JP3535379B2 - Cooking device - Google Patents

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 a 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 of a heating cooker capable of selecting and operating a mode in which the heating means is automatically stopped after a predetermined time has elapsed from the time when the food to be boiled.

[0002]

2. Description of the Related Art Conventionally, for example, in a gas stove, a fire extinguishing mode (stop mode) for extinguishing the cooker when the cooked material (for example, water) boils, and a predetermined state of maintaining the boiled state after the cooked material boils It is known that a timer mode for extinguishing the stove burner after a lapse of time is provided so that the user can select one of the modes when cooking the food.

This type of gas stove is operated based on the temperature detected by the temperature detecting means for detecting the temperature of a container such as a pot containing the food to be operated in order to operate in each of the above modes. It is provided with a boiling detection means for detecting boiling of an object, and is also provided with a timer for operating in the timer mode. Normally, the fire extinguishing mode is selected when boiling hot water, and when boiling is detected by the boiling detecting means, a buzzer or the like notifies the user to extinguish the stove burner. With this, it is possible to prevent the user from being inadvertently heated.
The timer mode is, for example, selected when cooking instant noodles, etc., and when boiling is detected by the boiling detection means, it is a mode in which the user is notified by a buzzer and the fire is extinguished after a predetermined time. If the ramen is poured into boiling water according to the notification, it can be boiled while maintaining the boiling state for a predetermined time. In addition, the operating time of the timer in the timer mode is a time suitable for cooking instant noodles (for example, 3
Minutes) is preset.

By the way, in this type of gas stove, an operation switch for selecting the fire extinguishing mode,
An operation switch for selecting the timer mode is provided separately, and the user can operate the operation switch in any desired mode by operating one of the operation switches. Further, when the user intentionally does not operate any of the operation switches, the operation in both modes is not performed, and a so-called manual operation in which the user extinguishes the stove burner after boiling the cooked food or boiling for a desired time It will be driving.

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

Therefore, the present inventors provide a single operation switch for switching and selecting the fire extinguishing mode and the timer mode, and the fire extinguishing mode and the timer mode are switched each time the user operates the operation switch. I thought of making it switch.

Specifically, the operation switch is a so-called momentary switch, and when it is pressed once (first time), the fire extinguishing mode is first selected, and when it is pressed once 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. Here, the fire extinguishing mode is first selected 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 may forget to operate the operation switch for selecting the timer mode even though the user desires the operation in the timer mode.

In this case, if the user notices before the food is boiled, the operation switch may be operated twice to perform the operation in the timer mode. However, if the user notices that he has forgotten to operate the operation switch after the food has already boiled, the stove burner is extinguished by the detection of boiling when the fire extinguishing mode is selected by the first operation of the operation switch. Therefore, the operation in the timer mode cannot be performed,
There is an inconvenience that it is extremely inconvenient for the user.

[0010]

In order to solve such inconvenience, the present invention can select a plurality of operation modes depending on the heating state of the cooked food regardless of the boiling state or the non-boiling state of the cooked food. It is an object of the present invention to provide a heating cooker which can be selected and can be selected from a plurality of operation modes only by operating a single operation switch, and which is convenient for the user without increasing the cost of parts.

[0011]

In order to achieve such an object, the present invention provides a heating means for heating a cooked food contained in a cooking container, and a boiling detection means for detecting boiling of the cooked 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
A heating cooker comprising: an operation control unit capable of selectively performing an operation in a timer mode in which the operation of the heating unit is continued by the timer and stopped after the boiling of the cooked food is detected. A single operation switch that is operated when switching between the timer mode and the timer mode is selected, and the operation control means, when the operation switch is operated before the food is boiled, for each operation of the operation switch. In the stop mode, the timer mode is sequentially selected, the operation in the selected mode is performed, and when the operation switch is operated after boiling of the cooked material, the operation of the heating means is performed by the timer. It is characterized in that the operation is continued by the above, and is stopped after the predetermined time.

According to the present invention, the user operates the operation switch as needed. The operation control means enters the stop mode or the timer mode according to the operation of the operation switch by the user before the food is boiled.
A single operation switch is provided, and each mode can be selected by sequentially switching between the two modes in the order of stop mode and timer mode. Further, the operation control means, if the food is already boiling when the user operates the operation switch, the operation control means does not enter the stop mode, and the timer keeps the heating means of the heating means for a predetermined time from the operation of the operation switch. The heating is continued, and when the time elapses, 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 boiling, the heating can be continued for a predetermined time by the timer, so that the operation switch can be operated after boiling the cooked food. It is possible to respond to the user's request that he / she forgets that he / she has forgotten and wants to continue the continuous operation by the timer.

Further, the operation control means selects the stop mode, the timer mode, and the continuous operation by the timer depending on whether the cooked food is before boiling or after boiling. A single operation switch may be used, the cost for parts is not increased, and the space for providing the operation switch can be reduced.

Further, in the present invention, the timer has a plurality of operating times, each operating time of the timer can be switched by operating the operating switch, and is selected by operating the operating switch. Display means for displaying the operating 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 simply by operating a single operating switch, and the operation can be performed after boiling. Even when the switch is operated, the operation duration of the heating means can be selected by the timer.

Moreover, since the operating time of the selected timer is displayed by the display means, the user can surely confirm whether or not the operating time of the timer selected according to the food is correct. Wear.

[0018]

DETAILED DESCRIPTION OF THE INVENTION 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 this embodiment, and FIGS. 2 and 3 are flowcharts showing the operation of this embodiment.

FIG. 1 schematically shows the gas stove A which is the heating cooker of the present embodiment.
In the figure, 1 is a pan serving as a cooking container, 2 is a food item contained in the pan 1, and 3 is a stove burner serving as a heating means. In the stove burner 3, a gas supply pipe 5 having an original solenoid valve 4 is provided.
Is connected to the gas supply pipe 5, and a bypass 6
And a bypass solenoid valve 7 are connected. Fuel gas is supplied to the stove burner 3 through the gas supply pipe 5 and the bypass passage 6. Further, in FIG. 1, 8 is a temperature sensor as a temperature detecting means for detecting the temperature of the pot 1, and 9 is 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 comprises an operation control means 11,
Boiling detection means 12, display control means 13, notification control means 1
It is equipped with 4. The operation control means 11 drives the original solenoid valve 4 and the bypass solenoid valve 7 to adjust the heating power of the stove burner 3. The operation control means 11 includes a timer 15 inside. The boiling detection means 12 in the present embodiment detects boiling of the cooked food 2 based on the temperature information detected by the temperature sensor 8. Briefly explaining the operation of the boiling detection means 12 at this time, the boiling detection means 12 determines the temperature in a predetermined rising region (hereinafter, referred to as boiling detection temperature) in the rising process of the temperature of the pot 1. The temperature sensor 8 is used for monitoring, and the boiling of the cooked food 2 is determined from the temperature gradient in 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). The boiling detection means 12 is always detected regardless of whether or not the boiling water mode is selected, and even if the temperature detected by the temperature sensor 8 exceeds the boiling detection temperature range and boiling is detected, the boiling water to be described later is detected. Even when the switch 17 is operated, it is possible to confirm whether or not 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 section 19 having a water removal switch 17 which is an operation switch, and a cancel switch 18 which is operated when the operation of the water removal switch 17 is canceled. The boiling water switch 17 and the cancel switch 18 are so-called momentary switches that are turned on only when the pressing operation is performed.

Further, the operation section 19 has a boiling fire extinguishing LED 20, which is turned on in association with the operation of the water-boiler 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, operation signals of the switches 17 and 18 are input to the operation control means 11, and the LEDs 20, 21 and 2 are respectively supplied.
Turning on / off of 2 is controlled by the display control means 13 in accordance with a signal from the operation control means 11.

The operation control means 11, which will be described in detail later, enters the boiling water cooking mode when the user operates the boiling water switch 17. In the boiling water cooking mode, each time the user operates the boiling water switch 17, the setting of the boiling water mode is to set the boiling water extinguishing mode (stop mode) in which the combustion of the stove burner 3 is immediately stopped when the boiling is detected, and the bypass electromagnetic after the boiling is detected. 3-minute fire extinguishing mode as a timer mode in which the valve 7 is opened and closed to prevent spillage while keeping the cooked food 2 warm for 3 minutes to extinguish, and the bypass solenoid valve 7 is opened and closed after boiling detection to prevent spillage and cooking is performed. The object 2 is sequentially switched to a 10-minute fire extinguishing mode as a timer mode in which the object 2 is kept warm for 10 minutes to extinguish the fire. And
The operation control means 11 causes the boiling fire extinguishing L according to the setting of each mode which is switched via the display control means 13.
ED20, 3 minutes extinguishing LED21, 10 minutes extinguishing LED22
Either of the lights.

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

Now, the control by the operation control means 11 will be described in more detail with reference to FIGS. 2 and 3. As shown in FIG. 2, when the stove burner 3 is ignited in STEP1, the flag F is set to "0" in STEP2. Next, in STEP 3, the process proceeds to STEP 4 only when the boiling water switch 17 is operated. Here, when the water boiling switch 17 is not operated, the so-called manual operation is performed in which the combustion by the stove burner 3 is continued until the user extinguishes the fire.

In STEP 4, the operation control means 1
When the boiling point is not detected by the temperature sensor 8, 1 checks in STEP 5 whether the flag F is "0". If the flag F is "0", STEP
6 through the display control means 13 boiling extinguishing LED20
Is turned on, and the flag F is set to “1” in STEP 7 and ST is set.
Proceed to EP8. As a result, the operation in the boiling extinguishing mode is performed.

At STEP 8, boiling detection is performed by the boiling detection means 12, and if boiling is not detected, the process proceeds to STEP 9. In STEP 9, when the water heating switch 17 is operated, the process proceeds to STEP 5, but since the flag F has already been set to "1" in STEP 7,
Proceed to STEP 10. The flag F is "1" in STEP10.
In that case, the fire 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), and S
Proceed to TEP8. As a result, the operation in the 3-minute fire extinguishing mode is performed.

Here, when boiling is not detected in STEP8 and the boiling water switch 17 is operated, the flag F has already been set to "2" in STEP12, so the process proceeds to STEP14. In STEP 14, the 10-minute fire extinguishing LED 22 is turned on via the display control means 13, and in STEP 15, the flag F is set to "0". Next, in STEP 16, the timer 15 is set to 10 minutes, and the process proceeds to STEP 8. As a result, the operation in the 10-minute fire extinguishing mode is performed.

Thus, when the boiling water switch 17 is operated before the boiling is detected in STEP 4 and the boiling is not detected in STEP 8, the boiling water is boiled each time the boiling water switch 17 is operated. Fire extinguishing mode, 3 minutes extinguishing mode which is timer mode,
It switches to the 10-minute fire extinguishing mode which is the timer mode.

After that, when boiling is detected in STEP 8, the flag F is set to "1" in STEP 17.
If so, since the fire extinguishing mode at boiling is selected, S
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, in STEP 19, the buzzer 16 is sounded to notify the user of the boiling extinction, and in STEP 20, the boiling extinction LE.
The D20 is turned off and the operation of the gas stove 3 is terminated.

If boiling is detected in STEP8 and flag F is not "1" in STEP17, the 3-minute fire extinguishing mode or the 10-minute fire extinguishing mode is selected, and the buzzer 16 is sounded in STEP21. The person is informed of the boiling, and the timer 15 starts the time counting in STEP22. The STEP 21 need not be provided, but since the STEP 21 has a function of notifying the user that boiling has occurred, for example, when the cooking material is put in after boiling water is boiled, It is convenient to know when to put cooking ingredients.

Next, at STEP 23, the operation control means 11 opens and closes the bypass solenoid valve 7 to appropriately switch the combustion of the gas stove 3 to a large fire or a small fire to prevent spillage and the like while maintaining the boiling state of the cooked food. So-called temperature control is started, and the process proceeds to STEP24. In STEP24,
If it is 30 seconds before the set time of the timer 15, STEP2
Go to 5. In STEP 25, the buzzer 16 is sounded to notify the user that the time is up. The set time of the timer 15 is the same as the processing of STEP 13 or 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 extinguishing mode. It should be noted that, if the water-washing switch 17 is operated between the time the beeper 16 sounds and the time is up in STEP 28, 2 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
When it is 10 minutes in the fire extinguishing mode or when the time has been added in STEP 27 if the time has been added, the operation control means 11 terminates the operation of the gas stove 3 through the processing of STEPs 18 to 20.

In STEP 4, if the boiling has already been detected, the operation control means 11 enters the flow shown in FIG. 3 and proceeds to STEP 29.

Since the boiling detection means 12 does not extinguish the fire immediately even when the boiling fire extinguishing mode is selected, if the operation of the water boiling switch 17 is before the boiling is detected, the boiling water boiling switch 17 is operated twice or three times. If operated, the timer mode can be surely set. However, if the boiling water switch 17 is operated after the boiling is detected, the operation causes the fire to be extinguished when the boiling fire extinguishing mode is selected, and the timer mode cannot be selected.

Therefore, in the present invention, the operation of STEP 2 (shown in FIG. 2) is used to operate STEP 2
At 9, the timer 15 starts counting. That is, entering the fire extinguishing mode during boiling is prohibited. And STEP3
If the flag F is "0" at 0, then STEP is performed.
31-33 processing is performed. The processing contents of STEPs 31 to 33 are the same as the processing contents of STEPs 11 to 13 (shown in FIG. 2). In STEP 33, 3 minutes is set as the initial setting time of the timer 15, and the process proceeds to STEP 34. STE
In P34, the set time of the timer 15 (3 at this point)
30 seconds before (minute), proceed to STEP 40.

In STEP 34, the operation of the water heating switch 17 is confirmed by STEP 35 by 30 seconds before the set time (3 minutes at this time), and STEP 3
If the flag F is not "0" at 0, STEP
If the flag F is “2”, the process proceeds to steps 37 to 39. STEP37-39
The processing content of is the same as the processing content of STEPS 14 to 16 (shown in FIG. 2).

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

At STEP 40, the buzzer 16 is sounded to inform the user that the time is up. STE
Two minutes can be added to the set time of the timer 15 by STEPs 41 to 42 between the sounding of the buzzer 16 at P40 and the time up at STEP 43.

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

It should be noted that in the above embodiment, the boiling detecting means 1 is always operated regardless of whether or not the boiling water mode is selected.
2 has been operated, for example, in the case of determining the boiling state by comparing the detected temperature with a predetermined temperature, whether or not the boiling state is in the boiling state when the boiling water switch 17 is operated. Since it can be detected, it is not necessary to operate the boiling detection means 12 at all times.

Further, in the above-described embodiment, the temperature control is performed by switching between the large fire and the small fire after the boiling is detected, but the large fire may be always used.

[Brief description of drawings]

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

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

FIG. 3 is a flowchart showing a part of the operation of the present 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 detection means), 11 ... Operation control means, 12 ...
Boiling detection means, 15 ... Timer, 17 ... Operation switch.

Claims (2)

(57) [Claims] 1. A heating means for heating a cooked food contained in a cooking container, a boiling detection means for detecting boiling of the cooked food, a timer for operating the heating means for a predetermined time, and a cooked food by the boiling detection means. The operation in the stop mode in which the operation of the heating means is stopped when the boiling of is detected, and the operation in the timer mode in which the operation of the heating means is stopped by the timer after the boiling of the cooked food is detected. In a heating cooker provided with an 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, and the operation control means is a cooking device. When the operation switch is operated before the object boils, the stop mode and the timer mode are sequentially selected for 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 heating cooker, which is operated to stop after the predetermined time. 2. The timer has a plurality of operating times, each operating time of the timer can be switched by operating the operating switch, and the operating of the timer selected by operating the operating switch. The cooking device according to claim 1, further comprising display means for displaying time.