Contact Engagements TRIZ Cases
- Dual-Moving Isolating Switch Contacts for Faster Arc Extinction
Two coordinated moving contacts increase separation speed, extinguish arcs faster, and reduce contact burning to extend isolating switch life.
- Multi-Finger Movable Contact Layout for Compact High-Current Breakers
A six-finger movable contact with 1.3 mm spacing boosts breaker interrupting capacity and lowers contact heating without enlarging the chamber.
- OLTC Contact System With Cam Rollers to Reduce Wear and Torque
A cam portion moving between rollers opens OLTC contact jaws with rolling friction, cutting contact wear and shaft torque during switching.
- Tap Changer Static Contact Unit With Torsion Spring Biasing
Cylindrical torsion springs bias paired contact elements to secure tap changer engagement while cutting space use and electrodynamic forces.
- Dielectric Barrier Shield for Linear Power Shut-Off Contacts
A deformable shield maintains dielectric separation between fixed contacts during linear opening, helping extinguish arcs and preserve circuit integrity.
- Flame-Retardant Rotary Switch Structure for Arc Quenching
A flame-retardant circumferential wall quenches switch-off arcs as contacts pass its surface, improving rotary switch durability.
- Multi-Step Switch Contacts for Lower Arc Energy and Erosion
A staged high- then low-resistance contact sequence cuts arc energy during load switching and reduces contact erosion and short-circuit risk.
- Welded Microswitch Housing for Sealing and Contact Capacity
Perimeter-edge welding replaces screws and gaskets to free internal space, improve sealing, and support larger microswitch contacts.
- Tulip Contact V-Slit Geometry for Stable Arc Quenching Pressure
V-shaped slits and stress relief features limit slit movement, retain gas pressure, and improve arc extinguishing stability in circuit breakers.
- Metal-Graphene Electrical Contacts for Low-Friction Switching
Graphene in a metal contact coating cuts friction and wear while preserving conductivity, heat resistance, and arc performance without grease.
- Layered Contact Bridge Structure for Faster Switch Opening
A layered contact bridge combines conductive copper or silver with stronger support materials to cut mass, speed contact opening, and reduce erosion.
- PCB Rotary Switch Rolling Contacts for High-Current Arcing
Rolling polygonal contact faces and separate arcing zones cut contact damage, heating, and drag in high-current PCB rotary switches.
- Power Shut-Off Module With Deformable Dielectric Barrier for Arc Extinction
This shut-off module uses a variable-length insulating screen to maintain contact separation during translation and speed arc extinction.
- Push Button Switch Lever Tilting Prevention
Distributed movable contact arms prevent operating member tilting during lever press, ensuring stable contact timing.