WO2016192016A1 - Spray head structure and unmanned aircraft using same - Google Patents

Abstract

Disclosed are an unmanned aircraft and a spray head structure thereof. The unmanned aircraft comprises an aircraft body, and the spray head structure comprises a spray nozzle, a rotating disk and a brushless electric motor. The brushless electric motor is provided on the aircraft body, the rotating disk comprises a mounting part, and the rotating disk is connected to the brushless electric motor via the mounting part. The brushless electric motor can drive the rotating disk to rotate, and the spray nozzle is provided facing towards the rotating disk. The spray head structure of the above-mentioned unmanned aircraft has a controllable spraying range and a relatively good atomization effect.

Description

Nozzle structure and unmanned aerial vehicle using the same Technical field

The invention relates to a nozzle structure and an unmanned aerial vehicle using the same.

Background technique

In recent years, unmanned aerial vehicles have been widely used in agriculture, forestry maintenance and other neighborhoods because of their stable flight, light weight, landing and landing restrictions, and power-on flight. The unmanned aerial vehicle is used to carry a sprinkler and a water tank or a medicine tank to water or spray pesticides on agricultural and forestry vegetation. However, the conventional spray head includes a brush motor, a turntable and a nozzle, and a liquid such as a syrup is sprayed from the nozzle onto a turntable driven by the brush motor, and after the medicinal water hits the turntable due to the centrifugal force, The turntable is scattered around the turntable to spray it to the agricultural and forestry vegetation.

However, the above-mentioned nozzle adopts a brush motor to drive the turntable to rotate, and the rotation speed of the turntable is difficult to accurately control, so that the spray width of the medicine water is difficult to control according to actual needs, and the rotation speed of the brush motor is relatively low, so that the mist of the medicine water is made. The effect is poor.

Summary of the invention

In view of the above, it is necessary to provide a nozzle structure in which the spray range is controllable and the atomization effect is relatively good, and an unmanned aerial vehicle using the nozzle structure.

A nozzle structure includes a nozzle, a turntable and a brushless motor. The turntable includes a mounting portion, and the turntable is connected to the brushless motor through the mounting portion. The brushless motor is capable of driving the turntable to rotate, the nozzle being disposed toward the turntable.

Further, the nozzle structure further includes an electronic governor for driving the brushless motor, and the electronic governor is capable of controlling an operating state of the brushless motor to drive the turntable to rotate.

Further, the nozzle structure further includes a mounting seat, and the electronic governor is disposed in the mounting seat.

Further, the showerhead structure further includes a conduit connected to the brushless motor and communicating with the nozzle to enable the brushless to be carried away when the flowable substance in the conduit is circulated The heat generated by the operation of the motor.

Further, the brushless motor is disposed in the mount, and the duct is disposed on the mount and adjacent to the brushless motor, so as to be able to take away when there is a flowable substance in the duct The heat generated by the operation of the brushless motor.

Further, the duct is disposed in the inner cavity of the mount and connected to the nozzle;

Or the catheter is in close contact with the outer peripheral wall of the mount and is connected to the nozzle;

Alternatively, the conduit is wound around the outer peripheral wall of the mount and connected to the nozzle;

Or the conduit is embedded in the peripheral wall of the mount and connected to the nozzle;

Alternatively, the peripheral wall of the mounting seat is a hollow structure having a storage cavity, and a peripheral wall of the mounting seat is further provided with a feeding port and a discharging port communicating with the storage cavity, and the nozzle is disposed at the outlet On the spout, the conduit is connected to the feed port.

Further, the nozzle structure further includes a holding member disposed on the mounting seat, and the conduit is relatively fixed to the mounting seat by the holding member.

Further, the brushless motor includes a motor housing, and the conduit is disposed on the motor housing to enable the brushless motor to operate when a flowable substance is passed through the conduit. The heat generated.

Further, the duct is bored in the inner cavity of the motor housing and connected to the nozzle;

Alternatively, the catheter is in close contact with the outer peripheral wall of the motor housing and is connected to the nozzle;

Alternatively, the conduit is wound around an outer peripheral wall of the motor housing and connected to the nozzle;

Or the conduit is embedded in the peripheral wall of the motor housing and connected to the nozzle;

Alternatively, the peripheral wall of the motor housing is a hollow structure having a fluid chamber, and a peripheral wall of the motor housing is further provided with an inlet and an outlet communicating with the fluid chamber, and the nozzle is disposed on the outlet The conduit is connected to the inlet.

Further, a connector of the conduit and the nozzle is received in a cavity of the mount.

Further, a spacer is disposed in the mounting seat, the partition partitions the inner cavity of the mounting seat into an electrical cavity and a motor cavity, and the electronic governor is disposed in the electrical cavity, the A brush motor is disposed in the motor cavity.

Further, the mounting seat further includes a cover member and a support member, the cover member is detachably connected to the support member; the inner cavity of the cover member forms the electrical cavity, and the inside of the support member A cavity forms the motor cavity.

Further, the mounting seat further includes a mounting member disposed in the motor cavity, and the brushless motor and the nozzle are disposed on the mounting member.

Further, the mounting member separates the motor cavity into an insulated cavity and a mounting cavity, the insulating cavity being disposed adjacent to the electrical cavity, the mounting cavity for accommodating the brushless motor.

Further, the showerhead structure further includes a sealing member, the motor cavity is provided with an opening, the mounting member is disposed at the opening, and is sealingly connected to a periphery of the opening through a sealing member.

Further, the showerhead structure further includes a conduit and a one-way valve coupled to the conduit, the one-way valve being in communication with the nozzle.

Further, the one-way valve includes a valve body connected between the nozzle and the conduit, and a valve core disposed in the valve body, the valve core being capable of sealing or opening the valve under an external force The passage in the body.

Further, the one-way valve further includes a resetting member disposed on the valve body; the resetting member abuts against the nozzle, and the other end abuts the spool to enable the spool to block a passage in the valve body.

Further, the brushless motor includes a stator and a rotor rotatably disposed on the stator, the turntable being coupled to the rotor;

Alternatively, the brushless motor includes a stator, a rotor rotatably disposed on the stator, and a rotating shaft that rotates together with the rotor, the turntable being coupled to the rotating shaft.

Further, the showerhead structure further includes a shielding member disposed between the rotor and the turntable.

Further, the outer diameter of the shielding member is larger than the maximum outer diameter of the brushless motor.

Further, the shielding member includes a shielding body corresponding to the brushless motor and a return wall disposed on a periphery of the shielding body.

Further, the shielding body is a circular disk;

Alternatively, the shielding body is a conical disc, and one end of the large diameter of the conical disc is disposed close to the turntable.

Further, the return wall is disposed around the periphery of the shielding body and extends toward the turntable.

Further, the nozzle is located outside the shutter and is disposed near a circumference of the shutter.

Further, the turntable includes a body, and the mounting portion is disposed on the body, and the brushless motor drives the body to rotate through the mounting portion.

Further, the body is a circular disk;

Or the body is a conical disk, and one end of the large diameter of the conical disk is disposed near the rotor;

Alternatively, the body is a conical disc, and one end of the small diameter of the conical disc is disposed adjacent to the rotor.

Further, the turntable further includes an extension portion that is disposed around the outer circumference of the body.

Further, the extending portion is an annular partial cone, and one end of the large diameter of the annular partial cone is disposed relatively close to the rotor;

Alternatively, the extension is an annular partial cone, and one end of the large diameter of the annular partial cone is disposed relatively far from the rotor.

Further, the showerhead structure further includes a fastener, and the turntable is detachably coupled to the brushless motor by the fastener.

An unmanned aerial vehicle comprising a fuselage and a nozzle structure, the nozzle structure comprising a brushless motor connected to the fuselage and a turntable connected to the brushless motor, the turntable comprising a mounting portion The turntable is connected to the brushless motor through the mounting portion, and the brushless motor is capable of driving the turntable to rotate, the nozzle being disposed toward the turntable.

Further, the nozzle structure further includes an electronic governor for driving the brushless motor, and the electronic governor is capable of controlling an operating state of the brushless motor to drive the turntable to rotate.

Further, the nozzle structure further includes a mounting seat, and the electronic governor is disposed in the mounting seat.

Further, the showerhead structure further includes a conduit connected to the brushless motor and communicating with the nozzle to enable the brushless to be carried away when the flowable substance in the conduit is circulated The heat generated by the operation of the motor.

Further, the brushless motor is disposed in the mount, and the duct is disposed on the mount and adjacent to the brushless motor, so as to be able to take away when there is a flowable substance in the duct The heat generated by the operation of the brushless motor.

Further, the duct is disposed in the inner cavity of the mount and connected to the nozzle;

Or the catheter is in close contact with the outer peripheral wall of the mount and is connected to the nozzle;

Alternatively, the conduit is wound around the outer peripheral wall of the mount and connected to the nozzle;

Or the conduit is embedded in the peripheral wall of the mount and connected to the nozzle;

Alternatively, the peripheral wall of the mounting seat is a hollow structure having a storage cavity, and a peripheral wall of the mounting seat is further provided with a feeding port and a discharging port communicating with the storage cavity, and the nozzle is disposed at the outlet On the spout, the conduit is connected to the feed port.

Further, the nozzle structure further includes a holding member disposed on the mounting seat, and the conduit is relatively fixed to the mounting seat by the holding member.

Further, the brushless motor includes a motor housing, and the conduit is disposed on the motor housing to enable the brushless motor to operate when a flowable substance is passed through the conduit. The heat generated.

Further, the duct is bored in the inner cavity of the motor housing and connected to the nozzle;

Alternatively, the catheter is in close contact with the outer peripheral wall of the motor housing and is connected to the nozzle;

Alternatively, the conduit is wound around an outer peripheral wall of the motor housing and connected to the nozzle;

Or the conduit is embedded in the peripheral wall of the motor housing and connected to the nozzle;

Alternatively, the peripheral wall of the motor housing is a hollow structure having a fluid chamber, and a peripheral wall of the motor housing is further provided with an inlet and an outlet communicating with the fluid chamber, and the nozzle is disposed on the outlet The conduit is connected to the inlet.

Further, a connector of the conduit and the nozzle is received in a cavity of the mount.

Further, a spacer is disposed in the mounting seat, the partition partitions the inner cavity of the mounting seat into an electrical cavity and a motor cavity, and the electronic governor is disposed in the electrical cavity, the A brush motor is disposed in the motor cavity.

Further, the mounting seat further includes a cover member and a support member, the cover member is detachably connected to the support member; the inner cavity of the cover member forms the electrical cavity, and the inside of the support member A cavity forms the motor cavity.

Further, the mounting seat further includes a mounting member disposed in the motor cavity, and the brushless motor and the nozzle are disposed on the mounting member.

Further, the mounting member separates the motor cavity into an insulated cavity and a mounting cavity, the insulating cavity being disposed adjacent to the electrical cavity, the mounting cavity for accommodating the brushless motor.

Further, the showerhead structure further includes a sealing member, the motor cavity is provided with an opening, the mounting member is disposed at the opening, and is sealingly connected to a periphery of the opening through a sealing member.

Further, the showerhead structure further includes a conduit and a one-way valve coupled to the conduit, the one-way valve being in communication with the nozzle.

Further, the one-way valve includes a valve body connected between the nozzle and the conduit, and a valve core disposed in the valve body, the valve core being capable of sealing or opening the valve under an external force The passage in the body.

Further, the one-way valve further includes a resetting member disposed on the valve body; the resetting member abuts against the nozzle, and the other end abuts the spool to enable the spool to block a passage in the valve body.

Further, the brushless motor includes a stator and a rotor rotatably disposed on the stator, the turntable being coupled to the rotor;

Alternatively, the brushless motor includes a stator, a rotor rotatably disposed on the stator, and a rotating shaft that rotates together with the rotor, the turntable being coupled to the rotating shaft.

Further, the showerhead structure further includes a shielding member disposed between the rotor and the turntable.

Further, the outer diameter of the shielding member is larger than the maximum outer diameter of the brushless motor.

Further, the shielding member includes a shielding body corresponding to the brushless motor and a return wall disposed on a periphery of the shielding body.

Further, the shielding body is a circular disk;

Alternatively, the shielding body is a conical disc, and one end of the large diameter of the conical disc is disposed close to the turntable.

Further, the return wall is disposed around the periphery of the shielding body and extends toward the turntable.

Further, the nozzle is located outside the shutter and is disposed near a circumference of the shutter.

Further, the turntable includes a body, and the mounting portion is disposed on the body, and the brushless motor drives the body to rotate through the mounting portion.

Further, the body is a circular disk;

Or the body is a conical disk, and one end of the large diameter of the conical disk is disposed near the rotor;

Alternatively, the body is a conical disc, and one end of the small diameter of the conical disc is disposed adjacent to the rotor.

Further, the turntable further includes an extension portion that is disposed around the outer circumference of the body.

Further, the extending portion is an annular partial cone, and one end of the large diameter of the annular partial cone is disposed relatively close to the rotor;

Alternatively, the extension is an annular partial cone, and one end of the large diameter of the annular partial cone is disposed relatively far from the rotor.

Further, the showerhead structure further includes a fastener, and the turntable is detachably coupled to the brushless motor by the fastener.

Further, the UAV is provided with a container for accommodating a liquid, and the nozzle communicates with the container, and the liquid in the container can be taken out and sprinkled to the outside.

Further, the unmanned aerial vehicle is further provided with an extracting device connected between the nozzle and the container, and capable of conveying the liquid in the container into the nozzle.

The above-mentioned nozzle structure adopts a brushless motor to drive the rotation of the turntable, so that the rotation speed of the turntable can be controlled more accurately, and a higher rotation speed can be obtained, so that the nozzle structure is sprayed with liquid such as syrup. The amplitude of the spray can be more precisely controlled to suit different job requirements. In the high-speed rotation state of the brushless motor, the atomization effect of the liquid such as the syrup is relatively good.

DRAWINGS

1 is a schematic block diagram of a module of an unmanned aerial vehicle according to an embodiment of the present invention.

2 is a perspective assembled view of the nozzle structure of the unmanned aerial vehicle shown in FIG. 1.

3 is a schematic cross-sectional view showing the structure of the shower head shown in FIG. 2.

4 is a perspective exploded view of the structure of the showerhead shown in FIG. 3.

FIG. 5 is a perspective exploded view of the nozzle structure of FIG. 3 from another perspective.

Main component symbol description

Nozzle structure	100
Mount	10
Mount	12
Containment department	121
Installation department	123
Flange	125
supporting item	14
Support	141
Partition	143
First through hole	1431
Connection	145
Cover	16
Zhou wall	161
Top wall	163
Second through hole	1631
Holder	18
Rotating component	30
Drive mechanism	32
Brushless Motor	320
Seat	321
stator	323
Rotor	325
Rotating shaft	327
Connection end	3271
Electronic governor	329
Turntable	34
Ontology	341
Installation department	343
Installation end	3431
Extension	345
fastener	36
Occlusion	38
Spray component	50
catheter	52
Check valve	54
Valve body	541
Connection hole	5411
First hole	5413
Second hole	5415
Spool	543
Reset piece	545
nozzle	56
Through hole	561
Unmanned aerial vehicle	200
body	210
container	230
Extraction device	250

The invention will be further illustrated by the following detailed description in conjunction with the accompanying drawings.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or the component can be in the middle. When a component is considered to "connect" another component, it can be directly connected to another component or possibly a central component. When a component is considered to be "set to" another component, it can be placed directly on another component or possibly with a centered component. The terms "vertical," "horizontal," "left," "right," and the like, as used herein, are for illustrative purposes only.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. The terminology used in the description of the present invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and/or" used herein includes any and all combinations of one or more of the associated listed items.

Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. The features of the embodiments and examples described below can be combined with each other without conflict.

Referring to FIG. 1 , a nozzle structure 100 according to an embodiment of the present invention can be applied to maintenance of agricultural and forestry vegetation, such as spraying pesticides, seeding seeds, etc., and can also be applied to other fields, such as marine decontamination, fire extinguishing, and the like. Specifically, the showerhead structure 100 is applied to an unmanned aerial vehicle 200 including a body 210 on which a container 230 for containing a flowable substance is mounted and used for The flowable material is drawn into the extraction device 250 in the showerhead structure 100. The extraction device 250 delivers the flowable material into the showerhead structure 100, and the showerhead structure 100 ejects the flowable material. The extraction device 250 can be a water pump, an exhaust fan, or the like. The flowable material can be a liquid, a powder, a granule, or the like.

Specifically, in the illustrated embodiment, the showerhead structure 100 is mounted on the body 210 of an unmanned aerial vehicle 200, the container 230 is used to hold liquid pesticides, and the extraction device 250 is a water pump for extracting liquid pesticides. The UAV 200 is equipped with the sprinkler structure 100 to spray pesticides from the air to the agricultural and forestry vegetation on the ground.

Referring to FIG. 2 simultaneously, the showerhead structure 100 includes a mount 10, a rotating assembly 30, and a spray assembly 50. Specifically, in the illustrated embodiment, the rotating assembly 30 is disposed on the mount 10, and the spray assembly 50 is disposed on the rotating assembly 30.

Referring to FIG. 3 to FIG. 5 simultaneously, the mount 10 is used to connect the UAV 200 and to mount the rotating assembly 30 and the spray assembly 50. The mount 10 includes a mounting member 12, a support member 14, a cover member 16, and a retaining member 18.

Specifically in the illustrated embodiment, the support member 14 is mounted on the mounting member 12. The cover member 16 is disposed on the support member 14 . The holding member 18 is disposed on the cover member 16 . The seal 19 is disposed between the mounting member 12 and the support member 14.

The mounting member 12 is fixed to the body 210 of the UAV 200 for mounting the rotating assembly 30. The mounting member 12 includes a receiving portion 121 and a mounting portion 123 disposed on the receiving portion 121 .

The accommodating portion 121 is substantially in the shape of a cylinder having a bottom wall for mounting a partial structure of the rotating assembly 30. The receiving portion 121 is provided with an opening at an end of the bottom wall away from the receiving portion 121.

The mounting portion 123 is substantially annular and has an outer diameter larger than an outer diameter of the receiving portion 121. The mounting portion 123 is disposed at the opening of the receiving portion 121 and is configured to mount the spray assembly 50. The outer peripheral wall of the mounting portion 123 is convexly provided with a flange 125 for carrying the sealing member 19.

The support member 14 has a cylindrical shape with a bottom wall, and is disposed on the mounting member 12 to receive the receiving portion 121 in the support member 14 . The support member 14 includes a support portion 141, a partition plate 143, and a connecting portion 145. The partition plate 143 is disposed on the support portion 141. The connecting portion 145 is disposed on the partition 143.

The support portion 141 is substantially in the shape of a hollow cylinder, and is disposed outside the receiving portion 121, and an open end of the supporting portion 141 is substantially superposed on the flange 125, and the sealing member 19 is disposed. Between the open end of the support member 14 and the flange 125, the mounting member 12 is sealingly connected to the open end of the support portion 141 through the sealing member 19. The partition plate 143 is disposed at an end of the support portion 141 away from the flange 125. The partition plate 143 and the support portion 141 together form a motor cavity for receiving the mounting member 12 and a part of the structure of the rotating assembly 30. A first through hole 1431 is defined in the partition plate 143 of the support member 14 , and the first through hole 1431 is in communication with the motor cavity for partially configuring the spray assembly 50 . Wear it. The connecting portion 145 is disposed on a side of the partition plate 143 that faces away from the support portion 141 and extends in a direction away from the partition plate 143. The connecting portion 145 is used to connect the cover member 16. Specifically, one end of the connecting portion 145 facing away from the partition plate 143 is provided with a threaded hole for connecting the cover member 16.

The cover member 16 has a cylindrical shape with a bottom wall fixedly disposed on the support member 14. The cover member 16 includes a peripheral wall 161 and a top wall 163 disposed on the peripheral wall 161.

The peripheral wall 161 has a substantially hollow cylindrical shape and is disposed on a side of the partition plate 143 facing away from the support portion 141. The top wall 163 is disposed at an end of the peripheral wall 161 away from the partition plate 143, and is connected to the connecting portion 145 by a fastener such as a screw. The top wall 163, the peripheral wall 161 and the partition 143 together form an electrical cavity for receiving a portion of the structure of the rotating assembly 30. A second through hole 1631 is defined in the top wall 163 , and the second through hole 1631 communicates with the motor cavity via the electrical cavity and the first through hole 1431 . The second through hole 1631 is configured to pass through a part of the structure of the spray assembly 50.

The holding member 18 is fixed to the outer side of the top wall 163 of the cover member 16 and is disposed corresponding to the second through hole 1631. The holder 18 is used to fix a portion of the structure of the spray assembly 50.

The rotating assembly 30 is disposed on the mounting member 12 and includes a driving mechanism 32, a turntable 34 and a fastener 36 connected to the driving mechanism 32, and a shielding member 38 disposed on the rotating plate 34.

In the present embodiment, the drive mechanism 32 includes a brushless motor 320 and an electronic governor 329 for driving the brushless motor 320.

The brushless motor 320 is housed in the housing portion 121. The brushless motor 320 includes a seat body 321, a stator 323, a rotor 325, and a rotating shaft 327. Specifically, in the illustrated embodiment, the stator 323 is fixedly disposed on the base 321 . The rotor 325 is rotatably coupled to the seat body 321. The rotating shaft 327 is disposed on the rotor 325.

The base 321 is fixed to the bottom wall of the receiving portion 121. The stator 323 is fixedly disposed on a side of the base 321 away from the bottom wall of the accommodating portion 121, and a coil (not shown) is disposed on the stator 323. The rotor 325 is disposed on the outer circumference of the stator 323 and rotatably stacked on the base 321 . The rotating shaft 327 is used to connect and drive the turntable 34 to rotate. The opposite ends of the rotating shaft 327 are respectively provided with a connecting end 3271 and a mounting end (not shown). The connecting end 3271 is fixedly inserted into the rotor 325 and protrudes out of the mounting member 12 , and the mounting end is rotatably inserted into the seat body 321 .

The electronic governor 329 is received in the electric cavity and fixed on the partition 143. The electronic governor 329 is used to control the operating state of the rotor 325, such as the rotational speed, the rotational direction, and the like. When the driving mechanism 32 is energized, the electronic governor 329 controls the rotor 325 to rotate the rotating shaft 327 relative to the stator 323 and the base 321 . Specifically, the electronic governor 329 is a FOC (Field Oriented Control) electronic governor.

In the present embodiment, the brushless motor 320 and the electronic governor 329 are respectively housed in the motor cavity and the electric cavity. The motor cavity and the electrical cavity are separated by the partition plate 143, so that the heat generated by the brushless motor 320 in the motor cavity during operation is more difficult to conduct into the electrical cavity, preventing the electronic speed regulation The device 329 is damaged by overheating. Further, the mounting member 12 is disposed in the motor cavity to divide the motor cavity into a heat insulating cavity and a mounting cavity, and the heat insulating cavity is disposed adjacent to the motor cavity. The brushless motor 320 is housed in the mounting cavity and fixed to the receiving portion 121, further blocking heat transfer between the brushless motor 320 and the electronic governor 329, and The brushless motor 320 and the electronic governor 329 provide a large heat dissipation space, which is beneficial to heat dissipation of the entire nozzle structure 100.

The turntable 34 is fixedly disposed on the rotating shaft 327 and includes a body 341, a mounting portion 343 and an extending portion 345. Specifically, in the illustrated embodiment, the mounting portion 343 and the extending portion 345 are disposed on the body 341.

The body 341 is substantially disk-shaped and is coupled to the end of the rotating shaft 327 and spaced apart from the mounting member 12.

The mounting portion 343 is disposed at a substantially central position of the body 341 and is located at a side of the body 341 facing the mounting member 12 . An end of the mounting portion 343 adjacent to the rotor 325 is provided with an mounting end 3431 for connecting the brushless motor 320. The mounting portion 343 is fixedly sleeved on the rotating shaft 327, and the mounting end 3431 is connected to the rotor 325, and the rotating shaft 327 is protruded through the mounting portion 343 and protrudes The other side of the mounting portion 343 is configured to allow the connecting end 3271 of the rotating shaft 327 to be coupled with the fastener 36 to fix the turntable 34 to the rotating shaft 327.

The extension portion 345 is a substantially annular partial cone that is disposed around the outer circumference of the body 341. One side of the extension portion 345 is coupled to the outer edge of the body 341 and the other side extends toward the mounting member 12. That is, one end of the large diameter of the extending portion 345 of the annular partial cone is disposed relatively close to the mounting member 12.

In the present embodiment, the fastener 36 is a nut. The fastener 36 is disposed at one end of the rotating shaft 327 protruding from the mounting portion 343 and screwed with the connecting end 3271 to fix the turntable 34 to the rotating shaft 327.

The shielding member 38 is disposed on a side of the mounting portion 343 facing the mounting member 12 and between the rotor 325 and the mounting portion 343. The outer diameter of the shutter 38 is larger than the outer diameter of the brushless motor 320. Further, the outer diameter of the shielding member 38 is larger than the outer diameter of the receiving portion 121. The shutter 38 is used to block liquid syrup splashed from the body 341 or the extension 345 of the turntable 34 to prevent the drive mechanism 32 from being contaminated or corroded by the syrup.

Specifically, in the illustrated embodiment, the shielding member 38 includes a shielding body 381 and a return wall 383 disposed on the shielding body 381. The shielding body 381 is substantially a circular disk fixed to the mounting portion 343 and disposed corresponding to the brushless motor 320. The return wall 383 is a substantially cylindrical peripheral wall that is disposed around the periphery of the shielding body 381 and extends toward the body 341 of the turntable 34. When the liquid medicine splashes from the turntable 34 onto the shielding body 381, since the shutter 38 follows the rotating shaft 34 synchronously, the syrup splashed onto the shielding body 381 will be under the action of the centrifugal force. The occlusion body 381 flows along the returning body 383 and falls into the turntable 34 along the return wall 383 under the action of gravity, thereby avoiding the waste of the syrup due to splashing around.

The spray assembly 50 is mounted on the mount 10 for transporting liquid syrup, spraying the syrup onto the rotating assembly 30 and dispersing the atomization. The spray assembly 50 includes a conduit 52, a one-way valve 54, and a nozzle 56 that are connected in series.

One end of the duct 52 is disposed on the extracting device 250 on the UAV 200, and the other end passes through the holding member 18, the second through hole 1631, the electric cavity, and the first A hole 1431 is bored and received in the motor cavity.

The one-way valve 54 is disposed at one end of the conduit 52 received in the motor cavity for controlling circulation and cutoff of the syrup in the spray assembly 50. The one-way valve 54 includes a valve body 541, a spool 543, and a reset member 545. The valve body 543 and the reset member 545 are disposed in the valve body 541.

A connection hole 5411 is formed in the valve body 541. In the embodiment, the connection hole 5411 is a stepped hole. The connecting hole 5411 includes a first hole 5413 and a second hole 5415. The first hole 5413 is disposed at an end of the valve body 541 near the conduit 52, and the second hole 5415 communicates with the conduit 52 through the first hole 5413. The aperture of the second hole 5415 is larger than the aperture of the first hole 5413, so that the second hole 5415 is connected with the first hole 5413 to form a step surface (not shown).

In the present embodiment, the valve body 543 is a sphere. The valve body 543 is disposed in an end of the second hole 5415 adjacent to the first hole 5413. The valve core 543 is configured to block the first hole 5413 to control the circulation and cutoff of the syrup in the one-way valve 54.

In the embodiment, the reset member 545 is a coil spring disposed in the second hole 5415. One end of the reset member 545 abuts against the valve body 543, and the other end protrudes beyond the valve body 541.

The nozzle 56 is fixed to the mounting portion 123 of the mounting member 12 for guiding the syrup conveyed from the conduit 52 to the turntable 34. One end of the nozzle 56 is connected to one end of the valve body 541 of the one-way valve 54 away from the duct 52, and the other end passes through the mounting portion 123 of the mounting member 12 and extends toward the body 341 of the turntable 34. The nozzle 56 is located outside the shutter 38 and is disposed adjacent to the periphery of the shutter 38. A through hole 561 is formed through the nozzle 56, and the through hole 561 communicates with the duct 52 through the connecting hole 5411. The through hole 561 is further configured to receive an end of the reset member 545 away from the valve core 543 to allow the reset member 545 to protrude into the nozzle 56 and abut against the nozzle 56 to The spool 543 is pressed against the stepped surface to block the first hole 5413 and cut off the circulation of the syrup in the spray assembly 50.

When the head structure 100 of the embodiment of the present invention is assembled, first, the shutter 38 is disposed on the mounting portion 343 of the turntable 34, and the turntable 34 is fixed to the brushless motor 320 by the fastener 36. On the shaft 327. Next, the brushless motor 320 is housed and fixed in the accommodating portion 121 of the mounting member 12, and the duct 52 and the check valve 54 are connected to the nozzle 56, and then the nozzle 56 is fixed to the nozzle. The mounting portion 123 of the mounting member 12 is described. Then, the support member 14 is fixedly disposed outside the mounting member 12, the conduit 52 is passed through the first through hole 1431, and the sealing member 19 is disposed on the support member 14 and the Between the mounting members 12. Finally, the holding member 18 is mounted on the cover member 16, and the cover member 16 is fixed to the mounting member 12, so that the conduit 52 passes through the second through hole. The retainer 18 is secured to the conduit member 16 by fastening the retaining member 18 to prevent loosening of the conduit 52.

When the head structure 100 of the embodiment of the present invention is used, the drive mechanism 32 is opened, and the turntable 34 is rotated at a high speed by the drive mechanism 32. The extracting device 250 presses a flowable substance such as liquid medicine into the conduit 52, and the liquid medicine is sprayed on the body 341 of the turntable 34 via the nozzle 56 after the spool 543 is opened under pressure. . Due to the centrifugal force of the body 341 during rotation, the liquid medicine impinges on the extension portion 345 of the turntable 34, is dispersed to the outside along the extension portion 345, and is finally atomized to be sprayed to the surroundings.

Since the above-mentioned nozzle structure 100 employs a brushless motor 320 and an electronic governor 329 that drives the brushless motor 320 as a driving mechanism 32 for driving the rotation of the turntable 34, the brushless motor is utilized with low loss, low noise, and operation. The advantages of smoothness and long life make the nozzles operate with relatively small noise and low loss. Since the brushless motor 320 can be directly operated by the electronic governor 329, such as controlling the rotational speed or direction, the rotational speed of the rotary disk 34 can be accurately controlled, and a higher rotational speed can be obtained. Therefore, when the nozzle structure 100 is sprayed with liquid such as syrup, the spray range can be controlled more accurately to adapt to different work requirements. When the brushless motor 320 is rotated at a high speed, the atomization effect of the liquid such as the medicinal water is relatively good.

At the same time, the spray assembly 50 is provided with a check valve 54. When the extraction device 250 stops supplying water to the conduit 52, the spool 543 is again resisted by the abutment of the reset member 545. The first hole 5413 is blocked on the step surface, so that the liquid such as the syrup can no longer flow out, and the drip phenomenon of the nozzle structure 100 after the operation is stopped can be prevented.

In addition, the electronic governor 329 is disposed on the support member 14 adjacent to the rotor 325, so that the overall structure of the shower head structure 100 is more compact and integrated and integrated, so that the showerhead structure 100 Assembly and disassembly are more convenient. The use of the brushless motor and the electronic governor as the driving mechanism 32 for driving the rotation of the turntable 34 simplifies the assembly structure and volume of the shower head structure 100 to a certain extent, and at the same time reduces the overall weight of the shower head structure 100.

Further, the duct 52 is fixed on the mounting seat 10 to prevent the duct 52 and the turntable 34 from being scratched when the nozzle structure 100 is moved, and the duct 52 and the duct can be avoided. Other components of the showerhead structure 100 are entangled. The conduit 52 is connected to the nozzle 56 through the electrical cavity and the motor cavity. When the showerhead structure 100 sprays the syrup, the syrup flows through the conduit 52, and the electrical cavity can be taken away. The heat in the motor cavity facilitates heat dissipation of the brushless motor 320 and the electronic governor 329; and the conduit 52 is received in the mount 10 and is within the motor cavity The nozzles 56 are connected to form a connector, which avoids aging, deformation, etc. caused by external weather erosion, sun exposure, etc. due to long-term exposure to the external environment, so that the conduit 52 and the The joint between the nozzles 56 is more robust and reliable, while avoiding leakage of the conduit 52 due to aging cracking.

It can be understood that the electronic governor 329 is not limited to be mounted on the support member 14, and may be mounted on the mounting member 12, the cover member 16, etc., even the electronic tone The speed 329 can also be mounted on the body 210 of the UAV 200.

It will be appreciated that the structure of the body 341 of the turntable 34 is not limited to the disc structure described above, which may be designed as other swivel structures. For example, the turntable 34 may have a conical structure, and one end of the large diameter may be disposed relatively close to the mounting member 12 or may be disposed relatively far from the mounting member 12.

It can be understood that the structure of the mounting portion 343 of the turntable 34 is not limited to the structure described above, and it can be designed as other connection mounting structures. For example, the mounting portion 343 is a through hole disposed in the body 341, and the rotating shaft 327 is fixedly connected to the fastener 36 through the through hole to connect the turntable 34 to the The brushless motor 320 is described. For example, the mounting portion 343 can be configured as a snap structure. Accordingly, the rotating shaft 327 is provided with an engaging structure that cooperates with the buckle structure, and the latching structure and the engaging structure are The phase is engaged to connect the turntable 34 to the brushless motor 320.

It can be understood that the extension 345 of the turntable 34 can be omitted, or the structure of the extension 345 can be not limited to the specific structure described above, and it can be designed as other structures. For example, the extension portion 345 is generally a conical structure, and a side away from the body 341 may extend in a direction away from the mounting member 12, that is, a large diameter of the extension portion 345 of the annular partial cone. One end is disposed relatively far from the mounting member 12. Alternatively, the extending portion 345 is an annular wave structure, and a side away from the body 341 may extend in a direction away from the mounting member 12 or may extend in a direction close to the mounting member 12.

It can be understood that the structure of the shielding body 381 of the shielding member 38 is not limited to the disc structure described above, and it can be designed as other rotating structures. For example, the shielding body 381 may have a conical structure with one end of a large diameter being disposed relatively close to the turntable 34.

It can be understood that the structure of the return wall 383 of the shutter 38 is not limited to the cylindrical peripheral wall structure described above, and it can be designed as another swing structure. For example, the return wall 383 may be a partial cone structure with one end of the large diameter disposed relatively close to the turntable 34.

It can be understood that the connecting hole 5411 can be a hole other than the stepped hole. For example, the connecting hole 5411 is a conical hole whose hole diameter gradually increases from one end near the duct 52 to one end away from the duct 52.

It can be understood that the rotating shaft 327 of the brushless motor 320 and the rotor 325 can be assembled together or integrally formed as one piece. In addition, the rotating shaft 327 can be omitted, and the turntable 34 is directly disposed on the rotating shaft 327.

It can be understood that the partition plate 143 may be disposed on the support member 14 or may be disposed on the cover member 16 to separate the inner cavity of the mount 10 into the motor cavity or the The electrical cavity can be. In addition, the cover member 16 and the support member 14 may be assembled together or integrally formed as a whole, and the partition plate 143 may be disposed inside the whole body to cover the inner cavity of the mount 10. It is sufficient to separate into the motor cavity or the electrical cavity.

It can be understood that the mounting base 10 can be omitted, and the spray assembly 50 is directly fixed to the base 321 of the brushless motor 320 through a fixing member; or the brushless motor 320 and the The spray assembly 50 is disposed on the body 210 of the UAV 200 such that the nozzle 56 is disposed adjacent to the turntable 34. It can be understood that the application of the nozzle structure 100 is not limited to spraying pesticides, and it can also be used for liquid substances such as watering, nutrient solution, etc., and can also be used for spraying solid substances capable of flowing such as powders and particles. The nozzle structure 100 can also be disposed on a conveying pipe on the ground for water, nutrient solution or pesticide to the ground vegetation.

It can be understood that the duct 52 of the spray assembly 50 may not be limited to the arrangement described above, and may be pierced or/and disposed in other areas/components other than the inner cavity of the mount 10, The brushless motor 320 may be coupled to or adjacent to the brushless motor 320 by other components to carry away heat generated by the brushless motor 320 during operation by the flowable material in the conduit 52, thereby The showerhead structure 100 has a relatively good heat dissipation effect.

For example, the conduit 52 can be held by a retaining mechanism and abut against the outer peripheral wall of the mount 10 such that the nozzle 56 faces the turntable 34; alternatively, the conduit 52 can be wrapped around the mount 10 on the outer peripheral wall or the inner peripheral wall, and the nozzle 56 toward the turntable 34; or, the conduit 52 may be embedded in the peripheral wall of the mount 10, and the nozzle toward the turntable 34; Alternatively, a portion of the conduit 52 can be threaded through one of the motor cavity and the electrical cavity, and another portion of the conduit 52 can be exposed outside the mount 10 or snugly against the mount 10 By the above arrangement, the heat generated by the brushless motor 320 can be taken away by the flowable material in the duct 52, so that the nozzle structure 100 has a relatively good heat dissipation effect. It will also be appreciated that the different arrangements of the conduits 52 described above may be combined with each other without conflict.

For example, the peripheral wall of the mounting base 10 may be configured as a hollow structure having a storage cavity. The peripheral wall of the mounting base 10 may be provided with a feeding port and a discharge port, and the feeding port and the discharging device. The mouth is connected to the storage cavity; the nozzle 56 may be disposed at the discharge port, and one end of the conduit 52 may be disposed on the extraction device 250, and the other end may be disposed on the feed port. The one-way valve 54 may be disposed on one of the nozzle 56 and the conduit 52; the extraction device 250 is capable of extracting flowable material within the container 230 into the conduit 52 and The flowable substance is sprayed onto the turntable 34 via the storage chamber of the mount 10 and the nozzle 56. The flowable material can carry away the heat generated by the operation of the brushless motor 320 when flowing through the storage cavity of the mounting seat 10, so that the nozzle structure 100 has a relatively good heat dissipation effect.

For another example, when the mount 10 is omitted, the conduit 52 can be disposed in other manners and adjacent to the brushless motor 320: when the brushless motor 320 has a motor housing peripherally, the conduit 52 The nozzle 56 may be disposed through the inner cavity of the motor housing of the brushless motor 320 such that the nozzle 56 faces the turntable 34; or the conduit 52 may be held by a holding mechanism and abutted against the brushless On the outer peripheral wall of the motor housing of the motor 320, the nozzle 56 is directed toward the turntable 34; or the duct 52 may be wound on the outer peripheral wall or the inner peripheral wall of the motor housing of the brushless motor 320, And the nozzle 56 is directed toward the turntable 34; or, the duct 52 may be embedded in the peripheral wall of the motor housing of the brushless motor 320, and the nozzle is directed toward the turntable 34; A portion of the conduit 52 can be threaded through the interior of the motor housing of the brushless motor 320, and another portion of the conduit 52 can be exposed outside or in close proximity to the motor housing of the brushless motor 320. The outer wall of the motor housing of the brushless motor 320; through the above arrangement You can make use of the flowable material within the conduit 52 removing heat generated by the brushless motor 320 is running, so that the head structure 100 having relatively good heat dissipation effect. It will also be appreciated that the different arrangements of the conduits 52 described above may be combined with each other without conflict.

Alternatively, when the brushless motor 320 has a motor housing, the peripheral wall of the motor housing of the brushless motor 320 may be configured as a hollow structure having a fluid chamber, and the motor of the brushless motor 320 An inlet and an outlet may be disposed on a peripheral wall of the housing, the inlet and the outlet being in communication with the fluid chamber; the nozzle 56 may be disposed at the outlet, and one end of the conduit 52 may be disposed at the outlet The other end of the extraction device 250 may be disposed on the inlet, the one-way valve 54 may be disposed on one of the nozzle 56 and the conduit 52; the extraction device 250 can be the container 230 The flowable material therein is drawn into the conduit 52, and the flowable material is sprayed onto the turntable 34 via a fluid chamber of the motor housing of the brushless motor 320 and the nozzle 56. The flowable material can carry away the heat generated by the operation of the brushless motor 320 when flowing through the fluid chamber of the motor housing of the brushless motor 320, so that the nozzle structure 100 has a relatively good performance. heat radiation.

The above embodiments are only intended to illustrate the technical solutions of the present invention and are not intended to be limiting, and the present invention will be described in detail with reference to the above embodiments. Those skilled in the art should understand that the technical solutions of the present invention may be modified or equivalently replaced. The spirit and scope of the technical solutions of the present invention should be deviated.

Claims (62)

1.  A nozzle structure, comprising a nozzle and a turntable, wherein the nozzle structure further comprises a brushless motor, the turntable comprises a mounting portion, and the turntable is connected to the brushless motor through the mounting portion; The brushless motor is capable of driving the turntable to rotate, the nozzle being disposed toward the turntable.
2.  A head structure according to claim 1, wherein said head structure further comprises an electronic governor for driving said brushless motor, said electronic governor being capable of controlling an operating state of said brushless motor , thereby driving the turntable to rotate.
3.  The head structure according to claim 2, wherein the nozzle structure further comprises a mounting seat, and the electronic governor is disposed in the mounting seat.
4.  A head structure according to claim 3, wherein said head structure further comprises a duct connected to said brushless motor and communicating with said nozzle to make said duct flowable When the material circulates, it can take away the heat generated by the operation of the brushless motor.
5.  The nozzle structure according to claim 4, wherein said brushless motor is disposed in said mount, said conduit being disposed on said mount adjacent said brushless motor to cause said conduit When there is a flowable substance inside, the heat generated by the operation of the brushless motor can be taken away.
6.  The nozzle structure according to claim 5, wherein the conduit is disposed in the inner cavity of the mounting seat and connected to the nozzle;

   Or the catheter is in close contact with the outer peripheral wall of the mount and is connected to the nozzle;

   Alternatively, the conduit is wound around the outer peripheral wall of the mount and connected to the nozzle;

   Or the conduit is embedded in the peripheral wall of the mount and connected to the nozzle;

   Alternatively, the peripheral wall of the mounting seat is a hollow structure having a storage cavity, and a peripheral wall of the mounting seat is further provided with a feeding port and a discharging port communicating with the storage cavity, and the nozzle is disposed at the outlet On the spout, the conduit is connected to the feed port.
7.  The head structure according to claim 5, wherein the nozzle structure further comprises a holding member disposed on the mounting seat, and the conduit is relatively fixed to the mounting seat by the holding member.
8.  The head structure according to claim 4, wherein said brushless motor comprises a motor housing, and said duct is disposed on said motor housing such that a flowable substance in said duct is circulated It can take away the heat generated by the operation of the brushless motor.
9.  The nozzle structure according to claim 8, wherein the conduit is bored in the inner cavity of the motor housing and connected to the nozzle;

   Alternatively, the catheter is in close contact with the outer peripheral wall of the motor housing and is connected to the nozzle;

   Alternatively, the conduit is wound around an outer peripheral wall of the motor housing and connected to the nozzle;

   Or the conduit is embedded in the peripheral wall of the motor housing and connected to the nozzle;

   Alternatively, the peripheral wall of the motor housing is a hollow structure having a fluid chamber, and a peripheral wall of the motor housing is further provided with an inlet and an outlet communicating with the fluid chamber, and the nozzle is disposed on the outlet The conduit is connected to the inlet.
10.  The showerhead structure according to claim 4, wherein the connector of the conduit and the nozzle is received in a cavity of the mount.
11.  The nozzle structure according to claim 3, wherein a spacer is disposed in the mounting seat, and the partition partitions the inner cavity of the mounting seat into an electric cavity and a motor cavity, and the electronic governor The electric brush is disposed in the electric cavity, and the brushless motor is disposed in the motor cavity.
12.  The nozzle structure according to claim 11, wherein the mounting base further comprises a cover member and a support member, the cover member is detachably connected to the support member; and the inner cavity of the cover member is formed The electrical cavity, the inner cavity of the support forms the motor cavity.
13.  The nozzle structure according to claim 11, wherein the mounting base further comprises a mounting member, the mounting member is disposed in the motor cavity, and the brushless motor and the nozzle are disposed on the mounting member on.
14.  A nozzle structure according to claim 13 wherein said mounting member separates said motor cavity into an insulated cavity and a mounting cavity, said insulating cavity being disposed adjacent said electrical cavity, said mounting cavity being for The brushless motor is housed.
15.  The head structure according to claim 14, wherein the nozzle structure further comprises a sealing member, the motor chamber is provided with an opening, the mounting member is disposed at the opening, and passes through the sealing member and the opening The perimeter is sealed.
16.  The showerhead structure of claim 1 wherein said showerhead structure further comprises a conduit and a one-way valve coupled to said conduit, said one-way valve being in communication with said nozzle.
17.  A nozzle structure according to claim 16, wherein said one-way valve comprises a valve body connected between said nozzle and said conduit, and a valve body disposed in said valve body, said valve body being capable of The passage in the valve body is blocked or opened under the action of an external force.
18.  A nozzle structure according to claim 17, wherein said one-way valve further comprises a reset member disposed on said valve body; said reset member abutting against said nozzle and the other end abutting said a spool that enables the spool to block passages within the valve body.
19.  The nozzle structure according to claim 1, wherein the brushless motor comprises a stator and a rotor rotatably disposed on the stator, the turntable being coupled to the rotor;

    Alternatively, the brushless motor includes a stator, a rotor rotatably disposed on the stator, and a rotating shaft that rotates together with the rotor, the turntable being coupled to the rotating shaft.
20.  A head structure according to claim 19, wherein said head structure further comprises a shutter disposed between said rotor and said turntable.
21.  The head structure according to claim 20, wherein the outer diameter of the shutter is larger than the maximum outer diameter of the brushless motor.
22.  The head structure according to claim 20, wherein the shutter comprises a shielding body corresponding to the brushless motor and a return wall disposed on a periphery of the shielding body.
23.  The nozzle structure according to claim 22, wherein the shielding body is a circular disk;

    Alternatively, the shielding body is a conical disc, and one end of the large diameter of the conical disc is disposed close to the turntable.
24.  The head structure according to claim 23, wherein the return wall is disposed around the periphery of the shielding body and extends toward the turntable.
25.  The head structure according to claim 20, wherein said nozzle is located outside said shutter and disposed adjacent to a periphery of said shutter.
26.  The head structure according to claim 19, wherein the turntable comprises a body, the mounting portion is disposed on the body, and the brushless motor drives the body to rotate through the mounting portion.
27.  The shower head structure according to claim 26, wherein the body is a circular disk;

    Or the body is a conical disk, and one end of the large diameter of the conical disk is disposed near the rotor;

    Alternatively, the body is a conical disc, and one end of the small diameter of the conical disc is disposed adjacent to the rotor.
28.  The head structure according to claim 26, wherein said turntable further comprises an extension portion, said extension portion being circumferentially disposed on said outer circumference of said body.
29.  The head structure according to claim 28, wherein the extending portion is an annular partial cone, and one end of the large diameter of the annular partial cone is disposed relatively close to the rotor;

    Alternatively, the extension is an annular partial cone, and one end of the large diameter of the annular partial cone is disposed relatively far from the rotor.
30.  The head structure according to any one of claims 1 to 29, wherein the head structure further comprises a fastener, and the turntable is detachably coupled to the brushless motor by the fastener.
31.  An unmanned aerial vehicle comprising a fuselage, characterized in that: the unmanned aerial vehicle further comprises a nozzle structure, the nozzle structure comprises a brushless motor connected to the fuselage and connected to the brushless motor a turntable, the turntable comprising a mounting portion, the turntable being connected to the brushless motor by the mounting portion, the brushless motor being capable of driving the turntable to rotate, the nozzle being disposed toward the turntable.
32.  The UAV according to claim 31, wherein said nozzle structure further comprises an electronic governor for driving said brushless motor, said electronic governor being capable of controlling operation of said brushless motor a state, thereby driving the turntable to rotate.
33.  The UAV according to claim 32, wherein said nozzle structure further comprises a mount, and said electronic governor is disposed in said mount.
34.  The UAV according to claim 33, wherein said nozzle structure further comprises a duct, said duct being coupled to said brushless motor and communicating with said nozzle to provide said duct When the flowing material circulates, it can take away the heat generated by the operation of the brushless motor.
35.  The UAV according to claim 34, wherein said brushless motor is disposed in said mount, said conduit being disposed on said mount adjacent said brushless motor to cause said When there is a flowable substance in the conduit, the heat generated by the operation of the brushless motor can be taken away.
36.  The UAV according to claim 35, wherein the duct is disposed in the inner cavity of the mount and coupled to the nozzle;

    Or the catheter is in close contact with the outer peripheral wall of the mount and is connected to the nozzle;

    Alternatively, the conduit is wound around the outer peripheral wall of the mount and connected to the nozzle;

    Or the conduit is embedded in the peripheral wall of the mount and connected to the nozzle;

    Alternatively, the peripheral wall of the mounting seat is a hollow structure having a storage cavity, and a peripheral wall of the mounting seat is further provided with a feeding port and a discharging port communicating with the storage cavity, and the nozzle is disposed at the outlet On the spout, the conduit is connected to the feed port.
37.  An unmanned aerial vehicle according to claim 35, wherein said nozzle structure further comprises a holding member disposed on said mounting seat, said conduit being relatively fixed to said mounting seat by said retaining member.
38.  The UAV according to claim 34, wherein said brushless motor comprises a motor housing, said conduit being disposed on said motor housing to allow flowable material to flow in said conduit At the same time, the heat generated by the operation of the brushless motor can be taken away.
39.  The UAV according to claim 38, wherein the duct is bored in the inner cavity of the motor housing and connected to the nozzle;

    Alternatively, the catheter is in close contact with the outer peripheral wall of the motor housing and is connected to the nozzle;

    Alternatively, the conduit is wound around an outer peripheral wall of the motor housing and connected to the nozzle;

    Or the conduit is embedded in the peripheral wall of the motor housing and connected to the nozzle;

    Alternatively, the peripheral wall of the motor housing is a hollow structure having a fluid chamber, and a peripheral wall of the motor housing is further provided with an inlet and an outlet communicating with the fluid chamber, and the nozzle is disposed on the outlet The conduit is connected to the inlet.
40.  The UAV according to claim 34, wherein the connector of the conduit and the nozzle is received in a cavity of the mount.
41.  The UAV according to claim 33, wherein the mounting seat is provided with a partition, the partition separating the inner cavity of the mounting seat into an electric cavity and a motor cavity, and the electronic speed regulation The device is disposed in the electrical cavity, and the brushless motor is disposed in the motor cavity.
42.  The UAV according to claim 41, wherein the mounting seat further comprises a cover member and a support member, the cover member being detachably coupled to the support member; the inner cavity of the cover member Forming the electrical cavity, the inner cavity of the support forms the motor cavity.
43.  The UAV according to claim 41, wherein said mounting base further comprises a mounting member, said mounting member being disposed in said motor cavity, said brushless motor and said nozzle being disposed in said mounting On the piece.
44.  The UAV according to claim 43, wherein said mounting member separates said motor cavity into a heat insulating cavity and a mounting cavity, said heat insulating cavity being disposed adjacent to said electrical cavity, said mounting cavity being The housing of the brushless motor is accommodated.
45.  The UAV according to claim 44, wherein said nozzle structure further comprises a seal, said motor cavity being provided with an opening, said mounting member being disposed in said opening, and passing through said seal and said opening The perimeter is sealed.
46.  The UAV according to claim 31, wherein said showerhead structure further comprises a conduit and a one-way valve coupled to said conduit, said one-way valve being in communication with said nozzle.
47.  An unmanned aerial vehicle according to claim 46, wherein said one-way valve includes a valve body connected between said nozzle and said duct, and a valve body disposed in said valve body, said spool It can block or open the passage in the valve body under the action of external force.
48.  An unmanned aerial vehicle according to claim 47, wherein said one-way valve further comprises a reset member disposed on said valve body; said return member abutting against said nozzle and the other end abutting The spool is configured to enable the spool to block passages within the valve body.
49.  The unmanned aerial vehicle according to claim 31, wherein said brushless motor comprises a stator and a rotor rotatably disposed on said stator, said turntable being coupled to said rotor;

    Alternatively, the brushless motor includes a stator, a rotor rotatably disposed on the stator, and a rotating shaft that rotates together with the rotor, the turntable being coupled to the rotating shaft.
50.  The UAV according to claim 49, wherein said nozzle structure further comprises a shutter disposed between said rotor and said turntable.
51.  The UAV according to claim 50, wherein said shutter has an outer diameter greater than a maximum outer diameter of said brushless motor.
52.  The UAV according to claim 50, wherein said shutter comprises a shielding body corresponding to said brushless motor and a return wall disposed on a periphery of said shielding body.
53.  The UAV according to claim 52, wherein the obstructing body is a circular disc;

    Alternatively, the shielding body is a conical disc, and one end of the large diameter of the conical disc is disposed close to the turntable.
54.  The UAV according to claim 53, wherein said return wall is disposed around a circumference of said shielding body and extends toward said turntable.
55.  An unmanned aerial vehicle according to claim 54, wherein said nozzle is located outside said shutter and disposed adjacent to a periphery of said shutter.
56.  The unmanned aerial vehicle according to claim 49, wherein the turntable comprises a body, the mounting portion is disposed on the body, and the brushless motor drives the body to rotate through the mounting portion.
57.  The UAV according to claim 56, wherein said body is a circular disk;

    Or the body is a conical disk, and one end of the large diameter of the conical disk is disposed near the rotor;

    Alternatively, the body is a conical disc, and one end of the small diameter of the conical disc is disposed adjacent to the rotor.
58.  The UAV according to claim 56, wherein said turntable further comprises an extension portion, said extension portion being circumferentially disposed on said outer circumference of said body.
59.  An unmanned aerial vehicle according to claim 58, wherein said extending portion is an annular partial cone, and one end of said large diameter of said annular partial cone is disposed relatively close to said rotor;

    Alternatively, the extension is an annular partial cone, and one end of the large diameter of the annular partial cone is disposed relatively far from the rotor.
60.  The UAV according to any one of claims 31 to 59, wherein the nozzle structure further comprises a fastener, and the turntable is detachably coupled to the brushless motor by the fastener.
61.  The UAV according to claim 31, wherein said UAV is provided with a container for accommodating a liquid, said nozzle being in communication with said container, and capable of extracting and sprinkling liquid in said container To the outside world.
62.  An unmanned aerial vehicle according to claim 61, wherein said unmanned aerial vehicle is further provided with an extracting device connected between said nozzle and said container and capable of being inside said container The liquid is delivered into the nozzle.

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