Switches With Movable Electrical Contacts TRIZ Cases

A U-shaped thermoplastic shell and conductive connector improve vacuum interrupter pole cooling, weight, and three-position switch integration.

An elastic contact inside the fuse casing grounds floating circuit sections during replacement, avoiding extra switches and electrical hazards.

A braking mass decelerates the moving electrode near contact to limit impact, reduce welding, and preserve insulation reliability.

Cooling gas outlets around the fixed arcing contact steer and cool the arc, improving interruption reliability with fewer moving parts.

A detent-backed blade lock prevents momentum or bounce from causing premature pivoting, keeping air break switch closure stable.

A sealed magnet case guides arcs toward the grid by magnetic field, enabling fast arc extinguishment in air circuit breakers without guide plates.

Pressurized dry air and a vacuum interrupter improve medium-voltage switching insulation and arc quenching without SF6.

A spring catch holds the actuating arm against the moving arc horn during switch opening, preventing bounce, arc damage, and premature wear.

A rod-and-blade sequence closes the vacuum interrupter before blade contact, preventing high-voltage switch arcing without upstream shutdown.

A two-axis blade lock prevents premature rolling until the blade seats in the jaw, improving high-voltage switch connection stability.

A de-latching puffer lets the contact lever reach earth position while preserving peak gas pressure for arc extinction during interruption.

A bistable linkage synchronizes rotary and linear contacts in a vacuum interrupter to improve arc quenching, insulation, and SF6-free switching.

A bistable transmission links gas-side contacts to a vacuum interrupter, improving medium-voltage arc quenching, insulation, and compactness.

A blade-and-rod switch uses staged disengagement with a vacuum interrupter to suppress high-voltage arcing without cutting power upstream.

A line-of-sight straight edge simplifies three-phase disconnect switch calibration by reducing trial-and-error in the fully closed position.

Intermediate wear contacts take the arc during switching, protecting the arm and terminal from material loss and extending switch life.

A bistable vacuum interrupter links rotary and linear contacts to maintain arc quenching and insulation in compact medium-voltage switching poles.

A sealed magnet case forms a compact magnetic field that drives arcs outward for faster extinction while protecting the magnet from arc damage.

Combining isolator, circuit breaker, and ground electrode functions in one interlocked module saves switchgear space and cuts support parts.

Optical sensors detect switch blade seating to prevent incomplete contact in high voltage disconnect switches.

Single-piece connector body integrates load lugs and stationary contacts to reduce component count in non-fusible switch assemblies.

Horizontal displacement disconnector with articulated half pantographs achieves 10-12 meter opening distance while preventing buckling of heavy mobile elements.

V-shaped contact recesses engage pads via elastic springs, preventing arcs and ensuring reliable high-voltage operation.

Tethered restraint sheath prevents accidental closure of disconnect switch blades caused by gravity or wind.

A spring-loaded cam assembly reduces operating force and stabilizes a high voltage electrical switch against twisting during operation.

A trigger lever-locking bar mechanism secures the folding switch blade during operation.

A three-position disconnector uses a movable contact and kinematical chain to achieve electrical isolation within a compact insulating casing.

Patsnap Eureka air break switch integrates a rotating blade indicator with an obscuring member to display distinct colors for open and closed contact states.

A flexible conductor with perpendicular bending portions maintains electrical connection between a disconnector main blade and base.

A contact assembly uses opposing U-shaped fingers to mechanically clamp mating pieces and maintain electrical conductivity.

Spring-biased toggle members inhibit premature blade pivoting about the longitudinal axis, ensuring stable engagement during closing.

Concave polygon rotary unit merges with base frame to eliminate stabilizing elements and reduce manufacturing complexity.

Corrugations increase the heat dissipation surface area of a movable contact, reducing weight and mechanical stress from ice accumulation.

Flexible braided conducting leads transfer current between rotatable terminal stems and movable arms in high voltage switching devices.

Concave arc contact tips increase surface area and reduce resistance, extending operational cycles beyond 500.

A gas-tight housing unites a resistor and bypass device to enable efficient pre-charging of energy storage in high-voltage converters.

A single-piece aluminum casting mounting member integrates mechanical support and thermal dissipation for isolation switch contacts.

Spherical hinge joint ensures proper alignment and even contact forces, preventing external arcs caused by uneven loading in high-voltage conductors.

Elastic terminal fingers in a modular caliper grip movable contacts, reducing device complexity while maintaining electrical connection reliability.