JP2018036025A - Gas cooking stove - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gas cooking stove capable of performing cooking in a cooking mode suitable to the cooking.SOLUTION: A gas cooking stove comprises: a burner 2 for heating a cooking container 9 in which a body to be cooked is put; a temperature sensor 10 for detecting a temperature of the body to be cooked through the cooking container 9; and a control part 12 for controlling fire power of the burner 2. The control part 12 is configured to selectively execute a first cooking mode in which the fire power of the burner 2 is so controlled that the detection temperature of the temperature sensor 10 does not exceed a first temperature and a second cooking mode in which the fire power of the burner 2 is so controlled that the detection temperature of the temperature sensor 10 does not exceed a second temperature higher than the first temperature. The control part 12 gives notice concerned with switching from the first cooking mode to the second cooking mode when determining that the switching to the second cooking mode is needed during execution of the first cooking mode.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a gas stove in which a plurality of cooking modes in which heating power is automatically adjusted can be selectively executed.

  Conventionally, there has been known a gas stove that can execute a cooking mode in which the heating power of a burner is automatically adjusted according to cooking (see, for example, Patent Document 1).

  This type of gas stove includes a control unit that executes a cooking mode that adjusts the heating power of the burner so as not to exceed a predetermined temperature in consideration of the burning temperature of the pan, the overheating temperature of the tempura oil, and the like. As a result, when cooking boiled food, tempura, etc., it is possible to suppress the burning of the pot and the excessive increase in the temperature of the tempura oil.

  Moreover, the control part can perform the high temperature cooking mode in which cooking at a temperature higher than the cooking mode is possible. As a result, cooking at a relatively high temperature can be performed, such as fried foods in a frying pan.

  By the way, for example, the high-temperature cooking mode is a mode assuming frying with a frying pan or the like, and if used in a stew or the like by mistake, there is a possibility that the burning of the pan cannot be prevented. For this reason, normally, a changeover switch for switching the high temperature cooking mode is provided, and the second cooking is performed unless the user performs a special operation on the changeover switch (generally, if the user does not press and hold for 3 seconds). The mode cannot be selected.

  As described above, in the case of a special cooking mode that may cause a problem when other cooking is performed, it is usually possible to select by performing a special operation on the switch.

JP 2013-24475 A

  However, the special operation of the switch for performing the special cooking mode as described above is not only difficult for the user to understand, but also the user tends to neglect the operation. Specifically, for example, when performing high-temperature cooking such as fried foods that require a high temperature, without knowing that a special operation (such as long press for 3 seconds) must be performed on the changeover switch, or The user may forget to select to switch to the high-temperature cooking mode, and high-temperature cooking may be performed in the normal cooking mode. In addition, since the user does not know the timing for switching to the high temperature cooking mode, the user may perform high temperature cooking in the normal cooking mode.

  In these cases, the heating power of the burner is repeatedly switched in a state where sufficient heating cannot be performed, and the temperature required for high-temperature cooking such as fried foods cannot be obtained, so the user feels inconvenience in use. In addition to the risk of cooking, it may cause cooking failures.

  In view of the above points, an object of the present invention is to provide a gas stove that can perform cooking in a cooking mode suitable for cooking.

  In order to achieve this object, the present invention provides a burner for heating a cooking container in which an object to be cooked is placed, a temperature sensor for detecting the temperature of the object to be cooked through the cooking container, and the heating power of the burner. A control unit that adjusts the heating power of the burner so that the temperature detected by the temperature sensor does not exceed the first temperature, and the temperature detected by the temperature sensor. In the gas stove configured to selectively execute the second cooking mode for adjusting the heating power of the burner so as not to exceed a second temperature different from the first temperature, the control unit includes the first When it is determined that switching to the second cooking mode is necessary during execution of one cooking mode, a notification regarding switching from the first cooking mode to the second cooking mode is performed. To do.

  According to the present invention, when the first cooking mode is executed and the second cooking mode needs to be switched during execution of the first cooking mode, the present invention allows the user to recognize the fact, and the cooking mode is suitable for cooking. Cooking can be encouraged to prevent cooking failure.

  The present invention can be suitably employed when the second temperature used in the second cooking mode is higher than the first temperature used in the first cooking mode.

  Specifically, when the second cooking mode uses a temperature higher than that of the first cooking mode, if cooking is performed in the first cooking mode, the cooking power is insufficient and a cooking failure is likely to occur. Therefore, when the control unit determines that switching to the second cooking mode is necessary during execution of the first cooking mode, the control unit prompts the switching from the first cooking mode to the second cooking mode. If this notification is made, the user can switch to the second cooking mode without delay, and cooking failures can be prevented.

  At this time, while the first cooking mode is being executed, the control unit switches the heating power of the burner after a predetermined number of times of switching of the heating power or after a predetermined time has elapsed from the first switching of the heating power. It is preferable that notification regarding switching from the first cooking mode to the second cooking mode is performed. That is, the control unit satisfies the condition that the heating power has been switched for a predetermined number of times or more during the control in the first cooking mode, or that a predetermined time has elapsed since the first switching of the heating power. It is determined that it is necessary to switch to the cooking mode.

  Thereby, for example, when the user performs cooking that requires a relatively high temperature, such as fried food, in the first cooking mode, the control unit needs to switch to the second cooking mode. It is determined that there is, and a notification for urging the user to operate the changeover switch is performed. By this notification, the user can be made aware that he has failed to switch to the second cooking mode. And based on the alert | report at this time, the user can cook in the cooking mode suitable for cooking, and can avoid generation | occurrence | production of cooking failure.

  Further, in the present invention, a switching switch for switching from the first cooking mode to the second cooking mode is provided, and the notification regarding the switching from the first cooking mode to the second cooking mode is described above. The notification prompts the operation of the changeover switch, and the control unit switches from the first cooking mode to the second cooking mode when a predetermined operation is performed on the changeover switch in advance. It is characterized by performing.

  At this time, the predetermined operation of the change-over switch is an operation in which the user maintains the press for a predetermined long-press operation time, and the control unit performs a notification that prompts the operation of the change-over switch. It is preferable to shorten the long press operation time by the changeover switch.

  When a notification for prompting the operation of the change-over switch is performed, by shortening the long press operation time by the change-over switch, not only the troublesome operation of the change-over switch that is prompted by the notification is eliminated, but also the second promptly. Since the time for switching to the cooking mode is shortened, it is possible to prevent the operation of the changeover switch from interfering with the cooking operation.

Explanatory drawing which shows typically the structure of the gas stove of embodiment of this invention. The flowchart which shows control of the controller which concerns on this invention.

  An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, a gas stove 1 according to this embodiment includes a stove burner 2 (burner), a gas supply pipe 3 that supplies fuel gas to the stove burner 2, and an original solenoid valve 4 provided in the gas supply pipe 3. And a flow rate change valve 5, an ignition electrode 6 for igniting the burner 2, and a thermocouple 7 for detecting ignition of the burner 2.

  The virtue 8 is provided on the outer periphery of the stove burner 2, and the pan 9 is heated at the upper position of the stove burner 2 by placing the pan 9 (cooking container) containing the food in the gortoku 8.

  A pan bottom temperature sensor 10 (temperature sensor) that detects the temperature of the pan bottom in contact with the bottom of the pan 9 (the bottom of the pan bottom) placed on the virtues 8 is provided at the center of the stove burner 2. The pan bottom temperature sensor 10 is supported so that it can be raised and lowered. In the state where no pan 9 is placed on the virtues 8, the pan bottom temperature sensor 10 protrudes to a position higher than the virtues 8, and the pan 9 is placed on the virtues 8. When the pan is present, the pan 9 is configured to be pushed down under the load of the pan 9.

  The pan bottom temperature sensor 10 is assembled with a pan detection sensor 11 for detecting the pan 9 placed on the virtues 8 and positioned above the stove burner 2. The pan detection sensor 11 outputs an ON signal when the pan 9 is placed on the virtues 8 and the pan bottom temperature sensor 10 is pushed down.

  As shown in FIG. 1, the gas stove 1 includes a controller 12 (control unit) that is an electronic unit configured by a microcomputer or the like. The controller 12 receives an operation signal according to the operation of the operation knob 13, an operation signal of the high temperature selection switch 14 (switching switch), a detection signal of the pan bottom temperature sensor 10, and the like.

  The operation knob 13 and the high temperature selection switch 14 are assembled to a front panel or the like of a casing (not shown) of the gas stove 1. What is indicated by reference numeral 14 a is an operation lamp provided in the vicinity of the operation portion of the high temperature selection switch 14. The operation knob 13 is pressed by the user when the stove burner 2 is ignited and extinguished, and is rotated by the user when the heating power of the stove burner 2 is set to a desired magnitude. The high temperature selection switch 14 is operated when selecting a “high temperature cooking mode” to be described later, and the controller 12 detects a long press of the high temperature selection switch 14 for 3 seconds and receives an ON signal. The controller 12 can freely change the long press time of the high temperature selection switch 14.

  A control signal is output from the controller 12 to each component. That is, the operation of the original solenoid valve 4, the flow rate change valve 5, and the ignition electrode 6 is controlled by this control signal. The flow rate change valve 5 is an electric valve, and the opening degree of the gas supply pipe 3 is changed by a valve body (not shown) driven by a motor 15.

  The controller 12 includes a thermal power control function unit 16 that performs a process of increasing / decreasing the thermal power of the stove burner 2 and a notification control function unit 18 to which a speaker 17 is connected. Further, although not shown, a memory in which various programs and data are recorded and a timer are provided. Further, in the controller 12, the notification control function unit 18 drives the speaker 17 to selectively output sound and buzzer sound.

  The thermal power control function unit 16 of the controller 12 can execute either the normal cooking mode (first cooking mode) or the high temperature cooking mode (second cooking mode). The normal cooking mode is a mode in which the heating power of the stove burner 2 is automatically adjusted so that the temperature detected by the pan bottom temperature sensor 10 does not exceed the first temperature (for example, 260 ° C.). The high temperature cooking mode is a mode in which the heating power of the burner 2 is automatically adjusted so that the temperature detected by the pan bottom temperature sensor 10 does not exceed a second temperature (for example, 290 ° C.) higher than the first temperature. It is a mode that does not start the automatic adjustment of the thermal power until the temperature becomes.

  The operation of the main part of the controller 12 will be described below along the flowchart shown in FIG. The controller 12 changes the opening degree of the flow rate change valve 5 by driving the motor 15 according to an instruction from the thermal power control function unit 16. Thereby, although it is possible to switch the heating power of the stove burner 2 to a plurality of stages (for example, 9 stages), for convenience of explanation, explanation will be made using a large heating power and a small heating power.

  As shown in FIG. 2, the controller 12 starts control of the normal cooking mode in STEP 1 after the start, and proceeds to STEP 2. The thermal power control function unit 16 monitors the cooking temperature with the pan bottom temperature sensor 10. In STEP2, when the detected temperature of the pan bottom temperature sensor 10 is equal to or higher than a control temperature (for example, 250 ° C.) set in advance based on the first temperature, the process proceeds to STEP3, and when the control temperature has not been reached. Go to STEP4.

  The controller 12 determines whether or not the high temperature selection switch 14 is pressed for 3 seconds in STEP4. If the high temperature selection switch 14 is pressed for 3 seconds, the controller 12 proceeds to STEP5 and executes the high temperature cooking mode. If the high temperature selection switch 14 is not pressed for 3 seconds in STEP4, the process returns to STEP2.

  On the other hand, when the controller 12 proceeds from STEP 2 to STEP 3, the heating power control function unit 16 changes the heating power of the burner 2 to a small heating power. Next, when the detected temperature of the pan bottom temperature sensor 10 is 5 ° C. lower than the control temperature in STEP 6, the process proceeds to STEP 7, the notification control function unit 18 drives the speaker 17, and the heating power of the burner 2 is increased by voice or buzzer. Notify that it will change to firepower.

  After that, the controller 12 changes the heating power of the burner 2 to a large heating power by the heating power control function unit 16 in STEP 10 and returns to STEP 2, but the current user performs high-temperature cooking through STEP 8 and STEP 9 during that time. Determine whether or not.

  When returning from STEP 10 to STEP 2, by proceeding to STEP 3, excessive heating of the object to be cooked is prevented and the temperature is suppressed to a temperature equal to or lower than the first temperature.

  On the other hand, the controller 12 counts the number of executions of STEP 3 (the number of times of change to small heating power). If the number of times of change to the small heating power is a multiple of 5 in STEP 8 (not a multiple of 5), STEP 11 Proceed to

  If the controller 12 does not proceed from STEP 8 to STEP 11, the controller 12 proceeds to STEP 9, and also proceeds to STEP 11 when 3 minutes or more have elapsed since the heating power of the burner 2 is changed to a small heating power.

  In STEP8, when the number of changes of the heating power of the stove burner 2 is 5 (multiple times of 5), the heating power is switched relatively frequently, and it is possible to cook at high temperature such as fried food using a frying pan. High nature. Therefore, the process proceeds to STEP 11, the speaker 17 is driven via the notification control function unit 18, and a notification is made to urge the user to operate the high temperature selection switch 14 by voice.

  In STEP 9, the process also proceeds to STEP 11 when 3 minutes or more have passed since the heating power of the burner 2 was changed to the small heating power for the first time (when it is not less than 3 minutes). The process proceeds to STEP 9 when the number of changes in the heating power of the burner 2 is not a multiple of 5 in STEP 8, but the process proceeds to STEP 11, for example, every 3 minutes by passing through STEP 9, and the high temperature selection switch 14 is displayed to the user. Reliable notification to prompt operation.

  After proceeding to STEP 11 in this way, the controller 12 proceeds to STEP 12 and causes the operation lamp 14a of the high temperature selection switch 14 to blink. Thereby, the recognition degree of the high temperature selection switch 14 is increased for the user, and the heating power of the stove burner 2 is changed to a large heating power in STEP13.

  In STEP 14, if the high temperature selection switch 14 is not operated by the user, the process returns to STEP 2. If the high temperature selection switch 14 is operated by the user, the process proceeds to STEP 15 to execute the high temperature cooking mode. At this time, it is preferable that the operation of the high temperature selection switch 14 determined in STEP 14 is not a long press for 3 seconds, but a single operation (a short press instead of a long press). The troublesomeness for the user during the operation can be reduced.

  Further, in STEP8, by determining the number of times of changing the burner 2 to the small heating power by a multiple of 5, the troublesomeness for the user due to the frequent output of the voice prompting the operation of the high temperature selection switch 14 is also achieved. It is mitigating.

  That is, when the number of changes to the small heating power of the stove burner 2 is 5 in STEP 8, the high temperature selection switch 14 is not operated in STEP 14 even though the sound prompting the operation of the high temperature selection switch 14 is output in STEP 11. In some cases, the user may continue cooking without intentionally switching to the high temperature cooking mode. Therefore, if the high temperature selection switch 14 is not operated in STEP 14 when the number of changes to the small heating power of the stove burner 2 is 5, until the number of changes to the small heating power of the combo burner 2 is 10 in STEP 8. The troublesomeness is reduced by not outputting a voice prompting the operation of the high temperature selection switch 14.

  As described above, according to the present embodiment, when there is a possibility that high-temperature cooking is being performed, the user can be made aware that he / she has failed to switch to the high-temperature cooking mode. The person can cook in the cooking mode suitable for cooking, and can avoid the occurrence of cooking failure or the like.

  In the above embodiment, the normal cooking mode and the high temperature cooking mode have been described as corresponding to the first cooking mode and the second cooking mode in the present invention, respectively, but are not limited thereto. .

  That is, the controller 12 also has a function of notifying the user of an operation for switching from the high-temperature cooking mode to the normal cooking mode when it is determined that switching to the normal cooking mode is necessary during execution of the high-temperature cooking mode. May be. In this case, the high temperature cooking mode corresponds to the first cooking mode in the present invention, and the normal cooking mode corresponds to the second cooking mode in the present invention.

  As a condition for the controller 12 to determine that switching from the high temperature cooking mode to the normal cooking mode is necessary, for example, cooking in a state where the preset control temperature (for example, 250 ° C.) has not been reached. For example, when it is performed for 15 minutes or more. When this condition is satisfied, the controller 12 performs notification that prompts the switching operation from the high temperature cooking mode to the normal cooking mode.

  In particular, when the controller 12 determines that it is necessary to switch to the normal cooking mode during execution of the high-temperature cooking mode, the controller 12 automatically switches without waiting for the user to switch the cooking mode. May be notified to the user. According to this, since the user is not forced to switch the cooking mode, usability is improved.

  DESCRIPTION OF SYMBOLS 1 ... Gas stove, 2 ... Cooker burner (burner), 9 ... Pan (cooking container), 10 ... Pan bottom temperature sensor (temperature sensor), 12 ... Controller (control part), 14 ... High temperature selection switch (changeover switch).

Claims (5)

A burner that heats a cooking container in which an object is to be cooked; a temperature sensor that detects the temperature of the object to be cooked through the cooking container; and a controller that adjusts the heating power of the burner, the controller The first cooking mode for adjusting the heating power of the burner so that the temperature detected by the temperature sensor does not exceed the first temperature, and the second temperature at which the temperature detected by the temperature sensor is different from the first temperature. A gas stove configured to selectively execute the second cooking mode for adjusting the heating power of the burner so as not to exceed,
When the control unit determines that switching to the second cooking mode is necessary during execution of the first cooking mode, the control unit relates to switching from the first cooking mode to the second cooking mode. Gas stove characterized by performing notification. The gas stove according to claim 1, wherein
The gas stove characterized in that the second temperature used in the second cooking mode is higher than the first temperature used in the first cooking mode. The gas stove according to claim 2, wherein
The controller, when executing the first cooking mode, when switching the heating power of the burner after performing a predetermined number of times or more of switching the heating power or after a predetermined time has elapsed since the first switching of the heating power size, A gas stove that performs notification regarding switching from the first cooking mode to the second cooking mode. The gas stove according to any one of claims 1 to 3,
In what has a changeover switch for changing from the 1st cooking mode to the 2nd cooking mode,
The notification regarding the switching from the first cooking mode to the second cooking mode is a notification prompting the operation of the changeover switch,
The gas stove, wherein the control unit executes switching from the first cooking mode to the second cooking mode when a predetermined operation set in advance is performed on the changeover switch. The gas stove according to claim 4, wherein
The predetermined operation of the changeover switch is an operation in which the user maintains a press for a predetermined long press operation time,
The said control part shortens the said long press operation time by the said switch, when the notification which urges | urges operation of the said switch is performed, The gas stove characterized by the above-mentioned.