Energy transformers for non-contact energy transmission and traction accumulator charging system

A traction accumulator charging system, comprising:

• an energy transmitter including:
• a magnetic conducting body having two large magnetic body surfaces for conducting a magnetic field, the two large magnetic body surfaces including a coil-facing first large magnetic body surface;
• a coil device configured to provide the magnetic field, the coil device including a coil arranged on the first large magnetic body surface, the coil including a plurality of coil windings each i) circumferentially arranged about an imaginary coil winding centre of the coil in a coil-like manner and ii) defining a coil winding circumferential length;
• a plurality of imaginary circumference section areas each extending along the coil winding circumferential length of a corresponding coil winding of the plurality of coil windings and through the magnetic conducting body between the two large magnetic body surfaces;
• the magnetic conducting body configured such that at least two circumference section areas of the plurality of circumference section areas are substantially identical to one another in terms of area;
• and
• a multi-part housing for receiving the coil device and the magnetic conducting body;
• a counter-energy transmitter including at least one receiver coil device interacting with the coil device in an energy transmitting manner;
• and
• wherein the receiver coil device is configured in an identical manner to the coil device.

An energy transmitter for a contactless energy transmission, comprising:

• a coil device configured to at least one of i) provide a magnetic field for a contactless energy transmission and ii) receive a magnetic field from the contactless energy transmission;
• a magnetic conducting body having two large magnetic body surfaces for conducting the magnetic field;
• the coil device including a coil, the coil including a plurality of coil windings arranged on a coil-facing first large magnetic body surface of the two large magnetic body surfaces;
• each coil winding of the plurality of coil windings circulatingly arranged coil-like along a circumferential direction extending about an imaginary coil winding centre of the coil and defining a coil winding circumferential length;
• and
• wherein the magnetic conducting body has a magnetic conducting body thickness defined between the two large magnetic body surfaces that is adaptable in the circumferential direction at any point along the coil winding circumferential length of at least one of the plurality of coil windings according to at least one of a predetermined change function and a predeterminable change function such the magnetic conducting body thickness is at least one of thicker and thinner in at least one of i) a plurality of edge regions of the magnetic conducting body and ii) a plurality of corner edge regions of the magnetic conducting body than in a plurality of intermediate edge regions of the magnetic conducting body, which in turn are located disposed between the at least one of i) the plurality of edge regions and ii) the plurality of corner edge regions.