JP6932535B2 - Gas grill - Google Patents

Description

The present invention relates to a gas grill used for grill cooking, and more particularly to a gas grill having an automatic cooking function of various menus.

Among the gas grills used for grilling foods such as meat and fish, there is a gas grill having an automatic cooking function capable of performing automatic cooking for various menus.

As such a gas grill, Patent Document 1 describes a cooking container stored in the grill, a heating means for heating the cooking container for storing the object to be cooked, and a heating amount adjusting means for adjusting the heating amount of the heating means. The cooking unit is provided with a temperature detecting means for detecting the heating state of the cooking container by the heating means and a control unit for controlling the heating means via the heating amount adjusting means based on the detection result by the temperature detecting means. The execution time of each cooking process is calculated based on the temperature detection result by the temperature detection means after the start of heating to the object, and a plurality of cooking processes corresponding to the selected cooking menu are performed in consideration of the specified heating amount of the cooking process. A grill device (gas grill) that is executed by executing only the calculated time is disclosed.

According to the gas grill of Patent Document 1 described above, it is meaningful because a cooking container containing an object to be cooked can be housed in a grill and cooking of various cooking menus can be performed by automatic cooking.

Japanese Unexamined Patent Publication No. 2016-052389

However, in the gas grill of Patent Document 1, due to the influence of the heat capacity of the cooking container containing the object to be cooked, the control unit executes each cooking step based on the temperature detection result by the temperature detecting means after the start of heating the object to be cooked. When calculating the time, it may be difficult to properly determine the execution time of each cooking process.
In other words, if the heat capacity of the cooking container is excessive compared to the heat capacity of the object to be cooked, it may be difficult to properly determine the execution time of each cooking process, and from the viewpoint of good automatic cooking. The reality is that there is room for improvement.

The present invention solves the above-mentioned problems, and when a cooking container for storing an object to be cooked is housed in a grill and automatic cooking is performed for various cooking menus, the execution time of each cooking step is appropriately set. It is an object of the present invention to provide a gas grill that can be sought and can be cooked well automatically.

In order to achieve the above object, the gas grill of the present invention
A cooking container that is stored in the grill with the food to be cooked
A grill burner that heats the cooking container and
A heating amount adjusting means for adjusting the heating amount of the grill burner, and
A temperature detecting means for detecting the heating state of the cooking container by the grill burner, and
A control unit that controls the grill burner via the heating amount adjusting means based on the detection result by the temperature detecting means is provided.
Based on the relationship between the heating time and the temperature rise width of the cooking container when the control unit accommodates the cooker containing the food to be cooked in the grill and heats the cooker with the grill burner. The gas grill is configured to obtain the total heating time, which is the total value of the heating time by the grill burner.
The control unit executes a first heating step of heating the cooking container containing the object to be cooked with a predetermined first thermal power.
After the temperature of the cooking container containing the object to be cooked reaches a predetermined temperature, a second heating step of heating the cooking container with a predetermined second heating power smaller than the predetermined first heating power is executed.
It is characterized in that the total heating time is obtained based on the relationship between the heating time in the second heating step and the temperature rise width of the cooking container containing the object to be cooked.

Further, in the gas grill of the present invention, the relationship between the heating time in the first heating step and the temperature rise width of the cooking container, and the relationship between the heating time in the second heating step and the temperature rise width of the cooking container. It is preferable that the total heating time is determined based on the above.

Further, the relationship between the heating time in the first heating step and the temperature rise width of the cooking container, the relationship between the heating time in the second heating step and the temperature rise width of the cooking container, and the second heating step. It is preferable that the total heating time is obtained based on the relationship between the heating time in another heating step executed later and the temperature rise width of the cooking container.

In the gas grill of the present invention, the control unit executes a first heating step of heating the cooking container with a predetermined first heating power, and after the temperature of the cooking container reaches a predetermined temperature, the cooking container is made smaller than the predetermined first heating power. It is configured to execute the second heating step of heating with a predetermined second heating power and to obtain the total heating time based on the relationship between the heating time in the second heating step and the temperature rise width of the cooking container. Therefore, when a cooking container containing an object to be cooked is stored in a grill and automatic cooking is performed for various cooking menus, it is possible to appropriately determine the execution time of each cooking process. Since the total heating time, which is the total value of the heating time, can be accurately obtained, it is possible to provide a gas grill capable of performing good automatic cooking.

Further, the total heating time is calculated based on the relationship between the heating time in the first heating step and the temperature rise width of the cooking container and the relationship between the heating time in the second heating step and the temperature rise width of the cooking container. In this case, the total heating time can be obtained more accurately, and a gas grill capable of performing better automatic cooking can be provided.

In addition, the relationship between the heating time in the first heating step and the temperature rise width of the cooking container, the relationship between the heating time in the second heating step and the temperature rise width of the cooking container, and the execution after the second heating step, etc. When the total heating time is calculated based on the relationship between the heating time in the heating process and the temperature rise width of the cooking container, the total heating time can be obtained more accurately, and better automatic cooking can be performed. Can provide a gas grill capable of doing.

Even if another heating step executed after the second heating step is provided, the cooking container temperature is sufficient in the first heating step and the second heating step performed up to the other heating step. Since it is heated to, there is almost no effect on the total heating time required even if the relationship between the heating time in the other heating steps described above and the temperature rise width of the cooking container is not corrected based on the initial cooking container temperature. , The total heating time can be calculated accurately.

It is a perspective view of the gas cooker (gas stove) provided with the gas grill which concerns on one Embodiment of this invention. It is a notch perspective view of the gas grill which concerns on one Embodiment of this invention. It is a perspective view of the operation part of the gas grill which concerns on one Embodiment of this invention. It is a block diagram which shows the mechanism of the heating amount control of the gas grill which concerns on one Embodiment of this invention. It is operation explanatory drawing of the heating amount control of the gas grill which concerns on one Embodiment of this invention. It is a time chart of the heating amount control of the gas grill which concerns on one Embodiment of this invention.

Hereinafter, embodiments of the present invention will be shown, and the features thereof will be described in more detail.

[Embodiment]
In this embodiment, a gas stove (gas cooker) incorporating the gas grill according to the embodiment of the present invention will be described as an example.

<Overall composition of gas stove>
First, the overall configuration of the gas stove will be described, and then the characteristic configuration of the present invention will be described.

As shown in FIG. 1, the gas stove according to this embodiment is a built-in type gas stove (gas cooker) 1 including a gas grill 3 according to the embodiment of the present invention and two stoves 2 (2a, 2b). be.

The stoves 2 (2a, 2b) are arranged on the left and right sides of the top plate 10. Further, on the left and right sides on the front side of the top plate 10, operation units 20 (20a, 20b) for ignition, fire extinguishing, and flame adjustment for the stove 2 (2a, 2b) are arranged, and on the back side of the top plate 10. An exhaust port 39 in the gas grill 3 is provided.

In the gas grill 3, the grill storage 31 is arranged inside the central portion in the left-right direction of the gas stove (gas cooker) main body 1a, and the grill door 34 is arranged in the central portion in the left-right direction on the front surface of the gas stove (gas cooker) main body 1a. As shown in FIG. 2, the upper burner 32 is arranged on the upper side and the lower burner 33 is arranged on the lower side in the grill storage 31. The upper burner 32 located above is a general grill burner in which flame holes are lined up in a straight line, while the lower burner 33 located below is for a stove (two stoves 2a and 2b). Like the burner, it is a type of burner in which flame holes are lined up in a ring. This is because the gas grill 3 is premised on cooking the food to be cooked in the cooking container 5 instead of the grill. That is, as will be described later, the gas grill 3 is configured to put an object to be cooked in a container without a lid and a container with a lid for cooking.

A grill operation unit 30 is provided on one side of the front surface of the gas stove (gas cooker) main body 1a. The operation unit 30 for the grill is a touch panel type, and as shown in FIG. 3, the menu changeover switch 301, the cooking mode changeover switch 302, the heat control changeover switch 303, the point fire extinguishing switch 304, the timer switch 305, the cancel switch 306, etc. In addition to the switch, it includes a menu display unit 311, a cooking mode display unit 312, a heat control display unit 313, a timer display unit 315, and the like.

In the gas stove (gas cooker) 1 of this embodiment, each time the menu changeover switch 301 is operated, "fish: grilled" → "fish: fillet" → "hamburger" → "grilled chicken" → "toast" → " It is configured so that the display of the menu display unit 311 is switched in the order of "rice" → "fish: grilled figure".

With respect to the menu set by the menu changeover switch 301, the finish of cooking can be adjusted by the heat control changeover switch 303. In addition, "heating" at the time of automatic cooking means that the heating power is adjusted so that the strength can be given to the way of browning, for example, and the heating power itself is automatically used as one of the control items of automatic cooking. It is configured to be adjusted in a positive manner.

Then, select "bake" with the cooking mode changeover switch 302, and select any of "fish: grilled", "fish: fillet", "hamburger", "grilled chicken", and "toast" with the menu changeover switch 301. When the fire extinguishing switch 304 is pressed, the control unit 100 (see FIG. 1) configured by the microcomputer executes the grill automatic control described later to perform automatic cooking.

Then, in the gas stove (gas cooker) 1 of this embodiment, for automatic cooking, the gas grill 3 is provided with two temperature sensors 61 and 62 as temperature detecting means for detecting the heating state of the cooking container 5 by the grill burner. (See Fig. 2).

As shown in FIG. 2, the temperature sensor 61 is attached to the lower burner 33 on the lower side and comes into contact with the bottom surface of the cooking container 5 to detect the temperature of the cooking container 5.

The temperature sensor 62 is installed in the exhaust passage 38 from the grill storage 31 to the exhaust port 39, and indirectly detects the temperature inside the grill storage by detecting the temperature of the exhaust gas.

FIG. 4 shows a mechanism for controlling the amount of heat by the upper burner 32 and the lower burner 33 of the gas grill 3, that is, the configuration of the heat amount adjusting means 200, and the motor valve 7 and the motor arranged in the gas supply system path. It includes a closing valve 64 (64a) arranged between the valve 7 and the upper burner 32, and a closing valve 64 (64b) arranged between the motor valve 7 and the lower burner 33.

As shown in FIG. 5, the motor valve 7 has a motor valve 7.
(A) A gas amount control plate 71 having fuel gas flow control holes 72a and 72b and performing linear motion by a motor M (see FIG. 4).
(B) A tip 73a corresponding to the upper burner 32 provided with a plurality of gas flow holes 74a, and a tip 73a.
(C) The configuration is provided with a chip 73b corresponding to the lower burner 32 provided with a plurality of gas flow holes 74b, and the fuel gas flow control holes 72a and 72b overlapping the gas flow holes 74a and 74b. Is configured to be able to control the flow rate of the fuel gas supplied to the upper burner 32 and the lower burner 33 by changing the gas amount control plate 71 by moving the gas amount control plate 71.

Here, the tip 73a is provided with four gas flow holes 74a for the upper burner 32, and the tip 73b is provided with four gas flow holes 74b for the lower burner 33. ,
(A) As shown in FIG. 5 (a), both the upper burner 32 and the lower burner 33 have high heat.
(B) As shown in FIG. 5 (b), the upper burner 32 has a high heat and the lower burner 33 has a low heat.
(C) As shown in FIG. 5 (c), the upper burner 32 has a low heat and the lower burner 33 has a high heat.
(D) As shown in FIG. 5 (d), both the upper burner 32 and the lower burner 33 have low heat.
4 states and
(E) As shown in FIG. 5 (e), none of the fuel gas flow control holes 72a and 72b overlaps with any of the gas flow holes 74a and 74b of the chips 73a and 73b, and the upper burner 32, the state where the gas supply to the lower burner 33 is cut off,
Is configured to be obtained by the motor valve 7.

By the way, the high heat of the upper burner 32 is 750 kcal / h (872 W), the low heat is 650 kcal / h (756 W), the high heat of the lower burner 33 is 1250 kcal / h (1454 W), and the low heat is 300 kcal / h (349 W). The lower burner 33 arranged below the upper burner 32 arranged is configured so that the heating amount can be changed more significantly. This is an advantage obtained by using a stove type burner as the lower burner 33.

When both the upper burner 32 and the lower burner 33 are extinguished, the motor valve 7 is controlled to the state shown in FIG. 5 (e), but only one of the upper burner 32 and the lower burner 33 is extinguished and the other is extinguished. When the combustion is continued, the gas supply to the fire extinguishing side of the upper burner 32 and the lower burner 33 is shut off by the shutoff valve 64, specifically, the shutoff valve 64a or the shutoff valve 64b.

Further, the movement control of the gas amount control plate 71 in the motor valve 7 is configured so that the movement control can be performed more finely. For example, the gas amount control plate 71 is slightly moved from the state shown in FIG. 5A. Therefore, it is configured so that the flow rate of the fuel gas can be controlled more finely.

A stepping motor is used as the motor M (FIG. 4) in the motor valve 7, and the drive speed of the stepping motor M can be adjusted by adjusting the switching speed of the drive pulse applied to the stepping motor M. It is configured so that the change speed of the fuel gas by the motor valve 7 can be adjusted by changing.

Then, when the gas amount is changed from the state corresponding to the ignition gas amount at the time of grill ignition to another fuel gas amount different from this ignition gas amount, the driving speed of the stepping motor M is reduced to reduce the upper burner 32. It is configured to prevent combustion defects such as the flame of the lower burner 33 being lifted or blown out, and to maintain stable combustion of the upper burner 32 and the lower burner 33.

In the gas grill 3 of this embodiment, a container with a lid and a container without a lid are attached as the cooking container 5. And the container with a lid is used for cooking such as "boil" and "steam", and for cooking such as "baking bread" and "cooking rice", and the container without a lid is "fish: It is planned to be used when cooking "figure grilled", "fish: fillet", "hamburger", "grilled chicken", "toast", etc.

In this embodiment, a container without a lid is used as the cooking container 5, the cooking mode is set to "baking", and among "fish: roasted", "fish: fillet", "hamburger", "grilled chicken", and "toast". The automatic cooking executed when the point fire extinguishing switch 304 is pressed and operated after selecting any of the above will be described.

When the temperature sensor 62 is equal to or higher than the predetermined reception upper limit temperature, the automatic grill control cannot be properly executed. Therefore, the control unit 100 does not accept the operation of the menu changeover switch 301 and cannot set the menu. It is configured in.

<Characteristic configuration of gas grill>
The control unit 100, which controls automatic cooking by operating the point fire extinguishing switch 304, drives the motor valve 7 to the state shown in FIG. 5A to start supplying gas to the upper burner 32 and the lower burner 33. When ignition is performed and the ignition sensors provided in the upper burner 32 and the lower burner 33 detect ignition, as shown in FIG. 6, the thermal powers of the upper burner 32 and the lower burner 33 are set to the predetermined first thermal power (for example, upper burner = high heat). , Lower burner = high heat) to execute the first heating step (cooking step).

In the first heating step (cooking step), the control unit 100 stores the detected temperature of the temperature sensor 61 at the time when T0 elapses after the lower burner 33 detects ignition as TH0.

In the first heating step (cooking step), the control unit 100 stores the time until the detection temperature of the temperature sensor 61 reaches the designated measurement temperature e1 as the designated temperature arrival time X1.

After the detection temperature of the temperature sensor 61 reaches the designated measurement temperature e1, the thermal power of the upper burner 32 and the lower burner 33 is changed to the predetermined second thermal power (for example, upper burner = high heat, lower burner =) smaller than the predetermined first thermal power described above. Set to low heat) and execute the second heating step (cooking step).

The control unit 100 stores the detected temperature of the pot temperature sensor 61 as e2 at the end of the second heating step (cooking step) (at the end of the total time of the designated temperature arrival time X1 and the designated measurement time X2).

The temporary total baking time (temporary total heating time) Δht is obtained by the following equation and stored in the control unit 100.
Δht = X1, α-e2, β + U …… (Equation 1)
= X1 ・ (M ・ TH0 + N) -e2 ・ (P ・ TH0 + Q) + U …… (Equation 2)
However,
α = M · TH0 + N β = P · TH0 + Q …… (Equation 3)
M, N, P, Q, and U are positive constants preset for each cooking menu.

The total baking time (total heating time) T is obtained by the following equation and stored in the control unit 100.
T = γ ・ Δht + δ …… (Equation 4)
= (A ・ TH0 + b) ・ Δht + (c ・ TH0 + d) …… (Equation 5)
= (A ・ TH0 + b) ・ (X1 ・ (M ・ TH0 + N) -e2 ・ (P ・ TH0 + Q) + U) + (c ・ TH0 + d) …… (Equation 6)
However,
γ = a · TH0 + b δ = c · TH0 + d …… (Equation 7)
a, b, c, d, M, N, P, Q, and U are positive constants preset for each cooking menu.

The secondary designated thermal power time X4 is obtained by the following equation and stored in the control unit 100.
X4 = TA …… (Equation 8)
= T ・ (i ・ TH0 + j) …… (Equation 9)
However,
A = i · TH0 + j …… (Equation 10)
i and j are positive constants set in advance for each cooking menu.

The primary designated thermal power time X3 is obtained by the following equation, and the control unit 100 stores it.
X3 = T- (X1 + X2 + X4) …… (Equation 11)

The residual heat time TY is obtained by the following equation and stored in the control unit 100.
TY = TB …… (Equation 12)
= T ・ (k ・ TH0 + L) …… (Equation 13)
However,
B = k · TH0 + L …… (Equation 14)
k and L are positive constants set in advance for each cooking menu.

The remaining baking time (remaining heating time) (remaining cooking time) TX is calculated by the following equation, displayed on the timer display unit 315, and the thermal power of the upper burner 32 and the lower burner 33 is set to the predetermined third thermal power (for example, upper burner =). Set to low heat, lower burner = low heat) and execute the third heating step (cooking step).
TX = T + TY-t …… (Equation 15)
However, t is the elapsed time since the ignition sensor provided in the grill burner detects ignition.

The timer display unit 315 displays two digits in minutes.

After that, the time displayed on the timer display unit 315 is counted down with the passage of time, and when X3 elapses after the start of the third heating step (cooking step), the thermal power of the upper burner 32 and the lower burner 33 is set to the predetermined fourth. The fourth heating step (cooking step) is executed by setting the heating power (for example, upper burner = off, lower burner = 160 ° C. temperature control).

Here, the lower burner = 160 ° C. temperature control means that the control for switching the strength / weakness of the thermal power of the lower burner 33 is performed so that the detection temperature of the temperature sensor 61 is maintained at 160 ° C.

After that, the time displayed on the timer display unit 315 is counted down with the passage of time, and when the time displayed on the timer display unit 315 becomes equal to TY, the gas supply to the upper burner 32 and the lower burner 33 is stopped. Then, the upper burner 32 and the lower burner 33 are extinguished.

Even after the upper burner 32 and the lower burner 33 are extinguished, the time displayed on the timer display unit 315 continues to count down.

When the time displayed on the timer display unit 315 reaches "0" (zero), the notification that the grill cooking is completed is performed.

In the present embodiment, as a notification that the grill cooking is completed, "00" (zero zero) is blinked on the timer display unit 315, and "the grill cooking is completed" is notified by voice.

As described above, in the gas grill 3 provided in the gas cooking utensil 1 of the present embodiment, the first heating step of heating the cooking container 5 on which the object to be cooked is placed with a predetermined first thermal power is executed, and the cooking container 5 is executed. After the temperature of the cooking container 5 reaches the predetermined temperature e1, a second heating step of heating the cooking container 5 with a predetermined second heating force smaller than the predetermined first heating force is executed, and the heating time in the second heating step and the temperature of the cooking container 5 are executed. It is configured to obtain the total baking time (total heating time) T based on the relationship with the rising width.

Therefore, even when the heat capacity of the cooking container 5 is large, the total baking time (total heating time) T is appropriately obtained based on the relationship between the heating time in the second heating step and the temperature rise width of the cooking container 5. be able to.

That is, after the first heating step is completed, the heating power of the lower burner 33 is set to a predetermined second heating power smaller than the predetermined first heating power (the heating power is weakened), so that the difference in the heat capacity of the object to be cooked is the detection temperature of the temperature sensor 61. This makes it possible to appropriately obtain the total baking time (total heating time) T.

For example, in the present embodiment, as shown in FIG. 6, the temperature gradient of the cooking container 5 is a negative value at the beginning of the second heating step (that is, the cooking container 5 with the passage of the heating time). and it has a tendency that the temperature of the drops), which is the heat capacity of the food placed on the cooking container 5 is a characteristic that appears when particularly large.

In this case, since the temperature gradient of the cooking container 5 is negative at the beginning of the second heating step, e2 becomes a small value, which is reflected in (Equation 1) and (Equation 4), and the total baking time (total heating). Time) T becomes a large value, and the total baking time (total heating time) T can be appropriately obtained.

Further, in the gas grill 3 of the present embodiment , the relationship between the heating time in the first heating step and the temperature rise width of the cooking container 5 and the relationship between the heating time in the second heating step and the temperature rise width of the cooking container 5 are based on. Therefore, the total baking time (total heating time) T is calculated.

With this configuration, when an object to be cooked having a particularly large heat capacity is placed in the cooking container 5, the heat capacity of the object to be cooked can be better reflected in the total baking time (total heating time) T. Therefore, it becomes possible to accurately obtain the total baking time (total heating time) T.

Further, in the present embodiment, the relationship between the heating time and the temperature rise width of the cooking container 5 is obtained in each of the plurality of sections of the first heating step and the second heating step, and based on each obtained relationship , total baking is performed. It is configured to obtain the time (total heating time) T.

With this configuration, the total baking time (total heating time) T can be obtained more appropriately.

In the above embodiment, the plurality of sections for obtaining the relationship between the heating time and the temperature rise width of the cooking container 5 are two sections, the first heating step and the second heating step, but the heating time and the cooking container 5 By setting a plurality of sections for which the relationship with the temperature rise width of the above is to be obtained as three or more sections, the total baking time (total heating time) T can be further appropriately obtained.

It is also possible to obtain the relationship between the heating time and the temperature rise width of the cooking container 5 only in the second heating step, and to obtain the total heating time T based on one of the obtained relationships. Even with such a configuration, a reliable total heating time T can be obtained with a simple configuration.

The present invention is not limited to the above embodiment in other respects as well, and various modifications can be made within the scope of the present invention.

1 Gas cookware (stove with gas grill)
1a Gas stove (gas cooker) body 2 (2a, 2b) Stove 3 Gas grill 5 Cooking container 7 Motor valve 30 Grill operation unit 31 Grill storage 32 Upper burner 33 Lower burner 34 Grill door 61 Temperature sensor (temperature detection means)
62 Temperature sensor (temperature detection means)
100 Control unit 200 Heat amount adjusting means 64 (64a, 64b) Shut-off valve 71 Gas amount control plate 71 and
72a, 72b Fuel gas flow control hole 73a, 73b Chip 74a, 74b Gas flow hole M motor (stepping motor)

Claims (3)

A cooking container that is stored in the grill with the food to be cooked
A grill burner that heats the cooking container and
A heating amount adjusting means for adjusting the heating amount of the grill burner, and
A temperature detecting means for detecting the heating state of the cooking container by the grill burner, and
A control unit that controls the grill burner via the heating amount adjusting means based on the detection result by the temperature detecting means is provided.
Based on the relationship between the heating time and the temperature rise width of the cooking container when the control unit accommodates the cooker containing the food to be cooked in the grill and heats the cooker with the grill burner. The gas grill is configured to obtain the total heating time, which is the total value of the heating time by the grill burner.
The control unit executes a first heating step of heating the cooking container containing the object to be cooked with a predetermined first thermal power.
After the temperature of the cooking container containing the object to be cooked reaches a predetermined temperature, a second heating step of heating the cooking container with a predetermined second heating power smaller than the predetermined first heating power is executed.
Wherein in the second heating step, on the basis of the relationship between the heating time and the temperature rise of the said cooking vessel the food is housed, characterized in that it is configured to determine the total heating time gas grill .. Relationship between the temperature rise of the cooking container and the heating time in the first heating step, and, based on the relationship of the heating time and the temperature rise of the cooking container in the second heating step, the total heating time The gas grill according to claim 1, wherein the gas grill is configured as required. The relationship between the heating time in the first heating step and the temperature rise width of the cooking container, the relationship between the heating time in the second heating step and the temperature rise width of the cooking container, and execution after the second heating step. The gas grill according to claim 2, wherein the total heating time is obtained based on the relationship between the heating time in another heating step and the temperature rise width of the cooking container.

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