Electric Machines TRIZ Cases
- Cold-Pressure Welded Coil Unit for Compact Stator Assembly
Cold pressure welding butt-joins the coil and bus bar to shrink the welded portion, simplify stator assembly, and improve resin coating uniformity.
- Outer-Rotor In-Wheel Motor Friction Coupling for Torque Transfer
A friction member between the rotor and detachable sensor mount improves torque transfer accuracy, prevents rattling, and seals the gap.
- Stator Core-Back Welding Layout for Low-Loss Deformation Control
Localized welding on stator core-back end regions suppresses deformation while reducing iron loss, noise, vibration, and added cost.
- NdFeB Magnet Composition for High Remanence and Coercivity
Balancing boron, rare earths, Cu, Ga, and Ti with two-stage sintering raises remanence, coercivity, and squareness in sintered NdFeB magnets.
- Outer-Rotor In-Wheel Motor Sensor Phase Positioning
A detachable sensor mount and positioning part restore the set sensor-magnet phase during reassembly, simplifying outer-rotor in-wheel motor repair.
- Stator Lamination Oil-Jet Cooling for Motor End Windings
Integrated stator cooling passages use laminations to seal and shape oil jets onto end windings, improving cooling while cutting seals, size, and weight.
- Hairpin Stator Coil Forming for Fast Multi-Model Production
Segmented forming machines shape vertex, bent, and rounded coil sections to speed hairpin stator coil production across multiple models.
- Linear Motor Magnetic Field Layout for Flux Leakage Reduction
A restricting part redirects magnetic flux through a soft magnetic member to cut side leakage and raise linear motor torque and thrust.
- Side-by-Side Phase Winding Layout for Lower Inter-Phase Discharge
Staggered hairpin conductors in side-by-side phase windings cut inter-phase voltage effects, simplify production, and extend motor life.
- Flat Copper Stator Winding Layout for Balanced Parallel Currents
A four-branch flat copper stator winding balances electromagnetic coupling to cut current loops, reduce copper use, and stabilize torque.
- Matrix Motor Unit Structure With Shared Stator Torque Coupling
Compact motor elements share stator parts and magnetic coupling to raise torque without the size, weight, or burnout risks of conventional designs.
- Curved Stator Tooth Geometry for Lower Eddy Current Loss
Curved stator tooth regions reshape magnetic flux to cut eddy current and copper loss in rectangular-wire motor coils.
- Segmented Flywheel Assembly for High-Speed Energy Storage
Offset openings and stacked flywheel elements reduce stress concentration, enabling higher-speed energy storage with lower fracture risk.
- Laminated Core Stacking to Reduce Tilt in Thin Motor Cores
Alternating core sheets with opposite thickness gradients reduces stacked core tilt, stabilizes the air gap, and lowers motor production cost.
- In-Wheel Motor Wiring Assembly for Compact Busbar Connection
Integrated busbar and power connector assembly reduces misalignment, wiring cavity size, and assembly cost in in-wheel motor drives.