JP5897401B2 - Stove - Google Patents

Description

  The present invention relates to a stove.

  Conventionally, there has been known a gas stove that can select whether to implement a safety function that extinguishes or weakens the thermal power when the cooking container is not placed on the virtues, and to not perform or postpone ignition depending on the purpose of use. (For example, refer to Patent Document 1). In this gas stove, when the safety function is effective, when the power is turned on by the ignition operation by the user, the control circuit is provided in the gas supply pipe when the cooking container is placed on Gotoku. Open the solenoid valve and ignite the burner by discharging the igniter. On the other hand, when the cooking container is not placed on Gotoku, the ignited burner is extinguished. On the other hand, when the release switch is pressed while the safety function is valid, the safety function is released. In this case, even if the cooking container is lowered from the five virtues, the burner continues to burn without being extinguished. By using this function, the user can perform so-called “boiled cooking” in which a food such as seaweed or fish is cooked above the burner, for example. That is, in this gas stove, two types of cooking modes, normal cooking and roasting cooking, can be set by canceling the safety function. In these cooking modes, for example, a reference cut temperature is set in advance. The reference cut temperature is a temperature at which combustion of the burner is forcibly stopped, and is set so that the cooking container does not become an abnormally high temperature during each cooking.

JP 2006-138571 A

  By the way, in the above-mentioned gas stove, two types of cooking modes can be set. For example, in the case of fried food cooking, since cooking is generally performed at a higher temperature than normal cooking, the reference cut temperature is set higher than normal cooking. It needs to be set high. Furthermore, fried foods use frying pans and so are different from roasting. Therefore, it is necessary to newly set the cooking mode for high temperature cooking as a fried food mode separately from the above two cooking modes. However, if a new switch for setting the stir-fried food mode is provided, another switch will be added to the existing switch, which will complicate the operation, easily cause an erroneous operation, and increase the manufacturing cost. There was a problem. Also, if the user is unconsciously set to the stir-frying mode when ignited due to an incorrect operation when the burner is ignited, the standard cut temperature for the stir-fry mode will be set despite normal cooking. There was also the problem of being done. Furthermore, if special cooking modes such as the roasting mode and the stir-fried food mode can be set freely as in the normal mode, these special cooking modes may be set by mistake. there were.

  An object of the present invention is to provide a stove that facilitates the setting of three cooking modes with one switch and can realize safe cooking.

Stove according to claim 1 of the present invention, a burner and a container detecting means for detecting the cooking container which is arranged above the burner, and configured temperature detecting means so as to contact the bottom surface of the cooking container A stove comprising: operating means for performing an ignition operation of the burner; a single switch for selecting a plurality of cooking modes; and a cooking mode setting means for setting the cooking mode. In the mode, at least a reference cut temperature for forcibly stopping combustion of the burner is set to the first cut temperature, and when the cooking container is not detected by the container detection means during the combustion of the burner, the burner A normal mode that is set so as to limit the heating power, and the reference cut temperature is set to a second cut temperature that is equal to or higher than the first cut temperature, and the container detection means Detection result broiled and the mode set to hold the heating power of the burner regardless, set the reference cutting temperature to the third cut temperature is the first cut temperature or the time of combustion of the burner, said vessel detection When the cooking container is not detected by the means, the frying mode is set so as to limit the heating power of the burner, and the cooking mode setting means is configured to ignite the burner without pressing the switch. When the operation is performed, the normal mode is set, and when the ignition operation is performed after the switch is pressed, the roasting mode is set and the cooking in the roasting mode is performed. When the switch is pressed and when the cooking container is detected by the container detection means, the normal mode is set, In the middle of cooking in the normal mode, when the switch is pressed, and setting the fry also modes.

  In addition to the configuration of the invention according to claim 1, the stove of the invention according to claim 2 is configured such that when the cooking mode is set by the cooking mode setting means, the cooking container is set by the container detection means. Determining means for determining whether or not the cooking container has been detected; ignition permission means for permitting ignition of the burner when the determination means determines that the cooking container is not detected; and And ignition limiting means for limiting ignition of the burner when detected.

  In addition to the configuration of the invention according to claim 1 or 2, the stove of the invention according to claim 3 is a first to be notified when the cooking mode setting means sets the normal mode to the cooking mode. An informing means is provided.

  In addition to the configuration of the invention according to any one of claims 1 to 3, the stove of the invention according to claim 4 is configured when the cooking mode setting means sets the stir-fry mode from the normal mode. Second informing means for informing is provided.

In the stove according to the first aspect of the present invention, a switch that originally sets and cancels a single function can be set and changed with a single switch by changing the function according to the use state of the stove. It can be performed. Thus, without increasing the number of switches, it is possible to set three modes of "normal mode", "broiled mode", "fried even mode", can provide a good usability stove while suppressing an increase in manufacturing cost. Furthermore, the safety of the stove can be improved by enabling the setting from the flip mode to the normal mode and prohibiting the opposite. When the cooking container is unconsciously placed in the turning mode, the normal mode is automatically set, so that the safety is further improved.

  Further, in the stove of the invention according to claim 2, in addition to the effect of the invention according to claim 1, a cooking container is placed on Gotoku even though the user performs an ignition operation with the intention of cooking in the fire mode. In such a case, the usage purpose of the user is not clear because the usage is different from the usage in the original speaking mode. In such a case, a safer stove can be provided by prohibiting ignition of the burner.

  In the stove of the invention according to claim 3, in addition to the effect of the invention according to claim 1 or 2, the first notification means notifies that the normal mode has been set from the turning mode. Therefore, the user can recognize that the setting has been changed from the hit mode to the normal mode.

  In the stove of the invention according to claim 4, in addition to the effect of the invention according to any one of claims 1 to 3, the second notification means notifies that the mode is set from the normal mode to the stir-fry mode. Therefore, the user can recognize that the setting has been changed from the normal mode to the fried food mode.

1 is a plan view of a stove 1. FIG. It is a front view of the stove 1. It is a figure which shows the gas amount adjustment mechanism of the high-thermal-power burner 5. It is a table | surface which shows the specific content of each heating cooking mode. It is a block diagram which shows the electric constitution of the stove. It is a flowchart of a main process. It is a flowchart which shows the continuation of FIG. It is a flowchart which shows the continuation of FIG.

  Hereinafter, a stove 1 according to an embodiment of the present invention will be described with reference to the drawings. These drawings are used to explain technical features that can be adopted by the present invention. The structure of the apparatus described below is merely an illustrative example, and is not intended to be limited to that unless otherwise specified. The stove 1 shown in FIG. 1 is a table stove, but may be a built-in stove or the like.

  First, the physical configuration of the stove 1 will be described with reference to FIGS. As shown in FIG. 1, a top plate 2 is provided on the top surface of the stove 1. An opening 3 is formed on the left side of the top plate 2. An opening 4 is formed on the right side. The openings 3 and 4 are circular in plan view. A strong heat burner 5 is provided inside the opening 3. A standard burner 6 is provided inside the opening 4. Five virtues 11 and 12 are provided on the upper portions of the openings 3 and 4, respectively. A cooking pot (not shown) or the like is placed on each of the upper parts of the virtues 11 and 12. A sensor unit 15 is provided at the center of the high thermal power burner 5. A sensor unit 16 is provided at the center of the standard burner 6.

  The sensor units 15 and 16 can be withdrawn in the vertical direction. The sensor parts 15 and 16 are pushed down when the cooking pot is placed on the virtues 11 and 12. The sensor unit 15 includes the thermistor 7 (see FIG. 5), the pan placement sensor 53 (see FIG. 5), and the like. The sensor unit 16 includes the thermistor 8 (see FIG. 5), the pan mounting sensor 54 (see FIG. 5), and the like. The thermistors 7 and 8 detect the pan bottom temperature by contacting the pan bottoms of the cooking pans placed on the virtues 11 and 12. The temperature of the cooking object in the cooking pan cannot be detected directly. Therefore, the stove 1 estimates the temperature of the cooking object in the cooking pan by detecting the pan bottom temperature. The pan mounting sensors 53 and 54 include micro switches (not shown) and the like. The microswitch is turned on by being pushed down by the pan bottom. In addition to the microswitch, for example, a reed switch that is switched on and off by a magnetic field may be used. By using such a property, the stove 1 can identify whether or not the cooking pan is placed on the five virtues 11 and 12.

  A grill exhaust port (not shown) is provided behind the top plate 2. The grill exhaust port is an opening for exhausting the inside of the grill cabinet. The grill is provided in the center of the stove 1. Exhaust port covers 13 and 14 are provided at the grill exhaust port. The exhaust port covers 13 and 14 include a plurality of exhaust holes 13A and 14A.

  As shown in FIG. 2, a grill door 17, ignition switches 21 to 23, fire power adjustment levers 25 to 27, and the like are provided on the front surface of the stove 1. The grill door 17 is provided in the center of the front surface of the stove 1 in the width direction. The grill door 17 allows a grill net, a tray, and the like in the grill cabinet to be taken in and out. The ignition switch 21 is provided on the left side of the grill door 17. The ignition switch 21 performs an ignition operation of the high thermal power burner 5 (see FIG. 1). The ignition switch 22 is provided on the right side of the grill door 17. The ignition switch 22 performs an ignition operation of the standard burner 6. The ignition switch 23 is provided on the right end side of the front surface of the stove 1. The ignition switch 23 performs an ignition operation of the grill burner. The thermal power adjustment lever 25 is provided above the ignition switch 21. The thermal power adjustment lever 25 adjusts the thermal power of the strong thermal power burner 5. The thermal power adjustment lever 26 is provided above the ignition switch 22. The thermal power adjustment lever 26 adjusts the thermal power of the standard burner 6. The thermal power adjustment lever 27 is provided on the upper side of the ignition switch 23. The thermal power adjustment lever 27 adjusts the thermal power of the grill burner.

  Further, a release switch 81 is provided above the heating power adjustment lever 25. The release switch 81 is pressed to release the normal mode set in the initial state before ignition of the strong thermal burner 5. It should be noted that the turning mode is set by pressing the release switch 81 and then pressing the ignition switch 21. In addition, when the release switch 81 is pressed during cooking in the normal mode, the setting is changed to the fried food mode. The contents of these cooking modes will be described later.

  An operation panel 30 is provided on the upper left end of the front surface of the stove 1. The operation panel 30 is a device for performing various settings and operations of the stove 1. The operation panel 30 includes a display screen 31, a speaker 56 (see FIG. 5), an LED 32, various setting switches, and the like. The display screen 31 displays various screens and makes various notifications to the user. The speaker 56 gives various notifications to the user through a buzzer, voice and the like. A battery box 29 is provided below the operation panel 30. The battery box 29 can store two dry batteries. Although not described in detail, the stove 1 is equipped with a grill timer (not shown). The grill timer is for setting the cooking time of the grill and performing automatic fire extinguishing and voice notification. The set time and remaining time of the grill timer are displayed on the display screen 31. The grill timer is provided in a control circuit 70 (see FIG. 5) described later.

  It should be noted that igniters 35 to 37 (see FIG. 5) are respectively provided in the high thermal power burner 5, the standard burner 6, and the grill burner. The igniters 35 to 37 are devices that ignite various burners by discharging sparks in conjunction with the ignition operations of the ignition switches 21 to 23, respectively. The stove 1 includes a first gas supply pipe 10 (see FIG. 3), a second gas supply pipe (not shown), and a third gas supply pipe (not shown). The first gas supply pipe 10 is a pipe for supplying gas to the high thermal power burner 5. The second gas supply pipe is a pipe for supplying gas to the standard burner 6. The third gas supply pipe is a pipe for supplying gas to the grill burner.

  As shown in FIG. 3, the first gas supply pipe 10 includes a branch pipe 20. One end of the upstream side of the branch pipe 20 through which the gas flows is connected to the branch part 33 of the first gas supply pipe 10, and the other end of the branch pipe 20 is connected to the junction part 34 of the first gas supply pipe 10. ing. The safety valve 38 is provided in front of the branch portion 33 of the first gas supply pipe 10. The electromagnetic valve 61 is provided between the branch portion 33 and the junction portion 34. The electromagnetic valve 61 is a gas flow rate adjusting keep solenoid valve. The electromagnetic valve 62 is provided between the merging portion 34 and the high thermal power burner 5. The solenoid valve 62 is a gas shut-off keep solenoid valve. A cock switch (not shown) is provided on the upstream side of the first gas supply pipe 10. In such a strong thermal power burner 5, the flow rate of the gas flowing through the strong thermal power burner 5 can be adjusted in two stages by opening and closing the electromagnetic valve 61. Thereby, in this embodiment, about the high thermal power burner 5, the thermal power when adjusting the thermal power adjustment lever 25 (refer FIG. 2) to the maximum can be controlled in two steps of strong thermal power and weak thermal power.

  In FIG. 3, the first gas supply pipe 10 includes one branch pipe 20, but the heating power may be further adjusted in multiple stages by increasing the number of branch valves and the number of solenoid valves. . In the present embodiment, the electromagnetic valves 61 and 62 are keep solenoid valves that open and close the flow path, but may be valves that can continuously increase or decrease the flow path area, for example.

  Further, in the second gas supply pipe for the standard burner 6, similarly to the first gas supply pipe 10, a branch pipe (not shown), a safety valve 39 (see FIG. 5), and electromagnetic valves 63 and 64 (see FIG. 5). Are provided. Therefore, even in the standard burner 6, the gas flow rate flowing through the standard burner 6 can be adjusted in two stages by opening and closing the electromagnetic valve 63. A safety valve 40 is provided in the third gas supply pipe for the grill burner.

  Next, the cooking mode of the stove 1 will be described with reference to FIG. In the stove 1, three heating cooking modes can be set in the high thermal power burner 5. For example, there are three types: a normal mode, a roasting mode, and a fried food mode. Each mode differs in terms of ignition conditions, reference cut temperature, thermal power adjustment during cooking, and the like.

  The normal mode is used for placing the cooking pot on Gotoku 11 and cooking the food. The ignition conditions in the normal mode are that the ignition switch 21 is pressed (ignition operation) without pressing the release switch 81 (release operation), and that the cooking pan is detected on the virtues 11 by the pan mounting sensor 53. . The reference cut temperature is set to 270 ° C., for example. The reference cut temperature is a temperature detected by the thermistor 7 and forcibly stops the combustion of the strong thermal burner 5. The heating power during cooking is automatically adjusted depending on whether or not there is a cooking pan on Gotoku 11 in the main process described later. When there is a cooking pan, it is automatically adjusted to high heating power, and when there is no cooking pan, it is automatically adjusted to low heating power. Adjusted. When it is automatically adjusted to low heat power, the fire is extinguished after a predetermined time. If the release switch 81 is pressed during cooking in the normal mode, the setting is changed to the stir-fry mode.

  The roasting mode is used for cooking while heating a food (eg, laver) above the high heat burner 5 without placing a cooking pan or the like on the virtues 11. The ignition condition in the burning mode is that the ignition switch 21 is pressed after the release switch 81 is pressed, and that the cooking pan is not detected on the virtues 11 by the pan mounting sensor 53. The reference cut temperature is set to a temperature higher than that in the normal mode, for example, set to 300 ° C. As long as the cooking pot is not placed on Gotoku 11, the heating power during cooking is maintained at a predetermined heating power in principle. In addition, when a cooking pan is mounted on Gotoku 11 during cooking, it is considered that the user has finished cooking and the setting is automatically changed to the normal mode. Further, when the release switch 81 is pressed during cooking in the cooking mode, the setting is changed to the normal mode.

  The stir-fried food mode is used to cook fried foods such as vegetables at a high temperature using a cooking pan such as a frying pan. The fried food mode cannot be set from the initial state, and can be changed only when changing from the normal mode during cooking. The reference cut temperature is set to a temperature higher than that in the normal mode, and is set to 310 ° C., for example. In the stir-fried food mode, cooking is often performed at a relatively high temperature as compared with normal heat cooking. Therefore, by setting the reference cut temperature higher, cooking of the fried food at a high temperature is enabled. The heating power during cooking is automatically adjusted to a high heating power when there is a cooking pan and to a low heating power when there is no cooking pan. When the release switch 81 is pressed during cooking in the fried food mode, the setting is changed to the normal mode.

  Next, the electrical configuration of the stove 1 will be described with reference to FIG. The stove 1 includes a control circuit 70. The control circuit 70 includes a timer, a grill timer, an I / O interface, etc. (not shown) in addition to the CPU 71, ROM 72, and RAM 73. The timer and grill timer operate by program. The CPU 71 performs overall control of various operations of the stove 1. The ROM 72 stores various control programs for the stove 1. The RAM 73 temporarily stores various information on the stove 1. In the present embodiment, a pan flag described later is stored in the RAM 73.

  The control circuit 70 includes a power supply circuit 41, a switch input circuit 42, a thermistor input circuit 43, an operation panel input circuit 44, an igniter circuit 45, a safety valve circuit 46, a solenoid valve circuit 47, a sensor input circuit 48, a buzzer circuit 49, and a voice synthesizer. A circuit 50 and the like are connected to each other. The power supply circuit 41 supplies power to various circuits by two dry batteries mounted on the battery box 29 (see FIG. 2). The power supply circuit 41 includes a transistor switch (not shown). The switch input circuit 42 detects the pressing of the ignition switches 21 to 23 and the release switch 81, respectively. The operation panel input circuit 44 inputs various operations on the operation panel 30. The igniter circuit 45 drives igniters 35 to 37 of various burners. The safety valve circuit 46 opens and closes each safety valve 38-40. The electromagnetic valve circuit 47 opens and closes the electromagnetic valves 61 to 64. The sensor input circuit 48 is connected to pan mounting sensors 53 and 54, respectively. The sensor input circuit 48 inputs detection signals of the pan mounting sensors 53 and 54. A piezoelectric buzzer 55 is connected to the buzzer circuit 49. The buzzer circuit 49 drives the piezoelectric buzzer 55. The voice synthesizing circuit 50 synthesizes a voice guide voice output from the speaker 56.

  The ignition switches 21 to 23 and the release switch 81 are connected in parallel to the switch input circuit 42 and the positive side of the dry battery stored in the battery box 29, respectively. The negative side of the dry battery is connected to the power supply circuit 41, and the switch input circuit 42 is also connected to the power supply circuit 41. When one of the ignition switches 21 to 23 and the release switch 81 is pressed by the user, the power of the dry cell is supplied to the power circuit 41 via the switch input circuit 42, and the transistor switch of the power circuit 41 is turned on. Is done. Thereby, a current flows from the power supply circuit 41 to various circuits, and the power supply of the stove 1 is turned on. The switch input circuit 42 detects which one of the ignition switches 21 to 23 and the release switch 81 is pressed, and inputs the detection signal to the control circuit 70. Therefore, the CPU 71 can determine which switch 21 to 23, 81 is pressed to turn on the power.

  Next, main processing by the CPU 71 will be described with reference to the flowcharts of FIGS. For convenience of explanation, here, a case where cooking is performed using the high thermal power burner 5 will be described as an example. Further, the thermal power control of the strong thermal power burner 5 in the present process is controlled to the strong thermal power or the weak thermal power after the thermal power adjustment lever 25 is adjusted to the maximum. In the following description, adjustment of the heating power adjustment lever 25 is not mentioned.

  This process is executed when the main program stored in the ROM 72 is read by the CPU 71 when the power of the stove 1 is turned on. For convenience of explanation, in this embodiment, it is assumed that the power source of the stove 1 is turned on by pressing the ignition switch 21 or pressing the release switch 81. The user presses the ignition switch 21 when cooking in the normal mode. On the other hand, when cooking in the cooking mode, after pressing the release switch 81, the ignition switch 21 is pressed.

  As shown in FIG. 6, first, the CPU 71 determines whether or not the power is turned on by an ignition operation by the ignition switch 21 (S1). When the CPU 71 determines that the power is turned on by the ignition operation (S1: YES), the CPU 71 sets the normal mode (S5). At this time, the reference cut temperature is set to the normal mode reference cut temperature (270 ° C.).

  On the other hand, when it is determined that the power is turned on by pressing the release switch 81 (S1: NO), timer measurement is started (S2). A timer (not shown) measures the time from when the release switch 81 is pressed and the power is turned on. The CPU 71 determines whether or not a predetermined time (for example, 30 seconds) has elapsed since the release switch 81 was pressed and the power was turned on (S3). Until the predetermined time has elapsed (S3: NO), it is determined whether or not an ignition operation has been performed by the ignition switch 21 (S4). Until the ignition switch 21 is pressed (S4: NO), the process returns to S3, and the ignition operation by the ignition switch 21 is continuously monitored (S4). When the ignition operation is performed by the ignition switch 21 (S4: YES), the CPU 71 sets the turning mode (S6). At this time, the reference cut temperature is set to the reference cut temperature (300 ° C.) for the turning mode.

  If the predetermined time has elapsed without the ignition switch 21 being pressed even though the release switch 81 is pressed (S3: YES), the user may have forgotten to cook. Therefore, the process is terminated as it is. In this way, when the user's purpose of “cooking cooking” is incomplete, the high power burner 5 is not ignited, so the safety of the stove 1 can be further improved. From here on, the case will be described separately in the case of “setting to the normal mode” and the case of “setting to the turning mode”.

[Set to normal mode]
When the CPU 71 is set to the normal mode (S5), the CPU 71 determines whether or not the cooking pan is placed on the virtues 11 (S7). When the cooking pan is placed on the five virtues 11 (S7: YES), the high thermal power burner 5 is ignited (S8). On the other hand, when the cooking pan is not placed on Gotoku 11 (S7: NO), the user puts the cooking pan on Gotoku 11 even though the user plans to cook in the normal mode and presses the ignition switch 21. It is not mounted on. That is, since it is not a method of using the normal mode that should be originally intended, ignition of the high thermal power burner 5 is prohibited (S9), the LED 32 (see FIG. 2) of the operation panel 30 is further blinked, and a warning sound is output. After performing the notification process such as performing (S10), the present process is terminated. Thereby, the user can recognize that the ignition of the high-power burner 5 is forcibly prohibited by not placing the cooking pan on the virtues 11. Then, the user can attempt to ignite the high-power burner 5 by placing the cooking pan on the virtues 11 and then pressing the ignition switch 21 again.

  On the other hand, when the high thermal power burner 5 is ignited in S8, heating control in the normal mode is executed. The CPU 71 determines whether or not the cooking pan is placed on the Gotoku 11 (S11). When the cooking pan is placed on the five virtues 11 (S11: YES), the heating power of the strong heating burner 5 is automatically adjusted to the strong heating power by opening the solenoid valve 61 (see FIG. 3) (S12).

  Here, the user sometimes lowers the cooking pot from the top of Gotoku 11 during cooking, and places another cooking pot on Gotoku 11 again to continue cooking. In addition, when changing the position of the cooking pot placed on the virtues 11, the cooking pots may once separate from the virtues 11. In such a case (S11: NO), the solenoid valve 61 (see FIG. 3) is closed and the gas flow rate is reduced without extinguishing the strong thermal power burner 5 (S13). Thereby, since the user does not need the operation of reigniting with the ignition switch 21, if the cooking pan is placed on the virtues 11 as it is, the cooking can be continued. Moreover, the amount of gas can also be saved by making it a low heating power when a cooking pan leaves | separates from 5 virtues 11.

  Then, the CPU 71 determines whether or not a predetermined time has elapsed since the high thermal power burner 5 was adjusted to the low thermal power (S17). If the predetermined time has not elapsed (S17: NO), it is determined whether or not a fire extinguishing operation has been performed by re-pressing the ignition switch 21 (S14). When a fire extinguishing operation is performed (S14: YES), the strong heating burner 5 is extinguished (S18), and this process is terminated. On the other hand, if the fire extinguishing operation has not been performed (S14: NO), it is further determined whether or not the release switch 81 has been pressed (S15). The use of the release switch 81 here will be described later. When the release switch 81 has not been pressed (S15: NO), the process returns to S11, and the thermal power control of the high thermal burner 5 is continued in accordance with whether or not the cooking pan is placed in the normal mode (S11 to S13). ).

  In addition, in the normal mode, when a predetermined time has elapsed since the cooking pan is not placed, and the low heating power is adjusted (S17: YES), the high heating power burner 5 is extinguished (S18), and this processing is terminated. To do. In this way, when the cooking pan is lowered from the virtues 11, the high thermal power burner 5 does not continue to burn, so the safety of the stove 1 is further improved.

  By the way, when finishing the stir-fried vegetables without draining, the user may desire cooking with a stronger heating power. In this case, the user may press the release switch 81 after ignition in the normal mode. In other words, it is necessary to provide another switch by using the release switch 81 that is originally pressed to release the normal mode as a switch for setting the stir-fry mode while being ignited in the normal mode. Disappears. Therefore, the usability of the stove 1 can be improved while suppressing an increase in manufacturing cost. In the present embodiment, it is not possible to set the fried food mode immediately after ignition. In the stir-fry mode, the reference cut temperature is set higher than in the normal mode, so that the safety of the stove 1 can be further improved by allowing the user to operate stepwise through the normal mode.

  Therefore, when the release switch 81 is pressed (S15: YES), the CPU 71 changes the setting from the normal mode to the fried food mode (S16). At this time, the reference cut temperature is changed to the reference cut temperature (310 ° C.) for the fried food mode.

  Subsequently, as shown in FIG. 7, the CPU 71 notifies the user that the cooking mode has been changed by executing a notification process such as outputting a “beep” warning sound (S19). . Further, as in the normal mode, it is determined whether or not the cooking pan is placed on Gotoku 11 also in the fried food mode (S20). When the cooking pan is placed on the five virtues 11 (S20: YES), the heating power of the strong heating burner 5 is automatically adjusted to the strong heating power by opening the electromagnetic valve 61 (S21). Thereby, the user can start cooking fried food.

  The CPU 71 determines whether or not a fire extinguishing operation has been performed by re-pressing the ignition switch 21 (S22). When the fire extinguishing operation is not performed (S22: NO), it is determined whether or not the release switch 81 is pressed (S23). If the release switch 81 has not been pressed (S23: NO), the process returns to S20, and the placement or non-placement of the frying pan on the virtues 11 is monitored.

  By the way, in cooking fried foods, the frying pan may be shaken in small increments so that ingredients do not burn on the frying pan surface. Also, by lifting and returning the frying pan, the ingredients on the frying pan may be turned over. At this time, the frying pan once leaves the top of Gotoku 11. Here, when the solenoid valve 61 is closed and automatically adjusted to a low heating power immediately after the solenoid valve 61 is closed as in the normal mode, the frying pan temperature is lowered, so that the finish of the cooked product is deteriorated.

  Therefore, the CPU 71 starts timer measurement when the frying pan leaves the virtues 11, and determines whether or not a standby time (for example, 10 seconds) has elapsed (S24). Until 10 seconds elapse (S24: NO), the process proceeds to S22 and S23, and the strong heat power up to that point is maintained. When the user returns the frying pan within 10 seconds and places it on the five virtues 11 (S20: YES), the high heat power is maintained as it is (S21). As described above, after the frying pan is separated from the virtues 11, the frying pan temperature is increased while enabling the frying pan returning operation effective for cooking the fried food by delaying the timing of closing the solenoid valve 61 and adjusting to the low heating power. Can be maintained. Therefore, the finished product can be further improved.

  On the other hand, if 10 seconds have elapsed since the frying pan left the virtues 11 (S24: YES), it is automatically adjusted to a low heating power (S25). Further, the CPU 71 determines whether or not a predetermined time has elapsed since the high-power burner 5 was automatically adjusted to the low-power (S26). If the predetermined time has not elapsed (S26: NO), it is determined whether or not a fire extinguishing operation has been performed by re-pressing the ignition switch 21 (S22). When the fire extinguishing operation is not performed (S22: NO), it is determined whether or not the release switch 81 is pressed (S23).

  The user may finish cooking the stir-fry and return to normal heat cooking. In such a case, the user may press the release switch 81. When the release switch 81 is pressed (S23: YES), the CPU 71 returns to FIG. 6 and changes the setting to the normal mode (S5). At this time, the reference cut temperature is changed to the reference cut temperature for normal mode (270 ° C.). In this way, the user can easily and quickly change the setting from the fried food mode to the normal mode simply by pressing the release switch 81. Then, by using the release switch 81 that is originally pressed to release the normal mode as a switch for returning from the stir-fry mode to the normal mode during cooking in the stir-fry mode, another switch is newly added. There is no need to provide it. Therefore, the usability of the stove 1 can be improved while suppressing an increase in manufacturing cost. This eliminates the troublesome operation of once extinguishing the strong thermal burner 5 and igniting it again in the normal mode, so that the cooking time can be shortened.

  On the other hand, when the release switch 81 has not been pressed (S23: NO), the user continues cooking the fried food. Therefore, the process returns to S20 and continues to the cooking pot on the virtues 11 in the fried food mode. Depending on the presence or absence, the thermal power control of the strong thermal power burner 5 is continued.

  In addition, when the cooking pan is not placed in the stir-fry mode and the predetermined time has elapsed since the adjustment to the low heating power (S26: YES), the high heating power burner 5 is extinguished (S27), and this processing is performed. finish. In this way, when the cooking pan is lowered from the virtues 11, the high thermal power burner 5 does not continue to burn, so the safety of the stove 1 is further improved. If the user performs a fire extinguishing operation with the ignition switch 21 during cooking in the stir-fry mode (S22: YES), the high heat burner 5 is extinguished (S27), and this process is terminated.

[Set to talk mode]
As shown in FIG. 6, when the CPU 71 is set to the cooking mode (S <b> 6), as shown in FIG. 8, the CPU 71 determines whether or not the cooking pan is placed on the virtues 11 (S <b> 28). When the cooking pan is not placed on the five virtues 11 (S28: NO), the high thermal power burner 5 is ignited (S29). On the other hand, when the cooking pan is placed on Gotoku 11 (S28: YES), the user intends to perform cooking by heating in the burning mode, and presses the release switch 81 and then presses the ignition switch 21. Regardless, the cooking pot is mistakenly placed on Gotoku 11 and is not the original method of use in the beat mode. Accordingly, the ignition of the strong thermal burner 5 is prohibited (S32), and further, the LED 32 (see FIG. 2) of the operation panel 30 is blinked and a warning sound such as “beep” is output (S33). ), This process is terminated. Thereby, the user can recognize that the ignition of the strong thermal burner 5 is forcibly prohibited. The user can attempt to ignite the high-burning power burner 5 by lowering the cooking pot from the top of the virtues 11 and pressing the ignition switch 21 again in order to perform cooking in the burning mode.

  And CPU71 will perform the heating control in a burning mode, if the strong heating power burner 5 is normally ignited (S29) because the cooking pan is not mounted on the virtues 11. The user can beat food such as seaweed above the burning high-power burner 5. CPU71 judges whether the cooking pot is mounted on Gotoku 11 (S30). When the cooking pan is not placed on the virtues 11 (30: NO), it is determined whether or not the release switch 81 is pressed while continuing the combustion of the high thermal power burner 5 (S34).

  Here, the user may want to perform normal heat cooking by placing the cooking pan on the virtues 11 without extinguishing the fire as it is after performing roasting cooking. In that case, the user presses the release switch 81. In other words, it is necessary to provide another switch by using the release switch 81 that is originally pressed to release the normal mode as a switch for returning from the normal mode to the normal mode during cooking in the normal mode. Disappears. Therefore, the usability of the stove 1 can be improved while suppressing an increase in manufacturing cost.

  Then, when the release switch 81 is pressed (S34: YES), the CPU 71 executes notification processing such as outputting a beeping warning sound (S31) and returns to FIG. 6 to change the setting to the normal mode. (S5). At this time, the reference cut temperature is changed to the reference cut temperature for normal mode (270 ° C.). In this way, the user can easily and quickly change from the turn mode to the normal mode by simply pressing the release switch 81. When the setting is changed from the hit mode to the normal mode, a beep is sounded, so that the user can confirm that the setting has been changed to the normal mode. If the release switch 81 is not pressed (S34: NO), it is determined whether or not a fire extinguishing operation has been performed by pressing the ignition switch 21 again (S35). When the fire extinguishing operation is not performed (S35: NO), the process is returned to S30, and in the fired mode, it is monitored whether the cooking pan is placed on the five virtues 11 and the combustion of the high thermal power burner 5 is continued.

  By the way, as described above, when the user wants to change the setting from the beat mode to the normal mode, the user only has to press the release switch 81, but forgets to press the release switch 81 and places the cooking pot on the virtues 11 as it is. There is a possibility of putting it. At this time, if the cooking mode is left set, cooking is continued with the reference cut temperature being high. Moreover, when the cooking pan is lowered again from the top of Gotoku 11, there is an inconvenience that the heating power of the strong heating burner 5 does not become weak heating power.

  Therefore, when the cooking pan is placed on the virtues 11 (S30: YES), the CPU 71 executes a notification process such as outputting a warning sound of “pipi” (S31), and returns to FIG. The setting is changed to the mode (S5). At this time, the reference cut temperature is changed to the reference cut temperature for normal mode (270 ° C.). In this way, even when the user forgets to press the release switch 81 and places the cooking pan on the virtues 11, the setting is changed from the burning mode to the normal mode. It can be further improved. Then, when the setting is changed from the hit mode to the normal mode, a warning sound is heard, so that the user can notice that the setting has been changed to the normal mode. When the user performs a fire extinguishing operation using the ignition switch 21 during cooking in the fire mode (S35: YES), the strong heating power burner 5 is extinguished (S36), and the present process is terminated.

  In the above description, the ignition switch 21 is an example of the “operation means” in the present invention. The pan mounting sensor 53 is an example of the “detecting means” in the present invention. CPU71 which performs the main process of FIGS. 6-8 is an example of the "heating cooking mode setting means" of this invention. The release switch 81 is an example of the “switch” in the present invention. The thermistor 7 is an example of the “temperature detection means” in the present invention. The CPU 71 that executes the process of S28 shown in FIG. 6 is an example of the “determination means” in the present invention. The CPU 71 that executes the process of S29 is an example of the “ignition permission means” in the present invention. The CPU 71 that executes the process of S32 is an example of the “ignition limiting means” in the present invention. The CPU 71 that executes the process of S31 shown in FIG. 8 is an example of the “first notification unit” in the present invention. The CPU 71 that executes the process of S19 shown in FIG. 7 is an example of the “second notification unit” in the present invention.

  As described above, in the stove 1 of the present embodiment, when the ignition operation is performed by the ignition switch 21 that performs the ignition operation of the strong thermal burner 5, the power is turned on and the strong thermal burner 5 is ignited. A combustion operation is started. The pan placement sensor 53 detects whether or not a cooking pan is placed on the virtues 11. The CPU 71 of the stove 1 sets the normal mode in the initial state. In the normal mode, ignition of the high thermal power burner 5 is permitted when the cooking pan is detected on the virtues 11 by the pan mounting sensor 53, and ignition of the high thermal power burner 5 is prohibited when the cooking pan is not detected. The When the ignition switch 21 is pressed after the release switch 81 is pressed by the user, the CPU 71 sets the turning mode. In the burning mode, ignition of the high-power burner 5 is permitted when the cooking pan is not detected on the virtues 11 by the pan mounting sensor 53, and ignition of the strong-power burner 5 is prohibited when the cooking pan is detected. The

  In addition, when the release switch 81 is pressed during cooking in the normal mode, the CPU 71 sets the frying mode. In the stir-fried food mode, the reference cut temperature for forcibly stopping the combustion of the strong thermal burner 5 is set higher than in the normal mode. Further, the CPU 71 changes the setting to the normal mode when the release switch 81 is pressed during cooking in the cooking mode. Further, the CPU 71 changes the setting to the normal mode when the release switch 81 is pressed during cooking in the fried food mode.

  Thus, by changing the function of the release switch 81 that is originally pressed to release the normal mode in accordance with the use state of the stove 1, setting and changing a plurality of cooking modes with one release switch 81 It can be performed. This makes it possible to set and change the three modes of “normal mode”, “boiled mode”, and “stir fry mode” without increasing the number of switches, thus providing an easy-to-use stove 1 while suppressing an increase in manufacturing cost. it can. In the present embodiment, the safety mode of the stove 1 can be improved by enabling the setting from the turning mode to the normal mode and prohibiting the opposite. When the cooking container is unconsciously placed in the turning mode, the normal mode is automatically set, so that safety is further improved.

  In this embodiment, in particular, since the user needs to press the ignition switch 21 after pressing the release switch 81, the cooking purpose that the user performs roasting cooking can be clarified. Furthermore, since the troublesome setting for cooking is not necessary, the convenience of the stove 1 can be improved.

  Further, in the burning mode, when the cooking pan is placed on the five virtues 11, the strong heating burner 5 is not ignited. In other words, when the usage is different from that in the case of roast cooking, the ignition of the high-burning power burner 5 is prohibited, and the correct operation is urged to lead to the operation according to the purpose of use. Further, since the normal mode is not switched to the turning mode after the ignition operation, the user's purpose of use can be made clearer and the safety of the stove 1 can be improved.

  In the present embodiment, in particular, when the setting is changed from the beat mode to the normal mode, a notification process such as outputting a beep sound is executed, so that the user is set from the beat mode to the normal mode. I can notice that. Therefore, the safety of the stove 1 can be improved.

  In the present embodiment, in particular, even when the setting is changed from the normal mode to the stir-fry mode, a notification process such as outputting a beep sound is executed, so that the user switches from the normal mode to the roaring mode. You can notice that the setting has been changed. Therefore, the safety of the stove 1 can be improved.

  In the present embodiment, in particular, the power is turned on even when the release operation by the release switch 81 is performed before the ignition operation by the ignition switch 21 is performed. The CPU 71 can easily determine whether it is a normal ignition operation or an ignition operation after the release operation is performed by determining whether the power is turned on by the ignition operation or the release operation.

  In the present embodiment, the normal mode can be returned to when the cooking pan is detected by the pan mounting sensor 53 in the state in which the strong thermal burner 5 is ignited in the burning mode. As a result, while the user cooked without placing the cooking pot on Gotoku 11, the cooking pot was left unconsciously and another cooking was started. In this case, since the normal mode is automatically returned from the turning mode, the safety and convenience of the stove 1 are improved.

  In the present embodiment, in particular, when the release switch 81 is pressed in the normal mode in a state where the strong thermal burner 5 is ignited, the setting is changed from the normal mode to the fried food mode. In the fried food mode, the reference cut temperature as a safety function is set to a higher temperature than in the normal mode. Thus, since the reference cut temperature can be changed by the release switch 81, the convenience of the stove 1 can be improved.

  In the present embodiment, in particular, when the state in which the ignition operation by the ignition switch 21 is not performed continues for a predetermined time after the release switch 81 is pressed, the main process is terminated. Therefore, when the ignition switch 21 is pressed next time, the normal mode is set instead of the turning mode. For example, there is a case where the user forgets the ignition operation by the ignition switch 21 after performing the release operation with the release switch 81 with the intention of cooking. In such a case, when the ignition switch 21 is pressed with the intention of performing normal cooking next time, the release operation of the previous release switch 81 is canceled and the normal mode is set, so that the safety of the stove 1 is further increased. It can be improved.

  In addition, this invention is not limited to the said embodiment, A various change is possible. For example, in the above-described embodiment, the ignition control of the strong thermal burner 5 has been described as an example, but the same control may be performed in the standard burner 6 as well.

  Further, in the above-described embodiment, every time the release switch 81 is pressed, a warning sound “beep” may be output from the speaker 56 or a notification process such as blinking the LED 32 may be executed. Thereby, the user can re-recognize the release operation by the release switch 81 and the switching operation of various cooking modes. In addition, when set to the talk mode, a warning sound such as “beep” may be output from the speaker 56 or the LED 32 may be blinked. Thereby, it can be made to recognize that the user ignited in the beat mode.

  Moreover, in the said embodiment, the reference | standard cut temperature of each mode shown in FIG. 4 is an example, Comprising: You may set with a numerical value other than this, and may be changed suitably by a user.

  Further, in the above embodiment, the setting change to the fried food mode can be performed during the cooking in the normal mode, but the fried food mode may not be provided.

  Moreover, in the said embodiment, you may make it alert | report with the audio | voice from the speaker 56, when heating cooking mode is changed during cooking. At that time, a warning sound such as a buzzer may be used, and a voice message may be output. Furthermore, the current cooking mode may be displayed on the display screen 31 of the operation panel 30.

  Moreover, in the said embodiment, the reference | standard cut temperature set to each various cooking mode shown in FIG. 4 is an example, and temperatures other than these may be sufficient. Note that the reference cut temperature in the normal mode is preferably set lower than the oil ignition temperature. Moreover, it is preferable to set the reference cut temperature in the stir-fried food mode below the temperature at which the thermistor 7 is expected to fail even if it is near the oil ignition temperature.

DESCRIPTION OF SYMBOLS 1 Stove 5 Strong heat burner 7 Thermistor 11 Gotoku 21 Ignition switch 53 Pan mounting sensor 56 Speaker 70 Control circuit 71 CPU
81 Release switch

Claims (4)

A burner, a container detecting means for detecting the cooking container which is arranged above the burner, a temperature detecting means configured to contact the bottom surface of the cooking container, and operating means for performing an ignition operation of the burner In a stove comprising a single switch for selecting a plurality of cooking modes, and cooking mode setting means for setting the cooking mode,
The cooking mode is at least
A reference cut temperature for forcibly stopping combustion of the burner is set to a first cut temperature, and when the cooking container is not detected by the container detection means during combustion of the burner, the heating power of the burner is limited. Normal mode to set
A setting mode in which the reference cut temperature is set to a second cut temperature that is equal to or higher than the first cut temperature, and the burner is set so as to maintain the thermal power of the burner regardless of the detection result of the container detection means;
When the reference cut temperature is set to a third cut temperature that is equal to or higher than the first cut temperature, and the cooking container is not detected by the container detection means during combustion of the burner, the heating power of the burner is limited. And a stir-fry mode that you set to
The cooking mode setting means is
When the burner ignition operation is performed without pressing the switch, the normal mode is set,
In the case where the ignition operation is performed after the switch is pressed, the firing mode is set,
When the switch is pressed during cooking in the cooking mode and when the cooking container is detected by the container detection means, the normal mode is set,
The stove is characterized in that when the switch is pressed during cooking in the normal mode, the stir-fry mode is set. A determination means for determining whether or not the cooking container is detected by the container detection means when the cooking mode setting means sets the cooking mode;
Ignition permission means for allowing ignition of the burner when the determination means determines that the cooking container is not detected;
The stove according to claim 1, further comprising: an ignition limiting unit that limits ignition of the burner when the cooking container is detected by the determination unit.   The stove according to claim 1 or 2, further comprising first notifying means for notifying when the cooking mode setting means is set to the normal mode from the cooking mode.   The stove according to any one of claims 1 to 3, further comprising second notifying means for notifying when the cooking mode setting means sets the stir-fry mode from the normal mode.

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