Heating cooker

Abstract

The invention provides a heating cooker capable of improving boiling detection precision of a cooked object. A microwave oven according to the present invention comprises: a cooking chamber in which an object to be cooked containing a liquid is housed; a microwave heating unit for microwave-heating an object to be cooked; an automatic microwave cooking control unit for controlling the microwave heating unit; an in-box temperature detection means for detecting the in-box temperature of the cooking chamber; and an object-to-be-cooked temperature detection means for detecting the temperature by receiving infrared rays in the cooking chamber at the infrared detection element, the automatic microwave cooking control unit determining that the object to be cooked is boiling when a first condition is satisfied, or determining that the object to be cooked is boiling based on a second condition, the first condition is that the rate of increase in the temperature detected by the in-box temperature detection means is equal to or greater than a first threshold value, and the second condition is that the rate of increase in the temperature detected by the cooking object temperature detection means per unit time is equal to or less than the value of (maximum increase amount * C).

Claims

1. A heating cooker, characterized in that: have: A cooking chamber for storing food to be cooked containing liquid; A microwave heating unit for performing microwave heating on the food to be cooked; A control unit, controlling the microwave heating unit; A first temperature detection unit, detecting the temperature inside the cooking chamber; as well as The second temperature detection unit detects the temperature by receiving infrared rays in the cooking chamber. The control unit determines that the food is boiling when a first condition is satisfied, or determines that the food is boiling based on a second condition, The first condition is that the amount of increase per unit time of the temperature detected by the first temperature detection unit is greater than or equal to a first threshold value, The second condition is that the amount of increase per unit time of the temperature detected by the second temperature detection means is equal to or less than a second threshold value.

2. The heating cooker according to claim 1, characterized in that: The control unit determines that the food is boiling when the first condition is satisfied, or when the second condition and the third condition are satisfied. The third condition is that the increase amount per unit time of the first temperature detection means is equal to or greater than a third threshold value.

3. The heating cooker according to claim 1 or 2, characterized in that: The control unit repeatedly calculates the amount of increase per unit time of the temperature detected by the first temperature detection unit, and determines that the food is boiling when the first condition is satisfied.

4. The heating cooker according to claim 2, characterized in that: The control unit repeatedly calculates the amount of increase per unit time of the detected temperature of the second temperature detection unit, The second threshold value is determined based on a maximum increase amount among increases per unit time of the detected temperature of the second temperature detection unit.

5. The heating cooker according to claim 4, characterized in that: The amount of increase per unit time of the temperature detected by the first temperature detection unit is repeatedly calculated.

6. The heating cooker according to claim 2, characterized in that: The first threshold is greater than the third threshold.

7. The heating cooker according to claim 5, characterized in that: The second condition is satisfied when the amount of increase per unit time of the detected temperature of the second temperature detection unit is less than or equal to the second threshold value for a plurality of consecutive times. The third condition is satisfied when the amount of increase per unit time of the temperature detected by the first temperature detection unit is equal to or greater than the third threshold value a plurality of times in a row.

8. A heating cooker, characterized in that: have: A cooking chamber for storing food to be cooked containing liquid; A microwave heating unit for performing microwave heating on the food to be cooked; A control unit, controlling the microwave heating unit; A first temperature detection unit, detecting the temperature inside the cooking chamber; as well as The second temperature detection unit detects the temperature by receiving infrared rays in the cooking chamber. When the amount of increase per unit time of the detected temperature of the first temperature detection unit satisfies the first condition, or When the amount of increase per unit time of the detected temperature of the second temperature detection unit satisfies the second condition and the amount of increase per unit time of the first temperature detection unit satisfies the third condition, or When the temperature detected by the second temperature detection unit is equal to or higher than a fourth threshold, The control unit determines that the food to be cooked is boiling.

9. A heating cooker, characterized in that: have: A cooking chamber for storing food to be cooked containing liquid; A microwave heating unit for performing microwave heating on the food to be cooked; A control unit, controlling the microwave heating unit; A first temperature detection unit, detecting the temperature inside the cooking chamber; as well as The second temperature detection unit detects the temperature by receiving infrared rays in the cooking chamber. When the amount of increase per unit time of the detected temperature of the first temperature detection unit satisfies the first condition, or When the amount of increase per unit time of the detected temperature of the second temperature detection unit satisfies the second condition and the amount of increase per unit time of the first temperature detection unit satisfies the third condition, or When the temperature detected by the second temperature detection unit is equal to or higher than a fourth threshold, or When a predetermined time has passed after the microwave heating is started, The control unit determines that the food to be cooked is boiling.

10. The heating cooker according to any one of claims 1, 2, 4 to 9, characterized in that: When the control unit determines that the food is boiling, the control unit changes the control of the microwave heating unit and determines the remaining time until the microwave heating is finished.

11. The heating cooker according to any one of claims 1, 2, 4 to 9, characterized in that: The food to be cooked corresponds to a cooking menu that specifies heating and cooking in a state of being wrapped in a food wrapping film.

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