Passives Element zur Strömungserzeugung in mechanisch verformbaren Umgebungen

The invention relates to an assembly for converting mechanical energy into electrical energy, said assembly comprising: a passive element for generating a fluid current, wherein the passive element is attached to a mechanically deformable environment such that mechanical energy is generated upon mechanical deformation of the environment which influences the mechanical element and thus generates a fluid current to an opening of the passive element; and a piezo electrical energy converter having at least one piezo electrical element in which a mechanical force caused by the fluid current can be coupled such that the piezo electrical element is excited to mechanical vibration and current is generated via the piezo electrical effect which can be used for a self-sufficient supply, in particular for decentralized local systems (actuators or sensors, for example). Said indirect type of energy coupling of the mechanical environmental energy into the piezo electrical element according to the invention has the advantage that the fluid current can be generated in a very defined manner and a potential mechanical overload in the environment does not directly overcouple on the piezo electrical element upon suitable configuration of the passive element. A defect or destruction is thus avoided according to the invention.