Floating body and floating platform including the same

Abstract

The photovoltaic device includes a base, a photovoltaic power panel disposed on the base to produce electric power using sunlight, and a reflector formed on the upper surface of the base, being provided to accommodate water, and having a receiving groove defined by a bottom and a sidewall extending from the bottom such that the sunlight is refracted according to a difference in refractive index between the air outside the receiving groove and the water accommodated in the receiving groove, and to be reflected toward a lower surface of the photovoltaic panel through the bottom or sidewall. Accordingly, the photovoltaic device may effectively collect sunlight from both sides of the photovoltaic panel to improve power generation efficiency.

What is claimed is: 
     
         1 . A floating body comprising:
 a frame extending a first direction;   a floating part surrounding a portion of the frame;   an anti-rotation pin interposed between the frame and the floating part, and being configured to prevent the floating part from rotating along a periphery of the frame;   a resin coating portion surrounding the floating part; and   a cover film entirely surrounding the resin coating portion,   wherein the floating part includes a pair of end portions each having a vertical cross-sectional area that becomes smaller as it goes away from a center portion thereof to decrease a resistance to water.   
     
     
         2 . The floating body of  claim 1 , wherein each of the end portions is a cone-shape. 
     
     
         3 . The floating body of  claim 1 , wherein the anti-rotation pin radially extends from a circumference of the frame to penetrate through the floating part. 
     
     
         4 . The floating body of  claim 1 , wherein the floating part includes a foamed material. 
     
     
         5 . The floating body of  claim 1 , wherein the floating part includes a plurality of partition walls spaced apart from each other to be internally air-injected. 
     
     
         6 . The floating body of  claim 1 , wherein the floating part includes a groove surrounding a circumference thereof, and being configured to receive a fixing part for fixing an upper structure thereto. 
     
     
         7 . A floating platform comprising:
 a plurality of floating bodies of  claim 1 , respectively; and   a stage disposed over the floating bodies,   wherein a plurality of frames is connected to each other in a matrix type.