Retrofit Kit for Drop Ceiling Troffer Lighting Fixtures
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Solution Overview
Problem
The variability in sizes, depths, and configurations of troffer lighting fixtures has hindered the development of a standardized kit to retrofit these fixtures with solid-state lighting sources, such as LEDs, making maintenance and upgrades costly and time-consuming, and potentially risky due to asbestos exposure.
Innovation Solution
A retrofit kit comprising adapter brackets and a door-light assembly with a reflector assembly, solid-state lighting sources, control electronics, and pivotable and latchable components that can be securely attached to existing troffer lighting fixtures, allowing for easy upgrade and maintenance while maintaining a uniform appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a standardized retrofit kit is developed for troffer lighting fixtures, then ease of manufacture and installation is improved, but the variability in fixture sizes, depths, and configurations makes standardization difficult
Solution Approach 1:
The retrofit kit is designed with universal adapter brackets that can accommodate multiple fixture types (2x2, 2x4, 4x4 troffers) through adjustable mounting mechanisms. The door-light assembly can be configured for different depths and orientations, allowing a single standardized kit to serve multiple fixture configurations while maintaining ease of manufacture
Solution Approach 2:
The adapter brackets incorporate adjustable parameters such as mounting hole positions, bracket lengths, and door-light assembly depths that can be modified to match different fixture specifications. This allows the standardized kit to adapt to various fixture sizes and configurations without requiring complete redesign for each type
2Ease of repair
If access to the recessed portion of the fixture is required for maintenance, then repair capability is improved, but exposure to airborne asbestos particles increases
Solution Approach 1:
The door-light assembly acts as an intermediary mechanism that provides access to the recessed portion without requiring complete disassembly. The pivotable door allows maintenance personnel to access lamp sockets and components through a controlled opening rather than removing the entire fixture cover, reducing exposure to asbestos-containing materials in the ceiling plenum
Solution Approach 2:
The fixture access mechanism is segmented into modular components (door frame, pivot hinges, latching mechanism) that allow selective opening of only the necessary portion. This segmentation enables maintenance personnel to access specific components like lamp sockets without exposing themselves to the entire recessed space where asbestos particles may be present
3Use of energy by moving object
If fluorescent lighting fixtures are replaced with LED technology, then energy efficiency and operational lifetime are improved, but the cost and complexity of retrofitting increases
Solution Approach 1:
The retrofit kit merges the adapter brackets, door-light assembly, LED light sources, and control electronics into an integrated unit. This combination simplifies the retrofit process by pre-assembling multiple components that work together, reducing the complexity of installation while achieving energy efficiency benefits of LED technology
Solution Approach 2:
The door-light assembly incorporates self-contained control electronics and pre-mounted LED sources that require minimal external wiring or configuration. The integrated design allows the retrofit kit to be installed as a self-sufficient unit, reducing the complexity of electrical connections and system integration while delivering energy-efficient LED performance
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 efficient and safe upgrading of troffer lighting fixtures to LED technology, reducing maintenance costs and risks associated with asbestos exposure, while providing a standardized solution for diverse fixture configurations.
Implementation Method 1
at least one solid state lighting source mounted to the at least one light source mounting surface
Implementation Method 2
The reflector assembly includes a first surface for securing at least one hinge to the reflector assembly, a second surface for securing at least one latch to the reflector assembly, and at least one light source mounting surface
Data Source
AI summary
A retrofit kit for drop ceiling lighting fixtures and a method of retrofitting drop ceiling lighting fixtures are provided. The retrofit kit includes a pair of adapter brackets configured to be mounted to opposing sides of a drop ceiling fixture, and a door-light assembly configured to be pivotally coupled to one adapter bracket, and to be latched to the other adapter bracket.