Contactless electrical energy transfer device

A contactless electrical energy transfer device comprising:

• an electrical energy transmitter system and an electrical energy receiver system,
• the electrical energy transmitter system comprising:
• a first housing which has a first face oriented towards the second system when the first and second systems are magnetically coupled, and moving away from the first face,
• at least one first coil and a layer of ferromagnetic elements positioned in the first housing, the first coil comprising at least one first winding around at least one first zone without wire and a first winding axis at right angles to the first face,
• the electrical energy receiver system comprising:
• a second housing which has a second face oriented towards the first system when the first and second systems are magnetically coupled, and
• at least one second coil positioned in the second housing,
• the second coil comprising at least one second winding around at least one second zone without wire and a second winding axis;
• wherein the electrical energy transmitter system comprises at least one small column extending between first and second ends and having a longitudinal direction linking the first and second ends parallel to the first winding axis, said at least one small column passing through the first coil by passing through the first zone without wire,
• wherein the electrical energy receiver system comprises, in the second housing, a resin filled with ferromagnetic particles,
• wherein the second coil has an inner face oriented towards the second face of the second housing, an outer face opposite the inner face and a thickness corresponding to a distance separating the inner and outer faces, and
• wherein a volume of filled resin is formed as a body arranged between the outer face of the second coil and a first face of the second housing opposite the second face of the second housing, and at least one extension passing through at least one second zone without wire of the second coil, towards the second face of the second housing.