A power generation switch according to an aspect of the present disclosure includes a holder section; a power generator having a fixed end which is fixed to the holder and a free end which freely vibrates in a first direction, the power generator generating a power due to the free vibration of the free end, the power generator including an attraction member; an arm section extending in a second direction from the free end to the fixed end, the arm section having an axis at an end closer to the fixed end than to the free end, the arm section rotating around the axis of the arm section, the arm section including a magnet that is attached to or released from the attraction member by a rotation of the arm section; a lever section fitting to the arm section, the lever section extending in the second direction, the lever section having an axis at an end closer to the fixed end than to the free end, the lever section rotating around the axis of the lever section, the lever section pressing the arm section; and a top plate pressing the arm section or the lever section.

The invention consists of a washing or washing/drying machine comprising a frame, an assembly constrained to said frame by constraint means that allow said assembly to oscillate relative to said frame, energy recovery means configured to transform kinetic energy in electrical energy, wherein said energy recovery means comprise a current generator configured to transform the oscillations of said assembly into an electrical current.

A device transducing fluid dynamic energy into electrical energy, usable as a flow meter or energy harvester, includes a mechanical interaction element with a fluid flow, which is brought into oscillation or vibration by the fluid flow, by way of one or more elastic suspension elements; a magnetic induction electromotive force generator, dynamically connected to the mechanical interaction element by the fluid flow, which crosses an electric conductor, moved in the magnetic field by the oscillating or vibrating motion of the mechanical interaction element, thus generating an induced current in the conductor; and a collection unit for the electrical signal generated by induction. The mechanical interaction element is suspended to oscillate around an axis transversal to the flow direction and corresponding to a transversal axis half way along the mechanical interaction element.

An electrical power generator comprises a capturing element (1) attached to a base (1000) in correspondence with a first end (11) thereof. The capturing element is located in a fluid and configured such that, when the fluid moves, the capturing element generates vortices in the fluid which produce an oscillating movement of the capturing element (1). The capturing element (1) has a cross section with a characteristic dimension, which decreases from a first longitudinal position (11A) located closer to the first end (11) than to a second end (12) until a second longitudinal position (12A) located closer to the second end (12) than the first longitudinal position (11A).

A waterproof passive wireless controller includes at least one waterproof assembly, at least one driver assembly, at least one power generator, at least one communication module, and at least one housing. The waterproof assembly and the housing form at least one waterproof chamber, wherein the power generator and the communication module are disposed in the waterproof chamber. In response to an external force applied on the driver assembly, the power generator is enclosed in a waterproof manner and is driven to actuate by the driver assembly to converts mechanical energy into electrical energy to power the communication module, such that the communication module is activated for sending out a control signal.

A mechanical device that can generate decentralized electrical power and/or hydraulic fluid pressure on a continual basis, using fully integrated omnipresent energy sources which remain unchanged.

A harvesting system that includes a dynamo with a rotor and a stator, a push magnet that is attached to the rotor or is a part of it, a moving magnet that moves from a first position to a second position, and a push back magnet. The repulsive magnetic force that is exerted by the moving magnet on the push magnet in the second position is greater than that force in the first position. The moving magnet moves from the first position to the second position and causes the rotor to rotate from a dynamo first position to a dynamo second position that causes the dynamo to produce current. When the moving magnet moves back to the first position the dynamo returns to its first position due to magnetic force that the push back magnet exerts on the push magnet.

A hydrokinetic energy based power generation system is described, including several modules filled with fluid or vacuum and anchored to a stream bed of water body, multiple basic units associated with each module for converting hydrokinetic energy into electrical energy, wherein each basic unit includes two springs affixed with a top and bottom portion of the modules in such a way that the hydrokinetic energy induces vibrations within the springs, a cylindrical tube positioned between the springs, and contained with a ferromagnetic fluid, two fixed magnets and a movable magnet, wherein the movable magnet oscillates in between the fixed magnets due to the induced disturbances caused by waves/ocean and repulsive forces caused by the fixed magnets, an electric coil associated with the tube, for generating electric current by harnessing the relative motion of the movable magnet and electric coil due to electromagnetism phenomenon and in accordance with laws of electromagnetic induction.

An electromagnetic device for converting input mechanical energy into output electrical energy, including a movable element that is able to make a vibratory mechanical movement, a vibration source configured to actuate the vibratory mechanical movement of the movable element, a coil, a magnetic circuit passing through the coil, the coil being configured to generate the output electrical energy when the movable element is making its vibratory mechanical movement, a permanent magnet arranged in the magnetic circuit and able to generate a magnetic flux, referred to as the total magnetic flux (Fm_T), in the magnetic circuit.

In general, devices and systems for a tangentially actuated magnetic momentum transfer generator, and methods of use thereof, are provided. In an aspect, an electrical generator having a plurality of turns of wire forming a coil, a rotating magnet positioned in the coil, at least one stationary magnet positioned about the coil, and a slider movable relative to the rotating magnet in a direction tangential to an outer surface of the rotating magnet are provided. The slider can be configured to cause rotation of the rotating magnet, and the rotation of the rotating magnet and/or an interaction of the rotating magnet with a magnetic field of one or more of the at least one stationary magnet and the slider magnet can induce a voltage across a first terminal end and a second terminal end.