Driver-less Recessed Lighting Fixture Power Sharing
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Solution Overview
Problem
Existing lighting solutions face challenges in sharing a single driver among multiple luminaires and managing heat efficiently, which limits the reduction in size and efficiency of drivers due to higher temperatures on the back side of installed luminaires.
Innovation Solution
A system where a driver-less lighting fixture receives power from a second recessed lighting fixture via an electrical cable, with the driver positioned on the ambient side to improve heat management and eliminate the need for a dedicated driver and electronics compartment in each fixture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dedicated driver is installed in each luminaire on the back side, then each luminaire can operate independently, but the driver size cannot be reduced and heat management becomes difficult due to higher temperatures on the back side
Solution Approach 1:
Multiple luminaires are electrically connected in parallel through wiring channels formed by adjacent fixtures, allowing them to share common power supply lines and reduce individual driver requirements. The housing structures of adjacent luminaires are integrated to create shared wiring pathways, merging previously separate electrical systems into a coordinated network.
Solution Approach 2:
The wiring channels are formed by utilizing the vertical and lateral spaces between adjacent luminaires installed in a ceiling array. Instead of routing wires through the limited back-side space of individual fixtures, the system uses the three-dimensional space created by the arrangement of multiple luminaires, forming channels that extend between and around adjacent units.
2Ease of operation
If a dedicated driver is installed in each luminaire, then each luminaire is self-contained, but the overall system cost and complexity increase
Solution Approach 1:
The housing structure serves multiple functions: it provides mechanical support for the luminaire components, contains internal wiring channels for electrical connections, and forms part of the shared wiring infrastructure when adjacent luminaires are installed together. This multi-functionality eliminates the need for separate dedicated wiring channels in each fixture.
Solution Approach 2:
The electrical connection system is segmented into modular units where each luminaire maintains its own driver and light source components, while the wiring infrastructure is divided into shared channels that can be independently configured and maintained. This segmentation allows for easier troubleshooting and replacement of individual components.
3Volume of stationary object
If wiring channels are formed between adjacent luminaires, then wiring space is optimized, but the luminaires must be installed in specific configurations
Solution Approach 1:
The wiring channel configuration is designed to be adaptable to different installation patterns. The housing structures include flexible wiring pathways that can be routed to accommodate various luminaire arrangements, allowing the system to transition between different installation configurations while maintaining efficient wire management.
Data Source
AI summary
A driver-less lighting fixture includes a housing designed to be recessed in a ceiling when the driver-less recessed lighting fixture is installed in the ceiling. The driver-less lighting fixture further includes a light source positioned on an ambient side of the housing to provide an illumination light to an area. The driver-less lighting fixture also includes a connector attached to the housing. The light source is electrically coupled to the connector to receive a power from a driver of a second recessed lighting fixture via an electrical cable coupled to the connector. The connector is positioned such that the connector is hidden from view from below the ceiling when the driver-less recessed lighting fixture installed in the ceiling.