Power supply arrangement for notebook computers

Claim 1

A power supply arrangement comprising: a bottom shell for a notebook computer, said bottom shell having two adjacent battery chambers and a power input socket, each battery chamber having at least one retaining rod; at least one battery set for installation in said battery chambers respectively to provide DC power supply to the notebook computer, said at least one battery set having a retaining hole for engagement with the retaining rod in the battery chamber in which said at least one battery set is installed, and an electric connector for connection to a power supply circuit of the notebook computer; an adapter for converting AC power supply into DC power supply, said adapter comprising an electric connector at a rear end thereof for connection to the power supply circuit of the notebook computer, a power cable at a front end thereof for connection to a city power supply outlet, two longitudinal tracks at two opposite lateral sides thereof, and two retaining holes respectively made on said longitudinal tracks; and a power connector for connecting the electric connector of said adapter to the power input socket of the notebook computer, said power connector comprising two parallel side wings for connection to the two lateral sides of said adapter, two hooked portions respectively raised from said side wings for insertion through said longitudinal tracks into the retaining holes on said longitudinal tracks, an electric connector for connection to the electric connector on said adapter, a T-bar at a back side of said power connector, and an electric cable wound round said T-bar and having one end fixedly connected to the electric connector of said power connector and an opposite end for connection to the power input socket of the notebook computer.