Electromagnets With Armatures TRIZ Cases

Pulsed coil energizing finds the minimum hold-open current for solenoid valves, cutting energy use while adapting to valve tolerances.

A monolithic core tube eliminates sealing points and uses local magnetic separation to prevent hydrogen leakage in fuel cell and electrolyzer actuators.

A toroidal-conical groove and spring-loaded detent hold the armature at rest while improving magnetic-force-assisted solenoid travel.

An annular groove in the magnet armature flattens the force-displacement curve, cutting end-stroke force for faster switching and smaller valves.

AC excitation and current-voltage phase shift reveal solenoid inductance, enabling position sensing without a separate sensor.

A through-hole weight adjustment section trims movable-body mass while preserving the magnetic path and vibration output.

By removing the elastic-member gap and welding the flange to the container bottom, this solenoid improves magnetic flux flow and plunger force.

A bracket housing and base-plate layout decouple the coil, cut tolerance issues, and improve durability in variable valve actuators.

A stretchable coil and elastic frame balance magnetic and elastic forces to deliver bi-directional soft actuation with low holding power.

A tube member joined to a flat plate secures magnetic path area, cuts parts and cost, and keeps the mover operating smoothly.

Annular seals and stator positioning features block dust and shavings from the mover space, preventing plunger jamming during assembly and use.

An integrated yoke and resilient membrane improve segmented mirror actuator efficiency, linear response, and low mechanical coupling.

A one-piece bearing and cover section protects the armature chamber from contaminants while cutting parts, assembly time, and axial space use.

One coil drives two parallel plungers at different current thresholds, cutting actuator bulk and cost while enabling sequential actuation.

Alternating drive and sensing coils with state-variable transfer reduces switching artifacts in inductive actuator displacement measurement.

Integrating the hinge support into the coil bobbin eliminates discrete yoke and spring parts, reducing assembly complexity.

A guide sleeve constrains the magnetic piston within an electromagnet, minimizing parasitic air gaps and reducing hysteresis losses.

Segmented conical and annular plunger surfaces boost actuating force while resisting environmental vibrations without latching.

Circuit arrangement energizes two electromagnetic devices to switch a bistable valve armature, reducing required ampere turns and coil size.

A multiplexed circuit switches electromagnetic coils between pull-in and holding voltage sources to reduce energy demand.

Transverse magnet orientation reduces device volume while maintaining reliable voltage pulse generation through electromagnetic induction.

A bistable electromagnetic actuator uses a magnetic field detector to monitor the permanent magnet position for reliable signal output.

Dual coils stabilize plunger in intermediate position without magnet, reducing device complexity and volume.

Replacing fastening nuts, the caulking ring creates a permanent positive connection that simplifies assembly while improving durability.

Segmenting driver circuits on one chip via a channel reduces parasitic interference while meeting safety standards.

Replacing copper with carbon nanotube composites reduces power loss and enables smaller electromagnetic actuators by improving conductivity ratios.

A magnetic coil generates a voltage pulse during discharge to determine object position without extra sensors.

A magnetic flux path uses a non-conducting bushing on the armature shaft to redirect permanent magnet flux.

A frustoconical permanent magnet concentrates flux to maintain holding force while relaxing dimensional tolerances for lower assembly costs.

A solenoid drive uses a swivel ring yoke to maintain compact volume while enabling fast switching.

A manual adjustment mechanism displaces the magnetic core to set the working air gap width in an electromagnetic actuator.

Segmenting the bobbin windings into pick up and hold coils reduces leakage flux, increasing magnetic force with lower ampere-turns.

A bistable electromagnet uses a cavity-mounted magnetic field sensor to detect shuttle position through flux changes.

Nesting a permanent magnet within a coil support cavity reduces magnetic distance to boost drive force without compromising structural strength.

Nested armatures in a multi-stage actuator extend axial stroke by up to 220 percent while maintaining compact dimensions.

Threaded pole assembly adjusts the solenoid air gap to maintain flux density, avoiding inefficiencies from additional mechanical spacers.

Profile sections shift magnetic flux from narrow air gaps to wider areas, reducing transverse forces and wear in high-cycle electromagnetic actuators.

An electromagnetic actuator design reduces audible noise by positioning a resilient key between the magnetic base and stator frame to absorb impact energy.

A dual energy storage circuit reverses current direction through an inductor to generate distinct magnetic field phases.

Glass ceramic washer replaces bobbin grooves to protect magnet wire and improve magnetic performance.

An intermediate support structure with resiliently deformable members accommodates thermal expansion between a ferromagnetic flux guide and an insulated electrical conductor.

Radial magnets hold the armature without continuous current, eliminating energy waste and leakage flux while absorbing shock loads.

A reversing electromagnet uses a permanent magnet to hold the armature in end positions without continuous power.

A soft latching bidirectional solenoid uses a flux circuit to hold the plunger in position without continuous power.

An electromagnetic actuator regulates coil current through switching windings between series and parallel modes.

A guard locking electromagnet uses a switching regulator and energy store to supply power via a fieldbus.

A bidirectional linear actuator uses a ferritic core to channel magnetic flux and generate precise electromagnetic forces.

Local cold forming on a ferritic stainless steel pole core improves wear resistance while maintaining soft-magnetic properties.

A solenoid armature contains a movable permanent magnet to eliminate biasing springs.