JPH06284959A - Electric cooker of rice gruel - Google Patents

Abstract

PURPOSE:To cook delicious rice gruel automatically either from rice or from boiled rice only by selecting a key switch. CONSTITUTION:At the start of cooking of rice gruel, the timer is switched on and water absorption process starts; the water absorption process ends after elapse of a specified water absorption time during which the heating electric power of heater is lowered gradually against the rise of temperature in the inner pot. Then, in the cooking process, the standard cooking curve is previously established to determine the rise of temperature in the inner pot up to boiling and the heating electric power of heater is controlled so that the temperature in the inner pot rises in accordance with the standard cooking curve, by detecting the temperature in the inner pot and always comparing it with the temperature on the standard cooking curve through the cooking process; different conditions for cooking rice gruel are specified in connection with the control depending on whether it is cooked from rice or from boiled rice and rice gruel is cooked under the control of heating electric power of heater based upon the cooking condition so specified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric rice porridge cooker, and more particularly, to an electric rice porridge cooker controlled by a microcomputer capable of surely and stably cooking delicious rice porridge with simple cooking control. Is.

[0002]

2. Description of the Related Art Electric rice porridge cookers currently on the market are provided with a heater at the bottom of an inner pot, and heating power is supplied to the heater to cook porridge.

Further, for the purpose of cooking delicious porridge, the temperature of the porridge cooking pot is measured by a controller equipped with a temperature sensor and a microcomputer as shown in FIG. An electric rice porridge cooker controlled by a microcomputer has been developed, which is input to a microcomputer to determine the porridge cooking capacity and perform appropriate power control according to the cooking capacity. An electric porridge cooker that cooks under the control of a microcomputer performs cooking process control such as a water absorption process, a cooking capacity determination process, a cooking process, and a boiling maintenance process in sequence under the program control of a microcomputer, and the porridge is in an optimal state. After cooking and porridge cooking control, the heat retention control state is entered. Thus, in the electric rice porridge cooker controlled by a microcomputer, the control of the cooking process can be finely controlled by the program control, so that delicious rice porridge can be cooked.

[0004]

However, in the conventional microcomputer-controlled electric rice porridge cooker, as shown in FIGS. 20 and 21, the water absorption step gradually raises the temperature until it reaches 40 ° C. Since the water is absorbed for a certain period of time, there is a problem that the water absorption time “varies” depending on the water temperature, and does not match the set time of the timer for cooking reservation (set cooking reservation time).

In the conventional cooking process of porridge, as shown in FIG. 22, heating is started along a standard cooking curve for a while after heating is started, and cooking capacity (total number) is judged. Since it is cooked up to the boiling point, there is a problem that the cooking time until it is placed on the standard cooking curve has "variation" and does not match the time set by the timer for the cooking reservation system.

[0006] In this way, when the time does not match the set time of the timer for cooking reservation, for example, if the rice is cooked earlier than the cooking reservation setting time, the taste will be improved at the cooking reservation setting time (at the time of notification of cooking). It has changed or has become paste-like.

If the cooked rice is cooked later than the reserved cooked time, the cooked rice may not be completely cooked at the cooked reserved time (at the time of notification of cooked food).

In addition, when porridge is cooked from rice,
It was very inconvenient because there is no automatic rice porridge cooker that automatically selects the case of cooking from rice.

The present invention has been made to solve the above problems, and an object of the present invention is to select the same electric rice porridge when cooking rice porridge from rice and when cooking rice porridge from rice. It is to provide an electric porridge cooker capable of automatically cooking with a cooker.

Another object of the present invention is to provide an electric porridge cooker capable of adjusting the cooking time to a preset cooking reservation time.

The above and other objects and novel features of the present invention will become apparent from the present specification and the accompanying drawings.

[0012]

In order to achieve the above-mentioned object, the present invention provides a microcomputer for sequentially controlling a cooking process including a water absorption process of making rice absorb water, a cooking process and a boiling maintaining process. In an electric porridge cooker having, an inner pot temperature detecting means for detecting the temperature of the inner pot, a timer for setting a water absorption time, a constant water absorption time is set in the timer, and the timer is started from the start of porridge cooking. A means for starting the water absorption step and ending the water absorption step when the predetermined time has elapsed, and a first heater heating for sequentially lowering the heater heating power corresponding to the temperature rise of the inner pot within the set water absorption time. A water absorption step provided with an electric power control means, and a standard cooking curve setting means for setting a standard cooking curve for determining the temperature rise of the inner pot until boiling, and the cooker. At all times, the temperature of the set standard cooking curve and the inner pan temperature detected by the inner pan temperature detecting means are constantly compared, and the heating power of the heater is increased so that the temperature of the inner pan rises along the standard cooking curve. Of the second heater heating power control means for controlling the above, and the first heater heating power control means and the second heater heating power control means are selected from rice to porridge or rice to cook. Rice / rice selection means, porridge cooking condition setting means for changing the first heater heating power control means and the second heater heating power control means according to the selection result of the rice / rice selection means, and the porridge cooking condition Third heater heating power control means for adjusting the second heater heating power control means based on the porridge cooking condition set by the setting means and then executing the adjustment is provided. Electric porridge making appliance according to the most important feature that comprises a can up process.

The selecting means for selecting rice / rice comprises a key switch.

[0014]

According to the above-mentioned means, the timer for setting a constant water absorption time is started from the start of porridge cooking and the water absorption process is started, and when the constant water absorption time elapses, the water absorption process is finished and the set. During the water absorption time, the heater heating power is sequentially decreased by the first heater heating power control means in response to the temperature rise of the inner pot. And in the cooking process,
Set the standard cooking curve that determines the temperature rise of the inner pan until boiling, detect the temperature of the inner pan, during the cooking process, the temperature of the set standard cooking curve and the detected inner pan temperature at all times In comparison, the second heater heating power control means controls the heating power of the heater so that the temperature of the inner pot rises along the reference cooking curve, and the first heater heating power control means and the second heater are controlled. It is selected whether the heating power control means is cooked from rice to rice porridge or rice is cooked, and the first heater heating power control means and the second heater heating power control means are changed according to the selection result. Since the cooking conditions are set, and the porridge is cooked by the third heater heating power control means after the second heater heating power control means is executed based on the set porridge cooking conditions, Even from, even from rice, by simply selecting the key switch can be increased cook automatically delicious porridge.

Further, the water absorption process time is made constant, and the heating power of the heater is controlled so that the temperature of the inner pot becomes constant during the fixed time, and the control of the heating power of the heater is controlled from the start of the process to the standard cooking. Perform on the curve temperature, make cooking capacity (total number) judgment while keeping the cooking time until boiling constant, and heat the inner pot with the heater heating power based on the cooking capacity (total number) by this judgment, for a certain time It will be boiled and porridge cooking will be completed, so even if you use the cooking reservation timer,
After cooking, match the cooking time of the porridge to the reserved time,
You can cook delicious rice porridge.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a front view of an electric porridge cooker according to an embodiment of the present invention, FIG. 2 is a plan view seen from the lid side (upper part) of FIG. 1, and FIG. 3 is A- shown in FIG. A sectional view taken along line A, FIG. 4 is a sectional view taken along line BB shown in FIG. 2, and FIG. 5 is a plan view of FIG. 1 seen from the bottom side.

1 to 5, 1 is an upper part of the case of the porridge cooker main body, 2 is a lower part of the case of the main body of the porridge cooker, 3 is a lid part of the main body of the porridge cooker, 4 is a lid part of the porridge.
Is an inner pot, 6 is a protective frame, 7 is a heater for cooking porridge, 8 is a function selection operation unit, 9 is a code cover, 10 is a code unit, 11 is a temperature fuse, 12 is a temperature sensor (center sensor), 13 is A control unit incorporating a microcomputer or the like, 14 is a substrate cover for protecting the substrate of the control unit 13, 15 is a timer knob, 16 is a spacer, and 17 to 22 are screws.

The function selection operation unit 8 is provided on the front surface of the lower case 2 of the porridge cooker body,
"From rice" operation key switch 8A and "from rice"
The operation key switch 8B is provided.

FIG. 6 is a block diagram showing the structure of the main part of the control unit 13 using the microcomputer of the rice porridge cooker. In FIG. 6, 31 is a power supply, 32 is a power switch, 33 is a relay, 34 is a power circuit, 35 is a microcomputer, 36 is a time setting volume (variable resistor), 37 is a sensor unit, and 38 is an inner pot detection. Switch, 39 is a buzzer for informing the cooked food, 40 is a timer light emitting element (LED), and 41 is a cooking light emitting element (LED).

FIG. 7 is a cross-sectional view showing the structure of the temperature sensor 12, where 51 is a sensor cover, 52 is a temperature sensor, 53 is an insulating tube, 54 is a sensor pressing plate, and 5 is a sensor holding plate.
5 is a sensor mounting plate, 56 is a spring, 57 is a micro switch, 58 is a lead wire, and 59 is a connector.

Next, the general operation of the porridge cooking control by the microcomputer control will be described.

In the porridge cooking operation of this embodiment, when the power switch 32 is turned on, preprocessing for cooking control is performed.
In the preprocessing of this cooking control, initialization processing for resetting various internal registers, timers, etc. of the microcomputer 35 is carried out, and cooking operation instruction data setting processing such as porridge cooking menu setting, cooking reservation time setting, etc. is carried out. hand,
When the start key switch is turned on (or at the reserved time in the case of reserved cooking), in order to perform cooking control,
The relay 33 is turned on and the cooking heater circuit is turned on.

Next, when a desired amount of rice and water corresponding thereto are put in the inner pot 5 and the start key switch is turned on, the microcomputer 35 of the control unit 13 is stored in the program memory ROM therein. The power control for heating in the cooking process is started according to the processing steps of the porridge cooking program. At this time, the microcomputer 35 converts the voltage output from the temperature sensor 12 into a digital amount from the input port A / D of the analog / digital converting function, inputs the digital amount, and converts the input temperature to the temperature. The determination is made, and various cooking processes are controlled based on the temperature determination result.

FIG. 8 to FIG. 15 are flowcharts showing the overall control flow of the microcomputer. Figure 8
15 to 15, SWk is a switch for cooking rice, S
Wg is a switch for cooking rice, VR is a timer setting volume, S is a cooking capacity (total) determination constant (time integrated value:
The unit is seconds), S ₁ is, for example, 45 seconds, S ₂ is, for example, 1
05 seconds. m is a temperature setting number, Tm is a symbol representing the temperature setting corresponding to the temperature setting number m, and a list thereof is shown in Table 1.

[0026]

[Table 1]

Is a blinking LED tact, for example,
It blinks at intervals of 0.5 seconds. Is a buzzer tact, which is, for example, a combination of various buzzer sound generation intervals at a frequency of 3.1 KHz.

The overall control procedure of the microcomputer 35 will be described with reference to FIGS.

As shown in FIG. 8, first, step 101
In, pre-processing of cooking control is performed. Next, the cooking heater is turned on, and the temperature of the inner pot 5 is 50 ° C. in step 102.
If above (NO), switch to cook from rice (SWk)
Since 8A is on, the process proceeds to step 103, the US memory flag is set, and the time integrated value S is set in step 104.
Is set to 50 seconds and the process proceeds to step 128.

If the temperature of the inner pot 5 in step 102 is 50 ° C. or lower (YES), it is checked in step 105 whether or not the value of the timer setting volume VR (36) is "0". If it is not "0" (NO), the process proceeds to step 146 (Fig. 13), and if it is "0" (YES),
Check whether the switch (SWk) 8A for cooking rice is turned on. Switch (SWk) 8A for cooking from rice
If is on (YES), go to step 107,
A buzzer notifies that the switch (SWk) 8A for cooking rice is turned on, the rice memory flag is set in step 108, and the process proceeds to step 111.

If the switch (SWk) 8A for cooking rice is off (NO), it is checked in step 109 whether the switch (SWg) 8B for cooking rice is on, and the switch (SWg) for cooking rice is selected. If 8B is off (NO), the abnormality process is performed.

If the switch (SWg) 8B for cooking rice is turned on (YES), the buzzer informs that the switch (SWg) 8B for cooking rice is turned on in step 110, and cooking is performed in step 111. The LED 41 is turned on.

Next, as shown in FIG. 9, in the water absorption step, it is checked in step 112 whether the temperature of the inner pot 5 is 20 ° C. or lower. If it is 20 ° C. or lower (YES), in step 113. Turn on 8/14 of heater 7 and step 1
Proceed to 19. If it is 20 ° C or higher (NO), step 1
In 14 it is checked whether the temperature of the inner pot 5 is 30 ° C. or lower. If it is 30 ° C. or lower (YES), 3/14 of the heater 7 is turned on in step 115 and the process proceeds to step 119.

If the temperature is 30 ° C. or higher (NO), step 1
In 16 it is checked whether the temperature of the inner pot 5 is 40 ° C. or lower. If it is 40 ° C. or lower (YES), 1/14 of the heater 7 is turned on in step 115 and the process proceeds to step 119.
If the temperature is 40 ° C. or higher (NO), the heater 7 is turned off in step 118, and it is checked in step 119 whether or not 500 minutes have elapsed. If 500 minutes have not elapsed (N)
O), stop processing is performed and the process returns to step 112.

Next, as shown in FIG. 10, step 11
If the step 500 minutes have elapsed in step 9 (YES),
In step 120, 14/14 of the heater 7 is turned on to start the porridge cooking process.

The temperature of the inner bowl 5 it is checked whether T ₀ ° C. or less at step 121, if the temperature of the inner bowl 5 is T ₀ ° C. or less (YES), returns to step 120 by performing a stop process.

If the temperature of the inner pot 5 is T ₀ ° C or higher (N
O), it is checked in step 122 whether the temperature of the inner pot 5 is Tm ° C or lower, and if the temperature of the inner pot 5 is Tm ° C or higher (NO), the heater 7 is turned off in step 123, and in step 124. The times are integrated and the process proceeds to step 126.

If the temperature of the inner pot 5 is lower than Tm ° C (YE
S), 14/14 of the heater 7 is turned on, and step 126
Move on to. In step 126, it is checked whether 10 seconds (sec) have passed, and if 10 seconds (sec) has not passed (N
O), stop processing is performed and the process returns to step 122.

If 10 seconds (sec) has elapsed (YES), m
= N, check if m ≠ n (NO)
Returns m to m + 1 and returns to step 122.

If m = n, as shown in FIG. 11, it is checked in step 128 whether or not 0 ≦ S <S ₁ , and if not (NO), S ₁ ≦ S < S ₂
If not (NO), 4/14 of the heater 7 is turned on and the process proceeds to step 133.

When the integrated value S is 0 ≦ S <S ₁ (YE
In S), 8/14 of the heater 7 is turned on in step 132 and the process proceeds to step 133. If S ₁ ≦ S <S ₂ (YES), in step 130 6/14 of the heater 7
Is turned on and the process proceeds to step 133.

At step 133, it is checked whether or not the US memory flag is set. If the US memory flag is set (YES), then at step 134 2
It is checked whether or not 000 seconds have elapsed, and if 2000 seconds have elapsed (YES), the process proceeds to step 136, and it is checked whether or not 130 ° C. or lower, and if 130 ° C. or lower (YES), Stop processing is performed and the process returns to step 128.

If the temperature is 130 ° C. or higher (NO), the process proceeds to step 138. If 2000 seconds have not elapsed in step 134 (NO), the process proceeds to step 137.

If the US memory flag is not set in step 133 (NO), it is checked in step 135 whether 500 seconds have passed, and if 500 seconds or 2000 seconds have passed (YES). In step 137, the buzzer 39 is sounded to notify that the rice porridge cooking mode or the rice porridge cooking mode is entered.

When 500 seconds have not elapsed (NO), it is checked in step 136 whether the temperature is 130 ° C. or lower. If the temperature is 130 ° C. or lower (YES), the stop process is performed and the process returns to step 128. If the temperature is 130 ° C or higher (N
O), and proceeds to step 138.

As shown in FIG. 12, the heater 7 is turned off in step 138, the rice memory flag is reset in step 139, and the cooking LED 41 blinks in step 140.

In step 141, the switch (SWk) 8A for cooking rice is turned on (YES), and step 142
The buzzer 39 is sounded to inform that the switch (SWk) 8A for cooking rice is turned on, and the rice memory flag is set in step 143 to return to step 128.

In step 141, if the switch (SWk) 8A for cooking rice is not turned off (NO), the process proceeds to step 144. In step 144, if the switch (SWg) 8B for cooking rice is turned on (YES). ), The buzzer 39 is sounded to notify that the switch (SWg) 8B for cooking rice is turned on (step 145), and the process returns to step 128.

If the switch (SWg) 8B for cooking rice is not turned on (NO), a power failure confirmation process is performed and the process returns to step 138.

Next, in step 105 shown in FIG. 8, when it is checked whether the value of the timer setting volume VR (36) is "0", if it is not "0", the processing procedure after that will be described. To do.

As shown in FIG. 13, in step 146, it is checked whether or not the switch (SWk) 8A for cooking rice is turned on. If the switch (SWk) 8A for cooking rice is turned on (YES), the buzzer 39 is sounded to notify that the switch (SWk) 8A for cooking rice is turned on in step 147, and the rice memory flag is set in step 148. Is set and the process proceeds to step 1151.

If the switch (SWk) 8A for cooking rice is off in step 146 (NO), it is checked in step 149 whether the switch (SWg) 8B for cooking rice is on or not. If the cooking switch (SWg) 8B is off (NO), step 1
At 45, an abnormality is notified by blinking the timer LED 40, and power failure confirmation processing is performed.

If the switch (SWg) 8B for cooking rice is turned on (YES), the buzzer 39 informs that the switch (SWg) 8B for cooking rice is turned on in step 150, and the timer LED 4 in step 151.
0 is turned on, and the process proceeds to step 152.

As shown in FIG. 14, it is checked in step 152 whether the time memory is set. If the time memory is set (YES), the value of the time setting volume VR (36) is set. It is checked whether or not it has been changed. If it has not been changed (NO), the process proceeds to step 157, and if it has been changed (YES), the process proceeds to step 154.

If the time memory flag is not set in step 152 (NO), the resistance value of the volume VR (36) for time setting is read in step 154, the time is calculated in step 155, and step 15 is executed.
The time T is set at 6.

In step 157, it is checked whether or not the US memory flag is set. If it is set (YES), in step 158 Tk = T-3000.
Is calculated, and the result is set in the time memory in step 159.

In step 160, it is checked whether or not Tk seconds have elapsed. If it has not elapsed (NO), a power failure confirmation process is performed in step 161, and the process returns to step 152. If Tk seconds have elapsed (YES), the process proceeds to step 165.

If the US memory flag is not set in step 157 (NO), then in step 162 Tg
= T-1500 is calculated, the time memory is set in step 163, and it is checked in step 164 whether Tg seconds have elapsed.

If Tg seconds have not elapsed (NO), a power failure confirmation process is performed and the process returns to step 152. If Tg seconds have elapsed (YES), it is reset in the time memory in step 165, and the process returns to step 111 shown in FIG.

FIG. 15 shows the procedure of the power failure confirmation processing,
The description is omitted here.

As can be seen from the above description, in this embodiment, steps 112 to 119 are water absorption steps, and steps 120 to 127 are cooking steps. Then, the time to set a constant water absorption time is started from the start of porridge cooking and the water absorption step is started, and the water absorption step is ended when the constant water absorption time has elapsed, and within the set water absorption time, the inner pot is The heater heating power is sequentially decreased by the first heater heating power control means in response to the temperature increase.

In the cooking process, a standard cooking curve for determining the temperature rise of the inner pan until boiling is set, the temperature of the inner pan is detected, and the temperature of the standard cooking curve is set during the cooking process. The temperature of the inner pot detected is constantly compared, and the heating power of the heater is controlled by the second heater heating power control means so that the temperature of the inner pot rises along the reference cooking curve. Whether the heater heating power control means and the second heater heating power control means are cooked from rice to porridge,
Alternatively, it is selected whether or not to cook rice, and the first heater heating power control means and the second heater are selected according to the selection result.
The porridge cooking conditions for changing the heater heating power control means of are set, and based on the set porridge cooking conditions, after the execution of the second heater heating power control means, by the third heater heating power control means, Cook porridge.

Further, the water absorption process time is made constant, and the heating power of the heater is controlled so that the temperature of the inner pot becomes constant during the fixed time, and the control of the heating power of the heater is controlled from the start of the process to the standard cooking. Perform on the curve temperature, make cooking capacity (total number) judgment while keeping the cooking time until boiling constant, and heat the inner pot with the heater heating power based on the cooking capacity (total number) by this judgment, for a certain time Bring to a boil and finish cooking porridge.

Further, a timer for setting the water absorption time, and a fixed time set by this timer, the timer is started from the start of porridge cooking and the water absorption process is started, and the water absorption process is terminated when the predetermined time has elapsed. Means and heating power control means for sequentially lowering the heater heating power in response to the temperature rise of the inner pot within the set water absorption time, as shown in FIG. Is kept constant (eg, 700 seconds) regardless of the initial water temperature, cooking capacity, etc., and the heating power of the heater is controlled so that the temperature of the inner pot becomes constant (eg, 40 ° C.) during the fixed time, and then boiling The cooking capacity (sum) is determined while the cooking time until is constant, and the inner pot is heated by the heater heating power based on the cooking capacity (sum) determined by this determination, and boiled for a certain time. Since the porridge to end the cooking, the use of cook-up reservation timer, align your cooking up of porridge to rise reservation time cook, it is possible to increase cook a tasty porridge.

Also, a standard cooking curve setting means for setting a standard cooking curve for determining the temperature rise of the inner pot until boiling.
Inner pot temperature detecting means for detecting the temperature of the inner pot, and at the same time as entering the cooking step, the temperature of the inner pot is constantly compared with the temperature of the set reference cooking curve and the detected inner pot temperature. Since the heater heating power control means for controlling the heating power of the heater so as to rise along the reference cooking curve is provided, as shown in FIG. 18, the control of the heating power of the heater is started. The cooking capacity (total number) is determined while keeping the cooking time until boiling constant, and the inner pot is heated by the heater heating power based on the cooking capacity (total number) determined by this determination. Then, the porridge is boiled for a certain period of time to finish the porridge cooking. Therefore, even when the cook-up reservation timer is used, the cooked rice can be cooked up to match the cooked-up reservation time and the delicious porridge can be cooked.

By combining the above two means, the water absorption process time is made constant, and the heating power of the heater is controlled so that the temperature of the inner pot becomes constant during the fixed time.
The heating power of the heater is controlled on the standard cooking curve temperature from the beginning of the cooking process, the cooking capacity (total number) is determined while the cooking time until boiling is kept constant, and the cooking capacity (total number) is determined by this determination. The inner pot is heated by the heater heating power based on, and the porridge cooking is finished by boiling for a certain period of time, so even if you use the cook-up reservation timer, you can match the cooked porridge to the cooked-up reservation time. You can cook delicious porridge securely and safely.

Although the present invention has been specifically described based on the embodiments, the present invention is not limited to the above embodiments, and it goes without saying that various modifications can be made without departing from the scope of the invention. Absent.

[0068]

As described above, according to the present invention, delicious rice porridge can be automatically cooked from rice or rice simply by selecting with a key switch.

Further, the water absorption process time is made constant, and the heating power of the heater is controlled so that the temperature of the inner pot becomes constant during the fixed time, and the control of the heating power of the heater is controlled from the start of the process to the standard cooking. Perform on the curve temperature, make cooking capacity (total number) judgment while keeping the cooking time until boiling constant, and heat the inner pot with the heater heating power based on the cooking capacity (total number) by this judgment, for a certain time It will be boiled and porridge cooking will be completed, so even if you use the cooking reservation timer,
After cooking, match the cooking time of the porridge to the reserved time,
You can cook delicious rice porridge securely and safely.

[Brief description of drawings]

FIG. 1 is a front view of an electric porridge cooker according to an embodiment of the present invention,

FIG. 2 is a plan view seen from the lid side (upper part) of FIG.

FIG. 3 is a sectional view taken along line AA shown in FIG.

4 is a cross-sectional view taken along line BB shown in FIG.

5 is a plan view of FIG. 1 viewed from the bottom side,

FIG. 6 is a block diagram showing a configuration of a main part of a control unit using a microcomputer of the porridge cooker of the present embodiment,

FIG. 7 is a cross-sectional view showing the structure of the temperature sensor section of the present embodiment,

FIG. 8 is a flowchart showing the overall control flow of the microcomputer of this embodiment,

FIG. 9 is the same as FIG.

FIG. 10 is the same as FIG.

FIG. 11 is the same as FIG.

FIG. 12 is the same as FIG.

FIG. 13 is the same as FIG.

FIG. 14 is the same as FIG.

FIG. 15 is the same as FIG.

FIG. 16 is a view showing a temperature curve of the inner pot bottom of the present embodiment,

FIG. 17 is a view showing a temperature curve during a water absorption step of this example,

FIG. 18 is a view showing a temperature curve during the cooking process of this example,

FIG. 19 is a diagram showing an inner pot temperature curve when cooking conventional porridge,

FIG. 20 is a diagram showing a temperature curve in the case where cooking capacities in the conventional water absorption step are different,

FIG. 21 is a diagram showing a temperature curve when the initial water temperature is different during the conventional water absorption process,

FIG. 22 is a diagram showing a temperature curve in the case where cooking capacities in the conventional cooking process are different.

[Explanation of symbols]

1 ... Upper part of the case of porridge cooker body, 2 ... Lower part of the case of porridge cooker body, 3 ... Lid part of porridge cooker body, 4 ...
Rice porridge lid part, 5 ... Inner pot, 6 ... Protective frame, 7 ... Rice porridge cooking heater, 8 ... Function selection operation unit, 9 ... Code cover, 10 ... Code unit, 11 ... Thermal fuse, 12
... temperature sensor (center sensor), 13 ... control unit, 14 ... substrate cover, 15 ... timer knob, 16 ... spacer, 17-22 ... screws, 8A ... "from rice" operation key switch, 8B ... "from rice" operation Key switch,
31 ... Power source, 32 ... Power switch, 33 ... Relay, 34
... Power supply circuit, 35 ... Microcomputer, 36 ... Time setting volume (variable resistor), 37 ... Sensor unit, 38 ... Inner pot detection reed switch, 39 ... Notification buzzer, 40 ... Timer light emitting element (LED) , 41 ... Light emitting element (LED) for cooking.

Claims (2)

[Claims] 1. An electric rice porridge cooker having a microcomputer for sequentially controlling a cooking process including a water absorption process for making rice absorb water, a cooking process, and a boiling maintenance process, and an inner pot for detecting the temperature of the inner pot. A temperature detecting means, a timer for setting a water absorption time, a fixed time is set in the timer, the timer is started from the start of porridge cooking and the water absorption step is started, and the water absorption step is ended when the predetermined time elapses. Means and the heater heating power is sequentially decreased in response to the temperature rise of the inner pot within the set water absorption time.
The water absorption step in which the heater heating power control means is provided, and the reference cooking curve setting means for setting the reference cooking curve that determines the temperature rise of the inner pot until boiling, and the above-mentioned setting during the cooking step. Secondly, the temperature of the standard cooking curve is constantly compared with the inner pan temperature detected by the inner pan temperature detecting means, and the heating power of the heater is controlled so that the temperature of the inner pan rises along the standard cooking curve. Rice heating / rice selection means for selecting whether to heat the heater heating power control means, and the first heater heating power control means and the second heater heating power control means from rice to rice porridge or rice. And porridge cooking condition setting means for changing the first heater heating power control means and the second heater heating power control means according to the selection result of the rice / rice selection means, and the rice. And a cooking step in which a third heater heating power control means for adjusting the second heater heating power control means based on the cooking condition set by the cooking condition setting means and executing the adjustment is provided. Electric rice porridge cooker characterized by. 2. The electric rice porridge cooker according to claim 1, wherein the rice / rice selection unit to be selected comprises a key switch.