JP5759215B2 - Cooker - Google Patents

Description

  The present invention relates to a cooking device, and more particularly to a technique for performing heating control in accordance with the color of an object to be cooked.

  Conventionally, a temperature sensor is used to detect the difference in the heat capacity and placement state of the object to be cooked, and the heating time is set, and when the detected temperature rises, the grill adjusts the amount of heating to prevent overburning and ignition. Cooking control has been proposed (see, for example, Patent Document 1).

  In addition, grill cooking control has been proposed in which a weight reduction rate of an object to be cooked is detected using a weight sensor to adjust the heating time (see, for example, Patent Document 2).

JP 2005-102846 A Japanese Patent Laid-Open No. 03-272717

  However, the conventional technique has the following problems.

  (1) In the method of adjusting the amount of heating using the temperature sensor of Patent Document 1, when the heating means heats the food by radiant heat, such as an electric heater or a surface combustion burner, the food to be cooked is “ The heating time required for the same weight is different for whitish radiant heat absorption rate such as “Aji” and blackish radiant heat absorption rate such as “Sanma”. In order to obtain a good cooking finish, it was necessary for the whitish horse mackerel to have a longer heating time than the darker sasan.

  In addition, when cooking food such as “Aji” that has a low absorption rate of radiant heat, heat does not easily transfer to the item to be cooked, so the exhaust gas temperature is likely to rise, and the absorption rate of radiant heat such as “Sama” As compared with the case where the food to be cooked is heated, it is determined that the same weight is lighter. In other words, when judged only by the temperature sensor, there is a possibility that a whitish fish that needs a longer heating time is judged to be lighter than a blackish fish and the heating time becomes shorter.

  (2) If the weight of the object to be cooked is measured by a weight sensor as in the prior art of Patent Document 2, the heating time can be adjusted based on the weight reduction rate, but is the object to be cooked whitish? Since it is not possible to determine whether it is dark, it is difficult to determine at what timing the heating amount can be switched to suppress overburning.

  Furthermore, even if the to-be-cooked items have the same weight, the smaller the thickness compared to the larger the thickness, the greater the ratio of the surface area to the volume, so the surface tends to be heated and the surface is rougher than the smooth surface. As the heat transfer coefficient due to convection on the surface increases, it is easy to be heated, but appropriate heating time setting according to the thickness of the object to be cooked and appropriate switching of the heating amount to prevent overburning, and Therefore, it is difficult to set an appropriate heating time according to the smoothness and roughness of the surface and to appropriately switch the heating amount for preventing overburning.

  The present invention has been made in view of the above circumstances, and the object of the present invention is to perform control to perform proper heating cooking regardless of the color, thickness, and surface roughness of the object to be cooked. To provide a cooker.

  In order to solve the above-mentioned problems, the present invention is capable of switching to at least two heating levels of high and low, and a heating source that heats and cooks the food to be cooked 34 that is housed in the housing place by radiant heating or convection heating. The temperature sensor 19 that detects the heating temperature that rises as the temperature of the object to be cooked 34 increases, and the control unit that sets the heating power to the lower heating power when the heating temperature reaches the switching temperature after the start of heating. 10, comprising a weight sensor 13 for detecting the weight of the object to be cooked 34, and the control unit 10 detects a value detected by the temperature sensor 19 and a value detected by the weight sensor 13. And determining whether the heat absorption rate of the object to be cooked 34 is high or low, and changing the switching temperature to a high value when it is determined that the heat absorption rate is low, or the heat absorption rate is It is characterized by changing the setting the switching temperature to a lower value when it is determined the Most.

  By setting it as such a structure, the heat absorption rate resulting from the difference in the hue of the to-be-cooked object 34 is changed by changing and setting the switching temperature from a strong fire to a low heat according to the heat absorption rate of the to-be-cooked object 34. The heating power can be set in accordance with the quality of the cooking, and the cooking finish is improved, for example, the burnt is moderate.

  Further, reference value storage means for storing, as a reference value, a value detected by the weight sensor 13 when the object to be cooked 34 is not housed in the housing place, [initial weight = (after the start of cooking is instructed) And an initial weight storage means for calculating and storing an initial weight using an expression of (the detected value of the weight sensor 13 before starting heating) − (the reference value)]. Decrease rate = {the initial weight− (the detection value of the weight sensor 13−the reference value)} ÷ the initial weight × 100] is used to obtain the weight decrease rate after the start of heating, and the weight decrease after the start of heating. When the rate reaches a predetermined cooking completion determination target value, the heating is controlled to end, and when the heat absorption rate is determined to be high, the cooking completion determination target value is changed to a low value, It is determined that the heat absorption rate is low. Preferably, the cooking completion determination target value is changed to a higher value when set. In this case, the cooking completion determination target value is corrected according to the difference in heat absorption rate resulting from the difference in color of the object to be cooked 34, so that the cooking finish can be made better.

  Further, the storage location includes an opening for taking in and out the object to be cooked 34, a grill door 31 for closing the opening, and a grill door open / close detecting means 12 for detecting the open / closed state of the grill door 31. The grill door 30 is configured to heat only when the grill door opening / closing detection means 12 detects the closed state of the grill door 31, and the door opening / closing detection means 12 is closed to the grill door 31. It is preferable that the initial weight is stored in the initial weight storage means only when it is detected. In this case, since the grill door 31 is in a closed state both when the initial weight is stored and during the heating for determining the weight reduction rate, accurate weight measurement is possible, and the cooking finish is improved. Can be.

  Further, a power switch 15 for turning on / off the power to the control unit 10 is provided, and the power switch 15 is turned on while the grill door opening / closing detection means 12 detects the closed state of the grill door 31. Or at any time when the grill door opening / closing detection means 12 detects that the grill door 31 has changed from the open state to the closed state while the power to the control unit 10 is ON. The latest value of the detection value of the weight sensor 13 is sequentially stored, and when the grill door opening / closing detection means 12 detects that the grill door 31 has changed from the closed state to the open state, the stored weight is sequentially stored. The detection value of the sensor 13 is compared with a provisional reference value stored in advance in the control unit 10, and the difference between the detection value of the weight sensor 13 stored in sequence and the provisional reference value is a predetermined allowable value. Preferably constituted the detection value of the weight sensor 13 described above are sequentially stored to the reference value when Ri small. In this case, since the weight of the object to be cooked 34 is detected when the power switch 15 is turned on or the grill door 31 is opened / closed, the user does not need a weight determination command. It is easy to use and can perform cooking control without fear of incorrect information being input.

  Further, when the grill door opening / closing detection means 12 detects that the grill door 31 has changed from the closed state to the open state, the detection value of the weight sensor 13 stored in sequence and the temporary reference value stored in advance are stored. And when the difference between the detected value of the weight sensor 13 sequentially stored and the provisional reference value is larger than a predetermined allowable value stored in advance, a notification means for notifying that the reference value is abnormal. It is preferable to comprise so that it may be provided. In this case, when past cooked food remains in the grill cabinet 30, or when the tray 37 or the grill net 33 is not inserted, an abnormality is notified, so that a cooking failure due to an operation error can be prevented.

  Further, during the heating, the rate of change per unit time at which the weight of the object to be cooked 34 detected by the weight sensor 13 decreases is smaller than a predetermined decrease rate of change, and the temperature sensor 19 detects the change rate. Judging that the rate of change per unit time at which the heating temperature rises is greater than the specified rate of increase is the start of scoring, so that heating is stopped when a predetermined time has elapsed from the start of scoring or the start of scoring It is preferable to configure. In this case, by stopping the heating based on the determination result at the start of burning of the cooking object 34, the degree of burning of the cooking object 34 can be moderated, and the cooking finish is improved. be able to.

  Moreover, it is preferable to provide display means for displaying the initial weight and the weight reduction rate on a display unit. In this case, since the user can perform cooking while recognizing the displayed initial weight and the weight reduction rate, it is possible to prevent a cooking failure due to an erroneous menu selection due to an operation error. In addition, checking the weight reduction rate means checking the water reduction rate of the object to be cooked 34, and the water reduction rate can be grasped without opening the grill door 31, so that the cooking finish is improved. it can.

  In addition, in the case where a dedicated pan for grilling to perform Dutch oven cooking is stored in the storage location, the control unit 10 stores a temporary reference value for the dedicated pan and an allowable value for the dedicated pan, Either a dedicated pan detecting means for detecting that the dedicated pan is accommodated in the accommodating place or a dedicated pan selecting means for manually selecting and inputting the use of the dedicated pan is provided, and the dedicated pan is located in the accommodating place. When the dedicated pan detecting means detects that it is contained in the container, or when the dedicated pan selecting means selects and inputs the use of the dedicated pan, the temporary reference value for the dedicated pot is used as the temporary reference value. It is preferable that the above-mentioned tolerance value for the dedicated pan is used as the predetermined tolerance value. In this case, when cooking in a dutch oven using a special pan, the standard value corresponding to the use of the special pan is selected, so the proper weight can be detected according to the use or non-use of the special pan, Can prevent cooking failure.

  According to the first aspect of the present invention, the level of the heat absorption rate of the object to be cooked is determined based on the detection value of the temperature sensor and the detection value of the weight sensor, and is switched according to the level of the heat absorption rate. By changing the temperature setting, it is possible to execute control to perform proper heat cooking regardless of the color, thickness, and surface roughness of the object to be cooked, and to improve the finish of cooking. It is.

  In addition to the effect of the first aspect, the invention according to the second aspect can correct the target value for completion of cooking according to the difference in heat absorption rate caused by the difference in shade of the food.

  In addition to the effect of the second aspect, the invention according to the third aspect enables accurate weight measurement of the object to be cooked with the grill door closed.

  In addition to the effect of the third aspect, the invention according to the fourth aspect is easy to use by detecting the weight of the object to be cooked by turning on the power switch or opening / closing the grill door. Cooking control without the possibility of input of information.

  According to the fifth aspect of the invention, in addition to the effect of the fourth aspect, it is possible to prevent a cooking failure due to an operation error by notifying the reading error of the reference value of the weight sensor.

  In addition to the effect of any of claims 1 to 5, the invention according to claim 6 moderates the degree of scorching of the cooked food by stopping heating based on the judgment result at the start of scorching of the cooked food. Can be.

According to the seventh aspect of the invention, in addition to the effect of any one of the second to fifth aspects, the user can perform cooking while recognizing the displayed initial weight and the weight reduction rate. It is possible to prevent cooking failures due to mistakes in menu selection due to mistakes and to easily grasp the water reduction rate of the food to be cooked without opening the grill door.

In addition to the effect of claim 4 or 5 , the invention of claim 8 can detect the appropriate weight according to the use or non-use of the dedicated pan when cooking the Dutch oven using the dedicated pan, The finish of Dutch oven cooking can be made better.

It is a perspective view of the heating cooker with a grill of one embodiment of the present invention. It is a schematic front view inside a grill warehouse same as the above. It is a schematic block diagram of a grill same as the above. It is a flowchart explaining the reading sequence of the weight reference value except the to-be-cooked object same as the above. It is a flowchart explaining the reading sequence of the initial weight of a to-be-cooked object same as the above. It is explanatory drawing of an operation panel same as the above. It is a flowchart of the combustion sequence by "manual" mode same as the above. It is a flowchart of the combustion sequence by "auto" mode same as the above. It is a flowchart of the combustion sequence by "Dutch oven" mode same as the above. It is a flowchart of the sequence after cooking completion same as the above. (A) is a graph which shows the relationship between exhaust gas temperature and combustion time, (b) is a graph which shows the relationship between a weight decreasing rate and combustion time. (A) is a graph which shows the relationship between exhaust gas temperature and combustion time, (b) is a graph which shows the relationship between a weight decreasing rate and combustion time.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  In the embodiment described below, the heating cooker is a grill provided in a gas stove with a grill. It is not necessary to be a grill for taking in and out the food from the front of the device, cooking temperature detecting means for detecting the heating temperature that changes according to the temperature change of the food to be cooked, and the weight of the food to be cooked Any type of cooking device may be used as long as the cooking device has a structure including a weight sensor for detecting the above.

  As shown in FIG. 1, the glass top plate 11 constituting the top surface portion of the gas stove 1 is provided with a plurality of stove portions 2 made of a stove burner. In the illustrated example, as the stove part 2, a left stove part 2 provided with a standard burner 2a is provided in front of the left side, and a rear stove part 2 provided with a small burner 2b is located at the back in the center in the left-right direction. The right stove part 2 provided with the high thermal power burner 2c is provided in front of the right side.

  On the top surface of the top plate 11, there are provided five virtues 22 in which the stove burners 2a to 2c are arranged in the center. Therefore, in this embodiment, each Gotoku 22 becomes a mounting part for mounting when heating a pan etc. with the stove burners 2a-2c.

  As shown in FIGS. 1, 2, and 3, the grill 3 includes a grill cabinet 30 in which a grill burner 32 is provided in the gas stove 1. The grill 3 heats and cooks the cooking object 34 accommodated in the grill warehouse 30 by radiation heating or convection heating, and can be switched to at least two levels of heating power. The front opening for taking in and out of the cooking object 34 of the grill warehouse 30 is closed by a grill door 31 provided on the front surface of the gas stove 1 so as to be freely opened and closed. A saucer 37 is provided in the lower part of the grill cabinet 30, and a grill net 33 is placed on the saucer 37 as a placement unit for placing the cooked product 34. The cooked product 34 is placed on the grill burner 32. It is configured to heat. An exhaust passage (not shown) for exhausting the combustion exhaust gas of the grill burner 32 to the outside of the machine is connected to the rear side of the grill warehouse 30 so as to extend upward, and the combustion exhaust gas of the grill burner 32 is exhausted through the exhaust passage. It is configured to lead to the mouth 70. The grill burner 32 is disposed in the upper part of the grill warehouse 30 and heats the upper surface of the cooking object 34 placed on the grill 33, and the lower surface of the cooking object 34 is disposed in the lower part of the grill warehouse 30. And a pair of left and right lower burners 32b for heating the heater.

  The grill setting input operation panel 6 for inputting cooking settings by the grill 3, as shown in FIG. 6, is an ignition / fire extinguishing switch 61 for igniting / extinguishing the grill 3, and cooking by the grill 3. Timer increase / decrease switch 62 for setting the time (firing time), thermal power switch 63 for switching the heating power of the upper and lower fires, a menu to be fired, and a firing control corresponding to the corresponding fired product is selected. Menu switch 64, an a la carte menu (to be described later), and an a la carte menu switch 65, a timer increase / decrease switch 62, a heat changeover switch 63, a menu switch 64, an a la carte menu switch for selecting firing control corresponding to the corresponding a la carte menu A cancel switch 66 etc. for canceling each input set by operating 65 etc. Eteiru.

  Next, the case where the grill 3 is used will be described. The upper part of the front surface of the movable member provided with the operation panel 6 is pushed so that the operation panel 6 protrudes forward from the front surface of the main body and is exposed upward as shown in FIG. By pressing the menu switch 64, the a la carte menu switch 65, or the timer increase / decrease switch 62 shown with a finger, the cooking menu, the a la carte menu, the cooking time, etc. are input for grill cooking, and then the ignition / fire extinguishing switch 61 is pressed with the finger. The grill 3 is ignited by pushing and performing an ignition input operation. Thus, automatic grill cooking is performed by controlling the heating power, cooking time, and the like by the control unit 10 (see FIG. 3) so that the intended grill cooking is performed. When the input of the cooking setting is finished, the upper part of the front surface of the movable member is pushed and stored so that the operation panel 6 is not exposed to the outside, whereby the operation panel 6 can be prevented from becoming dirty during cooking by the grill 3. When it is desired to stop the automatic cooking during the automatic cooking in the grill 3, the automatic cooking can be stopped by extinguishing the fire by pressing the ignition / extinguishing switch 61 with a finger.

  The menus that can be switched by the menu switch 64 include “sake ware”, “fillet”, and “dried fish”, and the à la carte menu switch 65 can be selected from three types of “dutch oven”, “pizza”, and “baked rice ball”. ing. In addition, when “pizza” is selected from the à la carte menu, an accessory metal cooking plate (not shown) is placed on the grill 33, and bread, pizza, etc. are placed on the cooking plate. It is recommended in the instruction manual that the cooking object 34 is placed and cooked, and the user uses the accessory cooking plate according to this and operates the à la carte menu switch 65 as necessary. Cook.

  In the grill 3, a temperature rise rate (referred to as a temperature rise gradient) that changes in accordance with a difference in the mounting state of the cooking object 34 on the grill 33 in the initial stage after the heating by the grill burner 32 is started. A cooking temperature sensor 19 (see FIG. 3) for cooking and a weight sensor 13 for detecting the weight of the object to be cooked 34 are provided, and the control unit 10 detects the detected value of the temperature sensor 19 and the weight sensor 13. Based on the value, the switching temperature is changed and set as will be described later, and the cooking completion determination target value until the heating of the object to be cooked 34 is obtained. The cooking completion determination target value applies a predetermined value or obtains a value from a predetermined calculation formula depending on the type of cooking menu and the placement state of the cooking object 34.

  The position where the temperature sensor 19 is provided is a position where the combustion exhaust gas of each of the upper burner 32a and the pair of left and right lower burners 32b flows, and after the heating is started, the cooking object 34 placed on the grill 33 is placed. It is a location where the temperature increase gradient differs depending on the placement state and the magnitude of the thermal load of the object to be cooked 34. The position where the weight sensor 13 is provided is not particularly limited.

  Hereinafter, heating control of the grill 3 of the present embodiment will be described.

  The grill door 31 is connected to the moving rail 25 (see FIG. 2). The moving rail 25 is supported so as to be movable back and forth along a fixed rail (not shown). The tray 37 placed on the moving rail 25 and the grill 33 placed on the tray 37 are moved back and forth as the user pulls out or pushes in with the handle. .

  As shown in FIG. 3, the grill cabinet 30 includes a micro switch or the like as the grill door open / close detection means 12 that detects the open / close state of the grill door 31. The grill door opening / closing detection means 12 detects whether the grill 33 placed on the tray 37 on the moving rail 25 is in a position corresponding to the state where the grill door 31 is closed, Opening and closing of the grill door 31 can be detected, and combustion is not started when the grill door 31 is not closed (see FIGS. 4 and 5). Accordingly, when the following control is executed in a state where the grill door 31 is not closed, the temperature sensor 19 detects the temperature in a state where the flow state of the exhaust gas in the grill warehouse 30 is different from the fully closed state of the grill door 31. This prevents the cooking time and the following heating amount switching temperature from being set inappropriately.

  In addition, the control unit 10 (see FIG. 3) switches the heating power to the lower heating power when the heating temperature reaches the switching temperature after the start of heating, and also detects the value detected by the temperature sensor 19 and the weight sensor 13. The determination function which determines the level of the heat absorption rate of the to-be-cooked object 34 based on a detected value is provided. This determination function changes and sets the switching temperature to a high value when it is determined that the heat absorption rate of the cooking object 34 is low as described later, and changes and sets the switching temperature to a low value when it is determined that the heat absorption rate is high. To do.

  The control unit 10 is provided with means for calculating the weight reduction rate of the cooking object 34 after the start of heating. Here, as will be described later, the initial weight is calculated using an equation: [initial weight = (detected value of weight sensor 13 before starting cooking after instructed to start cooking) − (reference value)]. . Further, the weight reduction rate after the start of heating is calculated using the formula [weight reduction rate = {the initial weight− (the detected value of the weight sensor 13−the reference value)} ÷ the initial weight × 100]. . The control unit 10 controls to end the heating when the weight reduction rate after the start of heating reaches a predetermined cooking completion determination target value.

  Furthermore, the control unit 10 has a function of changing and setting the cooking completion determination target value to a low value when it is determined that the heat absorption rate of the cooking object 34 is high. In addition, it is good also as a structure provided with the function which changes and sets the target value for cooking completion determination to a high value, when it determines with a heat absorption rate being low.

  Hereinafter, the change setting of the switching temperature based on the temperature increase gradient and the weight decrease gradient and the change setting of the target weight reduction rate by the control unit 10 will be sequentially described.

  FIG. 4 is a flowchart of a reference value reading sequence for storing the detection value of the weight sensor 13 when the cooking object 34 is not accommodated in the grill 30 as a reference value.

  First, when the power switch 15 is turned on (step S1), the opening / closing of the grill door 31 by the grill door opening / closing detection means 12 is checked (step S2). If the grill door 31 is closed at this time, every 1 second. Ten values detected by the weight sensor 13 are continuously stored in the memory (step S3). At this time, the latest ten sensor data are always stored by overwriting the first data in the eleventh. If an ignition command is issued while the grill door 31 is open, a buzzer is sounded to generate a warning sound (steps S2a → S2b), and the process returns to step S2. Thereby, combustion can be suppressed in the state where the grill door 31 is opened.

  Thereafter, when the grill door 31 is opened, the data 2 seconds before the grill door 31 is opened is stored as V1 (steps S4 → S5). In addition, it is not limited to 2 seconds, You may memorize | store as V1 the average value before 2 seconds-5 seconds ago.

  At this time, it is determined whether or not the stored V1 is in the range of Vs−α <V1 <Vs + α. Vs is a value stored in advance as a reference value corresponding to the weight when nothing is placed on the grill 33 as the cooking object 34, for example, 500 g. α is a predetermined allowable value, for example, 50 g. Thus, when V1 is smaller than the value obtained by adding α to Vs and larger than the value obtained by subtracting α from Vs, it is assumed that nothing is placed on the grill 33 as the cooking object 34. This V1 is stored as the actual reference value Vs ′ of the grill 33, which is used particularly in the following control (step S7). That is, when the power switch 15 is in the ON state and the grill door 31 is closed and a value after a predetermined time has elapsed, the value is compared with the reference value Vs. If the difference from the reference value Vs is small, Vs ′ is set as the actual reference value. Remember.

  On the other hand, when V1 is equal to or higher than (Vs + α) or equal to or lower than (Vs−α), a “reference value reading abnormality warning” is issued (step S6a), an error is determined, and the process returns to step S2. At this time, if the cooked food 34 that has already been cooked is placed on the grill 33, the grill door 31 is once closed, and after 2 seconds or more have passed, the grill door 31 is again opened. Will be opened.

  As described above, when the actual reference value Vs ′ of the grill 33 is stored, the process proceeds from FIG. 4 to FIG. 5.

  FIG. 5 is a flowchart of a sequence for reading the initial weight Va of the object to be cooked 34.

  As described above, after storing the actual reference value Vs ′, the food sensor 34 is placed on the grill 33 and then the weight sensor 13 at the time when 2 seconds have passed since the grill door 31 is closed. Is stored as V2 (step S10 → S11). The average value from 1 second to 2 seconds after the grill door 31 is closed may be stored as V2.

  Then, the value detected by the weight sensor 13 is compared with the actual reference value Vs ′, the initial weight is calculated from Va = V2−Vs ′, stored, and displayed on the display unit 16 (see FIG. 3) (step S12). ). At this time, if Va <0, an error determination may be made, or a warning with an electronic sound may be given when displaying the weight. Thereafter, after the grill door 31 is closed, the user selects cooking modes of “manual”, “auto”, and “dutch oven” (steps S13 → S14). If an ignition command is issued while the grill door 31 is open, a buzzer or the like is sounded to generate a warning sound (step S10a → S10b), and the process returns to step S10. Moreover, also when there is no ignition command after selecting cooking mode, it returns to step S10. Thereby, combustion in the state where the grill door 31 is opened can be suppressed.

When the grill burner is ignited by operating the ignition / fire extinguishing switch 61 after completion of the selection of the cooking mode (step S15), combustion control according to the selected mode is executed. In this example, the “auto” mode is selected by selecting the menu with the menu switch 64, the “dutch oven” mode is selected by turning on the Dutch oven display with the à la carte menu switch 65, and the “auto” mode is also set to “dutch oven”. When the “mode” is not selected, the following control is performed assuming that the “manual” mode is selected (steps S 16 and S 17).
<When “Manual” mode is selected>
When the “manual” mode is selected, the combustion power of the grill burner is increased according to the combustion control by the grill combustion timer and the temperature gradient αt and the weight gradient αv when a predetermined time Δt has elapsed after ignition. Combustion control is performed based on a switching temperature correction process in which a switching temperature that is a threshold value for switching to lower burner heating power = weak is changed.

  FIG. 7 is a flowchart of the combustion sequence in the “manual” mode.

  First, the temperature detected by the temperature sensor 19 (see FIG. 3) before the start of combustion is stored (step S20), and the high-cut temperature TH for preventing overheating is calculated as (TH = 0.35 × Ta + 190) (step). S21). The controller 10 stops the combustion when the temperature detected by the temperature sensor 19 becomes higher than the high cut temperature TH during the combustion of the grill burner. At this time, the switching temperature Ts of the heating power of the grill burner is set to “medium” (= TH−20 ° C.).

  Thereafter, when the ignition process is performed (step S22), the gas valve is opened and both the upper burner thermal power and the lower burner thermal power are set to “strong”. However, after ignition, it can be appropriately changed by the thermal power switch 63. is there. If ignition is not confirmed, an error is stopped.

  Simultaneously with the ignition process, the grill combustion timer starts counting. In the “manual” mode, the timer time is set to 8 minutes in advance, but can be changed between 1 minute and 18 minutes by operating the timer increase / decrease switch 62.

  After the ignition process, until a predetermined time Δt (for example, 3 minutes) elapses, the weight data measured on the weight display unit (not shown) based on the value detected by the weight sensor 13 in step S24a, and the weight Based on the value detected by the sensor 13, the weight reduction rate display section (not shown) displays the calculated weight reduction rate (= {initial weight− (detected value of the weight sensor 13−reference value)} ÷ initial weight × 100). Display. Further, the remaining time of the grill combustion timer is displayed on the timer display section (FIG. 6) by subtracting the time for heating by the grill burner after ignition from the set grill combustion timer value.

  In the “manual” mode, the grill combustion timer is set to 8 minutes in advance. However, when the temperature detected by the temperature sensor 19 at the time of ignition processing is 80 ° C. or higher, the timer is changed to 6 minutes. It is comprised so that. Moreover, you may comprise so that the control part 10 may change and set the value of the timer for grill combustion according to the initial weight Va of the to-be-cooked object 34. FIG.

  After the ignition process, after a lapse of a predetermined time Δt (for example, 3 minutes), the process proceeds to step S25 to calculate the temperature gradient αt that is the rate of increase in the temperature detected by the temperature sensor 19, and to the weight sensor 13. On the basis of the obtained temperature gradient αt and weight gradient αv, the thermal power of the grill burner is set to the upper burner thermal power = weak / lower burner according to the following [Table 1] based on the calculated temperature gradient αt and weight gradient αv. A switching temperature correction process is performed to change and set the switching temperature, which is a threshold for switching to thermal power = weak.

  In the above [Table 1], the temperature gradient αt is divided into two stages when the temperature gradient αt is large and small, and indicates that the temperature rise is faster when the temperature gradient αt is large than when it is small. Yes. In addition, the weight gradient αv is also divided into two stages, when the weight gradient αv is large and when the weight gradient αv is small. When the weight gradient αv is large, the weight decrease rate is faster than when the weight gradient αv is small. The temperature gradient αt and the weight gradient αv are not limited to two stages, and may be divided into three or more stages.

  Further, in [Table 1], in the first state where the temperature gradient αt is large and the weight gradient αv is large, the cooked object 34 is light, but the heat absorption rate is determined to be a standard level, and the switching temperature is “medium”. The setting is maintained. When the setting of the switching temperature “medium” is maintained, the setting of the switching temperature Ts = TH−20 ° C. is maintained.

  In the above [Table 1], in the second state where the temperature gradient αt is large and the weight gradient αv is small, it is determined that the heat absorption rate is low. When the heat absorption rate is low, the exhaust gas temperature is set to improve the scoring. Since it is necessary to continue the state where the temperature difference from the food to be cooked 34 is large for a long time, the switching temperature from the high fire to the low fire is changed to “high”. When the switching temperature is changed and set to “high”, the switching temperature is changed and set to Ts = TH−10 ° C. For example, in FIG. 11A, the switching temperature is changed from the target value L1 to the target value L2.

  As a result, when cooking a whitish fish like `` Aji '', it was difficult to get burnt because it was switched to low heat at a low temperature where it was difficult to burn to whitish fish. By changing the low-fire switching temperature to a higher value as in the example, it becomes possible to burn appropriately.

  In Table 1 above, the third state in which the temperature gradient αt is small and the weight gradient αv is large is determined to have a high heat absorption rate. When the heat absorption rate is high, in order to suppress scorching, the exhaust gas temperature Since it is necessary to prevent the temperature difference from the food to be cooked 34 from becoming too large due to excessive increase in temperature, the switching temperature is set to “low”. When the switching temperature is set to “low”, the switching temperature is set to Ts = TH−30 ° C.

  Further, in [Table 1], in the fourth state where the temperature gradient αt is small and the weight gradient αv is small, the cooked object 34 is heavy, but the heat absorption rate is determined to be a standard level, and the switching temperature is “medium”. The setting is maintained. When the setting of the switching temperature “medium” is maintained, the setting of the switching temperature Ts = TH−20 ° C. is maintained.

  After detecting that the exhaust temperature is equal to or higher than the switching temperature Ts after performing the change setting of the switching temperature according to the heat absorption rate (heat exchange rate) of the object to be cooked 34 as described above (step S26), the grill burner The thermal power is switched to upper burner thermal power = weak / lower burner thermal power = weak (step S27).

Thereafter, when the temperature sensor 19 becomes equal to or higher than the high cut temperature TH, a fire extinguishing process is executed to notify the temperature abnormality (steps S28 → S29). On the other hand, when the temperature sensor 19 is equal to or lower than TH and the grill combustion timer expires (step S27a), the fire extinguishing process is executed and a time-up notification (for example, notification by a ten-second electronic sound “pipipi”) is performed (step S27b). ). If there is a grill burner thermal power switching command before the time is up, thermal power switching is performed in accordance with the command (step S27c → S27d), and the process returns to step S24. If there is a fire extinguishing command, fire extinguishing processing is executed (step S27e → 27f).
<When “Auto” mode is selected>
When the “auto” mode is selected, as in the case where the “manual” mode is selected, the combustion control by the grill combustion timer and the temperature gradient αt and the weight gradient αv when a predetermined time Δt has elapsed after ignition are determined. Thus, the combustion control based on the switching temperature correction process for changing the switching temperature, which is a threshold value for switching the heating power of the grill burner to upper burner heating power = weak / lower burner heating power = weak, is performed. In addition, the weight reduction rate (= {initial weight− (detected value of weight sensor 13−reference value)} ÷ initial weight × 100) is set to the target weight reduction rate Gs corresponding to the menu selected by the menu switch 64. When it reaches, fire extinguishing process is executed. The target weight reduction rate Gs is corrected by a target weight reduction rate correction process executed in accordance with the temperature gradient αt and the weight gradient αv when a predetermined time has elapsed after ignition.

  FIG. 8 is a flowchart of the combustion sequence in the “auto” mode. Here, it is assumed that the figure is selected as the menu.

  First, the temperature Ta detected by the temperature sensor 19 (see FIG. 3) before the start of combustion is stored (step S30), and the high cut temperature TH is calculated as TH = 0.35 × Ta + 190 (step S31). The controller 10 stops combustion when the temperature detected by the temperature sensor 19 becomes TH or higher during combustion of the grill burner. Similarly to the “manual” mode, the switching temperature Ts of the heating power of the grill burner is set to “medium” (= TH−20 ° C.).

  Thereafter, when the ignition process is performed (step S32), both the upper burner thermal power and the lower burner thermal power are set to “strong”, but the upper burner thermal power and the lower burner thermal power may be different thermal powers. If ignition is not confirmed, an error is stopped.

  After the ignition process, until a predetermined time Δt (for example, 3 minutes) elapses, the process proceeds to step S33a, in addition to the display of the menu selected by the menu switch 64, based on the detected value by the weight sensor 13. Based on the display of the weight data measured on the weight display unit (not shown) and the value detected by the weight sensor 13, the weight reduction rate is displayed on the weight reduction rate display unit (not shown).

  After the ignition process, after a predetermined time Δt (for example, 3 minutes) has passed, the process proceeds to step S34, where the temperature sensor α calculates the temperature gradient αt, which is the rate of increase in the detected temperature, and the weight sensor 13 performs. The weight gradient αv, which is a decrease rate of the detected value, is continuously calculated, and the thermal power of the grill burner is set to the upper burner thermal power = low / lower burner thermal power = weak according to the above [Table 1] based on the temperature gradient αt and the weight gradient αv. A switching temperature correction process is performed for changing the switching temperature, which is a threshold value for switching to. The process up to this point is the same as when the “manual” mode is selected.

  The difference from the “manual” mode is that the target weight reduction rate Gs is corrected according to [Table 1] based on the temperature gradient αt and the weight gradient αv (step S34).

  For example, in the case where the fish to be cooked 34 is a fish such as “Sanma”, the temperature rises slowly and the temperature gradient αt is small because it easily absorbs heat, and as a result, the reduction of moisture is promoted. Therefore, the weight decrease rate is fast and the weight gradient αv is large. That is, when the temperature gradient αt is small and the weight gradient αv is large (the above [Table 1]), it is determined that the fish has a good (high) heat absorption rate, and the target value is displayed. Is corrected to Gs = 15% (target value L3 in FIG. 11B) from Gs = 20% (target value L4 in FIG. 11B) set as the standard value when Appropriate heating control is possible.

  In the first, second, and fourth states in [Table 1], the target weight reduction rate Gs is not corrected, but the target weight reduction rate Gs is increased in the second state. Correction processing may be executed. By doing so, even a fish such as a horse mackerel having a low heat absorption rate is heated firmly, and more appropriate heating control can be performed. In [Table 1], the classification of the weight gradient αv and the temperature gradient αt in the correction process of the target weight reduction rate Gs is not limited to two stages, and may be classified into three or more stages.

  After detecting the target weight reduction rate Gs as described above and detecting that the exhaust gas temperature is equal to or higher than the switching temperature Ts (step S35), the thermal power of the grill burner is the upper burner thermal power = weak / lower burner thermal power = weak. (Step S36).

  And when the temperature sensor 19 becomes more than TH, a fire extinguishing process is performed and temperature abnormality notification is performed (step S37-> S38). If the weight reduction rate is equal to or less than the target weight reduction rate Gs and there is a thermal power switching command for the grill burner, a warning is given that thermal power switching is not executed (step S36c → S36d), and the process returns to step S33. If there is a fire extinguishing command at this time, the fire extinguishing process is executed (step S36e → 36f).

On the other hand, when the temperature sensor 19 is equal to or lower than TH and the weight reduction rate is equal to or higher than the target weight reduction rate Gs, a fire extinguishing process is performed and a cooking end notification (for example, notification by a beeping sound for 3 seconds) is performed. (Step S36a → S36b), the process proceeds to FIG.
<When “Dutch Oven” mode is selected>
In the “Dutch oven” mode, instead of the grill 33, a dedicated pan such as a pan with a lid is placed in the grill cabinet 30, and the combustion gas is directly applied to the dedicated pan for cooking in the oven. When the “Dutch oven” mode is selected, the switching temperature Ts is set to Ts corresponding to the high cut temperature TH, and the switching temperature Ts corresponding to the temperature gradient αt and the weight gradient αv is not corrected. In addition, when the initial weight Va is large, the switching temperature Ts is set higher than when the initial weight Va is small, so that heat can be transferred to the center and cooked even when the content of the dedicated pan is large. It may be configured. When the “Dutch oven” mode is selected, the timer is set for 1 to 25 minutes by operating the timer increase / decrease switch 62 (FIG. 6), and cooking is performed.

  FIG. 9 is a flowchart of the combustion sequence in the “Dutch oven” mode.

  First, the temperature Ta detected by the temperature sensor 19 (see FIG. 3) before the start of combustion is stored (step S40), and the high cut temperature TH is calculated as TH = 0.35 × Ta + 210 (step S41). When the temperature detected by the temperature sensor 19 becomes equal to or higher than TH during combustion of the grill burner, the combustion is stopped. The high cut temperature TH at this time is determined by another “manual” mode using the grill 33 or “automatic”. It is set higher than in the mode. Further, the switching temperature Ts is set to Ts = TH−30 according to the high cut temperature TH as described above.

  Thereafter, when ignition is performed (step S42), both the upper burner thermal power and the lower burner thermal power are set to be strong, but the upper burner thermal power and the lower burner thermal power may be different. If ignition is not confirmed, an error is stopped.

  Simultaneously with the ignition process, the grill combustion timer starts counting (step S43). In the “Dutch oven” mode, the timer increase / decrease switch 62 is operated so that it can be changed between 1 minute and 25 minutes.

  At this time, a message indicating that the cooking mode is the “Dutch oven” mode is displayed, and the timer display unit (FIG. 6) subtracts the time when the grill burner is heated after ignition from the set grill combustion timer value. The remaining time of the grill combustion timer is displayed (step S44).

  Thereafter, when it is detected that the exhaust temperature is equal to or higher than the switching temperature Ts, the heating power of the grill burner is switched to upper burner thermal power = weak / lower burner thermal power = weak (steps S45 → S46).

  And when the temperature sensor 19 becomes TH or more (step S47), a fire extinguishing process is performed and temperature abnormality notification is performed (step S48).

  On the other hand, when the grill combustion timer expires while the temperature sensor 19 is equal to or lower than TH (step S47a), the fire extinguishing process is executed, and cooking completion notification (for example, notification by a three-second electronic sound "pipipi") is performed ( Step S47b). If there is a fire burner switching command for the grill burner before the time is up, a warning that switching is not possible is issued (step S47c → S47d), and the process returns to step S44. If there is a fire extinguishing command at this time, the fire extinguishing process is executed (step S47e → 47f), and the process proceeds to FIG.

  FIG. 10 is a flowchart of the sequence after the completion of cooking.

  After performing the fire extinguishing process, the cooking end process shown in FIG. 10 is performed. In this cooking end process, it is checked whether the grill door 31 has been opened after cooking. When the grill door 31 is not opened, the cooking end notification is performed every 30 seconds. When the grill door 31 is opened, or when two minutes or more have elapsed after the cooking ends, the subsequent cooking end notification is not performed. It is configured as follows.

  That is, at the end of cooking, the notification count counter C is reset to C = 0 (step S50). Further, the grill door monitoring timer is reset and the grill door monitoring timer is started (step S51). Thereafter, when the grill door 31 is opened, the cooking end process is ended. On the other hand, when the value of the grill door monitoring timer reaches 30 seconds with the grill door 31 kept closed (steps S52 → S53), a cooking completion notification (for example, a three-second electronic sound “beep”) is issued. (Step S54), "1" is added to the counter C for counting the number of notifications (Step S55). If the notification count counter C is less than "4", the process returns from step S56 to S51, and the process is repeated from the step of resetting the grill door monitoring timer and starting the grill door monitoring timer.

  When the notification count counter C reaches 4 or more, the cooking end process is terminated.

  When heating is started without placing anything to be cooked 34, the temperature sensor 19 becomes equal to or higher than TH, fire extinguishing processing is executed, and temperature abnormality notification is performed.

  According to the said structure, there exist the following effects.

  (1) When changing the setting of the switching temperature, which is a threshold value for switching the thermal power of the grill burner 32 to upper burner thermal power = weak / lower burner thermal power = weak, heat absorption of the cooking object 34 based on the temperature gradient αt and the weight gradient αv The level of the rate was determined, and the switching temperature correction process was performed according to the heat absorption rate (see [Table 1], FIG. 11A). Thereby, it becomes possible to set the heating power according to the level of the heat absorption rate due to the difference in color of the object to be cooked 34, and the finish of cooking is good, for example, the burnt is moderate. Moreover, by performing the heating control according to the heat absorption rate, the temperature distribution of the fish is made as uniform as possible, and the uneven heating of the cooking object 34 is reduced.

  (2) Further, when the heat absorption rate of the object to be cooked 34 is high, correction processing is performed so that the target weight reduction rate Gs becomes small (see the third state of [Table 1], FIG. 11B). Thereby, for example, the finishing of the black fish “Sanma” can be improved. In the second state of [Table 1], when it is determined that the heat absorption rate is low, correction processing may be performed so that the target weight reduction rate Gs increases. In this case, for example, the finishing of white fish “Aji” can be made better.

  (3) In calculating the weight reduction rate of the cooking object 34 during heating, the initial weight is stored only when the grill door 31 is in a closed state (step S12 in FIG. 5), and the weight is reduced from this initial weight. Since the rate is calculated (steps S24a and S25 in FIG. 7 and steps S33a and S34 in FIG. 8), accurate weight measurement during heating is possible, and the weight reduction rate is a predetermined target value for determining completion of cooking. When the temperature reaches the value, the control operation for ending the heating is performed more accurately.

  (4) When obtaining the reference value from the detection value of the weight sensor 13 when the cooking object 34 is not accommodated in the grill cabinet 30, when the grill door 31 is closed and the power switch 15 is turned ON, or When the power switch 15 is ON and the grill door 31 is changed from the open state to the closed state, the latest values of the detection values of the weight sensor 13 are sequentially stored (steps S2 and S3 in FIG. 4). When the grill door 31 is changed from the closed state to the open state, the detection value of the weight sensor 13 sequentially stored is compared with the temporary reference value stored in advance in the control unit 10 (step S6 in FIG. 4). When the difference between the sequentially detected value of the weight sensor 13 and the provisional reference value is smaller than the predetermined allowable value (α), the sequentially stored detection value of the weight sensor 13 is stored as a reference value (step S7 in FIG. 4). . When it is larger than the predetermined allowable value (α), an error notification is made that the reference value reading is abnormal (step S6a in FIG. 4).

  As a result, the initial weight of the object to be cooked 34 can be accurately detected in response to the ON operation of the power switch 15 or the opening / closing of the grill door 31, so there is no need to separately issue a weight determination command by the user. Therefore, it is possible to perform heating control that is more convenient and that there is no fear that wrong information is input. In addition, since the user is informed when there is an abnormality such as when past cooked food remains in the grill 30 or when the tray 37 or grill 33 is not inserted, a cooking failure due to an operation error can be prevented. It becomes like this.

  (5) In the “manual” and “auto” cooking modes, the initial weight and the weight reduction rate are displayed (step S24a in FIG. 7 and step S33a in FIG. 8). Thus, cooking can be performed while recognizing the weight reduction rate, so that it is possible to prevent a cooking failure caused by an erroneous menu selection due to an operation error. In addition, checking the weight reduction rate means checking the water reduction rate of the object to be cooked 34. Since the water reduction rate can be grasped without opening the grill door 31, the cooking finish should be made better. Can do.

  FIG. 12 shows another embodiment. As shown in FIG. 12 (a), after the ignition process is performed and the exhaust gas temperature rises after the start of heating, the temperature gradient αt gradually decreases as cooking progresses. In the vicinity of L5 (200 ° C.), the generation of water vapor from the to-be-cooked object 34 decreases as the moisture in the vicinity of the surface of the to-be-cooked object 34 decreases. And if generation | occurrence | production of the water vapor | steam from the to-be-cooked object 34 reduces, temperature (rise) gradient (alpha) t will become large again in the location of (alpha) t1.

  Also, as shown in FIG. 12B, when the generation of water vapor from the object to be cooked 34 is reduced, the weight gradient αv, which is the amount of change in the weight reduction rate (water reduction rate), becomes smaller in the vicinity of the switching temperature target value L6. As the evaporation further proceeds, it becomes flat at the location of αt1.

  Therefore, after the temperature gradient αt gradually decreases, the temperature gradient αt again becomes larger than the predetermined increase rate, and when the weight gradient αv is smaller than the predetermined value, the cooking object 34 is burnt. It can be determined that it is the start time of burning. That is, during heating, the rate of change of weight detected by the weight sensor 13 per unit time is smaller than a predetermined decrease rate of change, and the rate of increase of heating temperature detected by the temperature sensor 19 per unit time is predetermined. Since it can be determined that the time point at which the rate of increase is greater than the start point of burning, a fire extinguishing process is performed and heating is stopped when a predetermined time has elapsed from the burning start point or the burning start point.

  Thus, by stopping heating based on the determination result at the start of scoring of the object to be cooked 34, the degree of scoring of the object to be cooked 34 can be moderated, resulting in better cooking finish. Can be.

  The grill burner is configured to switch the heating power of the burner to upper burner power = weak and lower burner power = weak at the start of scoring or when a predetermined time has elapsed from the start of scoring. You may comprise so that the degree of a burn may be moderate.

  In the embodiment, the grill door opening / closing detection means 12 is provided, and the power switch 15 is turned on when the grill door 31 is closed, or the grill door 31 is detected closed when the power switch 15 is turned on. The actual reference value is measured and stored (steps S1 to S7 in FIG. 4). For example, instead of the grill door opening / closing detection means 12, an actual reference value measurement storage switch is provided. Alternatively, the actual reference value may be measured and stored by operating the actual reference value measurement storage switch.

  In the embodiment, the switching temperature Ts in the “Dutch oven” mode is set to Ts corresponding to the high cut temperature TH. However, as another embodiment, correction processing of the switching temperature Ts corresponding to the temperature gradient αt and the weight gradient αv is performed. May be performed. As an example, the control unit 10 stores a predetermined “temporary reference value for the dedicated pan” and “allowable value for the dedicated pan”, and detects that the dedicated pan is stored in the grill 30. A dedicated pan detection means is provided, or a dedicated pan selection input unit for manually selecting and inputting the use of the dedicated pan is provided. When the dedicated pan detecting means detects that the dedicated pan has been stored in the grill cabinet 30 or when the dedicated pan selecting unit inputs that the dedicated pan is to be used, "Reference value" is used as the temporary reference value (Vs) in step S5 in FIG. 4, and the stored "dedicated pan tolerance value" is used as the predetermined tolerance value (α) in step S6 in FIG. You may comprise as follows. The “temporary reference value for the dedicated pan” is a weight value stored in a state where the cooking object 34 is not contained in the dedicated pan. The “dedicated pan allowable value” is not necessarily different from the “predetermined allowable value α”, and may be set to the same value as the “predetermined allowable value α”.

  In this way, in Dutch oven cooking, by using the standard value corresponding to the use of the dedicated pan and detecting the appropriate weight according to the use or non-use of the dedicated pan, other “manual” and “auto” As in the case of selecting the mode, cooking failure can be prevented.

  The heating cooker of the present invention does not need to be the grill 3 for taking in and out the object to be cooked 34 from the front of the device, and the temperature sensor 19 for detecting the heating temperature that rises as the temperature of the object to be cooked 34 increases, and Any type of cooking device may be used as long as the weight sensor 13 detects the weight of the object to be cooked 34.

  Moreover, it is not limited to the case where gas is used as an energy source for heating, and electricity or other energy may be used as an energy source for heating.

DESCRIPTION OF SYMBOLS 1 Gas stove 2 Stove part 3 Grill 6 Operation panel 10 Control part 11 Top plate 12 Grill door opening / closing detection means 13 Weight sensor 15 Power switch 16 Display part 19 Temperature sensor 25 Rail for movement 30 Grill box 31 Grill door 32 Grill burner 33 Grilled net 34 To-be-prepared food 37 Saucepan

Claims (8)

A heating source that can be switched to at least two levels of heating power that is higher or lower and that heats the food to be cooked stored in the housing location by radiant heating or convection heating, and a heating temperature that rises as the temperature of the food to be cooked rises A heating cooker comprising: a temperature sensor for detecting the heating power; and a controller that sets the heating power to a lower heating power when the heating temperature reaches the switching temperature after the start of heating,
A weight sensor for detecting the weight of the cooking object;
The control unit has a determination function for determining the level of the heat absorption rate of the object to be cooked based on the detection value of the temperature sensor and the detection value of the weight sensor, and when determining that the heat absorption rate is low A heating cooker that changes and sets the switching temperature to a high value or changes and sets the switching temperature to a low value when it is determined that the heat absorption rate is high. A reference value storage means for storing, as a reference value, a detection value of the weight sensor when the object to be cooked is not stored in the storage place;
Initial weight storage means for calculating and storing the initial weight using the equation [initial weight = (detected value of the weight sensor before the start of cooking after the start of cooking is instructed) − (reference value)]. And
The control unit obtains the weight reduction rate after the start of heating using the formula [weight reduction rate = {the initial weight− (detected value of the weight sensor−the reference value)} ÷ the initial weight × 100], When the weight reduction rate reaches a predetermined cooking completion determination target value after the start of heating, the heating is controlled to end, and when it is determined that the heat absorption rate is high, the cooking completion determination target value is set low. The cooking device according to claim 1, wherein when the heat absorption rate is determined to be low, the cooking completion determination target value is changed to a high value.   The storage place is composed of a grill cabinet comprising an opening for putting in and out the food, a grill door for closing the opening, and a door open / close detection means for detecting the open / close state of the grill door, The initial weight storage means is heated only when the door opening / closing detection means detects the closed state of the grill door, and only when the door opening / closing detection means detects the closed state of the grill door. The cooking device according to claim 2, wherein the initial weight is stored in the cooking device. A power switch for turning on and off the power to the control unit;
When the power switch is turned ON while the door opening / closing detection means detects the closed state of the grill door, or when the power to the control unit is ON, the door opening / closing detection means From one of the time points when it is detected that the grill door is changed from the open state to the closed state, the latest value of the detection value of the weight sensor is sequentially stored.
When the door open / close detection means detects that the grille door has changed from the closed state to the open state, the detection value of the weight sensor stored in sequence is compared with the temporary reference value stored in advance in the control unit. When the difference between the detected value of the weight sensor stored sequentially and the temporary reference value is smaller than a predetermined allowable value, the detected value of the weight sensor stored sequentially is used as the reference value. The cooking device according to claim 3.   When the door opening / closing detection means detects that the grill door has been opened from the closed state, the detection value of the weight sensor stored in sequence is compared with the provisional reference value stored in advance, When a difference between the detected value of the weight sensor sequentially stored and the temporary reference value is larger than a predetermined allowable value stored in advance, a notification unit that notifies that the reference value is abnormal is provided. The cooking device according to claim 4.   A unit in which the rate of change per unit time in which the weight of the object to be cooked detected by the weight sensor decreases during heating is smaller than a predetermined rate of change, and the heating temperature detected by the temperature sensor increases. 2. The time point at which the rate of change per hour is greater than a predetermined rate of increase is determined to be a burning start time point, and heating is stopped when a predetermined time has elapsed from the burning start time point or the burning start time point. The heating cooker as described in any one of thru | or 5. The cooking device according to any one of claims 2 to 5 , further comprising display means for displaying the initial weight and the weight reduction rate on a display unit. In the case where a dedicated pan for grilling to perform Dutch oven cooking is stored in the storage place,
In the control unit, the temporary reference value for the dedicated pan and the allowable value for the dedicated pan are stored,
Provided either a dedicated pan detection means for detecting that the dedicated pan is accommodated in the accommodation place, or a dedicated pan selection means for manually selecting and using the dedicated pan,
When the dedicated pan detecting means detects that the dedicated pan is accommodated in the accommodating place, or when the dedicated pan selecting means selects and uses the dedicated pan, the dedicated pan is used. The cooking device according to claim 4 or 5, wherein a temporary reference value is used as the temporary reference value, and the allowable value for the dedicated pan is used as the predetermined allowable value.

Images