Hard Drive Cooling Device with Segmented Fan and Vibration Dampening
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Solution Overview
Problem
In large-scale computing systems like server farms, traditional cooling methods often require reduced hard drive density to prevent overheating, leading to increased physical space requirements and vibrations from fans that can degrade drive performance.
Innovation Solution
A cooling apparatus with a housing designed to fit into hard drive receptacles, equipped with a fan that provides targeted airflow at a non-zero angle, along with power and data connections to a processor for temperature monitoring and control, and optional vibration-dampening features, allowing for efficient cooling of hard drives without disturbing their operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If hard drive density is increased to improve space utilization, then productivity is improved, but hard drives overheat and reliability deteriorates
Solution Approach 1:
The cooling system is segmented into multiple independent cooling devices, each assigned to specific hard drives in the array. Each cooling device contains its own fan and housing that fits into receptacles between hard drives, creating localized cooling zones. This segmentation allows high-density packing while maintaining individual thermal management for each drive or group of drives.
Solution Approach 2:
The cooling devices provide localized cooling directly at the heat source (hard drives) rather than relying on general ambient cooling. The fan in each cooling device directs airflow specifically at adjacent hard drives, creating locally optimized thermal conditions that enable high overall density while maintaining individual drive reliability.
2Temperature
If traditional cooling fans are mounted directly to hard drives to improve cooling efficiency, then temperature control is improved, but vibrations increase and reliability deteriorates
Solution Approach 1:
The cooling function is extracted from the hard drive itself and placed in separate cooling devices that fit into empty receptacles in the hard drive array. The fan is not mounted to the hard drive but rather positioned in an adjacent receptacle, directing airflow at the drive without physical attachment. This extraction eliminates vibration-induced performance degradation while maintaining effective cooling.
Solution Approach 2:
The cooling device acts as an intermediary between the cooling system and the hard drive. Rather than directly mounting the fan to the drive, the fan is positioned in a separate housing that interfaces with the drive through controlled airflow. This intermediary position allows cooling while isolating the drive from vibration.
3Temperature
If fan speed is increased to improve cooling efficiency, then temperature control is improved, but vibrations increase and harmful factors worsen
Solution Approach 1:
The housing and mounting structure of the cooling device serve as an intermediary that isolates the fan from the hard drive. The fan is mounted within the cooling device housing rather than directly to the drive, allowing vibration dampening while maintaining cooling effectiveness. This intermediary structure permits higher fan speeds for improved cooling without transmitting harmful vibrations to the drive.
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 increased hard drive density and improved airflow, reducing temperatures and preventing overheating, while minimizing vibrations and maintaining drive performance, thus enhancing operational efficiency and reducing costs.
Implementation Method 1
the fan causes both impingement as well as indirect airflow on a surface of the selected hard drive
Implementation Method 2
the fan causes both impingement as well as indirect airflow on a surface of the selected hard drive
Implementation Method 3
The housing comprises rails adapted to be received in the receptacle, wherein the rails being configured to dampen vibrations caused by operation of the fan
Data Source
AI summary
Aspects of the invention include a method and apparatus for cooling a hard drive in a hard drive array. In one example, the cooling device has similar dimensions as a hard drive on a server. Within the cooling device is a fan. The positioning of the fan provides both impingement and indirect airflow on a hard drive. The cooling device may also have power and data connections identical to those of the hard drive. These connections allow the cooling device to be connected and controlled by a control unit. The control unit may operate to monitor and control the temperature of the hard drive by controlling the power and speed of the fan. In another example, the cooling device is operable to cool DIMMs on a circuit board.