strong magnets with identical magnetic poles on opposite sides, aligning their vertical projections. The presence or absence of repulsive force can be controlled by moving a magnetic guide plate between the magnetic piston and the driving magnet. Combined with an inertial flywheel, this drives the magnetic piston up and down, thereby powering the generator. Under the same range, this significantly reduces the battery pack's weight, increasing load capacity. The onboard charging method, directly converting magnetic energy into kinetic energy, boasts high conversion efficiency, eliminates fuel loading and consumption, and maintains a relatively constant center of gravity during flight. The flight control system is simple and stable, with high load capacity utilization. Onboard charging is unaffected by external environmental factors, achieving high stability and continuity, resulting in excellent practical performance. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.

[0029] Figure 2 yes Figure 1 A schematic diagram of the structure of the magnetic engine and drive mechanism.

[0030] Figure 3 yes Figure 1 A schematic diagram of the circuit connections at the battery pack, generator, and motor.

[0031] Figure 4 This is a schematic diagram of the circuit connection of the battery pack, generator, and motor in another embodiment of this utility model.

[0032] The components are as follows: 10. Airframe; 20. Wing; 21. Propeller blade; 22. Electric motor; 221. Output shaft; 30. Battery pack; 31. Discharge positive terminal; 32. Discharge negative terminal; 33. Charging positive terminal; 34. Charging negative terminal; 40. Control module; 50. Load unit; 60. Support leg; 70. Traveling power supply unit; 71. Generator; 72. Frequency converter; 73. Transformer; 74. Magnetic engine; 741. Cylinder block; 742. Magnetic piston; 743. Drive magnet; 744. Magnetic guide plate; 7441. Magnetic intermediate layer; 7442. Repulsive magnet; 7443. Non-magnetic outer shell; 745. Drive mechanism; 7451. Driver; 7452. Drive power supply; 751. Connecting rod; 752. Crankshaft; 753. Inertia flywheel. Detailed Implementation

[0033] The up-down direction described in this utility model is... Figure 2 The up and down directions in the middle.

[0034] like Figures 1 to 3As shown, the high-endurance, high-payload unmanned aerial vehicle (UAV) provided by this utility model includes: a fuselage 10, wings 20, a battery pack 30, a control module 40, a load unit 50, support feet 60, and a power supply unit 70. The wings 20 are arranged around the fuselage 10 and extend horizontally outwards. The outer ends of the wings 20 are equipped with rotatable propeller blades 21 and motors 22 for driving the propeller blades 21. The motors 22 are located above the outer ends of the wings 20, and their output shafts 221 extend upwards and connect to the center of the propeller blades 21. When the motors 22 rotate, they drive the propeller blades 21 to rotate, providing lift for the UAV. The battery pack 30 is located inside the fuselage 10 and supplies power to the motors 22. The control module... The control module 40 is also located inside the body 10 and close to the battery pack 30. The control module 40 is used to control the speed and direction of the motor 22. The load unit 50 is connected to the bottom center of the body 10. The support legs 60 are connected to the bottom of the body 10. There are multiple support legs 60, which are evenly distributed around the load unit 50. The upper end of the support leg 60 extends outward and downward at an angle, and the lower end extends downward and vertically, forming a figure-eight support around the load unit 50 to improve stability. The lowest point of the support leg 60 is lower than the lowest point of the load unit 50. The accompanying power supply unit 70 is used to charge the battery pack 30 and provide power for other electrical devices such as displays and communication devices. Specifically, the accompanying power supply unit 70 includes a generator 71, a frequency converter 72, a transformer 73, and a magnetic motor 74. The magnetic engine 74 is used to drive the generator 71 to generate electricity. The magnetic engine 74 includes a non-magnetic cylinder 741, a magnetic piston 742 that is movably disposed within the cylinder 741, a drive magnet 743 fixedly disposed above the cylinder 741, a movable magnetic guide plate 744 that can block magnetic lines of force, and a drive mechanism 745. The magnetic piston 742 is rotatably connected to a crankshaft 752 with an inertial flywheel 753 connected to its end via a connecting rod 751. The crankshaft 752 is coaxially connected to the rotor of the generator 71 (the rotation axis of the crankshaft 752 coincides with the rotation axis of the rotor of the generator 71). Both the drive magnet 743 and the magnetic piston 742 are strong magnets (neodymium magnets) and have the same magnetic poles on opposite sides. The drive magnet 743 and the magnetic piston 742 are located on the upper... The downward projections coincide, and the magnetic plate 744 can be easily moved into the first working position between the drive magnet 743 and the cylinder 741 and the second working position from the drive magnet 743 and the cylinder 741 with low force. When the magnetic plate 744 is in the first working position, the repulsive force between the magnetic piston 742 and the drive magnet 743 is minimal, and the magnetic piston 742 can move upward under the drive of the inertial flywheel 753. When the magnetic plate 744 is in the second working position, the repulsive force between the magnetic piston 742 and the drive magnet 743 is formed, and the magnetic piston 742 can move downward suddenly under the action of this repulsive force. Only by utilizing this high burst force similar to that generated instantaneously when a gasoline engine is ignited can the crankshaft and main shaft have sufficient power.The drive mechanism 745 is used to drive the magnetic plate 744 to reciprocate between the first working position and the second working position, so that the magnetic piston 742 can move up and down, thereby driving the rotor of the generator 71 to rotate and generate electricity.

[0035] The advantage of this setting is that:

[0036] 1. With the same range, the weight of the battery pack can be significantly reduced to increase load capacity.

[0037] 2. The portable charging method, which directly converts magnetic energy into kinetic energy, has high conversion efficiency, low waste, and high energy utilization.

[0038] 3. It does not involve fuel loading and consumption. The center of gravity of the unmanned aerial vehicle remains basically unchanged during flight. The flight control system is simple and stable, and the utilization efficiency of load force is high.

[0039] 4. The portable charging is unaffected by weather or external environment, achieving high stability and continuity, and providing good practical performance.

[0040] In this embodiment, the magnetic plate 744 includes a magnetic intermediate layer 7441, a magnetic pole group disposed on the upper and lower surfaces of the magnetic intermediate layer 7441, and a non-magnetic outer shell 7443 for wrapping the magnetic pole group on the upper and lower surfaces of the magnetic intermediate layer 7441. The magnetic pole group is composed of a plurality of repulsive magnets 7442. The magnetic poles on the upper and lower surfaces of the magnetic intermediate layer 7441 are different from the magnetic poles on the opposite side of the magnetic piston 742 and the driving magnet 743. The magnetic poles of the magnetic pole group (repulsive magnets 7442) on the surface away from the magnetic intermediate layer 7441 are the same as the magnetic poles on the opposite side of the magnetic piston 742 and the driving magnet 743.

[0041] In this embodiment, the battery pack 30 has a discharge positive electrode 31, a discharge negative electrode 32, a charging positive electrode 33, and a charging negative electrode 34. The motor 22 and the control module 40 are connected in series between the discharge positive electrode 31 and the discharge negative electrode 32. The generator 71, the frequency converter 72, and the transformer 73 are connected in series between the charging positive electrode 33 and the charging negative electrode 34.

[0042] In this embodiment, the drive mechanism 745 includes a driver 7451 and a drive power supply 7452. The driver 7451 is a drive electric cylinder, and the drive power supply 7452 is used to provide the power required for the driver 7451 to operate.

[0043] In this embodiment, the load unit 50 includes audio and video sensors. Depending on the task being performed, the load unit 50 may also include a sprayer for spraying fire extinguishing agents and chemicals, a small crane for lifting heavy objects, etc.

[0044] In another embodiment, such as Figure 4 As shown, the charging negative electrode 34 and the discharging negative electrode 32 are the same electrode.

[0045] In another embodiment, the accompanying power supply unit 70 is also used to charge the drive power supply 7452.

[0046] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-endurance, high-payload unmanned aerial vehicle, comprising: Organism; The wings are arranged around the fuselage and extend horizontally outward. The ends of the wings are provided with rotatable blades and electric motors for driving the blades to rotate. A battery pack is disposed within the body of the machine. The battery pack includes a first battery and a second battery, wherein the first battery is used to supply power to the motor. A control module is disposed within the machine body, and the control module is used to control the speed and direction of the electric motor; A load unit, the load unit being connected to the center of the bottom of the body; Support legs, which are connected to the bottom of the machine body, and there are multiple support legs evenly distributed around the load unit; A portable power supply unit is used to charge the battery pack. The portable power supply unit includes a generator, a frequency converter, and a transformer. Its features are: The high-endurance, high-payload unmanned aerial vehicle also includes a magnetic engine. The power generated by the magnetic engine includes a first power and a second power. The first power is used to drive the propeller to rotate, and the second power is used to drive the generator to generate electricity. The magnetic engine includes a non-magnetic cylinder, a magnetic piston that can be moved up and down inside the cylinder, a drive magnet that is fixedly disposed above the cylinder, a movable magnetic guide plate that can block magnetic lines of force, and a drive mechanism. The magnetic piston is rotatably connected to a crankshaft with an inertial flywheel at one end via a connecting rod. The crankshaft outputs the first power and the second power. Both the driving magnet and the magnetic piston are strong magnets with identical magnetic poles on opposite sides. The projections of the driving magnet and the magnetic piston in the vertical direction coincide. The magnetic guide plate has a first working position where it moves between the driving magnet and the cylinder, and a second working position where it moves out of the space between the driving magnet and the cylinder. When the magnetic guide plate is in the first working position, more than 90% of the magnetic lines of force between the magnetic piston and the driving magnet are blocked by the magnetic guide plate. The repulsive force between the magnetic piston and the driving magnet is much smaller than the driving force exerted on the magnetic piston by the inertial flywheel, allowing the magnetic piston to move upward under the drive of the inertial flywheel. When the magnetic plate is in the second working position, the repulsive force between the magnetic piston and the driving magnet is much larger than the driving force exerted on the magnetic piston by the inertial flywheel, allowing the magnetic piston to move downward under the action of the repulsive force. The driving mechanism is used to drive the magnetic plate to reciprocate between the first working position and the second working position, and the second battery is used to provide the power required by the driving mechanism.

2. The high-endurance, high-payload unmanned aerial vehicle according to claim 1, characterized in that: The magnetic plate includes a magnetic intermediate layer, a group of magnetic poles disposed on the upper and lower surfaces of the magnetic intermediate layer, and a non-magnetic outer shell for wrapping the group of magnetic poles on the upper and lower surfaces of the magnetic intermediate layer. The magnetic intermediate layer is composed of a plurality of N pole and a plurality of S pole magnets distributed in proportion on the same plane. The magnetic piston and the driving magnet in the magnetic intermediate layer have opposite polarity attraction on their opposite sides.

3. The high-endurance, high-payload unmanned aerial vehicle according to claim 2, characterized in that: The magnetic pole group is composed of a plurality of N-pole and S-pole magnets arranged in proportion.

4. The high-endurance, high-payload unmanned aerial vehicle according to claim 1, characterized in that: The battery pack has a discharge positive terminal, a discharge negative terminal, a charging positive terminal, and a charging negative terminal. The motor and the control module are connected in series between the discharge positive terminal and the discharge negative terminal. The generator, the frequency converter, and the transformer are connected in series between the charging positive terminal and the charging negative terminal.

5. The high-endurance, high-payload unmanned aerial vehicle according to claim 4, characterized in that: The charging negative electrode and the discharging negative electrode are the same electrode.

6. The high-endurance, high-payload unmanned aerial vehicle according to claim 1, characterized in that: The drive mechanism includes a driver and a drive power source. The driver includes a drive cylinder and a drive motor. The drive power source is used to provide the power required for the driver to operate.

7. The high-endurance, high-payload unmanned aerial vehicle according to claim 6, characterized in that: The accompanying power supply unit is also used to charge the drive power supply.

8. The high-endurance, high-payload unmanned aerial vehicle according to claim 1, characterized in that: The load unit includes audio and video sensors.

9. The high-endurance, high-payload unmanned aerial vehicle according to claim 1, characterized in that: The electric motor is located above the wing tip, and its output axis extends upward and connects to the center of the blade.

10. The high-endurance, high-payload unmanned aerial vehicle according to claim 1, characterized in that: The upper end of the support leg extends outward and downward at an angle, while the lower end extends downward and vertically, forming a figure-eight support around the load unit.

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