A two-layer IPM rotor uses inner and outer magnet-hole angles to limit centrifugal stress while preserving torque and enabling rotor lightening.
Connection channels link rotor magnet-pocket clearances so one potting step fills them fully, vents air, and prevents imbalance.
A non-magnetic consequent pole rotor cuts power tool motor mass by up to 36% while preserving torque and speed in target operating regions.
Radiation absorbers between adjacent rotor or stator elements intercept thermal radiation, lowering temperatures and cooling load in wind turbine generators.
Curved concave magnet surfaces disperse assembly and vibration stress, stabilize positioning, and improve rotor anti-demagnetization.
A non-magnetic consequent pole rotor cuts magnet and motor mass while preserving torque and speed in battery-powered power tools.
Radial active coil sections and integrated flux guides simplify stator assembly while improving cooling, flux linkage, and efficiency.
A nested VCM combines autofocus motion and tilt-coil stabilization to correct handshake without increasing camera module height or volume.
A coaxial electric ring motor drives the rotor mast directly, cutting shaft-driven weight, space, and maintenance while preserving high torque.
Two coaxial propellers rotate in opposite directions to recover wake energy, limit cavitation loss, and improve cooling and durability.