| 摘要 |
PROBLEM TO BE SOLVED: To increase the structural strength of a driving magnetic circuit and a vibrating body to facilitate the assembling as a vibration actuator for generating sound and low-frequency vibration when generating sound and vibration. SOLUTION: By using a method of driving an electric sound converter of voice coil type to softly support a magnetic circuit, large vibration and sound are generated. A support 16 is passed through a hole made in the central part of the magnetic circuit and the vibrating body which are fixed at the upper and lower ends of the support 16, thereby increasing structural strength, facilitating the assembling, and also increasing the accuracy. |
