Electromagnetic Relay Details TRIZ Cases

A movable magnetizer shifts with contact current to balance short-circuit holding force, breaking ability, and compact relay size.

Magnetic shielding redirects relay contact flux to resist short-circuit repulsion, suppress arcing, and maintain stable contact in compact DC relays.

Snap-fit base modules replace tool-based panel wiring, cutting assembly time and wiring errors in low-voltage power distribution.

A laminated fixed terminal splits current between main and layer members to improve relay heat dissipation without increasing size.

Closed magnetic-loop guide sheets and staged elastic members raise relay contact pressure to resist electric repulsion at low coil power.

Magnetic shielding blocks permanent-magnet interference while boosting relay contact holding force to limit bounce, arcing, and short-circuit failure.

Magnetically guiding sheets form a magnetic loop that boosts contact pressure, helping a compact relay resist short-circuit repulsion.

Parallel current paths and thermal coupling cut terminal heat rise and arcing in meter relays for safer micro-grid disconnection.

Balanced magnetic flux and timed contact motion cut vacuum interrupter arcing, wear, and fatigue while preserving compact high-voltage actuation.

Electrically isolated dual contacts let a non-welded path still open, preventing unintended permanent connection in high-power relay switching.

Separated fixed contact pieces and an integrated plug-in interface improve relay heat dissipation, sealing, and assembly reliability.

A fragile pipe lead section localizes thermal expansion deformation, preserving airtight sealing and protecting the insulating material.

Upper and lower yokes counter electromagnetic repulsion while a pin-supported contact structure prevents arbitrary separation in DC relays.

An integrated housing flange and screw-terminal base simplify relay mounting and wiring while reducing parts, cost, and dust-water exposure.

A resettable PTC between the power source and relay socket limits short-circuit current from incorrect relay insertion and protects coils and PCB traces.

A pulse-converted turn-on signal and backup hardware controller cut excitation-coil current when software-based contactor stop control fails.

Bent fixed terminals extend outside the housing to add cooling surface and air convection without increasing relay size.

A magnetic conductive frame guides separation arcs to the extinguishing device while protecting the movable contact from erosion and misalignment.

Multiple contact pads and a flexible busbar maintain current paths while reducing arcing, oxidation, contact resistance, and vibration.

An elastic seal between the drive device and contact case maintains relay airtightness while cutting welding cost, assembly time, and noise leakage.

Spaced protrusions on a plastic contact insulator extend creepage distance, improving switch insulation and reducing electric shock risk.

Two push-rod-driven micro switches detect main contact state and cut the acceleration coil, simplifying DC contactor energy-saving control.

Non-crossed relay terminals on opposite base walls reduce copper use, simplify welding and assembly, and maintain safe high-voltage spacing.

A linear plunger and movable contact let one relay switch a common input between two outputs, cutting relay count, weight, and complexity.

Multiple contact pad pairs at different positions keep a switch electrically connected despite misalignment, reducing arcing and failure.