Optimizing average pore diameter and porosity in a PTFE membrane preserves high-frequency sound quality while reducing the permeation region area.
Segmenting ventilation paths prevents performance degradation from pressure leakage while maintaining compact overall size.
A member-fastening structure uses projecting parts and through-holes to secure three components together without screws.
Integrates a conductive element into the support frame of a speaker module, eliminating separate flexible circuit boards and reducing assembly complexity.
A capacitive displacement sensor detects diaphragm movement using fixed and movable conductive plates aligned radially inward of the voice coil.
A waterproof sound-transmitting sheet uses a communication groove in the adhesive layer to enable air exchange between inner and outer spaces.
Positioning a speaker hole between a curved edge and a plate resolves space constraints while maintaining antenna performance.
An electrospun PVDF nanoweb on a support layer prevents micropore enlargement under pressure, maintaining waterproofing and sound efficiency.
Replacing curved diaphragms with a planar design and a penetrating cavity simplifies manufacturing while maintaining uniform sound production.
A waterproof sound-transmitting sheet uses a stiff reinforcement member to minimize layer displacement under pressure.
An intermediary deflector redirects port airflow externally, eliminating turbulence and noise near the transducer.
Convex grille geometry stretches acoustic fabric tautly over speaker openings, eliminating adhesive bonding costs and preventing airflow-induced distortion.
Driving diaphragm vibrates air in speaker box to generate sound, eliminating complex micro-magnetic structures and reducing internal space occupation.
Bonding the diaphragm to upper and outer basket surfaces prevents warping and separation during leak inspections without reducing acoustic performance.