Heating cooker

Abstract

To enhance user satisfaction for a heating cooker capable of heating and cooking a cooking object by setting a temperature.SOLUTION: A heating condition input section 39 includes: temperature setting instruction units 41e and 41f which input a set instruction temperature, which is a target heating temperature for a cooking object, by incrementing or decrementing a temperature at a first temperature interval; and corrected temperature setting instruction units 43a and 43b which input a corrected set instruction temperature by incrementing or decrementing the input set instruction temperature at a second temperature interval narrower than the first temperature interval. After the set instruction temperature is input, when the corrected set instruction temperature is further input, a control section 12 activates heating sections 31 and 32 so that a cooking container temperature detected by a temperature detection section 31a becomes a corrected cooking container target temperature corresponding to the corrected set instruction temperature.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a cooking appliance.

Background Art

[0002] There is a cooking appliance that includes heating means for heating a cooking container that houses a cooking item, and temperature detection means for detecting the temperature of the cooking container, and controls the operation of the heating means based on the temperature of the cooking container detected by the temperature detection means so that the temperature of the cooking item becomes a set temperature input by the user (for example, Patent Document 1).

[0003] By the way, not only the difference in thermal conductivity and heat capacity due to the material, size, thickness, etc. of the cooking container, but also the difference in the amount of the cooking item in the cooking container cause the temperature of the cooking item and the temperature of the cooking container to differ. Therefore, in the cooking appliance as described above, generally, correlation data between the temperature of the cooking container and the temperature of the cooking item when heating and cooking a specific amount of the cooking item in a specific recommended cooking container recommended by the manufacturer of the cooking appliance is acquired in advance. When the user inputs the temperature of the cooking item and heating and cooking is performed, the operation of the heating means is controlled so that the temperature of the cooking container detected by the temperature detection means becomes the temperature of the cooking container corresponding to the temperature of the cooking item set based on the correlation data.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, users often use cooking containers different from the recommended ones or put different amounts of ingredients into the cooking containers than the specified amounts, and then perform heat cooking. Therefore, when heat cooking is performed as described above, even if the cooking container temperature corresponding to the temperature of the ingredients, which is set based on the case of heat cooking a specific amount of ingredients in the recommended cooking container, is detected by the temperature detection means, the actual temperature of the ingredients may deviate from the temperature desired by the user. In a heat cooker in which the user inputs the temperature of the ingredients to be heat-cooked, setting means for inputting the temperature at a certain temperature interval is provided, but the temperature interval is set wide so as to cope with various heat cookings. As a result, there is a problem that the ingredients cannot be heat-cooked at the temperature desired by the user and the user cannot be satisfied with the result of the cooking.

[0006] The present invention solves the above problems, and an object of the present invention is to provide a heat cooker capable of performing heat cooking with high user satisfaction.

Means for Solving the Problems

[0007] According to a first aspect of the present technology, a heating unit that heats a cooking container containing ingredients, a temperature detection unit that detects the temperature of the cooking container, a heating condition input unit that inputs heating conditions, a control unit, and a heat cooker comprising: The heating condition input unit includes a temperature setting instruction unit that inputs a set instruction temperature, which is the target heating temperature of the ingredients, by increasing or decreasing it at a first temperature interval, and a correction temperature setting instruction unit that inputs a corrected set instruction temperature by increasing or decreasing the set instruction temperature input by the temperature setting instruction unit at a second temperature interval narrower than the first temperature interval, When the set instruction temperature is input by the temperature setting instruction unit, the control unit operates the heating unit so that the temperature of the cooking container detected by the temperature detection unit becomes the target temperature of the cooking container corresponding to the set instruction temperature, After the set instruction temperature is input by the temperature setting instruction unit, it is determined whether a corrected set instruction temperature for increasing or decreasing the set instruction temperature is input by the correction temperature setting instruction unit, When a correction setting instruction temperature is input by a correction temperature setting instruction unit, a heating cooker is provided that operates a heating unit so that the temperature of the cooking container detected by a temperature detection unit becomes a corrected cooking container target temperature corresponding to the correction setting instruction temperature.

[0008] According to the first aspect, when it is determined that the temperature of the food deviates from the set instruction temperature according to the state of the food and the situation of the heating cooking such as the result of the food, the user can finely adjust the set instruction temperature. Thereby, when heating and cooking the food at the set instruction temperature, the food can be heated and cooked under appropriate heating conditions according to the cooking container used by the user and the amount of the food, so that the user satisfaction can be improved.

[0009] According to the second aspect of the present technology, in the first aspect, a storage unit that stores the history of the heating conditions input by the heating condition input unit is provided, the history of the heating conditions includes the history of the set instruction temperature input by the temperature setting instruction unit and the history of the correction conditions when the set instruction temperature is incrementally corrected or decrementally corrected to the correction setting instruction temperature by the correction temperature setting instruction unit, When a set instruction temperature is input by the temperature setting instruction unit, the control unit determines whether the same set instruction temperature as the set instruction temperature input by the temperature setting instruction unit in the current heating cooking is input by the temperature setting instruction unit in the past heating cooking stored in the storage unit, If the same set instruction temperature as the set instruction temperature input by the temperature setting instruction unit in the current heating cooking is input by the temperature setting instruction unit in the past heating cooking stored in the storage unit, the set instruction temperature of the current heating cooking is incrementally corrected or decremented based on the correction conditions when the same set instruction temperature was input by the temperature setting instruction unit in the past heating cooking, and the correction setting instruction temperature is set, The heating unit is operated so that the temperature of the cooking container detected by the temperature detection unit becomes a corrected cooking container target temperature corresponding to the set correction setting instruction temperature.

[0010] When performing the same cooking, users often use the same cooking appliance and the same set target temperature. Therefore, according to the second aspect described above, when a set target temperature is input in the temperature setting instruction unit, a corrected set target temperature obtained by increasing or decreasing the set target temperature in the current cooking based on the correction conditions when the same set target temperature was input in past cooking is set. Thus, the food can be cooked at a temperature according to the user's preference. Further, according to the second aspect described above, since the corrected set target temperature is set without the user inputting an increase or decrease correction of the set target temperature in the correction temperature setting instruction unit, it is not necessary for the user to input a corrected set target temperature while observing the cooking situation, and convenience can be improved.

[0011] According to the third aspect of the present technology, in the first or second aspect described above, a storage unit is provided that stores the history of the heating conditions of the heating unit input in the heating condition input unit, the history of the heating conditions includes the history of the set target temperature input in the temperature setting instruction unit and the history of the correction conditions when the set target temperature is increased or decreased to the corrected set target temperature in the correction temperature setting instruction unit, when a set target temperature is input in the temperature setting instruction unit, the control unit determines whether the same set target temperature as the set target temperature input in the temperature setting instruction unit in the current cooking is input in the temperature setting instruction unit in a past cooking stored in the storage unit, if the same set target temperature as the set target temperature input in the temperature setting instruction unit in the current cooking is not input in the temperature setting instruction unit in a past cooking stored in the storage unit, the set target temperature in the current cooking is increased or decreased based on the correction conditions when different set target temperatures were input in the temperature setting instruction unit in past cooking to set a corrected set target temperature, and the heating unit is operated so that the cooking container temperature detected by the temperature detection unit becomes a corrected cooking container target temperature corresponding to the set corrected set target temperature.

[0012] When using a cooking container different from the recommended cooking container, even if the set target temperature is different, if the cooking container is the same, the temperature difference between the set target temperature and the actual temperature of the food to be cooked is likely to fall within a certain temperature range. Therefore, according to the above-described third aspect, even when the set target temperature is input by the temperature setting instruction unit and the same set target temperature has not been input in past heating cooking, based on the correction conditions when different set target temperatures were input in past heating cooking, a corrected set target temperature obtained by increasing or decreasing the set target temperature in the current heating cooking is set. Thus, the food to be cooked can be heated at a temperature according to the user's preference. Also, according to the above-described third aspect, since the corrected set target temperature is set without the user inputting an increase or decrease correction of the set target temperature at the correction temperature setting instruction unit, it is not necessary for the user to input the corrected set target temperature while observing the situation of the heating cooking, and the convenience can be improved.

[0013] According to a fourth aspect of the present technology, in the third aspect described above, the control unit increases or decreases the set target temperature of the current heating cooking based on the correction condition when the set target temperature closest to the set target temperature input by the temperature setting instruction unit in the current heating cooking was input among one or more different set target temperatures input by the temperature setting instruction unit in past heating cooking, or based on the average correction condition when a plurality of different set target temperatures were input in past heating cooking, and sets a corrected set target temperature.

[0014] According to the above-described fourth aspect, even when the set target temperature is input by the temperature setting instruction unit and the same set target temperature has not been input in past heating cooking, based on the correction condition when the set target temperature closest to the set target temperature input in the current heating cooking was input among one or more different set target temperatures input in past heating cooking, or based on the average correction condition when a plurality of different set target temperatures were input in past heating cooking, a corrected set target temperature obtained by increasing or decreasing the set target temperature of the current heating cooking is set. Thus, the food to be cooked can be heated at a temperature according to the user's preference.

[0015] According to the fifth aspect of the present technology, in the second or third aspect described above, it includes a reset unit that erases the history of the heating conditions stored in the storage unit.

[0016] According to the fifth aspect described above, since the past heating conditions can be initialized, convenience can be improved.

[0017] According to the sixth aspect of the present technology, in any one of the first to fifth aspects described above, after the first set instruction temperature is input by the temperature setting instruction unit, the control unit determines whether a first corrected set instruction temperature for incrementally correcting the first set instruction temperature is input by the correction temperature setting instruction unit. When the first corrected set instruction temperature for incrementally correcting the first set instruction temperature is input by the correction temperature setting instruction unit, the first corrected set instruction temperature can be input from the first set instruction temperature to the increment correction allowable temperature lower than the second set instruction temperature, which is higher by the first temperature interval, or if the second set instruction temperature is decrementally corrected, the first corrected set instruction temperature can be input to the increment correction allowable temperature lower than the second corrected set instruction temperature obtained by decrementally correcting the second set instruction temperature. When the first corrected set instruction temperature is input by the correction temperature setting instruction unit, the heating unit is operated so that the cooking container temperature detected by the temperature detection unit becomes the first corrected cooking container target temperature corresponding to the first corrected set instruction temperature.

[0018] According to the above sixth aspect, when incrementally correcting the first set target temperature, since the first corrected set target temperature incrementally corrected from the first set target temperature by the first temperature interval to the incremental correction allowable temperature lower than the higher second set target temperature can be input, when finely adjusting the first set target temperature by incremental correction, reversal between the first corrected set target temperature and the second set target temperature can be prevented. Further, according to the above sixth aspect, when incrementally correcting the first set target temperature, if the second set target temperature at a higher temperature is decrementally corrected by the first temperature interval from the first set target temperature, since the first corrected set target temperature incrementally corrected to the incremental correction allowable temperature lower than the second corrected set target temperature obtained by decrementally correcting the second set target temperature can be input, when finely adjusting the first set target temperature by incremental correction, reversal between the first corrected set target temperature and the second corrected set target temperature obtained by decrementally correcting the second set target temperature can be prevented.

[0019] According to the seventh aspect of the present technology, in any one of the above first to sixth aspects, after the first set target temperature is input by the temperature setting instruction unit, the control unit determines whether a first corrected set target temperature for decrementally correcting the first set target temperature is input by the correction temperature setting instruction unit. When the first corrected set target temperature for decrementally correcting the first set target temperature is input by the correction temperature setting instruction unit, the first corrected set target temperature is made inputtable from the first set target temperature by the first temperature interval to the decremental correction allowable temperature higher than the lower third set target temperature, or if the third set target temperature is incrementally corrected, the first corrected set target temperature is made inputtable to the decremental correction allowable temperature higher than the third corrected set target temperature obtained by incrementally correcting the third set target temperature. When the first corrected set target temperature is input by the correction temperature setting instruction unit, the heating unit is operated so that the cooking container temperature detected by the temperature detection unit becomes the first corrected cooking container target temperature corresponding to the first corrected set target temperature.

[0020] According to the seventh aspect described above, when performing a subtractive correction on the first set target temperature, since it is possible to input the first corrected set target temperature obtained by performing a subtractive correction from the first set target temperature by the first temperature interval up to a subtractive correction allowable temperature higher than the low-temperature third set target temperature, when finely adjusting the first set target temperature by subtractive correction, it is possible to prevent reversal between the first corrected set target temperature and the third set target temperature. Further, according to the seventh aspect described above, when performing a subtractive correction on the first set target temperature, if the low-temperature third set target temperature has been additively corrected by the first temperature interval from the first set target temperature, since it is possible to input the first corrected set target temperature obtained by performing a subtractive correction from the first set target temperature by the first temperature interval up to a subtractive correction allowable temperature higher than the third corrected set target temperature obtained by additively correcting the third set target temperature, when finely adjusting the first set target temperature by subtractive correction, it is possible to prevent reversal between the first corrected set target temperature and the third corrected set target temperature obtained by additively correcting the third set target temperature.

[0021] According to the eighth aspect of the present technology, in any one of the second to seventh aspects described above, The storage unit stores the history of the heating conditions of the heating unit input by the heating condition input unit for each cooking container.

[0022] According to the eighth aspect described above, since it is possible to heat-cook the food at an appropriate temperature for each cooking container owned by the user, it is possible to further improve the user's satisfaction.

Brief Description of the Drawings

[0023]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

BEST MODE FOR CARRYING OUT THE INVENTION

[0024] (Embodiment 1) Hereinafter, the cooking appliance of the present embodiment will be described with reference to the drawings. FIG. 1 is a schematic perspective view of the cooking appliance of the present embodiment. On the top plate 30 of the stove body 3, there are a cooking grate 35, 36 and annular left and right stove burners 31, 32 (hereinafter, when each stove burner is meant, it is referred to as "left stove burner 31" and "right stove burner 32"), and an opening / closing door 21 of the grill compartment 2 is disposed at the center of the front surface of the stove body 3. In this specification, the side where the user operates the cooking appliance is defined as the front side, the depth direction when the cooking appliance is viewed from the front side is defined as the front-rear direction, the width direction is defined as the left-right direction, and the height direction is defined as the up-down direction.

[0025] In the central portions of the left and right stove burners 31 and 32, temperature sensors (temperature detection units) 31a and 32a are provided which contact the bottom of the cooking container P (see FIG. 3) placed on the cooking plates 35 and 36 to detect the temperature of the cooking container P. The temperature sensors 31a and 32a are supported within the stove main body 3 so as to be movable up and down. In a state without a pan where the cooking container P is not placed on the cooking plates 35 and 36, they protrude to a position higher than the cooking plates 35 and 36, and in a state with a pan where the cooking container P is placed on the cooking plates 35 and 36, they are configured to be pushed down by receiving the load of the cooking container P. Further, an ignition electrode 31b, 32b and a thermocouple 31c, 32c are respectively disposed at positions near the flame holes of the left and right stove burners 31 and 32. The temperature sensors 31a and 32a, the ignition electrodes 31b and 32b, and the thermocouples 31c and 32c are connected to a controller 12 described later. The temperature sensors 31a and 32a output a signal corresponding to the temperature detected in the contact state to the controller 12 as a signal indicating the cooking container temperature of the cooking container P.

[0026] On the stove operation unit 22 located on the right side of the opening and closing door 21 of the grill compartment 2, a power switch 29 and ignition and extinguishing switches 24 and 25 having both the ignition and extinguishing and the heating power adjustment functions for each of the stove burners 31 and 32 are disposed. On the grill operation unit 23 located on the left side of the opening and closing door 21 of the grill compartment 2, an ignition and extinguishing switch 26 having both the ignition and extinguishing and the heating power adjustment functions for a grill burner (not shown) is disposed. The ignition and extinguishing switches 24, 25, and 26 are each configured to change between two states: a used state protruding by repeating a pushing operation and a non - used state flush with the stove operation unit 22 or the grill operation unit 23. Further, a speaker 27 is built in the stove operation unit 22 adjacent to the power switch 29. Furthermore, below the ignition and extinguishing switches 24 and 25, an operation panel (heating condition input unit) 39 for inputting heating conditions for performing various cookings with each of the stove burners 31 and 32 shown in FIG. 2 is provided.

[0027] The operation panel 39 includes dedicated operation units 41 and 42 for the left and right stove burners 31 and 32 respectively, and an operation unit 43 shared by the left and right stove burners 31 and 32. Each of the operation units 41 and 42 is provided with boiling switches 41a and 42a for automatic fire extinguishing during boiling, timer switches 41b and 42b for the timer setting mode, temperature cooking switches 41c and 42c for the temperature setting mode, and the like.

[0028] In addition, each of the dedicated operation units 41 and 42 is provided with display units 41d and 42d for displaying the set instruction time and set instruction temperature set by the operation units 41 and 42, up switches 41e and 42e, and down switches 41f and 42f. These up and down switches 41e, 41f, 42e, and 42f are operated when the temperature cooking switches 41c and 42c are turned on, so that the user can increase or decrease the set instruction temperature within a predetermined temperature range (for example, 130°C to 220°C) at a predetermined first temperature interval (for example, ±10°C) to input the desired set instruction temperature. Therefore, in the present embodiment, the up and down switches 41e, 41f, 42e, and 42f constitute a temperature setting instruction unit. Note that when the timer switches 41b and 42b are turned on, similarly, the up and down switches 41e, 41f, 42e, and 42f are operated so that the user can increase or decrease the set instruction time at a predetermined time interval (for example, ±1 minute) to input the desired set instruction time.

[0029] The common operation unit 43 is provided with an increase switch 43a and a decrease switch 43b. After the set instruction temperature is input as described above, these increase and decrease switches 43a and 43b are operated by the user to perform addition correction or subtraction correction on the set instruction temperature at a predetermined second temperature interval (a temperature interval narrower than the first temperature interval, for example, ±2°C) to input a desired corrected set instruction temperature. Also, when the increase and decrease switches 43a and 43b are operated simultaneously, the history of the heating conditions in past heat cooking stored in the storage unit 15 described later is erased. Therefore, in the present embodiment, the increase and decrease switches 43a and 43b constitute a correction temperature setting instruction unit and a reset unit. Note that a reset switch may be provided separately from the increase and decrease switches 43a and 43b.

[0030] Figure 3 is a circuit diagram of the left burner 31. Since the right burner 32 also has a similar circuit, the description of the right burner 32 will be omitted, and hereinafter, mainly the configuration of the left burner 31 and the operation when heat cooking is performed with the left burner 31 will be described. As shown in Figure 3, a gas supply pipe 100 for supplying fuel gas is connected to the left burner 31, and a main solenoid valve 4 and a flow rate adjustment valve 5 are interposed in the gas supply pipe 100. Note that the flow rate adjustment valve 5 is a conventionally known electric valve, and by changing the opening degree of the flow rate adjustment valve 5 via a stepping motor 14, the level of the heating power of the burner 32 can be switched in 11 steps from "1" (minimum) to "11" (maximum).

[0031] FIG. 4 is a graph showing the correlation between the set instruction temperature, the temperature of the actual food to be cooked, and the temperature of the cooking container detected by the temperature sensor 31a when using cooking containers of different materials in the left burner 31 of the cooking appliance according to the present embodiment. In the figure, the solid line (a) represents the temperature change (left axis) of tempura oil when heating a specific amount of tempura oil in the recommended iron cooking container recommended by the manufacturer, the dashed-dotted line (b) represents the temperature change (left axis) of tempura oil when heating the same amount of tempura oil in an aluminum cooking container of the same size as the recommended cooking container, the double-dashed-dotted line (c) represents the temperature change (left axis) of tempura oil when heating the same amount of tempura oil in a enamel cooking container of the same size as the recommended cooking container, and the broken line (d) represents the temperature change (right axis) of the cooking container when heating a specific amount of tempura oil in the above-mentioned recommended iron cooking container. In this cooking appliance, the set instruction temperature when heating tempura oil and the corresponding target temperature of the cooking container are set based on the correlation data when heating a specific amount of tempura oil in the recommended cooking container.

[0032] As shown in FIG. 4, since the food to be cooked in the cooking container is heated through the cooking container, the temperature of the food to be cooked is lower than the temperature of the cooking container. Therefore, the target temperature of the cooking container corresponding to the set instruction temperature, which is the target heating temperature of the food to be cooked, is set higher than the set instruction temperature. For example, when the set instruction temperature, which is the target heating temperature of the food to be cooked, is 180°C, in the recommended cooking container, the target temperature of the cooking container is set to 188°C, and the heating power of the burner 31 is controlled so that the temperature of the cooking container detected by the temperature sensor 31a becomes the target temperature of the cooking container.

[0033] However, as described above, since the thermal conductivity and heat capacity vary depending on the material, size, thickness, etc. of the cooking container, the temperature of the food when the target temperature of the cooking container corresponding to the set instruction temperature is detected by the temperature sensor 31a will differ between the recommended cooking container and other cooking containers. For example, when the same set instruction temperature as above is 180°C, the temperature of the food in an aluminum cooking container is about 174°C, and the temperature of the food in a ceramic cooking container is about 186°C. As a result, even if the target temperature of the cooking container corresponding to the set instruction temperature is detected by the temperature sensor 31a, when different cooking containers are used, the temperature of the food in the cooking container may be higher or lower than the set instruction temperature. Also, although not shown, the temperature of the food may also vary depending on the amount of the food. When the actual temperature of the food deviates from the set instruction temperature in this way, for example, a user observing the situation of heat cooking such as the floating when removing the batter to check the temperature of tempura oil or the foaming when inserting a cooking chopstick is likely to feel a sense of discomfort with the set instruction temperature. Also, when a temperature difference occurs between the set instruction temperature and the actual temperature of the food, the food cannot be heat-cooked at the set instruction temperature desired by the user, and the heating of the food may be insufficient or the food may be overheated, resulting in the user not being satisfied with the outcome of the cooking. For this reason, in the present embodiment, when the user recognizes that there is a temperature difference between the set instruction temperature and the temperature of the food when setting and heat-cooking the temperature of the food, it is possible to input a corrected set instruction temperature that is incrementally corrected or decrementally corrected (for example, when the above set instruction temperature is 180°C, correct the set instruction temperature to about 186°C for an aluminum cooking container and correct the set instruction temperature to about 174°C for a ceramic cooking container), and the heating power of the left burner 31 is controlled so that the temperature of the cooking container detected by the temperature sensor 31a becomes the corrected target temperature of the cooking container corresponding to the input corrected set instruction temperature.

[0034] Also, as shown in FIG. 4, it can be seen that even when the set target temperature is different, the temperature difference between the temperature of the food when using the recommended cooking container and the temperature of the food when using a cooking container other than the recommended cooking container falls within a certain temperature range. Therefore, in the present embodiment, if a corrected set target temperature obtained by increasing or decreasing the set target temperature in past heat cooking is set, based on the correction conditions, a corrected set target temperature obtained by increasing or decreasing the set target temperature in the current heat cooking is set, and the heating power of the left burner 31 is controlled so that the temperature of the cooking container detected by the temperature sensor 31a becomes the corrected cooking container target temperature corresponding to the set corrected set target temperature.

[0035] Returning to FIG. 3, the controller 12 is an electronic circuit unit including a microcomputer and various interface circuits. The controller 12 is connected via electrical wiring to the original electromagnetic valve 4, the stepping motor 14, the ignition and extinguishing switch 24, the speaker 17, the temperature sensor 31a, the ignition electrode 31b, the thermocouple 31c, the operation panel 39, and the like.

[0036] This controller 12 executes a predetermined control process in response to an operation signal input from the ignition and extinguishing switch 24, an operation signal input from the operation panel 39, a detection signal input from various sensors, etc., thereby controlling the operation of an igniter (not shown), the original electromagnetic valve 4 and the stepping motor 14, the display on the display unit 41d of the operation panel 39, and the notification from the speaker 17. The controller 12 also includes a storage unit 15 constituted by a ROM, a RAM, etc. The storage unit 15 stores various processing programs, various set values, display data and voice data, heating condition data for executing heat cooking, correlation data between the set target temperature and the cooking container target temperature when using the recommended cooking container described above, and the history of heating conditions in past heat cooking to be described later.

[0037] Although not shown, when the user presses the ignition and extinguishing switch 24 with the cooking container P placed on the cooking grate 35, the controller 12, as a functional configuration means, opens the main solenoid valve 4 and drives the stepping motor 14 to adjust the opening degree of the flow rate adjustment valve 5 so that the gas supply flow rate is at a predetermined ignition firing power, activates the ignition electrode 31b, performs an ignition process, and when the user presses the ignition and extinguishing switch 24 during extinguishing, closes the main solenoid valve 4 and performs an extinguishing process, an ignition and extinguishing control unit; during the combustion of the left cooking burner 31, according to the user's operation on the ignition and extinguishing switch 24 or the user's operation on the operation panel 39, drives the stepping motor 14 to adjust the opening degree of the flow rate adjustment valve 5 and controls the firing power of the left cooking burner 31, a firing power control unit; a correction operation determination unit that determines whether the higher and lower switches 43a and 43b of the operation panel 39 have been operated after the temperature cooking switch 41c on the operation panel 39 is turned on and the up and down switches 41e and 41f are operated to input a set instruction temperature; a set instruction temperature history determination unit that determines whether the same set instruction temperature has been input in the past heating cooking stored in the storage unit 15 when the set instruction temperature is input in the current heating cooking; a correction condition history determination unit that determines whether the set instruction temperature has been increased or decreased in the past heating cooking when the same set instruction temperature has been input in the past heating cooking; a target temperature setting unit that sets a cooking container target temperature corresponding to the input set instruction temperature based on correlation data when there is no history of increase or decrease correction for any set instruction temperature in the past heating cooking; a first corrected target temperature setting unit that sets a corrected set instruction temperature based on the same correction condition as the correction condition when the same set instruction temperature was input in the past heating cooking and sets a corrected cooking container target temperature corresponding to the corrected set instruction temperature based on the correlation data when the same set instruction temperature as the set instruction temperature input in the current heating cooking was input in the past heating cooking and the same set instruction temperature was increased or decreased in the past heating cooking; when the same set instruction temperature as the set instruction temperature input in the current heating cooking has not been input in the past heating cooking but one or more different set instruction temperatures input in the past heating cooking have been increased or decreased,When the set command temperature closest to the current set command temperature is input, a corrected set command temperature is set based on the same correction conditions as those for the correction conditions, and a second corrected target temperature setting unit that sets a corrected cooking container target temperature corresponding to the corrected set command temperature based on correlation data; when there is no history of either positive correction or negative correction at any set command temperature in past heating cooking, when a set command temperature is input, a positive correction allowable temperature lower than the high-temperature side adjacent set command temperature (second set command temperature) is set by the first temperature interval from the set command temperature, and a negative correction allowable temperature higher than the low-temperature side adjacent set command temperature (third set command temperature) is set by the first temperature interval from the set command temperature. A correction allowable temperature setting unit; when there is no history of either positive correction or negative correction at any set command temperature in past heating cooking, after a set command temperature is input, when a corrected set command temperature for increasing the set command temperature by operating the up switch 43a is input, whether the corrected set command temperature is less than or equal to the positive correction allowable temperature, or when a corrected set command temperature for decreasing the set command temperature by operating the down switch 43b is input, if the corrected set command temperature is greater than or equal to the negative correction allowable temperature, an input is accepted, and a corrected target temperature setting unit that sets a corrected cooking container target temperature corresponding to the corrected set command temperature based on correlation data; when there is no history of either positive correction or negative correction at any set command temperature in past heating cooking, after a set command temperature is input, when a corrected set command temperature for increasing the set command temperature by operating the up switch 43a is input, if the corrected set command temperature is higher than the positive correction allowable temperature, or when a corrected set command temperature for decreasing the set command temperature by operating the down switch 43b is input, if the corrected set command temperature is lower than the negative correction allowable temperature, a correction input rejection unit that rejects the input, a display control unit that controls the display of the display units 41d and 42d, a notification control unit that controls the notification of audio information from the speaker 17, and a history registration unit that registers heating conditions including the input set command temperature and the final correction conditions in the storage unit 15 at the end of heating cooking. Therefore, in the present embodiment, the controller 12 functions as a control unit.,

[0038] Next, with reference to the flowcharts of FIGS. 5 to 6, the control operation when cooking is performed using the left burner 31 of the cooking heater according to the present embodiment will be described. The same applies to the right burner 32.

[0039] When the power supply to the cooking heater is on, the user places the cooking container P on the left burner 31 and turns on the ignition / extinguishing switch 24 (Yes in step S1), the left burner 31 is ignited. Next, when the user turns on the temperature cooking switch 41c, the initial set instruction temperature (for example, 130°C) is displayed on the display unit 41d. Further, when the user operates the up and down switches 41e and 41f and the set instruction temperature Ta desired by the user (for example, 180°C) is input, the set instruction temperature Ta is displayed on the display unit 41d (steps S2 to S3). Note that after the set instruction temperature Ta is input, the left burner 31 may be ignited.

[0040] Then, the controller 12 determines whether the same set instruction temperature Ta as the input set instruction temperature Ta was input in the past heating cooking stored in the storage unit 15, or whether the set instruction temperature Ta was incrementally corrected or decrementally corrected in the past heating cooking (steps S4 to S5).

[0041] At this time, when the same set instruction temperature Ta as the set instruction temperature Ta input in the current cooking has been input in past cooking and the set instruction temperature Ta has been increased or decreased in past cooking (Yes in steps S4 and S5), the controller 12 corrects the set instruction temperature Ta of the current cooking by increasing or decreasing it based on the same correction conditions as the correction conditions when the same set instruction temperature Ta was input in past cooking, and sets a corrected set instruction temperature Th. Then, based on the correlation data, the controller 12 sets a corrected cooking container target temperature Tt corresponding to the corrected set instruction temperature Th (step S10). Then, during cooking, the controller 12 performs heating control to repeatedly switch the heating power of the left cooking burner 31 between a predetermined heating power and a low heating power so that the cooking container temperature detected by the temperature sensor 31a becomes the corrected cooking container target temperature Tt (step S11).

[0042] Although not shown, when the cooking container temperature detected by the temperature sensor 31a reaches the corrected cooking container target temperature Tt, the controller 12 gives a predetermined notification from the speaker 27 and blinks the set instruction temperature on the display unit 41d. Thereby, when the same set instruction temperature Ta as the set instruction temperature Ta set in past cooking is input, the food can be cooked under the same heating conditions.

[0043] On the other hand, when the same set instruction temperature Ta as the set instruction temperature Ta input in the current cooking has not been input in past cooking (No in step S4), the controller 12 determines whether different set instruction temperatures Tb input in past cooking have been increased or decreased in the storage unit 15 (steps S15 and S16).

[0044] At this time, if one or more set target temperatures Tb different from the set target temperature Ta input in the current cooking are input in past cooking and these set target temperatures Tb are incrementally corrected or decrementally corrected in past cooking (Yes in steps S15 and S16), based on the correction conditions (for example, the temperature difference between the set target temperature Tb and its corrected set target temperature Th, or the number of operations of the high switch 43a or the low switch 43b) of the set target temperature Tb closest to the set target temperature Ta input in the current cooking, the set target temperature Ta of the current cooking is incrementally corrected or decrementally corrected under the same correction conditions to set the corrected set target temperature Th, and the corrected cooking container target temperature Tt corresponding to the corrected set target temperature Th set based on the correlation data is set (step S10). Then, in the same manner as above, during cooking, the heating power of the left burner 31 is controlled so that the temperature of the cooking container detected by the temperature sensor 31a becomes the corrected cooking container target temperature Tt (step S11). Note that the correction conditions in the above may be equivalent to the correction conditions of the set target temperature Tb closest to the set target temperature Ta input in the current cooking. For example, considering the temperature gradient of the temperature of the cooking container detected by the temperature sensor 31a during cooking, etc., the set target temperature Ta may be incrementally corrected or decrementally corrected under correction conditions approximated to the correction conditions of the closest set target temperature Tb (for example, in the range of 80% to 120% of the temperature difference between the set target temperature Tb and its corrected set target temperature Th). Also, if a plurality of set target temperatures Tb different from the set target temperature Ta input in the current cooking are input in past cooking and the plurality of different set target temperatures Tb are incrementally corrected or decrementally corrected, the set target temperature Ta may be incrementally corrected or decrementally corrected based on the average correction conditions thereof.

[0045] In the case where there is no history of either positive or negative correction at any set target temperature in past cooking, that is, when the same set target temperature Ta as the set target temperature Ta input in the current cooking was input in past cooking, but the set target temperature Ta was not positively or negatively corrected in past cooking (in step S4, Yes; in step S5, No), when one or more different set target temperatures Tb were input in past cooking, but none of the set target temperatures Tb were positively or negatively corrected (in step S15, Yes; in step S16, No), or when the temperature of the food to be cooked is set and cooked for the first time with the left burner 31 (in steps S4 and S15, No), the cooking container target temperature Ts corresponding to the set target temperature Ta is set from the correlation data, and the heating power of the left burner 31 is controlled so that the cooking container temperature detected by the temperature sensor 31a becomes the cooking container target temperature Ts corresponding to the set target temperature Ta (steps S6 to S7). Then, the controller 12 sets a positive correction allowable temperature Tm (for example, 188°C) lower than the high-temperature side adjacent set target temperature (for example, 190°C) by the first temperature interval from the set target temperature Ta input in the current cooking, and sets a negative correction allowable temperature Tn (for example, 172°C) higher than the low-temperature side adjacent set target temperature (for example, 170°C) by the first temperature interval from the input set target temperature Ta (step S8).

[0046] When the augmented correction allowable temperature Tm and the reduced correction allowable temperature Tn are set as described above, the controller 12 monitors the operations of the high switch 43a and the low switch 43b during the heating cooking process (steps S21 and S24). For example, when the cooking container target temperature Ts corresponding to the input set instruction temperature Ta is detected by the temperature sensor 31a and a predetermined notification is given from the speaker 17, if the user recognizes that the temperature of the cooking food is different from the set instruction temperature Ta based on the heating cooking situation, the user operates the high switch 43a or the low switch 43b to input the corrected set instruction temperature Th. Although not shown, at this time, each time the high switch 43a or the low switch 43b is operated, after the corrected set instruction temperature Th obtained by increasing or decreasing the set instruction temperature Ta at the second temperature interval is displayed on the display unit 41d, the original set instruction temperature Ta is displayed on the display unit 41d. Thereby, the user can confirm the acceptance of the input corrected set instruction temperature Th and can recognize the heating cooking of the cooking food at the set instruction temperature Ta close to the user's feeling.

[0047] When the user operates the high switch 43a to augment-correct the set instruction temperature Ta as described above, the input of the corrected set instruction temperature Th for augment-correcting the set instruction temperature Ta up to the set augmented correction allowable temperature Tm or less is permitted (Yes in step S22). When the user operates the low switch 43b to reduce-correct the set instruction temperature Ta, the input of the corrected set instruction temperature Th for reducing-correcting the set instruction temperature Ta up to the set reduced correction allowable temperature Tn or more is permitted (Yes in step S25). Although not shown, at this time, when an augmentation correction exceeding the augmented correction allowable temperature Tm or a reduction correction exceeding the reduced correction allowable temperature Tn is input (No in step S22, No in step S25), the controller 12 rejects the input and causes the speaker 17 to notify that the corrections by the high and low switches 43a and 43b are not accepted and that it is necessary to increase or decrease the set instruction temperature Ta by the up and down switches 41e and 41f.

[0048] When the user operates the high switch 43a or the low switch 43b within the allowable temperature range not exceeding the increased correction allowable temperature Tm or the decreased correction allowable temperature Tn to increase or decrease the set instruction temperature Ta and inputs the corrected set instruction temperature Th (Yes in steps S22 or S25), the controller 12 sets the corrected cooking container target temperature Tt corresponding to the input corrected set instruction temperature Th based on the correlation data (step S23). Then, during the heating cooking, the heating power of the left control burner 31 is controlled so that the cooking container temperature detected by the temperature sensor 31a becomes the corrected cooking container target temperature Tt (step S26). Also, although not shown, when the cooking container temperature detected by the temperature sensor 31a reaches the corrected cooking container target temperature Tt, a predetermined notification is made from the speaker 27 and the set instruction temperature on the display unit 41d blinks.

[0049] After the heating power of the left control burner 31 is controlled so that the cooking container temperature detected by the temperature sensor 31a becomes the cooking container target temperature Ts or the corrected cooking container target temperature Tt as described above, when the heating cooking is completed and the user operates the ignition-off switch 24 to extinguish the left control burner 31 (Yes in step S27, Yes in step S12), the controller 12 registers the heating conditions including the set instruction temperature Ta input in this heating cooking and the final correction conditions (for example, the corrected set instruction temperature Th, the temperature difference between the set instruction temperature Ta and the corrected set instruction temperature Th, the number of operations of the high and low switches 43a, 43b, etc.) in the storage unit 15 (step S28). Thereby, the cooked food can be appropriately heated according to the set instruction temperature input in the next heating cooking. At this time, the heating conditions of this heating cooking may be registered for each cooking container, and the cooking container used by the user at the start of the next heating cooking may be selected by the operation panel 39. Thereby, the cooking container used by the user can be heated under appropriate heating conditions for each cooking container.

[0050] As described in detail above, according to this embodiment, when it is determined that the temperature of the cooked food deviates from the set instruction temperature according to the state of the cooked food or the situation of heat cooking such as the quality of the cooked food, the user can finely adjust the set instruction temperature. Thereby, when heat-cooking the cooked food at the set instruction temperature, the cooked food can be heat-cooked under appropriate heating conditions according to the cooking container used by the user and the amount of the cooked food, so that the user satisfaction can be improved.

[0051] In addition, in the same heat cooking, the user often uses the same cooking container and the same set instruction temperature. However, according to this embodiment, when the set instruction temperature is input in this heat cooking, based on the correction conditions when the same set instruction temperature was input in the past heat cooking, a corrected set instruction temperature obtained by increasing or decreasing the set instruction temperature in this heat cooking is set. Therefore, the cooked food can be heat-cooked at a temperature according to the user's preference.

[0052] In addition, as described above, when a cooking container different from the recommended cooking container is used, even if the set instruction temperatures are different, if the cooking containers are the same, the temperature difference between the set instruction temperature and the actual temperature of the cooked food tends to fall within a certain temperature range. In particular, when the set instruction temperatures are close to each other, the above temperature difference tends to be approximate. For this reason, in this embodiment, based on the correction conditions when the set instruction temperature closest to the set instruction temperature input in this heat cooking was input among one or more different set instruction temperatures input in the past heat cooking, a corrected set instruction temperature obtained by increasing or decreasing the set instruction temperature of this heat cooking is set. Thereby, the cooked food can be heat-cooked at a temperature according to the user's preference. Further, when a plurality of different set instruction temperatures have been corrected in the past heat cooking, if the set instruction temperature of this heat cooking is increased or decreased based on the average correction conditions thereof to set a corrected set instruction temperature, the set instruction temperature can be corrected corresponding to a wide range of set instruction temperatures.

[0053] Further, according to the present embodiment, if the set target temperature has been incrementally corrected or decrementally corrected in past cooking, the corrected set target temperature is set without the user inputting the incremental correction or decremental correction of the set target temperature. Therefore, it is not necessary for the user to input the corrected set target temperature while observing the cooking situation, and the convenience can be improved.

[0054] Further, according to the present embodiment, since the past heating conditions can be initialized, the convenience can be improved.

[0055] Further, according to the present embodiment, when incrementally correcting the set target temperature, it is possible to input a corrected set target temperature obtained by incrementally correcting from the set target temperature by a first temperature interval up to an incremental correction allowable temperature lower than the adjacent set target temperature on the high-temperature side. Therefore, when finely adjusting the set target temperature by incremental correction, it is possible to prevent reversal between the corrected set target temperature and the adjacent set target temperature on the high-temperature side.

[0056] Further, according to the present embodiment, when decrementally correcting the set target temperature, it is possible to input a corrected set target temperature obtained by decrementally correcting from the set target temperature by a first temperature interval up to a decremental correction allowable temperature higher than the adjacent set target temperature on the low-temperature side. Therefore, when finely adjusting the set target temperature by decremental correction, it is possible to prevent reversal between the corrected set target temperature and the adjacent set target temperature on the low-temperature side.

[0057] In addition, in this embodiment, when the set target temperature was incrementally corrected or decrementally corrected in past heat cooking, the set target temperature input in this heat cooking is incrementally corrected or decrementally corrected to set a corrected set target temperature. However, after the corrected set target temperature is set, the user may further incrementally correct or decrementally correct the set corrected set target temperature according to the situation of the heat cooking. Thereby, even when the user starts heat cooking by inputting the same set target temperature as the set target temperature input in past heat cooking in the same type of heat cooking, when it is desired to finely adjust the temperature of the cooked food due to differences such as the type of the cooked food and the amount of the cooked food, heat cooking can be performed at a temperature that matches the user's preference. In this case, similarly to the above, the corrected set target temperature set within a range not exceeding the incremental correction allowable temperature and the decremental correction allowable temperature can be incrementally corrected or decrementally corrected.

[0058] (Embodiment 2) This embodiment is equivalent to Embodiment 1 except that the allowable temperature of the corrected set target temperature that can be input by the user is set based on the history of the heating conditions in past heat cooking. Therefore, the same reference numerals are used for the same configurations, and the description thereof is omitted.

[0059] Although not shown, the controller 12 of the present embodiment has, as functional configuration means, a spot fire extinguishing control unit, a fire power control unit, a correction operation determination unit, a display control unit, a notification control unit, and a history registration unit, in the same manner as in the first embodiment.Further, when the user turns on the temperature cooking switch 41c of the operation panel 39 and operates the up and down switches 41e and 41f to input the set instruction temperature which is the target heating temperature of the cooked food, the controller 12 includes a target temperature setting unit that sets a cooking container target temperature corresponding to the set instruction temperature based on the correlation data of the recommended cooking containers described above stored in the storage unit 15; when the set instruction temperature is input, if the storage unit 15 does not store the history of correction conditions for subtracting and correcting the high-temperature adjacent set instruction temperature (second set instruction temperature) which is higher than the set instruction temperature by the first temperature interval, an increase correction allowable temperature lower than the high-temperature adjacent set instruction temperature, or if the storage unit 15 stores the history of correction conditions for subtracting and correcting the high-temperature adjacent set instruction temperature, an increase correction allowable temperature lower than the corrected set instruction temperature (second corrected set instruction temperature) obtained by subtracting and correcting the high-temperature adjacent set instruction temperature; when the set instruction temperature is input, if the storage unit 15 does not store the history of correction conditions for adding and correcting the low-temperature adjacent set instruction temperature (third set instruction temperature) which is lower than the set instruction temperature by the first temperature interval, a decrease correction allowable temperature higher than the low-temperature adjacent set instruction temperature, or if the storage unit 15 stores the history of correction conditions for adding and correcting the low-temperature adjacent set instruction temperature, a decrease correction allowable temperature higher than the corrected set instruction temperature (third corrected set instruction temperature) obtained by adding and correcting the low-temperature adjacent set instruction temperature; after the set instruction temperature is input, when the high switch 43a is operated and a corrected set instruction temperature for adding and correcting the set instruction temperature is input, if the corrected set instruction temperature is equal to or lower than the increase correction allowable temperature, or when the low switch 43b is operated and a corrected set instruction temperature for subtracting and correcting the set instruction temperature is input, if the corrected set instruction temperature is equal to or higher than the decrease correction allowable temperature, the input is accepted, and a corrected target temperature setting unit that sets a corrected cooking container target temperature corresponding to the corrected set instruction temperature based on the correlation data; after the set instruction temperature is input, when the high switch 43a is operated and a corrected set instruction temperature for adding and correcting the set instruction temperature is input, if the corrected set instruction temperature is higher than the increase correction allowable temperature, or when the low switch 43b is operated and a corrected set instruction temperature for subtracting and correcting the set instruction temperature is input, if the corrected set instruction temperature is lower than the decrease correction allowable temperature, a correction input rejection unit that rejects the input.

[0060] Next, with reference to the flowcharts of FIGS. 7 to 8, the control operation when cooking is performed by the left burner 31 of the cooking heater according to the present embodiment will be described. The same applies to the right burner 32.

[0061] When the user places the cooking container P on the left burner 31 and turns on the ignition / extinguishing switch 24 while the cooking heater is powered on (Yes in step S51), the left burner 31 is ignited. Next, when the user turns on the temperature cooking switch 41c, the initial set instruction temperature (for example, 130°C) is displayed on the display unit 41d. Further, when the user operates the up and down switches 41e and 41f and the set instruction temperature Ta desired by the user (for example, 180°C) is input, the set instruction temperature Ta is displayed on the display unit 41d, and the cooking container target temperature Ts corresponding to the set instruction temperature Ta is set from the correlation data. The heating power of the left burner 31 is controlled so that the cooking container temperature detected by the temperature sensor 31a becomes the cooking container target temperature Ts corresponding to the set instruction temperature Ta (steps S52 to S55).

[0062] When the target temperature Ts of the cooking container is set and the cooking starts, the controller 12 determines whether a corrected set instruction temperature (for example, 188°C) obtained by subtracting and correcting the high-temperature adjacent set instruction temperature Tc on the high-temperature side (for example, 190°C) by the first temperature interval for the set instruction temperature Ta input in this cooking in the past cooking stored in the storage unit 15 is input (step S56). If the corrected set instruction temperature is input (Yes in step S56), the controller 12 sets an increased correction allowable temperature Tm (for example, 186°C) lower than the corrected set instruction temperature (step S57). Further, the controller 12 determines whether a corrected set instruction temperature (for example, 172°C) obtained by adding and correcting the low-temperature adjacent set instruction temperature Td on the low-temperature side (for example, 170°C) by the first temperature interval for the set instruction temperature Ta input in this cooking in the past cooking stored in the storage unit 15 is input (step S58). If the corrected set instruction temperature is input (Yes in step S58), the controller 12 sets an increased correction allowable temperature Tn (for example, 174°C) higher than the corrected set instruction temperature (step S59). Further, when the high-temperature adjacent set instruction temperature on the high-temperature side has not been subtracted and corrected and the low-temperature adjacent set instruction temperature on the low-temperature side has not been added and corrected for the set instruction temperature Ta input in this cooking in the past cooking stored in the storage unit 15 (No in steps S56 and S58), the controller 12 sets an increased correction allowable temperature Tm (for example, 188°C) lower than the high-temperature adjacent set instruction temperature Tc on the high-temperature side (for example, 190°C) by the first temperature interval from the input set instruction temperature Ta, and sets a decreased correction allowable temperature Tn (for example, 172°C) higher than the low-temperature adjacent set instruction temperature Td on the low-temperature side (for example, 170°C) by the first temperature interval from the set instruction temperature Ta (step S60).

[0063] When the augmented correction allowable temperature Tm and the reduced correction allowable temperature Tn are set as described above, the controller 12 monitors the operations of the high switch 43a and the low switch 43b during the heating adjustment (steps S71 and S74). For example, when the cooking container target temperature Ts corresponding to the input set instruction temperature Ta is detected by the temperature sensor 31a and a predetermined notification is made from the speaker 17, if the user recognizes that the temperature of the cooked food is different from the set instruction temperature Ta based on the heating adjustment situation, the user operates the high switch 43a or the low switch 43b to input the corrected set instruction temperature Th. Although not shown, at this time, similar to the first embodiment, each time the high switch 43a or the low switch 43b is operated, after the corrected set instruction temperature Th obtained by increasing or decreasing the set instruction temperature Ta at the second temperature interval is displayed on the display unit 41d, the original set instruction temperature Ta is displayed on the display unit 41d. Thereby, the user can confirm the acceptance of the input corrected set instruction temperature Th and can recognize the heating adjustment of the cooked food at the set instruction temperature Ta close to the user's feeling.

[0064] When the user operates the high switch 43a to augment-correct the set instruction temperature Ta as described above (Yes in step S71), the input of the corrected set instruction temperature Th for augment-correcting the set instruction temperature Ta down to the set augmented correction allowable temperature Tm or lower is allowed (Yes in step S72). When the user operates the low switch 43b to reduce-correct the set instruction temperature Ta (Yes in step S74), the input of the corrected set instruction temperature Th for reducing-correcting the set instruction temperature Ta up to the set reduced correction allowable temperature Tn or higher is allowed (Yes in step S75). Although not shown, at this time, similar to the first embodiment, when an augmentation correction exceeding the augmented correction allowable temperature Tm or a reduction correction exceeding the reduced correction allowable temperature Tn is input (No in step S72, No in step S75), the controller 12 rejects the input and causes the speaker 17 to notify that the corrections by the high and low switches 43a and 43b are not accepted and that it is necessary to increase or decrease the set instruction temperature Ta by the up and down switches 41e and 41f.

[0065] When the user operates the high switch 43a or the low switch 43b within the allowable temperature range not exceeding the increased correction allowable temperature Tm or the decreased correction allowable temperature Tn to increase-correct or decrease-correct the set instruction temperature Ta and inputs the corrected set instruction temperature Th (Yes in steps S72 or S75), the controller 12 sets the corrected cooking container target temperature Tt corresponding to the input corrected set instruction temperature Th based on the correlation data (step S73). Then, during the heating cooking, the heating power of the left control burner 31 is controlled so that the cooking container temperature detected by the temperature sensor 31a becomes the corrected cooking container target temperature Tt (step S76). Also, although not shown, when the cooking container temperature detected by the temperature sensor 31a reaches the corrected cooking container target temperature Tt, a predetermined notification is made from the speaker 27 and the set instruction temperature on the display unit 41d blinks.

[0066] After the heating power of the left control burner 31 is controlled so that the cooking container temperature detected by the temperature sensor 31a becomes the cooking container target temperature Ts or the corrected cooking container target temperature Tt as described above, when the heating cooking ends and the user operates the ignition / off switch 24 to extinguish the left control burner 31 (Yes in step S77), the controller 12 registers the heating conditions including the set instruction temperature Ta input in this heating cooking and the final correction conditions (for example, the corrected set instruction temperature Th, the temperature difference between the set instruction temperature Ta and the corrected set instruction temperature Th, the number of operations of the high and low switches 43a, 43b, etc.) in the storage unit 15 (step S78). Thereby, in the next heating cooking, the increased correction allowable temperature Tm and the decreased correction allowable temperature Tn are set based on the heating conditions of the registered past heating cooking. At this time, the heating conditions of this heating cooking may be registered for each cooking container, and the cooking container used by the user at the start of the next heating cooking may be selected by the operation panel 39. Thereby, heating cooking can be performed under appropriate heating conditions for each cooking container used by the user.

[0067] As described in detail above, according to this embodiment, similar to Embodiment 1, when it is determined that the temperature of the cooked food deviates from the set target temperature according to the situation of the cooked food such as the state of the cooked food and the quality of the cooked food during heat cooking, the user can finely adjust the set target temperature. Thereby, when heat-cooking the cooked food at the set target temperature, since the cooked food can be heat-cooked under appropriate heating conditions according to the cooking container used by the user and the amount of the cooked food, the user satisfaction can be improved.

[0068] Further, according to this embodiment, when performing an increase correction on the set target temperature, if in past heat cooking, the adjacent set target temperature on the high-temperature side has been decreased and corrected by the first temperature interval from the set target temperature, since a corrected set target temperature obtained by performing an increase correction up to an increase correction allowable temperature lower than the corrected set target temperature with the decreased and corrected adjacent set target temperature on the high-temperature side can be input, when finely adjusting the set target temperature by increase correction, reversal between the corrected set target temperature and the corrected set target temperature with the decreased and corrected adjacent set target temperature on the high-temperature side can be prevented.

[0069] Further, according to this embodiment, when performing a decrease correction on the set target temperature, if in past heat cooking, the adjacent set target temperature on the low-temperature side has been increased and corrected by the first temperature interval from the set target temperature, since a corrected set target temperature obtained by performing a decrease correction up to a decrease correction allowable temperature higher than the corrected set target temperature with the increased and corrected adjacent set target temperature on the low-temperature side can be input, when finely adjusting the set target temperature by decrease correction, reversal between the corrected set target temperature and the corrected set target temperature with the increased and corrected adjacent set target temperature on the low-temperature side can be prevented.

[0070] (Other Embodiments) (1) In the above embodiment, a gas stove is used as the heat cooker. However, the present invention can also be applied to other heat cookers such as an induction cooker.

[0071] (2) In the above embodiment, the set instruction temperature is input only once by the temperature setting instruction unit. However, in the present invention, during the heating cooking, the set instruction temperature may be input again. In this case, similar to the above embodiment, the re-input set instruction temperature may be incrementally corrected or decrementally corrected.

[0072] (3) In the above embodiment, the corrected set instruction temperature is displayed on the display unit only when the corrected set instruction temperature is input. However, in the present invention, after the corrected set instruction temperature is input, by performing a special operation (for example, long pressing the increase switch or the decrease switch) during the heating cooking, the corrected set instruction temperature may be displayed on the display unit.

[0073] (4) In the above embodiment, the set instruction temperature is incrementally corrected or decrementally corrected by the correction temperature setting instruction unit. However, in the present invention, depending on the set value of the initial set instruction temperature, the set instruction temperature may be incrementally corrected only or decrementally corrected only.

[0074] (5) In the above embodiment, a temperature sensor that contacts the bottom of the cooking container to detect the cooking container temperature is used. However, in the present invention, a temperature sensor that detects the cooking container temperature non - contact, such as an infrared temperature sensor, may be used.

[0075] (6) In the above Embodiment 1, when the user inputs the corrected set instruction temperature, an allowable temperature range within which the corrected set instruction temperature can be input is set based on the set instruction temperature, the set instruction temperature higher by the first temperature interval, and the set instruction temperature lower by the first temperature interval. However, even in Embodiment 1, similar to Embodiment 2, when the set instruction temperature higher or lower has been corrected in the past heating cooking, an allowable temperature range within which the corrected set instruction temperature can be input may be set based on those corrected set instruction temperatures.

[0076] (7) In the present invention, when erasing the history of heating conditions in past heating cooking stored in the storage unit, only the history regarding each set instruction temperature may be erased, or all the history may be erased by a single operation.

Explanation of Symbols

[0077] 12 Controller 15 Memory Unit 31, 32 Converner 31a, 32a Temperature Sensor 39 Operation Panel 41e, 42e Up Switch 41f, 42f Down Switch 43a Increase Switch 43b Decrease Switch P Cooking Container

Claims

1. A cooking heater comprising a heating unit for heating a cooking container containing cooked food, a temperature detection unit for detecting the temperature of the cooking container, a heating condition input unit for inputting heating conditions, and a control unit, wherein the heating condition input unit has a temperature setting instruction unit for increasing or decreasing a set instruction temperature, which is a target heating temperature of the cooked food, at a first temperature interval and inputting it, and a correction temperature setting instruction unit for increasing or decreasing the set instruction temperature input by the temperature setting instruction unit at a second temperature interval narrower than the first temperature interval to input a corrected set instruction temperature, when the set instruction temperature is input by the temperature setting instruction unit, the control unit operates the heating unit so that the temperature of the cooking container detected by the temperature detection unit becomes a target temperature of the cooking container corresponding to the set instruction temperature, after the set instruction temperature is input by the temperature setting instruction unit, it is determined whether a corrected set instruction temperature for increasing or decreasing the set instruction temperature is input by the correction temperature setting instruction unit, and when the corrected set instruction temperature is input by the correction temperature setting instruction unit, the heating unit is operated so that the temperature of the cooking container detected by the temperature detection unit becomes a corrected target temperature of the cooking container corresponding to the corrected set instruction temperature.

2. In the cooking heater according to Claim 1, it further comprises a storage unit for storing a history of heating conditions input by the heating condition input unit, wherein the history of heating conditions includes a history of set instruction temperatures input by the temperature setting instruction unit and a history of correction conditions when the set instruction temperature is increased or decreased to the corrected set instruction temperature by the correction temperature setting instruction unit, when the set instruction temperature is input by the temperature setting instruction unit, the control unit determines whether the same set instruction temperature as the set instruction temperature input by the temperature setting instruction unit in the current cooking is input by the temperature setting instruction unit in a past cooking stored in the storage unit, if the same set instruction temperature as the set instruction temperature input by the temperature setting instruction unit in the current cooking is input by the temperature setting instruction unit in a past cooking stored in the storage unit, the set instruction temperature for the current cooking is increased or decreased based on the correction conditions when the same set instruction temperature was input by the temperature setting instruction unit in the past cooking to set a corrected set instruction temperature, and the heating unit is operated so that the temperature of the cooking container detected by the temperature detection unit becomes a corrected target temperature of the cooking container corresponding to the set corrected set instruction temperature.

3. In the cooking heater according to Claim 1 or 2, A storage unit that stores the history of the heating conditions of the heating unit input by the heating condition input unit. The history of the heating conditions includes the history of the set instruction temperature input by the temperature setting instruction unit and the history of the correction conditions when the set instruction temperature is incrementally corrected or decrementally corrected to the corrected set instruction temperature by the correction temperature setting instruction unit. When the set instruction temperature is input by the temperature setting instruction unit, the control unit determines whether the same set instruction temperature as the set instruction temperature input by the temperature setting instruction unit in the current heating cooking was input by the temperature setting instruction unit in a past heating cooking stored in the storage unit. If the same set instruction temperature as the set instruction temperature input by the temperature setting instruction unit in the current heating cooking was not input by the temperature setting instruction unit in a past heating cooking stored in the storage unit, the set instruction temperature of the current heating cooking is incrementally corrected or decrementally corrected based on the correction conditions when different set instruction temperatures were input by the temperature setting instruction unit in the past heating cooking to set the corrected set instruction temperature. A heating cooker that operates the heating unit so that the cooking container temperature detected by the temperature detection unit becomes the corrected cooking container target temperature corresponding to the set corrected set instruction temperature.

4. In the heating cooker according to claim 3, The control unit incrementally corrects or decrements the set instruction temperature of the current heating cooking based on the correction conditions when the set instruction temperature closest to the set instruction temperature input by the temperature setting instruction unit in the current heating cooking was input among one or more different set instruction temperatures input by the temperature setting instruction unit in the past heating cooking, or based on the average correction conditions when a plurality of different set instruction temperatures were input in the past heating cooking, to set the corrected set instruction temperature. A heating cooker.

5. In the heating cooker according to claim 2, A heating cooker provided with a reset unit that erases the history of the heating conditions stored in the storage unit.

6. In the heating cooker according to claim 1 or 2, After the first set instruction temperature is input by the temperature setting instruction unit, the control unit determines whether the first corrected set instruction temperature that incrementally corrects the first set instruction temperature is input by the correction temperature setting instruction unit. When a first corrected set instruction temperature for incrementally correcting the first set instruction temperature is input by the correction temperature setting instruction unit, the first corrected set instruction temperature can be input from the first set instruction temperature by a first temperature interval up to an increment correction allowable temperature lower than the higher second set instruction temperature, or if the second set instruction temperature has been decrementally corrected, the first corrected set instruction temperature can be input up to an increment correction allowable temperature lower than the second corrected set instruction temperature obtained by decrementally correcting the second set instruction temperature. A heating cooker that activates a heating unit so that the cooking container temperature detected by a temperature detection unit becomes a first corrected cooking container target temperature corresponding to the first corrected set instruction temperature when the first corrected set instruction temperature is input by the correction temperature setting instruction unit.

7. In the heating cooker according to claim 1 or 2, The control unit determines whether a first corrected set instruction temperature for decrementally correcting the first set instruction temperature is input by the correction temperature setting instruction unit after the first set instruction temperature is input by the temperature setting instruction unit. When a first corrected set instruction temperature for decrementally correcting the first set instruction temperature is input by the correction temperature setting instruction unit, the first corrected set instruction temperature can be input from the first set instruction temperature by a first temperature interval up to a decrement correction allowable temperature higher than the lower third set instruction temperature, or if the third set instruction temperature has been incrementally corrected, the first corrected set instruction temperature can be input up to a decrement correction allowable temperature higher than the third corrected set instruction temperature obtained by incrementally correcting the third set instruction temperature. A heating cooker that activates a heating unit so that the cooking container temperature detected by a temperature detection unit becomes a first corrected cooking container target temperature corresponding to the first corrected set instruction temperature when the first corrected set instruction temperature is input by the correction temperature setting instruction unit.

8. In the heating cooker according to claim 2, A heating cooker in which a storage unit stores a history of the heating conditions of the heating unit input by the heating condition input unit for each cooking container.

Images