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Wind power piezoelectric power generation device with large speed increasing ratio

A technology of piezoelectric power generation and speed-up ratio, which is applied in the direction of wind power generation, wind engine, wind motor combination, etc., to achieve the effect of increasing the excitation frequency and meeting the demand for electric energy output

Active Publication Date: 2021-09-03
HANGZHOU DIANZI UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the deficiencies of the existing wind piezoelectric power generation device, and provide a wind power piezoelectric power generation device with a large speed-up ratio that can be started at low wind speeds, with adjustable speed and less mechanical noise.

Method used

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  • Wind power piezoelectric power generation device with large speed increasing ratio
  • Wind power piezoelectric power generation device with large speed increasing ratio
  • Wind power piezoelectric power generation device with large speed increasing ratio

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Embodiment Construction

[0044]The present invention will be further described below in conjunction with the accompanying drawings and specific implementation.

[0045] Such as figure 1 As shown, a wind piezoelectric power generation device with a large speed-up ratio includes a wind rotor blade 1, an input shaft 2, a speed-up mechanism 3, an output shaft 4, a cylindrical cam 14, a linear motion cam 13, a guide rail 8, a support frame and a press Electric power generation assembly; the wind rotor blade 1 is fixed on the input shaft 2, rotates under the wind force, and transmits the power through the input shaft; the input shaft 2 and the gearbox housing 9 form a rotating pair; the gearbox housing 9 is fixed on the outside The cylinder 5 and the outer cylinder are fixed on the bottom plate 15; the speed-up mechanism 3 is placed in the casing 9 of the speed-up box. Such as figure 2 As shown, the speed-up mechanism 3 includes a speed-up mechanism inner shell 301, an upper support frame 302, an interna...

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Abstract

The invention discloses a wind power piezoelectric power generation device with a large speed increasing ratio. The wind power piezoelectric power generation device comprises wind wheel blades, an input shaft, a speed increasing mechanism, an output shaft, a cylindrical cam, a linear motion cam and piezoelectric power generation assemblies; the input shaft and the output shaft transmit power through the speed increasing mechanism; and the output shaft drives the linear motion cam through the cylindrical cam, the linear motion cam then drives guide rods of the piezoelectric power generation assemblies to achieve vertical reciprocating motion, and therefore piezoelectric vibrators on the guide rods deform to generate electric energy. According to the wind power piezoelectric power generation device, speed increasing transmission with the large transmission ratio is formed through the speed increasing mechanism, the excitation frequency is effectively improved, and high electric energy can be generated under the condition that wind power is low; deformation of the piezoelectric vibrators cannot generate high mechanical noise; and the arrangement number of the piezoelectric vibrators on the guide rods can be changed only by changing notches in the guide rods and the number of access ports of the piezoelectric vibrators on a supporting frame, the number of the piezoelectric power generation assemblies comprising the guide rods and the piezoelectric vibrators can be set according to needs, and the electric energy output requirement is met.

Description

technical field [0001] The invention relates to a device for generating electricity by using wind force to drive a piezoelectric material, in particular to a wind-driven piezoelectric generating device with a large speed-up ratio. Background technique [0002] Energy sources such as solar energy, wind energy, vibration energy, and temperature difference energy exist widely in nature, and micro energy devices based on such clean energy have important application prospects. Vibration energy exists in various forms, and collecting vibration energy as micro-energy is an effective method for generating environmental energy. Among them, the piezoelectric vibration generator has become the focus of research in the field of vibration power generation at home and abroad due to its advantages of high energy conversion efficiency, simple structure, no electromagnetic interference, easy miniaturization of the overall structure, and easy integration. An important way of powering MEMS de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D15/00F03D9/25H02N2/18
CPCF03D15/00F03D9/25H02N2/185H02N2/186Y02E10/72
Inventor 李冰茹杨玉辉沈英韬吴俊涵
Owner HANGZHOU DIANZI UNIV
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