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Composite energy harvester

An energy harvester and composite technology, applied in the field of energy harvesters, can solve the problems of long-term power supply for sensors, narrow application range, and low output power, etc., so as to improve energy harvesting efficiency, increase external output power, and efficiently convert energy effect

Pending Publication Date: 2021-04-13
CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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 various low-power electronic products or sensors.

Method used

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  • Composite energy harvester

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Embodiment Construction

[0015] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0016] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner" and "outer" are based on those shown in the accompanying drawings. Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0017] Such as figure 1 as shown,

[0018] Technical scheme of the present invention is:

[0019] A composite energy harve...

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Abstract

The invention discloses a composite energy harvester, which belongs to the technical field of energy harvesters, and is characterized by at least comprising a shell with a cavity, a photoelectric material, a piezoelectric material, a cylindrical magnet, an annular coil and a base beam, wherein the photoelectric material is fixed to the upper surface of the shell, the two ends of the base beam are fixedly connected with the inner wall of the shell, the cylindrical magnet is arranged below the base beam, and the inner diameter of the annular coil is larger than the outer diameter of the magnet. the cylindrical magnet and the annular coil are coaxial; one of the cylindrical magnet and the annular coil is fixedly connected with the lower surface of the base beam, and the other one of the cylindrical magnet and the annular coil is fixedly connected with the shell; the piezoelectric material is fixed on the upper surface of the base beam; an electrode lead of the piezoelectric material is connected with a load or an energy collection device through a wire; and a lead terminal of the annular coil is connected with a load or an energy collection device through a lead. Mechanical vibration energy and solar energy are converted into electric energy to be stored, and power is supplied to low-power-consumption intelligent equipment or sensing nodes.

Description

technical field [0001] The invention belongs to the technical field of energy harvesters, in particular to a composite energy harvester. Background technique [0002] The power supply of commonly used small electronic devices is generally lithium battery or lead storage battery. This type of chemical battery cannot be replaced in some environments, which limits its application scenarios. The power supply of sensors that consume energy is a hot research direction, which includes piezoelectric energy harvesters that convert vibration energy into electrical energy through the piezoelectric effect, and electromagnetic energy harvesters that convert vibration energy into electrical energy through the principle of electromagnetic induction. An electrostatic energy harvester that converts vibration energy into electrical energy through the principle of variable capacitance, and a photovoltaic power generation device that converts light energy into electrical energy through the phot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/35H02K35/02H02N2/18
CPCH02J7/35H02N2/18H02K35/02
Inventor 高鹏张丽丽王赫王宇
Owner CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
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