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E-Circuit Motors

Applications

ECM has expanded on the advantages of axial gap machines to bring superior efficiency, power density and lower costs to variable speed electric motor driven applications.

Axial gap machines have superior attributes in many applications.  While permanent magnets and today’s power electronics have been applied to optimize both radial and axial gap machines, winding structures have been constrained by uniform wire diameter and geometry.  ECM has perfected a process that optimizes copper geometries and winding patterns that delivers superior efficiency at a reduced cost.

In 2015, ECM licensed patented technology that leverages the benefits of the global printed circuit board industry (PCB’s) as they apply to electric motors.  With PCB’s, motor winding geometry optimization can occur inside and outside the magnetic field.  This simple, cost effective and mature manufacturing process allows for the targeted reduction of resistance and eddy current losses, further increasing efficiency and power density of axial gap motor designs.

To properly optimize motor windings, ECM developed proprietary motor optimization and design software that fundamentally changes the way motors are designed.  The optimization code allows users to specify motor characteristics, and uses that input to deliver an optimized stator and magnet design that is immediately ready for production.  This significantly reduces design cycle and motor development costs. 

ECM has now filed numerous patents protecting significant and measurable Company advances.

ECM initial strategy is to partner with entities seeking to bring world class .25w – 15 kw solutions to market – larger power applications at higher voltages are a secondary, but still very promising strategy that ECM will pursue in 2017.

 

ECM is seeking partnerships in markets that have any of the following requirements:

  • 92%+ average operating efficiencies across broad operating points and 96%+ peak efficiencies
  • Shaft Speeds > 2000 rpm
  • Shaft power < 15kw
  • Cog-free motion and accurate positioning are required
  • Axial Gap form factor is an advantage
  • 12-120 Volts
  • Above attributes requiring lower costs
  • Present target / future targets
  • Benefits of Axial Gap design
  • Power ranges
  • Speed ranges
  • Voltage ranges