CIRCUIT BREAKER Russian patent published in 2022 - IPC H01R13/62 

FIELD: emergency mode operation devices.

SUBSTANCE: invention relates to devices designed to operate in emergency mode, for example, to ensure fire and explosion safety of technical systems. According to the invention, the device comprises a base, lower and upper posts connected detachably, a knife for cutting a heat-resistant electrical harness, equipped with a clamp and placed above the bottom rack, the base and bottom rack are connected detachably by means of four screws, the end parts of which are guides for clamping , and on which four centering springs are installed, as a drive for the knife, which has a cutting edge sharply sharpened at an angle to the axis of the knife, in the clamp, at least one temperature-sensitive element made in the form of a deformed plate is inserted into the blind cylindrical groove in it made of AHTSM, in the middle of the lower rack there is a horizontal groove, in which a heat-resistant electrical harness to be cut is installed, and perpendicular to the mentioned groove in the lower part of the rack, a vertical groove is made for installing a knife directed by a sharp cutting edge to the heat-resistant electrical harness, in the side The tops of the upper and lower racks are provided with holes for inserting bolts for connecting the upper and lower racks to each other, and the heat-sensitive elements serving as a drive are made of an alloy with a high-temperature shape memory (AHTSM).

EFFECT: providing the possibility of accurate guidance of deformation, expansion of the working space of the device and the temperature range of emergency cutting of heat-resistant electrical harnesses.

1 cl, 3 dwg