| 摘要 |
<p>With the intention of simplifying the manner in which a loudspeaker is mounted on a circuit board while maintaining requisite sealing and damping between the loudspeaker and the circuit board, the loudspeaker is affixed directly to the circuit board (1) by means of a double-side adhesive annulus (3) with the diaphragm of the loudspeaker facing towards the board, wherein the board has holes (4) located opposite the loudspeaker. The number of holes (4) provided and the size of the holes may be adapted to provide the best sound production in accordance with application. When a loudspeaker is mounted in this way, all components can be collected on the circuit board and therewith simplify manufacture of the telephone apparatus as such, irrespective of whether the circuit board is in the handset or some other part of the apparatus.</p> |
