| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure of antenna case, that can prevent the infiltration of an air flow containing misty water drops into the inside of a case, particularly, into a portion where an antennal element, electronic components, or substrate is provided from a drain hole when the structure is exposed to rainstorms. SOLUTION: An air chamber 22 is positioned in between a parts chamber 21 and the drain hole lie. The parts chamber 21 and the air chamber 22, opened to the outside through the drain hole lie are divided from each other by a partition wall section 23. In the air chamber 22, a plurality of partition wall sections 25A-25C, which prevents the passage of air and water, when the air and water try to pass through the chamber 22 is provided.
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