JP6877232B2 - Cooking equipment - Google Patents

Description

The present invention relates to a cooking apparatus. In particular, the present invention relates to a cooking apparatus having a heating power suppression control that suppresses the heating power of the burner when the cooking utensil is not placed on the burner.

Conventionally, it has a cooking utensil detection means for detecting whether or not a cooking utensil such as a pan or a frying pan is placed on the burner, and when it is detected that the cooking utensil is not placed on the burner, the burner is turned on. There is known a cooking device that executes a heating power suppression control that extinguishes a fire or weakens the heating power of a burner. In addition, even if the cooking utensil is not detected on the burner by shaking the pot to operate the cooking utensil during cooking, in order to maintain the thermal power of the burner, a release switch that releases the thermal power suppression control on the front part of the stove body. (For example, Patent Document 1) has also been proposed.

However, it is complicated for the user to operate the release switch before the start of cooking or during cooking, and the workability of cooking is inferior. Therefore, it is desired to automatically release the thermal power suppression control according to cooking.

On the other hand, in order to improve safety against earthquakes, a cooking device having an acceleration detecting means for detecting the acceleration of vibration applied to the device and outputting an acceleration signal and a frequency detecting means for detecting the frequency of the acceleration signal It has been proposed (Patent Document 2). In this cooking device, the seismic vibration that requires extinguishing the burner has a lower frequency and a larger amplitude than the artificial vibration, and the amplitude of the acceleration signal detected by the acceleration detecting means and the frequency by the frequency detecting means are used. When the characteristic point determined by the relationship is in the predetermined blocking region, it is determined to be seismic vibration, and when the characteristic point is outside the predetermined blocking region, it is determined to be artificial vibration such as swinging a pot or opening / closing the grill door. Therefore, it is configured to surely extinguish the burner in the case of seismic vibration. Therefore, even in the cooking apparatus in which the thermal power suppression control is executed, it is conceivable to prevent the thermal power suppression control from being executed when the artificial vibration is detected by using the acceleration information of such vibration.

However, the artificial vibration applied to the cooking device during cooking includes not only the vibration caused by the cooking utensil colliding with the cooking device by swinging the pot, but also on the burner during or at the end of cooking. It also includes vibrations caused by the action of raising the pot to lift the cooking utensil from the cooking utensil and the action of lowering the cooking utensil to move the cooking utensil from the burner onto the top plate or the counter top. In particular, when a cooking utensil detecting means having a spring member is used, when the cooking utensil is lifted from the burner, vibration is applied to the cooking apparatus by the elastic force of the spring member. In such a case, since the cooking utensil is not placed on the burner, it is necessary to suppress the thermal power. Therefore, if it is determined whether or not to uniformly execute the thermal power suppression control based only on the discrimination between the seismic vibration and the artificial vibration as in Patent Document 2, the thermal power suppression is performed even when the thermal power suppression control is required. There is a problem that there is no.

On the other hand, in stir-fry cooking and the like, there is a case where the cooking utensil is moved back and forth or left and right while the cooking utensil is detected on the burner, and then the cooking utensil is shaken. In such a case, after the operation of shaking the pot, the heating power suppression control is once executed until the cooking utensil is lifted on the burner and artificial vibration is applied to the cooking device by the operation of shaking the pot, and the heating power is increased. There is a problem that it is suppressed. In particular, in a cooking device in which a heating power suppression control for extinguishing a burner is executed, it is necessary to perform a reignition operation, which significantly reduces the workability of cooking.

Japanese Unexamined Patent Publication No. 2006-97975 Japanese Unexamined Patent Publication No. 2015-145780

The present invention solves the above problems, and an object of the present invention is to provide a cooking apparatus having excellent cooking workability and high safety.

According to the present invention
With a burner
A cooking utensil detection means that detects the presence or absence of a cooking utensil on the burner,
Acceleration detecting means for detecting the acceleration of applied vibration,
When the cookware detecting means detects that the cookware is not placed on the burner, the cookware is provided with a control means for extinguishing the fire of the burner or performing a heat suppression control for reducing the heat of the burner.
When the acceleration information of the vibration output from the acceleration detecting means includes an artificial vibration having a predetermined high frequency or higher, the control means determines that the vibration is periodic vibration caused by the shaking of the pot or the shaking of the pot, and suppresses the thermal power. When the control is invalidated and the acceleration information of the vibration output from the acceleration detecting means includes an artificial vibration having a frequency lower than the predetermined high frequency but higher than the seismic vibration, the temporary raising or lowering of the pot occurs. Provided is a heating / cooking apparatus having a configuration in which it is determined that the vibration is normal and the thermal power suppression control is executed.

When the user moves the cooking utensil back and forth or left and right on the burner, or shakes the cooking utensil on the burner back and forth and up and down (hereinafter, these movements are collectively referred to as " When the cooking utensil is periodically collided with the cooking apparatus, vibration is applied. On the other hand, the operation of raising the cooking utensil from the top of the burner during or at the end of cooking, and the operation of lowering the pan to move the cooking utensil from the top of the burner to the top plate or the counter top (hereinafter, these). When the operations are collectively expressed (referred to as "operations such as raising a pot"), a temporary vibration is applied to the cooking apparatus. The vibration caused by either operation is an artificial vibration caused by the operation of the user, but the frequency when the acceleration information of the vibration applied to the cooking device by the operation such as shaking the pot is frequency-analyzed is the frequency of raising the pot, etc. Higher than that applied to the cooker by operation.

Therefore, when the acceleration information of the vibration output from the acceleration detecting means includes artificial vibration of a predetermined high frequency or higher, if the thermal power suppression control is invalidated, the manual thermal power suppression control is canceled. It is possible to smoothly continue cooking that requires a large amount of heat, such as stir-fry cooking. On the other hand, when the acceleration information of the vibration output from the acceleration detecting means does not include artificial vibration of a predetermined high frequency or higher, if the thermal power suppression control is executed, the cooking utensil can be cooked from above the burner by an operation such as raising a pot. When you move the burner, you can surely extinguish the burner or reduce the firepower of the burner. As a result, both workability and safety of cooking can be achieved at the same time.

Preferably, in the above-mentioned cooking apparatus,
When the control means detects an artificial vibration of a predetermined high frequency or higher in the acceleration information of the vibration output from the acceleration detection means during the execution of the thermal power suppression control, the thermal power suppression control is invalidated and the thermal power of the burner is controlled by the thermal power suppression. Has a configuration to return to the thermal power immediately before the execution.

In a cooking device in which the heat suppression control is executed when the cookware detecting means detects that the cookware is not placed on the burner, the burner is extinguished or the burner is extinguished by moving the cookware from the burner. The firepower is reduced.
However, according to the above-mentioned cooking apparatus, if the acceleration information of the vibration output from the acceleration detecting means includes an artificial vibration of a predetermined high frequency or higher during the execution of the thermal power suppression control, the thermal power suppression control is invalidated. Then, since the burning power of the burner is returned to the heating power immediately before the heating power suppression control is executed, for example, the user lifts the cooking utensil in order to start the operation such as shaking the pot, and the cooking utensil is not detected by the cooking utensil detecting means. Even if the placement is detected and the burning power of the burner is temporarily suppressed, the user performs an operation such as shaking the pot to detect artificial vibrations of a predetermined high frequency or higher, and cook with the predetermined heating power. Can be continued.

Preferably, in the above-mentioned cooking apparatus,
When the thermal power suppression control is disabled and the acceleration information of the vibration output from the acceleration detection means does not include artificial vibration of a predetermined high frequency or higher for a certain period of time, the control means controls the thermal power suppression. Has a configuration to cancel the invalidation of.

According to the above-mentioned cooking apparatus, when the thermal power suppression control is disabled and the acceleration information of the vibration output from the acceleration detecting means does not include artificial vibration of a predetermined high frequency or higher for a certain period of time. Since the invalidity of the heat suppression control is canceled, for example, in the case of putting down the pot, when the cooking utensil detection means detects that the cooking utensil is not placed, the heating power suppression control is executed and the burning power of the burner is suppressed. .. Therefore, it is possible to prevent the burner from burning due to a large open flame for a long time after the operation such as shaking the pot is stopped. On the other hand, when the cooking utensil is placed on the burner, the predetermined heating power is maintained, so that the workability of cooking is not impaired.
In addition, even if artificial vibrations above a predetermined high frequency are not detected when the cooking utensil is not placed on the burner, the heating power suppression control continues to be disabled for a certain period of time, so from the operation of shaking the pot. It is possible to avoid the suppression of the thermal power when shifting to the operation of shaking the pot or when the operation of shaking the pot or the like is temporarily interrupted to check the cooking state of the cooked food.

As described above, according to the present invention, when cooking is performed by a cooking apparatus in which the heating power suppression control is executed when the cooking utensil is not placed on the burner, even if an operation such as shaking a pot is performed. Cooking can be continued with the heat required for cooking. In addition, when an operation such as raising a pot is performed, the thermal power suppression control is executed, so that the burning of the burner is not continued by a large open flame. Therefore, according to the present invention, the workability of cooking can be improved and the safety can be improved.

FIG. 1 is a schematic perspective view showing a cooking apparatus according to an embodiment of the present invention. FIG. 2 is a circuit diagram showing a part of the cooking apparatus according to the embodiment of the present invention. FIG. 3 shows the measurement results of the acceleration information of the vibration applied to the cooking utensil when the pan shaking and pan raising operations are performed on the cooking utensil according to the embodiment of the present invention, and FIG. 3A shows the pan. The vibration waveform diagram and its vibration spectrum in the shaking operation are shown, and (b) shows the vibration waveform diagram and its vibration spectrum in the pot raising operation. FIG. 4 is a part of a flowchart showing an example of a control operation of the cooking apparatus according to the embodiment of the present invention. FIG. 5 is a part of a flowchart showing an example of a control operation of the cooking apparatus according to the embodiment of the present invention.

Hereinafter, the case where the cooking apparatus according to the embodiment of the present invention is applied to a built-in type gas stove housed in the opening of the counter top of the system kitchen will be described as an example.
As shown in FIG. 1, on the top plate 30 of the gas stove 1, the trivets 35, 36, 37 and the annular stove burners 31, 32, 33 are arranged, and at the center of the front surface of the stove body 3. An opening / closing door 20 of the grill storage 2 is arranged. In front of the upper surface of the top plate 30, a display unit 300 including a liquid crystal display unit for displaying an operating state, a cooking mode, a cooking condition, and the like is arranged so that the display panel can be visually recognized. In the present specification, the front of the gas stove 1 is referred to as the front, the depth direction of the gas stove 1 is referred to as the front-rear direction, the width direction is referred to as the left-right direction, and the height direction is referred to as the up-down direction.

A power switch 29 and point fire extinguishing operation units 41, 42, 43 having both fire extinguishing and heat setting functions of the stove burners 31, 32, 33 are arranged on the stove operation unit 23 on the front right side of the stove body 3. Has been done. The point fire extinguishing operation units 41, 42, and 43 are changed into two states, one is a used state protruding from the stove operating unit 23 and the other is an unused state flush with the stove operating unit 23 by repeating the pushing operation. It is provided. Further, below the point fire extinguishing operation units 41, 42, 43, an operation unit 39 for performing various automatic cooking with the stove burners 31, 32, 33 is provided.

FIG. 2 is a circuit diagram showing a part of the gas stove 1. Since the stove burners 31 and 33 also have the same circuit, these are omitted, and the stove burner 32 will be mainly described below.
At the center of the stove burner 32, a cooking utensil detection unit 320 for detecting the presence or absence of the cooking utensil P placed on the trivet 36 is provided. The cookware detection unit 320 has a thermistor 321 that detects the temperature of the kitchenware P, an upper end closed tubular head portion 322 that covers the thermistor 321, and a head portion 322 that is erected and fixed inside the stove body 3. A support pipe 323 to be connected and a spring member 324 interposed between the head portion 322 and the upper end of the support pipe 323 are provided. The cooking utensil detection unit 320 is configured such that the head portion 322 projects upward from the upper end surface of the trivet 36 in a state where the cooking utensil P is not placed on the upper portion of the trivet 36.

The head portion 322 is connected to the support pipe 323 in a state where it can slide up and down, and when the cooking utensil P is placed on the upper part of the trivet 36, the heat collecting plate 325 at the upper end is connected to the cooking utensil. It presses against the center of the bottom surface of P and is pushed down against the elastic force of the spring member 324. In the internal space of the support pipe 323, a magnet 326 that slides up and down in the support pipe 323 in conjunction with the vertical movement of the head portion 322 is provided. Further, a reed switch 327 is provided on the outer peripheral surface of the support pipe 323 to turn on when the magnet 326 is lowered to a predetermined position and to be turned off when the magnet 326 is separated upward from the predetermined position. Therefore, in the state where the cooking utensil P is placed on the upper part of the trivet 36, the head portion 322 of the cooking utensil detection unit 320 is pushed down, and the magnet 326 is also lowered to a predetermined position accordingly. As a result, the reed switch 327 is turned on. On the other hand, when the cooking utensil P is lifted from the trivet 36, the head portion 322 of the cooking utensil detection unit 320 is pushed up by the elastic force of the spring member 324, and the magnet 326 also separates upward from the predetermined position accordingly. As a result, the reed switch 327 is turned off. The thermistor 321 is fixed to the back surface of the heat collecting plate 325 inside the head portion 322, and is configured to detect the temperature of the cooking utensil P transmitted via the heat collecting plate 325. The temperature detected by the thermistor 321 is output to the control means 400 described later.

In the vicinity of the outer periphery of the burner body 21, a spark plug 51 that discharges sparks near the outside of the flame hole (not shown) when a predetermined voltage is applied, and the presence or absence of a gas combustion flame near the outside of the flame hole are detected. A flame detection sensor 52 is provided.

Inside the stove body 3, a valve unit 15 for adjusting the amount of gas supplied to the stove burner 32 according to the ignition operation, the fire extinguishing operation, and the thermal power setting operation of the point fire extinguishing operation unit 42 is incorporated. Further, on the downstream side of the valve unit 15, a gas ejection nozzle 17 for ejecting the gas supplied from the gas pipe 16 to the valve unit 15 toward the mixing pipe 22 of the stove burner 32 is provided.

The valve unit 15 opens when the point fire extinguishing switch 140 is turned on by the ignition operation, and closes when the combustion flame is not detected by the flame detection sensor 52 or another combustion error occurs, and the electromagnetic on-off valve 151 and the ignition operation. The main valve 152 opens when the point fire extinguishing switch 140 is turned on and closes when the point fire extinguishing switch 140 is turned off by the fire extinguishing operation. It is composed of a flow rate adjusting valve 153 whose opening degree is adjusted via a stepping motor 154 in response to an instruction from the control means 400, and the amount of gas ejected to the mixing pipe 22 by each of these valves 151, 152, 153 is appropriate. It will be adjusted. The details of the thermal power suppression control will be described later.

Further, inside the stove body 3, an acceleration detection unit 45 for detecting the acceleration of vibration applied to the gas stove 1 is provided. The acceleration detection unit 45 is preferably capable of digitally outputting an acceleration signal by on-board serial communication such as I2C (Inter-Integrated Circuit) mode or SPI (Serial Peripheral Interface) mode.

The acceleration detection unit 45 can use, for example, a piezoresistive type or capacitance type acceleration sensor, detects the acceleration of vibration applied to the gas stove 1 by the user, and has an acceleration having a level corresponding to the acceleration. The information is derived and output to the control means 400.

For example, when the user is performing an operation such as shaking a pot on the stove burner 32, the cooking utensil P repeatedly collides with the trivet 36, so that vibration is periodically applied to the gas stove 1. Further, when the user is performing an operation such as lifting the cooking utensil P from the stove burner 32 or moving the cooking utensil P from the stove burner 32 onto the top plate 30 or the counter top, the gas stove 1 is temporarily used. Vibration is applied. A plurality of acceleration detection units 45 may be provided in the stove body 3.

The point fire extinguishing switch 140, the electromagnetic on-off valve 151, the main valve 152, the stepping motor 154, the spark plug 51, the flame detection sensor 52, the thermistor 321 and the reed switch 327, and the acceleration detection unit 45 are control means incorporated in the stove body 3. It is electrically connected to the 400.

Although not shown, the control means 400 includes a control circuit including a storage device in which a control program and various data are stored, a timer, and a microcomputer that controls the operation of the entire gas stove 1. Further, the control means 400 ignites the stove burner 32 in response to the ignition operation of the point fire extinguishing operation unit 42, and automatic cooking is selected by the point fire extinguishing execution unit and the operation unit 39 that extinguish the stove burner 32 in response to the fire extinguishing operation. In this case, the cooking utensil P is placed on the upper part of the Gotoku 36 based on the on / off state of the reed switch 327, the automatic cooking control unit that controls the thermal power of the stove burner 32 according to a predetermined control program. A preset limit on the heating power of the stove burner 32 when the reed switch 327, which is a cooking utensil mounting determination unit that determines whether the stove is in a state or is not mounted, is in a “non-mounting” state. The stove burner 32 when the thermal power suppression control execution unit that adjusts to the thermal power, the acceleration determination unit that determines invalidation and cancellation of the invalidation of the thermal power suppression control based on the acceleration information output from the acceleration detection unit 45, and the thermal power suppression control are invalidated. When the ignition operation is performed by the point fire extinguishing operation unit 42 while the reed switch 327, which is the heat power setting unit that adjusts the heat power of the stove to a predetermined set heat power, is on, the acceleration information output from the acceleration detection unit 45 is initialized. It has a circuit configuration such as an initialization unit.

FIG. 3 shows the measurement results of the acceleration information of the vibration applied to the gas stove 1 when the pot shaking and the pot raising operations are performed on the gas stove 1 according to the present embodiment, and FIG. The vibration waveform diagram and its vibration spectrum in the operation are shown, and (b) shows the vibration waveform diagram and its vibration spectrum in the operation of raising the pot. In the frequency analysis, the measured acceleration is processed by a microcomputer using a fast Fourier transform.

In the operation of shaking the pot shown in FIG. 3A, the cooking utensil P is repeatedly moved in the front-rear direction on the stove burner 32, and the cooking utensil P repeatedly collides with the trivet 36. Periodic artificial vibrations are also observed above (eg, 10 Hz). Although not shown, for example, even when the cooking utensil P is moved in the front-back and up-down directions by swinging the pot, the same high-frequency periodic artificial vibration is observed. On the other hand, in the pot raising operation shown in FIG. 3B, the cooking utensil P is lifted from above Gotoku 36, and the head portion 322 is pushed upward by the elastic force of the spring member, so that the vibration waveform diagram is temporary. Vibrations are observed, but high frequency periodic artificial vibrations are not observed in the frequency analysis. As described above, all the vibrations are artificial vibrations applied to the gas stove 1 by the operation of the user, but as can be understood from the frequency analysis of FIG. A peak is observed at a higher frequency than the operation of raising the pot. Therefore, when the acceleration information of the applied vibration is frequency-analyzed and an artificial vibration of a predetermined high frequency or higher is detected, even if the cooking utensil P is not detected by the cooking utensil detection unit 320, the thermal power suppression control is performed. If disabled, cooking can be continued with appropriate heat. Further, even if vibration is applied, if artificial vibration of a predetermined high frequency or higher is not detected, safety can be ensured by executing thermal power suppression control.

Next, an example of the control operation in the case of cooking with the gas stove 1 of the present embodiment will be described with reference to FIG.
When the user places the cooking utensil P on the stove burner 32 after the power switch 29 of the gas stove 1 is turned on, the head portion 322 is pushed downward and the reed switch 327 is turned on. Then, when the ignition operation is performed by the point fire extinguishing operation unit 42, the control means 400 initializes the acceleration information with the acceleration detected by the acceleration detection unit 45 as the initial acceleration G0 (steps S1 to S3). Thereby, the acceleration information of the vibration applied to the gas stove 1 by the operation such as shaking the pot can be accurately determined based on the acceleration information at the start of cooking.

Further, when the above ignition operation is performed, the opening degree of the flow rate adjusting valve 153 is adjusted to a predetermined opening degree at the time of ignition, spark discharge is generated from the spark plug 51, and the electromagnetic on-off valve 151 and the main valve 152 are further operated. The valve is opened. As a result, a mixed gas having a concentration suitable for ignition is released from the flame hole and ignited by the spark discharge. As a result, the stove burner 32 is ignited.

When the point fire extinguishing operation unit 42 performs a thermal power setting operation after the stove burner 32 is ignited, the opening degree of the flow rate adjusting valve 153 is changed according to the operation position, and the set thermal power is stored ( Step S4). Although not shown, in the present embodiment, a new set thermal power is stored every time the point fire extinguishing operation unit 42 performs the thermal power setting operation, except when the thermal power suppression control is executed. Although it is configured, it may be configured so that only the thermal power immediately before the thermal power suppression control is executed is stored. Further, regardless of whether the thermal power suppression control is executed or disabled, when the fire extinguishing operation unit 42 performs the fire extinguishing operation, the main valve 152 is closed and the stove burner 32 is extinguished.

When the stove burner 32 is ignited as described above, it is determined whether or not the acceleration information output from the acceleration detection unit 45 includes artificial vibration of a predetermined high frequency f (for example, 10 Hz) or higher. (Step S5).

At this time, if the acceleration information output from the acceleration detection unit 45 includes an artificial vibration having a predetermined high frequency f or higher (Yes in step S5), the cooking utensil P is detected by the cooking utensil detection unit 320. Since it is considered that the user is operating the cooking utensil P periodically in this state, the thermal power suppression control is invalidated so as not to determine whether the cooking utensil P is mounted / not mounted by the lead switch 327. Then, a timer for measuring a predetermined standby time t1 (for example, 5 seconds) is started, and the heating power of the stove burner 32 is maintained at the set heating power (steps S6 to S8). As a result, it is possible to prevent fluctuations in the thermal power of the stove burner 32 when the head portion 322 moves up and down during the pan shaking operation. Further, when the operation of shaking the pot is detected and the thermal power suppression control is invalidated, the set thermal power is maintained. Therefore, in order to set the thermal power of the stove burner 32 to a predetermined thermal power again, the point fire extinguishing operation unit 42 There is no need to operate. Further, even when the cooking utensil P is lifted to shift to the pan-shaking operation after the pan-shaking operation, the heating power of the stove burner 32 is not suppressed, and cooking can be continued at the set heating power. Therefore, it is not necessary to perform another operation for canceling the heating power suppression control during cooking. As a result, the workability of cooking can be remarkably improved.

When the acceleration information output from the acceleration detection unit 45 includes artificial vibration of a predetermined high frequency f or higher (Yes in step S9) while the thermal power suppression control is disabled, a new standby time is provided. A new timer is started to clock t1 to continue disabling the thermal power suppression control (step S11).

When the user stops the operation such as shaking the pot and the acceleration information output from the acceleration detection unit 45 does not include artificial vibration of a predetermined high frequency f or higher (No in step S9), a predetermined standby is performed. The invalidation of the thermal power suppression control is continued until the time t1 elapses (step S10). In this way, even if artificial vibration of a predetermined high frequency f or higher due to the operation of the pot shaking or the like is no longer observed, it can be used during the operation of the pot shaking or the like by disabling the thermal power suppression control for a certain period of time. After a person temporarily moves the cooking utensil P from the stove burner 32 onto the top plate 30 in order to add a cooking utensil to the cooking utensil P or remove a part of the cooking utensil from the cooking utensil P. Even when the operation such as shaking the pot is restarted, cooking can be continued with the set heat power. Further, even if the cooking utensil P is lifted at intervals for a certain period of time in order to shift to the operation of shaking the pot after the operation of shaking the pot, the heating power suppression control is invalid until the predetermined standby time t1 elapses. Therefore, even if the cooking utensil P is lifted on the stove burner 32 after the operation of shaking the pot, it is possible to prevent the heating power of the stove burner 32 from being suppressed. Thereby, the workability of cooking can be further improved.

Even after the predetermined standby time t1 has elapsed, if the acceleration information output from the acceleration detection unit 45 does not include artificial vibration of a predetermined high frequency f or higher, the invalidation of the thermal power suppression control is canceled (step S12). ). As a result, it is possible to prevent the stove burner 32 from continuing to burn due to a large open flame for a long time.

Further, when the non-placement of the cooking utensil P is detected by the signal output from the reed switch 327, the timer is started to measure the predetermined elapsed time t2 (for example, 1 minute), and the heating power suppression control is performed. When executed, the thermal power of the stove burner 32 is changed to a predetermined limited thermal power (for example, the minimum thermal power) (steps S13 to S15).

While the thermal power suppression control is being executed, if the acceleration information output from the acceleration detection unit 45 includes an artificial vibration of a predetermined high frequency f or higher (Yes in step S16), the thermal power suppression control is invalid. Then, the heating power of the stove burner 32 is returned to the set heating power immediately before the heating power suppression control is executed, and cooking is continued.

If the installation of the cooking utensil P is detected by the time when the predetermined elapsed time t2 elapses during the execution of the thermal power suppression control (No in step S17, Yes in step S18), the thermal power of the stove burner 32 is set. (Step S19).

Further, during the execution of the thermal power suppression control, if the acceleration information output from the acceleration detection unit 45 does not include the artificial vibration of the predetermined high frequency f or higher until the predetermined elapsed time t2 elapses (in step S17). , Yes), extinguish the stove burner 32 with an error (step S20). As a result, it is possible to prevent the stove burner 32 from burning on an open flame for a long time when the cooking utensil P is not placed on the stove burner 32. Further, even if vibration is generated by an operation such as raising a pan, if the acceleration information output from the acceleration detection unit 45 does not include artificial vibration of a predetermined high frequency f or higher, the heating power of the stove burner 32 is the set heating power. Since it is not increased to, the user will not be surprised by the careless change of firepower.

As described above, according to the gas stove 1 of the present embodiment, when the cooking utensil P is not placed on the stove burner 32, the heating power suppression control for suppressing the heating power of the stove burner 32 is executed, but it is used. When a person performs an operation such as shaking a pot and the cooking utensil P periodically collides with the gas stove 1, the acceleration information of the vibration applied to the gas stove 1 is detected, and the thermal power suppression control is invalidated based on the acceleration information. Since it is judged whether or not, it is possible to cook with appropriate heat. Therefore, according to the gas stove 1 of the present embodiment, the workability of cooking can be improved and the safety can be improved.

1 Gas stove (cooking device)
31, 32, 33 Stove burner 320 Cookware detector 400 Control means 45 Acceleration detector P Cookware

Claims (3)

With a burner
A cooking utensil detection means that detects the presence or absence of a cooking utensil on the burner,
Acceleration detecting means for detecting the acceleration of applied vibration,
When the cookware detecting means detects that the cookware is not placed on the burner, the cookware is provided with a control means for extinguishing the fire of the burner or performing a heat suppression control for reducing the heat of the burner.
When the acceleration information of the vibration output from the acceleration detecting means includes an artificial vibration having a predetermined high frequency or higher, the control means determines that the vibration is periodic vibration caused by the shaking of the pot or the shaking of the pot, and suppresses the thermal power. When the control is invalidated and the acceleration information of the vibration output from the acceleration detecting means includes an artificial vibration having a frequency lower than the predetermined high frequency but higher than the seismic vibration, the temporary raising or lowering of the pot occurs. A heating and cooking device having a configuration that determines that it is a vibration and executes thermal power suppression control. In the cooking apparatus according to claim 1,
When the control means detects an artificial vibration of a predetermined high frequency or higher in the acceleration information of the vibration output from the acceleration detection means during the execution of the thermal power suppression control, the thermal power suppression control is invalidated and the thermal power of the burner is controlled by the thermal power suppression. A cooking device having a configuration for returning to the heating power immediately before the execution. In the cooking apparatus according to claim 1 or 2.
When the thermal power suppression control is disabled and the acceleration information of the vibration output from the acceleration detection means does not include artificial vibration of a predetermined high frequency or higher for a certain period of time, the control means controls the thermal power suppression. A cooking device having a configuration for canceling the invalidation of.

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