US Patent 7794251 Electronic device having replaceable plug

An electronic device includes a main body, a plug and a fixing member. The main body includes a plug-receiving portion and a plurality of conductive portions. The plug-receiving portion is defined by a first sidewall, a second sidewall and a bottom surface. The first sidewall is opposed to the second sidewall. The bottom surface is connected to the first sidewall and the second sidewall. An inclined angle between the bottom surface and at least one of the first sidewall and the second sidewall is smaller than 90 degrees. The plug includes a plurality of conductive terminals, a first slant corresponding to the first sidewall, and a second slant corresponding to the second sidewall. The fixing member is used for facilitating fixing the plug in the plug-receiving portion of the main body such that the conductive terminals of the plug are electrically connected to the conductive portions of the main body.