KR19980017925A - Cooking temperature control method of electric rice cooker - Google Patents

Abstract

The present invention relates to a method of controlling the cooking temperature of the electric insulation rice cooker for automatically controlling the cooking temperature by the value set at the time of cooking with the electric insulation rice cooker, maintaining boiling of the cooking process when cooking a small amount of rice with the electric insulation rice cooker Due to the short heating time in the process, the temperature rises rapidly and the cooking temperature cannot be lowered at the cooking completion temperature (e.g. 125 ℃). In order to solve the problem, the cooked temperature is changed according to the cooking amount by the set program, and the temperature rises during cooking, so that the temperature cannot be stopped based on the cooking completion temperature and the rice burns due to latent heat. In case of abnormality during cooking, the cooking temperature is lowered to secure the stability of electric rice cooker. It is possible to prevent damage from occurring.

Description

Cooking temperature control method of electric rice cooker

The present invention relates to an electric insulation rice cooker, and more particularly, to control the cooking temperature by the value set at the time of cooking with the electric insulation rice cooker to prevent the burning phenomenon due to latent heat in order to secure the stability of the electric insulation rice cooker. It relates to a cooking temperature control method of the electric heat cooker for.

As is well known, the electric thermal rice cooker is provided with the operating conditions for each process according to the respective contents, which is the process is started according to each cooking key operation after the first state that the inner pot is seated is sensed.

The general electric rice cooker, as shown in the block diagram shown in Figure 1, the key input unit 12 consisting of a key for setting the various operating environment of the electric rice cooker having a cooking function and the warming function, and the bottom and body of the electric rice cooker And a sensing unit 14 installed on the lid and detecting a temperature generated by various heaters by a sensor, and a temperature value detected by a key input of the key input unit 12 and a temperature sensor. A microprocessor 10 for controlling the operation, and various heater driving units 16 installed at the bottom and the lid and the body of the electric thermal cooker and operating under the control of the microprocessor 10 to heat the inside of the electric thermal cooker; It is configured to include a display unit 18 for displaying the operating state of the electric rice cooker.

Referring to the electric insulation rice cooker in more detail by referring to FIG. 3, the microprocessor 10 built in the electric insulation rice cooker maintains the standby state when the operation power is supplied (S301), and determines whether various cooking modes are set by key input. It determines (S302).

As a result of the determination, if the cooking mode (refers to Jinbap, Donbap, Ordinary rice, Mixed grain rice, brown rice, etc.) is not set, the standby state is continuously maintained (S301), and when the cooking mode is set, cooking of the heater driving unit 16 The heater, the lid heater and the body heater are operated to execute the set cooking mode (S03).

That is, it is determined whether cooking is complete by controlling the operation time or operating temperature of the cooking heater of the heater driving unit 16, the lid heater, and the body heater according to each cooking mode to perform the cooking mode (S304).

If the cooking operation is not terminated, the microprocessor 10 continues to execute the cooking mode (S303). When the operation of the set cooking mode is terminated, the cooking heater and the lid heater of the heater driving unit 16 are finished. And blocking the operation power supplied to the body heater (S305), and performing an insulation function while detecting an internal temperature of the electric thermal cooker detected by the cooking temperature sensor of the sensing unit 14 (S306) at a predetermined temperature (for example, 75). It is determined whether it is lower than (° C.) (S307).

As a result, when the internal temperature of the electric insulation rice cooker is higher than a predetermined temperature (eg 75 ° C.), the internal temperature of the electric insulation rice cooker is detected again (S306), and the internal temperature of the electric insulation rice cooker is a constant temperature (eg 75 ° C.). If lower than), the various heaters of the heater driving unit 16 are operated (S308) to increase the internal temperature of the electric thermal cooker.

Therefore, since the internal temperature of the electric rice cooker maintains a certain temperature (eg 75 ℃), it is possible to heat the rice stored inside.

Referring to the cooking process of the electric insulation rice cooker in more detail by FIG. 2, first, when the operation mode of the electric insulation rice cooker is set to the cooking mode, supply operation power to the cooking heater and lid heater and body heater of the heater driving unit 16; In this case, the internal temperature is increased by increasing the internal temperature while absorbing water into the rice inside (T1) for a certain time (about 10 to 11 minutes). Increase to).

After the absorption step (T1) is completed, the first heating step (T2) to determine the cooking amount while raising the interior to a predetermined temperature (for example, 75 ℃) to determine the amount of rice contained in the interior, and then The heating process is terminated by performing a second heating process T3 which distributes the heat quantity based on the cooking quantity determined in the first heating process T2 and raises the internal temperature to a predetermined temperature (eg, 102 ° C.).

The second heating step (T3) is extended to heat the inside to perform a boiling maintenance step (T4) for heating the inside so that the internal temperature rises to the cooking temperature (for example, 130 ℃).

After each process is completed, the cooking process is finished and the process is switched to the next process while performing the steaming process (T5) which heats the cooked rice to a predetermined temperature (about 115 minutes) for a predetermined time (about 12 minutes). do.

However, the above-mentioned conventional electric insulation rice cooker, the heating time is short in the boiling maintenance process of the cooking process, especially when cooking a small amount of rice when cooking with the electric heating rice cooker temperature rises rapidly (eg 125 ℃) Because of the latent heat in the rice could not stop because the phenomenon occurred.

In addition, when an abnormality such as the phenomenon of burning of rice during cooking did not lower the cooking completion temperature was a problem that the electric insulation rice cooker is easily broken.

An object of the present invention for eliminating the above-mentioned shortcomings is to provide a method of controlling the cooking temperature by the value set at the time of cooking with an electric heat cooker.

Another object of the present invention is to prevent the phenomenon of burning rice by latent heat without stopping the temperature based on the cooking completion temperature due to the rapid rise.

Another object of the present invention is to ensure the stability of the electric insulation rice cooker by lowering the cooking completion temperature at the time of abnormal occurrence during cooking.

In order to achieve the above objects, the present invention is characterized in that it is possible to automatically control the cooking temperature by the value set at the time of cooking with an electric heat cooker.

1 is a block diagram showing a conventional general electric rice cooker.

Figure 2 is a graph showing the cooking process of a general electric rice cooker.

Figure 3 is a flow chart showing a general electric rice cooker operating state of FIG.

Figure 4 is a flow chart according to the cooking temperature control method of the electric thermal rice cooker for solving the present invention.

Explanation of symbols on the main parts of the drawings

10 microprocessor 12 key input unit

14 detection unit 16 heater driving unit

18: display portion T1: absorption process

T2: First Heating Process T3: Second Heating Process

T4: Boiling process T5: Moxibustion process

Electric insulation rice cooker according to an embodiment of the present invention is composed of a key input unit for inputting cooking data, a sensing unit having various sensors, a heater driving unit for heating each unit, a display unit and the like.

Figure 4 is a flow chart according to the cooking temperature control method of the electric thermal rice cooker for solving the present invention, by controlling the operation of each heater by a key input or input of each sensor to adjust the internal temperature of the electric thermal rice cooker to a certain temperature (eg 45 A soaking process for soaking the absorbed rice by heating to a predetermined temperature (for example, 75 ° C.) and a second heating for heating the internal temperature to a predetermined temperature (eg 102 ° C.) In performing the cooking process (S401), which is a boiling-holding step of heating the inside so that the process and the internal temperature are raised to the cooking completion temperature (eg, 130 ° C.), the cooking temperature is a constant temperature during the cooking process (S401). Example: check whether it is 110 ℃ (S402), and if the predetermined temperature (eg 110 ℃) is confirmed in step S402 proceeds to the normal cooking mode (S409), a constant temperature (eg 110 ℃) is If not confirmed step (S403) and the step of checking the cooking time (S403) If the cooking time is checked in step S404 of checking whether the cooking temperature is a constant temperature (eg, 120 ° C.), and as a result of the check in step S404, when the cooking temperature is determined to be a constant temperature (eg, 120 ° C.), In the cooking mode (S409), if the cooking temperature is not confirmed as a constant temperature (eg 120 ℃) comparing the checked cooking time with the memorized cooking time (S405), the cooking checked in step (S405) Checking whether the time comparison time is a predetermined time (eg, 30 seconds) or more (S406), and if the result confirmed in step S406 is a predetermined time (eg 30 seconds) or more, proceed with the normal cooking mode (S409) And, if a certain time (for example 30 seconds) or less, the cooking completion temperature is changed (for example, 125 ℃ 120 ℃) is shown to be made of the step (S407) to switch to the steaming process (S408).

In order to control the cooking temperature at the time of cooking with the electric heat cooker according to the present invention, when the cooker sets the cooking function by first operating the key input unit 12, the control of the electric heat cooker by the control of the microprocessor 10 that recognizes this While supplying operating power to each heater of the heater driving unit 16 installed on the bottom, the body and the lid, the microprocessor 10 not only inputs the key through the key input unit 12 but also the bottom and body of the electric thermal cooker. And by controlling the operating power supplied to the heater installed on the bottom and the body and the lid of the electric insulation rice cooker according to the temperature value detected by each temperature sensor of the sensing unit 11 installed in the lid electric insulation rice cooker It will be able to perform cooking functions.

Looking at the present invention as described above in detail based on Figure 4 as follows.

When the cooking preparation process is completed and the operating power is turned on, the microprocessor 10 built in the electric warming rice cooker uses the internal temperature of the electric warming rice cooker to a predetermined temperature (eg, 45) by each heater of the heater driving unit 13. First heating for heating the internal temperature of the electric thermal cooker to a predetermined temperature (for example, 75 ° C.) by performing a soaking process for soaking the absorbed rice by heating to a predetermined temperature (° C.). Perform the process.

When the first heating process is completed, the microprocessor 10 drives the respective heaters of the heater driving unit 13 to perform a second heating process of heating the internal temperature of the electric thermal cooker to a predetermined temperature (eg, 102 ° C.). By performing the boiling maintenance process to heat the interior so that the internal temperature is raised to the cooking completion temperature (eg 130 ℃) to perform the cooking process (S401).

During the cooking process (S401), the microprocessor 10 checks whether the cooking temperature inside the electric cooker detected by the temperature sensor of the sensing unit 14 is a predetermined temperature (eg, 110 ° C.) (S402).

When the predetermined temperature (eg 110 ° C.) is confirmed as the result of the checking, the microprocessor 10 heats each heater of the heater driving unit 16 to proceed with the normal cooking mode (S409).

However, if a predetermined temperature (eg 110 ° C.) is not confirmed, the microprocessor 10 checks the cooking time set in the internal timer (S403) to determine the cooking temperature inside the electric rice cooker detected by the temperature sensor of the detector 14. Check whether it is a certain temperature (eg 120 ℃) (S404).

That is, when the cooking temperature is confirmed to be a constant temperature (eg, 120 ° C.), the microprocessor 10 heats each heater of the heater driving unit 16 to proceed with the normal cooking mode (S409), and the cooking temperature is a constant temperature ( For example, the microprocessor 10 compares the current cooking time checked by the timer with the cooking time stored in the internal memory (S405).

When it is confirmed that the compared time is a predetermined time (for example, 30 seconds) or more (S406) or more than a predetermined time (for example, 30 seconds), the microprocessor 10 heats each of the heaters of the heater driver 16. Proceed to the normal cooking mode (S409).

However, as a result of checking the compared data, if the predetermined time (for example, 30 seconds) or less, the microprocessor 10 changes the cooking completion temperature from 125 ° C to 120 ° C by the set program as an example (S407).

Accordingly, when the changed cooking completion temperature is changed to 120 ° C., the microprocessor 10 converts from the cooking process to the moxibustion process (S408).

As described above, the present invention provides a method of controlling the cooking temperature according to a value set at the time of cooking with an electric heat cooker to automatically change the cooking completion temperature according to the cooking amount, based on the cooking completion temperature due to the rapid rise in temperature. It is possible to prevent the burning of rice by latent heat because it can not stop, and to reduce the cooking temperature when cooking abnormality occurs to ensure the stability of the electric rice cooker to prevent the damage of the device in advance.

The present invention has been described only with respect to one embodiment of a method for controlling the cooking temperature of the electric thermal cooker as described in the claims, but the present invention is not limited thereto and its application and modification will be possible in various ways. .

Claims (3)

Control of the operation of each heater by key input or input of each sensor to heat the internal temperature of the electric rice cooker to a certain temperature, so that a soaking process is called to absorb the absorbed rice and the first heating process to heat the internal temperature to a certain temperature In performing the cooking process (S401) of the second heating process for heating the temperature to a constant temperature and the boiling maintenance process for heating the interior so that the internal temperature is raised to the cooking completion temperature, cooking temperature during the cooking process (S401) Step (S402) to check whether the constant temperature is, and if the constant temperature is confirmed normal cooking mode (S409), if the constant temperature is not confirmed, checking the cooking time (S403), and when the cooking time is checked Checking whether the cooking temperature is a constant temperature (S404), and when the cooking temperature is confirmed as a constant temperature proceeds to the normal cooking mode (S409), if the cooking temperature is not confirmed as a constant temperature Comparing the checked cooking time with the memorized cooking time (S405), and checking whether the compared cooking time is more than a predetermined time (S406), and if the result is more than a predetermined time proceeds to the normal cooking mode (S409) And, if the identified cooking time is less than a predetermined time, the cooking temperature control method of the electric thermal rice cooker comprising the step (S407) of changing the cooking temperature to the steaming step (S408). The method according to claim 1, wherein the time for checking whether the cooking time compared in the step S405 is a predetermined time or more is set to 30 seconds. The method according to claim 1, wherein the cooking temperature is changed from 125 ° C to 120 ° C when the cooking time determined in step S406 is less than or equal to a predetermined time.