The present invention relates to a ruggedized enclosure for housing and
protecting electronics circuits. The enclosure utilizes a top compartment
for housing the circuit and a cooling assembly rigidly coupled to the top
compartment. The cooling assembly utilizes a passive radiator to form a
rigid truss plate structure. The truss plate structure rigidifies the
enclosure helping to protect the enclosure and circuit from destructive
shock events and destructive vibration events. The cooling assembly
further provides an efficient heat exchange for removing heat from the
electronic circuit. A method for protecting an electronic circuit
utilizing a rigid truss plate structure is also provided.