ELECTRODYNAMIC CONVERTER Russian patent published in 2002 - IPC

FIELD: radio engineering. SUBSTANCE: invention refers to loudspeakers. Electrodynamic converter incorporates body 1 with permanent magnets, ring 2 and cylindrical 3 placed in it coaxially. Magnetization axes of permanent magnets 2, 3 are turned through 180 degrees with formation of two parallel radial magnetic fluxes of opposite direction in gap between permanent magnets. Voice coil 8 comprises two sections with equal number of turns and opposite direction of winding. Each section is positioned in zone of one magnetic flux. EFFECT: exclusion of any mechanical vibration of voice coil with cone and increased mechanical force determining sound pressure. 2 dwg