Method for winding rotor coils on motor without rotor core, comprises winding conductor of given length over an odd number of equivalent sections progressing around the resin rotor drum

摘要

A cylindrical rotor drum (6) made from resin has a central shaft (2) and is wound with coils (7) which define a sector. An odd number of coils of equal length are progressed by angular increments around the drum and given terminals and then further coil layers are similarly added to make the whole winding Independent claims are made for a motor which uses the method of winding rotors without a core.