Rotary piezoelectric power generation charger driven by wind force

A piezoelectric power generation and rotary technology, which is applied in the direction of wind power generation, wind engine, wind motor combination, etc., can solve the problems of reducing the service life of the device, piezoelectric crystal brittleness, etc., and achieves easy integration, high circuit stability, and improved Effect of fatigue wear resistance

CN103427467BInactive Publication Date: 2015-04-08DALIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2015-04-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention a rotary piezoelectric power generation charger driven by wind force, belongs to the technical field of new energy, and relates to a rotary piezoelectric power generation charger driven by wind force. The rotary piezoelectric power generation charger is used for collecting wind energy in environments and converting the wind energy into electric energy. The rotary piezoelectric power generation charger comprises a rotary piezoelectric power generation assembly, an interface processing circuit and a rechargeable battery. Piezoelectric crystal layers and metal neutral layers of the rotary piezoelectric power generation assembly form piezoelectric double-crystal beams, and the piezoelectric double-crystal beams are distributed around a spindle to form a circumferential array and are fixed onto a body of a motor by the aid of fixtures. The interface processing circuit comprises a rectifier circuit, a voltage regulating circuit and a battery charging circuit. The rotary piezoelectric power generation charger has the advantages that the piezoelectric power generation charger is simple in structure and low in manufacturing cost, and is clean and pollution-free; the quantity of peripheral electronic components required by the interface processing circuit is low, a design principle of low power consumption is met, and the interface processing circuit can be integrated easily, has an over-charge and over-discharge protection function and is high in stability; the piezoelectric power generation charger is applicable to low-speed wind energy and can be used with sensor nodes.
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Description

technical field

[0001] The invention belongs to the technical field of new energy, and relates to a wind-driven rotary piezoelectric generator charger for collecting wind energy in the environment and converting it into electric energy. Background technique

[0002] At present, the seriousness of the energy crisis is becoming increasingly prominent, which has caused great inconvenience to people's daily life. New energy technology has become an effective means to alleviate the energy crisis and has attracted people's attention. People have a long history of utilizing wind energy, and the main means of utilization is to build large-scale wind power stations, and most of the utilized wind energy is wind energy in high-speed conditions, while the utilization of wind energy in low-speed conditions is often ignored by people. Wireless sensor network technology has important application value in environmental monitoring, building safety monitoring, military and so on. At present,...

Examples

Embodiment Construction

[0010] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings and technical solutions. A wind-driven rotary piezoelectric generator charger consists of three parts: a rotary piezoelectric transducer, an interface processing circuit and a rechargeable battery. The overall working process of the present invention is as follows: the rotary piezoelectric transducer converts wind energy into electrical energy through the piezoelectric effect of piezoelectric crystals, and the piezoelectric crystals are vibrated to generate AC power, and the AC power is converted into DC power after passing through a full-bridge rectifier circuit , because the magnitude of the wind is different, the amplitude of the DC power supply will be different, and the DC power supply with different amplitudes can be input into the voltage regulation circuit to obtain a DC power supply with a certain amplitude. The lithium-ion ...