Heat-dissipating aircraft canopy

Abstract

Due to the recent rise in temperatures, heat countermeasures for drone control equipment are becoming necessary. We provide a canopy for aircraft with a heat dissipation structure that prevents the temperature inside the canopy from becoming too high. [Solution] The upper part of the canopy is made of corrugated sheets and heat dissipation fins, and the temperature inside the canopy is lowered by leaving a small space and installing a radiation heat shield.

Description

[Technical Field]

[0001] The present invention relates to a heat dissipation structure for a multicopters that flies by attaching three or more propellers facing upward or downward, and a fixed-wing aircraft (hereinafter referred to as a drone) that has the functions of a multicopters in addition to the functions of a multicopters. [Background technology]

[0002] In recent years, temperatures have risen due to global warming, which has increased the thermal load on drone control devices in the summer. Furthermore, if drones are designed with a semi-enclosed structure so that they can fly even in rainy weather, it becomes difficult to take in and expel outside air, causing the internal temperature to rise. There was a problem in that when the temperature inside the canopy that forms the drone's control equipment room became too high, the performance of the control equipment would deteriorate. [Prior art documents]

[0003] [Patent Document 1] WO-A1-2021 / 166140 Application No. 2018-530178 Application No. 2018-502047 Application No. 2019-159605 Summary of the Invention [Problem to be solved by the invention]

[0004] The causes of the temperature rise inside the canopy, which is the drone's control equipment room, include high air temperatures, temperature rise due to direct sunlight, temperature rise due to heat generated by the internal control equipment, and increased airtightness inside the drone. Previous literature describes a structure that cools the heat-generating elements themselves to prevent heat generation, but it is also necessary to consider the temperature rise from direct sunlight from the outside. [Means for solving the problem]

[0005] In order to solve the above problem, the invention of claim 1 First, to address the temperature rise caused by heat generated from the internal control equipment, the canopy top plate is made of a corrugated or heat-dissipating fin structure, which increases the surface area and increases the efficiency of transferring heat to the outside air due to the temperature difference between the inside and outside air. wipe Regarding the temperature rise on the inside of the canopy due to radiant heat, if the surface area is increased by using a corrugated sheet structure or a heat dissipation fin structure, the amount of heat transfer increases accordingly, which in turn causes the temperature to rise. Therefore, the corrugated sheet top wipe The heat radiation shielding plate is attached to the top plate with a certain distance between them. [Effects of the Invention]

[0006] The heat generated by the equipment inside the canopy is dissipated into the outside air through the corrugated sheet and heat insulating fins on the canopy top plate by convection, and is then absorbed by the heat from sunlight. wipe Regarding radiant heat, it is attached to the top of the canopy. wipe The heat-shielding effect of the radiation heat shielding plate itself and the heat-dissipating effect of the space between the top plates prevent heat transfer to the inside of the canopy, thereby suppressing the temperature rise inside the canopy. [Brief explanation of the drawings]

[0007] [Figure 1] Drone top view [Figure 2] Drone elevation view [Figure 3] Canopy cross section DETAILED DESCRIPTION OF THE INVENTION

[0008] Figures 1 and 2 show the configuration diagram of the drone. Figure 3 shows the canopy and wipe 1 shows a cross-sectional view of a radiation heat shield plate. As shown in Figure 3, the canopy top plate 12 is a corrugated plate, and stays 7 are attached to the top plate in several places. wipe A radiation heat shielding plate 6 is fixed. wipe The radiation heat shielding plate 6 is not only made of metal, but also effectively made of a material with low thermal conductivity or a heat insulating material. sunlight wipe A space 10 is provided between the radiation heat shielding plate 6 and the canopy top plate 12 to prevent solar heat from being transmitted to the canopy top plate 12. Also, during flight, the canopy top 12 and wipe By allowing wind to flow through the gap between the canopy and the radiation heat shielding plate 6, the heat transfer coefficient can be increased and the temperature inside the canopy can be made closer to the temperature of the atmosphere. [Explanation of symbols]

[0011] 1 Drone body 2 motor arms 3 propellers 4 motors 5 Canopy 6 wipe Radiation heat shield plate 7 Stay 8. Insulation 9. Control Equipment 10 Space 11 Wind Flow 12 Canopy top (corrugated sheet)

Claims

[Claim 1] A canopy for an aircraft with a heat dissipation structure, characterized in that the top plate of the canopy surrounding the control equipment room of the drone body has a corrugated structure and a radiant heat shielding plate is attached to the top plate using several stays so as to create a certain distance of space above it, thereby ensuring a heat dissipation space through convection, promoting heat dissipation, and reducing radiant heat transfer due to sunlight.

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