JPH11304156A - Heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To select a plurality of operation modes according to the heated state of a food to be cooked regardless of boiling and non-boiling of the food to be cooked and besides to select a plurality of the operation modes only by operating a single operation switch, and to improve facility to a user without increasing a part cost. SOLUTION: A stop mode to stop operation of a heating means 3 when a food to be cooked is boiled and a timer mode to continuously stop operation of the heating means 3 for a given time in succession after the food 2 to be cooked is boiled are selectively switched by a single operation switch 17. When, before the food 2 to be cooked is boiled, the operation switch 17 is operated, the stop mode and the timer mode are selectively switched, and when the operation switch 17 is operated after the food 2 to be cooked is boiled, the operation switch 17 is operated, operation of the heating means 3 is stopped for a given time in succession.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating cooker, and more particularly, to a mode in which heating means for cooking food is provided, and the heating means is automatically stopped when the food (eg, water) boils; The present invention relates to an improvement in a heating cooker that can select and operate a mode in which a heating unit is automatically stopped after a predetermined time has elapsed from the time of boiling of a cooked food.

[0002]

2. Description of the Related Art Conventionally, for example, in a gas stove, a fire extinguishing mode (stop mode) in which a stove burner is extinguished when a food (eg, water) boils, and a predetermined state in which the boiling state is maintained after the food boils 2. Description of the Related Art There is known a timer mode for extinguishing a stove burner after a lapse of time, so that a user can select any mode when cooking food.

This type of gas stove includes a temperature detecting means for detecting the temperature of a container such as a pot in which food is cooked, and a cooking stove based on the temperature detected by the temperature detecting means in order to operate in each of the above modes. A boiling detection means for detecting the boiling of the object; and a timer for operating in the timer mode. Normally, the fire extinguishing mode is selected when boiling water is used, and when boiling is detected by the boiling detecting means, a buzzer or the like informs the user of the fire and extinguishes the stove. As a result, it is possible to prevent the user from inadvertently firing the battery, for example.
The timer mode is, for example, a mode selected when cooking instant noodles, etc., and when boiling is detected by the boiling detecting means, the user is notified by a buzzer or the like and the fire is extinguished after a predetermined time. If the noodles are put into the boiling water by the notification, the boiling state can be maintained for a predetermined time and the stew can be made. The operating time of the timer in the timer mode is a time suitable for cooking instant noodles or the like (for example, 3 hours).
Minutes).

In this type of gas stove, an operation switch for selecting the fire extinguishing mode is provided.
An operation switch for selecting the timer mode is provided separately, and the user can operate in a required mode by operating any operation switch. When the user intentionally does not operate any of the operation switches, the operation in both modes is not performed, and the user himself extinguishes the stove burner after boiling the food or boiling for a desired time. Driving.

However, providing a plurality of operation switches for setting each mode separately not only increases the component cost but also makes it difficult to secure a space for installing each switch on the gas stove. is there.

Therefore, the present inventors have provided a single operation switch for switching and selecting between the fire extinguishing mode and the timer mode. Each time the user operates this operation switch, the fire extinguishing mode and the timer mode are switched. I thought about making it switch.

More specifically, the operation switch is a so-called momentary switch. When pressed once (first time), the fire extinguishing mode is selected first, and when pressed again (second time), the timer mode is selected. The fire extinguishing mode and the timer mode are sequentially switched each time the button is pressed once thereafter. Here, the fire extinguishing mode is selected first because the fire extinguishing mode is generally used more frequently than the timer mode.

By the way, when the stove burner is ignited,
The user sometimes forgets to operate the operation switch for selecting the timer mode even though the user wants to operate in the timer mode.

In this case, if the user notices before boiling the cooked food, the operation in the timer mode may be performed by operating the operation switch twice. However, if the user has already forgotten to operate the operation switch after the food has boiled, when the fire extinguishing mode is selected by the first operation of the operation switch, the stove is turned off by detecting the boiling. Operation in the timer mode cannot be performed.
There is a disadvantage that the usability is extremely poor for the user.

[0010]

SUMMARY OF THE INVENTION In order to solve such inconvenience, the present invention makes it possible to select a plurality of operation modes according to the heating state of the food, regardless of whether the food is boiling or not. It is an object of the present invention to provide a heating cooker which can be operated and can be selected by operating a single operation switch only by operating a single operation switch, and which is easy for a user to use without increasing parts costs.

[0011]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a heating means for heating a food contained in a cooking container, a boiling detecting means for detecting a boiling of the food,
A timer for operating the heating means for a predetermined time, an operation in a stop mode for stopping the operation of the heating means when the boiling of the food is detected by the boiling detection means, and
An operation control means for selectively performing an operation in a timer mode in which the operation of the heating means is continued by the timer and stopped after the boiling of the food is detected. And a single operation switch that is operated when switching and selecting the timer mode, wherein the operation control means, when the operation switch is operated before the food boils, every operation of the operation switch When the stop mode and the timer mode are sequentially selected in the order of the timer mode, the operation is performed in the selected mode, and when the operation switch is operated after the food is boiled, the operation of the heating means is controlled by the timer. , And an operation of stopping after the predetermined time is performed.

According to the present invention, the user operates the operation switch as needed. The operation control means enters a stop mode or a timer mode according to the operation of the operation switch by the user when the food is not boiled.
There is a single operation switch, and each time the operation is performed, both modes can be sequentially switched and selected in the order of the stop mode and the timer mode. Further, the operation control means does not enter the stop mode when the food has already boiled when the user operates the operation switch, and the timer starts the operation of the heating means for a predetermined time from the time of operation of the operation switch. The heating is continued, and when the time has elapsed, the heating by the heating means is stopped.

As described above, by providing the operation control means, even if the operation switch is operated after the boiling, the heating can be continued for a predetermined time by the timer. Noticing that the user has forgotten, it is possible to respond to the user's request to continue the operation by the timer.

Further, the operation control means selects a stop mode, a timer mode, and a continuous operation by the timer depending on whether the food is before boiling or after boiling. A single operation switch is sufficient, and the space for providing the operation switch can be reduced without increasing the cost of parts.

Further, in the present invention, the timer has a plurality of operating times, and each operating time of the timer can be freely switched by operating the operation switch, and the timer is selected by operating the operation switch. Display means for displaying the operation time of the timer is provided.

Thus, in the timer mode, the operating duration of the heating means can be selected from a plurality of operating times only by operating a single operation switch. When the switch is operated, the operation continuation time of the heating means by the timer can be selected.

In addition, since the operating time of the selected timer is displayed by the display means, the user can surely confirm whether the operating time of the selected timer is correct according to the food. Wear.

[0018]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram showing a schematic configuration of the present embodiment, and FIGS. 2 and 3 are flowcharts showing the operation of the present embodiment.

FIG. 1 schematically shows a gas stove A which is a heating cooker according to the present embodiment.
In the figure, 1 is a pot as a cooking vessel, 2 is a cooked product stored in the pot 1, and 3 is a stove burner as a heating means. The stove burner 3 has a gas supply pipe 5 provided with an original solenoid valve 4.
Is connected to the gas supply pipe 5, and a bypass path 6
And a bypass solenoid valve 7. Fuel gas is supplied to the stove burner 3 via a gas supply pipe 5 and a bypass 6. In FIG. 1, reference numeral 8 denotes a temperature sensor as temperature detecting means for detecting the temperature of the pan 1, and 9 denotes a CP.
A controller 10 which is an electronic unit composed of U, ROM, RAM and the like is an operation panel for instructing the controller 9 to operate.

The controller 9 includes operation control means 11,
Boiling detection means 12, display control means 13, notification control means 1
4 is provided. The operation control means 11 controls the heating power of the stove burner 3 by driving the original solenoid valve 4 and the bypass solenoid valve 7. The operation control means 11 includes a timer 15 therein. The boiling detecting means 12 in the present embodiment detects the boiling of the food 2 based on the temperature information detected by the temperature sensor 8. To briefly explain the operation of the boiling detecting means 12 at this time, the boiling detecting means 12 determines a temperature in a predetermined rising region (hereinafter referred to as a boiling detecting temperature) in a process of increasing the temperature of the pan 1. The temperature of the cooking sensor 2 is monitored by the temperature sensor 8 to determine the boiling of the food 2 from the temperature gradient of the boiling detection temperature range (for example, the relationship between the boiling detection temperature range of 70 ° C. to 90 ° C. and the passage of time). Note that the boiling detecting means 12 is always detected regardless of the selection of the water-pruning mode. For example, after the temperature detected by the temperature sensor 8 exceeds the boiling-detection temperature range and the boiling is detected, the water-plowing described later is performed. Even when the switch 17 is operated, it is possible to confirm whether boiling has been detected before the switch 17 is operated. Also,
A buzzer 16 for notifying the user is connected to the notification control means 14.

The operation panel 10 is provided with an operation unit 19 having a water switch 17 as an operation switch and a cancel switch 18 operated when canceling the operation of the water switch 17. The water heater switch 17 and the cancel switch 18 are so-called momentary switches that are turned on only when pressed.

The operation unit 19 further includes a boiling fire extinguishing LED 20 which is turned on in conjunction with the operation of the water heater switch 17.
A 3-minute fire extinguishing LED 21 and a 10-minute fire extinguishing LED 22 are provided. The operation panel 10 is connected to the controller 9, and operation signals of the respective switches 17 and 18 are input to the operation control unit 11, and the respective LEDs 20, 21 and 22 are operated.
Turning on / off of 2 is controlled by the display control means 13 according to a signal from the operation control means 11.

As will be described in detail later, when the user operates the water repelling switch 17, the operation control means 11 enters the water repelling cooking mode. In the hot water cooking mode, each time the user operates the hot water switch 17, the hot water mode is set to the boiling fire extinguishing mode (stop mode) in which the combustion of the stove burner 3 is stopped immediately upon detection of boiling, and the bypass electromagnetic after the boiling detection. 3 minutes fire extinguishing mode as a timer mode for keeping the food 2 warm for 3 minutes while extinguishing the fire by opening and closing the valve 7 to prevent fire spills, and opening and closing the bypass solenoid valve 7 after boiling detection to prevent spills The mode is sequentially switched to a 10-minute fire extinguishing mode as a timer mode for extinguishing the fire by keeping the object 2 warm for 10 minutes. And
The operation control means 11 controls the boiling and extinguishing L according to the setting of each switched mode via the display control means 13.
ED20, 3-minute fire extinguishing LED21, 10-minute fire extinguishing LED22
Light one of.

Incidentally, when the user operates the cancel switch 18, the operation control means 11 stops the execution of the above-mentioned hot water cooking mode.

Here, the control by the operation control means 11 will be described in more detail with reference to FIGS. As shown in FIG. 2, when the stove burner 3 is ignited in STEP1, first, the flag F is set to "0" in STEP2. Next, the process proceeds to STEP4 only when the water repelling switch 17 is operated in STEP3. Here, when the water heater switch 17 is not operated, the so-called manual operation in which the combustion by the stove burner 3 is continued until the fire is extinguished by the user.

In STEP 4, the operation control means 1
In step 1, if the temperature sensor 8 has not yet detected boiling, it is checked in step 5 whether the flag F is "0". If the flag F is "0", STEP
In step 6, the boiling fire extinguishing LED 20 is displayed via the display control means 13.
Is turned on, and the flag F is set to “1” in STEP 7 and ST
Proceed to EP8. Thus, the operation in the boiling fire extinguishing mode is performed.

In STEP 8, the boiling detection by the boiling detecting means 12 is performed. If no boiling is detected, the process proceeds to STEP 9. In STEP 9, when the water repelling switch 17 is operated, the process proceeds to STEP 5, but since the flag F has already been set to “1” by STEP 7,
Go to STEP10. The flag F is "1" in STEP10
If so, the extinguishing LED 21 is turned on for 3 minutes via the display control means 13 in STEP 11, and the flag F is set to “2” in STEP 12. Next, in step 13, the timer 15
Is set to 3 minutes (timer set time TM = 3),
Proceed to TEP8. Thus, the operation in the three-minute fire extinguishing mode is performed.

Here, if no boiling is detected in STEP 8 and the water repelling switch 17 is operated, the flag F is already set to "2" by STEP 12, and the process proceeds to STEP 14. In STEP 14, the fire extinguishing LED 22 is turned on for 10 minutes via the display control means 13, and the flag F is set to "0" in STEP 15. Next, in step 16, the timer 15 is set to 10 minutes, and the process proceeds to step 8. Thus, the operation in the 10-minute fire extinguishing mode is performed.

As described above, when the boiling switch 17 is operated before the boiling is detected in STEP 4 and the boiling is not detected in STEP 8, the boiling is performed every time the boiling switch 17 is operated. Hour fire extinguishing mode, timer mode 3 minute fire extinguishing mode,
The mode is switched to the 10-minute fire extinguishing mode, which is the timer mode.

Thereafter, when boiling is detected in STEP 8, the flag F is set to "1" in STEP 17.
Then, since the fire extinguishing mode at the time of boiling is selected,
Proceed to TEP18. In STEP 18, the operation control means 11 closes the original solenoid valve 4 and extinguishes the stove burner 3. At this time, the buzzer 16 is sounded in STEP 19 to notify the user of the fire extinguishing, and in STEP 20, the boiling extinguishing LE
D20 is turned off, and the operation of the gas stove 3 is terminated.

If the boiling is detected in STEP 8 and the flag F is not “1” in STEP 17, the 3-minute fire extinguishing mode or the 10-minute fire extinguishing mode is selected. The user is informed of the boiling, and the timer 15 is started in STEP22. Note that STEP 21 is not necessarily provided. However, STEP 21 has a function of notifying the user of the boiling, for example, when the cooking material is added after the boiling of the hot water, so that for the user, It is convenient for knowing when to put cooking ingredients.

Next, in STEP 23, the operation control means 11 opens and closes the bypass solenoid valve 7, switches the combustion of the gas stove 3 to a large fire or a small fire as appropriate, and maintains the boiling state of the cooked food while preventing spills and the like. The so-called temperature control is started, and the process proceeds to STEP24. In STEP24,
STEP2 if 30 seconds before the set time of timer 15
Go to 5. In STEP 25, the buzzer 16 is sounded to inform the user that the time is up. The set time of the timer 15 is determined by the processing of STEP 13 or the S
The buzzer 16 sounds in 2 minutes and 30 seconds in the 3-minute fire extinguishing mode, and the buzzer 16 sounds in 9 minutes and 30 seconds in the 10-minute fire extinguishing mode. When the buzzer 16 is sounded and before the time is up in STEP 28, if the water heater switch 17 is operated, two minutes can be added to the set time of the timer 15 (STEPs 26 to 27). .

Then, when the time is up in STEP 28, that is, in the case of the 3-minute fire extinguishing mode, 3 minutes, 10 minutes
In the case of the minute fire extinguishing mode, the operation control means 11 terminates the operation of the gas stove 3 through the processes in STEPS 18 to 20 when the time is added in 10 minutes when the time is added in STEP 27 and when the added time is reached.

If it is determined in STEP 4 that boiling has already been detected, the operation control means 11 enters the flow shown in FIG. 3 and proceeds to STEP 29.

The boiling detecting means 12 does not extinguish the fire immediately if the operation of the water heater switch 17 is before the detection of the boiling, even if the fire extinguishing mode is selected. By operating the timer mode, the timer mode can be reliably set. However, if the operation of the water heater switch 17 is after the detection of boiling, the fire is extinguished when the fire extinguishing mode is selected by the operation, and the timer mode cannot be selected.

Therefore, according to the present invention, the operation of STEP 2 (shown in FIG. 2) is performed by operating
At 9, the timer 15 starts counting time. That is, entering into the fire extinguishing mode at the time of boiling is prohibited. And STEP3
If the flag F is "0" at 0,
The processing of 31 to 33 is performed. The processing contents of STEPs 31 to 33 are the same as the processing contents of FIG. 11 (FIG. 2). In STEP33, 3 minutes is set as the initial setting time of the timer 15, and the process proceeds to STEP34. STE
In P34, the set time of the timer 15 (at this time, 3
If it is 30 seconds before the minute, proceed to STEP40.

Until 30 seconds before the set time (three minutes at this time) in STEP 34, the operation of the water heater switch 17 is confirmed in STEP 35.
If the flag F is not “0” at 0,
Proceeding to 36, if the flag F is “2”, the processing of STEPS 37 to 39 is subsequently performed. STEP37-39
Are the same as the processing contents of STEPs 14 to 16 (FIG. 2).

When it is 30 seconds before the set time (3 minutes or 10 minutes) in STEP 34, the STE
Proceed to P40.

In STEP 40, the buzzer 16 is sounded to inform the user that the time is up. STE
Between the time the buzzer 16 sounds at P40 and the time-up at STEP 43, two minutes can be added to the set time of the timer 15 at STEPs 41 to 42.

Then, when the time is up in STEP 43, the operation control means 11 performs the processing in STEPs 44 to 46.
The original electromagnetic valve 4 is closed by the processing described above, the buzzer 16 is sounded to notify the user of fire extinguishing, and the fire extinguishing LED 21 or 10
The minute fire extinguishing LED 22 is turned off, and the operation of the gas stove 3 is terminated.

In the above-described embodiment, the boiling detecting means 1 is always on regardless of whether or not the water heater mode is selected.
2 is operated, but, for example, in the apparatus which determines the boiling state by comparing the detected temperature with a predetermined temperature, whether or not the boiling state is reached at the time when the water switch 17 is operated is determined. Therefore, it is not necessary to always operate the boiling detecting means 12.

In the above-described embodiment, the temperature control is performed by switching between the large fire and the small fire after the detection of the boiling. However, the large fire may always be used.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a schematic configuration of an embodiment.

FIG. 2 is a flowchart showing a part of the operation of the embodiment.

FIG. 3 is a flowchart showing a part of the operation of the embodiment.

[Explanation of symbols]

A: gas stove (heating cooker), 1 ... pan (cooking container),
2 ... Cooked food, 3 ... Stove burner (heating means), 8 ... Temperature sensor (temperature detecting means), 11 ... Operation control means, 12 ...
Boiling detection means, 15: timer, 17: operation switch.

Claims (2)

[Claims] 1. A heating means for heating food in a cooking vessel, a boiling detection means for detecting the boiling of the food, a timer for operating the heating means for a predetermined time, and a food by the boiling detection means. An operation in a stop mode in which the operation of the heating means is stopped when the boiling of the food is detected, and an operation in a timer mode in which the operation of the heating means is continued and stopped by the timer after the boiling of the food is detected. In a heating cooker comprising operation control means that can be selectively performed, a single operation switch that is operated when switching and selecting the stop mode and the timer mode is provided, wherein the operation control means If the operation switch is operated before the thing boils, the stop mode and the timer mode are sequentially selected in each operation of the operation switch. Together, performs operation according to the selected mode, when said operation switch is operated after the food was boiling, the operation of the heating means is continued by the timer,
A cooking device characterized by performing an operation of stopping after a predetermined time. 2. The timer has a plurality of operating times, and each operating time of the timer can be switched by operating the operation switch. The operation of the timer selected by the operation of the operation switch 2. The cooking device according to claim 1, further comprising display means for displaying time.