Recessed Troffer With Sealed Door Assembly
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Solution Overview
Problem
Existing recessed light fixtures in drop ceilings often lack efficient light distribution and sealing mechanisms, leading to suboptimal lighting and potential moisture ingress.
Innovation Solution
A recessed light fixture design featuring a housing with adjustable wing hangers for level mounting, a reflector assembly for directed light output, and a door assembly with a gasket and lens for sealing and water-tight protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a recessed light fixture is installed in a drop ceiling without a sealing mechanism, then the installation is simple and the housing is easily accessible, but moisture can ingress into the housing causing damage
Solution Approach 1:
The door assembly is segmented into distinct functional components: a door assembly for access, a gasket for sealing, and a lens for light transmission. This segmentation allows each component to perform its specific function effectively while maintaining overall system reliability against moisture ingress.
Solution Approach 2:
The gasket acts as an intermediary element between the door assembly and the housing, creating a sealed interface that prevents moisture ingress without requiring complex integration of sealing mechanisms into the main housing structure.
2Reliability
If a door assembly with gasket and lens is added to the housing, then sealing and water-tight protection are achieved, but the device complexity increases
Solution Approach 1:
The door assembly merges multiple functions into a single integrated component: it provides access to the housing interior, creates a water-tight seal through the gasket, and allows light transmission through the lens. This consolidation reduces the number of separate parts needed while achieving multiple protective functions.
Solution Approach 2:
The door assembly serves multiple purposes simultaneously: it acts as a protective barrier against moisture, provides access for maintenance of internal components, and maintains optical functionality through the lens. This multi-functionality reduces overall device complexity by eliminating the need for separate components for each function.
3Ease of operation
If the housing is recessed within the drop ceiling, then the light fixture is concealed and aesthetically pleasing, but access to internal components for maintenance becomes difficult
Solution Approach 1:
The door assembly is designed to be readily removable from the recessed position, allowing preliminary access to internal components before maintenance activities begin. This preliminary action of removing the door assembly facilitates easy maintenance while maintaining the aesthetic recessed appearance during normal operation.
4Adaptability or versatility
If wing hangers are used for mounting the housing, then adjustable orientation and level mounting are achieved, but the manufacturing complexity increases
Solution Approach 1:
The wing hangers provide dynamic adjustability for mounting the housing at various orientations and positions within the drop ceiling grid. This dynamic capability allows the fixture to be installed in different configurations while maintaining a relatively simple housing structure that does not require complex integrated mounting mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design achieves efficient light distribution with adjustable orientation and provides a sealed environment to prevent moisture ingress, enhancing both lighting performance and durability.
Implementation Method 1
a gasket positioned between the lens and the frame
Implementation Method 2
A reflector assembly is positioned in the housing. A light emitter is connected to the reflector assembly
Data Source
AI summary
A light fixture configured for securing to a support surface. The light fixture includes a housing, a tray connected to the housing, a plurality of reflectors connected to the tray, a plurality of light emitter boards, a control component positioned within the housing, and a door assembly releasably connected to the housing. The tray includes a series of base portions and a series of angled walls, wherein each angled wall extends from a base portion. Each reflector of the plurality of reflectors is connected to an angled wall of the tray. Each light emitter board of the plurality of light emitter boards is connected to a reflector, and the control component is operably connected to the plurality of light emitter boards. In addition, the door assembly includes a frame bordering a central opening, a lens positioned over the central opening, and a gasket positioned between the lens and the frame.