Light Fixture Integrated Backup Power Driver
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Solution Overview
Problem
Existing light fixtures that provide illumination during power outages require dedicated backup wiring within buildings, increasing installation costs and labor, both during new construction and retrofitting.
Innovation Solution
Incorporating both an external power driver and a backup power driver within the light fixture housing, allowing the light engine to operate using either external power or a backup power supply, such as a battery, without the need for internal backup wiring, with the backup power driver capable of reducing intensity or changing light color during emergencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated backup wiring is installed within the building to provide illumination during power outages, then illumination reliability during emergencies is improved, but installation cost and labor complexity increase
Solution Approach 1:
The patent combines the backup power supply and backup driver into the light fixture housing, merging previously separate components (building backup power supply, dedicated backup wiring, and light fixture) into a single integrated unit. This eliminates the need for dedicated backup wiring runs through the building while maintaining emergency illumination capability.
Solution Approach 2:
The light fixture is designed with multi-functionality by incorporating both normal operation mode (using external power) and emergency operation mode (using integrated backup power supply). The same light fixture serves dual purposes: standard lighting during normal conditions and emergency lighting during power outages, eliminating the need for separate emergency lighting systems.
2Reliability
If existing light fixtures are retrofitted with backup power capability, then emergency illumination is provided, but wiring complexity and installation difficulty increase
Solution Approach 1:
The backup power supply and backup driver are integrated within the light fixture housing, combining multiple functions into a single unit. This integration eliminates the need for complex dedicated backup wiring connections during retrofitting, as the backup power system is self-contained within the fixture itself.
3Ease of manufacture
If a backup power supply is integrated within the light fixture housing, then dedicated backup wiring is eliminated, but the light fixture volume and weight increase
Solution Approach 1:
The patent merges the backup power supply, backup driver, and light fixture into a single integrated unit. By combining these components, the system eliminates the need for separate building-wide backup power infrastructure and dedicated wiring, thereby simplifying installation despite the increased volume of individual fixtures.
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
Enables illumination during power outages without the need for additional wiring, reducing installation costs and simplifying retrofitting, while ensuring continuous lighting with automatic transition between normal and emergency modes.
Implementation Method 1
The backup power supply may be a battery
Data Source
AI summary
A light fixture may include a light fixture housing defining an internal cavity. A light fixture may also include one or more light engines positioned within the internal cavity of the light fixture housing and designed to emit light for illumination. A light fixture may also include an external power driver positioned within the internal cavity of the light fixture housing and designed to receive power from an external power source, and provide power to and control the one or more light engines. A light fixture may also include a backup power supply positioned within the internal cavity of the light fixture housing, and a backup power driver positioned within the internal cavity of the light fixture housing and designed to receive power from the backup power supply, and provide power to and control the one or more light engines.