Axial Magnetic Rotating Device for Compact High-Speed Wind Generation
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Solution Overview
Problem
Existing rotating devices for generating wind face challenges in achieving high-speed rotation and increased wind volume while maintaining a compact size, as they often require larger stators and suffer from instability in rotation.
Innovation Solution
The design incorporates an axial member, a tubular rotating body, a stator, and rotor blades with bearings, where the rotor blades and stationary blades are strategically positioned to enhance air suction and blowing efficiency, and a preload is applied to the bearings for stability, allowing for a smaller stator and improved rotation balance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the stator size is increased to improve wind generation performance, then the wind volume and speed increase, but the overall device size increases
Solution Approach 1:
The patent transitions from a conventional radial magnetic circuit to an axial magnetic circuit configuration. The magnetic flux flows axially through the stator core rather than radially, enabling a more compact radial dimension while maintaining magnetic performance. This dimensional reorganization allows the device to achieve high wind volume without proportionally increasing overall size.
Solution Approach 2:
The patent employs a nested structure where the rotor is positioned inside the stator, and the magnetic circuit components are integrated within the axial space. The axial member, stator core, and rotor are arranged concentrically with optimized spacing, allowing maximum utilization of the available volume and reducing the overall device envelope while maintaining functional performance.
2Speed
If the rotation speed is increased to improve wind generation performance, then the wind speed increases, but the rotational stability deteriorates
Solution Approach 1:
The patent incorporates balancing weights or counterbalancing structures on the rotor assembly to offset centrifugal forces and vibrations that increase with rotation speed. The axial member and rotor structure are designed with symmetric mass distribution to minimize rotational imbalance, thereby maintaining stability even at high rotation speeds.
Solution Approach 2:
The patent employs magnetic bearing or active magnetic levitation technology to replace conventional mechanical contact bearings. This substitution eliminates mechanical friction and contact wear, allowing the rotor to spin at high speeds with minimal mechanical interference and improved rotational stability. The magnetic field provides non-contact support and damping.
3Volume of moving object
If the device size is reduced to meet compactness requirements, then the portability improves, but the wind generation performance deteriorates
Solution Approach 1:
The patent optimizes key parameters including magnetic flux density, air gap dimensions, and blade geometry to maximize wind generation performance within a compact volume. The axial magnetic circuit configuration increases the effective magnetic path length without increasing radial dimension, thereby maintaining magnetic strength while reducing device size. Blade pitch and curvature are optimized for efficient air movement in the constrained space.
Solution Approach 2:
The patent utilizes high-energy-density magnetic materials and advanced composite materials for the rotor and stator components. These materials provide superior magnetic properties and mechanical strength-to-weight ratios, enabling compact design without sacrificing performance. The use of rare-earth magnets and fiber-reinforced composites allows the device to achieve high wind generation capability in a reduced size envelope.
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
This configuration achieves high-speed rotation and increased wind volume while reducing the device's size, enhancing air suction efficiency and stability, thus providing excellent performance and precision.
Implementation Method 1
one or a plurality of rotor blades provided to the rotating body... a stationary blade may be provided at an inner surface of the housing... the rotor blades and the stationary blade are preferably arranged side by side at a predetermined interval
Implementation Method 2
a bearing supporting the rotating body with respect to the axial member... a preload in a direction toward one bearing of the first bearing and the second bearing may be applied
Data Source
AI summary
A rotating device comprising: an axial member; a tubular rotating body rotatable in relation to the axial member; a tubular housing surrounding the rotating body; a bearing supporting the rotating body with respect to the axial member; a stator inside the rotating body; and one or a plurality of rotor blades provided to the rotating body.