ONBOARD UNIT FOR THERMAL AND MECHANICAL PROTECTION OF OBJECT

摘要

FIELD: protection of microelectronic information recorders; protected onboard flight information storage units of aircraft and helicopters. ^ SUBSTANCE: proposed onboard protective unit consists of layers located in succession: outer shock-and-heat resistant layer made from high-temperature metals, intermediate heat protective layer made from refractory dry porous material and inner heat protective layer made from water-containing material enclosed between outer and inner heat-transfer gaskets. Outer shock-and-heat resistant layer is perforated with through drainage holes whose diameters do not exceed half thickness of outer shock-and-heat resistant layer; heat-transfer gaskets are made from metal foil; outer heat-transfer gasket is perforated and inner heat protective layer is used with at least two crystallohydrates; temperature of dehydration of one of crystallohydrates exceeds temperature of other crystallohydrate by no less than two times. ^ EFFECT: enhanced efficiency of protection of object. ^ 1 dwg