US Patent 7837559 Game controller with internal enclosure

A game controller includes a control unit and a control housing. The control unit includes a circuit board and a plurality of functional controls, wherein each of the functional controls has a movable control end and a signal end operatively coupling with the circuit board. The control housing includes an outer casing having a receiving cavity receiving the circuit board therein and a plurality of control holes for the control ends of the functional controls extending out of the receiving cavity, and an internal enclosure, which is received in the receiving cavity of the outer casing, having a sealing cavity for the circuit board supporting therein to form a double-wall structure to protect the circuit board and a plurality of guiding slots aligned with the control holes of the outer casing respectively to guide the functional controls extending to the control holes through the guiding slots respectively.