US Patent 7851710 Waterproof and dustproof structure

A waterproof and dustproof structure is applied to a predetermined hole of a circuit board. A connection end of a connector could penetrate the predetermined hole. Moreover, the circuit board has a first surface and a second surface. The waterproof and dustproof structure can cover up the predetermined hole to isolate the first surface and the second surface. The interferences on the first surface may not move to the second surface through the predetermined hole. Therefore, when the connection end of the connector passes through the predetermined hole, the predetermined hole on the circuit board can be sealed via the waterproof and dustproof structure so as to achieve the goal of waterproof and dust prevention.