CN109070987B

CN109070987B - Unmanned aerial vehicle's horn subassembly and unmanned aerial vehicle

Info

Publication number: CN109070987B
Application number: CN201780024160.1A
Authority: CN
Inventors: 刘煜程; 丘力
Original assignee: SZ DJI Technology Co Ltd
Current assignee: SZ DJI Technology Co Ltd
Priority date: 2017-12-29
Filing date: 2017-12-29
Publication date: 2022-07-15
Anticipated expiration: 2037-12-29
Also published as: CN109070987A; WO2019127390A1

Abstract

The utility model provides an unmanned aerial vehicle's (100) horn subassembly (20) and contained this horn subassembly (20) unmanned aerial vehicle (100), horn subassembly (20) include horn (22) and protection network (24), and horn (22) are formed with ventilation chamber (226), and vent hole (2242) have still been seted up in horn (22), and vent hole (2242) intercommunication ventilation chamber (226) and external world; the protective net (24) is installed in the ventilation cavity (226), the protective net (24) covers the ventilation holes (2242), protective holes (242) are formed in the protective net (24), and the diameter of each protective hole (242) is smaller than that of each ventilation hole (2242).

Description

Unmanned aerial vehicle's horn subassembly and unmanned aerial vehicle

Technical Field

The invention relates to the technical field of consumer electronics, in particular to an unmanned aerial vehicle arm assembly and an unmanned aerial vehicle.

Background

The louvre needs to be seted up on unmanned aerial vehicle's casing usually to increase the air convection in external air and the casing, and distribute away the heat that unmanned aerial vehicle work produced, however, inside outside dust also can enter into the casing through the louvre, the dust is attached to in unmanned aerial vehicle's inner structure, leads to unmanned aerial vehicle's performance to worsen easily.

Disclosure of Invention

The embodiment of the invention provides an unmanned aerial vehicle and a horn assembly of a body of the unmanned aerial vehicle.

The unmanned aerial vehicle's horn subassembly of embodiment of the invention includes:

the mechanical arm is provided with a ventilation cavity and a ventilation hole, and the ventilation hole is communicated with the ventilation cavity and the outside; and

the protective net is arranged in the ventilation cavity and covers the ventilation holes, protective holes are formed in the protective net, and the aperture of each protective hole is smaller than that of each ventilation hole.

The unmanned aerial vehicle of the embodiment of the invention comprises a horn component and a motor, wherein the horn component comprises:

the protective net is arranged in the ventilation cavity and covers the ventilation holes, protective holes are formed in the protective net, and the aperture of each protective hole is smaller than that of each ventilation hole;

the motor is installed on the horn, the motor includes stator and rotor, the rotor includes the casing, the casing is formed with accepts the chamber in order to accept the stator, the casing includes top cap and side cap, the side cap is certainly the edge extension of top cap, the top cap is isolated it is external with accepting the chamber.

A drone according to another embodiment of the invention includes a horn assembly and a fuselage assembly,

the horn assembly includes:

the fuselage assembly includes:

the body is communicated with the ventilation cavity and comprises an inner surface and an outer surface which are back to back, and a data hole penetrating through the inner surface and the outer surface is formed in the body; and

the protective cover is detachably arranged on the outer surface and covers the data hole.

In the arm component and the unmanned aerial vehicle, the protective net is arranged at the position corresponding to the vent hole, so that dust is not easy to enter the arm from the vent hole, and the interior of the unmanned aerial vehicle is not easy to be influenced by the dust.

Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic perspective view of an unmanned aerial vehicle according to an embodiment of the invention;

fig. 2 is a schematic perspective view of a drone according to an embodiment of the present invention;

fig. 3 is an enlarged schematic view of part III of the drone shown in fig. 2;

fig. 4 and 5 are schematic perspective views of the body assembly, the pan-tilt head and the camera of the unmanned aerial vehicle according to the embodiment of the invention;

fig. 6 is an enlarged schematic view of a VI portion of the fuselage assembly of the drone shown in fig. 5;

fig. 7 is a schematic perspective view of a bottom shell of the drone according to an embodiment of the invention;

fig. 8 is an enlarged schematic view of section VIII of the bottom housing of the drone shown in fig. 7;

FIGS. 9 and 10 are perspective views of protective caps according to embodiments of the present invention;

figure 11 is an enlarged schematic view of the section XI of the drone shown in figure 2;

fig. 12 is a perspective view schematically showing a motor according to an embodiment of the present invention.

Description of the drawings with the main elements symbols:

the unmanned aerial vehicle 100, the body assembly 10, the body 12, the main housing 122, the upper housing 1222, the lower housing 1224, the bottom housing 124, the inner surface 1241, the outer surface 1242, the heat dissipation hole 1243, the pan/tilt/zoom mounting hole 1244, the data hole 1245, the USB data hole 1246, the data card hole 1247, the frequency-tuning button hole 1248, the positioning hole 1249, the body escape slot 124a, the body boss 124b, the protection mesh 14, the filter hole 142, the protective cover 16, the body 161, the first face 1612, the second face 1614, the hollow portion 162, the hollow portion 1621, the side wall 1622, the USB bump 1623, the data card bump 1624, the frequency-tuning bump 1625, the positioning post 163, the mounting hole 1632, the recessed portion 164, the protective cover escape slot 165, the protective cover boss 166, the first wall 1661, the second wall 1662, the groove 1663, the arm assembly 20, the arm 22, the arm top housing 222, the arm 224, the air vent 2242, the first bottom housing 2244, the second hole 2246, the vent 226, the vent cavity 22424, the protective mesh 226, the motor protection mesh 242, and the motor 242, Rotor 32, casing 34, top cap 342, side cap 344, gap 3442, connecting piece 346, foot rest 40, cloud platform 50, camera 60, screw 70.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. The same or similar reference numbers in the drawings identify the same or similar elements or elements having the same or similar functionality throughout.

In addition, the embodiments of the present invention described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the embodiments of the present invention, and are not to be construed as limiting the present invention.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, an unmanned aerial vehicle 100 according to an embodiment of the present invention includes a body assembly 10, a horn assembly 20, and a motor 30. The drone 100 may be an unmanned aerial vehicle, an unmanned ship, an unmanned vehicle, and the like, in the embodiment of the present invention, the drone 100 is taken as an unmanned aerial vehicle for illustration, and the unmanned aerial vehicle may be a quadrotor, a hexarotor, an octarotor, a sixteen rotor, and the like, and it is understood that the specific form of the drone 100 may be other, and is not limited herein.

Referring to fig. 1 to 4, the body assembly 10 includes a body 12, a protection net 14 and a protection cover 16.

Fuselage 12 can be as the partly in unmanned aerial vehicle 100's the shell, can be used for accommodating the functional module such as the control module (like treater, flight control system etc.) and the power module (like battery, battery compartment etc.) of unmanned aerial vehicle 100 in the fuselage 12, and fuselage 12 can be for the installation carrier as each functional module to for each functional module provides protection waterproof, dustproof, anticollision etc. In the embodiment of the present invention, the cradle head 50 may be further mounted on the body 12, so that the camera 60 is mounted on the cradle head 50, the camera 60 may be used for taking pictures or videos when the unmanned aerial vehicle 100 flies, and the shooting angle of the camera 60 may be adjusted by adjusting the posture of the unmanned aerial vehicle 100 and/or the cradle head 50. Further, in the embodiment of the present invention, the main body 12 is further provided with a foot stand 40, the foot stand 40 is mounted on the same side of the main body 12 as the pan/tilt head 50, and when the unmanned aerial vehicle 100 lands on the landing platform, the foot stand 40 can be used for supporting the main body 12, the pan/tilt head 50 and the camera 60, so as to prevent the main body 12, the pan/tilt head 50 and the camera 60 from being damaged due to landing, specifically, the foot stand 40 is respectively disposed on two sides of the pan/tilt head 50.

The body 12 includes a main housing 122 and a bottom housing 124. After the unmanned aerial vehicle 100 normally falls, the bottom case 124 is located below the main case 122, the bottom case 124 and the main case 122 may be detachably connected, specifically, the bottom case 124 and the main case 122 may be connected in a manner of fastening, screwing, or the like so as to be detachable, the main case 122 and the bottom case 124 together form a storage cavity, and the above-mentioned functional modules and the like may be stored in the storage cavity.

Referring to fig. 1 and 2, the main housing 122 includes an upper housing 1222 and a lower housing 1224, and the upper housing 1222 and the lower housing 1224 may be connected by fastening, screwing, gluing, or the like. A bottom case mounting hole may be formed in a side of the lower case 1224 opposite to the upper case 1222, and after the bottom case 124 is connected to the lower case 1224, the bottom case 124 shields the bottom case mounting hole to prevent dust from entering the receiving cavity, and when maintenance is required, the bottom case 124 may be detached from the bottom case mounting hole of the lower case 1224. In some embodiments, the upper case 1222 and/or the lower case 1224 may be vented to facilitate air circulation between the receiving cavity and the outside, thereby facilitating heat dissipation generated by the operation of the functional module.

Referring to fig. 3 to 5, the bottom case 124 includes an inner surface 1241 and an outer surface 1242. The inner surface 1241 is located at one side of the containing cavity, the outer surface 1242 is opposite to the inner surface 1241, the bottom case 124 is provided with a heat dissipation hole 1243, the heat dissipation hole 1243 penetrates through the inner surface 1241 and the outer surface 1242, that is, the heat dissipation hole 1243 is communicated with the containing cavity and the outside, the outside air can enter the containing cavity through the heat dissipation hole 1243, and the air in the containing cavity can also enter the outside through the heat dissipation hole 1243. The shapes of the heat dissipation holes 1243 may be equal or different, the shapes of the heat dissipation holes 1243 may be circular, rectangular, elliptical, etc., the number of the heat dissipation holes 1243 may be plural, and the sizes of the plurality of heat dissipation holes 1243 may be equal or different. In the embodiment of the present invention, the shape of the heat dissipation holes 1243 is circular to facilitate processing and to have an attractive appearance, the sizes of the plurality of heat dissipation holes 1243 are not completely the same, for example, the heat dissipation hole 1243 at the position corresponding to the functional module with a large heat generation amount may be larger, the heat dissipation hole 1243 at the position corresponding to the functional module with a high sealing requirement may be smaller, the plurality of heat dissipation holes 1243 may also be designed according to the flow characteristic of the air in the receiving cavity, and the plurality of heat dissipation holes 1243 may be combined and arranged according to the positions and sizes of the plurality of heat dissipation holes 1243, so that the machine body 12 has a high aesthetic degree, which is not limited herein.

Referring to fig. 2, the bottom shell 124 further defines a pan-tilt mounting hole 1244, and the pan-tilt 50 can pass through the pan-tilt mounting hole 1244 and be mounted on the bottom shell 124. Further, the bottom case 124 is further provided with a distance measuring hole corresponding to a distance measuring module accommodated in the accommodating cavity, and the distance measuring module may be a depth camera 60 to measure the distance between the body 12 and an obstacle below by using the Time of flight (TOF) principle and other principles.

Referring to fig. 7 and 8, the bottom case 124 further has a data hole 1245, and the data hole 1245 penetrates through the inner surface 1241 and the outer surface 1242. In the embodiment of the present invention, the data hole 1245 includes a USB data hole 1246, a data card hole 1247 and a frequency-matching button hole 1248. The USB data hole 1246 corresponds to a USB data interface accommodated in the accommodating cavity, and when the user uses the unmanned aerial vehicle, the user may connect to an external device through an external USB connector, such as a mobile phone or a computer, so as to call flight records, flight parameters, captured image information, and the like stored in the unmanned aerial vehicle 100, or set the flight parameters and the like of the unmanned aerial vehicle 100. The data card hole 1247 corresponds to a data card slot accommodated in the accommodating cavity, and a user can pass a data card (such as a TF card and an SD card) through the data card hole 1247 and insert the data card slot, so that the data card and the unmanned aerial vehicle 100 perform data interaction, specifically, information such as a flight line and flight parameters in the data card can be imported into the unmanned aerial vehicle 100, and information such as a flight record can also be imported into the data card by the unmanned aerial vehicle 100. Frequency button hole 1248 corresponds with the frequency button of accomodating in the intracavity, and the user can use the needle when the remote controller that needs with unmanned aerial vehicle 100 carries out the frequency with unmanned aerial vehicle 100, for example the thimble, passes and presses the frequency button behind frequency button hole 1248 to further realize the correct frequency of remote controller and unmanned aerial vehicle 100. Preferably, the USB data hole 1246, the data card hole 1247 and the frequency-matching button hole 1248 are disposed close to each other, so that a user can know the positions of the plurality of data holes 1245 at a time, specifically, the USB data hole 1246 and the data card hole 1247 may be rectangular, the frequency-matching button hole 1248 may be circular, and the length directions of the USB data hole 1246 and the data card hole 1247 may be identical, and more specifically, may be on the same straight line, so that the USB data interface and the data card slot are disposed in the receiving cavity. The frequency button hole 1248, the USB data hole 1246 and the data card hole 1247 are arranged in a triangular shape, specifically, the USB data hole 1246 and the data card hole 1247 may be respectively located at opposite sides of the frequency button hole 1248, and more specifically, the frequency button hole 1248 may correspond to a midpoint position of a connection line of the USB data hole 1246 and the data card hole 1247. Of course, it is understood that the specific type of the data hole 1245 is not limited to the USB data hole 1246, the data card hole 1247 and the audio button hole 1248, and other types of data holes 1245, such as micro-USB data card holes, lightning interface holes, etc., may be provided according to actual needs, and the number of the data holes 1245 may be other, such as only one or two of the USB data hole 1246, the data card hole 1247 and the audio button hole 1248, which will not be described in detail herein.

The bottom housing 124 further defines positioning holes 1249, and a fastener (e.g., a screw) can pass through the positioning holes 1249 to fixedly connect the bottom housing 124 with the lower housing 1224. In the present embodiment, the positioning hole 1249 is opened close to the data hole 1245, so that the protective cover 16, the bottom case 124 and the lower case 1224 can be fixed and connected together by using the fastening member when the protective cover 16 is mounted on the bottom case 124. The number of the positioning holes 1249 may be plural, for example, two, and two positioning holes 1249 are respectively opened at both sides of the data hole 1245.

Referring to fig. 3 and 5, the protection net 14 is disposed in the receiving cavity, and specifically, the protection net 14 is disposed on the inner surface 1241. The protection net 14 covers the heat dissipation holes 1243, and air can enter the storage cavity only by passing through the protection net 14 after passing through the heat dissipation holes 1243. The protection net 14 is formed with a filtering hole 142, and the aperture of the filtering hole 142 is smaller than the aperture of the heat dissipation hole 1243, specifically, the ratio of the aperture of the protection net 14 to the aperture of the heat dissipation hole 1243 may be 0.1, 0.2, 0.35, 0.5, and the like. It can be understood that, since the aperture of the filtering holes 142 is smaller than the aperture of the heat dissipating holes 1243, part of the sundries, such as dust, paper dust, cotton wool, etc., passing through the heat dissipating holes 1243 from the outside can be effectively intercepted by the protection net 14 and will not enter the machine body 12, thereby preventing the sundries from affecting the normal operation of the functional modules, and meanwhile, the air can still pass through the protection net 14 to dissipate the heat in the machine body 12. The protective mesh 14 may be detachably mounted on the bottom case 124, for example, by being engaged with the bottom case 124, and screwed to facilitate cleaning and replacement of the protective mesh 14 by a user. In some embodiments, the protection net 14 may be a single-layer net or a multi-layer net, and a weak current may also be applied to the protection net 14, so that under the action of the electric field, the protection net 14 can better capture the impurities entering the heat dissipation holes 1243 from the outside, and will not pass through the filtering holes 142 and enter the receiving cavity.

Referring to fig. 4 to 6, the protective cover 16 can be mounted on the bottom casing 124, and when the protective cover 16 is mounted on the bottom casing 124, the protective cover 16 can block the data hole 1245. Referring to fig. 9 and 10, the protective cover 16 includes a body 161, a bump 162, and a positioning post 163. When the user needs to use the data hole 1245, the user may detach the protective cover 16 from the bottom case 124 to expose the data hole 1245, and when the user does not need to use the data hole 1245, the protective cover 16 may be re-installed on the bottom case 124 to shield the data hole 1245, so as to prevent external dust, moisture, and the like from entering the receiving cavity through the data hole 1245.

The body 161 is formed with a first face 1612 and a second face 1614 that are opposite. First surface 1612 is coupled to outer surface 1242, and specifically, when protective cover 16 is mounted on bottom casing 124, first surface 1612 is abutted against outer surface 1242, so as to improve the sealing performance of the fit between protective cover 16 and bottom casing 124.

The bump 162 is formed on the first surface 1612, the bump 162 protrudes from the first surface 1612, and when the protective cover 16 is mounted on the bottom case 124, the bump 162 extends into the data hole 1245 and matches with the data hole 1245. Since the bump 162 extends into the data hole 1245, on one hand, the data hole 1245 is further sealed to prevent external dust, moisture and the like from entering the data hole 1245, and on the other hand, a pressure may be formed between the bump 162 and the inner wall of the data hole 1245, so that the bump 162 cannot easily fall out of the data hole 1245, that is, the protective cover 16 cannot easily separate from the bottom case 124. Specifically, the cross-sectional size of the bump 162 is larger than the hollow size of the data hole 1245, so that when the bump 162 extends into the data hole 1245, the outer wall of the bump 162 abuts against the inner wall of the data hole 1245, so that a pressure is formed between the outer wall and the inner wall. The height of the protrusion 162 protruding from the first surface 1612 may be equal to the depth of the data hole 1245, so that the protrusion 162 does not protrude into the receiving cavity to occupy the space in the receiving cavity, and the matching area between the protrusion 162 and the data hole 1245 is large. The bump 162 may be formed with a hollow portion 1621 and a side wall 1622, the side wall 1622 being formed around the hollow portion 1621, the side wall 1622 abutting against an inner wall of the data hole 1245 when the bump 162 is inserted into the data hole 1245, and the side wall 1622 being elastically deformed inward when the side wall 1622 is pressed by the inner wall due to the bump 162 being further formed with the hollow portion 1621, the hollow portion 1621 providing a space for the inward elastic deformation of the side wall 1622. Further, the bump 162 may be made of a material with good elasticity, such as silicon rubber, etc., so that the bump 162 is matched with the data hole 1245 and the bump 162 is not easy to scratch the inner wall of the data hole 1245.

In the embodiment of the present invention, the bump 162 may include a USB bump 1623, a data card bump 1624, and a frequency alignment bump 1625 corresponding to the location and type of the data hole 1245. The USB bump 1623 is configured to extend into the USB data hole 1246 and fit with the USB data hole 1246, and the USB bump 1623 may have a "C" shape, so that the USB bump 1623 may better fit the shape of the USB data hole 1246. The data card protrusion 1624 is configured to protrude into the data card hole 1247 and fit into the data card hole 1247, and the data card protrusion 1624 may have an "L" shape, so that the data card protrusion 1624 can be better fitted into the data card hole 1247. The centering protrusion 1625 is adapted to protrude into the centering button hole 1248 and fit into the centering button hole 1248, and the centering protrusion 1625 may have a columnar shape so that the centering protrusion 1625 can be well fitted into the centering button hole 1248. It is understood that, corresponding to the distribution of the USB data holes 1246, the data card holes 1247 and the frequency alignment button holes 1248, the USB bumps 1623, the data card bumps 1624 and the frequency alignment bumps 1625 are also arranged in a triangle, the USB bumps 1623 and the data card bumps 1624 are respectively located on two opposite sides of the frequency alignment bumps 1625, and specifically, the frequency alignment bumps 1625 may correspond to a midpoint position of a connecting line between the USB bumps 1623 and the data card bumps 1624. Of course, the specific type and number of the bumps 162 are not limited to the above examples, the bumps 162 may also include only one or two of the USB bump 1623, the data card bump 1624, and the frequency matching bump 1625, and the shapes of the plurality of bumps 162, the arrangement and the position relationship among the plurality of bumps 162 may also be adjusted according to the specific shapes of the plurality of data holes 1245, and the arrangement and the position relationship among the plurality of data holes 1245.

Referring to fig. 8 to 10, the positioning posts 163 protrude from the first surface 1612, and when the protective cover 16 is mounted on the bottom case 124, the positioning posts 163 are engaged with the positioning holes 1249. The positioning post 163 further has a mounting hole 1632, when the positioning post 163 is matched with the positioning hole 1249, the mounting hole 1632 is aligned with the positioning hole 1249, and a fastening member (e.g., a screw) can pass through the mounting hole 1632 and the positioning hole 1249 to fixedly connect the bottom shell 124 and the protective cover 16. The number of the positioning posts 163 corresponding to the positioning holes 1249 may also be multiple, for example, two positioning posts 163 are respectively disposed on two sides of the bump 162.

Referring to fig. 1 and 2, the arm assemblies 20 are mounted on the fuselage 12, the number of the arm assemblies 20 may be multiple, for example, four, six, eight, sixteen, etc., and multiple arm assemblies 20 may be mounted at equal angles around the fuselage 12 and extend in a divergent manner around the circumference of the fuselage 12, in one example, the arm assemblies 20 and the fuselage 12 may move relative to each other, for example, when the arm assemblies 20 are not needed, the arm assemblies 20 may be folded and close to the fuselage 12, so as to reduce the space occupied by the drone 100 when not in use. The horn assembly 20 may be used to connect the power module and the fuselage assembly 10 of the drone 100, the horn assembly 20 transferring the traction of the motion module to the fuselage 12. Referring to fig. 11, the horn assembly 20 includes a horn 22 and a protection net 24.

Referring to fig. 1, 2 and 11, the arm 22 includes an arm top shell 222 and an arm bottom shell 224. The top arm shell 222 interfaces with the bottom arm shell 224 to form a vent cavity 226, and the vent cavity 226 can communicate with the receiving cavity. In an embodiment of the present invention, the top arm casing 222 may be integrally formed with the upper casing 1222, and the bottom arm casing 224 may be integrally formed with the lower casing 1224, but in other embodiments, the top arm casing 222 may be separately formed from the upper casing 1222, and the bottom arm casing 224 may be separately formed from the lower casing 1224.

The bottom shell 224 of the arm is provided with a vent hole 2242, or the vent hole 2242 is provided at the lower side of the arm 22, the vent hole 2242 communicates with the outside and the ventilation cavity 226, the outside air can pass through the vent hole 2242 to enter the ventilation cavity 226, and the air in the ventilation cavity 226 can also pass through the vent hole 2242 to enter the outside. Specifically, the vent holes 2242 extend in the longitudinal direction, the longitudinal direction of the vent holes 2242 coincides with the longitudinal direction of the horn 22, and the longitudinal direction of the horn 22 may be the direction away from the body 12 on the horn 22. In the embodiment of the present invention, the ventilation holes 2242 include first holes 2244 and second holes 2246, the first holes 2244 and the second holes 2246 are disposed at intervals, and the first holes 2244 and the second holes 2246 are axially symmetric along the central axis of the arm 22, that is, the sizes and shapes of the first holes 2244 and the second holes 2246 may be equal to each other, so as to simplify the processing difficulty.

The protective net 24 is installed in the ventilation cavity 226, the protective net 24 covers the ventilation holes 2242, and air needs to pass through the protective net 24 after passing through the ventilation holes 2242 to enter the ventilation cavity 226. The protection net 24 is formed with protection holes 242, the aperture of the protection holes 242 is smaller than the aperture of the ventilation holes 2242, specifically, the ratio of the aperture of the protection net 24 to the aperture of the ventilation holes 2242 may be 0.1, 0.2, 0.35, 0.5, and the like. It will be appreciated that, since the apertures of the protection holes 242 are smaller than the apertures of the ventilation holes 2242, some of the foreign objects, such as dust, paper dust, cotton wool, etc., passing through the ventilation holes 2242 from the outside may be effectively intercepted by the protection net 24 without entering the ventilation cavity 226, while air may still pass through the protection net 24 to dissipate the heat in the ventilation cavity 226. The protection net 24 may be detachably mounted on the bottom chassis 224 of the boom, for example, by being engaged with the bottom chassis 224 of the boom, and screwed to facilitate the user to clean and replace the protection net 24. In some embodiments, the protection net 24 may be a single-layer net or a multi-layer net, and a weak current may be applied to the protection net 24, so that the protection net 24 can better capture the impurities entering the ventilation holes 2242 from the outside under the action of the electric field, and the impurities do not pass through the protection holes 242 and enter the ventilation cavity 226.

Referring to fig. 1, the motor 30 is mounted on the horn 22. The motor 30 may be provided with a propeller 70, and the motor 30 is driven by electric power to rotate and drive the propeller 70 to rotate, so that the propeller 70 generates lift force when rotating and drives the arm assembly 20 and the body assembly 10 to move and rotate. Referring to fig. 11, the propeller 70 disturbs the external airflow during the rotation process to drive the external airflow to flow in a predetermined direction, and in one embodiment, the propeller 70 rotates to drive the external airflow to pass through the ventilation holes 2242 and enter the ventilation chamber 226.

Referring to fig. 1 and 12, the motor 30 includes a rotor 32 and a stator. When the motor 30 is mounted on the horn 22, the stator is stationary relative to the horn 22 and the rotor 32 rotates relative to the stator. The rotor 32 includes a housing 34, and the housing 34 includes a top cover 342 and a side cover 344. The top cover 342 and the side cover 344 together define a receiving cavity in which the stator is received. The top cover 342 is further provided with a connecting member 346, the connecting member 346 is used for being fixedly connected with the propeller 70, when the rotor 32 rotates, the propeller 70 is driven to rotate together through the connecting member 346, the top cover 342 of the embodiment of the invention isolates the accommodating cavity from the outside, or no hole communicated with the outside is formed in the top cover 342, thus, external dust and moisture are not easy to enter the motor 30 from the top cover 342, and the motor 30 can run more reliably.

Side covers 344 extend from the edges of the top cover 342, the side covers 344 may be generally cylindrical in shape, and the side covers 344 provide protection for the stator within the receiving cavity. The side cover 344 is formed with a slit 3442, the slit 3442 communicates the accommodating cavity with the outside, air can enter the accommodating cavity through the slit 3442, and air in the accommodating cavity can also enter the outside through the slit 3442. In the embodiment of the present invention, the gap 3442 is opened at an end of the side cover 344 away from the top cover 342, the gap 3442 may extend along a circumferential direction of the side cover 344, the number of the gaps 3442 may be multiple, and a width of the gap 3442 may be greater than or equal to 0.5 mm and less than or equal to 1 mm, for example, any value within the above range, such as 0.5 mm, 0.6 mm, 0.77 mm, 0.89 mm, 1.0 mm, and the like, so that the gap 3442 can keep air flowing between the outside and the receiving cavity, and at the same time, can effectively prevent dust from entering the receiving cavity.

Further, blades (not shown) extending along the radial direction of the side cover 344 may be further formed in the side cover 344, the blades are connected to the plurality of slits 3442, the blades divide the slits 3442 into a plurality of grilles, and the blades can disturb air when rotating, which is beneficial to enhancing the mutual flow of the air in the external air and the air in the accommodating cavity.

In the unmanned aerial vehicle 100 according to the embodiment of the present invention, since the protective cover 16 can shield the data hole 1245, dust is not easy to enter the body 12 from the data hole 1245; and the protection net 14 is arranged at the corresponding position of the heat dissipation hole 1243, so that dust is not easy to enter the machine body 12 from the heat dissipation hole 1243; meanwhile, a protective net 24 is arranged at a position corresponding to the vent holes 2242, so that dust is not easy to enter the machine arm 22 from the vent holes 2242; and the top cover 342 is not provided with a hole communicated with the outside, the dustproof effect of the motor 30 is also better. To sum up, unmanned aerial vehicle 100 has better dustproof effect, and unmanned aerial vehicle 100 is inside to be difficult for receiving the influence of dust.

Referring to fig. 7 and 8, in some embodiments, an outer surface 1242 of the bottom case 124 is formed with a body avoiding groove 124a, the bottom case 124 further includes a body boss 124b protruding outward from a bottom of the body avoiding groove 124a, and the data hole 1245 is opened on the body boss 124 b. When the protective cover 16 is mounted on the bottom housing 124, the protective cover 16 can be partially received in the fuselage avoidance groove 124a, so that the protective cover 16 does not protrude from the fuselage avoidance groove 124a too much, and the overall appearance of the drone 100 is more attractive. The body protrusion 124b protrudes outward from the body avoiding groove 124a, and the data hole 1245 is opened on the body protrusion 124b, so that a space for accommodating a data interface (for example, a USB interface, a data card socket, and the like) in the body 12 is increased. Of course, the partial data hole 1245 may not be opened on the body boss 124b, for example, as shown in fig. 8, the USB data hole 1246 and the data card hole 1247 are opened on the body boss 124b, and the frequency button hole 1248 is opened on the bottom of the body escape slot 124 a.

Correspondingly, referring to fig. 9 and 10, in some embodiments, the protection cover 16 is formed with a recess 164, the recess 164 is recessed from the first surface 1612 to the second surface 1614, the position of the recess 164 corresponds to that of the body boss 124b, and the protrusion 162 protrudes from the recess 164. When the protective cover 16 is mounted on the bottom case 124, the body boss 124b is received in the recess 164, so that the inner wall of the recess 164 can wrap the outer wall of the body boss 124b while the protrusion 162 extends into the data hole 1245, thereby further improving the sealing performance when the protective cover 16 is matched with the bottom case 124 and preventing dust from entering the body 12 from the data hole 1245. Of course, part of the bump 162 may not protrude from the recess 164, for example, as shown in fig. 10, the USB bump 1623 and the data card bump 1624 protrude from the recess 164, and the audio bump 1625 does not protrude from the recess 164.

Referring to fig. 9, in some embodiments, the second surface 1614 has a protection-cover avoiding groove 165 formed thereon and recessed toward the first surface 1612, and the protection cover 16 further includes a protection-cover boss 166, the protection-cover boss 166 protrudes outward from the bottom of the protection-cover avoiding groove 165, and the protection-cover boss 166 corresponds to the protrusion 162. The protective cover boss 166 protrudes outwardly from the bottom of the protective cover escape slot 165, where a user's fingers can extend into the protective cover escape slot 165 and grasp the protective cover boss 166 to remove the protective cover 16 from the base 124 when the user desires to remove the protective cover 16 from the base 124. Further, the protective cover boss 166 includes opposing first and

second walls

1661 and 1662, each of the first and

second walls

1661 and 1662 having a groove 1663 formed thereon, such that a user's two fingers press on the two grooves 1663 on the first and

second walls

1661 and 1662, respectively, to grasp the protective cover boss 166 and remove the protective cover 16.

In the description herein, reference to the description of the terms "certain embodiments," "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature described. In the description of the present invention, "a plurality" means at least two, e.g., two, three, unless specifically limited otherwise.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention, which is defined by the claims and their equivalents.

Claims

1. The utility model provides an unmanned aerial vehicle, its characterized in that includes horn subassembly and motor, the horn subassembly includes:

the motor is installed on the horn, the motor includes stator and rotor, the rotor includes the casing, the casing is formed with accepts the chamber in order to accept the stator, the casing includes top cap and side cap, the side cap is certainly the edge extension of top cap, the top cap is isolated it with external with accepting the chamber, the side cap is seted up and is run through the gap of side cap, the gap intercommunication accept chamber and external in the side cap, along the radial extension of side cap has the blade, the blade is connected a plurality ofly the gap is in order to incite somebody to action the gap separates into a plurality of grids.

2. The drone of claim 1, wherein the horn assembly is configured to support a propeller, the vent opening on an underside of the horn to allow external air generated by the propeller during rotation to communicate with the vent chamber through the vent and the guard aperture.

3. The drone of claim 1, wherein the horn comprises a horn top shell and a horn bottom shell, the horn top shell and the horn bottom shell are butted to form the vent cavity, and the vent is opened in the horn bottom shell.

4. The drone of claim 1, wherein the vent has a length direction that is coincident with a length direction of the horn.

5. The drone of claim 1, wherein the vent holes include a first hole and a second hole, the first hole and the second hole being spaced apart, the first hole and the second hole being axisymmetric along a central axis of the horn.

6. The drone of claim 1, wherein the width of the slot is greater than or equal to 0.5 millimeters and less than or equal to 1 millimeter.

7. The drone of claim 1, wherein the slot opens at an end of the side cover distal from the top cover.

8. An unmanned aerial vehicle is characterized by comprising a machine arm component and a machine body component,

the horn assembly includes:

the protective net is arranged in the ventilation cavity and covers the ventilation hole, a protective hole is formed in the protective net, and the aperture of the protective hole is smaller than that of the ventilation hole;

the fuselage assembly includes:

the body is communicated with the ventilation cavity and comprises an inner surface and an outer surface which are opposite to each other, and a data hole penetrating through the inner surface and the outer surface is formed in the body; and

the protective cover is detachably arranged on the outer surface and covers the data hole, and comprises a body, and a first surface and a second surface opposite to the first surface are formed on the body; the protective cover further comprises a lug protruding from the first surface, and the lug extends into the data hole and is matched with the data hole; the protection cover comprises a first surface and a second surface, wherein a protection cover avoiding groove sunken to the first surface is formed in the second surface, the protection cover further comprises a protection cover boss, the protection cover boss protrudes outwards from the bottom of the protection cover avoiding groove, and the protection cover boss corresponds to the lug in position.

9. The drone of claim 8, wherein the horn assembly is configured to support a propeller, the vent opening on an underside of the horn to allow external air flow generated by the propeller during rotation to communicate with the vent chamber through the vent and the protective aperture.

10. The drone of claim 8, wherein the horn comprises a horn top shell and a horn bottom shell, the horn top shell and the horn bottom shell interfacing to form the vent cavity, the vent opening on the horn bottom shell.

11. The drone of claim 8, wherein the vent has a length direction that is coincident with a length direction of the horn.

12. The drone of claim 8, wherein the vent holes include a first hole and a second hole, the first hole and the second hole being spaced apart, the first hole and the second hole being axisymmetric along a central axis of the horn.

13. The drone of claim 8, wherein the first face is bonded to the outer surface.

14. The drone of claim 13, wherein the first face is conformed to the outer surface.

15. The drone of claim 8, wherein the data aperture comprises a USB data aperture, and the bump comprises a USB bump, the USB bump extending into the USB data aperture.

16. The drone of claim 15, wherein the USB bump is "C" shaped.

17. The drone of claim 8, wherein the data aperture comprises a data card aperture, the projection comprising a data card projection, the data card projection extending into the data card aperture.

18. The drone of claim 17, wherein the data card bumps are "L" shaped.

19. The drone of claim 8, wherein the data aperture comprises a frequency button aperture, and the bump comprises a frequency bump that extends into the frequency button aperture.

20. A drone according to claim 19, wherein the counter-frequency bumps are cylindrical.

21. The drone of claim 8, wherein the data aperture includes a USB data aperture, a data card aperture, and a frequency button aperture, the tab including:

the USB lug extends into the USB data hole;

The data card convex block extends into the data card hole; and

and the frequency alignment lug extends into the frequency alignment button hole.

22. The unmanned aerial vehicle of claim 21, wherein the USB bumps, the data card bumps, and the frequency alignment bumps are arranged in a triangle, and the USB bumps and the data card bumps are respectively located on two opposite sides of the frequency alignment bumps.

23. The drone of claim 8, wherein the cross-sectional dimension of the tab is greater than the hollow dimension of the data aperture, and an outer wall of the tab abuts an inner wall of the data aperture to create pressure between the outer wall and the inner wall.

24. The drone of claim 8, wherein the bump is formed with a hollow and a sidewall surrounding the hollow, the sidewall abutting an inner wall of the data aperture.

25. The drone of claim 8, wherein the bumps protrude from the first face a height equal to a depth of the data holes.

26. The unmanned aerial vehicle of claim 8, wherein the body further defines a positioning hole, and the protective cover further comprises a positioning post protruding from the first surface, the positioning post cooperating with the positioning hole.

27. The unmanned aerial vehicle of claim 26, wherein the positioning post defines a mounting hole to allow a fastener to pass through the mounting hole and the positioning hole and to fixedly connect the main body and the protective cover.

28. An unmanned aerial vehicle as claimed in any one of claims 15-27, wherein the outer surface forms a fuselage evasion slot, the fuselage further comprises a fuselage boss projecting outwardly from the bottom of the fuselage evasion slot, and the data aperture is provided on the fuselage boss.

29. An unmanned aerial vehicle as claimed in claim 28, wherein the protective cover is formed with a recess that is recessed from the first face to the second face, the recess corresponding in position to the fuselage boss, the boss protruding from the recess.

30. The drone of claim 8, wherein the protective cover boss includes opposing first and second walls each having a groove formed thereon.

31. The unmanned aerial vehicle of any one of claims 8-27, wherein the fuselage is provided with heat dissipation holes penetrating through the inner surface and the outer surface, the fuselage assembly further comprises a protection net, the protection net is arranged on the inner surface and covers the heat dissipation holes, filtering holes are formed in the protection net, and the aperture of the filtering holes is smaller than that of the heat dissipation holes.

32. The unmanned aerial vehicle of any one of claims 8-27, wherein the fuselage comprises a bottom shell, the bottom shell defining a pan head mounting hole.