JP4139270B2 - Cooking device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cooking device such as a gas stove.
[0002]
[Prior art]
The gas stove is equipped with a safety device that automatically extinguishes the flame of the gas burner after a certain period of time even if the user has forgotten to extinguish the flame of the gas burner despite the completion of the predetermined heating cooking ( For example, see Patent Document 1.)
[0003]
This safety device measures the time from the ignition (cooking start) time of the flame of the gas burner, and if the flame of the gas burner is not extinguished even if the measurement time reaches a predetermined time, the gas consumption is reduced. The fire of the gas burner is automatically extinguished for waste prevention and safety.
[0004]
[Patent Document 1]
Japanese Examined Patent Publication No. 4-50489 [0005]
[Problems to be solved by the invention]
By the way, in the above-described conventional gas stove safety device, the timer time to start measurement from the ignition of the gas burner flame (cooking start) is fixed to a fixed time. In general, in consideration of cooking that requires a long cooking time such as boiled food cooking, the timer time is set to a long time of about 2 hours.
[0006]
However, in oil cooking such as fried food and fried food, the cooking time is significantly shorter than in the case of water cooking such as boiled food, and the timer time is shortened (for example, 30 minutes) to prevent waste of gas consumption and safety. In the conventional gas stove, the timer time cannot be changed in accordance with oil cooking or water cooking, although it is necessary to set it to the extent.
[0007]
Then, this invention aims at providing the cooker which can change the timer time which starts measurement from the time of the heating operation of a heating source to an appropriate time according to oil cooking or water cooking.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a cooking device that heats a cooking container with heating means to cook a food in the cooking container, and is in contact with an outer bottom surface of the cooking container so that the cooking container during cooking is used. Temperature detecting means for detecting the temperature of the heating means, and control means for stopping the heating operation of the heating means when a predetermined timer time elapses from the start of the heating operation of the heating means, the control means comprising the temperature detection Based on the temperature information input from the means, it is determined whether cooking by the cooking container is water or oil cooking, and heating of the heating means is performed depending on whether the determined cooking is water cooking or oil cooking. set the timer time until stopping the operation respectively, the control means, when said cooking by the cooking vessel based on the temperature information input from the temperature sensing means is determined to oil was cooked, the motor And the control means determines that cooking by the cooking container is oil cooking based on temperature information input from the temperature detection means, After setting the timer time to a timer time shorter than the case of cooking water, if it is determined from the temperature information input from the temperature detection means that there has been a temperature fluctuation due to fried food cooking, the set timer The time is extended by a predetermined time .
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on the illustrated embodiments.
[0012]
FIG. 1 is a schematic cross-sectional view showing a gas stove as a cooking device according to an embodiment of the present invention. In the gas stove 1 according to the present embodiment, the stove main body 2 is suspended by the flange portion 4 around the opening periphery of the countertop 3, and the upper surface opening 5 of the stove main body 2 has a circular opening 8a facing the gas burners 6 and 7. , 8b are covered with a top plate 8 formed thereon. In the present embodiment, only the gas burner 6 side having the temperature sensor 9 described below will be described.
[0013]
Inside the burner cap 6a of the gas burner 6, a temperature sensor 9 that can move up and down is arranged so that the tip side protrudes from the tip of the burner cap 6a. The temperature sensor 9 is in contact with the bottom of the pan 11 as a cooking container placed on the virtues 10 and detects the temperature in the pan 11 during cooking. The temperature sensor 9 is always urged upward by a coiled spring (not shown) provided therein, and is in contact with the bottom of the pan 11 stably.
[0014]
Further, the gas burner 6 is provided with a thermocouple (thermocouple) 12 for detecting the presence or absence of a flame exiting from the flame hole 6b with its tip close to the flame hole 6b, and an ignition electrode 13 for ignition.
[0015]
The gas burner 6 has a gas flow rate adjustment unit 15 having a gas flow rate adjustment valve (not shown) provided in a conduit 14 connected to the gas burner 6 at one end side, and a gas flow rate control unit 16 having an original gas valve and an electromagnetic opening / closing valve 23. Is connected to the gas supply pipe 17. The gas flow rate adjusting unit 15 is provided with a flow rate adjusting lever 18 for adjusting a degree of opening of a gas flow rate adjusting valve (not shown) by a user's sliding operation to adjust to a desired thermal power.
[0016]
An ignition / extinguishing button 19 is in contact with the gas flow rate adjusting unit 15 via a cam mechanism (not shown), and when the user presses the ignition / extinguishing button 19, the original gas valve is opened and electromagnetic The on-off valve 23 is held open, and the gas is ignited through the flame hole 6 b of the gas burner 6 by the energized ignition electrode 12. When the ignition / extinguish button 19 is pressed again, the original gas valve is closed and the flame in the flame hole 6b of the gas burner 6 is extinguished.
[0017]
The temperature information of the pan (cooking vessel) 11 detected by the temperature sensor 9 is input to the control device 21 via the signal line 20. Based on the temperature information input from the temperature sensor 9 (for example, depending on the presence or absence of a temperature equilibrium state at about 100 ° C.), the control device 21 prepares oil cooking (fried food, fried food, etc.) or water cooking (boiled food etc.) ) Is determined, and a timer time is set until the flame that has been started from the time of gas ignition and the flame exiting from the flame hole 6b is automatically extinguished when a predetermined time elapses (details will be described later).
[0018]
The thermocouple 12 is connected to the control device 21 via a lead wire (not shown), and the gas flow rate control unit 16 is connected to the control device 21 via a lead wire 22. When a flame is emitted from the flame hole 6b by ignition, an electromotive force is generated in the heated thermocouple 12, and this electromotive force is input to the control device 21 via a lead wire (not shown). The control device 21 outputs an open signal (adsorption current) to the gas flow rate control unit 16 via the lead wire 22 based on the input signal (electromotive force), and holds the electromagnetic opening / closing valve 23 in the valve open state.
[0019]
Further, when the flame in the flame hole 6b is extinguished, no electric signal (electromotive force) is output from the thermocouple 12, and no adsorption current is output from the control device 21, so that the electromagnetic on-off valve 23 is closed. Further, even when the flame disappears for some reason, similarly, the electromotive force generated in the thermocouple 12 becomes equal to or less than a predetermined value, so that the electromagnetic on-off valve 23 is closed and the gas supply is stopped.
[0020]
Next, the setting procedure by the control device 21 of the timer time from the time of gas ignition until the execution of automatic fire extinguishing in the embodiment of the present invention will be described with reference to the flowchart shown in FIG.
[0021]
When cooking with the gas stove 1 described above, first, the user presses the ignition / fire extinguishing button 19 to open the original gas valve and the electromagnetic on-off valve 23 to be kept open, and the ignition electrode 13 that is energized. Thus, the gas is ignited through the flame hole 6b of the gas burner 6 (step S1). From this point, the measurement of the timer time is started. The cooking in the pan 11 placed on the virtues 10 is started by the flame coming out of the flame hole 6b by this ignition.
[0022]
And the temperature sensor 9 which touches the bottom part of the pan 11 detects the temperature in the pan 11 at the time of cooking. Based on the detected temperature information input from the temperature sensor 9, the control device 21 determines whether it is oil cooking (fried food etc.) or water cooking (boiled food etc.) (step S2).
[0023]
That is, when cooking with water such as boiled food, the boiling temperature of water is about 100 ° C. as shown in FIG. 3 (a). Does not go up. On the other hand, the temperature of the oil is set at about 170 to 200 ° C. as shown in FIG. Therefore, when the detected temperature input from the temperature sensor 9 is about 100 ° C. and the temperature equilibrium state is detected, the control device 21 determines that the food is cooked, and the detected temperature input from the temperature sensor 9 is 100 ° C. In the above case, it can be determined that the cooking is oily.
[0024]
And in step S2, when the control apparatus 21 judges that cooking at this time is cooking with water based on detected temperature, the timer time which starts measurement from said ignition (cooking start) is set to the length of cooked food etc. In consideration of cooking that requires a long cooking time, a longer two hours are set (step S3). If the user has not performed a fire extinguishing operation to extinguish the flame of the flame hole 6b by pressing the ignition / extinguishing button 19 while the timer time (2 hours) has elapsed (step S4), the control device 21 Determines whether the timer has reached the set time of 2 hours and the time is up (step S5).
[0025]
In step S5, when 2 hours as the timer time elapses and the time is up, a signal is output to the gas flow rate control unit 16 to close the electromagnetic on-off valve 23, which is automatically used for preventing waste of gas consumption and for safety. Thus, the flame of the gas burner is extinguished (step S6).
[0026]
In step S4, if the user performs a fire extinguishing operation to extinguish the flame in the flame 6b by pressing the ignition / extinguishing button 19 while the timer time (2 hours) has elapsed, the original gas valve is turned on. The valve is closed and the flame is extinguished (step S6). In step S5, if the timer time (2 hours) has not expired, the process returns to step S4.
[0027]
In step S2, if the control device 21 determines that cooking at this time is oil cooking based on the detected temperature, the timer time to start measurement from the above ignition (cooking start) is set to fried food or fried food. In consideration of the fact that it is cooked in a short time like the above, it is set to a short 30 minutes (step S7). And during this oil cooking, the control apparatus 21 determines whether the value of the detected temperature input from the temperature sensor 9 has a fluctuation | variation (step S8).
[0028]
That is, as shown in FIG. 4, when there is a fluctuation in the detected temperature, the pan 11 is separated from the temperature sensor 9 by the pan-shaking operation when the pan 11 is fried and cooked in the vertical and horizontal directions. When cooking such fried foods, the cooking time often becomes long. Further, when there is almost no change in the detected temperature value input from the temperature sensor 9, it is during fried food cooking, and when such fried food cooking is performed, the cooking time is often short.
[0029]
If there is no change in the detected temperature value in step S8 and the user has not performed a fire extinguishing operation to extinguish the flame in the flame hole 6b by pressing the ignition / extinguishing button 19 (step S9), the control device 21 Then, it is determined whether or not the timer time has reached the set 30 minutes and the time is up (step S10). In step S10, when the timer time of 30 minutes elapses and the time is up, a signal is output to the gas flow rate control unit 16 to close the electromagnetic on-off valve 23, which is automatically used for preventing gas consumption waste and safety. Thus, the flame of the gas burner is extinguished (step S11).
[0030]
Further, in step S9, when the detected temperature value does not change while the timer time (30 minutes) has elapsed, the user presses the ignition / extinguishing button 19 to perform a fire extinguishing operation for extinguishing the flame in the flame hole 6b. If so, the original gas valve is closed and the flame is extinguished (step S11). In step S10, if the timer time (30 minutes) has not expired, the process returns to step S9.
[0031]
In step S8, when it is determined that the detected temperature value varies as described above, the control device 21 extends the timer time set to 30 minutes so as not to extinguish during cooking. For example, it is changed to 1 hour (step S12). Thereby, even when oil cooking is performed for a long cooking time, it is possible to prevent the fire from being automatically extinguished during the cooking by reaching the timer time.
[0032]
When the extended timer time (1 hour) has elapsed, if the user has not performed a fire extinguishing operation to extinguish the flame in the flame hole 6b by pressing the ignition / extinguishing button 19 (step S13), the control device 21 Determines whether the timer has reached the set time of 1 hour and the time is up (step S14).
[0033]
In step S14, when one hour which is the timer time elapses and the time is up, a signal is output to the gas flow rate control unit 16 to close the electromagnetic on-off valve 23, which is automatically used for preventing waste of gas consumption and for safety. Thus, the flame of the gas burner is extinguished (step S15).
[0034]
In step S13, if the user performs a fire extinguishing operation for extinguishing the flame in the flame hole 6b by pressing the ignition / extinguishing button 19 while the timer time (1 hour) has elapsed, the original gas valve is turned on. The valve is closed and the flame is extinguished (step S15). In step S14, if the timer time (one hour) has not expired, the process returns to step S13.
[0035]
Thus, in this Embodiment, the control apparatus 21 judges whether it is oil cooking (fried food etc.) or water cooking (boiled food etc.) based on the temperature information in the pan 11 detected with the temperature sensor 9, An appropriate timer time that can prevent waste of gas consumption and improve safety according to oil cooking and water cooking can be set.
[0036]
In the above embodiment, the timer time for cooking water is set to 2 hours, and the timer time for cooking oil is set to 30 minutes. However, the time is not limited to this time and can be set to an arbitrary time. Also good. In this case as well, the timer time for cooking oil is shortened.
[0037]
In the above embodiment, the extended timer time in step S10 in FIG. 2 is not limited to the above-described one hour . In addition, measurement start time of the timer described above is not limited to the time of the ignition operation, it may also be a time of ignition confirmation to the burner.
[0038]
Moreover, in the said embodiment, although it was the example which applied this invention to the gas stove as a cooking appliance, this invention can be similarly applied, for example in an electric stove, an induction heating cooking appliance, etc. other than this. .
[0039]
【The invention's effect】
As described above, according to the present invention , based on the temperature information input from the temperature detection means, the control means discriminates whether cooking by the cooking container is water cooking or oil cooking, and the determined cooking is water cooking. Depending on whether it is cooking oil or oil, it is possible to set the timer time until the heating operation of the heating means is stopped, so it is possible to set an appropriate timer time for oil cooking and water cooking And usability can be improved.
[0040]
Further, according to the present invention, when the control means determines that cooking by the cooking container is oil cooking based on temperature information input from the temperature detection means, the timer time is set to be greater than that for water cooking. By setting a short timer time, it is possible to prevent waste of gas consumption due to forgetting to extinguish fire when cooking oil, and to further improve safety.
[0041]
Further, according to the present invention , when the control means determines that there has been a temperature fluctuation from the temperature information input from the temperature detection means during cooking of oil, it is fried by extending the set timer time by a predetermined time. Fire extinguishing due to timer time during cooking of food can be prevented.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view showing a gas stove according to an embodiment of the present invention.
FIG. 2 is a flowchart for explaining a timer time setting procedure according to the embodiment of the present invention.
FIG. 3A is a diagram illustrating a temperature detected by a temperature sensor during cooking of water, and FIG. 3B is a diagram illustrating a temperature detected by the temperature sensor during cooking of oil.
FIG. 4 is a diagram showing a temperature change detected by a temperature sensor when a pan is shaken during cooking of oil.
[Explanation of symbols]
1 gas stove (cooker)
6 Gas burner (heating means)
9 Temperature sensor (temperature detection means)
10 Gotoku 11 Pot (cooking container)
15 Gas flow rate adjustment unit 16 Gas flow rate control unit 21 Control device (control means)

Claims (1)

In a cooker that heats a cooking container with a heating means to cook the food in the cooking container,
A temperature detecting means for detecting a temperature in the cooking container at the time of cooking in contact with an outer bottom surface of the cooking container; and a heating operation of the heating means when a predetermined timer time elapses from the start of the heating operation of the heating means. Control means for stopping,
The control means determines whether cooking by the cooking container is water cooking or oil cooking based on temperature information input from the temperature detection means, and whether the determined cooking is water cooking or oil cooking. In response, each timer time until the heating operation of the heating means is stopped is set ,
When the cooking by the cooking container is determined to be oil cooking based on the temperature information input from the temperature detection means, the control means sets the timer time to a timer time shorter than that for water cooking. And
The control means determines that cooking by the cooking container is oil cooking based on temperature information input from the temperature detection means, and sets the timer time to a timer time shorter than that for water cooking. In the case where it is determined from the temperature information input from the temperature detection means that there has been a temperature fluctuation due to fried food cooking, the set timer time is extended by a predetermined time,
A cooking device characterized by that.

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