Contact Mechanisms TRIZ Cases

A solenoid assembly actuates a cam mechanism to separate electrical contacts in a ground fault circuit interrupter.

A pull chain electrical switch casing uses a tubular part with transverse recesses to maintain screw thread integrity during molding.

A safety switch uses a latch mechanism to lock the rocker in a deactivated position after thermal activation.

High speed electromechanical actuators drive mechanical switches in uninterruptible power supplies to replace semiconductor components.

Wall switch control module operates using leakage current to eliminate the need for a neutral wire, reducing installation costs while supporting CFL loads.

Nested sleeves and a locking lever enable tool-less alignment of the coupler to the circuit breaker, eliminating hazardous enclosure entry.

Angled electrical leads transfer heat from contactors to housings, reducing bus bar weight and assembly size.

Linear translation of the moving contact utilizes arcing pressure for rapid separation, reducing arc extinguishment time and contact erosion.

Dual fulcrums prevent non-actuated ends from rising during operation, maintaining a flat appearance while allowing rigid material construction.

A gas circuit breaker uses a variable link mechanism to pull the cylinder rod, increasing separation speed between arc contacts.

Geometric interlocking prevents accidental return to the inactive position, eliminating complex spring-loading and latch mechanisms.

Nesting rotating and guiding cylinders reduces total height while maintaining reliable tactile feedback.

A low voltage arc flash switch uses an electromagnetic trigger to break down gaps within a sealed housing.

A circuit breaker pairs a drive mechanism indicator with a reversing gear deflection lever to detect coupling malfunctions.

Segmented base protrusions engage card holes to prevent play during large movements, ensuring stable contact operation.

A keyboard key structure uses a segmented span to adjust assembly force requirements.

Metal dome contacts replace thin film circuit board holes, simplifying manufacturing and reducing keyboard thickness.

A cam mechanism amplifies torque to drive the main body, managing heavy loads during connection.

A relay contact piece terminal incorporates a narrow portion to boost assisting force via electromagnetic repulsion while suppressing terminal temperature rise.

A sliding component moves along a track to activate switches as the display module pivots relative to the host module.

A quick-disconnect connection port enables retrofitting of emergency safety switches into proprietary wiring circuits, reducing installation time and effort.

Snap-in pivots detach the actuator frame from the housing, resolving leakage current issues without disturbing the wall box installation.

An illumination device uses light tubes to direct LED light upward through keyboard layers for clear key visibility.

Expanded pressure tank openings eliminate internal supporting ribs, reducing device weight while maintaining insulation performance.

An actuator assembly integrates a troughed cradle with aperture support regions to secure terminals while enabling reliable paddle displacement.

Raised weld tabs direct arc energy to bond components without compromising thin wall seal integrity.

A drive device uses an electromagnetically controllable link motion to retain and lock a carrier in three distinct positions.

Arranging buttons at distinct angles around a central axis resolves the contradiction between compact size and accurate button activation accuracy.

Arc-shaped knife contacts merge overlapping functions into the main mechanism, eliminating separate linkages and reducing operation torque.

A keycap flow-guiding bevel surface retains excess adhesive during protective cover attachment.

A push-to-talk button assembly integrates a flexible polymer button co-molded to a metal ring for secure housing coupling.

An electromagnetic launcher actuates a conductive piston to open high-voltage circuits with minimal insertion loss.

Seismic vibrations dislodge a magnet-held steel ball, triggering a switch that closes the valve to stop fluid flow.

A flush-mounted outdoor electrical box uses a lid with drip edges and a gasket to shelter connection points from moisture.

Segmented control panels break form-fitting locks on sliding plates to prevent erroneous triggering while ensuring reliable emergency activation.

Curved convex knob surfaces prevent finger slippage during operation, resolving the trade-off between grip stability and compact switch mechanism size.

Elongated slots and absorbing parts on a light guide plate prevent lateral leakage, ensuring uniform key illumination in slim luminous keyboards.

A torsion spring and cam mechanism rotate to separate contacts, reducing actuation force while maintaining reliable electrical isolation.

Segmented movable cores extend contact spring compression distance, enhancing short-circuit performance and reliability in high voltage DC magnetic switches.

Bent elastic components generate interference force to secure a sliding key mechanism, eliminating seesaw movement and improving tactile feedback.

Electromagnetic forces from fault currents keep contacts closed without complex mechanical operators, ensuring reliable power transfer.

A DC voltage switch generates counter-voltage via a transformer to extinguish arcs without semiconductor switches.

A bimetallic conductor assembly combines copper and aluminum members fastened together to form a hybrid structure.

Solenoid current signature detection enables precise zero voltage closing, eliminating micro-switch calibration needs and reducing maintenance costs.

Opposing electromagnetic forces resist repulsion, reducing arcing and allowing smaller springs for compact assemblies.

Isolation links mechanically force contactor separation, aligning handle indication with actual circuit state to prevent safety hazards.

Elastic protruding portions restore keycaps via deformation, eliminating bulky scissor mechanisms to reduce keyboard module thickness.

Curved contact arm generates electromagnetic repulsive force to separate contacts during fault conditions.

Curved roller minimizes friction between pawl and stop surface, maintaining stable triggering force despite wear.

A keyswitch assembly uses a Hall sensor and magnet for signal detection without mechanical contact.