Compact integrated rotary joint

A disc-type rotary joint comprising a first part and a second part configured to rotate about a rotation axis against the first part,

• wherein:
• the first part includes at least one first magnetic core, at least one sliding brush, and at least one first capacitive data link component,
• the second part includes at least one second magnetic core configured to couple power with the at least one first magnetic core, at least one sliding track configured to galvanically couple with the at least one sliding brush, and at least one second capacitive data link component configured to transfer data from and/or to the at least one first capacitive data link component;
• wherein:
• the at least one first magnetic core is mounted at a first distance from the at least one second magnetic core thereby forming an airgap between the at least one first magnetic core and the at least one second magnetic cores;
• wherein:
• a first winding is within the at least one first magnetic core and a second winding is within the at least one second magnetic core;
• wherein:
• the rotary joint is a disc-type rotary joint, and
• the at least one sliding track is arranged radially between the at least one second magnetic core and the at least one second capacitive data link component,
• wherein:
• the first part and the second part are arranged on opposing sides of a common plane that is orthogonal to the rotation axis, and
• the first part includes a first printed circuit board (PCB), which further includes an electrically conductive track arranged at the same radial position as the at least one sliding track and which is electrically connected to the at least one sliding brush, wherein an axial distance between the electrically conductive track and the at least one sliding track is smaller than or equal to an extent of the air gap between the at least one first magnetic core and the at least one second magnetic core.