Patent ID: 7862410
Filing Date: 2011-01-04
Classification: H05K

Abstract:
1. An air removal unit for removing exhaust air from an equipment rack or enclosure, the unit comprising: a housing defining an interior chamber, the housing having a front panel, an upper back panel, a lower back panel a lower exhaust module front panel positioned behind said front panel, and two side walls; an upper exhaust module disposed within the interior chamber, the upper exhaust module including at least one upper fan module removably secured to the upper back panel, the upper fan module including a fan coupled with a first internal air plenum defined by the front panel, the side walls and the upper back panel; a lower exhaust module disposed within the interior chamber below the upper exhaust module, the lower exhaust module including at least one lower fan module removably secured to the lower back panel, the lower fan module including a fan coupled with a second internal air plenum defined by the lower exhaust module front panel, the side walls and the lower back panel, the lower back panel and the lower exhaust module front panel extending along parallel planes that are at an acute angle with respect to a generally vertical plane defined by the upper back panel to accommodate a width of the upper fan module; and the upper exhaust module and the lower exhaust module being further disposed in a stacked configuration along the depth of the unit with the lower fan module positioned in an offset orientation relative to the upper fan module.