Adjustable Ceiling Lighting Junction Box Assembly
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Solution Overview
Problem
The installation of recessed lighting is complicated by the need for separate components, including a recessed ceiling lighting housing and a fire-rated drywall box, which requires additional space and increases complexity, especially when combined with traditional junction boxes.
Innovation Solution
A compact junction lighting box that integrates both the lighting housing and electrical junction box requirements in a single unit, featuring a cylindrical form with flat inset facets for knock-outs, allowing for easier installation and eliminating the need for a separate drywall cavity, and includes adjustable mounting assemblies for versatile ceiling fitting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate recessed lighting housing and fire-rated drywall box are used, then fire-rated protection is provided, but device complexity and space requirements increase
Solution Approach 1:
The patent combines the recessed lighting housing and electrical junction box into a single integrated unit. The housing itself is designed to serve as both the structural support for the lighting fixture and the electrical junction box for wiring connections, eliminating the need for separate components and reducing installation complexity while maintaining fire-rated protection.
Solution Approach 2:
The housing is designed with multi-functionality, serving simultaneously as the structural support for the lighting fixture, the electrical junction box for wiring connections, and the fire-rated protective enclosure. This universal design allows a single component to fulfill multiple functions that traditionally required separate elements.
2Reliability
If a separate recessed lighting housing and fire-rated drywall box are used, then fire-rated protection is provided, but the space required for installation increases
Solution Approach 1:
The patent combines the recessed lighting housing and electrical junction box into a single integrated unit. The housing itself is designed to serve as both the structural support for the lighting fixture and the electrical junction box for wiring connections, eliminating the need for separate components and reducing installation complexity while maintaining fire-rated protection.
3Ease of operation
If traditional separate junction boxes are used, then wiring connections are provided, but device complexity and installation time increase
Solution Approach 1:
The patent combines the recessed lighting housing and electrical junction box into a single integrated unit. The housing itself is designed to serve as both the structural support for the lighting fixture and the electrical junction box for wiring connections, eliminating the need for separate components and reducing installation complexity while maintaining fire-rated protection.
Data Source
AI summary
A lighting junction box assembly includes a lighting junction box housing having a body with a partially cylindrical sidewall, a closed end, and a circular opening opposite the closed end, and flat inset facets with knock-out holes formed on the sidewall. A pair of bracket assemblies attaches the lighting junction box housing in a vertically adjustable position onto hanger bars fixed between ceiling joists. The adjustable vertical position provides for use and mounting in ceilings of various thicknesses. The bracket assemblies provide the ability to adjust the vertical position of the lighting junction box housing during installation by a simple fastener inside the junction box which may be tightened without the use of tools. This capability is accomplished by the use of a carriage bolt which may be vertically positioned in a slot in the bracket.