Waterproof box with tiny and blind passages

摘要

When cleaning water hits a lower wall 33h of a first waterproof portion 33 of an upper cover 15, and the water is thrown up to the upper cover 15, a tapered outer wall 30b of the first waterproof portion 30 and a tapered inner wall 33g of the first waterproof portion 33 come into contact with each other, and are engaged with each other to close an entrance side of a tiny passage 27. Even if the water enters, the water enters a blind passage 33b to reduce the force of the water. The water of which force is reduced falls down. It is effective for improving waterproof performance to reduce the force of the water by the blind passage 33b.

主权项

1. A waterproof box comprising:
a box main body having a peripheral wall and receiving components inside of the peripheral wall, the components being susceptive to moisture; a cover having a cover peripheral wall and covering an opening provided at an edge of the peripheral wall of the main body; a waterproof structure portion provided at the edge of the peripheral wall of the main body; and a waterproof structure portion provided at an edge of the cover peripheral wall of the cover, wherein the waterproof box is waterproofed by the waterproof structure portions of the main body and of the cover overlapped with each other, and wherein the waterproof structure portion of the main body includes an outer wall of a first waterproof portion of the main body, the waterproof structure portion of the cover includes an inner wall of a first waterproof portion of the cover that comes into contact with the outer wall of the first waterproof portion, and face toward each other to form a tiny passage, and a plurality of blind passages are between the waterproof structure of the main body and the water proof structure of the cover, the plurality of blind passages each forming a space of a desired size,wherein a second waterproof portion is disposed subsequent to the first waterproof portion and the third waterproof portion is formed subsequent to a second waterproof portion,
wherein the first waterproof portion is disposed at an entrance side of the tiny passage, and the third waterproof portion is disposed at an exit side of the tiny passage, and wherein the first waterproof portion and the second waterproof portion are made up of at least a space defined between two vertical surfaces and two horizontal surfaces.