Incorrect Coupling Prevention TRIZ Cases

See how integrated upper and lower couplings with pins, jacks, and limiting structures eliminat

See how a fool-proof bulge structure in the mounting groove prevents reverse coupler installati

A keyed annular connector speeds decorative tree setup while maintaining safe, reliable power transfer between hollow tube sections.

Asymmetrical spring legs and channels create a secure, orientation-safe LED power connection without wire bundles, simplifying display reconfiguration.

A spaced-bottom connector mount fixes securely to the battery housing while leaving clearance for automated inspection jigs and lower assembly cost.

Spring-biased sliding latch handles enable blind one-handed coupling while reducing accidental disconnection and dirt buildup.

A serial LED sensor with adapter cable options lets one pulse oximetry sensor work across different monitors, cutting setup complexity and cost.

An integrated short-circuiting and engaging member detects half-fitted connectors only in full engagement, preventing false connection signals.

A blocking part limits elastic buckle overtravel, preserving pre-lock engagement and preventing accidental high-voltage mating.

An extended cover wall limits lever leg deflection in a lever connector, preventing unintended detachment while supporting smooth assembly.

Expanding the neutral plug pin area redirects leakage current through the neutral line, reducing electric shock risk even in wet conditions.

Insulating ribs in a high-voltage connector increase creepage distance, support CPA sliding, and reduce cable bending stress.

A rotating abutting arm in the upper port presses the HDMI plug to raise pull-out force, prevent detachment, and protect connector pins.

Balanced inner and outer contact zones let a front retainer detect half-inserted terminals while reducing movement resistance and shape distortion.

A hooded CPA connector with an exposed inclined finger rest prevents accidental return to temporary latch and unintended disconnection.

Asymmetrical fastening walls and terminal layout prevent reverse mating and power-terminal short circuits in compact connectors.

A spring-driven platter hides the code until full connector mating, reducing alignment issues and mechanism complexity.

T-shaped mating features and shielded cable-to-terminal links cut PCB signal loss, crosstalk, and connector space in high-speed assemblies.

Staggered side-wall through-holes guide and lock the CPA smoothly, reducing connector housing height even when a sealing element is used.

A folded-back CPA arm layout shortens connector sliding length while preserving elastic flex for secure complete mating.