Projection Light Source Module Ventilation Alignment

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Solution Overview

Problem

Conventional heat dissipation modules in projection devices are limited by optical path design, restricting the configuration of heat dissipation fins and fan flow, which hampers overall heat dissipation efficiency.

Innovation Solution

A light source module with a heat dissipation assembly featuring a first and second heat dissipation component, where the second component includes a ventilation opening aligned with the first fin set's ventilation surface, allowing airflow to flow through both components regardless of their orientation, eliminating the need for heat pipes and reducing volume and cost.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If multiple light sources with different emission wavelengths are equipped to improve image quality, then image quality is improved, but the position of each light source cannot be easily changed due to optical path design constraints, limiting heat dissipation fin configuration and overall heat dissipation efficiency

Engineering Contradiction:

Improveimage qualityVSAvoidheat dissipation efficiency

Core Design Contradiction:

Illumination intensityVSTemperature

Solution Approach 1:

The patent introduces a ventilation opening in the second base that is aligned with the first ventilation surface, creating a three-dimensional airflow path that allows air to flow through both heat dissipation components simultaneously. This dimensional approach to airflow routing enables independent positioning of multiple light sources while maintaining effective heat dissipation for each, resolving the conflict between optical path constraints and heat dissipation requirements

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Temperature

If conventional heat dissipation modules with heat pipes are used, then heat dissipation is achieved, but the device volume and manufacturing cost increase

Engineering Contradiction:

Improveheat dissipation capabilityVSAvoidvolume and cost

Core Design Contradiction:

TemperatureVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the heat pipe component from the heat dissipation system, replacing it with a direct airflow-through design where air passes through ventilation openings and fin structures. This removal of the heat pipe simplifies the device structure, reduces volume, and lowers manufacturing cost while maintaining effective heat dissipation capability through the simplified air-cooling mechanism

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the thermal conduction mechanism of heat pipes with a direct forced convection air cooling system. By using airflow to directly remove heat from light sources through ventilation openings and fin structures, the system substitutes a simpler mechanical air cooling approach for the more complex thermal pipe system, achieving the same heat dissipation function with reduced complexity

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 enhances heat dissipation efficiency without altering the existing optical path design or fan flow field, improving the durability and image quality of projection devices while reducing costs.

Implementation Method 1

a fan is usually arranged in the projection device to dissipate heat from the light source

Methodology Applied

Scientific EffectForced Convection: Forced Convection

Implementation Method 2

The conventional heat dissipation module includes a plurality of heat dissipation fin set and heat pipes respectively connected to the heat dissipation fin set to improve heat dissipation efficiency

Methodology Applied

Scientific EffectThermal Conduction: Conduction (thermal)

Implementation Method 3

The second surface faces the first ventilation surface. The ventilation opening penetrates the first surface and the second surface and is aligned with the first ventilation surface

Methodology Applied

Scientific EffectConvection: Convection

Data Source

PatentUS20240036449A1Light source module and projection device

Publication Date: 2024.02.01 CORETRONIC CORPORATION

AI summary

A light source module applicable to a projection device includes a heat dissipation assembly, a first light source, and a second light source. The heat dissipation assembly includes first and second heat dissipation components. The first heat dissipation component includes a first base and a first fin set. The first fin set has a first ventilation surface. The second heat dissipation component includes a second base and a second fin set. The second base has a first surface, a second surface and a ventilation opening. The first surface is opposite to the second surface. The second fin set is arranged on the first surface. The second surface faces the first ventilation surface. The ventilation opening penetrates the first and second surfaces and is aligned with the first ventilation surface. The first light source is arranged on the first base. The second light source is arranged on the second base.