Patent ID: 7465887

Claim:
A waterproof casing for containing electronic components therein, comprising: a respiration filter having a respiration hole mounted on the casing for establishing air communication between an inside space of the casing and an outside of the casing; and a mounting plateau, formed on an outer surface of the casing, composed of a cylindrical portion rising from the outer surface of the casing toward the outside of the casing and a mounting surface connected to the cylindrical portion, the mounting surface being in parallel to the outer surface and elevated therefrom by the cylindrical portion, the mounting surface having a through-hole to which the respiration filter is water-tightly connected, wherein: a plane area of the mounting surface is larger than a plane area of a flange of the respiration filter facing the mounting surface; and a difference between the plane areas is smaller than a height of the respiration hole from the mounting surface.