Association With Control/Drive Circuits TRIZ Cases

A switched reluctance motor with push-pull surface drive delivers full stalled torque to free ESPs from sediment or heavy hydrocarbon jams.

A lateral inverter aligned with the motor shaft preserves upper space, simplifies bus bar connection, and reduces assembly effort.

Different housing thermal conductivities isolate brake heat from the speed reducer while dissipating heat from the motor and control circuit.

Combining the high-voltage interface with a centering element simplifies stator assembly while improving electrical connection and cooling.

Conductive flux barriers between rotor poles redirect magnetic flux through eddy currents to raise torque and power density without enlarging the motor.

Upper and lateral module placement around an offset gear mechanism shrinks the vehicle drive package while preserving layout flexibility and circuit performance.

Multiple heat dissipation paths raise cooling when semiconductor temperature climbs while preserving useful heat at lower temperatures.

Balanced phase-pair switching in an even-phase motor drive cuts frame current and EMI while avoiding complex parallel transistor matching.

An axial flux PCB stator motor integrates the VFD and shared airflow cooling to simplify AC connection and improve thermal management.

A metal member links the resin outer shell to a finned metal lid, improving stator heat dissipation so higher motor output is possible.

Overlapping offset stator coils between opposed magnet arrays cut torque ripple and cogging while preserving torque density and efficiency.

Magnetic transformer coupling and pulsed rotor excitation replace brushes, cutting wear and back-EMF losses in wound field synchronous machines.

A frame filled with silicone gel replaces rigid molding compound to reduce cracking, stress, and thermal fatigue in power module bridges.

A magnetically driven coolant agitator circulates liquid through a closed loop to cool compact pump motor stators and power electronics.

Built-in diagnostics in the motor terminal box use optical signaling to show motor health and load conditions with low commissioning effort.

Mounting the upper bus bar holder on the casing and joining bus bar terminals inside improves positioning, sealing, and motor compactness.

A PCB-stator motor with nested planetary and cycloid gears cuts seat actuator noise, mass, and packaging while keeping consistent positioning speed.

Radially movable stator segments increase rotor air gap during coil faults, limiting heat damage while the turbomachine keeps running safely.

By fastening the stator housing inside the controller housing, this case cuts axial length and shields fastening parts from corrosion.

Over-molded plastic endbells preload motor bearings to limit axial and radial play, improving shock and temperature resistance at lower cost.

Integrating rectifiers, capacitors, and switching devices onto a PCB stator simplifies two-phase motor control and lowers manufacturing cost.

Overmolded busbar elements simplify multi-phase motor connections, enabling flexible stator and inverter layouts with reliable insulation and sealing.

Nested inner and outer air gaps raise torque in a compact rotary motor, while integrated cooling limits heat from multiple windings.

Spaced first and second substrates shrink motor housing while resilient elements absorb vibration to cut noise and weight.

Pre-saturated inter-conductor members guide rotor flux along the intended magnetic circuit, reducing leakage and torque limits.

Current and speed variation in the oil pump reveals low motor cooling oil, enabling torque limiting to prevent overheating.

Coolant heated inside hollow stator windings is routed directly to a cold battery, cutting heat loss and simplifying EV thermal management.

Segmented air guide paths with larger inlet openings near the control unit protrusion direct more fan air to the hard-to-cool -Z side.

Rotor frame fins drive high-velocity internal airflow to cool the stator by forced convection when exterior housing cooling is insufficient.

An embedded fuse heats a nonconductive shaft to break rotor coupling during generator faults, preventing overheating in aircraft PM machines.

Multiple rotor coil units are reconnected by operating point to vary winding count, balancing torque and power with lower resistance and hysteresis losses.

A dual-capacitor buffer isolates support-coil current from DC bus pulsation, keeping non-contact shaft support stable during power failure.

A split water-passage layout cools the inverter, motor underside, and stored oil to overcome uneven heat removal in a vehicle drive unit.

A PCB stator motor and motion sensing simulate rotational inertia in a jog knob, restoring smooth haptic control in fly-by-wire systems.

An inductive sensor tracks anvil position so the controller can calculate drive angle and improve impact tool rotational output.

A protruding push button and lever steering let the motor run without constant pressing while enabling quick stops in unexpected situations.

Heat-transfer paths and non-conductive regions in motor boards improve solder fillet formation and cut terminal connection defects.

Measuring MOSFET switching time reveals drive-device faults and overheating early, reducing failure risk without oversizing components.

A compact motor inverter integrates battery self-heating and an absorption capacitor to improve EMC, cooling, and low-temperature EV operation.

Wire holes in the coupling shaft guide and secure core wires, simplifying hub motor cable assembly while avoiding damaging bend angles.

An arched support frame nests the battery pack around the motor to cut power unit height without reducing battery endurance.

A split main and sub PCB places the magnetic sensor closer to the can, shrinking valve size while preserving rotational angle detection accuracy.

A shared stator core paired with rotors of different pole counts cuts brushless motor production cost while preserving output characteristics.

A bent flexible wiring board replaces costly multilayer PCB power layouts to improve EMC in motor-driven rotating assemblies.

Variable conduction angle control helps a brushless DC motor hold target speed while cutting switch power loss and heat at high load.

Modular bobbin, elastic, and magnetic support structures prevent assembly deformation while preserving precise autofocus movement.

Sequential coil windings on multiple posts generate rotating magnetic coupling that keeps the blood pump compact for transvascular insertion.

A motor cover between the motor and controller keeps a loosened fixing screw engaged, reducing control board vibration and preserving fixation.

Integrated protection and signal conditioning improve resolver and Hall sensor coupling to AC motor controllers under overcurrent and overvoltage.

Integrated Hall sensor and light-pipe indicator show rotor-based operating modes clearly, reducing user confusion during tool use.