JPH04187912A - Multi purpose cooking utensil - Google Patents

Abstract

PURPOSE:To be able to conduct cooking in the grill at any time with the residual time being confirmed and prevent a failure in cooling by displaying on the display device the residual time in a grill timer with priority to the display of an abnormality in the function of the control section of the heater. CONSTITUTION:When a error has been made in the cooking utensil, the microcomputer 41 in a controller 40 judges the generation of the error. It is judged whether or not the spot where the error occurred is outside the grill. If it is in the grill, error display is flickered on a display device L4. Next, it is judged whether or not the grill and the portable heater were used simultaneously. If only the portable heater or heaters (both heaters 1 and 2 or either one is used) are used, the error display is flickered on the display device L4. And, when the grill 3 and portable heaters are used simultaneously, the display device L4 continues to display the residual time of grill timer and the display of error in the portable heaters is not made, and only the other treatments of error (sounding of a buzzer, flickering the mode display LED) are made. By the way when only the portable heaters are used and error is displayed on the display device L4, the display on the display device L4 is switched to the display of the residual time of the grill timer, if an ignition and fire extinguishing button 31 is pressed down and the use of the grill is started.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a multipurpose cooking appliance such as a stove with a built-in grill.

[Prior Art] Cooking appliances that display the remaining time of a grill timer on a display, or that display an abnormality detection message on a display when an abnormality occurs in a heat generating device, etc., are conventionally known.

[Problem to be solved by the invention] In a multi-purpose cooker equipped with both a grill and a heat generating device, in order to reduce the number of parts and reduce costs, it is conceivable to display each of the above on a common display, but simply If the grill and heat generating device are used together, if an abnormality occurs in the heat generating device when both the grill and the heat generating device are used, the display will change to a message indicating that the heat generating device is abnormal, which may confuse the user. A problem occurs.

An object of the present invention is to provide a multipurpose cooking appliance that is easy to use and that does not cause confusion with the user.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a grill that performs a heating operation for a set time of a timer, a heat generating device, and a one-way operation of a heat generating section provided in the grill and the heat generating device. and security measures that check the functionality of the control unit that controls the.

A display device is provided that serves both to display an abnormality detected by the maintenance means and to display the remaining time of the timer, and when the maintenance means indicates a malfunction in the control section of the heat generating device, the priority means detects the abnormality. The technical means is to give priority to displaying the remaining time of a grill timer on the display.

[Operation] When only the heat generating device is used, when the maintenance means detects a malfunction in the control section of the heat generating device, an indication of abnormality detection is displayed on the display.

When both the grill and the heat generating device are used, the remaining time of the grill timer is displayed on the display with priority over the display indicating that a malfunction in the control unit of the heat generating device has been detected by the maintenance means.

[Effects of the Invention] In contrast to the display of a malfunction in the control section of the heat generating device, the remaining time of the grill timer is displayed on the display with priority.

Therefore, you can grill and cook while checking the remaining time at any time, and cooking will not fail.

The user is not confused because the display does not suddenly change from the remaining time on the timer to an abnormality detection display.

[Example] The present invention will be described based on an example shown in FIGS. 1 to 4.

Fig. 2 shows a gas stove A which is a cooking appliance having a temperature sensor.On the top surface of this gas stove A, two gas stoves 1 (left) and 2 (right) are provided as heat generating devices. On the front side of A, there is a gas staple A.
A grill opening/closing door 30 for taking food in and out of the grill 3, which has an inner grill box inside, and each gas stove 1.
On/off buttons 11, 21, and 31 (includes a heart cam type button-shu-butsu mechanism (not shown) for operating the grills 1, 2 and 3, respectively), and each gas stove 1.
An operation panel 4 is provided for setting a control method for the grill 2 and the grill 3.

The gas stove 1.2 performs a normal heating operation, and also has a control device 40 that adjusts the temperature or automatically extinguishes the fire when the temperature of the bottom of the pot, which is a cooking container, reaches a certain temperature or higher, which will be described later. 1.2 stove burner 12.
A temperature sensor 13.23 having built-in thermistors THI and TH2 is provided at the center of the temperature sensor 22. Further, the temperature sensor 13.23 is biased upwardly from the gas staple A by a spring (not shown), and the detection portion is biased upward from the gas staple A.
It is designed to come into close contact with other people.

The left side of Fig. 3 shows the gas circuit of gas stove 1 (gas stove 2 is the same as gas stove 1), TCl is a thermocouple, sp is sparker 1, g1 is electrode, S1 is electromagnetic safety valve, MVI is a switching solenoid valve for temperature adjustment, 201 is an orifice, 202 is a throttle, and 203 is a main valve. Also, the right side of the figure is the gas circuit of the grill 3, where Te3 is a thermocouple, g3 is an electrode, 32 is a grill burner, and 30
2 is a throttle, 303 is a main valve, and SV3 is an electromagnetic safety valve.

40 is a control device including a microcomputer 41, and as shown in FIG.
SW input circuit 404, double digit, ED drive circuit 405, mode display LED drive circuit 406, SV drive circuit 407,
It consists of an MV drive circuit 408, a sparker drive circuit 409, and a buzzer drive circuit 410.

On the operation panel 4, Ll-1 and Ll-2 are boiling mode LEDs (green) corresponding to gas stove 1.2 -L2-1
, L2-2 is the fried food mode LED (orange), L3-1, L3
-2 (red) is the high temperature mode LED, SWI, SW2 is a self-resetting pushbutton switch to switch the mode of stove 1.2, L4 is a two-digit LED indicator that displays the remaining time of the grill timer, SW3 is the grill timer addition switch, SW4 is the grill timer subtraction switch, SW5, SW
6 is a self-resetting push button switch for switching the mode of the stove 1.2 from the frying mode to the high temperature mode.

Next, the details of the operation of gas staple A will be described (1)
About the basic operation of the Krill 3 When the ignition/extinguishing button 31 is pressed, the main valve 303 opens, and in conjunction with this, the control microswitch MSI-3 and the sparker are activated.

-8P operating microswitch MS2-3 is closed.

Since the valve of SV3 remains open while the ignition/extinguishing button 31 is pressed, gas flows to the grill burner 32, causing electricity &g3
sparks and the burner 32 ignites.

Thereafter, the thermocouple TC3 is heated by the flame of the burner 32, and the generated thermoelectromotive force is at the ignition level (2.5V±
0.5 mV) or more and inputs the result to the microcomputer 41. When the microcomputer 41 detects the level above the famous dog level, the microcomputer 41 outputs a signal to keep the valve open by supplying an adsorption current to the SV3, and displays '8.' on the display L4. “ lights up to confirm ignition, and at the same time starts operating the grill timer and blinking °°.

After the ignition is confirmed, when the user releases the ignition/extinguishing button 31 and releases the pressure, the MS2-3 opens and stops the operation of the sparker SP.

When the ignition level is not detected, the microcomputer 41
Since a signal to open the valve 3 is not sent to the SV drive circuit 407, the SV3 is closed when the ignition/extinguishing button 31 is released, and combustion cannot be maintained.

Misfire detection, etc. When the thermal electromotive force of Te3 is detected to be less than the above ignition level for 30 consecutive seconds after ignition, it is regarded as a misfire, and the microcomputer 41 sends a signal to close the SV3 to the SV drive circuit 4.
07, and the gas supply is stopped (the remaining time display and timer operation continue until the SV3 valve is closed). Also,
When extinguishing a fire, press the ignition/extinguishing button 31 to close the main valve 303, open the MSI-3, and send a signal to the microcomputer 41 to close the SV3 to the Sv drive circuit 407 to turn off the burner. Stop the gas supply to 32j\.

The display on the time-up notice display L4 changes from "8→7→6→...→2-1", and when the remaining time of the grill timer reaches 30 seconds, "-1→
30 → 29...°” and the seconds display changes, and the notification buzzer sounds.

When the time-up “'...→1→O” occurs, the buzzer sounds and a signal to close the SV3 is sent to the SV drive circuit 407.
Send to. Thereafter, a buzzer sounds every minute to call attention until the MSI-3 is opened and the main valve 303 is closed by pressing the ignition/extinguishing button 31.

Regarding the increase/decrease of the grill timer, each time you press SW3
4 → 15'' and increments by 1 minute (up to 15 minutes, but if pressed when seconds are displayed, minutes will be displayed as 15'').

Each time SW4 is pressed, 1 minute is subtracted (1 minute difference) as follows: 8→7-→...-2→l. Note that if the display is 1 minute or seconds, pressing will not be accepted.

Further, SW3.4 can be pressed individually and consecutively, but if they are pressed simultaneously, priority is given to the operation of SW4.

(2) About stove 1 (stove 2) ■Basic operation When the ignition point extinguishing button 11 is pressed by hand, the main valve opens and the control micro switch MSI
Micro switch M for operating -1 and Sparker-8P
S2-1 is closed. When the closing signal of MS2-1 is input to the microcomputer 41, the microcomputer 41 activates the Sv drive circuit 40.
7 sends a signal to cause an adsorption current to flow through SVI, and
The valve I is kept open, gas flows into the burner 12, and the electrode g1
sparks and burner 12 ignites.

When the user releases the ignition confirmation point extinguishing button 11, the MS2-1 opens and stops the operation of the sparker-8P.

Thereafter, the thermocouple TCI is heated by the flame of the burner 12, and the thermoelectromotive force generated is at the ignition level (3.5V=
A determination is made as to whether or not 0mV>1, and the process is input to the microcomputer 41. At this point, when 30 seconds have elapsed from the closing of MSI-1, if the thermoelectromotive force is equal to or higher than the ignition level, the microcomputer 41 sends a chanting current to Svl to maintain the valve open. The gas is continuously sent to the drive circuit 407, and if the current is below the ignition level, the microcomputer 41 sends a signal to stop the adsorption current to the SVI and close the valve, thereby stopping the gas supply to the burner 12.

If the thermoelectromotive force is below the ignition level for 30 consecutive seconds after the above 30 seconds have elapsed after ignition, such as misfire detection, it is assumed that a misfire has occurred, and the microcomputer 41 sends a signal to close the SVI to the SV drive circuit 4.
Send on 07.

When extinguishing a fire, press the ignition/extinguishing button 11 to close the main valve 203 and open the MSI-1, which sends a signal to the S■ drive circuit li'8407 to close the microcomputer 41 or SVI. Then, the gas supply to the burner 12/\ is stopped.

Prevention of forgetting to turn off If the closed state of MSI-1 reaches 2 o'clock open continuously from the time of ignition, it is assumed that the MSI-1 has forgotten to turn off, and the microcomputer 41 sets the SV
A signal to open the valve t is sent to the SV drive circuit 407 to stop the gas supply and automatically extinguish the fire.

■Mode switching point Press the extinguish button 11 to ignite the MSI.
When the -1 closing signal is input to the microcomputer 41, the boiling mode is set and only Ll-1 lights up. However, the initial 30 seconds are controlled by the control temperature (250°C) of the frying moat. This is 140 in boiling mode at the initial stage of ignition.
Assuming that the fire is automatically extinguished at °C, if the fire is immediately re-ignited after being used in the deep-frying mode, such as when cooking tempura, the temperature sensor 13
This is because the fire is already at a high temperature of 140°C or higher, so it is quickly extinguished, making it difficult to use.

If no SWI operation (press and release) is performed within 30 seconds, the mode will switch to boil mode after 30 seconds. If the SWI operation is performed, the boiling mode is maintained and the L
Only l-2 lights up.

When SW5 is operated, it becomes a standby mode for 3 seconds.

If SW5 is operated during standby mode, the mode switches to high temperature mode and only Ll-3 lights up.

When the SWI operation is performed in a high temperature state, the mode returns to boil mode.

■Control details in each mode The boil mode is used for dishes that mainly use water, such as stews and simmered dishes, and is used for cooking at 140 degrees when the food is about to burn.
C (130°C for stove 2) when temperature sensor 13
Automatically extinguishes burner 12 when detected continuously for seconds (SVI
After closing the valve and automatically extinguishing the fire, a buzzer sounds (1t%) every minute to prevent burning.

In addition, the reason why we set a time lag of 10 seconds in boiling mode is because
This is to prevent the burner 12 from being extinguished even if the sensor 13 detects a temperature rise due to flame fanning when the pot N is lifted and shaken.

However, even at -250°C (240°C for stove 2)
When this happens, the fire will be automatically extinguished immediately.

Fried food mode is used for dishes that mainly use oil, such as tempura and fried food, and is set at a safe temperature of 250°C before the oil catches fire.
When the temperature sensor 13 detects the temperature (240°C for the stove 2), the burner 12 is automatically extinguished, thereby preventing oil fires.

The high-temperature cooking mode is used for dishes that require high temperatures, such as fried dishes and grilled dishes, and when the temperature sensor 13 detects 274°C, the MVI is closed and the gas amount is reduced to the amount that passes through the orifice 201. When it detects °C, the MVI opens the valve, and this temperature adjustment solves the problem of the temperature rising too quickly and being unable to continue cooking at high temperatures. However, when 290'C is detected, the burner 12 is automatically extinguished to prevent overheating of each part of the cooker.

In this embodiment, the burner 12 has a medium diameter and the burner 22 has a large diameter, so the detected temperature of the burner 12 is set to the boiling mode,
In the fried food mode, the temperature was increased by 10°C, and the operation of the temperature sensor 13 of the burner 12 was delayed so that the degree of burning when the temperature sensor 3 was activated was the same as that of the burner 22. This means that even if the temperature of the food itself in the cooking container is the same,
This is because, due to the size of the burner diameter, the temperature distribution at the bottom of the pot of a burner with a small diameter tends to be relatively high near the center where the sensor contacts, and the sensor 13 tends to detect the high temperature.

Also, no matter what mode the stove 2.3 is in, MSI-
1. When the ignition state reaches two consecutive hours after MSI-2 is closed, the control device 40 sends a signal to close SVI or SV2 from the microcomputer 41 to the SV drive circuit 407, and turns on the burner 12.22. Each fire extinguishes automatically.

(3) Regarding error handling MS2-1. If either MS2-2 or MS2-3 is closed for 15 seconds or more and Sparker 8P operates continuously, a spark error will occur and the error display "11P" will be displayed on the display L.
4, and the microcomputer 41 sends out a signal to stop the sparker-8P.

If the resistance of thermistors THI and TH2 exceeds 1783 Ω for 15 consecutive seconds after 30 seconds after the ignition operation, a disconnection error of thermistors THI and H2 will occur.
The error display "31", "32°" is displayed on the display L4.

MSl-1 with the power plug inserted into the outlet
, MSI-2, or MSI-3 is closed, a micro-sinch error will occur and the error display “01” will be displayed.
° is displayed on the display L4.

30 seconds after the ignition operation, TCI, 2 becomes 3.
．． If the level is less than 5V ± 0.5mV and there is a mistake, or if the level is below the above level for 30 consecutive seconds after the above 30 seconds have elapsed and a misfire occurs, it will be a TC error and the error display “12゛” will be displayed. Displayed on device L4. Also, T
If e3 is below the above level for 30 consecutive seconds after ignition and misfire occurs, a similar display will be displayed.

When the microcomputer 41 detects the above error, the display L4
This is done by flashing the error display, sounding the buzzer, and closing only the SV of the corresponding part of stove 1, 2 and grill 3 within 3 seconds from the occurrence of the error. That is, the SVs of other stoves, etc. that are being used at the same time are kept open.

Thereafter, until the corresponding ignition/extinguishing button is pushed back and the control microswitches MSI-1 to 3 are closed,
The above flashing display continues and the buzzer sounds every minute.

In addition, when an error occurs on grill 3, display L4 changes from a timer display to an error display (blinking), and when an error occurs on stoves L and 2, in addition to the error display on display L4, the The mode display LED will also flash when the mode was on.

Further, if an error occurs twice in succession, the previous error display is continued, and if errors occur simultaneously, the display is given priority in the order of stove 1, stove 2, and grill 3.

Note that the grill timer display is given priority over the error display for stoves 1 and 2.

Hereinafter, the process will be explained in detail according to the flowchart shown in FIG.

In step (hereinafter omitted) Sl, the microcomputer 41 determines that an error has occurred.

If yes in Sl, proceed to S2; if no, proceed to S4.

In S2, it is determined that the location of the error occurrence is somewhere other than the grill, and if no (the grill), an error display is flashed on the display L4. If yes, proceed to S3 at 983, determine whether the grill stove is used at the same time, and then proceed to n.

When only the cooking stove is used (using cooking stoves 1 and 2 or one of them), an error display will blink on the display L4. yes
When grill 3 and stove are used simultaneously in s, display L4 continues to display the remaining time of the grill timer, and other error processing (buzzer, flashing of the remote display LED) is performed without displaying an error display for the stove. 〉 only.

Incidentally, even when an error occurs when only the stove is being used and an error is displayed on the display L4, the use of the grill 3 is also determined in S3. That is, if you press the ignition/extinguishing button 31 of the grill 3 to start using the grill 3, the display L will turn on.
4 switches to displaying the remaining time of the grill timer.

Next, the effects of gas staple A will be described.

(A) While grill 3 is in use, the error display for stoves 1 and 2 is not displayed on display L4, and the remaining time on the grill timer is displayed with priority, so the cook can check the remaining time. You can cook on the grill while cooking without making mistakes. In this case, other error processing is performed by blinking the buzzer and the remote display LED, so the cook can understand that an error has occurred in the stove 1.2.

(b) While the grill 3 is in use, the remaining time on the timer on the display L4 does not suddenly display an error message (numbers), so the cook is not confused.

(c) Even if error processing is performed, parts unrelated to the error can be used, so it is easy to use.

In this embodiment, the grill and the heat generating device are described as a caster grill and a gas stove, but the present invention is not limited to this. For example, the grill and the heat generating device may be heated using electricity or oil as fuel.

[Brief explanation of the drawing]

Fig. 1 is a flowchart for explaining the priority display of two-digit LEDs in a cast table which is an embodiment of the present invention, Fig. 2 is a perspective view of the gas staple, and Fig. 3 is a gas circuit diagram of the gas staple. , FIG. 4 is a block diagram of the control device of the castable. In the diagram 1.2...Cast stove (heat generating device) 3...Krill 12.22...Stove burner (heat generating part) 40...
・Control device (control unit) 41... microcomputer (maintenance means,
Priority method) L4... Display A. Castable multi-purpose cooking equipment)

Claims (1)

[Scope of Claims] 1) A maintenance means that verifies the functions of a grill that performs a heating operation, a heat generating device, and a control unit that controls the operation of a heat generating unit provided in the grill and the heat generating device, according to a set time of a timer; A display device is provided that serves both to display an abnormality detected by the maintenance means and to display the remaining time of the timer, and when the maintenance means indicates a malfunction in the control section of the heat generating device, the priority means detects the abnormality. A multi-purpose cooking appliance characterized in that the remaining time of a grill timer is displayed with priority on the display.