Electromagnets With Armatures TRIZ Cases
- Solenoid Valve Coil Current Threshold for Low-Energy Hold Open
Pulsed coil energizing finds the minimum hold-open current for solenoid valves, cutting energy use while adapting to valve tolerances.
- Monolithic Magnetic Actuator Core Tube for Hydrogen Tightness
A monolithic core tube eliminates sealing points and uses local magnetic separation to prevent hydrogen leakage in fuel cell and electrolyzer actuators.
- Detent Solenoid Groove Geometry for Stable Armature Positioning
A toroidal-conical groove and spring-loaded detent hold the armature at rest while improving magnetic-force-assisted solenoid travel.
- Actuating Magnet Armature Groove for End-of-Stroke Force Control
An annular groove in the magnet armature flattens the force-displacement curve, cutting end-stroke force for faster switching and smaller valves.
- Solenoid Position Estimation via Inductance Phase Shift
AC excitation and current-voltage phase shift reveal solenoid inductance, enabling position sensing without a separate sensor.
- Magnetic Actuator Weight Adjustment Without Magnetic Path Loss
A through-hole weight adjustment section trims movable-body mass while preserving the magnetic path and vibration output.
- Axial Solenoid Core Structure for Higher Magnetic Flux Efficiency
By removing the elastic-member gap and welding the flange to the container bottom, this solenoid improves magnetic flux flow and plunger force.
- Variable Valve Actuator Bracket Housing for Simpler Assembly
A bracket housing and base-plate layout decouple the coil, cut tolerance issues, and improve durability in variable valve actuators.
- Stretchable Electromagnetic Actuator With Bi-Stable Soft Structure
A stretchable coil and elastic frame balance magnetic and elastic forces to deliver bi-directional soft actuation with low holding power.
- Electromagnetic Actuator Magnetic Path Assembly With Fewer Parts
A tube member joined to a flat plate secures magnetic path area, cuts parts and cost, and keeps the mover operating smoothly.
- Electromagnetic Actuator Sealing Structure Against Plunger Jamming
Annular seals and stator positioning features block dust and shavings from the mover space, preventing plunger jamming during assembly and use.
- Segmented Mirror Actuator Structure for Linear, Low-Coupling Control
An integrated yoke and resilient membrane improve segmented mirror actuator efficiency, linear response, and low mechanical coupling.
- Electromagnetic Actuator Bearing Assembly for Contaminant Protection
A one-piece bearing and cover section protects the armature chamber from contaminants while cutting parts, assembly time, and axial space use.
- Single-Solenoid Double Actuator for Sequential Parallel Plunger Actuation
One coil drives two parallel plungers at different current thresholds, cutting actuator bulk and cost while enabling sequential actuation.
- Shared-Coil Inductive Sensing for Transient-Free Actuator Position Estimation
Alternating drive and sensing coils with state-variable transfer reduces switching artifacts in inductive actuator displacement measurement.
- Solenoid Actuator Hinge Support Integration
Integrating the hinge support into the coil bobbin eliminates discrete yoke and spring parts, reducing assembly complexity.
- Electromagnet Guide Sleeve Minimizes Parasitic Air Gap
A guide sleeve constrains the magnetic piston within an electromagnet, minimizing parasitic air gaps and reducing hysteresis losses.