Ventilation system and method of controlling the same

Abstract

Provided are a ventilation system and a method of controlling the ventilation system. The ventilation system includes a duct for directing indoor air and light to an indoor space, a solar cell converting natural light traveling along the duct into an electric energy, a light source converting the electric energy generated by the solar cell into artificial light and emitting the artificial light to the indoor space, and a ventilation device connected to the duct.

1 . A ventilation system comprising: 
 a duct for directing outdoor air and light to an indoor space;    a solar cell converting natural light traveling along the duct into an electric energy;    a light source converting the electric energy generated by the solar cell into artificial light and emitting the artificial light to the indoor space; and    a ventilation device connected to the duct.    
   
   
       2 . The ventilation system according to  claim 1 , wherein a light collection unit for inducing the natural light is provided on the duct.  
   
   
       3 . The ventilation system according to  claim 2 , wherein a solar cell for converting the natural energy into the electric energy and a charging unit for storing the converted electric energy are provided in the light collection unit.  
   
   
       4 . The ventilation system according to  claim 3 , wherein the solar cell of the light collection unit is used as a voltage source of the light source.  
   
   
       5 . The ventilation system according to  claim 2 , wherein the light collection unit selectively opens the duct.  
   
   
       6 . The ventilation system according to  claim 1 , further comprising an incident angle adjusting unit for adjusting an incident angle of light passing through an internal portion of the duct.  
   
   
       7 . The ventilation system according to  claim 1 , wherein light is incident from both sides of the duct and emitted to the indoor space.  
   
   
       8 . The ventilation system according to  claim 1 , wherein a sensor for detecting an altitude of the sun is provided on the duct.  
   
   
       9 . The ventilation system according to  claim 1 , wherein an optical fiber is provided in the duct.  
   
   
       10 . A ventilation system comprising: 
 an exhaust duct for exhausting indoor air to an outdoor side;    a supply duct for directing outdoor air and light to an indoor space;    a ventilation device connected to each duct;    a light collection unit for inducing natural light to the supply duct;    a solar cell converting natural light induced to the supply duct into an electric energy; and    a light source converting the electric energy generated by the solar cell into artificial light and emitting the artificial light to the indoor space.    
   
   
       11 . The ventilation system according to  claim 10 , wherein the light collection unit is deigned to rotate in response to an altitude of the sun.  
   
   
       12 . The ventilation system according to  claim 10 , wherein the light collection unit selectively opens the duct.  
   
   
       13 . The ventilation system according to  claim 1 , wherein the light collection unit includes a solar cell converting the natural light into an electric energy.  
   
   
       14 . The ventilation system according to  claim 10 , wherein the natural light and the artificial light are emitted to the indoor space.  
   
   
       15 . The ventilation system according to  claim 10 , wherein an optical fiber is provided in the supply duct.  
   
   
       16 . A method of controlling a ventilation system, comprising: 
 directing natural light into a duct along which air flows;    converting an energy of the incident natural energy into an electric energy; and    converting the electric energy into artificial light and emitting the artificial light into an indoor space.    
   
   
       17 . The method according to  claim 16 , wherein the electric energy used as a power voltage of the artificial light is supplied by a solar cell.  
   
   
       18 . The method according to  claim 17 , wherein the solar cell is installed in a light collection unit inducing the natural light to the duct or in the duct.  
   
   
       19 . The method according to  claim 18 , wherein the light collection unit is designed to rotate with respect to the duct in response to an altitude of the sun.  
   
   
       20 . The method according to  claim 16 , wherein the natural light or the artificial light traveling along the duct is total-reflected.