| Summary: | 碩士 === 國立交通大學 === 工學院精密與自動化工程學程 === 105 === Even though the market for projectors is dominated by corporate customers, it has recently expanded to include household customers. Moreover, because of continued advances in integrated circuits and semiconductor technologies, miniaturized electronic components and projection technologies have enabled the growing use of micro projectors.
This study investigated heat-transfer designs for the air inlets and outlets of light-emitting diode micro projectors. Specifically, this study explored how to ensure the optimal air flow rates for inlets and outlets under forced convection generated by a built-in fan, identify the optimal positions for the inlets and outlets, and allow hot air to be removed efficiently from projectors. A portable electronic micro projector was used. This projector contained lithium batteries; aperture criteria for inlets and outlets were specified to satisfy the aperture requirements of the case. The heat-transfer design method and procedure demonstrated in this study can be used to improve the heat transfer characteristics of micro projectors, to reduce the cost of their development, and to simplify and expedite their development.
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