A porous jet resonant piezoelectric energy harvester
A piezoelectric energy capture, porous jet technology, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, generators/motors, etc., can solve problems such as low energy conversion efficiency, and improve energy Conversion efficiency, wide application prospects, the effect of improving the efficiency of electricity generation
Active Publication Date: 2018-03-09
CHANGCHUN UNIV OF TECH
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Problems solved by technology
[0004] In order to solve the problem of low energy conversion efficiency of traditional piezoelectric energy harvesters, the present invention discloses a porous jet resonant piezoelectric energy harvester, which provides an energy supply with sustainable operation and high energy conversion efficiency for low-power electronic devices. with energy harvester
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[0020] to combine Figure 1~Figure 10 This embodiment will be described. This embodiment provides a specific implementation of a porous jet resonant piezoelectric energy harvester. It is characterized in that the porous jet resonant piezoelectric energy harvester is composed of a porous array flow increasing device 1 and a cylinder array piezoelectric generating device 2. The porous array flow increasing device 1 and the cylinder The array piezoelectric generating device 2 is fastened and connected by a set screw 3 .
[0021] The porous array flow increasing device 1 is provided with an air inlet 1-1 and an annular high-pressure air chamber 1-2, and the air inlet 1-1 is located on the cylindrical surface of the annular high-pressure air chamber 1-2 , the compressed gas enters the annular high-pressure air chamber 1-2 through the air inlet hole 1-1; the porous array flow increasing device 1 is provided with a threaded connection hole 1-3 of the flow increasing device, and the...
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The invention discloses a porous jet resonant mode piezoelectric harvester with an aim to solve the current problem about low energy exchange efficiency of a piezoelectric harvester used for converting gas energy in industrial environment. The porous jet resonant mode piezoelectric harvester is formed by a porous array type flow increasing device and a cylinder array type piezoelectricity electric power facility, and the porous array type flow increasing device is fixedly connected with the cylinder array type piezoelectricity electric power facility through stopper screws; flow of high-pressure small-flow gas can be amplified through the porous array type flow increasing device, and pressure of gas can be converted into electric energy through the cylinder array type piezoelectricity electric power facility. By the arrangement, the gas flow can be amplified, the pressure of the amplified gas can be harvested, electric-energy production efficiency of the piezoelectric harvester can be obviously improved, the electric-energy production efficiency can be increased by more than 3 times, and the porous jet resonant mode piezoelectric harvester has wide application range in technical fields of low-power electronic devices, Internet of Things nodes and low-power sensor energy supply.
Description
technical field [0001] The invention relates to a porous jet resonant piezoelectric energy harvester, which belongs to the technical field of power generation and energy supply of low-power electronic equipment. Background technique [0002] With the continuous improvement of the intelligent level of manufacturing equipment technology and its deep integration with the Internet of Things technology, a large number of Internet of Things nodes have been widely used in the field of mechanical manufacturing equipment. Stable and reliable continuous power supply to IoT nodes is the prerequisite to ensure the normal operation of IoT nodes. The current energy supply methods of IoT nodes in the field of machinery manufacturing mainly include direct power supply and chemical battery power supply. Among them, the direct power supply method has problems such as serious electromagnetic interference and complex system wiring, while the chemical battery power supply method has disadvantag...
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IPC IPC(8): H02N2/18
CPCH02N2/185
Inventor 程廷海付贤鹏赵宏伟包钢陈茜炎宋兆阳秦峰
Owner CHANGCHUN UNIV OF TECH