A tethered drone

Abstract

The present invention discloses a tethered drone. The tethered drone comprises: a body, comprising a central compartment and a shielded compartment, the shielded compartment being connected to the bottom of the central compartment; an onboard power supply, mounted at the bottom of the shielded compartment; and a plurality of arms, each having one end detachably connected to a side of the central compartment, the other end of each arm being provided with a motor seat, the motor seat being provided with a motor, the motor being rotatably connected to a propeller. The tethered drone disclosed in the present invention has a reasonable structural layout, is easy to install, and is convenient for disassembly and maintenance. It overcomes electromagnetic interference between components within the body and meets electromagnetic compatibility testing requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to a tethered UAV. Background Art

[0002] A tethered multi-rotor drone system is a device connected to a ground power supply system via an optoelectronic composite cable for uninterrupted power. It can be equipped with various optoelectronic and communications payloads, including radar, signal reconnaissance, relay radios, communication base stations, and antennas, as needed.

[0003] The electromagnetic compatibility design effect of the drone has a great impact on the operation of the payload equipment, and the indicators of the drone's electric field radiation emission directly affect the working performance of the drone's payload equipment. The electric field radiation of the drone is mainly emitted by power equipment such as the onboard power supply, motor, and electronic regulation. Especially in the low-frequency 30-100M band, if it is not handled properly, it may even directly cause the payload to fail to work. Summary of the Invention

[0004] An embodiment of the present invention provides a tethered drone to solve technical problems such as poor electromagnetic compatibility design of existing drones.

[0005] A tethered drone provided according to an embodiment of the present invention includes:

[0006] A machine body, comprising a central compartment and a shielding compartment, wherein the shielding compartment is connected to the bottom of the central compartment;

[0007] An onboard power supply, the onboard power supply being installed at the bottom of the shielding compartment;

[0008] Multiple arms, one end of each arm is detachably connected to the side of the central warehouse, and the other end of the arm is provided with a motor seat, and the motor is provided on the motor seat. The motor is rotatably connected to the propeller.

[0009] In some embodiments, the cable of the onboard power supply passes through the shielding compartment, the central compartment and the machine arm and is connected to the motor base.

[0010] In some embodiments, an electromagnetic shielding assembly is provided between the shielding compartment and the central compartment, and the cable passes through the electromagnetic shielding assembly.

[0011] In some embodiments, the electromagnetic shielding assembly includes a square housing and a filter disposed in the square housing.

[0012] In some embodiments, the filter includes a capacitor and an inductor.

[0013] In some embodiments, the electromagnetic shielding assembly is provided with an aviation plug connector and a shielding compartment wiring port.

[0014] In some embodiments, the cable passes through the shielding compartment wiring port, the filter, and the aviation plug connector in sequence.

[0015] In some embodiments, the aviation plug connector and the shielding compartment connection port are respectively arranged on different outer side walls of the square shell.

[0016] In some embodiments, the machine arm is a foldable machine arm; and / or,

[0017] The shielding compartment is made of an integral aluminum alloy.

[0018] In some embodiments, the central compartment and the shielding compartment, the shielding compartment and the onboard power supply, and the electromagnetic shielding assembly and the central compartment are connected in a detachable manner.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] The tethered drone proposed in the embodiment of the present invention has a reasonable structural layout, is easy to install, and is convenient to disassemble and repair. It overcomes the electromagnetic interference between the various components inside the drone and meets the electromagnetic compatibility test requirements of various levels of standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 1 is a schematic structural diagram of a tethered drone provided by one embodiment of the present invention;

[0022] Figure 2 It is a structural schematic diagram of an electromagnetic shielding assembly provided by one embodiment of the present invention.

[0023] Description of the accompanying drawings:

[0024] 1. Central compartment, 2. Shielding compartment, 3. Onboard power supply, 4. Electromagnetic shielding assembly, 5. Arm connection, 6. Square shell, 7. Shielding compartment wiring port, 8. Aviation plug connector. DETAILED DESCRIPTION

[0025] The following description sets forth numerous specific details to facilitate a thorough understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific implementations disclosed below.

[0026] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0028] In the description of the present invention, reference to terms such as "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention.

[0029] An embodiment of the present invention discloses a tethered drone, comprising:

[0030] The machine body includes a central compartment 1 and a shielding compartment 2, wherein the shielding compartment 2 is connected to the bottom of the central compartment 1;

[0031] An onboard power supply 3, which is installed at the bottom of the shielding compartment 2;

[0032] Multiple arms (not shown in the figure), one end of each arm is detachably connected to the side of the central warehouse, specifically, it can be installed on the arm connecting part 5 set on the side of the central warehouse 1, and a motor base is provided on the other end of the arm, and a motor is provided on the motor base, and the motor is rotationally connected to the propeller.

[0033] According to the above embodiment of the present invention, the central warehouse 1 and the airborne power supply 3 are separated by setting a shielding warehouse 2. Since the airborne power supply is the interference source that generates the largest electric field radiation, isolating it from the central warehouse improves the electromagnetic compatibility between the central warehouse and the central warehouse and the motor on the arm.

[0034] In some embodiments, the cable of the onboard power supply 3 passes through the shielding compartment 2, the central compartment 1 and the machine arm and is connected to the motor base.

[0035] In some embodiments, an electromagnetic shielding assembly 4 is provided between the shielding compartment 2 and the central compartment 1 , and the cables pass through the electromagnetic shielding assembly 4 .

[0036] In some embodiments, the electromagnetic shielding assembly 4 includes a square shell 6 and a filter (not shown in the figures) disposed in the square shell 6 .

[0037] In some embodiments, the filter includes capacitors and inductors, and a layer of isolation filtering is performed by the capacitors and inductors to prevent the electromagnetic radiation of the onboard power supply 3 from being coupled to the interior of the central warehouse 1.

[0038] In some embodiments, combined Figure 2 As shown, the electromagnetic shielding assembly 4 is provided with an aviation plug connector 8 and a shielding compartment connection port 7. The above structure can not only play a filtering role, but also facilitate the disassembly, assembly and maintenance of the UAV.

[0039] In some embodiments, the cable is led out from the onboard power supply 3 and passes through the shielding compartment wiring port 7, the filter and the aviation plug connector 8 in sequence, and then enters the interior of the central compartment 1.

[0040] In some embodiments, the aviation plug connector 8 and the shielding compartment connection port 7 are respectively arranged on different outer side walls of the square housing. Figure 2 As shown, the shielding compartment connection port 7 is arranged on a side wall or bottom wall of the square shell, and the aviation plug connector 8 is arranged on the top wall of the square shell, so as to facilitate the introduction of cables into the central compartment 1.

[0041] In some optional embodiments, the machine arm is a foldable machine arm, and the foldable machine arm is provided to facilitate retraction and placement.

[0042] Optionally, the shielding compartment 2 is made of an integral aluminum alloy, for example, is integrally formed using an injection molding process, thereby achieving and improving the electric field shielding effect.

[0043] In some optional embodiments, the central compartment 1 and the shielding compartment 2, the shielding compartment 2 and the onboard power supply 3, and the electromagnetic shielding assembly 4 and the central compartment 1 are detachably connected by threaded connections, such as screws, bolts, or snap connections, to facilitate disassembly and maintenance.

[0044] Example 1

[0045] The tethered UAV body is composed of a shielded compartment 2 and a central compartment 1, wherein the onboard power supply 3 is installed at the lower part of the shielded compartment 2, as shown in FIG1 .

[0046] Furthermore, due to Figure 1The tethered drone in the figure cannot achieve a good shielding effect at the arm folding part 5, motor seat, etc., and the electric field radiation of the onboard power supply 3 in the entire drone is the most serious. When the shielding compartment 2 and the central compartment 1 are assembled together, there is still a cable through the middle of the shielding compartment 2 and the central compartment 1 connected to the central compartment 1, causing the electric field radiation of the onboard power supply to be coupled to the central compartment, folding arm, motor seat and other positions through the cable, thereby affecting the work and performance of the payload.

[0047] Therefore, this example further designs an electromagnetic filtering component 4, which isolates and filters the cable from the shielding warehouse 2 to the central warehouse 1 through the capacitors and inductors in the electromagnetic filtering component 4, thereby preventing the electromagnetic radiation of the onboard power supply 3 from being coupled into the interior of the central warehouse 1.

[0048] Taking assembly and maintainability into consideration, an aviation plug connector 8 is installed on the electromagnetic filter assembly 4 and is integrated with the filter inside the electromagnetic filter assembly 4 , as shown in FIG2 .

[0049] The cables in the shielding compartment 2 are connected to the electromagnetic filter assembly 4 through the shielding compartment wiring port 7, and then connected to the central compartment through the aviation plug connector 8 above the electromagnetic filter assembly 4. This design not only plays a filtering role, but also makes it easier to disassemble and repair the drone. The specific installation structure is as follows Figure 1 and Figure 2 shown.

[0050] The electromagnetic compatibility design of the drone in Example 1 can significantly reduce the interference of electric field radiation, thereby improving the performance of the drone's payload. The drone has undergone electromagnetic compatibility testing under third-party simulated high-altitude flight power conditions and high-altitude flight testing with a surveillance payload. The results show that the final effect of the tethered drone's electric field radiation emission is at least 20% higher than the electromagnetic compatibility of the original tethered drone at all levels of standards, and has been unanimously recognized by customers and payload manufacturers.

[0051] It should be noted that although the present invention is disclosed above in terms of preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined by the claims of the present invention.

Claims

1. A tethered drone, characterized in that: The tethered drone comprises: A machine body, comprising a central compartment and a shielding compartment, wherein the shielding compartment is connected to the bottom of the central compartment; An onboard power supply, the onboard power supply being installed at the bottom of the shielding compartment; A plurality of arms, one end of each arm being detachably connected to a side of the central warehouse, and the other end of each arm being provided with a motor seat, the motor seat being provided with a motor, and the motor being rotatably connected to a propeller; The cable of the onboard power supply passes through the shielding compartment, the central compartment and the machine arm and is connected to the motor base; An electromagnetic shielding assembly is provided between the shielding compartment and the central compartment. The electromagnetic shielding assembly is provided in the shielding compartment and connected to the bottom of the central compartment. The cables pass through the electromagnetic shielding assembly. The electromagnetic shielding assembly includes a square shell and a filter arranged in the square shell; The electromagnetic shielding assembly is provided with an aviation plug connector and a shielding compartment wiring port; The cable passes through the shielding compartment wiring port, the filter and the aviation plug connector in sequence.

2. The tethered drone according to claim 1, wherein the filter comprises a capacitor and an inductor.

3. The tethered drone according to claim 1, wherein: The aviation plug connector and the shielding compartment connection port are respectively arranged on different outer side walls of the square shell.

4. The tethered drone according to claim 1, wherein: The machine arm is a foldable machine arm; and / or, The shielding compartment is made of an integral aluminum alloy.

5. The tethered drone according to claim 1, wherein: The central compartment and the shielding compartment, the shielding compartment and the airborne power supply, and the electromagnetic shielding assembly and the central compartment are connected in a detachable manner.

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