| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a waterproof case capable of suppressing the generation of negative pressure inside the case due to a temperature difference between the inside and outside of the case and reducing the absorption of moisture into the case. <P>SOLUTION: The waterproof case includes: a case body 1 which is provided with an opening 1a and stores an electronic apparatus mounted with a component B; and a lid body 2 which is attached to the case body 1 and closes the opening 1a. The lid body 2 has a projection 2d on an inner surface. As a result, since outside heat is transferred to the inside of the case through the case body and the lid body which are material with heat conductivity higher than the air, and the temperature inside the case easily follows the temperature rise outside the case, the time of which the negative pressure is generated inside the case is shortened, and the moisture content absorbed by air flow into the case is reduced. Also, since the projection is formed on the inner surface of the lid body, a gap inside the case is reduced and the amount of air sucked into the case by the negative pressure is reduced, thereby the moisture content absorbed into the case together with the air flow is reduced. <P>COPYRIGHT: (C)2012,JPO&INPIT |
