Surface Mount Luminaire Inset Electrical Components
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Solution Overview
Problem
Conventional surface mount luminaires face challenges in finding mounting space for electrical components due to their decreasing size and increasing electronic density, while also needing protection from environmental factors like moisture and water.
Innovation Solution
A surface mount luminaire design with a housing assembly that includes a light source housing and a housing cover, where electrical components are inset within the housing to save space and protected by gaskets, allowing for a low-profile installation without the need for a junction box and providing sealing against environmental elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If the size of enclosures (j-boxes) is reduced, then cost is decreased, but mounting space for electrical components becomes insufficient
Solution Approach 1:
The electrical components are nested within the housing assembly itself, specifically in the outer cavity formed by the light source housing. The housing cover encloses this cavity to protect the components. This integration eliminates the need for separate external j-boxes while providing adequate mounting space within the luminaire structure.
2Volume of stationary object
If the size of enclosures is reduced, then cost is decreased, but protection from environmental factors becomes compromised
Solution Approach 1:
Gaskets are used to create flexible sealing barriers between the housing cover and light source housing. These gaskets provide effective protection against moisture and water infiltration while allowing for manufacturing tolerances and thermal expansion, maintaining reliability without requiring oversized enclosures.
3Ease of operation
If electrical components are mounted externally in separate boxes, then mounting space is sufficient, but device complexity increases
Solution Approach 1:
The housing assembly merges multiple functions into a single integrated structure: the light source housing provides structural support and defines mounting cavities, the housing cover encloses and protects electrical components, and gaskets provide sealing. This consolidation reduces the number of separate components (eliminating external j-boxes) while maintaining adequate mounting space and environmental protection.
Data Source
AI summary
A surface mount luminaire includes a housing assembly formed by a light source housing and a housing cover that are removably coupled to each other. The light source housing includes a recessed structure that defines an inner cavity. The inner cavity houses a lighting assembly that is configured to emit light to an area that is to be illuminated. Further, the light source housing defines a second cavity that is disposed external to and around the recessed structure. The second cavity is enclosed by the housing cover and houses electrical components associated with the luminaire such that the electrical components are inset within the housing assembly of the luminaire. Further, the luminaire includes one or more gaskets that are coupled to the housing assembly to provide a seal that is configured to protect the one or more components disposed in the second cavity from environmental elements.