Inclined and fixed blind system
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Solution Overview
Problem
Existing solar shading systems for buildings struggle to efficiently manage solar gain in temperate regions, particularly during summer months, as they often require complex and expensive mechanized solutions to block or allow solar flux, and are not optimized for various orientations like South-East and South-West bay windows.
Innovation Solution
A sunshade system with louvers that have slats oriented according to a common plane differentiated by the building's latitude and surface orientation, using a specific geometric configuration to minimize winter shading and maximize summer shading, allowing for a simple, non-mechanized, cost-effective solution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If mechanized shutters are used to adjust orientation for solar blocking, then solar flux control is improved, but device complexity and cost increase significantly
Solution Approach 1:
The shutter system is divided into multiple independent slats that can be individually oriented. Each slat is segmented from the others, allowing them to be positioned at different angles to optimize solar blocking for specific directions and seasons without requiring complex mechanized adjustment of the entire system.
Solution Approach 2:
The invention introduces a new dimension of orientation by tilting slats not only horizontally but also at an angle relative to the window plane. This additional angular dimension allows the slats to block solar flux from specific directions (e.g., west-facing surfaces in summer) while maintaining simplicity in the adjustment mechanism.
2Ease of manufacture
If horizontal slat orientation is used for blocking solar flux, then ease of manufacture is improved, but solar blocking effectiveness during summer is reduced
Solution Approach 1:
The invention changes the orientation parameter of the slats from the conventional horizontal position to an inclined position relative to the window plane. This parameter change optimizes the slats' ability to block high-angle summer sun while still allowing low-angle winter sun to pass through, improving solar control effectiveness without significantly complicating manufacturing.
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 system effectively allows minimal winter solar entry while providing total summer shading, improving energy efficiency and reducing overheating, with optimal performance for various orientations and seasons without the need for complex mechanisms.
Implementation Method 1
The system effectively allows minimal winter solar entry while providing total summer shading
Implementation Method 2
Solar energy provides free heating for buildings. It therefore allows substantial savings on traditional heating methods in winter
Data Source
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AI summary
The present invention consists of a system of blinds made up of slats that are inclined in such a way as to maximize the direct solar illumination received during the winter months and to minimize same during the summer months. The inclinations are defined according to the terrestrial latitude of the building supporting these blinds, and the orientation of the surface of the building that is to be protected, generally glazing. The longitudinal inclination of the slats is defined such that the longitudinal direction of the slats is substantially parallel to the straight line of intersection of the plane of the said surface and the plane of the equator seen from said building. The transverse inclination of the slats is defined such that these slats face in a direction comprised between 12° and 24° below the direction of the plane of the equator.