A drone protective cover and a rotary-wing drone

Abstract

This invention discloses a drone protective cover and a rotary-wing drone. The drone protective cover includes a cover body and a first air duct cover and a second air duct cover respectively installed on both sides of the cover body. The first air duct cover and the cover body together form a first air duct; the second air duct cover and the cover body together form a second air duct; a first through hole is formed on the shell of the cover body covered by the first air duct cover; a second through hole is formed on the shell of the cover body covered by the second air duct cover. This design provides excellent protection for the drone while ensuring good air intake for the engine in the power system, thereby improving engine output power and heat dissipation.

Description

Technical Field

[0001] This invention relates to the field of rotary-wing drones, and more particularly to a drone protective cover and a rotary-wing drone. Background Technology

[0002] Hybrid electric rotorcraft (HEV) drones are gradually becoming an important development direction for industrial-grade rotorcraft due to their advantages such as large payload capacity and long flight time. However, HEV drones use an internal combustion engine to drive a generator to produce electricity, and the entire power generation system inevitably has the characteristics of being larger, heavier, generating more heat, and vibrating more compared to the power supply system of a pure electric rotorcraft. Therefore, the protective covers of existing battery-powered rotorcraft are not suitable for HEV drones. Patent No. ZL 201820403697.0 discloses a protective cover for a rotorcraft. While this cover provides good protection for the drone, the fact that the entire power system, especially the engine air intake, is located inside the cover reduces the power output and affects power delivery. Furthermore, it generates significant noise during flight, requiring further improvement. Summary of the Invention

[0003] The technical problem to be solved by this invention is: in view of the technical problems existing in the prior art, this invention provides a drone protective cover and rotary-wing drone that can provide good protection for drones, ensure good air intake of the engine in the power system, thereby improving the engine output power and heat dissipation.

[0004] To solve the above-mentioned technical problems, the technical solution proposed by the present invention is: a drone protective cover, including a cover body, and a first air duct cover and a second air duct cover respectively installed on both sides of the cover body;

[0005] The first air duct cover and the cover together form the first air duct;

[0006] The second air duct cover and the cover together form the second air duct;

[0007] The housing covered by the first air duct cover has a first through hole; the housing covered by the second air duct cover has a second through hole.

[0008] Furthermore, the portion of the cover covered by the first airway cover is recessed inward; the portion of the cover covered by the second airway cover is recessed inward.

[0009] Furthermore, the first airway cover has a third through hole, and / or the second airway cover has a fourth through hole.

[0010] Furthermore, the first through hole and the third through hole are located on the same axis; the second through hole and the fourth through hole are located on the same axis.

[0011] Furthermore, multiple raised fins are provided on the inner side of the first airway cover.

[0012] Furthermore, the opening at the front end of the first airway is larger than the opening at the rear end; the opening at the front end of the second airway is larger than the opening at the rear end.

[0013] Furthermore, the inner surface of the second airway cover is also covered with a sound-absorbing layer.

[0014] Furthermore, the top of the first airway cover is recessed towards the center, and the bottom extends outward;

[0015] The top of the second airway cover is recessed towards the center, and the bottom extends outward.

[0016] Furthermore, an installation component is provided on the inner side of the end of the first airway cover, and the installation component is provided with screw holes, so that the first airway cover is fixed to the cover body by screws.

[0017] An mounting component is provided on the inner side of the end of the second airway cover. The mounting component has screw holes, and the second airway cover is fixed to the cover body by screws.

[0018] A rotary-wing unmanned aerial vehicle (UAV) is characterized by comprising a main body of the rotary-wing UAV and a UAV protective cover as described in any of the preceding claims;

[0019] The drone protective cover is mounted on the main body; the main body's power system is located inside the drone protective cover; the power system's exhaust pipe extends from the first through hole into the first air duct; the main body's exhaust pipe is located inside the second air duct, passes through the second through hole, and is mounted on the power system.

[0020] Compared with the prior art, the advantages of the present invention are as follows:

[0021] 1. The protective cover of the present invention has a first air duct and a second air duct. The air intake of the power system of the UAV is set in the first air duct, thereby increasing the air intake volume of the power system air intake and thus increasing the output power of the power system. The exhaust pipe is set in the second air duct, so that the heat emitted by the exhaust pipe can be directly discharged through the second air duct and will not accumulate in the protective cover, reducing the heat in the protective cover and improving the heat dissipation effect.

[0022] 2. The protective cover of the present invention has a large opening at the front end of the first air passage, and the air passage is also provided with protruding fins, which causes the airflow passing through the first air passage to be disturbed, thereby increasing the pressure in the first air passage, further increasing the air intake of the power system, and increasing the power of the power system.

[0023] 3. The inner side of the second air duct cover of the protective cover of the present invention is also provided with a sound-absorbing layer, which effectively reduces the noise generated by the drone's power system; at the same time, the larger opening at the front end of the second air duct can also increase the amount of gas passing through the second air duct, which can carry away more heat and achieve better heat dissipation. Attached Figure Description

[0024] Figure 1 This is an exploded view of a specific embodiment of the present invention.

[0025] Figure 2 This is a stereoscopic assembly diagram of a specific embodiment of the present invention.

[0026] Figure 3 This is a schematic diagram of the first airway cover and fins of the present invention.

[0027] Figure 4 This is a cross-sectional view along the central axis of a specific embodiment of the present invention, showing the protective cover installed on a drone.

[0028] Legend: 1. Cover; 2. First air passage cover; 3. Second air passage cover; 4. Fins. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific preferred embodiments, but this does not limit the scope of protection of the present invention.

[0030] The drone protective cover in this embodiment, such as Figure 1 and Figure 2As shown, the device includes a housing, and a first air duct cover and a second air duct cover respectively installed on both sides of the housing. The first air duct cover and the housing together form a first air duct; the second air duct cover and the housing together form a second air duct. A first through hole is formed on the shell of the housing covered by the first air duct cover; a second through hole is formed on the shell of the housing covered by the second air duct cover. The portion of the housing covered by the first air duct cover is recessed inward; the portion of the housing covered by the second air duct cover is also recessed inward. In this embodiment, the UAV uses a hybrid power system, where a fuel engine drives a generator to generate electricity and provide power to the UAV's rotor. By setting up the first air duct, the engine's air intake pipe passes through the first through hole on the housing and extends into the first air duct, thereby obtaining more air, resulting in more complete combustion and greater output power. At the same time, the engine's exhaust pipe is located in the second air duct, and the air flowing through the second air duct can carry away the heat from the exhaust pipe. Since the housing isolates the exhaust pipe from the internal power system and control system, it can effectively prevent heat accumulation inside the housing, which could affect the normal operation of the UAV's power system and control system.

[0031] In this embodiment, a third through hole is provided on the first air duct cover, and / or a fourth through hole is provided on the second air duct cover. The first and third through holes are located on the same axis; the second and fourth through holes are also located on the same axis. By providing the third through hole, the end of the engine's air intake can extend directly into the third through hole, directly obtaining air from outside the first air duct cover, thereby further improving the output power of the power system. Similarly, the exhaust pipe can also directly extend the exhaust port from the fourth through hole, discharging exhaust gas to the outside of the second air duct cover instead of into the second air duct, further improving the heat dissipation effect.

[0032] In this embodiment, as Figure 4 As shown, multiple protruding fins are also provided on the inner side of the first airway cover. The opening at the front end of the first airway is larger than the opening at the rear end; the opening at the front end of the second airway is larger than the opening at the rear end. Figure 4 The diagram only illustrates the protruding state of the fins within the air passage cover; the fins can have various shapes, such as a propeller-like shape. By incorporating fins, the airflow passing through the first air passage is disturbed, thereby increasing the pressure within the first air passage and further increasing the intake volume and power of the power system. Furthermore, having a larger opening at the front end and a smaller opening at the rear end of the first air passage can also increase the pressure within the first air passage, achieving even better intake performance.

[0033] In this embodiment, the inner surface of the second air duct cover is also covered with a sound-absorbing layer. By setting a sound-absorbing layer, such as by adhering one or more layers of sound-absorbing cotton, the noise emitted through the exhaust pipe can be reduced.

[0034] In this embodiment, the top of the first air duct cover is recessed towards the center, and the bottom extends outward; the top of the second air duct cover is also recessed towards the center, and the bottom extends outward. A mounting component with screw holes is provided on the inner side of the first air duct cover's end, allowing the first air duct cover to be fixed to the housing with screws. Similarly, a mounting component with screw holes is provided on the inner side of the second air duct cover's end, allowing the second air duct cover to be fixed to the housing with screws. During flight, both the first and second air duct covers need to be securely fixed to the housing to prevent them from falling off due to vibration. Since the air duct is elongated, it is inconvenient to operate with a screwdriver. The above-mentioned technical features provide space for installation and eliminate the need for screw holes on the outer surfaces of the first and second air duct covers, resulting in a more aesthetically pleasing design.

[0035] like Figure 4 As shown, the rotary-wing drone of this embodiment includes a main body of the rotary-wing drone and a drone protective cover as described above; the drone protective cover is mounted on the main body; the power system of the main body is located inside the drone protective cover; the power system's passageway extends from a first through hole into a first air passage; the exhaust pipe of the main body is located in a second air passage, passes through the second through hole, and is mounted on the power system.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Therefore, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention should fall within the protection scope of the present invention.

Claims

1. A protective cover for a drone, comprising a cover body, characterized in that: It also includes a first air duct cover and a second air duct cover respectively installed on both sides of the cover; The first air duct cover and the cover together form the first air duct; The second air duct cover and the cover together form the second air duct; The opening at the front end of the first airway is larger than the opening at the rear end; The opening at the front end of the second airway is larger than the opening at the rear end; The housing covered by the first air duct cover has a first through hole; the housing covered by the second air duct cover has a second through hole. The first airway cover has a third through hole, and the second airway cover has a fourth through hole; The first through hole and the third through hole are located on the same axis; the second through hole and the fourth through hole are located on the same axis; by setting the first air passage, the engine's intake pipe passes through the first through hole on the cover and extends into the first air passage; the engine's exhaust pipe is set in the second air passage, and the air flowing through the second air passage carries away the heat from the exhaust pipe. The inner side of the first airway cover is also provided with multiple protruding fins.

2. The UAV protective cover according to claim 1, characterized in that: The portion of the cover covered by the first airway cover is recessed inward; the portion of the cover covered by the second airway cover is recessed inward.

3. The drone protective cover according to claim 1, characterized in that: The inner surface of the second airway cover is also covered with a sound-absorbing layer.

4. The drone protective cover according to any one of claims 1 to 3, characterized in that: The top of the first airway cover is recessed towards the middle, and the bottom extends outward; The top of the second airway cover is recessed towards the center, and the bottom extends outward.

5. The UAV protective cover according to claim 4, characterized in that: An installation component is provided on the inner side of the end of the first airway cover. The installation component has screw holes, and the first airway cover is fixed to the cover body by screws. An mounting component is provided on the inner side of the end of the second airway cover. The mounting component has screw holes, and the second airway cover is fixed to the cover body by screws.

6. A rotary-wing unmanned aerial vehicle, characterized in that: Includes the main body of the rotary-wing drone and the drone protective cover as described in any one of claims 1 to 5; The drone protective cover is mounted on the main body; the power system of the main body is located inside the drone protective cover; the air intake pipe of the power system extends from the first through hole into the first air passage; the exhaust pipe of the main body is located in the second air passage, passes through the second through hole and is mounted on the power system.

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