Removable PV Electronics Housing for Roof-Mounted Module Repair

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Solution Overview

Problem

There is a need for low profile electrical components with replaceable electronic components configured for use with photovoltaic systems installed on roof decks.

Innovation Solution

The development of electrical components with a housing containing electronic components such as optimizers, rapid shutdown devices, or inverters that are removably connected to electrical connectors, allowing for easy disconnection and replacement without removing the photovoltaic modules from the roof deck.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If electronic components are integrated into photovoltaic modules, then system reliability is improved, but ease of repair deteriorates

Engineering Contradiction:
Improvesystem reliabilityVSAvoidease of repair
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The patent divides the electrical component into separate functional modules: a housing that remains attached to the photovoltaic module and electronic components that can be independently removed and replaced. This segmentation allows the electronic components to be repaired or upgraded without removing the entire photovoltaic module, thus improving ease of repair while maintaining system reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent extracts the electronic components from the photovoltaic module by providing removable connections between the housing and the electronic components. This extraction enables independent access to electronic components for repair or replacement while the housing remains integrated with the module, resolving the contradiction between reliability and ease of repair.

Inventive Principle:
Principle #2Taking out (Extraction)

2Device complexity

If electronic components are permanently attached to photovoltaic modules, then device complexity is reduced, but adaptability deteriorates

Engineering Contradiction:
Improvedevice complexityVSAvoidadaptability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent introduces dynamic connectivity between the housing and electronic components through removable connections. This allows the system to transition between integrated and separated states, enabling adaptability for different electronic components while maintaining a relatively simple housing structure. The dynamic nature of the connection resolves the contradiction between device complexity and adaptability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The housing is designed with universal features that can accommodate different types of electronic components through standardized removable connections. This universality allows the same housing to work with various electronic components, improving adaptability without significantly increasing the complexity of the housing design.

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

3Ease of repair

If electronic components are made replaceable, then ease of repair is improved, but device complexity increases

Engineering Contradiction:
Improveease of repairVSAvoiddevice complexity
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

The patent segments the electrical component into a housing and removable electronic components, which simplifies the repair process by allowing direct access to electronic components. The housing structure is designed to be simple enough that the added complexity of removable connections does not significantly increase overall device complexity, thus resolving the contradiction between ease of repair and device complexity.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS12476585B2Electrical components for photovoltaic systems
Publication Date: 2025.11.18 GAF ENERGY LLC
  • US12476585B2 patent drawing
  • US12476585B2 patent drawing
  • US12476585B2 patent drawing

AI summary

A system includes at least one photovoltaic module installed on a roof deck, at least one electrical connector electrically connected to the photovoltaic module, and at least one electrical component electrically and removably connected to the electrical connector. The electrical component includes a housing and an electronic component located within the housing. The electronic component includes at least one of an optimizer, a rapid shutdown device, or an inverter. The electrical component is separate from the photovoltaic module and is configured to be disconnected from the electrical connector while the photovoltaic module remains installed on the roof deck.