Electromagnetic Relay Details TRIZ Cases

Asymmetric terminal regions separate command and auxiliary connections, making contactor wiring easier to identify in low light.

A permanent magnet near the contact lengthens and isolates the arc, speeding relay arc extinction while reducing complexity and size.

By moving the contact spring outside the contact case, this relay layout keeps abrasion powder off contacts and suppresses contact resistance.

A float-supported magnetic conductor increases electromagnetic attraction as current rises, helping a DC contactor withstand short-circuit surges without impairing switching.

A protruding spring portion above the armature limits impact-driven movement, reducing deformation and relay malfunction after falls.

A sloped recess and inverted hook retain the signal wire in the coil pin, improving relay wiring reliability and supporting contact-state monitoring.

By moving the solenoid outside the housing and linking it by wire, this interrupter preserves shunt-trip function while saving panel slot space.

A pluggable relay enables manual reset after fault shutdown by detecting unplug and replug actions without adding a separate reset input.

Recessed contact zones spread current and reduce oscillation, cutting switch noise and thermal buildup during fast engagement.

Oblique magnet pairs concentrate flux at switch contacts while preserving arc extinguishing space and stronger arc-driving force.

Orthogonal frame displacement releases multiple snap-fit joints at once, speeding contactor component replacement without tool damage.

An insulating body and peripheral wall extend creepage distance from the drive shaft while an integrated switch press improves contact position detection.

Directly coupling the rotatable armature to a mixed-material spring pack removes bulky couplers and guides for a smaller, reliable switch.

An isolation space between the contact plate and magnet yoke counters short-circuit repulsion, preventing arcing and contact separation.

Ceramic arc chambers and external permanent magnets extinguish DC contact arcs without sealed gas structures, cutting complexity and leakage risk.

A segmented plunger pairs carbon steel with SUS301 stainless steel to improve solenoid switch cycle life while preserving magnetic actuation.

Electromagnetic force in the contact system counters instant current repulsion, preventing contact separation and extending relay life.

An elastic static spring contact counters electrodynamic repulsion during short circuits, improving relay contact stability without extra parts.

Offset magnets in a DC relay drive arcs toward side regions instead of the center, protecting internal parts and supporting bidirectional arc extinguishing.

Independent magnetic loops through the movable spring boost contact pressure against fault-current repulsion without easy saturation.

An external coil and deformable connector cut arcing, misalignment, and hermetic seal stress in a compact contactor.

Orthogonal frame displacement releases the snap-fit without tools, speeding coil replacement while reducing plate damage and misalignment.

Partitioned insulator chambers and a bent cantilever contact improve arc isolation, cut erosion, and prevent relay contact rebound.

Recessed armature ends and controlled spring caulking improve terminal fixation, reduce relay height, and suppress performance variation.

A gas-filled chamber and magnetic contact bridge arrangement suppress arcing, prevent contact welding, and improve battery circuit isolation.

A secondary coil senses magnetic coupling to report breaker plunger position and detect faulty trip-solenoid connections.

Oblique opposing magnets create a DC relay arc path that drives discharge outward, limiting internal damage regardless of current direction.

Separate movable contact pieces create parallel current paths in a relay, cutting contact resistance and suppressing heat rise under high current loads.

A polarity-reversing single-coil circuit speeds contactor trip and reset transitions while suppressing Back-EMF damage.

Magnets extended beyond the contact housing keep flux parallel, stabilizing Lorentz force and guiding arc extinction more reliably.

A two-part magnet layout guides relay arc direction into the arc extension space, improving control when contact positions are offset.

An asymmetric magnet frame guides DC relay arcs away from center members regardless of current direction, limiting internal arc damage.

Top cover and yoke iron openings concentrate magnetic flux to raise relay retention force while simplifying assembly and improving switching reliability.

A partitioned relay layout uses a horizontal armature pivot, spring holder, and positioning pin to cut height while improving vibration stability.

Separated magnetic conduction blocks keep the air gap stable during relay over-stroke, preserving magnetic attraction and anti-short circuit function.

Magnetic forces hold relay shell components in place, removing screws or rivets to simplify bi-stable relay assembly and maintain stable switching.

A single-member movable member improves movable contact positioning, assembly stability, and wear resistance in an electromagnetic relay.

An inclined shaft or iron-core contact surface cuts axial impact at relay cutoff, improving separation reliability without added damping parts.

Magnetic flux support boosts contact pressure at low current, then saturates to ease separation and compensate wear in low-voltage switches.

A receptacle-based cradle extends creepage and air gaps in narrow relays, enabling compact isolation with standard materials.

A guided two-degree-of-freedom contact assembly keeps switch contacts aligned in any orientation, reducing arcing and extending service life.

A recessed movable-terminal support extends contact-piece deformation length without increasing relay height, preserving spring constant and contact force.

A ball-and-spring piston releases stored energy at a force threshold to cut switch contact bounce, arcing, wear, and material degradation.