KR940005904B1 - Method of controlling gas grill - Google Patents

Abstract

The grill controlling method includes a timer for simultaneously supplying gas to the grill burner and igniting or extinguishing and combusting gas on the grill burner, a time display for displaying the rest of the set timer, and an means for indicating that the operation of the set timer is ended after the lapse of the set time. The operation of the timer is started by detecting the ignition of the grill burner, thereby providing a gas table having a timer to stop automatically the combustion of the grill burner after a predetermined period of operation time.

Description

Grill Control Method of Gas Table

1 is a time flow chart for explaining the operation of the gas table which is an embodiment of the present invention.

2 is a perspective view of the gas table.

3 is a functional block diagram for explaining the contents of the gas table.

4 is a gas circuit diagram of the gas table.

5 and 6 are waveform diagrams for explaining the buzzer sound of the gas table.

7 is an explanatory diagram of another embodiment of the time display of the gas table.

* Explanation of symbols for main parts of the drawings

4 grill 4b grill burner

25: time display unit 33: grill control unit (grill control unit)

33a: timer unit (timer) 34: buzzer (notification means)

The present invention relates to a grill control method in a gas table provided with a timer for automatically stopping combustion when the operation time is more than a predetermined time.

Practical Publication No. 58-46949 discloses safety in case of forgetting the fire extinguishing operation, and automatically stops the supply of gas by extinguishing the gas by a timing circuit that outputs an output signal after a predetermined time has elapsed after igniting the gas. There is a gas appliance that sounds an alarm.

In this case, power is normally supplied by the ignition operation, and at the same time, the timer starts to operate.

However, the gas grill is provided with an opening and closing door on the front of the gas table, so that it is not easy to determine whether the grill burner is burning.

Therefore, when the conventional technique is applied to a gas grill, a timer operation is started regardless of ignition, so that even if an alarm sounds after a predetermined time, there is a problem that cooking is not performed at all if ignition is not performed. You can expect that.

In addition, when the remaining time of the timer is displayed on the display unit, it is easy to judge that it is in combustion because the number of display hours and the like change to hour, even when ignition is not performed.

SUMMARY OF THE INVENTION An object of the present invention is to provide a grill control method of a gas table, which enables a user to conveniently use a grill without judging a mistake by an alarm sound or a display.

In order to achieve the above object, the present invention adopts the following method.

(A) A timer for burning the grill burner for a predetermined time while controlling the operation of fuel supply to the grill burner, ignition, fire extinguishing and combustion of the grill burner, and a time operation of the timer after the predetermined time has elapsed. In the grill control apparatus provided with the notification means which sounds an alarm sound when it finishes, the time operation of the said timer is started by the ignition detection of the grill burner.

(B) a timer for burning the grill burner for a predetermined time and controlling the operation of fuel supply to the grill burner, ignition, fire extinguishing and combustion of the grill burner, and a time display unit for displaying the remaining time of the timer; In one grill control apparatus, the time operation of the timer is started by the ignition detection of the grill burner.

At this time, the grill control device supplies fuel to the grill burner and performs ignition operation.

When combustion starts and ignition detection is made, the timer starts a timed operation and the indicator displays the remaining number of hours of operation. After a predetermined time has elapsed, when the time limit of the timer is finished, the notification means simultaneously notifies and the control device of the grill automatically extinguishes the grill burner by stopping fuel supply to the grill burner. Therefore, when no ignition occurs, the timer does not start the time operation.

Therefore, even if the grill burner is not burning, the timer starts the time operation and alarms the user when the timer is over.

Since the display of the time display portion does not change when the grill burner is not burning, the user is not mistaken that it is burning.

Hereinafter, embodiments to which the present invention is applied will be described with reference to FIGS. 1 to 7.

FIG. 2 shows a gas table 1, and two gas stoves 2 and 3 are formed on the upper surface of the gas table 1, and a grill is formed inside the gas table 1 in front of the gas table 1 in front. A grill opening / closing door 4a for taking food into and out of the grill 4 with a seal, ignition fire buttons 5, 6, and 7 for operating each of the furnaces 2 and 3 and the grill 4, respectively. The operation panel 20 for setting the operating states of the furnaces 2 and 3 and the grille 4 is formed.

Each of the furnaces 2 and 3 performs a normal heating operation and has a safety function to stop the combustion when the temperature of the cooked object rises above a certain temperature. For this purpose, the furnace rotors of each of the furnaces 2 and 3 (2a, 3a) The central part is equipped with temperature sensors (2b, 3b) incorporating thermistors for detecting the temperature of cooking vessels such as pots, and according to the detection temperature of the temperature sensors (2b, 3b) Safety is secured by 30).

The flame barriers 2c and 3c are formed around the temperature sensors 2b and 3b so as not to affect the detection temperature of the temperature sensors 2b and 3b by the flames of the respective furnace burners 2a and 3a.

Moreover, each temperature sensor 2b, 3b is pressurized toward the upper side of the gas table 1 by the spring which is not shown in figure, and a detection part is made to contact | contact closely by elastic contact with a cooking vessel etc.

The grill burner 4b, which is formed inside each of the furnaces 2a and 3a and the grill opening / closing door 4a and which is disposed up and down with respect to the food, is provided with a fuel gas supply hole not shown in FIG. Fuel supply pipes 8a, 8b, 8c branched from the gas pipe 8 to be connected to the gas pipe 8 are connected.

Each burner (2a, 3a, 4a) is provided with ignition electrodes (2d, 3d, 4d) to discharge sparks for ignition, and thermocouples (2e, 3e, 4e) for sensing the heat of combustion to generate electromotive force. have.

Each fuel supply pipe 8a, 8b, 8c is provided with valve mechanisms 11, 12, 13 which are integrally formed to block the fuel gas and control the amount of gas.

As the valve function portion constituting the valve mechanisms 11, 12, 13, respectively, the fuel control valves 11a, 12a, 13a, the main valves 11b, 12b, 13b, and the solenoid safety valves are directed from the downstream side to the upstream side. 11c, 12c, 13c).

Each fuel control valve 11a, 12a, 13a controls the amount of fuel supply to each burner by varying the valve opening degree by the gas amount control levers 5a, 6a, 7a formed in front of the gas table 1.

The main valves 11b, 12b and 13b are opened and closed in accordance with the operation of the ignition fire buttons 5, 6 and 7 formed on the front of the gas table 1, and the ignition fire buttons 5, 6 and 7 are pressed. It has a cam mechanism that alters the open and closed states by operation.

The electromagnetic safety valves 11c, 12c, and 13c are opened and closed in connection with the opening and closing operations of the respective main valves 11b, 12b, and 13b. That is, when the main valves 11b, 12b, and 13b are closed, they remain closed, and when the main valves 11b, 12b, and 13b are changed from the closed state to the open state, the ignition fire buttons (5, 6, 7). If the ignition and pressing operation of) is continued, the open state is maintained, and the pressing operation is released (stopped), and the main mechanism (11b, 12b, 13b) is opened in the valve opening position by the cam mechanism. If there is a current, it is kept open only when a certain amount of current from the thermocouples (2e, 3e, 4e) is energized in the coil installed separately.

In addition, the valve mechanisms 11, 12, and 13 are operated by pressing the ignition fire buttons 5, 6, and 7 when the main valves 11b, 12b, and 13b are changed from the closed state to the open state. Ignition switches 11d, 12d, and 13d are formed to close the contacts only when there is.

In addition, each ignition fire button 5, 6, 7 has a valve flame position detection signal switch 11e, 12e, 13e in order to detect a valve opening position in which each main valve 11b, 12b, 13b is opened. Is provided.

In the gas table 1 having the above configuration, each burr is controlled by the control circuit 30 formed in the gas table 1.

The control circuit 30 is formed around the microcomputer, and as shown in FIG. 3, the control circuit 30 includes the functional parts of the furnace control units 31 and 32 and the grill control unit 33 corresponding to each burner.

Each of the furnace control units 31 and 32 discharges sparks to the ignition electrodes 2d and 3d when the ignition switches 11d and 12d interlocked with the ignition fire buttons 5 and 6 close the contacts, and thus each of the furnace burners 2a. Combustion is started at 3a).

In addition, when the goro rotors 2a and 3a are in combustion, the coils of the electromagnetic safety valves 11c and 12c are energized by the output from the thermocouples 2e and 3e, and the valve body is sucked to maintain the open state. . When each goro burner (2a, 3a) is turned off by the soup of the cooked material, and the output of the thermocouples (2e, 3e) falls, the energizing current to the solenoid safety valves (11c, 12c) drops and the valve body can be sucked. In the misfire detection state, the electromagnetic safety valves 11c and 12c are closed and the supply of fuel gas is stopped.

During combustion, the automatic stop control is also performed to prevent overheating by monitoring the temperature of the cooked product based on the detection temperature of cooking vessels such as pots by the temperature sensors 2b and 3b.

As a control for preventing overheating, a low cut operation for stopping cooking of fuel when the temperature of the cooked food is about 130 ° or higher to prevent sticking of cooked foods, and limiting temperature for cooking such as frying. There are two kinds of high cut operation with the height up to about 250 °. In this embodiment, the operation mode is switched by operating the switching switches 21b and 21c formed on the operation panel 20, and the ignition fire button according to the operation mode switching. The green LEDs 21b and 22c and the red LEDs 23b and 23c formed close to (5, 6) indicate the respective modes of the low cut operation and the high cut operation.

In this case, in order to perform safer operation, when the operation is started and the limit temperature is low, the low cut operation mode is pressed, and when the selector switch 21b or 21c is pressed, the operation mode is changed to become a high cut operation. When it detects, the electricity supply to the electromagnetic safety valves 11c and 12c is stopped and fuel supply is stopped.

In this case, since only the solenoid safety valves 11c and 12c are closed while the ignition fire extinguishing buttons 5 and 6 are kept in the open state, the following will be described later. The buzzer 34 is sounded and the meaning is notified to the user to prompt the closing operation of the main valves 11b and 12b by pressing the ignition fire buttons 5 and 6.

This notification may be changed to the blinking operation of each of the LEDs 22b, 22c, 23b, and 23c that are turned on when the automatic stop control is performed.

In the control of the grill 4 by the grill control unit 33, as in the case of the goro burners 2a and 3a, safety control is performed by detecting the misfire or the like by the thermocouple 4e with respect to the grill burner 4b. For overheating, safety is ensured by limiting the heating time and not by temperature detection.

Therefore, the grill control part 33 is provided with the timer part 33a.

When the ignition press operation of the ignition fire button 7 is performed, the timer burner 4a is ignited, and when the temperature detected by the thermocouple 4e becomes more than a predetermined temperature, ignition is detected. The operation is started, and normally, after 8 minutes, the electronic safety valve 13c is automatically closed to stop the supply of fuel gas.

In addition, the timer unit 33a displays the operation time in two-digit Arabic numerals by increasing and decreasing timer setting keys 24a and 24b and seven sections on the operation panel 20 to set the operation time. The time display section 25 is provided, and any increase or decrease time can be set as the operation time within 15 minutes.

In this case, when the ignition pressing operation of the ignition button 7 is performed and the signal switch 13e closes the contact, 8 minutes are set. Then, when the operation of pressing the increasing timer setting key 24a is pressed, the set time is 9 minutes. After that, each time the operation of pressing the timer setting key 24a is pressed once, the setting time is increased by one minute, and a maximum of 15 minutes can be set. When the timer setting key 24b for reduction is pressed, the setting time is decreased by one minute.

In the time display section 25, the remaining time is displayed in minutes during the operation of the timer 33a, and in the case of 30 seconds or less, the time is displayed in seconds.

Since the operation of the timer unit 33a as described above is started after the ignition detection, the timer unit 33a does not operate when the ignition fails.

Therefore, although the grill burner 4b is not burning, only the timer unit 33a is operated, and even if there is a ringing of the buzzer 34 at the end of the timer, the cooking does not occur at all and the user is not confused.

In addition, when the grill burner 4b is not burning, the display of the time display section 25 does not display the remaining time (the display does not change) so that the user does not misjudge that the grill burner 4b is burning. do.

In this embodiment, the buzzer 34 is provided as a notification means for notifying that the end of heating by the grill burner 4b is near, so that the operation time of the timer 33a can be easily extended.

The buzzer 34 is notified by the timer unit 33a 30 seconds before the fire extinguishing operation of the grill burner 4b, so that the user hears the alarm sound by the buzzer 34 and the timer setting key ( By operating 24, the use time of the grill burner 4b can be extended.

Therefore, when the grill burner 4b is continuously used, it is forgotten and the grill burner 4b is not extinguished.

The buzzer 34 is notified at the end of the operation of the timer unit 33a and after one minute has elapsed until the valve closing operation (extinguishing operation) of the main valve 13b is performed by the ignition fire button 7 even after the operation is finished. Each time, the user is notified repeatedly, and the user is urged to perform the above operation (valve closing operation of the main valve 13b).

Further, in the grill control unit 33, an ignition lamp 26 for displaying the ignition of the grill burner 4b is formed close to the ignition fire button 7.

The ignition lamp 26 is turned on when the temperature detected by the thermocouple 4e formed in proximity to the grill burner 4b becomes above a predetermined temperature, and turns off as a misfire detection state when the detection temperature is lowered.

In the grill control unit 33, the valve closing operation of the main valve 13b by the ignition fire button 7 is not performed, and the electronic safety valve 13c is detected by misfire detection even though the signal switch 13e is in the closed state. ) Is closed, the buzzer 34 sounds to notify the user.

This notification may be made to change the ignition lamp 26 to a flashing operation.

In addition, the locking lever 9 formed on the front of the gas table 1 locks the ignition fire buttons 5, 6, and 7 in order to prevent the ignition operation from being inadvertently ignited.

Next, the operation of the grille 4 in the gas table 1 of the present embodiment having the above configuration will be described with reference to FIG.

At time t1, when the user operates and presses the ignition fire button 7, the main valve 13b is opened, and the electronic safety valve 13c is opened to supply fuel gas to the grill burner 4b. do.

At this time, the signal switch 13e and the ignition switch 13d close the contacts, and the grill controller 33 responds to the closing operation of the signal switch 13e, and the time display section 25 shows a number representing 8 minutes. In parallel, spark discharge is performed at the ignition electrode 4d by a high voltage generation circuit (not shown).

In this embodiment, the initial setting of the cooking timer is set to 8 minutes. This is because the grill cooking time (fish dish, etc.) is usually 7 to 9 minutes, and it is convenient because the setting of the timer does not need to be largely changed every time the grill 4 is used.

In the grill burner 4b, the supplied fuel gas is ignited by ignition, whereby the thermocouple 4e is heated.

At the time t2, when the temperature of the thermocouple 4e sufficiently rises, it is in the ignition detection state on the basis of the output of the thermocouple 4e, so that the timer unit 33a starts operation and at the same time, the ignition lamp 26 Ignition is indicated and the electronic safety valve 13c is adsorbed and kept open. When the timer unit 33a starts to operate, the dot at the lower right of the number in the time display unit 25 changes from a lit display to a flashing display.

When the user releases the pressing operation of the ignition fire button 7 in response to the indication of the ignition lamp 26, the main valve 13b is kept open by the cam mechanism, and the electronic safety valve 13c is opened. The fuel gas is continuously supplied to the grill burner 4b because it is maintained at.

When the user operates the timer setting keys 24a and 24b as necessary to set the use time of the grill 4 after ignition confirmation of the grill burner 4b, the display time of the time display section 25 changes and the timer ( The operating time of 33a) is set correspondingly. The operation time 'T' of the timer unit 33a is set by the above operation, and the operation end time of the timer unit 33a is set to 'tn' time, for example.

While cooking by the grill 4, the operating time 'T' of the timer portion 33a gradually decreases with the passage of time, and correspondingly, the display time of the time display portion 25 decreases.

When the remaining operation time 'T' of the timer unit 33a passes one minute and the remaining time reaches 30 seconds (time t3), the buzzer 34 is ringed.

In this case, the buzzer 34 is driven by five pulse signals whose pulse width is small as shown in FIG. 5, for example, so that the user can know that the operation end time of the timer unit 33a is near. .

Therefore, the user can check the cooking state of the workpiece, and if the heating time is short and the cooking is insufficient, the user can extend the operation time of the timer unit 33a by operating the increasing timer setting key 24a.

As a result, the operation end time is postponed due to the extension of the operation time, and heating can be continuously performed until the postponed time after the use of the grill 4 is started.

Therefore, the heating is stopped during cooking, so that there is no failure of the cooking being less in the middle.

When the time tn is reached, the operation time 'T' of the timer unit 33a ends, and the display time of the time display unit 25 becomes 0 minutes, and at the same time, the electronic safety valve 13c is closed to extinguish the grill burner 4b. Is done.

At this time, the buzzer (34) informs that the fire is made.

In this case, the buzzer 34 is driven by five pulse signals having a large pulse width as shown in FIG. 6, resulting in a long time for the buzzer sounding and the valve closing operation of the main valve 13b by the ignition fire button 7. It is appropriate to hasten.

When the valve closing operation is performed with the ignition fire button 7, the open lock of the main valve 13b is released and closed, and at the same time, the signal switch 13e is turned off and the display of the time display section 25 is erased.

As in the above embodiment, unless the grill burner 4b is ignited and the temperature of the thermocouple 4e has risen sufficiently and the time t2 at which the ignition is detected arrives, the timer unit 33a does not start operation. .

That is, when there was a notification by the buzzer 24 at the time (tn), the cooking is always in progress, and only the timer unit 33a operates without burning, and informs the buzzer 34 at the timer end time (tn). There is no case of embarrassing users.

In the above embodiment, the time is set to the timer unit 33a after the ignition operation. However, even when the cooking time is not set in particular, the buzzer 34 is finished 30 seconds before the end of the operation of the timer unit 33a. Since it is necessary to extend the operating time when it is known, there is no case of forgetting and digesting during cooking.

If the operation time setting operation by the timer setting keys 24a and 24b is not performed, the grill burner 4b is automatically extinguished after a certain operation time, for example, 8 minutes after the ignition operation. When the operation time of the remaining time is taken out of the grill (4), and at this time, even if the extinguishing operation of the ignition fire button (7) is forgotten, the electronic safety valve (13c) at the same time as the operation of the timer (33a) ends. The grille 4 is not overheated because it is closed, so it is safe.

In the above embodiment, the ignition lamp 26 is formed to notify the ignition of the grill burner 4b. However, the time display section 25 may be used for ignition display without forming the ignition lamp for the grill 4.

For this purpose, when the ignition operation of the ignition fire button 7 is performed, the time is not displayed by the time display section 25, and when the ignition detection is performed by the thermocouple 4e, it is displayed as the operation time of the timer section 33a. Let's do it.

In the above embodiment, the dot 251 is blinked and displayed as a method of indicating that the timer unit 33a is in operation as shown in FIG. 7 (a), but the present invention is not limited thereto. At the same time as the operation, the display number may be changed from lit to flashing or changed from flashing to lit as shown in Fig. 7 (c).

In the above embodiment, the gas burner in the gas table is shown, but the grill may be a system of burning the gas in which the oil of fuel is vaporized.

Claims (1)

A timer 33a for burning the grill burner 4b for a predetermined time while controlling the operation of fuel supply to the grill burner 4b and ignition, fire extinguishing and combustion of the grill burner, and the rest of the timer 33a. In the control device of the grill 33 having a time display section 25 for displaying a time and a notifying means 34 for notifying the time when the time limit operation of the timer section 33a is finished after the predetermined time has elapsed. And a time operation of the timer unit 33a is initiated by the ignition detection of the grill burner 4b.