Electric Switches TRIZ Cases

Dual urging members in a trigger switch generate distinct operation loads at the inflection point, resolving poor tactile sensation for motor speed control.

A linear selector combines a fine selector and reversing switch driven by a common gear unit to actuate tap contacts.

Integrated fuse and quartz sand extinguish arcs to prevent fires and extend product lifespan.

A dual-contact relay uses a permanent magnet to deflect arc currents outward, preventing contact erosion and extending service life in high-voltage DC circuits.

A fault current limiter uses magnetic coupling to detect line current and a switching unit to redirect flow through high impedance paths.

Stacked metal contact pieces in annular zones enable independent angular width design, resolving the trade-off between switch versatility and device complexity.

Dynamic spring pressure resolves the contradiction between handle stability and operational ease by adapting elastic force to specific switching requirements.

A relay load control circuit paired with SPDT momentary switches manages remote electrical loads through simple directional inputs.

Segmented bridge members use magnetic attraction to suppress electric arcs without increasing relay size or compromising circuit accuracy.

Yoke slits convert harmful current flux into holding force, preventing contact disengagement during high-current operation.

An electrical connection module links two contactors using auxiliary contacts and terminals to establish secure interlocking.

Segmented undulations on opposed actuator surfaces optimize magnetic force distribution, reducing mass by two-thirds while maintaining rated force.

A rotary switch assembly uses cam surfaces to convert angular displacement into axial slider movement.

A sealed switch assembly uses an independent low-friction trip indicator mechanism to maintain environmental protection ratings.

An anti-rebound protrusion guides the displaceable contact portion along electrical contacts, preventing rebound and reducing device complexity.

Narrowed strip electrode widths compensate for wiring length differences, eliminating equipotential line distortion and simplifying correction processes.

A cold shrink assembly uses a securing band to hold tapered cores during installation.

A key lock device for circuit breakers uses a linearly movable hook mechanism to secure connection links.

A pressure switch assembly uses a diaphragm, pin, and dart to transition positions based on fluid pressure thresholds.

Segmented light blocking layers on wire and cover substrates hide signal wires despite joining errors, enabling narrow bezels.

A hybrid switch circuit combines a power semiconductor with an electromagnetic relay to achieve zero-voltage turn-on and bypass conduction.

A contact bearing portion supports the lower plate of a fixed contact to distribute pressure and prevent deformation.

Integrating Rogowski coils into the foot contact eliminates separate measuring devices, reducing device complexity while maintaining measurement precision.