Contact Surface Shape/Structure TRIZ Cases

Integral spacer dots merge with the flexible cover sheet to eliminate adhesive materials, resolving manufacturing complexity and display clarity issues.

Multiple separated lands on the contact pattern ensure reliable conduction for diagonal inputs under weak pressing forces.

A multifunction switch uses a swingable control pin to press movable contacts and actuate mechanical elements through a single integrated mechanism.

Permanent magnet extends electrical arcs away from contact surfaces, preventing burn damage and maintaining low electric resistance.

Segmented touch electrodes with soluble insulators prevent polishing belt scratches and disconnection.

A segmented second electrode configuration reduces stress-induced bending in MEMS devices.

Crossing elongate conductors create a reliable conductive path, reducing device complexity and manufacturing costs in steering wheel assemblies.

Protruding arc discharge devices on reed switch contacts divert electric arcs away from contact surfaces, preventing erosion and enabling higher current loads.

A resilient tongue on the circuit unit pushes a support rod upward to abut against a positioning seat edge.

Sacrificial conductive members act as anodes to prevent galvanic corrosion of touch sensor components during manufacturing.

Inclined band contacts with corrosion-resistant plating prevent arc damage and contact failure across high and low current applications.

ADC circuit delivers supplemental wetting current to break through film resistance on aircraft valve switch contacts, ensuring reliable electrical conduction.

Segmented serrated surfaces create localized pressure points that penetrate ice layers, ensuring reliable solenoid switch operation in cold climates.

An inverted dome switch assembly integrates conductive contacts into the button member to minimize spatial footprint within portable electronic devices.

Planar electrical contacts align pressure and current distributions to reduce resistance and thermal stress.

Guard traces absorb moisture to protect metal traces from corrosion during touch sensor manufacturing.

Spherical contact geometry compensates assembly tolerances to eliminate intermodulation without increasing pressing force.

Alternating contact widths compensate for asymmetrical geometry to prevent overheating in parallel conductor arrangements.

An elastic sheet positions the pushbutton horizontally to reduce vertical bulk in electronic switches.

A keyboard dome stiffener assembly uses air cavities to control pneumatic pressure changes during key actuation.

Spherical contact geometry compensates for angular errors and radial offsets, reducing contact resistance and enhancing service life.

Increasing opposing distance at contact ends shortens arc stagnation time and suppresses insulation degradation.

Groove portion with enlarged interior increases creepage distance to prevent insulation failure from contact powder waste.

Two groups of coaxial Belleville springs increase contact surface area and pressure distribution to extend service life in high voltage earthing switches.

Hydrophobic potting gel protects electronic components from moisture corrosion while accommodating thermal expansion.

Segmenting contact interfaces into parallel paths lowers current loss and temperature rise while maintaining structural simplicity.

Bonding a light guide film between concentric circles on a metal dome enhances light emission while reducing thickness and manufacturing costs.

Extending traces beyond the border region serves as test points, removing visual inspection needs and reducing FPC board size.

A conductive dome sheet extends longitudinally across alternating contact portions to enable electrical signaling from any press location.

Segmented elastic actuating body optimizes pre-load force control while maintaining efficient touch action transmission for reliable electrical switching.

Bonding durable contact stocks to thin metal sheets prevents plating peeling and wear at curved diaphragm peaks, ensuring stable electrical continuity.

Segmenting the structure into two substrates protects the fragile moveable plate while increasing contact area to reduce resistance and arcing.

Overlapping contact modules with rail fasteners prevent ionized gas short circuits while ensuring simultaneous operation.

Parallel single moving contacts with a leaf spring component maintain low resistance under high current loads in transformer tap switches.

Step difference portions position contacts to generate arcs in safe zones, reducing extension time and improving cutoff reliability.

Arc-shaped conductors align with static contacts to simplify tap selector connections, reducing transformer oil consumption.

An insulating tubular body houses a conductive biasing element that closes the circuit upon piston contact, reducing crust damage and air pressure needs.

Separated contact points shield the zone from arc damage, maintaining reliability during commutation.

A graded silver-copper contact tip eliminates brazing voids through powder metallurgy, maintaining high conductivity while resisting mechanical wear.

A single clamping screw fixture with an adjustable holder prevents switch damage from excessive force while improving mounting efficiency.

A plunger switch design featuring a cushioned housing and ridged contact surfaces for reliable electrical connection.

Inclined contact surfaces reduce electromagnetic repulsion moments to maintain stable connection during fault currents.

A PCB-based contact structure enables low insertion loss and high isolation for DC to microwave signals.

A PCB-based moving contact structure enables stable switching across DC to microwave frequencies using layered planar geometry.

Multiple contacting points on spring contact side edges increase current passing capacity while reducing space occupation compared to single-point designs.

Unitary metal frames stamped into plastic housings enable fully automated assembly of electrosurgical pencil switches without manual intervention.

An aspherical neutral face design enables a dome-shaped spring to buckle at reduced heights.

An eighth-order even function defines the neutral plane of a dome-shaped spring to reduce wear on stationary contacts during repeated buckling movements.

A stacked metal and elastomeric dome structure provides crisp tactile feedback in low-travel keyboard designs.

Fluid-filled cushions preserve switch cavity volume during over-molding, preventing flattening that disrupts key function and ensuring a hermetic seal.