Nacelle shell structure, lock labyrinth and wind turbine

A lock-labyrinth for positioning between a rotating part with a rotation axis and a stationary part of a wind turbine, comprising:

• a shield structure;
• and
• a support structure,
• wherein the shield structure is located radially outward of the support structure and protruding the support structure in an axial direction,
• wherein the shield structure comprises a nose protruding radially inward and being located at an axial position where the support structure forms a U shaped water-tight channel that opens radially outwards of the support structure;
• and
• further comprising a gap between the rotating part and the stationary part, wherein water or dirt entering the gap is led into the water-tight channel by the nose.

A wind turbine, comprising:

• a main structure:
• a nacelle shell structure, wherein the nacelle structure is directly connected to the main structure at only three static points, the nacelle shell structure comprising;
• a curved top sub-structure;
• a curved first side sub-structure connected to the curved top sub-structure;
• a curved second side sub-structure connected to the curved top substructure and to the curved first side sub-structure, wherein the curved top sub-structure, the curved first side sub-structure and the curved second side sub-structure form a hollow cylinder;
• an end sub-structure connected to the curved top sub-structure, the curved first side sub-structure and the curved second side sub-structure, wherein the end sub-structure closes one end of the hollow cylinder;
• a lock-labyrinth for positioning between a rotating part with a rotation axis and a stationary part of the wind turbine, comprising;
• a shield structure;
• a support structure;
• wherein the shield structure is located radially outward of the support structure and protruding the support structure in an axial direction, and
• wherein the shield structure comprises a nose protruding radially inward and being located at an axial position where the support structure forms a U shaped water-tight channel that opens radially outwards of the support structure;
• and
• further comprising a gap between the rotating part and the stationary part, wherein water or dirt entering the gap is led into the water-tight channel by the nose.