WO2018120001A1 - Power device, power kit, and unmanned aerial vehicle - Google Patents

Power device, power kit, and unmanned aerial vehicle Download PDF

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Publication number
WO2018120001A1
WO2018120001A1 PCT/CN2016/113431 CN2016113431W WO2018120001A1 WO 2018120001 A1 WO2018120001 A1 WO 2018120001A1 CN 2016113431 W CN2016113431 W CN 2016113431W WO 2018120001 A1 WO2018120001 A1 WO 2018120001A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor
hub
motor shaft
antenna
sleeve
Prior art date
Application number
PCT/CN2016/113431
Other languages
French (fr)
Chinese (zh)
Inventor
胡孟
崔留争
陈日松
李忠洪
Original Assignee
深圳市大疆创新科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to CN201680002640.3A priority Critical patent/CN107074354B/en
Priority to PCT/CN2016/113431 priority patent/WO2018120001A1/en
Publication of WO2018120001A1 publication Critical patent/WO2018120001A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U50/00Propulsion; Power supply
    • B64U50/30Supply or distribution of electrical power
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C27/00Rotorcraft; Rotors peculiar thereto
    • B64C27/04Helicopters
    • B64C27/12Rotor drives
    • B64C27/14Direct drive between power plant and rotor hub
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D27/00Arrangement or mounting of power plants in aircraft; Aircraft characterised by the type or position of power plants
    • B64D27/40Arrangements for mounting power plants in aircraft
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D47/00Equipment not otherwise provided for
    • B64D47/02Arrangements or adaptations of signal or lighting devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U50/00Propulsion; Power supply
    • B64U50/10Propulsion
    • B64U50/19Propulsion using electrically powered motors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U10/00Type of UAV
    • B64U10/10Rotorcrafts
    • B64U10/13Flying platforms
    • B64U10/14Flying platforms with four distinct rotor axes, e.g. quadcopters

Definitions

  • the invention relates to the field of unmanned aerial vehicles, in particular to a power device, a power package and an unmanned aerial vehicle.
  • the UAV needs to receive external control signals through the antenna, transmit the video images captured by the UAV to the ground, and receive satellite navigation signals.
  • the antenna of the unmanned aerial vehicle includes a navigation antenna and an image transmission antenna.
  • the image transmission antenna can be used to receive the control signal and return the flight attitude information and the captured image.
  • the image transmission antenna is usually disposed on the tripod of the unmanned aerial vehicle, because the tripod is far away from the body of the unmanned aerial vehicle, and is located at Outside the body, the image transmission antenna is less interfered by interference sources and obstacles, and has higher signal transmission quality.
  • the size of the tripod has been greatly reduced, even for the design of a tripodless.
  • the image transmission antenna lacks a suitable mounting position, and can only be disposed on the body, and the electronic component is disposed in the body, which greatly affects the signal quality of the antenna.
  • the invention provides a power device, a power package and an unmanned aerial vehicle, which can ensure the antenna has relatively good signal quality and strength.
  • the present invention provides a power unit including a motor and a propeller, wherein the motor is used to drive the propeller to rotate, the motor has a hollow cavity at both ends, and the hollow body extends from the top to the bottom of the motor along the axial direction of the motor;
  • the propeller includes a hub and a blade connected to the hub, the hub is provided with a through hole; wherein the hub is fixedly connected to the motor, and the through hole of the hub corresponds to the hollow cavity of the motor, and is formed to be electrically connected to the antenna A threaded hole through which the connected cable passes.
  • the present invention provides a power kit including the power unit and the day as described above
  • the line device includes an antenna and a receiver.
  • the antenna is located at the top end of the propeller hub of the power unit.
  • the cable of the antenna passes through the hollow body in the power unit and is electrically connected to the receiver.
  • the present invention provides an unmanned aerial vehicle comprising a frame and a power kit as described above, wherein the frame is provided with a motor mount, the motor in the power pack is disposed on the motor mount, and the power pack is Both the antenna assembly and the propeller are located on the side of the motor remote from the motor mount.
  • the power device, the power package and the unmanned aerial vehicle of the present invention wherein the power device comprises a motor and a propeller, and the motor is used for driving the propeller to rotate.
  • the motor has a hollow cavity with two ends open, and the hollow cavity body is from the top of the motor along the axis direction of the motor. Extending to the bottom; the propeller includes a hub and a blade connected to the hub, the hub is provided with a through hole; and the hub is fixedly connected to the motor, and the through hole of the hub corresponds to the hollow cavity of the motor, and is formed for A threading hole through which a cable electrically connected to the antenna passes.
  • the top position of the propeller and the motor can be provided with an antenna, and the cable of the antenna can pass through the power device, so that the antenna for transmitting and receiving signals can be disposed on the power device; the position of the antenna is relatively empty. , signal quality and signal strength are better.
  • FIG. 1 is a schematic structural view of a power device according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic exploded view of a power unit according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic structural view of another power device according to Embodiment 1 of the present invention.
  • FIG. 5 is a schematic cross-sectional view of a power package according to Embodiment 2 of the present invention.
  • FIG. 6 is a schematic structural view of a power package according to Embodiment 2 of the present invention.
  • FIG. 7 is a schematic cross-sectional view showing another power package according to Embodiment 2 of the present invention.
  • FIG. 8 is a schematic structural view of another power package according to Embodiment 2 of the present invention.
  • FIG. 9 is a schematic structural view of an unmanned aerial vehicle according to Embodiment 3 of the present invention.
  • FIG. 10 is a schematic diagram of an antenna coverage range of an unmanned aerial vehicle according to Embodiment 3 of the present invention.
  • the power unit in this embodiment includes a motor 1 and a propeller 2 for driving the propeller 2 to rotate.
  • the motor 1 has a hollow cavity 11 which is open at both ends, and the hollow cavity 11 extends from the top to the bottom of the motor 1 in the axial direction of the motor 1.
  • the propeller 2 includes a hub 21 and a blade 22 coupled to the hub 21.
  • the hub 21 is provided with a through hole 211.
  • the hub 21 is fixedly coupled to the motor 1.
  • the through hole 211 of the hub 21 corresponds to the hollow cavity 11 of the motor 1, forming a threading hole through which the cable 41 electrically connected to the antenna passes.
  • the motor 1 in the power unit can be generally disposed on the motor mount or the motor base of the UAV, and is fixedly connected to the motor mount or the motor base through fasteners or clips.
  • the motor 1 has a rotor and a stator inside.
  • the rotor can rotate around the motor shaft 12 in the center of the motor 1 under the action of an electromagnetic field generated by the stator, and drives the propeller 2 to rotate, thereby driving the unmanned aircraft to start or stop or air attitude. Adjustment.
  • the motor 1 is internally provided with a hollow cavity 11, the longitudinal direction of which is the same as the axial direction of the motor 1, and the two ends of the hollow body 11 extend to the top and bottom of the motor 1, respectively.
  • the propeller 2 generally includes a hub 21 and a plurality of blades 22, one end of which is coupled to the hub 21 and the other end of which extends outwardly of the hub 22.
  • the blades 22 can drive the air to flow as a power for the UAV to fly.
  • a through hole 211 is provided in the center of the hub 21, and the through hole 211 corresponds to the hollow cavity 11 to form a threading hole penetrating the motor 1 and the propeller 2, and the threading hole is allowed to pass through the cable 41 connected to the antenna.
  • the antenna can be disposed on one side of the motor 1 and the propeller 2, and the cable 41 connected to the antenna can pass through the threading hole and be connected to the transceiver on the other side of the motor 1 and the like. Keep an electrical connection.
  • the axial direction of the motor 1 generally follows a vertical or approximately vertical direction in the unmanned aerial vehicle, and the propeller 2 is disposed at the top of the motor 1, the antenna can be disposed at the top of the propeller 2 and the motor 1. Position, so that the position of the antenna is relatively empty, and there are fewer obstructions around, so that the antenna can have better signal strength.
  • the hollow cavity 11 and the through hole 211 serve as a passage through the cable 41, so that the cable 41 can avoid the rotating part of the motor 1 or the rotating propeller 2 when passing through the power unit, and realize the antenna safely and reliably.
  • the electrical connection of other components ensures that the antenna can transmit and communicate electrical signals between the cable 41 and other devices.
  • the cable 41 connected to the antenna may include at least one of the following: used for the day A line-powered power line, or a feeder for transmitting signals.
  • the cable 41 may also include cables of other functions, such as control signal lines and the like.
  • the power unit further includes a sleeve 3 which is bored in the hollow body 11 of the motor 1, the shaft The inner diameter of the sleeve 3 is larger than the outer diameter of the cable 41.
  • the cable 41 can be sleeved in the sleeve 3.
  • the sleeve 3 serves to increase the insulation, electromagnetic shielding and the like.
  • the hollow body 11 inside the motor 1 may be located in the rotating member and rotates with it, the cable 41 is avoided. Due to the twisting, winding or even breaking of the hollow body 11, the sleeve 3 can be relatively fixed with the portion of the motor 1 that does not rotate, thereby making the cable 41 in a relatively static stable environment.
  • the bottom end of the sleeve 3 is provided with a limiting portion 31 for connecting and fixing to the motor mount 5 or the motor base. Since the motor mount 5 or the motor base is stationary with respect to the stator and the like of the motor 1, the sleeve 3 can also remain relatively stationary without rotating with the rotor or the like of the motor 1, thereby effectively avoiding the inside of the sleeve 3.
  • the cable 41 is twisted and the like.
  • the sleeve 3 can be fixed by screwing or the like.
  • the stopper portion 31 is a screw fastening portion
  • the motor mount 5 or the motor base is provided with a screw hole that is screwed to the screw fastening portion. Since the limiting portion 31 is fixed in the screw hole, the relative fixing between the sleeve 3 and the motor mount 5 or the motor base can be maintained.
  • the sleeve 3 can also be fixed to the motor mount 5 or the motor base by means of snapping or the like, and the sleeve 3 can be prevented from rotating by using a structure such as a limiting protrusion.
  • one of the open ends of the sleeve 3 protrudes beyond the hub 21, and the other open end protrudes from the opening of the hollow body 11 near the bottom of the motor 1.
  • the two open ends of the sleeve 3 extend out of the power unit, facilitate connection with the antenna or the motor mount 5, and the like, and facilitate the passage of the cable 41.
  • the motor 1 in the power unit has a plurality of different structures, such as an inner rotor motor that may be a rotor, an outer stator, or an outer rotor motor with a rotor outside the stator. Due to the different structure of the motor, the interior has different rotating parts and fixed parts, and accordingly, the position and form of the hollow body 11 are also different, so as to ensure that both ends can be extended to the ends of the motor 1 for the cable 41 to be worn. Assume.
  • the motor 1 in the power unit may be an outer rotor motor
  • the stator of the motor 1 is located inside the motor and surrounds the hollow body 11
  • the outer part of the motor 1 is a rotatable rotor shell
  • the hub 21 can be rotated together with the rotor case of the motor 1 to drive the UAV to fly and start and stop.
  • the motor 1 generally includes a motor shaft 12, which may be either a fixed shaft fixed to the stator or a rotating shaft rotatable with the rotor housing.
  • a motor shaft 12 which may be either a fixed shaft fixed to the stator or a rotating shaft rotatable with the rotor housing.
  • the hub 21 of the propeller 2 can be directly sleeved outside the top end of the motor shaft 12 and fixedly coupled to the motor shaft 12, that is, Rotating with the rotation of the motor shaft 12; and the hollow cavity 11 inside the motor 1 is disposed inside the motor shaft 12, at this time, the sleeve 3 passes through the motor shaft 12 and is rotatable relative to the motor shaft 12, so that When the motor shaft 12 is rotated, the sleeve 3 is fixed to the non-rotatable portion of the motor 1, or other structure for connecting the motor 1, so that the sleeve 3 itself remains stationary and does not rotate with the motor shaft 12.
  • a bearing 32 is generally disposed between the sleeve 3 and the inner wall of the hollow body 11, and the two are connected by a bearing 32. Since the inner and outer sides of the bearing 32 are freely rotatable, when the hollow cavity 11 of the motor shaft 12 rotates, the sleeve 3 is not affected by the motor shaft 12, and can remain relatively stationary with the stator of the motor 1. .
  • the bearing 32 between the sleeve 3 and the inner wall of the hollow body 11 of the motor shaft 1 may be plural, for example, two bearings respectively disposed at both ends of the sleeve, so that the relative rotation of the sleeve 3 and the motor shaft 12 can be significantly increased. Time stability.
  • FIG. 3 is a schematic structural diagram of another power device according to Embodiment 1 of the present invention.
  • the overall structure of the power unit is similar to that of the previous embodiment, except that in the present embodiment, the motor shaft 12 of the motor is fixedly connected to the stator 14 of the motor 1, and is located at the same time.
  • the rotor casing 13 outside the motor 1 rotates around the motor shaft 12, and the rotor casing 13 is fixedly coupled to the hub 21 for driving the hub 21 to rotate.
  • the hollow cavity 11 for the cable 41 is disposed inside the motor shaft 12, and the sleeve 3 is fixedly coupled to the motor shaft 12 of the motor 1.
  • the motor shaft 12 and the stator 14 are fixedly connected, the motor shaft 12 cannot be rotated.
  • the sleeve 3 can be directly fixedly connected to the hollow cavity 11 of the motor shaft 12, since both the sleeve 3 and the motor shaft 12 are Static state, so the cable 41 will not rotate, so it will not wrap Winding or even breaking phenomenon.
  • the sleeve 3 can have an interference fit with the motor shaft 12 of the motor 1.
  • the outer side of the sleeve 3 and the inner wall of the hollow body 11 have a large frictional force, which makes it difficult to achieve rotation, and also prevents the sleeve 3 from falling out of the hollow cavity 11 of the motor shaft 12.
  • FIG. 4 is a schematic structural view of still another motor according to Embodiment 1 of the present invention.
  • the hollow cavity 11 is still disposed inside the motor shaft 12, and the rotor case 13 of the motor 1 is fixedly connected with the hub 21 for driving the hub 21 to rotate; the motor shaft 12 passes through the hub 21 And the hub 21 rotates about the motor shaft 12.
  • the cable 41 can directly pass through the hollow cavity 11 of the motor shaft 12, because the motor shaft 12 is stationary, so that the cable 41 passing through the motor shaft 12 is in contact with the inner wall of the hollow body 11, There is also no rotation or entanglement.
  • the motor shaft 12 passes through the through hole of the hub 21, in order to prevent the hub 21 from contacting the motor shaft 12 and increasing the stability of the rotation of the hub 21, the motor shaft 12 and the hub 21 are A bearing 121 is also provided between the sleeves.
  • the bearing 121 can maintain the relative rotation between the hub 21 and the motor shaft 12 and provide a certain supporting effect for the hub 21.
  • the motor in the power unit may also be an inner rotor motor.
  • the external part of the motor 1 is a fixed stator, and the motor shaft 12 in the center of the motor 1 can be rotated by the rotor; the motor shaft 12 is simultaneously fixedly connected with the hub 21, and can be used to drive the hub 21 to rotate.
  • the hollow cavity 11 is disposed inside the motor shaft 12, and the sleeve 3 passes through the motor shaft 12 and is rotatable relative to the motor shaft 12.
  • the sleeve 3 can also be fixed to the non-rotatable portion of the motor 1, or the external structure for connecting the electric, 1 and remain stationary with respect to the motor 1, so that the cable is inserted through the sleeve 3.
  • the power device includes a motor and a propeller, and the motor is used to drive the propeller to rotate.
  • the motor has a hollow cavity that is open at both ends, and the hollow cavity extends from the top of the motor to the bottom along the axial direction of the motor;
  • the propeller includes a hub and a blade connected to the hub, the hub is provided with a through hole; and the hub is fixedly coupled to the motor, and the through hole of the hub corresponds to the hollow cavity of the motor to form a cable for electrically connecting the antenna Threading holes.
  • the top position of the antenna can be set, and the cable of the antenna can pass through the power device, so that the antenna for transmitting and receiving signals can be set on the power device; the position of the antenna is relatively empty, and the signal quality and signal strength are good. .
  • FIG. 5 is a schematic cross-sectional view of a power package according to Embodiment 2 of the present invention.
  • FIG. 6 is a schematic structural diagram of a power package according to Embodiment 2 of the present invention.
  • the power package 200 provided in this embodiment includes the power device 100 and the antenna device 4 in the first embodiment, wherein the antenna device 4 includes an antenna 42 and a receiver 43, and the antenna 42 is located at the power device.
  • the cable 41 of the antenna 42 passes through the hollow cavity 11 of the motor 1 in the power unit 100, and is electrically connected to the receiver 43.
  • the structure, function and working principle of the power device 100 have been described in detail in the foregoing first embodiment, and are not described herein again.
  • the power unit 100 includes a motor 1 and a propeller 2, and the motor 1 is generally disposed at a position away from the body of the arm of the UAV, and the propeller 2 is located at the top of the motor 1 to drive the unmanned aerial vehicle to start and stop. .
  • the antenna 42 is located at the top end of the hub 21 of the propeller 2. Because of its high position and away from objects such as the body of the UAV, the signal is less affected by obstacles when transmitting and receiving signals, and a relatively reliable communication and signal transmission process can be realized.
  • the cable 41 of the antenna 42 can pass through a threading hole formed by the hollow cavity 11 of the motor 1 and the through hole 211 of the hub 21 in the power unit 100, and realizes an electrical connection with the receiver 43.
  • the antenna 42 can maintain signal transmission with devices such as the receiver 43, and realize communication and signal transmission between the UAV and the external device.
  • the antenna 42 is an image transmission antenna or a positioning antenna, and at this time, the antenna 42 is usually a mushroom antenna.
  • the antenna assembly 4 further includes a locking member 44; the antenna 42 is disposed at the top end of the locking member 44, and the bottom end of the locking member 44 is located within the hub 21.
  • a corresponding fixing or connecting structure such as a connecting thread or a snap, may be provided on the locking member 44 to achieve a connection between the antenna 42 and the power unit 100.
  • the locking member 44 is provided with a through hole 441 for passing the cable 41, so that the cable 41 can pass through the inside of the locking member 44.
  • the wiring is relatively neat.
  • the bottom end of the locking member 44 can be coupled to the motor shaft 12 or the top end of the sleeve 3 that passes through the motor shaft 12.
  • the sleeve 3 is generally fixed to the motor shaft 12, or the motor mount 5, and the like. The connection is such that when the bottom end of the locking member 44 is connected to the sleeve 3, the antenna 42 is fixed to the motor shaft 12 or the motor mount 5, thereby fixing the antenna 42.
  • the bottom end of the locking member 44 and the motor shaft 12 or the top end of the sleeve 3 are typically threaded.
  • the antenna device 4 can be easily detached or mounted from the power unit 100 by screwing the locking member 44, thereby realizing quick loading and unloading of the power package 200.
  • a threaded connection such as a threaded hole may be provided at the top end of the fixed motor shaft 12 of the motor 1 at this time, and the locking is performed.
  • the piece 44 is screwed directly to the motor shaft 12.
  • the locking member 44 can be a lock nut having a polygonal outer surface, and the top end of the lock nut is used to set the antenna 42.
  • the lock nut 44 has a threaded bore that can be conveniently threadedly coupled to the antenna 42 or the power unit 100.
  • the outer surface of the lock nut 44 can be a polygon such as a hexagon or an octagon, so that the user or the maintenance personnel can quickly turn the lock nut by using a wrench or other tools to realize quick disassembly and assembly of the antenna.
  • FIG. 7 is a schematic cross-sectional view of another power package according to Embodiment 2 of the present invention.
  • FIG. 8 is a schematic structural diagram of another power package according to Embodiment 2 of the present invention.
  • the receiver 43 of the antenna device 4 in the power pack 300, can be fixed to the bottom of the antenna 42 and integrated with the antenna 42.
  • the cable 41 passing through the hollow cavity 11 of the motor 1 can be used to implement signal transmission between the receiver 43 and other devices of the UAV, such as the controller.
  • the power package includes a power device and an antenna device, wherein the antenna device includes an antenna and a receiver, the antenna is located at a top end of the propeller hub of the power device, and the cable of the antenna passes through the hollow cavity of the motor in the power device And electrically connected to the receiver.
  • the antenna in the antenna device can be disposed at the top position of the power device, the position of the antenna is relatively empty, and the surrounding obstruction is less, so that the antenna can have better signal strength.
  • FIG. 9 is a schematic structural diagram of an unmanned aerial vehicle according to Embodiment 3 of the present invention.
  • the unmanned aerial vehicle 500 includes a frame 401 and a power package 400 described in the foregoing second embodiment.
  • the frame 401 is provided with a motor mount 5, and the motor 1 in the power pack 400 It is disposed on the motor mount 5, and the antenna device 4 and the propeller 2 in the power pack 400 are both located on the side of the motor 1 remote from the motor mount 5.
  • the rack 401 of the UAV 500 may generally include an organic arm and a landing gear, and the arm extends from the body of the UAV.
  • the arm is provided with a motor mount 5 for arranging the motor 1, and the power kit 400
  • the motor 1 is fixedly disposed on the motor mount 5, and when the motor 1 drives the propeller 2 to rotate, the entire unmanned aerial vehicle 500 can be driven to fly.
  • the antenna device 4 is located at the top end of the motor 1 and the propeller 2, and has a high setting height and is away from other parts of the UAV 500, so that the signal strength is good and the reliability of signal transmission is also high.
  • the motor 1 is usually located outside the body of the UAV 500.
  • the motor 1 is far away from other parts of the UAV 500, and the space around the antenna device 4 is relatively empty, and the signal transmission effect is better.
  • the number of power packs on an unmanned aerial vehicle may be one or more.
  • FIG. 10 is a schematic diagram of an antenna coverage range of an unmanned aerial vehicle according to Embodiment 3 of the present invention. As shown in FIG. 10, when the number of the power package 400 is plural, the antennas in the power package 400 may be directional antennas with narrow beams, and the antennas are respectively oriented in different directions in the horizontal circumferential direction, so that all the antennas are in 360° omnidirectional coverage in the horizontal direction.
  • each power pack may be provided and respectively disposed on the four arms of the UAV 500, the antennas on each power pack are oriented in different directions on the horizontal outer side of the UAV 500, and each antenna covers at least 90 The range of °, so that the four power sets can work together to achieve horizontal omnidirectional coverage. Since the directional antenna has a large transmission distance, a large antenna coverage can be achieved.
  • the unmanned aerial vehicle includes a frame and a power package, and the motor mount is disposed on the frame, and the motor in the power package is disposed on the motor mount, and the antenna device and the propeller in the power package are located far away from the motor.
  • the antenna device is located at the top of the motor and the propeller, and the installation height is high, and away from other parts of the UAV, so the signal strength is good, the reliability of signal transmission is also high, and the reliable communication of the UAV can be realized.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Toys (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Details Of Aerials (AREA)

Abstract

A power device, comprising a motor (1) and a propeller (2); the motor (1) is used for driving the propeller (2) to rotate; the motor (1) has a hollow cavity (11) that is open at two ends; the hollow cavity (11) extends from the top of the motor (1) to the bottom along an axis direction of the motor (1); the propeller (2) comprises a hub (21) and a blade (22) connected to the hub (21); the hub (21) is provided with a through hole (211); the hub (21) is fixedly connected to the motor (1), and the through hole (211) corresponds to the hollow cavity (11) of the motor (1) to form a cable passing hole through which a cable (41) electrically connected to an antenna (42) passes. The power device can ensure high signal quality and strength of the antenna. Also disclosed are a power kit and an unmanned aerial vehicle.

Description

动力装置、动力套装及无人飞行器Powerplant, power pack and unmanned aerial vehicle 技术领域Technical field
本发明涉及无人飞行器领域,尤其涉及一种动力装置、动力套装及无人飞行器。The invention relates to the field of unmanned aerial vehicles, in particular to a power device, a power package and an unmanned aerial vehicle.
背景技术Background technique
无人飞行器在飞行过程中,需要通过天线接收外部的控制信号,并将无人飞行器所拍摄的视频图像发送给地面,以及接收卫星导航信号等。During the flight, the UAV needs to receive external control signals through the antenna, transmit the video images captured by the UAV to the ground, and receive satellite navigation signals.
目前,为了完成各类信号发送与接收工作,无人飞行器的天线包括导航天线和图像传输天线等。其中,图像传输天线可用于接收控制信号,并回传飞行姿态信息和拍摄图像。而为了避开导航天线,以及无人飞行器的电调等辐射干扰源,通常情况下,图像传输天线设置在无人飞行器的脚架上,因脚架距离无人飞行器的机体较远,且位于机体外侧,所以图像传输天线受到干扰源和障碍的干扰较少,具有较高的信号传输质量。At present, in order to complete various types of signal transmission and reception work, the antenna of the unmanned aerial vehicle includes a navigation antenna and an image transmission antenna. Wherein, the image transmission antenna can be used to receive the control signal and return the flight attitude information and the captured image. In order to avoid the navigation antenna and the radiation interference source such as the unmanned aerial vehicle's electronic adjustment, the image transmission antenna is usually disposed on the tripod of the unmanned aerial vehicle, because the tripod is far away from the body of the unmanned aerial vehicle, and is located at Outside the body, the image transmission antenna is less interfered by interference sources and obstacles, and has higher signal transmission quality.
然而,随着无人飞行器的日益小型化,脚架的尺寸也大为缩小,甚至为无脚架的设计。此时,图像传输天线等缺乏合适的安装位置,而只能设置在机体上,机体内设有电子元器件,大大影响了天线的信号质量。However, with the increasing miniaturization of unmanned aerial vehicles, the size of the tripod has been greatly reduced, even for the design of a tripodless. At this time, the image transmission antenna lacks a suitable mounting position, and can only be disposed on the body, and the electronic component is disposed in the body, which greatly affects the signal quality of the antenna.
发明内容Summary of the invention
本发明提供一种动力装置、动力套装及无人飞行器,能够保证天线具有较为良好的信号质量和强度。The invention provides a power device, a power package and an unmanned aerial vehicle, which can ensure the antenna has relatively good signal quality and strength.
第一方面,本发明提供一种动力装置,包括电机和螺旋桨,电机用于驱动螺旋桨旋转,电机具有两端开口的中空腔体,中空腔体沿电机的轴线方向从电机的顶部延伸至底部;螺旋桨包括桨毂和连接在桨毂上的桨叶,桨毂设有通孔;其中,桨毂与电机固定连接,并且桨毂的通孔与电机的中空腔体对应,形成用于供与天线电连接的线缆穿过的穿线孔。In a first aspect, the present invention provides a power unit including a motor and a propeller, wherein the motor is used to drive the propeller to rotate, the motor has a hollow cavity at both ends, and the hollow body extends from the top to the bottom of the motor along the axial direction of the motor; The propeller includes a hub and a blade connected to the hub, the hub is provided with a through hole; wherein the hub is fixedly connected to the motor, and the through hole of the hub corresponds to the hollow cavity of the motor, and is formed to be electrically connected to the antenna A threaded hole through which the connected cable passes.
第二方面,本发明提供一种动力套装,包括如上所述的动力装置和天 线装置,天线装置包括天线和接收机,天线位于动力装置中的螺旋桨的桨毂顶端,天线的线缆穿过动力装置中的中空腔体,并与接收机电连接。In a second aspect, the present invention provides a power kit including the power unit and the day as described above The line device includes an antenna and a receiver. The antenna is located at the top end of the propeller hub of the power unit. The cable of the antenna passes through the hollow body in the power unit and is electrically connected to the receiver.
第三方面,本发明提供一种无人飞行器,包括机架和如上所述的动力套装,机架上设置有电机安装座,动力套装中的电机设置在电机安装座上,且动力套装中的天线装置和螺旋桨均位于电机的远离电机安装座的一侧。In a third aspect, the present invention provides an unmanned aerial vehicle comprising a frame and a power kit as described above, wherein the frame is provided with a motor mount, the motor in the power pack is disposed on the motor mount, and the power pack is Both the antenna assembly and the propeller are located on the side of the motor remote from the motor mount.
本发明的动力装置、动力套装及无人飞行器,其中动力装置包括电机和螺旋桨,电机用于驱动螺旋桨旋转,电机具有两端开口的中空腔体,中空腔体沿电机的轴线方向从电机的顶部延伸至底部;螺旋桨包括桨毂和连接在桨毂上的桨叶,桨毂设有通孔;而桨毂与电机固定连接,并且桨毂的通孔与电机的中空腔体对应,形成用于供与天线电连接的线缆穿过的穿线孔。这样在动力装置中,螺旋桨和电机的顶端位置可以设置天线,且天线的线缆可以从动力装置中穿过,从而使得动力装置上还可以设置用于收发信号的天线;天线设置的位置较为空旷,信号质量和信号强度均较好。The power device, the power package and the unmanned aerial vehicle of the present invention, wherein the power device comprises a motor and a propeller, and the motor is used for driving the propeller to rotate. The motor has a hollow cavity with two ends open, and the hollow cavity body is from the top of the motor along the axis direction of the motor. Extending to the bottom; the propeller includes a hub and a blade connected to the hub, the hub is provided with a through hole; and the hub is fixedly connected to the motor, and the through hole of the hub corresponds to the hollow cavity of the motor, and is formed for A threading hole through which a cable electrically connected to the antenna passes. In the power device, the top position of the propeller and the motor can be provided with an antenna, and the cable of the antenna can pass through the power device, so that the antenna for transmitting and receiving signals can be disposed on the power device; the position of the antenna is relatively empty. , signal quality and signal strength are better.
附图说明DRAWINGS
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍,显而易见地,下面描述中的附图是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.
图1是本发明实施例一提供的动力装置的结构示意图;1 is a schematic structural view of a power device according to Embodiment 1 of the present invention;
图2是本发明实施例一提供的动力装置的爆炸示意图;2 is a schematic exploded view of a power unit according to Embodiment 1 of the present invention;
图3是本发明实施例一提供的另一种动力装置的结构示意图;3 is a schematic structural view of another power device according to Embodiment 1 of the present invention;
图4是本发明实施例一提供的又一种电机的结构示意图;4 is a schematic structural view of still another motor according to Embodiment 1 of the present invention;
图5是本发明实施例二提供的一种动力套装的截面示意图;5 is a schematic cross-sectional view of a power package according to Embodiment 2 of the present invention;
图6是本发明实施例二提供的一种动力套装的结构示意图;6 is a schematic structural view of a power package according to Embodiment 2 of the present invention;
图7是本发明实施例二提供的另一种动力套装的截面示意图;7 is a schematic cross-sectional view showing another power package according to Embodiment 2 of the present invention;
图8是本发明实施例二提供的另一种动力套装的结构示意图;8 is a schematic structural view of another power package according to Embodiment 2 of the present invention;
图9是本发明实施例三提供的一种无人飞行器的结构示意图;9 is a schematic structural view of an unmanned aerial vehicle according to Embodiment 3 of the present invention;
图10是本发明实施例三提供的无人飞行器的天线覆盖范围示意图。FIG. 10 is a schematic diagram of an antenna coverage range of an unmanned aerial vehicle according to Embodiment 3 of the present invention.
附图标记说明: Description of the reference signs:
1-电机;1-motor
2—螺旋桨;2—propeller;
3—轴套;3—the bushing;
4—天线装置;4—antenna device;
5—电机安装座;5—Motor mount;
11—中空腔体;11—the hollow body;
12—电机轴;12—motor shaft;
13—转子壳;13—rotor shell;
14—定子;14-stator;
21—桨毂;21—paddle hub;
22—桨叶;22—blade;
31—限位部;31—Limited part;
32、121—轴承;32, 121 - bearing;
41—线缆;41—cable;
42—天线;42—antenna;
43—接收机;43-receiver;
44—锁紧件;44—locking member;
100—动力装置;100—power unit;
200、300、400—动力套装;200, 300, 400 - power kit;
211—通孔;211—through hole;
401—机架;401—rack;
500—无人飞行器。500 - unmanned aerial vehicle.
具体实施方式detailed description
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the 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.
图1是本发明实施例一提供的动力装置的结构示意图。图2是本发明 实施例一提供的动力装置的爆炸示意图。如图1和图2所示,本实施例中的动力装置,包括电机1和螺旋桨2,电机1用于驱动螺旋桨2旋转。电机1具有两端开口的中空腔体11,中空腔体11沿电机1的轴线方向从电机1的顶部延伸至底部。螺旋桨2包括桨毂21和连接在桨毂21上的桨叶22。桨毂21设有通孔211。桨毂21与电机1固定连接。桨毂21的通孔211与电机1的中空腔体11对应,形成用于供与天线电连接的线缆41穿过的穿线孔。1 is a schematic structural view of a power unit according to Embodiment 1 of the present invention. Figure 2 is the invention A schematic diagram of the explosion of the power unit provided in the first embodiment. As shown in FIGS. 1 and 2, the power unit in this embodiment includes a motor 1 and a propeller 2 for driving the propeller 2 to rotate. The motor 1 has a hollow cavity 11 which is open at both ends, and the hollow cavity 11 extends from the top to the bottom of the motor 1 in the axial direction of the motor 1. The propeller 2 includes a hub 21 and a blade 22 coupled to the hub 21. The hub 21 is provided with a through hole 211. The hub 21 is fixedly coupled to the motor 1. The through hole 211 of the hub 21 corresponds to the hollow cavity 11 of the motor 1, forming a threading hole through which the cable 41 electrically connected to the antenna passes.
具体地,动力装置中的电机1通常可以设置在无人飞行器的电机安装座或电机底座上,并通过紧固件或者卡接件与电机安装座或者电机底座实现固定连接。电机1内部具有转子和定子,转子可在定子通电后产生的电磁场作用下绕着电机1中央的电机轴12旋转,并驱动螺旋桨2产生转动,从而可带动无人飞行器进行启停或者空中姿态的调整。电机1内部设置有中空腔体11,中空腔体11的长度方向和电机1的轴向方向相同,且中空腔体11的两端分别延伸至电机1的顶部和底部。而螺旋桨2通常包括桨毂21和多个桨叶22,桨叶22的一端连接在桨毂21上,另一端向桨毂22外侧伸出。桨毂21转动时,桨叶22即可带动空气流动,以作为无人飞行器飞行的动力。在桨毂21中央设置有通孔211,通孔211和中空腔体11相对应,共同形成贯穿电机1与螺旋桨2的穿线孔,该穿线孔可供与天线连接的线缆41穿过。Specifically, the motor 1 in the power unit can be generally disposed on the motor mount or the motor base of the UAV, and is fixedly connected to the motor mount or the motor base through fasteners or clips. The motor 1 has a rotor and a stator inside. The rotor can rotate around the motor shaft 12 in the center of the motor 1 under the action of an electromagnetic field generated by the stator, and drives the propeller 2 to rotate, thereby driving the unmanned aircraft to start or stop or air attitude. Adjustment. The motor 1 is internally provided with a hollow cavity 11, the longitudinal direction of which is the same as the axial direction of the motor 1, and the two ends of the hollow body 11 extend to the top and bottom of the motor 1, respectively. The propeller 2 generally includes a hub 21 and a plurality of blades 22, one end of which is coupled to the hub 21 and the other end of which extends outwardly of the hub 22. When the hub 21 is rotated, the blades 22 can drive the air to flow as a power for the UAV to fly. A through hole 211 is provided in the center of the hub 21, and the through hole 211 corresponds to the hollow cavity 11 to form a threading hole penetrating the motor 1 and the propeller 2, and the threading hole is allowed to pass through the cable 41 connected to the antenna.
由于动力装置中设置有穿线孔,所以天线可以设置在电机1和螺旋桨2的一侧,而和天线连接的线缆41可从穿线孔穿过,并与电机1另一侧的收发装置等部件保持电性连接。此时,由于无人飞行器中,一般电机1的轴向方向会沿着竖直或者近似竖直的方向,而螺旋桨2布置在电机1的顶部,所以天线可以布置在螺旋桨2和电机1的顶端位置,这样天线所在的位置较为空旷,周边的遮挡物较少,因而可以保证天线具有较好的信号强度。而中空腔体11和通孔211作为穿设线缆41的通道,可以让线缆41在穿过动力装置时,避开电机1的转动部件或者转动的螺旋桨2,并安全可靠地实现天线与其它部件的电性连接,以保证天线能够通过线缆41与其它设备之间实现电信号的传递和通信。Since the power supply device is provided with a threading hole, the antenna can be disposed on one side of the motor 1 and the propeller 2, and the cable 41 connected to the antenna can pass through the threading hole and be connected to the transceiver on the other side of the motor 1 and the like. Keep an electrical connection. At this time, since the axial direction of the motor 1 generally follows a vertical or approximately vertical direction in the unmanned aerial vehicle, and the propeller 2 is disposed at the top of the motor 1, the antenna can be disposed at the top of the propeller 2 and the motor 1. Position, so that the position of the antenna is relatively empty, and there are fewer obstructions around, so that the antenna can have better signal strength. The hollow cavity 11 and the through hole 211 serve as a passage through the cable 41, so that the cable 41 can avoid the rotating part of the motor 1 or the rotating propeller 2 when passing through the power unit, and realize the antenna safely and reliably. The electrical connection of other components ensures that the antenna can transmit and communicate electrical signals between the cable 41 and other devices.
可选的,和天线相连接的线缆41可以包括如下至少一种:用于为天 线供电的电源线,或者是用于传送信号的馈线。此外,线缆41也可以包括其他功能的线缆,例如控制信号线等。Optionally, the cable 41 connected to the antenna may include at least one of the following: used for the day A line-powered power line, or a feeder for transmitting signals. In addition, the cable 41 may also include cables of other functions, such as control signal lines and the like.
通常,由于用于和天线连接的线缆41一般为较软的导线,为了对其进行保护,动力装置中还包括轴套3,轴套3穿设在电机1的中空腔体11内,轴套3的内径大于线缆41的外径。这样线缆41可套设在轴套3之中。轴套3一方面起到增加绝缘性、电磁屏蔽等保护作用,另一方面,由于电机1内部的中空腔体11可能会位于旋转部件内,并会随之发生转动,所以为了避免线缆41因中空腔体11的转动而发生扭转、缠绕甚至是断裂,轴套3可以和电机1的定子等不发生转动的部分相对固定,因而使线缆41处于相对静止的稳定环境中。Generally, since the cable 41 for connection with the antenna is generally a relatively soft wire, in order to protect it, the power unit further includes a sleeve 3 which is bored in the hollow body 11 of the motor 1, the shaft The inner diameter of the sleeve 3 is larger than the outer diameter of the cable 41. Thus, the cable 41 can be sleeved in the sleeve 3. On the one hand, the sleeve 3 serves to increase the insulation, electromagnetic shielding and the like. On the other hand, since the hollow body 11 inside the motor 1 may be located in the rotating member and rotates with it, the cable 41 is avoided. Due to the twisting, winding or even breaking of the hollow body 11, the sleeve 3 can be relatively fixed with the portion of the motor 1 that does not rotate, thereby making the cable 41 in a relatively static stable environment.
为了与电机1的不发生转动的部位或结构保持相对固定,轴套3的底端设置有限位部31,限位部31用于与电机安装座5或电机底座连接并固定。由于电机安装座5或电机底座相对于电机1的定子等部位为静止状态,所以轴套3也可以保持相对静止,而不会随电机1的转子等部位产生旋转,从而有效避免轴套3内的线缆41发生扭转等现象。In order to maintain a relatively fixed position or structure of the motor 1 that does not rotate, the bottom end of the sleeve 3 is provided with a limiting portion 31 for connecting and fixing to the motor mount 5 or the motor base. Since the motor mount 5 or the motor base is stationary with respect to the stator and the like of the motor 1, the sleeve 3 can also remain relatively stationary without rotating with the rotor or the like of the motor 1, thereby effectively avoiding the inside of the sleeve 3. The cable 41 is twisted and the like.
进一步的,通常轴套3可以采用螺接等方式实现固定。例如,限位部31为螺纹紧固部,电机安装座5或电机底座设有与螺纹紧固部相螺合的螺孔。由于限位部31被固定在螺孔中,所以可保持轴套3与电机安装座5或者是电机底座之间的相对固定。此外,轴套3也可以采用卡接等方式与电机安装座5或者电机底座进行固定,并利用限位凸起等结构避免轴套3产生旋转。Further, in general, the sleeve 3 can be fixed by screwing or the like. For example, the stopper portion 31 is a screw fastening portion, and the motor mount 5 or the motor base is provided with a screw hole that is screwed to the screw fastening portion. Since the limiting portion 31 is fixed in the screw hole, the relative fixing between the sleeve 3 and the motor mount 5 or the motor base can be maintained. In addition, the sleeve 3 can also be fixed to the motor mount 5 or the motor base by means of snapping or the like, and the sleeve 3 can be prevented from rotating by using a structure such as a limiting protrusion.
为了便于实现与天线等其它部件的安装和连接,轴套3的其中一个开口端突出于桨毂21之外,另外一个开口端突出于中空腔体11的靠近电机1的底部的开口。这样轴套3的两个开口端均伸出动力装置,便于与天线或者电机安装座5等进行连接,也便于进行线缆41的穿设。In order to facilitate the mounting and connection with other components such as an antenna, one of the open ends of the sleeve 3 protrudes beyond the hub 21, and the other open end protrudes from the opening of the hollow body 11 near the bottom of the motor 1. Thus, the two open ends of the sleeve 3 extend out of the power unit, facilitate connection with the antenna or the motor mount 5, and the like, and facilitate the passage of the cable 41.
一般的,动力装置中的电机1具有多种不同的结构,例如可以是转子在内,定子在外的内转子电机,也可以是定子在内,转子在外的外转子电机。由于不同结构的电机,其内部具有不同的旋转部位和固定部位,因而相应的,中空腔体11的位置和形式也有所不同,以保证均能延伸至电机1两端,以供线缆41穿设。 Generally, the motor 1 in the power unit has a plurality of different structures, such as an inner rotor motor that may be a rotor, an outer stator, or an outer rotor motor with a rotor outside the stator. Due to the different structure of the motor, the interior has different rotating parts and fixed parts, and accordingly, the position and form of the hollow body 11 are also different, so as to ensure that both ends can be extended to the ends of the motor 1 for the cable 41 to be worn. Assume.
作为一种可选的实施方式,动力装置中的电机1可为外转子电机,电机1的定子位于电机内部,并环绕在中空腔体11之外,而电机1的外部为能够旋转的转子壳,桨毂21可跟随电机1的转子壳一起转动,以驱动无人飞行器飞行和启停。As an alternative embodiment, the motor 1 in the power unit may be an outer rotor motor, the stator of the motor 1 is located inside the motor and surrounds the hollow body 11 , and the outer part of the motor 1 is a rotatable rotor shell The hub 21 can be rotated together with the rotor case of the motor 1 to drive the UAV to fly and start and stop.
通常的,电机1一般均包括有电机轴12,电机轴12既可以是与定子相固定的固定轴,也可以是可随转子壳一起旋转的转动轴。如图1所示,当电机轴12为可随转子壳13一起旋转的轴时,螺旋桨2的桨毂21可直接套设在电机轴12的顶端外侧,并且与电机轴12固定连接,这样即可跟随电机轴12的转动而旋转;而电机1内部的中空腔体11设置在电机轴12内部,此时,轴套3穿过电机轴12,并且相对于电机轴12是可转动的,这样当电机轴12转动时,轴套3会与电机1的不可转动的部位,或者其它用于连接电机1的结构相固定,因而轴套3自身仍保持静止,不会随电机轴12一起转动。Generally, the motor 1 generally includes a motor shaft 12, which may be either a fixed shaft fixed to the stator or a rotating shaft rotatable with the rotor housing. As shown in FIG. 1, when the motor shaft 12 is a shaft that can rotate with the rotor casing 13, the hub 21 of the propeller 2 can be directly sleeved outside the top end of the motor shaft 12 and fixedly coupled to the motor shaft 12, that is, Rotating with the rotation of the motor shaft 12; and the hollow cavity 11 inside the motor 1 is disposed inside the motor shaft 12, at this time, the sleeve 3 passes through the motor shaft 12 and is rotatable relative to the motor shaft 12, so that When the motor shaft 12 is rotated, the sleeve 3 is fixed to the non-rotatable portion of the motor 1, or other structure for connecting the motor 1, so that the sleeve 3 itself remains stationary and does not rotate with the motor shaft 12.
其中,为了实现轴套3与电机轴12之间的可转动连接,轴套3和中空腔体11的内壁之间一般设置有轴承32,且两者之间通过轴承32连接。由于轴承32的内外侧之间可自由转动,所以当电机轴12的中空腔体11发生旋转时,轴套3不会受到电机轴12的影响,仍可保持与电机1的定子相对静止的状态。轴套3和电机轴1的中空腔体11内壁之间的轴承32可以为多个,例如是两个分别设置在轴套两端的轴承,这样可以显著增加轴套3和电机轴12在相对旋转时的稳定性。In order to realize the rotatable connection between the sleeve 3 and the motor shaft 12, a bearing 32 is generally disposed between the sleeve 3 and the inner wall of the hollow body 11, and the two are connected by a bearing 32. Since the inner and outer sides of the bearing 32 are freely rotatable, when the hollow cavity 11 of the motor shaft 12 rotates, the sleeve 3 is not affected by the motor shaft 12, and can remain relatively stationary with the stator of the motor 1. . The bearing 32 between the sleeve 3 and the inner wall of the hollow body 11 of the motor shaft 1 may be plural, for example, two bearings respectively disposed at both ends of the sleeve, so that the relative rotation of the sleeve 3 and the motor shaft 12 can be significantly increased. Time stability.
同样的,电机轴12也可以是与定子相固定的固定轴。图3是本发明实施例一提供的另一种动力装置的结构示意图。如图3所示,该种实施方式中,动力装置的整体结构与前一实施方式类似,不同之处在于,本实施方式中,电机的电机轴12与电机1的定子14固定连接,而位于电机1外侧的转子壳13绕着电机轴12转动,并且转子壳13与桨毂21固定连接,用于带动桨毂21转动。用于穿设线缆41的中空腔体11设置在电机轴12的内部,且轴套3与电机1的电机轴12固定连接。Similarly, the motor shaft 12 can also be a fixed shaft that is fixed to the stator. FIG. 3 is a schematic structural diagram of another power device according to Embodiment 1 of the present invention. As shown in FIG. 3, in this embodiment, the overall structure of the power unit is similar to that of the previous embodiment, except that in the present embodiment, the motor shaft 12 of the motor is fixedly connected to the stator 14 of the motor 1, and is located at the same time. The rotor casing 13 outside the motor 1 rotates around the motor shaft 12, and the rotor casing 13 is fixedly coupled to the hub 21 for driving the hub 21 to rotate. The hollow cavity 11 for the cable 41 is disposed inside the motor shaft 12, and the sleeve 3 is fixedly coupled to the motor shaft 12 of the motor 1.
由于电机轴12和定子14固定连接,所以电机轴12是无法转动的,此时,轴套3可直接固定连接在电机轴12的中空腔体11内,由于轴套3和电机轴12均为静止状态,所以线缆41不会产生转动,也就不会发生缠 绕甚至断裂的现象。Since the motor shaft 12 and the stator 14 are fixedly connected, the motor shaft 12 cannot be rotated. At this time, the sleeve 3 can be directly fixedly connected to the hollow cavity 11 of the motor shaft 12, since both the sleeve 3 and the motor shaft 12 are Static state, so the cable 41 will not rotate, so it will not wrap Winding or even breaking phenomenon.
具体的,轴套3可以与电机1的电机轴12之间为过盈配合。此时,轴套3外侧和中空腔体11的内壁之间具有较大的摩擦力,难以实现旋转,同时也可防止轴套3从电机轴12的中空腔体11内掉落。Specifically, the sleeve 3 can have an interference fit with the motor shaft 12 of the motor 1. At this time, the outer side of the sleeve 3 and the inner wall of the hollow body 11 have a large frictional force, which makes it difficult to achieve rotation, and also prevents the sleeve 3 from falling out of the hollow cavity 11 of the motor shaft 12.
作为可选的方式,由于电机轴12本身无法转动,所以动力装置内可不再设置轴套。图4是本发明实施例一提供的又一种电机的结构示意图。如图4所示,此时,中空腔体11仍设置在电机轴12内部,电机1的转子壳13与桨毂21固定连接,用于带动桨毂21转动;电机轴12穿过桨毂21,且桨毂21绕电机轴12转动。该情况下,线缆41可直接穿过电机轴12的中空腔体11,因为电机轴12是静止不动的,所以穿过电机轴12的线缆41即使和中空腔体11的内壁接触,也不会产生转动和缠绕。As an alternative, since the motor shaft 12 itself cannot be rotated, the bushing can no longer be provided in the power unit. 4 is a schematic structural view of still another motor according to Embodiment 1 of the present invention. As shown in FIG. 4, at this time, the hollow cavity 11 is still disposed inside the motor shaft 12, and the rotor case 13 of the motor 1 is fixedly connected with the hub 21 for driving the hub 21 to rotate; the motor shaft 12 passes through the hub 21 And the hub 21 rotates about the motor shaft 12. In this case, the cable 41 can directly pass through the hollow cavity 11 of the motor shaft 12, because the motor shaft 12 is stationary, so that the cable 41 passing through the motor shaft 12 is in contact with the inner wall of the hollow body 11, There is also no rotation or entanglement.
在上述实施方式中,由于电机轴12穿过桨毂21的通孔,为了避免桨毂21与电机轴12相互触碰,并增加桨毂21旋转的稳定性,电机轴12与桨毂21之间还套设有轴承121。轴承121可以保持桨毂21与电机轴12之间的相对转动,并为桨毂21提供一定的支撑效果。In the above embodiment, since the motor shaft 12 passes through the through hole of the hub 21, in order to prevent the hub 21 from contacting the motor shaft 12 and increasing the stability of the rotation of the hub 21, the motor shaft 12 and the hub 21 are A bearing 121 is also provided between the sleeves. The bearing 121 can maintain the relative rotation between the hub 21 and the motor shaft 12 and provide a certain supporting effect for the hub 21.
作为另一种可选的实施方式,动力装置中的电机还可以为内转子电机。此时,电机1的外部为固定不动的定子,电机1中央的电机轴12可在转子的带动下旋转;电机轴12同时与桨毂21固定连接,可用于带动桨毂21转动。中空腔体11设置在电机轴12内部,轴套3穿过电机轴12,并且相对于电机轴12可转动。此时,轴套3同样可以与电机1内不可转动的部分,或者用于连接电,1的外部结构相固定,并相对于电机1整体保持静止,这样穿设在轴套3内的线缆41同样可以受到轴套的保护。为了实现轴套3和电机轴12之间的可转动连接,轴套3和电机轴12之间同样可以设置轴承等部件,其具体实现方式已在前述外转子电机的实施例中进行了详细说明,此处不再赘述。As another alternative embodiment, the motor in the power unit may also be an inner rotor motor. At this time, the external part of the motor 1 is a fixed stator, and the motor shaft 12 in the center of the motor 1 can be rotated by the rotor; the motor shaft 12 is simultaneously fixedly connected with the hub 21, and can be used to drive the hub 21 to rotate. The hollow cavity 11 is disposed inside the motor shaft 12, and the sleeve 3 passes through the motor shaft 12 and is rotatable relative to the motor shaft 12. At this time, the sleeve 3 can also be fixed to the non-rotatable portion of the motor 1, or the external structure for connecting the electric, 1 and remain stationary with respect to the motor 1, so that the cable is inserted through the sleeve 3. 41 can also be protected by the bushing. In order to realize the rotatable connection between the sleeve 3 and the motor shaft 12, bearings and the like can also be arranged between the sleeve 3 and the motor shaft 12. The specific implementation has been described in detail in the embodiment of the outer rotor motor described above. , will not repeat them here.
本实施例中,动力装置包括电机和螺旋桨,电机用于驱动螺旋桨旋转,电机具有两端开口的中空腔体,中空腔体沿电机的轴线方向从电机的顶部延伸至底部;螺旋桨包括桨毂和连接在桨毂上的桨叶,桨毂设有通孔;而桨毂与电机固定连接,并且桨毂的通孔与电机的中空腔体对应,形成用于供与天线电连接的线缆穿过的穿线孔。这样在动力装置中,螺旋桨和电机 的顶端位置可以设置天线,且天线的线缆可以从动力装置中穿过,从而使得动力装置上还可以设置用于收发信号的天线;天线设置的位置较为空旷,信号质量和信号强度均较好。In this embodiment, the power device includes a motor and a propeller, and the motor is used to drive the propeller to rotate. The motor has a hollow cavity that is open at both ends, and the hollow cavity extends from the top of the motor to the bottom along the axial direction of the motor; the propeller includes a hub and a blade connected to the hub, the hub is provided with a through hole; and the hub is fixedly coupled to the motor, and the through hole of the hub corresponds to the hollow cavity of the motor to form a cable for electrically connecting the antenna Threading holes. This way in the power unit, the propeller and the motor The top position of the antenna can be set, and the cable of the antenna can pass through the power device, so that the antenna for transmitting and receiving signals can be set on the power device; the position of the antenna is relatively empty, and the signal quality and signal strength are good. .
图5是本发明实施例二提供的一种动力套装的截面示意图。图6是本发明实施例二提供的一种动力套装的结构示意图。如图5和图6所示,本实施例提供的动力套装200包括前述实施例一中的动力装置100和天线装置4,其中,天线装置4包括天线42和接收机43,天线42位于动力装置100中的螺旋桨2的桨毂21顶端,天线42的线缆41穿过动力装置100中电机1的中空腔体11,并与接收机43电连接。其中,动力装置100的结构、功能和工作原理均已在前述实施例一中进行了详细说明,此处不再赘述。FIG. 5 is a schematic cross-sectional view of a power package according to Embodiment 2 of the present invention. FIG. 6 is a schematic structural diagram of a power package according to Embodiment 2 of the present invention. As shown in FIG. 5 and FIG. 6, the power package 200 provided in this embodiment includes the power device 100 and the antenna device 4 in the first embodiment, wherein the antenna device 4 includes an antenna 42 and a receiver 43, and the antenna 42 is located at the power device. At the top end of the hub 21 of the propeller 2 in 100, the cable 41 of the antenna 42 passes through the hollow cavity 11 of the motor 1 in the power unit 100, and is electrically connected to the receiver 43. The structure, function and working principle of the power device 100 have been described in detail in the foregoing first embodiment, and are not described herein again.
具体的,动力装置100中包括有电机1和螺旋桨2,电机1一般设置在无人飞行器的机臂等远离机体的部位,且螺旋桨2位于电机1的顶部,以带动无人飞行器进行飞行启停。天线42位于螺旋桨2的桨毂21顶端,由于其位置较高,且远离无人飞行器的机体等物体,所以收发信号时受障碍物的影响较小,能够实现较为可靠的通信和信号传输过程。天线42的线缆41可穿过动力装置100中由电机1的中空腔体11与桨毂21的通孔211所共同构成的穿线孔,并实现与接收机43之间的电连接。这样天线42即可保持与接收机43等设备的信号传输,实现无人飞行器与外部设备的通信和信号传输。一般的,天线42为图像传输天线或定位天线,且此时天线42通常为蘑菇状天线。Specifically, the power unit 100 includes a motor 1 and a propeller 2, and the motor 1 is generally disposed at a position away from the body of the arm of the UAV, and the propeller 2 is located at the top of the motor 1 to drive the unmanned aerial vehicle to start and stop. . The antenna 42 is located at the top end of the hub 21 of the propeller 2. Because of its high position and away from objects such as the body of the UAV, the signal is less affected by obstacles when transmitting and receiving signals, and a relatively reliable communication and signal transmission process can be realized. The cable 41 of the antenna 42 can pass through a threading hole formed by the hollow cavity 11 of the motor 1 and the through hole 211 of the hub 21 in the power unit 100, and realizes an electrical connection with the receiver 43. In this way, the antenna 42 can maintain signal transmission with devices such as the receiver 43, and realize communication and signal transmission between the UAV and the external device. In general, the antenna 42 is an image transmission antenna or a positioning antenna, and at this time, the antenna 42 is usually a mushroom antenna.
为了实现天线42与动力装置100之间的固定连接,天线装置4还包括锁紧件44;天线42设置在锁紧件44的顶端,锁紧件44的底端位于桨毂21内。锁紧件44上可以设置相应的固定或连接结构,例如连接螺纹或者卡扣等,以实现天线42和动力装置100之间的连接。一般的,由于锁紧件44连接在天线42与动力装置100之间,所以锁紧件44开设有用于使线缆41通过的通孔441,这样线缆41可以从锁紧件44内部穿过,走线较为整齐。In order to achieve a fixed connection between the antenna 42 and the power unit 100, the antenna assembly 4 further includes a locking member 44; the antenna 42 is disposed at the top end of the locking member 44, and the bottom end of the locking member 44 is located within the hub 21. A corresponding fixing or connecting structure, such as a connecting thread or a snap, may be provided on the locking member 44 to achieve a connection between the antenna 42 and the power unit 100. Generally, since the locking member 44 is connected between the antenna 42 and the power unit 100, the locking member 44 is provided with a through hole 441 for passing the cable 41, so that the cable 41 can pass through the inside of the locking member 44. The wiring is relatively neat.
可选的,锁紧件44的底端可与电机轴12或者穿过电机轴12的轴套3的顶端连接。轴套3一般与电机轴12,或者电机安装座5等结构保持固定 连接,所以锁紧件44的底端和轴套3连接时,会将天线42固定在电机轴12或者电机安装座5上,从而起到了对天线42的固定作用。Alternatively, the bottom end of the locking member 44 can be coupled to the motor shaft 12 or the top end of the sleeve 3 that passes through the motor shaft 12. The sleeve 3 is generally fixed to the motor shaft 12, or the motor mount 5, and the like. The connection is such that when the bottom end of the locking member 44 is connected to the sleeve 3, the antenna 42 is fixed to the motor shaft 12 or the motor mount 5, thereby fixing the antenna 42.
其中,锁紧件44的底端和电机轴12或者轴套3的顶端之间通常为螺纹连接。这样可以通过拧动锁紧件44的方式,轻松地将天线装置4从动力装置100上拆下或安装上去,实现了动力套装200的快速装卸。此外,当动力装置100中的电机1为外转子电机,因而未包括轴套时,此时可在电机1的固定不动的电机轴12的顶端设置螺纹孔等螺纹连接结构,并将锁紧件44直接和电机轴12螺接在一起。Therein, the bottom end of the locking member 44 and the motor shaft 12 or the top end of the sleeve 3 are typically threaded. Thus, the antenna device 4 can be easily detached or mounted from the power unit 100 by screwing the locking member 44, thereby realizing quick loading and unloading of the power package 200. In addition, when the motor 1 in the power unit 100 is an outer rotor motor and thus does not include a bushing, a threaded connection such as a threaded hole may be provided at the top end of the fixed motor shaft 12 of the motor 1 at this time, and the locking is performed. The piece 44 is screwed directly to the motor shaft 12.
作为一种较佳的实施方式,锁紧件44可以为锁紧螺母,锁紧螺母具有多边形外立面,锁紧螺母的顶端用于设置天线42。锁紧螺母44具有螺纹孔,可以方便地与天线42或者动力装置100实现螺纹连接。同时,锁紧螺母44的外立面可以为六边形或者八边形等多边形,这样使用者或者维护人员能够利用扳手或者其它工具快速拧动锁紧螺母,实现天线的快速拆装。As a preferred embodiment, the locking member 44 can be a lock nut having a polygonal outer surface, and the top end of the lock nut is used to set the antenna 42. The lock nut 44 has a threaded bore that can be conveniently threadedly coupled to the antenna 42 or the power unit 100. At the same time, the outer surface of the lock nut 44 can be a polygon such as a hexagon or an octagon, so that the user or the maintenance personnel can quickly turn the lock nut by using a wrench or other tools to realize quick disassembly and assembly of the antenna.
此外,与天线42电连接的接收机43也可以位于不同的位置。图7是本发明实施例二提供的另一种动力套装的截面示意图。图8是本发明实施例二提供的另一种动力套装的结构示意图。如图7和图8所示,动力套装300中,天线装置4的接收机43可固定在天线42的底部,并和天线42集成为一体。此时,通过电机1的中空腔体11的线缆41可用于实现接收机43与无人飞行器的其它设备,例如是控制器之间的信号传输。Additionally, the receiver 43 that is electrically coupled to the antenna 42 can also be located at different locations. FIG. 7 is a schematic cross-sectional view of another power package according to Embodiment 2 of the present invention. FIG. 8 is a schematic structural diagram of another power package according to Embodiment 2 of the present invention. As shown in FIGS. 7 and 8, in the power pack 300, the receiver 43 of the antenna device 4 can be fixed to the bottom of the antenna 42 and integrated with the antenna 42. At this time, the cable 41 passing through the hollow cavity 11 of the motor 1 can be used to implement signal transmission between the receiver 43 and other devices of the UAV, such as the controller.
本实施例中,动力套装包括动力装置和天线装置,其中,天线装置包括天线和接收机,天线位于动力装置中的螺旋桨的桨毂顶端,天线的线缆穿过动力装置中电机的中空腔体,并与接收机电连接。这样天线装置中的天线可以设置在动力装置的顶端位置,天线所在的位置较为空旷,周边的遮挡物较少,因而可以保证天线具有较好的信号强度。In this embodiment, the power package includes a power device and an antenna device, wherein the antenna device includes an antenna and a receiver, the antenna is located at a top end of the propeller hub of the power device, and the cable of the antenna passes through the hollow cavity of the motor in the power device And electrically connected to the receiver. In this way, the antenna in the antenna device can be disposed at the top position of the power device, the position of the antenna is relatively empty, and the surrounding obstruction is less, so that the antenna can have better signal strength.
图9是本发明实施例三提供的一种无人飞行器的结构示意图。如图9所示,本实施例中,无人飞行器500包括机架401和前述实施例二中所述的动力套装400,机架401上设置有电机安装座5,动力套装400中的电机1设置在电机安装座5上,且动力套装400中的天线装置4和螺旋桨2均位于电机1的远离电机安装座5的一侧。 FIG. 9 is a schematic structural diagram of an unmanned aerial vehicle according to Embodiment 3 of the present invention. As shown in FIG. 9, in this embodiment, the unmanned aerial vehicle 500 includes a frame 401 and a power package 400 described in the foregoing second embodiment. The frame 401 is provided with a motor mount 5, and the motor 1 in the power pack 400 It is disposed on the motor mount 5, and the antenna device 4 and the propeller 2 in the power pack 400 are both located on the side of the motor 1 remote from the motor mount 5.
具体的,无人飞行器500的机架401一般可包括有机臂和起落架,机臂从无人飞行器的机体伸出,机臂上设置有用于安置电机1的电机安装座5,动力套装400中的电机1固定设置在电机安装座5上,电机1驱动螺旋桨2旋转时,即可带动整个无人飞行器500飞行。而天线装置4位于电机1和螺旋桨2的顶端,设置高度较高,且远离无人飞行器500的其它部位,因而信号强度较好,信号传输的可靠性也较高。Specifically, the rack 401 of the UAV 500 may generally include an organic arm and a landing gear, and the arm extends from the body of the UAV. The arm is provided with a motor mount 5 for arranging the motor 1, and the power kit 400 The motor 1 is fixedly disposed on the motor mount 5, and when the motor 1 drives the propeller 2 to rotate, the entire unmanned aerial vehicle 500 can be driven to fly. The antenna device 4 is located at the top end of the motor 1 and the propeller 2, and has a high setting height and is away from other parts of the UAV 500, so that the signal strength is good and the reliability of signal transmission is also high.
其中,电机1通常位于无人飞行器500的机体外侧。这样电机1距离无人飞行器500的其它部位较远,天线装置4周围的空间较为空旷,信号传输效果较佳。Among them, the motor 1 is usually located outside the body of the UAV 500. Thus, the motor 1 is far away from other parts of the UAV 500, and the space around the antenna device 4 is relatively empty, and the signal transmission effect is better.
一般的,一架无人飞行器上动力套装的数量可能为一个或多个。图10是本发明实施例三提供的无人飞行器的天线覆盖范围示意图。如图10所示,当动力套装400的数量为多个时,动力套装400中的天线可以均为波束较窄的定向天线,且各天线分别朝向水平周向的不同方向,以使所有天线在水平方向上呈360°全向覆盖。例如,可以设置四个动力套装,并分别设置在无人飞行器500的四个机臂上,每个动力套装上的天线均朝向无人飞行器500水平外侧的不同方向,且每个天线覆盖至少90°的范围,这样四个动力套装即可共同完成水平全向覆盖。由于定向天线的发射距离较大,所以可以实现较大的天线覆盖范围。In general, the number of power packs on an unmanned aerial vehicle may be one or more. FIG. 10 is a schematic diagram of an antenna coverage range of an unmanned aerial vehicle according to Embodiment 3 of the present invention. As shown in FIG. 10, when the number of the power package 400 is plural, the antennas in the power package 400 may be directional antennas with narrow beams, and the antennas are respectively oriented in different directions in the horizontal circumferential direction, so that all the antennas are in 360° omnidirectional coverage in the horizontal direction. For example, four power packs may be provided and respectively disposed on the four arms of the UAV 500, the antennas on each power pack are oriented in different directions on the horizontal outer side of the UAV 500, and each antenna covers at least 90 The range of °, so that the four power sets can work together to achieve horizontal omnidirectional coverage. Since the directional antenna has a large transmission distance, a large antenna coverage can be achieved.
本实施例中,无人飞行器包括机架和动力套装,机架上设置有电机安装座,动力套装中的电机设置在电机安装座上,且动力套装中的天线装置和螺旋桨均位于电机的远离电机安装座的一侧。这样天线装置位于电机和螺旋桨的顶端,设置高度较高,且远离无人飞行器的其它部位,因而信号强度较好,信号传输的可靠性也较高,能够实现无人飞行器的可靠通信。In this embodiment, the unmanned aerial vehicle includes a frame and a power package, and the motor mount is disposed on the frame, and the motor in the power package is disposed on the motor mount, and the antenna device and the propeller in the power package are located far away from the motor. One side of the motor mount. In this way, the antenna device is located at the top of the motor and the propeller, and the installation height is high, and away from other parts of the UAV, so the signal strength is good, the reliability of signal transmission is also high, and the reliable communication of the UAV can be realized.
最后应说明的是:以上各实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述各实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。 Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims (60)

  1. 一种动力装置,其特征在于,包括电机和螺旋桨,所述电机用于驱动所述螺旋桨旋转,所述电机具有两端开口的中空腔体,所述中空腔体沿所述电机的轴线方向从所述电机的顶部延伸至底部;A power device, comprising: a motor for driving rotation of the propeller, and a propeller having a hollow cavity at both ends, the hollow cavity being oriented along an axis of the motor The top of the motor extends to the bottom;
    所述螺旋桨包括桨毂和连接在所述桨毂上的桨叶,所述桨毂设有通孔;The propeller includes a hub and a blade coupled to the hub, the hub being provided with a through hole;
    其中,所述桨毂与所述电机固定连接,并且所述桨毂的所述通孔与所述电机的中空腔体对应,形成用于供与天线电连接的线缆穿过的穿线孔。Wherein the hub is fixedly coupled to the motor, and the through hole of the hub corresponds to a hollow cavity of the motor to form a threading hole through which a cable electrically connected to the antenna passes.
  2. 根据权利要求1所述的动力装置,其特征在于,所述线缆包括如下至少一种:用于为所述天线供电的电源线,用于传送信号的馈线。The power unit according to claim 1, wherein said cable comprises at least one of: a power supply line for supplying power to said antenna, and a feed line for transmitting signals.
  3. 根据权利要求1或2所述的动力装置,其特征在于,还包括轴套,所述轴套穿设在所述电机的中空腔体内,所述轴套的内径大于所述线缆的外径。The power unit according to claim 1 or 2, further comprising a sleeve, the sleeve being threaded through the hollow cavity of the motor, the inner diameter of the sleeve being larger than the outer diameter of the cable .
  4. 根据权利要求3所述的动力装置,其特征在于,所述轴套的底端设置有用于与电机安装座或电机底座保持相对固定的限位部。The power unit according to claim 3, wherein the bottom end of the sleeve is provided with a limiting portion for maintaining a relatively fixed position with the motor mount or the motor base.
  5. 根据权利要求4所述的动力装置,其特征在于,所述限位部为螺纹紧固部,所述电机安装座或电机底座设有与所述螺纹紧固部相螺合的螺孔。The power unit according to claim 4, wherein the limiting portion is a screw fastening portion, and the motor mount or the motor base is provided with a screw hole that is screwed to the screw fastening portion.
  6. 根据权利要求4所述的动力装置,其特征在于,所述轴套的其中一个开口端突出于所述桨毂之外,另外一个开口端突出于所述中空腔体靠近所述电机的底部的开口。The power unit according to claim 4, wherein one of the open ends of the sleeve projects beyond the hub, and the other open end projects from the bottom of the hollow body near the bottom of the motor. Opening.
  7. 根据权利要求3-6任一项所述的动力装置,其特征在于,所述电机为外转子电机,所述电机的定子环绕所述中空腔体,所述桨毂跟随所述电机的转子壳一起转动。A power unit according to any one of claims 3-6, wherein said motor is an outer rotor motor, a stator of said motor surrounds said hollow cavity, said hub follows a rotor casing of said motor Turn together.
  8. 根据权利要求7所述的动力装置,其特征在于,所述电机包括有电机轴,所述桨毂套设在所述电机轴的顶端外侧,并且与所述电机轴固定连接,用于跟随所述电机轴的转动而旋转;所述中空腔体设置在所述电机轴内部,所述轴套穿过所述电机轴,并且相对于所述电机轴可转动。The power unit according to claim 7, wherein said motor comprises a motor shaft, said hub being sleeved outside said top end of said motor shaft, and fixedly coupled to said motor shaft for following Rotating the rotation of the motor shaft; the hollow cavity is disposed inside the motor shaft, the sleeve passes through the motor shaft and is rotatable relative to the motor shaft.
  9. 根据权利要求8所述的动力装置,其特征在于,所述轴套和所述中空腔体的内壁之间通过轴承连接。 The power unit according to claim 8, wherein said sleeve and said inner wall of said hollow body are connected by bearings.
  10. 根据权利要求7所述的动力装置,其特征在于,所述电机包括有电机轴,所述电机轴与所述电机的定子固定连接;所述电机的转子壳绕所述电机轴转动,并且与所述桨毂固定连接,用于带动所述桨毂转动;所述中空腔体设置在所述电机轴内部,所述轴套与所述电机的电机轴固定连接。The power unit according to claim 7, wherein said motor comprises a motor shaft, said motor shaft being fixedly coupled to a stator of said motor; said rotor housing of said motor rotating about said motor shaft, and The hub is fixedly coupled for driving the hub to rotate; the hollow cavity is disposed inside the motor shaft, and the sleeve is fixedly connected to a motor shaft of the motor.
  11. 根据权利要求10所述的动力装置,其特征在于,所述轴套与所述电机轴过盈配合。The power unit of claim 10 wherein said sleeve is in interference fit with said motor shaft.
  12. 根据权利要求3所述的动力装置,其特征在于,所述电机为内转子电机,所述电机的电机轴与所述桨毂固定连接,用于带动所述桨毂转动;所述中空腔体设置在所述电机轴内部,所述轴套穿过所述电机轴,并且相对于所述电机轴可转动。The power unit according to claim 3, wherein the motor is an inner rotor motor, and a motor shaft of the motor is fixedly coupled to the hub for driving the hub to rotate; the hollow body Provided inside the motor shaft, the sleeve passes through the motor shaft and is rotatable relative to the motor shaft.
  13. 根据权利要求1或2所述的动力装置,其特征在于,所述电机为外转子电机,所述电机包括电机轴,所述中空腔体设置在所述电机轴内部,所述电机的转子壳与所述桨毂固定连接,用于带动所述桨毂转动;所述电机轴穿过所述桨毂,且所述桨毂绕所述电机轴转动。A power unit according to claim 1 or 2, wherein said motor is an outer rotor motor, said motor includes a motor shaft, said hollow cavity is disposed inside said motor shaft, and said rotor casing of said motor Fixedly coupled to the hub for driving the hub to rotate; the motor shaft passes through the hub, and the hub rotates about the motor shaft.
  14. 根据权利要求13所述的动力装置,其特征在于,所述电机轴与所述桨毂之间套设有轴承。The power unit according to claim 13, wherein a bearing is disposed between the motor shaft and the hub.
  15. 一种动力套装,包括动力装置和天线装置,所述天线装置包括天线和接收机,所述天线位于所述动力装置中的螺旋桨的桨毂顶端,所述天线的线缆穿过所述动力装置中的中空腔体,并与所述接收机电连接;A power kit includes a power unit and an antenna device, the antenna device including an antenna and a receiver, the antenna being located at a top end of a propeller hub of the power unit, the cable of the antenna passing through the power unit a hollow cavity in the middle and electrically connected to the receiver;
    其中,所述动力装置,包括电机和螺旋桨,所述电机用于驱动所述螺旋桨旋转,所述电机具有两端开口的中空腔体,所述中空腔体沿所述电机的轴线方向从所述电机的顶部延伸至底部;Wherein the power device includes a motor and a propeller, the motor is configured to drive the propeller to rotate, the motor has a hollow cavity at both ends, the hollow cavity body is in the axial direction of the motor from the The top of the motor extends to the bottom;
    所述螺旋桨包括桨毂和连接在所述桨毂上的桨叶,所述桨毂设有通孔;The propeller includes a hub and a blade coupled to the hub, the hub being provided with a through hole;
    其中,所述桨毂与所述电机固定连接,并且所述桨毂的所述通孔与所述电机的中空腔体对应,形成用于供与天线电连接的线缆穿过的穿线孔。Wherein the hub is fixedly coupled to the motor, and the through hole of the hub corresponds to a hollow cavity of the motor to form a threading hole through which a cable electrically connected to the antenna passes.
  16. 根据权利要求15所述的动力套装,其特征在于,所述线缆包括如下至少一种:用于为所述天线供电的电源线,用于传送信号的馈线。The power kit according to claim 15, wherein the cable comprises at least one of: a power line for powering the antenna, and a feeder for transmitting a signal.
  17. 根据权利要求15或16所述的动力套装,其特征在于,还包括轴 套,所述轴套穿设在所述电机的中空腔体内,所述轴套的内径大于所述线缆的外径。A power kit according to claim 15 or 16, further comprising a shaft The sleeve is threaded through the hollow cavity of the motor, and the inner diameter of the sleeve is larger than the outer diameter of the cable.
  18. 根据权利要求17所述的动力套装,其特征在于,所述轴套的底端设置有用于与电机安装座或电机底座保持相对固定的限位部。The power kit according to claim 17, wherein the bottom end of the sleeve is provided with a limiting portion for maintaining a relatively fixed position with the motor mount or the motor base.
  19. 根据权利要求18所述的动力套装,其特征在于,所述限位部为螺纹紧固部,所述电机安装座或电机底座设有与所述螺纹紧固部相螺合的螺孔。The power kit according to claim 18, wherein the limiting portion is a screw fastening portion, and the motor mount or the motor base is provided with a screw hole that is screwed to the screw fastening portion.
  20. 根据权利要求18所述的动力套装,其特征在于,所述轴套的其中一个开口端突出于所述桨毂之外,另外一个开口端突出于所述中空腔体靠近所述电机的底部的开口。The power kit according to claim 18, wherein one of the open ends of the sleeve projects beyond the hub, and the other open end projects from the bottom of the hollow body near the bottom of the motor. Opening.
  21. 根据权利要求17-20任一项所述的动力套装,其特征在于,所述电机为外转子电机,所述电机的定子环绕所述中空腔体,所述桨毂跟随所述电机的转子壳一起转动。A power kit according to any one of claims 17 to 20, wherein the motor is an outer rotor motor, a stator of the motor surrounds the hollow cavity, and the hub follows a rotor case of the motor Turn together.
  22. 根据权利要求21所述的动力套装,其特征在于,所述电机包括有电机轴,所述桨毂套设在所述电机轴的顶端外侧,并且与所述电机轴固定连接,用于跟随所述电机轴的转动而旋转;所述中空腔体设置在所述电机轴内部,所述轴套穿过所述电机轴,并且相对于所述电机轴可转动。The power kit according to claim 21, wherein said motor comprises a motor shaft, said hub being sleeved outside said top end of said motor shaft, and fixedly coupled to said motor shaft for following Rotating the rotation of the motor shaft; the hollow cavity is disposed inside the motor shaft, the sleeve passes through the motor shaft and is rotatable relative to the motor shaft.
  23. 根据权利要求22所述的动力套装,其特征在于,所述轴套和所述中空腔体的内壁之间通过轴承连接。The power kit according to claim 22, wherein the sleeve and the inner wall of the hollow body are connected by bearings.
  24. 根据权利要求21所述的动力套装,其特征在于,所述电机包括有电机轴,所述电机轴与所述电机的定子固定连接;所述电机的转子壳绕所述电机轴转动,并且与所述桨毂固定连接,用于带动所述桨毂转动;所述中空腔体设置在所述电机轴内部,所述轴套与所述电机的电机轴固定连接。The power kit according to claim 21, wherein said motor comprises a motor shaft, said motor shaft being fixedly coupled to a stator of said motor; said rotor housing of said motor rotating about said motor shaft, and The hub is fixedly coupled for driving the hub to rotate; the hollow cavity is disposed inside the motor shaft, and the sleeve is fixedly connected to a motor shaft of the motor.
  25. 根据权利要求24所述的动力套装,其特征在于,所述轴套与所述电机轴过盈配合。The power kit of claim 24 wherein said sleeve is in interference fit with said motor shaft.
  26. 根据权利要求17所述的动力套装,其特征在于,所述电机为内转子电机,所述电机的电机轴与所述桨毂固定连接,用于带动所述桨毂转动;所述中空腔体设置在所述电机轴内部,所述轴套穿过所述电机轴,并且相对于所述电机轴可转动。 The power kit according to claim 17, wherein the motor is an inner rotor motor, and a motor shaft of the motor is fixedly coupled to the hub for driving the hub to rotate; the hollow body Provided inside the motor shaft, the sleeve passes through the motor shaft and is rotatable relative to the motor shaft.
  27. 根据权利要求15或16所述的动力套装,其特征在于,所述电机为外转子电机,所述电机包括电机轴,所述中空腔体设置在所述电机轴内部,所述电机的转子壳与所述桨毂固定连接,用于带动所述桨毂转动;所述电机轴穿过所述桨毂,且所述桨毂绕所述电机轴转动。The power kit according to claim 15 or 16, wherein the motor is an outer rotor motor, the motor includes a motor shaft, the hollow cavity is disposed inside the motor shaft, and the rotor shell of the motor Fixedly coupled to the hub for driving the hub to rotate; the motor shaft passes through the hub, and the hub rotates about the motor shaft.
  28. 根据权利要求27所述的动力套装,其特征在于,所述电机轴与所述桨毂之间套设有轴承。。The power kit according to claim 27, wherein a bearing is interposed between the motor shaft and the hub. .
  29. 根据权利要求15或16所述的动力套装,其特征在于,所述天线装置还包括锁紧件;所述天线设置在所述锁紧件的顶端,所述锁紧件的底端位于所述桨毂内。The power kit according to claim 15 or 16, wherein the antenna device further comprises a locking member; the antenna is disposed at a top end of the locking member, and a bottom end of the locking member is located at the Inside the hub.
  30. 根据权利要求29所述的动力套装,其特征在于,所述锁紧件的底端与电机轴或穿过电机轴的轴套的顶端连接。A power kit according to claim 29, wherein the bottom end of the locking member is coupled to the motor shaft or the top end of the sleeve passing through the motor shaft.
  31. 根据权利要求30所述的动力套装,其特征在于,所述锁紧件的底端和所述电机轴或穿过所述电机轴的所述轴套的顶端之间为螺纹连接。A power kit according to claim 30, wherein a bottom end of said locking member is threadedly coupled to said motor shaft or a top end of said sleeve passing through said motor shaft.
  32. 根据权利要求29所述的动力套装,其特征在于,所述锁紧件开设有用于使线缆通过的通孔。The power kit according to claim 29, wherein the locking member is provided with a through hole for passing the cable.
  33. 根据权利要求29所述的动力套装,其特征在于,所述锁紧件为锁紧螺母,所述锁紧螺母具有多边形的外立面,所述锁紧螺母的顶端用于设置所述天线。A power kit according to claim 29, wherein said locking member is a lock nut, said lock nut having a polygonal outer surface, and a top end of said lock nut is for setting said antenna.
  34. 根据权利要求15或16所述的动力套装,其特征在于,所述接收机固定在所述天线的底部,并和所述天线集成为一体。A power kit according to claim 15 or 16, wherein said receiver is fixed to the bottom of said antenna and integrated with said antenna.
  35. 根据权利要求15或16所述的动力套装,其特征在于,所述天线为图像传输天线或定位天线。A power kit according to claim 15 or 16, wherein the antenna is an image transmission antenna or a positioning antenna.
  36. 根据权利要求15或16所述的动力套装,其特征在于,所述天线的形状为蘑菇状。A power kit according to claim 15 or 16, wherein the antenna has a mushroom shape.
  37. 一种无人飞行器,其特征在于,包括机架和动力套装,所述机架上设置有电机安装座,所述动力套装中的电机设置在所述电机安装座上,且所述动力套装中的天线装置和螺旋桨均位于所述电机的远离所述电机安装座的一侧;An unmanned aerial vehicle, comprising: a frame and a power kit, the frame is provided with a motor mount, a motor in the power kit is disposed on the motor mount, and the power kit is The antenna device and the propeller are both located on a side of the motor remote from the motor mount;
    所述动力套装包括动力装置和天线装置,所述天线装置包括天线和接收机,所述天线位于所述动力装置中的螺旋桨的桨毂顶端,所述天线的线 缆穿过所述动力装置中的中空腔体,并与所述接收机电连接;The power kit includes a power unit including an antenna and a receiver, the antenna being located at a top end of a propeller hub of the power unit, and a line of the antenna a cable passing through the hollow cavity in the power unit and electrically connected to the receiver;
    其中,所述动力装置,包括电机和螺旋桨,所述电机用于驱动所述螺旋桨旋转,所述电机具有两端开口的中空腔体,所述中空腔体沿所述电机的轴线方向从所述电机的顶部延伸至底部;Wherein the power device includes a motor and a propeller, the motor is configured to drive the propeller to rotate, the motor has a hollow cavity at both ends, the hollow cavity body is in the axial direction of the motor from the The top of the motor extends to the bottom;
    所述螺旋桨包括桨毂和连接在所述桨毂上的桨叶,所述桨毂设有通孔;The propeller includes a hub and a blade coupled to the hub, the hub being provided with a through hole;
    其中,所述桨毂与所述电机固定连接,并且所述桨毂的所述通孔与所述电机的中空腔体对应,形成用于供与天线电连接的线缆穿过的穿线孔。Wherein the hub is fixedly coupled to the motor, and the through hole of the hub corresponds to a hollow cavity of the motor to form a threading hole through which a cable electrically connected to the antenna passes.
  38. 根据权利要求37所述的无人飞行器,其特征在于,所述线缆包括如下至少一种:用于为所述天线供电的电源线,用于传送信号的馈线。The UAV according to claim 37, wherein said cable comprises at least one of: a power supply line for powering said antenna, and a feed line for transmitting signals.
  39. 根据权利要求37或38所述的无人飞行器,其特征在于,还包括轴套,所述轴套穿设在所述电机的中空腔体内,所述轴套的内径大于所述线缆的外径。The UAV according to claim 37 or claim 38, further comprising a sleeve, the sleeve being threaded through the hollow cavity of the motor, the inner diameter of the sleeve being larger than the outer diameter of the cable path.
  40. 根据权利要求39所述的无人飞行器,其特征在于,所述轴套的底端设置有用于与电机安装座或电机底座保持相对固定的限位部。The UAV according to claim 39, wherein the bottom end of the sleeve is provided with a limiting portion for maintaining a relatively fixed position with the motor mount or the motor base.
  41. 根据权利要求40所述的无人飞行器,其特征在于,所述限位部为螺纹紧固部,所述电机安装座或电机底座设有与所述螺纹紧固部相螺合的螺孔。The UAV according to claim 40, wherein the limiting portion is a threaded fastening portion, and the motor mount or the motor base is provided with a screw hole that is screwed to the screw fastening portion.
  42. 根据权利要求39所述的无人飞行器,其特征在于,所述轴套的其中一个开口端突出于所述桨毂之外,另外一个开口端突出于所述中空腔体靠近所述电机的底部的开口。The UAV according to claim 39, wherein one of the open ends of the sleeve projects beyond the hub, and the other open end projects from the bottom of the hollow body near the bottom of the motor The opening.
  43. 根据权利要求39-42任一项所述的无人飞行器,其特征在于,所述电机为外转子电机,所述电机的定子环绕所述中空腔体,所述桨毂跟随所述电机的转子壳一起转动。An unmanned aerial vehicle according to any one of claims 39 to 42, wherein said motor is an outer rotor motor, a stator of said motor surrounds said hollow cavity, said hub follows a rotor of said motor The shell rotates together.
  44. 根据权利要求43所述的无人飞行器,其特征在于,所述电机包括有电机轴,所述桨毂套设在所述电机轴的顶端外侧,并且与所述电机轴固定连接,用于跟随所述电机轴的转动而旋转;所述中空腔体设置在所述电机轴内部,所述轴套穿过所述电机轴,并且相对于所述电机轴可转动。The UAV according to claim 43, wherein said motor comprises a motor shaft, said hub being sleeved outside said top end of said motor shaft and fixedly coupled to said motor shaft for following The motor shaft rotates while rotating; the hollow cavity is disposed inside the motor shaft, the sleeve passes through the motor shaft, and is rotatable relative to the motor shaft.
  45. 根据权利要求44所述的无人飞行器,其特征在于,所述轴套和所述中空腔体的内壁之间通过轴承连接。 The UAV according to claim 44, wherein the sleeve and the inner wall of the hollow body are connected by bearings.
  46. 根据权利要求43所述的无人飞行器,其特征在于,所述电机包括有电机轴,所述电机轴与所述电机的定子固定连接;所述电机的转子壳绕所述电机轴转动,并且与所述桨毂固定连接,用于带动所述桨毂转动;所述中空腔体设置在所述电机轴内部,所述轴套与所述电机的电机轴固定连接。The UAV according to claim 43, wherein said motor comprises a motor shaft, said motor shaft being fixedly coupled to a stator of said motor; said rotor housing of said motor rotating about said motor shaft, and A fixed connection with the hub for driving the hub; the hollow cavity is disposed inside the motor shaft, and the sleeve is fixedly coupled to a motor shaft of the motor.
  47. 根据权利要求46所述的无人飞行器,其特征在于,所述轴套与所述电机轴过盈配合。The UAV according to claim 46, wherein said sleeve is in interference fit with said motor shaft.
  48. 根据权利要求43所述的无人飞行器,其特征在于,所述电机为内转子电机,所述电机的电机轴与所述桨毂固定连接,用于带动所述桨毂转动;所述中空腔体设置在所述电机轴内部,所述轴套穿过所述电机轴,并且相对于所述电机轴可转动。The UAV according to claim 43, wherein the motor is an inner rotor motor, and a motor shaft of the motor is fixedly coupled to the hub for driving the hub to rotate; The body is disposed inside the motor shaft, the sleeve passes through the motor shaft and is rotatable relative to the motor shaft.
  49. 根据权利要求37或38所述的无人飞行器,其特征在于,所述电机为外转子电机,所述电机包括电机轴,所述中空腔体设置在所述电机轴内部,所述电机的转子壳与所述桨毂固定连接,用于带动所述桨毂转动;所述电机轴穿过所述桨毂,且所述桨毂绕所述电机轴转动。An unmanned aerial vehicle according to claim 37 or claim 38, wherein said motor is an outer rotor motor, said motor comprises a motor shaft, said hollow cavity being disposed inside said motor shaft, said motor rotor A housing is fixedly coupled to the hub for driving the hub to rotate; the motor shaft passes through the hub, and the hub rotates about the motor shaft.
  50. 根据权利要求49所述的无人飞行器,其特征在于,所述电机轴与所述桨毂之间套设有轴承。。The UAV according to claim 49, wherein a bearing is disposed between the motor shaft and the hub. .
  51. 根据权利要求37或38所述的无人飞行器,其特征在于,所述天线装置还包括锁紧件;所述天线设置在所述锁紧件的顶端,所述锁紧件的底端位于所述桨毂内。The UAV according to claim 37 or 38, wherein the antenna device further comprises a locking member; the antenna is disposed at a top end of the locking member, and the bottom end of the locking member is located at Inside the hub.
  52. 根据权利要求51所述的无人飞行器,其特征在于,所述锁紧件的底端与电机轴或穿过电机轴的轴套的顶端连接。The UAV according to claim 51, wherein the bottom end of the locking member is coupled to the motor shaft or the top end of the sleeve passing through the motor shaft.
  53. 根据权利要求52所述的无人飞行器,其特征在于,所述锁紧件的底端和所述电机轴或穿过所述电机轴的所述轴套的顶端之间为螺纹连接。The UAV according to claim 52, wherein a bottom end of said locking member is threadedly coupled to said motor shaft or a top end of said sleeve passing through said motor shaft.
  54. 根据权利要求51所述的无人飞行器,其特征在于,所述锁紧件开设有用于使线缆通过的通孔。The UAV according to claim 51, wherein the locking member is provided with a through hole for passing the cable.
  55. 根据权利要求51所述的无人飞行器,其特征在于,所述锁紧件为锁紧螺母,所述锁紧螺母具有多边形的外立面,所述锁紧螺母的顶端用于设置所述天线。 The UAV according to claim 51, wherein the locking member is a lock nut, the lock nut has a polygonal outer surface, and a top end of the lock nut is used to set the antenna .
  56. 根据权利要求37或38所述的无人飞行器,其特征在于,所述接收机固定在所述天线的底部,并和所述天线集成为一体。An unmanned aerial vehicle according to claim 37 or claim 38, wherein said receiver is fixed to the bottom of said antenna and integrated with said antenna.
  57. 根据权利要求37或38所述的无人飞行器,其特征在于,所述天线为图像传输天线或定位天线。The UAV according to claim 37 or 38, wherein the antenna is an image transmission antenna or a positioning antenna.
  58. 根据权利要求37或38所述的无人飞行器,其特征在于,所述天线的形状为蘑菇状。。The UAV according to claim 37 or 38, wherein the antenna has a mushroom shape. .
  59. 根据权利要求37或38所述的无人飞行器,其特征在于,所述电机位于所述无人飞行器的机体外侧。An unmanned aerial vehicle according to claim 37 or 38, wherein said motor is located outside the body of said unmanned aerial vehicle.
  60. 根据权利要求37或38所述的无人飞行器,其特征在于,所述动力套装的数量为多个,所述动力套装中的天线均为定向天线,且各所述天线分别朝向水平周向的不同方向,以使所有所述天线呈水平全向覆盖。 The unmanned aerial vehicle according to claim 37 or claim 38, wherein the number of the power kits is plural, the antennas in the power kit are directional antennas, and each of the antennas faces a horizontal circumferential direction. Different directions to make all of the antennas horizontally omnidirectional.
PCT/CN2016/113431 2016-12-30 2016-12-30 Power device, power kit, and unmanned aerial vehicle WO2018120001A1 (en)

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