JP6697938B2 - Cooker - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating cooker capable of cooking a container in which a cooking container accommodating food to be cooked is stored in a grill cabinet and heated.

  Conventionally, it has a grill cabinet for heating food, and a grill burner for heating the inside of the grill cabinet. In addition to cooking using a grill, a cooking container such as a Dutch oven containing the food is stored in the grill cabinet, A heating cooker capable of cooking a container for heating is known.

  In the heating cooking using the cooking container as described above, since the progress of cooking of the cooking product in the cooking container cannot be confirmed, the heating power of the grill burner is increased or decreased so that the cooking product is heated under the preset condition. There is. For example, in order to satisfactorily bake bread, cakes, etc. using a Dutch oven, setting means for setting the heating and cooking time is provided, and the initial heating is performed by burning the upper and lower burners for the time required to heat the cooking container itself. Later, there has been proposed a heating cooker that burns the upper and lower burners in a predetermined combustion mode determined based on the heating cooking time (for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 2015-19827

  By the way, since the cooking container has a larger heat capacity than the cooked food, it is difficult to reflect the progress of cooking the cooked food on the inside temperature. Therefore, generally, in the heating cooking using the cooking container, the heating power of the grill burner is controlled based on the heating cooking time set as in Patent Document 1.

  However, not only cooked foods such as breads and cakes that easily pass heat and small load, but also cooked foods such as gratin that require a certain amount of heating power to heat the entire food to the inside. Is also cooked using a cooking container. Therefore, if the heating power of the grill burner is changed based on only the set cooking time regardless of the difference in the load of the cooked food, the cooked food with a small load will be overbaked or the cooked food with a large load will be cooked. However, there is a problem that cooking may be completed in an insufficiently heated state. If the judgment time can be set for a long time, it may be possible to judge the load of the cooked food based on the temperature inside the refrigerator, but in the case of heating using a cooking container as described above, you can set the cooking time to finish the cooking. Therefore, it is necessary to determine the load of the cooked product before a set heating and cooking time by a certain time or more.

  The present invention is to solve the above-mentioned problems, and an object of the present invention is to determine the load of a cooking product in a cooking container when the cooking product is stored in a cooking container and cooked. Accordingly, the cooked food is heated just enough to provide a cooked food with a good taste.

The present invention is
With a grill
A cooking container in which food is stored and which can be freely put in and taken out from the grill cabinet,
Upper and lower burners to heat the cooking vessel,
A first temperature detection unit for detecting the temperature inside the grill cabinet above ;
A second temperature detection unit for detecting the temperature in the vicinity of the cooking container, which is below the inside of the grill chamber;
A cooking time setting unit that sets the heating cooking time,
A cooking device and a control device for controlling the heating power of the top and bottom burners,
The controller is
When heating and cooking are started, a predetermined load determination start time elapses from the start of heating or until the load determination timing at which the internal temperature detected by the first temperature detection unit reaches a predetermined load determination start temperature, Burn the upper and lower burners with a predetermined initial heating power,
When the load judgment timing comes, a predetermined load that extinguishes the upper burner or weakens the upper burner with the lower burner burning so that the heating amount becomes lower than the initial heating power. Switch to judgment firepower,
Load determination Based on the temperature characteristics of the internal temperature detected by the second temperature detection unit when the cooking container is heated by the thermal power, the load of the food in the cooking container is determined,
It is a heating cooker that controls the heating power of the upper and lower burners based on the determination of the load of the food.

According to the above-described heating cooker, the upper and lower burners are heated with a predetermined initial heating power until a predetermined load determination start time elapses from the start of heating or until the load determination timing when the internal temperature reaches the predetermined load determination start temperature. Since the fuel is burned, the temperature characteristics can be evaluated from the state in which the temperature inside the grill and the temperature of the cooking container are increased.
On the other hand, since the heat capacity of the cooking container is larger than that of the cooking product, it is difficult for the internal heating temperature and the initial heating for raising the temperature of the cooking container to cause a large difference in the internal cooking temperature due to the difference in the load of the cooking product. However, according to the heating cooker, when the load determination timing arrives, the upper heat burner is burned in a state in which the lower heat burner is burned so that the heating power of the upper and lower burners becomes lower than the initial heat power. Since the load is switched to a predetermined load determination thermal power for extinguishing the fire or weakening the thermal power of the upper heat burner to burn, the load of the cooked food can be determined based on the temperature characteristic of the internal temperature. That is, in the case of cooked food with a small load, if the temperature of the cooking container has risen to some extent due to the initial heating, even if the heating power of the upper and lower burners is changed to the load determination heating power with a lower heating amount than the initial heating power, The change in temperature is small. On the other hand, in the case of cooked food with a large load, the temperature of the cooking container has risen to some extent by the initial heating, but the cooked food in the cooking container is not sufficiently heated to the inside, so the heating power of the upper and lower burners must be increased. When the load judgment heat power, which has a lower heating amount than the initial heat power, is changed, the temperature change of the inside temperature becomes larger than that of the cooked food having a light load. Further, with the load determination thermal power, since the combustion of the lower flame burner is continued, the internal cold storage temperature does not excessively decrease. Therefore, the load of the food in the cooking container can be determined by evaluating the temperature characteristics of the inside temperature when the heating power of the upper and lower burners is switched to the load determination heating power that has a lower heating amount than the initial heating power. Thereby, the heating power of the upper and lower burners can be controlled according to the load of the food to be determined within the set heating and cooking time.

In addition, when the temperature of the cooking container rises due to the initial heating, the temperature of the entire inside of the grill chamber rises. Therefore, the load based on the internal temperature detected by the first temperature detection unit that detects the temperature above the grill chamber is applied. By determining the determination start temperature, the load determination can be started when the cooking container is reliably heated to a predetermined temperature or higher.
On the other hand, when determining the load of the cooked food, the upper fire burner is extinguished or the heating power of the upper fire burner is weakened. It may be difficult to do. However, according to the heating cooker, when the load of the cooked food is determined, the lower-burner burns, so the temperature change of the inside temperature of the cooking container below the grill and near the cooking container is detected by the second temperature detection. Can be detected more accurately in the department.

In the above heating cooker, preferably,
The load determination start time and the load determination start temperature are set based on the temperature inside the refrigerator at the start of cooking.

  The temperature characteristics differ depending on whether the temperature inside the refrigerator at the start of cooking is low (hereinafter referred to as “initial temperature”) or high, even if the upper and lower burners are burned with a constant heating power. According to the container, the load of the cooked food can be accurately determined even when cooking is continuously performed using the grill.

  As described above, according to the present invention, it is possible to accurately determine the load of the cooking product within the set heating cooking time in the heating cooker capable of cooking the container in which the cooking product is stored. Therefore, if the heating power of the upper and lower burners is controlled based on the determination of the load of the food, the food can be appropriately heated according to the load of the food. As a result, it is possible to reduce cooking excess and deficiency and provide a cooked food with a good taste.

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 vertical sectional view of the heating cooker of FIG. 1. FIG. 3 is an explanatory diagram showing an example of an operation unit of the heating cooker according to the embodiment of the present invention. FIG. 4 is a circuit diagram showing an example of the heating cooker according to the embodiment of the present invention. FIG. 5 is a correlation diagram showing the relationship between the heating time and the in-compartment temperature when the cooked food having a large load is cooked in the heating cooker according to the embodiment of the present invention. FIG. 6 is a correlation diagram showing the relationship between the heating time and the in-compartment temperature when the cooked food having a small load is cooked in the heating cooker according to the embodiment of the present invention. FIG. 7 is a flowchart showing an example of a control operation when heating and cooking with the heating cooker according to the embodiment of the present invention.

Hereinafter, the heating cooker according to the present embodiment will be specifically described with reference to the drawings.
FIG. 1 is a schematic perspective view showing an example of the heating cooker according to the present embodiment applied to a gas stove, and FIG. 2 is a schematic vertical sectional view thereof. As shown in FIG. 1, the gas stove includes a plurality of stove burners 31, 32, 33 on an upper surface of a top plate 30, and a grill case 2 is provided inside the stove body 3. In the grill case 2, for example, a grill (not shown) and a cooking utensil such as a cooking container 5 made of metal such as a Dutch oven or ceramics are stored. In front of the top surface of the top plate 30, a liquid crystal display unit 300 for displaying the operating state, the cooking mode, the cooking condition, and the like is provided, and the display panel is configured to be visible. In this specification, the direction in which the grill door 21 and the rear side of the grill cabinet 2 face each other is referred to as the front-rear direction, the width direction of the grill cabinet 2 is referred to as the left-right direction, and the height direction of the grill cabinet 2 is referred to as the vertical direction.

  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. Below the rear surface of the grill door 21, a connecting plate 210 is extended toward the inside of the grill cabinet 2, and the supporting frame 18 made of a metal wire rod on which the juice tray 16 is placed is connected to the connecting plate 210. Has been done. The support frame 18 is provided with front and rear support portions 180 that project the front and rear sides upward and support the container support 19 for installing the grill and the cooking container 5 from below. The container support body 19 is a substantially rectangular metal frame body, and in a state in which the front and rear portions of the container support body 19 are placed on the front and rear support portions 180 of the support frame 18, the container support body 19 is in the frame body. The cooking container 5 is placed in the grill cabinet 2 at a predetermined position by dropping the cooking container 5 into the box and placing the left and right grips of the main body of the cooking container 5 on the left and right support frame portions. As a result, by pulling the grill door 21 toward you, the cooking container 5 and the soup saucer 16 are pulled out to the front of the grill case 2, and by pushing the grill door 21 backward, the cooking container 5 and the soup saucer 16 are moved to the grill case 2. It is configured to be housed in 2.

  An upper burner 56 for heating the cooking container 5 from above is provided at the center of the upper wall of the grill case 2. Further, a lower fire burner 55 for heating the cooking container 5 from the side and the bottom is provided below the center of the left and right side walls in the grill case 2. The lower fire burner 55 may be provided only on one side wall. An exhaust duct 17 is connected to the rear end of the grill case 2, and the exhaust duct 17 serves as an exhaust passage 13.

  A first temperature sensor (first temperature detection unit) 14a having a heat-sensitive portion protruding inward of the grill case 2 is arranged at the left and right center portions of the rear wall of the grill case 2, and below the first temperature sensor 14a. The second temperature sensor (second temperature detection unit) 14b is arranged such that the heat-sensitive portion projects forward of the first temperature sensor 14a. The first and second temperature sensors 14a and 14b detect the temperature inside the grill case 2, and a detection signal of the temperature inside the grill case 2 is output to the control device C described later.

  Returning to FIG. 1, the operation part 23 located on the right side of the grille door 21 has a point fire extinguishing switch 24, 25, 26 having a power switch 29 and a burner 31, 32, 33 for turning on/off the fire and adjusting the heat power. Are arranged. On the other hand, on the operation portion 36 formed on the left side of the grill door 21, there are provided a switch 37 for the grill having a function of adjusting the fire of the upper and lower burners 56, 55 and a heat power adjusting function, and a kangaroo type operation unit 38 below the switch 37. It is provided.

  As shown in FIG. 3, the operation unit 38 is provided with a touch panel type operation unit 380. The operation unit 380 includes, for example, an auto menu switch 381 for selecting a container cooking mode in which the cooking container 5 accommodating the food is stored in the grill case 2 and is cooked, and the cooking time is selected from the container cooking modes. And a cooking selection switch 382 for performing timer cooking in which is set or selecting a type of cooking, and a cooking time setting switch 383 for setting a heating cooking time when performing timer cooking in the container cooking mode, And a display portion 384. For example, when the Dutch oven is used as the cooking container 5 and the timer cooking in which the heating cooking time is set is performed, when the user operates the auto menu switch 381, the container cooking mode using the cocotte or the Dutch oven is selected from a plurality of cooking modes. Alternatively, it is selected and displayed on the display unit 384 by lighting. Further, after the user selects the container cooking mode, every time the cooking selection switch 382 is operated, the type of cooking such as gratin, bread, cake, etc. is alternatively selected in addition to the timer setting, and is displayed on the display unit 384. Lights up and is displayed. Further, after the user selects the timer cooking, every time the cooking time setting switch 383 is operated, the heating cooking time is increased/decreased at intervals of 1 minute and is lit and displayed on the display unit 384. Therefore, in this embodiment, the auto menu switch 381, the cooking selection switch 382, and the cooking time setting switch 383 function as a cooking time setting unit.

  FIG. 4 is a circuit diagram of the gas stove according to the present embodiment. Although the control device C controls not only the combustion of the upper and lower burners 56, 55 but also the burners 31, 32, 33, only the upper and lower burners 56, 55 will be described below, and the burners 31, 32, 33 will be described. Is omitted.

  As shown in FIG. 4, branch pipes 551 and 561 branched from a gas supply pipe 550 are connected to the upper and lower burners 56 and 55, respectively, and the gas supply pipe 550 includes a main valve V1, a governor G, and an electromagnetic valve. A safety valve V2 is provided. The branch pipes 551 and 561 are respectively provided with thermal power adjusting plates S1 and S2 for adjusting the orifice to change the flow rate of the fuel gas by the operation of a stepping motor (not shown). Downstream of the thermal power adjusting plates S1 and S2. Are provided with latch valves V3 and V4. The operations of the source valve V1, the electromagnetic safety valve V2, the latch valves V3 and V4, and the stepping motor are controlled by the controller C. Specifically, when the main valve V1 and the electromagnetic safety valve V2 are opened and closed, the fuel gas is supplied or stopped to both the upper and lower burners 56 and 55. Further, by operating the stepping motor to adjust the orifices of the thermal power adjusting plates S1 and S2, the thermal power of the upper and lower burners 56 and 55 is changed between the high thermal power and the low thermal power, respectively. Further, by closing the latch valves V3 and V4, the supply of fuel gas to the upper and lower burners 56 and 55 is cut off. Further, in the vicinity of each flame hole of the upper and lower burners 56, 55, ignition electrodes 501, 601 for causing a spark discharge by applying a high voltage from the igniter 600, and flame sensors 502, 602 are arranged.

  The controller C includes the first and second temperature sensors 14a and 14b, the power switch 29, the grill switch 37, the main valve V1, the electromagnetic safety valve V2, the stepping motor, the latch valves V3 and V4, the liquid crystal display unit 300, and the operation. The part 380, the igniter 600, the flame sensors 502 and 602, etc. are connected via electrical wiring.

  Although not shown, the control device C that controls the grill 2 includes a microcomputer that includes a CPU, a ROM, a RAM, a timer, and the like, and stores a control program. When the container cooking mode is selected, the microcomputer controls the heating power of the upper and lower burners 56, 55 according to the control program. Further, as a functional configuration, the control device C operates the main valve V1, the electromagnetic safety valve V2, the stepping motor, and the latch valves V3 and V4 to operate the heating power of the upper and lower burners 56 and 55 when the container cooking mode is selected. It has a combustion control unit for controlling, an initial temperature determination unit for determining the initial temperature, a load determination unit for determining the load of the cooked product based on the internal temperature, and the like. Further, in the memory of the microcomputer, when the container cooking mode is selected, a predetermined heating power of the upper and lower burners 56, 55 set based on the selected condition, the initial temperature, and the load determination of the cooked food, A data table of initial thermal power switching time, initial thermal power switching temperature, load determination start time, load determination start temperature, etc. is stored.

  Table 1 shows the first and second initial thermal powers, the initial thermal power switching time, the initial thermal power switching temperature, the load determination start time, and the load determination start set when the timer cooking using the Dutch oven is selected in the container cooking mode. It is an example of a data table containing each set value of temperature and the thermal power set when it determines with a large load by a load determination. Note that these set values are obtained by experiments.

  5 and 6 respectively, using the setting values when the initial temperature in Table 1 is low (20° C.), the Dutch ovens containing the cooked foods having different loads are housed in the grill cabinet 2 for timer cooking. Fig. 5 shows the temperature change of the inside temperature with respect to the heating time in the case of performing the heating. Fig. 5 shows the temperature change in the case of gratin, which is a heavy load cooking product, and Fig. 6 is the case of a low load cooking food, potato. Indicates temperature change. In each figure, the solid line indicates the temperature change of the inside temperature Ti detected by the first temperature sensor 14a, and the broken line indicates the temperature change of the inside temperature Tj detected by the second temperature sensor 14b. In addition, the total cooking time for extinguishing both the upper and lower burners 56 and 55 is set to 1680 seconds for the case of the heavy load cooking of FIG. 5, and 1500 seconds for the low load of the cooking of FIG. It is set.

  The control operation of the gas stove according to the present embodiment will be schematically described with reference to Table 1 and FIGS. 5 to 6. At the beginning of heating and cooking, first, the heating power of the upper and lower burners 56 and 55 is set to the first initial heating power P1. (For example, both the upper and lower burners 56 and 55 have a high heat power), and the heating time tx from the start of cooking has passed a predetermined initial heat power switching time t1 or the inside temperature Ti detected by the first temperature sensor 14a is When the temperature reaches the predetermined initial heating power switching temperature T1, the heating power of the upper and lower burners 56, 55 is switched to the second initial heating power P2 (for example, the upper heating burner 56 has a higher heating power and the lower heating burner 55 has a lower heating power). In this way, by performing heating under a certain condition before the load determination is started, it is possible to evaluate the temperature characteristics of the inside temperature of the grill case 2 and the cooking container 5 from the state where the temperature has risen to a constant temperature. Further, if the upper and lower burners 56, 55 are burned with high heat at the beginning of heating and the heat of the upper and lower burners 56, 55 is weakened to the second initial heat P2 before the start of load determination, the first temperature sensor 14a causes Since the detected temperature gradient of the in-compartment temperature Ti becomes gentle, overshoot can be prevented, the load of the cooked food can be determined more accurately, and the deterioration of the coating on the inner wall of the cooking container 5 can be prevented. Further, although FIGS. 5 and 6 show only the temperature change when the initial temperature T0 is low, the upper and lower burners 56 and 55 are kept constant when the initial temperature T0 is low and high. Even if it is burned with heat, the temperature characteristics of the internal temperature will be different. Therefore, in the present embodiment, as shown in Table 1, the initial thermal power switching time t1 and the like are set according to the initial temperature T0. As a result, the load of the cooked food can be determined more accurately even when the cooking using the grill case 2 is continuously performed.

  5 and 6 show the internal chamber temperatures Ti and Tj detected by the first and second temperature sensors 14a and 14b when the upper and lower burners 56 and 55 are burned by the first and second initial thermal powers P1 and P2. In comparison, for example, the in-compartment temperature Ti after 300 seconds from the start of cooking is about 150° C. in all cases, the in-compartment temperature Tj is about 60° C. in all cases, and 720 before the load determination is started. In each case, the in-compartment temperature Ti after second is about 240° C., and the in-compartment temperature Tj is about 120° C. in each case. Further, it can be seen that those temperature gradients are substantially the same in FIGS. 5 and 6. Therefore, even if the load of the food in the cooking container 5 is different, the temperature characteristics of the in-compartment temperatures Ti and Tj detected by the first and second temperature sensors 14a and 14b show a clear difference in the initial heating. You can see that it does not happen. This is because the initial heating is mainly used to raise the temperature of the cooking container 5 having a large heat capacity, and thus the difference in the load of the cooked food having a smaller heat capacity than that of the cooking container 5 is unlikely to appear.

  Therefore, in the present embodiment, the heating time tx from the start of cooking has passed the predetermined load determination start time ta or the in-compartment temperature Ti detected by the first temperature sensor 14a is the predetermined load determination start temperature. When the load determination timing to reach Ta arrives, the thermal power of the upper and lower burners 56, 55 is lower than the heating amount of the second initial thermal power P2, and the load determination thermal power Pa (for example, extinguishes the upper heat burner 56, the lower heat burner 55). To low heat). At this time, since the first temperature sensor 14a detects the temperature Ti inside the upper part of the grill case 2, by switching to the load determination heating power Pa that extinguishes the upper fire burner 56, the temperatures shown in FIGS. As shown in the figure, the in-compartment temperature Ti is remarkably lowered in any load of the cooked food. Therefore, it is difficult to determine the load of the cooked food based on the in-compartment temperature Ti detected by the first temperature sensor 14a. However, the temperature change of the in-compartment temperature Tj detected by the second temperature sensor 14b arranged below the first temperature sensor 14a and capable of detecting the temperature near the cooking container 5 differs depending on the difference in load.

  That is, in the case of the cooked food having a large load shown in FIG. 5, when the upper fire burner 56 is switched to the extinguished load determination heating power Pa, the internal temperature Tj decreases in a short time, whereas the load shown in FIG. In the case of a small cooked product, even if the upper-burner 56 is switched to the extinguished load determination heating power Pa, the temperature change of the internal temperature Tj is small. This is because in the case of a cooked food with a large load, the temperature of the cooking container 5 is increased by the initial heating, but the entire cooked food is not sufficiently heated to the inside, and the heating amount of the cooked food is higher than that of the second initial heating power P2. This is because the in-compartment temperature Tj is likely to drop when the load determination heating power Pa is switched to a low value. On the other hand, in the case of a cooked food with a small load, if the temperature of the cooking container 5 has risen to some extent, the internal temperature Tj hardly changes even if the heating power of the upper and lower burners 56, 55 is weakened to the load determination heating power Pa. This is because. In particular, by setting the load determination heat power Pa that extinguishes the upper heat burner 56 and burns the lower heat burner 55 with a low heat power, the difference in the load of the cooked food is clarified while suppressing an excessive temperature drop of the inside temperature Tj. You can Therefore, for example, the internal temperature Tj detected by the second temperature sensor 14b at the time of starting the load determination is set as the reference determination temperature Tk, and the second heating is performed after the load determination is started and before the set cooking time ends. The load of the cooked food can be determined from whether the internal temperature Tj detected by the temperature sensor 14b is lower than the reference determination temperature Tk. Then, by controlling the heating power of the upper and lower burners 56, 55 based on the above load determination, it is possible to perform heating and cooking according to the load of the food. In the present embodiment, in the case of a cooked food having a large load, the thermal power of the upper and lower burners 56, 55 is set to the large load thermal power Pb (for example, the upper heat burner 56 is reignited with a high heat power, and the lower heat burner 55 is a weak heat power). Switch. As a result, even a cooked food with a large load can be sufficiently heated to the inside of the cooked food. Further, in the present embodiment, since the load of the cooking product is determined only based on whether or not the internal temperature Tj becomes lower than the reference determination temperature Tk, as shown in FIG. In the case of, the load determination heat power Pa is maintained as the heat power of the upper and lower burners 56, 55 until the set heating and cooking time ends. For this reason, in Table 1, only the large load thermal power when it is determined that the cooking load is large is set as the thermal power after the load determination. However, the type of the cooking product and the burning ability of the upper and lower burners 56 and 55 are set. Accordingly, even when it is determined that the food has a small load, the thermal power of the upper and lower burners 56 and 55 may be switched to a thermal power different from the load determination thermal power Pa. Further, in the case of a cooked food having a large load, for example, the upper heat burner 56 may be burned with a low heat power, or the lower heat burner 55 may be burned with a high heat power as the heavy load heat power Pb. Furthermore, based on the load judgment, the heating power of the upper and lower burners 56, 55 may be switched in a plurality of stages before the heating and cooking time ends.

FIG. 7 is a flowchart showing an example of the control operation in the gas stove of the present embodiment when the timer cooking using the Dutch oven is selected in the container cooking mode.
First, the auto menu switch 381 receives a selection of the container cooking mode, the cooking selection switch 382 selects the timer cooking using the touch oven, the cooking time setting switch 383 sets the cooking time, and the grill switch 37. When is turned on, the upper and lower burners 56 and 55 are ignited, and heating is started with a predetermined first initial heating power P1 (steps ST1 to ST5).

  When heating is started, the timer is started, the initial temperature T0 is read, and the initial thermal power switching time t1, the initial thermal power switching temperature T1, the load determination starting time ta, the load determination starting temperature Ta, which corresponds to the initial temperature T0, Various set values such as the second initial thermal power P2, the load determination thermal power Pa, and the large load thermal power Pb are read (steps ST6 to ST7).

  When the heating time tx elapses a predetermined initial thermal power switching time t1 or the in-compartment temperature Ti detected by the first temperature sensor 14a reaches a predetermined initial thermal power switching temperature T1, the thermal power of the upper and lower burners 56, 55 is changed to The second initial thermal power P2, which has a lower heating amount than the first initial thermal power P1, is weakened (steps ST8 to ST10).

  Next, when the heating time tx elapses a predetermined load determination start time ta or the load determination timing at which the internal temperature Ti detected by the first temperature sensor 14a reaches the predetermined load determination start temperature Ta arrives, The thermal power of the burners 56, 55 is weakened to the load determination thermal power Pa whose heating amount is lower than the second initial thermal power P2, and the internal temperature Tj detected by the second temperature sensor 14b is stored as the reference determination temperature Tk (step. ST11 to ST14).

  Then, by the end of the set cooking time, it is determined whether the internal temperature Tj detected by the second temperature sensor 14b is lower than the reference determination temperature Tk (steps ST15 and ST19). If the internal temperature Tj is lower than the reference determination temperature Tk by the end of the heating and cooking time (Yes in step ST15), it is determined that a heavy load of cooking is being cooked, and the upper and lower burners 56, 55. Is set as the large load thermal power Pb (step ST16). On the other hand, if the internal temperature Tj does not become lower than the reference determination temperature Tk by the end of the heating and cooking time (No in step ST15, Yes in step ST19), the load determination heating power Pa is maintained.

  As described above, according to the gas stove of the present embodiment, when the cooking container 5 accommodating the food is stored in the grill cabinet 2 for heating and cooking, the cooked food is based on the temperature inside the grill cabinet 2. Since the load is determined, the heating power of the upper and lower burners 56, 55 can be controlled based on the determined load of the cooked food. Therefore, heating and cooking can be appropriately performed according to the load of the food. As a result, it is possible to reduce cooking excess and deficiency and provide a cooked food with a good taste.

  Further, in the gas stove according to the above-described embodiment, the load determination start temperature is determined based on the inside temperature detected by the first temperature sensor 14a that detects the temperature above the grill case 2, so that the cooking container 5 can be reliably operated. The load determination can be started when the temperature is heated to a predetermined temperature or higher. Further, in the gas stove according to the above-described embodiment, when the load of the cooked food is determined, the lower-flame burner 55 burns, so that the temperature change of the inside temperature near the cooking container 5 below the grill storage 2 is changed. The two temperature sensor 14b can detect more accurately. Therefore, the load of the cooked food can be reliably determined.

(Other embodiments)
(1) In the above-described embodiment, the first and second temperature sensors are used as the temperature detection unit. However, as long as the load of the food can be determined, either one of the temperature sensors may be used or a single temperature sensor may be used. The temperature sensor may be used.
(2) In the above embodiment, in order to determine the load of the cooked food, the internal temperature at the time of starting the load determination is used as the reference determination temperature characteristic. A specific judgment temperature different from the internal temperature may be used as the reference judgment temperature characteristic.
(3) In the above-described embodiment, the load of the cooked food is classified into only large and small to make a determination, but it may be classified into three or more types of load based on the temperature characteristics of the inside temperature (4) In the mode, the heating cooking time is set by the timer setting, but the heating cooking time may be set by selecting the type of cooking in the automatic menu cooking. According to this, even if the same type of cooking is used, it is possible to reduce the excess or deficiency of cooking due to the difference in the cooking amount.

2 Grill storage 5 Cooking container 14a 1st temperature sensor 14b 2nd temperature sensor 55 Lower heat burner 56 Upper heat burner 381 Auto menu switch 382 Cooking selection switch 383 Cooking time setting switch

Claims (2)

With a grill
A cooking container in which food is stored and which can be freely put in and taken out from the grill cabinet,
Upper and lower burners to heat the cooking vessel,
A first temperature detection unit for detecting the temperature inside the grill cabinet above ;
A second temperature detection unit that detects the temperature in the vicinity of the cooking container, which is below the grill chamber;
A cooking time setting unit that sets the heating cooking time,
A heating cooker having a control device for controlling the heating power of the upper and lower burners,
The controller is
When heating and cooking are started, a predetermined load determination start time elapses from the start of heating or until the load determination timing at which the internal temperature detected by the first temperature detection unit reaches a predetermined load determination start temperature, Burn the upper and lower burners with a predetermined initial heating power,
When the load judgment timing comes, a predetermined load that extinguishes the upper burner or weakens the upper burner with the lower burner burning so that the heating amount becomes lower than the initial heating power. Switch to judgment firepower,
Load determination Based on the temperature characteristics of the inside temperature detected by the second temperature detection unit when the cooking container is heated by the thermal power, the load of the food in the cooking container is determined,
A heating cooker that controls the heating power of the upper and lower burners based on the determination of the load of the food. The heating cooker according to claim 1 ,
The load determination start time and the load determination start temperature are set on the basis of the temperature inside the refrigerator at the start of cooking.

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