JPH0910102A - Rice-cooker - Google Patents

Abstract

PURPOSE: To scorch rice irrespective of a rice cooking amount by providing a rice cooking controlling means and a scorching function-setting means or the like to set a cooking-up temperature necessary for scorching rice, and increase a heating amount by an additional cooking pattern setting means in the case when a rice cooking amount-judging temperature-setting means has got the scorching function set thereto. CONSTITUTION: When a rice cooking controlling means 8 has got a scorching function set by a scorching function setting means 4 in a rice cooking amount judging process, cooking-up process and steaming process, the rice cooking controlling means 8 can change a rice cooking amount judging temperature set by a rice cooking amount judging temperature setting means 5 in the rice cooking amount judging process. Also, the cooking-up temperature is set to be raised by a cooking-up temperature setting means 6 in the cooking-up process. A heating amount of an additional cooking pattern can be changed to be increased by an additional cooking pattern setting means 7 in the steaming process. When a user sets the scorching function by the scorching function setting means 4, the rice can be scorched in the cooking-up irrespective of the rice cooking amount.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice cooker mainly used at home on a daily basis.

[0002]

2. Description of the Related Art In recent years, needs for diversification and sophistication of consumers' tastes have become stronger, and rice cookers controlled by a micro computer have become popular in order to cook more delicious rice.

Under such circumstances, non-burnable rice cookers have been popularized, and some rice cookers that can burn scorched rice are remembered because the rice cooked in the old pot had a scorched bottom but was delicious. Has come to be requested in.

Conventionally, the rice cooking process of this type of rice cooker has been generally as shown in FIG. As shown in FIG. 8, first, a pre-cooking step in which rice absorbs water is performed. Next, the rice is heated with the maximum heating amount, and the time taken for the temperature of rice and water to pass through the temperature at two predetermined points is measured. Since this time correlates with the amount of rice and water, that is, the amount of cooked rice, the amount of cooked rice can be known based on this time. Since the amount of cooked rice and the amount of heat required for cooking are correlated, the amount of cooked rice can be determined based on this amount of cooked rice. After that, the amount of heating is adjusted according to the amount of cooked rice to start the cooking process. In the cooking process, the water in the pan is reduced and the specified temperature (about 130
(° C), the amount of heat required to prevent the rice on the bottom of the pan from burning for a certain amount of time during the steaming process in which the rice absorbs water evenly over a certain period of time and gelatinizes There is additional heating to cook rice and finish cooking.

[0005]

However, in such a conventional rice cooker, in the steaming process, the cooked rice is cooked with a heating amount that does not scorched the rice on the bottom of the pan, so that the cooked rice cannot be cooked. Had a problem.

The present invention solves the above problems, and a first object thereof is to burn the cooked rice regardless of the amount of cooked rice.

A second object is to burn the cooked rice in a more reliable manner regardless of the amount of cooked rice.

[0008]

In order to achieve the first object, the present invention provides a pot for putting rice and water, a heating means for heating the pot, and a temperature detecting means for detecting the temperature of the pot. And a burning function setting means for setting a burning function, a cooking amount determination temperature setting means for setting a cooking amount determination temperature for determining the cooking amount, a cooking temperature setting means for setting a cooking temperature, and an additional cooking pattern. The additional heating pattern setting means for setting the temperature, the temperature detecting means, the rice cooking amount determination temperature setting means, the cooking temperature setting means and the additional heating pattern setting means are used as inputs to control the heating means. The rice cooking amount determination temperature setting means sets the rice cooking amount determination temperature necessary for burning the rice when the burning function is set by the burning function setting means, and When the temperature setting means for burnt function is set by the burnt function setting means sets the temperature was raised cooking required to burn the rice, the reheating pattern -
The heat setting means is set so as to increase the heating amount when the charring function is set by the charring function setting means.

In order to achieve the second object, the present invention provides a pot for putting rice and water, heating means for heating the pot, temperature detecting means for detecting the temperature of the pot, and a burning function. Burning function setting means for setting, the heating amount setting means for determining the heating amount in the cooking process, the heating temperature setting means for setting the heating temperature, and the additional heating pattern for setting the additional heating pattern. A rice setting control means, the temperature detection means, the cooked heating amount setting means, the cooked temperature setting means and the rice cooking control means for controlling the heating means with the output of the additional cooking pattern setting means as an input, The cooked heating amount setting means sets a cooked heating amount necessary for burning rice when the burn function is set by the burn function setting means, and the cook temperature setting means sets the cook temperature. When the burning function is set by the function setting means, the cooking temperature necessary for burning the rice is set, and the additional cooking pattern setting means is set when the burning function is set by the burning function setting means. The heating amount is set so as to increase.

[0010]

According to the present invention, with the above configuration, when the user sets the burning function by the burning function setting means, the burning can be added at the time of cooking regardless of the amount of cooked rice.

By increasing the amount of cooked rice determined by the amount of cooked rice by means of the cooked heat amount setting means, it is possible to more surely burn the cooked rice regardless of the amount of cooked rice.

[0012]

【Example】

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG.

FIG. 1 is a block diagram of a rice cooker according to a first embodiment of the present invention, in which 1 is a pot for putting rice and water, 2 is a heating means for heating the pot 1, and 3 is the pot. 1 is a temperature detecting means for detecting the temperature of the bottom of the pot, 4 is a burning function setting means for setting a burning function, and 5 is an output from the burning function setting means 4 among a plurality of set temperatures for judging the amount of cooked rice. Cooked rice quantity judgment temperature setting means for setting the cooked rice quantity judgment temperature necessary for burning the cooked rice, 6 is necessary for burning the cooked rice against the output from the burning function setting means 4 among a plurality of cooked temperatures The cooking temperature setting means for setting the cooking temperature, 7 is a plurality of additional cooking patterns, and the additional cooking pattern necessary for burning the rice with respect to the output from the burning function setting means 4 is set. Additional cooking pattern setting means to be set, 8 is the temperature A cooking control means for controlling cooking of the heating means 2 outputs as the input temperature setting means 6 and the reheating pattern setting unit 7 up cook said the knowledge unit 3 and the cooking volume determination temperature setting means 5. This rice cooking control means 8 is set by the rice cooking amount determination temperature setting means 5 in the rice cooking amount determination process when the burning function is set by the burning function setting device 4 in the rice cooking amount determination process, the cooking process, and the steaming process. The cooked rice amount judgment temperature is changed so that the cooked temperature is set by the cooked temperature setting means 6 in the cooked step, and the cooked pattern is set by the follow-up pattern setting means 7 in the steamed step. Changes can be made to increase the heating amount of the pattern.

FIG. 2 is a sectional view of the first and second rice cookers of the present invention, in which the temperature detecting means 3 for detecting the temperature of the pot 1 comprises a temperature resistance element for converting the temperature into a resistance value. It is configured to move up and down, and is placed in contact with the bottom surface of the pot 1. A control device (not shown) including a microcomputer including the additional cooking pattern setting means 7 and the rice cooking control means 8 is incorporated in the circuit board 26 and attached to the side surface of the main body 27.

In the rice cooker configured as described above,
The operation when cooking rice will be described with reference to the flowcharts of FIGS. 3 and 4.

In FIG. 3, it is determined in step 1 whether or not the burn switch of the rice cooker has been pressed, and if it has been pressed, it is stored in step 2 that the burn switch has been pressed.
Next, in step 3, it is determined whether or not the rice cooking start switch has been pressed, and steps 1 to 3 are repeated until it is pressed. If the rice cooking start switch is pressed in step 3, the process proceeds to step 4, and the precooking process of maintaining the temperature in the pan 1 at 50 degrees for 20 minutes is executed. The precooking process of step 4 is performed until this precooking process is completed in step 5. When the precooking time of 20 minutes is over in step 5, the process proceeds to step 6 to move to the rice cooking amount determination process. In step 6, the heating amount of the heater is maximized, and in step 7, it is determined whether the scorching switch was pressed before cooking rice.

If the scorching switch is not pressed, pan 1
Repeat step 8 until the temperature reaches 80 degrees,
When it reaches 0 degrees, the time is measured in step 9. Next pot 1
Step 9 to Step 1 until the temperature reaches 90 degrees
Repeat 0. If the burn switch is pressed in step 7, the process proceeds to step 11 and the temperature of the pot 1 is changed to 7
Step 11 is repeated until it reaches 0 degrees, and when it reaches 70 degrees, the time is counted in step 12. Next, steps 12 to 13 are repeated until the temperature of the pot 1 reaches 95 degrees. After step 10 and step 13, the process proceeds to step 14, the amount of cooked rice is determined from the time counted in steps 9 and 12, and the amount of heating required in the cooking process is set from the determined amount of cooked rice. Then step 1
If the burn switch is not pressed in step 5, proceed to step 16 until the temperature of the pot 1 reaches 130 degrees, step 14,
Steps 15 to 16 are repeated.

If it is determined in step 15 that the scorching switch has been pressed, the process proceeds to step 17 and steps 14, 15, and 17 are repeated until the temperature of the pot 1 reaches 150 degrees.

The next step is to move to step 18 in FIG. 4 to execute the steaming process. In step 18, the heating amount is set to zero, and in step 19, steps 18 and 19 are repeated until 2 minutes have passed since the steaming process was started. If 2 minutes have passed with zero heating amount in step 19, step 2
Go to 0. If the scorching switch is not pressed in step 20, the amount of heat for additional cooking in the steaming process is set in step 21. If it is determined in step 20 that the scorching switch has been pressed, the process proceeds to step 23, and the heating amount for supplementing the steaming process is set. Steps 21 and 2
Since the heating amount of 3 is calculated based on the amount of cooked rice, the longer the time measured in steps 9 and 12, the larger the heating amount.

In step 22, heating is performed for 2 minutes with the heating amount set in steps 21 and 23, and after 2 minutes, the process proceeds to step 24. In step 24, the heating amount is made zero again, and in step 25, the heating amount is made zero for 5 minutes.
This makes the rice steamed and fluffy.
When steaming for 5 minutes is completed in step 25, rice cooking is completed in step 26.

As described above, according to the first embodiment of the present invention, if the charring function is selected with the charring switch, the first operation is to change the reference temperature for determining the amount of cooked rice, which is higher than the actual amount of cooked rice. Is timed. The second operation is
The temperature when cooking (dry-up temperature) is set higher (150 degrees). As a third operation, the additional heating amount in the steaming process is uniformly set to be high.

The heating amount for additional cooking is determined by the heating amount in the cooking process, which is determined from the temperature rise rate of the pot 1 in the cooking amount determination process, and is determined from the result. The amount of cooked rice that does not burn too much or does not burn just comes out. Therefore, it is determined that the amount of cooked rice is pseudo large in order to evenly burn any amount of cooked rice. Furthermore, as the action of the first operation, the heating amount in the cooking process is increased, and as a result, the heating amount in the additional cooking calculated by the heating amount in the cooking process is increased. Yes It is possible to increase the heating amount during additional cooking appropriately.

Further, the heating means 2 may be a duty control for turning on / off the heater or an inverter control for directly controlling the electric power as means for changing the heating amount.

(Second Embodiment) A second embodiment of the present invention will be described below with reference to FIGS. 2 and 5 to 7.

FIG. 4 is a block diagram of a rice cooker according to a second embodiment of the present invention, in which 1 is a pot for putting rice and water, 2 is a heating means for heating the pot 1, and 3 is the pot. 1 is a temperature detecting means for detecting the temperature, 4 is a burning function setting means for setting a burning function, 31 is a cooking heat amount setting for determining the heating amount in the cooking process from the rice cooking amount determined in the rice cooking amount determining process. In the means, the cooked heat amount setting means for changing the output from the burnt function setting means 4 to the heating amount necessary for burning rice, 6 is the burnt function setting means 4 among a plurality of cooked temperatures. The cooking temperature setting means for setting the cooking temperature required for burning the rice with respect to the output from the rice, and the reference numeral 7 for the output from the burning function setting means 4 among the plurality of additional cooking patterns. Additional cooking needed to burn An additional cooking pattern setting means for setting a turn, 32 is a control means of the temperature detecting means 3, the additional heating amount setting means 31, the additional heating temperature setting means 6 and the additional heating pattern setting means 7. The output is used as an input to control the heating means 2 to cook rice. Further, the rice cooking control means 32 uses the charring function setting means 4 to set the charring function in the cooking step and the steaming step. The heating amount set by the cooking heating amount setting means 31 is changed to increase the heating amount determined by the cooking amount of rice, and the heating temperature setting means 6 is set to raise the heating temperature. In the steaming step, the additional cooking pattern is set. It is possible to change the heating amount of the additional cooking pattern by increasing the heating amount setting means 7.

In the rice cooker configured as described above,
The operation when cooking rice will be described with reference to the flowcharts of FIGS. 6 and 7. In FIG. 6, it is determined in step 31 whether the scorching switch of the rice cooker has been pressed, and if it has been pressed, it is stored in step 32 that the scorching switch has been pressed. Next, in step 33, it is determined whether or not the rice cooking start switch has been pressed, and steps 31 to 33 are repeated until it is pressed. If the rice cooking start switch is pressed in step 33, the process proceeds to step 34, and the temperature in the pan 1 is set to 5
Perform a precooking process that keeps at 0 degrees for 20 minutes. Step 3
In step 5, the precooking process of step 34 is performed until the precooking process is completed. When the pre-cooking time of 20 minutes is over in step 35, the process proceeds to step 36 to move to the rice cooking amount determination process. In step 36, maximize the heating amount of the heater,
Step 37 is repeated until the temperature of the pot 1 reaches 80 degrees, and when it reaches 80 degrees, the time is counted in step 38.
Next, step 39 is repeated from step 38 until the temperature of the pot 1 reaches 90 degrees. If the temperature of the pot 1 reaches 90 degrees in step 39, the process proceeds to step 40, and it is determined whether the charring switch has been pressed before cooking rice. If no charring is set in step 40, the amount of cooked rice is determined from the time counted in step 38, and the amount of heating that is normally required in the cooking process is set from the determined amount of cooked rice. Next, in step 42, steps 40, 41 and 42 are repeated until the temperature of the pan 1 reaches 130 degrees. In step 40,
If the scorching switch is pressed, the process proceeds to step 43, the amount of cooked rice is determined from the time counted in step 38, and the amount of heating required to burn the rice in the cooking process is determined from the determined amount of cooked rice. Set. Then step 4
Proceed to step 4 until the temperature of pan 1 reaches 150 degrees, step 4
0, 43, 44 are repeated.

When the cooking end temperature (130 degrees without charring and 150 degrees with charring) is reached in steps 42 and 44, the next step moves to step 45 in FIG. 7 to execute the steaming process. In step 45, the heating amount is made zero, and in step 46, steps 45 and 46 are repeated until 2 minutes have passed after the steaming process was started. Step 4
If the heating amount is zero and 2 minutes have elapsed in step 6, the process proceeds to step 47. If the scorching switch is not pressed in step 47, a heating amount for additional cooking in the steaming process is set in step 48. If it is determined in step 47 that the scorching switch has been pressed, the process proceeds to step 50 and the heating amount for supplementing the steaming process is set. Since the additional heating amount in steps 48 and 50 is calculated based on the additional heating amount in the cooking process, the higher the heating amount in steps 41 and 43 is, the stronger the additional heating amount is. Set the heating amount of. In step 49, heat for 2 minutes with the heating amount set in steps 48 and 50, and
If the time has passed, the process proceeds to step 51. In step 51, the heating amount is set to zero again, and in step 52, the heating amount is set to zero for 5 minutes. This makes the rice steamed and fluffy. When steaming for 5 minutes is completed in step 52, rice cooking is completed in step 53.

As described above, according to the second embodiment of the present invention, when the charring function is selected by the charring switch, the time measured for determining the amount of cooked rice is converted into the amount of cooked heat as the first operation. Occasionally, a heating amount that is larger than the actual heating amount for cooking rice is set. The second operation is
The temperature when cooking (dry-up temperature) is set higher (150 degrees). As a third operation, the additional heating amount in the steaming process is uniformly set to be high.

The heating amount for additional cooking is determined by the heating amount in the cooking process, which is determined from the temperature rise rate of the pot 1 in the cooking amount determination process, and is determined from the result. The amount of cooked rice that does not burn too much or does not burn just comes out. Therefore, in order to evenly burn any amount of cooked rice, the amount of heating in the cooking process based on the amount of cooked rice is set to be large. Furthermore, as the action of the first operation, the heating amount in the cooking process is increased, and as a result, the heating amount in the additional cooking calculated by the heating amount in the cooking process is increased. Therefore, a synergistic effect with the third operation is obtained. Yes It is possible to increase the heating amount during additional cooking appropriately.

Further, the heating means 2 may be a duty control for turning on / off the heater or an inverter control for directly controlling the electric power as a means for varying the heating amount.

[0031]

As described above, according to the present invention, the cooking amount determination temperature necessary for burning rice is set by the cooking amount determination temperature setting means, and the cooking amount required for burning rice is set by the cooking temperature setting means. By setting the temperature and further increasing the heating amount by the additional cooking pattern setting means, when the user sets the burning function by the burning function setting means, when cooking, regardless of the amount of rice cooked Can be charred.

Further, by increasing the heating amount corresponding to the amount of cooked rice by using the cooked heat amount setting means, it is possible to more surely add the burntness at the time of cooking regardless of the amount of cooked rice.

[Brief description of the drawings]

FIG. 1 is a main configuration diagram of a rice cooker according to a first embodiment of the present invention.

FIG. 2 is a sectional view of the rice cooker

FIG. 3 is a first flowchart showing the operation of the rice cooker.

FIG. 4 is a second flowchart showing the operation of the rice cooker.

FIG. 5 is a main configuration diagram of a rice cooker according to a second embodiment of the present invention.

FIG. 6 is a first flowchart showing the operation of the rice cooker.

FIG. 7 is a second flowchart showing the operation of the rice cooker.

FIG. 8 is a relationship diagram showing the temperature detected by the conventional rice cooker with respect to time.

[Explanation of symbols]

 1 Pot 2 Heating Means 3 Temperature Detecting Means 4 Burning Function Setting Means 5 Rice Cooking Amount Judgment Temperature Setting Means 6 Boiler Temperature Setting Means 7 Additional Cooking Pattern Setting Means 8 Rice Cooking Control Means

Claims (2)

[Claims] 1. A pot for putting rice and water, a heating means for heating the pot, and a temperature detecting means for detecting the temperature of the pot,
Burning function setting means for setting the burning function, rice cooking amount determination temperature setting means for setting the cooking amount determination temperature for determining the cooking amount, cooking temperature setting means for setting the cooking temperature, and additional cooking pattern. The cooked rice which controls the heating means by using the output of the additional cooking pattern setting means, the temperature detection means, the rice cooking amount determination temperature setting means, the cooking temperature setting means and the additional cooking pattern setting means as input. Control means, the cooked rice amount determination temperature setting means sets a cooked rice amount determination temperature necessary for burning rice when the burn function is set by the burn function setting means, and the cooked temperature setting means Sets the cooking temperature required for burning the rice when the burning function is set by the burning function setting means, and the additional cooking pattern setting means sets the burning temperature. If the scorching function by ability setting means is set, rice cooker comprising set so as to increase the heating amount. 2. A pot for containing rice and water, a heating means for heating the pot, and a temperature detecting means for detecting the temperature of the pot.
Set the burning function setting means for setting the burning function, the cooking heating amount setting means for determining the heating amount in the cooking process, the cooking temperature setting means for setting the cooking temperature, and the additional cooking pattern. Additional cooking pattern setting means, rice temperature control means for controlling the heating means with the outputs of the temperature detecting means, the additional heating amount setting means, the additional heating temperature setting means and the additional heating pattern setting means as input. The cooking heat amount setting means sets the cooking heat amount necessary for burning rice when the burning function is set by the burning function setting means, and the cooking temperature setting means sets the burning temperature. When the burning function is set by the function setting means, the cooking temperature necessary for burning the rice is set, and the additional cooking pattern setting means sets the burning function setting hand. Cooker comprising set as if scorched function is set to increase the heating amount by.