Propulsion Systems TRIZ Cases

Corner and side voice coil drives move the image sensor for focus and stabilization while shrinking camera module size and weight.

Series-connected same-phase coils and sequential magnet angles suppress end-effect thrust ripple without complex magnet widths.

Magnet and magnetometer feedback tracks movable member position and vibration to correct play, wear, and handling errors in forming assemblies.

A spring-tensioned cable resets the movable electrical conductor without sliding contacts, cutting wear and impedance in electrodynamic setting tools.

Dual electromagnetic sub-drives shift the image sensor in multiple directions to keep OIS accurate as camera lens modules become heavier.

A two-part end shield separates bearing support and centering to keep rotor-stator air gaps uniform and simplify transport and assembly.

Integrated axial and transversal actuators move the image sensor in five axes for autofocus and stabilization in compact camera modules.

Segmented series coils in dielectric-coated bobbin cavities boost force at high voltage while limiting permanent magnet heating.

Permanent magnets and electromagnetic coils replace fuel combustion to deliver low-emission power generation with reduced maintenance.

Periodic ON-OFF electromagnet sequencing drives rotor nutation and skipping motion while smoothing state transitions and magnetic contact paths.

Separate axial and transversal actuators give image sensors five-axis stabilization and autofocus in compact camera modules while reducing magnetic cross-talk.

A motor-actuated plunger reproduces honeycomb braking in dummy neck certification, cutting setup time, waste, and replacement cost.

An integrated housing protrusion creates elastic-member clearance for smooth large-stroke bobbin travel, improving focus control and cutting parts.

A constrained iron core to winding pitch ratio limits magnetic saturation and keeps inductance trajectories aligned for accurate sensorless pole estimation.

Dividing the armature into spaced portions cuts leakage magnetic flux between coils while preserving effective flux and raising thrust density.

Direct coil-magnet actuation moves the imager without ball friction, improving motion control precision and camera stabilization.

Moving the image sensor instead of the lens preserves autofocus and image quality when under-display cameras receive less light.

Ball-bearing carrier frames let a camera image sensor shift for OIS and autofocus while fixed magnets limit magnetic interference in compact modules.

A nested one-phase coil set with higher turns preserves thrust and impedance in a compact linear motor coil structure.

Lorentz-force chip motion replaces large voice coil motors, shrinking camera anti-shake modules without losing stabilization.

A latch-held SMA actuator improves small-volume membrane valve dispensing by cutting dead volume, cycle time, and continuous wire energization.

A single sliding shutter and spring-biased connectors protect visual and infrared cameras while cutting actuator complexity and cost.

A high-permeability coil carrier section creates reluctance force to offset armature weight and prevent uncontrolled motion without added hardware.

A metal-resin integrated holder thins the optical unit, secures magnet and spherical pivot support, and limits impact damage.

Biasing the OIS driver opposite gravity keeps it within a stable range, improving VDIS/EIS during intense device shake.

A shared permanent-magnet stator drives two independently controlled sliders to cut mass and inertia in fast pick-and-place motion.

A softening member between the drive element and coupling portion redistributes swing stress to protect durability and preserve deflection control.

Symmetrical rotors and movable bottom seats redirect elastic force away from the swing rod, improving oscillation stability and service life.

Alternating mirror-image coils cancel leakage flux and reduce core loss, enabling lighter electromagnetic machines with higher power output.

A π/2 magnet offset and specific stator current phase shifts let a 6n-tooth linear motor cut pulsation while maintaining thrust.

Segmented central and side magnets raise magnetic field use through the coils, producing stronger, more stable vibration in full-screen electronics.

Shared magnets and axial-transversal actuators give an image sensor 5-DOF motion for autofocus, tilt compensation, and compact stabilization.

Embedded molding tape keeps connection pins inside the voice coil motor base, preventing shorts to the housing and simplifying camera module assembly.

A bridged slide across parallel linear guides distributes load to keep a linear motor stage compact while preserving rigidity and guide life.

Offset ring magnets and a ferromagnetic central ring let one coil drive and latch a translator in two directions with lower weight and complexity.

An integrated moving space in the housing lets the VCM bobbin travel both directions without spacers, reducing interference and assembly complexity.

Corner focusing drive and side stabilization drive reduce camera module size, interference, and assembly complexity while preserving precise sensor motion.

A trench in the lower elastic piece adds local flexibility, closing the terminal-induced gap and improving voice coil motor welding stability and precision.

Polar-anisotropic magnets spanning each pole reduce yoke parts and assembly steps in a linear motor while maintaining magnetic field control.

A voice coil and piezoelectric vibrating body are arranged side by side to widen output band and simplify acoustic tuning in compact speakers.

Electromagnetic coils and guide tracks orient a camera payload smoothly at low voltage, keeping a moving user's face centered in frame.

An integrated housing with through-holes and coupled support surfaces cuts part count and simplifies linear unit assembly while preserving positioning accuracy.

An integrated flexure-circuit structure removes ACF bonding to improve data transfer, power delivery, and thermal performance in sensor-shift cameras.

Flexible stator and slider tubes use Lorentz-force actuation to deliver linear motion while bending, reducing rigidity and control complexity.

Replacing slotted bobbin windings with segmented PCB coils reduces moving mass and profile while improving thermal conductivity and vibration tolerance.

A linear drive passive unit uses a lateral guidance plate to maintain symmetric force conditions during movement.

Extracting magnets from the moving secondary part reduces inertia, enabling high dynamic short strokes with extended maintenance intervals.

Segmented spiral coils on a planar substrate generate linear vibratory motion to produce varied vibration frequencies for mobile notification differentiation.

Magnetic reluctance zones replace return springs in electromagnetic transducers, eliminating lateral bearing forces and enabling tunable spring rates.