Retrofit Troffer Mounting System for LED Light Engine Installation
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Solution Overview
Problem
Existing troffer-style lighting systems face challenges in upgrading to LED sources, including the need for complete fixture replacement, which is time-consuming, costly, and requires licensed electricians, and current retrofit options may not fully capitalize on LED efficiency due to energy inefficiencies and labor-intensive installations.
Innovation Solution
A retrofit system that allows for the installation of LED light engines within existing troffer-style fixtures without penetrating the ceiling plenum, using a mechanical mounting system with mount adaptors and frames that can be easily assembled and installed without adhesives or fasteners, enabling quick and cost-effective upgrades while maintaining the existing troffer pan as a barrier to prevent dust and smoke spread.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If complete fixture replacement is performed to upgrade to LED sources, then lighting efficiency and energy savings are improved, but installation time, labor costs, and compliance requirements increase
Solution Approach 1:
The retrofit system divides the lighting upgrade into separate components: the existing troffer fixture remains in place while only the light source is replaced with an LED module. This segmentation allows the beneficial LED energy efficiency to be achieved without the need to replace the entire fixture, thereby reducing installation time and labor requirements while maintaining the original fixture infrastructure.
Solution Approach 2:
The invention extracts the light source component from the complete fixture assembly, allowing the LED module to be installed independently within the existing troffer. This extraction enables the upgrade to capture LED energy efficiency benefits while avoiding the time-consuming process of removing and replacing the entire fixture, thus resolving the contradiction between energy efficiency improvement and installation time reduction.
2Use of energy by moving object
If complete fixture replacement is performed, then LED efficiency is fully utilized, but the process requires licensed electricians and increases compliance costs
Solution Approach 1:
By segmenting the lighting system into replaceable modular components, the invention allows the LED light source to be upgraded independently from the electrical fixture infrastructure. This modular approach simplifies installation complexity by enabling non-electricians to perform the light source replacement while maintaining full LED energy efficiency, as the electrical connections remain within the existing certified fixture.
Solution Approach 2:
The existing troffer fixture acts as an intermediary that bridges the new LED technology with the existing electrical infrastructure. This intermediary allows the LED module to achieve full energy efficiency while the certified fixture handles the electrical compliance requirements, thereby reducing installation complexity and eliminating the need for licensed electricians to perform the upgrade.
3Adaptability or versatility
If the troffer pan is removed during upgrade, then complete fixture replacement can be performed, but dust and contamination may spread
Solution Approach 1:
The invention extracts the light source replacement process from the complete fixture demolition process. By removing only the necessary components for light source access while leaving the troffer pan intact, the system achieves upgrade flexibility without creating openings that would allow dust and contamination to spread, thus resolving the contradiction between upgrade adaptability and contamination risk.
Solution Approach 2:
The existing troffer pan serves as a preliminary protective barrier that prevents dust and contamination from spreading during the upgrade process. By maintaining this barrier intact during the light source replacement, the invention allows flexible upgrades to proceed while preemptively preventing the harmful effect of contamination, thus resolving the contradiction between upgrade flexibility and contamination risk.
4Strength
If traditional mounting methods with adhesives and fasteners are used, then secure attachment is achieved, but installation becomes labor-intensive and time-consuming
Solution Approach 1:
The invention replaces traditional mechanical mounting methods (adhesives and fasteners) with a spring-loaded clip mechanism that uses elastic mechanical force for attachment. This substitution maintains secure mounting strength while dramatically reducing installation time and labor requirements, as the spring clips can be quickly engaged and disengaged without the need for adhesive application or fastener installation, thus resolving the contradiction between mounting security and installation speed.
Data Source
AI summary
Lighting retrofit systems and methods are disclosed that can be used with different light fixtures, but that are particularly adapted for use with retrofitting troffer-style fixtures with LED based light engines. The retrofit systems being assembled without disturbing the lighting or troffer pan or housing (“troffer pan”) for the lighting system being retrofitted. Some of these embodiments can comprise a mounting fixture or frame that can be mounted in an opening in a ceiling grid, and held in place between the grid and the troffer pan edge. The fixture or frame can comprise an opening for a light engine, with the engine being quickly and easily connected to electrical power in the troffer pan and then mountable within the frame opening. These embodiments can allow for the quick and easy construction of the retrofit system without the need for adhesives and fasteners such brackets and screws.