Association With Grounding Devices TRIZ Cases

Woven metallic yarns built into the oil seal route induced shaft current to the motor housing, preventing bearing corrosion without a separate ground ring.

A sliding contact and annular carrier create a continuous grounding path for the rotor carrier, preventing bearing currents and oil-fouled contact.

A bracket-supported terminal creates a direct frame-ground path while resisting external terminal force that would otherwise deform the connection terminal.

An elastic support body creates a permanent shaft-to-housing discharge path that prevents rolling bearing damage from rotor charge buildup.

A grounded motor frame linked by a flexible wiring board and spring suppresses electromagnetic noise and protects nearby electronics.

A conductive sleeve gives the grounding brush a durable sliding surface that resists oxidation, keeps contact resistance low, and protects bearings.

Retention hooks on the brush support lock into a simple mounting plate bore to cut vibration, discharge risk, and attachment cost.

An anti-rotation lug keeps the grounding brush in contact with its mounting plate, reducing wear, heating, and electro-erosion.

A seal placed between the bearing and shaft neutralizing device blocks oil and refrigerant contamination, preserving grounding conductivity.

Conductive plastic in the fuel pump housing bleeds static charges to ground, reducing spark and combustion risk during fuel delivery.

Limiting bond magnet axial length cuts bearing voltage in motors, suppressing electrolytic corrosion, vibration, and noise.

Power MOSFETs create a bypass path between separated grounds during disconnection events, shielding motor control circuitry from destructive current.

A woven metallic yarn ring grounds induced shaft current to the motor housing, preventing bearing corrosion and improving durability.

Adjustable conductive fibers mounted on a motor ventilation hood ground leakage currents while reducing bearing noise, friction, heating, and wear.

Separated conductive filament bundles create a low-impedance ground path that dissipates rotating plate charge while reducing brush wear and vibration.

A conductive bearing and grounded conductive link drain rotor charge from the output shaft to prevent common-mode bearing corrosion.

A recessed grounding hub adds a parallel lubricant and coolant path, maintaining shaft grounding while improving bearing life and EMI control.

Conductive grease in a motor shaft labyrinth seal routes induced currents to the housing, reducing bearing damage, interference, and drag.

A low-impedance shunt between the rotor shaft and stator diverts high-frequency PWM currents to reduce EDM bearing wear and extend machine life.

A PCB ground pattern shields Hall and encoder magnetic elements from EMI and static discharge, improving motor rotor position detection reliability.

Centrifugal and underpressure collection captures fluid leaking past a rotor shaft seal, cutting wear, friction losses, and motor contamination.

A conductive shield terminator routes common-mode currents from a VSD cable shield to the motor housing while preserving watertight, high-IP connections.

A conductive grounding hub and guide element ground the motor shaft through the housing to limit EMI, potential differences, and bearing wear.

A spring-preloaded grounding hub runs inside a hollow shaft to maintain electrical contact while saving axial space and reducing interference.

Rounded or chamfered support flanks protect conductive fibers from cutting, reducing motor contamination and bearing discharges.

Convex flank surfaces in a grounding brush support prevent conductive fiber cutting, reducing motor contamination while maintaining grounding.

A flexible grounding lip and discharge component equalize shaft-to-housing potential, preventing spark damage to bearings and lubrication media.

Insulated rotor joints, shaft grounding, and EMI filtering cut common-mode bearing currents in hybrid-electric gas turbine propulsion.

A lockplate-mounted shaft ground stabilizes vertically mounted motor bearings and diverts current to prevent arcing, noise, and early failure.

Conductive ring shields overlap the stator winding to curb parasitic capacitance and protect bearings from converter-driven common mode voltage.

A PCB that conductively contacts the stator housing forms a Faraday cage, suppressing brush and electronics EMI without extra shielding parts.

A conductive insert uses a molding hole to ground the circuit board to the valve body, cutting EMI without welding or swaging.

An integrated retaining ring and end shield simplify rotary encoder mounting while adding alignment, EMI shielding, and dust protection.

A shaft-mounted cover shields the grounding contact from dust and spray water while reducing wear, friction, and EMI in electric axle drives.

A noble-metal conductive layer on the bearing inner ring keeps brush contact resistance low and prevents discharge damage over motor life.

Sized conductive particles in a nonwoven grounding ring cut resistance to 10 Ω or less while preserving flexibility, air permeability, and wear durability.

A waveguide between rotor and stator shields the airgap from lightning-induced magnetic flux, cutting induced voltage and magnet damage.

A flanged tubular housing with circumferential recesses preserves roundness, lowering stator surface pressure, iron loss, and weld-related damage.

A polygon shaft and common resolver let multiple dual radial gap motors run in sync with one controller, cutting cost and complexity.

A brush-and-spring ground structure inside the motor shaft diverts shaft voltage to the rear cover, preventing bearing erosion and ATF-related wear.

A vented cover around the motor shaft discharge contact relieves pressure changes while keeping wear debris out of the housing.

Clip units and a seating groove hold the capacitor wire on the motor ground terminal, improving assembly automation and resisting pullout.

Insulated joints, shaft grounding, and EMI filtering block common-mode current paths that would otherwise damage gas turbine engine bearings.

Conductive filaments in a brush seal ground shaft voltage-induced current while retaining lubricant, reducing arcing and bearing wear.

A contact-avoiding flexible grounding part maintains motor ground continuity through thermal expansion and contraction without screw loosening.

A single contact spring with multiple fingers grounds SMD motor components to the housing, simplifying assembly while improving connection reliability.

Impedance matching equalizes inner and outer bearing ring potentials in converter-fed motors, reducing bearing currents and stress.

Conductive rubber and grease maintain shaft-to-casing continuity while the sealing lip limits friction and suppresses electromagnetic noise.

Alternating polarity rotor windings cancel parasitic currents via opposing flow, reducing energy losses and bearing damage from capacitive coupling.

A rotary machine houses a shaft grounding device in an end plate recess to eliminate shaft voltage without increasing machine size.