Backflow Stopper with Acoustic Barrier for Data Storage
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Solution Overview
Problem
Data storage enclosures face increased failure rates and performance degradation due to high densities and operating temperatures, as well as acoustic disturbances from cooling fans, which affect the reliability and readability of data storage devices.
Innovation Solution
A backflow assembly with a fin array and acoustic barrier assembly is implemented to deflect and attenuate acoustic waves from fans, preventing backflow and reducing vibrational disturbances, thereby enhancing the operational efficiency and reliability of data storage devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If strong cooling fans are used to cool data storage devices, then cooling effectiveness is improved, but acoustic disturbances increase which degrade drive performance
Solution Approach 1:
An acoustic barrier assembly is introduced as an intermediary component between the cooling fan and the data storage devices. This barrier attenuates acoustic waves and vibrations generated by the fan while allowing cooling airflow to pass through, thereby protecting the drives from harmful acoustic disturbances without compromising cooling effectiveness.
Solution Approach 2:
The acoustic barrier is strategically positioned only in regions where acoustic disturbances are most problematic, specifically between the fan and the data storage devices. The barrier features localized sound absorption materials and vibration damping structures that target specific frequency ranges generated by the cooling fan, providing focused protection without affecting overall system cooling.
2Quantity of substance
If data storage devices are tightly packed to increase storage density, then storage capacity is improved, but vibrational and thermal environments become harsher which affects reliability
Solution Approach 1:
The enclosure is segmented into distinct zones with the acoustic barrier creating a separation between the high-vibration fan region and the data storage device region. This segmentation allows tight packing of drives in the storage zone while isolating them from vibrational and thermal disturbances generated by the cooling fan in the adjacent zone.
3Reliability
If externally mounted backflow louvers are used to prevent backflow, then backflow prevention is improved, but enclosure bulk increases and interferes with cables and walls
Solution Approach 1:
The acoustic barrier assembly is merged with the backflow prevention structure, combining two previously separate functions into a single integrated component. The backflow stopper incorporates acoustic absorption materials and vibration damping features within its structure, eliminating the need for separate externally mounted louvers while maintaining both backflow prevention and acoustic attenuation functions.
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 effectively reduces acoustic disturbances and prevents backflow, improving the reliability and performance of data storage devices by minimizing the impact of cooling fan noise and vibrations on data storage systems.
Implementation Method 1
An acoustic barrier assembly positioned adjacently to the backflow stopper and configured to attenuate acoustic waves emanating from the fan
Implementation Method 2
the fin array comprising a plurality of flexural deformation elements and associated fin elements arrayed in a radial arrangement to establish a pathway for airflow, each of the flexural deformation elements configured to move an attached fin element responsive to airflow impacting the attached fin element
Implementation Method 3
The backflow assembly is configured to deflect and attenuate at least a portion of the plurality of acoustic waves away from the at least one data storage device
Data Source
AI summary
To provide enhanced operation of data storage devices and systems, various systems, apparatuses, and methods are provided herein. In a first example, a backflow assembly includes a backflow stopper comprising a frame configured to structurally support a fin array when coupled to a fan, the fin array comprising a plurality of flexural deformation elements and associated fin elements arrayed in a radial arrangement to establish a pathway for airflow, each of the flexural deformation elements configured to move an attached fin element responsive to airflow impacting the attached fin element. An acoustic barrier assembly is positioned adjacently to the backflow stopper and configured to attenuate acoustic waves emanating from the fan.