Wind turbine rotor blade having an electric heating device

A wind turbine rotor blade comprising:

• a rotor blade body defining a longitudinal section and a heatable surface region extending over said longitudinal section;
• an electric heating device configured to heat said heatable surface region;
• said electric heating device having a blade-tip-side end, a blade-root-side end, a first profile-trailing-edge-side edge and a second profile-trailing-edge-side edge;
• a first outer electric conductor connected to said electric heating device along said first profile-trailing-edge-side edge;
• a second outer electric conductor connected to said electric heating device along said second profile-trailing-edge-side edge;
• the wind turbine rotor blade defining a longitudinal axis;
• said electric heating device being configured to be supplied with a heating current via said first outer electric conductor and said second outer electric conductor such that said heating current flows through said heating device in a direction substantially perpendicular to said longitudinal axis;
• at least one central electric conductor connected to said electric heating device at a spaced relationship to said first and second profile-trailing-edge-side edges so as to cause said electric heating device to be divided by said central electric conductor into at least two partial regions which extend over said longitudinal section and can be supplied with an electric heating current separately from one another via two of said first outer electric conductor, said second outer electric conductor and said at least one central electric conductor;
• said electric heating device including electrically conductive fiber bundles;
• said electrically conductive fiber bundles each being electrically connected to at least two of said first outer electric conductor, said second outer electric conductor and said at least one central electric conductor;
• said electrically conductive fiber bundles being electrically insulated from one another;
• at least one of said electrically conductive fiber bundles having a first end and a second end;
• said first end being connected to said first outer electric conductor;
• said second end being connected to said second outer electric conductor;
• and,
• said at least one of said electrically conductive fiber bundles having a central section intersecting said at least one central electric conductor and being connected to said at least one central electric conductor in an electrically conductive manner.