System for generating electrical energy in a linear motion device

A system for generating electrical energy in a linear motion device (10) that has a first device component (15) and a second device component (20), wherein the second device component (20) is supported on the first device component (10) by means of rolling elements (WK) such that the second device component (20) is configured to be moveable linearly relative to the first device component (15) and the rolling elements (WK) move relative to the first device component and the second device component when the second device component carries out a movement relative to the first device component during the operation of the linear motion device (10), wherein the system for generating electrical energy comprises:

• the rolling elements (WK) that are configured to be moveable along a direction of movement (BR) during the operation of the linear motion device;
• an apparatus (PM, MK1, MK2, MK3) for generating a static magnetic field in a spatial region (RB), which the rolling elements (WK) have to successively traverse while moving along the direction of movement (BR) during the operation of the linear motion device, wherein the rolling elements (WK) comprise a magnetically permeable material such that the rolling elements (WK) are suitable for influencing the magnetic field in dependence on the position of the rolling elements (WK) in the one spatial region (RB);
• and
• at least one induction coil (IS, IS1, IS2) with at least one coil winding, wherein the at least one induction coil (IS, IS1, IS2) is arranged stationarily relative to the apparatus (PM, MK1, MK2, MK3) for generating a static magnetic field in such a way that, due to a change in the position of the rolling elements (WK) during a movement of the rolling elements (WK) through the one spatial region (RB) along the direction of movement (BR), the induction coil experiences a change of a magnetic flux, which induces an electric voltage (Uind) in the at least one coil winding.