Waterproof structure of battery mounting part in electronic equipment

摘要

PPROBLEM TO BE SOLVED: To provide a waterproof structure that can surely waterproof battery mounting part of an electronic apparatus, does not require dimensional accuracy and accurate mounting position, or preventing a circuit board from large stress. PSOLUTION: On an electronic apparatus, having a battery mounting part 11 mounting a power source battery arranged on outer surface side of an apparatus case 10, and an opening part exposing tip parts of power source terminals 2 mounted on a circuit board 3 that is housed in the apparatus case formed on the apparatus case 10, a waterproof packing 4 is formed by soft rubber, a first ring-shaped rib 41 is formed at periphery of a hole part 40 from which the tip part of the power source terminals are protruded, and a second ring-shaped rib 42 is formed at outside of the first ring-shaped rib. The first ring-shaped rib elastically contacts a battery pack 101 mounted in the apparatus case 10, and the second ring-shaped rib 42 elastically contacts the inner face of the apparatus case 10 at circumference of the opening part 12. PCOPYRIGHT: (C)2007,JPO&INPIT