Electronic Locks and Latches
SQUIGGLE motor technology is an excellent fit for use in
electronic locks and latches. SQUIGGLE micro-actuator modules
offer:
- Small size - 1/4 to 1/2 the size of other actuators
- Higher power efficiency
- Long travel
- High force and speed
- High reliability
- Operation from -30 to +80°C
SQUIGGLE Micro-Actuator Modules
SQUIGGLE micro-actuator modules can replace solenoids, stepper
and DC motors where smaller size and lower power draw are needed.
These applications include electronic locks / electronic access
control, interlocks and latches.
These applications typically require fast, limit-to-limit motion.
Combining a SQUIGGLE micro motor with forward and reverse limit
switches allows the motor to move quickly between "locked" and
"unlocked" positions. The motor holds its position with the power
off.
We can create modules that are 1/4 to 1/2 the size of
solenoids, draw less power, and offer higher force and longer
stroke.
We work with OEMs to
optimize modules for your specific application. We'll help you
navigate the trade-offs among force, speed, size, power use, battery life
and other factors to best meet your requirements.
Electronic Locks and Latches
Electronic locks and latches are familiar to anyone who has
used a hotel key card or remotely unlocked a car. Electronic locks
are proliferating rapidly, as they provide excellent access control
and flexibility. Examples include computer-managed and biometric controlled access systems for
pharmaceutical cabinets in medical facilities, to
systems that schedule and control access to
critical areas in places such universities, airports, secure data centers and government buildings.
Electronic latches and protective interlocks are also increasingly
popular in automotive, IT hardware and other applications.
The electronic lock and latch markets are served today by mature technologies
such as DC motors, shape
memory alloys (SMAs) and solenoids. The SQUIGGLE motor offers
significant advantages over these technologies.
SQUIGGLE motors vs. shape memory alloys
SMAs move by changing length (by about 3%) when
heat is applied. The main advantage is low cost, about 40 cents in
volume. Compared to SMAs, SQUIGGLE motors offer:
SQUIGGLE motors vs. solenoids
Solenoids provide longer stroke length and
higher operating temperature than SMAs. However, they are relatively
large and move in only one direction. As a high-performance
alternative to solenoids, SQUIGGLE motors offer:
-
half the size
-
bi-directional operation
-
off-power hold
-
lower power usage
SQUIGGLE motors vs. DC motors
The smallest DC motor that can effectively operate in a
lock/latch application is 8mm x 10 mm. Whenever space is at a
premium, the SQUIGGLE motor should be the choice.
SQUIGGLE motors vs. other piezo motors
The SQUIGGLE motor is simpler to integrate than other piezo
motors offered for electronic lock and latch applications.The SQUIGGLE motor’s screw pushes the load without need for
sliders and guide bearings, and remains solidly in place with the
power off.
Learn more
Read the article
"Piezoelectric motors save power and downsize electronic access
control" in Industrial Embedded Systems magazine
Our engineering team works with yours to design custom modules for
your application, including mounting and drivers.
Contact us for more information.
