| 摘要 |
<p>Provided is a thin speaker device capable of high-quality and high-volume bass reproduction by means of a large-area diaphragm. The speaker device is provided with a diaphragm (10), a stationary section (100) for vibratably supporting the outer periphery of the diaphragm (10) along the vibration direction thereof, and plural driving units (14) for supporting the back side of the diaphragm (10) at plural different positions and imparting vibration to the diaphragm (10) in response to an audio signal. The driving unit (14) is provided with a magnetic circuit (20) in which a magnetic gap (20G) is formed along a direction different from the vibration direction of the diaphragm (10), a voice coil (30) vibratably supported along a uniaxial direction in the magnetic gap (20G), and a rigid vibration direction change section (50) for changing the direction of the vibration of the voice coil (30) and transmitting the vibration change in direction to the diaphragm (10). The vibration direction change section (50) is equipped with a link portion (51) disposed obliquely with respect to the vibration direction of the voice coil (30) with joints (52) respectively formed on the diaphragm (10) side and the voice coil (30) side, and in each driving unit (14), the magnetic circuit (20) is disposed closer to the center of the diaphragm (10) than the respective joints (52) of the driving unit (14).</p> |
