Contacts TRIZ Cases

A modular breakpoint layout separates housing, breaking, mechanism, and transmission units to simplify installation and speed maintenance.

A wettable liquid-metal interface cuts contact force, wear, and intermetallic reactions while keeping switching resistance below 100 microOhms.

A separable mechanical breakpoint layout lets solid-state circuit breakers switch AC/DC configurations and simplify maintenance.

Periodic microcontroller-driven current pulses clean oxidized circuit breaker contacts without position changes, helping keep resistance low.

Pulsed coil current moves the armature in overtravel so contacts rub without separating, limiting sticking, oxide buildup, and welding.

A metal-GRM multilayer coating replaces grease on moving contact surfaces, cutting maintenance while keeping low friction and corrosion resistance.

Elastic linkage and holding assemblies keep multi-side isolation switch operation synchronized while preventing transmission separation, jamming, and arc damage.

Coil current pulses move the armature in overtravel so contacts rub without separating, clearing oxide or sticking faults while maintaining conduction.

Voltage-based impedance adjustment stabilizes coil inrush and latching current across wide input ranges without current sensors.

Benzimidazole-controlled silver electroplating refines crystallites to increase hardness and reduce adhesive abrasion in contacts and terminals.

Internal oxidation forms MeO-SnO2 clusters in Ag contact material to improve Ag-SnO2 adhesion, toughness, conductivity, and arc life.

HfC and ZrC replace tungsten carbide in silver switchgear contacts to limit oxide evaporation, reduce contact resistance, and resist arc erosion.

HfC/ZrC-reinforced silver contact composites resist arc erosion, limit material loss, and keep switchgear contact resistance stable.

Benzimidazole-based silver electroplating raises surface hardness and wear resistance in contacts while reducing adhesive abrasion and insertion force.

A gasifying plate mounted on the conductive expansion plate quenches the arc at its root, cutting arching time and temperature rise.

Elastic push-in clamps and lock pins speed fuse holder cable termination while maintaining secure retention in power distribution panels.

Off-center pivots, asymmetric cushions, and damping layers improve headphone fit, sealing, and control noise reduction.

A voltage-driven liquid metal droplet bridges MEMS conductors inside a capped cavity to reduce wear, stiction, and contact failure.

A conductive liquid contact and electromagnetic drive cut relay transfer time while avoiding the waste heat of solid-state switching.

Carbon nanofillers and metal powders cut silver use in electrical contacts while preserving conductivity, heat transfer, and strength.

A piezoelectric disk moves conductive liquid to bridge relay contacts, enabling half-cycle switching with low heat loss and high durability.

External magnetic attraction moves the tap changer contact without pressure-dependent actuation, cutting cost and assembly complexity.

An Au-Ag alloy thin film with controlled Cr, Mn, Fe, Co, Ni, Cu, or Zn balances hardness, wear life, low contact resistance, and sulfidation resistance.

In-situ internal oxidation forms a MeO-SnO2 cluster interface in Ag contacts, improving adhesion, toughness, homogeneity, and conductivity.

A serpentine fusible element folded across multiple planes increases fuse length, heat transfer, and surge I2t without enlarging the housing.

Ordered ceramic microparticles in a copper-alloy breaker contact improve wear resistance and conductivity while cutting silver contact cost.

Input-voltage-based PWM and impedance adjustment keeps coil inrush and latching current stable without current sensors, cutting heat and power use.

A bridging unit maintains control power during switching, reducing startup delays and enhancing reliability.

A rolling ball switch uses pin terminals with smooth burr-free surfaces to bridge electrical contacts efficiently.

A relay contact spring forms a return loop to generate electrodynamic closing forces.

Segmented labyrinthine gaps in the protective cap equalize internal pressure from rapid heating while blocking water and dirt ingress into the relay.

Rotating the movable contact element converts electromagnetic force into pressing force, maintaining insulation capacity while preventing contact welding.

A relay current control circuit slows contact movement to reduce acoustic noise during switching operations.

A dual-layer silver composite contact tip uses powder metallurgy to create distinct hardness and conductivity profiles across its layers.

A fuse switch module uses a rotatable cartridge to connect fixed contacts and lock the cover during operation.

A hybrid relay uses a piezoelectric disk to rapidly move mercury between contacts for fast electrical switching.

Magnet arrangement pushes arcs into quenching chambers via Lorentz force, preventing thermal destruction in high-power DC switching.

Oxidizing tin and zinc oxide particles in liquid metal before embedding them in silver improves burn-off resistance while maintaining plastic deformability.

This design merges the swing member and contact member into one component to resolve the contradiction between operation direction versatility and device complexity.

Fixed contact legs extend through the casing to solder onto a circuit board, eliminating cumbersome screw fixation and cable connections.

A wiring device incorporates a bumper cap or pad to absorb vibration energy, reducing noise amplification while maintaining structural support.

A two-wire tilt switch merges power supply and output stages into one integrated circuit.

A switching device uses a rubber seal member to fill gaps between the driver and recess, accommodating pivotal movement while maintaining enclosure integrity.

A switch case uses partition walls and blocking terminal portions to minimize dust entry routes through the terminal holes.

Constraint elements near shunt bends translate magnetic repulsion force into contact arm torque, resolving inefficient force transmission during fault currents.

Direct cold sintering joins precompressed contact pads to copper supports, eliminating costly silver solder layers that cause decohesion.

A switch uses a variable resistance polymer layer to detect force without moving parts.

A fuse block uses double studs to conduct current through a bus bar for dual-sided mounting.

Merges common and auto fixed contacts to reduce wiring pattern complexity, enhancing circuit design freedom and lowering manufacturing costs.

Direct sintering replaces decarburization to form uniform pure silver layers on continuous strips, improving interface bonding and production yield.

An encoder integrates a tri-color LED assembly directly into its injection molded substrate to enable independent color mixing via voltage variation.