JP4710565B2 - grill - Google Patents

Description

  The present invention relates to a grill that is provided in a built-in stove or the like and cooks an object to be cooked such as fish with a burner.

  A built-in stove, a table stove, and the like incorporate a grill that houses a grill net on which an object to be cooked such as fish is placed in a grill cabinet provided with a burner. In such a grill, an exhaust passage is formed at the rear of the grill cabinet through a partition wall, and the grill cabinet and the exhaust passage are provided on the partition wall at a position lower than the placing surface of the cooking object in the grill net. It is known to communicate with the communication port. In this case, the combustion exhaust gas from the burner is once filled in the grill and convected, then overflows from the communication port to the exhaust passage and is discharged from the exhaust port. Without being radiated by the radiant heat of the burner, it is wrapped in high-temperature combustion exhaust gas that is trapped in the grill, and is uniformly cooked by the combustion heat (see, for example, Patent Document 1).

JP 2003-70656 A

  In such a grill, it is common for the user to select the heating power of the burner according to the type and amount of the food to be cooked. In order to know when cooking is complete by setting a timer. Therefore, it is necessary to check the heating frequently and adjust the heating power, which is very troublesome. Even when the timer is used, if the setting time is inappropriate, it may be overbaked or not burnt. There was a bad usability.

  Therefore, the present invention provides a grill that has improved usability by enabling appropriate automatic cooking according to the type and amount of the food to be cooked in a so-called scallop type that performs cooking using combustion exhaust gas. It is intended.

In order to achieve the above object, the invention according to claim 1 is provided with a temperature sensor for detecting the temperature of the combustion exhaust gas, and is placed on the grill at a predetermined point in the control means for controlling the combustion of the burner. The relationship between the temperature of the combustion exhaust gas corresponding to the amount of cooked food and the cooking time is set in advance in a linear control line for each type of cooked food, and from among the plurality of linear control lines One control line can be selected, and the control means automatically determines the cooking time based on the detected temperature at a predetermined time obtained from the temperature sensor on the selected control line, and only the determined cooking time. The automatic cooking control for burning the burner can be executed.
In addition to the object of claim 1, the invention described in claim 2 is provided with a temperature sensor at the time of opening of the communication port in the exhaust passage in order to enable accurate detection of the temperature of the combustion exhaust gas. .

According to the first aspect of the present invention, automatic cooking is possible without adjusting the heating power of the burner, which eliminates the trouble of adjusting the heating power and is excellent in usability. In addition, since the entire object to be cooked is cooked using the combustion exhaust gas, the object to be cooked is heated uniformly, and good cooking is always possible even with automatic cooking. In addition, since there is no need to adjust the thermal power, an electromagnetic valve for thermal power adjustment can be omitted, and there is an advantage that leads to cost reduction. Furthermore, the appropriate automatic cooking according to the kind and quantity of to-be-cooked objects is attained.
According to the second aspect of the present invention, in addition to the effect of the first aspect, the temperature of the combustion exhaust gas overflowing from the communication port to the exhaust passage can be accurately detected.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a longitudinal sectional view showing an example of a grill, which is a double-sided grill provided inside a built-in stove. The grill 1 is pulled out by sliding it forward (to the left in FIG. 1) with a handle 5 with the grill 3 placed on the grill 2 and the grill F 3 on which the cooking object F such as fish is placed. The upper and lower burners 6 for burning the fuel gas are disposed above the grill net 3 on the left and right side surfaces of the grill cabinet 2, and the fuel gas is also disposed below the grill net 3. And a Bunsen type lower burner 7 for burning the gas.
Further, an exhaust passage 9 is provided behind the grill warehouse 2 via a partition wall 8, and the partition wall 8 has a communication opening that opens at a position lower than the placement surface of the cooking object F in the grill 3. 10 is formed. Further, when the communication port 10 is opened in the exhaust passage 9, a temperature sensor 11 (for example, a thermistor) that detects the temperature of the combustion exhaust gas has a temperature sensing part at the tip close to the communication port 10 and slightly above the upper end of the communication port 10. It is arrange | positioned so that it may become a position. An exhaust duct 12 is connected to the upper side of the exhaust path 9 and opens toward an exhaust port 14 formed in the top plate 13.

  Therefore, in this grill 1, when an ignition button provided on the front face of the built-in stove is pressed, a controller (not shown) serving as a control means performs ignition control of the upper and lower burners 6 and 7 and supplies gas to the upper and lower burners 6 and 7. A holding current is supplied to an electromagnetic valve provided in the pipe to start combustion. A thermocouple (not shown) for detecting a flame is provided in the vicinity of the upper burner 6, and the controller monitors the thermoelectromotive force of the thermocouple, and if the thermoelectromotive force is equal to or higher than a predetermined level, the controller If the supply of the holding current is continued and the thermoelectromotive force falls below a predetermined level due to misfire or the like, the supply of the holding current is stopped, the electromagnetic valve is closed, and the gas supply is shut off.

  The high-temperature combustion exhaust gas generated by the combustion of the upper and lower burners 6 and 7 once stays in the upper part of the grill 2 and convects, then overflows into the exhaust passage 9 from the communication port 10 and is directly exhausted by the draft effect. 12 rises and is discharged from the exhaust port 14. Therefore, the to-be-cooked object F placed on the placing surface of the grill 3 is wrapped in the convection of the high-temperature combustion exhaust gas that fills the inside of the grill cabinet 2, and is heated to every corner by the combustion heat and cooked well. The In this way, by heating the cooking object F on the grill net 3 with the combustion heat of the combustion exhaust gas, it is possible to reduce the heating to the grilled fat accumulated in the tray 4 at the lower part of the grill 2 and the cooking performance. The temperature of the baked fat can be lowered below the ignition point without impairing the temperature. That is, the burning of the grilled fat due to overheating is prevented even if the tray 4 is not filled with water.

  On the other hand, the grill 1 is provided with an automatic cooking function. First, as shown in FIG. 2, three patterns of control lines A to C in which the relationship between the temperature of the combustion exhaust gas obtained from the temperature sensor 11 and the cooking time are set are stored in advance in the storage unit of the controller. In this control line, A is stronger, B is standard, and C is weaker, and the user can select the type of food to be cooked (grilled, sliced, dried fish, etc.) and quantity using the selection switch on the front. Thus, a control line assigned in advance can be selected.

Hereinafter, an automatic cooking function is demonstrated according to the flowchart of FIG.
After the upper and lower burners 6 and 7 are ignited, the selection switch is turned on in S1, that is, the control line corresponding to the object to be cooked is selected. In S2, the automatic cooking switch provided on the front is turned on. The controller detects the temperature of the combustion exhaust gas by the temperature sensor 11 in S4 after waiting for elapse of a predetermined time (for example, 30 seconds) after the cooking switch is turned on. Next, cooking time is determined from the detected temperature obtained here according to the selected control line (S5). In FIG. 2, the cooking time determined for each of the case of one fish and the case of four fish is illustrated, but the cooking time naturally increases as the size and amount of the object to be cooked increase.
When the cooking time automatically determined in S5 elapses (S6), the solenoid valve is closed in S7 to extinguish the upper and lower burners 6 and 7, and notification by a buzzer, a lamp or the like is performed to end the automatic cooking. Inform.

  As described above, according to the grill of the above embodiment, the temperature sensor 11 for detecting the temperature of the combustion exhaust gas is provided, while the controller sets in advance the relationship between the temperature of the combustion exhaust gas corresponding to the object to be cooked and the cooking time. The controller automatically determines the cooking time based on the detected temperature obtained from the temperature sensor 11 and enables automatic cooking control to burn the upper and lower burners 6 and 7 for the determined cooking time. Since automatic cooking is possible without adjusting the heating power of No. 7, there is no need to adjust the heating power, and it is easy to use. In addition, since the food to be cooked is cooked using the combustion exhaust gas, both the upper and lower surfaces are heated uniformly, and good cooking is always possible even with automatic cooking. In addition, since there is no need to adjust the thermal power, an electromagnetic valve for thermal power adjustment can be omitted, and there is an advantage that leads to cost reduction.

In particular, here, the temperature sensor 11 is provided when the communication port 10 is opened in the exhaust passage 9, so that the temperature of the combustion exhaust gas overflowing from the communication port 10 to the exhaust passage 9 can be accurately detected.
Also, three patterns of linear control lines for setting the relationship between the temperature of the combustion exhaust gas and the cooking time are set corresponding to the type of food to be cooked, and any of the control lines A to C is set when automatic cooking control is executed. By making it selectable, it becomes possible to select an appropriate cooking time according to the type and amount of the object to be cooked, and the usability is improved.

Note that the control line is not limited to three patterns, and can be increased or decreased as appropriate. The control line may be changed to a linear shape, a curved shape, or a stepped shape.
On the other hand, a plurality of temperature sensors can be arranged in parallel in the left-right direction, or can be changed in design such as being arranged in the grill cabinet instead of the exhaust passage.
Moreover, in the said form, although the temperature of combustion exhaust gas is detected only after the lapse of a predetermined time after the automatic cooking switch is turned on, the temperature is detected every predetermined time to correct the cooking time each time, or within the predetermined time. The cooking time may be determined by calculating the gradient of the temperature change.
Furthermore, the automatic cooking control is a procedure in which, for example, a selection switch is selected after the automatic cooking switch is turned on, and a predetermined control line is automatically selected if the selection switch is not operated within a predetermined time. These can be changed as appropriate.

And in the said form, although it is a double-sided grill which provided the burner on the upper and lower sides of the grill, it may be a single-side grill which provided the burner only on the upper side of the grill. Of course, the present invention is not limited to a grill provided in a built-in stove, but can be applied to any type such as a built-in cooktop that uses combustion exhaust gas such as a built-in stove or a single grill.

It is a longitudinal cross-sectional view of a grill. It is a graph which shows the relationship between the temperature of combustion exhaust gas, and cooking time. It is a flowchart of automatic cooking control.

Explanation of symbols

1 ··· Grill 2 ··· Grill compartment 3 ··· Grille 6 ··· Upper burner 7 · · Lower burner 8 · · Partition wall 9 · · Exhaust passage 10 · · Communication port 11 · · · Temperature sensor.

Claims (2)

A grill net provided with a burner accommodates a grill net for placing an object to be cooked, and an exhaust passage is formed through a partition wall behind the grill warehouse, and the grill wall An object to be cooked is provided by the combustion heat of the combustion exhaust gas of the burner provided with a communication port communicating with the exhaust passage at a position lower than the placing surface of the object to be cooked in the grill and filled in the grill box. Which can be cooked by heating,
While providing a temperature sensor for detecting the temperature of the combustion exhaust gas, the control means for controlling the combustion of the burner has the combustion exhaust gas corresponding to the amount of the cooking object placed on the grill at a predetermined time point. A plurality of the relationship between the temperature and the cooking time are set in advance in a linear control line for each type of cooking object, and one control line can be selected from the plurality of linear control lines, and The control means automatically determines cooking time on the selected control line based on the detected temperature at the predetermined time obtained from the temperature sensor, and burns the burner for the determined cooking time. A grill characterized by making it feasible.   The grill according to claim 1, wherein the temperature sensor is provided at the time of opening of the communication port in the exhaust passage.

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