These mini locks are generally similar to common ‘cabinet locks’ or ‘gate locks.’ But by employing ultrathin SMA wire (drawn to Miga proprietary specifications) to produce the unlatching force, instead of motors or solenoids, the patented ThinLocks can be made thinner, lighter, and quieter than any other existing technology.
Actuation time is a function of applied voltage and theycan be operated using a wide range of drive voltages to meet time-required-to-activate specifications. Actuation force is a function of wire diameter and ThinLocks are available in SMA wire diameters to meet locking force requirements of 100 pounds or more, while operating for more than 100,000 cycles.
Drive Voltage (volts)
Actuation Time (s)
Onboard circuits protect the SMA wires from overheating for even the fastest actuation, and additional sensors can provide the actuator status (LOCKED/UNLOCKED). In addition, Bluetooth or other wireless technologies can be easily incorporated to create smart IoT-ready ThinLocks.
A representative model in the new ThinLock TL-1 Series employs a 0.2mm diameter SMA wire with resistance of 4.28Ω, weighs 12 grams (0.4 oz), is only 3.75mm (0.15” thick) and has the operating characteristics shown.
ThinLocks are ideal for automotive glovebox and center console locks, video screen dropdown release, secure medicine dispensing devices, server enclosures latches, removable module catches, and many other applications.