Disc Flat Wire Ducted Fan Motor With Flywheel Backup Power
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Solution Overview
Problem
Electric aircrafts face challenges in achieving vertical take-off due to high power requirements, leading to reduced effective load and increased risk of crashes during power failures, which affects aviation safety.
Innovation Solution
A ducted fan device integrated with a permanent magnet synchronous disc flat wire motor, combining axial flow and centrifugal composite blades, flywheel energy storage, and gyro stabilization, which reduces weight, mechanical wear, and noise, while improving efficiency and safety by omitting the bearing mechanism and enhancing power supply reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If traditional bearing mechanisms are used in electric aircraft power equipment, then mechanical support and rotation are achieved, but weight increases, mechanical wear occurs, and noise increases
Solution Approach 1:
The patent replaces the traditional mechanical bearing system with an electromagnetic suspension system. The electromagnetic suspension uses magnetic fields to levitate and support the rotor, eliminating physical contact between rotating and stationary parts. This substitution removes mechanical wear, reduces noise, decreases weight, and extends service life while maintaining rotational support functionality.
2Power
If high power equipment is installed for vertical take-off, then vertical take-off capability is achieved, but effective load capacity is reduced due to increased weight
Solution Approach 1:
By replacing mechanical bearings with electromagnetic suspension, the patent eliminates the weight of bearing structures, lubricants, and associated mechanical components. This reduction in power equipment weight directly increases the effective load capacity of the aircraft while maintaining the high power output needed for vertical take-off.
3Reliability
If power failure occurs in traditional electric aircraft, then power loss happens, but immediate crash occurs due to lack of energy storage
Solution Approach 1:
The patent incorporates a flywheel energy storage system that continuously stores kinetic energy during normal operation. In the event of power failure, this pre-stored energy is immediately deployed to maintain rotor rotation and aircraft operation, providing a critical time buffer that prevents immediate crash and allows for safe emergency procedures.
4Volume of moving object
If integrated design is implemented combining motor and fan, then structural volume is optimized and heat dissipation is improved, but design complexity increases
Solution Approach 1:
The patent integrates the motor rotor and fan into a single unified structure, where the motor rotor serves dual functions as both the electromagnetic rotor and the fan blade assembly. This merging eliminates the need for separate motor housing, coupling mechanisms, and alignment systems, thereby reducing overall structural volume and simplifying the design despite the multifunctional requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The integrated design optimizes structural volume, improves heat dissipation, provides short-time high power through flywheel energy storage, and enhances safety by preventing immediate rotor stoppage during power failures, while gyro stabilization aids attitude detection and stability, making it suitable for aircraft applications.
Implementation Method 1
The permanent magnets are located between an upper set and a lower set of the plurality of layers of flat wire coils
Implementation Method 2
The diffusion cavity and the motor shell are arranged in a communicating mode to perform diffusion diversion on centrifugal compressed gas
Implementation Method 3
flywheel energy storage and other technologies are integrated
Implementation Method 4
a high-speed gyro, flywheel energy storage and other technologies are integrated
Data Source
AI summary
A ducted fan device integrated with a permanent magnet synchronous disc flat wire motor for a flying copter car, including a rotor system, a stator system, an air intake/exhaust control system, a detection system, a driving system and a power supply system. The stator system includes a motor shell, and flat wire coils respectively arranged on an upper end face and a lower end face of an inner wall of the motor shell are connected in series. The rotor system is arranged inside the stator system, including axial flow and radial flow composite integrated blades and permanent magnets. A part of centrifugal blades are replaced by the permanent magnets which are located on an outer side.