| 摘要 |
PURPOSE: A headphone or an earphone is provided to reproduce a dynamic and live three dimensional sound by vibrating vigorously a permanent magnet, a yoke, and a planar diaphragm. CONSTITUTION: A headphone or an earphone includes a hollow fixed coil(4), a resonance tube(10), a planar diaphragm(1), and a body(6). The hollow fixed coil is buried in the body having a blocked bottom and adhered by using an adhesion material to form the resonance tube. A ventilation hole(13) is formed at a center of a yoke(2) and a permanent magnet(3) to form the integrated planar diaphragm. The planar diaphragm is assembled to the body to form a headphone unit. Two resonance tubes(10,12) are formed by assembling front and rear covers(8). |
