Permanent magnet release

The utility model discloses a permanent magnet release, which comprises a magnet yoke, a coil assembly, a movable iron core assembly, an elastic piece, a static iron core assembly and a permanent magnet, wherein an accommodating space is formed inside the magnet yoke; the coil assembly is arranged in the accommodating space; the coil assembly comprises a reset coil and a trip coil, and the reset coil and the trip coil are sequentially arranged in the axial direction of the coil assembly; the movable iron core assembly can move up and down along the coil assembly; the elastic piece is axially arranged along the coil assembly, and one end of the elastic piece abuts against or is fixedly connected with the movable iron core assembly; the static iron core assembly abuts against or is fixedly connected with the other end of the elastic piece. The permanent magnet is arranged on the outer side of the static iron core assembly and connected to one end, close to the trip coil, of the coil assembly; the tripping devic