JP7178080B2 - Gas stove - Google Patents

Description

The present invention relates to gas stoves.

2. Description of the Related Art Conventionally, there is known a heating cooker that lights a battery replacement lamp and notifies the battery replacement by voice when the battery voltage drops (see, for example, Patent Literature 1).

JP 2015-50786 A

However, in the heating cooker described in Patent Document 1, the user may not notice the battery replacement lamp, or the user may still be able to use the device normally even if the voice alerts the user, so the batteries are often replaced immediately. If the battery is used continuously even though the battery voltage is low, the battery may suddenly run out completely, making it impossible to cook at all.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a gas stove which makes it possible for users to be more aware of battery replacement and which allows the minimum amount of cooking.

A gas stove according to claim 1 is a gas stove that is driven by a battery as a power source and includes a plurality of burners and an igniter provided corresponding to the plurality of burners, wherein a remaining amount detection means for detecting the remaining amount of the battery; and burner limiting means for limiting usable burners to a specific burner among the plurality of burners according to the remaining amount detected by the remaining amount detecting means, wherein the burner limiting means ignites the specific burner. When an operation is performed, the igniter is allowed to be energized, and when a burner other than the specific burner among the plurality of burners is ignited, the igniter is de-energized and the other burners are ignited. It is characterized in that power supply to a safety valve provided in a gas supply pipe for supplying gas to the burner is cut off.

In the gas stove according to claim 2, there is provided a judgment means for judging whether the residual amount detected by the residual amount detection means is less than a threshold value, and when the judgment means judges that the residual amount is less than the threshold value, it is time to replace the battery. When the judgment means determines that the remaining amount is less than the threshold value, the burner limiting means limits the ignition of the other burner in conjunction with the notification by the notification means. good. The determination means may determine whether the remaining amount detected by the remaining amount detection means is equal to or less than a threshold.

The plurality of burners of the gas stove according to claim 3 includes a first stove burner and a second stove burner having a smaller maximum heating power than the first stove burner, and the burner limiting means restricts the first stove burner to the It should be set for a specific burner.

The plurality of burners of the gas stove according to claim 4 includes a first stove burner and a second stove burner having a smaller maximum heating power than the first stove burner, and the burner limiting means restricts the second stove burner to the It should be set for a specific burner.

In the gas stove according to claim 5, there is provided a receiving means for receiving an operation of the burner, and when the operation of the burner received by the receiving means is restricted by the burner restricting means, use of the burner is restricted. It is preferable to provide a use limit notification means for notifying the.

A gas stove according to claim 6 is a gas stove that is driven by a battery as a power source, has two or more functions that can be executed during combustion of the burner, and is related to combustion control of the burner. and function limiting means for limiting an executable function to a specific function among the two or more functions according to the remaining amount detected by the remaining amount detecting means.

In the gas stove according to claim 7, there is provided a judgment means for judging whether the residual amount detected by the residual amount detection means is less than a threshold value, and when the judgment means judges that the residual amount is less than the threshold value, it is time to replace the battery. and the function limiting means may limit the function in conjunction with the notification by the notifying means when the determining means determines that the remaining amount is less than the threshold value. The determination means may determine whether the remaining amount detected by the remaining amount detection means is equal to or less than a threshold.

The gas stove according to claim 8 comprises reception means for receiving operation of the function, and operation determination means for determining whether the operation of the function received by the reception means is operation of the function restricted by the function restriction means. and when the operation determining means determines that the operation of the function accepted by the accepting means is the operation of the function restricted by the function restricting means, the function accepted by the accepting means is used. and an unusable notification means for notifying that the is restricted.

Preferably, the function of the gas stove according to claim 9 includes a temperature control function capable of adjusting the temperature of the food to be cooked to a set temperature, and the function limiting means does not limit the temperature control function.

According to the gas stove of claim 1, by limiting usable burners to specific burners when the remaining battery power is low, it is possible to make the user feel more inconvenient than normal. As a result, it is possible to strengthen the consciousness of replacing the battery, and it is possible to perform the minimum cooking with a specific burner, so that it is possible to provide a user-friendly gas stove. It should be noted that the remaining battery level means the battery voltage in the first and second embodiments described below.

According to the gas stove of claim 2, the user is notified that it is time to replace the battery when the remaining battery level is less than the threshold. In conjunction with this, the usable part is restricted to a specific part, so it is possible to further strengthen the awareness of battery replacement.

According to the gas stove of claim 3, when the usable portion is limited to the specific portion when the remaining battery level is low, the specific portion is set to the first stove burner. Since the first stove burner has a higher maximum heating power than the second stove burner, even if the use of the second stove burner is restricted, the heating power of the first stove burner can be adjusted.

According to the gas stove of claim 4, when the usable part is restricted when the remaining battery level is low, the usable part is set to the second stove burner. If the use of the first stove burner is restricted, the second stove burner with a smaller maximum heating power must be used, which makes the user feel more inconvenient than normal.

According to the gas stove of claim 5, in a state where the remaining battery level is low and usable parts are limited, if the operation of the part received from the user is the operation of the restricted part, the part can not be used. Notify you of restrictions. This makes it possible to make the user strongly aware that the use is restricted due to the low battery level.

According to the gas stove of claim 6, by limiting the executable functions to specific functions when the remaining battery power is low, the user can be made to feel more inconvenient than during normal operation. As a result, it is possible to increase the user's awareness of changing the battery, and to perform the minimum cooking with the specific function, so that a user-friendly gas stove can be provided.

According to the gas stove of claim 7, the user is notified that it is time to replace the battery when the remaining battery level is less than the threshold. In conjunction with this, the functions that can be used are limited to specific functions, so that it is possible to make the user more conscious of replacing the battery.

According to the gas stove of claim 8, when the remaining battery level is low and the available functions are limited, if the operation of the function received from the user is the operation of the limited function, the use is limited. to inform you that This makes it possible to make the user strongly aware that the use is restricted due to the low battery level.

According to the gas stove of claim 9, the temperature control function is a function used for oil cooking, for example, and is a function capable of improving safety. If the remaining battery level becomes low and the function of the gas stove is limited, the temperature control function is not limited, so safety can be ensured.

1 is a perspective view of a stove 1; FIG. 2 is a front view of an operation panel section 21; FIG. 2 is a front view of an operation panel section 22; FIG. 2 is a block diagram showing an electrical configuration of the stove 1; FIG. 7 is a conceptual diagram of an ignition limit table 741; FIG. It is a flow chart of ignition control processing (first embodiment). 7 is a conceptual diagram of a function restriction table 742; FIG. 4 is a flowchart of combustion control processing (second embodiment);

First and second embodiments of the present invention will be described below. The device structures, flow charts, etc. described below are merely illustrative examples and not intended to be limiting unless specifically stated otherwise. The drawings are used to explain technical features that can be employed by the present invention. In the following description, left and right, front and rear, and top and bottom indicated by arrows in the drawings are used.

A first embodiment of the present invention will be described with reference to FIGS. 1 to 6. FIG. The structure of the stove 1 will be described with reference to FIG. The stove 1 is a table stove with a grill. A stove 1 includes a housing 2 and a top plate 3. The housing 2 is formed in a substantially rectangular parallelepiped shape with an open top. The top plate 3 is fixed to the upper opening of the housing 2 with screws (not shown). A right stove burner 4 is provided on the right side of the upper surface of the top plate 3, and a left stove burner 5 is provided on the left side of the upper surface. The right stove burner 4 is a high power burner, and the left stove burner 5 is a standard burner. The maximum firepower of the high power burner is greater than the maximum firepower of the standard burner.

A sensor assembly 20 is provided at the center of each of the right stove burner 4 and the left stove burner 5 . The sensor assembly 20 is provided so as to be retractable upward, and is constantly biased upward by a spring (not shown). The sensor assembly 20 is pushed down with its upper end in contact with the bottom of the cooking pot placed on the trivet. A thermistor 65 (see FIG. 4) is housed inside the sensor assembly 20 . A thermistor 65 senses pan bottom temperature via the upper end of the sensor assembly 20 .

An igniter 69 and a thermocouple 66 (see FIG. 3) are provided near the right and left stove burners 4 and 5, respectively. The igniter 69 is the ignition device for the corresponding stove burner. Thermocouples 66 detect misfires in the corresponding stove burners. An exhaust port 7 is provided on the rear end side of the upper surface of the top plate 3 . The exhaust port 7 discharges combustion exhaust from a grill chamber (not shown) installed in the housing 2 to the outside.

An opening (not shown) for grilling is provided in the center of the front surface of the housing 2 in the left-right direction. A grill opening (not shown) provided on the front side of the grill storage is arranged in the opening. A grill door 8 is provided in the opening so that it can be pulled out in the front direction. When the grill door 8 is pulled forward, the user can take out the saucer and grill (not shown) connected to the lower back surface of the grill door 8 from the grill chamber at the same time.

Operation buttons 11 and 12 are provided on the right side of the grill door 8 on the front surface of the housing 2 . An operation button 13 and a battery case 14 are provided on the left side of the grill door 8 . The operation button 11 is used to ignite/extinguish a grill burner (not shown) provided in the grill chamber. The operation button 12 operates ignition/extinguishing of the right stove burner 4 . The operation button 13 is used to ignite/extinguish the left stove burner 5 . The battery case 14 is arranged side by side on the left side of the operation button 13 and stores, for example, two batteries 26 (see FIG. 4) as a power source for the stove 1 .

A heating power adjusting lever 15 is provided above the operating button 11 , a heating power adjusting lever 16 is provided above the operating button 12 , and a heating power adjusting lever 17 is provided above the operating button 13 . The heating power adjusting lever 15 adjusts the heating power of the grill burner by rotating it in the horizontal direction. The heating power adjustment lever 16 adjusts the heating power of the right stove burner 4 by rotating it in the left-right direction. The heating power adjustment lever 17 adjusts the heating power of the left stove burner 5 by rotating it in the left-right direction. An operation panel section 21 is provided between the heating power control levers 15 and 16 and the operation buttons 11 and 12 . An operation panel section 22 is provided between the heating power control lever 17 and the operation button 13 and the battery case 14 .

As shown in FIG. 2, on the right side of the operation panel section 21, a timer display lamp 31, a stove timer selection switch 32, a timer display section 33, a "-" switch 34, a "+" switch 35, and the like are provided. It is about. The timer display lamp 31 is an illustration schematically showing the stove 1, and has LEDs (not shown) at three positions respectively corresponding to the right stove burner 4, the left stove burner 5, and the grill burner. The stove timer selection switch 32 can select only one of the right stove burner 4 and the left stove burner 5, and can set the stove timer. The stove timer can set an automatic fire extinguishing timer from 1 to 99 minutes, for example, with the right stove burner 4 or the left stove burner 5. When the set time is reached, a buzzer will notify the user and the fire will be extinguished automatically. The grill timer can set an automatic fire extinguishing timer from 1 to 15 minutes using the grill burner.

The timer display unit 33 is a 7-segment display, and alternately displays the set times of the stove timer and the grill timer for 5 seconds each. At this time, in the timer display lamp 31, the LED of the part displaying the remaining time blinks, and the LED of the part not displaying the time lights up. When changing the set time, press the "-" switch 34 or the "+" switch 35 to change the time while the LED at the location to be changed is blinking. After the change, it returns to the alternating display of the stove timer and the grill timer 5 seconds after the last operation.

On the left side of the operation panel section 21, a high temperature frying switch 41, a kettle switch 42, a temperature display lamp 43, a temperature selection switch 44 and the like are provided. The high temperature frying switch 41 is pressed down for 3 seconds or more to set the high temperature frying function in the right stove burner 4 . The high-temperature frying function is a function that alternates between high and low heat to cook at a higher temperature than usual. A kettle switch 42 is depressed to set the kettle function on the right stove burner 4 . The kettle function is a function to automatically extinguish the fire after boiling.

The temperature display lamp 43 can display the set temperature set in the temperature keeping function, and has four vertically aligned LEDs. The four LEDs correspond to 200° C., 180° C., 160° C., and 140° C. in order from the top. The temperature keeping function is a function of automatically adjusting the heating power of the right stove burner 4 (high power burner) to keep the temperature of the oil and the food to be cooked at the set temperature. Therefore, for example, it can be used for cooking fried foods such as tempura and fries, and grilled foods such as crepes and hamburgers. The set temperature can be set from 140° C. to 200° C. in 10° C. intervals by pressing the temperature selection switch 44 . Each time the temperature selection switch 44 is pressed, the set temperature is switched in increments of 10° C., and the four LEDs are accordingly switched between on and off. For example, when the temperature is set to 200° C., 180° C., 160° C., or 140° C., the corresponding LED lights up. When the temperature is set to 190° C., 170° C., or 150° C. without corresponding LEDs, the two LEDs corresponding to the two temperatures above and below the set temperature are lit. When the temperature selection switch 44 is pressed to turn off the four LEDs, the setting of the temperature keeping function is cancelled.

An ignition confirmation lamp 47 for the grill burner is provided on the lower right side of the operation panel section 21 and directly above the operation button 11 . When the grill burner is ignited, the ignition confirmation lamp 47 is lit, and when the grill burner is extinguished, the ignition confirmation lamp 47 is extinguished. An ignition confirmation lamp 48 for the right stove burner 4 is provided at a lower left portion of the operation panel portion 21 and directly above the operation button 12 . When the right stove burner 4 is ignited, the ignition confirmation lamp 48 is lit, and when the right stove burner 4 is extinguished, the ignition confirmation lamp 48 is extinguished.

Further, as shown in FIG. 3, a rice cooking switch 51 and a rice porridge/rice display lamp 52 are provided on the right side of the operation panel section 22 . The rice cooking switch 51 is pressed when setting the rice cooking function in the left stove burner 5 . The porridge/rice display lamp 52 has two vertically arranged LEDs, the upper LED corresponding to rice porridge and the lower LED corresponding to rice. Each time the rice cooking switch 51 is pressed, the lit LED of the rice porridge/rice display lamp 52 is switched, and when the two LEDs are turned off, the setting of the rice cooking function is cancelled.

A battery replacement sign 53 is provided on the lower left side of the operation panel section 22 . As will be described later, when the battery voltage of the battery 26 stored in the battery case 14 becomes less than a predetermined threshold (for example, 2.2 V), the battery replacement sign 53 lights up. An ignition confirmation lamp 55 for the left stove burner 5 is provided at a lower right portion of the operation panel portion 22 and directly above the operation button 13 . When the left stove burner 5 is ignited, the ignition confirmation lamp 55 is lit, and when the left stove burner 5 is extinguished, the ignition confirmation lamp 55 is extinguished.

The electrical configuration of the stove 1 will be described with reference to FIG. The stove 1 has a control circuit 70 . The control circuit 70 includes a CPU 71, a ROM 72, a RAM 73, a flash memory 74, a timer 75, and an I/O interface (not shown). The CPU 71 centrally controls various operations of the stove 1 . The ROM 72 stores various programs including an ignition control program. The ignition control program is for executing an ignition control process (see FIG. 6), which will be described later. The RAM 73 temporarily stores various information. The flash memory 74 is non-volatile and stores various data including an ignition limit table 741 (see FIG. 5), etc., which will be described later. The timer 75 is programmatically activated.

The control circuit 70 includes a power supply circuit 120, a switch input circuit 121, a panel control circuit 122, an audio output circuit 123, an LED driver circuit 124, a thermistor input circuit 125, a misfire detection circuit 126, a safety valve circuit 127, an electromagnetic valve circuit 128, and an igniter. A circuit 129 or the like is connected.

The substrate switch 18 and the igniter switch 19 are connected to the switch input circuit 121 . The substrate switch 18 is turned on/off in conjunction with the operation of the corresponding operation buttons 11-13. The switch input circuit 121 detects the state of the substrate switch 18 and inputs it to the power supply circuit 120 and the control circuit 70 . The igniter switch 19 is turned on after the substrate switch 18 is turned on in the process of pressing the corresponding operation buttons 11 to 13, and the substrate switch 18 is turned off in the process of pushing back the operation buttons 11 to 13. turn off before The switch input circuit 121 detects the state of the igniter switch 19 and inputs it to the control circuit 70 .

The power supply circuit 120 supplies power supplied from the battery 26 accommodated in the battery case 14 to various circuits when the board switch 18 of any of the operation buttons 11 to 13 is on. The control circuit 70 operates when power is supplied from the power supply circuit 120, and stops operating when the power supply is cut off. A voltage measuring section 27 is connected to the positive and negative poles of the battery 26 . The voltage measurement unit 27 receives a control command from the control circuit 70, measures the output voltage of the battery 26, and inputs the measurement result to the control circuit 70 as a measurement signal.

The panel control circuit 122 is connected to the various switches, display units, LEDs, and the like provided on the operation panel units 21 and 22 . The panel control circuit 122 detects pressing of various switches provided on the operation panel units 21 and 22 and inputs the result to the control circuit 70 . In addition, the panel control circuit 122 receives a control command from the control circuit 70, and controls the display on the display section and the lighting, blinking, etc. of the LED. The audio output circuit 123 receives a control command from the control circuit 70 and controls audio output from the speaker 25 provided in the housing 2 . The LED driver circuit 124 receives a control command from the control circuit 70 and controls lighting and extinguishing of the battery replacement sign 53 .

The thermistor input circuit 125 inputs the detection signal of the thermistor 65 to the control circuit 70 . The misfire detection circuit 126 detects misfires of the right stove burner 4 and the left stove burner 5 based on the thermoelectromotive force generated by the thermocouple 66 and inputs the result to the control circuit 70 . The safety valve circuit 127 receives a control command from the control circuit 70 and controls energization of the safety valve 67 . The safety valve 67 is provided in three gas supply pipes (not shown) that supply gas to each of the right stove burner 4, the left stove burner 5, and the grill burner. The safety valve 67 is a magnet type safety valve, and is mechanically opened by pushing the operation buttons 11 to 13 into an open state. The safety valve circuit 127 receives a control command from the control circuit 70 and energizes the safety valve 67 . The safety valve 67 remains open. For example, if the right stove burner 4 misfires, the thermoelectromotive force generated in the thermocouple 66 is lost, so the misfire detection circuit 126 inputs the misfire signal of the right stove burner 4 to the control circuit 70 . The safety valve circuit 127 receives a control command from the control circuit 70 and cuts off the energization of the safety valve 67 . As a result, the safety valve 67 is closed by the biasing force of a spring (not shown).

The solenoid valve circuit 128 opens and closes the solenoid valve 68 for adjusting the amount of gas under the control of the CPU 71 . The solenoid valve 68 is a gas cutoff keep solenoid valve. The solenoid valve 68 is provided, for example, in a bypass pipe (not shown) that branches from the middle of the gas supply pipe and joins again. By opening and closing the electromagnetic valve 68, the flow path of the bypass pipe is opened and closed, and the amount of gas supplied to the burner is increased or decreased. Thereby, the burner heating power can be adjusted to two levels of high heating power and low heating power. The igniter circuit 129 receives a control command from the control circuit 70 and drives the igniter 69 .

The ignition limit table 741 will be described with reference to FIG. In the first embodiment, when the battery voltage drops below a predetermined threshold, in addition to lighting the battery replacement sign 53, ignitable burners are limited to specific burners. As a result, the user is strongly urged to replace the battery, and the minimum amount of cooking is possible until the battery is replaced. The ignition restriction table 741 sets whether or not to restrict ignition for the right stove burner 4, the left stove burner 5, and the grill burner. In this embodiment, for example, the left stove burner 5 and the grill burner are set to have ignition limitation, and the right stove burner 4 is set to have no ignition limitation. That is, the right stove burner 4 is set as the specific burner.

The ignition control process will be described with reference to FIG. When the user presses one of the operation buttons 11 to 13 to turn on the corresponding substrate switch 18, the CPU 71 reads the ignition control program from the ROM 72 and executes this process. For example, when the operation button 13 is pressed, a main valve (not shown) and a safety valve 67 provided in the corresponding gas supply pipe of the left stove burner 5 are forcibly opened, and gas flows to the left stove burner 5 . The main valve maintains its open state in conjunction with depression of the operation button by a well-known push-push mechanism.

The CPU 71 recognizes the pressed operation button 13 by turning on the substrate switch 18 corresponding to the pressed operation button 13, and energizes the safety valve 67 provided in the gas supply pipe of the left stove burner 5 (S1 ). As a result, the safety valve 67 maintains its open state. While gas is being supplied to the flame port of the left stove burner 5 , the CPU 71 turns on the igniter 69 ( S<b>2 ) to ignite the left stove burner 5 . At this time, the CPU 71 measures the battery voltage by the voltage measuring section 27 and determines whether or not the measured battery voltage is 2.2 V or higher (S3). Scenes (1) to (3) will be described below in order.

(1) Battery voltage at left stove burner 5 ignition is 2.2 V or higher If the battery voltage is 2.2 V or higher (S3: YES), the remaining battery level is sufficient, so the CPU 71 closes the safety valve 67. Instead, the operation of the igniter 69 is continued to complete the ignition of the left stove burner 5 (S7). The CPU 71 starts normal control of the left stove burner 5 (S8).

In normal control, the CPU 71 determines whether or not the operation button 13 has been pressed again to extinguish the burning burner (S12). If the fire has not been extinguished (S12: NO), the CPU 71 determines whether the battery voltage is 2.2 V or higher (S14). If the battery voltage is 2.2 V or higher (S14: YES), the CPU 71 returns to S8 and continues normal control. On the other hand, if the battery voltage is less than 2.2 V (S14: NO), the CPU 71 turns on the battery replacement sign 53 (S15) to prompt the user to replace the battery. The CPU 71 returns to S8 and continues normal control.

When the operation button 13 is pressed again to extinguish the left stove burner 5, the push-push mechanism closes the main valve and cuts off the gas supply to the burner. 5 is extinguished (S12: YES). When the operation button 13 is pressed again, the substrate switch 18 is turned off, so the CPU 71 turns off the power supply to the safety valve 67 (S13). As a result, the safety valve 67 is also closed, so the CPU 71 terminates this process. Even when the battery voltage is 2.2 V or more when the right stove burner 4 is ignited, the CPU 71 performs the same process as when the left stove burner 5 is ignited.

(2) The battery voltage at the time of ignition of the left stove burner 5 is less than 2.2 V If the battery voltage is less than 2.2 V (S3: NO), the remaining battery level is low, so it is desirable to quickly replace the battery. . Therefore, the CPU 71 turns on the battery replacement sign 53 (S4) to prompt the user to replace the battery. Further, the CPU 71 determines whether or not there is an ignition restriction for the left stove burner 5 to be ignited based on the ignition restriction table 741 (see FIG. 5) (S5). Since the left stove burner 5 is set to restrict ignition (S5: NO), the CPU 71 turns off the igniter 69 (S9) and turns off the power supply to the safety valve 67 (S10). As a result, gas supply to the left stove burner 5 is cut off before ignition of the left stove burner 5 is completed, so ignition of the left stove burner 5 is restricted.

Further, the CPU 71 outputs a voice message from the speaker 25 to the effect that ignition is not possible due to a drop in battery voltage (S11). For example, it is preferable to output a sound such as "Cannot ignite due to low battery voltage. Please replace the battery immediately." As a result, even if the user does not notice the lighting of the battery replacement sign 53, the user feels inconvenient that the left stove burner 5 to be used cannot be ignited, so that the user becomes more aware of battery replacement. be able to. In addition, since the fact that ignition is restricted due to a drop in battery voltage can be notified by voice, the user can accurately know the reason why the left stove burner 5 could not be ignited. Thus, the CPU 71 terminates this process.

(3) Battery voltage at right stove burner 4 ignition is less than 2.2 V When the battery voltage is less than 2.2 V when the operation button 12 is pressed (S3: NO), the CPU 71 The battery replacement sign 53 is turned on (S4) to prompt the user to replace the battery. Further, the CPU 71 determines whether or not there is an ignition restriction for the right stove burner 4 to be ignited based on the ignition restriction table 741 (S5). Since the right stove burner 4 is set to have no ignition limit (S5: YES), the CPU 71 subsequently determines whether or not the battery voltage is 2.1 V or higher (S6).

Here, even if the battery voltage is less than 2.2 V, if it is 2.1 V or more (S6: YES), the battery 26 will not run out immediately, and at least the current cooking will be completed without problems. Therefore, the CPU 71 proceeds to S7, completes ignition of the right stove burner 4, and executes normal control (S8). As a result, the user can replace the battery after finishing the current cooking, so that the usability of the stove 1 can be improved. In addition, in this embodiment, when a drop in battery voltage is detected, only the right stove burner 4, which is a high-power burner, is set to a specific burner that can be used. Even if it is a thing, it can be handled by adjusting the heat with a high-power burner. As a result, even if the battery voltage drops, it is possible to heat and cook for the time being until the battery is replaced, thereby improving usability.

As in (2) above, if the battery voltage at the time of ignition of the left stove burner 5 is less than 2.2 V, the left stove burner 5 cannot be used. By substituting, you can cook. Since the right stove burner 4 is a burner with a high heating power, it can be used for cooking with a weak heating power by adjusting the heating power. However, since the burner that can be used until the battery is replaced is only the right stove burner 4, the stove 1 can force the user to be more inconvenient than when it is normal. Therefore, the stove 1 can make the user more aware of battery replacement.

On the other hand, if the battery voltage is less than 2.1 V (S6: NO), even if the right stove burner 4 is ignited, the battery 26 will run out completely during cooking, and the stove 1 will not work at all. Therefore, the CPU 71 turns off the igniter 69 (S9) and energizes the safety valve 67 (S10). As a result, gas supply to the right stove burner 4 is cut off before ignition of the right stove burner 4 is completed, so ignition of the right stove burner 4 is restricted.

Further, the CPU 71 outputs a voice message from the speaker 25 to the effect that ignition is not possible due to a drop in battery voltage (S11). For example, it is preferable to output a sound such as "Cannot ignite due to low battery voltage. Please replace the battery immediately." This allows the user to recognize that the ignition of the right stove burner 4 has been restricted due to the drop in battery voltage. Thus, the CPU 71 terminates this process.

As described above, the stove 1 of the first embodiment is driven using the battery 26 as a power source. A voltage measuring unit 27 of the stove 1 detects the battery voltage of the battery 26 . The CPU 71 of the stove 1 limits usable burners among the right stove burner 4, the left stove burner 5, and the grill burner to specific burners according to the battery voltage detected by the voltage measuring unit 27. FIG. As a result, the user can feel that the stove 1 is more inconvenient than when it is normal, so that the awareness of replacing the battery 26 can be strengthened. Furthermore, by leaving usable burners, it is possible to perform minimum cooking. Therefore, this embodiment can provide the stove 1 with good usability.

In the above embodiment, when the battery voltage becomes less than the threshold value, the battery replacement sign 53 is turned on to inform the user that it is time to replace the battery. In conjunction with this, the CPU 71 limits the burners that can be used to specific burners, so that the user can be more conscious of battery replacement.

In the above embodiment, when the battery voltage becomes less than the threshold, the burners that can be used are limited to only the right stove burner 4, which is a high power burner. Since the right stove burner 4 has a larger maximum heating power than the left stove burner 5, even if the use of the left stove burner 5 is restricted, the heating power of the right stove burner 4 can be adjusted.

In the above-described embodiment, when the battery voltage drops and usable burners are limited, even if the user presses the operation button to accept burner ignition, the accepted burner ignition is limited. In this case, the CPU 71 notifies by voice that the use of that burner is restricted. As a result, the user can be made to strongly recognize that the use of the burner is restricted due to the low battery voltage.

In the above description, the voltage measuring section 27 is an example of the "remaining amount detecting means" of the present invention. The CPU 71 that executes the processes of S3 to S5, S9, and S10 in FIG. 6 is an example of the "part limiting means" of the present invention. CPU71 which performs the process of S3, S6 is an example of the "judgment means" of this invention. CPU71 which performs the process of S4 is an example of the "notification means" of this invention. The right stove burner 4 is an example of the "first stove burner" of the present invention, and the left stove burner 5 is an example of the "second stove burner" of the present invention. The operation buttons 11 to 13 are examples of the "receiving means" of the present invention. The CPU 71 that executes the process of S11 is an example of the "usage restriction notification means" of the present invention.

A second embodiment of the present invention will be described with reference to FIGS. As described above, in the stove 1 of the first embodiment, when a drop in the battery voltage of the battery 26 is detected, the burners that can be used are limited to a specific burner, thereby making the user more inconvenient than normal. It can make you feel and strengthen your awareness of battery replacement. On the other hand, in the stove 1 of the second embodiment, when a drop in the battery voltage of the battery 26 is detected, by limiting the functions that can be executed during burner combustion to a specific function, the user is instructed to It makes the user feel inconvenient and strongly recognizes the need to replace the battery. Here, the “functions” that can be executed during burner combustion mean the various functions that can be set by the various switches provided on the operation panel sections 21 and 22 .

Since the configuration of the stove 1 of the second embodiment is substantially the same as the configuration of the stove 1 of the first embodiment, the same reference numerals as in the first embodiment will be used for common parts in the following description. In addition, descriptions of common parts will be omitted or simplified, and different parts will be mainly described.

The stove 1 of the second embodiment stores a function limit table 742 shown in FIG. 7 in the flash memory 74 instead of the ignition limit table 741 shown in FIG. The function restriction table 742 indicates whether or not there are functional restrictions on the stove timer selection switch 32, the "-" switch 34, the "+" switch 35, the high temperature frying switch 41, the kettle switch 42, the temperature selection switch 44, and the rice cooking switch 51. Set each. The stove timer selection switch 32, the "-" switch 34, and the "+" switch 35 are function switches for setting timer functions (stove timer, grill timer). The high-temperature frying switch 41 is a function switch for setting the high-temperature frying function. The kettle switch 42 is a function switch for setting the kettle function. A temperature selection switch 44 is a function switch for setting a temperature keeping function. The rice cooking switch 51 is a function switch for setting the rice cooking function. Note that the temperature keeping function is an example of the "temperature adjusting function" of the present invention.

In this embodiment, for example, the stove timer selection switch 32, the "-" switch 34, the "+" switch 35, and the temperature selection switch 44 have no functional restrictions, and the high temperature frying switch 41, the water boiling switch 42, and the rice cooking switch 51 function is set to restricted. That is, when the battery voltage drops, the functions that are restricted are the high-temperature frying function, the water boiling function, and the rice cooking function, and the specific functions that are not restricted are the timer function and the temperature keeping function.

Note that the presence or absence of function restrictions is not limited to the settings in the function restriction table 742 shown in FIG. As for functionality, it is preferable not to limit it.

The combustion control process will be described with reference to FIG. When the user presses one of the operation buttons 11 to 13 to turn on the corresponding substrate switch 18, the CPU 71 reads out the combustion control program from the ROM 72 and executes this processing. S21 and S22 are the same as the processing of S1 and S2 in FIG. For example, when the operation button 12 is pressed, the CPU 71 turns on the corresponding igniter 69 (S22) to ignite the right stove burner 4 (S23). The CPU 71 starts normal control of the right stove burner 4 (S24).

The CPU 71 measures the battery voltage with the voltage measurement unit 27 and determines whether the measured battery voltage is 2.2 V or higher (S25). If the battery voltage is 2.2 V or more (S25: YES), the battery voltage is sufficient, so the CPU 71 advances the process to S27. On the other hand, if the battery voltage is less than 2.2 V (S25: NO), the CPU 71 turns on the battery replacement sign 53 (S26), urges the user to replace the battery, and then advances the process to S27.

During normal control of the right stove burner 4, the CPU 71 determines whether or not any function switch has been pressed (S27). If none of the function switches is pressed (S27: NO), the CPU 71 determines whether or not the right stove burner 4, which is currently burning, has been extinguished (S35). If the fire has been extinguished (S35: YES), the CPU 71 cuts off the energization of the corresponding safety valve 67, and terminates this process. If the fire has not been extinguished yet (S35: NO), the CPU 71 returns to S25 and repeats the process.

-When the high-temperature frying switch 41 is pressed-
For example, when the user presses the high-temperature frying switch 41 to set the high-temperature frying function during normal control of the right stove burner 4 (S27: YES), the CPU 71 determines whether the battery voltage is 2.2 V or higher. (S28). Here, if the battery voltage is 2.2 V or more (S28: YES), the battery voltage is sufficient, so the high temperature frying function is executed (S32).

On the other hand, if the battery voltage is less than 2.2 V (S28: NO), the CPU 71 turns on the battery replacement sign 53 (S29) and determines whether the high-temperature frying function corresponding to the high-temperature frying switch 41 has functional limitations. (S30). Referring to the function restriction table 742 (see FIG. 7), the function restriction is set for the high-temperature frying function. Therefore, the CPU 71 does not execute the high-temperature stir-frying function, and issues a voice message to the effect that the function cannot be executed due to the drop in battery voltage (S33).

In this case, for example, it is preferable to output a voice from the speaker 25 such as "The high-temperature frying function cannot be executed due to a drop in battery voltage. Please replace the battery immediately." As a result, even if the user does not notice the lighting of the battery replacement sign 53, the user feels inconvenient that the high-temperature frying function cannot be used, so that the user's awareness of battery replacement can be strengthened. In addition, since the fact that the function has been restricted due to a drop in battery voltage can be notified by voice, the user can accurately know the reason why the high-temperature frying function could not be performed.

-When the stove timer selection switch 32 is pressed-
For example, when the user presses the stove timer selection switch 32 to set the stove timer during normal control of the right stove burner 4 (S27: YES), the CPU 71 determines whether the battery voltage is 2.2 V or higher. (S28). Here, if the battery voltage is less than 2.2 V (S28: NO), the CPU 71 turns on the battery replacement sign 53 (S29) and determines whether the timer function corresponding to the stove timer selection switch 32 is restricted. It is determined whether or not (S30). Referring to the function restriction table 742, no function restriction is set for the timer function. Therefore, the CPU 71 determines whether or not the battery voltage is 2.1 V or higher in order to confirm whether or not there is no problem even if the stove timer is activated in the current cooking (S31).

If the battery voltage is equal to or higher than 2.1 V (S31: YES), there is no problem in executing the stove timer in this cooking, so the CPU 71 selects the right stove burner 4 by pressing the stove timer selection switch 32. , the stove timer is executed (S34). As a result, the user can replace the battery after finishing the current cooking, so that the usability of the stove 1 can be improved.

On the other hand, if the battery voltage is less than 2.1 V (S31: NO), there is a possibility that the battery voltage will be completely cut off if the stove timer is activated during cooking this time, even if there are no functional restrictions. Therefore, the CPU 71 does not set the timer function, but issues a voice message to the effect that the function cannot be executed due to the drop in battery voltage (S33). In this case, for example, it is preferable to output a voice such as "Timer function cannot be executed due to low battery voltage. Please replace the battery immediately." As a result, even if the user does not notice the lighting of the battery replacement sign 53, the user feels inconvenient that the timer function cannot be used, so that the awareness of battery replacement can be strengthened.

Then, during normal control or function execution, the CPU 71 determines whether or not the operation button 13 has been pressed again to extinguish the burning burner (S35). If the fire has not been extinguished (S35: NO), the CPU 71 returns to S25 and continues normal control or the function being executed. When the burning burner is extinguished (S35: YES), the substrate switch 18 is turned off, so the CPU 71 turns off the power supply to the safety valve 67 (S36). As a result, the safety valve 67 is also closed, so the CPU 71 terminates this process. Note that when the timer function is executed, the corresponding burner is extinguished at the set timer time, so this process is forcibly terminated. Also when the rice cooking function is executed, the burner is extinguished after boiling, so this process is forcibly terminated.

As described above, the stove 1 of the second embodiment is also driven using the battery 26 as a power source, as in the first embodiment. The CPU 71 of the stove 1 limits the functions executable by the burner during combustion to specific functions according to the battery voltage detected by the voltage measuring section 27 . As a result, the user can feel that the stove 1 is more inconvenient than when it is normal, so that the awareness of replacing the battery 26 can be strengthened. Furthermore, by leaving usable functions, it is possible to perform minimal cooking. Therefore, this embodiment can provide the stove 1 with good usability.

In the above embodiment, among the functions that can be performed by the burner during combustion, a temperature keeping function is included. The temperature keeping function is a function that can adjust the temperature of the food to be cooked to a set temperature. The temperature keeping function is a function used for cooking with oil, etc., and is a function that can improve safety. Therefore, even if the battery voltage drops during burner combustion, the temperature keeping function is not restricted. Thereby, 2nd embodiment can ensure the safety of the stove 1. FIG.

The present invention is not limited to the above embodiments, and various modifications are possible.

(Modified example common to the first and second embodiments)
The stove 1 of the first and second embodiments has a right stove burner 4 and a left stove burner 5, but the number of stove burners on the top plate 3 may be one, or three or more. The stove 1 is a table stove, but it may be a built-in stove or a small gas stove with a cassette type gas supply. It may also be a stove without a grill.

In the first and second embodiments, the right stove burner 4 is a high power burner and the left stove burner 5 is a standard burner, but the right stove burner 4 may be a standard burner and the left stove burner 5 may be a high power burner. Also, both the right stove burner 4 and the left stove burner 5 may be high power burners or standard burners.

Although the battery voltage threshold is 2.2V, it may be changed to a value other than this. Further, the determination process of S6 in FIG. 6 of the first embodiment and the determination process of S31 in FIG. 8 of the second embodiment may be omitted. At this time, for example, in the determination processes of S3 and S14 in FIG. 6 and the determination processes of S25 and S28 in FIG. 8, it may be determined whether the battery voltage is 2.1 V or higher.

The notification process of S11 in FIG. 6 of the first embodiment and the notification process of S33 in FIG. 8 of the second embodiment may be omitted. Also, the voice message output from the speaker 25 in these notification processes may be a message other than the above-described embodiment. For example, a buzzer, an alarm, or the like may be output instead of voice.

The stove 1 of the first embodiment limits the burners that can be ignited when a drop in battery voltage is detected, and the stove 1 of the second embodiment limits executable functions when a drop in battery voltage is detected. However, for example, the control contents of the first embodiment and the control contents of the second embodiment may be combined.

(Modification of first embodiment)
In the first embodiment, when the battery voltage drops, the burners that can be ignited are limited to only the right stove burner 4, which is a high power burner. good. In this case, the left stove burner 5, which has a smaller maximum heating power than the high heating power burner, must be used, so that the user can be made to feel more inconvenient than in the normal state.

1 stove 4 right stove burner 5 left stove burner 11 to 13 operation button 26 battery 27 voltage measurement unit 32 stove timer selection switch 34 "-" switch 35 "+" switch 41 high temperature frying switch 42 kettle switch 44 temperature selection switch 51 rice cooking switch 53 Battery replacement sign 71 CPU

Claims (9)

A gas stove driven by a battery as a power source and comprising a plurality of burners and an igniter provided corresponding to the plurality of burners ,
a remaining amount detection means for detecting the remaining amount of the battery;
burner limiting means for limiting usable burners to a specific burner among the plurality of burners according to the remaining amount detected by the remaining amount detecting means;
The burner limiting means is
When the specific burner is ignited, the igniter is allowed to be energized, and when a burner other than the specific burner among the plurality of burners is ignited, the igniter is not energized. A gas stove characterized by shutting off power supply to a safety valve provided in a gas supply pipe for supplying gas to said other burner. Determination means for determining whether the remaining amount detected by the remaining amount detection means is less than a threshold;
a notification means for notifying that it is time to replace the battery when the determination means determines that the remaining amount is less than the threshold;
2. The method according to claim 1, wherein said burner limiting means limits ignition of said other burner in conjunction with notification by said notification means when said determination means determines that said remaining amount is less than said threshold value. Gas stove as described. The plurality of burners are
a first stove burner;
a second stove burner having a smaller maximum firepower than the first stove burner,
3. The gas stove according to claim 1, wherein said burner limiting means sets said first stove burner to said specific burner. The plurality of burners are
a first stove burner;
a second stove burner having a smaller maximum firepower than the first stove burner,
3. The gas stove according to claim 1, wherein said burner limiting means sets said second stove burner to said specific burner. receiving means for receiving operation of the burner;
use restriction notification means for notifying that use of the burner is restricted when the operation of the burner received by the reception means is restricted by the burner restriction means; Item 5. The gas stove according to any one of Items 1 to 4. A gas stove driven by a battery as a power source and having two or more functions executable during combustion of a burner and related to combustion control of the burner,
a remaining amount detection means for detecting the remaining amount of the battery;
A gas stove, comprising: function limiting means for limiting an executable function to a specific function among the two or more functions according to the remaining amount detected by the remaining amount detecting means. Determination means for determining whether the remaining amount detected by the remaining amount detection means is less than a threshold;
a notification means for notifying that it is time to replace the battery when the determination means determines that the remaining amount is less than the threshold;
7. The gas stove according to claim 6, wherein said function limiting means limits said function in conjunction with notification by said reporting means when said determining means determines that said remaining amount is less than said threshold value. receiving means for receiving operation of the function;
operation determination means for determining whether the operation of the function received by the reception means is the operation of the function restricted by the function restriction means;
When the operation determining means determines that the operation of the function accepted by the accepting means is the operation of the function restricted by the function restricting means, the function accepted by the accepting means cannot be used. 8. The gas stove according to claim 6 or 7, further comprising unusable informing means for informing that the use is restricted. The function includes a temperature control function that can adjust the temperature of the food to be cooked to a set temperature,
9. The gas stove according to claim 6, wherein said function limiting means does not limit said temperature control function.

Images