Multifunctional unmanned aerial vehicle

Abstract

The utility model belongs to the technical field of aircrafts, and particularly relates to a multifunctional unmanned aerial vehicle. The power assemblies are arranged at the four corners of the machine body assembly respectively, and the box body assembly is arranged at the bottom of the machine body assembly. The machine body assembly comprises a lower shell and an upper shell which is detachably mounted above the lower shell; a containing cavity is formed in the lower shell, a fuel cell stack and a hydrogen storage bottle communicated with the fuel cell stack are arranged in the containing cavity, the fuel cell stack is used for providing power for the unmanned aerial vehicle, and the hydrogen storage bottle provides hydrogen needed by reaction for the fuel cell stack; the box body assembly is detachably installed at the bottom of the lower shell and used for carrying various different devices or materials. The box body assembly of the unmanned aerial vehicle can be used for carrying various different devices or materials, a user can quickly replace box body assemblies with different functions according to different operation requirements, the use flexibility of the unmanned aerial vehicle is greatly improved, and the application range of the unmanned aerial vehicle is greatly widened.

Description

TECHNICAL FIELD

[0001] The utility model belongs to aircraft technical field, especially relate to a multifunctional unmanned plane. BACKGROUND

[0002] In the current era of rapid development of science and technology, the application field of unmanned plane technology continues to expand, and the requirement for the functional diversity of unmanned plane is increasingly rising. However, many unmanned planes at present stage have relatively single function, such as some unmanned planes can only be used for aerial photography, and some can only be used for agricultural and forestry plant protection. At the same time, the mounting function of most existing unmanned planes is also extremely limited, which is difficult to meet the diversified operation requirements.

[0003] Taking the plant protection unmanned plane as an example, in the process of agricultural plant protection operation, it is necessary to accurately control the spraying dose, range and mode of pesticide in the face of different types of crops, crops in different growth stages and various types of pests. This requires the unmanned plane to be able to flexibly mount equipment with different spraying functions, such as high-efficiency spraying equipment for large-area farmland and precise point spraying device for small-range pest control. However, the existing unmanned plane mounting system is difficult to realize the quick replacement of these functional components. Therefore, in actual operation, the function of the unmanned plane cannot be quickly adjusted according to the specific agricultural conditions, which greatly reduces the efficiency and effect of plant protection operation.

[0004] The logistics unmanned plane also encounters similar difficulties in the logistics distribution industry. With the rapid development of e-commerce industry, the size, weight and shape of packages are different. Sometimes the unmanned plane needs to transport small and light documents or valuable items, and sometimes it needs to carry relatively large and heavy packages. However, the mounting design of traditional unmanned plane is fixed, which cannot quickly adapt to the carrying needs of different types of packages, which seriously limits its application range in the logistics distribution field, and the advantage of unmanned plane in the "last mile" distribution cannot be fully displayed.

[0005] In summary, the existing unmanned plane has serious deficiencies in the flexibility of function loading, which cannot meet the increasingly diversified and refined operation requirements of different industries.

[0006] Therefore, the utility model provides a new multifunctional unmanned plane to overcome the above-mentioned defects. UTILITY MODEL CONTENT

[0007] The utility model aims at providing a multifunctional unmanned plane, the box body assembly of the unmanned plane can be detachably installed at the bottom of the lower shell, the box body assembly can be used for carrying various different equipment or materials, the user can quickly replace the box body assembly with different functions according to different operation requirements, which greatly improves the use flexibility and application range of the unmanned plane.

[0008] The utility model discloses the following technical scheme: a kind of multifunctional unmanned aerial vehicle, it includes fuselage assembly, power assembly respectively arranged at the four corners of the fuselage assembly, and box assembly arranged at the bottom of the fuselage assembly;

[0009] Wherein, the fuselage assembly includes lower shell and upper shell detachably mounted above the lower shell;

[0010] The lower shell is internally provided with a receiving cavity, the receiving cavity is provided with a fuel cell stack and a hydrogen storage bottle in communication with the fuel cell stack, the fuel cell stack is used to provide power for the unmanned aerial vehicle, and the hydrogen storage bottle provides hydrogen required for reaction for the fuel cell stack.

[0011] The box assembly is detachably mounted on the bottom of the lower shell, and the box assembly is used to carry various different equipment or materials.

[0012] Further, the left and right two side walls of the lower shell are provided with two spaced and height direction staggered distribution clamping seats, and the two clamping seats are respectively used for clamping the arm of the power assembly close to one side.

[0013] Further, the clamping end of the clamping seat is formed with a C-shaped groove for clamping the arm.

[0014] Further, the bottom of the lower shell is provided with a plurality of groups of exhaust fan pieces.

[0015] Further, the rear wall surface of the upper shell and the lower shell is provided with a plurality of regularly arranged air holes.

[0016] Further, the front wall surface of the lower shell is provided with an openable heat dissipation window, and the heat dissipation window is detachably connected with the lower shell.

[0017] Further, the upper wall surface of the upper shell is provided with an openable upper cover, and the upper cover is buckle-connected with the upper shell.

[0018] Further, the middle part of the receiving cavity of the lower shell is provided with two support plates spaced apart along the width direction thereof, the upper part of the support plate is provided with the hydrogen storage bottle, and the lower part is provided with the fuel cell stack.

[0019] Further, the support plate is provided with an arc-shaped groove and a plurality of belt perforations.

[0020] The hydrogen storage bottle is placed in the arc-shaped groove of the support plate, and the belt is sequentially penetrated through the belt perforations on both sides of the hydrogen storage bottle to fix the hydrogen storage bottle.

[0021] Further, the box assembly includes a support frame assembly and a box body mounted on the support frame assembly.

[0022] The support frame assembly comprises a first U-shaped frame and a second U-shaped frame symmetrically mounted on the left and right sides of the lower shell, and a II-shaped support member, the II-shaped support member is sequentially connected by a first horizontal rod, a first vertical rod, a second horizontal rod and a second vertical rod.

[0023] The front and rear ends of the first vertical rod and the second vertical rod are connected with the two side rods of the first U-shaped frame and the second U-shaped frame respectively.

[0024] The two sides of the box body are detachably mounted on the first horizontal rod and the second horizontal rod, or mounted on the first vertical rod and the second vertical rod.

[0025] Compared with the prior art, the utility model has the advantages that:

[0026] In the utility model, the upper shell of the multifunctional unmanned aerial vehicle is detachably mounted above the lower shell, and the split design brings great convenience for the installation, debugging and maintenance of the internal parts of the unmanned aerial vehicle. When the fuel cell stack, hydrogen storage bottle and other parts need to be repaired or replaced, the upper shell can be easily disassembled, and the internal parts can be quickly contacted, thereby significantly reducing the maintenance difficulty and cost. The accommodating cavity in the lower shell creates a relatively closed and stable space for the fuel cell stack and the hydrogen storage bottle, which can effectively resist external collision, dust and water vapor, avoid damage to these key parts, and greatly improve the reliability and service life of the power system of the unmanned aerial vehicle.

[0027] In terms of power source, the unmanned aerial vehicle adopts a fuel cell stack. Unlike traditional fuel engines or lithium batteries, the fuel cell stack generates electricity by reacting hydrogen and oxygen, and the entire reaction process is zero carbon emission, which is extremely friendly to the environment, and is particularly suitable for operation scenes with strict environmental protection requirements.

[0028] In addition, the box assembly is detachably mounted on the bottom of the lower shell, and the box assembly can be used to carry various different equipment or materials, such as a high-definition camera for aerial photography, pesticide for agricultural plant protection, small packages for logistics distribution, or fire extinguishing equipment for fire fighting, etc. Users can quickly replace the box assembly with different functions according to different operation requirements, greatly improving the use flexibility and application range of the unmanned aerial vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0030] Figure 1 The utility model discloses a multifunctional unmanned plane structure schematic diagram for embodiment,

[0031] Figure 2 The utility model discloses a multifunctional unmanned plane structure schematic diagram for embodiment, Figure 1 Remove partial component structure schematic diagram in Figure 1 ;

[0032] Figure 3 The utility model discloses a multifunctional unmanned plane structure schematic diagram for embodiment, Figure 1 Remove partial component structure schematic diagram in Figure 2 ;

[0033] Wherein: fuselage assembly 1, lower shell 10, upper shell 11, clamping seat 12, C-shaped recess 121, air hole 13, upper cover 14, support plate 15, arc slot 151, belt perforation 152, heat dissipation window 16;Box body assembly 2, box body 20, first U-shaped frame 21, second U-shaped frame 22, first horizontal rod 23, first vertical rod 24, second horizontal rod 25, second vertical rod 26, side rod 27, communication connector 28, reinforcing rib 29;Fuel cell stack 3;Hydrogen storage bottle 4;Arm 5;Exhaust fan piece 6;Power assembly 7. Specific implementation

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the present application, obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application.

[0035] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the present application, obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application. Figure 1 To the drawings Figure 3 And specific embodiments, the present application is discussed in detail:

[0036] As Figures 1-3 The utility model provides a kind of multifunctional unmanned plane, it includes fuselage assembly 1, power assembly 7 respectively arranged in the four corners of the fuselage assembly 1, and box body assembly 2 arranged in the bottom of the fuselage assembly 1;

[0037] Wherein, the fuselage assembly 1 includes lower shell 10, and upper shell 11 detachably installed above the lower shell 10;

[0038] The lower shell 10 is internally provided with a containing cavity, the containing cavity is provided with a fuel cell stack 3 and a hydrogen storage bottle 4 communicated with the fuel cell stack 3, the fuel cell stack 3 generates electrochemical reaction, converts chemical energy into electric energy, provides power for power components and other electric equipment of the unmanned aerial vehicle, thereby driving the unmanned aerial vehicle to fly; the hydrogen storage bottle 4 provides hydrogen required for reaction of the fuel cell stack 3 as a source of reactant of the fuel cell stack 3;

[0039] The box assembly 2 is detachably installed at the bottom of the lower shell 10, and the box assembly 2 can be used to carry various different equipment or materials, for example, used to carry a high-definition camera for aerial photography, carry pesticides for agricultural plant protection operation, carry small packages for logistics distribution, or clean the outer wall and glass of a building.

[0040] In the utility model, the upper shell 11 of the multifunctional unmanned aerial vehicle is detachably installed above the lower shell 10, and the split type design brings great convenience for installation, debugging and maintenance of internal parts of the unmanned aerial vehicle. When the fuel cell stack 3, the hydrogen storage bottle 4 and other parts need to be repaired or replaced, the upper shell 11 can be easily disassembled, so that the internal parts can be quickly contacted, and the maintenance difficulty and cost are significantly reduced. The containing cavity in the lower shell 10 creates a relatively closed and stable space for the fuel cell stack 3 and the hydrogen storage bottle 4, which can effectively resist external collision, dust and water vapor, avoid damage to these key parts, and greatly improve the reliability and service life of the power system of the unmanned aerial vehicle.

[0041] In terms of power source, the unmanned aerial vehicle adopts the fuel cell stack 3. Unlike traditional fuel engines or lithium batteries, the fuel cell stack 3 generates electric energy by the reaction of hydrogen and oxygen, the whole reaction process is zero carbon emission, which is extremely friendly to the environment, and is particularly suitable for operation scenes with strict environmental protection requirements.

[0042] In addition, the box assembly 2 is detachably installed at the bottom of the lower shell 10, and the box assembly 2 can be used to carry various different equipment or materials, for example, used to carry a high-definition camera for aerial photography, carry pesticides for agricultural plant protection operation, or carry small packages for logistics distribution, or carry fire extinguishing equipment for fire fighting operation. Users can quickly replace different functional box assemblies according to different operation requirements, greatly improving the use flexibility and application range of the unmanned aerial vehicle.

[0043] Further, in some specific embodiments, the lower shell 10 is provided with two spaced apart and height direction staggered distribution clamping seats 12 on the left and right side walls, and the two clamping seats 12 are respectively used for clamping the arm 5 of the power assembly close to one side. When the arm 5 of the power assembly is not in a working state, it can be clamped on the corresponding clamping seat 12 respectively, so as to realize the storage of the arm 5, reduce the overall space occupation of the unmanned aerial vehicle, facilitate the storage of the unmanned aerial vehicle in the storage and transportation process to avoid the inconvenience caused by the overlong or protruding arm, reduce the transportation difficulty and cost, and facilitate the storage of the unmanned aerial vehicle in a small space. The two clamping seats 12 are spaced apart and staggered, which can effectively avoid the mutual collision of different arms 5 during storage, and prevent the mutual interference of the arms 5.

[0044] Specifically, the clamping end of the clamping seat 12 is formed with a C-shaped groove 121 for clamping and accommodating the arm 5. The shape of the C-shaped groove 121 has good adaptability with the shape of the arm 5. When the arm 5 is stored, it only needs to be aligned with the C-shaped groove 121 and gently pressed, and the arm 5 can be quickly inserted into the groove to realize stable clamping.

[0045] Further, in some specific embodiments, the bottom of the lower shell 10 is provided with a plurality of groups of exhaust fan pieces 6 for heat dissipation. In the embodiment, four groups of exhaust fan pieces 6 are provided. The lower shell 10 contains key components such as fuel cell stacks 3, and these components will generate a large amount of heat during operation. The plurality of groups of exhaust fan pieces 6 are arranged at the bottom of the lower shell 10, which can directly replace the air in the internal space of the lower shell 10. When the exhaust fan pieces 6 are running, the hot air inside is quickly exhausted, and the relatively low-temperature air from the outside is introduced, forming a good air convection, avoiding the decrease of electrochemical reaction efficiency or the acceleration of electronic component aging and damage caused by high temperature, slowing down the component aging speed, reducing the equipment failure probability, thereby prolonging the service life of various equipment inside the unmanned aerial vehicle, reducing the cost of maintenance and replacement of equipment, improving the overall reliability and stability of the unmanned aerial vehicle. In addition, in hot weather, the ambient temperature itself is high, and the heat generated inside the unmanned aerial vehicle is more difficult to dissipate. At this time, the plurality of groups of exhaust fan pieces 6 can increase the heat dissipation strength, overcome the adverse effects of high temperature environment on the heat dissipation of the unmanned aerial vehicle, and ensure that the unmanned aerial vehicle can still work normally in high temperature environment. While in cold weather, although the overall environmental temperature is low, if the heat generated by the components during the flight of the unmanned aerial vehicle cannot be discharged in time, condensate water may be formed inside, damaging the equipment. The exhaust fan pieces 6 keep the air flowing to avoid the accumulation of water vapor inside, adapt to the heat dissipation demand in different climate conditions, and widen the application environment range of the unmanned aerial vehicle.

[0046] Further, in some specific embodiments, a plurality of air permeable holes 13 are arranged on the rear wall surface of the upper shell 11 and the lower shell 10, which can enhance the air flow and heat dissipation effect.

[0047] Further, in some embodiments, the front wall of the lower shell 10 is provided with an openable heat dissipation window 16, which is detachably connected with the lower shell 10, facilitating daily maintenance and equipment replacement. If further air flow and heat dissipation effect are needed in summer, the heat dissipation window 16 can be removed or replaced with a heat dissipation window 16 with air holes 13, etc., while in winter, the heat dissipation window 16 can be a plate structure without air holes 13, which can achieve certain heat preservation effect.

[0048] Further, in some embodiments, the upper wall of the upper shell 11 is provided with an openable upper cover 14, which is snap-connected with the upper shell 11. The upper cover 14 and the upper shell 11 are snap-connected, which is convenient for internal inspection, etc. It should be noted that the specific structure design of the snap connection between the upper cover 14 and the upper shell 11 in the utility model is not limited, which can be selected by the person skilled in the art according to the actual situation, and all belong to the protection scope of the utility model.

[0049] Further, the middle part of the accommodating cavity of the lower shell 10 is provided with two support plates 15 spaced apart along the width direction, forming a layered accommodating cavity; wherein the upper part of the support plate 15 is provided with the hydrogen storage bottle 4, and the lower part is provided with the fuel cell stack 3, realizing layered independent storage, reducing the mutual interference between the hydrogen storage bottle 4 and the fuel cell stack 3, etc.

[0050] The support plate 15 is provided with an arc-shaped groove 151, and a plurality of belt perforations 152 are also provided.

[0051] The hydrogen storage bottle 4 is placed in the arc-shaped groove 151 of the support plate 15, and the belt successively penetrates the belt perforations 152 located on both sides of the hydrogen storage bottle 4, realizing the fixation of the hydrogen storage bottle 4.

[0052] The arc-shaped groove 151 provided on the support plate 15 is matched with the outer contour of the hydrogen storage bottle 4, when the hydrogen storage bottle 4 is placed in the arc-shaped groove 151, the bottle body can be in close contact with the groove wall, supporting and restraining the hydrogen storage bottle 4. Compared with flat placement, the arc-shaped groove 151 greatly increases the contact area of the hydrogen storage bottle 4 and the support plate 15, effectively disperses the gravity of the hydrogen storage bottle 4 and various forces generated during the flight of the unmanned aerial vehicle, such as impact force caused by vibration and jolt, etc., thereby significantly improving the stability of the placement of the hydrogen storage bottle 4 and reducing the risk of displacement, shaking or even overturning of the hydrogen storage bottle 4 during flight.

[0053] Meanwhile, the hydrogen storage bottle 4 is further fixed by the straps which are sequentially threaded through the strap perforations 152 on both sides of the hydrogen storage bottle 4, thereby providing additional constraints for the hydrogen storage bottle. The straps have certain elasticity and strength, and can tightly hold the hydrogen storage bottle after being tightened, thereby preventing displacement of the hydrogen storage bottle in the arc-shaped groove 151. The double fixing mode (arc-shaped groove support combined with strap constraint) cooperates with each other to form a stable fixing system, thereby ensuring that the hydrogen storage bottle can remain stable under various complex flight conditions, and thereby ensuring the reliability of the hydrogen supply link in the unmanned aerial vehicle power system.

[0054] Further, in some embodiments, the box assembly 2 comprises a support frame assembly and a box body 20 mounted on the support frame assembly.

[0055] The support frame assembly comprises a first U-shaped frame 21 and a second U-shaped frame 22 symmetrically mounted on the left and right sides of the lower shell 10, and a II-shaped support member sequentially connected by a first horizontal rod 23, a first vertical rod 24, a second horizontal rod 25 and a second vertical rod 26.

[0056] The front and rear ends of the first vertical rod 24 and the second vertical rod 26 are respectively connected to the two side rods of the corresponding first U-shaped frame 21 and second U-shaped frame 22.

[0057] The two sides of the box body 20 are detachably mounted on the first horizontal rod 23 and the second horizontal rod 25, or mounted on the first vertical rod 24 and the second vertical rod 26.

[0058] The first horizontal rod 23, the second horizontal rod 25, the first vertical rod 24 and the second vertical rod 26 of the II-shaped support member jointly provide uniform support for the box body 20. The box body 20 is mounted on the first horizontal rod 23 and the second horizontal rod 25, or the first vertical rod 24 and the second vertical rod 26, so that the gravity of the box body can be uniformly transmitted to the entire support frame assembly, and then transmitted to the lower shell 10 through the U-shaped frame, thereby avoiding the case of excessive local stress, effectively improving the load-carrying capacity of the support frame assembly for box bodies 20 of different weights and shapes, and widening the range of box bodies that can be carried by the unmanned aerial vehicle.

[0059] Meanwhile, the box body 20 is detachably mounted on the first horizontal rod 23 and the second horizontal rod 25, or mounted on the first vertical rod 24 and the second vertical rod 26, so that users can quickly replace the box body 20 with different functions according to different operation requirements, thereby greatly improving the use flexibility and application range of the unmanned aerial vehicle.

[0060] Specifically, the first cross bar 23, the first longitudinal bar 24, the second cross bar 25, the second longitudinal bar 26 and the connecting part between the side bar 27 of the first U-shaped frame 21 and the second U-shaped frame 22 are all provided with a communication joint 28, through which the quick disassembly and assembly between different bars can be realized.

[0061] Specifically, the first U-shaped frame 21 and the second U-shaped frame 22 can be further provided with a reinforcing rib 29, which can increase the overall strength of the support frame assembly.

[0062] The above has further described the utility model by means of specific embodiments, but it should be understood that the specific description here should not be understood as the limitation of the essence and scope of the utility model, and various modifications made to the above embodiments by the ordinary skilled in the art after reading the specification all belong to the scope protected by the utility model.

Claims

1. A multi-functional unmanned aerial vehicle, characterized by: It includes a fuselage assembly, a power assembly arranged at four corners of the fuselage assembly respectively, and a box assembly arranged at the bottom of the fuselage assembly; The fuselage assembly includes a lower shell and an upper shell detachably mounted above the lower shell; The lower shell is internally provided with a containing cavity, the containing cavity is provided with a fuel cell stack and a hydrogen storage bottle communicated with the fuel cell stack, the fuel cell stack is used for providing power for the unmanned aerial vehicle, and the hydrogen storage bottle provides hydrogen required for reaction of the fuel cell stack; The box assembly is detachably mounted at the bottom of the lower shell, and is used for carrying various different equipment or materials.

2. The multifunctional unmanned aerial vehicle according to claim 1, characterized in that: Two clamping seats are arranged on the left and right side walls of the lower shell and are spaced apart and staggered in the height direction, and the two clamping seats are respectively used for clamping the arm of the power assembly close to one side.

3. The multifunctional unmanned aerial vehicle according to claim 2, characterized in that: The clamping end of the clamping seat is formed with a C-shaped groove for clamping the arm.

4. The multifunctional unmanned aerial vehicle according to claim 1, characterized in that: A plurality of groups of exhaust fan pieces are arranged at the bottom of the lower shell.

5. The multifunctional unmanned aerial vehicle according to claim 1, characterized in that: The upper shell and the rear wall of the lower shell are both provided with a plurality of regularly arranged air holes.

6. The multifunctional unmanned aerial vehicle according to claim 1, characterized in that: An openable heat dissipation window is arranged on the front wall of the lower shell, and the heat dissipation window is detachably connected with the lower shell.

7. The multifunctional unmanned aerial vehicle according to claim 1, characterized in that: An openable upper cover is arranged on the upper wall of the upper shell, and the upper cover is buckle-connected with the upper shell.

8. The multifunctional unmanned aerial vehicle according to claim 1, characterized in that: Two support plates are arranged at the middle part of the containing cavity of the lower shell and are spaced apart along the width direction, the hydrogen storage bottle is arranged above the support plates, and the fuel cell stack is arranged below the support plates.

9. The multifunctional unmanned aerial vehicle according to claim 8, characterized in that: An arc-shaped groove is arranged on the support plate, and a plurality of belt perforations are arranged in the arc-shaped groove; The hydrogen storage bottle is arranged in the arc-shaped groove of the support plate, and a belt is sequentially penetrated through the belt perforations on the two sides of the hydrogen storage bottle, so as to fix the hydrogen storage bottle.

10. The multifunctional unmanned aerial vehicle according to claim 1, characterized in that: The box assembly includes a support frame assembly and a box body mounted on the support frame assembly; The support frame assembly includes a first U-shaped frame and a second U-shaped frame symmetrically mounted on the left and right sides of the lower shell, and a II-shaped support piece, the II-shaped support piece is sequentially connected by a first horizontal rod, a first vertical rod, a second horizontal rod and a second vertical rod; The front and rear ends of the first vertical rod and the second vertical rod are respectively connected with the two side rods of the corresponding first U-shaped frame and second U-shaped frame; The two sides of the box body are detachably mounted on the first horizontal rod and the second horizontal rod, or are mounted on the first vertical rod and the second vertical rod.

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