Window-Mounted Solar Module Frame for Easy Retrofit and Replacement

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Solution Overview

Problem

Existing methods for integrating solar cells on windows face issues such as degradation of window functions, mismatched lifespans leading to uneconomical replacements, and complex installation requiring expert assistance.

Innovation Solution

A solar module system comprising a support member with a solar module, a frame member, and terminals for easy installation and detachment, allowing the solar module to be mounted on a window without interfering with its existing structure and enabling easy replacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a solar cell is embedded in a window hole or hollow, then the solar cell can be integrated with the window, but the window functions such as heat resistance and mechanical resistance are degraded

Engineering Contradiction:

Improveintegration of solar cell with windowVSAvoidwindow function degradation

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system divides the solar integration into separate components: a support member with solar cell that can be attached to the window surface without modifying the window structure. This segmentation preserves window integrity while achieving solar integration.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A support member acts as an intermediary between the solar cell and the window. This intermediary component allows the solar cell to be mounted on the window while preventing direct contact that would degrade window functions.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Duration of action of stationary object

If solar cell and window glass have mismatched lifespans, then both must be replaced when either fails, but this leads to uneconomical replacements

Engineering Contradiction:

Improvelifespan matchingVSAvoidreplacement cost

Core Design Contradiction:

Duration of action of stationary objectVSEase of manufacture

Solution Approach 1:

The solar cell assembly is segmented from the window structure, allowing independent replacement of the solar module without replacing the window glass. This resolves the lifespan mismatch issue by enabling selective replacement of only the solar component.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system enables dynamic replacement of the solar module while keeping the window structure in place. The detachable support member allows the solar cell to be replaced independently based on its lifespan cycle, optimizing economic efficiency.

Inventive Principle:

Principle #15Dynamics

3Adaptability or versatility

If window glass is replaced to retrofit a solar cell on an already-existing window, then the solar cell can be integrated, but work costs increase

Engineering Contradiction:

Improveretrofit capabilityVSAvoidinstallation cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The support member with solar cell is pre-assembled as a complete unit before attachment to the window. This preliminary assembly eliminates the need for complex on-site installation and window glass replacement, reducing work costs while maintaining retrofit capability.

Inventive Principle:

Principle #10Preliminary action

4Ease of operation

If a member with embedded solar cell is mounted independently of window, then mounting and removal is easy, but expert connection work is required for output extraction

Engineering Contradiction:

Improvemounting easeVSAvoidconnection complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The support member is designed with universal features: it provides both mechanical support for easy mounting/removal and integrated electrical terminals for simple output extraction. This multi-functionality eliminates the need for expert connection work while maintaining ease of operation.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 provides a durable, easily installable, and replaceable solar module solution that maintains window functionality and design aesthetics while avoiding complex installations and costly replacements.

Implementation Method 1

a solar module arranged on the principal surface

Methodology Applied

Scientific EffectPhotovoltaic effect: Photovoltaic Effect

Data Source

PatentUS12580521B2Solar module system, solar system, and mounting method

Publication Date: 2026.03.17 KK TOSHIBA

AI summary

According to one embodiment, a solar module system includes: a support member that has a principal surface; a solar module arranged on the principal surface; a first terminal arranged on the support member and electrically connected with an electrode of the solar module; a frame member configured to hold the support member such that the solar module opposes to a transparent member; and a second terminal arranged on the frame member and electrically connected with the first terminal of the support member being held by the frame member.