| 摘要 |
PURPOSE:To prevent the faulty insulation and connection of a lead wire and thereby raise the quality of the head by soldering the electrode of a electrostrictive strain vibrator directly to a printed wiring board and then molding the same in synthetic resin. CONSTITUTION:The inside electrodes 2 of a plurality of cylindrical electrostrictive strain vibrators 1 inserted respectively through a plurality of holes 9a of the printed wiring board 9 are connected with the lands 10a of an individual wiring pattern 10 respectively and fixed by a solder 12, while the outside electrodes 3 are connected with the lands 11a of a collective wiring pattern 11 respectively and fixed by the solder 12, and the device thus prepared is molded in the synthetic resin 6. |
