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Blade, wind power generator and blade manufacturing method

A manufacturing method and blade technology, applied in the fields of blade, wind turbine and blade manufacturing, can solve problems such as poor aerodynamic performance of blades, and achieve the effect of improving aerodynamic performance of blades and solving the reduction of aerodynamic performance of blades

Active Publication Date: 2019-01-29
JIANGSU GOLDWIND SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Embodiments of the present invention provide a blade, a wind power generator and a blade manufacturing method to solve the problem of poor aerodynamic performance of blades produced in the prior art

Method used

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  • Blade, wind power generator and blade manufacturing method
  • Blade, wind power generator and blade manufacturing method
  • Blade, wind power generator and blade manufacturing method

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Embodiment Construction

[0032] The blade, blade manufacturing method and wind power generator according to the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In this embodiment, the first shell and the second shell refer to two parts constituting the blade.

[0033] Such as image 3 As shown, according to the embodiment of the present invention, the blade has a first shell 20 and a second shell 30, and the junction of the first shell 20 and the second shell 30 forms a dividing line 11, along the length direction of the blade, At least a part of the parting line 11 is located on one side of the leading edge 40 of the blade. Since at least a part of the dividing line 11 is located on one side of the blade leading edge 40 (either the suction side or the pressure side), at least a part of the blade leading edge 40 is not divided by the dividing line 11 and is a complete In this way, the problem of unevenness of the leading edge 40 of ...

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Abstract

The invention provides a blade, a wind driven generator and a blade manufacturing method. The blade has a first shell and a second shell, wherein the bonding place between the first shell and the second shell is a cutting line; and at least one part of the cutting line is positioned at one side of the front edge of the blade in the length direction of the blade. At least one part of the front edge of the blade is not cut to prevent the problem of weak pneumatic performance of the blade caused by machining errors.

Description

technical field [0001] The invention relates to the field of wind power generation equipment, in particular to a blade, a wind power generator and a blade manufacturing method. Background technique [0002] Explanation of terms for blades of wind turbines: [0003] Blade airfoil: refers to the profile of the cross section of the blade; [0004] Blade leading edge: refers to the front part of the blade in the direction of rotation. [0005] Leading edge apex: Refers to the most forward point of the leading edge of the blade. [0006] Suction side: refers to the airfoil side surface with higher speed and lower static pressure when air flows through. [0007] Pressure surface: refers to the airfoil side surface with low velocity and high static pressure when air flows through. [0008] Partition line: refers to the line where the upper and lower parts of the blade are joined, and also refers to the line used to separate the upper and lower molds during the actual manufactur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D1/06F03D9/25B29C70/34B29C70/54
CPCY02E10/72Y02P70/50
Inventor 李小明
Owner JIANGSU GOLDWIND SCI & TECH CO LTD
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