Method for controlling cleaning cooking appliance

1 . A method for controlling cleaning of a cooking appliance, the cooking appliance including a cavity configured to accommodate food to be cooked, the cavity including a panel, a broil heater configured to apply radiant heat to the cavity, and a bake heater configured to heat the panel, the method comprising:

selecting a mode including selecting a self-clean mode of the cavity;

increasing an internal temperature of the cavity to a set first temperature and then to a set second temperature; and

maintaining the internal temperature of the cavity at the second temperature,

wherein the increasing the internal temperature includes controlling a temperature increase rate inside the cavity in the increasing the internal temperature by operating the broil heater and the bake heater alternately,

wherein the increasing the internal temperature includes:

increasing the internal temperature of the cavity to the first temperature set lower than the second temperature; and

increasing the internal temperature of the cavity to reach the second temperature from the first temperature,

wherein a temperature increase rate inside the cavity in the increasing the internal temperature of the cavity to the first temperature is set higher than a temperature increase rate inside the cavity in the increasing the internal temperature of the cavity to reach the second temperature, and

wherein, after the internal temperature of the cavity reaches the first temperature, an inner heater of the broil heater and the bake heater alternate outputting heat more frequently than after the internal temperature of the cavity reaches the second temperature.

2 . The method of claim 1 , wherein the broil heater further includes:

an outer heater disposed at an upper portion of the cavity and surrounding the inner heater,

wherein the inner heater is disposed at the upper portion of the cavity, and

wherein the outer heater has a maximum heat output capacity that is lower than a maximum heat output capacity of the inner heater.

3 . The method of claim 2 , wherein the increasing the internal temperature further includes alternately operating the inner heater and the bake heater to control the temperature increase rate inside the cavity.

4 . The method of claim 3 , wherein in the increasing the internal temperature of the cavity to the first temperature, the inner heater and the bake heater operate in a continuous alternating manner, and

wherein in the increasing the internal temperature of the cavity to reach the second temperature, and the inner heater and the bake heater operate alternately with each other and further includes a time period where both the inner heater and the bake heater do not operate.

5 . The method of claim 3 , wherein in the increasing the internal temperature of the cavity to the first temperature, the outer heater does not operate, and the inner heater and the bake heater operate in a continuous alternating manner, and

wherein in the increasing the internal temperature of the cavity to reach the second temperature, the outer heater does not operate, and the inner heater and the bake heater operate alternately with each other, and further includes a time period where both the inner heater and the bake heater do not operate.

6 . The method of claim 3 , wherein, in the increasing the internal temperature, the inner heater and the bake heater operate in a continuous alternating manner, and an operation time of the bake heater is set larger than an operation time of the inner heater.

7 . The method of claim 3 , wherein, in the increasing the internal temperature, the outer heater does not operate, and the inner heater and the bake heater operate alternately with each other, and an operation time of the bake heater is set to be longer than an operation time of the inner heater.

8 . A method for controlling cleaning of a cooking appliance, the cooking appliance including a cavity configured to accommodate food to be cooked, the cavity including a panel, a heater configured to heat an interior of the cavity, and a controller configured to control the heater, the method comprising:

increasing an internal temperature of the cavity to a set first temperature and then to a set second temperature; and

maintaining the internal temperature of the cavity at the second temperature,

wherein the increasing the internal temperature includes:

increasing the internal temperature of the cavity to the first temperature set lower than the second temperature; and

increasing the internal temperature of the cavity to reach the second temperature from the first temperature,

wherein a temperature increase rate inside the cavity in the increasing the internal temperature of the cavity to the first temperature is set higher than a temperature increase rate inside the cavity in the increasing the internal temperature of the cavity to reach the second temperature,

wherein the heater includes a broil heater and a bake heater, and

wherein, after the internal temperature of the cavity reaches the first temperature, an inner heater of the broil heater and the bake heater alternate outputting heat more frequently than after the internal temperature of the cavity reaches the second temperature.

9 . The method of claim 8 , wherein the heater includes a plurality of heaters, and

wherein in the increasing the internal temperature of the cavity to reach the second temperature, there is a time period where some of the plurality of heaters operating in the increasing the internal temperature of the cavity to the first temperature do not operate.

10 . The method of claim 8 , wherein the broil heater includes

an outer heater disposed at an upper portion of the cavity and surrounding the inner heater,

wherein the inner heater is disposed at the upper portion of the cavity,

wherein the outer heater has a maximum heat output that is lower than a maximum heat output of the inner heater, and

wherein the increasing the internal temperature includes controlling a temperature increase rate inside the cavity by operating the inner heater and the bake heater alternately.

11 . The method of claim 10 , wherein in the increasing the internal temperature of the cavity to the first temperature, the inner heater and the bake heater operate in a continuous alternating manner, and

wherein in the increasing the internal temperature of the cavity to reach the second temperature, the inner heater and the bake heater operate alternately with each other and further includes a time period where both the inner heater and the bake heater do not operate.

12 . The method of claim 10 , wherein in the increasing the internal temperature of the cavity to the first temperature, the outer heater does not operate, and the inner heater and the bake heater operate in a continuous alternating manner, and

wherein in the increasing the internal temperature of the cavity to reach the second temperature, the outer heater does not operate, and the inner heater and the bake heater operate alternately with each other, and further includes a time period where both the inner heater and the bake heater do not operate.

13 . The method of claim 10 , wherein, in the maintaining the temperature, the inner heater and the bake heater operate in a continuous alternating manner.

14 . A method for controlling cleaning of a cooking appliance, the cooking appliance including a cavity configured to accommodate food to be cooked, the cavity including a panel, an inner heater disposed at an upper portion of the cavity, an outer heater disposed at the upper portion of the cavity to surround the inner heater, the outer heater having a maximum heat output lower than a maximum heat output of the inner heater, and a bake heater configured to heat the panel, the method comprising:

increasing an internal temperature of the cavity to a set first temperature and then to a set second temperature; and

maintaining the internal temperature of the cavity at the set second temperature,

wherein the increasing the internal temperature and the maintaining the internal temperature each include:

operating the inner heater and the bake heater in a continuous alternating manner; and

setting an operation time of the bake heater to be longer than an operation time of the inner heater,

wherein the increasing the internal temperature includes:

increasing the internal temperature of the cavity to the first temperature set lower than the second temperature; and

increasing the internal temperature of the cavity to reach the second temperature from the first temperature,

wherein a temperature increase rate inside the cavity in the increasing the internal temperature of the cavity to the first temperature is set higher than a temperature increase rate inside the cavity in the increasing the internal temperature of the cavity to reach the second temperature,

wherein a broil heater includes the inner heater and outer heater, and

wherein, after the internal temperature of the cavity reaches the first temperature, the inner heater of the broil heater and the bake heater alternate outputting heat more frequently than after the internal temperature of the cavity reaches the second temperature.

15 . The method of claim 14 , wherein in the increasing the internal temperature and the maintaining the internal temperature, the outer heater does not operate continuously.

16 . The method of claim 14 , wherein the set first temperature is a temperature at which organic matter decomposes.

17 . The method of claim 14 , wherein the cooking appliance further includes a convection heater including a fan and a convection unit,

wherein the convection heater is disposed at a rear of the cavity, and

wherein the fan is configured to circulate air inside the cavity.