Flame containment and suppression baffle structure for electronic circuit board cabinet

A hazardous condition containment and suppression arrangement for a housing having a plurality of card slots in which electronic circuit cards are respectively installable, said housing being configured to allow for the circulation of air therein, said arrangement comprising:

• a baffle adapted to be mounted with said housing adjacent to said plurality of card slots, and having a wall region through which at least one opening is provided, and a movable closure normally retained in first, out-of-the-way position, relative to said at least one opening, that allows air to pass therethrough, but being positionable to a second, closed position against said at least one opening, preventing air from passing therethrough and thereby constricting air flow into and out of said housing;
• and
• a closure control mechanism coupled with said closure, and being operative to cause said closure to be positioned at said second, closed position and thereby close said at least one opening through said wall region of said baffle, in response to a prescribed environmental condition within said housing.

A flame containment and suppression arrangement for a housing containing a plurality of card slots in which electronic circuit cards are respectively installable, said housing being configured to allow for the circulation of air therein, said arrangement comprising:

• a baffle adapted to be coupled to said housing adjacent to said plurality of card slots, and having a wall region through which at least one air-flow opening is provided, and a movable closure normally retained by a meltable attachment in a first, out-of-the-way position, relative to said at least one opening, that allows air to pass therethrough, but being positionable to a second, closed position against said at least one opening, preventing air from passing therethrough and thereby constricting air flow into and out of said housing in response to inability of said meltable attachment to retain said movable closure in said first position;
• and
• a heat and flame deflector coupled with said meltable attachment, and being configured to direct a flame emanating from the vicinity of said plurality of card slots toward said meltable attachment, and thereby cause said closure to be moved to said second, closed position and thereby close said at least one opening through said wall region of said baffle.