POWER GENERATION DEVICE

摘要

A device able to generate electrical power through relative rotational motion of first (370, 380) and second (200, 230) principal components around an axis of rotation (220); wherein: the first and second principal components comprise an arrangement of piezoelectric elements (380) and permanent magnets (230, 370) such that the interaction between these magnets and piezoelectric elements, in use, makes it possible to generate electricity; and wherein: the second principal component (200, 230) comprises a centre of mass offset from the axis of relative rotation (220) such that the response of the second principal component (200, 230) to either gravitational or inertial forces is a relative rotation of the second principal component (200, 230) in relation to the first principal component (370, 380); the first principal component (370, 380) being fixedly attached to the moving host structure (100).

主权项

1. A device for generating electricity by acceleration of and/or changes in orientation of the device, the device comprising first and second principle components, wherein:
the first principle component is mounted relative to the housing for resilient deformation and to generate electricity when so deformed; the second principle component is rotationally mounted relative to the housing for rotation relative to the housing and the first component, the center of mass of the second component being offset from its axis of rotation; and the two components are arranged to interact with each other during at least part of the rotational path of the second component to deform the first component and thereby generate electricity.