Oven appliance and methods for high-heat cooking

Patent metadata

Field	Value
Publication number	US-11873997-B2
Application number	US-202016915313-A
Country	US
Kind code	B2
Filing date	Jun 29, 2020
Priority date	Jun 29, 2020
Publication date	Jan 16, 2024
Grant date	Jan 16, 2024

Abstract

Methods for operating an oven appliance, as provided herein, may include various steps for activating top and bottom heating elements (e.g., at overlapping times) prior to limiting activation of one of the heating elements based on one or more received temperature signals.

First claim

What is claimed is:

1. A method of operating an oven appliance comprising a plurality of chamber walls mounted within a cabinet and defining an oven chamber, a cooking surface defined in the oven chamber between a bottom wall and a top wall of the plurality of chamber walls, a bottom heating element mounted above the bottom wall to heat the cooking surface, and a top heating element mounted above the cooking surface to heat the oven chamber, the method comprising:
receiving one or more temperature signals from a first temperature sensor at the cooking surface and a second temperature sensor mounted above the first temperature sensor;
initiating cooking activation of the bottom heating element;
initiating high-output activation of the top heating element during cooking activation of the bottom heating element;
determining a restriction condition subsequent to initiating high-output activation of the top heating element, wherein determining the restriction condition comprises determining expiration of a high-output period of at least two minutes; and
restricting, in response to determining the restriction condition, heat output at the top heating element during cooking activation of the bottom heating element.

2. The method of claim 1 , wherein initiating activation of the bottom heating element and initiating high-output activation of the top heating element is subsequent to directing a preheat cycle, wherein directing the preheat cycle comprises
initiating preheat activation of the bottom heating element,
receiving one or more temperature signals from the first temperature sensor at the cooking surface and the second temperature sensor mounted above the first temperature sensor, receiving occurring during preheat activation of the bottom heating element and preheat activation of the top heating element, and
determining a preheat threshold is met based on the received one or more temperature signals.

3. The method of claim 1 , wherein determining the restriction condition comprises determining expiration of a high-output period.

4. The method of claim 1 , wherein restricting heat output at the top heating element comprises halting activation of the top heating element.

5. The method of claim 1 , wherein restricting heat output at the top heating element comprises initiating low-temperature activation of the top heating element.

6. The method of claim 1 , further comprising:
determining, subsequent to restricting heat output, a permissive condition comprising expiration of a restriction period; and
permitting high-output activation of the top heating element in response to determining the permissive condition.

7. The method of claim 1 , further comprising:
determining, subsequent to restricting heat output, a permissive condition comprising a determining a restriction lower limit is met at the second temperature sensor; and
permitting high-output activation of the top heating element in response to determining the permissive condition.

8. A method of operating an oven appliance comprising a plurality of chamber walls mounted within a cabinet and defining an oven chamber, a cooking surface defined in the oven chamber between a bottom wall and a top wall of the plurality of chamber walls, a bottom heating element mounted above the bottom wall to heat the cooking surface, and a top heating element mounted above the cooking surface to heat the oven chamber, the method comprising:
receiving one or more temperature signals from a first temperature sensor at the cooking surface and a second temperature sensor mounted above the first temperature sensor;
initiating cooking activation of the bottom heating element;
initiating high-output activation of the top heating element during cooking activation of the bottom heating element;
determining a restriction condition subsequent to initiating high-output activation of the top heating element, wherein determining the restriction condition comprises determining expiration of a high-output period between two and ten minutes; and
restricting, in response to determining the restriction condition, heat output at the top heating element during cooking activation of the bottom heating element.

9. A method of operating an oven appliance comprising a plurality of chamber walls mounted within a cabinet and defining an oven chamber, a cooking surface defined in the oven chamber between a bottom wall and a top wall of the plurality of chamber walls, a bottom heating element mounted above the bottom wall to heat the cooking surface, and a top heating element mounted above the cooking surface to heat the oven chamber, the method comprising:
initiating preheat activation of the bottom heating element;
initiating preheat activation of the top heating element during preheat activation of the bottom heating element;
receiving one or more temperature signals from a first temperature sensor at the cooking surface and a second temperature sensor mounted above the first temperature sensor, receiving occurring during the preheat activation of the bottom heating element and the preheat activation of the top heating element;
determining a preheat threshold is met based on the received one or more temperature signals; and
directing the bottom heating element and the top heating element according to a cooking cycle subsequent to determining the preheat threshold is met, wherein directing the bottom heating element and the top heating element according to the cooking cycle comprises
initiating cooking activation of the bottom heating element,
initiating high-output activation of the top heating element,
determining a restriction condition subsequent to initiating high-output activation of the top heating element, wherein determining the restriction condition comprises determining expiration of a high-output period of at least two minutes, and
restricting heat output at the top heating element while maintaining activation of the bottom heating element in response to determining the restriction condition.

10. The method of claim 9 , wherein initiating preheat activation of the top heating element is during initiating preheat activation of the bottom heating element.

11. The method of claim 9 , wherein determining the preheat threshold is met comprises
determining a first sensor temperature signal from the first temperature sensor is greater than a first sensor threshold, and
determining a second sensor temperature signal from the second temperature sensor is less than or equal to a second sensor threshold.

12. The method of claim 11 , wherein the second sensor threshold is less than the first sensor threshold.

13. The method of claim 9 , wherein determining the preheat threshold is met comprises
determining a first sensor temperature signal from the first temperature sensor is less than or equal to a first sensor threshold, and
determining a second sensor temperature signal from the second temperature sensor is greater than a second sensor threshold.

14. The method of claim 13 , wherein the second sensor threshold is less than the first sensor threshold.

15. The method of claim 9 , wherein the cooking surface is defined by a cooking plate disposed on a base panel within a receiving zone above the bottom wall, wherein first temperature sensor is mounted on the cooking plate, and wherein the second temperature sensor is mounted above the cooking surface.

16. The method of claim 9 , wherein determining the restriction condition comprises determining a cooking threshold is met at the second temperature sensor.

Assignees

• Haier Us Appliance Solutions Inc

Inventors

• Johnson Eric Scott
• Paller Hans Juergen

Classifications

• F24C7/085 Primary

  on baking ovens · CPC title

• A21B1/02

  characterised by the heating arrangements · CPC title

• A21B1/40

  characterised by the means for regulating the temperature · CPC title

• A23L5/15

  using wave energy, irradiation, electrical means or magnetic fields, e.g. oven cooking or roasting using radiant dry heat · CPC title

• A23V2002/00

  Food compositions, function of food ingredients or processes for food or foodstuffs · CPC title