Optomechanical Module Heat Dissipation via Segmented Housing

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Solution Overview

Problem

Projectors face heat dissipation issues due to confined designs that prevent dust and moisture entry, leading to potential damage and aging of optical elements from high temperatures.

Innovation Solution

Incorporating an optomechanical module with a housing featuring heat-dissipation holes that allow airflow to dissipate heat generated by the light source, combined with a filter structure to prevent dust and moisture entry, and optionally using an internal or external fan for enhanced cooling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the projector uses a confined dust-proof design to prevent dust and moisture entry, then the protection of optical elements is improved, but the heat dissipation performance deteriorates

Engineering Contradiction:

Improveprotection of optical elementsVSAvoidheat dissipation

Core Design Contradiction:

ReliabilityVSTemperature

Solution Approach 1:

The housing is segmented into multiple functional regions: a dust-proof sealed chamber for optical elements, and a heat dissipation zone with heat-dissipation holes. This segmentation allows the optical elements to be protected from dust while enabling separate heat dissipation pathways away from the optical components.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A filter structure is introduced as an intermediary component in the heat-dissipation holes. This filter allows heat to dissipate through the holes while blocking dust and moisture from entering the optical chamber, thus mediating between the conflicting requirements of heat dissipation and dust protection.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If the projector uses a confined design to prevent dazzling light ray exposure, then the safety is improved, but the heat dissipation deteriorates

Engineering Contradiction:

Improvelight ray exposureVSAvoidheat dissipation

Core Design Contradiction:

Object-affected harmful factorsVSTemperature

Solution Approach 1:

Different parts of the housing have different functional qualities: the front housing portion contains light-blocking structures to prevent dazzling light exposure, while the rear housing portion contains heat-dissipation holes for thermal management. This local differentiation allows simultaneous achievement of safety and heat dissipation.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The heat dissipation function is moved to a different spatial dimension (rear housing) separate from the light containment function (front housing). This dimensional separation allows the housing to simultaneously block light in the forward direction while dissipating heat through the rear, resolving the conflict between safety and thermal management.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Illumination intensity

If the light source generates high brightness output, then the illumination performance is improved, but the heat generation increases

Engineering Contradiction:

Improvebrightness outputVSAvoidheat generation

Core Design Contradiction:

Illumination intensityVSTemperature

Solution Approach 1:

The heat generated by the high-brightness light source, which is normally a harmful byproduct, is converted into a manageable parameter through the heat-dissipation holes. The housing structure transforms the harmful heat accumulation into a controlled heat dissipation process, allowing high brightness output without compromising the optical elements.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

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

Effectively dissipates heat through both material and air convection, preventing damage to optical elements and maintaining performance while keeping the module dust-free.

Implementation Method 1

the at least one heat-dissipation hole is configured to allow airflow to pass through, so as to dissipate the heat generated by the light source

Methodology Applied

Scientific EffectAir convection: Convection

Implementation Method 2

the optomechanical module of the disclosure may dissipate heat not only by the material of the optomechanical housing itself

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS20220100065A1Optomechanical module and projector

Publication Date: 2022.03.31 CORETRONIC CORPORATION

AI summary

An optomechanical module, including an optomechanical housing, a light source, and a display element, is provided. The optomechanical housing includes at least one heat-dissipation hole. The light source is configured to emit an illumination beam and is disposed in the optomechanical housing. The display element is disposed in the optomechanical housing, is located on a transmission path of the illumination beam, and is configured to convert the illumination beam into an image beam. When the optomechanical module operates, the light source generates heat, and the at least one heat-dissipation hole is configured to allow airflow to pass through, so as to dissipate the heat generated by the light source. A projector is also provided.