Berkshire-based Codelocks has produced a lock based on a piezo actuator from Servocell of Essex.

“It uses piezo electrics for the first time in a stand-alone electronic lock and provides a battery life of over 500,000 operations,” said a Codelocks spokesman. “The piezo latch mechanism requires 66 times less power than a solenoid driven clutch mechanism.”

Codelocks’ model 5000 Electronic, is designed for commercial buildings, schools and hospitals. Battery life is claimed to be over 500,000 operations.

A basic actuator runs from 6V and contains a flyback generator to obtain the necessary high voltages.

“Next month we’re launching a product using the Dallas 1-wire technology,” said Simon Powell, business development manager at Servocell, which will give every lock an individual address.

Inside the actuator, a piezoelectric element gives 1.5 to 2mm movement at 1N force - enough to trip the internal lock mechanism. Powell claimed the lock module can withstand tonnes of pressure despite the low force available from the actuator.

www.codelocks.co.uk
www.servocell.com