Blower Fin-Stack Design for Uniform Information System Cooling
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Solution Overview
Problem
Traditional blowers in information handling systems often produce non-uniform airflow, leading to inefficiencies in heat dissipation and thermal performance.
Innovation Solution
A thermal management apparatus featuring a blower with an impeller, base, and cover, coupled with a fin-stack that includes internal and external fins. The external fins are positioned between the base and cover to distribute airflow evenly across the egress and internal fins, enhancing heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional blowers are used, then the device structure is simple, but the airflow distribution is non-uniform causing poor heat dissipation efficiency
Solution Approach 1:
The blower assembly is segmented into multiple functional components: the blower housing, the fin-stack assembly with external fins, and the internal fins. This segmentation allows each component to perform its specific function optimally while maintaining overall structural clarity and ease of manufacture.
Solution Approach 2:
External fins are positioned specifically between the blower housing and the fin-stack, while internal fins are placed within the fin-stack structure. This local placement of fin structures creates targeted airflow distribution zones that improve heat dissipation efficiency at critical locations without complicating the entire device structure.
2Productivity
If external fins are added to distribute airflow, then heat dissipation efficiency improves, but device complexity increases
Solution Approach 1:
The external fins and internal fins are merged into a single integrated fin-stack assembly that works together with the blower housing. This merging approach allows the airflow distribution function to be achieved through a coordinated system rather than separate independent components, reducing overall device complexity.
Solution Approach 2:
The fin-stack assembly serves multiple functions simultaneously: it distributes airflow uniformly across the egress, provides thermal management through heat transfer surfaces, and maintains structural integrity of the blower assembly. This multi-functionality reduces the need for additional 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
The solution maximizes cooling performance in information handling systems by ensuring uniform airflow distribution, thereby improving thermal management and efficiency.
Implementation Method 1
a fin-stack configured to receive the airflow and transfer heat from the airflow
Implementation Method 2
the external fins configured to distribute the airflow across the egress and the internal fins of the fin-stack
Data Source
AI summary
A thermal management apparatus, including: a blower, including: an impeller configured to direct airflow towards an egress; a base; and a cover, wherein the cover is coupled to the base to encase the impeller; a fin-stack configured to receive the airflow and transfer heat from the airflow, including: a plate having a perimeter; internal fins coupled to the plate and contained within the perimeter of the plate; and external fins extending external to the perimeter of the plate, wherein the fin-stack is coupled to the blower such that the external fins are positioned between the base and the cover, the external fins configured to distribute the airflow across the egress and the internal fins of the fin-stack.