JP2017086412A - grill - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grill capable of setting appropriately a total heating time from a heating start to a time point of completion of heating cooking regardless of temperature change within a grill chamber when starting heating of a heating part.SOLUTION: An operation control unit H is configured to execute: temporary heating time setting processing obtaining temporary heating time for heating a heating object on the basis of detection information of a temperature detection unit K after starting heating by a heating unit 2 and load determination conditions selected according to a cooking menu when an automatic cooking operation is instructed; and total heating time setting processing setting total heating time for heating the heating object on the basis of the temporary heating time and a temperature variable set according to a heating start time temperature and the cooking menu. The temperature variable is reduced as the heating start time temperature increases and is determined in a relation that an absolute value of a differential coefficient of change of the temperature variable with respect to change of heating start time temperature is reduced as the heating start time temperature increases.SELECTED DRAWING: Figure 2

Description

  The present invention detects a gas combustion type heating unit that heats an object to be heated mounted on a mounting unit inside the grill cabinet, an operation control unit that controls an operation state, and an internal temperature of the grill cabinet. A temperature detection unit, a cooking menu command unit that commands a cooking menu corresponding to an object to be heated among a plurality of cooking menus, an automatic cooking operation command unit that commands an automatic cooking operation, and a heating start command for the heating unit are commanded The present invention relates to a grill provided with a heating start command section.

  Such a grill heats and heats an object to be heated placed on the placement unit by a gas combustion type heating unit, and when an automatic cooking operation is commanded by an automatic cooking operation command unit, After the heating of the part is started, it is determined (estimated) when the cooking is finished.

  By the way, by calculating the time when cooking is finished, the remaining time until cooking is finished is displayed on the display unit, or heating of the heating unit is automatically stopped when cooking is finished. Can be done.

  As a conventional example of such a grill, when the automatic cooking operation command is issued by the automatic cooking operation command unit, the operation control unit starts heating by the heating unit with the set heating amount based on the heating start command of the heating unit. The time point when cooking ends based on the detection information of the subsequent temperature detection unit and the load determination condition selected according to the cooking menu commanded by the cooking menu command unit among the plurality of load determination conditions There is one that is configured to obtain (see, for example, Patent Document 1).

  Specifically, based on the heating start command, the load selected according to the detection information of the temperature detection unit after starting heating by the heating unit with the set heating amount and the cooking menu commanded by the cooking menu command unit Based on the determination conditions, a load determination process for determining the thermal load of the object to be heated, a thermal load determined in the load determination process, and a cooking menu commanded by the cooking menu command unit among a plurality of calculation conditions And a remaining heating time setting process for setting a remaining heating time from when the load determination process is performed until the heating of the object to be heated is completed based on the calculation condition selected according to Yes.

  That is, in Patent Document 1, as the time point when cooking is finished, the remaining heating time from when the load determination process is performed until the heating of the object to be heated is finished is calculated. Based on this, it is configured to display the remaining time until the cooking ends on the display unit or to automatically stop the heating of the heating unit as the cooking ends.

  When the technical content of Patent Document 1 is described, heating by the heating unit is started based on the detection information of the temperature detection unit and the load determination condition selected according to the cooking menu as the load determination process described above. In the initial stage after the start of heating by the heating unit that changes according to the temperature rising gradient that changes according to the difference in the mounting state of the object to be heated in the mounting part, and the difference in the heat capacity of the object to be heated A process for determining a heat capacity determination time parameter until the temperature rises to the set determination temperature, and calculating a ratio between the heat capacity determination time parameter obtained by dividing the heat capacity determination time parameter by the temperature increase gradient and the temperature increase gradient is executed. It is configured.

The plurality of calculation conditions are set such that the larger the ratio is, the longer the remaining heating time is, and the remaining heating time required for the same ratio is different depending on the cooking menu.
And as the above-mentioned remaining heating time setting process, the process which calculates | requires remaining heating time based on a ratio and the calculation conditions selected according to the cooking menu is performed.

  Moreover, in patent document 1, the temperature detection part when the above-mentioned heat capacity discrimination | determination time parameter starts the heating of a heating part from the time until it raises to setting discrimination | determination temperature after starting the heating by a heating part. It is comprised so that it may obtain | require in the form correct | amended with the detected temperature.

  That is, if the initial ignition temperature, which is the temperature detected by the temperature detection unit when heating of the heating unit is started, is higher than a reference temperature (for example, 25 ° C.), the time elapses so that the difference from the initial ignition temperature increases. A value obtained by correcting the time is set as a time parameter for determining the heat capacity, and conversely, the ignition initial temperature, which is the temperature detected by the temperature detecting unit when heating of the heating unit is started, is higher than the reference temperature (for example, 25 ° C.). If it is lower, a value obtained by correcting the elapsed time so as to be shorter as the difference from the ignition initial temperature is larger is set as a heat capacity determination time parameter.

Japanese Patent No. 4152289

In the conventional grill, the remaining heating time can be appropriately set while determining the heat load of the object to be heated according to the difference in the mounting state of the object to be heated and the difference in the heat capacity of the object to be heated. Is.
That is, it is possible to appropriately obtain the time point when the cooking is completed while discriminating the placement state of the object to be heated and the heat capacity of the object to be heated in the placement unit.

  In addition, when determining the time parameter for determining the heat capacity, the elapsed time from the start of heating by the heating unit to the rise to the set determination temperature is corrected by the temperature detected by the temperature detection unit when heating of the heating unit is started. The remaining heating time can be set appropriately while properly determining the heat capacity of the object to be heated even if the temperature in the grill is changed when heating of the heating unit is started. It is.

  However, conventionally, although the heat capacity of the object to be heated is determined in consideration of the temperature variation in the grill when the heating of the heating part is started, the mounting state of the object to be heated and the object to be heated in the mounting part are determined. The remaining heating time obtained while discriminating the heat capacity of the object is used as it is regardless of the change in the temperature in the grill box when heating of the heating unit is started. There is a possibility that the time point when the cooking is finished differs greatly from the time when the cooking is actually finished.

  That is, when the temperature in the grill box is high when heating of the heating unit is started, the object to be heated exists in the atmosphere in the high temperature grill box immediately after the start of heating. Compared with the case where the temperature in the grill box is low when heating is started, the cooking is completed earlier.

  Therefore, the remaining heating time obtained while discriminating the mounting state of the object to be heated and the heat capacity of the object to be heated in the mounting part is corrected according to the temperature change in the grill box when heating of the heating part is started. However, in the past, the obtained remaining heating time is set as the remaining heating time because it is used as it is regardless of changes in the temperature in the grill when starting heating of the heating unit. There is a possibility that the end point of the cooking to be performed is greatly different from the end point of the actual cooking.

  The present invention has been made in view of the above circumstances, and the purpose thereof is a point in time when cooking is finished from the start of heating, regardless of a change in the temperature in the grill when the heating of the heating unit is started. The point is to provide a grill that can appropriately set the total heating time until.

The grill of the present invention comprises a gas combustion type heating unit that heats an object to be heated placed on a placement unit inside the grill cabinet, an operation control unit that controls the operation state, and an internal temperature of the grill cabinet. A temperature detecting unit to detect, a cooking menu command unit for commanding a cooking menu corresponding to an object to be heated among a plurality of cooking menus, an automatic cooking operation command unit for commanding automatic cooking operation, and a heating start command for the heating unit And a heating start command unit that commands
When the operation control unit is instructed to perform automatic cooking operation by the automatic cooking operation command unit,
Based on the heating start command of the heating start command unit, the cooking menu command unit among the detection information of the temperature detection unit after starting heating by the heating unit with a set heating amount and a plurality of load determination conditions A temporary heating time setting process for obtaining a temporary heating time for heating the object to be heated, based on the load determination condition selected according to the cooking menu commanded by
It is set according to the provisional heating time, the heating start time temperature which is detection information of the temperature detection unit when heating by the heating unit is started, and the cooking menu commanded by the cooking menu command unit. Based on the temperature variable, it is configured to execute a total heating time setting process for obtaining a total heating time for heating the object to be heated,
As the temperature variable is higher at the heating start time temperature, the temporary heating time is greatly decreased, and the decrease amount of the temporary heating time with respect to the unit amount increase of the heating start time temperature is increased by the heating start time temperature. It is in a point that is set to a form that decreases as you do.

  That is, the provisional heating time setting process performs provisional heating for heating the heated object based on the detection information of the temperature detection unit after the heating by the heating unit is started and the load determination condition selected according to the cooking menu. Time, that is, a temporary heating time from the start of heating of the heating unit to the end of cooking is obtained.

  Next, by the total heating time setting process, the provisional heating time, the heating start time temperature which is detection information of the temperature detection unit when heating by the heating unit is started, and the cooking menu commanded by the cooking menu command unit The total heating time for heating the object to be heated, that is, the total heating time from the start of heating of the heating unit to the end of cooking is obtained based on the temperature variable set according to the above.

  The total heating time is obtained as a value obtained by correcting the temporary heating time with a temperature variable. However, the heating time increases as the temperature variable increases at the heating start time when heating by the heating unit is started. Since it is defined in the form to decrease, the higher the heating start time temperature at the time when heating by the heating unit is started, the shorter the total heating time even in the same cooking menu, the time when heating by the heating unit is started When the temperature at the start of heating is high, the total heating time can be avoided from being set to a time that is too long so as to burn the object to be heated.

  In addition, since the temperature variable is set to a form in which the decrease amount of the temporary heating time with respect to the unit amount increase of the heating start time point temperature is decreased as the heating start time point temperature increases, the time when heating by the heating unit is started The higher the heating start time temperature, the shorter the total heating time, but the shorter the total heating time, the less the heating start time temperature increases. However, it is possible to avoid setting the time too short so that the object to be heated is insufficiently heated.

  In short, according to the further feature of the grill of the present invention, the total heating time from the start of heating to the end of heating cooking is set regardless of the change in the temperature in the grill when the heating of the heating unit is started. A grill that can be set appropriately can be provided.

  In a further characteristic configuration of the grill of the present invention, the temperature variable is set by using a plurality of functions determined for each of a plurality of temperature sections obtained by dividing the change range of the heating start time temperature into a plurality. In the point.

  That is, since the temperature variable is set using a function, the storage amount of the operation control unit can be reduced. That is, when the temperature variable is stored in the operation control unit, the temperature variable defined for each of a plurality of heating start time temperatures is stored in the operation control unit for each cooking menu commanded by the cooking menu command unit. In this case, there is a disadvantage that the storage amount of the operation control unit increases.

  Moreover, since the temperature variable is set using a plurality of functions determined for each of a plurality of temperature sections obtained by dividing the temperature change range of the heating start time temperature into a plurality of ranges, the temperature variable is set for each of the plurality of temperature sections. For example, the calculation function of the operation control unit can be reduced by simplifying the function for setting the temperature variable, for example, by making the function to be a linear function.

  In short, according to the further characteristic configuration of the grill of the present invention, the storage amount of the operation control unit can be reduced, and the calculation load of the operation control unit can be reduced.

  In a further characteristic configuration of the grill of the present invention, the temperature variable is set to a form in which the amount of decrease in the temporary heating time is made constant when the heating start time temperature is equal to or higher than a set high temperature. It is in.

  That is, although the cooking temperature tends to end earlier as the heating start time temperature is higher, when the heating start time temperature is equal to or higher than a certain temperature on the high temperature side, the time point at which the heating cooking ends does not change significantly. Therefore, if the set high temperature is set to a temperature on the high temperature side that does not change significantly when the cooking ends, and the heating start time temperature is equal to or higher than the set high temperature, the temporary heating time Make the amount of decrease constant.

  As described above, when the heating start time temperature is equal to or higher than the set high temperature, the total heating time is set when the heating start time temperature is equal to or higher than the set high temperature by making the decrease amount of the temporary heating time constant. It is possible to avoid setting the time too short to cause insufficient heating.

  In short, according to the further characteristic configuration of the grill of the present invention, the total heating time can be set to an appropriate time even when the heating start time temperature is equal to or higher than the set high temperature.

Further characteristic configuration of the grill of the present invention, the operation control unit, as the temporary heating time setting process,
According to the detection information of the temperature detection unit after starting heating by the heating unit with the set heating amount based on the heating start command of the heating start command unit and the cooking menu commanded by the cooking menu command unit Load determination processing for determining the thermal load of the object to be heated, based on the load determination conditions selected by
Heating the object to be heated after the load determination process is performed based on the thermal load and a calculation condition selected according to the cooking menu commanded by the cooking menu command unit among a plurality of calculation conditions The remaining heating time setting process for setting the remaining heating time until the end of the process, and
It is configured to perform an addition process for adding the remaining heating time and an initial time from the start of heating by the heating unit to the end of the load determination process to obtain the temporary heating time. is there.

  That is, for the load determination selected according to the cooking menu commanded by the cooking menu command means among the detection information detected by the temperature detection unit and the plurality of load determination conditions after heating by the heating unit is started Based on the conditions, the thermal load of the object to be heated is determined.

In addition, based on the determined heat load and the calculation condition selected according to the commanded cooking menu among the plurality of calculation conditions, until the heating of the object to be heated is completed after the load determination process is performed. The remaining heating time is set.
And the temporary heating time is calculated | required by adding the initial time from the start of the heating by a heating part to completion | finish of a load discrimination | determination process to remaining heating time.

  According to this feature configuration, the remaining heating time is set based on the heat load of the object to be heated determined in the load determination process and the calculation condition selected according to the cooking menu. Depending on the conditions, it is possible to set an appropriate remaining heating time according to the cooking menu, such as setting the remaining heating time short for cooking menus where cooking is easy to proceed, so the remaining heating time is based only on the heat load of the object to be heated. Compared with the case where it sets, suitable temporary heating time according to a cooking menu can be calculated | required.

  In short, according to the further characteristic configuration of the grill of the present invention, an appropriate temporary heating time according to the cooking menu can be obtained.

According to a further characteristic configuration of the grill of the present invention, the operation control unit performs the load determination process as follows:
Based on the detection information of the temperature detection unit and the load determination condition selected according to the cooking menu, in the initial stage after the heating by the heating unit is started, Temperature rise gradient that changes according to the difference in mounting state, and heat capacity determination from when heating by the heating unit that changes according to the difference in heat capacity of the object to be heated to when the temperature rises to the set determination temperature A process for obtaining a time parameter and obtaining a ratio between the heat capacity determination time parameter obtained by dividing the heat capacity determination time parameter by the temperature increase gradient and the temperature increase gradient is executed.
The plurality of calculation conditions are determined such that the larger the ratio, the longer the remaining heating time, and the remaining heating time to be obtained for the same ratio varies depending on the cooking menu. And
The operation control unit is
The remaining heating time setting process is configured to execute a process for obtaining a remaining heating time based on the ratio and the calculation condition selected according to the cooking menu.

  That is, in the initial stage after the heating by the heating unit is started based on the detection information of the temperature detection unit and the load determination condition selected according to the cooking menu by the load determination process, the object to be heated in the mounting unit The temperature rise gradient that changes according to the difference in the mounting state of the battery, and the heat capacity determination time from the start of heating by the heating unit that changes according to the difference in the heat capacity of the object to be heated until the temperature rises to the set determination temperature The parameter is obtained, and further, the ratio between the heat capacity determination time parameter and the temperature rise gradient is obtained as the heat load of the object to be heated.

  If explanation is given that the temperature rise gradient changes according to the difference in the placement state of the object to be heated in the placement part, the internal temperature of the grill box gradually increases when heating of the heating part is started. In the case where the object to be heated is placed in a place close to the exhaust part in the placement part, and the case where the object to be heated is placed in a place far from the exhaust part, the flow of air inside the grill cabinet Due to the difference in the state, etc., the flow state of the heated air inside the grill warehouse differs depending on the difference in the state of the object to be heated placed on the placement part, so the temperature rises accordingly. The slope will be different.

  That is, based on the detection information of the temperature detection unit, not only information corresponding to the heat capacity of the object to be heated but also information corresponding to the placement state of the object to be heated in the placement part can be obtained. A difference in heat capacity and a difference in placement state of the object to be heated with respect to the placement portion are required.

  The heat capacity determination time parameter corresponds to the elapsed time from the start of heating by the heating unit to the rise of the setting determination temperature, but the detection of the temperature detection unit when heating of the heating unit is started When the temperature is higher than the reference temperature (for example, 25 ° C.), the value obtained by correcting the elapsed time so as to become longer as the difference becomes larger is used as a heat capacity determination time parameter. It is desirable that a value obtained by correcting the elapsed time at the temperature detected by the temperature detection unit is a heat capacity determination time parameter.

  And by the remaining heating time setting process, the ratio of the time parameter for determining the heat capacity obtained as the heat load of the object to be heated and the temperature rise gradient, the longer the remaining heating time, the larger the ratio, The remaining heating time is set based on the number calculation condition determined so that the remaining heating time obtained with respect to the ratio varies depending on the cooking menu.

Incidentally, the calculation for setting the remaining heating time can be simplified by setting the remaining heating time based on the ratio between the heat capacity determination time parameter and the temperature rise gradient.
That is, for example, it is conceivable that the heating time is obtained separately from the heat capacity determination time parameter and the temperature increase gradient, and the average value thereof is set as the remaining heating time, but the heat capacity determination time parameter and the temperature increase gradient are considered. By setting the remaining heating time based on the ratio, the remaining heating time can be obtained while simplifying the calculation.

  In short, according to the further characteristic configuration of the grill of the present invention, the remaining heating time can be reduced while simplifying the calculation while corresponding to the heat capacity of the object to be heated and the placement state of the object to be heated with respect to the placing portion. Can be sought.

  According to a further characteristic configuration of the grill of the present invention, as the temperature detection unit, a temperature sensor for determining a temperature gradient for detecting the temperature rise gradient, and a heat capacity determination for detecting the heat capacity determination time parameter. A temperature sensor is provided separately from each other.

  That is, as the temperature detector, a temperature sensor for detecting a temperature gradient for detecting a temperature rise gradient and a temperature sensor for determining a heat capacity for detecting a time parameter for determining a heat capacity are provided separately. By arranging the temperature sensor for detecting the temperature gradient at a location suitable for detecting the temperature increase gradient, it becomes possible to detect the temperature increase gradient with high accuracy. By disposing at a position suitable for detecting the time parameter for determination, it is possible to detect the elapsed time for heat capacity determination with high accuracy.

  In short, according to the further characteristic configuration of the grill of the present invention, it is possible to accurately detect each of the temperature rise gradient and the time parameter for determining the heat capacity.

  A further characteristic configuration of the grill according to the present invention is that the cooking menu command unit is configured to command the difference in the form of the heated object and the heating / discharging of the heated object as the cooking menu.

That is, the cooking menu command unit can command the difference in the form of the heated object and the heating / unheating of the heated object as the cooking menu.
As the form of the object to be heated, for example, in the case of fish, the form of the object to be heated can be appropriately instructed, such as instructing a difference between grilled and fillet.
As the baking, for example, it is possible to instruct the heating of the object to be heated according to the preference of the user, such as instructing the baking of the fish to be stronger or weaker.

  In short, according to the characteristic configuration of the grill of the present invention, cooking with good heat can be performed while instructing baking adjustment according to the form of the object to be heated and the user's preference.

Gas stove perspective view Block diagram showing control configuration of grill burner Front view of setting input panel for grill Vertical side view of grill Figure showing menu table Table showing coefficient and temperature conditions for each cooking menu The figure which shows the relationship between heating start time temperature and total heating time when temporary heating time is constant Graph showing the relationship between the low temperature slope variable and the temperature at the start of heating Graph showing the relationship between low-temperature intercept variable and heating start temperature A graph showing the relationship between the slope variable at medium temperature and the temperature at the start of heating Graph showing the relationship between the intercept variable at intermediate temperature and the temperature at the start of heating Graph showing the relationship between the high temperature slope variable and the temperature at the start of heating Graph showing the relationship between the intercept variable at high temperature and the temperature at the start of heating Flow chart showing control operation at the beginning of operation Flow chart showing control operation of automatic cooking operation

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

(Overall configuration of gas stove)
As shown in FIG. 1, the built-in type gas stove equipped with the grill 3 provided with the three burner 1 and the grill burner 2 (refer FIG. 4) as a gas combustion type heating part is comprised.
A grill exhaust port 4 for exhausting combustion exhaust gas from the grill 3 is formed at a location on the rear side of the top plate 5 that covers the upper surface of the gas stove.
The three burners 1 are a standard burner 1a, a small burner 1b, and a high-fired burner 1c. On top of the top plate 5, there are five virtues 6 for receiving and supporting pans and the like. It is placed and supported corresponding to.

On the front side of the gas stove, there is provided a manual operation section S that commands ignition and extinguishing of the stove burner 1 and the grill burner 2 and adjustment of the thermal power.
The gas stove includes an operation control unit H (see FIG. 2) configured using a microcomputer. The operation control unit H operates the gas stove based on the command information commanded by the manual operation unit S. Control, that is, combustion control of the stove burner 1 and the grill burner 2 is performed.
A push-operated power switch 9 is provided on the front side of the gas stove, and the operation control unit H is configured to perform combustion control of the stove burner 1 and the grill burner 2 when the power switch 9 is turned on. Has been.

As shown in FIG. 2, each of the three burners 1 is provided with an igniter 7 and an ignition detection sensor 8 that detects an ignition state. By the way, the standard burner 1a located on the left side is provided with a temperature sensor 10 (see FIG. 1) for detecting the temperature of the heated object by contacting the bottom surface of the heated object placed and supported by Gotoku 6. ing.
As shown in FIG. 4, the grill burner 2 is configured as a double-sided burner type including an upper surface burner 2a and a pair of left and right lower surface burners 2b and 2c. As shown in FIG. 2, each of the upper burner 2 a and the pair of left and right lower burners 2 b and 2 c is provided with an igniter 7 and an ignition detection sensor 8 in the same manner as the stove burner 1.

(Gaseous fuel supply configuration)
As shown in FIG. 2, an original electromagnetic valve 12 is provided in an original gas supply path 11 connected to a gas supply source such as a city gas supply pipe. From the original gas supply path 11, a standard burner branch path 13 a, a small Four systems of gas flow paths are branched: a burner branch path 13b, a high thermal power burner branch path 13c, and a grill burner branch path 13d.
Each of the standard burner branch path 13a, the small burner branch path 13b, the high thermal power burner branch path 13c, and the grill burner branch path 13d is adjusted by adjusting the flow rate of the fuel gas by driving the stepping motor. A flow control valve 18 for adjustment is provided.

The branch path 13d for the grill burner to the grill burner 2 is further branched into a branch path for the upper surface burner and a branch path for the lower surface burner. The branch path includes a flow path 15 with an orifice of and an open / close solenoid valve 16. And a bypass path 17 provided with.
Incidentally, in the present embodiment, the heating power (heating amount) of the grill burner 2 is changed by opening and closing the open / close solenoid valve 16, and the flow rate control valve 18 provided in the grill burner branch path 13d can be omitted.

In other words, the upper surface burner 2a and the pair of left and right lower surface burners 2b and 2c are adjusted to a strong heating power by opening the open / close solenoid valve 16 of the upper surface burner branch path and the lower surface burner branch path. The upper and lower burners 2a and 2c and 2c are configured to be adjusted to a low heating power by closing the open / close solenoid valve 16 of the branch path and the lower burner branch path.
Although not shown in the figure, the grill burner branch 13d is provided with a gas governor between the original solenoid valve 12 and the flow rate control valve 18 so that a constant flow rate of gas is supplied to the grill burner 2. Yes.

(Operation configuration of gas stove)
As shown in FIG. 1, on the gas stove front side surface 19, as a manual operation unit S, for instructing ignition, extinguishing, and thermal power adjustment to the standard burner 1 a, the small burner 1 b, and the high thermal power burner 1 c, respectively. Three heating state adjusting units 20, a cooker burner input panel 21 for setting cooking by the burner 1, and a grill setting input panel 22 for commanding the grill burner 2 to ignite, extinguish, and adjust thermal power; Is provided.

  As shown in FIG. 3, the setting input panel 22 for the grill is configured by a push-type switch, and an on state for instructing ignition to the grill burner 2 and an off state for instructing extinguishment each time the push operation is performed. The point-extinguishing switch 23 to be switched to, the combustion lamp 24 that is turned on when the grill burner 2 is burned and turned off when the grill burner 2 is extinguished, the timer setting switch 25 for increasing / decreasing the heating timer time, and the set timer time are displayed A timer display unit 26 is provided.

  In addition, the setting input panel 22 for the grill shows a heating power changeover switch 27 for changing the heating state by the upper surface burner 2a and the lower surface burners 2b, 2c, and a heating state changed by the heating power changeover switch 27. In addition, for each of the upper surface burner 2a and the lower surface burners 2b and 2c, there is provided a thermal power display unit 28 comprising a weak display unit 28a indicating that the thermal power state is low thermal power and a strong display unit 28b indicating high thermal power. It has been.

  Furthermore, the setting input panel 22 for the grill has a menu changeover switch 29 for switching the combustion state according to a menu (cooking menu) for the heated object to be cooked, a baking adjustment switch 30 for adjusting baking, A tear-off switch 31 for canceling an automatic heating operation described later is provided.

Menus (cooking menus) that can be switched by the menu changeover switch 29 include “figure appearance”, “fillet”, and “dried fish” corresponding to the difference in the form of the object to be heated. A menu display unit 29a is provided.
There are three levels of “weak”, “standard”, and “strong” as the menu (cooking menu), and a baking display portion 30a is provided that indicates the selected item with an LED lamp.
And as shown in FIG. 5, the menu table which a user refers separately when cooking is prepared, and a user sets a menu (cooking menu), referring this menu table.

Incidentally, in the present embodiment, the combustion lamp 24, the timer display unit 26, the thermal power display unit 28, the menu display unit 29a, and the baking display unit 30a serve as an operation state display unit D that displays the operation state of the grill 3. Configured to work.
Further, the point fire extinguishing switch 23 is configured to function as a heating start command unit that commands a heating start command for starting heating by the grill burner 2.

Further, the menu changeover switch 29 and the baking adjustment switch 30 are configured to function as a cooking menu command unit MS that commands a cooking menu corresponding to an object to be heated among a plurality of cooking menus, and this cooking menu command unit MS Thus, the cooking menu is configured to command the difference in the form of the object to be heated and the heating / discharging of the object to be heated.
Further, the menu changeover switch 29, the baking adjustment switch 30 and the fire extinguishing switch 23 are configured to function as an automatic cooking operation command unit E that commands the start of an automatic cooking operation described later.

(Grill configuration)
As shown in FIG. 4, the grill 3 includes a grill box 32 formed in a box shape having a front surface portion opened and a rear surface portion closed, and an object to be heated is placed inside the grill box 32. A grill 33 as a mounting portion is provided. The heated object placed on the grill 33 is heated by the grill burner 2.
An exhaust passage 34 for exhausting cooking exhaust gas such as combustion exhaust gas of the grill burner 2 and water vapor generated from the cooking object is provided on the rear side of the grill chamber 32 so as to extend upward. Is guided to the grill exhaust port 4 described above.

The grill burner 2, that is, the upper surface burner 2a and the pair of left and right lower surface burners 2b and 2c, is supplied with a mixed gas in which primary air is mixed to perform primary combustion, and the air inside the grill 32 is used as secondary air. It is configured as a so-called Bunsen combustion type burner for subsequent combustion.
Incidentally, the secondary air of the grill burner 2 is taken in through the vent holes (not shown) formed in the front side and bottom side portions of the grill cabinet 32, and the flow of the secondary air causes the next It is comprised so that the soup saucer 35 described may be cooled.

Below the grilling net 33, a juice receiving tray 35 for receiving oil from an object to be heated such as fish is provided. The juice receiving tray 35 is provided by a guide (not shown) provided on the side wall of the grill cabinet 32. In a state where the grill net 33 is placed, it is guided so as to be movable in and out with respect to the grill box 32 and can be taken out from the grill box 32.
Further, a door 36 with a handle is provided at the front end of the soup pan 35 to close the front portion of the grill pan 32 when the soup pan 35 is stored in the grill pan 32. Therefore, the user opens and closes the door 36 with a handle so that the soup saucer 35 and the grill 33 are moved back and forth with respect to the grill box 32.

(Outline of grill control)
As shown in FIG. 4, the grill 3 is provided with a temperature detection unit K that detects the internal temperature of the grill warehouse 32.
And when the operation control part H performs automatic cooking operation, based on the detection information of the temperature detection part K after the heating by the grill burner 2 is started, and the cooking menu commanded by the cooking menu command part MS The total heating time TM for heating the object to be heated is set, and the remaining time obtained by subtracting the elapsed heating time from the start of the automatic cooking operation from the total heating time TM is displayed on the timer display unit 26 described above. In addition, the automatic cooking operation is automatically stopped when the remaining time becomes zero.

In the present embodiment, as the temperature detection unit K, an exhaust gas temperature sensor 37 as a heat capacity determination temperature sensor for detecting a heat capacity determination elapsed time Y1 and a heat capacity determination time parameter To described later, and a temperature increase described later. An internal temperature sensor 38 is provided as a temperature sensor for temperature gradient discrimination for detecting the gradient α.
More specifically, as shown in FIG. 4, the combustion exhaust gas of the upper surface burner 2a and the pair of left and right lower surface burners 2b and 2c is positioned slightly higher than the height of the grill 33 inside the grill warehouse 32. An exhaust gas temperature sensor 37 is provided at a location where the gas flows and is discharged through the exhaust passage 34.

The position where the exhaust gas temperature sensor 37 is provided is a location where the combustion exhaust gas of each of the upper surface burner 2a and the pair of left and right lower surface burners 2b and 2c flows, and an exhaust gas side detection temperature TH1 which is a detection temperature of the exhaust gas temperature sensor 37. Change of the elapsed time Y1 for determining the heat capacity from the start of heating until the temperature rises to the first monitoring temperature X1 (see FIG. 6) as the setting determination temperature varies depending on the thermal load of the object to be heated. It is a place.
A dust-proof plate 39 for preventing dust from falling is provided immediately above the exhaust gas temperature sensor 37, and exhaust gas is provided at a location above the dust-proof plate 39 and on the inner side of the grill cabinet. An upper guide plate 40 for guiding a part of the flow toward the exhaust gas temperature sensor 37 is provided.

Further, at a position below the exhaust gas temperature sensor 37, that is, a position slightly lower than the grill 33 inside the grill 32, mainly where the combustion exhaust gas of the left and right lower burners 2b and 2c flows. An internal temperature sensor 38 is provided.
A place where the inside temperature sensor 38 is provided is a place where the temperature rise gradient α obtained by the inside detection temperature TH2 which is the temperature detected by the inside temperature sensor 38 is placed on the heating object placed on the grill 33. It is a place that changes depending on the state.
Note that a guide plate 41 for guiding the flow of air flowing below the object to be heated to the internal temperature sensor 38 is provided at a location where the grill 33 of the internal temperature sensor 38 is present. .

  Further, when the operation control unit H performs the automatic cooking operation, the detected temperatures detected by the temperature detecting means K after the heating by the grill burner 2 is started are set in advance according to a plurality of cooking menus. Of the plurality of second monitoring temperatures X2 (see FIG. 6), when the second monitoring temperature X2 selected according to the cooking menu commanded by the cooking menu command unit MS is reached, the heating amount of the grill burner 2 is adjusted to decrease. It is comprised so that the heating amount suppression process to perform may be performed.

  In the present embodiment, the exhaust gas side detection temperature TH1 detected by the exhaust gas temperature sensor 37 is used as the detection temperature of the temperature detection means K, and the heating amount suppression process is executed. The second monitoring temperature X2 is The exhaust gas side detection temperature TH1 is determined.

(Overview of total heating time setting)
The operation control unit H is selected according to the detection information of the temperature detection unit K after the heating by the grill burner 2 is started and the cooking menu commanded by the cooking menu command unit NS among the plurality of load determination conditions. Temporary heating time setting process for obtaining the temporary heating time TK for heating the object to be heated based on the load determination conditions, and the temperature detection unit when the heating by the temporary heating time TK and the grill burner 2 is started The total heating time TM for heating the object to be heated based on the heating start time temperature TH which is the detection information of K and the temperature variable Kα set according to the cooking menu commanded by the cooking menu command unit MS Is configured to execute a total heating time setting process.

As shown in FIG. 7, the temperature variable Kα greatly decreases the temporary heating time TK as the heating start time temperature TH is higher, and the decrease amount of the temporary heating time TK with respect to the unit amount increase of the heating start time temperature TH The heating start point temperature TH is set to decrease as the temperature TH increases.
Incidentally, FIG. 7 is a diagram showing that the total heating time TM changes due to a change in the heating start time temperature TH when the temporary heating time TK is constant.

Moreover, although illustration is abbreviate | omitted, the temperature variable K (alpha) will be defined in a different form for every cooking menu instruct | indicated in the cooking menu instruction | command part MS, and FIG. 7 shows temperature set according to a cooking menu. A typical example is shown as the variable Kα.
Incidentally, details of the total heating time setting process and the temperature variable Kα will be described later.

(Details of setting the temporary heating time)
The operation control unit H is configured to sequentially perform a load determination process, a remaining heating time setting process, and an addition process as the temporary heating time setting process.
The load determination process includes the detection information of the temperature detection unit K after starting the heating by the grill burner 2 with a preset heating amount set in advance based on the heating start command, and the cooking menu commanded by the cooking menu command unit MS It is the process which determines the thermal load of to-be-heated material based on the conditions for load discrimination | determination selected according to.

  Specifically, as the load determination process, based on the detection information of the temperature detection unit K and the load determination condition selected according to the cooking menu, in the initial stage after the heating by the grill burner 2 is started, the grill 33 The temperature rise gradient α that changes according to the difference in the mounting state of the object to be heated and the first setting determination temperature after the heating by the grill burner 2 that changes according to the difference in the heat capacity of the object to be heated is started. The heat capacity determination time parameter To until the temperature rises to the monitored temperature X1 (see FIG. 6) is obtained, and the heat capacity determination time parameter To obtained by dividing the heat capacity determination time parameter To by the increase gradient α and the temperature increase gradient α The processing for obtaining the ratio V (To / α) is executed.

  That is, first, after the heating by the grill burner 2 is started, the time until the exhaust gas side detection temperature TH1 detected by the exhaust gas temperature sensor 37 rises to the first monitoring temperature X1 determined according to the cooking menu is: It is obtained as the elapsed time for heat capacity determination Y1.

Further, in the present embodiment, a temperature difference Δtb between a preset reference temperature (for example, 25 ° C.) and the ignition initial temperature tbo detected by the exhaust gas temperature sensor 37 at the time when heating of the grill burner 2 is started is calculated. The correction time dt is obtained by the following equation (1) based on the temperature difference Δtb.
dt = D · Δtb ² + E · Δtb ------- (1)
However, D and E are constants obtained by experiments, and are set to D = 0.03 and E = 0.69, for example.

Then, the heat capacity determination time parameter To obtained by adding the heat capacity determination elapsed time Y1 and the correction time dt is obtained by the following equation (2).
To = Y1 + dt ------- (2)
Incidentally, in the present embodiment, the first monitoring temperature X1 and the above-described arithmetic expression correspond to the load determination condition.

  In the present embodiment, when the exhaust gas side detection temperature TH1 of the exhaust gas temperature sensor 37 does not reach the first monitoring temperature X1 even after the maximum measurement time Tomax (see FIG. 6) has elapsed since the heating of the grill burner 2 has started. The maximum measurement time Tomax is set as the heat capacity determination elapsed time Y1. That is, even if the temperature cannot be measured properly due to some trouble, the elapsed time Y1 for determining the heat capacity, in other words, the total heating time TM is prevented from becoming unnecessarily long.

Next, the ratio V (To / α) between the heat capacity determination time parameter To and the temperature rise gradient α is obtained.
In the present embodiment, the temperature increase gradient α is obtained based on the inside detection temperature TH2 detected by the inside temperature sensor 38, and is the temperature 100 seconds after the heating of the grill burner 2 is started. Is obtained as the first detection value TB1, the temperature 160 seconds after the heating of the grill burner 2 is started is obtained as the second detection value TB2, and the temperature rise gradient α is obtained by the following equation (3). Yes.
α = (TB2-TB1) / (160-100) -------- (3)

The remaining heating time setting process includes the heat load (that is, the ratio V) obtained in the load determination process, and a calculation condition selected according to the cooking menu commanded by the cooking menu command unit MS among the plurality of calculation conditions. Is a process for setting the remaining heating time TJ from when the load determination process is performed until the heating of the object to be heated is completed.
In the plurality of calculation conditions, as the ratio V (To / α) is larger, the remaining heating time TJ is lengthened, and the remaining heating time TJ calculated for the same ratio V (To / α) is used in the cooking menu. It is stipulated to be different depending on the situation.

That is, the remaining heating time TJ is obtained by the following equation (4).
TJ = A ・ (To / α) + B -------- (4)
However, A and B are variables set in advance according to the cooking menu (see FIG. 6).
Incidentally, in this embodiment, the variables A and B and the above-described arithmetic expression correspond to the calculation conditions.

Incidentally, the operation control unit H is configured to set the remaining heating time TJ on the condition that it does not exceed the set maximum time TJmax (see FIG. 6) set for each of the plurality of cooking menus. .
That is, when the obtained remaining heating time TJ exceeds the set longest time TJmax, the remaining heating time TJ is set to the set longest time TJmax.

The addition process is a process for obtaining the temporary heating time TK by adding the remaining heating time TJ and the initial time from the start of heating by the grill burner 2 to the end of the load determination process.
In the present embodiment, as shown in the following formula (5), in the addition process, the heat capacity determination elapsed time Y1 is added as an initial time to the remaining heating time TJ to obtain the temporary heating time TK. ing.
TK = TJ + Y1 = A. (To / α) + B + Y1 -------- (5)

(Details of total heating time setting)
As described above, the total heating time setting process includes the provisional heating time TK, the heating start time temperature TH that is detection information of the internal temperature sensor 38 at the time when the heating by the grill burner 2 is started, and the cooking menu command unit MS. This is a process for setting the total heating time TM for heating the object to be heated based on the temperature variable Kα set according to the commanded cooking menu.

  As described above, as the temperature variable Kα increases as the heating start time temperature TH increases, the temporary heating time TK is greatly reduced, and the decrease amount of the temporary heating time TK with respect to the unit amount increase of the heating start time temperature TH is increased by heating. The starting point temperature TH is set to decrease as the temperature increases.

  That is, in the present embodiment, as shown in FIG. 7, the temperature variable Kα decreases as the heating start time temperature TH increases, and the change variable of the temperature variable Kα with respect to the change of the heating start time temperature TH is a minute variable. Is set to a form that decreases as the heating start time temperature TH increases.

Further, in the present embodiment, as shown in FIG. 7, the temperature variable Kα uses a plurality of functions determined for each of a plurality of temperature sections obtained by dividing the change range of the heating start point temperature TH into a plurality. Is set.
That is, in this embodiment, the change range of the heating start point temperature TH is divided into three sections, a section below 70 ° C., a section above 70 ° C. and below 110 ° C., and a section above 110 ° C. For each of the three sections, a function for setting the temperature variable Kα is defined as a linear function.

In the present embodiment, the temperature variable Kα is defined as a slope variable β and an intercept variable γ in a linear function set in each of the three sections, and the total heating time TM is obtained by the following equation (6). Has been.
TM = β ・ TK + γ -------- (6)
However, the absolute value of β is smaller than 1, and γ is larger than zero.

  That is, in the present embodiment, as the inclination variable β according to the heating start time temperature TH, the low temperature inclination variable βC (see FIG. 8) corresponding to the section where the heating start time temperature TH is less than 70 ° C., the heating start time Mid-temperature slope variable βSH (see FIG. 10) corresponding to a section where temperature TH is 70 ° C. or higher and less than 110 ° C., and high-temperature slope variable βH (see FIG. 12) corresponding to a section where heating start time temperature TH is 110 ° C. or higher. ).

  Incidentally, FIG. 8, FIG. 10 and FIG. 12 show the case where the inclination variable β is obtained from the heat start point temperature TH based on predetermined reference information for one of a plurality of cooking menus. For each of the plurality of cooking menus, reference information for determining the slope variable β from the heat start point temperature TH is determined. The reference information will be described later.

  Similarly, according to the heating start time temperature TH, as an intercept variable γ, a low temperature intercept variable γC (see FIG. 9) corresponding to a section where the heating start time temperature TH is less than 70 ° C., and the heating start time temperature TH is 70 ° C. The medium temperature intercept variable γSH (see FIG. 11) corresponding to the section above 110 ° C. and the high temperature intercept variable γH (see FIG. 13) corresponding to the section where the heating start time temperature TH is 110 ° C. or more are obtained. It is configured as follows.

  Incidentally, FIG. 9, FIG. 11 and FIG. 13 show the case where the intercept variable γ is obtained from the heat start point temperature TH based on predetermined reference information for one of a plurality of cooking menus. For each of the plurality of cooking menus, reference information for determining the intercept variable γ from the heat start point temperature TH is determined in advance. The reference information will be described later.

  Then, the slope variable β (low temperature slope variable βC, medium temperature slope variable βSH, high temperature slope variable βH) and intercept variable γ (low temperature intercept variable γC, medium temperature intercept variable γSH, high temperature intercept variable γH) were obtained. Later, the total heating time TM is obtained by the above-described equation (6) (see FIG. 7).

(Calculation of low temperature inclination variable βC)
When the heating start time point temperature TH of the internal temperature sensor 38 is less than 70 ° C., as shown in FIG. The time slope variable βC is obtained.
βC = (βCB−βCA) · (TH−THB) ÷ (THB−THA) + βCB
However, THA = 25 ° C. and THB = 70 ° C.
βCA is reference information predetermined by the applicant based on experimental data, and the value of the low-temperature slope variable βC corresponding to the heating start time temperature TH of the internal temperature sensor 38 at the start of heating being THA. It is.
βCB is reference information predetermined by the applicant based on experimental data, and the value of the low-temperature slope variable βC corresponding to the heating start time temperature TH of the internal temperature sensor 38 at the start of heating being THB. It is.

(Calculation of medium temperature slope variable βSH)
When the heating start time temperature TH of the internal temperature sensor 38 is 70 ° C. or higher and lower than 110 ° C., the heating start time temperature TH of the internal temperature sensor 38 is used as the slope variable β as shown in FIG. Thus, the temperature gradient variable βSH is obtained by the following equation.
βSH = (βSHC−βSHB) · (TH−THC) ÷ (THC−THB) + βSHC
However, THB = 70 ° C. and THC = 110 ° C.
βSHB is reference information predetermined by the present applicant based on experimental data, and the value of the intermediate temperature inclination variable βSH corresponding to the heating start time temperature TH of the internal temperature sensor 38 at the start of heating being THB. It is.
βSHC is reference information predetermined by the applicant based on experimental data, and the value of the medium temperature inclination variable βSH corresponding to the heating start time temperature TH of the internal temperature sensor 38 at the start of heating being THC. It is.

(Calculation of slope variable βH at high temperature)
When the heating start time point temperature TH of the internal temperature sensor 38 is 110 ° C. or more, as shown in FIG. The time gradient variable βH is obtained.
βH = (βHD−βHC) · (TH−THD) ÷ (THD−THC) + βHD
However, THC = 110 ° C. and THD = 140 ° C.
βHC is reference information predetermined by the applicant based on experimental data, and the value of the high temperature slope variable βH corresponding to the heating start time temperature TH of the internal temperature sensor 38 at the start of heating being THC. It is.
βHD is reference information predetermined by the applicant based on experimental data, and the value of the high temperature slope variable βH corresponding to the heating start time temperature TH of the internal temperature sensor 38 at the start of heating being THD. It is.

(Calculation of low-temperature intercept variable γC)
When the heating start time point temperature TH of the internal temperature sensor 38 is less than 70 ° C., as shown in FIG. 9, using the heating start time point temperature TH of the internal temperature sensor 38 as the intercept variable γ, Find the time intercept variable γC.
γC = (γCB−γCA) · (TH−THB) ÷ (THB−THA) + γCB
However, THA = 25 ° C. and THB = 70 ° C.
γCA is reference information predetermined by the applicant based on experimental data. The value of the low-temperature intercept variable γC corresponding to the heating start time temperature TH of the internal temperature sensor 38 at the start of heating is THA. It is.
γCB is reference information predetermined by the applicant based on experimental data, and the value of the low-temperature intercept variable γC corresponding to the heating start time temperature TH of the internal temperature sensor 38 at the start of heating being THB. It is.

(Calculation of medium temperature intercept variable γSH)
When the heating start time temperature TH of the internal temperature sensor 38 is 70 ° C. or higher and lower than 110 ° C., as shown in FIG. 11, the heating start time temperature TH of the internal temperature sensor 38 is used as the intercept variable γ. Thus, the intermediate temperature intercept variable γSH is obtained by the following equation.
γSH = (γSHC−γSHB) · (TH−THC) ÷ (THC−THB) + γSHC
However, THB = 70 ° C. and THC = 110 ° C.
γSHB is reference information predetermined by the applicant based on experimental data, and the value of the intermediate temperature intercept variable γSH corresponding to the heating start time temperature TH of the internal temperature sensor 38 at the start of heating being THB. It is.
γSHC is reference information predetermined by the applicant based on experimental data, and the value of the intermediate temperature intercept variable γSH corresponding to the heating start time temperature TH of the internal temperature sensor 38 at the start of heating being THC. It is.

(Calculation of intercept variable γH at high temperature)
When the heating start time point temperature TH of the internal temperature sensor 38 is 110 ° C. or more, as shown in FIG. The time intercept variable γH is obtained.
γH = (γHD−γHC) · (TH−THD) ÷ (THD−THC) + γHD
However, THC = 110 ° C. and THD = 140 ° C.
γHC is reference information predetermined by the applicant based on experimental data, and the value of the high-temperature intercept variable γH corresponding to the heating start time temperature TH of the internal temperature sensor 38 at the start of heating being THC. It is.
γHD is predetermined reference information based on experimental data by the present applicant, and the value of the high-temperature intercept variable γH corresponding to the heating start time temperature TH of the internal temperature sensor 38 at the start of heating being THD. It is.

(Supplementary explanation of total heating time)
In the present embodiment, the low temperature slope variable βC> the medium temperature slope variable βSH> the high temperature slope variable βH, and the low temperature intercept variable γC> the medium temperature intercept variable γSH> the high temperature intercept variable γH. .
That is, when the ratio of the total heating time TM to the temporary heating time TK is R (t) with the temporary heating time TK = x, the total heating time TM = y, and the heating start time point temperature TH = t, that is,
When expressed as y = R (t) · x,
The ratio R (t) of the total heating time TM to the temporary heating time TK will decrease as t (= TH) increases.

  Further, the slope variable β (low temperature) is set such that the absolute value of the fine variable with respect to the change in t (= TH) of the ratio R (t) of the total heating time TM to the temporary heating time TK decreases with increasing t (= TH). An hourly slope variable βC, an intermediate temperature slope variable βSH, and a high temperature slope variable βH), and an intercept variable γ (low temperature intercept variable γC, intermediate temperature intercept variable γSH, high temperature intercept variable γH) are set (see FIG. 7). .

Since it is configured in this manner, the higher the temperature inside the grill warehouse 32 when heating is started, the shorter the total heating time TM is, and it is possible to suppress overheating, and when heating is started. When the temperature inside the grill 32 is high, it is suppressed that the total heating time TM becomes too short and an appropriate heating cooking state (baked state) of the non-heated material cannot be obtained.
That is, a proper cooking state (baked state) of a proper non-heated material can be obtained regardless of the temperature inside the grill box 32 when heating is started.

  Further, by setting the temperature variable Kα using a function, the capacity of the storage unit in the operation control unit H can be reduced, and the function for setting the temperature variable Kα is divided into the change range of the heating start time temperature TH. By defining the function with a function set corresponding to each of the plurality of temperature sections, the function for setting the temperature variable Kα can be set to a simplified function such as a function using a linear function.

When t (= TH) is equal to or higher than a set high temperature (for example, 140 ° C.), the ratio R (t) of the total heating time TM to the temporary heating time TK may be a constant value.
That is, the temperature variable Kα may be set so that the amount of decrease in the temporary heating time TK is constant when the heating start time point temperature TH is equal to or higher than the set high temperature.

  That is, when the heating start time temperature TH of the internal temperature sensor 38 at the start of heating is higher than a certain temperature, it does not contribute much to the baking of the non-heated material. In other words, the heating start time temperature TH is a temperature on the high temperature side. In the above case, since the time point at which the cooking is finished does not change significantly, by configuring in this way, even when the heating start time temperature TH of the internal temperature sensor 38 at the start of heating is high, The total heating time TM is appropriately set, and an appropriate baking state is obtained.

  In the present embodiment, the coordinates (THB, βCB) on the linear function corresponding to the low temperature gradient variable βC and the coordinates (THB, βSHB) on the linear function corresponding to the medium temperature gradient variable βSH are the same coordinates. The coordinates (THB, βCB) on the linear function corresponding to the low temperature gradient variable βC and the coordinates (THB, βSHB) on the linear function corresponding to the medium temperature gradient variable βSH may be different. .

  In the present embodiment, the coordinates (THC, βSHC) on the linear function corresponding to the medium temperature gradient variable βSH and the coordinates (THC, βHC) on the linear function corresponding to the high temperature gradient variable βH are the same coordinates. The linear function coordinates (THC, βSHC) corresponding to the medium temperature inclination variable βSH and the linear function coordinates (THC, βHC) corresponding to the high temperature inclination variable βH may be different from each other. .

  In the present embodiment, the coordinates (THB, γCB) on the linear function corresponding to the low-temperature intercept variable γC and the coordinates (THB, γSHB) on the linear function corresponding to the medium-temperature intercept variable γSH are the same coordinates. The coordinates (THB, γCB) on the linear function corresponding to the low-temperature intercept variable γC and the coordinates (THB, γSHB) on the linear function corresponding to the medium-temperature intercept variable γSH may be different from each other. .

  In the present embodiment, the coordinates (THC, γSHC) on the linear function corresponding to the intermediate temperature intercept variable γSH and the coordinates (THC, γHC) on the linear function corresponding to the high temperature intercept variable γH are the same coordinates. The coordinates (THC, γSHC) on the linear function corresponding to the intermediate temperature intercept variable γSH and the coordinates (THC, γHC) on the linear function corresponding to the high temperature intercept variable γH may be different. .

(Details of control operation)
A control operation of the operation control unit H will be described based on a flowchart.
As shown in FIG. 14, the operation control unit H executes the manual cooking operation when the fire extinguishing switch 23 is turned on after the power switch 9 is turned on (# 1, 2). Since this manual operation is well known, detailed description is omitted in the present embodiment.

  After the power switch 9 is turned on, if the ignition command is not commanded and at least one of the menu switch 29 or the heating adjustment switch 30 is operated (# 2, 3), it is detected by the exhaust gas temperature sensor 37. It is determined whether the detected exhaust gas side detected temperature TH1 is within an appropriate range (for example, −5 ° C. to 100 ° C.) (# 4).

  If the exhaust gas side detection temperature TH1 is within an appropriate range, the exhaust gas side detection temperature TH1 of the exhaust gas temperature sensor 37 at that time is stored as the ignition initial temperature tbo when the grill burner 2 starts heating, and at that time The inside detection temperature TH2 detected by the inside temperature sensor 38 is stored as the heating start time temperature TH (# 5).

Thereafter, when ignition is commanded, an automatic cooking operation is executed (# 6).
Incidentally, if the exhaust gas side detection temperature TH1 detected by the exhaust gas temperature sensor 37 is not within the proper range (in the range of −5 ° C. to 100 ° C.) (# 4), the buzzer BZ (see FIG. 2) A warning sound is generated (# 7), and then the process proceeds to # 2.

  Even if 3 minutes have passed since the power switch 9 was turned on, if there is no input operation by any switch, the power is automatically turned off and the control is ended (# 8, 9). In addition, after storing the ignition initial temperature tbo, the power supply is automatically turned off and the control is ended (# 10) even when the ignition command is not commanded even after 3 minutes.

(Automatic cooking operation)
Next, the automatic cooking operation will be described based on the flowchart of FIG.
In the automatic cooking operation, first, an ignition process for the grill burner 2 is executed (# 30). Specifically, after ignition by the igniter 7 is started, the original solenoid valve 12 and the flow rate control valve 18 are opened to ignite the grill burner 2, and when ignition is confirmed by the ignition detection sensor 8, the igniter 7 Is stopped and the combustion lamp 24 is turned on.

At the start of heating, the heating power of the grill burner 2 is set to a state where the heating amount of the upper surface burner 2a and the lower surface burners 2b, 2c is both high heating power, that is, a set heating amount.
If ignition is not confirmed by the ignition detection sensor 8 within the set time, the original solenoid valve 12 and the flow control valve 18 are closed as a non-ignition error, and a notification process for notifying abnormality is performed.

  After the ignition process, “AU” indicating the automatic cooking operation state is displayed on the timer display unit 26 (# 31). Next, the menu changeover switch 29, the baking adjustment switch 30, and the timer setting switch 25 are displayed. It is switched to the input suppression state that suppresses the reception of the operation input due to the above (# 32). Therefore, while this automatic cooking operation is being performed, an input cannot be performed by these operations. However, it is possible to input an automatic cooking operation cancel command by operating the tear switch 31.

Next, based on the detection information of the exhaust gas temperature sensor 37 and the internal temperature sensor 38, the exhaust gas side detection temperature TH1 of the exhaust gas temperature sensor 37 is 185 ° C. or higher, or the internal detection temperature TH2 of the internal temperature sensor 38 is detected. A temperature abnormality determination process for determining whether or not the temperature is an abnormally high temperature state such as being 190 ° C. or higher is executed (# 33). Next, for determining a temperature rise gradient α and a heat capacity determination time parameter To An information calculation process is executed (# 34).
If it is determined in the temperature abnormality determination process that the temperature is abnormally high, the fire extinguishing process is performed, a warning sound is generated by the sound of the buzzer BZ, and the combustion lamp 24 is blinked 10 times. End cooking operation.

In the determination information calculation process, when 100 seconds have elapsed after the grill burner 2 is ignited and the heating is started, the inside detection temperature TH2 of the inside temperature sensor 38 at that time is stored as the first detection value TB1, When 160 seconds have elapsed since the grill burner 2 was ignited and the heating was started, the inside detection temperature TH2 of the inside temperature sensor 38 at that time is stored as the second detection value TB2.
Then, the temperature increase gradient α is obtained by the above-described equation (3).

In addition, when the exhaust gas side detection temperature TH1 of the exhaust gas temperature sensor 37 reaches the first monitoring temperature X1 (for example, 140 ° C.), the elapsed time required to reach the first monitoring temperature X1 after starting heating is calculated. This is stored as the heat capacity determination elapsed time Y1.
Then, the correction time dt is obtained from the above equation (1), and the heat capacity determination time parameter To is obtained from the above equation (2).

  In the present embodiment, as described above, when the exhaust gas side detected temperature TH1 of the exhaust gas temperature sensor 37 does not reach the first monitoring temperature X1 even if the maximum measurement time Tomax has elapsed since the heating of the grill burner 2 was started. The maximum measurement time Tomax is set as the heat capacity determination elapsed time Y1.

Next, a total heating time setting process for obtaining the total heating time TM is executed (# 35).
That is, first, based on the ratio V (To / α) between the heat capacity determination time parameter To and the temperature increase gradient α calculated as the determination information, the remaining heating time TJ is obtained by the above-described equation (4). Next, the temporary heating time TK is obtained by the above-described equation (5).
In obtaining the temporary heating time TK, the remaining heating time TJ is not obtained from the above equation (4), and the heat capacity determination time parameter To and the temperature increase gradient are obtained using the above equation (5). The temporary heating time TK may be obtained based on the ratio V to α (To / α) and the heat capacity determination elapsed time Y1.

  After the provisional heating time TK is obtained, the temperature variable Kα, that is, the slope variable β and the intercept variable γ are obtained based on the heating start time temperature TH, and then the total heating time TM is calculated by the above equation (6). Will be asked.

  After executing the total heating time setting process, a timer remaining time display process is performed in which the remaining time obtained by subtracting the elapsed heating time from the start of the automatic cooking operation from the total heating time TM is displayed on the timer display unit 26 ( # 36).

Thereafter, when it is detected that the exhaust gas side detection temperature TH1 of the exhaust gas temperature sensor 37 has become equal to or higher than the second monitoring temperature X2 as the heating amount adjustment setting temperature, a heating amount adjustment process for reducing and adjusting the heating power of the grill burner 2 is performed. This is executed (# 37, 38).
That is, in the initial setting state, the branch path for the upper surface burner and the lower surface are set so that the heating amount of the upper surface burner 2a and the lower surface burners 2b, 2c, both of which are adjusted to a set heating amount that gives a strong heating power, is weakly heated. Both of the open / close solenoid valves 16 provided in each of the branch paths branched to the burner branch path are switched to the closed state. The second monitored temperature X2 is set in advance for each cooking menu as shown in FIG.

When the remaining time displayed on the timer display unit 26 becomes zero, that is, when the timer that counts the elapsed heating time since the start of the automatic cooking operation counts up to the total heating time TM (# 39), the original solenoid valve A fire extinguishing process for extinguishing the grill burner 2 is performed by closing the valve 12 (# 40).
Further, following the fire extinguishing process, the alarm process (# 41) for sounding the buzzer BZ and the display of “00” displayed on the timer display unit 26 are blinked 10 times, and then the timer display unit 26 is turned off. The process is executed (# 42), and thereafter, the process proceeds to # 2 in the flowchart of FIG.

Also, if cancellation of the automatic cooking operation is instructed by the take-off switch 31 before the timer for counting the elapsed heating time after the automatic cooking operation starts (# 43), the input suppression state is changed. Cancel and shift to manual cooking operation (# 44).
After shifting to the manual cooking operation, it is possible to make a heating power switching command by operating the thermal power switching switch 27, or to increase / decrease the heating timer time by operating the timer setting switch 25.

  Further, when the point fire extinguishing switch 23 is turned on and a fire extinguishing command is issued in a state where the timer does not count up and the trigger switch 31 is not operated (# 45), the fire extinguishing process as described above is executed (##). 46) Thereafter, the process proceeds to # 2 in the flowchart of FIG.

[Another embodiment]
Hereinafter, other embodiments are listed.
(1) In the above embodiment, the operation control unit H performs the temperature increase gradient α and the heat capacity based on the detection information of the temperature detection unit K and the load determination condition selected according to the cooking menu as the load determination process. A determination time parameter To is obtained, and then a ratio V (To / α) between the heat capacity determination time parameter To and the temperature rise gradient α is obtained, and the remaining heating time is based on the obtained ratio V (To / α). The TJ is configured to be set, but the present invention is not limited to such a configuration and may be configured as follows.

  The remaining heating time TJ is set in various forms such as obtaining the heating time separately based on each of the temperature rise gradient α and the heat capacity determination time parameter To, and summing these times or obtaining an average value. It may be.

  Alternatively, the remaining heating time TJ may be set by determining the thermal load of the object to be heated using only one of the information on the heat capacity determination time parameter To and the temperature increase gradient α.

(2) In the above embodiment, a configuration in which the second monitoring temperature X2 as the heating amount adjustment set temperature and the first monitoring temperature X1 as the discrimination setting temperature are set in advance according to a plurality of cooking menus is exemplified. However, instead of such a configuration, the following configuration may be used.

That is, an indoor temperature sensor is provided as an indoor temperature detector that detects the temperature of the room in which the grill 3 is installed, and the operation control unit H determines and sets the heating amount adjustment set temperature based on the detection result of the indoor temperature sensor. It may be configured to change and set the set temperatures for operation.
For example, the heating amount adjustment set temperature and the discrimination set temperature are changed and set so that the higher the room temperature is, the higher the value is set in accordance with a plurality of cooking menus. If comprised in this way, the discrimination | determination error of the heat load by the difference in room temperature can be made small.

(3) In the above embodiment, the heating by the grill burner 2 as the heating unit is automatically stopped when the elapsed heating time after starting the automatic cooking operation reaches the total heating time TM. Not limited to this, when the elapsed heating time after starting the automatic cooking operation reaches the total heating time TM, a notification operation may be performed and heating may be stopped by a user operation.

(4) In the above embodiment, the upper surface burner 2a and the lower surface burners 2b, 2c in the grill burner 2 as a gas combustion type heating unit are configured so that the heating power can be adjusted in two steps, respectively, in the initial operation state. Although it was adjusted to be a strong heating power and adjusted to be a low heating power both in the upper and lower sides in the heating amount adjustment process, not limited to such a configuration, the heating amount can be set to three or more stages, In the initial operation state, the set heating amount may be set according to the cooking menu, and the heating amount adjustment process may be configured to reduce the heating amount to be smaller than the set heating amount.
For example, when the cooking menu is (Fill / Weak), adjust the upper burner to have a high heating power and the lower burner to a low heating power in the initial operation state, or adjust the upper and lower burners to have low heating power in the initial operation state. It is good also as a structure to do.

(5) In the above embodiment, the cut-off switch 31 is provided, and the automatic cooking operation can be canceled in a state where the combustion of the grill burner 2 is continued. However, without providing such a cut-off switch 31, It is good also as a structure which complete | finishes an automatic cooking driving | operation based only on the instruction | command of the point fire extinguishing switch 23. FIG.

(6) In the above embodiment, the temperature detector K detects the temperature sensor 38 as a temperature sensor for detecting the temperature gradient for detecting the temperature rise gradient α, and the time parameter To for determining the heat capacity. Although the exhaust gas temperature sensor 37 as a temperature sensor for determining the heat capacity is provided, the temperature rise gradient α and the time parameter To for determining the heat capacity can be measured. If it is a thing, you may implement in the form which provides one temperature sensor.

(7) In the above embodiment, the automatic cooking operation command unit E is configured to use the menu changeover switch 29, the baking adjustment switch 30, and the fire extinguishing switch 23. However, instead of such a configuration, the automatic operation starts. It is also possible to provide a dedicated operation switch for commanding.

(8) In the above embodiment, when the temperature rise gradient α is obtained, the first detection value TB1 and the second detection value TB1 are calculated based on the inside detection temperature TH2 of the inside temperature sensor 38 100 seconds and 160 seconds after the grill burner 2 is ignited. Although the case where the detection value TB2 is measured and the temperature increase gradient α is obtained has been illustrated, the manner in which the temperature increase gradient α is obtained based on the internal temperature detection temperature TH2 of the internal temperature sensor 38 can be variously changed.

(9) In the above embodiment, the gas combustion type grill 2 provided in the built-in type gas stove has been exemplified. However, the present invention is not limited to this configuration, and the grill provided in the table type stove may be used. The grill is not limited to a grill built in a stove, and may be configured as a grill alone.

  The configuration disclosed in the above embodiment (including another embodiment, the same shall apply hereinafter) can be applied in combination with the configuration disclosed in the other embodiment, as long as no contradiction occurs. The embodiment disclosed in this specification is an exemplification, and the embodiment of the present invention is not limited to this. The embodiment can be appropriately modified without departing from the object of the present invention.

2 Heating part 23 Heating start command part 32 Grill box 33 Placement part 37 Temperature sensor for heat capacity discrimination 38 Temperature sensor for temperature gradient detection E Automatic cooking operation command part H Operation control part K Temperature detection part Kα Temperature variable MS Cooking menu Command part TH Heating start temperature TJ Residual heating time TK Temporary heating time TM Total heating time To Heat capacity determination time parameter V ratio X1 Setting determination temperature Y1 Initial time α Temperature rise gradient

Claims (7)

A gas combustion type heating unit that heats an object to be heated placed on a placement unit inside the grill cabinet, an operation control unit that controls the operating state, and a temperature detection unit that detects the internal temperature of the grill cabinet A cooking menu command unit that commands a cooking menu corresponding to an object to be heated among a plurality of cooking menus, an automatic cooking operation command unit that commands an automatic cooking operation, and a heating start command that commands a heating start command of the heating unit A grill provided with a portion,
When the operation control unit is instructed to perform automatic cooking operation by the automatic cooking operation command unit,
Based on the heating start command of the heating start command unit, the cooking menu command unit among the detection information of the temperature detection unit after starting heating by the heating unit with a set heating amount and a plurality of load determination conditions A temporary heating time setting process for obtaining a temporary heating time for heating the object to be heated, based on the load determination condition selected according to the cooking menu commanded by
It is set according to the provisional heating time, the heating start time temperature which is detection information of the temperature detection unit when heating by the heating unit is started, and the cooking menu commanded by the cooking menu command unit. Based on the temperature variable, it is configured to execute a total heating time setting process for obtaining a total heating time for heating the object to be heated,
As the temperature variable is higher at the heating start time temperature, the temporary heating time is greatly decreased, and the decrease amount of the temporary heating time with respect to the unit amount increase of the heating start time temperature is increased by the heating start time temperature. A grill set in a form that decreases as you do.   The grill according to claim 1, wherein the temperature variable is set using a plurality of functions determined for each of a plurality of temperature sections obtained by dividing the change range of the heating start time temperature into a plurality of ranges.   The grill according to claim 1 or 2, wherein the temperature variable is set to a form in which a decrease amount of the temporary heating time is made constant when the heating start time temperature is equal to or higher than a set high temperature. The operation control unit, as the temporary heating time setting process,
According to the detection information of the temperature detection unit after starting heating by the heating unit with the set heating amount based on the heating start command of the heating start command unit and the cooking menu commanded by the cooking menu command unit Load determination processing for determining the thermal load of the object to be heated, based on the load determination conditions selected by
Heating the object to be heated after the load determination process is performed based on the thermal load and a calculation condition selected according to the cooking menu commanded by the cooking menu command unit among a plurality of calculation conditions The remaining heating time setting process for setting the remaining heating time until the end of the process, and
An addition process for obtaining the provisional heating time by adding the remaining heating time and an initial time from the start of heating by the heating unit to the end of the load determination process is performed. The grill of any one of 1-3. The operation control unit, as the load determination process,
Based on the detection information of the temperature detection unit and the load determination condition selected according to the cooking menu, in the initial stage after the heating by the heating unit is started, Temperature rise gradient that changes according to the difference in mounting state, and heat capacity determination from when heating by the heating unit that changes according to the difference in heat capacity of the object to be heated to when the temperature rises to the set determination temperature A process for obtaining a time parameter and obtaining a ratio between the heat capacity determination time parameter obtained by dividing the heat capacity determination time parameter by the temperature increase gradient and the temperature increase gradient is executed.
The plurality of calculation conditions are determined such that the larger the ratio, the longer the remaining heating time, and the remaining heating time to be obtained for the same ratio varies depending on the cooking menu. And
The operation control unit is
The said remaining heating time setting process is comprised so that the process which calculates | requires the said remaining heating time based on the said ratio and the said calculation conditions selected according to the said cooking menu may be performed. grill.   As the temperature detection unit, a temperature sensor for determining a temperature gradient for detecting the temperature increase gradient and a temperature sensor for determining a heat capacity for detecting the time parameter for determining the heat capacity are provided separately. The grill according to claim 5.   The grill according to any one of claims 1 to 6, wherein the cooking menu command unit is configured to command the difference in the form of the object to be heated and the heating / discharging of the object to be heated as the cooking menu.

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