VOICE COIL, ELECTRODYNAMIC SPEAKER, METHOD OF MANUFACTURING VOICE COIL, AND METHOD OF MANUFACTURING ELECTRODYNAMIC SPEAKER

摘要

PROBLEM TO BE SOLVED: To suppress the effect of a tinsel wire connected to a coil in a voice coil used for an electrodynamic type speaker.;SOLUTION: A voice coil 50 includes: a bobbin 52 formed in a slender annular shape having a long axis A-A' and a short axis B-B' as symmetric axes; a coil 54 which is wound around along the slender annular shape of the bobbin 52 and in which a winding start terminal 56 and a winding end terminal 58 are pulled out to positions of two symmetric intersection points where the long axis A-A' crosses the slender annular shape; and tinsel wires 70, 72 which are pulled out by being extended to both sides of the long axis A-A' from connection points 60, 62 by using symmetric points as the connection points 60, 62 in the respective winding start terminal 56 and winding end terminal 58 of the coil 54.;COPYRIGHT: (C)2015,JPO&INPIT