JP5319189B2 - Cooker with grill - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating cooker with a grill capable of suppressing the firepower of an upper burner without using the burner of high turndown ration as the upper burner in a grill with the upper burner and a lower burner in a grill chamber capable of automatically cooking. <P>SOLUTION: The heating cooker comprises: a grill chamber; a roasting grill 23 which is arranged in the grill chamber and on which an object 6 to be heated is mounted; the upper burner 21 arranged above the roasting grill 23 in the grill chamber; the lower burner 22 below the roasting grill 23 in the grill chamber; and an control section 4 controlling the burning state of the upper and lower burners 21, 22 and executing automatic cooking. The control section 4 can execute automatic cooking menus having the step of stopping the upper burner 21 and burning only the lower burner 22 in a part of all the steps of the automatic cooking. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a heating cooker provided with a grill.

Conventionally, a cooking device equipped with a grill has been widely used. A cooking device equipped with a grill performs grill cooking in which a grill net is arranged in a grill cabinet and a heated object such as a fish placed on the grill net is heated by a gas burner provided in the grill cabinet. Can be done. In recent years, instead of performing grill cooking while manually adjusting the heating amount as in the prior art, automatic grill cooking has become widespread (for example, see Patent Document 1).
JP 2005-102847 A

  A conventional cooking device equipped with a grill includes a grill, a grill provided in the grill and on which an object to be heated is placed, and an upper burner disposed above the grill in the grill. And a grill having a lower burner provided below the grill in the grill cabinet, and a controller for controlling the combustion state of the upper burner and the lower burner to execute automatic cooking. And in automatic cooking, since the suitable heating time is determined by the temperature rise value in the grill cabinet from the start of heating, it is necessary to start grill cooking without preheating the grill cabinet. When performing this automatic cooking, it is set so that a heated object such as fish is directly placed on the grill net and grill cooking is performed, and the lower burner and the upper burner are continued until cooking is completed as described above. Good grill cooking can be done by burning. However, it is not set to use cooking aids such as a cooking plate, and when using a cooking plate, etc., it is affected by the heat capacity of the cooking plate and depends on the heating amount by the upper burner and the lower burner. Unlike the case where a cooking aid such as a cooking plate is not used, the heat from the initial lower burner is consumed for the temperature rise of the cooking plate after the start of heating, so the heating by the lower burner becomes insufficient. It was something that would end up. In addition, when control is performed to increase the cooking time in order to obtain sufficient heating by the lower burner, heating by the upper burner becomes excessive, and the upper surface side of the object to be heated may be burnt.

  Even when a cooking plate or the like is not used, control is performed to increase the cooking time in order to sufficiently heat the inside, such as when heating a food that needs to be heated to the inside, such as frozen food. When the upper burner is heated, the upper surface side of the object to be heated may be burnt, and if the heating time is shortened to suppress the burn by the upper burner, the inside may not be heated sufficiently. There was a risk of becoming.

  In the above case, it is considered that the heating power of the upper burner and the lower burner can be balanced by reducing the heating power of the upper burner. In this case, the minimum heating power is not changed without changing the maximum heating power of the upper burner. The realization of the aperture ratio that can reduce the noise (that is, the realization of a high turn-down ratio) involves a great deal of technical difficulty, and it has been desirable to use another method.

  The present invention has been invented in view of the above-described conventional problems, and an object of the present invention is to provide a grill that can be cooked automatically by providing an upper burner and a lower burner in a grill cabinet. It is an object of the present invention to provide a cooking device including a grill that can suppress the heating power of the upper burner without using a burner having a turndown ratio.

In order to solve the above-mentioned problem, the invention according to claim 1 includes a grill cabinet, a grill 23 provided in the grill cabinet on which the heated object 6 is placed, and a grill 23 above the grill 23 in the grill cabinet. The upper burner 21 disposed at the position, the lower burner 22 provided at a position below the grill 23 in the grill cabinet, and the combustion state of the upper burner 21 and the lower burner 22 are controlled to perform automatic cooking. A heating cooker 1 including a grill 2 having a control unit 4, wherein the control unit 4 installs a cooking plate on the grill net 23, places a heated object 6 on the cooking plate, and automatically An automatic cooking menu that includes a step of burning both the upper burner 21 and the lower burner 22 and a step of burning only the lower burner 22 after the step of burning both the upper burner 21 and the lower burner 22 can be executed as a part of the entire cooking process. It is characterized by this.

When a cooking plate is installed on the grill net 23, heating by the lower burner 22 is hindered by the cooking plate, and the upper burner 21 scorches the upper surface of the heated object 6 in an attempt to sufficiently heat the heated object 6. Alternatively, if the upper surface of the article 6 to be heated is not burned, there is a significant problem that sufficient heating cannot be performed. However, in the present invention, both the upper burner 21 and the lower burner 22 are in a burned state. Since it is only necessary to stop the upper burner 21, it is possible to easily and surely control the upper burner 21 without using a burner having a high turn-down ratio and to solve the above problems effectively. Thus, the operation of the ignition device can be minimized and the durability of the ignition device can be improved.

  In the present invention, without using a burner having a high turn-down ratio for the upper burner, the heating power of the upper burner is suppressed by a simple configuration, and the upper burner is intended to sufficiently heat the object to be heated as in the past. As a result, it is possible to prevent the upper surface of the object to be heated from being burned, or to prevent the upper surface of the object to be heated from being burned so that sufficient heating cannot be performed.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

  As shown in FIGS. 1 and 5, the heating cooker including the grill according to the present embodiment includes a grill 2 including a grill burner (upper burner 21 and lower burner 22) made of a gas burner as a heating means in the stove body 10. And a built-in type gas stove with a grill 1 provided with a gas stove part 3 having a stove burner made of a gas burner as a heating means.

  A grill 2 is disposed at the center in the left-right direction inside the main body 10 that constitutes the main body of the gas stove 1 with the grill, and the grill 2 is disposed at the center in the left-right direction on the front surface of the stove main body 10. A grill door 25 is arranged.

  A plurality of gas stove parts 3 are arranged on the upper surface of the stove body 10, and in the embodiment shown in the accompanying drawings, three gas stove parts 3 are arranged on the upper surface of the stove body 10. The gas stove portions 3 are respectively arranged at the left and right sides on the front side of the upper surface, and the left and right central portions on the rear side of the upper surface, and the gas stove portion 3 on the upper surface of the stove main body 10 is provided. The portion not provided is covered with the top plate 11. Here, the gas stove unit 3 disposed on the left and right has a temperature sensor 3d composed of a thermistor, one of which detects the temperature at the bottom of the pan to control combustion, and a gas stove unit 3a with a temperature sensor of standard thermal power. The other one of the gas stove portions 3 arranged on the left and right is a high thermal power gas stove portion 3b. In the embodiment shown in the accompanying drawings, an example is shown in which a gas stove portion 3a with a temperature sensor is arranged on the left side and a high heating power gas stove portion 3b is arranged on the right side. Moreover, the gas stove part 3 arrange | positioned in the center part of the left-right direction of the rear side of a back upper surface becomes the small thermal power gas stove part 3c. Each gas stove unit 3 is provided with five virtues 31 for receiving and supporting a pan or the like. Each gas stove unit 3 is provided with an ignition plug (not shown) as an ignition device for igniting the stove burner and a thermocouple as an ignition detection device for detecting the ignition of the stove burner. Similarly, an ignition plug as an ignition device for igniting the grill burner and a thermocouple as an ignition detection device for detecting the ignition of the grill burner are provided. The ignition plug is ignited by a control unit 4 (see FIG. 2) composed of a microcomputer by an ignition operation in a heating state adjusting unit 7 described later, and ignition (ignition) information detected in the thermocouple is transmitted to the control unit 4 Recognized, the control unit 4 ends the ignition process with the spark plug.

  As shown in FIG. 2, a branch supply path 53 that branches from a fuel supply path 51 that supplies a gas fuel such as city gas is connected to each cooker and grill burner. The fuel supply passage 51 is provided with an electromagnetic valve 52, and each branch supply passage 53 is driven by a stepping motor to finely adjust the opening position of the valve body in order to adjust the supply amount of gas fuel. A flow rate control valve 54 and a position sensor (not shown) for detecting the opening position of the valve body are provided. The electromagnetic valve 52 and the flow rate control valve 54 are controlled by the control unit 4, and the detection information in the position sensor is recognized and processed by the control unit 4. Further, the flow control valve 54 is switched so that the flow rate becomes zero and the shut-off state is established when the corresponding gas burner or grill burner is not used.

  The grill 2 includes a grill box that forms a substantially box-shaped heating chamber having an open front surface and a closed rear surface. A grill tray 24 is provided at the lower portion of the grill box, and the grill tray 24 is heated. A grill net 23 is placed as a placement portion on which the object 6 is placed, and the heated object 6 is heated by a grill burner. An exhaust passage 29 for exhausting the combustion exhaust gas from the grill burner to the outside is connected to the rear side of the grill cabinet so as to extend upward. The exhaust passage 29 guides the combustion exhaust gas from the grill burner to the exhaust port 26. It is configured. The grill 2 will be described in detail later.

  The upper part of the front surface of the stove body 10 (the upper part on the left side and the upper part on the right side in the embodiment shown in the attached drawings) is a heating state for performing operations of ignition, extinguishing, and heating power control of the gas stove parts 3, respectively. The control unit 7 is provided, and at the upper right end of the front surface, the control unit 4, the electromagnetic valve 52, the flow control valve 54, the input unit, the heating state control unit 7 and the like are turned on and off. An automatic return type push button type power switch 12 is provided. In the embodiment shown in FIG. 1, a heating state adjustment unit 7a for performing operations of ignition, extinguishing, and heating power adjustment of the gas stove with temperature sensor 3a is disposed on the left side of the front surface, and a high thermal power gas cooking chamber is disposed on the right side of the front surface. A heating state adjusting unit 7b for performing operations of ignition, extinguishing, and heating power adjustment of the filter unit 3b, and a heating state adjusting unit 7c for performing operations of ignition, extinguishing, and heating power adjustment of the small heating gas stove unit 3c. It is arranged.

  Each heating state adjusting unit 7 is constituted by a push button that is movable in the front-rear direction in the accompanying drawings. When the gas stove unit 3 is used, the heating state adjusting unit 7 including the push button is pushed to perform an ignition operation. As a result, the retreating heating state adjusting unit 7 protrudes forward, the appliance plug is turned on, spark discharge is performed on the flowing gas fuel, and the gas stove unit 3 is ignited. When the heating state adjusting unit 7 composed of the push button protrudes forward and is gripped with a finger and rotated, the rotation angle is detected by the rotary encoder and recognized by the control unit 4. The valve body of the flow rate control valve 54 is driven by the stepping motor so that the opening position is in accordance with the rotation angle, the gas flow rate is controlled, and the heating power of the gas stove unit 3 can be adjusted. On the other hand, in extinguishing the fire, the appliance plug is turned off by pushing the heating state adjusting unit 7 protruding forward to turn off the gas stove unit 3.

  An operation panel is storable at the lower part of the front surface of the stove body 10. In the embodiment shown in the accompanying drawings, operation panels are respectively provided in the left and right lower portions of the front surface of the stove body 10 so as to be freely housed.

  Of the operation panels provided in the lower left and right portions of the front surface of the stove main body 10, one of the operation panels is provided with a grill cooking setting input unit for performing operations related to the grill 2. Is the grill side operation panel 9, and the other operation panel is provided with a cooking setting input section for the gas stove section for inputting the cooking setting by the gas stove section with temperature sensor 3a. It is a filter side operation panel 8.

  FIG. 3 shows an example of a grill cooking setting input unit, and FIG. 4 shows an example of a gas stove cooking setting input unit.

  As shown in FIG. 3, the grill cooking setting input unit for inputting cooking settings by the grill 2 includes an ignition / fire extinguishing switch 91 for igniting and extinguishing the grill 2, and cooking time (baking time) by the grill 2. Timer switch 92 for setting), a thermal power switch 93 for switching the heating power of the upper fire and the lower fire, and a menu switch 94 for selecting a firing menu and selecting a firing control corresponding to the corresponding fired product. The a la carte menu switch 95 for selecting the firing control corresponding to the corresponding a la carte menu by selecting an a la carte menu (described later), the timer switch 92, the thermal power switch 93, the menu switch 94, the a la carte menu switch 95, etc. A cancel switch 96 for canceling each input set in the above is provided.

  On the other hand, the cooking setting input unit for the gas stove part for inputting the cooking setting by the gas stove part with temperature sensor 3a sets the cooking time by the gas stove part with temperature sensor as shown in FIG. Timer switch 81 for setting, menu switch 82 for setting a menu for automatic cooking such as fried food, rice cooking, and boiling, cancel switch 83 for canceling each input set by operating timer switch 81 or menu switch 82, etc. I have. In the embodiment of FIG. 4, a fried food switch 82 a, a rice cooking switch 82 b, and a water heater switch 82 c are provided as the menu switch 82. Then, by pressing the fried food switch 82a, a fried food mode can be set in which the fried food is automatically cooked. During the cooking of a plurality of types of fried foods such as 200 ° C., 180 ° C., and 160 ° C., how many times the fried food switch 82a is pressed. The fried food cooking at the target temperature can be set. Moreover, it can be set as the rice cooking mode which cooks rice by automatic cooking by pushing the rice cooking switch 82b, and the rice cooking which is aimed from the cooking of the plural kinds of rice cooking such as rice and rice porridge by how many times the rice cooking switch 82b is pushed. Cooking can be set. Also, by pressing the water heater switch 82c, it is possible to enter a water heater mode in which the water heater is automatically cooked. The fire extinguisher is automatically extinguished depending on how many times the water heater switch 82c is pressed. It is possible to select and set the water heater such as to do. When the cooking setting in the gas stove unit 3a with temperature sensor is input in the cooking setting input unit for the gas stove unit, the gas stove unit with the temperature sensor based on the control content set in advance by the control unit 4 In this case, the pan bottom temperature is detected by a temperature sensor provided in the gas stove part 3a with a temperature sensor, and the pan bottom detected by the temperature sensor 3d is controlled. The temperature is input to the control unit 4 to adjust the thermal power by feedback control.

  Here, when the automatic cooking is set by the gas stove unit 3a with the temperature sensor, an ignition operation for projecting the heating state adjusting unit 7 forward by pushing the heating state adjusting unit 7 formed of a push button with a finger as described above. After performing, it controls so that the target cooking may be performed by the gas stove part 3a with a temperature sensor by inputting the target cooking setting by the cooking setting input part for gas stove part provided in the operation panel. The heating power adjustment, cooking time, and the like are controlled by the unit 4 to perform automatic cooking.

  As described above, when the gas stove unit 3 is used, when the heating is performed manually, the heating state adjusting unit 7 exposed on the front surface of the stove main body 10 is directly operated by a finger to the control unit 4. When giving instructions and performing ignition, heating power adjustment, fire extinguishing, and automatic cooking, the gas flow rate and heating power are adjusted by the control unit 4 regardless of the rotation operation position of the heating state adjustment unit 7. is there.

  In addition, automatic cooking may be extinguished due to the completion of automatic cooking, a timer function, or a safety device that detects an abnormality. However, the safety valve shuts off the fuel gas and extinguishes the fire.

  In the present embodiment, a flow rate control valve 54 driven by a stepping motor is provided in the branch supply path 53 of each gas stove unit 3, and the heating state adjusting unit 7 is operated so that the thermal power is electrically generated via the control unit 4. Although the adjustment is performed, a manual gas flow rate adjusting valve that directly operates the valve body manually may be provided. In this case, automatic cooking can be performed by providing an electromagnetic valve 52 for limiting the gas flow rate in series with the manual gas flow control valve. However, when performing automatic cooking, the user manually operates the manual flow control valve. By adjusting the gas flow rate control valve to the maximum gas flow rate position, more reliable automatic cooking is performed. In this embodiment, only the flow control valve 54 driven by a stepping motor is provided, and when performing automatic cooking, the flow control valve 54 is controlled to an arbitrary gas flow rate within the minimum to maximum range. There is no need for an operation in which the user adjusts the maximum gas flow rate when the heating state adjusting unit 7 is operated to perform heating manually.

  Next, the case where the grill 2 is used will be described. An operation panel having a cooking setting input unit for grilling is pushed forward from the front surface of the stove main body 10 by pushing the upper front portion of the movable member having an operation panel having a cooking setting input unit for grilling, as shown in FIG. Pressing the menu switch 94, the à la carte menu switch 95, or the timer switch 92 of the cooking setting input unit for the grill that is exposed and facing upwards with a finger makes setting input for grill cooking such as the cooking menu, the à la carte menu, and the cooking time. Next, the ignition / fire extinguishing switch 91 is pushed with a finger to perform an ignition input operation to ignite the grill 2. Thus, automatic cooking is performed by controlling the heating power, cooking time, and the like by the control unit 4 so that the intended grill cooking is performed. When the input of the cooking setting is completed, the upper part of the front surface of the movable member is pressed so that the operation panel is not exposed to the outside, thereby preventing the operation panel from becoming dirty during cooking by the grill 2. When it is desired to stop the automatic cooking during the automatic cooking in the grill 2, the automatic cooking can be stopped by extinguishing the fire by pressing the ignition / fire extinguishing switch 91 with a finger.

  The menus that can be switched by the menu switch 94 include “sake ware”, “fillet”, and “dried fish”, and the à la carte menu switch 95 can be selected from three types: “toast”, “pizza”, and “baked rice ball”. ing. When “Toast” or “Pizza” is selected from the à la carte menu, a metal cooking plate (not shown) as an accessory is placed on the grill 23 and the bread is placed on the cooking plate. It is recommended in the instruction manual that the heated object 6 such as pizza or pizza is placed and cooked, and the user operates the à la carte menu switch 95 according to this by using the accessory cooking plate as necessary. Then, à la carte menu cooking is performed, which will be described later.

As shown in FIG. 5, the grill 2 includes a grill burner as a heating unit in a substantially box-shaped grill chamber for heating the article 6 to be heated, and the main body is configured to open the rear surface of the grill chamber. An exhaust opening 28 is formed along the vertical direction. The grill burner is provided with an upper burner 21 on the upper surface of the grill cabinet, and above the grill pan 24 along the left and right side walls of the grill cabinet and below the net portion of the grill net 23 placed on the grill tray 24. The lower burner 22 is provided at the position. An exhaust cylinder 27 for exhausting cooking exhaust including smoke generated when the heated object 6 is heated by combustion of the grill burner, combustion gas generated from the grill burner, and the like from the exhaust port 26 is provided at the rear of the grill cabinet. An exhaust passage 29 is formed in the exhaust cylinder 27. The exhaust passage 29 has an inclination that is located upward as it goes rearward from the exhaust opening 28 at the rear end of the grill cabinet to the exhaust port 26 of the top plate 11, and cooking exhaust is naturally caused by a temperature rise. The air is exhausted from the exhaust port 26 through the exhaust passage 29 by a draft. Two temperature sensors (thermistors) TH ₁ and TH ₂ are provided in the grill cabinet.

Hereinafter, the cooking menu of the present invention will be described. In the present invention, in the process of performing automatic cooking of the grill 2, a step of stopping the combustion of the upper burner 21 and burning only the lower burner 22 as necessary is provided as a part of all the steps. Will be described with reference to the flowcharts shown in FIGS.
(1-1) First, the case of executing the “toast” automatic cooking menu in the à la carte menu will be described with reference to FIG.

  When performing “toast”, a metal cooking plate (hereinafter simply referred to as “cooking plate”), which is an accessory of the heating cooker, is placed on the grill 23, and bread or the like is placed on the cooking plate. It is designed to perform cooking by placing the object 6 to be heated, and the instruction manual describes that the cooking plate is placed on the grill net 23. In the case of toast, if the bread is placed directly on the grill 23, the fish odor component adheres to the grill 23 and the odor component may adhere to the bread. The same applies to the pizza described later.

  In step 1 (hereinafter referred to as (S1), and the same applies to step 2 and subsequent steps), when “toast” is selected and set from the à la carte menu and the grill ignition operation is performed (S2), the control unit 4 causes the grill thermal power. The adjustment stepping motor is driven, the heating power is set to be weak for the upper burner 21 and the lower burner 22 is set to be strong (S3), and heating is started.

  Next, it is determined whether or not a predetermined heating power switching time corresponding to the à la carte menu (200 seconds in the case of “toast” in this embodiment) has elapsed (S4). Turns off the upper burner 21 and sets the lower burner 22 strong (S6). In the case of No, the state where the upper burner 21 is weak and the lower burner 22 is strong is continued, and the process proceeds to (S5).

  Next, a determination is made as to whether or not the temperature in the grill has reached a predetermined heating power switching temperature according to the a la carte menu (in the case of “toast” in this embodiment, the temperature at the start of heating + 20 ° C.) ( In the case of S5) and Yes, the control unit 4 sets the heating power to cut off the upper burner 21 and sets the lower burner 22 to be strong (S6). In the case of No, the state in which the upper burner 21 is weak and the lower burner 22 is strong is continued, and the process returns to the determination routine of whether or not a predetermined heating power switching time corresponding to the à la carte menu has elapsed (S4).

  Next, in (S6), the control unit 4 turns on the heating power after turning off the upper burner 21 and setting the lower burner 22 to be strong, and continues heating, and a predetermined heating time (extinguishing time corresponding to the à la carte menu, In the case of “toast” in this embodiment, it is determined whether or not 260 seconds have elapsed (S7), and in the case of Yes, the upper burner 21 and the lower burner 22 are extinguished and cooking is ended (S9). In the case of No, the upper burner 21 is turned off, the lower burner 22 is made strong and combustion is continued, and the process proceeds to (S8).

  Next, it is determined whether or not the temperature in the grill has reached a predetermined fire extinguishing temperature corresponding to the à la carte menu (in the case of “toast” in this embodiment, the temperature at the start of heating + 32 ° C.) (S8). ), In the case of Yes, the upper burner 21 and the lower burner 22 are extinguished and cooking is finished (S9). In the case of No, the upper burner 21 is turned off, the lower burner 22 is made strong and combustion is continued, and the routine returns to the determination routine of whether or not a predetermined heating time (extinguishing time) according to the a la carte menu has elapsed (S7).

  In the present embodiment, the step of stopping the upper burner 21 and burning only the lower burner 22 is provided as a part of all the steps of the automatic cooking of “toast”, so that the heated object 6 is sufficiently heated. It is possible to prevent the upper burner 21 from scoring the upper surface of the article 6 to be heated or preventing the scoring of the upper surface of the article 6 to be heated from being sufficiently heated. Further, the above effect can be obtained with a simple configuration without using an upper burner with a high turndown ratio.

  In particular, when a cooking plate is installed on the grill net 23 as in the present embodiment, heating by the lower burner 22 is hindered by the cooking plate, and the upper burner 21 tries to sufficiently heat the object 6 to be heated. There is a problem that the upper surface of the object to be burned or the upper surface of the object to be heated 6 is not burned is not sufficiently heated. By providing the step of stopping the upper burner 21 and burning only the lower burner 22 in the cooking menu (“toast” in this embodiment), the above problem can be solved more effectively.

In this embodiment, after the step (S3) of burning both the upper burner 21 and the lower burner 22, the step (S6) of stopping the upper burner 21 and burning only the lower burner 22 is provided. It is only necessary to stop the upper burner 21 in a state where both the upper burner 21 and the lower burner 22 are combusted, so that the control is easily and reliably performed, and the operation of the ignition device can be minimized. That is, if a step of burning both the upper burner 21 and the lower burner 22 is provided after the step of stopping the upper burner 21 and burning only the lower burner 22, the upper burner 21 is burned during the combustion of the lower burner 22. Although the ignition is performed, it is difficult to ignite the upper burner 21 due to the influence of the combustion draft of the lower burner 22. To avoid this, the lower burner 22 is extinguished and then the upper burner 21 and the lower burner 22 are ignited. As a result, the operation of extinguishing and igniting the lower burner 22 is necessary, which complicates the control and increases the number of operations of the ignition device. On the other hand, in this embodiment, it is only necessary to stop the upper burner 21 in a state where both the upper burner 21 and the lower burner 22 are combusted, and the control is easy and reliable, and the operation of the ignition device is performed. It can be minimized and the durability can be improved.
(1-2) The case of executing the “pizza” automatic cooking menu in the a la carte menu will be described with reference to FIG.

  When “pizza” is executed, as in the case of the “toast”, a cooking plate that is an accessory of the heating cooker is placed on the grill 23 and the pizza or the like is heated on the cooking plate. It is designed to place the object 6 and cook, and the instruction manual describes that the cooking plate is placed on the grill 23.

  When "pizza" is selected and set from the à la carte menu (S1) and the grill ignition operation is performed (S2), the control unit 4 drives the stepping motor for adjusting the grill fire power, lowers the heat power to lower the upper burner 21 and lowers it. The burner 22 is set strong (S3), and heating is started.

  Next, it is determined whether or not a predetermined fire extinguishing time corresponding to the a la carte menu (450 seconds in the case of “pizza” in this embodiment) has passed (S4). The burner 22 is extinguished and cooking is finished (S6). In the case of No, the state where the upper burner 21 is weak and the lower burner 22 is strong is continued, and the process proceeds to (S5).

  Next, it is determined whether or not the temperature in the grill has reached a predetermined fire extinguishing temperature corresponding to the à la carte menu (in the case of “pizza” in this embodiment, the temperature at the start of heating + 45 ° C.) (S5). ), In the case of Yes, the upper burner 21 and the lower burner 22 are extinguished and cooking is finished (S6). In the case of No, the state where the upper burner 21 is weak and the lower burner 22 is strong is continued, and the process returns to the determination routine of whether or not a predetermined heating time (fire extinguishing time) according to the a la carte menu has elapsed (S4). .

In the automatic cooking process of “pizza” of the present embodiment, since the ratio of the heating amount required for the upper surface of the object to be heated is high, it is not necessary to provide a process of stopping the upper burner 21 and burning only the lower burner 22. This example is a reference example.
(1-3) A case where an automatic cooking menu of “warming rice balls” is executed on the a la carte menu will be described with reference to FIG.

  When performing “warming grilled rice balls”, the cooking plate that is an accessory of the heating cooker is not used, and the frozen grilled rice balls that are the objects to be heated 6 are placed directly on the grill 23 for cooking. The instruction manual states that the cooking plate is not used. In addition, it is described in the instruction manual that the object to be heated 6 is designed assuming a frozen grilled rice ball.

  From the à la carte menu, select and set “Grilled rice balls” (S1), and when the grill ignition operation is performed (S2), the control unit 4 drives the stepping motor for adjusting the grill thermal power to weaken the upper burner 21 The lower burner 22 is set strong (S3), and heating is started.

  Next, it is determined whether or not a predetermined heating power switching time according to the à la carte menu (360 seconds in the case of “for baked rice balls” in this embodiment) has passed (S4). The part 4 sets the heating power to the upper burner 21 and sets the lower burner 22 to be strong (S6). In the case of No, the state where the upper burner 21 is weak and the lower burner 22 is strong is continued, and the process proceeds to (S5).

  Next, it is determined whether or not the temperature in the grill has reached a predetermined heating power switching temperature according to the à la carte menu (in the case of “for grilled rice balls” in this embodiment, the temperature at the start of heating + 40 ° C.). In the case of Yes (S5), in the case of Yes, the control unit 4 sets the heating power to cut the upper burner 21 and sets the lower burner 22 to be strong (S6). In the case of No, the state in which the upper burner 21 is weak and the lower burner 22 is strong is continued, and the process returns to the determination routine of whether or not a predetermined heating power switching time corresponding to the à la carte menu has elapsed (S4).

  Next, in (S6), the control unit 4 turns on the heating power after turning off the upper burner 21 and setting the lower burner 22 to be strong, and continues heating, and a predetermined heating time (extinguishing time corresponding to the à la carte menu, In the present embodiment, it is determined whether or not 580 seconds have elapsed (in the case of baked rice balls) (S7), and in the case of Yes, the upper burner 21 and the lower burner 22 are extinguished and cooking is finished (S9). ). In the case of No, the upper burner 21 is turned off, the lower burner 22 is made strong and combustion is continued, and the process proceeds to (S8).

  Next, a determination is made as to whether or not the temperature in the grill has reached a predetermined fire extinguishing temperature according to the à la carte menu (in the case of “cooking rice balls” in this embodiment, the temperature at the start of heating + 75 ° C.). In the case of (S8) and Yes, the upper burner 21 and the lower burner 22 are extinguished and cooking is terminated (S9). In the case of No, the upper burner 21 is turned off, the lower burner 22 is made strong and combustion is continued, and the routine returns to the determination routine of whether or not a predetermined heating time (extinguishing time) according to the a la carte menu has elapsed (S7).

  Also in the “baked rice ball warming” of the present embodiment, the heating target 6 is sufficiently heated by providing a process of stopping the upper burner 21 and burning only the lower burner 22 in a part of the whole automatic cooking process. It is possible to prevent the upper burner 21 from scoring the upper surface of the object to be heated 6 or to prevent the upper surface of the object to be heated 6 from being scored and not to sufficiently heat it. The above effect can be obtained with a simple configuration without using an upper burner with a high turndown ratio.

  Further, particularly after the effect of installing the cooking plate on the grill net 23 and the step (S3) of burning both the upper burner 21 and the lower burner 22, the upper burner 21 is stopped and only the lower burner 22 is burned. As for the effect in providing the step (S6), the same effect as in the case of “1-1” in the above embodiment (1-1) can be obtained.

Next, another embodiment will be described based on the flowcharts shown in FIGS.
(2-1) First, the case of executing the “toast” automatic cooking menu in the à la carte menu will be described with reference to FIG.

  When performing “toast”, a cooking plate that is an accessory of the heating cooker is placed on the grill 23 as in the case of the first embodiment, and heated bread such as bread is placed on the cooking plate. It is designed to place the object 6 and cook, and the instruction manual describes that the cooking plate is placed on the grill 23.

  “Toast” is selected and set from the à la carte menu (S1), grill ignition operation is performed (S2), and the process proceeds to the fire extinguishing time calculation process (S2 ′).

In the fire extinguishing time calculation process (S2 ′), the control unit 4 drives the stepping motor for adjusting the grill fire power, sets the heat power to the upper burner 21 and the lower burner 22 to be strong, and the two temperature sensors TH ₁ , The temperature in the grill cabinet is measured with TH _2, the heat capacity of the object to be heated 6 and the mounting state are determined from the temperature change with time, and the necessary heating time is calculated. At this time, when the temperature change with the passage of time is gradual, arithmetic processing is performed so that the necessary heating time is set longer than when the temperature change is fast.

  When the fire extinguishing time calculation process (S2 ′) is finished, the control unit 4 drives the stepping motor for adjusting the grill fire power, sets the heat power to weaker the upper burner 21 and the lower burner 22 to be strong (S3), and continues heating. To do.

  Next, it is determined whether or not a predetermined heating power switching time corresponding to the à la carte menu (200 seconds in the case of “toast” in this embodiment) has elapsed (S4). Turns off the upper burner 21 and sets the lower burner 22 strong (S6). In the case of No, the state where the upper burner 21 is weak and the lower burner 22 is strong is continued, and the process proceeds to (S5).

  Next, a determination is made as to whether or not the temperature in the grill has reached a predetermined heating power switching temperature according to the a la carte menu (in the case of “toast” in this embodiment, the temperature at the start of heating + 20 ° C.) ( In the case of S5) and Yes, the control unit 4 sets the heating power to cut off the upper burner 21 and sets the lower burner 22 to be strong (S6). In the case of No, the state in which the upper burner 21 is weak and the lower burner 22 is strong is continued, and the process returns to the determination routine of whether or not a predetermined heating power switching time corresponding to the à la carte menu has elapsed (S4).

  Next, whether or not the heating time set in the fire extinguishing time calculation process has elapsed after the control unit 4 turns on the heating power in (S6) and turns off the upper burner 21 and sets the lower burner 22 strong. Is determined (S7), and in the case of Yes, the upper burner 21 and the lower burner 22 are extinguished and cooking is finished (S9). In the case of No, the upper burner 21 is turned off, the lower burner 22 is made strong and combustion is continued, and the process proceeds to (S8).

  Next, it is determined whether or not the temperature in the grill has reached a predetermined fire extinguishing temperature corresponding to the à la carte menu (in the case of “toast” in this embodiment, the temperature at the start of heating + 32 ° C.) (S8). ), In the case of Yes, the upper burner 21 and the lower burner 22 are extinguished and cooking is finished (S9). In the case of No, the upper burner 21 is turned off, the lower burner 22 is made strong and combustion is continued, and the process returns to the determination routine of whether or not the heating time (extinguishing time) set in the extinguishing time calculation process has elapsed (S7). .

  Also in the present embodiment, the object 6 to be heated is sufficiently heated by providing the step of stopping the upper burner 21 and burning only the lower burner 22 in a part of all the steps of automatic cooking as in this embodiment. It is possible to prevent the upper burner 21 from scoring the upper surface of the object to be heated 6 or to prevent the upper surface of the object to be heated 6 from being scored and not to sufficiently heat it. The above effect can be obtained with a simple configuration without using an upper burner with a high turndown ratio.

Further, particularly after the effect of installing the cooking plate on the grill net 23 and the step (S3) of burning both the upper burner 21 and the lower burner 22, the upper burner 21 is stopped and only the lower burner 22 is burned. As for the effect in providing the step (S6), the same effect as in the case of “1-1” in the above embodiment (1-1) can be obtained.
(2-2) The case where the “pizza” automatic cooking menu is executed in the à la carte menu will be described with reference to FIG.

  When “pizza” is executed, a cooking plate, which is an accessory of the heating cooker, is set on the grill 23 as in the case of the first embodiment, and a pizza or the like is placed on the cooking plate. It is designed to perform cooking by placing the heated object 6, and it is described in the instruction manual that the cooking plate is placed on the grill net 23.

  "Pizza" is selected and set from the a la carte menu (S1), grill ignition operation is performed (S2), and the process proceeds to the fire extinguishing time calculation process (S2 ').

In the fire extinguishing time calculation process (S2 ′), the control unit 4 drives the stepping motor for adjusting the grill fire power, sets the heat power to the upper burner 21 and the lower burner 22 to be strong, and the two temperature sensors TH ₁ , The temperature in the grill cabinet is measured with TH _2, the heat capacity and the mounting state of the article 6 to be heated are determined from the temperature change with time, and the necessary heating time is calculated. At this time, when the temperature change with the passage of time is gradual, arithmetic processing is performed so that the necessary heating time is set longer than when the temperature change is fast.

  When the fire extinguishing time calculation process (S2 ′) is finished, the control unit 4 drives the stepping motor for adjusting the grill fire power, sets the heat power to weaker the upper burner 21 and the lower burner 22 to be strong (S3), and continues heating. To do.

  Thereafter, it is determined whether or not the heating time set in the fire extinguishing time calculation process has elapsed (S4). If Yes, the upper burner 21 and the lower burner 22 are extinguished and cooking is terminated (S6). In the case of No, the state where the upper burner 21 is weak and the lower burner 22 is strong is continued, and the process proceeds to (S5).

  Next, it is determined whether or not the temperature in the grill has reached a predetermined heating power switching temperature according to the à la carte menu (in the case of “pizza” in this embodiment, the temperature at the start of heating + 45 ° C.). In the case of S5) and Yes, the upper burner 21 and the lower burner 22 are extinguished and cooking is terminated. In the case of No, the state where the upper burner 21 is weak and the lower burner 22 is strong is continued, and the process returns to the determination routine of whether or not the heating time set in the fire extinguishing time calculation process has elapsed (S4).

In the automatic cooking process of “pizza” of the present embodiment, since the ratio of the heating amount required for the upper surface of the object to be heated is high, it is not necessary to provide a process of stopping the upper burner 21 and burning only the lower burner 22. This example is a reference example.
(2-3) A case where an automatic cooking menu of “for baked rice balls” is executed in the à la carte menu will be described with reference to FIG.

  When executing “warming grilled rice balls”, the cooking plate which is an accessory of the heating cooker is not used as in the case of the first embodiment, and the frozen grilled rice balls which are the objects to be heated 6 are grilled. It is designed so that it can be placed directly on the top and cooked, and the instruction manual states that the cooking plate is not used. In addition, it is described in the instruction manual that the object to be heated 6 is designed assuming a frozen grilled rice ball.

  From the à la carte menu, select and set “Fried rice balls” (S1), perform a grill ignition operation (S2), and proceed to a fire extinguishing time calculation process (S2 ′).

In the fire extinguishing time calculation process (S2 ′), the control unit 4 drives the stepping motor for adjusting the grill fire power, sets the heat power to the upper burner 21 and the lower burner 22 to be strong, and the two temperature sensors TH ₁ , The temperature in the grill cabinet is measured with TH _2, the heat capacity and the mounting state of the article 6 to be heated are determined from the temperature change with time, and the necessary heating time is calculated. At this time, when the temperature change with the passage of time is gradual, arithmetic processing is performed so that the necessary heating time is set longer than when the temperature change is fast.

  When the fire extinguishing time calculation process (S2 ′) is finished, the control unit 4 drives the stepping motor for adjusting the grill fire power, sets the heat power to weaker the upper burner 21 and the lower burner 22 to be strong (S3), and continues heating. To do.

  Next, it is determined whether or not a predetermined heating power switching time according to the à la carte menu (360 seconds in the case of “for baked rice balls” in this embodiment) has passed (S4). The part 4 sets the heating power to the upper burner 21 and sets the lower burner 22 to be strong (S6). In the case of No, the state where the upper burner 21 is weak and the lower burner 22 is strong is continued, and the process proceeds to (S5).

  Next, it is determined whether or not the temperature in the grill has reached a predetermined heating power switching temperature according to the à la carte menu (in the case of “for grilled rice balls” in this embodiment, the temperature at the start of heating + 40 ° C.). In the case of Yes (S5), in the case of Yes, the control unit 4 sets the heating power to cut the upper burner 21 and sets the lower burner 22 to strong (S6). In the case of No, the state in which the upper burner 21 is weak and the lower burner 22 is strong is continued, and the process returns to the determination routine of whether or not a predetermined heating power switching time corresponding to the à la carte menu has elapsed (S4).

  Next, whether or not the heating time set in the fire extinguishing time calculation process has elapsed after the control unit 4 turns on the heating power in (S6) and turns off the upper burner 21 and sets the lower burner 22 strong. Is determined (S7), and in the case of Yes, the upper burner 21 and the lower burner 22 are extinguished and cooking is finished (S9). In the case of No, the upper burner 21 is turned off, the lower burner 22 is made strong and combustion is continued, and the process proceeds to (S8).

  Next, a determination is made as to whether or not the temperature in the grill has reached a predetermined fire extinguishing temperature according to the à la carte menu (in the case of “cooking rice balls” in this embodiment, the temperature at the start of heating + 75 ° C.). In the case of (S8) and Yes, the upper burner 21 and the lower burner 22 are extinguished and cooking is terminated (S9). In the case of No, the upper burner 21 is turned off, the lower burner 22 is made strong and combustion is continued, and the determination routine of whether or not the heating time (extinguishing time) set in the extinguishing time calculation processing has elapsed (S7) Return.

  Also in the present embodiment, the upper burner 21 is stopped by stopping the upper burner 21 and combusting only the lower burner 22 as a part of the whole automatic cooking process. It is possible to prevent the upper surface of the object to be heated 6 from being burned, or to prevent the upper surface of the object to be heated 6 from being burned and to prevent sufficient heating, and to improve the high turndown ratio. The effect can be obtained with a simple configuration without using a burner.

  Further, particularly after the effect of installing the cooking plate on the grill net 23 and the step (S3) of burning both the upper burner 21 and the lower burner 22, the upper burner 21 is stopped and only the lower burner 22 is burned. As for the effect in providing the step (S6), the same effect as in the case of “1-1” in the above embodiment (1-1) can be obtained.

  Further, as yet another embodiment, although not shown, in providing a process of stopping only the lower burner 22 by stopping the upper burner 21 in a part of the whole process of automatic cooking, A step of burning both the upper burner 21 and the lower burner 22 may be provided after the step of burning only the burner 22. In this case, as described above, there is a drawback that the number of times of operation of the ignition device increases, but if sufficiently durable parts are used, there is no problem in use, and this increases the degree of freedom in control. Benefits are gained.

  As yet another embodiment, for an automatic cooking menu in which the heating time of the upper burner 21 and / or the lower burner 22 in automatic cooking is a predetermined time or longer, the upper burner 21 is stopped and only the lower burner 22 is burned. May be provided.

This is because the temperature inside the grill is measured by the two temperature sensors TH ₁ and TH ₂ in the menu such as “appearance grilling”, “fillet” and “dried fish” which can be set by the menu switch 94, and the temperature with the passage of time. When determining the heat capacity and placement state of the article 6 to be heated from the change and calculating the required heating time, the heating time of the upper burner 21 and / or the lower burner 22 obtained by the calculation is equal to or longer than the predetermined heating time. In this case, a process of automatically stopping the upper burner 21 and burning only the lower burner 22 is provided.

  In addition, the heating time of the upper burner 21 and / or the lower burner 22 is not less than a predetermined heating time in menus such as warming of grilled pork, roast beef, and frozen food that need not be carefully heated. Alternatively, the upper burner 21 may be automatically stopped and only the lower burner 22 may be burned.

  Thus, even in the case of an object to be heated that needs to be heated by heating for a long time, it is possible to prevent the upper surface from being burned by heating the inside well.

  In addition, in embodiment mentioned above, although demonstrated as a built-in type heating cooker, a table-mounted heating cooker may be sufficient.

It is an external appearance perspective view of the heating cooker provided with the grill of one embodiment of the present invention. It is explanatory drawing explaining a fuel supply path same as the above. It is a front view of a grille side operation panel same as the above. It is a front view of the gas stove part side operation panel same as the above. It is a vertical side view of a grill same as the above. It is a flowchart of the automatic cooking of "toast" in one embodiment. It is a flowchart of the automatic cooking of "pizza" in embodiment same as the above. It is a flowchart of the automatic cooking of "baked rice ball warming" in embodiment same as the above. It is a flowchart of the automatic cooking of "toast" in other embodiments. It is a flowchart of the automatic cooking of "pizza" in embodiment same as the above. It is a flowchart of the automatic cooking of "baked rice ball warming" in embodiment same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Gas stove with a grill 2 Grill 20 Grill warehouse 21 Upper burner 22 Lower burner 24 Grill saucer 23 Grill net 3 Gas stove part 4 Control part 6 Heated object 7 Heating state adjustment part 8 Stove part side operation panel 9 Grill side Operation panel TH1 temperature sensor TH2 temperature sensor

Claims (1)

Grill grille, grill provided in the grill cabinet on which the object to be heated is placed, upper burner disposed above the grill grill in the grill cabinet, and grill grill in the grill cabinet a lower burner provided at a position below, a heating cooker having a grille having a control unit for executing the automatic cooking by controlling the combustion state of the upper burner and the lower burner, a control unit, grill Install the cooking plate on the cooking plate, place the object to be heated on the cooking plate, and stop the upper burner after the step of burning both the upper and lower burners as part of the whole automatic cooking process. A cooking device provided with a grill, characterized in that an automatic cooking menu provided with a step of burning only a burner can be executed .

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