Electronic anti-theft label of nickel-titanium alloy temperature memory wire

An electronic anti-theft label of a nickel-titanium alloy temperature memory wire, comprising a first housing (1), a second housing (2) with a boss (21), a locking beam (5), a locking catch (6), a rotating device, a nickel-titanium alloy temperature memory wire (12), and an unlocking device (15);

• wherein a hollow chamber for accommodating the rotating device is defined by the first housing (1) and the second housing (2), a first groove (3) and a second groove (4) are defined in the hollow chamber, the first groove (3) and the second groove (4) are in communication with the hollow chamber;
• two ends of the locking beam (5) are arranged in the first groove (3) and the second groove (4) respectively;
• the locking catch (6) is arranged in the hollow chamber and is connected with an end of the locking beam (5) in the first groove (3), and the rotating device is connected with the locking catch (6);
• the nickel-titanium alloy temperature memory wire (12) is wound on the boss (21) to form a first coil (13) which abuts against the rotating device;
• an end of the unlocking device (15) is provided with a second coil (16) made of metal, a third groove (14) is defined on a side, facing away from the first housing (1), of the boss (21), the third groove (14) is configured to accommodate the second coil (16), the second coil (16) is placed in the third groove (14) after the unlocking device (15) is energized, the first coil (13) is induced to generate electricity, and the nickel-titanium alloy temperature memory wire (12) is heated to contract to drive the rotating device to move, so that the locking catch (6) is disengaged from the locking beam (5).