Transformer head and system

Abstract

Transducer head for a system for contactless energy transmission, where the housing (1) of the transformer head surrounds a secondary coil together with its coil core and capacitors (6) to form a capacitance electrically connected to the coil, wherein the coil core is made of ferrite parts (12, 14), wherein within the housing (1) of the transformer head capacitors (6) and winding (20) are separated by means of ferrite parts (12, 14), wherein the capacitors (6) are mounted on circuit boards (5) between which insulation is arranged, wherein the circuit boards (5) are arranged parallel to each other, wherein two circuit boards (5) are arranged along each of two inner sides of the housing (1), the capacitors (6) being arranged facing away from each other. wherein insulating bodies are provided between circuit boards (5) and coil core, wherein the secondary coil is composed of partial windings, each of which is designed as a series resonant circuit with an associated capacitance, wherein the resonant frequency essentially corresponds to the mean frequency of the primary current, wherein the transformer head comprises a series connection of the series resonant circuits, comprising partial winding and each associated capacitance, wherein the coil winding is designed as a stranded flat strip (20), where potting compound is provided inside the transmitter head, wherein the conductor tracks of the circuit board (5) are electrically connected to the secondary coil, wherein the stranded flat ribbon (20) and the printed circuit boards (5) with the capacitors (6) are arranged in the same axial area or at least in overlapping axial areas.

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