Protective Switch Operating/Release Mechanisms TRIZ Cases

A reconfigured breaker housing creates a fourth receiving space for added functions without increasing standardized compact dimensions.

A pivoting stopper raises manual trip force to prevent accidental switching while staying clear during fault tripping in motor breakers.

An electrical delay element slows trip-coil current rise to align breaker pole switching times without raising power consumption.

Electromagnetic opening and closing coils integrate leakage protection and remote operation into a compact breaker with simpler assembly.

An impacting member actively positions a blocking portion to stop main shaft rebound and reduce arc re-ignition in circuit breakers.

Insulated transmission rods and bimetal links separate the tripping linkage from live poles to prevent interphase breakdown in molded case breakers.

Elastic support adjustment and a locking member enable precise, reversible thermal trip calibration while preventing drift in operation.

A lever-driven reversed handle keeps flipped stacked circuit breakers intuitive to operate, enabling EV charging expansion without added load management.

An interlock blocks ON switching and fuse removal in unsafe states, enabling safer fuse replacement and protecting contacts during fault current.

A slide-rail and slider linkage lets the circuit breaker operating mechanism be tested independently, cutting detection cost and assembly effort.

A four-bar linkage lets one mechanism trip all poles with lower actuation force and faster contact separation in a multi-pole circuit breaker.

A magnetic sensing part near the stationary contact detects overload current without carrying it, improving tripping performance and lowering insulation cost.

A fixed leading rod and spring-guided armature cut friction and strain, improving high-speed breaker opening and low-current tripping.

Collinear leading and tripping rod alignment cuts armature friction and strain, improving breaker opening speed and low-current tripping.

A long-arm handheld actuator moves molded case circuit breaker handles from a safer distance to reduce arc-blast exposure.

A reset lever with unequal force arms cuts actuator release force, enabling reliable circuit breaker contact disconnection during faults.

A directional stopper raises manual tripping force to prevent accidental switching while leaving fault tripping rotation unobstructed.

A latch-released elastic lever stores spring energy so a weak coil can deliver fast, high-force tripping with strong impact resistance.

Two short-circuit magnetic loops shunt permanent-magnet flux, boosting trip sensitivity while lowering coil power in a latching actuator.

A trapezoidal air-gap core with permanent magnets creates directional magnetic flux, lowering activation current for unidirectional circuit breaking.

A hook interlock blocks rotary disk movement when contacts weld, stopping the breaker at trip position and preventing unsafe off switching.

A torsion-spring and four-bar operating mechanism keeps SPD disconnectors ultra-thin while preserving contact strength, positioning, and arc-resistant motion.

A shared rotation shaft lets the crossbar and instant bar rotate in less space while reducing phase interference in circuit breaker trip assemblies.

A shared pivot shaft for the reset plate and latch keeps the pushing point fixed, stabilizing tripping force and breaker release reliability.

A nonmagnetic deflector confines the blown arc in narrow gaps, boosting cooling and extinction while reducing arc reformation risk.

A handle torsion spring replaces the re-buckling spring in a four-linkage breaker mechanism, cutting parts and easing automated assembly.

A non-magnetic insulating deflector confines the blown arc, raising arc voltage, reducing magnet demand, and improving interruption safety.

A thermo-magnetic material shifts with Joule heating to trip a bistable conductive module, cutting overcurrent in a compact spring-free structure.

A latched trigger blocks manual contact re-closing after overload or short circuit until an electrical reset confirms safe circuit conditions.

A contact spring mechanically transfers short-circuit repulsion to the operating mechanism, simplifying quick tripping and preventing secondary closing.

A coil-shorting inhibition circuit blocks magnetic interference in electronic trip breakers, preventing untimely tripping and preserving selectivity.

A micro switch shuts down breaker electronics before main contacts separate, reducing arcing and contact erosion during current interruption.

A secondary switch cuts power to breaker electronics before main contacts open, reducing arcing and contact erosion.

A solenoid-driven lockout keeps the breaker open during ground faults, blocking reset until the fault is cleared.

A curved contact-pressure lever and guide groove reduce crossbar friction, improving current interruption in compact circuit breakers.

A separate kicker lever and trip lever enable remote opening and closing in a miniature circuit breaker without added jamming or space penalties.

A latching mechanism pre-charges and abruptly releases spring energy so low-voltage switch contacts close reliably even with slow handle actuation.

A permanent magnet drives the arc into a vertical arc splitter, enabling slim circuit breaker height without sacrificing voltage handling.

A sliding-block compression spring boosts circuit breaker opening force, simplifies installation, and helps prevent moving-contact sticking.

A single reset torsion spring drives bracket reset and contact pressure together, cutting circuit breaker mechanism complexity and assembly time.

A slider-crank output lets the circuit breaker mechanism be tested without the contact system, cutting detection cost and assembly effort.