1 results about "Asbestos fiber" patented technology

The utility model relates to circuit board technical field especially relates to a fireproof circuit board. The utility model provides such a fireproof circuit board, including installation base, circuit board body, asbestos fibre fireproof buffer layer, aluminium hydroxide flame -retardant isolation layer, flame -retardant epoxy resin layer, deflector, circuit board wiring interface and fireproof cover, installation base top installs circuit board body, and the right -hand member of circuit board body has integrated circuit board wiring interface, and asbestos fibre fireproof buffer layer is fixed on installation base. Through the multilayer protection structure that fireproof cover, asbestos fibre fireproof buffer layer, aluminium hydroxide flame -retardant isolation layer, flame -retardant epoxy resin layer etc. constitute, combine the active fire extinguishing mechanism of heptafluoro propane fire extinguishing bag and high temperature crushing layer, form the complete protection chain from the outside barrier to internal fire extinguishing, can effectively block external flame burn circuit board body, and the fireproof effect is greatly promoted.