| 摘要 |
A door-frame type flat speaker having a structure of separating a permanent magnet from a voice coil is provided to save space and to improve decoration property by providing a flat type speaker without comprising an enclosure of the speaker device. A speaker outputs sound by vibrating a diaphragm by converting an electrical signal into a vibration signal by electro-magnetic interaction between a permanent magnet and a voice coil in the speaker unit. The speaker unit converts an electrical signal from an audio source into voice. A paper is attached to one side of a window frame(100) as a diaphragm, and the permanent magnet or the voice coil is inserted into the part of the window frame. A voice coil or a permanent magnet is attached to the position located on the opposite part of the inserted permanent magnet or voice coil. |
