Micro wind power generation blade and generator using power generation blade

A technology for wind power generation blades and wind turbines, which is applied to wind turbines, wind turbine combinations, wind turbines at right angles to the wind direction, etc. Energy conversion efficiency, vibration and noise reduction, and the effect of improving the use environment

Active Publication Date: 2019-02-01
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These power generation devices have a large starting torque, which puts forward higher requirements for the applicable occasions of the power generation device, such as coastal areas with strong winds, mountainous areas with stable winds, etc. In order to achieve the required power generation capacity, the blade structure of the wind power generation device The size is large, which puts forward higher requirements for the forming, transportation and installation of the blades, and greatly increases the manufacturing cost, which makes this kind of power generation device not suitable for installation and use in modern cities; in addition, for the current market Some breeze power generation devices exist, such as light wind power generation devices for street lamps, etc. These blades are mostly spiral blades, straight blades, etc. However, this kind of blade has no rectifying parts, and during its operation, the air is prone to unstable when it flows through the blade. Eddy currents, resulting in high vibration and noise during operation, affecting the urban living environment, and low power generation efficiency
These limit the scope of use of wind power generation devices and restrict the development of wind power generation towards miniaturization

Method used

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  • Micro wind power generation blade and generator using power generation blade
  • Micro wind power generation blade and generator using power generation blade
  • Micro wind power generation blade and generator using power generation blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 , 2 As shown in , 3, a wind power generator includes a power generating device 1, a base 2, a rotating shaft 3, a generating blade and a quick coupling assembly 5, one end of the rotating shaft 3 is connected with the generating device 1, and the other end is connected with the bottom of the base 2 , the top of the base 2 is connected to the bottom of the blade body 4 through a quick coupling assembly.

Embodiment 2

[0035] On the basis of Example 1, such as figure 2 , 4 As shown in . The sides are respectively provided with rectifying grids 42 parallel to the horizontal direction, and one or more sub-blades 41 are symmetrically provided with concave notches 6 in the center of both sides, and the rectifying grids 42 on the upper and lower sides of the sub-blades 41 are relatively provided with guides for guiding wind force. The air strip 43 forms an S-shaped air guide channel between the adjacent upper and lower rectifying grids 42 .

Embodiment 3

[0037] On the basis of Example 1, such as figure 1 , 4 As shown in . The sides are respectively provided with rectifying grids 42 parallel to the horizontal direction, and the sub-blades 41 at the bottom of the blade body 4 are symmetrically provided with concave notches 6 in the center of both sides. The air guiding strip 43 of the wind force forms an S-shaped air guiding channel between the adjacent upper and lower rectifying grids 42 .

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Abstract

The invention belongs to the field of wind power generation, and in particular, relates to a micro wind power generation blade. The micro wind power generation blade comprises a blade body; and one ormore concave notches are formed in two sides of the blade body. The micro wind power generation blade has the following beneficial effects: one or more concave notches are symmetrically arranged on two sides of the blade body; and in the operation process of the wind power generation blade, after wind power flows through the blade, due to existence of the concave notches, the inherent frequency of the blade is disordered, the formed flowing is more stable, the eddy current area is smaller, the vibration noise is greatly lowered, and the use environment is greatly improved.

Description

technical field [0001] The invention belongs to the field of wind power generation, and in particular relates to a miniature wind power generation blade and a generator using the power generation blade. Background technique [0002] Energy is the basis and important condition for the progress and development of human society and economy. For a long time, the energy system based on fossil fuels such as coal, oil, and natural gas has promoted the development of human society. However, the above-mentioned energy sources are non-renewable energy sources. Long-term development has caused energy exhaustion, which seriously restricts the further development of human beings. Wind power generation is a green, renewable and clean energy. It is a device that converts the kinetic energy of the wind into mechanical kinetic energy, and then converts the mechanical energy into electrical kinetic energy. However, the traditional horizontal axis wind power generation device has high require...

Claims

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Application Information

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IPC IPC(8): F03D3/00F03D3/06F03D9/25F03D80/00
CPCF03D3/005F03D3/06F03D9/25F03D80/00F05B2240/30Y02E10/74
Inventor燕浩李强陈亮张羽陶泽源
OwnerHEFEI UNIV OF TECH