Projection Device Light Source Carrier Cooling Structure
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Solution Overview
Problem
Existing cooling systems for high-power light sources in projection devices, such as those used in 3D printing, are inadequate for efficiently dissipating heat, limiting the power and luminosity of the light sources they can handle.
Innovation Solution
A light source carrier with a cooling structure formed by multiple ribs that directs cooling liquid to absorb and transport heat away from the light source, integrated into a fluid-tight cooling housing with a flow guide element to enhance heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional cooling systems are used, then the device structure remains simple, but the heat dissipation capability is insufficient for high-power light sources
Solution Approach 1:
The cooling structure is segmented into multiple ribs that extend from the light source carrier into the cooling housing cavity. These ribs create multiple flow channels that divide the cooling liquid flow, increasing the surface area for heat exchange and improving heat dissipation efficiency for high-power light sources.
Solution Approach 2:
The cooling structure transitions from a simple planar design to a three-dimensional configuration with ribs extending into the cavity. This dimensional change creates vertical flow paths and increases the effective cooling surface area, enabling better heat dissipation without significantly increasing the overall device footprint.
2Temperature
If the cooling structure is made complex with multiple ribs, then the heat dissipation efficiency improves, but the manufacturing complexity increases
Solution Approach 1:
The cooling ribs are integrated directly into the light source carrier as a unified structure. This merging of the cooling function with the structural carrier reduces the number of separate components, simplifying assembly while maintaining the complex heat dissipation geometry through monolithic design.
Solution Approach 2:
The light source carrier serves dual functions: it mechanically supports the light source and provides the cooling structure through its rib formations. This multi-functionality reduces the overall component count and simplifies the device architecture while achieving effective heat dissipation.
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 solution effectively manages heat dissipation for high-power light sources, enabling the use of more powerful LEDs in projection devices by ensuring efficient cooling, thereby improving the performance and reliability of the devices.
Implementation Method 1
the cooling liquid that can flow into the cavity can flow through between the ribs in order to absorb the heat given off by the at least one light source to the light source carrier
Implementation Method 2
transport it away by flowing away via the outlet
Data Source
AI summary
Projection device (10) for printer devices, in particular devices for 3D printing, wherein the projection device comprises: - at least one light source (100) and a light source support (200), - a projection optics system (300) configured to project the light emittable by the at least one light source (100) in front of the projection device (100), and - a cooling system (400) for dissipating the heat generated by the at least one light source (100), wherein the cooling system comprises: - a fluid-tight cooling housing (410) enclosing a cavity (420), wherein the cooling housing (410) has an inlet (410a) for allowing a cooling liquid to flow into the cavity (420) and an outlet (410b) separate from the inlet (410a) for allowing the cooling liquid to flow out of the cavity (420), wherein the light source support (200) comprises at least a part of the fluid-tight cooling housing (410) forms,so that the coolant flowing into the cavity (420) can absorb the heat emitted by the at least one light source (100) to the light source support (200) and carry it away by flowing out through the outlet (410b), wherein the light source support (200) has a cooling structure (210) made up of a plurality of fins (211), wherein the cooling structure (210) is arranged on the second side (200b) of the light source support (200) and projects into the cavity (420) of the cooling housing (410) in such a way that the coolant flowing into the cavity (420) of the cooling housing (410) can flow between the fins (211) to absorb the heat emitted by the at least one light source (100) to the light source support (200) and carry it away by flowing out through the outlet (410b).