Light Source Cooling with Angled Deflector Plate
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Solution Overview
Problem
Existing light source devices struggle with non-uniform cooling of light emitting units, leading to inconsistent light emitting efficiency and irradiation intensity.
Innovation Solution
The implementation of a shielding deflecting plate that deflects cooling air from axial fans to ensure uniform distribution across the heat radiating unit, combined with strategically positioned exhaust ports and fans to manage airflow direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If cooling air is supplied directly from the axial fan to the exhaust port, then the cooling air flows quickly out, but the cooling air cannot be uniformly distributed across the heat radiating unit
Solution Approach 1:
The shielding deflecting plate serves as an intermediary component between the axial fan and the heat radiating unit. It intercepts the cooling air flow from the fan and redirects it to cover the entire heat radiating unit surface, ensuring uniform cooling distribution while maintaining efficient air flow speed.
Solution Approach 2:
The shielding deflecting plate is positioned in advance to pre-direct the cooling air flow before it reaches the heat radiating unit. By arranging the plate at a specific angle, the cooling air is deflected to cover the entire heat radiating unit surface, ensuring uniform cooling is established before the air would naturally disperse.
2Device complexity
If the shielding deflecting plate is arranged parallel to the axial fan axis, then the structure is simple, but the cooling air cannot be effectively deflected
Solution Approach 1:
The shielding deflecting plate is arranged at an asymmetric angle relative to the axial fan axis, specifically tilted to deflect cooling air toward the heat radiating unit. This asymmetric arrangement is essential for effectively redirecting the air flow to achieve uniform cooling across the heat radiating unit surface.
3Manufacturing precision
If multiple components are added to improve cooling uniformity, then cooling uniformity improves, but the device complexity increases
Solution Approach 1:
The shielding deflecting plate performs multiple functions simultaneously: it shields portions of the cooling air from direct exhaust, deflects air flow to cover the heat radiating unit, and helps direct exhaust air flow. This multi-functionality achieves improved cooling uniformity without adding multiple separate components.
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 design achieves uniform cooling of the light emitting unit, enhancing light emitting efficiency and irradiation intensity uniformity, particularly effective for long light sources.
Implementation Method 1
an axial fan, a shielding deflecting plate, a heat radiating unit and an exhaust port are provided in a casing. The cooling air is supplied from the axial fan to the heat radiating unit
Implementation Method 2
heat of the light emitting unit is diffused by the heat radiating unit
Implementation Method 3
heat of the light emitting unit is diffused by the heat radiating unit, and the light emitting unit is cooled
Data Source
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AI summary
A light source device includes a casing including one end surface, other end surface, and one side surface between the one end surface and the other end surface, a light emitting unit provided on a side of the one end surface in the casing, a heat radiating unit provided in the casing and thermally connected to the light emitting unit, an exhaust port formed at least in a region located in one side surface and facing the heat radiating unit, an axial fan which is provided in the casing and supplies cooling air to the heat radiating unit, and a shielding deflecting plate which is provided between the axial fan and the heat radiating unit and shields a part of the cooling air supplied from the axial fan and deflects a part of the cooling air to a direction away from the exhaust port.