Self-Cleaning Cold Plate Flow Switching for Debris Buildup
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Solution Overview
Problem
Existing information handling systems face issues with debris buildup on cold plates due to continuous unidirectional coolant flow, which traditional filters fail to address effectively.
Innovation Solution
A cooling liquid flow switch that reverses the coolant flow direction through the cold plate to dislodge debris, utilizing rotatable inserts within the flow channels to alternate the flow path and direct contaminants to the filter for removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous unidirectional coolant flow is used, then cooling efficiency is maintained, but debris buildup occurs on cold plates
Solution Approach 1:
The system alternates coolant flow direction through periodic reversal using rotatable inserts. The inserts rotate to switch between forward and reverse flow configurations, creating periodic action that prevents continuous unidirectional flow. This periodic flow reversal dislodges debris accumulation while maintaining overall cooling efficiency through alternating directional flow patterns.
Solution Approach 2:
The patent implements reverse flow through the cold plate by rotating inserts that redirect coolant through alternative passages. When the insert rotates to the reverse position, coolant flows backward through the channels, inverting the normal flow direction. This inversion action specifically targets debris buildup areas, flushing contaminants toward the filter while maintaining cooling function.
2Object-generated harmful factors
If traditional filters are used, then debris removal is attempted, but filter clogging occurs and system efficiency decreases
Solution Approach 1:
The reverse flow mechanism performs preliminary debris removal action before contaminants reach the filter. By periodically reversing coolant flow, debris is dislodged from the cold plate surfaces and flushed back toward the filter in a controlled manner. This preliminary action prevents filter clogging by removing contaminants before they accumulate to problematic levels, maintaining system efficiency.
Solution Approach 2:
The system uses its own coolant flow to perform debris removal rather than relying solely on external filtering mechanisms. The reverse flow configuration allows the coolant itself to act as the cleaning medium, flushing debris from the cold plate channels and directing it to the filter. This self-service approach maintains cooling efficiency while simultaneously performing maintenance function.
3Object-generated harmful factors
If rotatable inserts are added to reverse flow, then debris removal improves, but device complexity increases
Solution Approach 1:
The rotatable inserts serve multiple functions: they control coolant flow direction, enable reverse flow for debris removal, and maintain sealing between passages. By making the insert multi-functional, the patent reduces the need for separate components for each function. The single rotating element handles flow switching, sealing, and debris removal control, thereby limiting the increase in device complexity.
Solution Approach 2:
The patent combines the flow control function and debris removal function into a single integrated mechanism. The rotatable insert simultaneously controls coolant direction and enables reverse flow patterns. Rather than using separate valves and filters, the design merges these functions into one rotating component that accomplishes multiple objectives, minimizing added 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
Effectively removes debris from cold plates by reversing coolant flow, maintaining system efficiency and extending the lifespan of cooling components.
Implementation Method 1
A cooling liquid flow switch reverses the coolant flow direction through the cold plate to dislodge debris, utilizing rotatable inserts within the flow channels to alternate the flow path
Implementation Method 2
utilizing rotatable inserts within the flow channels to alternate the flow path and direct contaminants to the filter for removal
Data Source
AI summary
A cooling liquid flow switch includes top and bottom plates, and first and second rotatable inserts. The first rotatable insert is located within the first opening of the top plate. When in a first position, the first rotatable insert creates a first liquid flow configuration within the flow channels of the top plate. When in a second position, the first rotatable insert creates a second liquid flow configuration within the flow channels of the top plate. The second rotatable insert is located within the second opening of the bottom plate. When in a third portion, the second rotatable insert creates a third liquid flow configuration within the flow channels of the bottom plate. When in a second position, the second rotatable insert creates a fourth liquid flow configuration within the flow channels of the bottom plate.