| 摘要 |
An electroacoustic transducer includes a magnetic circuit unit that forms a magnetic gap, a voice coil inserted into the magnetic gap, and a diaphragm to which the voice coil is connected. The diaphragm has a central portion having an outer peripheral edge and an annular portion disposed underneath the central portion. The annular portion has an outer peripheral edge corresponding to the outer peripheral edge of the central portion, and an inner peripheral edge secured to the magnetic circuit unit. The diaphragm further has a joint portion formed at the outer peripheral edges of the central and annular portions, and the outer peripheral edges are joined together. The voice coil is disposed underneath the central portion of the diaphragm and joined to the joint portion.
|
