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Photovoltaic-piezoelectric-electromagnetic compound type energy harvester

A composite, energy harvester technology, applied in photovoltaic power generation, photovoltaic power stations, piezoelectric effect/electrostrictive or magnetostrictive motors, etc., can solve the problem of long-term power supply of electronic products or sensors that are difficult to meet low power consumption It can improve the conversion efficiency and scope of application, have strong environmental adaptability, and overcome poor compatibility.

Inactive Publication Date: 2019-06-14
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although great progress has been made in the research on harvesting environmental energy by energy harvesters, there are still shortcomings such as low output power and narrow application range, which make it difficult to meet the long-term power supply requirements of low-power electronic products or sensors.
The structure of the energy harvester is too large to be carried around

Method used

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  • Photovoltaic-piezoelectric-electromagnetic compound type energy harvester
  • Photovoltaic-piezoelectric-electromagnetic compound type energy harvester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0042] see figure 1 , The energy harvester provided by this application includes: a housing 1, a photoelectric piezoelectric material 2, a ring coil 3, a high-frequency substrate beam 4, a magnet 5, a coil positive wire 6, a coil negative wire 7, a low-frequency beam 8, and an energy harvesting control circuit 9. The positive lead wire 10 of the photopiezoelectric film, the negative lead wire 11 of the photopiezoelectric film, and the bolt 12.

[0043] In this embodiment, the positive lead wire 10 of the photo-piezoelectric sheet and the negative lead wire 11 of the photo-piezoelectric sheet are positive and negative electrodes that generate current within one vibration cycle. The vibration source is reciprocating vibration, and the generated current is alternating current, and with the change of the vibration direction, the positive and negative poles of the current change.

[0044] The photo-piezoelectric material 2 is attached to the upper surface of the high-frequency mat...

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Abstract

The invention discloses a photovoltaic-piezoelectric-electromagnetic compound type energy harvester. The photovoltaic-piezoelectric-electromagnetic compound type energy harvester comprises a magnet, alow-frequency driving beam and a high-frequency power generation beam, wherein the low-frequency driving beam is used for effectively absorbing vibration energy in a low-frequency vibration environment, and the vibration energy is transmitted to the high-frequency power generation beam which is positioned on one side of the low-frequency driving beam through a collision manner; a photopiezoelectric material for converting vibration into electric energy is arranged on the high-frequency power generation beam; the magnet is fixed to the low-frequency driving beam and faces the high-frequency power generation beam; and the magnet is used for cutting a magnetic induction line under vibratory triggering produced in a surrounding environment so as to produce electric energy and transmitting vibrational excitation. The energy harvester is suitable for being used in illumination and / or vibration environments, and the conversion efficiency and an application range of the energy harvester are improved.

Description

technical field [0001] The application relates to a photovoltaic-piezoelectric-electromagnetic composite energy harvester, which belongs to the technical field of new energy and power generation. Background technique [0002] Commonly used power sources for small electronic devices are generally lithium batteries or lead-acid batteries. The problem that this type of chemical battery cannot be replaced in some environments limits its application scenarios. Therefore, various types of energy in the environment are stored through conversion devices for low power consumption The sensor power supply is a hot research direction. [0003] Existing energy harvesters include: a piezoelectric energy harvester that converts vibration energy into electrical energy through the piezoelectric effect, an electromagnetic energy harvester that converts vibration energy into electrical energy through the principle of electromagnetic induction, and a vibration energy harvester that converts vib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/18H02S10/10H02K35/02
CPCY02E10/50
Inventor 张希洋高世桥金磊刘海鹏牛少华郭胜凯
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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