Sandwich Facade Panel With Laminated PV Modules for Large BIPV
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Solution Overview
Problem
Conventional photovoltaic modules are limited in size and cannot be easily integrated into large facade panels without compromising their structural integrity or aesthetic appeal, which hinders the efficient use of building-integrated photovoltaics (BIPV) in architectural designs.
Innovation Solution
A sandwich-like facade panel is developed, featuring a monolithic glass substrate with pre-connected, laminated photovoltaic modules bonded to its underside using an autoclave process, allowing for oversized BIPV modules that can be seamlessly integrated into large facade panels while maintaining structural support and aesthetic design flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If conventional photovoltaic modules are used in facade panels, then photovoltaic functionality is achieved, but the modules are limited in size and cannot be easily integrated into large facade panels without compromising structural integrity or aesthetic appeal
Solution Approach 1:
The facade panel is segmented into multiple photovoltaic modules arranged in a matrix pattern, allowing the large panel to be constructed from smaller, structurally sound modules while achieving the desired large overall area
Solution Approach 2:
The invention uses a composite structure combining photovoltaic modules with a supporting framework and backing material, creating a unified facade panel that maintains structural integrity while integrating photovoltaic functionality across large areas
2Area of stationary object
If conventional photovoltaic modules are used in facade panels, then photovoltaic functionality is achieved, but aesthetic appeal is compromised due to size limitations and integration difficulties
Solution Approach 1:
The photovoltaic modules are arranged in a regular matrix pattern with consistent spacing, creating a uniform and aesthetically pleasing appearance that can be scaled to large facade areas without compromising design quality
Solution Approach 2:
The framework and spacing between modules are designed to be visually unobtrusive, allowing the photovoltaic modules to form a cohesive aesthetic pattern across the entire facade surface
3Use of energy by moving object
If photovoltaic modules are integrated into large facade panels, then energy generation is enhanced, but the integration process becomes complex and compromises structural integrity
Solution Approach 1:
The facade is divided into multiple standard-sized photovoltaic modules that can be manufactured and installed using standardized processes, reducing integration complexity while enabling large-scale energy generation
Solution Approach 2:
The framework structure serves multiple functions: providing structural support, enabling module installation, and facilitating maintenance access, thereby simplifying the overall integration process while supporting enhanced energy generation
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 solution enables the creation of large, architecturally designed facade panels with integrated photovoltaic capabilities, enhancing energy generation while maintaining a visually cohesive and structurally sound building envelope.
Implementation Method 1
The photovoltaic modules are laminated to an underside of the substrate opposite from the upper side in the course of an autoclave process
Data Source
AI summary
The invention relates to a structural element (1) in the form of a particularly sandwich-like facade panel. The structural element (1) comprises a substrate in the form of a monolithic glass plate (2) having an upper side which forms the outer face of the structural element (1) realized in particular as a facade panel. The structural element (1) further comprises a plurality of photovoltaic modules (3) arranged in a row or in an array. The invention particularly provides for the photovoltaic modules (3) to be materially laminated onto an underside of the substrate (2) opposite from the upper side particularly in the course of an autoclave process.