BOBBIN AND LOUDSPEAKER USING THE SAME

摘要

A bobbin is a hollow tubular structure formed of a carbon nanotube composite structure. A loudspeaker includes a magnetic circuit; a bobbin; a voice coil; and a diaphragm. The magnetic circuit defines a magnetic gap. The bobbin is located in the magnetic gap. The voice coil is wounded on the bobbin. The diaphragm includes an inner rim fixed to the bobbin. The bobbin is a hollow tubular structure formed of a carbon nanotube composite structure.