Interleaved magnets and flux concentrators reduce leakage to increase torque density for e-bikes.
A semi-trailer power generating unit recovers brake torque energy via a road-contacting wheel and onboard storage battery.
Ga-modified oxide layer covers grain boundary phase in R-T-B sintered magnet, preventing corrosive penetration while maintaining magnetic properties.
Annular recess isolates overflow resin to prevent flash and ensure proper hole filling.
Modular intermediate pieces with interlocking protrusions reduce manufacturing complexity while absorbing vibrations and noise.
Segmented distributed windings across nonadjacent slots minimize spatial harmonic losses in magnets and stator cores.
A conductor forming device uses a grooved restrainer to fold multiple unit wires into parallel wave winding coils.
An aperture through the stator enables non-contact infrared sensing of rotor temperature, avoiding power shutdown required by indirect estimation methods.