US Patent No. 10,219,405

AIRFLOW STRAIGHTENER IN AN ELECTRONICS CHASSIS


Patent No. 10,219,405
Issue Date February 26, 2019
Title Airflow Straightener In An Electronics Chassis
Inventorship Richard G. Baldwin, Jr., Austin, TX (US)
Jared S. Harlan, Austin, TX (US)
D. Vance Toth, Austin, TX (US)
Assignee NATIONAL INSTRUMENTS CORPORATION, Austin, TX (US)

Claim of US Patent No. 10,219,405

1. A chassis, comprising:two or more electronic devices arranged along a first direction;
one or more fans, wherein the one or more fans are configured to provide a flow of air through the chassis;
at least one channel configured to direct the flow of air from the one or more fans to the two or more electronic devices, wherein the at least one channel has at least first and second regions, wherein the first region is larger in cross sectional area than the second region, and wherein the first region comprises a sloped region that compresses the flow of air into the second region;
at least one grating located in the first region of the at least one channel, wherein the at least one grating is comprised of a plurality of first dividers predominantly oriented along a second direction and arranged along the first direction, and a plurality of second dividers predominantly oriented along the first direction and arranged along the second direction, wherein the first and second dividers are oriented to direct the flow of air, wherein a spacing between adjacent ones of the first dividers is smaller than a spacing between adjacent ones of the second dividers, wherein a depth of the first dividers is oriented along a third direction that is perpendicular to each of the first and second directions, and wherein the third direction is intermediate between a slope of the sloped region and a slope of the second region; and
wherein the at least one grating is configured to increase uniformity of the flow of air through the at least one channel.