A Novelty Design of an Axial Flux Induction Electrical Machine with Low Manufacturing Cost

the paper considers a novelty design of an axial flux induction electrical machine that ensures high efficiency with relatively low manufacturing cost. The low manufacturing cost is based on the construction being made from a single thin pieces of electro conductive and magneto conductive materials. Thus a stator is defined from a spirally wound single sheet of electrical steel to form the greater part of the magnetic core of the stator with additionally formed trapezoidal sheets of electrical steel thus creating a magnetic core for the stator coils. In turn the rotor is itself made again with a spirally wounded sheet of electrical steel creating the main part of the magnetic core of the rotor. Again the magnetic cores of the rotor teeth are made from thinly cut sheets of electrical steel and the rotor cage is created by casting aluminum or copper and having on inner and one outer rotor bar rings to create the squirrel cage. Thus the construction does not require specialty tooling for the manufacturing of the main components even for different axial and radial dimensions of the machine.