Miniaturized LED Driver for Flush Mount Junction Box Installation
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Solution Overview
Problem
Current LED downlights require large and expensive housings for new construction, often necessitating oversized installations and additional fire-rated coverings, which increase costs and labor requirements, especially when independent certification is needed for recessed plenum applications.
Innovation Solution
A miniaturized LED driver design that allows for installation into a 4-inch non-metallic or 4-inch octagon metal junction box, eliminating the need for a 6-inch housing, attached junction box, ceiling tile cut-outs, hanger bars, and costly certification approvals by mounting directly into an existing pre-wired recessed junction box.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a large housing is used for LED downlights, then the fixture can accommodate all components, but the installation cost and labor requirements increase
Solution Approach 1:
The patent extracts the junction box from the fixture housing, allowing the fixture to be mounted directly to an existing junction box. This eliminates the need for a large integrated housing that combines both junction box and fixture functions, thereby reducing material costs and installation complexity while maintaining all necessary electrical connection capabilities
Solution Approach 2:
The patent makes the fixture compatible with standard commercially available junction boxes, allowing the same fixture design to be installed in various locations without requiring custom housing sizes. This universal mounting approach reduces manufacturing complexity and installation labor across different application scenarios
2Volume of moving object
If a 6-inch housing is used, then all components fit, but oversized installation and additional fire-rated coverings are required
Solution Approach 1:
By removing the junction box from the housing integration, the patent enables use of smaller standard junction boxes (4-inch or smaller) that already exist in the building infrastructure. This eliminates the need for oversized 6-inch housings and associated fire-rated coverings, simplifying installation requirements while providing adequate space for LED components and drivers
Solution Approach 2:
Instead of making the housing large to accommodate the junction box, the patent inverts the approach by mounting the fixture to the junction box from the ceiling side. This allows the use of smaller, standard-sized junction boxes without requiring enlarged housings or additional fire-rated materials
3Adaptability or versatility
If independent certification is obtained for recessed plenum applications, then the fixture can be installed in plenum spaces, but the cost increases significantly
Solution Approach 1:
The patent designs the fixture with universal mounting compatibility for standard junction boxes that are already certified for various ceiling installations including plenum spaces. This allows the fixture to inherit the certification status of the junction box rather than requiring separate expensive plenum certification, maintaining versatility while reducing costs
4Ease of operation
If ceiling tile cut-outs are required, then the fixture can be recessed installed, but the labor and material costs increase
Solution Approach 1:
By extracting the junction box mounting function from the fixture housing, the patent enables direct attachment to existing junction boxes that are already installed in the ceiling. This eliminates the need for additional ceiling tile cut-outs and recessed installation procedures, reducing both labor time and material costs while maintaining proper electrical mounting practices
Data Source
AI summary
A flush mount fixture can be installed directly into a junction box in ceiling while still meeting safety standards such as fire safety stands and electrical standards. The fixture can be electrically powered directly from the power lines entering the junction box. The components and materials have been designed and selected specifically for installation into a junction box to thereby provide a flush mounted fixture. By meeting all required safety standards, the lighting fixture is easy and quick to install. No additional cans, hanger bars, or similar devices are needed. The fixture's trim is removably attached such that it can be pulled away and replaced by a similar trim piece having a different color or decorative appearance.