Patent ID: 8089757

Claim:
A waterproof structure for a housing of a portable electronic apparatus, the waterproof structure comprising: a cover comprising a pivot portion, the cover being connected to the housing via the pivot portion such that the cover is capable of rotating in relation to the housing; and an elastic pad comprising at least one protrusion structure and at least one auxiliary protrusion structure, the at least one protrusion structure being capable of inserting into a waterproof groove on the housing corresponding to the protrusion structure, the at least one auxiliary protrusion structure being disposed outside of and around the at least one protrusion structure, and the height of the at least one auxiliary protrusion structure being lower than the height of the at least one protrusion structure; wherein, when the cover is rotated to close the housing, the cover is capable of compressing the elastic pad to form a seal between the at least one protrusion structure and the waterproof groove.