Thick Extruded Plates for Hard Drive Cooling and Crush Resistance
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Solution Overview
Problem
As disaster-resistant housings for vertically stacked hard drives become taller, they face challenges in cooling, side impact, and crush resistance, with existing solutions failing to effectively address these issues while maintaining cost-effectiveness.
Innovation Solution
A water-resistant, extruded enclosure with thick thermally conductive plates that occupy over 75% of the vertical space between hard drives, providing enhanced cooling through metal conduction and increased impact and crush resistance, along with an automated manufacturing system for gypsum components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the housing is made taller to accommodate more hard drives, then the storage capacity increases, but the side impact and crush resistance decreases exponentially
Solution Approach 1:
The patent introduces vertical fins extending from the horizontal plates to form three-dimensional structures. These fins occupy additional spatial dimension and provide structural reinforcement against side impact and crush loads without increasing the overall height of the housing, thus maintaining storage capacity while improving strength.
Solution Approach 2:
The housing combines multiple materials with different properties: thermally conductive material for heat dissipation, water-resistant material for protection, and structurally reinforced sections with fins for impact resistance. This composite approach allows each material to optimize its function while collectively resolving the strength-capacity contradiction.
2Ease of manufacture
If thin sheets are used to support hard drives, then the manufacturing cost is reduced, but the cooling efficiency and structural resistance are insufficient
Solution Approach 1:
The patent transitions from two-dimensional thin sheets to three-dimensional structures by adding vertical fins that extend upward from the horizontal plates. This dimensional enhancement increases the thermal conduction surface area and structural strength without significantly increasing manufacturing complexity, as the fins are formed as integral parts of the extruded enclosure.
Solution Approach 2:
The patent changes the thickness parameter of the supporting plates from thin sheets to substantially thicker plates that occupy at least 75% of the vertical space between adjacent hard drives. This parameter change dramatically improves both cooling efficiency through increased thermal mass and conduction, and structural resistance to impact and crush loads.
3Temperature
If thick thermally conductive plates are used to improve cooling, then the heat transfer increases by over 200%, but the manufacturing complexity increases
Solution Approach 1:
The thick horizontal plates with vertical fins serve multiple functions simultaneously: they provide structural support for hard drives, act as heat sinks for thermal management, and reinforce the enclosure against side impact and crush loads. This multi-functionality reduces overall device complexity by consolidating multiple components into a single integrated structure.
Solution Approach 2:
The patent merges the support function, cooling function, and structural reinforcement function into a single integrated component system. The thick plates and fins are formed as integral parts of the extruded enclosure, eliminating the need for separate support brackets, heat sinks, and reinforcement elements, thus reducing manufacturing complexity despite the increased thickness.
4Ease of manufacture
If the wall thickness remains constant to reduce cost, then the manufacturing cost is reduced, but the resistance to side impact and crush forces decreases exponentially as housing becomes taller
Solution Approach 1:
Instead of increasing wall thickness in the horizontal direction (which would increase cost), the patent adds vertical fins that extend in the vertical dimension. These fins provide structural reinforcement against side impact and crush loads by increasing the moment of inertia and distributing forces across a larger area, without requiring thicker walls and thus maintaining cost-effectiveness.
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 significantly improves cooling efficiency by increasing heat transfer by over 200%, enhances impact and crush resistance tenfold and fivefold respectively, and reduces manufacturing costs by eliminating forced air ventilation and streamlining production processes.
Implementation Method 1
The improved plates, typically extruded aluminum (or other metal), provide significantly better cooling by conduction through the aluminum (or other metal) rather than through air. The thermal conductivity of aluminum is roughly 800 times greater than that of air.
Implementation Method 2
A water resistant, extruded enclosure for an array of hard drives
Data Source
AI summary
A thermally and structurally optimized disaster resistant housing for a vertically stacked array of computer digital data storage devices such as hard drives is provided. An external, fire resistant housing has an internally mounted water resistant enclosure for the array. The water resistant enclosure includes a plurality of much thicker plates than known which significantly increase dissipation of heat and simultaneously greater increase the crush and impact load resistance of the device. An automatic method is also provided for producing complex molded gypsum or cement components.