Hinged BIPV Roof Tile Modules for Aesthetic Integration

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Solution Overview

Problem

The adoption of solar technology is limited by aesthetic concerns, as existing solar systems stand out from traditional roofs, and the mismatch between the lifespan of solar systems and roofing materials, requiring costly replacements.

Innovation Solution

A hinged multi-section solar module system that integrates photovoltaic elements with a support skeleton, allowing for flexible installation and aesthetic integration with traditional roofing materials, reducing the need for additional framing and enabling installation on existing roofs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If solar modules are installed as separate arrays over existing roofs, then solar energy generation is achieved, but aesthetic appearance deteriorates due to visible height and material differences

Engineering Contradiction:
Improvesolar energy generationVSAvoidaesthetic appearance
Core Design Contradiction:
Use of energy by moving objectVSShape

Solution Approach 1:

The patent merges the solar module structure with traditional roofing materials by integrating photovoltaic cells into tile-like structures that match the appearance and profile of conventional roof tiles, eliminating the visual distinction between solar arrays and traditional roofing

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The solar tiles serve multiple functions simultaneously: they generate solar energy, provide roofing coverage, and maintain aesthetic consistency with traditional roofs, replacing the need for separate solar array installation over existing roofs

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Use of energy by moving object

If solar systems are installed on existing composition shingle roofs, then solar energy generation is achieved, but system reliability deteriorates due to lifespan mismatch between solar panels and roofing materials

Engineering Contradiction:
Improvesolar energy generationVSAvoidsystem lifespan consistency
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The hinged support skeleton provides dynamic adjustment capability, allowing the solar tiles to accommodate roof movement and settling over time, thereby extending the operational life of the solar system to match or exceed the roof lifespan

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent modifies the structural parameters of the support system by using flexible hinged connections instead of rigid mounting, enabling the system to adapt to thermal expansion, contraction, and structural settling, thereby improving long-term reliability

Inventive Principle:
Principle #35Parameter changes

3Use of energy by moving object

If conventional solar arrays are installed with extensive framing and mounting structures, then solar energy generation is achieved, but installation complexity increases requiring additional time and resources

Engineering Contradiction:
Improvesolar energy generationVSAvoidinstallation structure complexity
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the need for extensive battens, framing structures, and complex mounting hardware by integrating the support function directly into the tile structure itself, simplifying the installation process

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The hinged support skeleton uses flexible, thin-profile components that can be easily installed between roof tiles without requiring heavy framing structures, reducing installation complexity while maintaining structural integrity

Inventive Principle:
Principle #30Flexible shells and thin films

4Use of energy by moving object

If solar modules are installed requiring additional battens and framing structures, then solar energy generation is achieved, but manufacturing and installation costs increase

Engineering Contradiction:
Improvesolar energy generationVSAvoidinstallation cost
Core Design Contradiction:
Use of energy by moving objectVSEase of manufacture

Solution Approach 1:

The patent combines the functions of solar panel support, roof covering, and aesthetic finishing into a single integrated tile structure, eliminating the need for separate batten and framing components, thereby reducing material and labor costs

Inventive Principle:
Principle #5Merging (Combining)

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 simplifies and speeds up the installation process, reduces costs, and provides a visually appealing, long-lasting solar array that blends with the roof, addressing both aesthetic and lifespan mismatch issues.

Implementation Method 1

a plurality of photovoltaic elements including: two or more photovoltaic tiles, each photovoltaic tile having at least one solar cell

Methodology Applied
Scientific EffectPhotovoltaic effect: Photovoltaic Effect

Implementation Method 2

one or more flexure hinges extending from the spine, each flexure hinge having a hinge foot configured to secure to a roof deck and a hinge leg configured to bond to one of the photovoltaic glass tiles

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS10298171B2Hinged building integrated photovoltaic roof tile modules
Publication Date: 2019.05.21 TESLA INC
  • US10298171B2 patent drawing
  • US10298171B2 patent drawing
  • US10298171B2 patent drawing

AI summary

Building integrated photovoltaic (BIPV) systems provide for solar panel arrays that can be aesthetically pleasing to an observer. BIPV systems can be incorporated as part of roof surfaces as built into the structure of the roof, particularly as multi-region roofing modules that have photovoltaic elements embedded or incorporated into the body of the module, in distinct tiles-sized regions. Such multi-region photovoltaic modules can replicate the look of individual roofing tiles or shingles. Further, multi-region photovoltaic modules can include hinged support structures along the upper edge of the modules, allowing for lifting of portions of an installed module, giving access to the underlying roof deck for more efficient installation, maintenance, or removal of roofing structures down-roof of the installed module.