Patent attributes
A fire extinguishing device includes a pressure fire extinguishing agent and an accommodating space (1) capable of storing the fire extinguishing agent. A lot of cut-through ejecting openings (2) are defined in an outer wall of the accommodating space (1), and the ejecting openings (2) are plugged by plugging pieces (3) made of a pressure-resistant meltable fireproof material. In the case of a local temperature rise or an open fire of the target in an airtight or semi-airtight space, the plugging piece (3) on the ejecting opening (2) is melted to make the ejecting opening (2) cut through, the pressure fire extinguishing agent stored in the accommodating space is further ejected from the ejecting opening (2) to suppress a fire point or a high temperature point of the target, therefore the fire is controlled at the first time.
