Magnetic LED Module Heat Conduction for Retrofit Fixtures
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Solution Overview
Problem
Existing LED lighting systems face challenges in efficiently dissipating heat without increasing the operating temperature, particularly in retrofitting scenarios where space constraints and attachment methods are limiting, leading to reduced power output and increased costs.
Innovation Solution
A light module with a heat-conducting structure made of ferromagnetic material that magnetically bonds to a heat-dissipating structure, allowing for effective heat transfer and secure attachment without the need for mechanical fasteners or adhesives, suitable for retrofitting existing fixtures with ferromagnetic enclosures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional mechanical fasteners or adhesives are used to attach LED modules to existing fixtures, then secure attachment can be achieved, but installation complexity and cost increase, and retrofitting becomes difficult
Solution Approach 1:
The patent replaces mechanical fastening systems (screws, clips, adhesives) with a magnetic attachment system. The LED module includes a magnet that directly attaches to the ferromagnetic enclosure of existing fixtures, eliminating the need for mechanical fasteners or surface preparation for adhesives. This substitution maintains secure attachment while dramatically simplifying installation and retrofitting processes.
Solution Approach 2:
The patent introduces a ferromagnetic material as an intermediary between the LED module and the fixture enclosure. This intermediary enables magnetic attraction without requiring direct mechanical connection or chemical bonding, allowing the LED module to be securely attached to any ferromagnetic surface through magnetic field interaction alone.
2Loss of energy
If the heat-dissipating structure is made larger to provide adequate heat transfer, then heat dissipation efficiency improves, but the device size increases and may not fit in restricted spaces
Solution Approach 1:
The patent merges the heat-dissipating structure with the existing fixture enclosure rather than adding a separate, bulky heat sink. The LED module is positioned to conduct heat directly to the enclosure walls, which serve dual purposes: structural containment and thermal management. This consolidation eliminates the need for additional volume while maintaining effective heat transfer.
Solution Approach 2:
The patent makes the fixture enclosure serve multiple functions simultaneously: it acts as both the structural housing and the heat-dissipating structure. By designing the LED module to conduct heat directly to the enclosure walls, the enclosure becomes a multi-functional component that provides both mechanical containment and thermal management without requiring separate dedicated heat sink structures.
3Illumination intensity
If the LED power output is increased to provide adequate lighting, then illumination intensity improves, but heat generation increases and becomes difficult to dissipate in constrained spaces
Solution Approach 1:
The patent extracts the heat dissipation function from a separate heat sink component and integrates it directly into the fixture enclosure structure. By positioning the LED heat-conducting structure in direct thermal contact with the enclosure walls, the system removes the intermediary heat sink that would add volume, allowing high power LEDs to be used without increasing device size.
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 secure attachment of LED modules in constrained spaces, maintaining optimal operating temperatures and reducing installation complexities and costs, while allowing for higher power output and longer LED lifespan.
Implementation Method 1
The heat-conducting structure includes a ferromagnetic material and is structured such that the heat-conducting structure bonds magnetically to a heat-dissipating structure with sufficient force to support the light module
Implementation Method 2
the heat-conducting structure that moves the heat from the LED dies to a second heat-dissipating structure that transfers the heat to the ambient environment
Data Source
AI summary
A light module and method for using the same are disclosed. The light module includes a heat-conducting structure and a plurality of LEDs bonded to a heat-conducting structure. The LEDs are bonded to a first surface of the heat-conducting structure and are mounted on the heat-conducting structure such that at least 50 percent of the heat generated by the LEDs is transferred to the heat-conducting structure. The heat-conducting structure includes a ferromagnetic material and is structured such that the heat-conducting structure bonds magnetically to a heat-dissipating structure with sufficient force to support the light module during the normal operation thereof when the light source is placed against the heat-dissipating structure. The present invention can be utilized for retrofitting an existing light fixture having an enclosure that includes a ferromagnetic material and a plurality of legacy light sources.