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1. WO2020095064 - IMPROVEMENTS IN OR RELATING TO ENERGY GENERATION IN A PIEZOELECTRIC SWITCH

Publication Number WO/2020/095064
Publication Date 14.05.2020
International Application No. PCT/GB2019/053173
International Filing Date 08.11.2019
IPC
H01L 41/04 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
02Details
04of piezo-electric or electrostrictive elements
H01L 41/113 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
08Piezo-electric or electrostrictive elements
113with mechanical input and electrical output
H01L 41/193 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
16Selection of materials
18for piezo-electric or electrostrictive elements
193Macromolecular compositions
H02N 2/18 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
2Electric machines in general using piezo-electric effect, electrostriction or magnetostriction
18producing electrical output from mechanical input, e.g. generators
CPC
H01L 41/04
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
02Details
04of piezo-electric or electrostrictive devices
H01L 41/113
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
08Piezo-electric or electrostrictive devices
113with mechanical input and electrical output ; , e.g. generators, sensors
H01L 41/1138
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
08Piezo-electric or electrostrictive devices
113with mechanical input and electrical output ; , e.g. generators, sensors
1138Membrane type
H01L 41/193
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
16Selection of materials
18for piezo-electric or electrostrictive devices ; , e.g. bulk piezo-electric crystals
193Macromolecular compositions ; , e.g. piezo-electric polymers
H02N 2/186
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
2Electric machines in general using piezo-electric effect, electrostriction or magnetostriction
18producing electrical output from mechanical input, e.g. generators
186Vibration harvesters
Applicants
  • UNIVERSITY OF HERTFORDSHIRE HIGHER EDUCATION CORPORATION [GB]/[GB]
Inventors
  • HERFATMANESH, Mohammad Reza
  • COUNSELL, Nathan
Agents
  • CSY HERTS
Priority Data
1818294.909.11.2018GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVEMENTS IN OR RELATING TO ENERGY GENERATION IN A PIEZOELECTRIC SWITCH
(FR) PERFECTIONNEMENTS APPORTÉS OU SE RAPPORTANT À LA PRODUCTION D'ÉNERGIE DANS UN COMMUTATEUR PIÉZOÉLECTRIQUE
Abstract
(EN)
The present invention provides an energy harvesting system that removes the need for batteries for sensing and actuating purposes through the use of energy harvesting materials such as piezoelectric transducers. The present invention particularly provides clamping and actuation mechanisms for energy harvesting applications including energy harvesting switches, more particularly energy harvesting wireless switches. The present invention is designed to produce sufficient instantaneous energy to power low-power circuits such as radio transmitters, allowing for seamless integration with existing smart devices. In addition, the system benefits from battery less operation, eliminating the need for regular battery maintenance and replacement as well as end of life recycling. An energy harvesting system is provided comprising: a) an energy harvesting material which generates energy when deformed or moved from a first position to a second position; and b) an energy generator support which has first and second mounting supports between which the energy harvesting material is mounted in the first position wherein the first and second mounting supports each have an internal surface and the internal surfaces are each provided with a layer of a resilient material and a layer of a non-resilient material wherein the layer of the non-resilient material engages the energy harvesting material.
(FR)
La présente invention concerne un système de collecte d'énergie qui élimine la nécessité d’utiliser des batteries à des fins de détection et d'actionnement grâce à l'utilisation de matériaux de collecte d'énergie tels que des transducteurs piézoélectriques. La présente invention concerne en particulier des mécanismes de serrage et d'actionnement pour des applications de collecte d'énergie comprenant des commutateurs de collecte d'énergie, en particulier des commutateurs sans fil de collecte d'énergie. La présente invention est conçue pour produire assez d'énergie instantanée pour alimenter des circuits de faible puissance tels que des émetteurs radio, permettant une intégration continue avec des dispositifs intelligents existants. De plus, le système bénéficie d'un fonctionnement sans batterie, ce qui élimine le besoin d'effectuer l’entretien et le remplacement réguliers d’une batterie ainsi que son recyclage en fin de vie. L'invention concerne un système de collecte d'énergie comprenant : a) un matériau de collecte d'énergie qui produit de l'énergie lorsqu'il est déformé ou déplacé d'une première position à une seconde position ; et b) un support de générateur d'énergie qui comporte des premier et second supports de montage entre lesquels le matériau de collecte d'énergie est monté dans la première position, les premier et second supports de montage ayant chacun une surface interne et les surfaces internes étant chacune pourvues d'une couche d'un matériau élastique et d'une couche d'un matériau non élastique, la couche du matériau non élastique venant en prise avec le matériau de collecte d'énergie.
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