Patent ID: 9392370
Filing Date: 2016-07-12
CPC Classification: H04R

Claim Text:
1. A voice coil speaker comprising: a diaphragm supported by a frame; and a bobbin that is connected to the diaphragm and has voice coils formed thereon, wherein: the bobbin has a bobbin main portion that is formed of a flexible printed board and that has the voice coils wound therearound, and an extension portion that is integrally formed with the bobbin main portion, extends from a part of the flexible printed board, and has signal lines conducted to the voice coils, cutout portions are formed at both sides of a base portion of the extension portion, and the extension portion is placed to extend at a back side of the diaphragm in a state that a part of the bobbin main portion which is surrounded b the cutout portions is raised from the bobbin main portion.