Title:
風車翼
Document Type and Number:
Japanese Patent JP5546624
Kind Code:
B2
Abstract:
A wind turbine blade 1 having a lightning protection function is provided with an outer shell 11, a spar arranged in a space inside the outer shell and extending in a longitudinal direction of the blade, a spar cap 16 which is formed by a carbon-fiber plastic laminated member 161 disposed on a blade root side 1A and a glass-fiber plastic laminated member 162 disposed on a blade tip side 1B that are connected together, the spar cap 16 supporting the spar to the outer shell 11, and a lightning protection unit. The lightning protection unit is provided with a receptor 21, 23 for receiving lightning which is provided in the outer shell 11 on a side where the glass-fiber plastic laminated member 162 is arranged, a down conductor which directs lightning current received by the receptor 21, 23 into the ground or the water, and a conductive metal member 41 which covers the outer shell on a side where the carbon fiber plastic laminated member 162 is arranged.
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Inventors:
Takao Kuroiwa
Hideyasu Fujioka
Hideyasu Fujioka
Application Number:
JP2012507511A
Publication Date:
July 09, 2014
Filing Date:
December 09, 2011
Export Citation:
Assignee:
Mitsubishi Heavy Industries, Ltd.
International Classes:
F03D11/00
Attorney, Agent or Firm:
誠真 IP patent business corporation