IP Library › Granted Patent US 12,723,762
Granted Patent B2
US 12,723,762 · App. 18/308,245 · Granted Sep 1, 2026

Adjusting preheating parameters for cooking appliances

Inventors: Omar Santana (Louisville, KY); Pirapat Kitipongpatana (Louisville, KY)
Assignee: Haier US Appliance Solutions, Inc.
F24C7/088F24C7/062F24C7/086
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Quick Facts
Patent No.
US 12,723,762
App. No.
18/308,245
Granted
Sep 1, 2026
Kind
B2
Abstract

A cooking appliance includes at least one heating element to selectively supply heat to a cookware item; and a controller operably connected with the at least one heating element, the controller configured to direct a heating operation. The heating operation includes a preheating phase and a cooking phase. The heating operation includes receiving a temperature setpoint for the cooking phase; determining at least one attribute for the at least one heating element for the preheating phase, the at least one attribute being based on the temperature setpoint; and initiating the preheating phase by directing the at least one heating element according to the at least one determined attribute.

Claims (32)

1 . A cooking appliance defining a vertical direction, a lateral direction, and a transverse direction, the cooking appliance comprising:

at least one heating element to selectively supply heat to a cookware item; and

a controller operably connected with the at least one heating element, the controller configured to direct a heating operation comprising a preheating phase and a cooking phase, wherein directing the heating operation comprises:

receiving a temperature setpoint for the cooking phase;

determining a power level of the at least one heating element for the preheating phase based on the temperature setpoint, wherein determining the power level comprises retrieving the power level from a lookup table comprising a plurality of power levels; and

initiating the preheating phase by directing the at least one heating element according to the determined power level.

2 . The cooking appliance of claim 1 , wherein the at least one heating element comprises a plurality of heating elements, wherein the lookup table comprises a plurality of unique lookup tables, and wherein each of the plurality of heating elements is associated with a unique lookup table of the plurality of unique lookup tables.

3 . The cooking appliance of claim 1 , wherein determining the power level of the at least one heating element comprises:

performing one or more equations based on the temperature setpoint and two or more known power levels to interpolate the power level.

4 . The cooking appliance of claim 1 , wherein the at least one heating element is directed at the determined power level for a predetermined length of time, the predetermined length of time being a duration of the preheating phase.

5 . The cooking appliance of claim 1 , wherein the preheating phase comprises at least a first stage having a first duration and a second stage having a second duration and performed after the first stage.

6 . The cooking appliance of claim 5 , wherein the determined power level of the at least one heating element comprises:

a first determined power level for the first stage; and

a second determined power level for the second stage, the second determined power level being different from the first determined power level.

7 . The cooking appliance of claim 6 , wherein initiating the preheating phase comprises:

directing the at least one heating element at the first determined power level for the first duration; and

directing the at least one heating element at the second determined power level for the second duration.

8 . A method of operating a cooking appliance, the cooking appliance comprising at least one heating element, the method comprising:

receiving a temperature setpoint for a cooking operation, the cooking operation comprising a preheating phase and a cooking phase;

determining a power level of the at least one heating element for the preheating phase based on the temperature setpoint, wherein determining the power level comprises retrieving the power level from a lookup table comprising a plurality of power levels; and

initiating the preheating phase by directing the at least one heating element according to the determined power level.

9 . The method of claim 8 , wherein the at least one heating element comprises a plurality of heating elements, wherein the lookup table comprises a plurality of unique lookup tables, and wherein each of the plurality of heating elements is associated with a unique lookup table of the plurality of unique lookup tables.

10 . The method of claim 8 , wherein determining the power level of the at least one heating element comprises:

performing one or more equations based on the temperature setpoint and two or more known power levels to interpolate the power level.

11 . The method of claim 8 , wherein the at least one heating element is directed at the determined power level for a predetermined length of time, the predetermined length of time being a duration of the preheating phase.

12 . The method of claim 8 , wherein the preheating phase comprises at least a first stage having a first duration and a second stage having a second duration and performed after the first stage.

13 . The method of claim 12 , wherein the determined power level of the at least one heating element comprises:

a first determined power level for the first stage; and

a second determined power level for the second stage, the second determined power level being different from the first determined power level.

14 . The method of claim 13 , wherein initiating the preheating phase comprises:

directing the at least one heating element at the first determined power level for the first duration; and

directing the at least one heating element at the second determined power level for the second duration.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 27, 2023
From: SANTANA, OMAR; KITIPONGPATANA, PIRAPAT
To: HAIER US APPLIANCE SOLUTIONS, INC.
Reel/Frame 063465/0354 →
Continuity (1)
Related Publication 20240361003A1 · Oct 31, 2024
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