Light Source Device Heat Dissipation via Segmented Plate
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Solution Overview
Problem
Existing light source devices for projectors face challenges in efficiently releasing heat generated by light emitting devices, leading to fluctuations in light output due to temperature changes.
Innovation Solution
A light source device with a heat receiving plate and a heat diffusion member, where the heat receiving plate is fixed to the base member and the heat diffusion member is in contact with the base member, allowing for efficient heat transmission and release, potentially using a vapor chamber with a copper container and working fluid for enhanced heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single heat receiving plate is used to cool the light source unit, then the structure is simple, but the heat dissipation efficiency is insufficient
Solution Approach 1:
The cooling structure is divided into two separate components: a heat receiving plate that contacts the base member and a heat diffusion member that is inserted into the heat receiving plate. This segmentation allows each component to perform its specific function optimally - the heat receiving plate collects heat from the light source, while the heat diffusion member distributes and releases the heat to the surrounding environment, thereby improving overall heat dissipation efficiency without excessive complexity
Solution Approach 2:
The heat diffusion member extends into the heat receiving plate along the thickness direction, creating a three-dimensional heat dissipation pathway. This dimensional extension allows heat to be released not only from the surface of the heat receiving plate but also from the exposed surface of the heat diffusion member, effectively utilizing the thickness dimension to enhance heat dissipation capacity
2Area of stationary object
If the heat diffusion member has a larger shape than the opening portion, then heat is diffused in a wider area, but the structural fit becomes more complex
Solution Approach 1:
The heat diffusion member is divided into a first contact portion that contacts the base member and a second contact portion that contacts the heat receiving plate, with an intermediate section that transitions between them. This segmentation allows the heat diffusion member to achieve a larger overall area for heat diffusion while maintaining a manageable structural fit through the staged contact portions
Solution Approach 2:
The heat diffusion member is inserted into the heat receiving plate, with the heat diffusion member being partially contained within the heat receiving plate structure. This nesting arrangement allows the heat diffusion member to have a larger area than the opening portion while the heat receiving plate provides structural support and containment, simplifying the overall structural fit
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
The solution effectively prevents or suppresses high-temperature conditions in the light source unit, improving heat dissipation performance by about 10% and maintaining stable light output.
Implementation Method 1
heat from the light source unit is transmitted to the heat receiving plate and the heat diffusion member
Implementation Method 2
potentially using a vapor chamber with a copper container and working fluid for enhanced heat dissipation
Data Source
AI summary
A light source device has a light source unit including a base member and a plurality of light emitting devices held in the base member, a heat receiving plate including an opening portion, to which the base member is fixed to cover the opening portion, and a heat diffusion member in contact with the base member via the opening portion. Heat from the light source unit is transmitted to the heat receiving plate and the heat diffusion member.