Junction Box Mount With Injected Seal Cavity for Roof Moisture Protection
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Solution Overview
Problem
Existing junction boxes are not well-suited for outdoor environments due to material degradation and moisture ingress, leading to potential damage and increased installation complexity.
Innovation Solution
A junction box with an integrated sealing system that forms a permanent airtight and watertight seal by injecting sealant into an enclosed cavity around roof penetrations, eliminating the need for standard flashings and reducing installation time and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a junction box is partially environmentally sealed for outdoor use, then it can be installed on exterior surfaces, but moisture builds up around the junction box causing damage
Solution Approach 1:
The patent combines the sealing function with the mounting function by integrating a mounting gasket that simultaneously attaches the junction box to the roof and seals the penetration area. The sealant injection system merges the sealing process with the mounting process, creating a unified solution that addresses both installation and moisture protection needs.
Solution Approach 2:
The patent introduces a mounting gasket as an intermediary component between the junction box and the roof structure. This gasket creates a sealed interface that prevents moisture ingress while facilitating proper installation. The sealant acts as another intermediary substance that fills gaps and creates a waterproof barrier in the enclosed cavity.
2Ease of operation
If standard flashings and shingle cutting are used for roof penetration, then the junction box can be mounted, but installation complexity and costs increase
Solution Approach 1:
The patent incorporates a pre-designed mounting gasket and enclosed cavity structure into the junction box before installation. The sealant injection system is pre-configured with ports and pathways, allowing the sealing action to occur automatically during the mounting process rather than requiring separate flashing installation and shingle cutting steps.
Solution Approach 2:
The patent extracts the sealing function from the traditional flashing system and integrates it directly into the junction box structure through the mounting gasket and enclosed cavity. This eliminates the need for separate flashing components and complex roof penetration procedures, simplifying the overall installation process.
Data Source
AI summary
An electrical junction box mount apparatus including a base for mounting to a mounting surface and a lid sized to seal against the base. The base includes a mounting portion having a penetration area. A periphery of the penetration area is circumscribed via a groove formed into a bottom surface of the base such that upon placing the base on a mounting surface, the groove encloses empty space within the groove against the mounting surface.