Association With Control/Drive Circuits TRIZ Cases

Partition wall portion blocks lubricating oil leakage to maintain soundproof performance and reduce manufacturing costs.

Motor wires route circumferentially to reduce stress from acute angle bending while minimizing axial projection.

Integrating electrical cables within the stator assembly suppresses excess deflection while maintaining compact device complexity.

Segmented sealing prevents refrigerant leakage from reaching electronic parts, maintaining reliability without enlarging the device mounting area.

Relocating the connector to the first axial end reduces radial dimensions and suppresses interference with peripheral equipment.

Mounting electronics on a rotating fan wheel with thermal insulation protects components from motor heat while maintaining structural integration.

Real-time vector generation eliminates external computing complexity while enabling continuous adaptation to mechanical and electrical changes.

A diode-based suppression circuit blocks ground potential differences to prevent cascading failures in electronic control devices.

A ceiling fan motor circuit box features external openings for lead wire connections.

A segmented short bar connects motor drive units through relative thickness movement.

Segmented housing isolates heat-generating circuits from the motor, reducing thermal accumulation in harsh environments.

A cooling plate merges with the oil-tight partition wall to conduct heat from the circuit board.

A blower device uses a bypass flow path to reintroduce air from the housing gap to the fan surface for pressure balancing.

Plastic pin support members prevent thin connection pins from bending during automated assembly, eliminating manual labor and reducing production time.

A BLDC motor overload detection apparatus measures the difference between electrical and mechanical angles to identify stalling conditions without extra sensors.

Radial fins on an external base increase surface area for heat dissipation, resolving internal space constraints in small electric motors.

A drive device positions a rotation sensor at the motor axis and switching elements along the wiring board edge.

A motor housing integrates dedicated heat dissipation sections to mount power conversion and power supply circuit boards directly.

A thermal-conductive component transfers heat from heating elements to mechanism components in an integral electric power steering device.

A printed circuit board assembly uses a dedicated conductor to distribute current flow, reducing heat buildup that causes housing malfunctions.

An axial flux electric machine uses thrust bearings to support the shaft and stator housing for thermal contact.

A U-shaped housing arranges the motor, power source, and main control board to reduce overall length.

A crimped sheath secures radial magnets on a brushless DC motor rotor to minimize the air gap.

An axial drive apparatus stacks the motor case, heat sink, and power module to shrink radial size while maintaining electrical connections.

A retractable stab assembly uses a motor-driven lead screw to extend and retract electrical stabs within a motor control unit housing.

Segmented cover ribs prevent deformation while spaced glass jigs exclude foreign material during laser welding.

Axially aligned motor lamination slots route control lines through the motor, eliminating external tubing space conflicts and protecting cables from damage.

Variable switched-on and switched-off time periods reduce energy dissipation in the control circuit while maintaining compressor dynamics during load changes.

Ironless heteropolar motor design eliminates series balancing complexity and conductor losses in electric vehicle powertrains.

A sensor substrate mounted between a stator and housing enables precise rotor position detection in compact brushless motors.

Deflectors create helical fluid paths that distribute heat evenly across the stator chamber while maintaining lower pressure losses compared to direct flow.

Inclined cover with flux cancellation protects motor sensors from magnetic fields and foreign matter.

Shifted pole boundaries create a unique magnetic signature that resolves absolute position ambiguity in rotary joints without requiring uniform spacing.

An auxiliary unit connector plug integrates a stator body contact element to provide direct electrical grounding.

End-mounted multiphase series converter circuit energizes fractional slot concentrated winding coils for efficient motor operation.

Segmenting the housing isolates the electronics from moisture and dirt ingress while maintaining cooling through the wall.

An inverter unit integrates a cooler with switching elements and positions a control board for efficient thermal management.

A motor control device uses a shared capacitor to smooth voltage from both boosting and inverter circuits.

Integrated stator design merges pole pieces and connectors via injection molding, reducing part count and production costs.

Placing a flux detector on the stator avoids rotor wiring complexity while providing accurate temperature data to prevent demagnetization.

Pulsed short circuits stabilize voltage during external driving, reducing start-up times and eliminating dead times in control devices.

A tubular coil encases a row of electromagnets powered sequentially by a controller to induce electricity.

An encoder uses a switching unit to provide battery backup voltage when driving circuit power drops, maintaining turn number counting without mechanical gears.

Local bases and elastic members absorb vehicle shocks to prevent solder rupture and short circuits without increasing compressor weight.

Sheet-like elastic member simplifies assembly by eliminating stress on welding surfaces while improving space utilization.

Segmented housings with integrated hooks resolve coupling security versus ease of manufacture trade-offs.

Merges multiple sealing rubbers into one integrated ring to reduce device complexity and manufacturing cost while maintaining watertightness.

A pump group integrates a sealed stator chamber filled with cooling oil to enable convection heat transfer for the electric motor.

An integrated motor unit cooling system uses dual refrigerant loops to remove inverter heat, reducing overall system size.