Adjustable Fire-Resistant Light Housing for Mixed Fixture Mounting
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Solution Overview
Problem
There is a need for a fire-rated light fixture that can contain fires within light fixtures and prevent fire spread from ceiling-mounted luminaires to floors below, while being compatible with various types of light fixtures.
Innovation Solution
An adaptable fire-resistant housing system comprising a steel junction box with an adjustable ring and adapter ring, allowing for attachment to both recessed and surface-mounted light fixtures, with a gasket for sealing and adjustable components to accommodate different ceiling heights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fire-rated housing is designed for recessed light fixtures, then fire containment capability is improved, but compatibility with surface-mounted light fixtures deteriorates
Solution Approach 1:
The housing is designed with a universal mounting system that can accommodate both recessed and surface-mounted light fixtures. The adjustable ring mechanism allows the same housing to adapt to different installation types, enabling one housing design to serve multiple functions and fixture types while maintaining fire containment capabilities.
Solution Approach 2:
The housing incorporates an adjustable ring that can be dynamically repositioned to accommodate different ceiling heights and fixture types. This dynamic adjustment capability allows the housing to transition between configurations for recessed and surface-mounted fixtures, providing versatility without compromising the fire-rated structure.
2Reliability
If the housing structure is made rigid for fire resistance, then fire containment is improved, but adaptability to different ceiling heights deteriorates
Solution Approach 1:
The housing incorporates an adjustable ring that can be dynamically repositioned to accommodate different ceiling heights and fixture types. This dynamic adjustment capability allows the housing to transition between configurations for recessed and surface-mounted fixtures, providing versatility without compromising the fire-rated structure.
Solution Approach 2:
The housing is divided into separate components including the main fire-rated structure and an adjustable ring mechanism. This segmentation allows the ring to be independently adjusted for different ceiling heights while the main housing structure maintains its rigid fire containment properties.
3Reliability
If a specialized fire-rated housing is designed for specific fixture types, then fire safety is improved, but device complexity increases
Solution Approach 1:
The housing is designed with a universal mounting system that can accommodate both recessed and surface-mounted light fixtures. The adjustable ring mechanism allows the same housing to adapt to different installation types, enabling one housing design to serve multiple functions and fixture types while maintaining fire containment capabilities.
Data Source
AI summary
Provided is an adaptable fire-resistant housing for a light fixture, comprising: a. a junction box made from steel, the junction box having an opening on a bottom configured to receive the light fixture; and b. an adjustable ring attached to the bottom of the housing, the adjustable ring having an opening configured to be attached to the light fixture or an adapter ring; wherein the light fixture or the adapter ring is attached to the adjustable ring.