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A vibration generator

A technology of vibration power generation and power generation unit, which is applied in the direction of electromechanical devices, generators/motors, electrical components, etc., can solve the problems of high working frequency band, complex structure, large volume, etc., and achieve the effect of improving efficiency and simple device design

Active Publication Date: 2019-09-06
GUANGDONG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of the vibration power generation device on the market is relatively complex, and the volume is large, which is contrary to the current design concept of miniaturization and wireless design of the device; and the working frequency band of this type of device is relatively high, and it is difficult to identify it in the case of small vibration, such as Stepping vibration, etc., so the application range is limited and the power generation efficiency is low

Method used

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  • A vibration generator

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Embodiment Construction

[0023] The core of this specific embodiment is to provide a vibration power generation device, which can simplify the vibration power generation device, improve power generation efficiency, and solve the current problems in this field.

[0024] Hereinafter, an embodiment will be described with reference to the drawings. In addition, the examples shown below do not limit the content of the invention described in the claims in any way. In addition, all the contents of the configurations shown in the following embodiments are not limited to be essential to the solutions of the invention described in the claims.

[0025] The vibration power generation device provided in this specific embodiment mainly includes a power generation part and a support part. Wherein, the generating part includes: top cover 1, upper permanent magnet 2, magnetostrictive body 4, lower permanent magnet 5; and top cover 1, upper permanent magnet 2, magnetostrictive body 4, lower permanent magnet 5 are from...

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Abstract

The invention discloses a vibration power generation device comprises a power generation part and a support part, wherein the power generation part comprises a top cover, an upper permanent magnet, a magnetostrictor and a lower permanent magnet which are sequentially laminated and fixed, a coil is wound around the magnetostrictor, and the support part comprises an elastic part and a base. During usage, pressure is applied to the top cover, so that the upper permanent magnet, the magnetostrictor, the coil and the lower permanent magnet downwards move together to cause change of the length of a magnetic path, the coil generates a changing magnetic field, and an induced electromotive force is generated in the coil according to a Faraday law of electromagnetic induction, namely electromagnetic power generation; and when the top cover is pressed, the base is extruded by the lower permanent magnet and is knocked, so that the magnetic path is closed, meanwhile, a generated counter-reacting force acts on the magnetostrictor, the changing magnetic field is generated in the coil according to an inverse magnetostriction effect, and the induced electromotive force is further generated, namely piezomagnetic power generation. The device is simple to design and comprises two power generation processes of electromagnetic power generation and piezomagnetic power generation, and the power generation efficiency is improved.

Description

technical field [0001] The invention relates to the field of power generation, more specifically, to a vibration power generation device. Background technique [0002] Electric energy is a common power source, especially in summer, with the increase of various household electrical equipment, the consumption of electric energy continues to soar. There are many kinds of electric energy generation, such as relying on solar energy, wind energy, geothermal energy, etc., but the utilization of such energy is affected by external environmental factors, and the scope of application is limited. Therefore, in recent years, vibration power generation that is not affected by environmental and other factors has gradually become a research hotspot. [0003] As far as the prior art is concerned, there are mainly four types of devices that generate electricity through vibration: piezoelectric, electrostatic, electromagnetic, and giant magnetostrictive. The structure of the vibration power...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K35/00H02N2/18
Inventor 江伟谷爱昱严柏平王亚文
Owner GUANGDONG UNIV OF TECH
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