Current transmission device for charging electrical energy stores of vehicles at overhead charging stations

Abstract

The invention relates to a vehicle-side current transmission device (4) for the stationary charging of electrical energy stores of vehicles (7) at charging stations by means of current-supplying contact surfaces (13, 14, 14) arranged above the vehicle (7), wherein a charge current collector (4) formed as an articulated arm system (4) is designed to be multi-pole and has, for making stationary contact with the current-supplying contact surfaces (13, 14, 15), at least two electrical contact elements (1, 2, 3) isolated from one another, which transmit different electrical phases. On the basis of the present invention, the charge current collector is used to create a current transmission device which enables at least two or a plurality of electrical contacts to be made via one single current collector, said electrical contacts being able to transmit different electrical phases while grounding the vehicle at the same time. The design as an articulated arm system allows the current transmission device according to the invention to be implemented in an especially compact design with low weight. A vehicle-side charging device thus designed enables the vehicle driver to simply position the vehicle below the overhead charging station, coupled with a reliable contacting of the contact surfaces.

Dependencies are inferred from the claim text.