Power-off device based on temperature sensing of thermosensitive wire

Abstract

The power-off device comprises a shell arranged on an electric wire, a grain groove used for fixing a fire extinguishing agent grain is formed in the shell, the top of the grain groove is open, the electric wire is located above the grain groove, the fire extinguishing agent grain is connected with one end of the thermosensitive wire, and the other end of the thermosensitive wire is wound on the surface of the electric wire. The surface of the shell is provided with a blow-off port; according to the utility model, when a fire occurs, the circuit breaking process of the electric wire can be rapidly carried out by igniting the thermosensitive wire, and no danger exists in the circuit breaking process, so that life safety is ensured, and timely and effective power failure can be realized; and meanwhile, the fire extinguishing substance can be sprayed out from the spraying opening to extinguish the fire in the peripheral area of the shell.

Images