PIEZO-ELECTROMECHANICAL DEVICE FOR RECOVERING ENERGY FROM VEHICLE TRANSIT

摘要

The present invention concerns a device for recovering energy from vehicle transit destined to be positioned on a road surface. The device comprises: a magnetic element (16) generating a magnetic field, a coil (17) comprising metal windings defining a hollow configured to receive the magnetic element (16), piezoelectric means (14) and mechanical means configured such that when a vehicle transits on the device, they insert the magnetic element (16) into the hollow of the coil (17) so as to produce a first variation of a magnetic flux linked with the windings of the coil (17), such as to induce a first electric voltage on the coil (17). Said mechanical means are also configured such that when a vehicle transits on the device, they transfer at least partially a weight force of said vehicle onto the piezoelectric means (14) so as to deform them. Said piezoelectric means (14) are configured to generate at least a second electric voltage when they are deformed.