Energy harvesting device

摘要

The present invention relates to a very simple and robust wireless batteryless device (100) for harvesting energy. The actuation upon button pressure/release results in a rotation of a first member (1) around its central axis (11) leading to a move of an element (3), which is loosely fixed at the first member (1) from a pivot point (14), and a rotation around the central axis (11) of the second member (2) to which a generator axis of an energy harvester is coupled, the rotation axis of the generator being coincident with the central axis (11). Upon full pressure/release, the element (3) is forced to rotate around the pivot point (14), allowing a vertically raised pin (22) of the second member (2) to disengage a recessed area (31, 32) at each end of a slot (30) of the element (3) and the second member (2) to rotate to its rest position.

主权项

1. A wireless energy-harvesting device comprising:
a first member adapted to rotate around a central axis; a second member, mounted above the first member, and adapted to rotate around the central axis of the first member from a first end of the second member; an element, being loosely fixed at a portion of a second end of the first member at a pivot point, and having a slot formed through the element and a laterally raised portion, each end of the slot including a first and second recessed area, respectively; a first spring coupled to a portion of a first end of the first member; a second spring coupled to a portion of the first end of the second member; a first stop and a second stop facing the first stop, the first stop arranged to allow for the laterally raised portion of the element to rest against itself; a third stop and a fourth stop facing the third stop, arranged in a configuration to limit an angular motion of the first member and; a button, wherein the angular movement of the first end of the first member is induced by a pressure of the button and/or a release of the pressed button;wherein:
a second end of the second member has a vertically raised pin; a generator axis of an energy harvester is coupled to the second member such that the rotation axis of the generator is coincident with the central axis; the vertically raised pin is adapted to engage the slot of the element.