US Patent 11342700 Plug receiving device

A plug receiving device includes a main body having an inner space therein and having an open front face and an open top, wherein conductor pins to be inserted into pin holes of an outlet protrude from an outer rear face of the main body, wherein first electrical connectors are disposed on an inner rear face of the main body; a shield coupled to an inner rear face of the main body and having a vertically slidable slider; and a removable insert to be removably inserted into the inner space, wherein the removable insert has second electrical connectors disposed on an outer face thereof, wherein when the removable insert is inserted into the inner space such that the removable insert presses down the slider of the shield, the second electrical connectors are electrically connected to the first electrical connectors and then to the conductor pins, respectively.