KR100186428B1 - Electric rice cooker - Google Patents

Abstract

The present invention relates to a moxibustion process control device and method of the electric thermal cooker, in particular, by re-determining the load in the moxibustion process by adjusting the thermal power to constantly raise the temperature inside the rice cooker to implement the taste of the taste of the consumer It was created to do. In the present invention, the moxibustion cooking selection unit 270 for selecting the moxibustion function and the moxibustion cooking selection unit 270 in the control of the cooking process select the moxibustion function at the beginning of the moxibustion process. 12) and the microcomputer 200 for controlling the heater drive block 260 by determining the load amount and determining the on / off time of the heaters 13 to 15 of the upper, side, and lower sides according to the load amount. do.

Description

Moxibustion process control device and method for electric insulation rice cooker

The present invention relates to an electric heat cooker, and more particularly, to an apparatus and method for controlling an electric heat cooker of the electric heat cooker which improved the function of the moxibustion process in the cooking process.

In general, the electric thermal cooker has a structure as shown in the cross-sectional view of FIG.

The electric warm rice cooker having such a structure is provided with heaters 13 to 15 at the lower side, the side, and the upper part of the inner container for the cooking process, and the sensors 11 and the upper and lower parts of the container to smoothly control the cooking process. 12).

The control apparatus of the related art is a block diagram of FIG. 2, as shown therein, a menu selection unit 110 for selecting a menu, a reservation / time setting unit 120 for setting a reservation and execution time of a cooking process, and And a microcontroller for controlling the heater driving block 160 according to a key input of the heater selecting block 160 driving the heaters 13 to 15 and the menu selection unit 110 and the reservation / time setting unit 120. Computer 100.

The heater driving block 160 includes a heating plate driving unit 130, a side heater driving unit 140, and an upper heater driving unit 150.

Referring to the operation of the prior art as follows.

When the desired menu is selected by the menu selection unit 110 and the reservation time or cooking time is set by the reservation / time setting unit 120, the microcomputer 100 sets the heater driving block 160 by the process illustrated in FIG. 3. By controlling and driving the lower, side, and upper heaters 13 to 15 as shown in the timing diagram of FIG. 4, the cooking process is executed.

That is, the cooking process is composed of three (4) processes of soaking, heating (heating, boiling), and moxibustion as in the process illustration of FIG.

The soaking process is a process in which rice is sufficiently soaked in water to make a rice without a core.

The heating process is a process of boiling soaked rice with water to heat raw rice for about 10 minutes.

The boiling process is a process in which the uncooked rice further promotes the finished form to a certain amount of rice in the heating process so that it becomes a complete rice. The boiling process is a process of maintaining thermal power for a certain time so that moisture is evenly distributed throughout the entire surface.

The moxibustion process is a process of evaporating the remaining moisture in the cooked rice and giving the rice a delicious aroma.

In this process, the heaters 13 to 15 mounted on the bottom, side, and top of the inner container are controlled as shown in the timing diagram of FIG.

In this cooking process, the applied thermal power of the rice cooker can be cooked sufficiently without pressing the rice only if it is changed according to the given load, so that the load estimation is one of the important factors. The sensors 11 and 12 sense the temperature value (absolute value, slope value) at a specific time and estimate the load amount therefrom.

That is, after heating the heating heater 13 installed at the bottom of the rice cooker with a constant thermal power, the temperature value read by the upper sensor 11 is analyzed, and if the upper temperature value at a specific time is low, the load is large, and conversely, the upper temperature value is If high, the load is assumed to be small.

When the heater 13 installed in the lower part is heated, the heat must be passed through the injected load in order to transfer heat to the sensor 11 installed in the upper part. The conduction heat is time sensitive to the temperature sensor 11 as the load amount increases. On the contrary, the principle is that the response time is faster when the load is small.

This cooking process is performed in the same process as the signal flow of FIG.

First, when the cooking starts, the microcomputer 100 is initialized and then controls the hot plate driver 130 and the side heater driver 140 in the section t1 to lower the heater as shown in FIG. 4 (a) (b). A soaking process is performed while turning on / off the 13 and the side heaters 14.

After that, when the soaking process is finished, the microcomputer 100 controls the heater driving unit 160 to execute the heating process. The temperature sensor 11 at a specific time is turned on / off by the lower heater 13 for a predetermined time. The load is estimated from the detected temperature value (absolute value, slope).

Thereafter, when the heating process is performed for a predetermined time t2, the microcomputer 100 controls the main heat plate driving unit 130, the side heater driving unit 140, and the lower heater driving unit 150 to be a section t3 of FIG. 4. As described above, the boiling process is performed by turning on / off all the heaters 13 to 15.

Thereafter, when the temperature sensor 11 detects a predetermined temperature T1, the microcomputer 100 executes a moxibustion process. The side heater 14 is controlled by controlling the side heater driver 140 and the upper heater driver 150. Only the upper heater 15 is turned on / off as shown in FIG.

When this process is complete, complete rice is cooked.

However, since the electric insulation rice cooker has a different thickness and heat transfer system of the rice cooker compared to the conventional cauldron, there is a limit in producing the same delicious taste as the cauldron.

That is, in the prior art, since the side heater with less thermal power is used in the moxibustion process, the lower temperature of the cooker is gradually lowered by lowering the latent heat heated until just before the heating process as the heating process is switched to the moxibustion process. There is a drawback that you cannot expect the delicious taste of latent heat.

In order to improve the disadvantages of the prior art, the moxibustion of the electric thermal cooker was created to implement a taste that meets the taste of consumers by re-determining the load in the moxibustion process and adjusting the thermal power to constantly raise the temperature inside the cooker. An object of the present invention is to provide a process control device and a method thereof.

1 is a cross-sectional view showing the structure of a general electric rice cooker.

2 is a block diagram of a conventional cooking process control device.

3 is a waveform diagram showing the temperature of each process.

4 is a timing diagram in FIG.

5 is a signal flow diagram for controlling a conventional cooking process.

6 is a block diagram of a moxibustion process control apparatus according to the present invention.

7 is a timing diagram in FIG.

8 is a signal flow diagram for the cooking process control according to the present invention.

9 and 10 are waveform diagrams showing the determination of the load in the present invention.

* Explanation of symbols for main parts of the drawings

200: microcomputer 210: menu selection unit

220: reservation / time setting unit 230: hot plate driving unit

240: side heater driving unit 250: upper heater driving unit

260: heater drive block 270: moxibustion cooking unit

The present invention, in order to achieve the above object, in the battery insulation rice cooker, the moxibustion cooking selection means for selecting the moxibustion function, and when the moxibustion function is selected in the moxibustion cooking selection means to determine the load in the moxibustion process, the top, side And control means for controlling the heater driving means to drive all of the lower heaters.

In addition, the present invention in the cooking process of the electric thermal cooker in order to achieve the above object, the step of determining whether the moxibustion function is selected when the boiling process is finished, and if the moxibustion function is selected in the above to determine the load accordingly It comprises a step of turning on / off all of the upper, side and lower heaters.

Hereinafter, the present invention will be described in detail with reference to the drawings.

In the embodiment of the present invention, as shown in the block diagram of FIG. 6, a menu selection unit 210 for selecting a menu, a reservation / time setting unit 22 for setting a reservation and execution time of a cooking process, The heater driving block 260 for driving the heaters 13 to 15, the moxibustion cooking unit 270 for selecting the moxibustion function, and the moxibustion cooking unit 270 for controlling the cooking process When the function is selected, the load temperature is determined by the lower temperature sensor 12 at the beginning of the moxibustion process, and the on / off times of the heaters 13 to 15 of the upper, side, and lower sides are determined according to the load amount, thereby the heater driving block 260 Is configured as a microcomputer (200) for controlling.

The heater driving block 260 is composed of a heating plate driving unit 230, a side heater driving unit 240, the upper heater driving unit 250.

Referring to the operation and effect of the embodiment of the present invention configured as described above are as follows.

When the desired menu is selected in the menu selector 210 and the cook / set time is set in the reservation / time setting unit 220, the microcomputer 200 starts the heater driving block 260 for each cooking process. To control the on / off times of the lower, side, and upper heaters 13 to 15 to cook.

In this case, the user may select the moxibustion state in the moxibustion cooking unit 270.

If the moxibustion function key is not selected, the microcomputer 200 performs the moxibustion process by the same process as the prior art.

If the moxibustion function key is selected, the microcomputer 200 determines the load amount by calculating an inclination and an absolute magnitude value with respect to the temperature detected by the lower temperature sensor 12 for a predetermined time, and the heaters 13 to 15 according to the load amount. By controlling the heater driving block 260 by determining the on / off time of the) to achieve the desired taste.

This process is described with reference to FIGS. 7 to 10 as follows.

First, when the function key is selected in the moxibustion function selection unit 270, the microcomputer 200 stores the key selection state.

After that, when the cooking process is started, the microcomputer 200 is initialized and then controls the main heating plate driver 230 and the side heater driver 240 in a predetermined section t1 and FIG. 7 (b) (c). As described above, the soaking process is executed while the lower heater 13 and the side heater 14 are turned on and off.

After that, when the soaking process is finished, the microcomputer 200 controls the heater driving block 260 to execute the heating process, and turns the lower heater 13 on / off during the period t2 to the temperature sensor 11. Estimate the load from the sensed temperature value.

At this time, as shown in the waveform of FIG. 9, it is determined that the load amount is small when the temperature sensed by the temperature sensor 11 is high for a predetermined time and the load amount is high when the detection temperature is low.

Thereafter, when the heating process is performed for a predetermined time t2, the microcomputer 200 controls the main heat plate driving unit 230, the side heater driving unit 240, and the lower heater driving unit 250 to control the operation of FIG. 7 (b to d). As in the section t3 of), all of the heaters 13 to 15 are turned on / off to perform the boiling process.

Thereafter, when the temperature sensor 11 detects a predetermined temperature T1, the microcomputer 200 determines that the boiling point is the end of the boiling process and determines whether to select the function key in the moxibustion cooking selector 270.

If the function key is not selected, the microcomputer 200 controls the side heater driver 240 and the upper heater driver 250 to turn on only the side heater 14 and the upper heater 15 for a predetermined time as in the prior art. The moxibustion process is performed by turning on / off.

If the function key is selected, the microcomputer 200 calculates the temperature value (tilt, absolute value) for a specific time detected by the lower temperature sensor 12 at the beginning of the moxibustion process to calculate the load amount as shown in the waveform of FIG. It is determined.

Accordingly, the microcomputer 200 determines the on / off time of the heaters 13 to 15 in accordance with the estimated load amount and turns on / off all the heaters 13 to 15 as shown in FIG. 7 (b to d). By turning off, the temperature inside the cooker is constantly raised to perform the moxibustion process.

The reason for determining the load again in the moxibustion process is that since the moisture inside the cooker is almost evaporated in the moxibustion process, if the correct amount is not determined, an incorrect control pattern is applied according to the load, and the lower part of the container burns badly and deforms the cooker. (E.g., a phenomenon in which the coating agent peels off) and the like.

As described in detail above, the present invention controls the moxibustion process according to the taste of the consumer, thereby satisfying the individual tastes of various consumers, as well as improving the performance of the product.

Claims (2)

An electric warm rice cooker comprising a menu selection means, a reservation / time setting means, and a heater driving means, wherein the moxibustion cooking selection means for setting the moxibustion function control conditions, and the moxibustion function control conditions in the moxibustion cooking selection means are set. Moxibustion process control device for electric heat cooker characterized in that it comprises a control means for controlling the heater drive means to determine the load amount at the beginning of the process to turn on / off the heaters of the top, side and bottom. In the cooking process of the electric warm rice cooker which performs the soaking process, heating process, boiling process, and moxibustion process sequentially, the first step of determining the end of the boiling process, and whether the moxibustion function is selected when the boiling process is finished A second step of determining, a third step of determining a load amount if the moxibustion function is selected, and a step of controlling the moxibustion process by determining on / off times of the heaters of the upper, side, and lower parts according to the load amount Moxibustion process control method of the electric warm rice cooker characterized in that performing four steps.