An apparatus comprises a piezoelectric element and a mechanical energy storage unit. The mechanical energy storage unit can be configured to receive a force and store the force as stored mechanical energy. The apparatus further comprises a mass configured to receive the stored mechanical energy from the mechanical energy storage unit when the stored mechanical energy is released, move with a velocity as a result of receiving the stored mechanical energy, and deform the piezoelectric element based on the velocity of the mass.

Plug (3) for a liquid-product dispensing container (1), and container (1) including said plug (3). The plug (3) includes a casing (5) to which the following is mounted: an actuator (7), to be pressed by a user for dispensing the liquid product; a dispensing head (8) comprising a valve (9) for releasing the liquid product; and an energy harvesting mechanism comprising a piezoelectric element (11) with a first end (12) which is movable when the actuator (7) is pressed by the user, for pressing against the valve (9) so as to release the liquid product and to be subjected to pressure for obtaining electricity therefrom. The electricity is used for powering detecting means which detect a number of services, wireless communication means for sending information on the number of uses and a controller (6) for controlling the detecting means and the communication means.

A vibration energy harvester includes: a fixed electrode unit having a plurality of comb-tooth electrodes; a movable electrode unit having a plurality of comb-tooth electrodes; a weight fixed to the movable electrode unit; and an adjusting weight mounting structure capable of mounting an adjusting weight for additionally adjusting a mass of the weight.

A shoe energy collecting device includes a shell, a piezoelectric assembly, an elastic component, a magnet array, a base, a supporting block, an upper friction assembly and a lower friction assembly. The shell includes a supporting shell and a plastic shell connected in sequence. The base is provided below the supporting block in the supporting shell, the lower friction assembly is provided between the supporting block and the base. The upper friction assembly is provided on an inner wall of a top surface of the plastic shell. A coil is provided on a lower surface of the lower friction assembly at a side of the plastic shell, and the magnet array is provided below the coil. The piezoelectric assembly is provided in the plastic shell, the elastic component is provided on a side wall of the plastic shell away from the supporting block, and connected with the piezoelectric assembly.

Kinetic energy harvesting devices are disclosed including, but not limited to, portable and stationary devices that generate electricity from motion resulting from any type of movement including human movement, movement of traveling vehicles, gravitational movement, and movement resulting from stored spring energy. The kinetic energy harvesting devices can be used for charging batteries and powering devices such as personal electronic devices and electric vehicles.

Kinetic energy harvesting devices are disclosed including, but not limited to, portable and stationary devices that generate electricity from motion resulting from any type of movement including human movement, movement of traveling vehicles, gravitational movement, and movement resulting from stored spring energy. The kinetic energy harvesting devices can be used for charging batteries and powering devices such as personal electronic devices and electric vehicles.

An energy harvesting apparatus using an electroactive material includes an electricity generator including the electroactive material to generate a voltage due to deformation caused by an external stimulus, and an impact generator including a deformable and restorable material capable of repetitive deformation and restoration and configured to generate a dynamic behavior based on the repetitive deformation and restoration in the electricity generator. A stimulus of the impact generator with respect to the electricity generator enables energy harvest. An electrode unit for deformation includes an electricity generator including an electroactive material to generate a voltage due to deformation caused by an external stimulus, and an electrode part electrically connected to at least one surface of the electricity generator, and including an elastically deformable material to achieve relative deformation while in contact with the electricity generator.

The present invention is directed to a power bank with the capability to harvest electric energy which is then configured to charge its onboard battery such that the power bank is self-recharging. The energy harvesting power bank has an internal area provided with a piezoelectric mass suspended within a suspension frame by resilient members. The internal area is lined with piezoelectric film that is impacted by the piezoelectric mass as a result of the kinetic energy derived from movement of the power bank. As a consequence, the piezoelectric materials will generate electrical energy which will undergo conditioning by energy harvester electronics. The conditioned electrical energy is used to provide power to the USB charging port for use in recharging portable devices.

An energy harvester (100) includes: an inner band (110); an outer band (120) arranged to surround the inner band (110), wherein the inner band (110) is coupled to the outer band (120) at a fixed end (20) and the inner band (110) is spaced from the outer band (120) at a free end (30); and an energy generator (150) arranged to generate electric energy through relative movement between the inner band (110) and the outer band (120) at the free end (30). Also disclosed is a wearable device (10) including: a wearable strap formed by the inner band (110) and the outer band (120) of the energy harvester (100), and a mass (130) arranged to receive at least a portion of the wearable device (10).

The disclosure provides a remote control device, a piezoelectric laser pointer, and a remote control system. The remote control device includes a housing, and further includes: a power generator, mounted inside the housing and including a press mechanism and a power generating mechanism, where after being pressed by the press mechanism, the power generating mechanism is deformed under stress and generates electricity; a circuit controller, mounted inside the housing and electrically connected to the power generator; and a signal transceiver, mounted inside the housing, electrically connected to the circuit controller, and configured to transmit and receive signals. In the disclosure, the power generating mechanism generates power after being pressed by the press mechanism, and the power is transferred to the circuit controller, so that the signal transceiver is powered on. Dry batteries are no longer used, thus avoiding environmental pollution caused by used dry batteries.