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Umbrella type folding-unfolding wind turbine blade

A wind turbine and blade technology, which is applied to wind turbines, wind turbines, and wind turbines at right angles to the wind direction, etc., can solve blade damage, unstable wind turbine output power, generator overload, etc. problems, to achieve the effect of reducing the starting wind speed, avoiding blade damage, and improving the utilization rate

Inactive Publication Date: 2018-07-06
王一轩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because wind energy has the characteristics of arbitrary changes in wind force and wind direction, the output power of wind turbines is unstable, and in extreme weather such as strong winds and typhoons, generator overload or blade damage may occur.

Method used

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  • Umbrella type folding-unfolding wind turbine blade
  • Umbrella type folding-unfolding wind turbine blade
  • Umbrella type folding-unfolding wind turbine blade

Examples

Experimental program
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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] Such as Figure 4a , Figure 4b , Figure 5a and Figure 5b As shown, an umbrella-shaped retractable wind turbine blade includes a fixed blade 1 , a movable blade a2 and a movable blade b3 , an adjusting rod 4 and a rotating shaft 5 . Figure 1a and Figure 1b are the front view and the left view of the fixed blade 1, respectively, such as Figure 1a and Figure 1b As shown, the inside of the fixed vane 1 is a hollow structure. Figure 2a and Figure 2b are respectively the front view and the left view of the movable blade a2, Figure 3a and Figure 3b These are the front view and the left side view of the movable blade b3 respectively, the movable blade a2 and the movable blade b3 can be put into the hollow structure inside the above-mentioned fixed blade 1 . The vertices of the fixed vane 1 , the movable vane a2 and the movable...

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Abstract

The invention discloses an umbrella type folding-unfolding wind turbine blade which comprises a fixed blade body. The umbrella type folding-unfolding wind turbine blade is characterized by further comprising two movable blade bodies, an adjusting rod and a rotating shaft. The interior of the fixed blade body is of a hollow structure, the two movable blade bodies are installed inside the fixed blade body, the top points of the fixed blade body and the two movable blade bodies are hinged to the rotating shaft, the adjusting rod connected to the movable blade bodies is pulled to control the movable blade bodies to be unfolded and folded, and therefore the purpose of changing the blade area is achieved. The blade is of a left-right symmetrical structure, and the adjusting rod is hinged to themovable blade bodies. Umbrella type unfolding and folding of the blade can be achieved, and therefore the blade area is changed; and meanwhile, the adjustable area proportion of the blade is large, and therefore the umbrella type folding-unfolding wind turbine blade can adapt to wider-range wind speed changes.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to an umbrella-shaped retractable wind power generator blade. Background technique [0002] With the depletion of fossil energy and the gradual improvement of people's awareness of environmental protection, it is urgent to find other clean and effective power generation methods to replace traditional coal-fired power generation. countries' attention. According to statistics, in 2016, China's newly installed wind power capacity was 23.37 million kilowatts, and the cumulative installed capacity reached 169 million kilowatts, which shows the rapid development trend of wind power technology. However, because wind energy has the characteristics of arbitrary changes in wind force and wind direction, the output power of wind turbines is unstable, and when encountering extreme weather such as strong winds and typhoons, generator overload or blade damage may occur....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/06F03D7/04F03D3/06F03D7/06
CPCF03D1/0675F03D3/062F03D7/0236F03D7/06F05B2270/32Y02E10/72Y02E10/74
Inventor 王一轩
Owner 王一轩
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