| 摘要 |
<p>PROBLEM TO BE SOLVED: To protect electric components inside a box from water, without increasing the number of required components and assembling man hours, even when high water pressure is applied like in jet cleaning, etc. SOLUTION: In a part of an upper cover 4 near its joining part to a lower cover 1, a leakage water lead-out portion 21 which leads out water having entered to the side of the internal surface of the lower cover 1, and discharges the water into the lower cover 1 is formed. In a inside part further than the lead-out portion 21, a water preventing wall 22 which is formed integrally as the peripheral wall of a relay box and a connection box body 2, and prevents entry of water into these, is formed. Besides, the upper cover 4 is provided with a peripheral wall portion 23 which covers the peripheral surface 20b of the brim portion 20 of the opening of the lower cover 1, and the peripheral surface of the lower cover 1 is provided with a touching protrusion 24 which the lower end surface 23a of the wall portion 23 touches.</p> |
