| 摘要 |
A bone conduction vibrator capable of improving low-frequency sound effects comprises a cylindrical housing (2) and an elastic piece (4) disposed near the bottom of the housing (2). The elastic piece (4) comprises an upper elastic piece body (8) and a lower elastic piece body (10) that are disposed spaced from each other, and a column (12) connecting the upper elastic piece body (8) and the lower elastic piece body (10). A bowl-shaped support (14) is disposed on one side of the upper elastic piece body (8) facing the opening of the housing (2). A magnet (16) is disposed at the bottom of the support (14). A circuit board (20) and an upper cover (22) arranged at the outer side of the circuit board (20) are disposed at the opening of the housing (2). A coil (26) is disposed on one side of the circuit board (20) facing the support (14). The coil (26) and the magnet (16) are concentrically arranged, and the coil (26) is at least partially wound around the magnet (16). The bone conduction vibrator vibrates by means of the magnet (16), so that the elastic piece (4) is driven to vibrate and air is compressed to enable people's ear bones to hear sound. The vibrator has a simple structure and a small volume, and makes no noises. The elastic piece (4) is in point contact with the magnet (16) by means of the column (12), and has a high amplitude and good low-frequency sound effects. The vibrator can be arranged in the main body of an earphone, and therefore external vibration is reduced and noise reduction is achieved. |
