Light Source Device Airflow Configuration for Temperature Uniformity
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Solution Overview
Problem
Existing light source devices struggle to equalize the temperatures of multiple light emitting elements, leading to uneven light outputs due to inadequate cooling configurations.
Innovation Solution
The light source device incorporates a housing with a unique air flow configuration, including a first intake port, an exhaust port, and secondary intake ports in the side surfaces, which allows for efficient air circulation and temperature equalization among the light emitting elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If an intake port and exhaust port are provided at opposite ends of the housing to cool the light emitting elements, then cooling is achieved, but the light emitting element at one end is cooled to a greater extent than the other end, resulting in unequal light outputs
Solution Approach 1:
The housing is divided into multiple cooling zones with separate intake ports and exhaust ports positioned at different locations. This segmentation allows independent control of air flow paths to cool different sections of the housing, ensuring uniform temperature distribution across all light emitting elements without requiring a single complex cooling system
Solution Approach 2:
Different regions of the housing are equipped with different cooling characteristics by positioning intake and exhaust ports at specific locations. Each light emitting element receives customized cooling based on its local heat generation and position, achieving uniform temperature across the entire array while maintaining a relatively simple overall structure
2Temperature
If a side surface intake port is added between the ends to improve cooling distribution, then temperature equalization improves, but the number of ports and channels increases
Solution Approach 1:
Multiple cooling functions are merged into a unified housing structure where intake ports and exhaust ports are integrated directly into the housing walls. The air flow paths are combined and optimized to pass through multiple light emitting elements sequentially, achieving temperature equalization while minimizing the number of separate components and channels
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 effectively reduces temperature gradients among the light emitting elements, ensuring consistent light outputs and improving the overall cooling efficiency of the device.
Implementation Method 1
an intake port and an exhaust port are respectively provided in one end and the other end of the predetermined direction in the housing, to cool the plurality of light emitting elements
Implementation Method 2
an intake port is provided in a side surface between the one end and the other end in the housing and an exhaust port is provided in the other end of the housing, to cool the plurality of light emitting elements
Data Source
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AI summary
A light source device includes a housing having a great length along a predetermined direction, a plurality of light emitting elements which are placed in the housing and are arranged along the predetermined direction, and one or more heat dissipation members which are placed in the housing and are thermally connected with the light emitting elements. A first intake port through which air is sucked into the housing is provided in one end in the housing. An exhaust port through which air is discharged to an outside is provided in the other end in the housing. A space where the other side in the predetermined direction faces the heat dissipation member is formed in the housing. A second intake port through which air is sucked into the space from the outside is provided in a side surface between the first intake port and the exhaust port in the housing.