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High slot utilization systems for electric machines

United States Patent

June 23, 2009
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
Two new High Slot Utilization (HSU) Systems for electric machines enable the use of form wound coils that have the highest fill factor and the best use of magnetic materials. The epoxy/resin/curing treatment ensures the mechanical strength of the assembly of teeth, core, and coils. In addition, the first HSU system allows the coil layers to be moved inside the slots for the assembly purpose. The second system uses the slided-in teeth instead of the plugged-in teeth. The power density of the electric machine that uses either system can reach its highest limit.
Hsu; John S (Oak Ridge, TN)
UT-Battelle, LLC (Oak Ridge, TN)
11/ 463,970
August 11, 2006
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH This invention was made with United States Government support under Contract No. DE-AC05-000R22725 between the United States Department of Energy and U.T. Battelle, LLC. The United States Government has certain rights in this invention.