JP3931726B2 - Cooker - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cooking device such as a table stove equipped with a cooking timer.
[0002]
[Prior art]
For example, a table stove is provided with timer setting means that can arbitrarily set the time of the cooking timer, and the controller as the control means sets the stove burner as the heating means according to the timer time set by the timer setting means. Some are known to burn and automatically extinguish when time is up. On the other hand, regardless of the cooking timer, when the continuous burning time of the stove burner is counted and continuously burned for a set time (for example, 1 hour), the controller automatically fires the stove burner in the same manner to ensure safety. One with a forget to turn off timer is also known.
However, when cooking for a long time, such as boiled beans, if the fire is extinguished by the forget-to-extinguish timer, the stove burner needs to be lit again and again, which is cumbersome, and if the fire is not noticed, the cooked food will stop. There is also a risk that the result will be poor.
Therefore, Japanese Patent Publication No. 8-6928 discloses an automatic cooking device which improves the usability by giving priority to the cooking timer when the timer time of the cooking timer is longer than the setting time of the forgetting to turn off timer. Has been.
[0003]
[Problems to be solved by the invention]
However, if the cooking timer is prioritized for a long period of time as described in the above publication, then if the cooking is continued without canceling the setting of the cooking timer, the forgetting to turn off timer will not work for a long time. Time combustion is allowed and safety is reduced.
[0004]
SUMMARY OF THE INVENTION An object of the present invention is to provide a cooking device that maintains the usability of the cooking timer and does not impair the safety of the forgetting to turn off timer.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is provided with a capacity switching means capable of switching the capacity of the heating means in at least two levels, the control means having a timer time set by the timer setting means. If the timer is longer than the set time of the timer to forget to turn off , the ability switching means switches the ability of the heating means to the smaller side, gives priority to the timer time to control the heating means, and when the timer time is up, the timer The time setting is canceled.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic configuration diagram of a table stove with a grill (hereinafter simply referred to as “table stove”), which is an example of a heating cooker. A table stove 1 has two stove sections 2 and 3 and one grill. The gas pipe to the stove burner 5 serving as a heating means disposed in one of the stove parts 2 is provided with a cock switch 6, a safety valve 7, and a stove burner 5 from the upstream side. A keep solenoid valve 8 is provided as a capability switching means capable of switching the heating power in two stages, large and small. A thermistor 9 for detecting the pan bottom temperature is provided in the center of the stove burner 5, and in the vicinity of the stove burner 5. The thermocouple 10 and the ignition electrode 11 are juxtaposed. A gas switch 13 and a safety valve 14 are also provided from the upstream side of the gas pipe of the stove burner 12 that is also disposed in the other stove unit 3 as heating means, and in the vicinity of the stove burner 12. In addition, the thermocouple 15 and the ignition electrode 16 are arranged in parallel.
On the other hand, the gas pipe to the grill burners 17 and 17 also serving as heating means disposed in the grill section 4 is provided with a cock switch 18 and a safety valve 19 from the upstream side, respectively, and in the vicinity of the grill burner 17, a thermocouple is provided. 20 and the ignition electrode 21 are arranged in parallel.
[0007]
A controller 22 is a controller as a control means, and is always energized from the dry battery 23. In addition to the well-known CPU, RAM, and ROM, a safety valve drive circuit, a keep solenoid valve drive circuit, and a thermistor provided for each safety valve 7, 14, 19 9 temperature detection circuits, a flame detection circuit provided for each of the thermocouples 10, 15, and 20, a timer circuit, and the like.
[0008]
Further, on the front surface of the table stove 1, there is provided an operation unit 24 for giving a command for cooking mode or timer control to the controller 22. The operation unit 24 includes a cooking mode selection unit 25 and a timer setting unit 26 as a timer setting unit. The cooking mode selection unit 25 includes a fried food switch 27 and three temperatures (160 ° C., 180 ° C., 200 ° C.). LED lamps 28, 28,... Corresponding to [° C.], a water heater / rice cooking switch 29, LED lamps 30, 30 corresponding to each mode, and a cancel switch 31 are provided. Here, the deep-fried food mode is selected by pushing the deep-fried food switch 27, and the lighting of the LED lamp 28 is switched in turn each time the deep-fried food mode is selected. Similarly, by pressing and operating the water heater / rice cooking switch 29, the water heater mode is selected and the LED lamp 30 at that position is lit, and when it is pressed again, the rice cooking mode can be selected. When the cancel switch 31 is pressed, all the LED lamps 28 and 30 are turned off and the cooking mode selection is reset.
[0009]
On the other hand, the timer setting unit 26 selects a display unit 32 that displays the timer time in minutes, increase / decrease switches 33 and 33 that can increase or decrease the timer time displayed on the display unit 32, and timer setting and release thereof. A possible ON / OFF switch 34 and a timer time confirmation switch 35 on the display unit 32 are provided. That is, when the ON / OFF switch 34 is pressed, the timer time blinks on the display unit 32 and the timer setting is started. By pressing the increase / decrease switches 33, 33, an arbitrary timer time can be selected, and the confirmation switch 35 When is pressed, the selected timer time is set. When the ON / OFF switch 34 is pressed in the display state, the display on the display unit 32 disappears and the timer setting is cancelled. The timer starts counting in a state where any one of the burner burners 5 and 12 or the grill burner 17 is ignited, and when the time is up, the controller 22 sounds the buzzer 36 to notify.
[0010]
Further, in the table stove 1, the maximum value of the continuous combustion time is set to 120 minutes for the stove burner 5, 60 minutes for the stove burner 12, and 26 minutes for the grill burner 17, which are set in each burner. When the continuous combustion time is reached, the controller 22 can execute a forget-to-extinguish timer that stops energization of the corresponding safety valve, closes it, and automatically extinguishes the fire. This forgetting-off timer also starts counting with each burner ignited.
[0011]
In the table stove 1 configured as described above, for example, when an ignition button (not shown) is pushed on the stove unit 2, the cock switch 6 is turned on and the safety valve 7 is opened to allow gas to enter the stove burner 5. Supplied. The controller 22 that has detected ON of the cock switch 6 operates the igniter to continuously discharge the ignition electrode 11 and ignite the stove burner 5. When the thermocouple 10 is heated by the ignition of the stove burner 5 and the thermoelectromotive force rises and reaches the ignition detection level, the controller 22 energizes the safety valve 7 with the adsorption current to hold the safety valve 7 open. . Therefore, when the stove burner 5 misfires and the thermoelectromotive force of the thermocouple 10 decreases, the controller 22 stops the adsorption current to the safety valve 7, closes the safety valve 7, and shuts off the gas supply. This ignition operation and misfire detection are the same in the other stove part 3 and grill part 4.
[0012]
In addition, in the above-mentioned table stove 1, when the timer is set for a longer time than the forget-to-turn-off timer in consideration of the convenience of cooking for a long time such as boiled food, the controller 22 cancels the forget-to-turn-off timer and cooks. The timer is prioritized. Therefore, a long timer time such as 150 minutes can be set in the timer setting unit 26 after the stove burner 5 is ignited, for example. Then, after the cooking is finished, if the stove burner 5 is ignited without canceling the timer setting, the 150-minute cooking timer is automatically canceled, and the 120-minute forgetting to turn off timer has priority. . This timer control will be described below based on the flowchart of FIG.
[0013]
First, when the stove burner 5 is ignited in S1, it is determined in S2 whether or not the cooking timer is set in the timer setting unit 26. Here, if the timer is not set, the counting of the forgetting-off timer (120 minutes) is started in S3, and when the forgetting-off timer expires in S4, the controller 22 closes the safety valve 7 in S5. The fire burner 5 is automatically extinguished.
On the other hand, if the cooking timer has been set in the determination of S2, it is determined in the next determination of S6 whether or not the set timer time is longer than the setting time of the forgetting to turn off timer. If the timer time is longer than the forgetting-off timer (for example, 150 minutes), in S7, the forgetting-off timer is canceled and the cooking timer is started. When the cooking timer expires in S8, in S9, the safety valve 7 is closed and the stove burner 5 is automatically extinguished, and the setting of the cooking timer is canceled regardless of the setting in the timer setting unit 26. Reset the forgetting-off timer for 120 minutes.
[0014]
Therefore, if the setting of the timer in the timer setting unit 26 is left as it is and the stove burner 5 is subsequently ignited, the setting of the cooking timer is not confirmed in the determination of S2, so that the timer forgetting to turn off is now counted in S3. The fire is automatically extinguished when the set time (120 minutes) expires (S4, 5). If you try to set the timer when reigniting as it is, the setting time (120 minutes) of the timer you forget to turn off is displayed on the display unit 32 first, so if you want to cook for a long time exceeding 120 minutes When a timer time longer than this is set with the increase / decrease switches 33 and 33 and the confirmation switch 35 is pressed again, the cooking timer is set again. Therefore, the cooking timer is prioritized in the processes of S6 to S9.
On the other hand, if it is determined in S6 that the cooking timer is shorter than the forgetting-off timer, the cooking timer starts as it is in S10, and the cooking burner 5 is automatically extinguished when the cooking timer expires in S11 ( S12).
[0015]
As described above, according to the table stove 1 of the above embodiment, the controller 22 gives priority to the timer time even when the timer time set by the timer setting unit 26 is longer than the set time of the timer to forget to turn off the stove burner 5. If the user wishes to cook for a longer period of time that exceeds the forgetting to turn off timer, the timer time setting is canceled when the timer time expires. The cooking timer can be set, and conversely, even if the cooking timer is forgotten to be canceled and cooking is started as it is, the forgetting to extinguish timer works and the fire is automatically extinguished after the set time. Therefore, it is possible to obtain the table stove 1 that maintains the usability by the cooking timer and does not impair the safety by the forgetting to turn off timer.
[0016]
In the timer control, when the set timer time is longer than the set time of the forgetting to turn off timer (in the case of YES in S6), as shown in FIG. The opening degree control of the solenoid valve 8 is performed, the heating power of the stove burner 5 is switched to the small side, and the timer cooking longer than the forgetting to turn off timer can be configured to be heated with a small fire. Other controls are the same as in FIG.
In this way, if the timer cooking is forced to be a small fire from the beginning by using the keep solenoid valve 8 for a long period of time exceeding the forgetting to turn off timer, the risk of scorching and empty cooking is reduced, and safety is improved and boiled beans, etc. Heating suitable for long-time cooking can be performed automatically, improving usability.
[0017]
On the other hand, in the said form, although the case where the stove burner 5 is used in the stove part 2 is illustrated, even when the stove burner 12 and the grill burner 17 are used in the other stove part 3 and the grill part 4, The timer control itself is the same except that the setting time of the forgetting-off timer is different.
Similarly, the other stove part 3 and the grill part 4 may be provided with ability switching means such as a keep solenoid valve, and in the case of timer cooking exceeding the forgetting to turn off timer, it may be controlled to heat with a small fire from the beginning. Of course, the capacity switching means is not limited to the two large and small stages as in the above embodiment, and even a solenoid valve whose capacity can be switched in three or more stages or steplessly can be used by selecting any small capacity. is there.
[0018]
【The invention's effect】
According to the present invention , if the user desires timer cooking for a long time exceeding the timer to forget to turn off, the cooking timer can be set continuously at that time, and conversely, the cooking timer is canceled after cooking by the cooking timer. Even if the forgetting is started and cooking is started as it is, the forgetting to turn off timer works and the heating means is stopped after the set time. Therefore, it is possible to obtain a cooking device that maintains the usability of the cooking timer and does not impair the safety of the forgetting to turn off timer.
In addition, when the timer time set by the timer setting means is longer than the timer setting time provided by the ability setting means, the ability of the heating means is switched to the small side and controlled. In addition to reducing the risk of cooking and empty cooking, safety is improved and heating suitable for long-time cooking such as boiled beans can be performed automatically, improving usability.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a table cooker with a grill.
FIG. 2 is a flowchart of timer control.
FIG. 3 is a flowchart of a modified example of timer control.
[Explanation of symbols]
1 ・ Table stove with grill, 2, 3 ・ Stove section, 4 ・ Grill section, 5,12 ・ Corn burner, 7,14,19 ・ Safety valve, 8 ・ Keep solenoid valve, 9 .. Thermistor, 17 .. Grill burner, 22 .. Controller, 24 .. Operation part, 25 .. Cooking mode selection part, 26 .. Timer setting part, 32 .. Display part, 33.・ ON / OFF switch, 35 ・ ・ Confirmation switch.

Claims (1)

A heating unit, a timer setting unit that can arbitrarily set the time of the cooking timer, and a control unit that controls the heating unit in accordance with a timer time set by the timer setting unit. When the continuous use time of the means reaches a predetermined set time, the cooking device executes a forgetting-off timer for stopping the heating means,
A capacity switching means capable of switching the capacity of the heating means to at least two stages of large and small is provided,
When the timer time set by the timer setting means is longer than the setting time of the forgetting-off timer, the control means switches the ability of the heating means to the smaller side by the ability switching means and gives priority to the timer time. The heating means is controlled, and when the timer time is up, the setting of the timer time is canceled.

Images