Unmanned aerial vehicle with active heat dissipation system and decoration projection function

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle with an active heat dissipation system and a decorative projection function, which comprises a flight controller, four vehicle arms are arranged on the peripheral side of the flight controller, and the interior of each vehicle arm is of a hollow structure; a bottom plate is arranged at the bottom of the flight control, a middle plate is arranged at the upper end of the flight control, a projection assembly is arranged on the middle plate, a cooling fan is installed at the upper end of the bottom plate, cooling fins are arranged at the upper end of the cooling fan, and an image transmission sky end is installed at the upper ends of the cooling fins. An air inlet is formed in the windward side of the front portion of the unmanned aerial vehicle and has the same inclination angle with the flight of the unmanned aerial vehicle, and an air channel is formed in the air inlet and the closed unmanned aerial vehicle. According to the utility model, the machine arms are hollowed out, no wire rod is exposed, the appearance integrity is enhanced, and the air resistance in flight is reduced; due to the design of the fully-surrounded protective side plates, internal electronic equipment can be protected, and meanwhile the appearance is more attractive; the heat dissipation air channel unifies the flow direction of air in the machine body, and the heat dissipation efficiency is enhanced; and a projection function: the patterns can be projected on the ground during hovering or displaying.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, and in particular to a unmanned aerial vehicle with an active heat dissipation system and a decorative projection function. Background Art

[0002] FPV drones (abbreviated as FPV drones) are a type of multi-rotor aircraft. Due to the need for uninterrupted control, FPV drones are classified as model aircraft. They are an extreme aviation sport that has emerged in recent years at home and abroad. FPV drones are different from aerial photography drones. FPV drones have a simple structure and strong power, which allows them to reach a maximum speed of 200km / h. The instantaneous power burst can complete fancy flight actions such as rolling, rapid acceleration and deceleration, rapid ascent and descent, etc. Its powerful maneuverability is called "F1 in the air".

[0003] Compared with aerial photography drones, the operating logic of FPV drones is different and more difficult, and crashes are inevitable during flight practice. Traditional FPV drones have a simple structure, with a frame consisting of only a carbon plate structure fixed with threaded fasteners. The electronic equipment is exposed and the sides are penetrated without any protection, making it easy for foreign objects to invade during a fall or takeoff and landing, causing short circuits with internal electronic components and increasing the risk of equipment damage.

[0004] While solving the above problems, the drone also brings up the problem of heat dissipation. The image transmission system needs to process a large amount of video signals during flight, and also needs to transmit high-power image signals, which will generate a lot of heat in the module. Heat will accumulate in the side-protected body structure, causing the module to overheat and the image signal to be interrupted, which may lead to unexpected situations.

[0005] The existing motor connection cable routing method of the FPV drone is to use cable ties or special wire tubes to fix them on the aircraft arm. The exposed part of the wire is easily damaged in the event of a collision during flight, which can cause danger. At the same time, the appearance is not well integrated, which affects the appearance of the product.

[0006] The appearance of existing FPV drones is beginning to become homogenized. However, users of FPV drones are a group with individual personalities. Most of the exterior decorations are LED lamp beads. The implementation principles of various products are basically the same, and there is a greater possibility for improvement in terms of personalization. Utility Model Content

[0007] In order to solve the above technical problems, the utility model provides a drone with an active heat dissipation system and a decorative projection function, including a flight control, four arms are arranged around the flight control, and the inside of the arms is arranged as a hollow structure;

[0008] A bottom plate is arranged at the rear end of the bottom of the flight control, a middle plate is arranged at the front side of the upper end thereof, a projection assembly which realizes the projection effect by using the convex lens imaging principle is arranged at the front side of the upper end of the middle plate, and a CNC camera side plate is also arranged at the outer side of the projection assembly;

[0009] A cooling fan is installed on the upper end of the bottom plate, a heat sink is arranged on the upper end of the cooling fan, and the image transmission sky unit is installed on the upper end of the heat sink;

[0010] An air inlet is set on the windward side of the front of the drone, facing 30 degrees, the same as the tilt angle of the drone's flight. The air inlet forms a negative pressure with the closed interior of the drone, forming an air duct with the front inlet and the rear outlet in the aerodynamics;

[0011] The flight control, middle plate, and left and right sides of the bottom plate of the drone are equipped with protective structures.

[0012] Preferably: a wire groove is provided inside the machine arm, and a carbon plate is arranged at the upper end of the wire groove, the carbon plate is connected to the machine arm through a cover screw, the wire groove is a long groove with a width of 6.4 mm and a depth of 3 mm, and the carbon plate is 1 mm thick.

[0013] Preferably: a mounting groove is provided at the end of the arm away from the flight control, a motor is installed in the mounting groove, the bottom of the motor is fixedly connected to the arm by a plurality of motor screws, a propeller is installed at the output end of the motor, and a motor foot pad is also sleeved on the outer end of the arm.

[0014] Preferably, the protective structure comprises a plurality of checkered aluminum columns, which are symmetrically arranged on the flight control, the middle plate and the bottom plate, and a plurality of checkered aluminum columns are arranged on the same side, and protective side plates are arranged between adjacent checkered aluminum columns on the same side.

[0015] Preferably: the protective side panels are provided with decorative patterns, and the protective side panels are manufactured using multi-color 3D printing technology, and transparent or light-colored, light-transmitting materials are selected to form the light-transmitting light strip positions.

[0016] Preferably: the projection assembly includes a fixed frame, the fixed frame is mounted on the middle plate, a projection lens group is installed in the fixed frame, a replaceable projection film is provided in the projection lens group, a light source fixture is arranged on the top of the projection lens group, and an LED light source is arranged in the light source fixture.

[0017] Technical effects and advantages of the utility model:

[0018] (1) The arms are hollowed out to hide the motor cables inside the arms. No cables are exposed, which enhances the overall appearance and reduces air resistance during flight.

[0019] (2) The fully enclosed protective side panel design protects the internal electronic equipment and has a more beautiful appearance;

[0020] (3) The heat dissipation duct design throughout the drone unifies the air flow inside the body, allowing better airflow at high speeds and enhancing heat dissipation efficiency;

[0021] (4) A projection function has been added. Patterns can be projected onto the ground when the aircraft is hovering at low altitude or held for display. Customized film allows players to have a more personalized aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of a drone with an active cooling system and a decorative projection function provided in an embodiment of the present application. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the structure of a drone with an active cooling system and a decorative projection function provided in an embodiment of the present application. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the structure of a drone with an active cooling system and a decorative projection function provided in an embodiment of the present application. Figure 3 ;

[0025] Figure 4 This is a schematic diagram of the structure of a drone with an active cooling system and a decorative projection function provided in an embodiment of the present application. Figure 4 .

[0026] In the figure:

[0027] 1. Flight control; 2. Arm; 3. Middle plate; 4. Projection assembly; 5. CNC camera side plate; 6. Reticulated aluminum column; 7. Rear side plate; 8. Front side plate; 9. Bottom plate; 10. Cooling fan; 11. Heat sink; 12. Sky end of image transmission; 21. Wire trough; 22. Carbon plate; 23. Cover screw; 24. Mounting slot; 25. Motor; 26. Motor screw; 27. Motor foot pad; 28. Propeller; 41. Fixed frame; 42. Projection lens group; 43. Projection film; 44. Light source fixture; 45. LED light source.

[0028] Implementation Method

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes. Example

[0030] See also Figure 1 to Figure 4 In this embodiment, a drone with an active heat dissipation system and a decorative projection function is provided, including a flight control 1, four arms 2 are arranged around the flight control 1, and the inside of the arms 2 is set as a hollow structure, so that wires can be arranged therein, which can increase the beauty of the wiring and make the appearance of the drone more beautiful and integrated, and also protect the wires, while also reducing the resistance of flight;

[0031] A wire slot 21 is provided inside the machine arm 2, and a carbon plate 22 is provided at the upper end of the wire slot 21. The carbon plate 22 is connected to the machine arm 2 through a cover screw 23 to fix it. The wire slot 21 is a long slot with a width of 6.4 mm and a depth of 3 mm, and is used to place the cables driving the brushless motor. The wire passes through the wire slot 21, passes through the hole on the middle plate 3, and is connected to the electric speed controller.

[0032] In order to ensure the beautiful appearance and unaffected aerodynamic efficiency, the top of the arm 2 is covered with a thin carbon plate 22 with a thickness of 1 mm, and a mounting groove 24 is set at the end of the arm 2 away from the flight control 1. The motor 25 is installed in the mounting groove 24. The bottom of the motor 25 is fixedly connected to the arm 2 through a plurality of motor screws 26. In addition, a propeller 28 is installed at the output end of the motor 25. When the motor 25 is started, the propeller 28 is driven to rotate, thereby realizing the flight of the drone. In addition, a motor foot pad 27 is also sleeved on the outer end of the arm 2, which can protect the motor 25.

[0033] Moreover, when the carbon plate 22 is fixed to the flight control 1 end, a groove is milled on the contact surface between the middle plate 3 and the machine arm 2 to press the carbon plate 22, and the carbon plate 22 is fastened by the thread in the middle of the flight control 1, so that the whole drone has no exposed wires. Compared with the solution with wire tubes and the method of fixing with tape winding, the design of this structure has no exposed wires after the motor 25 is installed, and at the same time reduces the resistance of flight, which improves the flight performance.

[0034] A bottom plate 9 is provided at the rear end of the bottom of the flight control 1, and a middle plate 3 is provided at the front side of the upper end thereof. A projection assembly 4 is provided at the front side of the upper end of the middle plate 3, and a CNC camera side plate 5 is provided on the outer side of the projection assembly 4 to protect the projection assembly 4 and the image transmission camera. The projection assembly 4 can achieve a projection effect on the ground. A cooling fan 10 is installed at the upper end of the bottom plate 9, and a heat sink 11 is provided at the upper end of the cooling fan 10. An image transmission sky end 12 is installed at the upper end of the heat sink 11, which is used to transmit the video information collected by the camera to the ground end with an extremely low-latency radio signal. The sky end generates a lot of heat under the condition of high-power signal transmission, and a good heat dissipation effect is obtained through the cooling fan 10 and the heat sink 11;

[0035] The internal devices of the FPV drone mainly include a flight controller (flight control 1), an electronic speed regulator (ESC), and an image transmission system (image transmission). The image transmission generates a lot of heat during operation. The heat dissipation performance is poor in a fully enclosed model, and the device is prone to overheating. In addition to using a heat sink 11 and a cooling fan 10 for heat dissipation, an air duct is also designed in the entire structure of the drone to improve its heat dissipation performance.

[0036] The inspiration of the air duct design comes from the design of racing cars and fighter jets. An air inlet is set on the windward side of the front of the drone, facing about 30 degrees, which is close to the most commonly used tilt angle of flight. When the drone flies at high speed at a horizontal altitude, the air inlet is on the windward side so that the airflow can enter the drone during high-speed flight; the image transmission sky end 12 contacts with the aluminum heat sink 11, and a small high-speed cooling fan 10 is selected to blow the hot gas downward, forming a negative pressure inside the nearly closed drone, forming a front-in and rear-out air duct in the aerodynamics, and the cold air enters the closed body from the air inlet at the nose of the drone. After testing, this active cooling system has a significant effect on the sky end of DJI's O3 compared with passive cooling;

[0037] The left and right sides of the UAV flight control 1, the middle plate 3 and the bottom plate 9 are provided with protective structures, which include a plurality of mesh aluminum columns 6, which are symmetrically arranged on the flight control 1, the middle plate 3 and the bottom plate 9, and a plurality of mesh aluminum columns 6 are arranged on the same side, and a protective side plate is arranged between the adjacent mesh aluminum columns 6 on the same side, the rear side is a rear side plate 7, and the front side is a front side plate 8. The protective side plates realize a full surround design of the UAV, which can protect the internal electronic equipment to the greatest extent to avoid damage caused by various external factors, and a series of decorative patterns are made on the protective side plates for aesthetics to enhance the product appearance;

[0038] The protective side panels are manufactured using multi-color 3D printing technology, and transparent or light-colored, light-transmitting materials are used to make the light-transmitting light strips, thereby reflecting the decorative effect of the lights; the protective side panels are interlocked with the mesh aluminum columns 6 to lock them firmly on the frame, preventing the risk of the protective side panels falling off the frame when the drone is flying at high speed and high G value;

[0039] At present, FPV drones on the market use LED lamp beads or light bars for appearance decoration, mainly through the shape of the appearance and the arrangement of lights to decorate the body. The drone in this application has a projection function module on the basis of the light bar decoration on the side, and uses the convex lens imaging principle to achieve the projection effect, so that when the player holds the product in a normal posture during use, the projection pattern can be projected onto the ground for imaging, which is very unique. The projection content can be replaced and supports customization, so that the product has personalized customization options;

[0040] The projection assembly 4 includes a fixed frame 41, which is mounted on the middle plate 3. A projection lens group 42 is mounted in the fixed frame 41, and a projection film 43 is arranged in the projection lens group 42. A light source fixing part 44 is arranged on the top of the projection lens group 42, and an LED light source 45 is arranged in the light source fixing part 44. The pattern on the projection film 43 can be projected downward to the ground through the projection lens group 42 under the irradiation of the LED light source 45. The structure is simple and the installation difficulty is relatively low.

[0041] In the UAV of the utility model:

[0042] (1) Arm 2 adopts a hollow design, so that the motor wires are hidden inside the arm 2, without any wires exposed, which enhances the sense of unity of the appearance and reduces air resistance during flight;

[0043] (2) The fully enclosed protective side panel design protects the internal electronic equipment and has a more beautiful appearance;

[0044] (3) The heat dissipation duct design throughout the drone unifies the air flow inside the body, allowing better airflow at high speeds and enhancing heat dissipation efficiency;

[0045] (4) A projection function has been added. Patterns can be projected onto the ground when the aircraft is hovering at low altitude or held for display. Customized film allows players to have a more personalized aircraft.

[0046] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A drone with an active cooling system and a decorative projection function, characterized in that: The invention comprises a flight control (1), wherein four machine arms (2) are arranged on the periphery of the flight control (1), and the inside of the machine arms (2) is arranged as a hollow structure; A bottom plate (9) is arranged at the rear end of the bottom of the flight control (1), a middle plate (3) is arranged at the front side of the upper end thereof, a projection assembly (4) which realizes a projection effect by using a convex lens imaging principle is arranged at the front side of the upper end of the middle plate (3), and a CNC camera side plate (5) is also arranged outside the projection assembly (4); A cooling fan (10) is installed on the upper end of the bottom plate (9), a heat sink (11) is arranged on the upper end of the cooling fan (10), and an image transmission sky end (12) is installed on the upper end of the heat sink (11); An air inlet is set on the windward side of the front of the drone, facing 30 degrees, the same as the tilt angle of the drone's flight. The air inlet forms a negative pressure with the closed interior of the drone, forming an air duct with the front inlet and the rear outlet in the aerodynamics; The flight control (1), the middle plate (3) and the left and right sides of the bottom plate (9) of the unmanned aerial vehicle are all provided with protective structures.

2. The drone with active cooling system and decorative projection function according to claim 1, characterized in that: A wire groove (21) is provided inside the machine arm (2), and a carbon plate (22) is arranged at the upper end of the wire groove (21). The carbon plate (22) is connected to the machine arm (2) via a cover screw (23). The wire groove (21) is a long groove with a width of 6.4 mm and a depth of 3 mm. The carbon plate (22) is 1 mm thick.

3. The drone with active cooling system and decorative projection function according to claim 2, characterized in that: The end of the machine arm (2) away from the flight control (1) is provided with a mounting groove (24), a motor (25) is installed in the mounting groove (24), the bottom of the motor (25) is fixedly connected to the machine arm (2) through a plurality of motor screws (26), a propeller (28) is installed at the output end of the motor (25), and a motor foot pad (27) is also sleeved on the outer end of the machine arm (2).

4. The drone with active cooling system and decorative projection function according to claim 3, characterized in that: The protective structure comprises a plurality of mesh aluminum columns (6), which are symmetrically arranged on the flight control (1), the middle plate (3) and the bottom plate (9), and a plurality of mesh aluminum columns (6) are arranged on the same side, and a protective side plate is arranged between adjacent mesh aluminum columns (6) on the same side.

5. The drone with active heat dissipation system and decorative projection function according to claim 4, characterized in that: The protective side panels are provided with decorative patterns, and the protective side panels are manufactured using multi-color 3D printing technology, and transparent or light-colored, light-transmitting materials are selected to form the positions of the light-transmitting light strips.

6. The drone with active cooling system and decorative projection function according to claim 1, characterized in that: The projection assembly (4) comprises a fixed frame (41), the fixed frame (41) being mounted on the middle plate (3), a projection lens group (42) being mounted in the fixed frame (41), a replaceable projection film (43) being arranged in the projection lens group (42), a light source fixing part (44) being arranged on the top of the projection lens group (42), and an LED light source (45) being arranged in the light source fixing part (44).

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