T-bar for suspended ceiling with heat dissipation system for LED lighting
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Solution Overview
Problem
LED lighting in dropped ceilings generates concentrated heat near electronics, leading to reduced operational life and increased HVAC load, as existing solutions fail to effectively manage heat dissipation within the conditioned space.
Innovation Solution
A T-bar with integrated upper and lower heat sinks, including fins for enhanced natural convection, is designed to dissipate heat from LED lighting and other sources into the space above the ceiling, utilizing materials with high thermal conductivity to maximize heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If LED lighting is installed in dropped ceiling, then energy consumption is reduced and lighting efficiency is improved, but heat accumulates near electronics causing reduced operational life
Solution Approach 1:
The heat sink extracts heat from the LED lighting system by providing a separate thermal management structure that draws heat away from the electronics, allowing the LED to maintain lower operating temperatures and extend operational life while preserving energy efficiency benefits
Solution Approach 2:
The heat sink acts as an intermediary thermal management component between the LED light source and the surrounding environment, facilitating heat transfer from the electronics to the ambient air through convection and radiation, thereby protecting the LED from excessive heat accumulation
2Use of energy by stationary object
If LED lighting is installed in dropped ceiling, then power consumption is reduced, but heat is generated near conditioned space increasing HVAC load
Solution Approach 1:
The heat sink extracts harmful heat from the LED lighting system and dissipates it into the unconditioned space above the dropped ceiling, separating the heat source from the conditioned living space below and reducing the burden on HVAC systems
Solution Approach 2:
The heat sink directs heat dissipation into a different spatial dimension (the plenum space above the ceiling) rather than allowing heat to accumulate in the conditioned space below, effectively moving the thermal problem to an area where it does not impact comfort or HVAC loading
3Temperature
If heat sink is added to T-bar, then heat dissipation is improved, but device complexity increases
Solution Approach 1:
The heat sink is merged with the T-bar ceiling support structure, combining thermal management functionality with the existing structural element. This integration approach adds heat dissipation capability without requiring completely separate components, thereby limiting the increase in overall device complexity
Solution Approach 2:
The modified T-bar structure serves multiple functions: it provides structural support for the ceiling tiles and simultaneously acts as a heat sink for LED lighting. This multi-functionality reduces the need for additional dedicated heat dissipation components, maintaining relatively simple overall device complexity
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
The T-bar effectively transfers heat away from LED lighting and other sources, enhancing the operational life of lighting components, reducing HVAC load, and improving energy efficiency by minimizing heat accumulation in the conditioned space.
Implementation Method 1
designed to dissipate heat from LED lighting and other sources into the space above the ceiling
Implementation Method 2
utilizing materials with high thermal conductivity to maximize heat transfer
Data Source
AI summary
The T-bar includes an elongate rigid spine extending between terminal ends including either a fixed anchor or adjustable anchor for attachment to adjacent T-bars or other supports. An upper heat sink is provided on an upper portion of the spine to enhance heat transfer from the T-bar to air surrounding upper portions of the T-bar. A light housing is provided on a lower portion of the T-bar which is configured to support a lighting module therein, such as a light emitting diode (LED) light. A lower heat sink is provided above this light housing and integrated into a rest shelf which supports ceiling tiles adjacent the T-bar. A power supply is provided which can be removably attached to the T-bar and provide appropriately conditioned power for the lighting module.