| 摘要 |
PROBLEM TO BE SOLVED: To provide waterproof structure that easily mounts and dismounts waterproof rubber provided between a lid body and a case made of Mg or an Mg alloy to proof and seal the lid body and case, and prevents damages on a partition wall and peel-off of painting in replacement work. SOLUTION: In the waterproof structure of a power circuit where an annular partition wall is formed inside the outer wall of a container, a power circuit part is accommodated inside the annular partition wall, and ring-like waterproof rubber 5 is buried in a groove section formed on the outer wall, a slit 4 is provided from the upper section of an opening surface on one portion of the partition wall formed at the groove section.
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