| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that, in a bathroom electronic apparatus comprising a diaphragm for regulating pressure within a sealed casing, since a size of the diaphragm is small relatively to a size of the casing and the diaphragm is only smoothly curved, a capability for mitigating a pressure difference between the inside and the outside of the casing may not be sufficient and in a bathroom television, for example, since the casing is large-sized in response to the tendency of enlargement in size, the sufficient mitigation of the pressure difference is unlikely to be expected even by applying the diaphragm to such the large-sized casing.SOLUTION: Within a wall surface of a casing, a cylindrical chamber part is provided which communicates with the outside, and further, within the chamber part, a pressure regulation part is provided which air-tightly separates the inside and the outside of the casing, moves within the chamber part depending on the pressure difference between the inside and the outside of the casing and reduces the pressure difference between the inside and the outside of the casing. |
