CN116156829A - Unmanned aerial vehicle - Google Patents

Abstract

The utility model discloses an unmanned aerial vehicle, this unmanned aerial vehicle include cabin, main control circuit board and first radiator fan at least, inside this unmanned aerial vehicle cabin, can separate for top storehouse and end storehouse based on the casing in main control circuit board and this cabin, is provided with end storehouse income wind gap and top storehouse income wind gap in end storehouse bottom surface one end of this unmanned aerial vehicle, and the other end is provided with first air outlet. The bottom bin air inlet and the first air outlet form a bottom bin heat dissipation air channel penetrating through the bottom bin, and the top bin air inlet and the first air outlet form a top bin heat dissipation air channel penetrating through the top bin. When radiating, the main control circuit board can control the first cooling fan at the first air outlet, guide external air to radiate the bottom bin through the bottom bin radiating air duct, and guide external air to radiate the top bin through the top bin radiating air duct. In this specification, through end storehouse heat dissipation wind channel and top storehouse heat dissipation wind channel to end storehouse and top storehouse respectively dispel the heat for the inside circulation of air of machine storehouse has improved radiating efficiency.

Description

Unmanned aerial vehicle

Technical Field

The application relates to the technical field of unmanned aerial vehicle, in particular to an unmanned aerial vehicle.

Background

Unmanned aerial vehicle has integrated the high-tech product of multiple high performance electronic components, but high performance also means high power that generates heat, and the tiny electronic components of volume in unmanned aerial vehicle has stricter requirement to the heat dissipation mode.

In order to lighten the weight of the unmanned aerial vehicle, the unmanned aerial vehicle head part generally adopts composite materials and polymers as main materials of a head shell and an internal structure, and the heat conductivity of the materials is very low, so that the heat conduction and the heat dissipation of components in an electronic bin are not facilitated, and therefore, how to set a heat dissipation mode in the electronic bin of the unmanned aerial vehicle, and the heat dissipation efficiency is improved, and the problem to be solved is urgent.

At present, in the related art, a vent can be respectively arranged at the front side and the rear side of the unmanned aerial vehicle along the flight direction, so that two vents which are oppositely arranged are communicated with the inner space of the shell to form a heat dissipation air duct. When the unmanned aerial vehicle flies, air flow can enter from the front side ventilation opening and flow along the axial direction of the unmanned aerial vehicle shell, and the generated hot air flow is discharged from the rear side ventilation opening.

But only through the air current flow in the unmanned aerial vehicle flight process mode of dispelling the heat, radiating efficiency is lower to the vent sets up both sides around unmanned aerial vehicle, also brings higher challenge for waterproof dustproof.

Disclosure of Invention

The embodiment of the specification provides an unmanned aerial vehicle, and this unmanned aerial vehicle can accelerate the inside circulation of air in cabin, and the inside electronic components's of lifting machine storehouse radiating efficiency.

The embodiment of the specification adopts the following technical scheme:

the unmanned aerial vehicle that this specification provided, unmanned aerial vehicle includes cabin, main control circuit board and first radiator fan at least; wherein:

the main control circuit board and the shell of the machine cabin divide the interior of the machine cabin into a top cabin and a bottom cabin; a bottom bin air inlet and a top bin air inlet are formed in one end of the bottom surface of the bottom bin, a first air outlet is formed in the other end of the bottom bin, a bottom bin heat dissipation air channel penetrating through the bottom bin is formed through the bottom bin air inlet and the first air outlet, and a top bin heat dissipation air channel penetrating through the top bin is formed through the top bin air inlet and the first air outlet;

the main control circuit board is used for controlling the first cooling fan;

the first cooling fan is located at the first air outlet and is used for guiding external air to cool the bottom bin through the bottom bin cooling air channel and guiding external air to cool the top bin through the top bin cooling air channel according to control of the main control circuit board.

Optionally, the first cooling fan is an axial flow fan, and the hot air in the cabin is vertically discharged from the first air outlet through the axial flow fan.

Optionally, a partition board extending towards the machine cabin is arranged on the bottom surface of the bottom cabin, and the main control circuit board and the partition board divide the interior of the machine cabin into a top cabin and a bottom cabin.

Optionally, the bottom bin air inlet and the top bin air inlet are respectively arranged at two sides of the partition plate.

Optionally, the first cooling fan rotates the fan to discharge hot air in the unmanned aerial vehicle cabin according to the control of the main control circuit board, and negative pressure is formed in the unmanned aerial vehicle cabin;

based on the negative pressure in the unmanned aerial vehicle cabin, external air is pressed into the bottom cabin from the bottom cabin air inlet, is discharged from the first air outlet through the bottom cabin heat dissipation air duct, and is pressed into the top cabin from the top cabin air inlet, and is discharged from the first air outlet through the top cabin heat dissipation air duct.

Optionally, the main control circuit board lower surface is laminated with the radiating component, electronic components on the main control circuit board pass through the radiating component conduction heat dissipation.

Optionally, the heat dissipation assembly includes a heat dissipation shell and a heat dissipation pipe.

Optionally, a second air inlet and a second air outlet are further formed in the bottom surface of the bottom bin of the unmanned aerial vehicle, and a main control heat dissipation air channel is formed through the second air inlet, the heat dissipation pipeline and the second air outlet.

Optionally, a second cooling fan is arranged at a second air inlet of the unmanned aerial vehicle, and the main control circuit board is further used for controlling the second cooling fan;

the second cooling fan is used for guiding external air to cool the cooling pipeline through the main control cooling air channel according to the control of the main control circuit board.

Optionally, the second heat dissipation fan is a centrifugal fan.

Optionally, the heat dissipation shell is bowl type structure, the upper edge of heat dissipation shell with the laminating of main control circuit board, the bowl body lower surface of heat dissipation shell with the laminating of heat dissipation pipeline, the bowl body upper surface of heat dissipation shell with the laminating of electronic components on the main control circuit board.

Optionally, the heat dissipation pipeline comprises a horizontal pipeline and an arc pipeline, and a second heat dissipation fan is arranged at a second air inlet of the unmanned aerial vehicle;

one end of the horizontal pipeline is communicated with the air outlet of the second cooling fan, the other end of the horizontal pipeline is communicated with the arc-shaped pipeline, and the outlet of the arc-shaped pipeline faces the second air outlet.

Optionally, the axial flow fan is configured with a fan protection cover;

the fan protection cover is filled with vibration damping materials and fixedly connected with the bottom surface of the bottom bin through fasteners.

The above-mentioned at least one technical scheme that this description embodiment adopted can reach following beneficial effect:

the unmanned aerial vehicle of this specification, this unmanned aerial vehicle includes cabin, main control circuit board and first radiator fan at least, inside this unmanned aerial vehicle cabin, can separate for top storehouse and end storehouse based on the casing in main control circuit board and this cabin, is provided with end storehouse income wind gap and top storehouse income wind gap at end storehouse bottom surface one end of this unmanned aerial vehicle, and the other end is provided with first air outlet. The bottom bin air inlet and the first air outlet form a bottom bin heat dissipation air channel penetrating through the bottom bin, and the top bin air inlet and the first air outlet form a top bin heat dissipation air channel penetrating through the top bin. When radiating, the main control circuit board can control the first cooling fan at the first air outlet, guide external air to radiate the bottom bin through the bottom bin radiating air duct, and guide external air to radiate the top bin through the top bin radiating air duct. In this specification, through end storehouse heat dissipation wind channel and top storehouse heat dissipation wind channel to end storehouse and top storehouse respectively dispel the heat for the inside circulation of air of machine storehouse has improved radiating efficiency.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

fig. 1 is a schematic structural diagram of a unmanned aerial vehicle according to an embodiment of the present disclosure;

fig. 2 is a left side cross-sectional view of a unmanned aerial vehicle according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a bottom surface of a bottom cabin of an unmanned aerial vehicle according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram of a bottom bin heat dissipation air duct and a top bin heat dissipation air duct provided in an embodiment of the present disclosure;

fig. 5 is a right side cross-sectional view of the unmanned aerial vehicle provided in the embodiments of the present disclosure;

fig. 6 is an enlarged schematic diagram of a main control heat dissipation air duct according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a bottom surface of a bottom cabin of an unmanned aerial vehicle according to an embodiment of the present disclosure;

fig. 8 is a schematic diagram of a main control heat dissipation air duct according to an embodiment of the present disclosure;

fig. 9 is a schematic view of a bottom bin structure provided in an embodiment of the present disclosure;

fig. 10 is a schematic diagram of a top bin structure according to an embodiment of the present disclosure.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the present specification more apparent, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present specification and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the disclosure, are intended to be within the scope of the present application based on the embodiments described herein.

Fig. 1 is a schematic structural diagram of an unmanned aerial vehicle according to an embodiment of the present disclosure, where the unmanned aerial vehicle includes a cabin surrounded by a housing 10, and a main control circuit board 300 and a first heat dissipation fan 200 for dissipating heat are included in the cabin. Wherein, this unmanned aerial vehicle's casing contains the back shroud of epitheca 100, inferior valve 102 and afterbody, and inferior valve 102 comprises the arc casing 1020 that is located unmanned aerial vehicle aircraft nose side and the bottom shroud 1022 that is located unmanned aerial vehicle aircraft tail side, includes central processing unit (Central Processing Unit, CPU) on this main control circuit board 300 to and a large amount of core calculate the chip module that electronic components constitutes, still contain a series of electronic components that are used for realizing unmanned aerial vehicle execution flight mission in this unmanned aerial vehicle storehouse, for example, navigation equipment (inertial measurement unit subassembly, vision sensor, radar) and communication equipment etc..

In order to reasonably arrange the positions of the electronic components in the cabin, a bearing structure is further arranged in the cabin. If, transversely be provided with steel frame construction at this unmanned aerial vehicle storehouse axis position for each electronic components in the bearing roof storehouse. This main control circuit board 300 sets up in the position of the axle wire of machine storehouse off-centering, is the level and places, based on this main control circuit board 300 and this unmanned aerial vehicle's casing, can separate this unmanned aerial vehicle machine storehouse into top storehouse and end storehouse, and be in the top storehouse of main control circuit board 300 in this unmanned aerial vehicle machine storehouse promptly, be in the end storehouse of this main control circuit board 300 below, electronic components distributes in top storehouse and end storehouse.

In an embodiment of the present disclosure, a left side cross-sectional view of a cabin of an unmanned aerial vehicle is shown in fig. 2, and a position distribution of each electronic component in the cabin is shown in the drawing, so that a plurality of electronic components are dispersed in a top cabin and a bottom cabin of the cabin.

For the convenience of heat dissipation and for the consideration of water and dust prevention, a bottom bin air inlet 400, a top bin air inlet 402 and a first air outlet 500 are arranged on the bottom surface of the bottom bin of the unmanned aerial vehicle, the bottom bin air inlet 400 and the top bin air inlet 402 are arranged at one end of the bottom surface, and the first air outlet 500 is arranged at the other end of the bottom surface, as shown in fig. 3. Outside air can enter the cabin through the bottom cabin air inlet 400 and the top cabin air inlet 402, and hot air in the cabin can be discharged through the first air outlet 500, so that the unmanned aerial vehicle cabin is well ventilated, and electronic components in the cabin can be effectively radiated.

In fig. 3, the bottom compartment floor includes a bottom surface of the arcuate housing 1020 and a bottom cover plate 1022, and the bottom surface of the arcuate housing 1020 mates with the bottom cover plate 1022. The bottom bin inlets 400 are distributed on the bottom cover plate 1022 and the top bin inlets 402 are distributed on the bottom surface of the arcuate housing 1020. The bottom bin air inlet 400 comprises two rectangular inlets, which are arranged on the bottom cover plate 1022 and adjacent to the bottom surface of the arc-shaped shell 1020, the top bin air inlet 402 can be divided into a top bin left air inlet 4020 and a top bin right air inlet 4022, which are respectively arranged on the left side and the right side of the bottom surface of the arc-shaped shell 1020, the top bin left air inlet 4020 also comprises two rectangular inlets, the two inlets are distributed on the left side of the bottom surface of the arc-shaped shell 1020 at a certain distance, the top bin right air inlet 4022 also comprises two rectangular inlets, and the two inlets are distributed on the right side of the bottom surface of the arc-shaped shell 1020 at a certain distance. The left air inlet of the top bin and the right air inlet of the top bin are symmetrically distributed by the central line of the bottom surface of the bottom bin of the unmanned aerial vehicle. The first air outlets 500 are disposed on the bottom cover 1022 and near the tail portion, and are distributed in honeycomb holes.

In the present specification, the bottom bin air inlet 400 and the first air outlet 500 form a bottom bin air-cooling duct penetrating the bottom bin, and the top bin air inlet 402 and the first air outlet 500 form an air-cooling duct penetrating the top bin.

In order to improve the heat dissipation efficiency, a first heat dissipation fan 200 is disposed at the first air outlet 500, and when the first heat dissipation fan 200 is turned on, external air can be guided to dissipate heat of each electronic component in the bottom bin through the bottom bin heat dissipation air channel, and external air can be guided to dissipate heat of each electronic component in the top bin through the top bin heat dissipation air channel.

In order to avoid the problem that external air circulates only through the bottom cabin heat dissipation air duct due to the short path of the bottom cabin heat dissipation air duct, and the top cabin heat dissipation effect is poor, a partition 1024 extending towards a cabin is further arranged on the bottom surface of the bottom cabin in the specification, the partition 1024 is connected with the main control circuit board 300 and the bottom cabin bottom surface, and the cabin can be divided into the top cabin and the bottom cabin based on the main control circuit board 300 and the partition 1024. In addition, from the bottom surface of the bottom bin, the bottom bin air inlet 400 and the top bin air inlet 402 are respectively arranged at two sides of the partition board, the top bin air inlet 402 is distributed at the left side of the partition board, and the bottom bin air inlet 400 is distributed at the right side of the partition board.

As shown in fig. 4, fig. 4 is a schematic diagram of a bottom cabin heat dissipation air duct and a top cabin heat dissipation air duct provided in the embodiment of the present disclosure, and the machine cabin is divided into a top cabin and a bottom cabin based on the main control circuit board 300 and a partition 1024 on the front side. When the outside air enters from the bottom bin air inlet 400, the air flows to the right side of the bottom bin due to the shielding of the left side partition 1024, and is discharged through the first air outlet 500, so that the bottom bin air inlet 400 and the first air outlet 500 form a bottom bin heat dissipation air channel (1) penetrating through the bottom bin, and each electronic component in the bottom bin can be dissipated through the air flow in the bottom bin heat dissipation air channel (1).

When the outside air enters from the top bin air inlet 402, the outside air is blocked by the right partition 1024, and flows upwards into the top bin and passes through the top bin to be discharged through the first air outlet 500, so that the top bin air inlet 402 and the first air outlet 500 can form a top bin heat dissipation air channel (2) penetrating through the top bin, and the electronic components in the top bin can be dissipated through the air flow in the top bin heat dissipation air channel (2).

In order to accelerate air circulation and improve heat dissipation efficiency, a first cooling fan 200 is further disposed at the first air outlet 500 of the unmanned aerial vehicle cabin, and is controlled by the main control circuit board 300, and the first cooling fan 200 can guide external air to enter the bottom cabin through the bottom cabin air inlet 400 and guide air in the bottom cabin to be discharged through the first air outlet 500 based on the control of the main control circuit board 300. Specifically, after the main control circuit board 300 controls the first cooling fan 200 to start, the fan rotates to discharge the hot air in the cabin of the unmanned aerial vehicle, so that the pressure in the cabin of the unmanned aerial vehicle is lower than the normal pressure, that is, negative pressure is generated, and then the external air is pressed into the cabin from the cabin air inlet 400, flows in the cabin and is discharged from the first air outlet 500.

The first cooling fan 200 may also guide external air into the top cabin through the top cabin air inlet 402 and guide air inside the top cabin to be discharged through the first air outlet 500 based on the control of the main control circuit board 300. Specifically, after the main control circuit board 300 controls the first cooling fan 200 to start, the fan rotates to discharge the hot air in the cabin of the unmanned aerial vehicle, so that the pressure in the cabin of the unmanned aerial vehicle is lower than the normal pressure, that is, negative pressure is generated, and external air is further pressed into the cabin from the cabin air inlet 402, flows in the cabin and is discharged from the first air outlet 500.

Further, in one embodiment of the present disclosure, since it is required to control the hot air in the cabin of the unmanned aerial vehicle to be discharged from the first air outlet 500 at the bottom via the first cooling fan 200, the first cooling fan 200 may be configured as an axial flow fan having a rotation axis direction perpendicular to the horizontal plane, so that the hot air in the cabin may enter from one side of the axial flow fan and be vertically guided to the first air outlet 500 from the other side.

In this specification, each electronic component located in the bottom bin can radiate heat through the air flow of the bottom bin radiating air channel, and each electronic component located in the top bin can radiate heat through the air flow of the top bin radiating air channel, but because the main control circuit board 300 comprises a CPU and a large number of core computing electronic components, the heating power is higher, and the air flow in the bottom bin radiating air channel alone is difficult to achieve the effect of rapid cooling, so in order to radiate heat to the main control circuit board 300 and the computing core board further, the main control radiating air channel is also separately arranged in this specification for conducting heat radiation to the main control circuit board 300.

Specifically, as shown in fig. 5, fig. 5 is a right side cross-sectional view of the unmanned aerial vehicle cabin provided in the present disclosure, a heat dissipation assembly 204 is further configured below the main control circuit board 300, and the heat dissipation assembly 204 is tightly attached to the lower surface of the main control circuit board 300, so that electronic components on the main control circuit board 300 can conduct and dissipate heat downwards through the heat dissipation assembly 204. The heat dissipation assembly 204 includes a heat dissipation housing 2040 and a heat dissipation pipe 2042, the heat dissipation housing 2040 above the heat dissipation assembly 204 is attached to the lower surface of the main control circuit board 300, the heat dissipation pipe 2042 is disposed below the heat dissipation housing 2040 and is tightly attached to the heat dissipation housing 2040, and the heat dissipation housing 2040 can conduct the heat conducted by the main control circuit board 300 to the heat dissipation pipe 2042 for ventilation through the heat dissipation pipe 2042.

It should be noted that, when the lower surface of the main control circuit board 300 is directly attached to the heat dissipation housing 2040, the partition 1024 extending from the bottom surface of the bottom compartment may be connected to the heat dissipation housing 2040, so as to block the air entering from the top compartment air inlet 402 from flowing to the bottom compartment through the partition 1024 and the heat dissipation housing 2040 in the vertical direction.

Fig. 6 is an enlarged schematic diagram of the structure of the main control heat dissipation air duct, in which the heat dissipation housing 2040 is in a semi-closed bowl-shaped structure, and the heat dissipation housing 2040 is attached to the lower surface of the main control circuit board 300 through the upper edge, and covers several electronic components below the main control circuit board 300. The upper surface of the bowl of the heat dissipation housing 2040 is attached to the electronic components below the main control circuit board 300, the lower surface of the bowl of the heat dissipation housing 2040 is attached to the heat dissipation pipe 2042, and the main control circuit board 300 can conduct heat downwards to the heat dissipation pipe 2042 through the heat dissipation housing 2040. The heat dissipation shell 2040 and the heat dissipation pipe 2042 can be tightly attached by welding, adding heat conduction silicone grease or fastening by screws, etc. to reduce the thermal resistance from the heat dissipation shell 2040 to the heat dissipation pipe 2042.

Further, the heat dissipation housing 2040 may be made of an aluminum alloy material, the upper edge of the heat dissipation housing 2040 may be bonded to the exposed copper portion of the main control circuit board 300, and the sealing structure formed by bonding the two may achieve electromagnetic shielding effect, so as to avoid interference of other electronic components to the CPU and the core electronic components on the main control circuit board 300. In addition, in order to make the heat dissipation shell 2040 and the main control circuit board 300 closely attached, conductive adhesive can be further sealed at the edge attaching position of the heat dissipation shell 2040 and the main control circuit board, so that the heat dissipation shell 2040 and the main control circuit board are tightly attached.

In order to make the heat dissipation pipeline 2042 remove heat and cool in time, the bottom surface of the bottom cabin of the unmanned aerial vehicle is further provided with a second air inlet 404 and a second air outlet 502, as shown in fig. 7, fig. 7 is a schematic structural diagram of the bottom surface of the bottom cabin provided in the present disclosure, the second air inlet 404 and the second air outlet 502 are distributed in honeycomb holes, the second air inlet 404 may be disposed at an inlet of the heat dissipation pipeline 2042, the second air outlet 502 is disposed at an outlet of the heat dissipation pipeline 2042, and a main control heat dissipation air duct is formed by the second air inlet 404, the heat dissipation pipeline 2042 and the second air outlet 502 for conducting heat dissipation to the main control circuit board 300.

In one embodiment of the present disclosure, when the second air inlet 404 may be the bottom compartment air inlet 400 and the second air outlet 502 may be the first air outlet 500, when the first cooling fan 200 rotates, external air is pressed into the bottom compartment from the second air inlet based on the generated negative pressure, and is discharged from the second air outlet 502 through the heat dissipation duct 2042.

In another embodiment of the present disclosure, in order to improve the heat dissipation efficiency of the main control heat dissipation air duct, a second heat dissipation fan 202 may be disposed at the second air inlet 404, and the second heat dissipation fan 202 is also controlled by the main control circuit board 300. As shown in fig. 6, the air outlet of the second cooling fan 202 is communicated with the inlet of the cooling duct 2042, and the second cooling fan 202 can guide the external air to enter from the second air inlet 404 and to be discharged from the second air outlet 502 through the cooling duct 2042 according to the control of the main control circuit board 300, and the external cold air flows through the cooling duct 2042 to cool the cooling duct 2042.

The second cooling fan 202 may be configured as a centrifugal fan, the rotation axis direction of the centrifugal fan is perpendicular to the horizontal plane, the air outlet direction of the centrifugal fan is parallel to the direction of the cooling duct 2042, the air outlet of the centrifugal fan is communicated with one side of the cooling duct 2042, and the external air may enter the centrifugal fan from the second air inlet 404, enter the cooling duct 2042 through the air outlet of the centrifugal fan, and be guided to the second air outlet 502 through the cooling duct 2042.

In this specification, the heat dissipation duct 2042 may be designed in various forms, and preferably, the heat dissipation duct 2042 may be designed to include a horizontal duct having one end connected to the air outlet of the second heat dissipation fan 202 and the other end connected to the arc duct, and the other end of the arc duct facing the second air outlet 502 in fig. 6.

Fig. 8 is a schematic diagram of a main control heat dissipation air duct provided in the present disclosure, a bowl-shaped structure closely attached below a main control circuit board 300 in fig. 8 is a heat dissipation housing 2040, a left side diagram below the heat dissipation housing 2040 shows a second heat dissipation fan 202, and a right side is a heat dissipation pipe 2042. When the second cooling fan 202 is turned on, the external air can enter the second cooling fan 202 from the second air inlet 404 and be discharged from the second air outlet 502 through the cooling duct 2042 to cool the cooling duct 2042. Therefore, the second air inlet 404, the second cooling fan 202, the cooling duct 2042 and the second air outlet 502 form a main cooling air duct (3), and the cooling duct 2042 can be cooled by air flowing in the main cooling air duct (3).

Further, the heat dissipation tube 2042 is composed of a plurality of heat dissipation fins, and the cross section of the horizontal tube can be rectangular, so that the contact area between the heat dissipation shell 2040 and the heat dissipation tube 2042 is increased, and the heat conduction efficiency is improved.

In this specification, in order to improve waterproof dustproof effect, still can set up the dust screen in this unmanned aerial vehicle and outside air carry out the air current business turn over wind gap department of exchange to reduce the entering of dust. That is, the dust screen is encapsulated at the bottom bin air inlet 400, the top bin air inlet 402, the first air outlet 500, the second air inlet 404 and the second air outlet 502 of the bottom of the unmanned aerial vehicle, and the area of the dust screen is larger than that of the air inlet and outlet.

In addition, when the first cooling fan 200 is an axial fan, since the axial fan is severely swayed when rotating, the fan protection cover 2002 with protection function can be embedded outside the axial fan and fixedly connected with the cover plate 1022 at the bottom of the machine cabin through the fastening piece, so as to avoid collision between the axial fan and the electronic components in the machine cabin. And the fan protection cover is filled with vibration damping material 2004, such as foam, so as to weaken the influence of fan shake on the positioning accuracy of the inertial measurement unit in the unmanned aerial vehicle and on the flight of the unmanned aerial vehicle. The fan shroud 2002 may be made of plastic.

As shown in fig. 9, fig. 9 is a schematic structural distribution diagram of a bottom bin, that is, a structural distribution of devices under the main control circuit board 300, where the bottom bin includes a semi-enclosed structure formed by an upper cover plate 1026, a side cover plate 1028, a bottom cover plate 1022, and a front partition 1024. Wherein, upper cover 1026 is the steelframe mechanism of unmanned aerial vehicle storehouse axis for the electronic components on bearing upper strata contains electronic components 1, electronic components 2 and main control circuit board 300 in this end storehouse, and it is closely laminated with heat dissipation shell 2040 to have deployed the core electronic components that is used for calculating on this main control circuit board, and the electronic components that generates heat on this main control circuit board accessible heat dissipation shell 2040 conduction heat to this axial fan 200 has arranged damping material 2004 and netted fan safety cover 2002, plays the effect of damping protection.

In addition, in an embodiment of the present disclosure, as shown in fig. 10, fig. 10 is a schematic structural diagram of a top bin provided in the present disclosure, where the top bin includes electronic components 3 to 7. When arranging each electronic component in the top bin, the electronic component 5 in the top bin and the lower part of the electronic component 6 are respectively provided with a metal bracket for supporting the distribution of the electronic components on the upper layer, so that the electronic components 5 and the electronic components 6 which emit heat can be intensively distributed on the lower surface, and the heat dissipation at the uniform temperature is carried out by being attached to the metal brackets below.

In one or more embodiments of the present disclosure, the first cooling fan 200 may also be configured as a centrifugal fan, and an air outlet of the centrifugal fan is directed to the first air outlet 500, and hot air inside the cabinet may enter through one side of the centrifugal fan and be discharged through the air outlet to the first air outlet 500. Alternatively, the first cooling fan 200 may be configured as another type of fan, and the present specification is not limited thereto, as long as the air in the cabin can be controlled to be discharged.

In one or more embodiments of the present disclosure, the second cooling fan 202 may also be configured as an axial fan, and the external air may enter the bottom compartment from the second air inlet 404, enter from one side of the axial fan, enter the cooling duct 2042 from the other side of the axial fan, and be guided to the second air outlet 502 via the cooling duct 2042. Alternatively, the second heat radiation fan 202 may be provided as another type of fan, and the present specification is not limited thereto, as long as the ventilation in the heat radiation pipe 2042 can be promoted.

Based on unmanned aerial vehicle that fig. 1 shows, this unmanned aerial vehicle includes cabin, main control circuit board and first radiator fan at least, inside this unmanned aerial vehicle cabin, can separate into top storehouse and end storehouse based on the casing in main control circuit board and this cabin, is provided with end storehouse income wind gap and top storehouse income wind gap in end storehouse bottom surface one end of this unmanned aerial vehicle, and the other end is provided with first air outlet. The bottom bin air inlet and the first air outlet form a bottom bin heat dissipation air channel penetrating through the bottom bin, and the top bin air inlet and the first air outlet form a top bin heat dissipation air channel penetrating through the top bin. When radiating, the main control circuit board can control the first cooling fan at the first air outlet, guide external air to radiate the bottom bin through the bottom bin radiating air duct, and guide external air to radiate the top bin through the top bin radiating air duct. In this specification, through end storehouse heat dissipation wind channel and top storehouse heat dissipation wind channel to end storehouse and top storehouse respectively dispel the heat for the inside circulation of air of machine storehouse has improved radiating efficiency.

And, set up unmanned aerial vehicle and external air inlet and outlet in unmanned aerial vehicle end storehouse bottom surface in this specification, even under the great circumstances of contrary wind or wind-force, rainwater and dust also are difficult to get into inside unmanned aerial vehicle machine storehouse, and waterproof dustproof effect obtains very big promotion.

Claims (13)

1. The unmanned aerial vehicle is characterized by at least comprising a cabin, a main control circuit board and a first cooling fan;

the main control circuit board and the shell of the machine cabin divide the interior of the machine cabin into a top cabin and a bottom cabin; a bottom bin air inlet and a top bin air inlet are formed in one end of the bottom surface of the bottom bin, a first air outlet is formed in the other end of the bottom bin, a bottom bin heat dissipation air channel penetrating through the bottom bin is formed through the bottom bin air inlet and the first air outlet, and a top bin heat dissipation air channel penetrating through the top bin is formed through the top bin air inlet and the first air outlet;

the main control circuit board is used for controlling the first cooling fan;

the first cooling fan is located at the first air outlet and is used for guiding external air to cool the bottom bin through the bottom bin cooling air channel and guiding external air to cool the top bin through the top bin cooling air channel according to control of the main control circuit board.

2. The unmanned aerial vehicle of claim 1, wherein the first cooling fan is an axial fan, and the hot air in the cabin is vertically discharged from the first air outlet through the axial fan.

3. The unmanned aerial vehicle of claim 1, wherein the bottom surface of the bottom bin is provided with a partition plate extending toward the machine bin, and the main control circuit board and the partition plate divide the interior of the machine bin into a top bin and a bottom bin.

4. The unmanned aerial vehicle of claim 3, wherein the bottom bin air inlet and the top bin air inlet are respectively disposed on two sides of the partition plate.

5. The unmanned aerial vehicle of claim 1, wherein the first cooling fan rotates a fan to discharge hot air in the unmanned aerial vehicle cabin according to the control of the main control circuit board, and negative pressure is formed in the unmanned aerial vehicle cabin;

based on the negative pressure in the unmanned aerial vehicle cabin, external air is pressed into the bottom cabin from the bottom cabin air inlet, is discharged from the first air outlet through the bottom cabin heat dissipation air duct, and is pressed into the top cabin from the top cabin air inlet, and is discharged from the first air outlet through the top cabin heat dissipation air duct.

6. The unmanned aerial vehicle of claim 1, wherein the lower surface of the main control circuit board is attached to the heat dissipation assembly, and the electronic components on the main control circuit board conduct heat dissipation through the heat dissipation assembly.

7. The drone of claim 6, wherein the heat dissipating assembly comprises a heat dissipating shell and a heat dissipating conduit.

8. The unmanned aerial vehicle of claim 7, wherein the bottom surface of the bottom bin of the unmanned aerial vehicle is further provided with a second air inlet and a second air outlet, and the main control heat dissipation air duct is formed by the second air inlet, the heat dissipation pipeline and the second air outlet.

9. The unmanned aerial vehicle of claim 8, wherein a second cooling fan is provided at a second air inlet of the unmanned aerial vehicle, and the main control circuit board is further configured to control the second cooling fan;

the second cooling fan is used for guiding external air to cool the cooling pipeline through the main control cooling air channel according to the control of the main control circuit board.

10. The drone of claim 9, wherein the second heat dissipating fan is a centrifugal fan.

11. The unmanned aerial vehicle of claim 7, wherein the heat dissipation shell is of a bowl-shaped structure, the upper edge of the heat dissipation shell is attached to the main control circuit board, the lower surface of the bowl body of the heat dissipation shell is attached to the heat dissipation pipeline, and the upper surface of the bowl body of the heat dissipation shell is attached to the electronic components on the main control circuit board.

12. The unmanned aerial vehicle of claim 7, wherein the heat dissipation duct comprises a horizontal duct and an arc-shaped duct, and a second heat dissipation fan is disposed at a second air inlet of the unmanned aerial vehicle;

one end of the horizontal pipeline is communicated with the air outlet of the second cooling fan, the other end of the horizontal pipeline is communicated with the arc-shaped pipeline, and the outlet of the arc-shaped pipeline faces the second air outlet.

13. The unmanned aerial vehicle of claim 2, wherein the axial flow fan is configured with a fan guard;

the fan protection cover is filled with vibration damping materials and fixedly connected with the bottom surface of the bottom bin through fasteners.

Images