Flexible organic solar multi-rotor unmanned aerial vehicle

By combining flexible organic solar panels with multi-rotor drones, the problems of short flight time and limited payload of traditional drones have been solved, realizing agricultural plant protection drones with long flight time and high payload, suitable for multiple application scenarios.

CN224117546UActive Publication Date: 2026-04-14NANJING TECH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING TECH UNIV
Filing Date
2025-04-08
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Traditional agricultural plant protection drones have short flight times and limited payload capacity. Traditional solar cells or batteries are large, heavy, and difficult to customize, which cannot meet the actual needs of agricultural drones.

Method used

The system combines flexible organic solar panels with a multi-rotor drone. The flexible organic solar panels are detachable and can be extended and folded onto the upper surface of the frame. The flexible organic solar panels provide auxiliary power, improving the endurance and load capacity.

Benefits of technology

It improves the drone's endurance and payload capacity, making it highly flexible, portable, and adaptable to various scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a flexible organic solar multi-rotor unmanned aerial vehicle, and belongs to the technical field of multi-rotor unmanned aerial vehicles. The multi-rotor power mechanism is mounted on the rack; and the flexible organic solar module is detachably arranged on the upper surface of the middle part of the rack in a stretching and folding manner, and is connected with the multi-rotor power mechanism. According to the flexible organic solar multi-rotor unmanned aerial vehicle disclosed by the utility model, the detachable and foldable flexible organic solar component is mounted, so that the flexible organic solar multi-rotor unmanned aerial vehicle has remarkable advantages in the aspects of cruising ability, light weight, flexibility, portability, adaptability and the like.
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Description

Technical Field

[0001] This utility model belongs to the field of multi-rotor drone technology, specifically relating to a flexible organic solar-powered multi-rotor drone. Background Technology

[0002] With the rapid development of drone technology, agricultural plant protection drones have been widely used in agricultural production. However, traditional agricultural plant protection drones suffer from problems such as short flight time and limited payload capacity, which restrict their operating range and efficiency. Although traditional solar cells or batteries can provide additional power for drones, they are bulky, heavy, and difficult to customize according to the shape of the drone, thus failing to meet the actual needs of agricultural drones.

[0003] Significant progress has been made in organic solar cell technology in recent years. Organic solar cells offer advantages such as light weight, high flexibility, and strong customizability. Furthermore, the photoelectric conversion efficiency of organic solar cells is continuously improving, making them promising for applications in power supply for unmanned aerial vehicles (UAVs). Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a flexible organic solar-powered multi-rotor drone that can effectively improve its endurance or payload capacity, and is highly flexible, portable and practical.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] This utility model provides a flexible organic solar-powered multi-rotor drone, comprising:

[0007] frame;

[0008] A multi-rotor power unit is mounted on the frame;

[0009] A flexible organic solar panel, detachable and extendable, is mounted on the upper surface of the middle part of the frame and connected to the multi-rotor power mechanism.

[0010] Furthermore, the frame includes a body and at least four arms, which extend outward at even intervals along the circumference with the body as the center.

[0011] The multi-rotor power mechanism includes at least four rotors driven by a power drive mechanism, the rotors being mounted on the free end of the arm and driven by the power drive mechanism.

[0012] Furthermore, the multi-rotor power mechanism also includes at least one set of batteries disposed within the fuselage, and the batteries are connected to the power drive mechanism.

[0013] Furthermore, the flexible organic solar panel is connected to the battery and / or the power drive mechanism.

[0014] Furthermore, the flexible organic solar module includes an organic solar film and an umbrella-shaped folded frame, with the organic solar film fixedly disposed on the folded frame.

[0015] Furthermore, a sleeve is hinged at the center of the folding frame, and the sleeve is hinged to each frame rod along the circumference. The sleeve is fitted onto a rotating connecting shaft that can rotate freely relative to the frame. The outer side of the rotating connecting shaft is provided with a handle for screwing, and the inner side is provided with an external threaded connection part for connecting to the pre-reserved connection hole on the upper surface of the frame.

[0016] Furthermore, the outer edge of the folding frame is provided with at least four fastening parts that are evenly spaced circumferentially and detachably connected to the upper surface of the frame.

[0017] Furthermore, the upper surface of the frame is provided with a plurality of snap fasteners that are matched and connected to the snap fastener.

[0018] Furthermore, the upper surface of the frame is provided with a conical umbrella-shaped support platform that matches the flexible organic solar panel, and the tilt angle of the support platform is 5 to 10 degrees.

[0019] Furthermore, the flexible organic solar panel is also connected to sensors or lighting fixtures mounted on the rack.

[0020] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model adopts a flexible organic solar multi-rotor drone, which uses a flexible organic solar panel that can be detached and extended and folded and is set on the upper surface of the middle part of the frame. It utilizes the solar panel to assist in the flight, reduce the weight of the drone body, and is easy to assemble and adjust due to its detachability and folding. It is highly flexible and portable. Attached Figure Description

[0021] Figure 1 This is a perspective view of a flexible organic solar-powered multi-rotor drone provided according to an embodiment of the present invention.

[0022] Figure 2 This is a cross-sectional view of a flexible organic solar-powered multi-rotor drone provided according to an embodiment of the present invention.

[0023] Figure 3 This is a perspective view of a flexible organic solar energy module provided according to an embodiment of the present utility model.

[0024] Figure 4 This is a cross-sectional view of a flexible organic solar module provided according to an embodiment of the present utility model.

[0025] Figure 5 This is a bottom view of a flexible organic solar module according to an embodiment of the present invention.

[0026] Figure 6 This is a perspective view of a folding frame provided according to an embodiment of the present utility model.

[0027] Figure 7 This is a perspective view of a rotary connecting shaft provided according to an embodiment of the present utility model.

[0028] In the picture:

[0029] 1. Fuselage; 2. Arm; 3. Rotor; 4. Solar panel; 5. Organic solar film; 6. Folding frame; 7. Rotary connecting shaft; 8. Handle; 9. External threaded connection; 10. Reserved connection hole; 11. Fastening part; 12. Buckle seat; 13. Support platform; 14. Sleeve. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] like Figure 1 and Figure 2 As shown in the figure, this utility model provides a flexible organic solar multi-rotor drone, including a frame, a multi-rotor power mechanism and a flexible organic solar module 4.

[0034] In some embodiments, the frame adopts an "X" shape or other centrally radial frame form to facilitate the mounting of rotors at the free ends of the arms. The frame material can be carbon fiber or aluminum alloy, balancing lightweight and strength.

[0035] In some embodiments, the frame includes a fuselage 1 and at least four arms 2, such as four X-shaped arms in a quadcopter drone. The arms 2 extend outward at uniform intervals around the fuselage 1 in the circumferential direction. The arms 2 can be folding or fixed arms according to specific application requirements to meet the performance requirements of arms in various scenarios.

[0036] In some embodiments, the multi-rotor power mechanism is installed inside the frame. Specifically, the multi-rotor power mechanism includes at least four rotors 3 driven by a power drive mechanism. The rotors 3 are mounted on the free end of the arm 2 and are driven by the power drive mechanism. The rotors 3 are typically two-bladed or three-bladed propellers; in this embodiment, a two-bladed propeller structure is preferred.

[0037] In some embodiments, the power drive mechanism includes a motor, an electronic speed controller (ESC), etc. The motor drives the propeller to rotate and generate lift, while the ESC controls the motor speed. For example, the kV value of a brushless motor determines its speed; for instance, 2300 kV is suitable for small models. The ESC supports the BLheli protocol, and its current must be matched to the motor; for example, a 30A ESC is used with a 2205 motor. This embodiment of the invention does not improve or innovate the power drive mechanism; existing conventional rotor drive system equipment is sufficient.

[0038] In this embodiment, the multi-rotor power mechanism may further include at least one set of batteries disposed within the fuselage 1, which are connected to the power drive mechanism to ensure the power needs of the drone. The batteries, as the main power source for the multi-rotor drone, can be combined with flexible organic solar panels to better suit various scenarios and endurance requirements.

[0039] In this embodiment, the multi-rotor drone can be a quadcopter, hexacopter, octacopter, etc. The main structure of each drone is similar, with the only difference being the design of the arms and rotors. At least one flexible organic solar panel 4 can be detachably installed on the fuselage.

[0040] like Figure 3 , Figure 4 and Figure 5 The flexible organic solar module 4 is detachable and extendable and foldable, and is located on the upper surface of the middle part of the frame.

[0041] In some embodiments, the upper surface of the frame is provided with a conical umbrella-shaped support platform that matches the flexible organic solar panel 4. The tilt angle of the support platform is preferably 5 to 10 degrees; an excessively large angle may affect sunlight collection during flight. The flexible organic solar panel 4 can be matched to the shape and size of the support platform, and can also be disassembled and replaced with a flexible organic solar panel 4 of a matching size according to different drone models. In addition, by disassembling the flexible organic solar panel 4, the overall weight of the drone can be reduced when auxiliary power supply is not required, providing high flexibility in disassembly and assembly.

[0042] In this embodiment, the flexible organic solar panel 4 is connected to a battery and / or a power drive mechanism. This connection allows for both charging the battery and providing auxiliary power to the power drive mechanism, thereby improving the endurance of the multi-rotor drone.

[0043] In this embodiment, the flexible organic solar module 4 includes an organic solar film 5 and an umbrella-shaped folding frame 6, with the organic solar film 5 fixedly mounted on the folding frame 6. The organic solar film 5 can be folded and unfolded with the support of the folding frame 6.

[0044] In some embodiments, the organic solar film 5 may adopt a planar shape structure such as a circle or a polygon.

[0045] Organic solar film 5 can be made of ultralight gallium arsenide thin film solar cells, flexible quasi-two-dimensional perovskite solar cells, organic photovoltaic (OPV) films or ultrathin peroxide solar cells, all of which have the characteristics of being lightweight, flexible and having stable energy harvesting, making them very suitable for multi-rotor drones.

[0046] like Figure 6As shown, a sleeve 14 is hinged at the center of the folding frame 6, and the sleeve 14 is hinged to each frame rod along its circumference. In this hinged structure, a ring or multiple connecting pieces can be fixedly connected around the outside of the sleeve 14. By rotatably folding the frame rods onto the ring or connecting pieces, the frame rods can be hinged and folded relative to the sleeve. Other conventional techniques can also achieve the same effect using hinged connections, which will not be elaborated upon here.

[0047] The sleeve 14 is fitted onto a rotating connecting shaft 7 that can rotate freely relative to the frame. The outer side of the rotating connecting shaft 7 is provided with a handle 8 for screwing, and the inner side is provided with an external threaded connection part 9 for connecting to the upper surface of the frame with a pre-reserved connection hole 10.

[0048] During disassembly and installation, the inner external threaded connection part 9 of the rotating connecting shaft 7 is threaded together with the pre-reserved connection hole 10 on the upper surface of the frame by turning the handle 8. Similarly, disassembly can be performed by turning. The rotating connecting shaft 7 and the sleeve 14 are sleeved together, so that only the rotating connecting shaft 7 needs to be rotated during the turning process, without the need to rotate the folding frame 6 at the same time, thus facilitating disassembly and installation operations.

[0049] In some embodiments, the folding frame material may be lightweight materials such as carbon fiber, composite materials, plastics, or aluminum alloys.

[0050] In order to better secure the flexible organic solar panel 4 and improve its stability during flight, the outer edge of the folding frame 6 is provided with at least four fastening parts 11 that are evenly spaced along the circumference and detachably connected to the upper surface of the frame. The upper surface of the frame is provided with multiple buckle seats 12 that match and connect to the fastening parts 11.

[0051] In some embodiments, the mating connection between the fastening part 11 and the buckle seat 12 can be achieved by using existing technologies such as plug-in buckle connection, pin fixing connection, or screw fixing connection.

[0052] In some embodiments, a long, tubular or semi-circular organic solar film 5 can be fitted onto the arms of the multi-rotor drone to facilitate the addition of more lightweight, flexible solar films to provide auxiliary power to the drone. Considering that the arms are mostly fixed or folding arms, the organic solar film 5 can be fixedly attached to the surface of the arm to reduce the inconvenience caused by folding, disassembling, or installing the arm.

[0053] In this embodiment, the multi-rotor UAV is also equipped with a flight control board, receiver, sensors, lighting, GPS, lidar, and other devices. The flexible organic solar panel 4 is also used to connect to the aforementioned sensors or lighting devices to provide auxiliary power.

[0054] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A flexible organic solar-powered multi-rotor unmanned aerial vehicle, characterized in that, include: frame; A multi-rotor power unit is mounted on the frame; A flexible organic solar panel, detachable and extendable, is disposed on the upper surface of the middle part of the frame, and the flexible organic solar panel is connected to the multi-rotor power mechanism.

2. The flexible organic solar-powered multi-rotor UAV according to claim 1, characterized in that, The frame includes a body and at least four arms, which extend outward at even intervals around the body in the circumferential direction. The multi-rotor power mechanism includes at least four rotors driven by a power drive mechanism, the rotors being mounted on the free end of the arm and driven by the power drive mechanism.

3. The flexible organic solar-powered multi-rotor UAV according to claim 2, characterized in that, The multi-rotor power mechanism also includes at least one set of batteries disposed within the fuselage, and the batteries are connected to the power drive mechanism.

4. The flexible organic solar-powered multi-rotor UAV according to claim 3, characterized in that, The flexible organic solar panel is connected to the battery and / or the power drive mechanism.

5. The flexible organic solar-powered multi-rotor UAV according to any one of claims 1 to 4, characterized in that, The flexible organic solar module includes an organic solar film and an umbrella-shaped folded frame, with the organic solar film fixedly mounted on the folded frame.

6. The flexible organic solar-powered multi-rotor UAV according to claim 5, characterized in that, A sleeve is hinged at the center of the folding frame. The sleeve is hinged to each frame rod along the circumference. The sleeve is fitted onto a rotating connecting shaft that can rotate freely relative to the frame. The outer side of the rotating connecting shaft is provided with a handle for screwing, and the inner side is provided with an external threaded connection part for connecting to the pre-reserved connection hole on the upper surface of the frame.

7. The flexible organic solar-powered multi-rotor UAV according to claim 6, characterized in that, The outer edge of the folding frame is provided with at least four fastening parts that are evenly spaced circumferentially and detachably connected to the upper surface of the frame.

8. The flexible organic solar-powered multi-rotor UAV according to claim 7, characterized in that, The upper surface of the frame is provided with a plurality of snap fasteners that match and connect with the fastening part.

9. The flexible organic solar-powered multi-rotor UAV according to claim 1, characterized in that, The upper surface of the frame is provided with a conical umbrella-shaped support platform that matches the flexible organic solar panel, and the tilt angle of the support platform is 5 to 10 degrees.

10. The flexible organic solar-powered multi-rotor UAV according to claim 1, characterized in that, The flexible organic solar panel is also connected to sensors or lighting fixtures mounted on the rack.