Loudspeakers TRIZ Cases

Nested voice coils and dampers cancel vibration via opposing forces, improving damping while reducing thickness in space-constrained vehicle installations.

A calibration module detects input currents across multiple vibration frequencies to determine the precise vibration point of a speaker.

Offsetting the suspension attachment point on a bi-conical support structure increases stiffness and reduces rocking vibrations in low-profile designs.

Varying thickness and reinforcing ribs balance tension forces to improve bass quality.

An electronic sound enhancement system generates desired engine audio signals in the passenger compartment using a controller and amplifier.

Dual-layer polymer suspension structures increase micro-speaker rated power while preserving dynamic range via localized stiffness gradients.

Sealed bone conduction receiver uses a washer to amplify magnetic induction, resolving low field intensity and ambient noise interference.

A bone conduction microphone integrates the vibration collection unit and switch into a single housing surface.

Reduced stiffness actuator connections decouple massive components from the panel, boosting high-frequency acoustic output.

Varying diaphragm thickness near the welding plate compensates for asymmetric heat generation, ensuring rigidity symmetry and stable sound performance.

Layered conductive film eliminates suspended lead wires to reduce disconnection risk while enhancing low-frequency performance.

An accommodating recess in a mobile device body stores a detachable wireless earphone, enabling direct charging and automatic pairing via electrical connectors.

A system adaptively switches speakers to function as microphones and vibration detectors.

Integrating a circumferential duct into the frame reduces coupling complexity while enhancing bass performance.

Segmenting the bobbin into varying wall thicknesses prevents coil disconnection and reduces nonlinear distortion.

A back chassis protrusion prevents the vibration actuator from contacting the chassis, eliminating electrical short-circuits and preserving sound output.

Chamfered holder edges prevent deformation during injection molding, resolving manufacturing precision issues in speaker devices.

Segmenting the screen allows electromagnetic coils to fit into non-opening areas, resolving package size constraints for full-screen audio.

Voice coil lead wire extends inward to a flexible circuit board pad.

A loudspeaker with a protruding inner surface creates variable chamber width to minimize frequency response variations and reduce intermodulation distortion.

A segmented loudspeaker voice coil uses passive rectification units to attenuate current in auxiliary sections outside the magnetic air gap.

A speaker device uses an air-permeable isolation member to seal the sound-producing inner cavity while allowing acoustic airflow.

Integrates a speaker unit with a vibration assembly to emit sounds and provide vibrations, reducing interior space occupancy compared to separate installations.

Cam mechanism reduces equivalent stiffness in infinite acoustic baffles, enabling low-frequency reproduction without requiring large internal volumes.

A coaxial speaker merges high and low frequency magnetic circuits into a shared structure to reduce overall height.

Asymmetric rectangular geometry and segmented magnetic circuits eliminate split vibrations while improving heat dissipation.

Moving the sound hole from the bottom plane to the yoke side avoids magnetic circuit damage during dust screen installation.

Opposing magnetic fields in two gaps drive separate voice coils to nearly double sound volume, overcoming environmental noise in spatially constrained vehicles.

Annular rib frame suspends voice coil to increase vibration space, reducing structural thickness and weight.

A sound generator uses two voice coils in one magnetic frame to drive separate diaphragms.

Wavy suspension restricts lateral movement of the vibration member to ensure linear reciprocation and improve sound quality.

Opposing diaphragms cancel mechanical forces transmitted to the enclosure while maintaining acoustic output.

Integrated conductive framework eliminates contact terminals, reducing vibration system weight and enhancing low-frequency sound pressure.

An integrated transducer combines the speaker diaphragm and vibrator into one unit, eliminating separate component gaps that increase device thickness.

Extended diaphragm portion compensates for asymmetrical torque from voice coil leads, eliminating rear cavity needs and improving tone quality.

An elastic member deforms under movement stress to protect the voice coil from tilting.

A bone conduction speaker case uses controlled vibration to transmit sound through the skull.

Elastic cover ribs snap onto heat sink retaining fins to secure the enclosure while allowing quick service access without damaging the decorative housing.

Composite metal arms joined by high-loss damping material suppress unwanted vibrations while maintaining output power and efficiency.

Merging magnetic force with haptic actuator eliminates front speaker, reducing device area while maintaining audio capability.

Piezoelectric elements vibrate the display panel to generate sound, eliminating bulky separate speakers and improving design flexibility.

Shared acoustic volumes resolve compact device space constraints by merging speaker back volumes with haptic air gaps.

An extension part connects the magnetic circuit system to the housing, resolving poor installation strength and connection stability issues.

Direct signal cable integration eliminates soldering processes, reducing manufacturing complexity and improving connection reliability under vibrational stress.

Recessed ribs at specific angles suppress diaphragm rolling and even-order distortion to improve sound quality.

A hybrid driver merges a piezoelectric plate with a voice coil to extend high frequency response beyond standard limits.

A monolithic voice-coil balancing system stabilizes the diaphragm assembly using symmetric flexible dampers.

Inner side pad placement prevents diaphragm collision and elongates elastic arms, reducing noise and breaking risk.