Rotatable Wind Blade Unit with Converging Guide Plates
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Solution Overview
Problem
Conventional wind energy power generation apparatuses require large spaces and are inefficient in generating stable electricity due to their fixed orientation, which limits their placement near densely populated areas and stability in varying wind directions.
Innovation Solution
A compact apparatus with a base, a rotatable blade unit, a generator, and a wind-collecting unit featuring angularly disposed upright plates that guide wind into converging channels to optimize energy conversion, ensuring stable power generation regardless of wind direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the prop height and blade length are increased to improve wind energy capture, then the space requirement increases, but the apparatus must be located at remote places far from densely populated areas
Solution Approach 1:
The blade unit is made rotatable relative to the base about a pivot axis, allowing dynamic adjustment of blade orientation to face wind directions from various directions. This dynamic capability enables effective wind energy capture without requiring excessively large prop height and blade length, thereby reducing the overall space requirement while maintaining productivity.
2Reliability
If the blade unit is fixed in orientation to simplify the structure, then the device complexity is reduced, but the apparatus cannot ensure stable electric generation for areas having wind from various directions
Solution Approach 1:
The blade unit is designed to rotate relative to the base about a pivot axis, enabling it to dynamically adjust its orientation to face wind directions from various directions. This dynamic arrangement ensures stable electric generation by maintaining optimal blade exposure to wind regardless of wind direction, while the rotation mechanism adds only moderate complexity to the overall device.
3Productivity
If the prop height is increased to about 70 meters and blade length to 35 meters to improve energy capture, then the wind energy conversion efficiency is improved, but the apparatus requires remote placement far from densely populated areas
Solution Approach 1:
The rotatable blade unit allows the apparatus to maintain high wind energy conversion efficiency by dynamically orienting blades toward wind sources from various directions. This eliminates the need for excessive prop height (70 meters) and blade length (35 meters) that would be required in fixed-orientation designs, thereby reducing the need for remote placement and improving implementation convenience while preserving productivity.
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 apparatus achieves stable electric power generation in a compact form, suitable for placement near populated areas and adaptable to varying wind directions, enhancing energy efficiency and usability.
Implementation Method 1
a blade unit including an upright rod extending vertically along a pivot axis and having a lower end disposed pivotally in the base, and an upper end, and at least one blade member having a plurality of upright blades connected fixedly to the upright rod such that the blade unit is rotatable relative to the base about the pivot axis so as to convert wind energy into a mechanical rotary power output
Implementation Method 2
a generator disposed in the base and coupled to the lower end of the upright rod of the blade unit to convert the mechanical rotary power output into electric power
Implementation Method 3
a wind-collecting unit mounted fixedly on the base, and including a plurality of upright plates angularly equidistant and disposed around the blade unit, any two adjacent ones of the upright plates defining an inwardly converging wind-guiding channel therebetween. The upright plates of the wind-collecting unit are shaped so that wind is guided by the upright plates of the wind-collecting unit to blow onto the first side surfaces of the blades of the blade member of the blade unit via the wind-guiding channels in the wind-collecting unit
Data Source
AI summary
An apparatus includes a blade unit including having upright blades connected fixedly to an upright rod that has a lower end disposed pivotally in a base such that the blade unit is rotatable relative to the base to convert wind energy into a mechanical rotary power output, and coupled to a generator in the base to convert the mechanical rotary power output into electric power. Each blade has opposite first and second side surfaces. The first side surface of each blade faces the second side surface of an adjacent blade. A wind-collecting unit includes upright plates fixed on the base, angularly equidistant and disposed around the blade unit. Any two adjacent plates define an inwardly converging wind-guiding channel therebetween. The plates are shaped so that wind is guided by the plates to blow onto the first side surfaces of the blades via the wind-guiding channels.