JP6951863B2 - Cooker - Google Patents

Description

The present invention relates to a cooker, particularly a cooker having an automatic cooking function.

Conventionally, a cooking device such as a stove or a grill device has an automatic cooking function that automatically adjusts the output heat amount and operating time of the heating means based on the heating control sequence corresponding to the cooking conditions selected and set by the user. Is known (see, for example, Patent Document 1).

More specifically, for example, a setting input means for setting a cooking method (cooking mode) of an object to be heated such as a food material, a cooking time, and a heating condition such as a heating temperature, and a temperature detecting means for detecting the temperature in a cooking container or a heating chamber. And a time measuring means for measuring the operating time of the heating means, and automatically turns off the heating means when the detection temperature of the temperature detecting means reaches a predetermined temperature or when the operating time of the heating means reaches a predetermined time. It is configured to. Since it is not necessary for the user to frequently monitor the heating state of the object to be heated during cooking, this product is much more convenient than a cooking cooker that does not have an automatic cooking function.

Japanese Unexamined Patent Publication No. 2014-211802

By the way, this kind of cooking cooker is equipped with a safety device that reduces the output of the heating means in the event of an unsafe situation. For example, in the case of a gas stove, it is safe to limit the heating of the cooking container by reducing the heating power when the cooking container is removed from the burner (heating means) or extinguishing the burner when the temperature of the cooking container rises abnormally. The device is installed. Since such a heating restriction operation is executed even during automatic cooking if an unsafe situation occurs, the actual heating state of the object to be heated deviates from the set heating conditions, and the automatic cooking is performed. There was a risk of affecting the completeness of the dish.

Moreover, it is difficult for the user to determine the appropriate remaining output heat amount and operating time after the heating means are automatically turned off, and depending on the setting of the output heat amount and operating time of the heating means when resuming cooking. , There is a possibility that the finished state of cooking may vary.

The present invention has been made in view of the above problems, and an object of the present invention is to cook in a cooking device having a function of automatically adjusting the output heat amount and operating time of the heating means based on the set heating conditions. The purpose is to improve performance.

The present invention is a heating cooker including a heating means for heating an object to be heated and a control means for an automatic cooking operation for adjusting the output heat amount and the operating time of the heating means based on a predetermined heating control sequence. When the detection temperature of the temperature detecting means for detecting the temperature state of the object to be heated and the detection temperature of the temperature detecting means becomes a predetermined temperature or higher, the output heat amount of the heating means is set and output when the detected temperature becomes the predetermined temperature or higher. Limited output heat amount smaller than the calorific value The control means of the heating limiting operation that continues heating by limiting the amount of heat, and the limited output calorific value and limiting of the heating means during the heating limiting operation when the heating limiting operation is executed during the automatic cooking operation. The heating limiting operation control means includes a correction control means for correcting at least one of the output heat amount and the operating time of the heating means in the automatic cooking operation after the heating limit according to the degree of heating limitation based on the operating time. When the output heat amount of the heating means is limited to the limited output heat amount and the detection temperature of the temperature detecting means becomes less than a predetermined temperature, the output heat amount of the heating means is maintained at the limited output heat amount and the automatic cooking is continued .

In this product, when the detection temperature of the temperature detecting means exceeds a predetermined temperature during automatic cooking, the output heat amount of the heating means is limited to a predetermined amount or less, but the output heat amount of the heating means (the limited amount) Since the degree of heating in the automatic cooking operation after the heating restriction is automatically corrected based on the limited output heat amount), even if the output heat amount of the heating means is limited to a predetermined value or less during the automatic cooking, the cooking by the automatic cooking is completed. The degree can be kept high.

In this case, even if the automatic cooking operation is started again after the heating limiting function is activated in a temperature state that is likely to be scorched, the scorching can be suppressed.

As described above, according to the present invention, even if the output heat amount of the heating means is limited to a predetermined value or less during automatic cooking, the output heat amount and operating time of the heating means in the subsequent automatic cooking operation are automatically corrected and automatically corrected. Since the degree of perfection of cooking can be kept high, cooking performance is improved.

FIG. 1 is a schematic perspective view of a cooking device according to an embodiment of the present invention. FIG. 2 is a schematic configuration diagram of a cooking device according to an embodiment of the present invention. FIG. 3 is a flowchart showing a control operation during automatic cooking in the cooking apparatus according to the embodiment of the present invention.

Next, the above-described embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the cooking cooker 1 according to the embodiment of the present invention has one or more heating means for heating an object to be heated such as foodstuffs and cooking containers on the upper surface of the top plate 11. It is a gas stove provided with a stove burner 21 and a grill storage 30 for grilling ingredients. Inside the grill chamber 30, a single or a plurality of grill burners 31 are incorporated as heating means for heating the object to be heated in the chamber. In this specification, the front surface (front surface of the main body) 13 of the main body case 10 is the front surface of the cooking cooker 1, and the depth direction of the main body case 10 when the cooking cooker 1 is viewed from the front side is the front-rear direction and the width direction. Is called the left-right direction, and the height direction is called the up-down direction.

On the outer circumference of the stove burner 21 on the upper surface of the top plate 11, a trivet 22 that supports a cooking container such as a pot or a frying pan from below is placed. At the center of the stove burner 21, a pot bottom temperature sensor 23 is provided as a temperature detecting means that abuts on the bottom of the cooking container placed on the trivet 22 and detects the temperature state of the bottom of the container. A flame detection sensor 24 for detecting the presence or absence of a combustion flame of gas and a spark plug 25 for discharging sparks in the vicinity of the flame hole forming portion of the control burner 21 are provided.

On the front surface 13 of the main body, there is a setting operation panel 40 for setting and inputting heating conditions of the object to be heated by the stove burner 21 and the grill burner 31, and a power switch for manually operating the main power on and off of the cooking cooker 1. 43, a stove point fire extinguishing operator 44 for manually operating the ignition, fire extinguishing, and thermal power adjustment of the stove burner 21, and a grill point fire extinguishing operator 45 for manually operating the ignition, fire extinguishing, and thermal power adjustment of the grill burner 31. It is provided.

An internal temperature sensor 33 is provided at the rear portion (back side) of the grill chamber 30 as a temperature detecting means for detecting the temperature inside the grill. A flame detection sensor 34 for detecting the presence or absence of a combustion flame of gas and a spark plug 35 for discharging sparks in the vicinity of the flame hole forming portion are provided in the vicinity of the flame hole forming portion of the grill burner 31 (see FIG. 2). ).

The power switch 43 is always provided so as to project forward from the front surface 13 of the main body, and each time the power switch 43 is pressed, the main power supply of the cooking cooker 1 is alternately switched between an on state and an off state. The stove point fire extinguishing operator 44 and the grill point fire extinguishing operator 45 are pushed further backward from the heating off state buried in the main body case 10, so that they protrude forward from the main body front surface 13 and become a heating on state. By pushing it back from the on state again, the heating off state is set.

The stove point fire extinguishing operator 44 and the grill ignition operator 45 each include an alternate switch that is turned on by an ignition operation and turned off by a fire extinguishing operation, and a rotary switch having a plurality of (for example, nine) contacts. After the ignition operation is performed, if it is rotated to the left or right, the thermal power (output heat amount) corresponding to the rotation position is selected and set.

On the setting operation panel 40, a setting input switch 46 for setting and inputting heating conditions for automatic cooking such as a heating method (cooking mode), heating time, and heating temperature of the object to be heated, and heating conditions set by the setting input switch 46 are displayed. A setting display unit 47 for displaying is provided.

The setting input switch 46 is a cooking mode setting switch for selecting and setting a cooking mode such as boiling water, boiled food, fried food, and rice cooking, a timer setting switch for setting an automatic cooking time, and a heating temperature for a heated object. It consists of a temperature setting switch, an adjustment switch for adjusting the set heating time and heating temperature, and the like, and the heating conditions of the object to be heated can be set and input using each of these switches.

As shown in FIG. 2, inside the main body case 10, the stove burner 21 adjusts the amount of fuel gas supplied to the stove burner 21 according to the ignition operation, the fire extinguishing operation, and the thermal power setting operation by the stove point fire extinguishing controller 44. A valve unit 26 for the grill burner 31 and a valve unit 36 for the grill burner 31 that adjusts the amount of fuel gas supplied to the grill burner 31 according to the ignition operation, the fire extinguishing operation, and the thermal power setting operation by the grill point fire extinguishing controller 45 are provided. There is. The control burner 21 and the grill burner 31 mix fuel gas supplied from a gas pipe (not shown) via the valve units 26 and 36 with air and ignite the fuel gas to generate combustion exhaust gas.

The valve unit 26 for the stove burner 21 is an electromagnetic on-off valve and a stove point fire extinguishing operation that opens when the ignition operation is performed by the stove point fire extinguishing controller 44 and closes when the gas combustion flame is no longer detected by the flame detection sensor 24. Main valve that opens when ignition operation is performed on the child 44 and closes when fire extinguishing operation is performed, needle valve whose opening is adjusted according to the thermal power setting operation of the stove point fire extinguishing operator, and thermal power change from the control circuit 50 It is composed of a thermal power switching valve that switches the opening degree according to the instruction of the above, and the amount of gas supplied to the controller 21 is appropriately adjusted by each of these valves.

The valve unit 36 for the grill burner 31 is an electromagnetic on-off valve and a grill point fire extinguishing actuator that opens when the grill point fire extinguishing actuator 45 ignites and closes when the gas combustion flame is no longer detected by the flame detection sensor 34. Main valve that opens when ignition operation is performed at 45 and closes when fire extinguishing operation is performed, needle valve whose opening is adjusted according to the thermal power setting operation of the grill point fire extinguishing controller 45, and thermal power change from the control circuit 50 It is composed of a thermal power switching valve that switches the opening degree according to an instruction, and the amount of gas supplied to the grill burner 31 is appropriately adjusted by each of these valves.

At a position below the pot bottom temperature sensor 23 in the main body case 10, a pot detection sensor 27 is provided as a means for detecting an object to be heated to detect whether or not a cooking container is placed on the trivet 22. More specifically, the pot bottom temperature sensor 23 is supported in a state of protruding upward from the upper surface (placement surface of the cooking container) of the trivet 22 and in a state of being slidable up and down, and the pot detection sensor 27 is supported. , A cooking container is placed on the trivet 22, and the pot bottom temperature sensor 23 is pushed down against the elastic force of a spring member (not shown) to turn it on. The cooking container is removed from the trivet 22 and the pot bottom temperature sensor 23 is removed. Is configured to be turned off by being pushed up to the original protruding position by the elastic force of the spring member.

At the position near the center on the lower surface side of the top plate 11 in the main body case 10, the operation information and heating conditions of the cooking cooker 1 such as the set cooking mode, the set heating power of each burners 21 and 31, and the cooking time are displayed. An information display unit 41 for displaying is provided. Further, inside the main body case 10, a control circuit 50 that controls the operation of the entire cooking cooker 1 is incorporated.

An igniter (not shown) that applies a high voltage to the pot bottom temperature sensor 23, the internal temperature sensor 33, the flame detection sensors 24, 34, and the ignition plugs 25, 35, the valve drive unit of the valve units 26, 36, the pot detection sensor 27, and the power switch. 43, each switch of the stove point fire extinguishing operator 44, each switch of the grill point fire extinguishing operator 45, the setting input switch 46, and the setting display unit 47 are all connected to the control circuit 50 through electrical wiring.

The control circuit 50 is a burner control unit that ignites, extinguishes, and sets the thermal power of the burners 21 and 31, a display control unit that controls the display of the information display unit 41 and the setting display unit 47, and output values of the flame detection sensors 24 and 34. Judging the ignition and extinguishing of each burner 21 and 31 based on The pot temperature determination unit, the internal temperature determination unit that determines the temperature state inside the grill chamber 30 based on the detection temperature (internal temperature) of the internal temperature sensor 33, the trivet 22 based on the on / off state of the pan detection sensor 27 Burner 21, based on the heating control sequence corresponding to the heating conditions set by the setting input switch 46, the panless determination unit that determines whether or not the cooking container is not placed in the "no pan" state. It has a circuit configuration such as a control unit for automatic cooking operation that automatically adjusts the thermal power (output heat amount) and burning time (operating time) of 31.

Further, in the control circuit 50, when the detection temperature Th of the corresponding temperature sensors 23 and 33 reaches the set upper limit temperature T1 during automatic cooking, or when "no pot" is detected by the corresponding pot detection sensor 27. In addition, the control unit of the heating limiting operation that makes the heating power of the corresponding burners 21 and 31 smaller than the set, the cooking timer that measures the execution time of the automatic cooking operation (automatic cooking time), the execution time of the heating limiting operation (limited heating time) A limit timer for measuring, a storage unit for storing operation information of the cooking cooker 1 during automatic cooking, an automatic cooking end determination unit for determining whether or not the set cooking time S1 has been reached, and a limit timer. It has a circuit configuration such as a correction control unit that extends and corrects the set cooking time S1 based on the measurement time of.

The control operation of the stove burner 21 at the time of automatic cooking by the control circuit 50 will be described with reference to the flowchart of FIG. Although not shown, when the main power supply is turned on by the power switch 43 when the following control operation is executed, the main control program of the cooking cooker 1 incorporated in the control circuit 50 is activated. The burners 21 and 31 are in a state where they can be manually ignited. Further, the information display unit 41 displays the operating state and setting information of the cooking device 1, and the setting display unit 47 displays the set cooking time and heating temperature. Further, for example, when the cooking mode is selected and set by the cooking mode setting switch of the setting input switch 46 corresponding to the stove burner 21, the automatic cooking operation by the stove burner 21 in the set cooking mode can be executed. It becomes. In addition, the information display unit 41 displays the remaining cooking time in the set cooking mode.

In the stove burner 21 in which the cooking mode is set as described above, when the ignition operation is performed by the corresponding stove point fire extinguishing operator 44, sparks are discharged from the spark plug 25, and the electromagnetic on-off valve of the corresponding valve unit 26 and the electromagnetic on-off valve of the corresponding valve unit 26 and Open the main valve. Further, the opening degree of the needle valve is adjusted to a predetermined ignition opening degree in accordance with the ignition operation. As a result, a set amount of fuel gas is supplied to the stove burner 21 and ignited by the spark discharge. When a combustion flame is detected by the corresponding flame detection sensor 24, the thermal power switching valve of the corresponding valve unit 26 is set to the opening corresponding to the cooking mode, and the thermal power of the stove burner 21 is set to the set thermal power (for example,). (Medium heat) is adjusted, and the cooking timer is further activated to start measuring the execution time of the automatic cooking operation, that is, the automatic cooking time (ST1 to ST2).

Then, until the automatic cooking time reaches the set cooking time S1 (for example, 10 minutes), whether or not "no pot" is detected by the pot detection sensor 27 and the detection temperature of the pot bottom temperature sensor 23 (hereinafter, "pot bottom"). It monitors whether Th (referred to as "temperature") has reached the set upper limit temperature T1 (for example, 250 ° C.) (ST3 to ST5).

Although not shown, after the automatic cooking operation is started in the cooking mode set as described above, the setting is not changed even if the setting input of the heating condition is performed by the corresponding setting input switch 46. That is, the acceptance of the setting change of the heating condition is rejected.

After that, when the automatic cooking time reaches the set cooking time S1 (Yes in the step of ST3), the electromagnetic on-off valve of the corresponding valve unit 26 is closed to forcibly shut off the gas supply to the stove burner 21. The fire is extinguished, the cooking timer is stopped, and the automatic cooking operation is terminated (ST6 to ST7). Further, although not shown, the display of the remaining cooking time and setting information displayed on the information display unit 41 and the cooking time and heating temperature displayed on the setting display unit 47 is erased.

Although not shown, during the execution of the steps from ST3 to ST5, the corresponding stove point fire extinguishing controller 44 manually extinguishes the fire, or the fire is misfired for some reason and the corresponding flame detection sensor 24 is used. Similarly, when the combustion flame is no longer detected, the supply of gas to the stove burner 21 is forcibly cut off, the cooking timer is stopped, and the automatic cooking operation is terminated.

When the cooking container is removed from the top of the trivet 22 during the execution of the steps ST3 to ST5 and "no pot" is detected by the pot detection sensor 27, that is, when the pot detection sensor 27 is turned off ( Yes), set the thermal power switching valve of the corresponding valve unit 26 to a predetermined limit opening, and set the thermal power of the stove burner 21 to a limited thermal power smaller than the set thermal power when "no pot" is detected (for example, the minimum thermal power). ), And further activate the limit timer to start measuring the execution time of the heating limit operation, that is, the limit operation time (ST8 to ST9).

Although not shown, if the automatic cooking time reaches the set cooking time S1 between the start of the heating restriction operation and the time when the pot detection sensor 27 does not detect "no pot" again, the corresponding stove is used. The fire of the burner 21 is extinguished, the cooking timer is stopped, and the automatic cooking operation is terminated (ST6 to ST7). Further, the limit timer is also stopped at the same time, and as described above, the display of the information display unit 41 and the setting display unit 47 is also erased.

When "no pot" is not detected again by the pot detection sensor 27 between the start of the heating restriction operation and the time when the set cooking time S1 is reached, that is, the pot detection sensor 27 is turned on again. If (No in the step of ST10), set the heating power switching valve of the corresponding valve unit 26 to the opening corresponding to the cooking mode, return the heating power of the stove burner 21 to the original set heating power, and limit the timer. Is stopped (ST11 to ST12).

Then, the correction time E1 when there is no pot is calculated from the limited operation time measured by the limit timer, added to the set cooking time S1, and then the measurement time (automatic cooking time) of the cooking timer is extended and corrected. Automatic cooking continues until the cooking time S1 is reached (ST13, ST3 to ST5). Further, although not shown, the information display unit 41 displays the remaining cooking time calculated from the set cooking time S1 extended and corrected as described above.

In the above embodiment, the correction time E1 without the pan is the limited operating time measured by the limiting timer. Specifically, for example, when the limited operating time measured by the limiting timer is C1 with the output heat amount of the set thermal power as Q, the cooking container has not been heated for C1 hours, so that the heating limiting operation is performed even once. The amount of heat for Q × C1 is insufficient for the total amount of heat for automatic cooking when there is no such thing. Therefore, the correction time E1 = C1 when there is no pot. Alternatively, the time obtained by subtracting a predetermined value from C1 in consideration of the amount of heat accumulated in the cooking container during heating, that is, E1 = C1-A (however, 0 <A <C1) is set.

Even if the object to be heated becomes overheated during the execution of the steps from ST3 to ST5 and the pot bottom temperature Th reaches the set upper limit temperature T1 (Yes in the step of ST5), the controller 21 is the same as in the steps of ST8 to ST9. The thermal power of the above is adjusted to a limited thermal power (for example, the minimum thermal power) smaller than the set thermal power at the time of overheat detection, and further, the limiting timer is operated to start the measurement of the limited operating time (ST14 to ST15).

Although not shown, if the automatic cooking time reaches the set cooking time S1 between the start of the heating restriction operation and the time when the pot bottom temperature Th becomes lower than the set upper limit temperature T1 again, the corresponding stove burner 21 The fire is extinguished, the cooking timer is stopped, and the automatic cooking operation is terminated (ST6 to ST7). Further, although not shown, the limit timer is also stopped at the same time, and as described above, the display of the information display unit 41 and the setting display unit 47 is also erased.

When the pot bottom temperature Th becomes lower than the set upper limit temperature T1 again between the start of the heating restriction operation and the time when the automatic cooking time reaches the set cooking time S1, that is, the temperature of the object to be heated is again from the overheated state. If it is removed (No in the step of ST16), the thermal power switching valve of the corresponding valve unit 26 is set and held at the limit opening, the thermal power of the stove burner 21 is returned to the original set thermal power, and the limit timer is stopped ( ST17 to ST18).

Then, the correction time E2 at the time of overheating is calculated from the limited operation time measured by the limit timer, added to the set cooking time S1, and then the measurement time (automatic cooking time) of the cooking timer is extended and corrected for the set cooking. Automatic cooking continues until time S1 is reached (ST19, ST3 to ST5). Further, although not shown, the information display unit 41 displays the remaining cooking time calculated from the set cooking time S1 extended and corrected as described above.

In the above embodiment, the correction time E2 at the time of overheating is calculated from the limited operating time measured by the limited timer and the output heat amount at the limited thermal power. Specifically, for example, when the output heat amount of the set thermal power is Q and the output heat amount of the limited thermal power is q, and the limited operating time measured by the limiting timer is C2, the cooking container is set to the output heat amount q at the limited thermal power. Since it was heated for C2 hours, the amount of heat of (Qq) × C2 is insufficient with respect to the total amount of heat during automatic cooking when the heating limiting operation is never performed. Therefore, the correction time at the time of overheating is set to E2 = (Q−q) × C2 / q.

In the above control operation, the automatic cooking on the stove burner 21 has been described. However, when the automatic cooking operation on the grill burner 31 is executed, that is, after the cooking mode corresponding to the grill burner 31 is selected and set, the grill point fire extinguishing operator When the ignition operation is performed by 45, the steps of ST4 and ST8 to ST13 are not performed, and in the steps of ST5 and ST16, the detection temperature (inside temperature) Th of the inside temperature sensor 33 is the set upper limit. It is determined whether or not the temperature is T1 or higher. That is, after the measurement of the execution time (automatic cooking time) of the automatic heating operation by the grill burner 31 is started in the step of ST2, until the automatic cooking time reaches the set cooking time S1 (for example, 20 minutes). It is monitored whether or not the internal temperature Th has reached the set upper limit temperature T1 (for example, 200 ° C.).

When the internal temperature Th reaches the set upper limit temperature T1 (Yes in the step of ST5), the heating power of the grill burner 31 is adjusted to the limiting heating power (ST14). On the other hand, when the internal temperature Th becomes lower than the set upper limit temperature T1 again (No in the step of ST16), the heating power of the grill burner 31 is returned to the original set heating power (ST19).

As described above, according to the heating cooker 1, a heating abnormality (no pot, overheating) of the object to be heated is detected by an abnormality detecting means such as a pot detection sensor 27 and a pot bottom temperature sensor 23 during automatic cooking, and the burner 21 , 31 Even if the thermal power of the burners 21 and 31 is limited to a predetermined value or less, the burners 21 and 31 in the automatic cooking operation after the heating restriction are based on the operating time (correction time E1 and E2) of the burners 21 and 31 during the limited period. Since the operating time (set heating time S1) is automatically corrected, it is difficult for the actual heating state of the object to be heated to deviate from the set heating conditions. Therefore, it is possible to maintain a high degree of perfection of cooking by automatic cooking.

In addition, the user does not have to manually reset the thermal power and operating time of the burners 21 and 31, and the user does not have to judge the thermal power and operating time of the burners 21 and 31 after the heating is restricted. Is good, and variations in the finished state of cooking are unlikely to occur.

Further, according to the heating cooker 1, if a heating abnormality of the object to be heated is detected during automatic cooking and the operating time (set heating time S1) of the burners 21 and 31 is extended and corrected, the extension is corrected. Since the information display unit 41 displays the remaining cooking time calculated from the set cooking time S1, the usability is further improved.

In the above embodiment, when the heating restriction operation is performed during the automatic cooking, the set cooking time S1 is extended and corrected. However, the thermal power of the burners 21 and 31 in the automatic cooking operation after the heating restriction is used. It may be configured to be calculated based on the measurement time of the limit timer and to be increased and corrected, or the set cooking time S1 and the thermal powers of the burners 21 and 31 in the automatic cooking operation after the heating limit are measured by the limit timer, respectively. It may be configured to be calculated and corrected based on time.

Further, in the above embodiment, when the heating limiting operation is performed during automatic cooking, the set cooking time S1 is extended and corrected based on the measurement time of the limiting timer. However, the measurement time and heating of the limiting timer have been described. The required remaining heating amount (insufficient heat amount) is calculated based on the set thermal power of the burners 21 and 31 during the limited operation, and the later set cooking time S1 or the thermal power of the burners 21 and 31 is calculated according to the insufficient heat amount. It may be configured to correct one or both.

Further, in the above embodiment, when the heating limiting operation is performed during the automatic cooking operation, the set cooking time S1 is extended and corrected based on the measurement time of the limiting timer. When the heating restriction operation is performed during the cooking operation, the automatic cooking time measurement by the cooking timer is interrupted, and when the heating restriction is released, the automatic cooking time measurement by the cooking timer is continued again. That is, when the heating restriction operation is performed during the automatic cooking operation, the measurement of the automatic cooking time by the cooking timer is interrupted, and the operating time of the controller 21 in the automatic cooking operation is extended and corrected by the interruption time. It may be configured in.

Further, in the above embodiment, if the pot bottom temperature Th becomes lower than the set upper limit temperature T1 again after the start of the heating restriction operation, the heating power of the corresponding stove burner 21 is returned to the original set heating power and automatic cooking is continued. However, if the pot bottom temperature Th becomes lower than the set upper limit temperature T1 again after the start of the heating limiting operation, the automatic cooking is continued while maintaining the heating power of the corresponding stove burner 21 at the limiting heating power. It may be configured as follows. As a result, even if the automatic cooking operation is started again after the bottom of the cooking container is in a temperature state where it is likely to be scorched and the heating limiting function is activated, the scorching can be suppressed.

Further, in the above embodiment, if the pot bottom temperature Th reaches the set upper limit temperature T1 after the start of the automatic cooking operation, the heating power of the corresponding controller 21 is adjusted to the limiting heating power, while the pot bottom temperature Th is set again to the set upper limit temperature. We have described what is configured to return the thermal power of the corresponding controller 21 to the original set thermal power when it becomes lower than T1, but if the pot bottom temperature Th reaches the set upper limit temperature T1 after the start of the automatic cooking operation, It is configured to ignite the corresponding control burner 21 when the pot bottom temperature Th becomes lower than the set upper limit temperature T1 again when "no pot" is not detected while extinguishing the corresponding control burner 21. May be.

In this case, for example, when the output heat amount of the set thermal power is Q and the operation stop time measured by the limiting timer is C3, the cooking container has not been heated for C3 hours, so that the heating limiting operation is never performed. The amount of heat for Q × C3 is insufficient for the total amount of heat for automatic cooking. Therefore, the correction time E1 = C3 when there is no pot. Alternatively, the time obtained by subtracting a predetermined value from C3, that is, E1 = C3-A (however, 0 <A <C3) is set in consideration of the amount of heat accumulated in the cooking container during heating.

Further, in the case where the stove burner 21 is configured to extinguish the fire according to the pot bottom temperature Th as described above, the stove burner 21 after reignition is also configured to maintain the thermal power at the limit thermal power. good.

In this case, for example, when the output heat amount of the set heat power is Q, the output heat amount of the limit heat power is q, the operation stop time measured by the limit timer is C4, and the remaining time of automatic cooking after reignition is C5, cooking is performed. The container has not been heated for C4 hours, and is then heated for C5 hours at the output heat amount q at the limit heating power. Therefore, the amount of heat for Q × C4 and the amount of heat for (Qq) × C5 are insufficient with respect to the total amount of heat during automatic cooking when the heating restriction operation is never performed. Therefore, the correction time E1 = Q × C4 / q + (Q−q) × C5 / q when there is no pan.

In the above embodiment, a burner using the combustion exhaust gas of gas as a heat source is used as the heating means for heating the object to be heated, but instead of the burner, radiant heat or conduction heat from the electric heating unit is used. An electric heater for heating the object to be heated may be used, or an electromagnetic induction heater for heating the object to be heated by electromagnetic induction may be used. Further, a burner, an electric heater, and an electromagnetic induction heater may be used in combination.

1 Cooking cooker 21 stove (heating means)
23 Pot bottom temperature sensor (abnormality detection means)
27 Pot detection sensor (abnormality detection means)
31 Grill burner (heating means)
33 Internal temperature sensor (abnormality detection means)
50 control circuit

Claims (1)

A heating cooker including a heating means for heating an object to be heated and a control means for an automatic cooking operation for adjusting the output heat amount and operating time of the heating means based on a predetermined heating control sequence.
A temperature detecting means for detecting the temperature state of the object to be heated,
When the detection temperature of the temperature detecting means exceeds a predetermined temperature, the output heat amount of the heating means is limited to a limited output heat amount smaller than the set output heat amount at the time when the detection temperature becomes a predetermined temperature or more, and heating is continued. Control means of heating restriction operation and
When the heating limiting operation is executed during the automatic cooking operation, the heating means in the automatic cooking operation after the heating limitation is determined according to the limited output heat amount of the heating means during the heating limiting operation and the degree of heating limiting based on the limited operating time. e Bei and correction control means for correcting at least one of heat output or operating time,
The control means for the heating limiting operation limits the output heat amount of the heating means to the limited output heat amount, and when the detection temperature of the temperature detecting means falls below a predetermined temperature, the output heat amount of the heating means is maintained at the limited output heat amount and automatically. A heating cooker that keeps cooking going.

Images