Acorn Luminaire Heat Transfer Plate and Removable LED Module
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Solution Overview
Problem
Implementing LED-based illumination in acorn style luminaires is challenging due to issues such as re-lamping, maintenance, internal construction, power supply, and heat dissipation, which are not effectively addressed in traditional designs.
Innovation Solution
The design incorporates a heat transfer plate made of conductive materials like aluminum, which supports an LED board and allows for efficient heat dissipation by transferring heat radially outward, while maintaining the acorn style form and ensuring proper illumination characteristics with minimal uplight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If LED based illumination devices are incorporated into acorn style luminaires, then energy efficiency and longevity are improved, but heat dissipation becomes problematic
Solution Approach 1:
The patent extracts the heat dissipation function from the traditional acorn luminaire structure by introducing a separate heat sink assembly that can be removed independently from the globe portion. This allows the LED module to be replaced without removing the entire luminaire, and the heat sink can be serviced separately, resolving the contradiction between LED energy efficiency and heat management challenges.
Solution Approach 2:
The luminaire is segmented into distinct functional modules: a removable globe portion containing the LED module, a separate heat sink assembly, and a mounting structure. This segmentation allows each component to be optimized independently - the globe for light distribution, the heat sink for thermal management - while maintaining overall system functionality and ease of maintenance.
2Duration of action of stationary object
If LED based illumination devices are incorporated into acorn style luminaires, then operational lifespan is improved, but maintenance and re-lamping become problematic
Solution Approach 1:
The LED module is extracted as a separate, removable unit from the globe portion, allowing it to be replaced without disassembling the entire luminaire or dealing with heat sink complications. This maintains the long operational lifespan of LEDs while making maintenance as simple as removing and replacing a module, similar to traditional bulb changes.
Solution Approach 2:
The patent introduces dynamic, removable connections between the LED module and the globe/heat sink assembly, replacing fixed installations. This allows the LED module to be easily accessed, removed, and replaced, transforming the static, difficult-to-service traditional design into a dynamic, maintainable system that preserves LED longevity benefits.
3Shape
If traditional acorn style luminaire construction is used, then aesthetic integrity is maintained, but internal construction does not accommodate LED components
Solution Approach 1:
The patent adds a new dimensional layer to the traditional acorn design by introducing a modular internal construction system that fits within the existing external form. The removable globe portion and heat sink assembly create a third dimension of accessibility and modularity, allowing LED components to be accommodated without altering the classic acorn silhouette, thus maintaining aesthetic integrity while enabling modern manufacturing capabilities.
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
This solution enables efficient heat dissipation and high photometric performance with less than two percent uplight, ensuring the LED luminaires operate effectively and maintain aesthetic integrity, addressing the challenges of integrating LEDs into acorn style luminaires.
Implementation Method 1
a heat transfer plate made of conductive materials like aluminum, which supports an LED board and allows for efficient heat dissipation by transferring heat radially outward
Data Source
AI summary
A conventional acorn style globe is described incorporating the utilization of LED's as an illumination source. A supporting heat dissipation plate is provided which extends to the exterior periphery of the acorn style luminaire allowing heat to transfer from the LED's directly to the exterior of the acorn style luminaire while maintaining the integrity of an acorn style globe construction. A plurality of individually orientable lenses on each of the LED's positioned within the interior of the globe allow for efficient downlight and desirable optical characteristics. Interior access may be provided through removal of the globe top to thereby provide accessibility to the LED board mounted on the heat transfer plate.