| 摘要 |
PROBLEM TO BE SOLVED: To provide an electromechanical transducer which improves a degree of freedom in designing an armature and is capable of making excellent magnetic characteristics compatible with impulse resistance, and an electroacoustic transducer.SOLUTION: The electromechanical transducer includes: a structure part in which a pair of magnets (15 to 18), yokes (12 and 13) for guiding magnetic fluxes generated by the magnets and a coil (14) to which an electric signal is supplied are integrally disposed; an armature (19) including an inside part penetrating an internal space of the structure part and a first/second outside part protruding to both sides, and forming a magnetic circuit with the structure part via a gap where the magnetic fluxes are guided at both sides of the inside part; and a first/second elastic mechanism (24 to 27) held between the first/second outside part and the structure part for applying a restoration force corresponding to displacement of the armature to each outside part. The elastic mechanism includes a pair of elastic member which are disposed symmetrically in a direction of displacement while interposing the armature therebetween, and each elastic member is engaged to an elastic member mounting part of which one end is engaged to the outside part of the armature and the other end is provided in the yoke. |
