Incorrect Coupling Prevention TRIZ Cases

A tapered CPA element tensions mated connector locks to absorb tolerance gaps, prevent wear, and maintain stable electrical connection under vibration.

A side-positioned fool-proof protrusion prevents wrong-angle insertion while protecting frame-opening accuracy and shell stability during stamping.

Flexible locking arms and staged engagement reduce backlash and terminal friction, enabling smooth final connector locking and stable continuity.

A protruding obstructing member and through hole guide correct terminal block wiring, preventing misconnection, short-circuits, and damage.

A single coupling element aligns and locks two connector elements, reducing extra parts, connection steps, and uncoupling risk.

Split QR codes on the housing and CPA member keep one identifier readable at a time, improving connector fitting confirmation and worker efficiency.

Split 2D codes on the housing and CPA member make connector fitting status easy to confirm without hiding identifier location.

Retractable pogo pins and a keyed lock prevent misattachment and accidental disconnection while preserving reliable medical sensor signals.

Recessed bead ends and a raised facing portion keep the shorting terminal in proper contact, improving conductivity and connection reliability.

A latch-integrated visual indicator makes battery terminal connections secure and easy to verify during high-volume assembly.

An integrated CPA locking arm secures cable connectors without built-in assurance, preventing disengagement and ensuring full seating.

A single collision surface between paired lock portions keeps connector insertion sound consistent even when the lock arm tilts.

Side-deflecting locking arms cut height clearance in electrical connectors while the CPA mechanism preserves secure mating and easier assembly.

A separate sense connector isolates the sense contact from the metal shell to detect mating state and prevent arcing during power connection.

A retention groove and cantilever contact secure the disposable PCB without adhesives, improving clean assembly and moisture sensing durability.

A flexible beam and rail let the CPA slide for full connector mating assurance without enlarging the waterproof housing.

A claw-and-groove locking path guides socket rotation and blocks false engagement, helping users confirm a fully locked connection.

Segmented guide grooves and a rotation-restricting claw lock the socket in the correct position to prevent false connection completion.

An indicator nested inside the operating button shows make and break contact states clearly while saving circuit breaker assembly space.

A bent shell piece forms an asymmetrical fitting port that blocks mismatched connectors while resisting shell deformation under insertion force.

A camera and locking pin block module mating until connector damage is cleared, preventing pin damage and short circuits.

Symmetric terminals on both sides of the plug head enable reverse or forward RJ45 insertion while a locking member maintains stable mating.

A spring contact circuit detects CPA closed state without RFID leakage, confirming proper connector mating and preventing accidental unmating.

A rotating lever shaft and hook retainer replace screws, enabling faster blind mating, secure locking, and vibration-resistant connector assembly.

An electric circuit with a spring contact detects CPA closure accurately, avoiding RFID signal leakage and accidental connector unmating.

Bent band-shaped shell pieces create an asymmetrical fitting port that blocks wrong connector insertion and reduces shell deformation.

A movable connector member restricts barcode quiet zone until full mating, enabling automatic scan confirmation of proper connection.

An asymmetric loop-and-protrusion connector keeps a detachable hearing aid speaker aligned, sealed, and resistant to wax and fluid exposure.

A universal frame adapts standard plug-in modules to varied housings, enabling reliable blind mating and hermetic sealing of wiring space.