Electric Switches TRIZ Cases

A multiposition switch uses a rotatable routing subassembly to connect electrical paths between contact members for precise signal switching.

A permanent magnet positioned adjacent to the air gap aligns its magnetic flux with the coil field to enhance attractive force on the movable iron core.

A pressure switch uses a dedicated positioning means to hold the transmission element at an intermediate position between switching states.

A passive wireless switch uses a UWB transponder to transmit pulses via generated power, avoiding multipath interference and sensor collisions.

Optical coupling replaces mechanical links in a switch assembly, preventing dust accumulation that increases triggering force and degrades reliability.

A miniature circuit breaker uses a button-driven indicating apparatus to visually display the switching-on state through an observation window.

Electronic sensing of bypass switch opening prevents arc re-ignition and reduces IGBT load during short-circuit interruption.

A processor detects contactor type via current flow to configure drive ends for bistable or normally closed units.

Segmented terminal blocks utilize lateral and front faces to expand connection versatility without increasing device complexity or size.

Permanent magnets generate radial fields that displace arcs toward electrodes, ensuring reliable breaking across all current levels.

A rotatable knob interface detects shift via capacitive coupling between a conductive region and sensor electrodes.

An electromagnetic relay uses a metal plate cooling member to extinguish flames in a flat passage, preventing combustible gas ignition.

A frame assembly uses posts interferentially engaged in fixing holes to secure push buttons via elastic connectors.

A unitary cut-off block channels arcs via a metal deflector, preventing contact erosion and enhancing dielectric withstand.

An insulated lockout device uses a telescopic arm to access elevated switches without ladders, preventing unauthorized lever movement via spring-biased locking.

Lateral projections absorb stress on the plate spring, preventing cracks and extending service life.

Integrating contacts and triggers on one arm eliminates separate circuit boards, resolving space constraints while minimizing rattling noise.

A U-shaped fixing cover prevents rubber seals from sagging into housing openings, resolving durability issues in electric power tool switches.

A switch spacer with a pre-formed raised portion offsets adhesive sag, preventing contact point recess and unintended activation.

Two-part key switch housing integrates a rear wall locking projection for snap-in assembly.

A linear actuator uses a permanent magnet to lock the moving body in its first position without continuous power.

Overmolding distinct plastic materials manages temperature variations across switch regions, reducing costs while maintaining reliability.

Nested tamper detection switches surround resilient key members to detect physical penetration, preventing PIN recording bugs from accessing payment terminals.

Controller halts current flow through switched-mode power supply circuit before actuating relays, reducing sparking and prolonging relay life.

Nested bushings seal the operating element within the contact space, preventing air pressure changes that draw dust into the switch housing.

Radiused surfaces and segmented gaskets eliminate crevices that trap food particles, preventing bacterial growth in washdown environments.

Segmentation and periodic action enable an autonomous signal producing unit to harvest energy and generate complex control signals without external power.

Segmented metal plates with gas emitting layers exhaust heat through targeted zones, reducing space requirements while preventing localized melting.

Mechanical linkages prevent simultaneous utility and generator connections, eliminating backfeeding risks without certified electrician installation.

Adjustable cleat blocks actuation to prevent unauthorized switching, resolving reliability versus ease of operation trade-offs.

A junction field effect transistor limits voltage across electromechanical switchgear contacts to reduce arcing.

A control module maintains system voltage while isolating the circuit breaker.

A bellows-shaped covering member seals the shaft while enabling visual verification of external packing engagement.

A magnetically latching solenoid determines plunger position by measuring magnetic field variations across the frame using Hall Effect sensors.

A centrifugal force switch activates electrochromic paint on an alloy wheel to change color at high speeds, addressing static appearance limitations.

Link members coordinate drive members to retract keytops, preventing chassis damage while maintaining operability.

A light guide routes LED illumination to the actuating head, resolving mechanical locking conflicts that obstruct signal visibility.

Ferromagnetic plates confine magnetic flux lines between parallel elements, directing electric arcs toward the deionizing cell to increase breaking capacity.

A floatable optical switch transmits light beams through fiber cables to control devices remotely.

A vehicle seat switch uses a guide groove and lever arm to direct multi-directional actuation.

Staggered deion plates in an arc chute housing quench electrical arcs through progressive ionization, mitigating contact damage during high fault levels.

A flexible waterproof pad couples to a vehicle circuit board, featuring protrusions and through-holes for knob access.

Bottom-mounted auxiliary switch tray resolves limited access and installation errors by relocating mounts to the housing base.

Protrusions fit support grooves to constrain positional deviation caused by external forces on exposed terminals.

A stored energy interlock assembly uses a paddle mechanism to disengage the latch shaft.

Mitered surfaces join plastic housing parts to eliminate gaps and burrs while integrated venting points discharge trapped air during injection molding.

Movable seat ribs reduce friction against flat base and housing surfaces while T-shaped fixing portions prevent lateral displacement during long-term use.

Direct mechanism integration eliminates lever complexity, reducing manufacturing costs and extending working life.

Spring biasing breaks electrical contact above a threshold, differentiating breach attempts from normal variations.