Transparent Heat Conductive Polymer for LED Thermal Management
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Solution Overview
Problem
Conventional LED light sources face challenges with heat management, leading to high costs, poor aesthetics, and inability to match the form factor of traditional incandescent bulbs, resulting in inefficient light output and short lifespan.
Innovation Solution
Incorporating a transparent or translucent heat conductive material that surrounds the LEDs, eliminating the need for conventional heat sinks, allowing for efficient heat transfer and matching the form factor of incandescent bulbs while providing aesthetically pleasing designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional metal heat sinks are used to manage LED heat, then heat management effectiveness is improved, but manufacturing cost increases significantly
Solution Approach 1:
The patent changes the material parameter from conventional metal to transparent heat conductive polymer, fundamentally altering the heat sink's properties to achieve both effective heat management and cost reduction through simplified manufacturing processes
Solution Approach 2:
The invention uses composite material structures combining transparent heat conductive polymers with LED components, creating an integrated heat management system that eliminates the need for separate metal heat sinks while maintaining thermal performance
2Temperature
If large finned heat sink structures are used, then heat dissipation capability is improved, but form factor compatibility with traditional light sockets deteriorates
Solution Approach 1:
The patent changes the physical state and optical properties of the heat management material to transparent and thermally conductive, enabling the heat sink to be integrated into bulb-shaped forms that match traditional socket dimensions while maintaining effective heat dissipation
Solution Approach 2:
The transparent heat conductive polymer serves multiple functions simultaneously: it acts as the heat sink structure, provides electrical insulation, and maintains the traditional bulb form factor, eliminating the need for separate components
3Temperature
If conventional metal heat sink structures are used, then heat management is improved, but aesthetic appearance deteriorates
Solution Approach 1:
The patent changes the optical parameter of the heat management material from opaque metal to transparent polymer, allowing the heat sink to be visually integrated into the bulb design and eliminating the bulky, unsightly metal structures of conventional LEDs
4Productivity
If LEDs operate at high energy levels to increase lumen output, then light output is improved, but heat generation increases causing reduced lifespan
Solution Approach 1:
The patent changes the thermal conductivity parameter of the surrounding material to high levels, enabling efficient heat removal from the LED junction even at high power operating levels, thus allowing increased lumen output without compromising lifespan
Solution Approach 2:
The transparent heat conductive polymer acts as an intermediary thermal management layer between the LED and the surrounding environment, facilitating efficient heat transfer that enables high-power operation while protecting the LED from thermal damage
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 high lumen output, reduced production costs, and improved heat management, allowing LEDs to operate at higher energy levels, effectively replacing traditional incandescent bulbs with enhanced performance and appearance.
Implementation Method 1
Incorporating a transparent or translucent heat conductive material that surrounds the LEDs, eliminating the need for conventional heat sinks, allowing for efficient heat transfer
Data Source
Figure 1A
Figure 1B~1C
Figure 2
AI summary
Example embodiments of the present invention provide a LED light source (200) with an effective and efficient heat management system. For example, embodiments of the present invention include devices, systems, materials, and methods to effectively transfer heat away from LEDs (208) used in an LED light source to produce an LED light source that has high lumen output compared to conventional LED light sources. In particular, example embodiments of the present invention provide an LED light source that includes a transparent or translucent heat conductive material (210) in which the LEDs are embedded.