KR19990039906A - Determination of Optimal Heating Time in Auto Cooking Mode of Microwave Oven - Google Patents

Abstract

The present invention relates to a method for determining an optimum heating time in an automatic cooking mode of a microwave oven, and more particularly, to a method for determining an optimum heating time for a microwave oven capable of optimal cooking with an optimum heating time during cooking operation for rice. It is about.

The optimal heating time determination security includes a first step of determining whether the microwave oven is in the automatic cooking mode, a second step of setting a voltage change amount based on the humidity change amount generated when properly heated, and the set voltage change amount being detected. And a third step of performing the primary heating until the fourth step of performing the secondary heating for a predetermined time regardless of the amount of rice when the set voltage change amount is detected.

Description

Determination of optimal heating time in automatic cooking mode of microwave oven.

The present invention relates to a method for determining an optimum heating time in an automatic cooking mode of a microwave oven, and more particularly, to a method for determining an optimum heating time for a microwave oven capable of optimal cooking with an optimum heating time during cooking operation for rice. It is about.

In automatic cooking using a conventional microwave sensor, the optimum heating time was determined as follows.

The container containing the ingredients of the cooking to be performed is placed in the cooking chamber, and heating is started to set the first heating time T1 until a change in humidity or gas detected by the heating chamber 1 increases by a constant value.

Then, the secondary heating time (T2 = K x T1) is set by multiplying the constant K according to the amount and type of food to the primary heating time.

Therefore, the optimal heating time until completion of any cooking is the time (T1 + KT2) obtained by adding the secondary heating time (T2 = K x T1) to the primary heating time (T1).

If the optimum heating time is determined by the conventional method when cooking rice, the second heating corresponding to steaming is made by setting the first heating time (T1) until the rice is boiled. The time was determined by multiplying the constant K by the primary heating time T1.

In the case of calculating the heating time as described above, since the first heating time T1 until the rice is boiled depends on the amount of rice, the second heating time determined by multiplying the constant by the first heating time ( T2) is also determined differently according to the first heating time.

However, when the amount of rice was changed using a microwave oven and cooked several times, as shown in Table 1 below, the steaming time, which is the second heating time, was the same regardless of the amount of rice. Where the amount of power is constant regardless of the amount of rice).

TABLE 1

Therefore, in the conventional microwave oven, although the second heating time corresponding to the steaming of the rice takes almost constant regardless of the amount of rice, the rice is unripe or grainy due to being determined by the first heating time. There was a problem of causing rice aging phenomenon such as spreading.

Accordingly, an object of the present invention is to provide a method for determining an optimum heating time in an automatic cooking mode of a microwave oven, which can set an optimal heating time by setting a second heating time in a microwave cooking mode.

1 is a block diagram showing a general microwave oven,

2 is an operation flowchart for determining an optimum heating time in the automatic cooking mode of the microwave oven according to the present invention.

3 is a waveform diagram showing the results of an experiment according to the present invention;

* Explanation of symbols for main parts of the drawings

1: cooking chamber 2: turntable

3: waveguide 4: suction port

5: sensor 6: turntable driving motor

7: magnetron 8: lamp

9 fan 11 drive unit

12: sensor signal processing unit 13: key input unit

14 control unit 15 outlet

16: fan motor

In order to achieve the above object, the optimum heating time determining method in the automatic cooking mode of the microwave oven according to the present invention comprises the first step of determining whether the automatic cooking mode of the microwave oven, and based on the amount of humidity change generated when properly heated A second step of setting the voltage change amount, a third step of performing the first heating until the set voltage change amount is detected, and performing the second heating for a predetermined time regardless of the amount of rice when the set voltage change amount is detected. It is characterized by comprising a fourth step.

In the automatic cooking mode of the microwave oven according to the present invention, the optimum heating time determining method sets the time until the sudden change of humidity occurs when cooking in the automatic mode as the first heating time, the second heating time is the Regardless of the amount, it is set to a certain time, and the value obtained by adding two heating times is determined as the optimum heating time.

In particular, in the automatic cooking mode of the microwave oven according to the present invention, the optimum heating time determining method sets the voltage change amount (dH) according to the amount of humidity generated when the heating range is appropriately determined in the determination range of the first heating time. Set the time until the voltage change amount is reached.

Hereinafter, a method for determining an optimum heating time in an automatic cooking mode of a microwave oven according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram showing a general microwave oven.

Looking at the configuration briefly, a key input unit 13 for inputting the actual key signal with a desired function with a plurality of keys, and the control unit 14 for inputting the key signal selected by the key input unit 13 to recognize what command And a driving unit 11 which is operated under the control of the control unit 14 and is driven to perform a function indicated by the control unit 14.

Therefore, the driving unit 11 controls the operation of the magnetron 7, the fan motor 16, the lamp 8, and the turntable driving motor 6 that generate microwave waves in the microwave oven. Although not shown in the present invention, in the microwave oven further comprising a heater as a heating means, the driving unit 11 controls the operation of the heater.

In the cooking chamber 1 of the microwave oven 18, a turntable 2 in which food containers are placed is formed, and an inlet 4 and an outlet 15 are formed at the side of the cooking chamber 1, and the outlet 15 is formed. ), A sensor 5 for detecting the humidity or temperature inside the cooking chamber 1 from the gas discharged from the inside of the cooking chamber 1 is mounted. The signal detected from the sensor 5 is applied to the control unit 14 through the sensor signal processing unit 12.

And 9 represents a fan, 3 represents a waveguide.

Next, an optimum heating time determination method in the automatic cooking mode of the microwave oven according to the above configuration will be described.

2 is an operation flowchart for determining an optimum heating time in the automatic cooking mode of the microwave oven according to the present invention.

When the rice is to be cooked by the automatic cooking in the microwave, the user selects the rice key from the key input unit 13 (step 101). The selected key signal is input to the controller 14, and by this signal, the controller 14 recognizes that the user wants to cook and controls the operation accordingly.

That is, the control unit 14 controls the drive unit 11 to control the heating operation of the microwave oven, and the magnetron 7 is driven by this control operation. On the other hand, at this time, the controller 14 recognizes the voltage change amount dH according to the amount of humidity in the heating chamber 1 detected from the sensor 5 when the rice is advanced to some extent at this stage.

When the amount of voltage change dH reaches the boiling point of the rice as a result of several experiments, the sensor 5 detects the amount of humidity in the heating chamber 1 and detects the detected amount of humidity in the sensor signal processing unit 12. If the amount of rice does not exist, it will take a predetermined time or more to reach this voltage change amount, and if the amount of rice is small, this voltage change amount will be reached within a predetermined time.

In the description of the present invention, the voltage change amount is set to 0.5 volts, and the voltage level for setting the primary heating time is set to 0.5 volts, and the results of the experiment are shown in FIG. 3.

Therefore, the controller 14 sets the voltage change amount dH based on the amount of humidity detected until the time when the rice, which is the first heating time, starts boiling in the cooking mode (step 103).

Then, the magnetron 7 is operated so that the cooking inside the cooking chamber 1 is heated, and this heating operation is performed until the voltage change amount dH set in step 103 is detected by the controller 14 (the Step 105). That is, since the amount of humidity detected by the sensor 5 is converted into a voltage signal by the sensor signal processing unit 12 and then applied to the control unit 14, the amount of voltage input from the control unit 14 in this step 103 is low. The heating operation continues until the set voltage is reached.

When the amount of voltage change set in the step 105 is detected by the sensor signal processing unit 12 through the sensor 5, the rice starts to boil, and the control unit 14 ends the first heating time therein. Step 107). The end of the first heating time in step 107 means stopping the heating operation by the highest output of the microwave oven.

Next, a second heating time for steaming rice is performed for 15 minutes regardless of the amount of rice at 50% of the output of the microwave oven (step 109). Then, the 15-minute moxibustion time is displayed on the display device (not shown).

That is, the control unit 14 controls the driving unit 11 to heat the magnetron 7 to the maximum during the first heating time, and outputs only 50% of the magnetron 7 to the driving unit 11 during the second heating time. Control to do so.

As described above, when the first heating time is set as the first heating time, and the second heating time is unconditionally set to 15 minutes until the voltage change amount that changes the humidity generated by the heating operation in the cooking mode to voltage becomes 0.5 volt. As in the prior art, it prevents the phenomenon of unripe or fattening or aging of rice.

And the results of the experiment of the present invention is shown in Table 2 below.

TABLE 2

In order to facilitate understanding of the contents in the description of the present invention, the cooking mode has been described as an example, and thus, the present invention is not limited thereto, and the voltage change amount and the secondary heating are similar to the cooking mode in the mode of automatic cooking of the microwave oven. Of course, this can be applied to all dishes that can be cooked with the appropriate time.

The voltage change amount will vary depending on the cooking mode, which may vary slightly depending on the characteristics of the microwave oven.

As described above, the method for determining the optimum heating time in the automatic cooking mode of the microwave oven according to the present invention is a method in which a conventional constant heating time is multiplied by a time until a sudden change of humidity occurs and a constant constant at this time. When the optimum heating time is determined by adding the time, it is intended to solve the problem that occurred in a particular dish.

For example, in the algorithm to cook rice by automatic cooking in the microwave, the first heating time is defined as the time when the rice starts to boil (the time required for the amount of change in humidity to reach a certain level). Tea heating time is set to a certain time regardless of the amount of rice has the effect that can provide a delicious rice to the consumer.

Claims (5)

A first step of determining whether the microwave is in an automatic cooking mode, a second step of setting a voltage change amount based on a humidity change amount generated when properly heated, and a first step of performing primary heating until the set voltage change amount is detected. And a third step of performing the second heating for a predetermined time regardless of the amount of rice when the set voltage change amount is detected, the optimum heating time determination method in the automatic cooking mode of the microwave oven. . 2. The optimum heating in the automatic cooking mode of the microwave oven according to claim 1, wherein the first heating in the third step is performed at 100% output and the second heating in the fourth step is performed at 50% output. Time decision method. The method according to claim 1 or 2, wherein the voltage change amount in the second step sets a voltage value detected at the time when the rice starts to be cut off. 4. The method of claim 3, wherein the amount of voltage change in the second step is set at 0.5 volts. 4. The method of claim 3, wherein the second heating for the fourth step is performed for 15 minutes.