Unmanned aerial vehicle power supply conversion device and mooring unmanned aerial vehicle

Abstract

The utility model relates to an unmanned aerial vehicle power supply conversion device and a mooring unmanned aerial vehicle, and the device comprises a housing, and a carrier power board, a high-voltage conversion module and a high-voltage conversion module heat dissipation device which are disposed in the housing of the unmanned aerial vehicle, and the carrier power board of the unmanned aerial vehicle is provided with a high-voltage input interface and a low-voltage output interface. Ground high-voltage electricity is transmitted through a mooring cable, input through the unmanned aerial vehicle high-voltage input interface, converted into low-voltage electricity through the unmanned aerial vehicle high-voltage conversion module, output through the unmanned aerial vehicle low-voltage output interface and then supplied to the unmanned aerial vehicle, and the unmanned aerial vehicle high-voltage conversion module heat dissipation device is used for heat dissipation of the unmanned aerial vehicle high-voltage conversion module. The carrier power board, the high-voltage conversion module, the high-voltage conversion module heat dissipation device, the high-voltage input interface and the low-voltage output interface are integrated into a whole and can be quickly and movably assembled and disassembled with the unmanned aerial vehicle, and different power supply modes of the unmanned aerial vehicle are utilized, so that the mooring flight mode function or the individual-soldier flight mode function of the unmanned aerial vehicle is fully exerted.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a power conversion device for UAVs and a tethered UAV. Background Technology

[0002] Currently, drones are mainly used in aerial photography, resource exploration, disaster relief, military operations, and public security. In special situations, they may require long endurance, making the power supply a challenging issue. This is where tethered drones come in. Tethered drones use ground power transmitted via a tether cable as their power source, ensuring a continuous power supply and enabling them to hover in one position for more than 24 hours. Replacing traditional lithium batteries, their most significant feature is their long-term hovering capability, allowing them to carry multiple payloads and perform extended aerial missions. Simultaneously, the cable ensures the real-time and stable transmission of big data and video information between the tethered drone and the ground-based vehicle platform.

[0003] Current tethered drones transmit high-voltage electricity from the ground via tethered cables, requiring the drone itself to convert the high voltage to low voltage for power supply. Tethered drones employ a three-stage design: "ground-based voltage boost → high-voltage transmission → onboard voltage reduction," ensuring efficient power supply over long distances while precisely matching the low-voltage requirements of onboard equipment. Currently, the high-voltage conversion module, emergency battery, and cooling system of tethered drones are all mounted on the drone and cannot be removed. Switching from tethered flight mode to single-soldier flight mode leaves additional weight on the drone, affecting its endurance. Utility Model Content

[0004] The purpose of this utility model is to provide a power conversion device and a drone for unmanned aerial vehicles (UAVs), aiming to solve the technical problems of various needs in the prior art, such as the high voltage conversion module, emergency battery and heat dissipation system of tethered UAVs being installed on the UAV and unable to be quickly disassembled.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A power conversion device for a drone is provided, including a housing and a carrier power board, a high-voltage conversion module, and a high-voltage conversion module heat dissipation device placed inside the housing. The carrier power board is provided with a high-voltage input interface and a low-voltage output interface. A through hole is provided on the end face of the housing. The high-voltage input interface and the low-voltage output interface are fitted and snapped into the through hole. High-voltage electricity from the ground is transmitted through a tethered cable, input through the high-voltage input interface, converted into low-voltage electricity by the high-voltage conversion module, and then output through the low-voltage output interface to power the drone. The high-voltage conversion module heat dissipation device is used to dissipate heat from the high-voltage conversion module.

[0006] Furthermore, a backup battery pack is also provided inside the housing, and the output terminal of the backup battery pack is electrically connected to the low-voltage output interface.

[0007] Furthermore, a battery management board is also provided inside the housing, which is used to monitor and control the voltage of the carrier power board.

[0008] Furthermore, one end of the battery management board is provided with a battery management board heat sink, and one end face of the outer casing is provided with a cavity, wherein the shape of the battery management board heat sink is adapted to and snapped into the cavity.

[0009] Furthermore, the heat dissipation device of the high-voltage conversion module includes a heat sink and a cooling fan. The heat sink is arranged around the high-voltage conversion module, and the heat of the high-voltage conversion module is dissipated through the heat sink and the cooling fan.

[0010] Furthermore, the outer shell is provided with a snap-fit ​​part, which is engaged with the drone.

[0011] Furthermore, the outer shell is provided with handles, which are symmetrically arranged on both sides of the outer shell.

[0012] This utility model also provides a tethered drone, including a drone, a tether cable, and the aforementioned drone power conversion device. The drone has a housing cavity at its bottom, and the drone power conversion device is movably placed in the housing cavity. High-voltage electricity from the ground end is transmitted through the tether cable and then passes through the drone power conversion device to power the drone.

[0013] The beneficial effects of this utility model are as follows: It provides a UAV power conversion device, including a housing and a carrier power board, a high-voltage conversion module, and a high-voltage conversion module heat dissipation device placed inside the housing. The carrier power board is provided with a high-voltage input interface and a low-voltage output interface. By integrating the carrier power board, the high-voltage conversion module, the high-voltage conversion module heat dissipation device, the high-voltage input interface, and the low-voltage output interface into one unit, it can be quickly and easily installed and removed from the UAV. It fully utilizes the different power supply methods of the UAV, giving full play to the tethered flight mode or the single-soldier flight mode. When long-term operation is required, the UAV power conversion device is movably plugged into the UAV housing cavity. The high-voltage electricity from the ground end is transmitted through the tethered cable and then powers the UAV through the power conversion device, which is the tethered flight mode. Different power levels can be adapted by replacing the internal high-voltage conversion module. When the UAV needs to operate at a long distance, the UAV power conversion device is removed, and the UAV battery is plugged into the UAV housing cavity. The UAV battery powers the UAV, which is the single-soldier flight mode. Without the constraint of the tethered cable, the operating range is wider. Removing the UAV power conversion device at this time reduces the weight of the UAV when switching flight modes. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional schematic diagram of the power conversion device for unmanned aerial vehicles (UAVs) according to this utility model;

[0016] Figure 2 Rear view of the power conversion device for unmanned aerial vehicles according to this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the power conversion device for unmanned aerial vehicles (UAVs) according to this utility model;

[0018] Figure 4 This is a schematic diagram of the overall structure of the tethered unmanned aerial vehicle of this utility model;

[0019] Figure 5 This is a schematic diagram of the UAV after the power conversion device has been removed.

[0020] Label Explanation:

[0021] 10. Unmanned aerial vehicle (UAV); 11. Containing cavity; 20. Power conversion device;

[0022] 21. Outer shell; 211. Handle; 212. Snap-fit ​​part;

[0023] 22. High-voltage input interface; 23. Low-voltage output interface; 24. High-voltage conversion module;

[0024] 25. Aircraft power supply board; 26. High-voltage conversion module heat dissipation device; 261. Heat sink;

[0025] 262. Cooling fan; 27. Backup battery pack; 28. Battery management board;

[0026] 29. Battery management board heat sink; 30. Mooring cable. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Please refer to the example below. Figures 1-5 As shown, this utility model embodiment provides a UAV power conversion device 20, including a housing 21 and a carrier power board 25, a high-voltage conversion module 24, and a high-voltage conversion module heat dissipation device 26 placed inside the housing. The carrier power board 25 is provided with a high-voltage input interface 22 and a low-voltage output interface 23. The end face of the housing 21 is provided with a through hole. The high-voltage input interface 22 and the low-voltage output interface 23 are adapted to the shape of the through hole and snapped together. The high-voltage electricity from the ground is transmitted through the tethered cable 30 and input through the high-voltage input interface 22, then converted into low-voltage electricity by the high-voltage conversion module 24, and then output through the low-voltage output interface 23 to power the UAV 10. The high-voltage conversion module heat dissipation device 26 is used to dissipate heat from the high-voltage conversion module 24.

[0032] In this embodiment, 400V high-voltage DC power is input to the airborne power board 25 via the tether cable 30. The airborne power board 25 then inputs the high voltage to the high-voltage conversion module 24. The high-voltage conversion module 24 converts the 400V high-voltage DC power into 24V DC power, which is then output through the low-voltage output interface to start the drone and power it. The maximum available power of the tethered drone can also be switched by changing the high-voltage conversion module.

[0033] Please refer to the example below. Figure 3 As shown, a backup battery pack 27 is also installed inside the outer casing 21. The output of the backup battery pack 27 is electrically connected to the low-voltage output interface 23. This system converts high-voltage electricity to low-voltage electricity to power the drone and the lighting system. A backup battery pack is also installed to ensure the drone can land safely in the event of a ground power outage.

[0034] Please refer to the example below. Figure 3 As shown, a battery management board 28 is also provided inside the outer casing 21. The battery management board 28 is used to monitor and control the voltage of the carrier power board. The high-voltage conversion module 24 converts 400V DC to 24V DC and then inputs it to the battery management board, which provides power to the drone. Preferably, the battery management board can also compare the voltage of the backup battery pack with the voltage of the 24V DC. If the voltage of the backup battery pack is lower than that of the 24V DC, the backup battery pack is charged using the 24V DC. If the power required by the drone exceeds the maximum power of the 24V DC, the backup battery pack will discharge synchronously, reducing the impact of instantaneous power consumption on the drone.

[0035] If the ground power is disconnected, the high-voltage conversion module will send a signal to the drone, triggering the drone to return to base in an emergency. At the same time, it will use the backup battery pack to ensure the drone lands safely.

[0036] Please refer to the example below. Figure 3 As shown, the battery management board 28 has a heat sink 29 at one end, and a cavity is provided on one end face of the outer casing. The heat sink is fitted into the cavity. The heat sink is used to dissipate heat from the battery management board.

[0037] Please refer to the example below. Figure 1 , Figure 3 As shown, the high-voltage conversion module heat dissipation device 26 includes a heat sink 261 and a cooling fan 262. The high-voltage conversion module 24 is surrounded by the heat sink 261, and the heat of the high-voltage conversion module 24 is dissipated through the heat sink 261 and the cooling fan 262.

[0038] Please refer to the example below. Figure 1 , Figure 2 As shown, the outer casing 21 has a snap-fit ​​part 212, which is movably snapped into the drone 10. This facilitates the connection between the drone's power conversion device and the drone, allowing for simple, convenient, and quick replacement of the power conversion device.

[0039] Please refer to the example below. Figure 1 , Figure 2 As shown, a handle 211 is provided on the outside of the outer casing 21, and the handles 211 are symmetrically arranged on both sides of the outside of the outer casing 21. The handles of the equipment further facilitate the replacement of the power supply conversion device.

[0040] Please refer to the example below. Figure 4 , Figure 5 As shown, this utility model also provides a tethered drone, including a drone 10, a tether cable 30 and the aforementioned drone power conversion device 20. The drone 10 has a housing cavity 11 at its bottom, and the drone power conversion device is movably placed in the housing cavity. The high voltage power at the ground end is transmitted through the tether cable and then passes through the drone power conversion device to power the drone.

[0041] In summary, the beneficial effects of this utility model are as follows: It provides a power conversion device for unmanned aerial vehicles (UAVs), including a housing and a carrier power board, a high-voltage conversion module, and a high-voltage conversion module heat dissipation device housed within the housing. The carrier power board is equipped with a high-voltage input interface and a low-voltage output interface. By integrating the carrier power board, the high-voltage conversion module, the high-voltage conversion module heat dissipation device, the high-voltage input interface, and the low-voltage output interface into one unit, it can be quickly and easily installed and removed from the UAV. Furthermore, the maximum usable power of the tethered UAV can be switched by replacing the high-voltage conversion module.

[0042] By utilizing different power supply methods, the tethered flight mode and individual flight mode capabilities of drones can be fully realized. For extended operation, the drone power conversion device can be detachably plugged into the drone's housing. High-voltage electricity from the ground is transmitted through the tethered cable and then through the drone power conversion device to power the drone, thus activating tethered flight mode. Different power outputs can be adapted by replacing the internal high-voltage conversion module. For long-distance operations, the drone power conversion device can be removed, and the drone battery can be plugged into the drone's housing. The drone battery powers the drone, thus activating individual flight mode. Without the constraints of the tethered cable, the operational range is wider. Removing the drone power conversion device at this time reduces the weight of the drone when switching flight modes.

[0043] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An unmanned aerial vehicle power conversion device, characterized by, The unmanned aerial vehicle power supply conversion device comprises a shell, a carrier power board, a high-voltage conversion module and a high-voltage conversion module heat dissipation device, wherein the carrier power board is arranged in the shell, the carrier power board is provided with a high-voltage input interface and a low-voltage output interface, a through hole is arranged on an end surface of the shell, the high-voltage input interface and the low-voltage output interface are matched and connected with the through hole, ground high-voltage power is transmitted through the high-voltage input interface, then converted into low-voltage power through the high-voltage conversion module, and then output through the low-voltage output interface to supply power to the unmanned aerial vehicle, and the high-voltage conversion module heat dissipation device is used for heat dissipation of the high-voltage conversion module.

2. The unmanned aerial vehicle power conversion device of claim 1, wherein, The shell is further provided with a backup battery pack, and an output end of the backup battery pack is electrically connected with the low-voltage output interface.

3. The unmanned aerial vehicle power conversion device of claim 1, wherein, The shell is further provided with a battery management board, and the battery management board is used for monitoring and controlling voltage of the carrier power board.

4. The unmanned aerial vehicle power conversion device of claim 3, wherein, One end of the battery management board is provided with a battery management board heat dissipation plate, one end surface of the shell is provided with a cavity, and the battery management board heat dissipation plate is matched and connected with the cavity.

5. The unmanned aerial vehicle power conversion device of claim 1, wherein, The high-voltage conversion module heat dissipation device comprises a heat dissipation fin and a heat dissipation fan, the high-voltage conversion module is provided with the heat dissipation fin, and heat of the high-voltage conversion module is dissipated through the heat dissipation fin and the heat dissipation fan.

6. The unmanned aerial vehicle power conversion device of claim 1, wherein, The shell is externally provided with a clamping part, and the clamping part is movably connected with the unmanned aerial vehicle.

7. The unmanned aerial vehicle power conversion device of claim 1, wherein, The shell is externally provided with a handle, and the handle is symmetrically arranged on both sides of the shell.

8. A tethered drone, characterized in that, The unmanned aerial vehicle power supply conversion device comprises an unmanned aerial vehicle, a tether cable and the unmanned aerial vehicle power supply conversion device according to any one of claims 1 to 7, the unmanned aerial vehicle is provided with a containing cavity at a bottom thereof, the unmanned aerial vehicle power supply conversion device is movably arranged in the containing cavity, ground high-voltage power is transmitted through the tether cable, and then the unmanned aerial vehicle is powered through the unmanned aerial vehicle power supply conversion device.

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