AN ELECTRICAL PLUG, AN ELECTRICAL JACK, A JACK AND PLUG SYSTEM AND A METHOD FOR PRODUCING AN ELECTRICAL PLUG

The present invention relates to an electrical plug (2) with a plug housing (128), a male rod (4) having multiple male contact elements (6) arranged spaced from one another on an outer surface thereof, at least one insulation member (8) interdisposed between neighboring male con¬ tact elements (6) and a central conductive structure (54) comprising conductive paths (30, 44, 46, 48, 50), whereby at least some of the conductive paths being electrically connected to an assigned male contact element (6). In order to provide plural conductive paths in a compact design, the present invention proposes to arrange at least some conductive paths (26, 30, 46, 48, 50) formed by leads non-concentrically when seen in cross sectional direction of the male rod (4). The inventive jack adopted to receive the above mentioned plug has a jack housing (142) defining a receptacle (144) and holding multiple female contact elements (146) exposed within the receptacle (144) and arranged therein to contact assigned predetermined male electrical contact elements (6) when the male rod (4) of the electrical plug (2) is inserted into the receptacle (144), wherein at least eight female contact elements (146) adopted to cooperate with male contact elements (6) arranged on the outer circumferential surface of the male rod (4). The inventive jack and plug system comprises the electrical plug and the electrical jack of the invention and is characterized in that the jack housing (142) and the male rod (4) are de- signed such that, when the male rod (4) is inserted into the receptacle (144), a reference surface (166) of the jack housing (142) cooperates with a distal end section (10) of the male rod (4). In the method of the invention the plug is produced by preassembling a central conductive structure (54) of the male rod (4), preparing multiple washer elements (8) and multiple ring elements (6) and arranging the washer elements(8) and the ring elements (6) coaxially to the axis of the male rod (4) in an alternating manner, and shifting the washer elements (8) in axial direction relative to each other to assume a predetermined position, inserting the central conductive structure (54) into the washer elements (8) and the ring elements (6), to assume the final position in which the lead elements (46-50) of the central contact structure (54) can contact the assigned ring elements (6), securing the central conductive structure (54) to the washer elements (8) and the ring elements (6), and providin