Segmented Fan Control for Server Heat Dissipation
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Solution Overview
Problem
Current heat dissipation methods in servers, such as increasing fan speed or zoning fans, are inefficient and lead to overheating and resource waste, particularly when only one processor is actively used, resulting in uneven cooling and noise issues.
Innovation Solution
A heat dissipation structure comprising a thermally conductive substrate with contact regions and cooling fins that absorb and dissipate heat effectively across multiple devices, ensuring balanced temperature distribution and reducing the risk of overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the rotation speed of the entire fan system is increased to accelerate heat dissipation, then the heat dissipation speed improves, but the noise increases and the heat dissipation efficiency for the specific overheated processor is not ideal
Solution Approach 1:
The patent divides the fan system into multiple independent zones, each with its own fan unit. This segmentation allows individual fans to be controlled separately based on the heat dissipation needs of specific processors, rather than increasing the speed of the entire fan system. The segmented approach enables targeted cooling of overheated processors while maintaining lower speeds for other fans, thereby reducing overall noise while effectively addressing the specific heat dissipation problem.
2Temperature
If fans are divided into multiple zones to separately control fans for improving heat dissipation efficiency of the overheated processor, then the heat dissipation efficiency improves, but the single sided fan becomes too noisy and fans of other processors rotate at constant speed resulting in waste of resources
Solution Approach 1:
The patent implements dynamic control of fan speeds within each zone based on real-time temperature monitoring of processors. Each fan unit can independently adjust its rotation speed according to the thermal conditions of its associated processor. This dynamic adjustment ensures that fans operate at the minimum necessary speed to maintain proper cooling, avoiding both the waste of running fans at constant high speed and the inefficiency of uniform control across all processors.
3Temperature
If fans are divided into multiple zones to separately control fans, then the heat dissipation efficiency of the overheated processor improves, but the single sided fan is too noisy
Solution Approach 1:
The patent applies local quality control by assigning different operational characteristics to different fan zones based on their specific cooling requirements. Each zone's fan units can operate at different speeds tailored to the thermal load of their respective processors. This localised control ensures that only the necessary fans operate at higher speeds to cool specific overheated processors, while other fans maintain lower speeds, thereby achieving effective heat dissipation with reduced overall noise levels.
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 proposed solution enhances heat dissipation efficiency, reduces the risk of device damage from overheating, and optimizes resource utilization by maintaining balanced temperatures across multiple devices, even when only one processor is actively used, while minimizing noise and energy consumption.
Implementation Method 1
The substrate includes a thermally conductive material
Implementation Method 2
cooling fins connected to the substrate
Implementation Method 3
cooling fins connected to the substrate
Data Source
AI summary
A heat dissipation structure is provided for an electronic device. The heat dissipation structure includes a substrate and cooling fins connected to the substrate. The substrate includes a thermally conductive material. A first surface of the substrate has a plurality of contact regions. The plurality of contact regions of the first surface contact at least one device to be cooled.