Incorrect Coupling Prevention TRIZ Cases

A resilient member synchronizes spring contact arms so the circuit changes state only after full connector locking, avoiding premature mating signals.

A non-equidistant circumferential contact layout increases insulation distance, reduces creeping currents, and helps prevent incorrect mating.

Non-equidistant contact spacing improves insulation between signal groups while keeping the connector compact, sealed, and keyed against misalignment.

Asymmetric keying, detents, and staggered retractable contacts keep medical sensors correctly aligned and resist accidental disconnection.

Arc-shaped contacts and a butterfly-wing center structure distinguish DC connectors from AC plugs while lowering resistance and arc risk.

Dual guide grooves and blocks align plug and socket in tight spaces, preventing terminal damage and enabling secure blind mating.

A raised elastic arm creates low initial insertion resistance, then deforms at full mating to strengthen terminal contact and current transmission.

A ridge-and-groove detection member protects against flexing and detachment while keeping the connector compact and securely locked.

An integrated locking arm and movable securing unit simplify plug connector locking while preventing unwanted loosening and high assembly complexity.

An asymmetric stopping structure blocks partial memory insertion, making incomplete docking visible and keeping connections stable.

Folded-back elastic arms shorten CPA sliding length while preserving flexibility during housing interference and reliable connector mating.

A wear-resistant cover shields the memory socket fool-proof member, preserving module alignment and preventing poor contact or shorts.

A nested guide pin and guide boss align battery module connectors in tight spaces without extra protrusion, simplifying assembly and cutting cost.

Guide pins and tension-driven locking prevent premature closure in FFC connectors, improving coupling accuracy and connection stability.

A push-to-connect busbar links battery modules without bolts, cutting assembly time and preventing dislodged connectors in harsh vehicle use.

A movable wire dress cover blocks final locking when terminals are unseated, improving seating detection, retention, and assembly ergonomics.

Coaxial cables replace costly flexible PCBs to link spaced modules, while RF contacts and a cover shell preserve EMI shielding.

Varying terminal center distances controls characteristic impedance for high-speed transmission without added ground coupling parts.

A sliding comb lock engages terminal edges across rows to simplify assembly, improve unseat detection, and keep compact connector size.

A spring-driven lock lets slow-mating vertical connectors produce a clear click while unlocking by simple upward pull.

Interchangeable adapters and integrated latching let one multiport assembly securely handle MPO, SC, and SN connectors with clear type identification.

A thin, flat skin electrode with a reversible disposable connector improves bioimpedance signal integrity while reducing pressure sores during surgery.

A staged lever rotation and slide sequence separates main terminal and HVIL connection timing to prevent unintended high-voltage connector engagement.

A hooked exposed part improves plug removal grip, while a contact part stabilizes adjacent housings to prevent tilting during conveyance.

A tight-fitting hourglass cavity and protrusion guide 100+ pins into aligned sockets, reducing bending damage across repeated mating cycles.

Thicker ungrooved end side walls strengthen compact connector housings against mating-force deformation while notched portions aid alignment.

Asymmetric openings, foolproof key positions, and current divider pins keep high-current PCB connections aligned, secure, and short-circuit resistant.

A retention groove and compliant contactor secure the SEM PCB without adhesives or protruding lips, improving durability and flush sensing.

Asymmetric key and detent features guide sensor alignment and lock retractable contacts in place to prevent misconnection and accidental release.

A weaker replaceable holder breaks first under load, preserving the board and cable housings and cutting connector repair cost and man-hours.

Distinct fool-proof features on terminal adapter blocks and internal circuit boards prevent RJ45 misassembly across different data-speed configurations.

A two-part right-angle adapter plug connects PCBs to M16 components in non-parallel directions, easing assembly in tight spaces.

A sliding misconnection element and locking member prevent wrong plug insertion, then release only under correct alignment for secure contact.

A pluggable base, heat sink, and conductive potting let this intrinsically safe barrier replace faster, fit tighter spaces, and handle wider voltages.

A pull-ring signal interlock powers the module off before removal, preventing connector arcing and damage during hot plugging.

Rounded shroud transitions reduce warping and unwanted terminal contact, improving connector alignment and connection integrity.

A cantilevered shorting member and inspecting contact distinguish half-fitted and fully engaged connectors to avoid false detection.

An axial impedance adjustment section adds capacitance at the press-fit area to suppress impedance rise in exposed inner conductors.

Visible ground terminal joints let engineers verify connector mating while reducing radiation noise for more stable high-frequency transmission.

A protruding housing member and through hole block wrong power line insertion in coupled terminal blocks, reducing short-circuit and ignition risk.

Different-length springs and opposing slots guide 360° connector mating into the correct position, preventing rotation, skewing, and polarity reversal.

Asymmetric cam and poka-yoke features prevent wrong lever loading in a reversible-cover connector while easing socket engagement and disengagement.

A protruding actuator feature keeps the cable latched and enables optical inspection of closure and alignment in FPC connectors.

Different spring lengths and a beveled mating face guide 360° plug-in alignment, preventing reverse polarity and twisting.

Built-in error preventing features block mismatched terminals, avoiding coil and main circuit miswiring, short circuits, and extra wiring parts.

A movable retaining member and position assurance assembly block locking until full mating, preventing misassembly and unintended disconnection.

A separated key-and-groove layout preserves full shell shielding, enabling correct connector mating without slits that worsen EMI in high-speed transmission.

A segmented shell guides plug alignment and resists twisting, helping compact connectors avoid mating damage and unintended disconnection.

Arc-shaped center contacts and symmetric conductors create a DC-specific plug interface with reversible insertion, lower contact resistance, and less AC confusion.