JP2015164494A - heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heating cooker capable of cooking an object to be cooked by appropriate firepower taking into account not only initial temperature in a heating chamber but also a temperature state of cooking utensils when cooking is performed utilizing a repetitive heating chamber using different kinds of cooking utensils.SOLUTION: When a plate cooking mode using a grill plate 20 is selected as the present cooking mode, cooking is immediately started if the temperature in a chamber is equal to or lower than first acceptable temperature when the previous cooking mode is the plate cooking mode, and cooking is prohibited until the temperature in the chamber becomes equal to or lower than second acceptable temperature lower than the first acceptable temperature when the previous cooking mode is a non-plate cooking mode that does not use the grill plate 20.

Description

  The present invention relates to a cooking device including a heating chamber for cooking an object to be cooked. In particular, the present invention relates to a cooking device capable of cooking by introducing a grill plate for placing an object to be cooked in addition to a cooking tool such as a grill net in a heating chamber.

  Conventionally, a grill that has a heating chamber, an upper and lower burner that heats the object to be cooked, and a temperature sensor that detects the temperature in the heating chamber, and a cooking object such as fish is placed in the heating chamber In addition to manual cooking that manually adjusts the amount of heating of the upper and lower burners by introducing the heat, a cooking device capable of automatic cooking that automatically adjusts the amount of heating of the upper and lower burners during cooking is known (patent) Reference 1). In this type of cooking device, when the user selects automatic cooking in the cooking mode selection unit, the cooking object is heated for a predetermined cooking time and a predetermined heating amount according to the type of cooking object and the amount of baking. The

  In addition to cooking using the grille as described above, in order to cook bread, pizza, etc. using a heating cabinet, a dish-shaped grill plate for placing these items to be cooked is used as a cooking tool. 2. Description of the Related Art There is known a cooking device that can perform plate cooking that is introduced into a heating chamber and cooks. When performing plate cooking using such a grill plate, the upper surface of the object to be cooked is heated by a direct fire of the upper burner, but the lower surface of the object to be cooked is heated via the grill plate. The degree of progress of cooking on the lower surface is slower than on the upper surface. Moreover, since the grill plate generally has a larger heat capacity than the grill made of wire, the amount of heating at the initial stage of cooking is consumed for the temperature rise of the grill plate. Therefore, when cooking the plate, if the cooking time is lengthened in order to sufficiently heat the lower surface of the object to be cooked by the lower burner, heating of the upper surface of the object to be cooked by the upper burner becomes excessive, and Scorching is likely to occur. On the other hand, if the cooking time is shortened to prevent the upper surface from being burnt, the inside of the object to be cooked is not heated and cooking shortage is likely to occur. For this reason, the cooking device capable of plate cooking is configured to adjust the height and heat capacity of the grill plate in the heating chamber so that the upper and lower surfaces of the object to be cooked can be cooked evenly and in a balanced manner.

JP 2006-20718 A

  By the way, there are cases where cooking is repeatedly performed using a heating cabinet when the amount of cooking is large or when cooking different types of objects to be cooked. In cooking using such a repetitive heating chamber, cooking starts from a state where the temperature in the heating chamber is high, so there is a possibility that the temperature in the chamber becomes excessively high during cooking compared to the first time cooking, In addition, the cooking object tends to be burnt. Therefore, it is conceivable to provide a control configuration that restricts the start of cooking until the internal temperature at the start of cooking decreases to a predetermined temperature.

  However, in a cooking device capable of cooking using a plurality of types of cooking utensils such as grills and grill plates, after cooking using grills, plate cooking may be performed using grill plates. is there. When cooking using such different cooking utensils is performed continuously, the temperature of the grill plate is as low as room temperature even if the internal temperature is high. Therefore, there is a problem that the degree of cooking of the cooking object varies depending on the temperature state of the grill plate, and uniform baking cannot be obtained on the upper and lower surfaces.

  For example, after cooking using a grill net, when performing plate cooking using a grill plate within a short time, the upper surface of the object to be cooked is heated by an upper burner with an upper burner in a state where the temperature in the cabinet is high, Since the lower surface of the object to be cooked is heated by the lower burner through the grill plate in contact with the low temperature grill plate, the progress of cooking on the lower surface is slower than the upper surface, and the upper surface and the lower surface are baked. The cooking time when the upper surface is baked is greatly different, and underheating of the lower surface is likely to occur. On the other hand, if the start of cooking is prohibited after the previous cooking has been completed until the temperature in the cooking chamber has fallen uniformly, not only is the overall cooking time prolonged, which is inconvenient, but the food to be cooked in the previous cooking is cooled. There is a problem that the taste decreases.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to allow a user to arbitrarily select a plate cooking mode using a grill plate and a non-plate cooking mode not using a grill plate. When cooking using a heating chamber is repeatedly performed with a simple heating cooker, if the current cooking mode is a plate cooking mode using a grill plate, the top and bottom surfaces of the object to be cooked are controlled regardless of the previous cooking mode. The object is to provide a cooked food with good baking after heating without excess or deficiency.

The present invention comprises a heating cabinet,
A gas burner that heats the food;
A temperature detector for detecting the temperature inside the heating chamber;
A plate cooking mode in which cooking is performed by introducing a dish-shaped grill plate on which an object is placed in the heating chamber, and a cooking tool such as a grill net is introduced in the heating chamber without introducing the grill plate. And a cooking mode selection unit capable of selecting a non-plate cooking mode for cooking,
A cooking mode storage unit for storing the cooking mode selected by the cooking mode selection unit;
A combustion control unit for controlling the combustion of the gas burner according to the cooking mode selected by the cooking mode selection unit,
When the plate cooking mode is selected by the cooking mode selection unit and the previous cooking mode stored in the cooking mode storage unit is the plate cooking mode, the combustion control unit has an internal temperature at the start of cooking. Is below a predetermined first acceptable temperature for performing cooking, the gas burner is ignited to start combustion,
When the plate cooking mode is selected by the cooking mode selection unit and the previous cooking mode stored in the cooking mode storage unit is a non-plate cooking mode, the internal temperature at the start of cooking is the first reception. It is a heating cooker that prohibits ignition of the gas burner until it becomes equal to or lower than a predetermined second acceptable temperature for performing cooking lower than the possible temperature.

  According to the heating cooker, when the subsequent cooking is performed in the plate cooking mode regardless of the previous cooking mode, the internal temperature at the start of cooking is a predetermined first acceptable temperature for performing cooking. Since cooking is not started unless it is below, it is possible to prevent overheating of the heating chamber during cooking and overcooking of the cooking object due to a high internal temperature.

  Moreover, when cooking using a heating chamber is repeatedly performed in plate cooking mode, cooking is started from a state where the grill plate is hot. Therefore, since the progress of cooking on the lower surface of the object to be cooked is accelerated by the high-temperature grill plate, if the inside temperature at the start of cooking is equal to or lower than a predetermined first acceptable temperature for performing cooking, cooking is immediately performed. Even when starting, the baking of the upper and lower surfaces of the object to be cooked can be made equal.

  On the other hand, after cooking is performed in the non-plate cooking mode, when cooking is performed in the plate cooking mode, cooking is started from the low temperature of the grill plate even though the internal temperature is high. Therefore, if cooking is started immediately when the internal temperature is equal to or lower than the first acceptable temperature after the end of the previous cooking, the difference in the degree of progress of cooking between the upper surface and the lower surface of the object to be cooked increases. However, according to the heating cooker, when the previous cooking mode is the non-plate cooking mode, the internal temperature is lowered to the second acceptable temperature for performing cooking lower than the first acceptable temperature. Otherwise, the gas burner is ignited and cooking is not started, so that the degree of progress of cooking on the upper and lower surfaces of the object to be cooked can be made equal.

In the heating cooker, preferably,
The gas burner includes an upper burner that heats the object to be cooked from above and a lower burner that heats the object to be cooked from below, and the upper and lower burners are operated in conjunction with point-extinguishing.

  According to the heating cooker, when cooking in the plate cooking mode in which the lower surface of the object to be cooked is heated by the lower burner through the grill plate and only the upper surface is heated by the direct burn of the upper burner, it is connected to each burner. When cooking using a heating chamber is performed repeatedly with an inexpensive configuration without providing a control means for individually controlling the fire extinguishing of the burner in the gas supply pipe, and without adopting a complicated control configuration In addition, the upper and lower surfaces of the object to be cooked can be cooked without excess or deficiency depending on the internal temperature and the temperature of the grill plate.

In the heating cooker, preferably,
The cooking mode storage unit stores the selected cooking mode when the cooking time in the cooking mode selected by the cooking mode selection unit is a predetermined time or longer.

  In both the plate cooking mode and the non-plate cooking mode, the user may perform additional heating for a short time by manual cooking or automatic cooking in order to eliminate the cooking shortage of the food item after cooking. For this reason, if such additional heating is also stored as the previous cooking mode, the temperature state of the grill plate may be erroneously determined. However, according to the heating cooker, the cooking mode is stored in the cooking mode storage unit only when the cooking time in the previous cooking mode is equal to or longer than a certain time. Cooking in the subsequent plate cooking mode can be started based on the presence or absence of use.

  As described above, according to the present invention, when the plate cooking mode is selected in the current cooking mode, the previous cooking mode is confirmed. Therefore, regardless of the initial temperature of the heating chamber, the temperature state of the grill plate Can be accurately determined. Moreover, when cooking is continuously performed in the plate cooking mode, cooking can be started immediately if the internal temperature is equal to or lower than the first acceptable temperature for performing cooking. For this reason, not only can cooking be performed repeatedly and repeatedly using a heating chamber, but also preventing the overcooking of the lower surface of the object to be cooked by the hot grill plate until the temperature inside the chamber decreases. it can.

  On the other hand, after cooking is performed in the non-plate cooking mode, when cooking is performed in the plate cooking mode, the inside temperature is lower than the second acceptable temperature for performing cooking lower than the first acceptable temperature. Since cooking is not started until it decreases, the degree of progress of cooking on the upper and lower surfaces of the object to be cooked can be made equal, and either one of the surfaces can be prevented from being overheated or insufficiently baked.

  Therefore, according to the present invention, regardless of the previous cooking mode, in cooking in the subsequent plate cooking mode, the upper and lower surfaces of the food to be cooked are heated without excess and deficiency to provide a food with good taste. Can do.

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 a schematic exploded perspective view showing an example of cooking utensils (grill plate, soup pan, and support frame) used in the heating cooker according to the embodiment of the present invention. FIG. 4 is a control circuit diagram of the heating cooker according to the embodiment of the present invention. FIG. 5 is a flowchart for explaining an example of the control operation in the case of performing automatic cooking with the heating cooker 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 shows a gas stove according to the present embodiment, which includes a plurality of stove burners 31, 32, 36 on the top surface of a top plate 30, and a grill net 15 and a grill plate 20 are used inside the stove body 3. A grill box 2 (heating box) for cooking 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 FIGS. 1 and 2, a grill door 21 that slides forward and backward is provided in the front opening 100 of the grill cabinet 2. A connecting plate 210 extends toward the inside of the grill cabinet 2 below the rear surface of the grill door 21, and the support frame 19 is connected to the connecting plate 210. Thus, by pulling the grill door 21 forward, the grill plate 20 and the juice tray 16 together with the support frame 19 are pulled out to the front of the grill cabinet 2, and by pushing the grill door 21 rearward, the grill plate together with the support frame 19 20 and the juice receiving tray 16 are configured to be accommodated in the grill cabinet 2. In this specification, the direction in which the grill door 21 and the back 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 up-down direction.

  As shown in FIG. 3, the support frame 19 includes a bent body 191 in which front and rear sides protrude upward and a metal round bar is bent into a substantially U shape in plan view, and a bent body 191. Front and rear support plates 195 and 196 respectively attached to the front and rear ends are provided. The protrusions 192 and 193 protruding above the front and rear sides of the support frame 19 are formed in a substantially convex shape when viewed from the front, and constitute a pedestal that supports the front and rear ends of the grill plate 20 or the grill net 15 from below. doing.

  When cooking using the grill plate 20, a dish-shaped grill plate 20 and a juice tray 16 that are detachably supported by a support frame 19 and a grill net 15 are introduced into the grill cabinet 2 as desired. When the grill plate 20 and the soup pan 16 are used, the grill plate 20 is supported by the support frame 19 so as to be positioned above the soup pan 16. When the grill plate 20, the soup pan 16, and the grill 15 are used, the grill plate 20 is placed on the grill 15 supported on a support frame 19 described later. The grill plate 20 of the present embodiment is made of an aluminum casting, and is formed in a shallow rectangular dish shape as a whole. More specifically, the grill plate 20 includes a substantially rectangular main body portion 201, front and rear flange portions 202 and 203 extending substantially horizontally from the outer peripheral edge of the main body portion 201 at both front and rear end portions of the main body portion 201, and the main body portion 201. The left and right end portions of the main body 201 are composed of left and right flange portions 204 and 205 extending obliquely upward from the outer peripheral edge of the main body portion 201. Further, the main body 201 has a protruding strip extending in the left-right direction in the front-rear direction, etc., so that the contact area of the food to be cooked with the grill plate 20 is made as small as possible and the food to be cooked becomes difficult to stick. A plurality are formed at intervals. Further, notches 206 and 207 are formed at the center of the front and rear flange portions 202 and 203. Accordingly, the left and right end portions of the front and rear flange portions 202 and 203 of the grill plate 20 are supported from below by the both ends of the projecting portions 192 and 193 of the support frame 19, and the projecting portions 192 and 192 of the support frame 19 are formed in the notches 206 and 207. By disposing the central portion of 193, the grill plate 20 is accommodated in a fixed position in the grill cabinet 2. In addition, the grill plate 20 may have a small hole in order to drop moisture, oil, or the like generated from an object to be cooked during cooking.

  The soup pan 16 is formed by forming a thin metal plate into a predetermined shape, and then applying heat-resistant clear coating or finish coating such as candy, and has a shallow dish 161 having a substantially rectangular shape in plan view, and an outer peripheral edge of the dish And front and rear flange portions 162, 163 and left and right flange portions 164, 165. In the soup pan 16, the dish portion 161 is fitted into the bent body 191 of the support frame 19, and the front and rear flange portions 162 and 163 are supported from below by the front and rear support plates 195 and 196 of the support frame 19, respectively. It is housed in a fixed position.

  In addition, when cooking using the grill 15, the soup pan 16 and the grill 15 shown in FIG. 1 are introduced into the grill cabinet 2. The grill net 15 according to the present embodiment connects a grill net frame 151 formed by bending a metal round bar into a substantially rectangular shape in plan view, and a side facing the grid net 151 in the left-right direction. A plurality of metal wire rods 152 and supported portions 153 that protrude in the front-rear direction from the left and right end portions of the front and rear sides of the grill frame body 151 are provided. The central part of the front and rear sides of the grill frame 151 is bent inward to form a recess 154, and supported parts 153 in which a metal wire is bent are joined to the left and right ends of the front and rear sides. . Therefore, by supporting the supported portion 153 of the grill 15 from below at both ends of the projecting portions 192 and 193 of the support frame 19, by arranging the central portions of the projecting portions 192 and 193 of the support frame 19 in the recess 154, The grill 15 is accommodated in a fixed position in the grill cabinet 2. Note that the upper surface of the main body portion 201 of the grill plate 20 and the upper surface of the wire rod 152 of the grill net 15 when not using the grill net 15 are configured to be positioned at substantially the same height in the grill cabinet 2.

  As shown in FIG. 2, an upper burner 56 is provided at the center of the upper wall in the grill cabinet 2 for heating the food to be cooked from above. Further, it is located below the central part of the left and right side walls in the grill cabinet 2 and is located below the main body part 201 of the grill plate 20 or the wire rod 152 of the grill net 15 when the grill door 21 is closed. In addition, a lower burner 55 for heating the object to be cooked from below is provided. Therefore, when cooking is performed by placing the food to be cooked on the grill plate 20, the upper surface of the food to be cooked is heated by the open flame of the upper burner 56, but the lower surface of the food to be cooked is grilled by the lower burner 55. When heated by the plate 20 and placing the object to be cooked on the grill 15 for cooking, the upper and lower surfaces of the object to be cooked are heated by the open flames of the upper and lower burners 56 and 55.

  An exhaust duct 17 is connected to the rear end (back side) of the grill cabinet 2, and the exhaust duct 17 constitutes an exhaust passage 13. A first temperature sensor 14 a is disposed near the upstream end of the exhaust passage 13, and a second temperature sensor 14 b is disposed on the rear wall of the grill cabinet 2. The internal temperature in the grill compartment 2 is detected by the first and second temperature sensors 14a and 14b. In order to detect the internal temperature, only one of the first and second temperature sensors 14a and 14b may be used.

  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, an operation unit 22 formed on the left side of the grill door 21 of the grill cabinet 2 includes a grill switch 37 having both the function of turning on and off the upper and lower burners 56 and 55 and a heating power adjustment function, and a pull-out type operation unit below the switch. 38 is provided. 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 gas stove of the present embodiment has both a grill cooking mode and a container cooking mode as automatic cooking as well as manual cooking in which the user manually operates the grill switch 37 to adjust the heating amount of the upper and lower burners 56 and 55. As shown in FIG. 1, when the pull-out operation unit 38 for grill is pulled out from the stove body 3, a touch panel operation unit 380 provided inside the pull-out operation unit 38 appears.

  In the touch panel type operation unit 380, as a cooking mode selection unit, a grill plate switch 41 for a plate cooking mode that is selected when an object to be cooked such as fish or bread is placed on the grill plate 20 for automatic cooking, There is provided an auto switch 42 for a grill net cooking mode which is selected when an object to be cooked is placed on the grill 15 for automatic cooking. In addition, the touch panel type operation unit 380 is provided with a baking control switch 43 for adjusting cooking of the cooking object.

  Further, the touch panel type operation unit 380 includes a display unit that lights up according to the number of times of operation of each cooking switch of the grill plate switch 41, the auto switch 42, and the baking control switch 43. Specifically, each time the grill plate switch 41 is operated, a timer, grilled fish, and toast are alternatively selected and lit, and each time the auto switch 42 is operated, dried fish, Fillet and appearance are selectively selected and lit, and each time the tempering switch 43 is operated, strong, standard and weak are alternatively selected and lit. It has become.

  The touch panel type operation unit 380 is provided with a timer switch 47 for setting the cooking time and a timer display unit 48 for displaying the cooking time when the timer is selected by the grill plate switch 41. Yes. In the gas stove according to the present embodiment, when manual cooking is performed using only the grill switch 37, the cooking mode storage unit described later stores the cooking in the grill net cooking mode. Has been.

  FIG. 4 is a block diagram of the gas stove according to the present embodiment. The control device C controls not only the upper and lower burners 56, 55 but also the combustion of the stove burners 31, 32, 36. Hereinafter, only the upper and lower burners 56, 55 will be described. Will not be described.

  As shown in FIG. 4, branch pipes 551 and 561 branched from the gas supply pipe 550 are connected to the upper and lower burners 56 and 55, respectively, and a main valve V <b> 1 is provided in the gas supply pipe 550. . The branch pipes 551 and 561 are provided with thermal power switching valves V2 and V3, and the bypass pipes 553 and 563 of the thermal power switching valves V2 and V3 are provided with orifices 554 and 564, respectively. The opening and closing of the main valve V1 and the thermal power switching valves V2 and V3 are controlled by the control device C. Specifically, when the main valve V1 is opened and closed, the fuel gas is supplied or stopped to both the upper and lower burners 56 and 55. Further, when the thermal power switching valve V3 is opened, fuel gas is supplied from both the branch pipe 561 and the bypass pipe 563 to the upper burner 56, the upper burner 56 burns with high heat, and when the thermal power switching valve V3 is closed, the bypass is bypassed. Fuel gas is supplied only from the pipe 563, and the upper burner 56 burns with low heat. Further, when the thermal power switching valve V2 is opened, fuel gas is supplied from both the branch pipe 551 and the bypass pipe 553 to the lower burner 55, the lower burner 55 is burned with high fire, and when the thermal power switching valve V2 is closed, the bypass is bypassed. Fuel gas is supplied only from the pipe 553, and the lower burner 55 burns with low heat. Also, in the vicinity of each flame hole of the upper and lower burners 56 and 55, there are disposed ignition electrodes 501 and 601 for spark discharge by applying a high voltage from the igniter 600, and flame sensors 502 and 602 formed in the flame holes. Has been.

  The control device C includes the first and second temperature sensors 14a and 14b, the power switch 29, the grill switch 37, the main valve V1, the thermal switching valves V2 and V3, the liquid crystal display unit 300, the grill plate switch 41, and an auto switch. 42, the touch panel type operation unit 380, the igniter 600, the flame sensors 502 and 602, and the like are connected via electric wiring. The number of operations of the grill plate switch 41, the auto switch 42, and the baking control switch 43 is counted by a ternary counter (not shown), and the type of food to be cooked or It is comprised so that baking may be judged.

  The control device C is composed of a microcomputer, a timer, and the like. The microcomputer incorporates a control program for performing cooking of the cooking object, and the heating amount and cooking time of the upper and lower burners 56 and 55 are controlled based on the control program. Although not shown, the microcomputer has, as a functional configuration, a combustion control unit that controls the heating amount of the upper and lower burners 56 and 55 by opening and closing the main valve V1 and the thermal power switching valves V2 and V3, and first and second temperatures. An internal temperature determination unit that determines whether the internal temperature detected by the sensors 14a and 14b is equal to or lower than a predetermined first or second acceptable temperature, and a grill plate switch 41 or an auto switch that is a cooking mode selection unit A cooking mode storage unit that stores the cooking mode when cooking is performed for a predetermined time or more after 42 is selected. Further, in the microcomputer memory, when the grill plate switch 41 or the auto switch 42 or the baking control switch 43 is selected, not only the type and cooking temperature of the food to be cooked but also a predetermined temperature depending on the inside temperature. A data table containing cooking time, a combustion pattern for burning the upper and lower burners 56, 55 at a predetermined heating amount, and set values such as first and second acceptable temperatures is stored. Note that the set values such as the combustion pattern and the first and second acceptable temperatures can be obtained in advance by experiments based on the characteristics of the gas stove.

  Next, the control operation in the case of performing automatic cooking using the gas stove according to the present embodiment will be described. FIG. 5 is a flowchart showing an example of a control program for performing automatic cooking when the grill plate switch 41 or the auto switch 42 incorporated in the microcomputer is selected. The same control is performed when timer cooking is performed.

  First, after the user turns on the power switch 29, when the grill plate switch 41 or the auto switch 42 is operated, it is determined whether or not the selected cooking mode is the plate cooking mode (step ST1). ). When the user operates the grill plate switch 41 (Yes in step ST1), whether the previous cooking mode stored in the cooking mode storage unit is the plate cooking mode or the grill cooking mode. Is determined (step ST2).

  When the cooking mode performed last time is the plate cooking mode (Yes in step ST2), the inside temperatures Th1 and Th2 detected by the first and second temperature sensors 14a and 14b are both for performing cooking. It is determined whether or not the temperature is lower than the first acceptable temperature Tr1 (for example, 275 ° C.) (step ST3). If both the internal temperature Th1 and Th2 are equal to or lower than the first receivable temperature Tr1 (Yes in step ST3), the operation of the grill plate switch 41 by the user is accepted, and the grill plate switch 41 and the baking adjustment switch 43 are received. The cooking mode is determined by turning on the type of cooking object selected according to the number of operations and the baking lamp (step ST4).

  Next, the combustion pattern and cooking time set in accordance with the type of cooking object to be cooked, the cooking temperature, and the internal temperature are read (step ST5), and the user turns on the grill switch 37 for cooking. Is started, the timer is started, the main valve V1 and the thermal power switching valves V2 and V3 are opened, and a high voltage is further applied from the igniter 600 to the ignition electrode 601 so that the upper and lower burners 56 and 55 are ignited. (Step ST6). When the heating amount of the upper and lower burners 56 and 55 is adjusted with a predetermined combustion pattern and a predetermined cooking time has elapsed (Yes in step ST7), the current plate cooking mode is stored in the cooking mode storage unit, and the main valve V1 is closed to finish cooking. In addition, when the user interrupts cooking within a short time from the start of cooking due to erroneous selection of the cooking mode or when the cooking time such as follow-up heating is less than a predetermined time (for example, 2 minutes), the current cooking mode Is not stored in the cooking mode storage unit, and cooking is terminated (steps ST8 to ST10).

  On the other hand, when the user operates the grill plate switch 41 and the current cooking mode is the plate cooking mode, but the cooking mode performed last time is the grill cooking mode (No in step ST2), the first and Whether the inside temperatures Th1 and Th2 detected by the second temperature sensors 14a and 14b are lower than a second acceptable temperature Tr2 (for example, 130 ° C.) for performing cooking lower than the first acceptable temperature Tr1. Determination is made (step ST13). Then, if the inside temperatures Th1 and Th2 are both equal to or lower than the second acceptable temperature Tr2 (Yes in step ST13), the cooking mode is determined in the same manner as described above, and the type or baking of the selected cooking object The adjustment lamp is turned on and the upper and lower burners 56 and 55 are ignited, and cooking is performed for a predetermined cooking time with a combustion pattern set according to the internal temperature (steps ST14 to ST20).

  However, if the cooking performed last time is the grill cooking mode and one of the inside temperatures Th1 and Th2 detected by the first and second temperature sensors 14a and 14b is higher than the second acceptable temperature Tr2 (step) In ST13, No), the operation of the grill plate switch 41 is not accepted until the inside temperatures Th1 and Th2 are equal to or lower than the second acceptable temperature Tr2, and the state where the lamp of the object to be cooked is not turned on is maintained (step ST21). In this case, it is informed from the liquid crystal display unit 300 or a speaker (not shown) that the operation of the grill plate switch 41 is not accepted because the internal temperature is high (step ST22).

  Then, if both of the interior temperatures Th1 and Th2 are equal to or lower than the second acceptable temperature Tr2, the user's operation of the grill plate switch 41 is accepted, the cooking mode is determined in the same manner as described above, and the selected cooking target is prepared. The lamp of the kind of item and baking is turned on, cooking is performed for a predetermined cooking time with a predetermined combustion pattern, and the current plate cooking mode is stored in the cooking mode storage unit after the cooking is finished (steps ST14 to ST20). In addition, when the internal temperature Th1, Th2 becomes equal to or lower than the second acceptable temperature Tr2, the liquid crystal display unit 300 or the like may be notified that the internal temperature has decreased.

  Furthermore, the cooking performed last time is the plate cooking mode, and when the user operates the grill plate switch 41, any one of the internal temperatures Th1 and Th2 detected by the first and second temperature sensors 14a and 14b is selected. If the temperature is higher than the first acceptable temperature Tr1 for performing cooking (No in step ST3), the internal temperature is determined to be unsuitable for cooking until the internal temperature becomes equal to or lower than the first acceptable temperature Tr1. The state where the operation of the grill plate switch 41 is not accepted and the lamp of the object to be cooked is not turned on is notified from the liquid crystal display unit 300 or the like (steps ST11 to ST12).

  When the user operates the auto switch 42 (No in step ST1), the first and second temperature sensors 14a and 14b do not determine the previous cooking mode stored in the cooking mode storage unit. It is determined whether the detected internal temperatures Th1 and Th2 are equal to or lower than a first acceptable temperature Tr1 (for example, 275 ° C.) for performing cooking (step ST23). The control operation when the inside temperatures Th1 and Th2 are both lower than or equal to the first acceptable temperature Tr1 and when either the inside temperature Th1 or Th2 is higher than the first acceptable temperature Tr1 is the plate cooking mode described above. These are the same as those (steps ST24 to ST32).

  According to the gas stove, when the plate cooking mode is selected in the current cooking mode, the cooking mode of the previously performed cooking stored in the cooking mode storage unit is confirmed, so the grill in the current plate cooking mode The temperature state of the plate 20 can be accurately determined. That is, if the previous cooking mode is the same plate cooking mode, the grill plate 20 is considered to be in a high temperature state. Therefore, if the internal temperature is higher than the first acceptable temperature for performing cooking, even if the upper and lower burners 56 and 55 are immediately ignited to start cooking, the cooking of the upper and lower surfaces of the cooking object is performed. Can be made equal. Thereby, even if the inside of the grill cabinet 2 becomes high temperature in the previous plate cooking mode, cooking can be performed smoothly in a short waiting time, and an object to be cooked having good baking on the upper and lower surfaces can be obtained. it can. In addition, since the food to be cooked is not placed on the hot grill plate 20 for a long time, it is possible to prevent overcooking of only the lower surface of the food to be cooked.

  On the other hand, if the previous cooking mode stored in the cooking mode storage unit is the non-plate cooking mode of the grill cooking mode, the grill plate 20 is considered to be in a low temperature state of about room temperature. Accordingly, when cooking is started by immediately igniting the upper and lower burners 56 and 55 from the state where the inside temperature is high, the upper surface of the object to be cooked is heated by the direct fire of the upper burner 56 and cooking proceeds in a short time. On the other hand, the lower surface of the object to be cooked is slow in cooking due to the low temperature grill plate 20 and is likely to be short of baking. However, in the gas stove, even if the inside temperature is equal to or lower than the predetermined first acceptable temperature when the plate cooking mode is selected, if the previous cooking mode is the non-plate cooking mode, the inside temperature is the first. Since the operation of the grill plate switch 41 is not accepted and the ignition of the upper and lower burners 56 and 55 is prohibited until the temperature becomes lower than the second acceptable temperature for performing cooking lower than the acceptable temperature, the internal temperature is high and the grill It is possible to prevent cooking from being started from a state where the temperature of the plate 20 is low. Thereby, the progress of cooking on the upper and lower surfaces of the object to be cooked can be made equal, and the upper and lower surfaces can be baked without excess or deficiency. Moreover, even if the inside of the grill cabinet 2 has become high due to the previous cooking, the subsequent cooking is started without waiting for the temperature inside the grill to drop to about room temperature, so that cooking can be performed smoothly. . Moreover, in the gas stove, the food to be cooked is cooked more appropriately because the food to be cooked is cooked with a different combustion pattern depending on the internal temperature at the start of cooking even if it is the same kind of food or the same baking. Can be cooked.

  Therefore, according to the gas stove, an inexpensive configuration is provided without providing a flow rate control valve for individually controlling the point-extinguishing of the upper and lower burners 56 and 55 and a control configuration for individually controlling a plurality of flow rate control valves. When cooking using the grill chamber 2 repeatedly with a gas stove, regardless of the previous cooking mode, cooking in the subsequent plate cooking mode heats the top and bottom surfaces of the food to be cooked without excess or deficiency. Can be provided.

  Furthermore, when performing automatic cooking based on the combustion pattern, the heating amount of the upper and lower burners 56 and 55 is set based on a standard value in each cooking mode, so that cooking ends depending on the type and size of the object to be cooked. Sometimes the user feels that the food to be cooked is insufficiently heated. In such a case, the user may perform additional heating for a short time by manual cooking or timer cooking after the end of automatic cooking. Therefore, if it is recognized and stored as cooking in a predetermined cooking mode even for short-time cooking, there is a possibility that a cooking mode different from the actually performed cooking mode is determined as the previous cooking mode. However, in the gas stove, since the cooking mode is not stored unless the cooking time is performed for a predetermined time or longer, erroneous determination of the temperature of the grill plate 20 due to such short-time cooking can be reliably prevented.

  In the gas stove, cooking is not started unless the internal temperature is equal to or lower than the predetermined first acceptable temperature regardless of the cooking mode. It is possible to prevent over baking of the object.

(Other embodiments)
(1) In the above embodiment, both the plate cooking mode and the grilled net cooking mode are stored in the cooking mode storage unit, but if only one cooking mode is stored, the previous cooking mode is plate cooking. Since it is possible to determine whether the mode is the non-plate cooking mode, the cooking mode storage unit may store the cooking mode only when cooking is performed in any cooking mode.
(2) In the above embodiment, grill cooking has been described, but the present invention can also be applied to oven cooking in which hot air generated by a gas burner is circulated.
(3) In the above embodiment, the heating cooker having the plate cooking mode and the grilled net cooking mode as the cooking mode has been described, but the container cooking mode using a heating container such as a Dutch oven is possible as the non-plate cooking mode. The present invention can be applied to a simple cooking device.

2 Grill box (heating box)
14a, 14b Temperature sensor (temperature detector)
15 Burning Net 20 Grill Plate 41 Grill Plate Switch 42 Auto Switch 55 Lower Burner 56 Upper Burner C Control Device

Claims (3)

A heating cabinet;
A gas burner that heats the food;
A temperature detector for detecting the temperature inside the heating chamber;
A plate cooking mode in which cooking is performed by introducing a dish-shaped grill plate on which an object is placed in the heating chamber, and a cooking tool such as a grill net is introduced in the heating chamber without introducing the grill plate. And a cooking mode selection unit capable of selecting a non-plate cooking mode for cooking,
A cooking mode storage unit for storing the cooking mode selected by the cooking mode selection unit;
A combustion control unit for controlling the combustion of the gas burner according to the cooking mode selected by the cooking mode selection unit,
When the plate cooking mode is selected by the cooking mode selection unit and the previous cooking mode stored in the cooking mode storage unit is the plate cooking mode, the combustion control unit has an internal temperature at the start of cooking. Is below a predetermined first acceptable temperature for performing cooking, the gas burner is ignited to start combustion,
When the plate cooking mode is selected by the cooking mode selection unit and the previous cooking mode stored in the cooking mode storage unit is a non-plate cooking mode, the internal temperature at the start of cooking is the first reception. A cooking device that prohibits ignition of the gas burner until the temperature becomes equal to or lower than a predetermined second acceptable temperature for performing cooking lower than the possible temperature. The heating cooker according to claim 1, wherein
The gas burner includes an upper burner for heating an object to be cooked from above, and a lower burner for heating the object to be cooked from below, and the upper and lower burners are cookers in which point-extinguishing is performed in conjunction. The heating cooker according to claim 1 or 2,
The cooking mode storage unit stores the selected cooking mode when the cooking time in the cooking mode selected by the cooking mode selection unit is a predetermined time or longer.

Images