Modular Convertible Lighting Fixture Design
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Solution Overview
Problem
Wide area lighting fixtures are costly to maintain and upgrade due to the need for complete replacement of light sources and associated electronics, especially with advancements in high-efficiency technologies like LEDs, which requires significant labor and materials.
Innovation Solution
A modular convertible lighting fixture design with a three-compartment configuration that allows for easy replacement and upgrading of light sources and power electronics without removing the fixture from its location, featuring thermal isolation and protection from foreign materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If complete replacement of light sources and associated electronics is performed, then lighting fixture can be upgraded to new technology, but labor and material costs increase significantly
Solution Approach 1:
The lighting fixture is divided into separate modular compartments: a first compartment containing the light source and a second compartment containing the power supply. This segmentation allows independent replacement of each module, enabling technology upgrades without complete fixture replacement and significantly reducing maintenance labor and material costs.
2Device complexity
If light source and power electronics are integrated in single housing, then device complexity is reduced, but maintenance and upgrading become difficult
Solution Approach 1:
The fixture separates light source and power electronics into different removable compartments with independent access. This allows technicians to replace individual components without disassembling the entire fixture, dramatically improving ease of repair and maintenance while maintaining manageable structural complexity.
3Ease of repair
If fixture is removed from location for maintenance, then component replacement can be performed, but labor time and complexity increase
Solution Approach 1:
The light source and power supply are extracted as separate removable modules that can be accessed and replaced in-place without removing the entire fixture from its mounting location. This extraction design eliminates the time-consuming process of complete fixture removal and reinstallation, reducing maintenance time while improving component accessibility.
4Device complexity
If heat is not isolated from light source, then device complexity is reduced, but reliability decreases due to thermal damage
Solution Approach 1:
Heat-generating components are extracted into a separate power supply compartment isolated from the light source compartment. This spatial extraction provides inherent thermal management, protecting sensitive components from thermal damage and improving reliability without requiring complex active cooling systems.
5Ease of manufacture
If compartment is not isolated from light source, then manufacturing is simplified, but protection from foreign materials is reduced
Solution Approach 1:
The fixture uses segmented removable compartments with seals that isolate the light source from foreign materials while maintaining straightforward manufacturing processes. The compartmentalized design provides protection against foreign object damage without requiring complex manufacturing steps.
Data Source
AI summary
A convertible lighting fixture includes a first housing defining a first compartment and a second housing defining a second compartment and movably attached to the first housing. The lighting fixture further includes a mounting plate attached to the second housing, a light source attached to the mounting plate and electrically connected to a power source disposed within the first compartment, and a cover substantially surrounding the light source. In at least one embodiment, the lighting fixture includes a wire harness configured to electrically connect the power source with the light source, wherein the wire harness includes a plurality of wires, a harness jacket surrounding the plurality of wires, and a sealant disposed within the harness jacket, wherein the sealant at least partially fills voids within the harness jacket and prevents liquids from translating through the wire harness.