Weatherproof aircraft

Abstract

To provide a drone structure capable of preventing rainwater from entering. [Solution] This drone is characterized by a cover 7 attached to the outer periphery of the drone body to prevent water from entering the inside of the drone body, minimizing the amount of water that enters, and a water stop plate 9 attached to the inside of the drone body to completely prevent water from entering while allowing communication with the outside air.

Description

[Technical Field]

[0001] The present invention relates to a waterproof structure for a multicopters that flies by attaching three or more propellers facing upward or downward, or a fixed-wing aircraft (hereinafter referred to as a drone) that has added multicopters' functions. [Background technology]

[0002] Conventional drones are designed to fly only on clear days, and are not adequately equipped for flying in the rain. [Prior art documents]

[0003] [Patent Document 1] Patent No. 6661136 Patent No. 7495845 Utility Model Registration No. 3220588 [Patent documents] Summary of the Invention [Problem to be solved by the invention]

[0004] The flight controller that controls the drone's flight is installed inside the drone body and is equipped with a barometric pressure sensor to measure the drone's height. This posed a problem in that the drone body could not be sealed to prevent rainwater from entering (in order to accurately measure the outside air pressure and control the drone's altitude). Previous literature shows a structure in which the top surface, which is exposed to rain, is covered and the bottom surface is open, but it is necessary to consider that water may enter from the bottom surface when the wind is strong and the cover is rolled up. [Means for solving the problem]

[0005] In order to solve the above problem, the invention of claim 1 This multicopter has a structure in which radially extending motor arms are sandwiched and fixed between upper and lower frames in the drone body, and the outer periphery between the upper and lower frames is covered with a cover with a communication hole at the bottom, preventing water from entering around the lower frame. A water stop plate with a communication hole at the top is provided between the upper and lower frames, inside the cover toward the center of the main body. The water stop plate surrounds the equipment that controls the drone, preventing water from entering the equipment and allowing communication with the outside air through a communication hole at the top. [Effects of the Invention]

[0006] In this way, the lower opening of the outer cover allows communication with the atmosphere, while water intrusion is limited to the lower outside of the drone's internal water stop plate, and the water stop plate with an opening hole at the top inside toward the center prevents water intrusion while allowing communication with the atmosphere. The communication port at the bottom of the outer cover also helps to drain any water that has entered the interior, and since water droplets are carried along with the wind, it also serves to weaken the force of the wind. The internal water stop panels are waterproofed with gaskets and sealants at the connections between the upper and lower frames to prevent water droplets from getting on the control equipment, and there is a communication hole at the top. This structure prevents water from entering the control equipment at the center of the drone and ensures atmospheric communication, allowing it to fly safely even in rainy weather. [Brief explanation of the drawings]

[0007] [Figure 1] Cross-section of the drone (BB) [Figure 2] Elevation section of drone (AA) [Figure 3] Cross-section of the drone body without the motor arm [Figure 4] Cross-section of the drone body, showing the motor arm [Figure 5] Enlarged cross-sectional view of the drone body DETAILED DESCRIPTION OF THE INVENTION

[0008] Figures 1 and 2 show plan and elevation cross-sectional views of an embodiment of a drone. Figure 3 is a cross-sectional view of the drone body showing details of the part without the motor arm. Figure 4 is a cross-sectional view of the drone body showing details of the area where the motor arm is located. To prevent rainwater from entering, first, a cover 7 is attached to the outer periphery of the upper and lower frames 5 and 6 of the drone body 1. This cover 7 has a communication port 8 on the bottom side, and air 12 and some rainwater 14 enter the interior along with the wind. Some of the rainwater 14 enters through a small communication port at the bottom of the cover 7, so it is limited to the area around the top surface of the lower frame 6. 11 indicates the rainwater that enters through the communication port 8. The wind is slowed down by passing through the small communication opening 8. The water stop 9 inside the drone body prevents this rainwater from entering the control equipment room 15 and is discharged through the communication port 8 in the cover 7. At the same time, the air 12 is introduced into the control equipment room 15 through the communication port 10 that opens at the top of the water stop 9. This prevents water from entering the drone without causing it to lose control. Figure 5 shows an enlarged cross-sectional view of the drone body. [Explanation of symbols]

[0011] 1 Drone body 2 motor arms 3 propellers 4 motors 5 Drone body upper frame 6 Drone body lower frame 7 Drone body outer cover 8 Drone body Outer cover communication port 9 Drone body internal water stop 10. Drone body: Internal water stopper opening 11 Rainwater entering the building 12 Atmospheric Flow 13 Control equipment 14 Rainwater 15 Control Equipment Room 16 Canopy 17 Motor arm fixing hardware 18 Water-stopping gaskets and adhesives

Claims

[Claim 1] A multicopter with a structure in which a radially extending motor arm is clamped and fixed between upper and lower frames at the center of the motor arm, the outer periphery between the upper and lower frames is covered with a cover with a communication opening at the bottom, and the communication opening at the bottom of the cover is opened approximately evenly around the entire circumference, and a water stop plate with a communication opening at the top between the upper and lower frames is located inside the cover toward the center of the main body, and is attached at the center of the multicopter so as to surround the equipment that controls the multicopter, and the communication opening at the top of the water stop plate is opened approximately evenly around the entire circumference. A drip-proof aircraft characterized by this.

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