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Magnetic suspension driving motor of multi-rotor unmanned aerial vehicle

A drive motor and magnetic levitation technology, applied in the field of drones, can solve the problems of reducing the efficiency of the drive system, costing the control system, increasing control energy consumption, etc., achieving simple technical principles, long drone stay in the air or working time, The effect of improving driving efficiency

Pending Publication Date: 2022-02-18
SHANGHAI WINDTECH OCEAN SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing magnetic levitation motors usually use active magnetic levitation technology, and a complex control system must regulate the excitation current in each direction, which also increases additional control energy consumption, reduces the efficiency of the drive system, and the controller also needs to configure many Sensors and complex control devices, plus electromagnetic coils and even software overhead, so the cost of the entire control system is very expensive, making it difficult for high-tech magnetic levitation technology to enter the field of traditional motors

Method used

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  • Magnetic suspension driving motor of multi-rotor unmanned aerial vehicle
  • Magnetic suspension driving motor of multi-rotor unmanned aerial vehicle
  • Magnetic suspension driving motor of multi-rotor unmanned aerial vehicle

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Embodiment Construction

[0032] UAVs are extensions of human sensory organs and limbs, and have great application prospects. For example, through UAVs, sounds and images in the distance can be observed, which is equivalent to the extension of human ears and eyes. The air transmission of the machine is equivalent to the extension of the human limbs, replacing the human transportation work. The reason why the multi-rotor UAV can lift into the air, hang in the air or walk in the air depends on the lift generated by the drive motor to drive the rotor to rotate, which is similar to the lift generated by the blades of a helicopter.

[0033] In mechanical motion, the motor shaft is usually subjected to radial and axial external forces. These external forces may cause friction between relatively moving components, and friction is difficult to escape. Between the rotating bodies, the frictional force acts on the bearing, and the frictional force must be eliminated unless the bearing is removed.

[0034] Gravi...

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Abstract

According to the driving motor magnetic suspension technology in the multi-rotor unmanned aerial vehicle power system disclosed by the invention, lift force generated in the rotors of the unmanned aerial vehicle is transmitted to the unmanned aerial vehicle body in the form of magnetic suspension force instead of being transmitted through a motor bearing, so that friction force and friction loss in the bearing are eliminated, and the driving efficiency of the motor is improved; and the magnetic suspension force and the lift force are infinitely balanced without a controller, so that the manufacturing cost is equivalent to that of a traditional non-magnetic suspension motor, and the manufacturing is relatively easy.

Description

technical field [0001] The invention belongs to the technical field of unmanned aerial vehicles, and specifically proposes a motor-driven power device for a multi-rotor unmanned aerial vehicle with magnetic levitation characteristics and an implementation method thereof. Background technique [0002] In the field of drones, multi-rotor drones are a widely used variety. Multi-rotor UAVs are also called multi-axis UAVs. UAVs are powered by double-numbered motors. A power device consisting of a rotor is installed on each motor shaft to drive the motor to provide power for the rotation of the rotors or blades. , the rotor installed on the motor shaft of the UAV pushes the air down, and at the same time, the rotor also receives an axial reaction force from the air. This reaction force is the lift force on the rotor, but only the lift force on the rotor is transferred to the stator body. That is, when the UAV body is used, it can really become the lift force of the UAV. The mediu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/00H02K7/09H02N15/00F16C37/00B64C27/12
CPCH02K7/003H02K7/09H02N15/00F16C37/00B64C27/12
Inventor 於岳亮於璐於菲
Owner SHANGHAI WINDTECH OCEAN SCI & TECH