JP2004353911A - Cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooker capable of changing setting up a timer time for starting measurement from heating operation time of a heating source to proper time, in response to oily cooking and watery cooking. <P>SOLUTION: A control device 21 discriminates whether cooking by a gas cookstove 1 is the watery cooking or the oily cooking on the basis of temperature information inputted from a temperature sensor 9, and can respectively set the timer time up to automatically extinguishing a flame when prescribed time passes from ignition time of a gas burner 6, so that proper setting time can be set for performing the oily cooking and the watery cooking. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a cooking device such as a gas stove.
[0002]
[Prior art]
The gas stove is provided with a safety device that automatically extinguishes the gas burner flame after a certain period of time, even if the user forgets to extinguish the gas burner flame even after the predetermined cooking is completed ( For example, see Patent Document 1.)
[0003]
This safety device measures the time from the point of time when the gas burner flame is ignited (starts cooking). Even if the measured time reaches a predetermined time, if the gas burner flame is not extinguished, the gas consumption is reduced. The gas burner flame is extinguished automatically to prevent waste and safety.
[0004]
[Patent Document 1]
Japanese Patent Publication No. 4-50489 [0005]
[Problems to be solved by the invention]
By the way, in the above-mentioned conventional gas stove safety device, the timer time from the start of measurement from the ignition of the gas burner flame (start of cooking) is fixed to a fixed time. Generally, in consideration of cooking that requires a long cooking time such as boiling cooking, the timer time is set to a long time of about 2 hours.
[0006]
However, in the case of cooking oils such as fried foods and stir-fried foods, the cooking time is much shorter than in the case of cooking waters such as boiled foods. Despite the necessity to set it to about), the conventional gas stove could not change the timer time according to cooking of oil and water.
[0007]
Therefore, an object of the present invention is to provide a cooker that can change a timer time, which is measured from the time of heating operation of a heating source, to an appropriate time in accordance with cooking of oil and water.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention relates to a cooking device that heats a cooking container by a heating means and cooks food in the cooking container, wherein the cooking container is in contact with an outer bottom surface of the cooking container and is used for cooking. Temperature detecting means for detecting the temperature in the heating means, and control means for stopping the heating operation of the heating means when a predetermined timer time has elapsed from the start of the heating operation of the heating means, wherein the control means comprises: Based on the temperature information input from the detection means, it is determined whether the cooking by the cooking container is water-based cooking or oil-based cooking, and according to whether the determined cooking is water-based cooking or oil-based cooking, the heating means It is characterized in that a timer time until the heating operation is stopped is set respectively.
[0009]
Further, the control means, when determining that cooking by the cooking container is oily food cooking based on the temperature information input from the temperature detecting means, sets the timer time to a timer time shorter than the case of water food cooking. Is set.
[0010]
Further, the control means determines that cooking by the cooking container is oily cooking based on the temperature information input from the temperature detecting means, and sets the timer time to a shorter timer time than in the case of watery cooking. After that, when it is determined from the temperature information input from the temperature detecting means that the temperature has fluctuated, the set timer time is extended by a predetermined time.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described based on the illustrated embodiments.
[0012]
FIG. 1 is a schematic sectional view showing a gas stove as a cooker according to an embodiment of the present invention. In the gas stove 1 according to the present embodiment, the stove body 2 is hung by the flange 4 around the opening rim of the countertop 3, and the upper opening 5 of the stove body 2 has a circular opening 8 a facing the gas burners 6 and 7. , 8b. In the present embodiment, only the gas burner 6 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 disposed such that the tip side projects from the tip of the burner cap 6a. The temperature sensor 9 is in contact with the bottom of the pot 11 serving as a cooking container placed on the goto 10 and detects the temperature in the pot 11 during cooking. The temperature sensor 9 is constantly urged upward by a coil spring (not shown) provided therein, so that the temperature sensor 9 is stably brought into contact with the bottom of the pan 11.
[0014]
Further, the gas burner 6 is provided with a thermocouple (thermocouple) 12 whose tip is close to the flame hole 6b and detects the presence or absence of a flame coming out of the flame hole 6b, and an ignition electrode 13 for ignition.
[0015]
The gas burner 6 includes a gas flow control unit 15 having a gas flow control valve (not shown) provided on a conduit 14 having one end connected to the gas burner 6, and a gas flow control unit 16 having a source gas valve and an electromagnetic switching valve 23. Is connected to the gas supply pipe 17 via the. The gas flow adjusting unit 15 is provided with a flow adjusting lever 18 for adjusting the opening of a gas flow adjusting valve (not shown) by a user's sliding operation to adjust to a desired heating power.
[0016]
An ignition / extinguishing button 19 is in contact with the gas flow rate adjusting unit 15 via a cam mechanism (not shown). When the user presses the ignition / extinguishing button 19, the original gas valve is opened and the electromagnetic valve is opened. The on-off valve 23 is held open, and the gas is ignited by the energized ignition electrode 12 through the flame hole 6 b of the gas burner 6. When the ignition / extinguishing 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]
Temperature information of the pot (cooking container) 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, based on the presence or absence of a temperature equilibrium state at about 100 ° C.), the control device 21 cooks oil (fried food, fried food, etc.) or water food (boiled food, etc.). ) Is set, and a timer time is set for automatically starting to extinguish the flame coming out of the flame hole 6b when a predetermined time elapses after the measurement is started from the ignition of the gas (details will be described later).
[0018]
The thermocouple 12 is connected to a control device 21 via a lead wire (not shown), and the gas flow 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 due to the ignition, an electromotive force is generated in the heated thermocouple 12, and the 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 control unit 16 via the lead wire 22 based on the input signal (electromotive force), and holds the electromagnetic on-off valve 23 in the open state.
[0019]
Further, when the flame in the flame hole 6b is extinguished, the electric signal (electromotive force) is not output from the thermocouple 12, and the adsorption current is not output from the control device 21, so that the electromagnetic on-off valve 23 is closed. Even if the flame goes out for some reason, 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, a procedure for setting the timer time from when the gas is ignited to when the automatic extinction is performed by the control device 21 in the embodiment of the present invention will be described with reference to the flowchart shown in FIG.
[0021]
When cooking with the above-mentioned gas stove 1, first, when the user presses the ignition / extinguishing button 19, the original gas valve is opened, and the electromagnetic on-off valve 23 is kept open. Accordingly, the gas is ignited by the flame hole 6b of the gas burner 6 (step S1). From this point, the measurement of the timer time is started. Due to the flame that comes out of the flame hole 6b due to this ignition, cooking of the food in the pot 11 placed on the goto 10 is started.
[0022]
Then, the temperature inside the pan 11 during cooking is detected by the temperature sensor 9 in contact with the bottom of the pan 11. The control device 21 determines whether to cook oil (such as fried) or water (such as boiled) based on the detected temperature information input from the temperature sensor 9 (step S2).
[0023]
That is, at the time of cooking water, such as a boiled dish, the boiling temperature of water is about 100 ° C. as shown in FIG. 3 (a). Does not go up. On the other hand, at the time of cooking an oily product such as fried food, the temperature of the oil is set to 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 cooking is water cooking 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]
Then, in step S2, when the control device 21 determines that the cooking at this time is water cooking based on the detected temperature, the timer time measured from the ignition (start of cooking) is set to the length of the cooking time. In consideration of cooking that requires a long cooking time, it is set to a longer time of 2 hours (step S3). If the user has not performed the fire extinguishing operation to extinguish the flame in the flame hole 6b by pressing the ignition / extinguishing button 19 while the above timer time (2 hours) has elapsed (step S4), the control device 21 Determines whether the timer time has reached the set two hours and the time is up (step S5).
[0025]
In step S5, when the timer time has elapsed after the elapse of two hours, a signal is output to the gas flow rate control unit 16 to close the electromagnetic on-off valve 23, and automatic operation is performed to prevent waste of gas consumption and safety. The flame of the gas burner is extinguished (step S6).
[0026]
In step S4, if the user performs the fire extinguishing operation to extinguish the flame of the flame hole 6b by pressing the ignition / extinguishing button 19 while the timer time (two hours) has elapsed, the original gas valve is turned off. The valve is closed and the flame is extinguished (step S6). If it is determined in step S5 that the timer time (two hours) has not expired, the process returns to step S4.
[0027]
In step S2, when the control device 21 determines that the cooking at this time is oil cooking based on the detected temperature, the timer time measured from the ignition (start of cooking) is set to the time of the fried food or the fried food. In consideration of the fact that cooking is performed in a short time as described above, the time is set to a short 30 minutes (step S7). Then, during the cooking of the oil product, the control device 21 determines whether or not the detected temperature value input from the temperature sensor 9 fluctuates (step S8).
[0028]
That is, as shown in FIG. 4, when the detected temperature fluctuates, the pan 11 is separated from the temperature sensor 9 by the pan swinging operation, for example, when cooking the stir-fry with the pan 11 swinging up and down and left and right. However, when such stir-fry cooking is performed, the cooking time is often long. In addition, when there is almost no change in the value of the detected temperature input from the temperature sensor 9, it is time of fried food cooking or the like, and when such fried food cooking or the like is performed, the cooking time is often short.
[0029]
If the detected temperature value does not change in step S8 and the user has not performed the 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 proceeds to step S9. Then, it is determined whether or not the timer time reaches the set 30 minutes and the time is up (step S10). In step S10, when the timer expires after 30 minutes, which is the timer time, a signal is output to the gas flow control unit 16 to close the electromagnetic on-off valve 23, and automatic operation is performed to prevent waste of gas consumption and safety. The flame of the gas burner is extinguished (step S11).
[0030]
In step S9, when the detected temperature value does not change during the elapse of the timer time (30 minutes), the user presses the ignition / extinguishing button 19 to perform a fire extinguishing operation to extinguish the flame in the flame hole 6b. If so, the original gas valve is closed and the flame is extinguished (step S11). If it is determined in step S10 that the timer time (30 minutes) has not expired, the process returns to step S9.
[0031]
If it is determined in step S8 that the detected temperature value fluctuates as described above, the control device 21 extends the timer time set to 30 minutes so as not to extinguish the fire during cooking, For example, it is changed to one hour (step S12). Thus, even when cooking an oily product for a long cooking time, it is possible to prevent the timer time from being reached halfway and the fire from being automatically extinguished during the cooking.
[0032]
If the user has not performed the fire extinguishing operation to extinguish the flame of the flame hole 6b by pressing the ignition / extinguishing button 19 during the elapse of the extended timer time (1 hour) (step S13). Determines whether the timer time has reached the set one hour and the time is up (step S14).
[0033]
In step S14, when the timer time has elapsed and one hour has elapsed, a signal is output to the gas flow control unit 16 to close the electromagnetic on-off valve 23, and automatic operation is performed to prevent waste of gas consumption and safety. The fire of the gas burner is extinguished (step S15).
[0034]
In step S13, if the user presses the ignition / extinguishing button 19 to perform a fire extinguishing operation to extinguish the flame in the flame hole 6b while the timer time (1 hour) has elapsed, the original gas valve is turned off. The valve is closed and the flame is extinguished (step S15). If it is determined in step S14 that the timer time (one hour) has not expired, the process returns to step S13.
[0035]
As described above, in the present embodiment, the control device 21 determines whether to cook oil (such as fried food) or water (such as boiled) based on the temperature information in the pot 11 detected by the temperature sensor 9, It is possible to set an appropriate timer time that can prevent waste of gas consumption and improve safety in accordance with oil cooking and water cooking.
[0036]
Further, in the above-described embodiment, the timer time during the cooking of water is set to 2 hours, and the timer time during the cooking of oil is set to 30 minutes. However, the timer is not limited to this time, and may be set to an arbitrary time. Is also good. Also in this case, the timer time for cooking the oily product is set shorter.
[0037]
Further, in the above embodiment, the timer time extended in step S10 of FIG. 2 is not limited to the above-described one hour, and may be extended by an arbitrary time. Further, the number of times of this extension is not limited to one, but may be plural (for example, every 30 minutes). Further, the measurement start time of the timer described above is not limited to the time of the ignition operation, but may be the time of confirming the ignition of the burner.
[0038]
Further, in the above embodiment, the present invention is applied to a gas stove as a cooking device, but the present invention can be similarly applied to, for example, an electric stove, an induction heating cooking device, and the like. .
[0039]
【The invention's effect】
As described above, according to the first aspect of the invention, the control unit determines whether the cooking in the cooking container is water-based cooking or oil-based cooking based on the temperature information input from the temperature detecting unit. The timer time until the heating operation of the heating means is stopped can be set according to whether the cooking is oily or oily, so an appropriate timer time for performing oily cooking and watery cooking can be set. Can be set, and usability can be improved.
[0040]
According to the second aspect of the present invention, when the control means determines that cooking by the cooking container is oily food cooking based on the temperature information input from the temperature detecting means, the timer time is set to a water content. By setting the timer time shorter than in the case of cooking, it is possible to prevent waste of gas consumption due to forgetting to extinguish a fire in cooking oil and further improve safety.
[0041]
According to the third aspect of the invention, when the control means determines that there is a temperature change from the temperature information input from the temperature detection means at the time of cooking the oily product, the set timer time is extended by a predetermined time. By doing so, it is possible to prevent fire extinguishing due to the timer time during the cooking of the stir-fry.
[Brief description of the drawings]
FIG. 1 is a schematic sectional view showing a gas stove according to an embodiment of the present invention.
FIG. 2 is a flowchart illustrating a procedure for setting a timer time 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 oily products.
[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 control unit 16 Gas flow control unit 21 Control device (control means)

Claims (3)

In a cooking device that heats a cooking container by heating means and cooks food in the cooking container,
A temperature detection unit that contacts the outer bottom surface of the cooking container and detects a temperature in the cooking container during cooking; and performs a heating operation of the heating unit when a predetermined timer time elapses from a start of the heating operation of the heating unit. Control means for stopping,
The control unit determines whether cooking by the cooking container is water-based cooking or oil-based cooking based on temperature information input from the temperature detection unit, and determines whether the determined cooking is water-based cooking or oil-based cooking. Accordingly, a timer time until the heating operation of the heating unit is stopped is set,
A cooker characterized by that: The control means sets the timer time to a shorter timer time than in the case of water food cooking when the cooking by the cooking container is determined to be oil food cooking based on the temperature information input from the temperature detection means. Do
The cooker according to claim 1, wherein: The control unit determines that cooking by the cooking container is oil cooking based on temperature information input from the temperature detection unit, and sets the timer time to a shorter timer time than in the case of water cooking. In the case where it is determined that there is a temperature change from the temperature information input from the temperature detecting means, the set timer time is extended by a predetermined time,
3. The cooker according to claim 2, wherein:

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