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Blade structure of wind wheel for vertical shaft wind-driven generator

A technology of blade structure and vertical axis, which is applied in the field of blade structure of vertical axis wind turbine wind turbine, can solve the problem that the wind rotor has not been completely solved, and achieve the effect of light weight, strong wind resistance and high efficiency

Active Publication Date: 2013-04-24
NAT WIND ENERGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, many problems of the above-mentioned horizontal axis wind turbine rotor have not been completely solved

Method used

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  • Blade structure of wind wheel for vertical shaft wind-driven generator
  • Blade structure of wind wheel for vertical shaft wind-driven generator
  • Blade structure of wind wheel for vertical shaft wind-driven generator

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Embodiment Construction

[0033] Such as figure 1 As shown, the blade of the vertical axis wind turbine rotor provided by the present invention includes a skeleton forming the shape of the blade and a skin (not shown) fixed outside the skeleton, and the shape of the blade is a vertical columnar body , its horizontal section is the cross-sectional shape of the aircraft wing, that is, relative to the rotation axis 03 of the wind rotor (see Image 6 , 7 ), the outer surface of the blade 01 facing outward is a streamlined arc surface, and the smooth transition between the outer surface and the opposite inner surface forms a larger windward end, that is, the head of the blade and a smaller tail.

[0034] Relative to the vertical axis of the wind rotor shaft 03, the distance between the outer surface and the inner surface of the cylinder basically gradually decreases from the head to the tail; in the vertical direction of the blade, each horizontal The cross-sectional size and shape are the same.

[0035]...

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Abstract

A rotor blade of a vertical axis wind turbine provided by the present invention includes a skeleton forming the blade shape and a skin fixed on the outside of the skeleton, and the blade is in the form of a vertical cylindrical object whose horizontal cross-section is in the sectional form of an airplane wing, in other words, the outward facing outer side surface of blade is a streamlined cambered surface, and there is a smooth transition between this outer side surface and its corresponding inner side surface to form a relatively larger windward end, i.e. the head end and the smaller tail end of the blade. Thanks to its streamlined form and special skeleton structure, the blade provided by the present invention has such advantages as light weight, high strength and rigidity, easy assembly and fabrication and high profiling accuracy.

Description

technical field [0001] The invention belongs to the technical field of wind power generators, and provides a component of a vertical axis wind power generator, in particular a blade structure of a wind wheel of a vertical axis wind power generator. Background technique [0002] In the prior art, most of the wind power generators are horizontal shaft generators, the main shaft is set horizontally, and the wind wheel is set on it. , It is easy to deform and generate resonance under wind force, and it is easy to break under wind pressure, which has the problem of poor wind resistance, and the resonance during rotation can cause the problem of low power generation. Due to the above-mentioned problems of this type of wind rotor blades, and the current wind turbines are developing toward large-scale and high-power, with the increase of the diameter of the wind rotor, the damage rate of the blades is higher and the service life is shorter. The development of power generation has a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D3/06
CPCF05B2250/231F03D3/062F05B2240/214Y02E10/721Y02E10/74Y02E10/72Y02P70/50
Inventor 蒋大龙盛明凡许金泉
Owner NAT WIND ENERGY
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