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Jellyfish-shaped buoy energy harvesting system

A technology of energy collection and buoys, which is applied in the direction of current collectors, electric vehicles, electrical components, etc., can solve the problems of high manufacturing cost of solar power storage devices, high degree of weather dependence, and unsuitability for promotion, and achieve high energy conversion efficiency and energy saving The effect of labor cost and simple design structure

Active Publication Date: 2017-01-04
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of design is to make full use of solar energy. The structure is often relatively large, and it is highly dependent on the weather. The working efficiency is limited by the environment such as cloudy and rainy days. In addition, the manufacturing cost of solar power storage devices is relatively high, so it is not suitable for promotion.

Method used

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  • Jellyfish-shaped buoy energy harvesting system
  • Jellyfish-shaped buoy energy harvesting system
  • Jellyfish-shaped buoy energy harvesting system

Examples

Experimental program
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Effect test

Embodiment 1

[0028] An energy harvesting system for a jellyfish-shaped buoy, including an energy pick-up device, an energy harvesting circuit, and an energy storage device, through which the energy contained in the water flow is collected and converted into DC power, which can be used to supply power to electric devices such as buoys. The energy harvesting circuit adopts an ultra-low voltage input boost circuit, and the energy storage device adopts a rechargeable battery. The energy pickup device is designed as a jellyfish-like structure according to bionics, so as to maximize the energy contained in the vibration of water. Such as figure 1 As shown, the energy pickup device includes an elastic piezoelectric element 3; an upper conductive ring 2; a lower conductive ring 5; a thin tube 4; The elastic piezoelectric element 3 is a sandwich structure, which includes an upper metal film 7 , a flexible piezoelectric film 8 and a lower metal film 9 from top to bottom. The upper metal film 7 and...

Embodiment 2

[0029] Embodiment 2: Since buoys and other electrical devices need to supply a large amount of power, in order to meet the energy supply of buoys and other electrical devices, in this embodiment, the energy pick-up device adopts multiple strings of "jellyfish-like structures". The difference between this embodiment and Embodiment 1 is that the energy pick-up device in this embodiment adopts multiple strings of the "jellyfish-like structure", figure 2 The dashed lines in represent several of the "jellyfish-like structures" omitted. figure 2It is a schematic diagram of multiple strings of "jellyfish-like structures" used in the energy pickup device in the jellyfish-shaped buoy energy harvesting system of the present invention. The energy pickup device includes a plurality of elastic piezoelectric elements 3, and a plurality of upper conductive The ring 2, the plurality of lower conductive rings 5, the plurality of diversion grooves 1, the thin tube 4 and the sinker 6. Accordi...

Embodiment 3

[0031] Embodiment 3: If a novel charge amplifier is added to the energy harvesting circuit in Embodiment 1 or Embodiment 2, the jellyfish-shaped buoy energy harvesting system can be used as a sensing device with a measurement function. In this embodiment, the new charge amplifier refers to a specially designed charge amplifier with high input impedance and high sensitivity in combination with the characteristics of the elastic piezoelectric element 3 itself, and its input impedance can reach the order of 10^12 ohms , The charge-voltage conversion part uses a CBB capacitor to ensure its reliable working condition, and a two-stage active filter low-pass filter is also used in the processing circuit. Experiments show that the lower limit frequency of the new charge amplifier can reach 0.06 Hz, and its gain can be adjusted through a variable resistor, and the gain can be adjusted to the best state according to experiments or experience.

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Abstract

The invention discloses a jellyfish-shaped buoy energy harvesting system. The jellyfish-shaped buoy energy harvesting system comprises at least one energy pickup device, an energy collection circuit and an energy storage device, wherein the energy pickup device comprises elastic piezoelectric elements, upper conducting rings, lower conducting rings, a tubule and diversion trenches, wherein the upper conducting rings and the lower conducting rings are respectively arranged at the upper ends and the lower ends of the elastic piezoelectric elements, the tubule penetrates through the middle parts of the upper conducting rings, the elastic piezoelectric elements and the lower conducting rings, the energy collection circuit and then energy storage device are arranged in a heavy box, the energy pickup devices are in sequence connected in series through the tubule, and lower end of the tubule is penetrated into the heavy box. The jellyfish-shaped buoy energy harvesting system disclosed by the invention prolongs the service life of electrical devices of a buoy and the like and saves a lot of manual labor caused by repeated replacement of batteries, and is environment-friendly.

Description

technical field [0001] The invention relates to the technical field of energy collection, in particular to a jellyfish-shaped buoy energy collection system. Background technique [0002] The data observed by coastal and island observation stations can only reflect the situation in the offshore and adjacent island waters, and cannot provide sea state information for ocean navigation. The above problems can be solved by setting up ocean buoys. Ocean buoy is a modern ocean observation equipment used to collect marine environmental data and monitor the marine environment. It is fixed in the designated sea area and fluctuates with the waves. It can work around the clock in harsh environments and measure regularly every day. A variety of hydrometeorological elements serve military, navigation, fishery, and marine development. Most ocean buoys are powered by primary batteries, which have a limited lifespan and need to be replaced regularly. Ocean buoys are far away from land, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/18H02J7/32
CPCH02J7/32H02N2/185
Inventor 邓华夏王哲敏杜宇于连栋张进马孟超
Owner HEFEI UNIV OF TECH
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