| 摘要 |
<P>PROBLEM TO BE SOLVED: To facilitate replacement for a battery, and to preclude a sound volume and tone quality of a sounding device from being lowered irrespective of a size of the battery, in a mobile electronic equipment provided with a battery hatch in a backcover of a main body case and equipped with the sounding device using a piezoelectric element. <P>SOLUTION: A battery hatch 30 has double structure to form an inner space 33 by a surface side cover part 31 and a backcover part 32. A battery holder 34 is provided in the backcover part 32, and a piezoelectric element 14 is fixed to the under face of the backcover part 32. A sound emission port 31b is formed in the surface side cover part 31 of the battery hatch 30. The battery hatch 30 is arranged to be concentric to a backcover 12. A battery block part 35 is provided in the battery holder 34 to maintain a prescribed clearance between a held battery 20 and the piezoelectric element 14. The piezoelectric element 14 is connected electrically to a circuit board 16 via a contact spring 17 and a continuity substrate 36. <P>COPYRIGHT: (C)2004,JPO |
