Rotor blade for a wind turbine

Abstract

A rotor blade for a wind turbine has an elongate blade base body with a plurality of connecting elements. Each connecting element comprises at least one axially extending connecting portion adapted to be connected with corresponding connecting portions of a rotor hub of the wind turbine. The connecting elements are connected in circumferential direction so as to build a closed ring-shape.

1 . A rotor blade for a wind turbine, comprising:
 an elongate blade base body with a plurality of connecting elements, each of the plurality of connecting elements comprising an axially extending connecting portion configured to be connected with corresponding connecting portions of a rotor hub of a wind turbine,   wherein the plurality of connecting elements are connected in circumferential arrangement to form a closed ring-shape.   
     
     
         2 . The rotor blade according to  claim 1 , wherein each of the plurality of connecting elements have a ring-segment-like shape. 
     
     
         3 . The rotor blade according to  claim 1 , wherein each of the plurality of connecting elements comprises a circumferentially extending connector configured to interconnect the respective connecting element with a mating circumferentially extending connector of the adjacent connecting element. 
     
     
         4 . The rotor blade according to  claim 1 , wherein each of the plurality of connecting elements comprises a radially extending connector configured to connecting the respective connecting element with a corresponding radially extending connector of a ring member having a radially outer and/or inner position with respect to the connecting elements. 
     
     
         5 . The rotor blade according to  claim 3 , wherein the circumferentially extending connector and/or radially extending connector is built as a form closure element. 
     
     
         6 . The rotor blade according to  claim 5 , wherein the form closure element is built as a protrusion or a corresponding recess. 
     
     
         7 . The rotor blade according to  claim 6 , wherein the protrusion is a dovetail-like protrusion or the recess is a dovetail-like recess. 
     
     
         8 . The rotor blade according to  claim 6 , wherein the circumferentially extending connector is adjacently disposed to the radially outer or inner border of a respective connecting element with respect to the centre axis of the rotor blade. 
     
     
         9 . The rotor blade according to  claim 1 , wherein a connecting element has a symmetrical or an asymmetrical shape with respect to its circumferentially aligned longitudinal axis. 
     
     
         10 . A wind turbine comprising a rotor hub having at least one rotor blade according to  claim 1  attached thereto.