• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a propellant unit (12) comprising a propeller (20) comprising a hub (24) and a plurality of blades (26), an electric motor (28) having a motor support, the motor having a fixed part comprising a stator (32) connected to the motor support, and a movable portion comprising a rotor (34) movable about an axis of rotation for driving the propeller, and a motor control device (38). At least one blade (26) of the helix comprises a plurality of light-emitting diodes (42). The propeller comprises a control device (44) of the diodes. The engine comprises a hollow central shaft (36). The engine support comprises a communication device (54) able to communicate with a communication device (56) integrated in the helix, the communication devices being positioned on either side of the hollow shaft, and the device for motor control (38) is adapted to communicate with the communication device (54) of the engine.
    公开号:FR3047346A1
    申请号:FR1650839
    申请日:2016-02-03
    公开日:2017-08-04
    发明作者:Alexis Foiret；Yoni Benatar
    申请人:Parrot Drones SAS；
    IPC主号:
    专利说明:

    The invention relates to a propulsion unit, in particular for a drone, and a drone equipped with such a propulsion unit.
    These UAVs are notably the UAV-type rotary wing drones or flying wing UAVs which are provided with one or more propulsion units each with a propeller driven by a clean engine. The AR.Drone 2.0 or the Bebop Drone of Parrot SA, Paris, France are quadrocopter type rotary wing drones and the SenseFly SA eBee, Switzerland is a flying wing type drone. They are equipped with a series of sensors (accelerometers, 3-axis gyrometers, altimeters) and can include at least one camera.
    The rotary wing drones are provided with several propulsion units driven by respective engines able to be controlled in a differentiated manner to control the drone attitude and speed.
    The WO 2011/058257A1 precisely describes the structure of the propulsion units of a rotary wing drone, each of which comprises a propeller driven by an electric motor via a system for reducing the rotation speed, generally very high, of this engine.
    In addition, document EP 2 873 614 discloses a drone propulsion unit in which the propulsion unit is of the direct drive type and the rotor of the motor is rotatably connected to the hub of the propeller.
    These configurations have good performance but do not allow an evolution of the capabilities of the power unit, especially they do not allow to integrate new features.
    The object of the invention is to offer a new functionality to the engine block in particular to convey information to the user, for example to the pilot of the drone.
    To achieve the above-mentioned objects, the invention proposes a helix intended to be assembled on an electric motor of the rotary brushless synchronous motor type having a hollow central shaft, comprising a hub and a plurality of blades.
    In a characteristic manner of the invention, at least one blade of the helix comprises a plurality of light-emitting diodes, the helix further comprises a device for controlling the light-emitting diodes, a communication device positioned on the hub of the helix of in order to communicate with a communication device of an electric motor via the hollow shaft of said motor, the diode control device being able to communicate with the propeller communication device in order to transmit and / or receive commands .
    According to various advantageous subsidiary characteristics: the communication device is a transmitting and receiving device. the communication device is an infrared transmitter / receiver device. the helix comprises a magnetic field sensor. the plurality of light-emitting diodes is positioned along the length of the helix. The invention also proposes an electric motor of the rotary brushless synchronous motor type, having a motor support, a fixed part comprising a stator connected to the motor support, a movable part comprising a rotor movable around a central axis of rotation of the motor, and an engine control device.
    In a characteristic manner of the invention, the engine comprises a hollow central shaft, the engine support comprises a communication device able to communicate with a communication device integrated in a helix assembled on the engine, the communication device being positioned in a position side of the hollow shaft of the engine, and the engine control device is adapted to communicate with the engine communication device to transmit and / or receive commands.
    According to various advantageous subsidiary characteristics: the electric motor comprises at least one inductor arranged on the fixed part of the motor and at least one inductor arranged on the mobile part of the motor to receive power, the communication device is a transmitter and receiver device. the communication device is an infrared transmitter / receiver device. the electric motor comprises a magnet disposed on the fixed part of the motor. The invention also proposes a propulsion unit, in particular for a drone, comprising a propeller comprising a hub and a plurality of blades, an electric motor of the brushless synchronous motor type with a rotating cage, having a motor support, the motor having a part stationary device comprising a stator connected to the motor support, and a mobile part comprising a rotor movable about a central axis of rotation of the motor for driving the propeller, and a motor control device.
    In a characteristic manner of the invention, at least one blade of the helix comprises a plurality of light-emitting diodes, the helix further comprises a light-emitting diode control device, the motor comprises a hollow central shaft, the motor support comprises a light-emitting diode, communication device positioned on one side of the hollow shaft of the engine so as to communicate with a communication device integrated in a helix assembled on the engine via the hollow shaft of said engine, and the engine control device is able to communicate with the engine communication device for transmitting and / or receiving commands from the diode controller.
    According to various advantageous subsidiary characteristics: the electric motor comprises at least one inductance disposed on the fixed part of the motor and at least one inductance disposed on the movable part of the motor for receiving power capable of supplying the control device of the diodes. the communication devices are transmitting and receiving devices. the communication devices are infrared transmitter / receiver devices. - The electric motor comprises a magnet disposed on the fixed part of the engine and the propeller comprises a magnetic field sensor so as to detect the position of the propeller relative to the fixed part of the engine. The invention also proposes a drone comprising a drone body and at least one propulsion unit according to the invention. 0
    An embodiment of the invention will now be described with reference to the appended drawings in which the same references designate identical elements from one figure to another.
    Figure 1 is a perspective view of a drone according to one embodiment of the invention, with four propulsion units.
    Figure 2 is a sectional view of the propellant unit by an axial plane, with the propeller secured to the engine, this figure showing in particular the internal structure of the rotary cage motor.
    Figure 3 is a view of the result of the display made by means of the propulsion unit according to the invention.
    Figure 4 is a detailed functional view of the propulsion unit according to one embodiment of the invention. 0
    We will now describe an example of implementation of the invention.
    In Figure 1, reference numeral 10 generally denotes a drone, which is for example a quadricopter such as the Bebop Drone model of Par-rot SA, Paris, France.
    According to the invention, the drone can be a flying wing type drone.
    The drone illustrated in FIG. 1 comprises four propulsion units 12 whose engines are controlled independently by an integrated navigation and attitude control system. The invention also applies to a flying wing type drone such as the eBee from SenseFly, SA, Switzerland.
    In Figure 1, there is shown the drone 10, with a drone body 16 secured to four connecting arms 18 radiating from the body of the drone. Each arm is equipped at its distal end with a propellant unit 12 comprising a motor driving a propeller 20 in rotation.
    According to a particular embodiment, in the lower part, the propulsion unit 12 is extended by a support of the drone body 22 forming a foot on which can rest on the ground stationary drone.
    According to the invention, the propulsion unit 12 comprises a propeller 20 having a hub 24 and a plurality of blades 26, in particular at least two blades and an electric motor 28 of the brushless synchronous brushless shaft type, having a motor support 30 .
    The motor comprises a stator 32 connected to the motor support and a rotor 34 movable about a central axis of rotation of the motor for driving the propeller and a motor control device 38. The motor control device 38 makes it possible to control and control the engine speed. The motor comprises a central shaft 36, the central shaft is for example a rotating shaft.
    The motor 28 of each propeller unit rotates a respective propeller 20 extending in an approximately horizontal plane above the arm 18.
    As illustrated in FIG. 2, this propeller 20 comprises in particular a hub 24 from which radially one or more blades 26, for example two or three, as in the example illustrated in FIG. hub 24 and the blades 26 are advantageously made in one-piece form, for example from a plastic material molded in one piece.
    Typically, the hub 24 comprises a flat disk-shaped upper wall extended at its periphery by a cylindrical outer wall 29 carrying the blades 26.
    As illustrated in FIG. 2, at least one blade 26 of the helix comprises a plurality of light emitting diodes 42 and the helix comprises a device 44 for controlling the light-emitting diodes in order to control the illumination or not of each of the light-emitting diodes and the color of each of the light emitting diodes. For this purpose, the light-emitting diodes are, for example, polychromatic or monochromatic light-emitting diodes.
    Such an assembly makes it possible to create, from such a rotating propeller, a display as shown in FIG.
    To achieve such a display, the plurality of light-emitting diodes is positioned along the length of the blade, in the radial direction of the blade. Preferably, in order to achieve retentive persistence without flickering, it is necessary that the complete image be displayed at more than 30Hz. Thus, the displayed image is correct especially when the speed of rotation of the helix reaches about 1,800 rotations per minute.
    The motor 28 comprises a fixed portion 30 forming a support, which can be secured to the connecting arm 18 of the drone body and a movable part.
    The fixed part 30 of the motor carries a plurality of fixed coils wound on respective mandrels, these coils being wound around an axis oriented radially with respect to the axis of rotation of the motor and constituting the various elements of the stator 32 of the synchronous motor. allowing the creation of a rotating field between the different windings.
    The moving part of the motor comprises the rotor 34, in particular fixed to a rotating cage 46 on which the propeller 20 will for example be secured for the purpose of direct drive of the latter.
    More precisely, the rotary cage 46 comprises a cylindrical lateral skirt 48 whose outer diameter is equal to the inside diameter of the cylindrical wall 50 of the hub 24 of the propeller, so as to be able to fit this hub on the rotary cage 46, with a very light play to be able to turn the propeller around the cage during the assembly / disassembly of this propeller on the engine.
    The side skirt 48 carries on the inner side the magnetic elements (permanent magnets) constituting the rotor 34 intended to be driven by the rotating field created by the coils 32 arranged vis-à-vis.
    The rotating cage 46 is mounted on a movable central shaft 36 for rotating the motor.
    According to the invention, the central shaft 36 is a hollow shaft.
    The fixed portion 30 forming the engine support comprises a communication device 54 and the propeller also comprises a communication device 56 integrated therein.
    According to the invention, the communication devices 54, 56 are positioned on either side of the central hollow shaft 36 of rotation of the motor in order to be able to communicate, in particular optically, by using the hollow portion of the central shaft of the engine.
    According to one embodiment, the hub 24 of the propeller comprises a wall integrating the communication device 56 so that when the hub is fixed to the motor 28, the communication device 56 is positioned above the hollow portion of the central shaft of the engine.
    Similarly, the engine support 30 comprises, for example inserted in the thickness of the support, a communication device 54 positioned such that during assembly of the central shaft 36 of the engine, the communication device 54 is positioned at the the hollow portion of the central shaft 36 of the engine.
    According to the invention, in order to control and control the display of a message by the propulsion unit, the engine control device 38 is able to communicate with the communication device 54 of the engine to issue commands to the control device 44 diodes via the communication device 56 and / or receive commands from the control device 44 of the diodes via the communication devices 56 and 54.
    Indeed, according to a particular embodiment, the motor control device 38 controls the display of the message made on the helix, in particular by sending commands to the control device of the diodes of the helix in order to display the desired message. .
    According to a particular embodiment, the communication devices 54 and 56 are transmitting and receiving devices, for example, infrared transmitter / receiver devices.
    The bidirectional communication of the communication devices allows: on the one hand the sending of commands and the update of the software of the control device of the diodes of the propeller by the engine control device to the control device of the diodes of the and - on the other hand, the receipt, by the engine control device, information for example status information of the operation of the control device of the diodes of the propeller.
    According to one embodiment, the control device of the diodes 44 and the communication device 56 of the propeller can be overmoulded so as to protect these devices from shocks and moisture and to allow good aerodynamic performance. The display via the light-emitting diodes of the helix makes it possible to display a text message, an image in particular in color, a video or a logo as represented in FIG.
    The command transmitted by the control device 44 to each of the light emitting diodes integrated in the helix, allows the ignition or not each of the diodes and the desired color. The retinal persistence of the eye allows to see or read a message emitted by the propeller when it is in motion.
    In order to transmit the necessary power to the control device 44 of the light-emitting diodes to operate, it must be inserted a mechanism to transmit the motor to the propeller this power required.
    According to a particular embodiment, the electric motor 28 comprises at least one inductor 60 disposed on the fixed part of the motor and at least one inductor 62 arranged on the movable part of the motor to receive the power which is then transmitted to the propeller in particular via an electrical cable allowing the control device 44 diodes and diodes to operate.
    As illustrated in FIG. 4, the inductor 60 positioned on the fixed part of the motor and the inductor 62 positioned on the movable part of the motor are coupled so as to receive power which is delivered to the devices present in the helix.
    In addition, in order to synchronize the helix and the fixed part of the motor, a magnet 64 is inserted in the electric motor on the fixed part of the motor and a magnetic field sensor 66 is inserted, for example a Hall effect sensor. , in the helix so as to detect the position of the helix relative to the fixed part of the engine.
    In a particular aspect, the helix comprises connection means connecting the diode control device, the communication device, the light emitting diodes and the magnetic field sensor. These connection means are made for example by an overmoulded conductive hose or a printed circuit ("Printed Circuit Board" in English terminology), for example a rigid printed circuit.
    FIG. 4 schematically represents the electronic architecture of the propulsion unit according to the invention.
    It is represented the fixed part 102 and the mobile part 104 of the propulsion unit 12.
    The fixed part of the propulsion unit comprises a means of connection to a power supply 106, this connection means is connected in particular to the inductor 60 arranged on the fixed part of the motor 28 so as to supply the inductor 62. The fixed part of the Propulsion unit also comprises a motor control device 38 comprising for example a microcontroller, the motor control device 38 being connected at least to the communication device 56 of the engine.
    Finally, according to the invention, the fixed part of the propellant unit comprises a magnet 64.
    The moving part of the propulsion unit composed of the rotor part of the engine on which a helix is assembled comprises an inductor 62 able to supply the devices of the propeller.
    In particular, the inductor 62 is able to be electrically connected to a rectifier and an energy storage device 108, for example a capacitor, the rectifier and the energy storage being, for example, mounted on the propeller. The propeller comprises a communication device 56 connected to a control device of the diodes 44 comprising for example a microcontroller, the latter driving the light emitting diodes 42 positioned on at least one blade of the propeller. The energy store 108 also supplies the control device of the diodes 44 of the propeller.
    Finally, the moving part of the propulsion unit comprises a magnetic field sensor 66, for example a Hall effect sensor positioned on the helix and communicating with the control device of the diodes 44 of the propeller.
    The communication devices 54 and 56 respectively of the fixed part and the moving part of the propellant unit will communicate, in particular by optical link, for example by infrared.
    Finally, the magnet 64 positioned on the fixed part of the engine block will emit a magnetic field that the magnetic field sensor 66 positioned on the moving part of the propulsion unit will detect.
    Thus, it is clear from reading this figure that the fixed and mobile parts of the propulsion unit are coupled without any physical link with regard to the transmission of power, the communication between the different communication devices and for the synchronization of these two. parts.
    权利要求:
    Claims (16)
    [1" id="c-fr-0001]
    A propeller (20) for assembly on a rotary brushless synchronous motor type motor having a hollow central shaft, comprising a hub (24) and a plurality of blades (26), characterized in that the least one blade of the helix comprises a plurality of light-emitting diodes (42), the helix further comprises o a control device (44) of the light-emitting diodes, o a communication device (56) positioned on the hub of the light-emitting diode propeller so as to communicate with a communication device of an electric motor via the hollow shaft of said motor, where the control device (44) of the diodes being able to communicate with the communication device (56) of the propeller so as to to issue and / or receive orders.
    [2" id="c-fr-0002]
    2. Propeller according to any one of the preceding claims, characterized in that the communication device is a transmitter and receiver device.
    [3" id="c-fr-0003]
    3. Propeller according to any one of the preceding claims, characterized in that the communication device is an infrared transmitter / receiver device.
    [4" id="c-fr-0004]
    4. Propeller according to any one of the preceding claims, characterized in that the helix comprises a magnetic field sensor (66).
    [5" id="c-fr-0005]
    5. Propeller according to any one of the preceding claims, characterized in that the plurality of light-emitting diodes is positioned along the length of the helix.
    [6" id="c-fr-0006]
    6. Motor (28) of the rotary brushless synchronous motor type having a motor support, a fixed part comprising a stator (32) connected to the motor support, a movable part comprising a rotor (34) mobile about a central axis of rotation of the motor, and a motor control device (38), characterized in that: - the motor comprises a hollow central shaft, - the motor support comprises a communication device (54) positioned on one side of the hollow shaft of the engine so as to communicate with a communication device (56) integrated in a helix assembled on the engine via the hollow shaft of said engine, and - the engine control device (38) is able to communicate with the device the engine to transmit and / or receive commands.
    [7" id="c-fr-0007]
    7. Motor according to the preceding claim, characterized in that the electric motor comprises at least one inductor (60) disposed on the fixed part of the motor and at least one inductor (62) disposed on the movable part of the motor to receive power. .
    [8" id="c-fr-0008]
    8. Motor according to any one of claims 6 to 7, characterized in that the communication device is a transmitter and receiver device.
    [9" id="c-fr-0009]
    9. Motor according to any one of claims 6 to 8, characterized in that the communication device is an infrared transmitter / receiver device.
    [10" id="c-fr-0010]
    10. Motor according to any one of claims 6 to 9, characterized in that the electric motor comprises a magnet (64) disposed on the fixed part of the motor.
    [11" id="c-fr-0011]
    11. Propulsion unit (12), in particular for a drone, comprising - a propeller (20) comprising a hub (24) and a plurality of blades (26), - an electric motor (28) of the synchronous brushless synchronous motor type. rotating cage, having a motor support, the motor having a fixed part comprising a stator (32) connected to the motor support, and a movable part comprising a rotor (34) movable about a central axis of rotation of the motor for the drive of the propeller, and an engine control device (38), characterized in that: - at least one blade (26) of the propeller comprises a plurality of light-emitting diodes (42), - the propeller further comprises a control device (44) of the light-emitting diodes, - the motor comprises a hollow central shaft (36), - the motor support comprises a communication device (54) able to communicate with a communication device (56) integrated in the helix , the communication devices being positioned by and - the engine control device (38) is adapted to communicate with the communication device (54) of the engine in order to transmit and / or receive commands from the engine control device. control (44) of the diodes.
    [12" id="c-fr-0012]
    12. Propulsion unit according to claim 11, characterized in that the electric motor comprises at least one inductor (60) disposed on the fixed part of the motor and at least one inductor (62) disposed on the movable part of the motor to receive the power capable of supplying the control device of the diodes.
    [13" id="c-fr-0013]
    13. Propulsion unit according to any one of claims 11 to 12, characterized in that the communication devices are transmitting and receiving devices.
    [14" id="c-fr-0014]
    14. Propellant unit according to any one of claims 11 to 13, characterized in that the communication devices are infrared transmitter / receiver devices.
    [15" id="c-fr-0015]
    15. Propulsion unit according to any one of claims 11 to 14, characterized in that the electric motor comprises a magnet (64) disposed on the fixed part of the motor and the propeller comprises a magnetic field sensor (66) so to detect the position of the propeller relative to the fixed part of the engine.
    [16" id="c-fr-0016]
    16. Drone (10) comprising a drone body (16) and at least one propulsion unit (12) according to any one of claims 11 to 15.
    类似技术:
    公开号 | 公开日 | 专利标题
    EP3202475B1|2018-10-31|Propulsion unit allowing the display of a message
    EP2873614A1|2015-05-20|Rotary-wing drone with direct-drive propellers and quick assembly
    EP1002716B1|2005-08-24|Method and device for the attitude control of a satellite
    EP2394912A1|2011-12-14|Autonomous displacement means for aircraft
    EP3168149A1|2017-05-17|Drone having a coupled thruster bracket
    EP1376056A1|2004-01-02|Modular system for generating a reference plane using laser
    WO2014067563A1|2014-05-08|Remote controlled mobile platform able to move through a medium such as water and air
    EP3159964B1|2018-12-19|Drone with body leg housing an antenna
    CA2921181C|2018-08-21|Aircraft landing gear including a telescopic linear rod
    WO2001060692A1|2001-08-23|Remote-controlled flying machine, in particular for surveillance or inspection
    FR2891618A1|2007-04-06|Compact device for rotating control surfaces of projectile, e.g. missile, comprises motors for rotating control heads carrying surfaces, via annular segments sliding in circular channel in device body
    FR3048186A1|2017-09-01|DRONE HAVING RELEVABLE DRONE BRACKETS
    FR2851932A1|2004-09-10|Aircraft e.g. radio controlled helicopter, rotor thrust modifying device, has coil creating magnetic field that interacts with permanent magnet to create torque that turns rotating unit and to modify angle of incidence of two blades
    CA2847078A1|2013-03-07|Multiaxis drive device and control instrument fitted with such a device
    EP2767794B1|2015-07-15|Projectile with control surfaces and procedure of controlling the control surfaces of such a projectile
    EP2578451B1|2013-09-18|Actuator for vehicle headlight
    EP3652069B1|2021-07-14|Device for direct control of blade by electromechanical actuator
    EP3423349B1|2020-11-25|Remote-controlled unmanned foldable aircraft
    FR2630397A1|1989-10-27|Dirigible balloon
    EP2451059B1|2019-01-23|Brushless electromagnetic motor.
    EP0448423B1|1994-12-21|Detection system for roll stabilized airship
    FR2964946A1|2012-03-23|SMALL FLYING ENGINE WITHOUT PILOT
    FR3106242A1|2021-07-16|Electromagnetic rotary drive device
    CA3129980A1|2020-10-22|Rotating blade aerodyne propulsion device with vertical take-off and landing, and aerodyne comprising at least one such propulsion device
    CA3044019A1|2018-05-24|Virtual reality accessory
    同族专利:
    公开号 | 公开日
    JP2017194665A|2017-10-26|
    EP3202475B1|2018-10-31|
    CN107031829A|2017-08-11|
    FR3047346B1|2018-02-02|
    EP3202475A1|2017-08-09|
    US20170221395A1|2017-08-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20070049159A1|2005-08-26|2007-03-01|Kulis Richard W Ii|Illuminable propeller assembly for model vehicle|
    WO2010045641A2|2008-10-17|2010-04-22|Mattel, Inc.|Toy with audio and visual feedback|
    WO2011091606A1|2010-01-30|2011-08-04|孙亚凯|Remote control flying saucer toy|
    CN201921502U|2010-05-17|2011-08-10|李川涛|Helicopter rotor wing electromagnetic steering engine|
    CN203001968U|2012-12-13|2013-06-19|杜超|Remote controlled toy helicopter with graphic display function|
    EP2873614A1|2013-11-13|2015-05-20|Parrot|Rotary-wing drone with direct-drive propellers and quick assembly|
    CN201244361Y|2008-07-16|2009-05-27|胡伟强|Remotely-controlled aircraft with airfoil lamp|
    CN101966395A|2009-07-28|2011-02-09|孙培庆|Colored LED graphical display night flight propeller|
    FR2952549B1|2009-11-13|2011-11-25|Parrot|SUPPORT BLOCK FOR A ROTARY SAIL DRONE MOTOR|
    CN202777802U|2012-10-15|2013-03-13|周麟伟|Toy helicopter capable of displaying light-emitting characters|
    CN203425517U|2013-07-19|2014-02-12|司徒兆康|Helicopter model and rotor wing thereof|USD843266S1|2016-01-26|2019-03-19|SZ DJI Technology Co., Ltd.|Aerial vehicle|
    USD821263S1|2016-08-31|2018-06-26|Trend Right Research And Development Corporation|Unmanned aerial vehicle|
    USD818874S1|2016-12-27|2018-05-29|Yuneec InternationalCo., Ltd.|Unmanned aerial vehicle|
    USD814973S1|2017-01-23|2018-04-10|Shenzhen Hubsan Technology Co., Ltd.|Quadcopter drone|
    USD828222S1|2017-03-07|2018-09-11|Beijing Jingdong Shangke Information Technology Co|Unmanned aerial vehicle|
    USD825379S1|2017-04-11|2018-08-14|Drone Racing League, Inc.|Drone aircraft|
    USD869375S1|2017-04-13|2019-12-10|SZ DJI Technology Co., Ltd.|Aerial vehicle|
    USD816546S1|2017-04-24|2018-05-01|Alex Wang|Drone|
    USD813724S1|2017-05-18|2018-03-27|Shenzhen C-Fly Intelligent Technology Co., Ltd.|Unmanned aerial vehicle|
    USD853312S1|2017-05-25|2019-07-09|Shenzhen Highgreat Innovation Technology Development Co., Ltd.|Landing gear for unmanned aerial vehicle|
    USD820158S1|2017-06-02|2018-06-12|Dusitech Co., Ltd.|Combined body and landing gear for drone|
    USD818872S1|2017-06-16|2018-05-29|XDynamics Limited|Foldable unmanned aerial vehicle|
    CN109835454B|2017-11-27|2020-07-24|光宝科技股份有限公司|Propeller structure|
    WO2021134541A1|2019-12-31|2021-07-08|李庆远|Intersecting multi-rotor display|
    法律状态:
    2017-02-17| PLFP| Fee payment|Year of fee payment: 2 |
    2017-08-04| PLSC| Search report ready|Effective date: 20170804 |
    2018-02-15| PLFP| Fee payment|Year of fee payment: 3 |
    2019-02-13| PLFP| Fee payment|Year of fee payment: 4 |
    2020-11-13| ST| Notification of lapse|Effective date: 20201006 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1650839|2016-02-03|
    FR1650839A|FR3047346B1|2016-02-03|2016-02-03|PROPELLER BLOCK FOR DISPLAYING A MESSAGE.|FR1650839A| FR3047346B1|2016-02-03|2016-02-03|PROPELLER BLOCK FOR DISPLAYING A MESSAGE.|
    EP17150628.0A| EP3202475B1|2016-02-03|2017-01-09|Propulsion unit allowing the display of a message|
    CN201710058014.2A| CN107031829A|2016-02-03|2017-01-23|Allow the propulsion unit for showing message|
    JP2017016893A| JP2017194665A|2016-02-03|2017-02-01|Propulsion unit enabling display of message|
    US15/423,916| US20170221395A1|2016-02-03|2017-02-03|Propulsion unit allowing the display of a message|
    [返回顶部]