Armotor

Armotor refers to a class of electric motors characterized by their rotor containing permanent magnets. This design contrasts with wound-rotor motors, where the rotor's magnetic field is generated by an electric current. The use of permanent magnets in the rotor of an armotor eliminates the need for slip rings and brushes, which are components found in brushed DC motors and some AC motor types. This absence of brushes and slip rings leads to several advantages, including reduced maintenance, increased efficiency, and a longer lifespan.

Armotors are commonly employed in applications where high performance, precise control, and energy efficiency are critical. They are widely used in electric vehicles (EVs) due to their power density and ability to provide strong torque across a range of speeds. Other applications include industrial automation, robotics, and high-end consumer electronics. The magnetic field generated by the permanent magnets interacts with the magnetic field produced by the stator windings to create torque, driving the rotation of the rotor. Different configurations of permanent magnet placement on the rotor exist, influencing the motor's performance characteristics. The development of advanced magnetic materials has significantly improved the capabilities of armotors, making them a cornerstone of modern electric propulsion and motion control systems.