Water/drip-proof structure for acoustic member and electronic apparatus having the same
A digital camera having an acoustic member includes a first cover, a water-proof sheet and a second cover. The second cover is spaced from the water-proof sheet. The first cover has a first sound hole opposed to the acoustic member. The water-proof sheet is disposed such as to covers the first sound hole. The second cover has a second sound hole. The second sound hole is deviated in position toward an outer periphery of the first sound hole so that the second sound hole is not located on an extension of an axis of the first sound hole.
1. A water/drip-proof structure of a camera having an acoustic member, comprising:
a first member which has a first sound hole at a position opposed to the acoustic member;
a first water-proof sheet which is disposed on the first member so as to cover the first sound hole;
a second member which is spaced from the first water-proof sheet and disposed so as to face the outer surface of said water-proof sheet, and which has a second sound hole; and
a second water-proof sheet which is disposed between the first water-proof sheet and the second member which has the second sound hole,
wherein the first water-proof sheet is made of thin material having high water-proof ability compared with the second water-proof sheet, the first water-proof sheet enhancing water-proof ability,
wherein the second water-proof sheet is made of thick material having high sound-transmittancy and having low water-proof ability compared with the first water-proof sheet, the second water-proof sheet enhancing the impact resistance against water stream,
wherein the acoustic member, the first water-proof sheet and the second water-proof sheet are located on a same axis, and
wherein, when a water stream enters the second hole, the second water-proof sheet weakens momentum of the water stream entering from the second sound hole, and then the first water-proof sheet secures water-proof ability against the acoustic member and secures a sound-transmittancy from the first and second sound holes to the acoustic member, thereby securing sound quality detected by the acoustic member.
2. The water/drip-proof structure of a camera according to claim 1 , wherein the first sound hole and the second sound hole are located on a same axis.
3. The water/drip-proof structure of a camera according to claim 2 , wherein a first recess which has a larger diameter than the first sound hole and a second recess which has a larger diameter than the first recess are formed on the first member, the first water-proof sheet is fixed to a bottom surface of the first recess, and the second water-proof sheet is fixed to a bottom surface of the second recess.