Novel synchronous linear and rotatory micro motors based on polymer magnets with organic and inorganic insulation layers

摘要

In this work, we show the development of several synchronous motors with rotatory, ID or 2D movements. The synchronous micro motors are brushless DC motors or stepper motors with electrical controlled commutation consisting of a stator and a rotor The rotor is mounted onto the stator adjusted by an integrated guidance Inside the stator different coil systems are realized, like double layer sector coils or special nested coils, The coil systems can be controlled by three or six phases depending on the operational modus Furthermore, inorganic insulation layers were used, which reduced the system thickness. By this means four layers of electrical conductors can be realized especially for the 2D devices. The smallest diameter of the rotatory motor is 1 mm and could be successfully driven.