JPS59200125A - Heating device - Google Patents

Abstract

PURPOSE:To realize a menu displaying device having a quick response and improved using convenience, by providing a menu displaying means including a menu displaying screen wherein a plurality of cooking menus is classified by a category. CONSTITUTION:A user depresses a selected one of category keys 14 provided as a category selection means, a control section 21 displays a predtermined menu picture on a menu displaying device. A multiple-layer liquid crystal is used for a menu displaying device 22, whereas a numeral displaying device 23 is also made of a liquid crystal. Then the user selects a menu and depresses a cooking-start switch, a control section 21 starts feeding a power to a magnetron 26 via a driver 25. Thus, the cooking of foodstuff 28 to be heated is started in a heating compartment 27. A humidity sensor or a gase sensor 32 provided in an exhuast guide 31 monitors the heating process of foodstuff 28, while the control section 21 judges the completion of cooking operation. Thus, the power supply to the magnetron 26 is automatcially interrupted, informing the user the end of the cooking operation.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a heating device, particularly for cooking menus.
Select any one efficiently.

The present invention relates to a heating device capable of automatic cooking.

Conventional configuration and its problems Conventionally, in heating devices capable of automatic cooking (ha.

Meni has been divided into smaller parts in order to cook without mistakes. That is, instead of reheating with a single key,
"Rice and soup" and "simmered and boiled dishes" for each menu
By subdividing the dish into ``curry nchu'' and adjusting the heat slightly for each item, the quality of the dish can be improved.

However, such an approach inevitably results in a large number of menu keys on the operation panel. This trend is especially noticeable in recent years, when combined ovens that combine an oven, microwave, and grill are becoming more and more popular.

As one solution to such technical problems, Japanese Patent Application Laid-Open No. 57-1
The heating device described in Japanese Patent No. 27725 has been put into practical use. FIG. 1 shows the construction of such a heating device. This is equipped with a lean cooking menu display device that allows you to easily select and set any one of a large number of cooking menus. A cooking menu display window 2 is provided on an operation panel 1, and a leaf-type cooking menu display device 3 is disposed therein. A part of the display card 4 is then displayed on the display window 2.

Now, the user first sets the lever switch 5 to one of the cooking, defrosting, and oven categories.

Press start button 6. Then, the control section 7 outputs a predetermined number of pulses to the step motor 8 to rotate the display card 4 corresponding to the set category and make it appear on the display window 2. For example, if you are in cooking mode, a cart will appear as shown. When the user selects the menu to be cooked next using the cooking selection key 9 and presses the start button 6 again, the predetermined menu is selected. For example, if you want to fish, press the key with number 0.0 In this conventional example, the cam 10 and the switch 11 are pressed.
Accordingly, the control unit 7 detects the reference zero point.

Based on this base thread 0 point, a predetermined number of step motor pulses are output to the control section 7 to rotate the menu display device 3.

Therefore, once the control section 7 detects the base thread ○ point using the switch 11 and the cam 10, it outputs a pulse based on this point and rotates the step motor 8 by a predetermined angle. It takes some time to display 4 on the display window 2.

Especially when a card far from the standard zero point is displayed, the user has to wait with frustration for the desired cart to rotate and appear.

Since there are many mechanical parts such as broken step motors, gears, and cams, mechanical fatigue and damage to these parts may cause a failure in which the menu display device 3 does not rotate to a predetermined position. If the menu display device i does not rotate to a predetermined position, an incorrect display card will appear on the display window 2. In other words, the oven menu is displayed even though the cooking mode is selected. In such a case, if the user does not notice this malfunction and presses the cooking selection key 9 believing the changing menu display, the control unit 714 may
It incorrectly assumes that microwaved meat has been selected.
Operate. This is extremely dangerous in combination ovens. A dry oven requires preheating, but dry cooking in a microwave increases the amount of radio wave leakage and significantly shortens the life of the magnetron.There is also a risk of burns to the user due to localized overheating of the heating chamber wall.

In this way, in conventional menu display devices, the control section must first grasp the reference zero point - and the motor rotates to display a predetermined menu display, so the response is slow, and the user is frustrated when the desired menu is not displayed. I had to wait for it to appear. In addition, failure of the drive system was likely to occur, which was accompanied by a danger.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks, and aims to provide a menu display device that provides a quick response, has good operability, has few failures, and is safe even if a failure occurs. shall be.

Structure of the Invention In order to achieve the above object, the heating device of the present invention has a structure that includes a menu display means including several menu display screens in which a plurality of cooking menus are classified into categories, and can quickly respond to the input of a category key. This has the effect of realizing a menu display device with good response and good operability.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a perspective view of the main body of a heating device showing an embodiment of the present invention. A door body 13 is provided on the front of the main body 12 so that it can be opened and closed freely.
is pivoted. A cooking menu display window 2 is provided on the operation panel 1.

The third drawing is a detailed view of the operation panel 1.

The user selects category key 1, which is a means of selecting categories.
Press any one from 4.For example, press “
Press Nirekku hard °. Then, eight menus belonging to the microwave oven high heat cooking category appear on the cooking menu display window 2 as shown in the figure. This cooking menu display device will be described in detail later.

Now, when the desired cooking menu appears in the cooking menu display window 2, the user further selects one of the desired menus and presses one of the menu keys 15 serving as menu selection means.

For example, if you select "Potato", "Potato" will be displayed in the display window 16.
OC1° is displayed, and a sequence for automatically cooking potatoes is preset in the control unit. Next, when the cooking start switch 17 is pressed, heating starts.

However, it is currently impossible to automate all of the many menus; therefore, it is often impossible to find the desired menu even if a certain category is selected. In such cases, cook manually.

That is, the desired heating time and temperature are set using the timer 18 and the -open temperature setting key 19.

Even during such manual cooking, according to the present invention, there is no need to press another mode key to set the heating mode or output. The tab category key 14 corresponds to the selection of the heating source (microwave cooking or heater cooking) and the setting of the output (strength/weakness) of the heating source, for example, Paeresoku High n, # Niretsuku Weak+l, II Grill Pa.

Since the category key 14 is used for both menu selection in automatic cooking and heating mode setting in manual cooking, the user first checks the contents of the menu display window 2, If automatic cooking is not possible, manual cooking is sufficient, and there is no need to set the heating mode again at this time.

Note that 20 is a cancel key, which cancels the preset menu.
Erase settings, temperature settings, etc. Further, the timer 18 is configured with a volume or a rotary encoder, and if the menu key 15 is not pressed after the category key 14 is pressed and the timer 18 is rotated, the manual cooking mode is activated, and the heating time is displayed in the display window 16. appear. By tapping the temperature setting key 19 or by continuing to press it, a desired temperature is set by sequentially increasing or decreasing the temperature.

FIG. 4 is a book diagram showing the configuration of such a heating device. Various commands from the operation panel 1 are input to the control section 21. The control unit 21 controls the heating source, etc. based on this command. When a category is selected, the control unit 21
A predetermined menu screen is displayed on the menu display device 22. A multilayer liquid crystal is used as the menu display device 22, and a liquid crystal is also used as the numerical display device 23. 24 is a driver for this liquid crystal. This multilayer liquid crystal will be described in detail later.

Next, when the user selects a menu and presses the cooking start switch, the controller 21 starts supplying power to the magnetron 26 via the driver 25. Then, the cooking of the object to be heated 28 in the heating chamber 27 begins. 029 is a turntable motor that rotates the object to be heated 28 of the tobacco and improves the uneven cooking. 3o cools the magnetron 26, and
This is a fan that ventilates the inside of the room.

As the cooking progresses, steam and various gases are generated from the heated object 28. That gas! 'j, exhaust guide 31
The progress of heating of the object to be heated 28 can be monitored by a humidity sensor or a gas sensor 32 disposed inside the exhaust guide 31, which is discharged from the body. 33 is a detection circuit of the sensor 32. Control unit 21 (this sensor 3
2, the end of cooking is determined, power supply to the magnetron 26 is automatically stopped, and the user is notified of the completion of cooking.

Note that as the sensor 32, an infrared sensor that detects the surface temperature of a heated object, a thermistor that monitors the temperature of intake and exhaust air, and the like can of course be used.

During oven cooking and grill cooking, the electric heater 34 is energized, and the temperature inside the heating chamber 27 is maintained at a constant temperature by a temperature sensor 36 such as a thermistor.

Next, FIG. 5 shows the structure of a multilayer liquid crystal. In this embodiment, a menu display device 22 and a numerical display device 23 are integrally configured. (a) Figure shows front view, (1))
The figures each show a side sectional view.

This display device is divided into a multi-layer section for displaying a menu and a single-layer section for displaying numerical values.The single-layer section has the first layer of liquid crystal fully extended and is also used as a menu key. That is, Figure (a) shows a state in which all segments of the first layer are lit. Next, the liquid crystals are layered on the 2nd layer, the 3rd meter layer, and the 2nd layer.
grill".

It has a menu screen that corresponds to "oven". A predetermined menu screen can then be displayed on the menu display window under the control of the control section.

36 is a cover glass, 37 is a substrate, 38 is a Nupesa, 3
9 is a diaphragm, 40 is a filler, and a segment pattern and a common electrode pattern are printed on the cover glass, diaphragm, and substrate.

It goes without saying that the numerical display section may be constructed of a separate liquid crystal or other device such as a fluorescent display tube.

Next, FIG. 6 shows a specific example of the control circuit. The control unit 21 is composed of a microcomputer heater (hereinafter abbreviated as "microcomputer"). Category keys and menu keys are configured as a key matrix 41, scanned by sweep signals SO to S6, and input to input ports E0 to E3.

On the other hand, control to one power supply section (d is performed by output boat Ro-R2, heat source switching relay 42, output switching relay 43.
Activate the power relay 44. Heat source switching relay 42 (l
-11, switch the power supply to the magnetron 26 and the electric heater 34; Further, the output switching relay 43 is used to intermittently vary the average output of the magnetron 26,
by controlling the power supply to.

Keep the heating chamber temperature constant. The power relay 44 is a main power switch that controls the supply of electricity to the heating device. Door switches 45 and 46 are also connected to the Ichiu circuit, which controls the power supply to the heat source in response to opening and closing of the door. 29 is a Kuhntaple motor 30 which is a blower fan.

Reference numeral 47 is a notification device, which is comprised of a buzzer and a voice synthesis circuit. Notifies the user when key power is on, when cooking is complete, etc.

The sensor 32 and thermistor 3s are connected to input ports A/D+ and A/Do with built-in A/D converter,
The change in resistance value is converted into a change in voltage and read into the microcomputer 21. This data is used to monitor the progress of cooking and automatically detect when cooking is complete.

The multilayer liquid crystal 48 serving as the display section has output ports C0Mo to CoM2 with built-in liquid crystal drivers. The lighting is controlled by Do to Dn. C0Mo-C0M2 are common electrodes, and in this embodiment, three-division dynamic lighting control is performed. Do
-Dnid segment electrode. Of course, static lighting or multiple dynamic lighting can be performed.

Next, the program of the microcomputer, which is the control section, will be explained using FIG. First, the microcontroller is waiting for a category key to be input (A). When a category key is input, the microcomputer lights up a predetermined menu screen on the multilayer liquid crystal display (B). If the menu key is then input (C), a predetermined auto-sequence is set (D).
. At this time, instead of the menu key, if the -timer volume is rotated, or if the rotary encoder is rotated (E),
If the manual time is set (F) and the temperature setting key is pressed (G), the manual temperature is set (H).
). In this way, the category key can also be used to set the heating mode during manual heating, and the user first checks the contents of the menu display window, and if automatic cooking is not possible, it is likely that the manual cooking is off. There is no need to set .

Subsequently, when the start key is input (I+ to I3), heating starts (J1 to J3). The end of cooking is then monitored and controlled according to each heating mode.

For automatic cooking, the sensor (K), for manual time cooking, the timer (L), and for manual temperature cooking, the thermistor monitors the progress of cooking, respectively, and finishes the cooking.

Now, with the above program, the embodiments shown in FIGS. 2 to 6 can be operated. Next is another fruit/l'I!
An example of this will be described below. In Fig. 8, the category key is omitted by normally displaying the category on the menu display 2. In other words, when the cooking is finished or When cancelled, the display returns to the category display as shown in the figure.Then, the user first presses the category/menu key 49 and selects the desired category.Then, the selected menu screen appears in the menu display window 2, and The user then selects a desired menu using the category/menu key 49.

As described above, according to this embodiment, the category key can be omitted, and the operation panel is simpler than the embodiment shown in FIG. 3, resulting in improved operability.

FIG. 9 is an example of implementing the present invention without using a multilayer display device. In other words, this is an example in which menu names belonging to four categories are mixed and arranged on the same screen, and only predetermined segments are lit. For example, (&) the picture is "Haurengusa"
, ``Oden'', ``Gratin'', and ``Cutsky'', and if Grill is selected, the segment ``Gratin'' is selected and lit as shown in (b). In addition to liquid crystals, fluorescent display tubes, light emitting diodes, EL, etc. can be used as display devices. Since it is a single layer, it can be constructed at low cost. It is also possible to combine this embodiment with a multilayer display without reducing the number of layers.

Effects of the Invention As described above, the present invention can provide the following effects.

(1) A desired menu can be displayed instantly and operability is good. There is no need to wait for the motor to rotate as in the past.

(2) Fewer breakdowns. However, even if a malfunction occurs, it is safe to display an incorrect menu as in the conventional mechanical system, which is easy to cause the display to be blank.

(3) Since the heating mode can be set using the category key, the user 1d first examines the contents of the menu, and if he finds the desired menu, he can select automatic cooking, and if he cannot find it, he can select manual cooking. There is no need to set the heating mode again, just operate the timer or temperature setting key directly.

[Brief explanation of drawings]

Figure 1 is a diagram showing the configuration of a conventional menu display device, Figure 2 is a diagram showing the configuration of a conventional menu display device.
The figures show a heating device which is an embodiment of the present invention; Fig. 6 shows a specific example of a control circuit; Fig. 7 is a chart showing an example of an example of a control program; and Fig. 8 shows a diagram of an operation panel. FIG. 9 is a front view showing an embodiment of the present invention, and FIG. 9 is a diagram showing an embodiment of a display body using a single layer display device. 2...Cooking menu display window, 14...Category key, 16...Menu key, 21
...control section. 22... Menu display means-48...
Multilayer liquid crystal. Name of agent Patent attorney Toshio Nakao and 1 other person95 Figure 1 Figure 2 Figure 2 Figure 3 Figure 4 Figure 5 (DJ) Figure 7 Figure 8

Claims (1)

[Claims] (1) A heating means for heating an object to be heated, a control unit for controlling the heating means, a category selection means for selecting a plurality of grouped heating patterns, and a category selection means for selecting a plurality of grouped heating patterns; a menu selection means for selecting any one from among;
A menu display means is provided with a plurality of menu screens for displaying information related to menus for each category = +' IJ-, and the control section selects one of the menus according to the category manually selected by the category selection means. A heating device configured to display a predetermined menu screen on a display means. (2) The heating device according to claim 1, which uses a multilayer liquid crystal as the menu display means. (3) The menu display means mixes and displays a plurality of menu information belonging to different categories. The heating device according to claim 1, wherein the heating device is selectively turned on according to the category of human power.