Magnetic Circuit TRIZ Cases

See how asymmetric magnetic division regions in a magnet orientation device counterbalance asym

See how injection-molded BMC resin integrates motor housing and fixing bracket to eliminate ali

See how a planetary gear air-cooling flow path with sun gear and rotor holes reduces motor heig

See how arc-shaped polar regions with offset magnetic focus centers increase back electromotive

See how asymmetric non-magnetic regions in an arc magnet orientation device symmetrize magnetic

See how arc-shaped polar regions with offset magnetic focus centers reduce magnet cracks while

See how a dual-rotor motor drives two fans independently at variable speeds and directions to i

See how a dual-rotor motor drives two independent fans in outdoor units, preventing air volume

See how a rotor core with composite arc portions and curved sections maintains linear air gap g

See how misaligning inner and outer stator teeth by a predetermined angle reduces torque ripple

See how optimizing coil turns to 100-140 and wire diameter to 0.6-0.8mm increases motor torque

See how a plastic reinforcing cap isolates stator and drive hub components to prevent short cir

See how segmented permanent magnets with uniform dead zones and optimized pole arc ratios reduc

See how a pole sleeve with varying wall thickness and magnetic permeability achieves 15 bar pre

See how a dual-rotor motor with 48 outer and 42 inner magnets shares 36 stator cores to indepen

A stator locating pin aligns with the bearing retainer to shrink rotor-stator air gap, improving motor efficiency and reducing magnet material.

Arc-type magnets, cutouts, and bridge placement raise magnetic resistance to cut leakage flux while preserving rotor rigidity and output density.

A helical spring insert closes the external rotor magnetic circuit while absorbing magnet tolerances to simplify assembly and cut cost.

Interference-fit caps and foldable insulation sheets simplify stator assembly, improve paper positioning, and free more room for copper windings.

Using three or more pole-shape variants in a line-symmetric rotor cuts torque pulsation without adding rotation-direction dependency.

Transfer molding creates a gap-filled barrier that lets rotor balancing disks use cheaper materials and wider material removal without harming magnetic units.

Cryogenic cooling lets Litz armature windings exceed 25 A/mm² while cutting electrical losses in high-power electric machines.

An epicyclic gear train boosts HVAC actuator ratio and torque in a compact package, allowing smaller motors and easier vehicle integration.

Offset radial protrusions create a defined adhesive gap in the rotor, improving concentricity, strength, and manufacturing yield.

A double-layer coil array raises conductor fill in a planar motor, cutting current demand and amplifier cost while preserving precise motion.

A bridging portion in the rotor core redistributes centrifugal stress to limit bridge deformation while preserving magnetic flux density.

Specific core-to-pitch and armature ratios raise linear motor thrust with ferrite magnets, cutting rare-earth dependence and cost.

Bent outer magnet slots redirect demagnetization fields in a synchronous reluctance motor rotor, protecting magnets and preserving inductance.

Right-angle lamination changes guide flux along steel plate planes, cutting eddy currents, heat, and magnetic resistance in electromagnets.

Different rotor sectors distribute potting compound and add retaining strength, securing permanent magnets without slow high-temperature curing.

An elastic annular shield inside the rotor blocks metal particles from entering the bearing while preserving free rotation and low friction.

A non-magnetic magnet cover suppresses leakage flux in an inner rotor, improving stator flux interlinking and motor characteristics.

Outlet-end radial bearings and an axially movable brake raise spindle braking torque, shorten response time, and save installation space.

A stepped plunger fills rotor magnet slots while preserving plastic flowability and preventing breakage during die separation.

Localized magnetic resistance portions on the rotor surface cut electromagnetic vibration while avoiding added windage loss and torque drop.

Localized magnetic resistance portions cut electromagnetic vibration force while avoiding added windage loss and preserving rotor torque.

Axially stacked magnet and non-magnet laminations cut torque ripple and heat while maintaining synchronous machine torque.

A cooling wheel creates outer overpressure and inner suction to drive defined airflow through the stator, improving heat dissipation and power density.

By moving the coil into the fixed body, this actuator reduces mirror heating while enabling compact, stable high-amplitude reciprocating rotation.

Multiple coil groups and coolant channels enable precise multi-axis vacuum positioning while limiting vibration, heat buildup, and eddy-current effects.

Mixed laminated through-holes reinforce IPM rotor outer core portions against centrifugal force while limiting magnetic flux leakage.

Spring-biased magnet retention compensates for rotor pocket tolerance gaps, limiting magnet wobble and reducing motor noise and vibration.

A two-row U- and V-shaped magnet housing layout raises torque density and power while reducing leakage flux and assembly complexity.

Coaxially stacked rotor assemblies with boss-fitted magnet slots cut rotor process difficulty while reducing torque ripple and electromagnetic noise.

Concentric magnetic bodies and overlapping cores raise generator power output without increasing diameter or overall device volume.

A carbon- or aramid-fiber armature cover cuts eddy current heating while protecting linear drive magnets from dust and wear.

Inner and outer molds heat and restrain adhesive-bonded laminates to improve divided core and ring-shaped motor core accuracy.

Magnetic barriers beside rotor magnet slots suppress quadrature-axis saturation, preserving torque density and overload capacity with less rare earth material.

A two-stage mold movement pre-adjusts for rotor stack height variation, then applies precise clamping for automated, consistent molding.

Biasing divided magnets against thicker core walls stabilizes rotor magnet placement, reducing torque ripple and simplifying manufacture.

An eccentric magnet layout keeps the tilting holder engaged, reducing magnetic interference, separation, and noise in camera OIS actuators.

Symmetrical rotor magnetic barriers enable rectangular magnet assembly while reducing torque ripple and preserving output torque.

Pre-bent curved rotor tabs secure IPM magnets without epoxy or coating damage, preserving magnetic integrity and lowering manufacturing cost.

A tensioned anchor retainer keeps IPM rotor magnets compressed at high speed while reducing flux loss and avoiding extra structural support.

Standard-pitch continuous stator windings maintain MMF balance while simplifying coil forming, reducing errors, and shrinking stator size.

Radial recesses in rotor magnetic pole pieces reduce flux leakage between adjacent magnets, lowering cogging torque and improving stability.

Opposing planar motors linked by connected transport units enable flexible multi-plane motion while coordinating paths to avoid collisions.

Separation layers and holding jigs split core laminations into blocks, reducing adhesive curing stress and laminated core deformation.

Grooved magnet receptacles and a non-conductive holding structure secure axial flux rotor magnets while limiting eddy current losses.

Cooling water and axial airflow passages keep rotor and coil-end temperatures in check, preserving output while reducing rare earth magnet cost.

Direct motor-to-driver coupling removes flywheels and return springs, improving fastening energy transfer and tool reliability.

Embedded magnets in a laminated axial-flux rotor resist heat and vibration, preventing detachment and preserving rotor stability.

Capillary-fed trickle resin fixes rotor magnets uniformly, avoiding adhesive leakage, oven curing, and heat-driven demagnetization.

Bent rotor slots and linked magnet pockets extend magnetic conduction paths to raise torque density while limiting saturation-driven power factor loss.

By nesting bearings and transmission parts inside the motor envelope, this power tool keeps high power and torque in a shorter body for confined spaces.

An annular chamber and plunger shorten resin fill paths in motor cores, cutting hardened excess resin and material waste.

Offset front and rear bridge positions and widths in an IPMSM rotor core improve flux control and reduce torque pulsation.

A fitted stator centring structure enables fast axial insertion with minimal tilting, improving pump-motor assembly accuracy and speed.

Pre-punch non-magnetization at stator tooth bridges cuts flux leakage, shortens processing time, and preserves core dimensions.

Pre-rotating the rotor to a low-attraction position stabilizes magnetic levitation, reducing vibration, wear, and contact in CT scanners.

Inclined lightening holes in an embedded magnet rotor cut inertia while preserving magnetic pole performance to improve torque response.

Overlapping tabs and separator plates join motor core blocks without welding, cutting eddy currents while maintaining block strength.

Alternating rotor holes with radial openings raise magnetic reluctance, cut circumferential leakage flux, and improve motor torque.

Higher coercive force at rotor magnet outer ends prevents rapid demagnetization at high temperatures without raising full-magnet cost.

Spacer elements set the stator-rotor air gap in axial flux machines, improving efficiency and durability without tighter part tolerances.

An eccentric bearing mount lets engineers tune rotor-stator air gaps after assembly to cut motor noise and vibration without sacrificing efficiency.

Continuous fiber straps and composite recesses retain rotor magnets against centrifugal force while cutting mass, overheating, and part count.

Auxiliary magnets placed in outermost hole voids redirect flux toward the d-axis, raising IPM motor torque without larger main magnets.

Radial through-grooves in a rotor yoke cut eddy current losses while preserving rigidity and accurate magnet positioning.

A nested dual-bearing layout cuts backlash and preserves stability and load capacity in a compact flat brushless motor.

Localized die protrusions concentrate load on motor core crimp portions, reducing iron core gaps without enlarging the crimping structure.

Adjacent-part holes let press-locking bulges interlock more than two metal layers without excessive deformation, preserving keyed connections.

Electromagnetic coils orient injected magnetic material in rotor cavities before solidification, removing discrete magnets, glue, and curing steps.

A stepped second air-slot structure reshapes rotor magnetic flux to cut back-EMF harmonics and torque ripple in alternating-pole motors.

Series-arranged magnets with different coercive forces and linked flux barriers cut d-axis inductance, raise reluctance torque, and limit demagnetization.

Foaming fixing members separate and press rotor magnet segments in place, preventing short-circuiting while reducing insulating material use.

Alternating magnetic and non-magnetic rotor layers cut rare-earth magnet use while preserving electric machine performance.

Perforated discs create axial resin flow between twisted laminated cores, securing magnets while preserving rotor torque density.

A carrier-supported shaft with fixed and floating bearings extends support distance, reducing tilt and improving motor stability.

A hollow-cylinder stator and alternating-magnet rotor combine rotary and lifting motion in one actuator to cut space, inertia, and wear.

Continuously curved magnet side surfaces cut cogging torque in axial flux door-drive motors, reducing noise and vibration.

A thin high-strength rotor sleeve secures surface magnets at high speed while preserving a small magnetic gap and avoiding magnetic short circuits.

A radially protruding contact surface and higher magnet-side molding pressure improve rotor magnet fixing strength and stability.

Alternating radial and tangential magnets create a hybrid rotor field that cuts electromagnetic noise and improves Back-EMF for FOC drives.

Partial slotting and fill bonding turn one magnetization block into tightly packed unit magnets, cutting waste and eddy current losses.

Temporarily coupled transport units in a planar motor boost driving and levitation force for heavier loads and more flexible motion.

Adjustable ferromagnetic rods magnetically center the moving magnet rider to cut side loads, wear, and alignment sensitivity in linear motors.

Nested bearings and an in-envelope support plate shorten the motor-transmission stack while preserving 430 W output and high torque.

Elastic tongues pre-load rotor magnets outward to stop displacement during handling and plastic encapsulation, preserving magnetic consistency.

A non-straight axial groove cuts eddy current paths in permanent magnets while preserving strength and simplifying rotor assembly.

A shorted auxiliary motor winding adds passive damping in steer-by-wire handwheel actuators during power-off conditions while preserving stability.

Transition wiring placed inside the stator tooth shortens coil connections, cuts Joule loss, and eases motor coil winding.

A built-in motor encoder with a linking rib keeps detector alignment tight, improving rotation-angle sensing for more accurate torque estimation.

A ring-shaped movable magnet and surrounding core-coil layout boost drive efficiency, amplitude, rigidity, and mirror heat isolation.

Flat interpole bridges in a rotor core lengthen the magnetic flux path to lower q-axis inductance and improve high-speed torque range.

Forming the slot-housed coil section before insulation coating prevents thinning, improves slot space factor, and preserves insulation integrity.

Localized punch protrusions near stator pole shoe edges create startup field asymmetry while limiting air-gap growth and efficiency loss.

A deformable tongue in the rotor sheet mechanically locks permanent magnets, reducing micromovement, noise, and magnetic flux loss.

A concentric pin-layer winding pattern simplifies stator manufacture while reducing field harmonics, torque ripple, and NVH in electric machines.

Varying ellipticity from inner to outer layers minimizes interlayer gaps while preserving enamel coating integrity during bending operations.