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Frequency-modulable rotary piezoelectric power generation device

A piezoelectric power generation, rotary technology, applied in the direction of generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, electrical components, etc. The bandwidth is not adjustable, the working frequency bandwidth is not adjustable, etc., to achieve the effect of expanding the scope of applications and occasions

Inactive Publication Date: 2013-11-27
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The operating frequency bandwidth of these two rotary piezoelectric generators is not adjustable, and the application occasions are limited
On the whole, the main problem in the research of rotary piezoelectric generators is that the operating frequency bandwidth of the generator is not adjustable, and its application occasions and conditions are limited.

Method used

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  • Frequency-modulable rotary piezoelectric power generation device
  • Frequency-modulable rotary piezoelectric power generation device
  • Frequency-modulable rotary piezoelectric power generation device

Examples

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Embodiment Construction

[0017] The specific implementation manner of the present invention will be described in detail in conjunction with the accompanying drawings and technical solutions. The invention is a frequency-adjustable rotary piezoelectric generator, which is composed of a frequency-regulating component and an energy conversion component. Utilizing the frequency modulation component to adjust the operating frequency bandwidth of the generator broadens the application range and occasions of the present invention.

[0018] combined with figure 1 And attached figure 2 Explain the working principle of type Ⅰ adjustable frequency rotary piezoelectric generator. When the external rotation excitation is input from the right end of the shaft 14, the shaft 14 drives the drive wheel 12 to rotate together, and the magnetic field generated by the permanent magnets 10 evenly distributed around the drive wheel 12 at the free end of the piezoelectric cantilever beam 13 changes continuously. The perma...

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Abstract

The invention relates to a frequency-modulable rotary piezoelectric power generation device, which belongs to the technical field of new energy, and is suitable for collecting rotary mechanical energy with wide frequency in the environment. The power generation device is composed of a frequency modulation component and an energy conversion component, wherein the frequency modulation component can be a first-stage frequency modulation component or a second-stage frequency modulation component or a frequency modulation component commonly functioning by combined action of the first-stage frequency modulation component and the second-stage frequency modulation component. The first-stage frequency modulation component comprises a pedestal, a first-stage frequency modulation bolt, upper and lower guide rods, a left bracket and a disk. The second-stage frequency modulation component comprises a second-stage frequency modulation bolt, a sliding block, a positioning block and a positioning block screw. The frequency-modulable rotary piezoelectric power generation device related by the invention has 4 structural forms. The Frequency-modulable rotary piezoelectric power generation device modulates the working frequency bandwidth of a rotary piezoelectric power generator by using the frequency modulation component, and broadens the application range and occasions of the rotary piezoelectric power generator.

Description

technical field [0001] The invention belongs to the technical field of new energy, and relates to a frequency-adjustable rotary piezoelectric power generation device, which is suitable for collecting rotational mechanical energy with a wide frequency in the environment. Background technique [0002] The vibrations in the environment are characterized by low frequency and random changes, and it is difficult for traditional piezoelectric technology to efficiently capture these energies. The main reason is: the common piezoelectric transduction structure such as piezoelectric cantilever beam, its external excitation frequency must reach near its resonance frequency to efficiently generate electric energy, usually the resonance frequency of piezoelectric cantilever beam is higher than the vibration of the environment The frequency is much higher and the bandwidth is narrower, but the vibration frequency distribution in the environment is wider, so the traditional piezoelectric t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/18
Inventor 褚金奎韩冰峰霍新新姚斐
Owner DALIAN UNIV OF TECH
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