KR100197071B1 - Electric pressure rice cooker - Google Patents

Abstract

The present invention relates to a white rice cooking method of the electric pressure thermostat rice cooker, in particular, the main heater 34 mounted on the base of the electric pressure thermostat rice cooker, and the auxiliary heater 36 mounted on the body and the lid, respectively, to set the white rice Preheating step 200 for preheating to a predetermined time and the set temperature, and heating step of rapidly heating the preheated main heater 34 and auxiliary heater 36 to calculate the cooking temperature according to the cooking amount and the cooking amount (300) ), The power control process 400 for controlling the power of the main heater 34 and the auxiliary heater 36 to the calculated cooking temperature, and when the cooking temperature is reached, the main heater 34 is turned off and the auxiliary heater ( Moxibustion to steam the cooked rice by using only 36) process 500, and when the moxibustion process is completed, turn off the auxiliary heater 36 and drive the valve 38 mounted on the lid to reduce the internal pressure of the cooker When the pressure removal process 600 to remove, and the internal pressure of the rice cooker is removed, only the auxiliary heater 36 Since it comprises a thermal insulation process 700 for maintaining the cooked white rice at a constant temperature by driving, the heating temperature and the heating time of the main heater 34 and the auxiliary heater 36 built in the electric pressure heating rice cooker according to the cooking amount Not only can the rice be cooked in the most ideal state, but also the cooked rice can be kept in an optimal state.

Description

White rice cooking method of electric pressure rice cooker

The present invention relates to a white rice cooking method of the electric pressure thermal rice cooker, and in particular, preheating the main heater and auxiliary heater built in the electric pressure thermal rice cooker and controlling the power to change the heating temperature and heating time according to the amount of cooking rice The present invention relates to a white rice cooking method of an electric pressure thermal cooker that not only cooks in an ideal state but also keeps cooked rice in an optimal state.

In general, a pressure cooker is a cooking apparatus used to cook food such as rice by using a pressure obtained by the thermal power of a fuel such as gas, or a conventional pressure cooker does not have a thermal insulation function to maintain the cooked rice to keep warm In order to use a separate thermal insulation bin was inconvenient.

In order to solve this drawback, in recent years, an electric pressure heating rice cooker which combines cooking and heat keeping is provided. In addition, the base has a built-in electric heater for heating food.

However, the conventional electric pressure thermal rice cooker as described above is a problem that does not cook the rice in the most ideal state by cooking the white rice by heating the heat transfer heater mounted on the base at a predetermined cooking temperature according to the cooking amount. there was. That is, although the amount and ratio of white rice and rice are different for each cooker, there is a problem in that the best rice taste cannot be obtained by heating the white rice at a preset cooking temperature.

In addition, the cooking of white rice using only one large-capacity electric heater mounted on the base, there is a problem that the heat generated from the electric heater does not spread evenly to the food does not cook the rice in the ideal state.

Accordingly, the present invention has been made to solve the above problems, in the white rice cooking method applied to the electric pressure thermal rice cooker having a main heater mounted on the base, and an auxiliary heater mounted on the body and the lid, respectively, A preheating step of driving the main heater and the auxiliary heater to preheat the set temperature for the set time, and a heating step of rapidly heating the preheated main heater and the auxiliary heater and calculating the cooking end temperature according to the cooking quantity and the cooking quantity; A power control heating step of controlling the power of the main heater and the auxiliary heater to the cooking end temperature calculated in the heating step; and when the heating temperature of the main heater and the auxiliary heater reaches the cooking end temperature in the power control step, Moxibustion process to turn off the cooked white rice using only the auxiliary heater off, and when the moxibustion process is finished, turn off the auxiliary heater and put on the lid It is provided with a pressure removing step of removing the internal pressure of the rice cooker by driving the valve and a heat keeping step of keeping the cooked rice at a constant temperature by driving only the auxiliary heater when the internal pressure of the rice cooker is removed in the pressure removing step. It features.

1 is a view schematically showing the configuration of an electric pressure thermal rice cooker to which the present invention is applied;

2 is a flow chart showing the overall control flow of the white rice cooking method according to the present invention;

3 is a flow chart showing a detailed control flow of the preheating process of FIG.

4 is a flow chart showing a detailed control flow of the second heating process of FIG.

5 is a flowchart showing a detailed control flow of the power control process of FIG.

FIG. 6 is a flow chart showing the detailed control flow of the process of FIG.

7 is a view showing the relationship between the cooking time and the heater temperature during cooking rice;

8 is a flow chart showing a detailed control flow of the moxibustion process of FIG.

Explanation of symbols on the main parts of the drawings

10 transformer 12 rectifier

14 constant voltage unit 16 temperature detection unit

18: voltage detection unit 20: power failure detection unit

22: door open and close detection unit 24: control unit

26: operation panel 28: main heater drive unit

30: auxiliary heater driving unit 32: solenoid driving unit

34: main heater 36: auxiliary heater

38: valve

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view schematically showing the configuration of the electric pressure thermal cooker to which the present invention is applied, and an operation panel 26 for the user to control the operation of the pressure cooker is connected to the input terminal IN1 of the controller 24. The commercial power supply Vcc, which is reduced to a low voltage by the transformer 10 and the rectifier 20 and converted into a DC voltage, is supplied to the power input terminal VDD of the controller 24 through the constant voltage unit 14.

On the other hand, the electrostatic detection unit 20 and the voltage detection unit 16 for detecting the occurrence of the power failure and the magnitude change of the voltage through the DC voltage output from the rectifier 12, the input terminal (IN2, IN3) of the control unit 24 Respectively connected to the main heater driving unit 28 for driving the main heater 34 mounted on the base of the pressure cooker and to the side and the lid of the pressure cooker body, respectively, at the output terminals OUT1 and OUT2 of the control unit 24. The auxiliary heater driver 30 for driving the auxiliary heater 36 is connected to each other.

In addition, the temperature detecting unit 16 for detecting the heating temperature by the main heater 34 and the auxiliary heater 36 is connected to the input terminal IN4 of the control unit 24, and detects the open / closed state of the pressure cooker lid. The door open / close detection unit 22 is connected to the input terminal IN5 of the control unit 24.

Unexplained symbol TH is a thermistor, SW is a door switch, and R1 to R3 each represent a resistance.

Next, the most ideal cooking method for cooking white rice using the electric pressure thermal cooker configured as described above will be described in detail with reference to FIGS.

Figure 2 is a flow chart showing the overall control flow of the white rice cooking method according to the invention, Figure 3 is a flow chart showing a detailed control flow of the preheating process of Figure 2, Figure 4 shows a detailed control flow of the heating process of Figure 2 5 is a flowchart illustrating a detailed flow of the power control process of FIG. 2, FIG. 6 is a flowchart illustrating a detailed control flow of the process of FIG. 2, and FIG. 7 is a cooking time and a heater temperature when cooking rice. Is a diagram showing the relationship between.

As shown in Figure 2 and 3, when the user puts the well-washed white rice into the electric pressure thermal cooker and select the white rice cooking course through the operation panel (100), the control unit 24 is a preheating process 200 The control signal is output to the output terminals OUT1 and OUT2 for driving the main heater 34 and the auxiliary heater 36 to maintain the temperature at 51 ° C. by counting the end time of 6 minutes (201). Accordingly, the main heater driver 28 and the auxiliary heater driver 30 are driven by applying power to the main heater 34 and the auxiliary heater 38 (202). At this time, full power is applied to the main heater 34, and power is applied to the auxiliary heater 36 mounted on the body and the lid at 20/30 current and 15/30 current rates, respectively, to preheat the white rice. do.

On the other hand, when the main heater 34 and the auxiliary heater 38 is driven as described above and the heating temperature by the main heater 34 and the auxiliary heater 36 detected by the temperature detector 16 reaches 90 ° C ( 203), the control unit 24 performs a process of calculating the cooking temperature according to the cooking amount and the cooking amount by applying the fuzzy function to the time and power amount data it takes to increase the preheating temperature from 90 ℃ to 120 ℃ (205)

As described above, the control unit 24 calculates the cooking amount and the cooking end temperature, and when the preheating temperature of the main heater 34 and the auxiliary heater 36 reaches 120 ° C. or the preheating process time ends while the white rice is heated ( 203 and 205, the control unit 24 is to perform a heating step 300 for heating the white rice up to the cooking end temperature calculated in the preheating step 200.

That is, as shown in Figure 4, the control unit 24 sets the cooking end time to heat the white rice up to the cooking end temperature 123 ℃ calculated in the preheating step 200 (301) of the heating step 300 40 minutes, the end time is counted, and the white rice is heated (303). At this time, full power is applied to the main heater 34 as in the preheating process 200. However, the auxiliary heater 36 mounted on the body and the lid has a 20/30 current flow rate and a 15/30 current flow rate, respectively. Power is applied (302).

When the heating temperature by the main heater 34 and the auxiliary heater 36 reaches the cooking end temperature or the heating process time ends (304,305) during the heating process 300, the control unit as shown in FIG. 24 sets a power control process time 25 minutes (401), and controls the power source to the main heater and the auxiliary heater 36 at a power supply rate of 10/30 and a power supply rate of 15/30, respectively (402). Then, it is determined whether the count end time 25 minutes has elapsed (403), and whether the cooking end temperature has reached 132 ° C (404, 405), and when the power control process (400) is completed, the control unit 24 as shown in FIG. ) Counts 12 minutes, which is the end time of the moxibustion process (501), cuts off the power applied to the main heater 36 (502), and the auxiliary heater 36 mounted on the body and the lid at a 24/30 current flow rate. By applying power (503), the moxibustion of steaming the heated rice through the preheating process 200, the heating process 300, and the power control process 400 is performed.

On the other hand, when 12 minutes, the end time of the moxibustion process 500 elapses (504), the control unit 24 cuts off the power applied to the auxiliary heater 36 and removes the pressure to remove the internal pressure of the pressure cooker for safety Process 600 will be performed. That is, when the control unit 24 outputs a control signal to the output terminal OUT3, the solenoid driving unit 32 drives the valve 38 mounted on the lid to remove the internal pressure of the pressure cooker for about 6 minutes.

When the internal pressure of the pressure cooker is removed as described above, the controller 24 drives the auxiliary heater 36 mounted on the body and the lid of the pressure cooker to perform the warming process 700 for keeping the cooked rice warm. . At this time, the controller 24 changes the magnitude of the voltage applied to the auxiliary heater 36 according to the magnitude change of the voltage detected by the voltage sensing unit 18 so that a voltage having a constant magnitude is always applied to the auxiliary heater 36. do. Therefore, the cooked rice is kept warm at a constant temperature, and when the valve 38 mounted on the lid every 30 seconds to 2 minutes to remove the internal pressure of the pressure cooker generated by the drive of the auxiliary heater (36). have.

7 is a view showing the relationship between the cooking time and the heater temperature of the white rice obtained when cooking the white rice through the above process.

On the other hand, when cooking the new rice, generally follow the process of the white rice cooking method as described above, but as the moxibustion process as shown in Figure 7 can be obtained a more delicious rice taste.

That is, when the heating temperature by the main heater 34 and the auxiliary heater 36 reaches the cooking end temperature calculated in the preheating process 200 and the preheating process 300 is finished, the control unit 24 performs the moxibustion process. 12 minutes, the end time of the counting (701) and the power applied to the main heater 36 is cut off (702), the auxiliary heater 36 mounted on the body and the lid is applied to the power at 24/30 current The moxibustion of moxibustion of the heated rice through the preheating process 200 and the heating process 300 is performed.

When 5 minutes have elapsed while the moxibustion process is performed, the controller 24 drives the main heater 34 for about 1 minute to heat the white rice, and after 12 minutes, the end time of the moxibustion process, the pressure elimination is performed. The process is performed (704-708).

As described above, the present invention can be cooked in the most ideal state by varying the exothermic temperature and the exothermic time of the main heater and auxiliary heater built in the electric pressure thermal cooker according to the cooking amount, and also applied to the pressure cooker By varying the size of the power applied to the auxiliary heater in accordance with the size change of the power source is to be always applied to the auxiliary heater of a constant size can keep the cooked rice at a constant temperature.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and other various embodiments are possible. Therefore, the true technical protection scope of the present invention should be defined only by the appended claims.

The purpose of the present invention is to preheat the main heater and auxiliary heater built in the electric pressure insulation rice cooker according to the cooking amount and to control the power, so that the white rice is cooked in the most ideal state by controlling the smoke temperature and heat generation time To provide a cooking method.

Claims (10)

In the rice cooking method applied to the electric pressure thermal rice cooker having a main heater 34 mounted on the base and an auxiliary heater 36 mounted on the body and the lid, respectively, The preheating step 200 of driving the main heater 34 and the auxiliary heater 36 to rapidly heat white rice and calculating the cooking end temperature according to the cooking amount and the cooking amount, and to the cooking end temperature calculated in the preheating process. The heating step 300 for heating the white rice by heating the main heater 34 and the auxiliary heater 36, and after the heating time of the main heater 34 and the auxiliary heater 36 in the heating step 300 is finished The power control process 400 for controlling the cooking temperature end temperature and the end time, and when the heating temperature of the main heater 34 and the auxiliary heater 36 reaches the cooking end temperature in the heating process, the main heater 34 is turned off. Moxibustion process to steam the cooked white rice using only the auxiliary heater 36, and when the moxibustion process is completed, turn off the auxiliary heater 36 and drive the valve 38 mounted on the lid Pressure elimination process 600 for removing the internal pressure of the rice cooker, the internal pressure of the rice cooker is removed in the pressure elimination process When the auxiliary heater 36 is driven only to maintain the cooked rice at a predetermined temperature to maintain the cooked white rice electric rice heat cooking rice, characterized in that it comprises a thermal rice cooker. The method of claim 1, The preheating process 200 counts the preheating process time and drives the main heater 34 and the auxiliary heater 36 to preheat the white rice, and the main heater driven in the first process. (34) and the second process (203) for calculating the cooking quantity and the cooking end temperature through the time and power amount data until the preheating temperature when the heating temperature by the auxiliary heater 36, and the main during the second process When the heating temperature by the heater 34 and the auxiliary heater 36 is reached or when the preheating process time is finished, the third cooking process (204, 205) is terminated. . The method of claim 2, The first process is to apply a full power to the main heater 34, and to the auxiliary heater 36 mounted on the body and the lid at 15/30 current and 18/30 current, respectively White rice cooking method of electric pressure thermal cooker, characterized in that. The method of claim 1, The heating process 300 counts the heating process time and drives the main heater 34 and the auxiliary heater 36 to rapidly heat the white rice, and the main heater driven in the first process ( 34) and the second step (303, 304) of calculating the cooking amount and the cooking end temperature through the time and power data it takes to rise to the heating temperature when reaching the heating temperature by the auxiliary heater 36, and during the second process A method for cooking rice of an electric pressure thermal cooker, comprising a third step (305, 306) which terminates the heating step when the heating temperature by the main heater (34) and the auxiliary heater (36) is reached or the heating end time is completed. The method of claim 1, The power control process 400 sets the power control time of the main heater 34 and the auxiliary heater 36 and controls the power of the main heater 34 and the auxiliary heater 36 according to the fuzzy data. ) And a second step of counting and ending the time set in the first step and ending at the cooking end temperature. The method of claim 5, The first process is to apply full power to the main heater 34, and to supply the power to the auxiliary heater 36 mounted on the body and the lid at 15/30 current and 10/30 current, respectively. White rice cooking method of electric pressure thermal cooker, characterized in that. The method of claim 1, The moxibustion process 400 is a rice cooking method of the electric pressure thermal cooker, characterized in that to apply power to the auxiliary heater (36) mounted on the body and the lid, respectively, at a 24/30 conduction rate. The method of claim 1, The pressure elimination process 500 is a white rice cooking method of the electric pressure thermal cooker, characterized in that to drive the valve 38 mounted on the lid to remove the internal pressure of the pressure cooker. The method of claim 1, The thermal insulation process 600 changes the magnitude of the voltage applied to the auxiliary heater 36 according to the magnitude change of the voltage detected by the voltage sensing unit 18 and always applies a voltage having a constant magnitude to the auxiliary heater 36. White rice cooking method of electric pressure thermal cooker, characterized in that to keep the cooked rice at a constant temperature. The method of claim 1, The warming step 600 is to drive the valve 38 mounted on the lid to remove the internal pressure of the pressure cooker generated by the drive of the auxiliary heater 36, the rice cooking method of the electric pressure thermal cooker, characterized in that .