Optical Engine Heat Dissipation Plate for Projector Thermal Management
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Solution Overview
Problem
Projectors face reliability issues due to increased internal temperature caused by off-state beams, which can shorten the service life of optical components.
Innovation Solution
An optical engine module with a housing and a plate, where the plate has a light receiving part for off-state beams and a heat dissipating part that extends out of the housing, improving heat dissipation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the off-state beam is allowed to stay in the housing, then the optical engine module structure is simple, but the internal temperature rises and reliability decreases
Solution Approach 1:
The patent extracts the heat dissipation function from the housing structure by adding a separate heat dissipation plate. The light receiving part absorbs off-state beams inside the housing, while the heat dissipating part extends outward to radiate heat away from the housing, effectively removing heat from the system without complicating the basic housing structure
Solution Approach 2:
The heat dissipating part extends in a direction away from the bottom wall, utilizing the external space dimension for heat dissipation. This allows heat to be dissipated outward from the housing rather than being confined within the internal space, effectively using spatial dimensionality to resolve the temperature issue
2Temperature
If a heat dissipation structure is added to the optical engine module, then heat dissipation improves, but the device complexity increases
Solution Approach 1:
The patent merges the light receiving function and heat dissipation function into a single integrated plate structure. The light receiving part and heat dissipating part form one component that performs both functions simultaneously, reducing the number of separate parts and simplifying the overall device structure while maintaining effective heat dissipation
Solution Approach 2:
The plate structure serves multiple functions: it absorbs off-state beams (light receiving part) and dissipates heat (heat dissipating part). This multi-functional design eliminates the need for separate components for each function, thereby improving heat dissipation without significantly increasing device complexity
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 enhanced heat dissipation reduces the internal temperature of the projector, improving the reliability and service life of optical components.
Implementation Method 1
The plate has a light receiving part and a heat dissipating part. The light receiving part is disposed in the off-state beam irradiation zone. The heat dissipating part passes through the bottom wall and extends out of the housing.
Implementation Method 2
The heat dissipating part extends in a direction away from the bottom wall, improving the heat dissipation of the optical engine module.
Data Source
AI summary
An optical engine module used in a projection device and configured to generate an image beam includes a housing and a plate. The housing has a surrounding side wall and a bottom wall connected to each other. The bottom wall has a first opening. The surrounding side wall has an off-state beam irradiation zone adjacent to the first opening. The first opening is configured to allow the image beam to exit. The off-state beam irradiation zone is configured to be irradiated by an off-state beam. The plate has a light receiving part and a heat dissipating part. The light receiving part is disposed in the off-state beam irradiation zone. The heat dissipating part passes through the bottom wall and extends out of the housing. A projection device adopting the optical engine module is also provided.