PCB Coil-end Type Radial Flux PM-Motor

For electrically micro mobility applications, an axial-length shorten is required in viewpoint of coil winding area of distributed winding stator. In this paper, a novel PCB coil-end stator is proposed which is composed of bar type conductors and multi-layer printed circuit. First, schematic design of PCB stator and multi-layer coil pattern is explained. Next, the measurement results of proposed motor are demonstrated. Then, optimized rotor magnetic circuit design for PCB coil-end stator is revealed.