JP2013164194A - Cooking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooking device, which notifies a user in advance of an increase in fire power and ensures safe cooking even when the device automatically adjusts and controls the fire power to maintain a set temperature.SOLUTION: In automatic fire power adjustment and control, a cooking device sets a fire power change temperature for changing the fire power from low heat to high heat on the basis of a set temperature [Ts] set by a temperature setting unit 18. The device calculates a temperature falling gradient on the basis of a measured temperature [Th] after the power is reduced to a predetermined temperature, and on the basis of an elapsed time measured by a timer 6 after the temperature is decreased to the prescribed temperature. Then the device calculates an estimated time [Tp] required from the current time to reach the fire power change temperature on the basis of the temperature falling gradient, and calculates a notification start time [To] to secure a predetermined notification time [N]. After displaying a change in fire power through a speaker 5, the device increases the fire power from low power.

Description

  The present invention relates to a cooking apparatus for heating and cooking a cooking container containing an object to be cooked by a heating means.

  A gas burner that heats the cooking container containing the object to be cooked, a temperature sensor that measures the temperature of the bottom of the cooking container, and a control means that controls the combustion of the gas burner. There is known a cooking apparatus in which, when set, the control means performs automatic heating power adjustment control for increasing or decreasing the gas flow rate so that the measured temperature measured by the temperature sensor becomes the set temperature. In this type of cooking device, when the measured temperature is higher than the set temperature, the gas flow rate is limited to change the heating power from high heat to low heat, and when the measured temperature is lower than the set temperature, the gas flow rate is increased to change the heat power from low heat to high fire. Control is performed. For this reason, if the gas flow rate is increased immediately after the gas flow rate is reduced, the flame suddenly increases.For example, when changing the heat power from low to high in automatic heat control, the heat power changes slowly. Has been proposed (Patent Document 1).

JP 10-47682 A

  However, since a cooking container such as a pan is usually placed on the stove during cooking, the heating power will change for the user even if the heating power is increased slowly as described above, even if it is gradually changed from low to high. It is hard to see the state that is. For this reason, when the fire power becomes strong, if the user looks into the fire to look at it or puts his hand near the cooking container being cooked, there is a risk of burns or ignition of the sleeve. There is.

  The present invention has been made in view of the above circumstances, and provides a cooking device that allows a user to perform cooking safely even when performing automatic heating power adjustment control in order to keep the heating temperature during cooking at a set temperature. Objective.

The present invention comprises a heating means for heating a cooking container;
Temperature measuring means for measuring the temperature of the cooking container;
Temperature determining means for determining the heating temperature;
Based on the measured temperature measured by the temperature measuring means, a control means for performing automatic thermal power adjustment control to increase or decrease the thermal power of the heating means so that the measured temperature becomes the determined temperature determined by the temperature determining means;
A notification device that performs predetermined notification according to an instruction from the control unit,
The control means includes
When performing the automatic thermal power adjustment control,
Before increasing the heating power of the heating means, it is a cooking apparatus characterized in that the notification means is notified of a heating power change.

  According to the cooking apparatus, the user can know that the heating power is increased by the notification by the notification means before the heating power is increased by the automatic heating power adjustment control. As a result, it is possible to prevent the user from looking into the fire when the heat is high during cooking, or bringing his hand close to the vicinity of the cooking container.

Preferably, in the cooking device,
The control means includes
A heating power reduction temperature for changing the heating means to a side to reduce the heating power; and
A heating power increasing temperature to be changed to the side of increasing the heating power of the heating means, and
Calculate the temperature decrease gradient from the decrease change of the measured temperature after the thermal power decrease temperature,
Based on the temperature decrease gradient, extrapolate the estimated time to reach the heating power increase temperature,
Based on the predicted time, the notification means is notified of a change in thermal power.

Even if automatic thermal power adjustment control is performed, the change in measurement temperature measured by the temperature measurement means differs depending on the type of cooking object and cooking container, so the thermal power increase temperature that increases the thermal power after decreasing the thermal power is reached. The time it takes to change also changes.
According to the cooking apparatus of the present invention, the temperature decrease gradient while reducing the thermal power can be calculated, and the time to reach the thermal power increase temperature can be predicted based on this temperature decrease gradient. Even if the time required to reach the thermal power increase temperature varies depending on the difference, it is possible to notify the user before reaching the thermal power increase temperature.

Preferably, in the above cooking device,
The control means includes
Based on the determined temperature, before increasing the heating power of the heating means, set a notification start temperature to notify the heating power change from the notification means,
When the measured temperature in the state where the heating power of the heating means is reduced reaches the notification start temperature, the heating power of the heating means is increased after notifying the change of the heating power for a predetermined notification time.

  According to such a configuration, regardless of the temperature change after decreasing the thermal power, if the predetermined notification start temperature is reached, the thermal power change is notified for a certain notification time, and the thermal power is increased after the notification. Therefore, it is possible to fix the time from the start of notification to the heating power change for increasing the heating power. Therefore, when performing the automatic heating power adjustment control, it is possible to perform the start of notification and the control of changing the heating power after the end of notification by simple control.

  According to the cooking device according to the present invention, the user can know in advance that the thermal power is increased by the automatic thermal power adjustment control. Therefore, during cooking, when it becomes a high fire, you can prevent it from looking into the fire or putting your hands close to the vicinity of the cooking container, and cooking safely and safely without being surprised by the increased thermal power Can do.

It is a perspective view showing the whole gas stove composition concerning Embodiment 1 of the present invention. It is a block diagram which shows the structure of the control apparatus of the gas stove which concerns on Embodiment 1 of this invention. In this Embodiment 1, it is a graph which shows the relationship of the elapsed time-measurement temperature in the case of performing automatic heating temperature adjustment during cooking, Comprising: The timing of alerting | reporting is shown. It is a flowchart explaining the action | operation of the gas stove which concerns on this Embodiment 1. FIG. It is a block diagram which shows the structure of the control apparatus of the gas stove which concerns on Embodiment 2 of this invention. In this Embodiment 2, it is a graph which shows the relationship of the elapsed time-measurement temperature in the case of performing automatic heating temperature adjustment during cooking, Comprising: The timing of alerting | reporting is shown. It is a flowchart explaining the action | operation of the gas stove which concerns on this Embodiment 2. FIG.

[Embodiment 1]
Below, the cooking device concerning Embodiment 1 of the present invention is explained, referring to an accompanying drawing.

  The gas stove 1 shown in FIG. 1 is a built-in type in which a stove body 10 provided with three gas burners 11 is installed so as to be dropped into the opening of the countertop 12.

  Above the stove body 10, a rectangular stove top plate 13 is disposed so as to cover the upper open portion of the stove body 10, and the gas burner 11 is exposed on the top surface of the stove top plate 13. Further, five virtues 14 are located around each gas burner 11 on the stove top 13.

  At the center of each gas burner 11, there is provided a temperature sensor 2 corresponding to the temperature measuring means of the present invention in which the heat sensitive part at the tip contacts the bottom of a cooking container such as a pan to measure the bottom temperature of the cooking container. The temperature sensor 2 is supported by the gas burner 11 so as to be movable up and down.

  On the front portion of the stove body 10, there are provided a fire extinguishing button 15 for extinguishing each gas burner 11 and a thermal power adjusting lever 16 for adjusting the thermal power of each gas burner 11. Although not shown, the point fire extinguishing button 15 and the heating power adjusting lever 16 are connected between a gas pipe and the gas burner 11 and connected to an instrument plug for controlling gas supply from the gas pipe to the gas burner 11.

  The appliance plug is not shown in the drawing, but in a valve housing in which an internal gas passage is formed, an electromagnetic safety valve driven by the operation of the fire extinguishing button 15 and the heating power adjustment lever 16, an original gas valve, and a gas amount adjustment The needle valve is accommodated, and the gas introduced into the internal passage is sent to the gas burner 11.

  As shown in the block diagram of FIG. 2, the gas stove 1 includes a control device 4 that performs automatic heating power adjustment control that includes a microcomputer that controls the operation of the gas stove 1. Further, as shown in FIG. 2, a gas shut-off valve that is opened by the ignition operation of the fire extinguishing button 15 and is opened / closed by the control device 4 in the gas supply path between the appliance stopper (not shown) and the gas burner 11. 31 and a flow rate control valve 32 whose flow rate is controlled by the control device 4 to control the heating temperature are provided.

  In addition, the stove body 10 is attached with a speaker 5 which is a notification means for performing a predetermined notification in response to a signal from the control device 4. This speaker 5 is controlled by the control by the speaker control unit 43 of the control device 4. For example, when automatic heating power adjustment control is performed, when the heating power change is notified in advance or the heating temperature is set. Informs that the temperature of the cooking container has reached the set temperature, and further informs that the temperature of the cooking container has become too high and has become overheated. In addition, although the speaker 5 was used in this Embodiment 1, the alerting | reporting means can also use the light emission means which alert | reports by light, such as LED.

  Further, the gas stove 1 includes a storage type operation unit 17 as shown in FIG. 1, and the operation unit 17 includes a temperature setting unit 18 for setting a heating temperature as shown in FIG. Various cooking conditions such as cooking mode and cooking time can be set. Moreover, the gas stove 1 is provided with the timer 6 which measures cooking time, as shown in FIG. In the following description, the temperature setting unit 18 for determining the heating temperature during cooking by the user as a predetermined determined temperature (set temperature) is used as the temperature determining means of the present invention. When the cooking state such as the temperature rise gradient during cooking is determined and the heating temperature is determined to be a predetermined determination temperature, the control device 4 may be used as the temperature determination means of the present invention.

  The control device 4 includes a thermal power control unit 41 that controls the thermal power of the gas burner 11 by drivingly controlling the gas cutoff valve 31 and the flow rate control valve 32. The thermal power control unit 41 adjusts the thermal power of the gas burner 11 by adjusting the opening degree of the flow rate control valve 32 based on the measured temperature of the temperature sensor 2, or controls to extinguish the fire by closing the gas cutoff valve 31. To do. In the first embodiment, for example, the heating temperature is set by the temperature setting unit 18 and the automatic heating power adjustment control is performed so that the measured temperature [Th] measured by the temperature sensor 2 becomes the set temperature [Ts] set. 3, when the measured temperature [Th] of the temperature sensor 2 becomes equal to or higher than (set temperature [Ts] + 2 ° C.), the flow control valve 32 is controlled so as to reduce the thermal power, as shown in the graph of FIG. When [Th] falls below (set temperature [Ts] -2 ° C.), the flow control valve 32 is controlled to increase the thermal power.

  The control device 4 also includes a notification time setting unit 42 for setting a notification time [N] for notifying that the thermal power is changed in advance when the thermal power is increased during the automatic thermal power adjustment control, and a notification time setting unit. And a speaker control unit 43 that performs control to notify the speaker 5 in accordance with the notification time [N] set in 42. In the first embodiment, the notification time [N] is set to 2 seconds, for example.

  Further, when performing the automatic thermal power adjustment control based on the set temperature [Ts], the control device 4 has a thermal power reduction temperature that becomes a thermal power change temperature on the high temperature side when the thermal power is decreased, and a low temperature when the thermal power is increased. A heating power change temperature setting unit 44 that sets a heating power increase temperature that becomes a heating power change temperature on the side, a measured temperature [Th] by the temperature sensor 2 when the heating power is reduced, and a heating elapsed time measured by the timer 6 Based on the temperature gradient calculation unit 45 that calculates the temperature decrease gradient based on the temperature decrease gradient calculated by the temperature gradient calculation unit 45, the estimated time [Tp] from the current time until the low-temperature side thermal power increase temperature is reached is excluded. The notification start time [To] is calculated based on the prediction time calculation unit 46 to be inserted, the prediction time [Tp] calculated by the prediction time calculation unit 46, and the notification time [N] set by the notification time setting unit 42. And a notification start time calculation unit 47. .

  The thermal power change temperature setting unit 44 includes a high temperature side thermal power decrease temperature when the thermal power is reduced based on the set temperature [Ts] set by the temperature setting unit 18, and a low temperature side thermal power increase temperature when the thermal power is increased. Set. In the first embodiment, the thermal power decrease temperature when the thermal power is decreased is set to (set temperature [Ts] + 2 ° C.), and the thermal power increase temperature when the thermal power is increased is set to (set temperature [Ts] −2 ° C.). ing. These thermal power change temperatures are input to the thermal power control unit 41 and also to an estimated time calculation unit 46 described later.

  The temperature gradient calculation unit 45 measures the measured temperature [Th] after the thermal power is reduced during the automatic thermal power adjustment control and decreases to a predetermined temperature, and is measured by the timer 6 after the temperature is decreased to the predetermined temperature. A temperature decrease gradient is calculated based on the elapsed time. After the thermal power is reduced, after the temperature is lowered to a predetermined temperature, as shown in FIG. 3, for example, when the measurement temperature [Th] becomes (set temperature [Ts] + 2 ° C.) by heating with a strong fire, Although the heating power is changed to low heat, the measured temperature [Th] of the cooking container rises for a while (set temperature [Ts] + 2 ° C) due to overshoot, then begins to decrease, and again (set temperature [Ts] + 2 ° C). In the first embodiment, the elapsed time after the measurement temperature [Th] is lowered to (set temperature [Ts] + 2 ° C.) is again measured by the timer 6, and the elapsed time and the thermal power are in a reduced state. Based on the change in the measured temperature [Th] measured by the temperature sensor 2, a temperature decreasing gradient is calculated.

  Specifically, after the thermal power is reduced, the temperature gradient calculating unit 45 becomes (set temperature [Ts] + 1 ° C.) after the measured temperature [Th] becomes (set temperature [Ts] + 2 ° C.) again. Time, that is, the elapsed time [t1] until the measured temperature [Th] decreases by 1 ° C. from (the set temperature [Ts] + 2 ° C.) to the (set temperature [Ts] + 1 ° C.) and the measured temperature [Th] Is the elapsed time [t2] from when (set temperature [Ts] + 1 ° C.) to 1 ° C. from the set temperature [Ts], and the measured temperature [Th] is changed from the set temperature [Ts] to (set temperature [Ts] −1 And the elapsed time [t3] until the temperature decreases by 1 ° C. Then, the temperature gradient calculating unit 45 calculates the average value [t1 + t2 + t3 (seconds) / 3 (° C.)] of the temperature decreasing gradient when the temperature decreases by 1 ° C., from the total elapsed time while decreasing by 3 ° C.

  The predicted time calculation unit 46 calculates the current temperature (in the first embodiment, the measured temperature [Th] is (set) based on the average value of the temperature decrease gradient at which the temperature decreases by 1 ° C. calculated by the temperature gradient calculation unit 45. Temperature [Ts] -1 ° C.) until the temperature reaches the low-temperature side heating power increase temperature (set temperature [Ts] −2 ° C.) set by the heating power change temperature setting unit 44 [Tp = t1 + t2 + t3 (seconds) / 3 (° C.)]. In the first embodiment, an average value of the calculated temperature decrease gradients is extrapolated to extrapolate a predicted time until 1 ° C. is reduced from (set temperature [Ts] −1 ° C.) to (set temperature [Ts] −2 ° C.). For example, when the thermal power increase temperature is (set temperature [Ts] −3 ° C.), the predicted time [Tp] is [Tp = {t1 + t2 + t3 (seconds) / 3 (° C.]. )} × 2].

  The notification start time calculation unit 47 calculates the notification start time [To] based on the prediction time [Tp] extrapolated by the prediction time calculation unit 46 and the notification time [N] set by the notification time setting unit 42. To do. Specifically, the thermal power increase temperature (set temperature [Ts] −2 ° C.) set by the thermal power change temperature setting unit 44 from the time when the measured temperature [Th] reaches (set temperature [Ts] −1 ° C.). The waiting time [Tw] is calculated by subtracting the notification time [N] from the predicted time [Tp] until reaching the current time (set temperature [Ts] -1 ° C.). The time point when the waiting time [Tw] elapses is calculated as the notification start time [To] for starting notification.

  The speaker control unit 43 performs the notification start time [To calculated by the notification start time calculation unit 47 after the standby time [Tw] has elapsed from the time when the measured temperature [Th] becomes (the set temperature [Ts] -1 ° C.). ], The notification by the speaker 5 is started, and when the notification time [N] set by the notification time setting unit 42 elapses, the speaker 5 is controlled so as to end the notification. As described above, in the first embodiment, the notification by the speaker 5 is controlled so that the measured temperature [Th] of the cooking container at the end of the notification is approximately (set temperature [Ts] −2 ° C.).

  The thermal power control unit 41 includes a set temperature [Ts] set by the temperature setting unit 18, a measured temperature [Th] measured by the temperature sensor 2, and a thermal power decrease temperature set by the thermal power change temperature setting unit 44. And a thermal power increase temperature are input, and a notification completion signal is input from the speaker control unit 43. The thermal power control unit 41 controls the thermal power of the gas burner 11 so as to increase the thermal power after the notification by the speaker 5 is ended by the notification completion signal from the speaker control unit 43. By such control, the gas burner 11 is changed in heating power when the measured temperature [Th] of the cooking container becomes almost (set temperature [Ts] −2 ° C.). Therefore, while maintaining the heating temperature for heating the cooking container within a certain range, even if the temperature descending gradient varies depending on the type of cooking object and cooking container, the predetermined notification time [N] before the heating power is increased. It is possible to ensure that the user recognizes the thermal power change made after the notification. As a result, it is possible to prevent the danger of the user due to looking into the thermal power.

  In addition, the graph of FIG. 3 represents the case where the automatic heating-power adjustment control which maintains the temperature of a cooking container in setting temperature [Ts] in the gas stove 1 in this Embodiment 1 is performed, and the thermal power and cooking with time progress. The relationship with the measured temperature of the container is shown. The graph of FIG. 3 shows a state in which the heating power of the gas burner 11 is controlled so as to maintain the temperature of the cooking vessel in a range of approximately (set temperature [Ts] ± 2 ° C.).

  Next, the control of the thermal power of the gas burner 11 when the cooking container is heated by the automatic thermal power adjustment control that maintains the set temperature [Ts] in the gas stove 1 of the first embodiment will be described based on the flowchart of FIG.

  When the gas burner 11 is ignited and the user performs automatic heating power adjustment control in which the temperature setting unit 18 sets the heating temperature, the gas burner 11 heats the cooking container with a strong heat as shown in the flowchart of FIG. (Step S1). Next, it is determined whether or not the measured temperature [Th] is equal to or higher than (set temperature [Ts] + 2 ° C.) (step S2). When the measured temperature [Th] is equal to or higher than (set temperature [Ts] + 2 ° C.), the heating power of the gas burner 11 is controlled to low heat (step S3). Next, the time [t1] until the measured temperature [Th] reaches (the set temperature [Ts] + 1 ° C.) from (the set temperature [Ts] + 2 ° C.), and the measured temperature [Th] is (the set temperature [Ts] + 1 ° C) until reaching the set temperature [Ts] [t2], until the measured temperature [Th] reaches the set temperature [Ts] (set temperature [Ts] – 1 ° C) The time [t3] is initialized to zero seconds (step S4).

  When [t1], [t2], and [t3] are initialized, whether the measured temperature [Th] is (set temperature [Ts] + 2 ° C) or less (set temperature [Ts] + 1 ° C) It is determined whether or not (step S5). If the measured temperature [Th] is less than (set temperature [Ts] + 2 ° C) and exceeds (set temperature [Ts] + 1 ° C) (Yes in step S5), the time [t1] is added for 1 second. (Step S6).

  If the measured temperature [Th] is less than (set temperature [Ts] + 2 ° C) and not in the range exceeding (set temperature [Ts] + 1 ° C) (No in step S5), the process proceeds to the next step S7 and the measured temperature It is determined whether [Th] is equal to or less than (set temperature [Ts] + 1 ° C.) and in the range exceeding the set temperature [Ts]. When the measured temperature [Th] is equal to or lower than (set temperature [Ts] + 1 ° C.) and exceeds the set temperature [Ts] (Yes in step S7), the time [t2] is added for 1 second (step S8). ).

  When the measured temperature [Th] is equal to or lower than (set temperature [Ts] + 1 ° C.) and is not in the range exceeding the set temperature [Ts] (No in step S7), the process proceeds to the next step S9, where the measured temperature [Th] is It is determined whether or not the temperature is equal to or lower than the set temperature [Ts] (set temperature [Ts] -1 ° C.). When the measured temperature [Th] is equal to or lower than the set temperature [Ts] (the set temperature [Ts] -1 ° C.) (Yes in Step S9), the time [t3] is added for 1 second (Step S9). S10).

  When the measured temperature [Th] is equal to or lower than the set temperature [Ts] (the set temperature [Ts] -1 ° C.) (No in step S9), the process proceeds to the next step S11 and the measured temperature [Th] is reached. Is determined to be equal to or lower than (set temperature [Ts] -1 ° C.). If the measured temperature [Th] is not lower than (set temperature [Ts] -1 ° C.) (No in step S11), the process returns to step S5 and the measured temperature [Th] is (set temperature [Ts] -1). The operation from step S5 to step S11 is repeated until the temperature becomes equal to or lower than (° C.). When returning to step S5 from step S11 and performing the determination of step S5 again, the determination of step S5 of this time is performed after 1 second has elapsed since the previous determination of step S5.

  When the measured temperature [Th] is equal to or lower than (set temperature [Ts] -1 ° C.) (Yes in step S11), the temperature gradient calculating unit 45 determines that the measured temperature [Th] is (set temperature [Ts]. ] + 2 ° C) to (Set temperature [Ts] + 1 ° C) from the elapsed time [t1] until the temperature drops by 1 ° C, the temperature decreasing gradient during this time is obtained, and the (Set temperature [Ts] + 1 ° C) to the set temperature [Ts From the elapsed time [t2] until the temperature decreases to 1 ° C. until the temperature decreases, the temperature decreasing gradient is obtained, and the elapsed time until the temperature decreases from the set temperature [Ts] to (set temperature [Ts] -1 ° C.) by 1 ° C. From [t3], the temperature decreasing gradient during this period is obtained. Then, an average value (t1 + t2 + t3 / 3) of the temperature decrease gradient when the temperature decreases by 1 ° C. is obtained from these three temperature decrease gradient values. Since the average value of the temperature decreasing gradient is also the time required for the temperature to drop by 1 ° C., from the current time (set temperature [Ts] −1 ° C.) to (set temperature [Ts] −2 ° C.). The estimated time [Tp] required for the temperature to drop can be extrapolated. Then, by subtracting the notification time [N] set by the notification time setting unit 42 from the predicted time [Tp], notification starts from the time when the measured temperature [Th] becomes (set temperature [Ts] -1 ° C.). The waiting time [Tw] until time [To] is obtained.

  When the waiting time [Tw] is obtained, the counting of the waiting time [Tw] from the time when the measured temperature [Th] reaches (set temperature [Ts] -1 ° C.) to the notification start time [To] is started ( When the counting of the standby time [Tw] is completed (step S12), the notification of the heating power change by the speaker 5 is started (step S14). When the notification time [N] ends (Yes in step S15), the notification of the heating power change is ended (step S16), the process returns to step S1, and the heating power of the gas burner 11 is controlled to be strong.

  As described above, according to the cooking apparatus according to the first embodiment, the temperature decreasing gradient is obtained from the actual change in the measured temperature in the state where the heating power is reduced, and the heating power is changed from the present by the temperature decreasing gradient. By extrapolating the estimated time to the point in time and informing the user that the thermal power is increased before the thermal power is changed by the automatic thermal power adjustment control, the user can know the thermal power change in advance. Therefore, during cooking, it is possible to prevent the user from looking into the fire to see if it is overheated or to bring a hand close to the cooking container. be able to.

[Embodiment 2]
In the first embodiment, the notification start time is calculated based on the thermal power increase temperature and the temperature descending gradient, and the predetermined notification time and the thermal power change are notified from the notification start time before the thermal power is changed. In the second embodiment, a notification start temperature for starting notification that the heating power is changed is set, and when the measured temperature reaches the notification start temperature, notification of the heating power change is performed.

  The second embodiment is different from the first embodiment described above only in the configuration of the control device 7, and the description of the same configuration will be omitted, and the control device 7 will be described based on the block diagram of FIG.

  The control device 7 also includes a thermal power control unit 71 that controls the thermal power of the gas burner 11 by drivingly controlling the gas cutoff valve 31 and the flow rate control valve 32, and a temperature setting unit 18 that sets the heating temperature in the operation unit 17. Based on the temperature measured by the temperature sensor 2, the thermal power control unit 71 adjusts the opening degree of the flow control valve 32 to adjust the thermal power of the gas burner 11, or closes the gas cutoff valve 31 to extinguish the fire. Do. In the second embodiment, for example, when the automatic thermal power adjustment control is performed so that the set temperature [Ts] set by the temperature setting unit 18 is obtained, the temperature [Th] measured by the temperature sensor 2 as shown in the graph of FIG. ] Is equal to or higher than (set temperature [Ts] + 2 ° C.), the flow control valve 32 is controlled so as to reduce the thermal power. Further, when the measured temperature [Th] is lowered to the notification start temperature (set temperature [Ts] −1.5 ° C.), the thermal power change notification is started, and after a predetermined notification time and thermal power change notification, The flow control valve 32 is controlled so as to increase.

  The control device 7 is also set by the notification time setting unit 72 and the notification time setting unit 72 for setting a notification time [N] for notifying the change of the thermal power when the thermal power is increased during the automatic thermal power adjustment control. And a speaker control unit 73 that performs control to notify the speaker 5 according to the notification time [N]. In the second embodiment, the notification time [N] is set to 2 seconds, for example.

  Further, when performing the automatic thermal power adjustment control, the control device 7 includes a thermal power change temperature setting unit 74 that sets a thermal power reduction temperature on the high temperature side when the thermal power is reduced, and a thermal power change when the thermal power is increased. In addition, a notification start temperature setting unit 75 that sets a notification start temperature at which the speaker 5 starts to notify the heating power change is provided.

  The thermal power change temperature setting unit 74 sets a thermal power reduction temperature when the thermal power is decreased based on the set temperature [Ts] set by the temperature setting unit 18. Also in the second embodiment, the heating power reduction temperature on the high temperature side when the heating power is reduced is set to (set temperature [Ts] + 2 ° C.). This thermal power reduction temperature is input to the thermal power control unit 71.

  Based on the set temperature [Ts] set by the temperature setting unit 18, the notification start temperature setting unit 75 notifies the speaker 5 that the heating power is changed before the heating power is increased. 5 is used to set a notification start temperature for starting notification. In the second embodiment, the notification is started when the thermal power is reduced and the measured temperature [Th] reaches (the set temperature [Ts] −1.5 ° C.). This notification start temperature is input to the speaker control unit 73.

  The speaker control unit 73 starts notification by the speaker 5 when the measured temperature [Th] reaches (set temperature [Ts] −1.5 ° C.), and the notification time [N] set by the notification time setting unit 72. When the time elapses, the speaker 5 is controlled to end the notification.

  Further, the thermal power control unit 71 has a set temperature [Ts] set by the temperature setting unit 18, a measured temperature [Th] measured by the temperature sensor 2, and a high temperature side set by the thermal power change temperature setting unit 74. The thermal power decrease temperature is input, and a notification completion signal is input from the speaker control unit 73. The thermal power control unit 71 controls the thermal power of the gas burner 11 so as to increase the thermal power after the notification by the speaker 5 is completed.

  By such control, after the thermal power of the gas burner 11 is reduced, when the measured temperature [Th] of the cooking container reaches (set temperature [Ts] −1.5 ° C.), the thermal power change is notified for a predetermined notification time. Since the thermal power is increased after the notification is completed, the user can be surely recognized the thermal power change before the thermal power is increased.

  The graph of FIG. 6 of the second embodiment also shows the case where the automatic heating power adjustment control is performed in the gas stove 1 to maintain the temperature of the cooking container at the set temperature [Ts]. The relationship with the measured temperature is shown.

  Next, control of the thermal power of the gas burner 11 when the cooking container is heated by automatic thermal power adjustment control that maintains the set temperature [Ts] in the gas stove 1 of Embodiment 2 will be described based on the flowchart of FIG.

  When the gas burner 11 is ignited and the user performs automatic thermal power adjustment control in which the temperature setting unit 18 sets the heating temperature, first, as shown in the flowchart of FIG. 7, notification starts based on the set temperature. The temperature (set temperature [Ts] −1.5 ° C.) is set (step 21), and the gas burner 11 begins to heat the cooking container with a strong heat (step S22). Next, it is determined whether or not the measured temperature [Th] is equal to or higher than (set temperature [Ts] + 2 ° C.) (step S23). When the measured temperature [Th] is equal to or higher than (set temperature [Ts] + 2 ° C.), the heating power of the gas burner 11 is controlled to be low heat (step S24). Next, it is determined whether or not the measured temperature [Th] is equal to or lower than the notification start temperature (set temperature [Ts] −1.5 ° C.) (step S25).

  When the measured temperature [Th] is equal to or lower than the notification start temperature (set temperature [Ts] −1.5 ° C.) (Yes in step S25), notification of the heating power change by the speaker 5 is started (step S26). ). Then, when the notification time [N] ends (Yes in step S27), the notification of the heating power change is ended (step S28), the process returns to step S22, and the heating power of the gas burner 11 is controlled to a strong fire.

  As described above, according to the cooking apparatus according to the second embodiment, the notification start temperature (set temperature [Ts] −1.5 ° C.) is set based on the set temperature, and the measured temperature [Th] is the notification start temperature. When it becomes below, the notification of the thermal power change is started. And since thermal power is increased after completion | finish of predetermined alerting | reporting time [N], it can alert | report a thermal power change by automatic thermal power adjustment control to a user by simple control, and a user knows thermal power change in advance. be able to. Therefore, during cooking, it is possible to prevent you from looking into the fire when it is overheated, or to bring your hands close to the vicinity of the cooking container. be able to.

  The cooking apparatus according to the present invention is not limited to the above embodiments, and various design changes can be made. For example, in the first embodiment, the time required for each temperature drop by 1 ° C. from (set temperature [Ts] + 2 ° C.) is measured. It is also possible to obtain a temperature decreasing gradient at which the temperature decreases by 1 ° C. by measuring the time.

  Furthermore, although the said embodiment demonstrated the case where automatic thermal power adjustment control was performed based on the setting temperature set in the temperature setting part 18, similarly to Embodiment 1, at the time of stewed cooking and fried cooking, respectively The present invention can also be applied to the case where the cooking state is automatically determined from the temperature rise gradient at the bottom of the pan and the heating temperature for maintaining the constant temperature state is automatically determined based on the temperature when the constant temperature state is reached. In this case, automatic thermal power adjustment control is performed based on the automatically determined temperature, the predetermined heating power increase temperature is set based on the determined temperature, and the notification means is controlled, or the notification is started based on the determined temperature. You can set the temperature.

  Moreover, this invention is applicable also to grilled fish etc., when foodstuffs are heated directly, without installing a cooking container on the gas burner 11. FIG.

1 Gas stove 2 Temperature sensor (temperature measuring means)
4. Control device (control means)
5 Speaker (notification means)
11 Gas burner (heating means)
18 Temperature setting part (Temperature setting means)

Claims (3)

Heating means for heating the cooking vessel;
Temperature measuring means for measuring the temperature of the cooking container;
Temperature determining means for determining the heating temperature;
Based on the measured temperature measured by the temperature measuring means, a control means for performing automatic thermal power adjustment control to increase or decrease the thermal power of the heating means so that the measured temperature becomes the determined temperature determined by the temperature determining means;
A notification device that performs predetermined notification according to an instruction from the control unit,
The control means includes
When performing the automatic thermal power adjustment control,
The cooking apparatus characterized by causing the notification means to notify a change in heating power before increasing the heating power of the heating means. The cooking device according to claim 1,
The control means includes
A heating power reduction temperature for changing the heating means to a side to reduce the heating power; and
A heating power increasing temperature to be changed to the side of increasing the heating power of the heating means, and
Calculate the temperature decrease gradient from the decrease change of the measured temperature after the thermal power decrease temperature,
Based on the temperature decrease gradient, extrapolate the estimated time to reach the heating power increase temperature,
A cooking apparatus characterized by causing the notification means to notify a change in heating power based on the predicted time. The cooking device according to claim 1,
The control means includes
Based on the determined temperature, before increasing the heating power of the heating means, set a notification start temperature to notify the heating power change from the notification means,
When the measured temperature in the state where the heating power of the heating means is reduced reaches the notification start temperature, the heating power of the heating means is increased after notifying the change of the heating power for a predetermined notification time.

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