Roof Tile Junction Box Flashing for Single-Tile Installation
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Solution Overview
Problem
Existing junction boxes for outdoor use face challenges in installation due to the need to compensate for the difference in angles between the tile surface and the sub-tile surface, which increases complexity and risk during installation.
Innovation Solution
A junction box design that includes a flashing and a housing box, where the flashing is configured to be positioned proximate a tile surface and the housing box is designed to attach to a sub-tile surface, allowing for compensation of angle differences and facilitating quicker installation by replacing a tile and using a single tile removal site.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the junction box is designed to attach to both tile surface and sub-tile surface, then the installation versatility is improved, but the device complexity increases due to the need to compensate for angle differences
Solution Approach 1:
The housing box is designed with a tiltable expose portion that can be positioned at different angles relative to the recess portion. This dynamic angular adjustment capability allows the junction box to adapt to different tile surface angles while maintaining a simple attachment mechanism to the sub-tile surface, thus improving versatility without significantly increasing complexity
Solution Approach 2:
The housing box is divided into distinct functional portions: the recess portion for attachment to the sub-tile surface and the expose portion for tile surface integration. This segmentation allows each portion to be optimized independently - the recess portion provides stable attachment while the expose portion handles angular adaptation, resolving the contradiction between versatility and complexity
2Manufacturing precision
If the junction box requires compensation for angle differences between tile and sub-tile surfaces, then the installation precision is improved, but the ease of operation deteriorates due to increased installation complexity
Solution Approach 1:
The housing box is pre-configured with the tiltable expose portion and attachment mechanisms during manufacturing. This preliminary preparation of the angular compensation capability eliminates the need for complex field adjustments or custom fabrication, allowing installers to simply position and secure the unit, thus maintaining ease of operation while achieving precise angular adaptation
Solution Approach 2:
The tiltable expose portion acts as an intermediary element between the fixed recess portion (attached to sub-tile surface) and the tile surface. This intermediary provides the necessary angular adjustment capability, enabling precise installation without requiring complex operations from the installer
3Adaptability or versatility
If multiple tiles need to be removed for junction box installation, then the adaptability to different installation scenarios is improved, but the loss of time increases
Solution Approach 1:
The housing box is designed as a universal mounting solution that can be attached to the sub-tile surface and accommodate various tile surface configurations through its tiltable expose portion. This multi-functionality allows a single installation approach (removing one tile and attaching to sub-tile surface) to serve multiple installation scenarios, reducing installation time while maintaining adaptability
Data Source
AI summary
A junction box that includes a flashing configured to cover tiles of a roof of a structure and a housing box. The flashing includes a raised portion that includes a top edge and raised portion defines an opening. The housing box includes a recess portion, an expose portion extending from the recess portion, and a junction lip extending from the recess portion in a direction away from the expose portion. A recess between the junction lip and the recess portion defines a junction recess. At least a portion of the recess portion is configured to pass through the opening until at least a portion of the top edge extends into the junction recess.