Wind turbine rotor blade having a heating element and a method of making the same
AssigneeNordex Energy GmbH
InventorsAstrid Loewe, Oskar Renschler, Philipp Rindt
Life of this patent
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Abstract
The invention relates to a wind turbine rotor blade having a blade root, a blade tip, two interconnected rotor blade half shells, which include a fiber-reinforced plastics material, and an electrical heating element, which is arranged on an outer side of the rotor blade and has a blade root end and a blade tip end, wherein the blade tip end is connected via an electrical line leading to the blade root and at least a first segment of the electrical line, which is arranged on an inner side of one of the rotor blade half shells, is made of a carbon fiber material. Further, the present invention relates to a method for making a wind turbine rotor blade having an electrical heating element.
Claims11
A wind turbine rotor blade comprising:
- a first and a second rotor blade half shell each having an inner side and an outer side and which include a fiber reinforced plastics material;
- said first and said second rotor blade half shells being mutually joined to conjointly define an inner side and an outer side of the rotor blade and to conjointly define a blade root and a blade tip;
- an electrical heating element arranged on one of the outer sides of the rotor blade and having a blade root end and a blade tip end;
- an electrical line leading to said blade root;
- said blade tip end of said electrical heating element being connected via said electrical line;
- said electrical line having a first segment arranged on said inner side of one of said rotor blade half shells and said first segment being formed of carbon fiber;
- said electrical line having a second segment arranged on said outer side of the rotor blade;
- said second segment of said electrical line being made of a carbon fiber material;
- said second segment having a region which contacts said blade tip end of said heating element;
- and,
- wherein said heating element has an under side and a top side;
- and, said second segment has a region which is guided around said heating element so as to contact said under side and said top side of said heating element.
A wind turbine rotor blade comprising:
- a first and a second rotor blade half shell each having an inner side and an outer side and which include a fiber reinforced plastics material;
- said first and said second rotor blade half shells being mutually joined to conjointly define an inner side and an outer side of the rotor blade and to conjointly define a blade root and a blade tip;
- an electrical heating element arranged on one of the outer sides of the rotor blade and having a blade root end and a blade tip end;
- an electrical line leading to said blade root;
- said blade tip end of said electrical heating element being connected via said electrical line;
- said electrical line having a first segment arranged on said inner side of one of said rotor blade half shells and said first segment being formed of carbon fiber;
- said electrical line having a second segment arranged on said outer side of the rotor blade;
- said second segment of said electrical line being made of a carbon fiber material;
- said second segment having a region which contacts said blade tip end of said heating element;
- said first segment and said second segment of said electrical line being formed by a continuous strip of material which runs from said inner side of the rotor blade to said outer side of said rotor blade;
- and,
- wherein said second segment is redirected over an edge of one of said first and said second rotor blade half shells.
Dependencies are inferred from the claim text.