JP5868922B2 - Gas stove - Google Patents

Description

  The present invention relates to a gas stove provided with a function of limiting the heating power of a burner when a cooking container such as a pan or a frying pan is not placed at a predetermined heating position.

  When a cooking container such as a pan or a frying pan is in a state without a pan that is not placed at a predetermined heating position above the burner, in a conventional gas stove with a thermal power limiting function that limits the thermal power of the burner to a predetermined value or less, Thermal power restriction when a predetermined release instruction is given, such as when a pan shake that removes or returns the cooking container from the heating position in a short time is detected, or when the operation part cancels the thermal power restriction function After the function is released and the heating power restriction function is released, the one that is configured so that the heating power restriction function is restored again if a certain time elapses with the cooking container removed from the heating position is known. (For example, refer to Patent Documents 1 and 2).

JP 2006-125675 A JP 2006-138571 A

  However, in the above-described conventional gas stove, for example, in a state where the cooking container is in the heating position after the end of the pot shake, the heating power restriction function is released, so that the cooking container is in the heating position when continuously used. Even if it is removed from the above, the thermal power limit function does not work until a certain time has passed, and there is a safety concern. In addition, it is not convenient for the user to manually return the thermal power limiting function manually during cooking.

  The present invention has been made in view of the above problems, and an object thereof is to improve safety and usability in a gas stove equipped with a burner thermal power limiting function.

The present invention, whether crab and the burner for heating the placed adjusted hairdressing device at a predetermined heating position of stove body, a thermal adjustment unit for adjusting the heating power of the burner, the cooking vessel to the heating position is placed A pan detection sensor that is turned on and off in response, a thermal power limiting function execution unit that adjusts the heating power of the burner to a preset limiting thermal power when the cooking container is not placed in the heating position, and a predetermined release instruction In this case, the gas stove includes a release function unit for releasing the thermal power limiting function, and when the burner is ignited, the thermal power limiting function is set, and in the state where the thermal power limiting function is set, the cancellation instruction is made. which point thermal limiting function is released, in a state in which thermal power limiting function is canceled, the cooking vessel and continue to control to return the thermal limiting function when it is determined to be placed constructed heating position Those were.

In this case, since the thermal power limiting function is set when the burner is ignited, even if the cooking container is removed from the heating position immediately after the burner is ignited, the thermal power of the burner is quickly Is limited. On the other hand, when a predetermined release instruction is made in a state where the thermal power limiting function is set, the thermal power limiting function is canceled at that time, and in this state, the cooking container is temporarily removed from the heating position. However, the fire power limit function does not work and the fire power of the burner is not limited. Further, even when the heating power limiting function is released, the heating power limiting function is automatically restored when the cooking container is continuously placed at the heating position . Therefore , after that, when the cooking container is removed from the heating position, the heating power of the burner is quickly limited by the action of the heating power limiting function. In addition, there is no need to manually return the thermal power limiting function during cooking.

  Further, according to the present invention, in the gas stove having the above-described configuration, the cooking container is continuously placed at the heating position if the number of on / off of the pan detection sensor within a predetermined time is less than the reference number.

  In this case, if the number of on / off of the pan detection sensor within a predetermined time is less than the reference number, the cooking container is continuously placed in the heating position. Even if the pot is shaken, the fire power limiting function can be surely restored when the pot is no longer shaken.

  Moreover, this invention makes it the said cancellation | release instruction | indication that the frequency | count of ON / OFF of the pan detection sensor within the predetermined time became more than reference | standard frequency in the gas stove of the said structure.

  In this case, if the number of times the pan detection sensor is turned on and off within the predetermined time exceeds the reference number, the thermal power limit function is automatically released, so even if the pan is shaken during cooking, There is no need to manually cancel the thermal power limit function every time.

  As described above, according to the present invention, even if the thermal power limiting function is released, the thermal power limiting function is automatically restored when the cooking container is continuously placed in the heating position. Improves sex and usability.

FIG. 1 is a schematic configuration diagram of a gas stove according to the first embodiment of the present invention. FIG. 2 is a time chart showing the relationship between the on / off state of the pan detection sensor of the gas stove according to the first embodiment of the present invention and the thermal power control of the burner. FIG. 3 is a time chart showing the relationship between the on / off state of the pan detection sensor of the gas stove and the burner thermal power control according to the second embodiment of the present invention. FIG. 4 is a schematic configuration diagram of a gas stove according to the third embodiment of the present invention. FIG. 5: is a time chart which shows the relationship between the ON / OFF state of the pan detection sensor of the gas stove which concerns on the 3rd Embodiment of this invention, and the thermal power control of a burner.

Next, embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings.
As shown in FIG. 1, the gas stove 1 (A) according to the first embodiment of the present invention has a plurality of or single external flame burners 2 disposed on the top surface portion 11 of the stove body 10. The top surface 11 is provided with a burner opening 110 that allows the burner body 21 of the burner 2 to face upward. Furthermore, the virtues 12 for supporting the cooking container P such as a pan or a frying pan are placed on the upper peripheral edge of the burner opening 110, and the burner 2 is a cooking container P placed on the virtues 12. Is configured to be heated from below. That is, the upper part of the virtues 12 is the heating position of the cooking container P.

  A point fire extinguishing operation unit 14 for igniting and extinguishing the burner 2 is disposed on the front portion 13 of the stove body 10. The point fire extinguishing operation unit 14 is turned on in response to an ignition operation (here, a push operation) of the point fire extinguishing operation unit 14 and turned off in response to a fire extinguishing operation (here, a push operation). Is incorporated. The point fire extinguishing operation unit 14 also has an operation function for manually setting the heating power of the burner 2 arbitrarily.

  Inside the stove body 10, a valve unit 15 is incorporated as a thermal power adjustment unit that adjusts the amount of gas supplied to the burner 2 according to the ignition operation, the fire extinguishing operation, and the thermal power setting operation of the point fire extinguishing operation unit 14. . Further, on the downstream side of the valve unit 15, a gas ejection nozzle 17 that ejects the gas supplied from the gas pipe 16 to the valve unit 15 toward the mixing pipe 22 of the burner 2 is provided.

  The valve unit 15 opens when the fire extinguishing switch 140 is turned on by an ignition operation, and closes when the flame detection sensor 32 detects no combustion flame, and closes when the fire extinguishing switch 140 is turned on by the ignition operation. From the main valve 152 that opens and closes when the point-extinguishing switch 140 is turned off by the extinguishing operation, the needle valve 153 whose opening is adjusted in accordance with the set thermal power of the point-extinguishing operation unit 14, and the execution unit of the thermal power limiting function described later The flow rate adjustment valve 154 whose opening degree is adjusted in accordance with the instruction of, and the amount of gas jetted into the mixing tube 22 is appropriately adjusted by these valves 151, 152, 153, and 154.

  On the outer peripheral surface of the burner body 21, a venturi-shaped mixing tube 22 extends substantially horizontally in the internal space of the stove body 10. A burner head 23 having a plurality of flame holes 230 on the outer periphery is provided on the upper portion of the burner body 21. Furthermore, a cover member 24 that covers the upper surface of the burner head 23 from above is provided on the upper portion of the burner head 23.

  The mixing tube 22 is connected to the flame hole 230 via the gas flow passage 210 inside the burner body 21. Accordingly, the gas ejected from the gas ejection nozzle 17 into the mixing tube 22 is mixed with the air inside the stove body 10 and guided to the gas flow path 210 and discharged from the flame hole 230 to the outer periphery of the burner head 23. The

  In the vicinity of the outer periphery of the burner body 21, a spark plug 31 that makes a spark discharge near the outside of the flame hole 230 when a predetermined voltage is applied, and a flame detection that detects the presence or absence of a gas combustion flame near the outside of the flame hole 230. A sensor 32 is provided. In addition, a pot bottom temperature sensor 33 for detecting the temperature of the bottom surface of the cooking container P placed on the upper part of the virtues 12 is erected at the inner central portion of the burner body 21.

  The pan bottom temperature sensor 33 is a thermistor 330 that detects the temperature of the cooking container P, an upper end closed cylindrical head portion 331 that covers the thermistor 330, and an upright fixed inside the stove body 10, and the head portion 331 is connected to the upper end. The support pipe 332 and the spring member 333 interposed between the head portion 331 and the upper end of the support pipe 332. 331 is configured to protrude upward from the upper end surface of the virtues 12.

  The head portion 331 is connected to the support pipe 332 so as to be vertically slidable. When the cooking container P is placed on the upper part of the virtues 12, the heat collecting plate 334 at the upper end is connected to the cooking container. It is pressed against the center of the bottom surface of P and pressed down against the elastic force of the spring member 333. The thermistor 330 is fixed to the back surface of the heat collecting plate 334 inside the head portion 331, and is configured to detect the temperature of the cooking container P transmitted through the heat collecting plate 334.

  In the internal space of the support pipe 332, a magnet 34 that slides up and down in the support pipe 332 in conjunction with the vertical movement of the head portion 331 is provided. In addition, a reed switch 35 is provided on the outer peripheral surface of the support pipe 332 as a pan detection sensor that is turned on when the magnet 34 is lowered to a predetermined position and turned off when the magnet 34 is separated upward from the predetermined position. Therefore, when the cooking container P is placed on the upper part of the virtues 12, the head portion 331 of the pan bottom temperature sensor 33 is pushed down, and accordingly the magnet 34 is also lowered to a predetermined position. As a result, the reed switch 35 is turned on. On the other hand, when the cooking container P is lifted from the virtues 12, the head portion 331 of the pan bottom temperature sensor 33 is pushed up by the elastic force of the spring member 333, and accordingly, the magnet 34 also moves away from the predetermined position upward. As a result, the reed switch 35 is turned off.

  The point extinguishing switch 140, the electromagnetic on-off valve 151, the main valve 152, the flow rate adjustment valve 154, the ignition plug 31, the flame detection sensor 32, the thermistor 330, and the reed switch 35 are added to the control circuit 40 incorporated in the stove body 10. Connected through electrical wiring.

  The control circuit 40 ignites the burner 2 according to the ignition operation of the point fire extinguishing operation unit 14, and extinguishes the burner 2 according to the fire extinguishing operation. The detection temperature of the flame detection sensor 32 is equal to or lower than the misfire determination reference temperature. Or, when the temperature detected by the pan bottom temperature sensor 33 is equal to or higher than the overheat determination reference temperature, a circuit configuration such as a safety processing execution unit that forcibly stops the gas supply to the burner 2 is provided.

  Further, the control circuit 40 is in a “no pan” state where the cooking container P is placed on the upper part of the virtues 12 based on the on / off state of the reed switch 35 or “no pan” is placed. A pan detection unit for determining whether the state is in a state, an execution unit for a thermal power limiting function that adjusts the thermal power of the burner 2 to a preset thermal power limit when the reed switch 35 is OFF, an instruction to cancel or return the thermal power limiting function A timer for measuring the elapsed time when determining the number of times, a counting unit for counting the number of times the reed switch 35 is turned off from the on-time within a predetermined time (on-off frequency), and a thermal power limiting function if the on-off frequency is greater than or equal to the reference frequency If it is determined that the state is the “pan shake” state corresponding to the release instruction, and if the OFF time or ON time of the reed switch 35 continues for the reference time, it corresponds to the return instruction of the thermal power limiting function A placement state determination unit that determines that the state is “no swing”, a release processing execution unit that cancels the thermal power limiting function when it is determined that the pan swing state is determined, and is determined that there is no pan swing state In such a case, a circuit configuration such as a return processing execution unit for returning the thermal power limiting function is provided.

  Next, the heating power control operation of the burner 2 by the control circuit 40 will be described. First, when an ignition operation is performed at the point fire extinguishing operation unit 14, the opening degree of the needle valve 153 is adjusted to a predetermined ignition opening degree, and spark discharge is performed between the ignition electrode 31 and the burner head 23, Further, the electromagnetic on-off valve 151 and the main valve 152 are opened. As a result, a mixed gas having a concentration suitable for ignition is released from the flame hole 230 and ignited by the spark discharge. Thereby, the burner 2 is ignited.

  In addition, after the burner 2 is ignited, when the heating power adjustment operation is performed in the point fire extinguishing operation unit 14, the opening degree of the needle valve 153 is changed according to the operation position, and the heating power of the burner 2 is adjusted. The When the fire extinguishing operation is performed at the point fire extinguishing operation unit 14, the main valve 152 is closed and the supply of gas to the burner 2 is stopped. Thereby, the burner 2 is extinguished.

  When the burner 2 is ignited, whether or not the reed switch 35 is off (no pan) and the number of times the reed switch 35 is turned on / off within a predetermined time T1 (for example, 6 seconds) are set to the reference number (for example, 2 times). ) It is monitored whether or not it is the above, that is, whether or not it is in the “pan shake” state. Before it is determined that the pan is shaken, the thermal power limiting function is activated. When the reed switch 35 is turned off, the flow rate adjusting valve 154 is closed to a predetermined small opening, and the thermal power of the burner 2 is limited. Adjust to firepower ("low heat" here). Thereafter, when the reed switch 35 is turned on again, the flow rate adjusting valve 154 is opened to a predetermined large opening, and the heating power of the burner 2 is arbitrarily set by the point-extinguishing operation unit 14 (here, “high fire”). (Refer to ST1 in FIG. 2).

  When the burner 2 is ignited, it is determined whether or not the detected temperature of the flame detection sensor 32 is equal to or lower than the misfire determination reference temperature, and whether or not the detected temperature of the pan bottom temperature sensor 33 is equal to or higher than the overheat determination reference temperature. Monitoring is also performed. When the detection temperature of the flame detection sensor 32 becomes equal to or lower than the misfire determination reference temperature or the detection temperature of the pan bottom temperature sensor 33 becomes equal to or higher than the overheat determination reference temperature, the electromagnetic on-off valve 151 is closed and the gas to the burner 2 is closed. Is forcibly stopped.

  After the burner 2 is ignited, if the number of on / off times of the reed switch 35 exceeds the reference number within a predetermined time T1, it is determined that the pan is shaken, and the thermal power limiting function is canceled. When the thermal power limiting function is released, whether or not the reed switch 35 has an off time T2 continues for a reference time Ts (for example, 10 seconds), and the reed switch 35 has an on time T3 that is a reference time Ts (for example, 10 seconds), it is monitored whether or not it is in a state of “no panning”. Meanwhile, when the off-time T2 is less than the reference time Ts or when the on-time T3 is less than the reference time Ts, the cooking container P is lifted from the virtues 12 and is assumed to be in a pan-like state. The thermal power of the burner 2 is maintained at the thermal power set by the point-extinguishing operation unit 14 (see ST2 in FIG. 2).

  On the other hand, when the on-time T3 of the reed switch 35 continues for the reference time Ts in the state where the thermal power limiting function is released, the “no pot shake” in which the cooking container P is continuously placed on the upper part of the virtues 12. Assuming that the fire power limit function is restored. Accordingly, when the cooking container P is lifted from the virtues 12 in this state, the heating power of the burner 2 is quickly adjusted to the limiting heating power by the action of the heating power limiting function (see ST3 in FIG. 2).

  Although not shown, when the off time T2 of the reed switch 35 continues for the reference time Ts in the state in which the thermal power limiting function is released, the cooking container P is continuously removed from the virtues 12 In this case as well, the thermal power limiting function is restored. Therefore, if the cooking container P is not placed on the upper part of the virtues 12 as it is, the thermal power of the burner 2 is quickly adjusted to the limited thermal power by the function of the thermal power limiting function.

Thus, according to the gas stove 1 (A) according to the first embodiment , the heating power limiting function is set when the burner 2 is ignited, so that the cooking container P is immediately after the burner 2 is ignited. Even if it is removed from the upper part of the virtues 12, the thermal power of the burner 2 is quickly limited by the function of the thermal power limiting function. Therefore, safety is high. On the other hand, even if the pan is shaken during cooking, if it is determined that the pan is being shaken, the thermal power limit function is automatically canceled. There is no need for manual release. Therefore, it is easy to use.

  Moreover, in the gas stove 1 (A) according to the first embodiment, even when the heating power restriction function is released, when the cooking container P is continuously placed on the upper part of the virtues 12, Since the thermal power limiting function is automatically restored, the thermal power of the burner 2 can be quickly limited by the action of the thermal power limiting function when the cooking container P is removed from the virtues 12 thereafter. In addition, there is no need to manually return the thermal power limiting function during cooking. Therefore, it is highly safe and easy to use.

  The gas stove according to the second embodiment of the present invention has the same configuration as the gas stove 1 (A) shown in FIG. 1 except for the control circuit 40, and the number of times the reed switch 35 is turned on and off within a predetermined time. If the number is less than the reference number, it is assumed that the cooking container P is continuously placed on the upper part of the virtues 12 and the thermal power limiting function is restored.

  More specifically, the control unit 40 is in a “pan shake” state corresponding to a release instruction of the heating power limiting function if the number of times the on / off of the reed switch 35 is equal to or greater than the reference number, instead of the above-described placement state determination unit. On the other hand, if the number of times the on / off of the reed switch 35 is less than the reference number, there is a mounting state determination unit that determines that the state is “no panning” corresponding to the return instruction of the heating power limiting function.

  In this case, when the burner 2 is ignited, whether or not the reed switch 35 is off, and the number of on / off times of the reed switch 35 within the predetermined time T1 is equal to or greater than the reference number, as in the first embodiment. It is monitored whether or not it is in a certain “pan shake” state. If the number of times the on / off of the reed switch 35 is equal to or greater than the reference number within the predetermined time T1, it is determined that the pan is shaken, and the heating power limiting function is canceled (see ST1 in FIG. 3).

  When the thermal power limiting function is canceled, whether or not the reed switch 35 is turned on and off within a predetermined time T4 (for example, 10 seconds) is less than a reference number (for example, 2 times), that is, “no panning”. Monitor whether it is in a state. Meanwhile, when the number of on / off times is equal to or more than the reference number, even if the cooking container P is lifted from the virtues 12, the heating power of the burner 2 is maintained at the heating power set by the point-extinguishing operation unit 14 (ST2 in FIG. 3). reference).

  On the other hand, in the state where the thermal power restriction function is released, when the above-mentioned number of on / off is less than the reference number, the cooking container P is continuously placed on the upper part of the virtues 12 in the state of “no panning”. If there is, return the fire power limit function. Accordingly, when the cooking container P is lifted from the virtues 12 in this state, the heating power of the burner 2 is quickly adjusted to the limiting heating power by the action of the heating power limiting function (see ST3 in FIG. 3).

Thus, according to the gas stove according to the second embodiment , the heating power limiting function is set when the burner 2 is ignited, so that the cooking container P is placed from the upper part of the virtues 12 immediately after the burner 2 is ignited. Even if it is removed, the thermal power of the burner 2 is quickly limited by the function of the thermal power limiting function. On the other hand, even if the pan is shaken during cooking, if it is determined that the pan is shaken, the thermal power limiting function is automatically canceled. Further, even when the heating power limiting function of the burner 2 is released, when the cooking container P is continuously placed on the upper part of the virtues 12, the heating power limiting function is automatically restored. Therefore, as in the first embodiment, the safety is high and the usability is good.

  Furthermore, in this case, if the number of times the reed switch 35 is turned on and off within the predetermined time T4 is less than the reference number, the cooking container P is continuously placed on the upper part of the virtues 12, Even if the pan is shaken in a state where is released, the thermal power limiting function can be reliably restored at the stage where the pan is no longer shaken. Therefore, safety is higher.

  As shown in FIG. 4, the gas stove 1 (B) according to the third embodiment of the present invention further includes a release operation portion 18 for manually releasing the thermal power limiting function on the front surface portion 13 of the stove body 10. When the release operation unit 18 performs a release operation after the burner 2 is ignited, the thermal power limiting function is released.

  Specifically, the release operation unit 18 is connected to the control circuit 40 through electrical wiring. Further, the control circuit 40 determines that an instruction to cancel the thermal power limiting function is given when a release operation (for example, a push operation) of the release operation unit 18 is performed, while a return operation (for example, a push operation) of the release operation unit 18 When the operation is performed, a release operation determination unit that determines that a return instruction for the thermal power limiting function has been issued is provided. Furthermore, instead of the above-described placement state determination unit and the return processing execution unit, the control circuit 40, if the number of times the on / off of the reed switch 35 is less than the reference number, is “no panning” corresponding to the return instruction of the heating power limiting function. A mounting state determination unit that determines that the state is in the state of the above, and a return process that returns the thermal power limiting function when it is determined that the pan is not shaken or when the release operation unit 18 performs a release operation. Has a part.

  In this case, when the burner 2 is ignited, whether or not the reed switch 35 is turned off, or whether or not the reed switch 35 is turned on or off within a predetermined time T1 is in a “pan-swing” state. And monitoring whether or not the release operation unit 18 has performed a release operation. And when cancellation | release operation is performed in the cancellation | release operation part 18 before determining with it being the state of a pan swing, a thermal power restriction | limiting function is cancelled | released. When the thermal power limiting function is released, whether or not the return operation is performed by the release operation unit 18 is monitored, and the number of on / off times of the reed switch 35 within a predetermined time T5 (for example, 20 seconds) is a reference. It is monitored whether or not it is in a state of “no pot shake” that is less than the number of times (for example, 2 times). Meanwhile, when the number of on / off operations is equal to or greater than the reference number and the return operation of the release operation unit 18 is not performed, even if the cooking container P is lifted from the virtues 12, the fire power of the burner 2 is turned on. 14 is maintained (refer to ST1 in FIG. 5).

  On the other hand, in the state where the thermal power restriction function is released, when the above-mentioned number of on / off is less than the reference number, the cooking container P is continuously placed on the upper part of the virtues 12 in the state of “no panning”. If there is, return the fire power limit function. Therefore, when the cooking container P is lifted from the virtues 12 in this state, the heating power of the burner 2 is quickly adjusted to the limiting heating power by the action of the heating power limiting function (see ST2 in FIG. 5).

  In addition, when the return operation of the release operation unit 18 is performed in a state where the thermal power limiting function is released, the thermal power limiting function is similarly restored. Therefore, when the cooking container P is lifted from the virtues 12 in this state, the heating power of the burner 2 is quickly adjusted to the limiting heating power by the action of the heating power limiting function.

Thus, according to the gas stove 1 (B) according to the third embodiment , the heating power limiting function is set when the burner 2 is ignited, so that the cooking container P is immediately after the burner 2 is ignited. Even if it is removed from the upper part of the virtues 12, the thermal power of the burner 2 is quickly limited by the function of the thermal power limiting function. On the other hand, even if the heating power limiting function of the burner 2 is released, when the cooking container P is continuously placed on the upper part of the virtues 12, the heating power limiting function is automatically restored. Similar to the first and second embodiments, the safety is high and the usability is good.

  In this case, if the number of times the on / off of the reed switch 35 is less than the reference number within the predetermined time T5, the cooking container P is continuously placed on the upper part of the virtues 12, so that the second As in the embodiment, the safety is higher.

  In the third embodiment, the number of on / off operations of the reed switch 35 within the predetermined time T5 is determined as the reference number as a determination as to whether or not the cooking container P is continuously placed on the upper part of the virtues 12. As described in the first embodiment, it is assumed that the on-time T3 of the reed switch 35 is determined to be continued for the reference time Ts. Also good.

  The reed switch 35 may be configured to be turned off when the cooking container P is placed on the upper part of the virtues 12 and turned on when the cooking container P is lifted from the virtues 12. In this case, each of the above-described control operations accompanying the on / off of the reed switch 35 is configured to act in the opposite direction (when the reed switch 35 is on, the heat power of the burner 2 is adjusted to a preset limit heat power. If the OFF time of the reed switch 35 continues for the reference time, it is determined that the cooking container P is continuously placed on the upper part of the virtues 12).

1 Gas stove 10 Stove body 12 Gotoku (heating position)
15 Valve unit (thermal power adjustment part)
2 Burner 35 Reed switch (pan detection sensor)
40 Control circuit P Cooking container

Claims (3)

A burner for heating the placed adjusted hairdressing device at a predetermined heating position of stove body, turned on and off depending on whether the thermal adjustment unit for adjusting the heating power of the burner, the cooking vessel to the heating position is placed A pan detection sensor, an execution unit for a thermal power limiting function that adjusts the thermal power of the burner to a preset thermal power when the cooking container is not placed at the heating position, and the thermal power when a predetermined release instruction is given A gas stove with a release function part for releasing the restriction function,
When the burner is ignited, the thermal power limiting function is set.When the thermal power limiting function is set, the thermal power limiting function is canceled when the release instruction is given, and the thermal power limiting function is canceled. A gas stove having a control configuration in which the thermal power limiting function is restored when it is determined that the container is continuously placed in the heating position. The gas stove according to claim 1, wherein
A gas stove in which the cooking container is continuously placed at the heating position if the number of times of turning on and off the pan detection sensor within a predetermined time is less than the reference number. The gas stove according to claim 1 or 2,
A gas stove in which the release instruction is that the number of on / off operations of the pan detection sensor within a predetermined time is greater than or equal to a reference number.

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