Device and method for harvesting energy
First Claim
1. A device for harvesting energy comprising:
- a housing;
a mechanical spring engaged with said housing between a static and dynamic state;
a first magnet engaged with said mechanical spring;
a grid engaged with said housing;
a composite structure comprising a fixed magnet and a piezoelectric material;
said composite structure is engaged with said grid and in communication with said first magnet;
said first magnet and said fixed magnet apply a force upon said piezoelectric material when said mechanical spring is in said static state to produce a base voltage by a piezoelectric mode; and
excitation of said mechanical spring causes said piezoelectric material to generate a first alternating voltage output comprising a first peak voltage by a piezoelectric mode greater than said base voltage by a piezoelectric mode.
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Accused Products
Abstract
A miniature energy harvesting device for producing electricity from acoustical energy, stray electromagnetic energy, noise and from energy of different anatomical motions. The device comprises a housing, a mechanical spring engaged with the housing between a static and dynamic state and a first magnet engaged with the mechanical spring. The device further comprises a conductive grid freely moveable within a cavity of the housing. The device further comprises a composite structure comprising a fixed magnet and a piezoelectric material. The composite structure is engaged with the grid and in communication with the first magnet. The first magnet and the fixed magnet apply a force upon the piezoelectric material when the mechanical spring is in the static state to produce a base voltage. Excitation of the mechanical spring causes the piezoelectric material to generate an alternating voltage output having a peak voltage greater than the base voltage.
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Citations
33 Claims
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1. A device for harvesting energy comprising:
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a housing; a mechanical spring engaged with said housing between a static and dynamic state; a first magnet engaged with said mechanical spring; a grid engaged with said housing; a composite structure comprising a fixed magnet and a piezoelectric material;
said composite structure is engaged with said grid and in communication with said first magnet;
said first magnet and said fixed magnet apply a force upon said piezoelectric material when said mechanical spring is in said static state to produce a base voltage by a piezoelectric mode; andexcitation of said mechanical spring causes said piezoelectric material to generate a first alternating voltage output comprising a first peak voltage by a piezoelectric mode greater than said base voltage by a piezoelectric mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A device for harvesting energy comprising:
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a housing; a first mechanical spring engaged with said housing; a first magnet engaged with said first mechanical spring; a first grid engaged with housing; a first composite structure comprising a fixed magnet and a piezoelectric block;
said first composite structure is engaged with said first grid and faces said first magnet;
said first magnet and said fixed magnet apply a force upon said piezoelectric block when said first mechanical spring is in said static state to produce a first base voltage;a second mechanical spring engaged with said housing; a second magnet engaged with said second mechanical spring; a second grid engaged with said housing; a second composite structure comprising a fixed magnet and a piezoelectric block;
said second composite structure is engaged with said second grid and faces said second magnet;
said second magnet and said fixed magnet apply a force upon said piezoelectric block of said second composite structure when said second mechanical spring is in said static state to produce a second base voltage; andexcitation of said first mechanical spring causes said piezoelectric block of said first composite structure to generate an first alternating voltage output comprising a first peak voltage greater than said first base voltage; and
excitation of said second mechanical spring causes said piezoelectric block of said second composite structure to generate an second alternating voltage output comprising a second peak voltage greater than said second base voltage.- View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification