JPH0799262B2 - Cooking device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooker for heating foods for cooking.

[0002]

2. Description of the Related Art Conventionally, a plurality of burners (small-burner burner, medium-burner burner, large-burner burner), operation knobs for igniting and extinguishing these burners, and abnormality detection for detecting abnormalities that may occur during burner operation. Means, a gas safety valve that stops the gas supply to the burner if an abnormality is detected during combustion of the burner, a storage means that stores the cause of the abnormality as abnormality information, and an error code that sets the cause of the abnormality in advance. 2. Description of the Related Art There is known a gas stove including one display for displaying and a changeover switch for sequentially switching the cause of abnormality displayed on the display.

[0003]

However, in the above-described conventional gas stove, since the stored cause of abnormality is sequentially displayed each time the changeover switch is operated, the abnormality of the burner which is not currently used, that is, the past Even the cause of the abnormality is displayed, and it is difficult to determine which burner is related to the cause of the abnormality, and it is not possible to immediately detect the cause of the abnormality related to the burner that requires countermeasures and take the countermeasure promptly. . Furthermore, the conventional gas stove has the troublesomeness of operating the changeover switch to check the cause of the abnormality. An object of the present invention is to provide a cooker that is easy to use while easily identifying the heating source related to the abnormality and the cause of the abnormality.

[0004]

[Means for Solving the Problems] In order to solve the above problems,
The present invention has the following configurations. (1) Each heating source has a plurality of heating sources with priorities set in advance, a heating position for operating the heating sources and a stopping position for stopping the heating sources, and switches these positions by manual operation. And an abnormality detecting means for detecting an abnormality that may occur with respect to the operation of each of the heating sources, including the cause of the abnormality, and when the abnormality detecting means detects an abnormality during the operation of the heating source. A safety device for forcibly deactivating the heating source related to the abnormality, a storage means for storing the abnormality cause detected by the abnormality detecting means as abnormality information for each heating source, and an indicator for displaying the abnormality cause,
The operating device related to the heating source that has been deactivated is provided with an erasing unit that erases the abnormal information regarding the heating source when the operating position is returned from the heating position to the stop position, and an abnormal state regarding two or more heating sources is When detected, the cause of abnormality related to the heating source having the highest priority among them is displayed on the display. (2) Each heating source has a plurality of heating sources with preset priorities, a heating position for operating the heating sources and a stop position for stopping the heating sources, and switches these positions by manual operation. The operation unit provided in the, the abnormality notification lamp provided in the vicinity of these operation unit, the abnormality detection means for detecting the abnormality that may occur with respect to the operation of each of the above heating sources, including the cause of the abnormality, by the abnormality detection means When an abnormality is detected during the operation of the heating source, a safety device for forcibly stopping the operation of the heating source related to the abnormality and the cause of the abnormality detected by the abnormality detecting means are stored as abnormality information for each heating source. When the storage unit, the display for displaying the cause of the abnormality, and the operation unit related to the heating source that has been deactivated are returned from the heating position to the stop position, the abnormality information regarding the heating source is erased. When an abnormal state relating to two or more heating sources is detected, the cause of the abnormality relating to the heating source having the highest priority among them is displayed on the display device and the corresponding heating source is dealt with. The abnormality notification lamp is turned on or blinks.

[0005]

[Operation and effect of the invention]

[Claim 1] (Operation) When the cause of abnormality is displayed on the display unit, the user selects the heating source with the highest priority in the heating source group in which the operating unit is in the heating position and is not in the heating state. It is easy to see that a related abnormality has occurred and what is displayed on the display is the cause of the abnormality. If the operating device related to the heating source is returned to the stop position, the abnormal information related to the heating source disappears,
The following error cause is displayed on the display, the user is in the heating position, and the user has an error related to the heating source with the highest priority in the heating source group that is not in the heating state, and It is easy to see that what is displayed on the display is the cause of the abnormality. (Effect) The user can easily understand the heating source related to the abnormality and the cause of the abnormality, and can promptly take appropriate measures. By returning the operating device relating to the heating source whose cause of abnormality is displayed on the display unit to the stop position, the abnormality information relating to the heating source is erased, and the next cause of abnormality is displayed on the display unit. Therefore, the abnormality information can be switched without performing a complicated switch operation, which is convenient. [Claim 2] An abnormality notification lamp is provided in the vicinity of each operating device, and the abnormality notification lamp corresponding to the abnormality cause relating to the heating source having the highest priority among the stored abnormality causes is lit or blinked. Therefore, it is easy to know which heating source is causing the abnormality displayed on the display.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS. As shown in the figure, the gas table A includes a large burner 11, a standard burner 12, and a grill burner 13 which are heat sources.
And the operation knob 21 for igniting and extinguishing these burners,
22 and 23 and thermocouples 31, 32 and 3 for detecting an error
3 and the thermistor 34 for detecting the temperature of the bottom of the cooking container,
35 and gas safety valves 41, 42, 43 which are safety devices
And an indicator 5 for displaying the error code or the remaining time of the timer, and a controller 6 for controlling them. still,
In the present embodiment, the display priority of the display 5 is determined in the order of the remaining time display of the grill timer, the error regarding the grill burner 13, the error regarding the standard burner 12, and the error regarding the large burner 11. The display priority is
For example, the error display may be prioritized over the remaining time display of the grill timer.

The large burner 11 (4100 kcal / h) and the standard burner 12 (2300 kcal / h) are arranged on the left and right of the top plate, and the grill burner 13 (19) is provided.
50 kcal / h) is arranged in the grill cabinet 14.

The operating knobs 21, 22, 23 are pushed in when they are pressed (ignition position), and the fire extinguishing switches 210, 2 are turned on.
The electrical contacts of 20, 230 are closed, the gas main valves 211, 221, 231 are mechanically opened, and the contacts of the sparker operating switch (not shown) are closed for a predetermined time. . Moreover, when it is pressed again, it returns to the initial state (fire extinguishing position), and the point extinguishing switches 210, 220, 230
Open the contact of the gas main valve 211 mechanically,
The valves 221 and 231 are closed.

The thermocouples 31, 32, 33 are the large burner 1
1, a standard burner 12 and a grill burner 13 are arranged at appropriate places, and are sensors for detecting combustion flames and generating electromotive force,
An ignition error and a misfire error which will be described later are detected. The thermistors 34 and 35 that detect the temperature of the bottom of the cooking container are arranged in the heat sensitive tubes 341 and 351 that are biased upward in the recesses of the large burner 11 and the standard burner 12.

The gas safety valves 41, 42 and 43 are safety devices and are arranged at the most upstream of the gas supply paths 111, 121 and 131 to the large burner 11, the standard burner 12 and the grill burner 13. Then, the valve is opened by pressing the operation knobs 21, 22, 23, and held open by the electromotive force of the thermocouples 31, 32, 33. When an error is detected, the control device 6 closes the corresponding gas safety valve.

The display 5 includes a 7-segment LED (2
Each error is displayed with an error code described later. The display 5 also serves as a grill timer display.

The control device 6 is composed of an electric circuit equipped with a microcomputer, and has a combustion control unit 61 for controlling combustion of the burner, a safety control unit 62, a storage unit 63, a normal display control unit 64, and an abnormal display control. It consists of a part 65. As shown in FIG. 4, these control units include mode changeover switches 601 and 602 for switching between cooked and pottery modes, a pottery switch 603 for making the pottery mode by double pressing, and a timer setting switch for setting the cooking time of the grill. 604,
Point fire extinguishing switches 210, 220, 230, thermistor 3
4, 35, solenoid valve 605 for switching large fire / small fire, sparker 606, gas safety valves 41, 42, 43, cooked lamps 607, 608, oiled lamps 609, 610, pottery lamps for lighting and notifying the use mode 611, position lamps 612, 613, 614 for notifying an error, a buzzer,
And the indicator 5 is electrically connected.

Next, the operation of the control device 6 in the portion related to the error display in the gas table A will be described with reference to the flowchart of FIG. When the control device 6 detects an error, in step 701, the burner is sorted for each burner and the cause of the error is stored in the storage unit 63 as error information, and the process proceeds to step 702. In step 702, the error information stored in the storage unit 63 is checked, the position lamp near the operation knob for operating the burner related to the highest priority is blinked, and the process proceeds to step 703. Step 7
In 03, it is determined whether or not the grill is used (normal state), and if it is used (YES), step 70
4 and proceeds to step 705 if not used (NO). In step 704, the timer is displayed on the display unit 5, and the process proceeds to step 706. In step 705, among the error information stored in the storage unit 63, the one having the highest priority is blinked and displayed on the display 5 with an error code described later, and the process proceeds to step 706. In step 706, it is determined whether or not any operation knob has been returned to the fire extinguishing side. If it has been returned (YES), the process proceeds to step 707, and if it has not been returned (NO), the process returns to step 702. Step 70
In step 7, the error information regarding the returned operation knob is erased from the storage unit 63, and the process returns to step 702.

The type of error and its error code will now be described. [Ignition error: error code "11"] The electromotive force of the thermocouples 31, 32, 33 is below a certain level 30 seconds after the electrical contacts of the fire extinguishing switches 210, 220, 230 are closed. In that case, an ignition error occurs. [Spark error: error code "11"] In the grill, when the sparker operating switch is continuously closed for a predetermined time, the same error code "11" is given as a spark error. [Misfire error: error code "12"] Large burner 11,
While using the standard burner 12 and grill burner 13, thermocouple 3
If the electromotive force of Nos. 1, 32, and 33 is continuously lower than a certain level for a predetermined time, a misfire error occurs. [Thermistor initial check error: error code "3
2, 31 "] When the operation knobs 21 and 22 are in the fire extinguishing position (the point extinguishing switches 210 and 220 are open), if the output of the thermistors 34 and 35 exceeds the initial check level, the error code" 32, 31 "is given as the thermistor initial check error. [Thermistor disconnection error: error code" 32, 3 "
1 "] point The fire extinguishing switches 210 and 220 are in the open state and measured after a lapse of a predetermined time. "Thermistor initial check error given". [Continuous use error: error code "00"] When the stove (large burner 11, standard burner 12) is continuously used for a predetermined time, it is regarded as a continuous use error. SV error: error code "71"] Gas safety valve 4
If the logic of the transistors for driving 1, 42, 43 and the logic of the point fire extinguishing switches 210, 220, 230 do not match, an SV error is generated.

The advantages of the gas table A of this embodiment will be described below. (A) The user can easily know which burner the error code displayed on the display 5 is from the blinking position lamp. If two or more errors occur, return the operation knob near the blinking position lamp to the fire extinguishing position to clear the error information for that burner, and the error code for the burner with the next highest priority will be displayed. It is displayed with the blinking lamp. Therefore, all error causes can be confirmed and error information can be erased without performing a complicated switch operation, which is convenient. (B) When an error related to the large burner 11 or the standard burner 12 occurs while the remaining time of the grill timer is being displayed on the display unit 5 by using the grill, the position error flashes to confirm the burner in error. You can also see the error code after using the grill.

[Brief description of drawings]

FIG. 1 is an overall view of a gas table according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of the gas table.

FIG. 3 is a gas circuit diagram of the gas table.

FIG. 4 is an explanatory diagram around the control device of the gas table.

FIG. 5 is a flowchart showing the operation of the control device of the part related to the error code display.

[Explanation of symbols]

A gas table (cooker) 5 indicator 6 control device (storage means, erasing means, abnormality detection means) 11 large burner (heating source) 12 standard burner (heating source) 13 grill burner (heating source) 21, 22, 23 operation Knob (operator) 41, 42, 43 Gas safety valve (safety device) 612, 613, 614 Position lamp (abnormality notification lamp)

Claims (2)

[Claims] 1. A heating system having a plurality of heating sources with preset priorities, a heating position for operating the heating sources and a stopping position for stopping the heating sources, and switching these positions by a manual operation. An operating unit provided for each heat source, an abnormality detecting unit that detects an abnormality that may occur with respect to the operation of each of the heating sources, including an abnormality cause, and an abnormality is detected during the operation of the heating source by the abnormality detecting unit. In the event of a failure, a safety device that forcibly stops the heating source related to the abnormality, a storage unit that stores the abnormality cause detected by the abnormality detection unit as abnormality information for each heating source, and an indicator that displays the abnormality cause. And an erasing means for erasing the abnormal information on the heating source when the operating device related to the stopped heating source is returned from the heating position to the stop position. When an abnormal state is detected, the cooking device that displays the cause of abnormality related to the heating source having the highest priority among them on the display. 2. A heating source having a plurality of heating sources with preset priorities, a heating position for operating the heating sources and a stopping position for stopping the heating sources, and switching these positions by a manual operation. An operating unit provided for each heat source, an abnormality notification lamp provided in the vicinity of these operating units, an abnormality detecting means for detecting an abnormality that may occur with respect to the operation of each of the above heating sources, including the cause of the abnormality, and the abnormality detecting unit. When an abnormality is detected during operation of the heating source by the means, a safety device forcibly stopping the operation of the heating source related to the abnormality, and the cause of the abnormality detected by the abnormality detection means as abnormality information for each heating source. When the storage means for storing, the display for displaying the cause of the abnormality, and the operation device related to the heating source that has been deactivated are returned from the heating position to the stop position, the difference regarding the heating source is changed. And an erasing means for erasing information, and when an abnormal state related to two or more heating sources is detected, the cause of the abnormality related to the heating source with the highest priority among them is displayed on the display unit and the heating source Cooker that lights or blinks the abnormality notification lamp corresponding to.