Water-resistant aircraft

Abstract

We provide a drone structure that can prevent rainwater from entering. [Solution] This drone features a cover 7 attached to the outer perimeter of the drone body to minimize water ingress and a water-blocking plate 9 attached to the inside of the drone body to completely prevent water ingress while maintaining communication with the outside air.

Description

Technical Field

[0001] The present invention relates to a drip-proof structure for a multicopter that performs flight by attaching three or more propellers upward or downward, or a fixed-wing aircraft (hereinafter referred to as a drone) with the function of a multicopter.

Background Art

[0002] Conventional drones are premised on flight in sunny weather, and the countermeasures against flight in rainy weather are not sufficient.

Prior Art Documents

[0003]

Patent Document 1

Patent Documents

Summary of the Invention

Problems to be Solved by the Invention

[0004] A flight controller for controlling the flight of a drone is installed inside the drone body, and a pressure sensor for measuring the height of the drone is installed. Therefore, there is a problem that the drone body cannot be made airtight to prevent rainwater from entering (in order to accurately measure the atmospheric pressure of the outside air and control the altitude of the drone). Although the prior art shows a structure in which the upper surface exposed to rain is covered and the lower surface is open, it is necessary to consider that water may enter from the lower surface even when the wind is strong and swirling.

Means for Solving the Problems

[0005] In order to solve the above problems, in 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 on the drone body, and the outer circumference between the upper and lower frames is covered with a cover that has a communication hole at the bottom to prevent water from entering around the lower frame. A water-blocking plate with a communication hole at the top is provided inside the cover of the upper and lower frames in the direction toward the center of the body, between the upper and lower frames. The water-blocking plate surrounds the equipment that controls the drone, preventing water from entering the equipment, while also allowing communication with the outside air through the communication hole at the top. [Effects of the Invention]

[0006] In this way, while maintaining communication with the atmosphere through the lower opening of the outer cover, water intrusion can be limited to the lower outside of the drone's internal watertight plate, and water intrusion can be prevented while maintaining communication with the atmosphere through the watertight plate with an opening at the top of the central interior. The communication opening at the bottom of the outer cover also helps drain any water that enters the interior, and since water droplets are carried away by the wind, it also helps to weaken the wind's force. The internal watertight plate prevents water droplets from getting on the control equipment. The connections between the upper and lower frames are sealed with gaskets and sealants, and the communication holes are located at the top. This structure prevents water from entering the control equipment in the center of the drone while ensuring airflow, allowing for safe flight even in rainy weather. [Brief explanation of the drawing]

[0007] [Figure 1] Cross-sectional view of a drone in plan view (BB) [Figure 2] Cross-sectional view of the drone (AA) [Figure 3] Cross-section of the drone body, showing the part without the motor arm. [Figure 4] Cross-section of the drone body, showing the part with the motor arm. [Figure 5] Enlarged cross-sectional view of the drone body in a plan view. [Modes for carrying out the invention]

[0008] Figures 1 and 2 show cross-sectional views of a drone in a plan and elevation configuration, respectively. Figure 3 shows a cross-sectional view of the drone body, detailing the section without the motor arm. Figure 4 is a cross-sectional view of the drone body, showing details of the section containing the motor arm. To prevent rainwater from entering, first attach the cover 7 to the outer perimeter of the upper and lower frames 5 and 6 of the drone body 1. The cover 7 has a communication opening 8 on its lower side, allowing some of the air 12 and rainwater 14 to enter the interior with the wind. Some of the rainwater 14 enters through a small communication opening at the bottom of the cover 7, thus being limited to the upper surface of the lower frame 6. 11 indicates rainwater that has entered through the communication opening 8. The wind is slowed down as it passes through the small communication opening 8. Due to the water-blocking plate 9 inside the drone body, these rainwaters cannot enter the control equipment room 15 and are instead discharged through the communication opening 8 in the cover 7. At the same time, air 12 is introduced into the control equipment room 15 through the communication opening 10 which opens at the top of the water-blocking plate 9. This allows the drone to prevent water from entering without losing control. Figure 5 shows a magnified cross-sectional view of the drone body in plan view. [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. Communication port on the outer cover of the drone body. 9. Water-blocking plate inside the drone body 10. Communication opening of the watertight plate inside the drone body 11. Rainwater that has entered the interior 12 Atmospheric flow 13 Control equipment 14 Rainwater 15 Control Equipment Room 16 Canopy 17 Motor Arm Fastener 18 Water Stop Gasket or Adhesive

Claims

[Claim 1] A drip-proof aircraft comprising a multicopter in which control equipment is mounted in the center of the main body, the aircraft comprising a cover that covers the outer circumference between the upper and lower frames of the control equipment and has a communication hole at the bottom, and a water-stopping plate with a communication hole at the top, located between the upper and lower frames in the direction of the center of the main body of the cover.

Images