Slip ring unit with a printed circuit board

DETAILED DESCRIPTION An object of the present invention is therefore based on making possible a slip ring unit with a printed circuit board which is distinguished by a simple and cost-effective construction.
This object is attained by a device for transferring electric currents that includes a slip ring unit that has a rotor with connecting wires and a stator and a printed circuit board fastened to the rotor, wherein the printed circuit board includes connectors in electrical contact with the connecting wires, wherein a torque required for rotary movement between the rotor and the stator is introduced via the printed circuit board.
The above-mentioned object is also attained by a device for transferring electric currents that includes a slip ring unit that has a stator with connecting wires and a rotor and a printed circuit board fastened to the stator and having connectors that are in electrical contact with the connecting wires of the stator and wherein the printed circuit board is used as a torque support.
Other aspects of the device in accordance with the present invention are intended to be used for operating remote-controlled objects.
A slip ring unit is understood to be a device including a rotor and a stator and has connecting wires, which are conducted inside the slip ring essentially in the axial direction and are respectively in electrical contact with sliding contacts at the stator and rotor.
The connecting wires can be embodied either as a solid cable, or as stranded conductors including several twisted individual wires.
The connecting wires are customarily surrounded by an insulating layer, which is often removed in the area of the ends of the connecting wires.
The above mentioned sliding contacts (for example rings and matching spring-loaded wire elements) should be mentioned as further components of the slip ring unit, which are in sliding contact when the slip ring is in operation and transmit the electrical current.
In particular, those slip ring units are addressed in what follows, in which the rotor and stator have an essentially cylindrical, or hollow-cylindrical, form