ENERGY RECOVERY DEVICE

摘要

The invention relates to an energy recovery device comprising: a converter (20) that can convert a variation in the energy to be recovered into a corresponding excess of electric charges; a circuit (382) for collecting the excess of electric charges, said circuit being equipped with a controllable switch (384); and a device for controlling the switch, which device can control the switching of the switch to the closed position. The control device can: exert a force that biases the electric contacts towards one another, said force varying continuously according to the amount of electric charge at the first terminal and abutting the electric contacts against one another only when the excess electric charge exceeds a pre-determined threshold; and/or ionise the electrically insulating medium in order to generate an electric arc between the two electric contacts only when the excess electric charge exceeds the pre-determined threshold.