Patent ID: 8547056

Claim:
A car charger, comprising an enclosure and a circuit board, the enclosure receiving the circuit board that has opposite side edges and a rear end therein and the rear end of the circuit board being electrically connected to a power output port, a single-piece negative-electrode conductive spring plate being directly mounted to and electrically connected with the circuit board in such a way that the negative-electrode conductive spring plate projects beyond one of the side edges, wherein the enclosure is integrally formed as a one-piece configuration that comprises a circumferential wall that defines an accommodation chamber formed in the enclosure and has a rear end forming an opening in communication with the accommodation chamber for receiving insertion of the circuit board into the accommodation chamber, a through hole being formed in the circumferential wall in communication with the accommodation space, the rear end opening and the accommodation space being of a predetermined cross-sectional configuration to guide the insertion of the circuit board into the accommodation chamber at a predetermined angular position with respect to the enclosure so that the circuit board is positioned and oriented in the accommodation space with the negative-electrode conductive spring plate being directly fit in and projecting out of the through hole of the circumferential wall of the enclosure.