Magnetic Circuit TRIZ Cases

A magnet assembly with varying permanent magnet and ferromagnetic member thickness generates a spatially varying magnetic field distribution.

Extruding and compression molding segments with varying circumferential sections maintains high energy density while minimizing cogging torque.

Asymmetric 45-degree magnet arrays and 3:1 coil ratios cancel side forces, resolving efficiency trade-offs in compact lithography actuators.

Segmented cryostats with MgB2 coils eliminate single point failures and reduce weight for offshore wind turbines.

A linear and rotary cartridge system transfers pre-formed conductors into skewed stator slots for precise inside diameter winding placement.

A segmented actuator uses alternating magnetic polarizations to drive helical rotor movement.

A horizontal linear vibrator uses magnetic fields and springs to drive a weighted unit, enabling compact form factors.

Connecting armature windings to non-adjacent commutator segments maintains current balance and reduces vibrations in motor-driven power steering systems.

Elastic holding means secure magnets in carrier pockets, compensating for manufacturing tolerances while maintaining magnetic flux.

Merging segmented elastomer dampers into an integrated structure resolves interference during simultaneous installation while expanding damping volume.

Radial cuts in the stator support ring release hoop stress during heating and cold soak cycles, expanding operational thermal limits.

Integrating the rotor and spindle nut reduces external dimensions of drilling quill drives while eliminating complex hydraulic systems.

A rotation actuator uses a sliding ring as a thrust bearing to support the output plate while sealing grease within the reducer assembly.

Auxiliary cores positioned at specific distances from the center salient pole generate canceling cogging forces to smooth linear movement.

Holding member with opening allows orthogonal vibration of optical device, reducing interfering pattern generation without increasing projector size.

A double helix actuator uses a coil wound around a proof mass within alternating polarity magnets to generate linear force and torque.

Active current control stabilizes the rotor position in a rotational energy harvester, preventing co-rotation damage while maintaining high power output.

Symmetric magnet placement in a mass block ensures uniform distribution, reducing twisting and stabilizing vibration amplitude.

Non-magnetic fastening members secure magnetic components on a motor rotor turning axle, preventing detachment from environmental stress.

Oblique film removal surfaces on conductor segments allow radial welding, increasing turn density without expanding the stator axial height.

Gap portions around permanent magnets cause magnetic saturation at low currents to reduce iron losses while maintaining maximum torque at high currents.

Secondary magnetic bearing attracts rotor to minimize striking noise in small-diameter motors.

Non-uniform magnet thickness and curved boundaries reduce cogging torque by up to 60% while maintaining motor output.

A Bezier-shaped permanent magnet reduces cogging and ripple torque by optimizing magnetic flux density distribution across the air gap.

An intermetallic compound bonds the rotary device brush at low temperatures, preventing thermal damage to adjacent members while maintaining strength.

Magnetic brake coil on stator housing holds rotor disc via air gap for compact electric rotary units.

Diffusing Dy or Tb into divided Nd-base magnet pieces creates a high-coercive surface layer that resists demagnetization from eddy currents and heat.

Radially depressed grooves on a permanent magnet circumferentially equalize torque constant in galvanometric scanners.

Inclining the coil within the housing decomposes Lorentz force into orthogonal components, expanding the working band beyond single-direction limits.

Interlocking asymmetric rotor core divisions eliminate gaps that cause abrupt magnetic flux changes, reducing cogging torque and torque ripple.

Continuous particle removal from permanent magnets prevents magnetic field disruptions and mechanical speed variations that cause production downtime.

Segmented single-layer windings with radial heads resolve coil insertion difficulties while reducing copper usage.

Segmented flow passages deliver coolant directly to upper and lower stator regions, resolving uneven cooling caused by fixed portion blockage.

Stationary coils in a U-shaped yoke drive a passive ferromagnetic bar via Lorentz and reluctance forces, eliminating moving magnets and cooling requirements.

A concentric ring generator design integrates stator coils around a turbine rotor to enable efficient voltage regulation and variable frequency output.

Stator assembly uses electrical jumpers to create asymmetric current distribution, reducing acoustic noise and thermal hot spots in electric vehicle motors.

A complementary permanent magnet structure generates counterbalancing torques to minimize cogging effects in rotating electric machines.

End-face connection elements join winding sections across adjacent stator segments, eliminating complex coil installation and enabling easy segment replacement.

A tubular rotor core with an axial recessed groove optimizes magnetic flux paths near the sensor circuit board.

Segmented coil portions with opposing currents generate linear force while minimizing rotational moments.

Dual bearings support the rotor holder at different axial positions, reducing deformation and deflection in electric motor speed reducers.

A transformer integrated with a semiconductor structure uses merged BEOL steps to simplify fabrication.

Integrated magnetic bearings eliminate mechanical wear and thermal deformation, enabling precise positioning in compact designs.

A sprung web-shaped clamping element applies radial spring force to secure rotor magnets within laminated internal rotor cores.

Arcuate suspension members absorb radial electromagnetic forces to reduce surface deformation and acoustic noise in electric machines.

Multilayered permanent magnets and flux barriers in an interior permanent magnet motor rotor core reduce magnetic leakage while maximizing saliency ratio.

Flat wire turns stacked radially on rotor teeth reduce mechanical stress while increasing pole arc size and magnetic flux communication.