Cooking appliance

Abstract

Provided is a cooking appliance including a heat accumulation section in an inner surface of a cavity. Therefore, heat generated by a heater may be accumulated in or emitted from the heat accumulation section, and thus food can be cooked through gradual heating of the cooking appliance.

What is claimed is: 
     
         1 . A cooking appliance comprising:
 a cavity having a top surface rounded to be convex upward; and   a heater spaced a constant distance from the top surface of the cavity.   
     
     
         2 . The cooking appliance according to  claim 1 , further comprising a reflective part disposed at an upper side of the heater and reflecting heat from the heater into the cavity. 
     
     
         3 . The cooking appliance according to  claim 2 , wherein the reflective part is spaced a constant distance from the top surface of the cavity. 
     
     
         4 . The cooking appliance according to  claim 1 , further comprising a heat-resistant glass disposed under the heater and formed of a transparent or translucent material. 
     
     
         5 . The cooking appliance according to  claim 1 , wherein the heater comprises a burner including a flame hole for discharging fuel gas to be burned. 
     
     
         6 . The cooking appliance according to  claim 5 , wherein the flame hole is in a horizontal position, or is in a tangential position to the top surface of the cavity. 
     
     
         7 . The cooking appliance according to  claim 5 , wherein the flame hole for discharging fuel gas is disposed at an uppermost point in the cavity. 
     
     
         8 . A cooking appliance comprising:
 a cavity having a top surface rounded to be convex upward; and   a heater installed on the cavity, and emitting heat into the cavity,   wherein the heater includes one or more heater units that are selectively assembled to vary the number of the heater units.   
     
     
         9 . The cooking appliance according to  claim 8 , further comprising one or more heating plate units that are selectively installed in the cavity to vary the number of the heating plate units,
 wherein the heating plate unit includes:   a heater section including the heater unit;   a heat accumulation section for accumulating and emitting heat generated from the heater unit.   
     
     
         10 . The cooking appliance according to  claim 9 , wherein the heating plate unit comprises a connecting part for connecting the heater unit to a power source. 
     
     
         11 . The cooking appliance according to  claim 10 , wherein, when a first unit and a second unit of the heating plate units are coupled to each other, a connecting part of the first unit is connected to a connecting part of the second unit.