Pneumatic System Low Power Consumption Device Powered Porous Flow Increased Vibration Piezoelectric Energy Harvester
A piezoelectric energy harvesting and pneumatic system technology, applied to electrical components, piezoelectric effect/electrostrictive or magnetostrictive motors, machines/engines, etc., can solve the problem of low energy conversion efficiency and improve energy conversion Efficiency, wide application prospect, effect of improving power generation efficiency
Active Publication Date: 2018-03-06
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 piezoelectric energy harvester of a low-power consumption device in a pneumatic system that supplies energy to a multihole-increased-flow excitation type piezoelectric energy harvester, which is used for low-power consumption sensors and other low-power electronics. The device provides an energy supply device with sustainable operation and high energy conversion efficiency
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[0021] combine Figure 1~Figure 11 This embodiment will be described. This implementation mode provides a specific implementation scheme of a piezoelectric energy harvester of a low-power consumption device in a pneumatic system that supplies energy to a multi-hole increased flow excitation type piezoelectric energy harvester. The low power consumption device of the pneumatic system supplies energy to the porous flow-increasing excitation piezoelectric energy harvester, which is composed of three parts: the annular hole flow increasing device 1, the grid-type piezoelectric energy harvesting device 2 and the set screw 3, wherein the annular hole The current increasing device 1 and the grid-type piezoelectric energy harvesting device 2 are fastened and connected by a set screw 3 .
[0022] The annular hole 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 an...
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The present invention discloses a pneumatic system low-power consumption device energy supply porous current-increasing excitation type piezoelectric energy harvester. The objective of the invention is to solve problems such as lower energy conversion efficiency of a piezoelectric energy harvester which is currently used for converting gas energy in an industrial environment. The piezoelectric energy harvester of the invention is composed of an annular hole flow-increasing device, a grid-type piezoelectric energy harvesting device and set screws, wherein the annular hole flow-increasing device is firmly connected with the grid-type piezoelectric energy harvesting device through the set screws, the annular hole flow-increasing device can increase the flow rate of a high-pressure small-flow gas, and the grid-type piezoelectric energy harvesting device can convert the pressure energy of the gas into electrical energy. The piezoelectric energy harvester of the invention can increase the flow rate of the gas and harvests the pressure of the gas of which the flow rate is increased, and therefore, the electric energy generation efficiency of the piezoelectric energy harvester can be significantly improved and can be improved by more than 3 times. The piezoelectric energy harvester of the invention can be widely applied to low-power consumption electronic equipment, Internet-of-Things node and low-power consumption sensor energy supply technical field.
Description
technical field [0001] The invention relates to a piezoelectric energy harvester of a low-power consumption device for energy supply of a pneumatic system, and belongs to the technical field of energy supply for low-power electronic equipment. Background technique [0002] With the continuous improvement of the intelligence 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 machinery manufacturing equipment. At present, stable and reliable continuous power supply to IoT nodes is the prerequisite to ensure the normal operation of nodes. At present, the 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 leads to serious electromagnetic interference and complicated system wiring, while the chemical battery...
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IPC IPC(8): H02N2/18F01K27/00
CPCF01K27/00H02N2/185
Inventor 程廷海王占礼付贤鹏张邦成陈茜炎殷梦飞何璞
Owner CHANGCHUN UNIV OF TECH