Data storage housing with a set of hard drives and fan devices
One feature pertains to an acoustic attenuation device. The acoustic attenuation device comprises a fan assembly, the fan assembly including at least one fan module that directs airflow in at least one direction, wherein the at least one fan module includes a top surface and a bottom surface, a plurality of air deflectors mounted to the top surface and the bottom surface of the at least one fan module, wherein the plurality of air deflectors include a plurality of surfaces, and wherein at least one of the plurality of surfaces is an angled surface that redirects the airflow 90-degrees, and acoustic attenuating foam, wherein the acoustic attenuating foam has a two-dimensional (2-D) surface and is applied to interior surfaces of the plurality of surfaces.
1. A system comprising:
a data storage housing;
a plurality of hard drives positioned within the data storage housing in a rectangular grid pattern, the plurality of hard drives comprising pairs of hard drives with the pairs of hard drives spaced apart from one another to provide a plurality of airflow channels; and
a plurality of fan devices positioned within the data storage housing, with each of the fan devices having a fan module and with each of the pairs of the hard drives having one of the fan modules positioned between the two hard drives of the pair of hard drives;
wherein each of the fan devices is configured to intake air from one of the airflow channels along an intake direction, redirect the air using an inlet air deflector onto a fan airflow direction through the fan module of the fan device, and further redirect the air using an outlet air deflector onto an output direction into another of the airflow channels, with the fan airflow direction perpendicular to both the intake direction and the output direction, and with the inlet air deflector mounted on one side of a corresponding pair of the hard drives and the outlet air deflector mounted on an opposing side of the corresponding pair of the hard drives;
wherein each of the fan devices is configured so the inlet air deflector and the outlet air deflector of the fan device are positioned entirely within one of the airflow channels on opposing sides of the corresponding pair of hard drives; and
wherein at least one of the inlet air deflectors and at least one of the outlet air deflectors comprises air deflector surfaces covered by an acoustic attenuating foam, wherein the acoustic attenuating foam has a flat two-dimensional (2-D) surface.
2. The system of claim 1 , wherein the inlet air deflector and the outlet air deflector of at least one of the fan devices face in opposite directions from one another.
3. The system of claim 1 , wherein the inlet air deflector and the outlet air deflector of at least one of the fan devices each comprise an air deflector surface angled in the range of 10-degrees to 80-degrees relative to the fan air flow direction.
4. The system of claim 1 , wherein the acoustic attenuating foam of the at least one of the inlet air deflectors and the at least one of the outlet air deflectors has a thickness between 1 millimeter (mm) and 5 mm.
5. The system of claim 1 , wherein the acoustic attenuating foam of the at least one of the inlet air deflectors and the at least one of the outlet air deflectors is selected to attenuate at least one of airflow energy and vibrational energy.
6. The system of claim 1 , wherein each of the hard drives is rectangular and of equal size and each has a length and a width, and wherein the fan module of each of the fan devices has a length that is longer than the width of the hard drives.
7. A system comprising:
a data storage housing;
a plurality of hard drives positioned within the data storage housing in a rectangular grid pattern, the plurality of hard drives comprising pairs of hard drives with the pairs of hard drives spaced apart from one another to provide a plurality of airflow channels; and
a plurality of fan devices positioned within the data storage housing, with each of the fan devices having a fan module and with each of the pairs of the hard drives having one of the fan modules positioned between the two hard drives of the pair of hard drives;
wherein each of the fan devices is configured to intake air along an intake direction from one of the airflow channels, redirect the air using an inlet air deflector onto a fan airflow direction through the fan module of the fan device, and further redirect the air using an outlet air deflector onto an output direction into another of the airflow channels, with the fan airflow direction perpendicular to both the intake direction and the output direction, and with the inlet air deflector mounted on one side of a corresponding pair of the hard drives and the outlet air deflector mounted on an opposing side of the corresponding pair of the hard drives; and
wherein each of the fan devices is configured so the inlet air deflector and the outlet air deflector of the fan device are positioned entirely within one of the airflow channels on opposing sides of the corresponding pair of hard drives.
8. The system of claim 7 , wherein the inlet air deflector and the outlet air deflector of each of the fan devices face in opposite directions from one another.
9. The system of claim 7 , wherein each of the inlet air deflectors and the outlet air deflectors comprises air deflector surfaces covered by an acoustic attenuating foam, and wherein the acoustic attenuating foam has a flat two-dimensional (2-D) surface.
10. The system of claim 9 , wherein the inlet air deflector and the outlet air deflector of each of the fan devices each comprise an air deflector surface angled in the range of 10-degrees to 80-degrees relative to the fan air flow direction.
11. The system of claim 9 , wherein the acoustic attenuating foam of at least one of the inlet air deflectors and at least one of the outlet air deflectors has a thickness between 1 millimeter (mm) and 5 mm.
12. The system of claim 9 , wherein the acoustic attenuating foam of at least one of the inlet air deflectors and of at least one of the outlet air deflectors is selected to attenuate airflow energy.
13. The system of claim 9 , wherein the acoustic attenuating foam of at least one of the inlet air deflectors and at least one of the outlet air deflectors is selected to attenuate vibrational energy.
14. The system of claim 7 , wherein each of the fan devices comprises a pair of the fan modules.
15. The system of claim 14 , wherein:
a first fan module of each pair of fan modules is configured to direct a first airflow in a first direction; and
a second fan module of each pair of fan modules is adjacent to the first fan module and is configured to direct a second airflow in a second direction opposite the first direction.
16. The system of claim 15 ,
wherein an inlet air deflector of the first fan module and an outlet air deflector of the second fan module are adjacent to one another but face in opposite directions, and are configured to direct air exiting the second fan module away from air entering the first fan module; and
wherein an outlet air deflector of the first fan module and an inlet air deflector of the second fan module are adjacent to one another but face in opposite directions and are configured to direct air exiting the first fan module away from air entering the second fan module.
17. The system of claim 16 , further comprising an acoustic attenuating foam, wherein the acoustic attenuating foam has a two-dimensional (2-D) surface and is applied to a flat interior surface of at least one of the air deflectors.
18. The system of claim 7 , wherein the data storage housing includes a plurality of enclosing surfaces, and wherein an acoustic attenuating foam is applied to interior surfaces of the plurality of enclosing surfaces.
19. The system of claim 18 , wherein the acoustic attenuating foam has a thickness between 1 millimeter (mm) and 5 mm.
20. A system comprising:
a data storage housing;
a plurality of hard drives positioned within the data storage housing, the plurality of hard drives comprising pairs of hard drives with the pairs of hard drives spaced apart from one another to provide a plurality of airflow channels; and
a plurality of fan devices positioned within the data storage housing, with each of the fan devices having a fan module and with each of the pairs of the hard drives having one of the fan modules positioned between its two hard drives;
wherein each of the fan devices comprises means for intaking air along an intake direction from one of the airflow channels, means for redirecting the air onto a fan airflow direction through the fan module of the fan device, and means for redirecting the air onto an output direction into another of the airflow channels, with the fan airflow direction perpendicular to both the intake direction and the output direction, and with the means for redirecting the air onto the fan airflow direction mounted on one side of a corresponding pair of the hard drives and the means for redirecting the air onto the output direction mounted on an opposing side of the corresponding pair of the hard drives; and
wherein each of the fan devices is configured so that the means for redirecting the air onto the fan airflow direction and the means for redirecting the air onto the output direction of the fan device are positioned entirely within one of the airflow channels on opposing sides of the corresponding pair of hard drives.