Moving Head Light Cooling Module with Segmented Plates
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Solution Overview
Problem
Existing moving head light fixtures face challenges in cooling high-power LEDs and electronic circuits due to limited space, with conventional cooling systems being inefficient and unable to accommodate the compact design requirements, leading to heat buildup and potential damage.
Innovation Solution
A compact cooling module is designed with LEDs on one cooling plate and electronic circuits on another, connected by a spacer with an air flow passage and a centrifugal fan, allowing for effective heat dissipation from both components, and additional features like helix-shaped spacers and comb-shaped fins enhance cooling efficiency and protect against dust and moisture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If high-power LEDs are used to increase illumination intensity, then the light output is improved, but the heat generation increases and cooling becomes more difficult
Solution Approach 1:
The cooling system is segmented into multiple independent cooling plates, each dedicated to cooling specific components (LEDs, driver circuits, capacitors). This segmentation allows targeted cooling of heat-generating components while maintaining compact overall size, resolving the contradiction between high power output and heat dissipation capability.
2Volume of moving object
If the light fixture size is reduced for moving head applications, then the device compactness is improved, but the cooling efficiency deteriorates
Solution Approach 1:
Cooling plates are strategically positioned at specific locations where heat generation is highest (near LEDs, driver circuits, and capacitors). The cooling system provides localized intensive cooling at these critical points rather than uniform cooling throughout the entire fixture, enabling effective heat dissipation in a compact design.
Solution Approach 2:
The cooling system utilizes three-dimensional space by stacking cooling plates vertically and horizontally, creating multiple cooling pathways in different dimensions. This spatial arrangement allows efficient heat dissipation without increasing the overall footprint of the fixture, maintaining compactness while improving cooling efficiency.
3Device complexity
If electronic circuits are positioned close to LEDs for compact design, then the device complexity is reduced, but the cooling requirement increases
Solution Approach 1:
The cooling plates serve dual functions: they provide mechanical mounting for electronic components and simultaneously act as heat sinks for thermal management. This merging of structural and cooling functions allows circuits to be positioned close to LEDs for compactness while maintaining adequate cooling capacity through the integrated cooling plate design.
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 enables efficient cooling of both LEDs and electronic circuits within a compact moving head light fixture, reducing size, improving heat dissipation, and enhancing serviceability by creating a quieter and more effective cooling system that prioritizes the hottest areas.
Implementation Method 1
the configuration is capable of directly conducting the heat produced by the LEDs and the driver respectively to an outer shell of the moving head
Implementation Method 2
an air flow passage running from at least one end of the moving head, through at least one of the cooling plates and between the first cooling plate and the second cooling plate
Implementation Method 3
a centrifugal fan positioned between the first cooling plate and the second cooling plate
Data Source
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AI summary
The present invention relates to a moving head light fixture, which moving head light fixture comprises a light generating head, which head is carried in a yoke, which head is rotatable to the yoke, which yoke is rotatable to a base, which head comprises at least one electronic circuit for LED control, where the moving head comprises a first cooling plate comprising a number of LEDs; a second cooling plate comprising said at least one electronic circuit for LED control; and an air flow passage running from at least one end of said moving head, through at least said first cooling plate and/or said second cooling plate and between said first cooling plate and said second cooling plate. The present invention relates also to a cooling module for a moving head.