Drones

Abstract

The utility model discloses a kind of unmanned aerial vehicle, unmanned aerial vehicle includes shell, battery and fan, shell is provided with first air inlet and first air outlet, shell includes battery compartment;Battery is detachably installed in battery compartment, when battery is installed in battery compartment, battery and battery compartment form battery air duct, battery air duct is communicated with first air inlet or first air outlet;Fan is arranged in shell, fan is used to drive airflow to flow through battery air duct.The present application helps to reduce the risk of excessively high temperature of battery.

Description

Technical Field

[0001] This application relates to the field of aircraft technology, and in particular to an unmanned aerial vehicle (UAV). Background Technology

[0002] Drone batteries provide electrical power, enabling the drone to function properly. However, in related technologies, drone batteries are typically enclosed in a battery compartment, making it difficult for the battery to dissipate heat. Utility Model Content

[0003] This invention provides an unmanned aerial vehicle (UAV) to solve at least one of the above-mentioned problems.

[0004] The present invention achieves the above objectives through the following technical solutions.

[0005] This utility model provides a drone, which includes:

[0006] The housing is provided with a first air inlet and a first air outlet, and the housing includes a battery compartment.

[0007] A battery, detachably mounted in the battery compartment, wherein when the battery is mounted in the battery compartment, a battery air duct is formed between the battery and the battery compartment, and the battery air duct is connected to the first air inlet; and

[0008] A fan is disposed inside the housing and is used to drive airflow through the battery duct.

[0009] In one embodiment, the fan drives airflow from the first air inlet to the battery duct, and then to the first air outlet to form an airflow channel, wherein the battery has at least two different surfaces located in the airflow channel.

[0010] In one embodiment, the drone further includes:

[0011] An electronic control board, wherein the electronic control board is at least partially located in the airflow channel;

[0012] The first air inlet includes a first sub-air inlet and a second sub-air inlet, and the opposite sides of the electronic control board are respectively arranged opposite to the first sub-air inlet and the second sub-air inlet.

[0013] In one embodiment, the fan and the first air inlet are located on opposite sides of the battery compartment. The fan is located near the head and bottom of the housing. The first air inlet is located at the top of the housing and near the tail of the housing. The first air outlet is located at the tail of the housing and near the bottom of the housing.

[0014] In one embodiment, the fan has a second air inlet and a second air outlet; the drone also includes an alloy heat sink and a motherboard, the alloy heat sink being thermally connected to the motherboard, both the alloy heat sink and the motherboard being installed inside the casing, and the alloy heat sink having a third air inlet and a third air outlet;

[0015] The first air inlet is connected to the battery air duct, the battery air duct is connected to the second air inlet, the second air outlet is opposite to and connected to the third air inlet, and the third air outlet is opposite to and connected to the first air outlet.

[0016] In one embodiment, a fifth air inlet is also provided on the side of the housing, which is connected to the battery air duct, and the fan is used to drive airflow from the fifth air inlet to the battery air duct.

[0017] In one embodiment, in the plane formed by at least two of the yaw axis direction, roll axis direction, or pitch axis direction of the UAV, the projections of the first air inlet and the second air inlet do not overlap at least partially; and / or, the projections of the first air outlet and the second air outlet do not overlap at least partially.

[0018] In one embodiment, the housing is provided with a fourth air inlet, which is connected to the first air inlet;

[0019] The drone also includes a camera module disposed at the head of the casing, and the battery is used to power the camera module; the camera module includes a heat dissipation bracket and two imaging modules, the two imaging modules are symmetrically disposed on opposite sides of the heat dissipation bracket, a heat dissipation gap is formed at the connection between the heat dissipation bracket and the casing, and the heat dissipation gap is connected to the fourth air inlet;

[0020] The heat dissipation bracket is positioned opposite to the fourth air inlet.

[0021] In one embodiment, the air volume of the first air inlet is greater than that of the fourth air inlet; or / or, the air volume of the fourth air inlet is greater than that of the first air inlet.

[0022] In one embodiment, the fan includes a fan wheel, a plastic shell, and an alloy shell, the alloy shell surrounding the plastic shell to form a fan wheel receiving space, the fan wheel being located in the fan wheel receiving space and mounted on the alloy shell.

[0023] The drone provided in this embodiment includes a casing, a battery, and a fan. The fan is disposed inside the casing, and the battery is detachably installed in the battery compartment of the casing. The casing is provided with a first air inlet and a first air outlet. When the battery is installed in the battery compartment, the battery and the battery compartment are spaced apart to form a battery air duct. The battery air duct is connected to the first air inlet, and the fan drives airflow through the battery air duct. This facilitates natural heat exchange between the battery and the outside air through the battery air duct. Attached Figure Description

[0024] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the structure of the UAV provided in this embodiment of the present invention is shown.

[0026] Figure 2 It shows Figure 1 A schematic diagram of part of the structure of the Chinese unmanned aerial vehicle.

[0027] Figure 3 It shows Figure 2 A structural diagram of a Chinese drone from another perspective.

[0028] Figure 4 It shows Figure 1 A schematic diagram of the structure of the battery.

[0029] Figure 5 It shows Figure 2 A cross-sectional schematic diagram of a Chinese unmanned aerial vehicle (UAV).

[0030] Figure 6 It shows Figure 2 A cross-sectional view of the UAV at another cutting position.

[0031] Figure 7 It shows Figure 6 A schematic diagram of part of the structure of a Chinese unmanned aerial vehicle (UAV).

[0032] Figure 8 It shows Figure 7 A schematic diagram of the structure of the central fan.

[0033] Figure 9 It shows Figure 8 A schematic diagram of the exploded structure of the fan.

[0034] Figure 10 It shows Figure 6 Thermal simulation diagram of the battery.

[0035] Figure 11 It shows Figure 6 Thermal simulation diagram of the medium-voltage control board.

[0036] Figure 12 It shows Figure 11 Thermal simulation diagram of the ESC board on the other side.

[0037] Figure 13 It shows Figure 6 Thermal simulation diagram of the motherboard.

[0038] Figure 14 It shows Figure 13 Thermal simulation diagram of the motherboard on the other side.

[0039] Explanation of icon numbers:

[0040] Unmanned Aerial Vehicle (UAV) 10, Casing 100, First Air Inlet 101, First Sub-Air Inlet 101a, Second Sub-Air Inlet 101b, First Air Outlet 102, Fourth Air Inlet 103, Fifth Air Inlet 104, Battery Compartment 105, Airflow Channel 106, Battery Air Duct 107, First End 110, Second End 120, Top 130, Bottom 140, Head 150, Tail 160, Fan 200, Second Air Inlet 201, Second Air Outlet 202, Wind Wheel Receiving Space 203, Plastic Shell 210, Alloy Shell 220, Wind Wheel 230, Battery 300, Electronic Control Board 400, Main Board 500, Alloy Heat Sink 600, Third Air Inlet 601, Third Air Outlet 602, Camera Module 700, Roll Axis Direction X, Pitch Axis Direction Y, Yaw Axis Direction Z. Detailed Implementation

[0041] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the utility model without creative effort are within the scope of protection of the utility model.

[0042] The technical solutions of the embodiments of the utility model will now be clearly and completely described with reference to the accompanying drawings.

[0043] Please see Figure 1 This utility model provides a drone 10, which is an unmanned aerial vehicle, an unmanned vehicle, or other mobile non-human-carrying device.

[0044] The drone 10 includes a housing 100 and a battery 300. The housing 100 includes a battery compartment 105. The battery 300 is detachably installed in the battery compartment 105. The battery 300 can be plugged into or snapped into the battery compartment 105 of the housing 100 so that the battery 300 can be detachably installed in the battery compartment 105.

[0045] Please see Figure 3 , Figure 5 and Figure 6 In one embodiment, the housing 100 is provided with a first air inlet 101 and a first air outlet 102. When the battery 300 is installed in the battery compartment 105, the battery 300 and the battery compartment 105 are spaced apart to form a battery air duct 107, which is connected to the first air inlet 101. A fan 200 is provided inside the housing 100 to drive airflow through the battery air duct 107. In some embodiments, the battery casing can also be used to form a separate heat dissipation air duct, which is then connected to the battery compartment. In some embodiments, the battery casing and the inner wall of the battery compartment can be used to form a heat dissipation air duct. For example, the battery 300 and the battery compartment 105 can be spaced apart to form the battery air duct 107. Using the space between the battery 300 and the battery compartment 105 as the battery air duct 107 not only achieves effective heat dissipation but also makes full use of the internal space resources of the drone 10, making the overall structure of the drone 10 more compact and reasonable.

[0046] The UAV 10 of this application has a battery air duct 107 connected to a first air inlet 101, which facilitates natural heat exchange between the battery 300 and the outside air through the battery air duct 107. Furthermore, a fan 200 drives airflow through the battery air duct 107 so that the airflow passes over the surface of the battery 300, forcibly carrying away heat from the battery 300. This allows the battery 300 to dissipate heat quickly, thereby helping to reduce the risk of the battery 300 overheating.

[0047] In some embodiments, the battery compartment 105 has a battery 300 receiving space, a through hole, and an opening. The battery receiving space can be used to receive the battery 300. Both the through hole and the opening are connected to the battery 300 receiving space. The opening is used to allow the battery 300 to be placed into the battery 300 receiving space. The through hole can allow the battery air duct 107 to communicate with the first air inlet 101.

[0048] Please see Figure 4 In some embodiments, the battery 300 may have a generally rectangular outline. The battery 300 is used to power the motherboard, propeller motors, main camera module, and other functional modules of the drone 10.

[0049] In some implementations, fan 200 may be a centrifugal fan or an axial fan.

[0050] In some embodiments, the fan 200 drives airflow from the first air inlet 101 to the first air outlet 102 to form an airflow channel 106, which is connected to the battery duct 107. The battery 300 has at least two distinct surfaces located within the airflow channel 106. For example, the fan 200 drives airflow from the first air inlet 101 to the battery duct 107, and then through the battery duct 107 to the first air outlet 102 to form the airflow channel 106, where the battery 300 has at least two distinct surfaces located within the airflow channel 106.

[0051] Thus, since the airflow channel 106 is connected to the battery air duct 107, and the battery 300 has at least two different surfaces located in the airflow channel 106, multiple surfaces of the battery 300 can directly contact the cooling airflow, thereby cooling the battery 300 in multiple directions, which helps to reduce the risk of local overheating of the battery 300.

[0052] In addition, the fan 200 drives the airflow from the first air inlet 101 to the first air outlet 102, forming an airflow channel 106 that runs through the entire casing 100, so that the airflow can flow smoothly through the battery air duct 107, thereby more effectively removing the heat generated by the battery 300 when it is working, and further enhancing the heat dissipation effect of the drone 10.

[0053] Please see Figure 5 , Figure 6 , Figure 11 and Figure 12 In some embodiments, the UAV 10 also includes an ESC 400, and the UAV 10 also includes multiple rotor modules, each rotor module including rotor motors and blades. The ESC 400 can be used to control the operation of the rotor motors of the UAV 10 so that the rotor motors can better drive the blades to rotate, thereby providing lift to the UAV 10.

[0054] The power control board 400 is at least partially located in the airflow channel 106. Thus, the airflow generated by the fan 200 not only passes through the battery 300 but also through the power control board 400, which helps to dissipate heat from both the battery 300 and the power control board 400, thereby ensuring that both operate within a reasonable temperature range.

[0055] Furthermore, by placing the ESC board 400 in the airflow channel 106, the same airflow channel 106 can be used to dissipate heat from the ESC board 400 without adding additional heat dissipation devices. This not only saves space but also simplifies the design of the UAV 10, making the overall structure of the UAV 10 more compact.

[0056] Please see Figure 2 and Figure 6 In some embodiments, the first air inlet 101 includes a first sub-air inlet 101a and a second sub-air inlet 101b, with the opposite sides of the ESC 400 respectively positioned opposite the first sub-air inlet 101a and the second sub-air inlet 101b. Thus, with the two sides of the ESC 400 respectively positioned opposite the first sub-air inlet 101a and the second sub-air inlet 101b, heat dissipation from the ESC 400 can be achieved from two different directions, helping to more effectively remove the heat generated during operation and improving heat dissipation efficiency.

[0057] In addition, each part of the ESC board 400 can be affected by airflow, thereby avoiding the situation where one side overheats while the other side is not cooled enough, which helps to maintain a balanced temperature distribution of the ESC board 400.

[0058] Moreover, the fan 200 can drive airflow from the first sub-air inlet 101a and the second sub-air inlet 101b to the ESC board 400 simultaneously, so that multiple airflows flow to the ESC board 400 at the same time, thereby helping to optimize the airflow distribution and further improving the heat dissipation efficiency of the UAV 10 on the ESC board 400.

[0059] Please see Figure 2 , Figure 6 and Figure 10 In some embodiments, the fan 200 and the first air inlet 101 are located on opposite sides of the battery compartment 105. The fan 200 is positioned near the head 150 and bottom 140 of the housing 100. The first air inlet 101 is located at the top 130 of the housing 100 and near the tail 160. The first air outlet 102 is located at the tail 160 of the housing 100 and near the bottom 140. This helps to extend the path of airflow driven by the fan 200. For example, the airflow path can be roughly zigzag-shaped, such as V-shaped, allowing the airflow to pass through most of the electronic components inside the drone 10, thereby helping to improve the overall heat dissipation efficiency of the drone 10.

[0060] Please see Figure 1 In some embodiments, the outer contour of the housing 100 may be generally rectangular. The housing 100 may have a top 130, a bottom 140, a head 150, and a tail 160. The top 130 and the bottom 140 are located on opposite sides of the housing 100 along the yaw axis direction Z. When the UAV 10 is in flight, the top 130 is located above the bottom 140. The head 150 and the tail 160 are located on opposite sides of the housing 100 along the roll axis direction X. The head 150 may connect the top 130 and the bottom 140, and the tail 160 may connect the top 130 and the bottom 140.

[0061] In some embodiments, the housing 100 includes a first end 110 and a second end 120 that are far apart from each other, a first air inlet 101 and a first air outlet 102 are disposed at the first end 110, and a fan 200 is disposed at the second end 120.

[0062] In some embodiments, the first end 110 may be the top 130 of the housing 100 and the second end 120 may be the bottom 140 of the housing 100; or, the first end 110 may be the bottom 140 of the housing 100 and the second end 120 may be the top 130 of the housing 100; or, the first end 110 may be the head 150 of the housing 100 and the second end 120 may be the tail 160 of the housing 100; or, the first end 110 may be the tail 160 of the housing 100 and the second end 120 may be the head 150 of the housing 100; or, the first end 110 and the second end 120 may be two sides of the housing 100.

[0063] Thus, the first air inlet 101 and the second air inlet 201 are far apart, and the second air outlet 202 is far apart from the first air outlet 102, which helps the UAV 10 to form a longer airflow path, thereby helping the airflow to cover more electronic components.

[0064] In some embodiments, the first air inlet 101 and the first air outlet 102 are located on a first plane, which is parallel to the plane formed by the pitch axis (Y) and the yaw axis (Z). For example, the first plane can be the end face of the tail 160; or, for example, the first plane can be the end face of the head 150. Thus, with the first air inlet 101 and the first air outlet 102 located on the first plane, the airflow path can be approximately V-shaped, which further helps to extend the airflow path of the UAV 10. In other embodiments, the first air inlet 101 and the first air outlet 102 can also be located on opposite sides of the first plane.

[0065] Please see Figure 5 , Figure 6 and Figure 8 In some embodiments, the fan 200 has a second air inlet 201 and a second air outlet 202. The first air inlet 101 is connected to the battery air duct 107, the battery air duct 107 is connected to the second air inlet 201, and the second air outlet 202 is connected to the first air outlet 102. By connecting the first air inlet 101 to the battery air duct 107, which in turn connects to the second air inlet 201 of the fan 200, and finally the second air outlet 202 of the fan 200 connects to the first air outlet 102, a complete airflow channel 106 is formed, ensuring the continuity and smoothness of airflow inside the housing 100 and avoiding airflow blockage or ineffective circulation.

[0066] Please see Figure 6 , Figure 13 and Figure 14 In some embodiments, the drone 10 also includes an alloy heat sink 600 and a motherboard 500, the motherboard 500 being able to control the operating status of the drone 10. The alloy heat sink 600 is thermally connected to the motherboard 500, thereby allowing heat from the motherboard 500 to be transferred to the alloy heat sink 600.

[0067] The alloy radiator 600 can be an aluminum alloy radiator or a copper alloy radiator, etc. The alloy radiator 600 can include multiple heat sinks, which are arranged sequentially and spaced apart along the pitch axis Y of the UAV 10, thereby helping to increase the contact area between the airflow and the alloy radiator 600.

[0068] Please see Figure 7 Both the alloy heatsink 600 and the motherboard 500 are installed inside the chassis 100. The alloy heatsink 600 has a third air inlet 601 and a third air outlet 602. The third air inlet 601 is opposite to and connected to the second air outlet 202, and the third air outlet 602 is opposite to and connected to the first air outlet 102. The fan 200 can drive airflow from the first air inlet 101 to the second air inlet 201, and from the second air outlet 202 to the third air inlet 601, and finally from the third air inlet 601 to the first air outlet 102, thus exiting the chassis 100. This airflow carries away the heat generated by the motherboard 500 and the heat absorbed by the alloy heatsink 600 from other electronic components.

[0069] Furthermore, the third air inlet 601 is opposite to and connected to the second air outlet 202, allowing the fan 200 to be relatively close to the alloy heat sink 600. This results in a more compact arrangement of the fan 200 and the alloy heat sink 600 within the casing 100, thus making the structure of the drone 10 more compact. Moreover, the third air outlet 602 is opposite to the first air outlet 102, allowing airflow to be quickly exhausted from the first air outlet 102 outside the casing 100.

[0070] Please see Figure 1 and Figure 2In some embodiments, the projections of the first air inlet 101 and the second air inlet 201 do not at least partially overlap in the plane formed by at least two of the yaw axis direction Z, roll axis direction X, or pitch axis direction Y of the UAV 10; and / or, the projections of the first air outlet 102 and the second air outlet 202 do not at least partially overlap. This can create an airflow path that is not parallel to the yaw axis direction Z, roll axis direction X, or pitch axis direction Y, thereby facilitating airflow over a large number of electronic components within the housing 100, or over multiple surfaces of a heat source (e.g., battery 300), thus improving the heat dissipation effect of the UAV 10.

[0071] In this embodiment, the yaw axis direction Z can refer to the axial direction of the yaw axis of the UAV 10; the roll axis direction X can refer to the axial direction of the roll axis of the UAV 10; and the pitch axis direction Y can refer to the axial direction of the pitch axis of the UAV 10.

[0072] In some embodiments, the first air inlet 101 is located at the third end of the housing 100, and the second air inlet 201 faces away from the third end. The third end may be the tail 160, head 150, top 130, bottom 140, or side of the housing 100. For example, the third end can be the top 130 of the housing 100, with the first air inlet 101 located at the top 130 of the housing 100 and the second air inlet 201 facing the bottom 140 of the housing 100; or, for another example, the third end can be the bottom 140 of the housing 100, with the first air inlet 101 located at the bottom 140 of the housing 100 and the second air inlet 201 facing the top 130 of the housing 100; or, for yet another example, the third end can be the head 150 of the housing 100, with the first air inlet 101 located at the head 150 of the housing 100 and the second air inlet 201 facing the tail 160 of the housing 100; or, for yet another example, the third end can be the tail 160 of the housing 100, with the first air inlet 101 located at the tail 160 of the housing 100 and the second air inlet 201 facing the head 150 of the housing 100. Thus, the orientation of the first air inlet 101 is opposite to that of the second air inlet 201, making the distance between the first air inlet 101 and the second air inlet 201 greater. This helps the UAV 10 to form a longer airflow path, thereby helping the airflow to cover more electronic components.

[0073] Please see Figures 1 to 6 In some embodiments, the housing 100 is provided with a fourth air inlet 103. The fan 200 can drive airflow from the fourth air inlet 103 to the second air inlet 201, from the second air inlet 201 to the second air outlet 202, and finally from the second air outlet 202 to the first air outlet 102.

[0074] The fourth air inlet 103 is connected to the first air inlet 101. By providing the fourth air inlet 103 on the housing 100 and connecting it to the first air inlet 101, the airflow into the housing 100 can be increased, which helps to improve the efficiency of the entire heat dissipation system, thereby enabling the electronic components inside the housing 100 to obtain sufficient cooling airflow.

[0075] In this embodiment, compared to the first air inlet 101, the fourth air inlet 103 is closer to the fan 200. Therefore, when the fourth air inlet has a larger air intake, the heat dissipation effect of the motherboard can be improved with the same fan power.

[0076] When cooling of the battery 300 is required, the air intake of the first air inlet 101 is greater than that of the fourth air inlet 103 to improve the battery's cooling effect. When cooling of the motherboard 500 of the drone 10 is required, the air intake of the fourth air inlet 103 is greater than that of the first air inlet 101 to improve the motherboard's cooling effect. In practical applications, the first air inlet 101 may be equipped with a first sealing component, and the fourth air inlet 103 may be equipped with a second sealing component. Both the first and second sealing components can be baffles or valves. The motherboard 500 can control the degree to which the first sealing component blocks the first air inlet 101 and the degree to which the second sealing component blocks the fourth air inlet 103 according to the cooling requirements of the drone 10.

[0077] In this way, by adjusting the air intake according to the heat dissipation requirements of different components, it can be ensured that the airflow mainly flows to the parts that need the most heat dissipation. For example, when the battery 300 is under heavy workload, more airflow will be guided to the first air intake 101, thereby more effectively cooling the battery 300; while when the motherboard 500 generates a lot of heat, the air intake of the fourth air intake 103 is increased to enhance the heat dissipation of the motherboard 500.

[0078] Furthermore, by dynamically adjusting the airflow of the first air inlet 101 and the fourth air inlet 103 according to different heat dissipation requirements, precise heat dissipation can be achieved for different heat sources. When the battery 300 needs heat dissipation, the airflow of the first air inlet 101 is greater than that of the fourth air inlet 103; conversely, priority is given to ensuring the heat dissipation needs of the motherboard 500. This design allows for flexible adjustment of airflow distribution according to actual conditions, improving the efficiency of the heat dissipation system.

[0079] In some embodiments, the drone 10 also includes a camera module 700 disposed on the head 150 of the housing 100, and a battery 300 for powering the camera module 700; the camera module 700 includes a heat dissipation bracket and two imaging modules, the two imaging modules being symmetrically disposed on opposite sides of the heat dissipation bracket, a heat dissipation gap being formed at the connection between the heat dissipation bracket and the housing 100, the heat dissipation gap being connected to a fourth air inlet 103, and the heat dissipation bracket being disposed opposite to the fourth air inlet.

[0080] In this way, the fan 200 can drive airflow from the ventilation gap into the fourth air inlet 103, so that the airflow flowing to the fourth air inlet 103 can dissipate heat from the heat sink bracket. The imaging module can transfer heat to the heat sink bracket, thereby enabling the imaging module to dissipate heat in a timely manner during operation, which helps to reduce the risk of the camera module 700 being affected by overheating.

[0081] In some embodiments, the housing 100 is further provided with a fifth air inlet 104, wherein the fan 200 can drive airflow from the fifth air inlet 104 to the second air inlet 201, then from the second air inlet 201 to the second air outlet 202, and finally from the second air outlet 202 to the first air outlet 102. In this way, the fan 200 can drive airflow past the electronic components near the sides of the housing 100, helping to optimize the airflow distribution inside the housing 100 and allowing the electronic components near the sides of the housing 100 to receive better cooling.

[0082] The fifth air inlet 104 is located on the side of the housing 100. Along the pitch axis Y, the projection of the fifth air inlet 104 and the projection of the propeller disk of the UAV 10 at least partially overlap, so as to guide the airflow generated during the rotation of the UAV 10's propeller into the housing 100 from the fifth air inlet 104.

[0083] In some embodiments, the projection of the fifth air inlet 104 along the pitch axis Y at least partially overlaps with the projection of the propeller disk of the UAV 10, so as to guide the airflow generated during the rotation of the UAV 10's propeller from the first air inlet 101 into the housing 100. When the UAV 10 is in flight, the propeller rotates at high speed, and the air near the propeller edge is strongly accelerated, forming a high-speed airflow region. The propeller can naturally guide a portion of the airflow towards the fifth air inlet 104, helping the fan 200 drive the airflow into the housing 100, thereby assisting the fan 200 in its operation and enhancing the overall heat dissipation effect of the UAV 10.

[0084] Furthermore, propeller-driven natural ventilation can alleviate the burden on fan 200 to some extent, helping to reduce the power consumption of fan 200, thereby saving electricity and extending the flight time of drone 10. When the natural ventilation generated by fan 200 and propeller works together, a stronger and more uniform airflow can be formed, which helps to remove heat from the electronic components inside the casing 100 more quickly.

[0085] In some implementations, the air volume of the first air inlet 101 accounts for more than 60% of the air volume of all air inlets (first air inlet 101, fourth air inlet 103 and fifth air inlet 104), thereby making the heat dissipation efficiency of the airflow path formed by the first air inlet 101 and the second air inlet 201 higher.

[0086] Please see Figure 8 and Figure 9 In some embodiments, the fan 200 may be a centrifugal fan 200. The fan 200 includes a rotor 230, a plastic housing 210, and an alloy housing 220. The alloy housing 220 surrounds the plastic housing 210 to form a rotor housing space 203. The rotor 230 is located in the rotor housing space 203 and mounted on the alloy housing 220. The plastic housing 210 may be made of plastic, such as polyvinyl chloride, polypropylene, or polycarbonate, thereby helping to reduce the weight of the fan 200. The alloy housing 220 may be made of an alloy, such as a copper alloy or aluminum alloy, etc. The alloy housing 220 has good strength, thus facilitating the support of the rotor 230.

[0087] In some embodiments, the second air outlet 202 may be located at the connection between the plastic shell 210 and the alloy shell 220, and the second air inlet 201 may be located on the alloy shell 220, thereby helping to reduce the mass of the alloy shell 220 and thus helping to reduce the weight of the fan 200.

[0088] In this utility model, unless otherwise explicitly specified or limited, the terms "installation," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can be a mechanical connection; they can be a direct connection or an indirect connection via an intermediate medium; they can be a connection within two components; they can be merely surface contact; or a surface contact connection via an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0089] Furthermore, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as referring to specific or particular structures. The description of "some embodiments" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In the utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate different embodiments or examples described in the utility model, as well as the features of different embodiments or examples.

[0090] The above embodiments are only used to illustrate the technical solutions of the utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the utility model, and should all be included within the protection scope of the utility model.

Claims

1. A drone, characterized in that, include: The housing is provided with a first air inlet and a first air outlet, and the housing includes a battery compartment. A battery, detachably mounted in the battery compartment, wherein when the battery is mounted in the battery compartment, a battery air duct is formed between the battery and the battery compartment, and the battery air duct is connected to the first air inlet; and A fan is disposed inside the housing. The fan drives airflow from the first air inlet to the battery air duct, and then to the first air outlet to form an airflow channel. The battery has at least two different surfaces located in the airflow channel.

2. The drone as described in claim 1, characterized in that, The drone also includes: An electronic control board, wherein the electronic control board is at least partially located in the airflow channel; The first air inlet includes a first sub-air inlet and a second sub-air inlet, and the opposite sides of the electronic control board are respectively arranged opposite to the first sub-air inlet and the second sub-air inlet.

3. The drone as described in claim 2, characterized in that, The fan and the first air inlet are located on opposite sides of the battery compartment. The fan is located near the head and bottom of the housing. The first air inlet is located at the top of the housing and near the tail of the housing. The first air outlet is located at the tail of the housing and near the bottom of the housing.

4. The drone as described in claim 1, characterized in that, The fan has a second air inlet and a second air outlet; the drone also includes an alloy heat sink and a motherboard, the alloy heat sink is thermally connected to the motherboard, the alloy heat sink and the motherboard are both installed inside the casing, and the alloy heat sink has a third air inlet and a third air outlet. The first air inlet is connected to the battery air duct, the battery air duct is connected to the second air inlet, the second air outlet is opposite to and connected to the third air inlet, and the third air outlet is opposite to and connected to the first air outlet.

5. The drone as described in claim 4, characterized in that, The side of the casing is also provided with a fifth air inlet, which is connected to the battery air duct. The fan is used to drive airflow from the fifth air inlet to the battery air duct.

6. The drone as described in claim 5, characterized in that, In the plane formed by at least two of the yaw axis, roll axis, or pitch axis of the UAV, the projections of the first air inlet and the second air inlet do not overlap at least partially; and / or, the projections of the first air outlet and the second air outlet do not overlap at least partially.

7. The UAV as described in claim 1, characterized in that, The casing is provided with a fourth air inlet, which is connected to the first air inlet; The drone also includes a camera module disposed at the head of the casing, and the battery is used to power the camera module; the camera module includes a heat dissipation bracket and two imaging modules, the two imaging modules are symmetrically disposed on opposite sides of the heat dissipation bracket, a heat dissipation gap is formed at the connection between the heat dissipation bracket and the casing, and the heat dissipation gap is connected to the fourth air inlet; The heat dissipation bracket is positioned opposite to the fourth air inlet.

8. The drone as described in claim 7, characterized in that, The air volume of the first air inlet is greater than that of the fourth air inlet; or / or, the air volume of the fourth air inlet is greater than that of the first air inlet.

9. The UAV as described in claim 1, characterized in that, The fan includes a fan wheel, a plastic shell, and an alloy shell. The alloy shell surrounds the plastic shell to form a fan wheel housing space. The fan wheel is located in the fan wheel housing space and is mounted on the alloy shell.

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