SQUIGGLE Micro-Actuator Module for Electronic Locks,
Latches and Intelligent Fasteners
SQUIGGLE motor technology is an excellent fit for use in
electronic locks, latches and intelligent fasteners. 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
The SQL-M Series SQUIGGLE Micro-Actuator Module
The SQL-M Series
micro-actuator
module is an electronic actuator ready for
installation in an OEM lock or latch mechanism. The actuator
assembly integrates an SQL Series SQUIGGLE motor with optical limit
switches in a compact polymer housing.
The actuator
is driven by the MC-4100 Series TTL motor controller, powered by a 3
V battery. An ASIC controller is under development.
We offer several module/controller configurations and work with OEMs to
optimize force, speed, power use and battery life for your specific
application.
Visit the micro-actuator module page or
download the SQL-M module data sheet
(256Kb PDF) for
additional information and specifications.
Electronic Locks and Intelligent
Fasteners
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 secure data centers and government buildings.
Electronic latches and protective interlocks are also increasingly
popular in automotive, IT hardware and other applications.
Intelligent fasteners are a relatively new and
disruptive technology. These fasteners are activated remotely by
radio signals with security codes, instead of through the direct
application of a mechanical tool. Such fasteners are non-obtrusive
and tamper proof, and make it fast and easy to install or change a
sub-assembly. Applications abound in aerospace, defense, automotive,
and industrial markets.
For example, intelligent fasteners could
prevent theft of airbags and electronics in autos, since the proper
security code would be required to unlock the fasteners.
Installation is also faster and less tedious than crawling under the
dash with a screwdriver. (Learn more:
Intelligent Fasteners, Design News 10-20-2003)
Both the electronic lock and intelligent
fasteners markets are served today by two mature technologies: shape
memory alloys (SMAs) and solenoids. The SQUIGGLE motor offers
significant advantages over both of 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. other piezo motors
The SQUIGGLE motor is simpler to integrate than other piezo
motors offered for the electronic locks, latches and intelligent fasteners
markets. 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
The SQL-M Series SQUIGGLE micro-actuator is recommended for intelligent
fasteners and electronic locks. See the
micro-actuator modules page for details and specifications.
Our engineering team works with yours to design custom modules for
your application, including mounting and drivers.
Contact us for more information.
