The invention relates to an energy transmission device (30) having a connection unit (32) for connecting an electrical energy source (16) or an electrical energy sink (12), a transmission member (34) which is electrically coupled to the connection unit (32) and which can be electrically coupled to a second transmission member (34) for transmitting electrical energy, and a cleaning unit (36) that is designed to introduce a cleaning medium (37) into a transmission path (26) between the first transmission member (34) and the second transmission member (34) in order to remove particles (28) from the transmission path (26).
