Combustion Device Capable of Avoiding Overheat

Abstract

A combustion device includes a burner and a shield. The burner includes a fuel container having a top defining an opening. A wick has a bottom end and a top end. The bottom end is inserted into the fuel container via the opening, and the top end protrudes outside the fuel container and is at a first height in a vertical direction. The shield defines a space, and the burner is disposed within the space. The shield has a first through-hole extending therethrough and communicating the space and the outside of the shield. The first through-hole is at a second height in the vertical direction, and the second height is less than the first height.

1 . A combustion device comprising:
 a burner including a fuel container and a wick, wherein the fuel container has a top defining an opening, and a bottom adapted to rest on a plane, wherein the wick has a bottom end and a top end opposite to the bottom end, wherein the bottom end is inserted into the fuel container via the opening, wherein the top end protrudes outside the fuel container and is at a first height in a vertical direction from the bottom; and   a shield defining a space and the burner is disposed within the space, wherein the shield has a first through-hole extending therethrough and communicating the space and the outside of the shield, wherein the first through-hole is at a second height in the vertical direction from the bottom, and wherein the second height is less than the first height.   
     
     
         2 . The combustion device as claimed in  claim 1 , wherein the opening is at a third height in the vertical direction from the bottom; and wherein the second height is less than the third height. 
     
     
         3 . The combustion device as claimed in  claim 2 , wherein the shield has a bottom portion and a top portion opposite to the bottom portion in the vertical direction, and wherein the space extends from the bottom portion to the top portion. 
     
     
         4 . The combustion device as claimed in  claim 3 , wherein the shield is formed as a monolithic structure having a side wall and a bottom wall, wherein the side wall is shaped as a hollow cylinder and extends from the bottom portion to the top portion in the vertical direction, wherein the bottom wall is connected to the side wall and inwardly extends from the bottom portion in a horizontal direction, and wherein the first through-hole penetrates through the bottom wall. 
     
     
         5 . The combustion device as claimed in  claim 4 , wherein the shield has a plurality of second through-hole penetrating through the side wall and communicating the space and the outside of the shield, wherein any one of the plurality of second through-hole is at a fourth height in the vertical direction from the bottom, and wherein the fourth height is less than the first height and the third height. 
     
     
         6 . The combustion device as claimed in  claim 4 , wherein the shield has three support legs disposed at the bottom wall and equally spaced around the first through-hole. 
     
     
         7 . The combustion device as claimed in  claim 6 , wherein the three support legs are adapted to stand on the plane, and wherein the fuel container passes through the first through-hole and is placed on the plane. 
     
     
         8 . The combustion device as claimed in  claim 5 , wherein the shield has three support legs disposed at the bottom wall and equally spaced around the first through-hole. 
     
     
         9 . The combustion device as claimed in  claim 8 , wherein the three support legs are adapted to stand on the plane, and wherein the fuel container passes through the first through-hole and is placed on the plane. 
     
     
         10 . The combustion device as claimed in  claim 1 , wherein the shield is transparent to light. 
     
     
         11 . The combustion device as claimed in  claim 1 , wherein the shield is made of glass.