Magnet-Based LED Mounting for Heat Dissipation
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Solution Overview
Problem
High-output LEDs generate significant heat during operation, requiring external heat sinks that increase the weight and size of lighting systems, which can be undesirable in compact applications.
Innovation Solution
A mountable LED lighting apparatus that uses a magnet to combine mounting and heat-sink functions, allowing effective heat dissipation while maintaining a small form factor, by directly affixing neodymium magnets to the LEDs via epoxy resins for thermal coupling and mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If external heat sinks are used to dissipate heat from high-output LEDs, then heat dissipation is improved, but weight and size increase
Solution Approach 1:
The patent combines the mounting function and heat dissipation function into a single magnetic component. The magnet serves dual purposes: providing magnetic attraction for mounting the LED assembly and acting as a heat sink through its thermally conductive structure that contacts the LED, thereby dissipating heat without requiring a separate heat sink component.
Solution Approach 2:
The magnetic component is designed to perform multiple functions simultaneously: it provides magnetic mounting capability, serves as a thermal management solution through heat dissipation, and structurally supports the LED assembly. This multi-functionality eliminates the need for separate mounting brackets and heat sinks, reducing overall system weight and complexity.
2Temperature
If external heat sinks are used to dissipate heat from high-output LEDs, then heat dissipation is improved, but size increases
Solution Approach 1:
The mounting structure and heat dissipation structure are merged into a single magnetic component. The magnet's body serves as both the mounting interface (through magnetic attraction) and the heat dissipation path (through thermal conduction from the LED), eliminating the need for separate heat sink structures and reducing overall assembly size.
Solution Approach 2:
The magnetic component is designed to perform multiple functions simultaneously: it provides magnetic mounting capability, serves as a thermal management solution through heat dissipation, and structurally supports the LED assembly. This multi-functionality eliminates the need for separate mounting brackets and heat sinks, reducing overall system size.
3Reliability
If multiple separate components are used for mounting and heat dissipation, then mounting and heat dissipation functions are achieved, but device complexity increases
Solution Approach 1:
The patent merges the mounting component and heat dissipation component into a single integrated magnetic assembly. The magnet provides both the magnetic attraction force for mounting and the thermal conduction path for heat dissipation, reducing the component count from multiple separate parts to a single unified structure.
Solution Approach 2:
The magnetic component is designed to perform multiple functions simultaneously: it provides magnetic mounting capability, serves as a thermal management solution through heat dissipation, and structurally supports the LED assembly. This multi-functionality eliminates the need for separate mounting brackets and heat sinks, reducing overall system 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
Enables the use of high-output LEDs in various applications, such as industrial and automotive settings, providing bright illumination without the need for separate lights or large heat sinks, while preventing overheating and thermal damage.
Implementation Method 1
a magnet to combine mounting and heat-sink functions
Implementation Method 2
allows effective heat dissipation while maintaining a small form factor, by directly affixing neodymium magnets to the LEDs via epoxy resins for thermal coupling and mounting
Data Source
AI summary
The present disclosure describes example magnetic LED lighting systems. A lighting apparatus in accordance with the present disclosure may include LEDs connected in series with a resistor. The LEDs are each coupled, directly or via thermal vias through a mounting element, to one or more magnets. The magnets may serve dual purposes: as a heat sink to dissipate heat and enable LEDs to be used, and as a mounting device to mount the lighting apparatus to a desirable location, such as on an automobile or an industrial machine. The dual-purpose magnets may eliminate the need for an additional heat sink element, thereby reducing weight and/or size of the lighting apparatus.