Air Shroud With Active Air Mover for Dynamic Cooling
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Solution Overview
Problem
Traditional passive air shrouds in information handling systems fail to dynamically adjust airflow based on changing cooling needs of components like CPUs and memory, leading to suboptimal cooling performance as memory power increases, with higher CPU heatsink density offering limited benefits to memory cooling while reducing CPU cooling efficiency.
Innovation Solution
An air shroud system with multiple channels and a shroud air mover that can operate in inactive and active modes, allowing for increased airflow to the memory when needed, dynamically controlling airflow distribution between CPU and memory components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If passive air shroud design is used to control airflow, then airflow can be limited or controlled to provide cooling for components, but the cooling needs of components change dynamically based on workload and cannot be adjusted
Solution Approach 1:
The patent applies the dynamics principle by integrating an active air mover into the air shroud, transforming it from a static passive structure to a dynamic active system. The air mover can be activated or deactivated based on real-time cooling demands of components, allowing the airflow characteristics to change dynamically while maintaining a relatively simple overall structure.
Solution Approach 2:
The system implements self-service by using the air mover to actively adjust airflow distribution according to the dynamic cooling needs of different components. The air mover can be controlled to direct more airflow to specific components when they require additional cooling, enabling the system to self-regulate without external intervention.
2Adaptability or versatility
If CPU heatsink density is increased to control airflow distribution, then more airflow can be directed to memory, but CPU cooling performance deteriorates
Solution Approach 1:
Instead of using a fixed heatsink density configuration, the patent employs a dynamic air mover that can actively adjust airflow distribution in real-time. This allows the system to flexibly direct airflow to memory when needed without permanently reducing CPU cooling capability, as the air mover can compensate by increasing airflow to the CPU when required.
Solution Approach 2:
The patent changes the operational parameters of the air shroud system by introducing a controllable air mover that can vary airflow rates and directions. This dynamic parameter adjustment allows the system to optimize airflow distribution based on real-time thermal conditions, avoiding the need to fix heatsink density at suboptimal values.
3Power
If memory power increases requiring more cooling, then additional cooling capacity is needed for memory, but traditional passive air shrouds cannot provide dynamic cooling adjustment
Solution Approach 1:
The air mover integrated into the air shroud enables the system to self-regulate cooling capacity based on memory power consumption and thermal conditions. When memory requires additional cooling due to increased power usage, the air mover can be activated or adjusted to direct sufficient airflow to the memory area, providing adaptive cooling capacity.
Solution Approach 2:
The system dynamically changes airflow parameters (rate and direction) through the controlled operation of the air mover to match the varying cooling demands of memory. This allows the cooling capacity to scale with memory power consumption, providing the necessary adaptability for different operating conditions.
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 solution enhances cooling efficiency by allowing for dynamic adjustment of airflow based on workload demands, improving memory cooling while maintaining CPU performance, thus addressing the limitations of traditional passive air shroud designs.
Implementation Method 1
a shroud air mover mechanically coupled to the air shroud and fluidically coupled to the second channel via an opening formed in the air shroud and fluidically interfaced between the second channel and the shroud air mover
Implementation Method 2
a plurality of channels including at least a first channel configured to direct airflow driven by one or more chassis-level air movers from outside the chassis into the chassis
Implementation Method 3
the CPU heatsink fin density can be manipulated to control how much airflow passes through the CPU heatsink compared to the memory
Data Source
AI summary
An air shroud may include a plurality of channels including at least a first channel configured to direct airflow driven by one or more chassis-level air movers from outside a chassis enclosing the air shroud into the chassis and into the first channel and a second channel configured to direct airflow driven by the one or more chassis-level air movers from outside the chassis into the chassis and into the second channel, and an opening formed in the air shroud and fluidically configured to be interfaced between the second channel and a shroud air mover such that, when the shroud air mover operates in a plurality of modes comprising a first mode in which the shroud air mover is inactive and a second mode in which the shroud air mover is active, airflow through the second channel is greater in the second mode than in the first mode.