Charger nest device capable of automatically centering and aligning airflow

Abstract

The utility model discloses a charger nest device capable of automatically centering and aligning airflow in the related technical field of automatic charging of multi-rotor unmanned aerial vehicles, which comprises an unmanned aerial vehicle main body and a nest platform, a battery box is arranged at the bottom of the unmanned aerial vehicle main body, and a hexagonal centering block is fixedly mounted below the battery box. A hexagonal centering block is arranged in the center of the nest platform, positive and negative electrode contacts are arranged on the side edges of the hexagonal centering block, a hexagonal centering groove is formed in the center of the nest platform, positive and negative electrode copper sheets are arranged on the side edges of the hexagonal centering groove, and a nest box is arranged in the middle of the lower portion of the nest platform. The hexagonal centering block is arranged below the unmanned aerial vehicle main body, the hexagonal centering groove matched with the hexagonal centering block is formed in the nest platform, and the hexagonal structure with the lower portion being the guide slope is adopted, so that the problems of automatic centering and automatic orientation alignment under the condition that a small amount of positioning deviation exists during landing of the unmanned aerial vehicle are solved; the problem of reliable charging of the multi-rotor unmanned aerial vehicle is effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to automatic charging of multi-rotor unmanned aerial vehicles, and specifically relates to a charging machine nest device with automatic centering and alignment of airflow. Background Art

[0002] With the continuous improvement of multi-rotor UAV technology, it has shown broad application prospects in many fields, but its battery life and power supply problems have not been effectively improved. Under the premise that there is no breakthrough research progress in the energy density of power batteries, multi-rotor UAV systems can usually only last for 10min-30min. The limited battery life causes multi-rotor UAVs to only perform short-distance and small-scale operations, which seriously limits the application of multi-rotor UAVs. In addition, with the development of UAV inspections and operations towards unmanned operation, new requirements are put forward for UAV autonomous power supply technology. At present, there are mainly the following ways to automatically charge UAVs:

[0003] Wireless induction automatic charging: A coil is pre-arranged under the landing platform of the machine nest, and a receiving coil is also arranged at the bottom of the drone. Wireless charging is completed based on the principle of electromagnetic induction. This method does not require high landing accuracy of the drone, but the charging efficiency is low. The electromagnetic coil at the bottom of the drone adds extra weight to the drone, which will further shorten the flight time.

[0004] Automatic battery replacement platform of the machine nest: Use the internal manipulator of the machine nest to replace the fully charged battery for the drone. The drone enters the automatic machine nest and the battery is replaced by the manipulator. The advantage is fast speed and no long waiting time (long charging time). Disadvantages: The drone is required to land precisely in a specific area, the airport versatility is poor, the mechanical structure is complex, the airport construction cost and maintenance cost are high, and the ability to withstand outdoor environment is poor.

[0005] Platform with mechanical return to center: UAV landing cannot guarantee zero deviation, and contact charging is used to solve the problem of landing point deviation. Generally, mechanical return to center rods in the horizontal XY directions are set on the landing platform of the nest to push the drone to the center of the nest, and then contact the charging contacts to achieve automatic charging. This method increases the structural complexity of the drone nest and increases the cost. In addition, the motor is prone to jamming during the pushing process.

[0006] In view of this, the present utility model is proposed. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a charger nest device with automatic airflow centering and alignment. To solve the above technical problem, the basic concept of the technical solution adopted by the utility model is:

[0008] A charging nest device with automatic airflow centering and alignment comprises an unmanned aerial vehicle (UAV) body and a nest platform, wherein a battery box is arranged at the bottom of the UAV body, a hexagonal centering block is fixedly installed below the battery box, positive and negative contacts are arranged on the sides of the hexagonal centering block, a hexagonal centering groove is opened at the center of the nest platform, positive and negative copper sheets are arranged on the sides of the hexagonal centering groove, an unmanned aerial vehicle (UAV) box body is arranged in the middle position below the nest platform, a voltage-stabilizing power supply is arranged in the nest box body, and UAV batteries and a voltage balancing block are arranged in the battery box.

[0009] As a further solution of the utility model: the hexagonal centering block is a hexagonal honeycomb shape, the lower part of the hexagonal centering block is a guiding slope structure, and the upper opening of the hexagonal centering groove is provided with a guiding slope to facilitate automatic return to center and automatic alignment of the drone during landing.

[0010] As a further solution of the utility model: the size specifications of the positive and negative copper sheets are larger than the size specifications of the positive and negative contacts, and the charging process has good adaptability.

[0011] As a further solution of the utility model: the positive and negative copper sheets are electrically connected to the positive and negative electrodes of the voltage-stabilized power supply, and the positive and negative contacts are electrically connected to the positive and negative electrodes of the drone battery.

[0012] As a further solution of the utility model: the nest platform is provided with peripheral air outlets to reduce the reverse force when the drone body lands, and auxiliary support rods are arranged on the periphery below the nest platform.

[0013] As a further solution of the utility model: a wing is installed on the outer side of the drone body, and a propeller is installed on the upper end of the wing.

[0014] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0015] A hexagonal centering block is arranged under the main body of the UAV of the utility model, and a hexagonal centering groove matched with the block is arranged on the machine nest platform. The hexagonal structure with a guide slope at the bottom solves the problems of automatic centering and automatic alignment when the UAV has a small positioning deviation when landing, and effectively solves the problem of reliable charging of multi-rotor UAVs.

[0016] The utility model adopts a contact charging method, without an electromagnetic conversion process, and has high charging efficiency. In addition, it adds a function of automatic wind centering during the landing of the drone, which solves the problems of zero position deviation and direction deviation. The ground charging end of this solution has no moving parts, high reliability, low cost, and no risk of jamming during landing.

[0017] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are part of this application and are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model, but do not constitute an improper limitation on the utility model. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the main body of the UAV of the utility model;

[0021] Figure 3 This is the front view of the machine nest structure of the utility model;

[0022] Figure 4 This is a bottom view of the main body of the UAV of the utility model;

[0023] Figure 5 It is a top view of the machine nest platform of the utility model.

[0024] In the figure: 1. UAV body; 2. Machine nest platform; 3. Hexagonal centering groove; 4. Positive and negative copper sheets; 5. Auxiliary support rods; 6. Wings; 7. Propellers; 8. Machine nest box; 9. UAV battery; 10. Voltage balance block; 11. Hexagonal centering block; 12. Positive and negative contacts; 13. Voltage stabilized power supply.

[0025] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0027] like Figures 1 to 5As shown, a charging nest device with automatic airflow centering and alignment includes a drone body 1 and a nest platform 2. A battery box 8 is arranged at the bottom of the drone body 1, a hexagonal centering block 11 is fixedly installed below the battery box 8, and positive and negative contacts 12 are arranged on the sides of the hexagonal centering block 11. A hexagonal centering groove 3 is opened at the center of the nest platform 2, and positive and negative copper sheets 4 are arranged on the sides of the hexagonal centering groove 3. A nest box body 14 is arranged in the middle position below the nest platform 2, a voltage-stabilizing power supply 13 is arranged in the nest box body 14, and drone batteries 9 and a voltage balancing block 10 are arranged in the battery box 8.

[0028] Among them, the hexagonal centering block 11 is a hexagonal honeycomb shape, the lower part of the hexagonal centering block 11 is a guiding slope structure, and the upper opening of the hexagonal centering groove 3 is provided with a guiding slope to facilitate the automatic return to center and automatic alignment of the drone during landing.

[0029] The dimensions of the positive and negative copper sheets 4 are larger than those of the positive and negative contacts 12, so the charging process has good adaptability.

[0030] The positive and negative copper sheets 4 are electrically connected to the positive and negative electrodes of the voltage-stabilized power supply 13 , and the positive and negative contacts 12 are electrically connected to the positive and negative electrodes of the drone battery 9 .

[0031] The nest platform 2 is provided with peripheral air outlets to reduce the reverse force of the drone body 1 when it lands. An auxiliary support rod 5 is provided at the periphery below the nest platform 2 .

[0032] A wing 6 is installed on the outer side of the drone body 1 , and a propeller 7 is installed on the upper end of the wing 6 .

[0033] The working principle of the utility model is as follows: a hexagonal centering block 11 is arranged below the drone body 1 for guidance, and positive and negative contacts 12 of the power supply are arranged on the side of the hexagonal centering block 11 and connected to the positive and negative electrodes of the drone battery 9. A concave hexagonal centering groove 3 guiding structure is arranged at the center of the charging ground-end machine nest platform 2, and positive and negative copper sheets 4 are arranged on the side and connected to the positive and negative electrodes of the ground voltage-stabilizing source. When the drone body 1 lands, it has a certain landing deviation due to disturbance. The lower part of the hexagonal centering block 11 is a guiding slope structure. When the drone lands within the range, it will automatically glide to the charging area of ​​the hexagonal centering groove 3, and the charging circuit of the drone battery 9 will be connected to complete automatic charging. The voltage of the ground-end charging voltage-stabilizing power supply 13 is set to the full-charge voltage of the airborne battery. The voltage balancing block 10 will also ensure the balance of the battery voltage. When charging is completed, the drone battery 9 is in a safe state.

[0034] The design of the structural parts effectively solves the problem of unreliable charging caused by position deviation during the landing of the multi-rotor UAV. The fixed honeycomb structure has good scalability and simple structure. After the prototype is debugged, a continuous automatic charging test is carried out. After more than 200 consecutive takeoffs and landings, the mechanism can effectively complete the charging. The experimental results show that the scheme is reasonably designed, reliable in operation, and easy to use.

[0035] When in use, connect the voltage-stabilized power supply 13 and the 220V mains, install the hexagonal centering block 11 to the bottom of the drone body 1, connect the drone battery 9 to the voltage balance block 10, connect the voltage-stabilized power supply 13 and the 220V mains, place the voltage-stabilized power supply 13 in the machine nest box 14, connect the drone power supply, the drone takes off, performs the flight mission, and the drone returns and lands on the machine nest platform 2. The voltage-stabilized power supply 13 charges the drone battery 9. When charging is almost finished, the voltage balance block 10 starts to work to ensure that the voltage of multiple cells of the drone battery 9 is balanced;

[0036] Compared with the wireless charging solution, this solution adopts contact charging, which has no electromagnetic conversion process and high charging efficiency. In addition, it adds the function of automatic wind centering during the landing of the drone, solving the problems of zero position deviation and orientation deviation.

[0037] Compared with the automatic charging solution with auxiliary manipulator battery replacement, this solution has no mechanical return mechanism, no mechanical arm action mechanism, light weight, no moving parts at the ground charging end, high reliability and low cost;

[0038] Compared with the platform solution with mechanical return to center, this solution has no mechanical return to center mechanism, low cost, high reliability, and no risk of jamming during landing.

[0039] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A charging nest device with automatic airflow centering and alignment, comprising an unmanned aerial vehicle body (1) and a nest platform (2), characterized in that: A battery box (8) is arranged at the bottom of the drone body (1), a hexagonal centering block (11) is fixedly installed below the battery box (8), and positive and negative contacts (12) are arranged on the sides of the hexagonal centering block (11), a hexagonal centering groove (3) is opened at the center of the machine nest platform (2), and positive and negative copper sheets (4) are arranged on the sides of the hexagonal centering groove (3), a machine nest box (14) is arranged at the middle position below the machine nest platform (2), a voltage-stabilized power supply (13) is arranged in the machine nest box (14), and drone batteries (9) and a voltage balancing block (10) are arranged in the battery box (8).

2. The charger nest device with automatic airflow centering and alignment according to claim 1 is characterized in that: The hexagonal centering block (11) is in a hexagonal honeycomb shape, the lower part of the hexagonal centering block (11) is a guiding slope structure, and the upper opening of the hexagonal centering groove (3) is provided with a guiding slope.

3. The charger nest device with automatic airflow centering and alignment according to claim 2 is characterized in that: The dimensions of the positive and negative electrode copper sheets (4) are greater than the dimensions of the positive and negative electrode contacts (12).

4. The charger nest device with automatic airflow centering and alignment according to claim 3 is characterized in that: The positive and negative copper sheets (4) are electrically connected to the positive and negative electrodes of the voltage-stabilized power supply (13), and the positive and negative electrode contacts (12) are electrically connected to the positive and negative electrodes of the drone battery (9).

5. The charger nest device with automatic airflow centering and alignment according to claim 4 is characterized in that: The machine nest platform (2) is provided with a peripheral air outlet, and an auxiliary support rod (5) is provided at the periphery below the machine nest platform (2).

6. The charger nest device with automatic airflow centering and alignment according to claim 5, characterized in that: A wing (6) is installed on the outer side of the drone body (1), and a propeller (7) is installed on the upper end of the wing (6).

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