Power generator
First Claim
Patent Images
1. An electrical power generator comprising:
- at least one serpentine element having high stress state corners and formed as one piece throughout its thickness, comprised of a poled piezoelectric or electrostrictive ceramic;
one or more electrically conductive shims or foils and at least two electrically conductive electrode coatings on the serpentine element;
wherein the conductive electrodes are further electrically connected to an electrical load or energy storage device or both and the serpentine element is mechanically affixed to a source of compression or vibration or both; and
wherein the electrical power generator has a high voltage output proportional to geff and has a tuned power generation of at least 100 mW/in2.
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Abstract
An electrical power generator has one or more serpentine elements that are made of a poled piezoelectric or electrostrictive ceramic, one or more electrically conductive shims or foils and at least two electrically conductive electrode coatings on the serpentine element. The conductive electrodes are further electrically connected to an electrical load or energy storage device or both, and the serpentine element is mechanically affixed to a source of compression or vibration or both.
52 Citations
31 Claims
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1. An electrical power generator comprising:
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at least one serpentine element having high stress state corners and formed as one piece throughout its thickness, comprised of a poled piezoelectric or electrostrictive ceramic; one or more electrically conductive shims or foils and at least two electrically conductive electrode coatings on the serpentine element; wherein the conductive electrodes are further electrically connected to an electrical load or energy storage device or both and the serpentine element is mechanically affixed to a source of compression or vibration or both; and wherein the electrical power generator has a high voltage output proportional to geff and has a tuned power generation of at least 100 mW/in2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 31)
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19. A method of generating electrical power comprising:
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providing at least one serpentine element having high stress state corners and formed as one piece throughout its thickness, comprised of a poled piezoelectric or electrostrictive ceramic, two or more electrically conductive electrode coatings, and one or more electrically conductive shims or foils on the serpentine element; electrically connecting the conductive electrode coatings to an electrical load or energy storage device or both; and mechanically affixing the serpentine element to a source of compression or vibration or both; wherein the mechanical compression or vibration or both causes an electrical power generator to bend or flex, thereby stretching and contracting the serpentine element and producing electrical power; and wherein the electrical power generator has a high voltage output proportional to geff and has a tuned power generation of at least 100 mW/in2. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification