Belgium-based Mirmex Motor uses a proprietary approach to manufacture power-dense windings for electric micromotors. The printed circuits make for motors that are 50% more compact and 70% more dynamic than comparable slotless motors having conventional copper-wire windings — all with threefold less heat waste.
Mirmex provides bare windings, stators, as well as frameless and assembled motors in radial or axial-flux architectures, explained Francisco Diaz of Mirmex Motor at the recent MD&M West.
The motors excel in motorized surgical tools, active prostheses, drones, aerospace designs, precision industrial equipment, and robotics.
The performance of traditional motors depends on their copper windings — in turn quite long and challenging to wind … so during prototyping many are in fact assembled by hand. Then full production runs are done on oft-expensive and inflexible machines dedicated to a particular coil.
In contrast, Mirmex Motor winding patterns are created using AI algorithms and printed on strips of flexible circuit board that are then put flat into axial flux architectures or closed into tube for radial architectures. The manufacturing and validation are automated. By varying the winding’s conductor sizes, thicknesses, interconnections, and even the pattern itself, the winding can be optimized for different applications, environments, and constraints.
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