Heating systems and methods for a cooking appliance

• US 20080128403A1
• Filed: 12/05/2006
• Published: 06/05/2008
• Est. Priority Date: 12/05/2006
• Status: Active Grant

• Current Assignee: Haier US Appliance Solutions, Inc. DBA GE Appliances (Haier Group Company)
• Original Assignee: General Electric Company
• Inventors: Jones, Deborah J., Heinze, Bonnie W.
• Granted Patent: US 7,755,006 B2
• Time in Patent Office: Days
• US Class Current: 219/391
• CPC Class Codes: F24C 7/08 Arrangement or mounting of control or safety devices
• CPC Class Codes: H05B 1/0263 Ovens

Abstract

A heating system for a cooking appliance includes at least one heating element positioned within a cooking cavity defined by a cabinet of the cooking appliance. The cooking cavity is configured to support a food item therein during a cooking process. A controller is in operational control communication with the at least one heating element. The controller is configured to energize the at least one heating element to operate a slow cook mode for cooking the food item.

Claims

1. A heating system for a cooking appliance, the cooking appliance comprising a cabinet defining a cooking cavity, the cooking cavity configured to support a food item therein during a cooking process, said heating system comprising:

at least one heating element positioned within said cooking cavity; and

a controller in operational control communication with said at least one heating element, said controller configured to energize said at least one heating element to operate a slow cook mode for cooking the food item.

2. A heating system in accordance with claim 1 wherein said controller is configured to operate a slow cook process having a first cooking phase and a second cooking phase in the slow cook mode, said controller is configured to heat said cooking cavity to a first cooking temperature for a first cooking time in the first cooking phase and to heat said cooking cavity to a second cooking temperature for a second cooking time in the second cooking phase, the first cooking temperature different than the second cooking temperature.

3. A heating system in accordance with claim 2, wherein said controller is configured to operate a third cooking phase and a fourth cooking phase in the slow cook process, said controller is configured to heat said cooking cavity to a third cooking temperature for a third cooking time in the third cooking phase and to heat said cooking cavity to a fourth cooking temperature for a fourth cooking time in the fourth cooking phase, the third cooking temperature different than at least one of the first cooking temperature, the second cooking temperature and the fourth cooking temperature, and the third cooking time different than at least one of the first cooking time, the second cooking time and the fourth cooking time.

4. A heating system in accordance with claim 3 wherein said controller is configured to alternately operate at least two of the first cooking phase, the second cooking phase, the third cooking phase and the fourth cooking phase during the cooking process, at least two corresponding cooking temperatures of the alternately operated cooking phases are different, and at least two corresponding cooking times of the alternately operated cooking phases are different.

5. A heating system in accordance with claim 1 wherein said controller is configured to operate the slow cook mode in at least one of a high power level and a low power level.

6. A heating system in accordance with claim 2 wherein said controller is configured to operate a warming process after the slow cook process in the slow cook mode, said controller is configured to heat said cooking cavity to a temperature not greater than about 280°

F. during the warming process.

7. A heating system in accordance with claim 1 wherein said controller is configured to operate the slow cook mode for about 3 hours to about 12 hours.

8. A cooking appliance comprising:

a cabinet at least partially defining a cooking cavity, said cooking cavity configured to support a food item therein during a cooking process;

at least one heating element positioned within said cooking cavity;

a temperature sensor positioned with respect to said cooking cavity and configured to detect a temperature within said cooking cavity; and

a controller in operatively coupled to said at least one heating element and said temperature sensor, said controller configured to energize said at least one heating element to operate a slow cook mode for cooking the food item within said cooking cavity.

9. A cooking appliance in accordance with claim 8 wherein said controller is configured to energize said at least one heating element to heat said cooking cavity to a temperature not greater than about 400°

F. in the slow cook mode.

10. A cooking appliance in accordance with claim 8 wherein said controller is configured to operate the slow cook mode having a first cooking phase and a second cooking phase, said controller is configured to heat said cooking cavity to a first cooking temperature for a first cooking time in the first cooking phase and to heat said cooking cavity to a second cooking temperature for a second cooking time in the second cooking phase, the first cooking temperature different than the second cooking temperature.

11. A cooking appliance in accordance with claim 10 wherein said controller is configured to operate a third cooking phase and a fourth cooking phase, and said controller is configured to heat said cooking cavity to a third cooking temperature for a third cooking time in the third cooking phase and to heat said cooking cavity to a fourth cooking temperature for a fourth cooking time in the fourth cooking phase, the third cooking temperature different than the fourth cooking temperature and the third cooking time different than the fourth cooking time.

12. A cooking appliance in accordance with claim 11 wherein said controller is configured to alternately operate the third cooking phase and the fourth cooking phase.

13. A cooking appliance in accordance with claim 8 wherein said controller is configured to operate the slow cook mode in at least one of a high power level and a low power level.

14. A cooking appliance in accordance with claim 8 wherein said controller is configured to operate a warming process in the slow cook mode, said controller is configured to heat said cooking cavity to a temperature below about 280°

F.

15. A cooking appliance in accordance with claim 8 wherein said controller is configured to operate the slow cook process for about 3 hours to about 12 hours.

16. A method for operating a cooking appliance comprising:

providing a cabinet at least partially defining a cooking cavity, the cooking cavity configured to receive a food item therein;

positioning at least one heating element within the cooking cavity; and

operatively coupling a controller to the at least one heating element, the controller configured to energize the at least one heating element to operate a slow cook mode for cooking the food item within the cooking cavity.

17. A method in accordance with claim 16 further comprising operating the appliance in a slow cook mode having a first cooking phase and a second cooking phase, wherein the cooking cavity is heated to a first cooking temperature for a first cooking time in the first cooking phase, and the cooking cavity is heated to a second cooking temperature for a second cooking time in the second cooking phase, the first cooking temperature different than the second cooking temperature.

18. A method in accordance with claim 17 further comprising operating a third cooking phase and a fourth cooking phase, wherein the cooking cavity is heated to a third cooking temperature for a third cooking time in the third cooking phase, and the cooking cavity is heated to a fourth cooking temperature for a fourth cooking time in the fourth cooking phase, the third cooking temperature different than the fourth cooking temperature and the third cooking time different than the fourth cooking time.

19. A method in accordance with claim 18 further comprising alternately operating the third cooking phase and the fourth cooking phase during the slow cook mode.

20. A method in accordance with claim 16 further comprising operating the slow cook mode for about 3 hours to about 12 hours.