Patent ID: 9011096
Filing Date: 2015-04-21
Classification: F03D,F05B,Y02E

Abstract:
1. A vertical axis wind turbine blade comprising: a blade frame having a plurality of assembly plates disposed at regular intervals; and a plurality of blade bodies each of which are configured to pivot between two adjacent assembly plates and having a rib and a blade surface connected to the rib; wherein each rib of each blade body and each assembly plate of the blade frame are respectively arranged with a pivot hole correspondingly; a pivot rod is passed through the pivot holes of each rib of each blade body and each assembly plate of the blade frame; a stopper is arranged between each assembly plate and each blade body while two sides of each assembly plate are respectively an upwind surface and a downwind surface; each stopper is located on one side of each blade body corresponding to the downwind surface of each assembly plate; and wherein a first buffer part is disposed on a first blade body; and a second buffer part is disposed on a second blade body adjacent to said first blade body and said second buffer part is configured to correspondingly contact said first buffer part.