Multi-rotor unmanned aerial vehicle capable of being overlapped, automatic charging base and charging mother machine

Abstract

A multi-rotor unmanned aerial vehicle capable of being overlapped comprises a fuselage and a multi-rotor propeller assembly connected with the fuselage, and at least two overlapping connecting assemblies capable of being in butt joint during overlapping are connected to the upper portion or the lower portion of the fuselage. When the unmanned aerial vehicles need to be overlapped, the overlapping connecting assembly can conduct overlapping operation by heating the hot melt adhesive, and the two unmanned aerial vehicles are connected together by solidifying the hot melt adhesive after heating is stopped, so that transportation is facilitated. Meanwhile, the unmanned aerial vehicle is provided with a charging contact, so that the unmanned aerial vehicle can be charged and detected together in an overlapping state. Furthermore, the unmanned aerial vehicle can be charged through the automatic charging base and the unmanned aerial vehicle charging mother machine.

Description

TECHNICAL FIELD

[0001] The four-rotor unmanned aerial vehicle can be overlapped and automatically charged, and is convenient for storage, transportation and remote deployment. BACKGROUND

[0002] The four-rotor unmanned aerial vehicle has the advantages of low cost and simple operation. However, the ordinary four-rotor unmanned aerial vehicle has slow speed, short power storage mileage, small combat radius, and it is difficult to deploy in large quantities at a long distance. Moreover, the rotors of the unmanned aerial vehicle are fragile and are easy to be damaged during storage and transportation, which is not convenient for transportation and remote deployment.

[0003] The present application provides a scheme that can overlap in large quantities, store automatically, and further facilitate transportation and remote deployment of unmanned aerial vehicles. In addition, according to the application with application number 2024102393742, the overlapping scheme of the unmanned aerial vehicle in the application is not perfect, and it is not convenient for automatic operation. The efficiency of overlapping is very low. Important optimization is made in the application. SUMMARY

[0006] In view of the above problems, the present application provides an overlapped unmanned aerial vehicle and an automatic charging device.

[0007] In order to achieve the above object, a multi-rotor unmanned aerial vehicle capable of overlapping is provided, which comprises a fuselage, a multi-rotor propeller assembly connected to the fuselage, and at least two groups of overlapping connection assemblies capable of being docked when overlapping, which are connected to the upper part or lower part of the fuselage; the overlapping connection assembly comprises a docking convex part and a docking concave part connected to the fuselage; when overlapping is needed, the docking concave part can accommodate part of the docking convex part, and the two are gap-fitted, and the intermittent fitting surfaces are used to accommodate hot melt adhesive, and the docking convex part or the docking concave part or both are heated by an electric heating wire or a heating body. The control circuit of the unmanned aerial vehicle can control the heating state of the electric heating wire or the heating body.

[0008] Preferably, the surfaces of the docking convex part and the docking concave part of the overlapping connection assembly are gap-fitted and have a groove structure, a U-shaped structure or other structure that facilitates increasing the contact area of the hot melt adhesive.

[0009] Preferably, the upper part or lower part of the fuselage is respectively provided with at least two groups of conical positioning members, including a conical convex and a concave, to increase the positioning strength.

[0010] Preferably, the upper part or lower part of the fuselage is respectively provided with an elastic contact and a contact surface for conducting electricity, which are connected to the unmanned aerial vehicle control system through a line.

[0011] Preferably, the fuselage of the unmanned aerial vehicle is provided with a visual-based positioning identification target, and a control system and a target identification hardware for controlling the unmanned aerial vehicle to fly accurately to the position, The positioning recognition target is preferably a LED lamp group or a lamp strip or a pattern drawn by road marking paint, and the target recognition hardware is a camera.

[0012] The hot melt adhesive is preferably EVA hot melt adhesive.

[0013] Further, in order to better charge the stackable multi-rotor unmanned aerial vehicle, an automatic charging base for the multi-rotor unmanned aerial vehicle is invented, which comprises a charging base body, a storage battery arranged in the charging base body, a charging circuit and an automatic leveling device fixed to the charging base body. The upper part of the autonomous recovery charging base is provided with a plurality of stackable connection assemblies for connecting with a plurality of unmanned aerial vehicles, a conical positioning member, a charging contact or a contact surface, and a positioning recognition target, and the control system can orderly control the unmanned aerial vehicle to accurately fly to the base for charging.

[0014] Further, in order to better charge the stackable multi-rotor unmanned aerial vehicle, an automatic charging base for the multi-rotor unmanned aerial vehicle is invented, which comprises a charging base body, a storage battery arranged in the charging base body, a charging circuit and an automatic leveling device fixed to the charging base body. The upper part of the autonomous recovery charging base is provided with a plurality of stackable connection assemblies for connecting with a plurality of unmanned aerial vehicles, a conical positioning member, a charging contact or a contact surface, and a positioning recognition target, and the control system can orderly control the unmanned aerial vehicle to accurately fly to the base for charging.

[0015] The automatic leveling device preferably comprises four electric push rods, a level sensor and related control software. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is a top view of a three-dimensional view of a stackable multi-rotor unmanned aerial vehicle according to the present application; Figure 2 is a bottom view of a three-dimensional view of a stackable multi-rotor unmanned aerial vehicle according to the present application; Figure 3 is a sectional view of an example one of a stackable connection assembly according to the present application; Figure 4 is a three-dimensional view of a stackable multi-rotor unmanned aerial vehicle in a stacked state according to the present application; Figure 5 is a sectional view of an example two of a stackable connection assembly according to the present application; Figure 6 is a three-dimensional sectional view of an example three of a stackable connection assembly; Figure 7 is a three-dimensional view of an automatic charging base for a multi-rotor unmanned aerial vehicle according to the present application; Figure 8 Fig. 1 shows a perspective view of a multi-rotor unmanned aerial vehicle automatic charging base in use; Figure 9 Fig. 2 shows a perspective view of a multi-rotor unmanned aerial vehicle charging female machine. DETAILED DESCRIPTION

[0018] The present application is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 Fig. 3 shows a top view of a multi-rotor unmanned aerial vehicle that can be overlapped; Figure 2 Fig. 4 shows a bottom view of a multi-rotor unmanned aerial vehicle that can be overlapped.

[0020] As shown in the figure, the unmanned aerial vehicle 100 includes a fuselage 101 and a plurality of rotor assemblies 102. Generally, the fuselage also includes a battery and a control board, and the outside of the fuselage includes a camera, an antenna, and an explosive device contained in a military unmanned aerial vehicle, which will not be described in detail here as it is not the focus of the present application.

[0021] The fuselage 101 is connected with an overlapping connection assembly: a docking female part 11 and a docking male part 12; a conical positioning part: including a conical boss 14 and a female boss 15.

[0022] A charging contact 16 is also provided on the fuselage, which can contact a contact surface 17 below the fuselage of another unmanned aerial vehicle when the two unmanned aerial vehicles are overlapped, to charge all unmanned aerial vehicles in an overlapped state, or to detect the state.

[0023] An LED light strip 18 is also provided on the fuselage as a positioning recognition target, and the edges of the light strip 18 are filled with a prominent road marking paint. The LED light strip is more visible at night, and can communicate with other unmanned aerial vehicles through color and changing patterns, which is a kind of recognition target (recognized by other unmanned aerial vehicles), and the road marking paint facilitates visual recognition by other unmanned aerial vehicles as a positioning recognition target for precise positioning and landing.

[0024] Figure 3 Fig. 5 shows a cross-sectional view of an overlapping connection assembly example one, which includes a docking female part 11 and a docking male part 12 as shown in the figure. The docking female part 11 includes a connecting part 1101 connected with the unmanned aerial vehicle fuselage, a metal female part 1102 fixed by a heat insulation sleeve 1104 and a heating sleeve 1103. The docking male part 12 includes a connecting part 1201, and a metal male part 1202 fixed by a heat insulation sleeve 1204, and the metal male part 1202 is provided with a heating rod 1203.

[0025] The heating rod 1203 and the heating sleeve 1103 can be heated by MCH, PTC ceramic sheet or resistance wire. The heat insulation sleeve 1104 is made of heat insulation materials such as ceramic fiber paper.

[0026] Before the first docking, hot melt glue 13 needs to be put in advance in the metal concave piece 1102, and it is better to be preformed into a bowl shape to speed up the heating speed. The hot melt glue 13 can generally use EVA hot melt glue, which is a 100% solid meltable polymer without solvent and moisture. It is solid at room temperature, melts to a certain temperature to become a liquid that can flow and has certain viscosity. Its softening point is about 80-110℃, and the curing time is 8-10 seconds. When it is in a solid state, its shear strength is about 3MPa-8MPa. The use of high-quality EVA hot melt glue basically meets the needs of the present application, and of course other improved hot melt glue can also be used to make the connection strength greater. The metal concave piece 1102 is provided with an annular groove 11021, and the metal convex piece 1202 is provided with a spiral groove 12021, which increases the strength of the connection with the hot melt glue.

[0027] Figure 4 A perspective view of the overlapping state of the overlapped multi-rotor unmanned aerial vehicle is shown, as shown in the figure, a plurality of unmanned aerial vehicles are overlapped together, which is convenient for accommodating in a compact space, such as a cabin, a rocket cabin, and a missile magazine 9.

[0028] In addition, the overlapped unmanned aerial vehicle can be automatically overlapped and automatically released, the former reduces the artificial workload, and the latter not only reduces the artificial workload, but also has a practical effect on the orderly release of unmanned aerial vehicles in the air.

[0029] When automatic overlapping is needed, a unmanned aerial vehicle 100a is first fixed on the base (the method can refer to the automatic charging seat), and then the overlapping docking program is started through the system: the heating sleeve 1104 of the docking concave piece 11 of the unmanned aerial vehicle 100a is powered on, the hot melt glue 13 in the docking concave piece 11 is melted, the unmanned aerial vehicle 100b which is docked with it is identified through the LED light strip 17 (positioning identification target) on the top of the unmanned aerial vehicle a, and is aligned and landed (the charging contact 15 is connected), at this time the docking convex piece 12 of the overlapping assembly of the unmanned aerial vehicle 100b (which can be heated in advance to improve the connection efficiency) will be inserted into the docking concave piece 11 of the unmanned aerial vehicle 100a, at this time the heating sleeve 1104 of the docking concave piece 11 is powered off, and the hot melt glue 13 starts to solidify, firmly connecting the two unmanned aerial vehicles together. The overlapping connection method of the unmanned aerial vehicle 100c and the unmanned aerial vehicle 100b is the same as the former. Using the same method, we can overlap more unmanned aerial vehicles on the unmanned aerial vehicle 100c.

[0030] When the unmanned aerial vehicle needs to be released, according to the needs, the overlapping release program is started, and the above method is reversed in sequence: the hot melt glue 13 in the docking concave piece 11 is melted, and the unmanned aerial vehicle is separated from the overlapping and rises, one by one, and is released.

[0031] Figure 5A cross-sectional view of an overlapping connection assembly example two is shown. The boss of the docking male 12a adopts a high-strength plastic column directly connected with the body, reducing the cost (the disadvantage is that the docking efficiency is reduced). The docking female 11a includes a connecting piece 1101a in the shape of a steel bowl and a metal female piece 1102a, with a heating sleeve 1103a (here the heating uses a heating wire) arranged between the two. The connecting piece 1101a is connected to the UAV body through a heat insulation pad 1104a.

[0032] Hot melt adhesive 13 is connected between the docking male 12a and the metal female piece 1102a, and both the mating surfaces are configured with grooves or spiral grooves to improve the connection force between the two.

[0033] Figure 6 A perspective cross-sectional view of an overlapping connection assembly example three is shown. As shown, the docking female 11b includes a metal female piece 1102b, a heating plate 1103b (here a ceramic heating plate is used), a heat insulation pad 1104b connected to the UAV body through a bolt 1101b. The docking male 12b includes a connecting piece 1201b connected to the UAV body, a heat insulation sleeve 1204b and a U-shaped metal male piece 1202b fixed on the connecting piece 1201b, and a U-shaped heating rod 1203b arranged in the U-shaped metal male piece 1202b. When docking, the hot melt adhesive 13 solidified in the metal female piece 1102b is hung by the lower structure of the U-shaped metal male piece 1202b, achieving the function of bearing the connection force.

[0034] Figure 7 A perspective view of a multi-rotor unmanned aerial vehicle automatic charging base is shown, Figure 8 A perspective view of a multi-rotor unmanned aerial vehicle automatic charging base in use is shown.

[0035] As shown, the automatic charging base 5 includes a charging base body 50, which includes a battery and a control circuit inside, and three sets of charging contacts 51, conical bosses 52, and LED light strips 54 as positioning identification targets on the top. Four electric push rods 55 are provided at the four corners of the charging base body 50 as automatic leveling devices. In order to achieve the automatic leveling device, the control circuit includes a level sensor, and the software includes control of the four electric push rods 55 to achieve the function of leveling the charging base body 50. Preferably, handles 56 are connected to the two sides of the charging base body 50 to facilitate carrying.

[0036] The automatic charging base can have the same calling procedure as the unmanned aerial vehicle 100a of example one, and can autonomously call the unmanned aerial vehicle to automatically land on it for charging. At the same time, in order to achieve more stable charging and avoid accidentally knocking down the overlapping unmanned aerial vehicle on the charging base, causing damage to the unmanned aerial vehicle, a docking female piece 53 can be provided to bond the unmanned aerial vehicle to the recycling charging base through hot melt adhesive.

[0037] The automatic charging base can be carried during the drone performance, or dropped on the battlefield by parachute. When the drones in the drone group run out of power, they will return to the charging base 50 autonomously to charge. Since the power of the drones generally only supports half an hour, if the performance or war task is not completed in half an hour, the drones can automatically return to the charging base to charge, and then continue to complete the task after charging. For example, the drone group is subjected to electromagnetic interference and can only land and wait for communication recovery temporarily. At this time, the drones can be charged simultaneously, and then enter the battle after the communication is recovered.

[0038] Figure 9 A perspective view of a multi-rotor drone charging mother machine is shown. As shown in the figure, the multi-rotor drone charging mother machine is actually an automatic charging base with six rotor assemblies 66 in appearance, and the drone charging mother machine has components and functions that are common to drones.

[0039] Unlike ordinary drones, the drone charging mother machine body 60 is provided with three sets of charging contacts 61, conical bosses 62, docking recesses 63, and LED lamp strips 64 as positioning identification targets for facilitating charging of the drones.

[0040] In order to adapt to various terrains, an automatic leveling device 65 is also needed.

[0041] The function of the drone charging mother machine is the same as that of the automatic charging base, except that it has the function of a drone and is more flexible. This is particularly useful in the battlefield, as it can lead a team of small drones, charge them, and serve as a command center. Since the control system of the recovery charging mother machine is more powerful, it can load a miniature artificial intelligence center to complete the task in the absence of rear communication. Of course, the recovery charging mother machine is also excellent as a communication relay station.

[0042] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor are within the scope of the present application. For example, the automatic leveling device can also use a hydraulic push rod or other adjusting device, and a temperature sensor can be added to better control the state of the hot melt adhesive.

[0043] The technical features of the above-described embodiments can be combined in any way. In order to make the description concise, non-critical connections are not described in detail, and all possible combinations of the technical features in the above-described embodiments are not described. However, as long as the combinations of the technical features do not exist, they should be considered as within the scope of the present application.

[0044] Furthermore, any reference signs in the claims should not be construed as limiting the claims. The word 'comprising' does not exclude other elements or steps than those listed in a claim. The word 'a' or 'an' preceding an element does not exclude the presence of a plurality of such elements.

[0045] It should be noted that the above-mentioned embodiments illustrate rather than limit the application, and that those skilled in the art will be able to design many alternative embodiments without departing from the scope of the application. Such alternative embodiments are therefore considered to be within the scope of the application. The contents of the application are defined by the appended claims.

Claims

1. An over-lapable multi-rotor drone comprising a body, a multi-rotor propeller assembly connected to the body, characterized in that: The upper or lower part of the machine body is connected with at least two groups of overlapping connection components which can be docked when overlapping; the overlapping connection components include a docking convex piece and a docking concave piece connected with the machine body; When overlapping is needed, the docking concave piece can accommodate part of the docking convex piece, and the two are clearance fit, and the intermittent fit surfaces are used to accommodate hot melt adhesive, and the docking convex piece or the docking concave piece or both are heated by an electric heating wire or a heating body; the control circuit of the unmanned aerial vehicle can control the heating state of the electric heating wire or the heating body.

2. The overlapping multi-rotor unmanned aerial vehicle according to claim 1, the clearance fit surfaces of the docking convex piece and the docking concave piece of the overlapping connection components have a groove structure, a U-shaped structure or other structures which facilitate increasing the contact area with the hot melt adhesive.

3. The overlapping multi-rotor unmanned aerial vehicle according to claim 1, the upper or lower part of the machine body is respectively provided with at least two groups of conical positioning pieces including a conical convex table and a concave table.

4. The overlappable multi-copter drone of claim 1, wherein: The upper or lower part of the machine body is respectively provided with elastic contacts and contact surfaces for electric conduction, and the two are connected with the unmanned aerial vehicle control system through a line.

5. The overlapping multi-rotor unmanned aerial vehicle according to claim 1, the machine body of the unmanned aerial vehicle is provided with a vision-based positioning identification target, and a control system and a target identification hardware which control the unmanned aerial vehicle to fly accurately to a position.

6. The overlapping multi-rotor unmanned aerial vehicle according to claim 1, the positioning identification target is a group of LED lights or a light strip or a pattern drawn by road marking paint, and the target identification hardware is a camera.

7. The overlapping multi-rotor unmanned aerial vehicle according to claim 1, the hot melt adhesive is EVA hot melt adhesive.

8. A multi-rotor unmanned aerial vehicle automatic charging base, comprising a charging base body, a battery arranged inside the charging base body, a charging circuit and a four-point automatic leveling device on the charging base body, characterized in that: The upper part of the charging base body has a plurality of groups of overlapping connection components, conical positioning pieces, charging contacts or contact surfaces and positioning identification targets for connecting with a plurality of unmanned aerial vehicles, and the control system thereof can control the unmanned aerial vehicles to fly accurately to the charging base.

9. A multi-rotor unmanned aerial vehicle charging mother machine, comprising a machine body, a multi-rotor propeller assembly connected with the machine body, characterized in that: The upper part of the machine body is provided with a plurality of groups of overlapping connection components, conical positioning pieces, charging contacts and contact surfaces and positioning identification targets which can be docked with a plurality of multi-rotor unmanned aerial vehicles, and an automatic leveling device.

10. The automatic leveling device according to claim 8 or 9, comprising four electric push rods, a horizontal sensor and related control software.

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