LED Light Source Thermal Management via Conductive Mask
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Solution Overview
Problem
Conventional LED lamps face inefficiencies in heat dissipation due to poor thermal conductivity of porous materials used in their bases, leading to reduced light emission efficiency and shorter service life.
Innovation Solution
The integration of a heat conducting mask or pipe with high thermal conductivity, fabricated from materials like aluminum or copper, which contacts the porous base and light emitting device, enhancing heat dissipation through increased surface area contact and air convection channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the LED is disposed on a surface of a base fabricated by a porous material, then the structure is simple and easy to manufacture, but the heat dissipation effect is limited due to poor thermal conductivity
Solution Approach 1:
The invention combines porous material (for light diffusion and structural properties) with heat conducting material (for thermal management) in a composite structure. The base is made of porous material while a separate heat conducting component (mask or pipe) is integrated to address the thermal conductivity limitation, creating a multi-material system that leverages the advantages of each material.
Solution Approach 2:
The heat conducting mask or pipe acts as an intermediary component between the LED light emitting device and the porous base. This intermediate structure facilitates heat transfer from the LED to the base, overcoming the poor thermal conductivity of the porous material while maintaining the structural simplicity and ease of manufacture.
2Reliability
If a heat conducting mask or pipe is integrated with high thermal conductivity material, then the heat dissipation efficiency is improved, but the device structure becomes more complex
Solution Approach 1:
The heat conducting mask serves multiple functions: it conducts heat away from the LED, provides a mounting surface for the LED, and can be integrated with the porous base structure. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity while achieving improved heat dissipation efficiency.
3Shape
If the heat is concentrated at an upper portion of the base, then the porous material structure is maintained, but the service life of the LED is reduced
Solution Approach 1:
The invention extracts the heat conduction function from the porous base material and assigns it to a dedicated heat conducting component (mask or pipe). This separation allows the porous material to maintain its structural integrity and light diffusion properties while the heat conducting component handles thermal management, preventing heat concentration that would reduce LED service life.
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 configuration effectively distributes and dissipates heat generated by LEDs, maintaining their operational efficiency and extending their service life by improving thermal management.
Implementation Method 1
a heat conducting mask which covers a top of the base, and contacts a portion of surface of the top of the base
Implementation Method 2
the LED is disposed on a surface of a base fabricated by a porous material, so that the heat can be absorbed by the base
Implementation Method 3
a fan is disposed at the second end of the first diversion pipe
Data Source
AI summary
A light source device having a good heat dissipation capability is disclosed, in which heat generated by a light emitting device is conducted to a base fabricated by a porous material through a heat conducting mask or a heat conducting pipe. Due to a large area contact between the heat conducting mask or the heat conducting pipe and the base, the heat can be evenly conducted to the base, so that the base can absorb the heat and dissipate the heat to external, so as to improve a heat dissipation efficiency. Moreover, in the light source device of the disclosure, heat exchange of the light emitting device can be directly carried on through air convection, so that the heat generated by the light emitting device can be taken away from the light source device through heat exchange of cool air.