Device for transmitting electric power from a wall to a wing fastened to said wall in a hinged manner

1. A device for transmitting electrical power from a fixed wall to a wing attached to the fixed wall in a hinged manner about a hinge axis, the device comprising:

a wall part configured to be fastened to the fixed wall;

a wing part configured to be fastened to the wing;

a primary coil arranged on the wall part, the primary coil comprising an end side, a primary coil winding and a primary coil housing with ferromagnetic or ferrimagnetic properties, the primary coil housing being configured to be open on an end side facing the wing part and to substantially cover the primary coil winding on an opposite end side; and

a secondary coil arranged on the wing part, the secondary coil comprising a secondary coil winding and a secondary coil housing with ferrimagnetic or ferromagnetic properties, the secondary coil housing being configured to be open on an end side facing the wall part and to substantially cover the secondary coil winding on an opposite end side;

wherein,

the end side of the primary coil and the end side of the secondary coil are arranged so as to face each other, and

at least one of the primary coil and the secondary coil is mounted in a spring-loaded manner in the wall part or in the wing part so as to be pushable against the respective other primary coil or secondary coil in a direction of the hinge axis.

2. The device as recited in claim 1 , wherein at least one of the primary coil housing and the secondary coil housing comprises an inner jacket wall around which the respective primary coil winding and secondary coil winding is wound.

3. The device as recited in claim 2 , wherein the inner jacket wall is formed cylindrically.

4. The device as recited in claim 2 , wherein at least one of the primary coil housing and the secondary coil housing comprises an outer jacket wall which is arranged so as to be concentric to the inner jacket wall.

5. The device as recited in claim 2 , further comprising a bolt, wherein the primary coil housing and the secondary coil housing each comprise an opening which extends approximately concentric to the inner jacket wall in a direction of the hinge axis and through which the bolt defining the hinge axis is insertable.

6. The device as recited in claim 5 , wherein, on a length that is covered by the primary coil and by the secondary coil, the bolt comprises a sleeve with ferromagnetic properties or ferromagnetic properties.

7. The device as recited in claim 6 , further comprising a recess which extends concentric to a longitudinal axis of the bolt, wherein the sleeve is provided in the recess.

8. The device as recited in claim 6 , wherein the sleeve comprises a plastic material comprising ferrite particles.

9. The device as recited in claim 8 , wherein the ferrite particles contain a manganese-zinc-ferrite material.

10. The device as recited in claim 1 , wherein at least one of the primary coil housing and the secondary coil housing are formed in one piece from at least one of plastic-containing ferrimagnetic particles and plastic-containing ferromagnetic particles.

11. The device as recited in claim 10 , wherein the at least one of plastic-containing ferrimagnetic particles and plastic-containing ferromagnetic particles comprise a manganese-zinc-ferrite material.

12. The device as recited in claim 1 , wherein at least one of the primary coil housing and the secondary coil housing further comprise an electrically-conductive shielding.

13. The device as recited in claim 12 , wherein at least one of the primary coil housing and the secondary coil housing further comprise an outer surface, the electrically-conductive shielding comprises an electrically-conductive coat or an electrically-conductive layer which is arranged on the outer surface of the at least one of the primary coil housing and the secondary coil housing.

14. The device as recited in claim 1 , wherein the primary coil winding and the secondary coil winding consist of litz wires suitable for a primary voltage, a secondary voltage, primary currents and frequencies, and a secondary currents and frequencies.