Wind power blade and wind generating set

CN120667305APending Publication Date: 2025-09-19YUANJIAN WIND POWER JIANGYINENVISION ENERGY CO LTD
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Patent Information

Application Number
CN202510918238.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-03
Publication Date
2025-09-19

AI Technical Summary

Technical Problem

The blades of wind turbines are the primary target of lightning strikes. As the tower height and blade length increase, the probability of lightning strikes increases. Existing lightning protection measures increase production difficulty and lack reliability.

Method used

The first and second lightning protection layers are laid on the surface of the blade body to form a Faraday cage. The blade tip lightning receptor acts as a conductive component to attract lightning. The alignment of the connectors and down conductors is simplified, and redundant paths are added to reduce production difficulty and improve reliability.

Benefits of technology

It effectively reduces the possibility of lightning damage to wind turbine blades, simplifies the production process, and enhances the reliability of the lightning protection system and the mechanical properties of wind turbine blades.

✦ Generated by Eureka AI based on patent content.

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    Figure CN120667305A_ABST
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Abstract

The invention relates to a wind power blade and a wind generating set. The wind power blade comprises a blade main body, wherein the blade main body is encircled to form a cavity; the structural element is arranged on the blade main body; a first lightning protection layer between the pressure side and the structural element; a second lightning protection layer between the suction side and the structural element; the blade tip lightning arrester is arranged on the blade tip; wherein two first connecting pieces are arranged on the inner wall face of the cavity, the first lightning protection layer is electrically connected with one first connecting piece through a first connecting assembly, and the second lightning protection layer is electrically connected with the other first connecting piece through a second connecting assembly. The two first connecting pieces are electrically connected with the first down lead through the second down lead, and the first down lead is electrically connected with the blade tip lightning arrester. According to the technical scheme provided by the invention, the production difficulty can be reduced while the possibility of being damaged by lightning stroke can be reduced.
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