OVEN AND METHOD FOR CONTROLLING THE SAME

• US 20150292749A1
• Filed: 03/18/2015
• Published: 10/15/2015
• Est. Priority Date: 04/14/2014
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: KIM, Seung-Hwan, LEE, Dong Ho
• Granted Patent: US 10,082,297 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A23L 5/10 General methods of cooking foods, e.g. by roasting or frying
• CPC Class Codes: A23V 2002/00 Food compositions, function of food ingredients or processes for food or foodstuffs
• CPC Class Codes: F24C 7/081 on stoves
• CPC Class Codes: F24C 7/085 on baking ovens
• CPC Class Codes: F24C 7/087 of electric circuits regulating heat

Abstract

An oven including a heater arranged in a cooking compartment, a temperature sensor to sense a temperature of the cooking compartment for a plurality of preset periods of time, and a controller to reset on/offtimes of the heater for at least one of the plurality of preset periods based on a preset target temperature and a current temperature and a previous temperature of the cooking compartment, sensed by the temperature sensor, and to control a driving of the heater according to the reset on/off times. By controlling the on/off times of the heater, a ripple phenomenon which occurs because the target temperature does not remain the same may be decreased. Thus, temperature differences may be reduced during cooking of food and, accordingly, cooking ability may be enhanced.

Claims

1. An oven comprising:

a heater arranged in a cooking compartment;

a temperature sensor to sense a temperature of the cooking compartment for a plurality of preset periods of time; and

a controller to reset on/off times of the heater for at least one of the plurality of preset periods based on a preset target temperature and a current temperature and a previous temperature of the cooking compartment, sensed by the temperature sensor, and to control a driving of the heater according to the reset on/off times.

2. The oven according to claim 1, wherein the controller controls the driving of the heater such that the heater is turned on until prior to a preheating completion time and resets the on/off times for a preset period of the plurality of preset periods after the preheating completion time of the heater.

3. The oven according to claim 1, wherein the current temperature is a temperature of the cooking compartment at a time at which a current preset period of the plurality of preset periods starts.

4. The oven according to claim 1, wherein the previous temperature is a temperature of the cooking compartment at a time at which a preset period previous to a current preset period of the plurality of preset periods starts.

5. The oven according to claim 1, further comprising a storage unit to store the on/off times of the heater preset according to temperature differences.

6. The oven according to claim 5, wherein the controller extracts the on/off times of the heater stored in the storage unit, based on a difference between the preset target temperature and a temperature of the cooking compartment at a preheating completion time.

7. The oven according to claim 6, wherein the controller calculates an increase or a decrease of the on/off times of the heater based on the preset target temperature, the current temperature, and the previous temperature.

8. The oven according to claim 6, wherein the controller calculates a first increase or decrease of the on/off times of the heater by comparing the preset target temperature and the current temperature.

9. The oven according to claim 8, wherein the controller calculates the first increase or decrease of the on/off times so that, for a period at which the current temperature exceeds the preset target temperature, the on time of the heater decreases and the off time of the heater increases.

10. The oven according to claim 8, wherein the controller calculates the first increase or decrease of the on/off times so that, for a period at which the current temperature is lower than the preset target temperature, the on time of the heater increases and the off time of the heater decreases.

11. The oven according to claim 8, wherein the controller calculates a second increase or decrease of the on/off times of the heater by comparing the current temperature and the previous temperature.

12. The oven according to claim 11, wherein the controller calculates the second increase or decrease of the on/off times for a period of time at which the current temperature and the previous temperature are identical, through comparison between the preset target temperature and the current temperature.

13. The oven according to claim 11, wherein the controller calculates the second increase or decrease of the on/off times so that, for a period of time at which the current temperature exceeds the previous temperature, the on time of the heater decreases and the off time of the heater increases.

14. The oven according to claim 11, wherein the controller calculates the second increase or decrease of on/off times so that, for a period of time at which the current temperature is lower than the previous temperature, the on time of the heater increases and the off time of the heater decreases.

15. The oven according to claim 7, wherein the controller resets the on/off times of the heater by accumulating the calculated increase or decrease of the on/off times of the heater to the extracted on/off times.

16. The oven according to claim 1, wherein the controller adjusts an interval or frequency of the at least one of the plurality of preset periods.

17. An oven comprising:

a heater installed inside a cooking compartment;

a temperature sensor to sense a temperature of the cooking compartment;

an input unit through which a target temperature of the cooking compartment is input; and

a controller to control the heater to be turned on until the temperature of the cooking compartment reaches a preheating temperature and to control on/off operations of the heater based on the target temperature and the temperature of the cooking compartment after the temperature of the cooking compartment reaches the preheating temperature, when the target temperature is input.

18. The oven according to claim 17, wherein the controller controls the on/off operations of the heater so that the temperature of the cooking compartment converges to the target temperature.

19. The oven according to claim 17, wherein the controller periodically sets on/off times of the heater and controls driving of the heater according to the set on/off times.

20. A method of controlling an oven, the method comprising:

sensing a temperature of a cooking compartment for a plurality of preset periods of time, the sensing being performed by a temperature sensor;

resetting on/off times of a heater for at least one of the plurality of preset periods based on a preset target temperature and a current temperature and a previous temperature of the cooking compartment, sensed by the temperature sensor; and

controlling a driving of the heater according to the reset on/off times.