Cooking apparatus and control method thereof

Abstract

A cooking apparatus comprises a body forming a cavity, a temperature sensor configured to detect a temperature of the cavity, a burner configured to heat the cavity by burning gaseous fuel, and a controller configured to identify a temperature variation of the cavity based on the temperature detected by the temperature sensor, and configured to stop an operation of the burner based on a change in the temperature variation of the cavity being less than a reference value.

What is claimed is: 
     
         1 . A cooking apparatus comprising:
 a body forming a cavity;   a temperature sensor configured to detect a temperature of the cavity;   a burner configured to heat the cavity by burning gaseous fuel; and   a controller configured to identify a temperature variation of the cavity based on the temperature detected by the temperature sensor, and configured to stop an operation of the burner based on a change in the temperature variation of the cavity being less than a reference value.   
     
     
         2 . The cooking apparatus of  claim 1 , wherein
 the controller is configured to identify the change in the temperature variation of the cavity based on a change between a temperature variation of the cavity at a first time and a temperature variation of the cavity at a second time.   
     
     
         3 . The cooking apparatus of  claim 1 , wherein
 the controller is configured to stop the operation of the burner based on the change in the temperature variation of the cavity being less than the reference value during a first reference time.   
     
     
         4 . The cooking apparatus of  claim 1 , wherein
 the controller is configured to continue the operation of the burner based on the change in the temperature variation of the cavity being greater than or equal to the reference value during a second reference time.   
     
     
         5 . The cooking apparatus of  claim 1 , wherein
 an operation of the cooking apparatus comprises a pre-heating operation of the cavity and a cooking operation of food accommodated in the cavity,   wherein the controller is configured to:
 control the cooking apparatus to start the cooking operation in response to the temperature of the cavity detected by the temperature sensor before the pre-heating operation being greater than or equal to a reference temperature, and 
 control the cooking apparatus to start the pre-heating operation in response to the temperature of the cavity being less than the reference temperature. 
   
     
     
         6 . The cooking apparatus of  claim 1 , further comprising:
 a convection fan,   wherein the controller is configured to drive the convection fan to circulate air inside the cavity based on the change in the temperature variation of the cavity being less than the reference value.   
     
     
         7 . The cooking apparatus of  claim 1 , further comprising:
 a display,   wherein the controller is configured to cause the display to display a message indicating an operation error of the cooking apparatus based on the change in the temperature variation of the cavity being less than the reference value.   
     
     
         8 . A control method of a cooking apparatus including a body, the control method comprising:
 driving a burner configured to heat a cavity of the cooking apparatus by burning gaseous fuel;   detecting a temperature of the cavity;   identifying a temperature variation of the cavity based on the detected temperature; and   stopping an operation of the burner based on a change in the temperature variation of the cavity being less than a reference value.   
     
     
         9 . The control method of  claim 8 , wherein
 the identifying of the change in the temperature variation of the cavity comprises identifying the change in the temperature variation of the cavity based on a change between a temperature variation of the cavity at a first time and a temperature variation of the cavity at a second time.   
     
     
         10 . The control method of  claim 8 , wherein
 the stopping of the operation of the burner comprises stopping the operation of the burner based on the change in the temperature variation of the cavity being less than the reference value during a first reference time.   
     
     
         11 . The control method of  claim 8 , further comprising:
 continuing the operation of the burner based on the change in the temperature variation of the cavity being greater than or equal to the reference value during a second reference time.   
     
     
         12 . The control method of  claim 8 , wherein
 an operation of the cooking apparatus comprises a pre-heating operation for pre-heating the cavity and a cooking operation for cooking food accommodated in the cavity,   wherein the control method further comprises starting the cooking operation in response to the temperature of the cavity detected by the temperature sensor before the pre-heating operation, being greater than or equal to a first reference temperature, and starting the pre-heating operation in response to the temperature of the cavity being less than the reference temperature.   
     
     
         13 . The control method of  claim 8 , further comprising:
 driving a convection fan to circulate air inside the cavity based on the change in the temperature variation of the cavity being less than the reference value.   
     
     
         14 . The control method of  claim 8 , further comprising:
 controlling a display to display a message indicating an operation error of the cooking apparatus based on the change in the temperature variation of the cavity being less than the reference value.   
     
     
         15 . A cooking apparatus comprising:
 a body forming a cavity;   a temperature sensor configured to detect a temperature of the cavity;   a burner configured to heat the cavity by burning gaseous fuel; and   a controller configured to stop an operation of the burner in response to the temperature of the cavity detected by the temperature sensor after a predetermined time elapses since an operation of the cooking apparatus starts, being less than a predetermined temperature.   
     
     
         16 . The cooking apparatus of  claim 15 , wherein
 the operation of the cooking apparatus comprises pre-heating for pre-heating the cavity and cooking for cooking food accommodated in the cavity,   wherein the controller is configured to control the cooking apparatus to start the cooking in response to the temperature of the cavity detected by the temperature sensor before the pre-heating, being greater than or equal to a predetermined first reference temperature, and configured to control the cooking apparatus to start the pre-heating in response to the temperature of the cavity being less than the predetermined first reference temperature.   
     
     
         17 . The cooking apparatus of  claim 16 , wherein
 the controller is configured to stop the operation of the burner in response to the temperature of the cavity detected by the temperature sensor after a predetermined first reference time elapses since the pre-heating of the cooking apparatus starts, being less than a predetermined second reference temperature.   
     
     
         18 . The cooking apparatus of  claim 16 , wherein
 the controller is configured to control the cooking apparatus to continue the cooking in response to the temperature of the cavity detected by the temperature sensor after the predetermined second reference time elapses since the cooking of the cooking apparatus starts, being greater than or equal to a predetermined third reference temperature.   
     
     
         19 . The cooking apparatus of  claim 17 , wherein
 the controller is configured to stop the operation of the burner in response to the temperature of the cavity detected by the temperature sensor after the predetermined second reference time elapses since the cooking of the cooking apparatus starts, being less than the predetermined third reference temperature.   
     
     
         20 . The cooking apparatus of  claim 17 , further comprising:
 a convection fan,   wherein the controller is configured to drive the convection fan to circulate air inside the cavity in response to the temperature of the cavity detected by the temperature sensor after the predetermined time elapses since the operation of the cooking apparatus starts, being less than the predetermined temperature.