JP5906218B2 - Cooker - Google Patents

Description

  The present invention relates to a cooking device having a heating cabinet. In particular, the present invention relates to a cooking device capable of cooking using a heating container in a heating chamber.

  Conventionally, it has a heating chamber that heats the food, a gas burner that heats the inside of the heating chamber, and a temperature sensor that detects the internal temperature of the heating chamber. There has been known a cooking device having a cooking mode in which a heated container is introduced into a heating chamber to perform automatic cooking.

  By the way, in the heating cooker having the cooking function described above, when cooking using a grill net is set so that only manual heating power adjustment is possible, a user who does not know the type of the automatic cooking mode is placed on the grill net. There is a case where cooking is placed and cooking is started in the container cooking mode. Further, even in a heating cooker that can select the grill cooking mode and the container cooking mode in the automatic cooking mode, the user may mistakenly select the automatic cooking mode. In consideration of such an erroneous selection of the container cooking mode, there is provided a heating cooker provided with determination means for determining the presence or absence of the heating container in the heating chamber based on the temperature in the chamber detected by the temperature sensor. The present applicant has previously proposed (Patent Document 1). According to this heating cooker, the difference between the temperature rise widths of the internal temperature caused by the presence or absence of the heating container in the heating chamber is utilized, even though the container cooking mode is selected, When the temperature rise exceeds a predetermined reference temperature range, it is determined that the heating container is “nothing”, and combustion control for forcibly extinguishing the gas burner is performed. Therefore, since the presence / absence of the heating container is determined at an early stage, cooking using a grille can be prevented from continuing for a long time with the combustion pattern set in the container cooking mode.

JP 2010-42075 A

  However, in the heating cooker, cooking is in a state where cooking has progressed to some extent by heating within the initial determination time for determining the difference in temperature rise. Therefore, when the container cooking mode is selected by mistake, even if the manual or automatic grill net cooking mode is selected and the cooking is restarted immediately after forced fire extinguishing of the gas burner, compared to the first cooking when cooking is performed for the first time. In other words, overcooking and scorching of cooked foods are likely to occur. In particular, in the grill cooking mode in which automatic cooking is performed with a predetermined combustion pattern, the above problem is likely to occur because heating is performed regardless of the initial determination time.

  In consideration of the heating at the initial determination time as described above, when the container cooking mode is selected by mistake and the gas burner is forcibly extinguished, the cooking time of the initial determination time is set for the cooking device having the grill net cooking mode. It is also possible to resume cooking after shortening.

  However, if the user does not notice the stop of cooking and it takes a long time to forcibly extinguish the gas burner and re-ignite it, the food becomes hard in fish etc., so even if cooking is resumed in the grill net cooking mode There is a problem that the taste is lowered. In addition, compared to the grilling cooking mode where cooking is performed with the food being exposed in the heating chamber, the container where cooking is performed in a state where the food is stored in a metal or ceramic heating container having a large heat capacity In the cooking mode, it is difficult to transmit heat to the food. For this reason, the combustion pattern in the container cooking mode is set so that the cooking chamber is heated for a long period of time, even when the same food is cooked, compared to that in the grill cooking mode. That is, in a heating cooker having a plurality of automatic cooking modes, the combustion pattern set in each automatic cooking mode is different, and the timing for changing the heating power during cooking and its change are individually set. Therefore, even after the gas burner is forcibly extinguished, there is a problem that cooking cannot be performed properly even if cooking is resumed immediately in the grill cooking mode to shorten the cooking time.

  Furthermore, when the container cooking mode is selected by mistake, the combustion pattern in the container cooking mode may be changed to the combustion pattern in the grill cooking mode after the initial determination time has elapsed without forcibly extinguishing the gas burner.

  However, as described above, the combustion pattern in the container cooking mode is different from the combustion pattern in the grill cooking mode, and the internal temperature when the initial determination time has elapsed is also higher. Therefore, if the combustion pattern is simply changed, the degree of progress of subsequent cooking differs, and the cooked product tends to be overbaked.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to provide a heating cooking capable of selecting a container cooking mode in which a heating container containing a cooked product is introduced into the heating chamber to perform automatic cooking. An object of the present invention is to provide a cooking device that is excellent in usability while suppressing a decrease in taste even when the container cooking mode is selected by mistake.

The present invention comprises a heating cabinet,
A gas burner for heating the inside of the heating chamber;
A detection unit for detecting the temperature in the heating chamber;
A cooking mode selection unit capable of selecting an automatic cooking mode of a container cooking mode for automatically cooking by introducing a heating container containing food into the heating chamber;
A combustion controller that burns the gas burner based on a predetermined combustion pattern that includes a heating power switch of the gas burner set according to the automatic cooking mode selected by the cooking mode selection unit. And
If the container cooking mode in the cooking mode selector is selected, predetermined initial determination time from the start of heating, by combustion of the gas burner in a strong thermal power,
In the heating chamber, the initial temperature characteristic based on the internal temperature detected by the detection unit in the initial determination time is compared with the reference determination temperature characteristic for determining the presence or absence of the heating container in the heating chamber. The presence or absence of the heating container of
When it is determined that there is no heating container in the presence / absence determination of the heating container , the combustion pattern for burning the gas burner is a heating power that weakens the heating power of the gas burner from the combustion pattern for cooking the container than the combustion pattern for cooking the container It is a heating cooker provided with the control structure which changes to the correction combustion pattern set so that the fall of the thermal power intensity at the time of switching may be early and / or the said thermal power switching may become large .

According to the heating cooker, when the container cooking mode is selected by the cooking mode selector, from a predetermined initial determination time from the start of heating to burn the gas burner in a strong thermal power, temperature with and without the heating vessel in the heating chamber Since the difference in the rise can be accurately detected and the internal temperature can be raised at an early stage, an error in selecting the automatic cooking mode can be determined in a shorter time . In addition, even if it is determined that the heating container is “no” based on the detected temperature characteristics such as the temperature rise range and the reached temperature, cooking continues without forcibly extinguishing the gas burner. Even if the selection is wrong, cooking can be performed continuously and automatically. If the container cooking mode has been selected by mistake, cooking continues with a modified combustion pattern that is different from the initially selected container cooking combustion pattern. It can be prevented from being heated with high heating power.

  On the other hand, when the gas burner is burned with a strong heating power as described above for the initial determination time, the heating power switching for weakening the heating power of the gas burner is performed in order to prevent overcooking of the cooked food as the cooking time elapses. At this time, in the container cooking combustion pattern in the container cooking mode, the gas burner is burned with high heating power in order to heat the food in the heating container. Too much and over baking is likely to occur. Therefore, when the container cooking mode is selected by mistake, it is difficult to prevent overcooking of the food simply by reducing the cooking time of the container cooking combustion pattern.

  However, according to the heating cooker, when the container cooking mode is selected by mistake, the thermal power switching timing for weakening the thermal power of the gas burner is earlier than the container cooking combustion pattern and / or the thermal power intensity at the time of thermal power switching. Since the combustion mode is changed to a corrected combustion pattern in which the decrease is large, overcooking of the cooked product can be prevented.

In the heating cooker, preferably,
The reference determination temperature characteristic is set based on the internal temperature at the start of heating.

  When the internal temperature at the start of heating is low and when it is high, the initial temperature characteristics differ even when the gas burner is burned with a constant heating power. However, it is possible to accurately determine an erroneous selection of the container cooking mode.

  As described above, according to the present invention, in a cooking device capable of selecting a container cooking mode for automatically cooking by introducing a heating container containing food into the heating chamber, the container cooking mode is selected by mistake. Even in the case where cooking is performed, cooking can be performed continuously with a modified combustion pattern different from the combustion pattern for container cooking set at the start of cooking without forcibly extinguishing the gas burner. Thereby, while being able to prevent the fall of the taste by the temporary stop of cooking, the user-friendly cooking device can be provided.

  Further, according to the present invention, the corrected combustion pattern that is changed when the container cooking mode is selected by mistake, the timing of the thermal power switching that weakens the thermal power of the gas burner than the combustion pattern for container cooking is early and / or when the thermal power switching is performed. Since the reduction of the heating power intensity is set to be large, overcooking of the cooked food can be prevented even if cooking is continued without a heating container.

FIG. 1 is a schematic perspective view showing an example of a heating cooker according to an embodiment of the present invention. FIG. 2 is a schematic longitudinal sectional view of the heating cooker of FIG. FIG. 3 is an explanatory diagram of a liquid crystal display unit showing the automatic cooking mode and cooking conditions of the heating cooker according to the embodiment of the present invention, and (a) shows the type of food in the container cooking mode. The display screen at the start of cooking when “Fried fish” is tempered and “Standard” is selected. (B) is the type of cooked food in the grilled net cooking mode. The display screen at the start of cooking when “Standard” is selected is shown in (c), when cooking is started in the container cooking mode of (a) and the automatic cooking mode is selected incorrectly. A display screen is shown. FIG. 4 is a correlation diagram showing the relationship between the temperature in the cabinet at the start of heating and the temperature rise when the grill or heating container is arranged in the heating cabinet in the cooking device according to the embodiment of the present invention. is there. FIG. 5 is a correlation diagram showing an example of the relationship between the thermal power switching timing of the combustion pattern for container cooking and the modified combustion pattern and the thermal power at the time of thermal power switching in the heating cooker according to the embodiment of the present invention. ) Is the type of cooked food, and “burned fish” is baked, and each burn pattern when “strong” is selected. (B) is the type of cooked food, and “baked fish” is baked. FIG. 4C shows the combustion patterns when “standard” is selected, and FIG. 4C shows the combustion patterns when “weak” is selected for “baked fish”, “baked fish”, and “weak”. . FIG. 6 is a flowchart for explaining a part of the control operation when the container cooking mode is selected in the cooking device according to the embodiment of the present invention. FIG. 7 is a flowchart for explaining a part of the control operation when the container cooking mode is selected in the cooking device according to the embodiment of the present invention. FIG. 8 is a flowchart for explaining a part of the control operation when the container cooking mode is selected in the cooking device according to the embodiment of the present invention. FIG. 9 is a flowchart for explaining a part of the control operation when the container cooking mode is selected in the cooking device according to the embodiment of the present invention.

Hereinafter, the cooking device according to the present embodiment will be specifically described with reference to the drawings.
FIG. 1 is a gas stove provided with a plurality of stove burners 31, 32, 36 on the top surface of a top plate 30. Inside the stove main body 3, a grill box for cooking using a grill or heating container 5. 2 (heating chamber) is provided. In addition, a liquid crystal display unit 300 that displays the operating state, cooking mode, and cooking conditions is disposed in front of the top surface of the top plate 30 so that the display panel can be visually recognized.

  As shown in FIG. 2, a grill door 21 that slides back and forth is provided in the front opening 100 of the grill cabinet 2. A tray receiving frame 19 extends from the rear surface portion of the grill door 21 toward the inside of the grill cabinet 2, and a grill tray 16 for receiving cooking oil and moisture is disposed above the tray receiving frame 19. Is placed. Although not shown, when grilling is performed, the grill is placed on the upper surface of the grill tray 16. On the other hand, when cooking is performed using the heating container 5, a container fixing frame 20 is attached to the upper surface of the grill tray 16 instead of the grill net, and a metal or ceramic heating container 5 is placed on the upper part of the container fixing frame 20. Placed.

  The container fixing frame 20 is composed of a plurality of metal wires, and the upper part thereof is formed in a concave shape that matches the bottom shape of the container body of the heating container 5. The heating container 5 is placed so as to fit into the upper part of the container fixing frame 20, and is accommodated in a fixed position in the grill cabinet 2 by closing the grill door 21. A shielding plate 8 is provided at the rear end of the container fixing frame 20 to cover a temperature sensor 14 (detection unit) provided in an exhaust passage 13 to be described later. Thereby, when the container fixing frame 20 on which the heating container 5 is placed is introduced into the grill warehouse 2, the shielding plate 8 is disposed around the temperature sensor 14. As a result, the flow of exhaust from above and in front of the temperature sensor 14 is suppressed with respect to the temperature sensor 14 provided in the exhaust passage 13 by the shielding plate 8, and the temperature sensor 14 when cooking using the heating container 5 is performed. Exhaust contact with is reduced. Therefore, the difference in temperature characteristics depending on the presence or absence of the heating container 5 can be determined more accurately.

  As shown in FIG. 2, an upper fire burner 56 for heating the cooked food and the heating container 5 from above is provided at the center of the upper wall in the grill cabinet 2. Further, a lower fire burner 55 for heating the cooked food and the heating container 5 from the side and the lower side is provided at a position below the central part of the left and right side walls in the grill cabinet 2. The lower fire burner 55 may be provided only on one side wall. An exhaust duct 17 is connected to the back end of the grill cabinet 2, and the exhaust duct 17 serves as an exhaust passage 13. A temperature sensor 14 for detecting the temperature of the combustion exhaust gas flowing through the exhaust passage 13 is disposed in the vicinity of the upstream end of the exhaust passage 13. The temperature sensor 14 detects the internal temperature in the grill cabinet 2. Is done. A plurality of temperature sensors 14 may be provided.

  Referring back to FIG. 1, the operation unit 23 located on the right side of the grill door 21 of the grill cabinet 2 has a point fire extinguishing switch 24 having both the power switch 29 and the point / fire extinguishing functions of the stove burners 31, 32, 36 and the thermal power adjustment function. , 25, 28 are arranged. On the other hand, the operation unit 22 formed on the left side of the grill door 21 of the grill cabinet 2 is provided with a grill switch 37 and a pull-out type operation unit 38 below the switch 37. The pull-out type operation unit 38 for the grill is attached to the stove body 3 so that it can be pulled out and pushed in, and is configured so that the pull-out type operation unit 38 is pushed into the stove body 3 when not in use. Has been.

  The heating cooker according to the present embodiment has both a grill cooking mode and a container cooking mode as automatic cooking modes. As shown in FIG. When pulled out, a touch panel type operation unit 380 provided inside the pullout type operation unit 38 appears. In this touch panel type operation unit 380, a cooked product such as fish is placed on the grill net in the grill cabinet 2, and an auto switch 41 for a grill net cooking mode for automatic cooking, and a cooked product in the grill cabinet 2 are provided. A cooking mode setting unit in which a menu switch 42 for a container cooking mode for automatically cooking is installed, and a setting change switch 43 for changing various settings; A lock key 44 is provided for preventing mischief by children.

  In addition, the touch panel type operation unit 380 includes upper and lower switches 45, 46, +, and − for selecting the type of cooking item and the amount of cooking based on the automatic cooking mode selected by pressing the auto switch 41 or the menu switch 42, respectively. Switches 47 and 48 are provided. The up / down switches 45 and 46, as shown in the explanatory diagram (a) of the liquid crystal display unit 300 in FIG. 3, each time the upper switch 45 or the lower switch 46 is repeatedly pressed after the menu switch 42 is pressed to select the container cooking mode. In addition, the type of cooking such as “baked fish” and “chicken thigh grilled” can be selected. Furthermore, the + and − switches 47 and 48 select “weak”, “standard”, and “strong” each time the + switch 47 or the − switch 48 is repeatedly pressed after the menu switch 42 is pressed to select the container cooking mode. It is configured so that the cooking of the cooking can be selected. Further, after the auto switch 41 is pressed and the grill cooking mode is selected, each time the upper switch 45 or the lower switch 46 is repeatedly pressed, as shown in FIG. It is configured so that the type of cooked food such as “baked”, “fillet” and “dried fish” can be selected. After selecting the grill cooking mode by pressing the auto switch 41, each time the + switch 47 or the-switch 48 is repeatedly pressed, the "weak", "standard", and "strong" cooking items are selected. It is configured to be able to. In addition, FIG.3 (c) is displayed in order to make a user recognize that the combustion pattern was changed into the correction combustion pattern from the container cooking combustion pattern mentioned later, when the container cooking mode was selected accidentally. Display screen.

  Although not shown, the control device that controls the grill cabinet 2 incorporates a microcomputer that stores a control program. The microcomputer uses a container determination unit that determines the presence or absence of the heating container 5 based on the internal temperature detected by the temperature sensor 14, an upper and lower burner 55 based on the internal temperature detected by the temperature sensor 14 and a data table described later. , 56 has a combustion control unit for performing combustion control. In addition, the microcomputer memory stores the setting conditions for each combustion pattern set to control the heating power of the upper and lower burners 55 and 56 during cooking based on the selected automatic cooking mode and cooking conditions. The setting conditions of the corrected combustion pattern set when the mode is selected, the reference determination temperature characteristic for determining the presence or absence of the heating container 5, and the upper and lower burners 55 and 56 when a predetermined abnormal state occurs during cooking An abnormal overheat prevention temperature and an abnormal overheat prevention time for forcibly extinguishing the fire, and a data table of determination conditions for making a baking determination when cooking with each combustion pattern in the grill cooking mode are stored.

When the container cooking mode is selected in the above cooking device, the method for determining the presence or absence of the heating container 5 will be schematically described. When the container cooking mode is selected, heating is started with a strong heating power, and the container determination unit been carried out the determination operation of the presence or absence of heating vessel 5 by, the internal temperature T ₀ at the start of heating a predetermined initial determination time (e.g., 5 minutes) the width of the temperature rise of the inside temperature T _H in the reference If it is less than the temperature rise width, it is determined that the heating container is “present”, and if it is not less than the reference temperature rise width, it is determined that the heating container is “not present”.

FIG. 4 shows the temperature T ₀ at the start of heating when a grill or a cooking product placed in the grill cabinet 2 is accommodated and the heating container 5 is introduced and heated for 5 minutes with a strong heating power. It shows the change in the temperature rise _(T H -T ₀₎ due to a difference in. As shown in FIG. 4, it can be seen that the temperature rise width after a certain period of time is significantly different between cooking using the grill and cooking using the heating container 5. This is because, as described above, the heating container 5 has a larger heat capacity than the cooked food, and therefore, when the upper and lower burners 55 and 56 are burned with the same heating power, the temperature rise in the grill box 2 is different. is there. In addition, the temperature rise width with respect to the internal temperature T ₀ at the start of heating may change between the case where the internal temperature T ₀ at the start of heating is low (less than 150 ° C.) and the high temperature (150 ° C. or higher). I understand. This is cooked with grilled network, even cooking either using heating vessel 5, the higher the inside temperature T ₀ at the start of heating, because the rise of the inside temperature T _H is dull.

Therefore, in the heating cooker of this embodiment, when the internal temperature _{T 0} at the start of heating is low (less than 0.99 ° C.), the temperature rise _(T H -T ₀₎ is, Y = -0 based on whether exceeds the reference temperature rise determined from .23 × _T 0 +69.5, when heating start internal temperature _{T 0} at is high (0.99 ° C. or higher), the temperature rise _(T H -T ₀ ) is set so that the presence or absence of the heating container 5 is determined based on whether or not it exceeds the reference temperature increase obtained from Y = −0.44 × T ₀ +101. Thereby, the presence or absence of the heating container 5 can be determined more accurately. The determination of the presence or absence of heating vessel 5, other initial temperature characteristic, for example, may be determined by comparison with the internal temperature T _H and the reference temperature reached in the initial determination time.

  Next, combustion control when the automatic cooking mode is selected in the cooking device of the present embodiment will be described.

  Table 1 shows container cooking that is set when the container cooking mode is selected, the type of food is “baked fish”, the cooking is moderate, and “weak”, “standard”, and “strong” are selected. Combustion pattern data table, Table 2 shows the grilled net cooking mode is selected, and the type of cooked items are “figure grilled”, “fillet”, and “dried fish”, and “standard” is set for baking. The data table when selected is shown, and Table 3 shows the data table of the corrected combustion pattern when the container cooking mode is erroneously selected under the cooking conditions shown in Table 1. These numerical values are obtained in advance by experiments. In addition, when “Chicken thigh baked” is selected as the type of food in the container cooking mode, or “Strong” and “Weak” are selected for baking in the grilled net cooking mode. Also for the combustion pattern, a data table obtained in the same manner is stored in the memory, although each set value is different.

  As shown in Table 1, when a specific cooking type (for example, “baked fish”) and baking (for example, “standard”) are selected, the cooking pattern for container cooking is selected cooking conditions. The upper and lower burners 55 and 56 are burned with the appropriate combustion pattern set in (1). Also, as shown in Table 2, the combustion pattern for grilling net cooking is also selected when a specific type of cooked food (for example, “figure appearance”) and baking (for example, “standard”) are selected. The upper and lower burners 55 and 56 are burned with an appropriate combustion pattern set under the cooking conditions.

This will be described in more detail. For example, in the container cooking mode, when “standard” is selected as “baked fish” and “standard” as the type of cooked food, the upper and lower burners 55, The combustion control is performed so that both of the upper and lower burners 55, 56 are weakened to "weak" after 12 minutes have elapsed. In the present embodiment, when the container cooking mode is selected, the temperature rise to determine the presence or absence of heating vessel 5 (T H _{-T 0)} predetermined initial determination does not exceed the reference temperature rise is Since the upper and lower burners 55 and 56 are burned at a constant heating power, the heating power for at least the initial determination time from the start of heating is set to be the same regardless of the cooking conditions.

  For example, in the grill cooking mode, when “Fine” is selected and “Standard” is selected for cooking, the upper and lower burners 55 and 56 are both “strong” for 1 minute from the start of heating. When one minute passes, the heating power is switched so that the upper fire burner 56 is weakened. After 4 minutes, the upper and lower burners 55, 56 are both weakened. Thermal power switching is performed, and after 10.5 minutes, the thermal power switching is performed such that both the upper and lower burners 55 and 56 are strengthened to “strong”.

  Therefore, as can be seen from Table 1 and Table 2, when the grill cooking mode is to be selected, if the container cooking mode is selected by mistake, even if the same food is cooked, the heating power is high, for a long time, Since the cooked product is heated, if cooking is continued in the container cooking combustion pattern as it is, overcooking or burning may occur. Moreover, even if the same baking adjustment is set in the container cooking mode and the grill cooking mode, in the grill cooking mode, the timing of thermal power switching and the degree of decrease in thermal power intensity at the time of thermal power switching differ depending on the type of food. When the automatic cooking mode is incorrectly selected, there is a problem that cooking cannot be performed with an appropriate heating power even if the combustion pattern for container cooking is shifted to the combustion pattern for grilling.

  For this reason, in the heating cooker of this Embodiment, when a container cooking mode is selected accidentally and it determines with heating container "none" by the presence / absence determination of the heating container 5 mentioned above, the correction | amendment combustion pattern shown in Table 3 Thus, the combustion of the upper and lower burners 55 and 56 is controlled. For example, when “cooked fish” is baked and “standard” is selected as the type of cooked food at the start of cooking, the upper and lower burners 55 and 56 are both “strong” for up to 5 minutes from the start of cooking. When the combustion control is performed and 5 minutes have passed, the heating power is switched so that the upper fire burner 56 is weakened to “weak”, and after 8 minutes, the upper and lower burners 55, 56 are both fired so as to be weakened to “weak”. Switching is performed.

  As described above, when it is determined that the heating container is “none”, the upper and lower burners 55 and 56 are combustion-controlled by the modified combustion pattern corresponding to the state where there is no heating container 5 in the grill cabinet 2 from the container cooking combustion pattern. Therefore, it is possible to prevent the cooked food exposed in the grill cabinet 2 from being heated with high heating power for a long time. In the present embodiment, as can be seen from the comparison between Tables 2 and 3, the corrected combustion pattern set when the container cooking mode is incorrectly selected is also different from the grilling cooking pattern. This is because, in the container cooking mode, the type of cooked food selected in the grill cooking mode cannot be selected from the heat capacity of the heating container 5, so if the container cooking mode is selected by mistake, the grill cooking mode is supported. The type of food to be cooked cannot be determined, and it is difficult to determine which type of food should be changed to the combustion pattern for grilled net cooking. 2, the combustion pattern is set in a state of being exposed in the chamber 2, so that fine temperature control is possible based on the internal temperature detected by the temperature sensor 14, whereas the combustion pattern for container cooking and the corrected combustion pattern In the initial determination time, in order to determine the presence or absence of the heating container 5, it is necessary to burn the upper and lower burners 55 and 56 with a constant heating power. The management for the combustion pattern is taken into consideration that there are many cases that is the degree of progress of the different cooking. In particular, when the upper and lower burners 55 and 56 are burned with a strong heating power in order to determine the presence or absence of the heating container 5 at an early stage, the internal combustion temperature is more likely to rise than in the grill cooking mode. The combustion pattern is set to be different from the net cooking combustion pattern.

  FIG. 5 is a correlation diagram showing an example of the relationship between the thermal power switching timing of the cooking pattern for the container cooking and the modified combustion pattern and the thermal power intensity at the time of thermal power switching when “baked fish” is selected as the type of cooked food. Yes, (a) shows each combustion pattern when “strong” is set by baking, and (b) shows each combustion pattern when “standard” is set by baking (c) ) Shows each combustion pattern when “weaker” is set by baking. In addition, the extinguishing time of each combustion pattern uses the abnormal overheating prevention time which forcibly extinguishes the upper and lower burners 55 and 56.

  As shown in FIG. 5, in the heating cooker of the present embodiment, the corrected combustion pattern in the case where it is determined that the heating container is “no” has the timing of the thermal power switching that weakens the thermal power as compared with the combustion pattern for container cooking. It is set so that at least one of the earlier or greater reduction in the thermal power intensity at the time of thermal power switching is performed. Thereby, even if the upper and lower burners 55 and 56 are burned with a strong heating power from the start of heating, the cooked food is not heated with the combustion pattern for cooking the container after it is determined that the heated container is “nothing”. Scorching can be prevented.

6-9 is a flowchart which shows a control program when the container cooking mode is selected with the heating cooker of this Embodiment.
First, the selection of the container cooking mode is accepted by the menu switch 42, and further, when the cooking type is set by the up and down switches 45 and 46, and the baking is adjusted by the + and-switches 47 and 48 (steps ST1 to ST3), the setting is made. Based on the cooked conditions, the set values such as the thermal power switching time in the container cooking combustion pattern and the thermal power intensity at the time of thermal power switching are read (step ST4). Next, when the grill is ignited (step ST5), the upper and lower burners 55 and 56 are burned with a strong heating power, and a heating timer X1 built in the microcomputer is started (step ST6).

Next, based on the temperature sensor 14, the initial internal temperature T ₀ in the grill chamber 2 is acquired, and whether the internal temperature T ₀ at the start of heating is less than a predetermined temperature Ts (for example, 150 ° C.). The reference temperature increase width Y at the time of low temperature and high temperature described above is set (steps ST7 to ST9). Then, in a predetermined initial determination time (e.g., 5 minutes), whether the difference between the internal temperature T ₀ at the start of heating the interior temperature T _H (T _{H -T 0)} is the reference temperature rise Y Is determined (steps ST10 and ST11).

  If it is less than the reference temperature increase width Y within a predetermined initial determination time (No in step ST10, Yes in step 11), the combustion of the upper and lower burners 55, 56 is controlled with the set combustion pattern for container cooking. (Step ST12).

On the other hand, if the initial determination time in the temperature rise (T H _{-T 0)} was the reference temperature rise Y above (in step ST10, Yes), it has not been introduced heating vessel 5 in the grill box 2 There is a high possibility that the container cooking mode has been selected by mistake. For this reason, combustion control is performed by changing the combustion pattern. In this case, as shown in FIGS. 7 to 9, since the corrected combustion pattern is different for each cooking condition at the start of cooking, first, the cooking condition set at the start of cooking is confirmed (steps ST20 and ST40), and the combustion pattern is changed. Notification of correction is made (steps ST21, ST41, ST61). Thereby, a user can be made to recognize the change from container cooking mode in the middle of cooking.

  Next, setting values such as the thermal power switching time and the thermal power intensity at the time of thermal power switching in the corresponding corrected combustion pattern are read (steps ST22, ST42, ST62), and the change acceptance of the heating / discharging after the change to the corrected combustion pattern is accepted. Notification is made (steps ST23, ST43, ST63). That is, in the cooking device of the present embodiment, when the container cooking mode is selected by mistake and cooking is started, the combustion pattern is automatically changed during cooking, so the user also selects the cooking level incorrectly. If this is the case, it may be desirable to change the baking rate when the combustion pattern is changed. Therefore, if baking can be selected again for a certain time from the change to the corrected combustion pattern, a cooking device that is more convenient to use can be provided. For this reason, after the change to the corrected combustion pattern, it waits until a change acceptance time (for example, 30 seconds) elapses (steps ST24, ST44, ST64), and when the heating / discharging is changed within the change acceptance time (step ST26). , ST46, ST66, No), and the cooking is continued after changing to the modified combustion pattern based on the changed baking (steps ST28 to ST29, ST48 to ST49, ST68 to ST69). Thereby, not only in the automatic cooking mode but also when the selection of cooking conditions is wrong, cooking that matches the user's intention can be performed after cooking is started.

(Other embodiments)
(1) Although grill cooking was explained in the above-mentioned embodiment, the present invention can be applied to oven cooking in which hot air generated by a gas burner is circulated. Moreover, although the said embodiment demonstrated the heating cooker which has both a grill cooking mode and a container cooking mode as automatic cooking mode, it can apply this invention also to the heating cooker which has only a container cooking mode. it can.

(2) In the above embodiment, when the thermal power switching is performed, the thermal power is decreased or increased stepwise, but may be continuously decreased or increased.

(3) In the above embodiment, cooking is performed with the same combustion pattern even when the internal temperature at the start of heating is different, but the internal temperature at the start of heating is low and high Different combustion patterns may be provided.

2 Grill box (heating box)
14 Temperature sensor (detection part)
42 Menu switch 55 Lower fire burner 56 Upper fire burner

Claims (2)

A heating cabinet;
A gas burner for heating the inside of the heating chamber;
A detection unit for detecting the temperature in the heating chamber;
A cooking mode selection unit capable of selecting an automatic cooking mode of a container cooking mode for automatically cooking by introducing a heating container containing food into the heating chamber;
A combustion controller that burns the gas burner based on a predetermined combustion pattern that includes a heating power switch of the gas burner set according to the automatic cooking mode selected by the cooking mode selection unit. And
If the container cooking mode in the cooking mode selector is selected, predetermined initial determination time from the start of heating, by combustion of the gas burner in a strong thermal power,
In the heating chamber, the initial temperature characteristic based on the internal temperature detected by the detection unit in the initial determination time is compared with the reference determination temperature characteristic for determining the presence or absence of the heating container in the heating chamber. The presence or absence of the heating container of
When it is determined that there is no heating container in the presence / absence determination of the heating container , the combustion pattern for burning the gas burner is a heating power that weakens the heating power of the gas burner from the combustion pattern for cooking the container than the combustion pattern for cooking the container A cooking device provided with a control configuration in which the switching timing is changed to a corrected combustion pattern set so that the timing of switching is early and / or a decrease in the heating power intensity at the time of switching the heating power is increased . The heating cooker according to claim 1, wherein
The said reference determination temperature characteristic is a heating cooker set based on the internal temperature at the time of the said heating start.

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