Ducted exhaust equipment enclosure
An electronic equipment enclosure includes a frame structure at least partially enclosed by a plurality of panels defining a compartment in which one or more electronic components are mounted and an exhaust air duct that is adapted to segregate hot air being exhausted from the compartment from cool air entering the compartment, thereby improving thermal management of the enclosure. The exhaust duct includes a lower duct section extending upward from the top panel of the compartment and an upper duct section telescoping upward from an upper end of the lower duct section. Each duct section includes four panels connected together by hinged corner fittings such that the section is collapsible. The upper duct section includes an outwardly flared portion.
1. An arrangement of ducted exhaust electronic equipment enclosures, comprising:
(a) a row of electronic equipment enclosures, each including:
(i) a frame structure formed from a plurality of support posts and cross members,
(ii) a plurality of panels, including a top panel, at least partially enclosing the frame structure and defining a single compartment for mounting at least one electronic component,
(iii) wherein the top panel and upper portions of the frame structure form a top of the electronic equipment enclosure, the electronic equipment enclosure top having a rectangular opening therein and also an outer perimeter, and
(iv) wherein the rectangular opening has a side-to-side width that is at least 75% of a side-to-side width of the electronic equipment enclosure top perimeter; and
(b) a row of exhaust air ducts, each extending upward from a respective electronic equipment enclosure top, for exhausting hot air from the single compartment of the respective electronic equipment enclosure wherein:
(i) at least a lower section of each exhaust air duct is rectangular in cross-section,
(ii) the side-to-side width of each exhaust air duct cross-section is substantially the same as the side-to-side width of the rectangular opening in the electronic equipment enclosure top,
(iii) the lower section of each exhaust air duct is disposed in surrounding relation to, in fluid communication with, and aligned with, the opening in the electronic equipment enclosure top such that an interior of the exhaust air duct is in direct and unobstructed fluid communication with an interior of the single compartment, and
(iv) a seal structure is disposed along at least substantially an entirety of an upper end of at least one of the exhaust ducts, each seal structure including a deflectable free end that, in an undeflected state, is arranged to extend upward from the respective exhaust duct and to flare outward beyond a footprint defined by the exhaust duct, and, in a deflected state, is deflected downward, beyond the footprint defined by the exhaust duct, by a surface of an overhead structure.
2. The arrangement of ducted electronic equipment enclosures of claim 1 , wherein the side-to-side width of the rectangular opening in each of at least some of the electronic equipment enclosure tops is at least 80% of the side-to-side width of the electronic equipment enclosure top.
3. The arrangement of ducted electronic equipment enclosures of claim 1 , wherein the side-to-side width of the rectangular opening in each of at least some of the electronic equipment enclosure tops is at least 85% of the side-to-side width of the electronic equipment enclosure top.
4. The arrangement of ducted electronic equipment enclosures of claim 1 , wherein the rectangular opening in each of at least some of the electronic equipment enclosure tops is disposed toward a rear of the respective compartment.
5. The arrangement of ducted electronic equipment enclosures of claim 1 , wherein the rectangular opening in each of at least some of the electronic equipment enclosure tops is disposed entirely in a rear half of the respective electronic equipment enclosure top.
6. The arrangement of ducted electronic equipment enclosures of claim 1 , wherein the front-to-back length of the rectangular opening in each of at least some of the electronic equipment enclosure tops is at least 30% of the front-to-back length of the respective electronic equipment enclosure top.
7. The arrangement of ducted electronic equipment enclosures of claim 1 , wherein the side-to-side width of each exhaust air duct is selected to correspond to the width of the respective enclosure such that the width is as wide as possible while still accommodating the exhaust air duct mounted to the top of the enclosure.