Burner and cooking device

Abstract

A cooking device is provided. The cooking device includes a cavity and a burner. The cavity provides a cooking chamber. The burner is in the cavity and heats food in the cooking chamber. The burner includes a supply part and a combustion part. The supply part supplies a gaseous fuel mixed with air. The combustion part burns the mixed gaseous fuel and has an open curve shape.

1 . A cooking device comprising:
 a cavity providing a cooking chamber; and   a burner in the cavity, the burner heating food in the cooking chamber,   wherein the burner includes:   a supply part supplying a gaseous fuel mixed with air; and   a combustion part that burns the mixed gaseous fuel and having an open curve shape.   
     
     
         2 . The cooking device according to  claim 1 , wherein the combustion part is bent at one or more times. 
     
     
         3 . The cooking device according to  claim 1 , wherein the combustion part has a first end connected to the supply part, and a closed second end, and the mixed gaseous fuel flows in the combustion part. 
     
     
         4 . The cooking device according to  claim 1 , wherein the combustion part is disposed horizontally in the cavity. 
     
     
         5 . The cooking device according to  claim 1 , wherein the combustion part comprises:
 a plurality of straight portions spaced apart from each other; and   one or more connection portions connecting the straight portions.   
     
     
         6 . The cooking device according to  claim 5 , wherein the straight portions each is provided with a plurality of flame holes generating flames, and
 the flame hole of the straight portion distant from the supply part along a flow path of the mixed gaseous fuel is greater than the flame hole of the straight portion close to the supply part along the flow path of the mixed gaseous fuel.   
     
     
         7 . The cooking device according to  claim 5 , wherein the connection portion is round. 
     
     
         8 . The cooking device according to  claim 5 , wherein the connection portion comprises a plurality of flame holes that transfers a flame between adjacent two of the straight portions, and
 a distance between the flame holes of the connection portion is greater than a distance between the flame holes of the straight portion.   
     
     
         9 . The cooking device according to  claim 1 , further comprising a reflector that is disposed between a ceiling of the cavity and the burner to reflect heat generated from the burner to the cooking chamber. 
     
     
         10 . The cooking device according to  claim 1 , wherein the combustion part comprises:
 a distribution part receiving the mixed gaseous fuel from the supply part; and   a plurality of branches separated from the distribution part, and   ends of the branches are spaced apart from each other.   
     
     
         11 . The cooking device according to  claim 1 , wherein the supply part is provided with one or more flame holes. 
     
     
         12 . A cooking device comprising:
 a supply part where a gaseous fuel mixed with air flows; and   a combustion part connected to the supply part and bent at one or more times, the mixed gaseous fuel flowing along an inner space of the combustion part.   
     
     
         13 . A burner comprising:
 a first combustion part receiving a gaseous fuel mixed with air and provided with one or more flame holes; and   a second combustion part that burns the mixed gaseous fuel supplied from the first combustion part and is bent at one or more times.   
     
     
         14 . The burner according to  claim 13 , wherein the first combustion part has both sides, each of which is provided with one or more flame holes. 
     
     
         15 . The burner according to  claim 13 , wherein the first and second combustion parts each is provided with a plurality of flame holes, and
 a distance between the flame holes at least in a curve portion of the second combustion part is greater than a distance between the flame holes of the first combustion part.   
     
     
         16 . The burner according to  claim 13 , wherein the second combustion part has an open curve shape. 
     
     
         17 . A burner comprising:
 a supply part receiving a gaseous fuel mixed with air; and   a combustion part burning the mixed gaseous fuel supplied from the supply part,   wherein the combustion part has a first end connected to the supply part, and a closed second end.   
     
     
         18 . The burner according to  claim 17 , wherein the combustion part comprises:
 a plurality of straight portions spaced apart from each other; and   one or more connection portions connecting the straight portions, and   the supply part is connected to one of the straight portions.   
     
     
         19 . The burner according to  claim 17 , wherein the combustion part comprises one or more straight portions and one or more curve portions, and
 each of the straight portion and the curve portion is provided with a plurality of flame holes, and   a distance between the flame holes of the curve portion is greater than a distance between the flame holes of the straight portion.   
     
     
         20 . The burner according to  claim 17 , wherein the combustion part is round as a whole.