Association With Control/Drive Circuits TRIZ Cases

See how a miniaturized motor assembly uses reversible rotation and dynamic torque control to ha

See how a separate auxiliary bearing coaxial to the main bearing enables even rotor-stator clea

See how axial alignment of the air inlet with openings in the elongate central support body ena

See how a single interference suppression board positioned between shaft bearing and commutator

See how integrating EMI filter and snubber circuits into a bus bar assembly shortens reflux pat

See how a controller determines contactor timing to transition a compressor motor from inverter

See how rigid conductive connectors replace flexible wiring by directly fixing motor and batter

See how a pull-rope actuator extends through the travel unit to enable ground-level manual cont

See how optimized diameter, flux density, and winding turn ranges resolve the contradiction bet

See how semi-closed bearing mounting cavities and segmented air ducts protect motor bearings an

See how a ferrite magnet rotor with sinusoidal commutation and thermal sensors replaces rare-ea

See how a segmented aluminum housing, air guide enclosure, and seal-bushing assembly prevent mo

See how a linear drive controller housing merges mechanical mounting and electrical connection

See how a common positioning aid fastens two coil bodies with precise lateral alignment to impr

See how inductors on low-voltage and high-voltage power lines reduce electromagnetic noise in b

See how a brushless motor blender uses segmented air chambers, separator bridges, and heat sink

See how merging interference suppression, brush carrier, and sensor boards into a single integr

See how an integrated support projection in the resin case eliminates screws and caulking for c

See how a counter-rotating motor uses one inverter to control dual rotors with opposite phase w

See how dual seal portions between case, cap, and body prevent external air from reaching the c

See how a pivot-arm locking element with cam engagement replaces friction-based motor locks, re

See how axial flux motor geometry with damping coupling enables flat furniture drives that inte

See how a relay in the DC circuit loop breaks the electrical path when the blower motor is idle

See how a communicating passage between board storage and connector portions enables pre-shipme

See how an insulating member between power module and bolt head increases creepage distance to

See how a double annular seal structure with axially separated seal parts attenuates refrigeran

See how an intermediary capacitor and segmented snubber circuit bypass high-frequency switching

See how a ferrite magnet rotor with sinusoidal commutation replaces rare earth magnets to cut n

See how integrating water container mounting into the electromotor end cover simplifies housing

See how dual-rate motor speed control reduces rotational speed variation during battery pack sw

See how standby current sensing and relay cutoff prevent motor carbonization caused by IPM shorting in washing machines.

See how a disturbance observer estimates load torque in advance to improve responsiveness and s

See how a vibration damping module decouples the motor from the housing, filtering vibrations a

See how a single inverter controls dual rotors with opposite phase sequences, eliminating brush

See how measuring pump motor load current detects water shortage in robot cleaners, eliminating

See how a BLDC motor pump integrates a heat exchanger into the stator housing to recover waste

See how electrical parameter scanning and correction factors enable motor-controller calibratio

See how motor driving pattern control generates recognizable operation noise to deliver battery

See how a detachable motor assembly and dual-wall vacuum container enable powerful blending wit

See how separating noise detection and cancellation circuits onto independent substrates enable

See how concave positioning features and integral resin molding reduce contact thermal resistan

See how a single mounting bracket holds power supply and filter boards on opposite sides to red

See how housing protrusions guide airflow locally to suppress vortex generation in high-speed i

See how a 0.4–0.55 rotor-to-stator diameter ratio with optimized magnet slots balances low-spee

See how a pluggable sensor module integrates into motor electronics to eliminate external wirin

See how a neodymium iron boron rotor and 35-40 mm fan blade enable vacuum motor speeds above 10

Airflow-facing power components and separated PCB layers cool high-current elements and shield control signals from EMI in handheld vacuum motors.

A snap-fit motor cap and gear plate turn aerosol dispenser drive parts into one insertable module, cutting assembly labor and keeping gears aligned.

An integrated stator case seals the motor against water while vortex wings block debris ingress, cutting seal parts, cost, and assembly work.

Integrated temperature sensing, motor control, and sealing plugs simplify hot water pump installation while reducing wiring errors and water ingress.

A laminated pole-piece stator reshapes flux in dishwasher pump motors to cut demagnetization and Joule losses while keeping mechanical priming.

Resistance-welded bus bars replace solder and screws in an integrated electric compressor to keep motor and power connections stable under heat and vibration.

A protective inverter cover blocks fastener access and cuts controller power when removed, reducing compressor safety hardware and shock risk.

A heat sink mounted in axial extension of the stator supports the control board, cutting washer motor wiring while preserving cooling.

Segmented pole pieces with axial laminations spread flux more evenly, cutting demagnetization and Joule losses in two-phase synchronous motors.

An integrated motor support and heat dissipator cuts control board bulk, improves vibration reliability, and lets one tub fit both rotor types.

Magnetic sensors track opposing moving masses in a bi-linear electrodynamic motor, enabling in-mission balancing and lower residual vibration.

Bare-chip IGBTs and diodes shrink the compressor power board while placement along the housing improves refrigerant cooling.

An integrated motor support and heat sink cuts control board bulk while letting one washing machine tub fit both rotor types.

A crimped heat sink bonded to the EPS housing improves ECU heat dissipation while keeping assembly simple, reliable, and cost-effective.

An integrated motor and battery power head uses airflow vents and dual fans to simplify assembly while reducing heat, noise, and pollution.

Directly bonding stator winding wires to a rigid PCB carrier cuts stranded-wire assembly steps, saves space, and adds stable plug-in connections.

Localized induction heating expands rotor or stator inner surfaces for faster interference-fit assembly without oven heating.

Integrated fins, a recessed wire-routing void, and a cantilevered arm improve PCB heat dissipation and reduce short risk in power tools.

A post-and-coil magnetic drive with a back plate shrinks intravascular blood pump diameter while preserving hermetic blood isolation.

Integrated stator sensors between concentrated winding blocks measure rotor position and temperature without bulky shaft-mounted sensors.

A tapered interference fit joins steering housing parts with lower process force, reducing leaks, space use, and assembly complexity.

Integrated housing, heat sink, and PCB guides align press-fit terminals with through-holes to prevent buckling and lower assembly cost.

A compact coil-magnet lens actuator uses sensor feedback and nested parts to improve focus and OIS positioning accuracy without sacrificing reliability.

Bonded cover-to-case sealing encloses the movable switches, blocking dust and water ingress while keeping heat-generating parts outside.

An enclosed cover and guided through hole keep dirt out of the bus bar fitting area, reducing short-circuit risk and contact resistance.

A capacitor inside the load connector grounds high-frequency EMI while blocking shield current that causes localized heating in aircraft wiring.

Gradual dynamic braking release stabilizes a motorized wheelbarrow during drive transitions, reducing speed fluctuation and improving safe handling.

Separate insulating shells let coolant remove heat from motor electronics while blocking electrical conduction that can cause overvoltage and faults.

A casing with integrated fixation and electrical connection points lets expansion units be attached or removed easily while reducing assembly complexity and cost.

Dual-side battery insertion connectors link the motor and control unit without external cables, saving space, cutting weight, and improving shock resistance.

A cover with axial and radial openings over most of the inverter area improves cooling while preserving strength, protection, and compact machine layout.

Hydraulic dual wedges brake and disconnect a permanent magnet generator shaft quickly, stopping fault feeding during high-speed operation.

A modular PCB stator axial flux machine pairs with a fixed-size VFD housing and flexible conduit to cut weight, volume, and tooling changes.

An elastic member absorbs filler expansion inside the case, limiting circuit board warpage and preserving heat dissipation in an electric work machine.

Using the pump's delivery fluid as coolant, this case shows how integrated channels and flow control cool motors and power electronics.

Conductive pads and retaining elements create compact, accessible HV busbar joints between a power module and dual-stator machine.

Separate interface PCBs from core power electronics to support different electric motors with fewer variants, lower cost, and full functionality.

Stacked rail phases embedded in plastic maintain isolation and creepage distance while fitting stators and reducing contact pin breakage.

A permanent magnet elevator drive cuts weight and shaft space with an outer drive zone, passive cooling, and single-person installation.

Estimate electrical machine temperature from existing current data to derive reliability parameters without extra sensors or heavy MTBF computation.

By overlapping the inverter with the arm connection line, this electric wheel layout cuts kingpin offset, avoids arm interference, and improves stability.

A dual-board pump controller translates RS485, Bluetooth, WiFi, and other protocols to keep remote pump control compatible and reliable.

Integrated dual circuit boards bring control and sensing inside the motor, reducing external controller complexity and improving stability.

Dual motors, flexible rings, and feedback control add portable power assist to manual wheelchairs while preserving steering and adaptability.

FOC-based braking control absorbs braking current in motor windings to avoid voltage spikes and reverse bus current without extra bleeder circuits.

Wireless power and data transfer let linear transport tools use modular electronics, easing tool exchange and firmware updates without disruption.

An elastic spacer between the switching unit and housing cover damps axial vibration and reduces brake or steering motor noise.

An inner-groove O-ring seal lets the inverter case expand radially, increasing housing volume without adding axial length.

Routing the wire harness along the axle and related members reduces swing-induced strain and contact, improving durability between vehicle units.

Stored actuator board settings let a replacement motor controller self-configure, avoiding manual setup errors and reducing spare variants.

Magnetic field sensing and phase-shift correction remove runout components from jittered pole signals to improve rotary encoder accuracy.

An internal oil passage in the motor-inverter coupling links both motor ends, cutting separate piping, housing complexity, size, and weight.

Separate motor and electronics airflow paths use a heat sink, duct, and auxiliary fan to control heat even when the motor is idle.

An oblique-axis eccentric bolt clamps stator and inverter line ends in tight motor spaces, improving assembly access and tolerance compensation.

Axial electromagnetic forces from conical rotor-stator geometry balance pump thrust loads, reducing shaft displacement, vibration, and wear.

Current signals are used to estimate machine temperature and derive reliability parameters without extra sensors or heavy MTBF computation.

Multiple insertion holes let one motor substrate fit different terminal pitches while keeping shaft position unchanged and reducing design variants.

Multiple handle load sensors let the control circuit detect grip state and adjust motor power to reduce kickback without extra signal paths.

Position-based switching of stator electromagnets boosts cycloidal gear torque density, cuts repelling pole losses, and enables freewheeling.

A shield-piercing control board mounts the EMI filter directly, cutting wiring boards, size, and cost in electric power steering motors.

Vanes and a discharge passage purge stagnant air from the motor housing air pocket, improving fan motor cooling without added size or weight.

An overmolded outer rotor integrates magnet retention and an axial fan to boost compact brushless motor output and airflow for finish nailers.

AC sensor plates in the shared motor-inverter oil path detect metal and water contamination early to protect bearings, power switches, and fluid reliability.

Integrated sensors and control algorithms track pump speed, fluid clarity, temperature, and current to enable proactive maintenance.

A horizontal motor layout cuts pump-to-jacket height, enabling a smaller cooling pump while maintaining motor, reducer, and inverter cooling.

By overlapping the tooth-contact and meshing sections, this rotary reduction actuator cuts gear shaking while keeping the axial package compact.

Rotationally symmetric iron-core coils with controlled gaps balance phase inductance, cut magnetic leakage, and simplify reactor assembly.

Segmented stator cores with varnish and adhesive improve cooling, dust resistance, and coil durability in brushless hammer drills.

A soft outer waterproof layer fills lead-wire deformation gaps under pressure, blocking liquid ingress while keeping the assembly replaceable.

Coolant flow spins a turbine to drive the oil pump, cooling the inverter and rotary machine without a separate electric pump.

An elastic spacer between the switching unit and housing cover cuts motor noise and vibration while protecting bearing life.

An intermediate plate, centering pins, and thermal paste improve gear guidance, heat dissipation, and actuator life under vibration.

A cup-shaped recess and holding structure simplify stator core positioning, improving magnetic levitation rotor integration and assembly precision.

A recessed substrate and insulator protrusion isolate the motor connection space, blocking foreign matter while simplifying conductor-to-land assembly.

Phase angle monitoring identifies ESP permanent magnet motor backspin direction, preventing shaft damage and surface shock risk.

Current-demand feedback balances torque in mechanically paralleled motor drives without inter-drive buses, improving fault tolerance and recovery.

Split rib regions on the inverter cover shift resonance and cut motor-induced noise across varied vibration conditions.

Housing neutral-point wiring inside the inverter case cuts switching noise leakage while preserving current flow between power storage units.

Direct capacitor connection removes intermediate cables in externally excited machine drives, cutting EMI, stray inductance, and assembly cost.

Potting compound constrains the hub, seals cable glands, and fully surrounds the controller to prevent movement and environmental exposure.

A shaped ferromagnetic stator part boosts Hall sensor field gradients to improve rotor position accuracy and reduce torque oscillations.

Segmented OIS magnet polarities confine flux in a camera module, cutting electromagnetic interference while supporting a thinner actuator.

Separate connector and cover assembly enables visible PCB terminal inspection, while frame load-bearing portions protect press-fit contacts from wear.

A contact adapter and bearing-plate plug layout simplify brushless motor assembly while preserving reliable electrical contact despite tolerances.

Symmetrical dual motors drive the pull rope reel to offset exercise vibration while enabling adjustable pull force and lower motor load.

Electronic control of a direct-drive motor replaces bulky mechanical resistance parts, enabling precise pull-force adjustment in compact fitness equipment.

Periodic gravity-assisted shaft rotation prevents false brinelling, lubricant separation, and bearing damage in stored electric motors.

A six-phase ferrite spoke-type motor uses offset three-phase windings to cut torque ripple and rare-earth cost while maintaining truck torque.

Independent inverters keep a dual-winding PMSM actuator running after phase faults, reducing coupling stress and preserving control stability.

A mechanically switchable electric machine shares power between two engine spools, cutting weight and machine count through selective gearbox coupling.

Sheet insulation placed between overlapping partial windings preserves inter-phase and ground insulation under high voltage while limiting dead space.

Multi-directional elongated mounting holes absorb motor-to-module busbar misalignment, simplifying connection without precise lead control.

Gradually limiting PWM depth before active short-circuit mode suppresses inductive current spikes and protects rotor magnets and inverter switches.

A curved motor phase terminal concentrates the magnetic field at a coreless sensor, improving current measurement accuracy with lower complexity and weight.

A third PCB bridges two stacked boards through built-in contacts and conductive paths, cutting connector space, cost, and manual assembly.

Routing the electric wire along the axle, torque rod, and cross member limits swinging and bending to protect wheel-side harness durability.

Variable straight-portion dimensions in a wound field rotor cut pole interference, reduce dead space, and allow more inner-side turns.

Separating lead wires and crossover wires in opposite axial directions cuts stator length and simplifies winding connections in rotary electric machines.

Wireless rotor-mounted drive control replaces frequent stator switching, simplifying multi-rotor direct drive layouts and lowering cost.

A stator-wound braking coil replaces external resistors and heat sinks, cutting power tool motor cost, size, and thermal complexity.

An integrated terminal block and refrigerant path improves stator cooling, removes trapped air, and keeps the rotary electric machine compact.

Controlling dislocation defects in sintered silicon nitride bearing balls improves inverter motor durability under fluctuating loads and electrolytic corrosion.

Phase-shifted multi-three-phase inverters cancel common-mode voltage and cut DC ripple, shrinking EMI filters and DC link capacitors.

A shared control unit and capacitor placement between aligned damper motors cuts active suspension installation space without losing control functionality.

Integrated sensors and control algorithms track pump speed, temperature, current, and fluid clarity to detect shocks, contamination, and efficiency loss.

A switchable free-wheeling circuit isolates the secondary side during faults and returns rotor winding energy to the primary side.

Segmented field windings and electronic switching let an alternator match load demand, cut field losses, and keep operating after coil damage.

A through-hole bus bar fixing layout cuts inverter axial size in electric compressors while keeping motor cable connection simple and clear.

Circumferential heatsink protrusions and fan-driven channels steer airflow into motor compartments without extra parts, cutting size and cost.

Discrete ON/OFF and speed pads isolate sliding contacts to resist debris shorts and prevent inadvertent cordless tool start-up.

A shaft-mounted safety lever and controller detect uncontrolled spinning in a battery-powered trowel and shut down the motor or disconnect power.

Modular motor and ESC assembly with fixing rods fits tight aircraft space while lowering assembly cost and easing maintenance.

Built-in airflow channels and a centrifugal fan cool an integrated aircraft motor and controller without added water-cooling weight.

A shared helical cooling channel in an additively manufactured motor housing cools the stator and inverter together to cut weight and thermal complexity.

Variable-duty slow braking and speed feedback keep reverse motor shutdown controlled, avoiding over- or under-loosening of fasteners.

Embedded grooved conductor lead-throughs and molded collars block media creep to the controller while tolerating vibration and thermal shock.

Dual parallel motor control circuits let an MDPS ECU switch to a backup path after a fault, maintaining steering motor control stability.

A mid-frame terminal box layout shortens wiring paths, saves housing space, improves cooling airflow, and helps block moisture ingress.

By nesting the capacitor beside multiple rotating bodies, this motor unit cuts size while limiting heat transfer and supporting cooling.

A split PCB control unit keeps core power electronics standard while adding interface boards to cover multiple motor types with fewer variants.

A cascaded active filter uses a power stage and a precision stage to suppress wide-bandwidth automotive EMI without bulky LC filters.

Temperature-based torque allocation lets one motor compensate for the other, limiting overheating while maintaining total steering drive torque.

Intermeshing arc or cycloid contact surfaces increase impact area in an impact wrench, improving force transfer and reducing block wear.

An insulating busbar coating extends creepage distance, preserving DC isolation while enabling tighter spacing and lower-inductance EV inverters.

Segmented vents and dedicated fans manage engine and electrical-component heat in an RV-integrated generator enclosure.

A dual-attachment motor layout separates electrical equipment from the motor to improve mounting flexibility, compactness, and vibration control.

Mounting the controller in the angled space between the motor and transmission cuts powertrain size, height, and wire harness length.

A cured-in-place seal fixed to one housing surface prevents fluid ingress while allowing the inverter cover to be removed without gasket damage.

Opposing current paths in P, N, and output busbars cancel magnetic fields, cutting parasitic inductance while preserving switch layout freedom.

A conductive link grounds the metal cold plate through the cooling structure, cutting static charge and impurity deposition that degrade heat exchange.

By integrating contactless energy transfer inside the rotor, this case removes slip rings to save axial space, reduce wear, and sustain efficiency.

Radial and axial magnetic elements form a magnetic tunnel that preserves flux linkage on all coil facets while allowing free rotor rotation.

Motor-base concave sections keep the enclosing layer uniform around PCB components, reducing thermal stress, loosening, and fan failure.

A parallel constant-voltage diode clamps short-circuit stress on the overcurrent sense resistor, reducing burnout, fire, and smoke.

A stacked cooling assembly routes shared coolant through motor and power module heat sinks to cut thermal management complexity and cost.

Parallel stator windings and a PCB-based delta or series connection raise BLDC motor power density while improving torque and thermal efficiency.

A recessed capacitor housing uses thermal conduction and a communication passage to dissipate heat and relieve vapor pressure before explosion.

A rib-defined air passage accelerates fan airflow over the control unit, improving heat dissipation for higher-current circuit boards.

An embedded stator and partitioned housing shrink electric oil pump size while cutting parts, leakage risk, and pump noise.

A detachable inverter housing lets compact motor units keep integrated packaging while improving inverter access for inspection and replacement.

A hollow rotary casing encloses blade shafts for hull-side servicing while integrated cooling and sealed bearings cut downtime in marine propulsion.

Cooling channels in the junction box and elastic retainers keep emotor phase bars cooler, stable across tolerances, and resistant to vibration.

Orientation sensing lets the motor estimate bearing and lubricant life, adapt cooling, and reduce moisture risk across installation positions.

Bluetooth remote control lets users monitor and adjust AC motor speed and direction without internal rewiring across power modes.

A 54V low-impedance battery pack matched to a large brushless motor enables 3-5 kW cordless tool output for heavy-duty work without AC power.

A standardized modular VFD enclosure decouples power rating from size, cutting volume, weight, and tooling across PCB stator axial flux motor variants.

A sealed PCB housing box, rubber pads, and epoxy molding keep the motor drive circuit waterproof while press-fit rings simplify protective net assembly.

Using SiC MOSFETs in the DC/AC stage and Si IGBTs in the DC/DC stage cuts inverter cost and thermal losses in excited machines.

A compact dual-motor and PCU layout shortens wiring, reduces assembly effort, and improves vehicle packaging around the drive shaft.

A dual-battery layout lets the tool keep driving its motor while the communication unit receives firmware updates, avoiding downtime during FOTA.