Patent attributes
An electrical connection box has a first case, a second case, a drain hole, an upward-protruding outer wall, and a downward-protruding inner wall. The second case is assembled beneath the first case. The drain hole is formed in an overlap surface of the second case overlapping the first case, the drain hole vertically penetrating the second case. The upward-protruding outer wall is formed at an outer side of the drain hole of the overlap surface, the upward-protruding outer wall being disposed at an outer side of the first case and protruding upward. The downward-protruding inner wall is formed on the first case, the downward-protruding inner wall being disposed at an inner side of the second case and protruding further downward than the overlap surface.
