Electromagnetic Relay Details TRIZ Cases

A relay uses a base block wall to separate coil and contact areas while affixing the pressing member to an extended armature portion.

Optical detection system tests latching magnet windings for wire breakages while preventing unintended contact element separation.

A solenoid device uses one electromagnetic coil to sequentially attract multiple plungers via distinct magnetic circuits.

An electromagnetic relay drive shaft incorporates an insulating portion to electrically isolate the movable contact piece from the movable iron core.

Directly securing the shaft to the plunger eliminates loose retaining rings that uncouple under vibration, ensuring reliable operation.

Merging the base and spool eliminates assembly errors while an L-shaped yoke forms a rectangular magnetic loop.

Yieldable support transitions between rigid and flexible states to enable rapid contact closure in latch-free actuators.

Snap-fit retention hook on resistance wire eliminates housing assembly, improving heat dissipation and mechanical connection strength.

A calibration bracket adjusts the armature position relative to a magnetic member, enabling precise magnetic trip calibration without damaging components.

A relay seals the working contact gap with a sliding displacement element, preventing particle ingress that degrades spring restoring properties.

Parallel contact pairs enable automated self-testing of forcibly guided relays, eliminating downtime from periodic safety verifications.

A segmented electromagnetic switch design enables reversible coupling of the shaft and coil assemblies.

A monolithic relay carrier body integrates a coil mount and contact element mount with an insulation wall to minimize part count.

Asymmetric yoke links magnetic flux with mover to generate electromagnetic force countering contact repulsive forces across varying current ranges.

A relay apparatus uses a shared yoke to reinforce magnetic flux between coils, reducing power consumption during activation.

Segmenting the air gap with nested armatures accelerates reaction time without increasing coil turns or power loss.

Vertical stacking of contacts reduces Joule heat deformation while maintaining current capacity.

Variable thickness contactors resist electromagnetic repulsion to prevent contact welding under high short circuit currents.

A hermetically sealed contactor uses a hollow plunger shaft to equalize internal pressure during movement.

C-shaped spring assembly dampens armature bridge rotation to reduce contact bounce and arcing during high current switching.

A permanent magnet retains the armature in an open position using magnetic force combined with a hinge spring restoring force.

Magnetic repulsion between the contact spring and a parallel continuous line increases contact force without adding mechanical complexity.

Flanged elongate link member engages keyed slots to eliminate adjustment fasteners, simplifying circuit breaker assembly while maintaining tripping accuracy.

A movable core step creates a two-stage magnetic field air gap to adjust trip thresholds in electromagnetic trip units.

Vertical conductive member orientation redirects magnetic fields generated by large currents, preventing interference with relay operation stability.

A contact device uses a heat transmission structure to move thermal energy from movable contacts to fixed terminals.

A segmented electromagnet device combines a main coil circuit with an auxiliary permanent magnet circuit to generate strong retention force.

Step-configured pressing members sequence blade spring engagement to minimize contact welding from arc discharge under large energizing currents.

Replacing bulky coil springs with a single blade spring reduces device volume and mechanical energy consumption while maintaining precise contact pressure.

Radial actuators on a pivotable armature actuate contact springs transversely, resolving the conflict between high stroke and compact height.

A seal structure uses specific sealing material viscosity to control flow into clearances between the base and case.

A relay moving core with a cylindrical protrusion concentrates magnetic flux to strengthen initial attraction, reducing spring interference during assembly.

An integrated rotation restriction portion merges nut and stopper functions into the terminal, eliminating bolts and simplifying attachment.

Magnetic coupling member reduces holding force, enabling wide voltage range operation with lower power consumption.

Integrated heat dissipation space with conductive member and vent removes heat from fixed terminal without adding device complexity.

Offset coil core planes minimize switching device width while maintaining magnetic flux distribution.

Chamfered armature engagement parts guide connecting cards into position, preventing material scraping and deformation during assembly.

Elastic snap-fit coupling compensates for wear progression in electromagnetic contactor frames, preventing looseness and vibration without adding components.

A processing unit generates periodic voltage waves to drive an electromagnetic actuator with optimized pulse timing.

Shaped contacts generate Lorentz forces opposing electromagnetic repulsion, eliminating the need for increased spring pressure and reducing device size.

Internal conductive paths enable direct protective status evaluation, eliminating auxiliary switches and reducing wiring complexity.

A switching device uses an instantaneous release mechanism to separate contacts rapidly during fault conditions.

A rocker switch integrates a drivable actuator to move the contact system between on and off positions via an electromagnet.

Pretensioned bent cord maintains position without retention, enabling automated assembly of high-load relays.

Segmented gaps and a magnetic return spring increase initial attractive force while simplifying the relay structure.

A contact spring uses an elastically deformable hook to secure a cradle relay without pivoting.

A bipolar relay uses a shared magnetic drive to synchronously deflect contact springs between two single-pole relays.

Folding the coil terminal toward the spool guard reduces dead space and eases wire tying in compact electromagnets.

A rotary contact assembly with a roller enables uni-directional solenoid operation in electrical switching apparatuses.

A magnetic yoke balances repulsive forces during short circuits to maintain contact pressure and prevent welding.