JPH0578732B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a cooking device that can automatically cook various cooking menus, and in particular, is equipped with an oven heating function.

BACKGROUND ART FIG. 8 shows a conventional operating section of a heating cooker. Direct select keys 1 to 4 are frequently used menus. i.e. cake key 1
When you press , the "cake" display lights up on the display tube 5,
Cooking can be started by pressing the start key 6. That is, since cooking can be started with just two operations, the operation is simple and easy to use. The same applies to the gratin key 2, the warming key 3, and the raw defrosting key 4. For a group of favorite menus that are used less frequently than the frequently used menus, first press the favorite menu key 7.
Then, the display of "favorite" lights up on the display tube 5.
Next, turn the timer knob 8 and the display tube 5 will show 1 to 20.
The number corresponding to the menu written on the menu table 9 is set, and the start key 6 is pressed to start cooking. At the same time, the interior light turns on. This favorite menu requires three operations to start cooking, making it complicated and difficult to use.

Problems to be Solved by the Invention That is, in the conventional setting of the favorite menu, the operating procedure is difficult to understand, and in particular, it is difficult to understand what to do after pressing the favorite menu 7. On the other hand, it was not possible to use direct keys for all the favorite menus because it would give the impression that the control panel was rather complicated, and there were also space constraints on the control panel.

The present invention is intended to solve these conventional problems, and aims to make the settings of the favorite menu easier to understand.

Means for Solving the Problems In order to achieve the above object, the heating cooker of the present invention is configured such that when a favorite menu key is pressed, the menu table is illuminated from the rear with an EL display panel for the purpose of instructing the next operation. It is.

Function: As a result, operations that were previously complicated can now be performed with step-by-step instructions, making them much easier.

Also, press the desired menu key and turn the timer knob to set the menu, then press the start key to start cooking. When this start key is pressed, the light on the menu table on the EL display panel is turned off, and at the same time Turn on the interior lights. The interior light is provided to illuminate the food in the heating chamber.
This allows you to see inside the heating chamber even after cooking has started, and you can see at a glance what menu you are currently cooking on.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the drawings.

In FIG. 1, the frequently used menus are the direct select keys 1 to 4, which are very easy to operate and use. For a favorite menu that is used relatively infrequently, first press the favorite menu key 7. Then, the "favorite" display lights up on the display tube 5, and the favorite menu table 9 is backlit on the EL display panel. Figure 2 is an enlarged view of Menu Table 9. The letters and numbers on the menu table are made of transparent material that allows light to pass through from the rear, while the other parts are constructed to block light from the rear. (for example, turn black). FIG. 3 shows a cross-sectional configuration of the menu table, in which the menu table 9 is supported by a resin base 10, and a back plate 12, which is also screwed to the resin base 10, is arranged at the rear of the menu table 9. Back board 12
Attach the EL display panel 11 to the board with double-sided tape 15.
Further, the EL display panel 11 is electrically connected to a printed circuit board 14 by a lead wire 14. Further, the control circuit for the cooking heater is wired on this printed circuit board. From the above, before pressing the favorite menu key 7, the EL display panel 11 is off, so no characters are displayed on the menu table 9, but by pressing the favorite menu key 7,
The EL display panel 11 lights up and the characters on the menu table 9 appear.
It illuminates with EL light and indicates the selection of the menu number. In other words, the menu table lights up only when you need it, so you can understand the operating procedure at a glance. Next, use the timer knob 8 in FIG. 1 to set the number corresponding to the menu you want to cook from the menu table. The number is displayed through the display tube 5.

On the other hand, the EL display panel itself has a very clean and elegant light emission, and it emits light uniformly over the entire surface, so when the center of the favorite menu is bright and the surroundings are dark, like a partial light emitting lamp or LED, It does not cause brightness unevenness and is very flexible and thin, so it can be constructed simply by attaching it to the narrow area between the menu table 9 and the back cover 12 in FIG. 3 using double-sided tape 15.

After setting the menu number, the next step is to put the food 23 into the heating chamber 24 as shown in FIG. 4, close the door 22, and press the start key 6 shown in FIG. By this operation, the heating operation starts and the interior light 2 in Figure 3
5 is turned on to illuminate the food 23 in the heating chamber 24, and the user can see what food is being cooked or the progress of cooking through the door 22. The food is heated by a lower heater 27 located below the food 23, an upper heater 26 located above the food 23, or a high frequency generator 28 that generates radio waves. At the start of heating, the EL display panel 11 turns off. One reason for this is that since the settings of the favorite menu have been completed, there is no longer a need to backlight the favorite menu table 9 on the EL display panel as shown in FIG. 2, resulting in power savings. into two
As a characteristic of the EL display element itself, as shown in Fig. 5, it has a short lifespan when energized at high temperatures and high humidity, so this shortcoming is compensated for. In other words, before the start of cooking, the ambient temperature of the EL display panel 11 in Figure 4 is about 25°C, and the life is long even if the EL display panel 11 is energized, but after the start of cooking, the upper heater 26 etc. are energized, so the temperature is about 70℃. ℃, so EL display panel 11
If the electricity is turned on even after cooking has started, the life of the EL display panel 11 will be extremely shortened. After cooking starts
If the EL display panel is configured to be de-energized (lights off), the lifespan can be maintained relatively long.

To summarize the above operations, when you input your favorite menu key as shown in Figure 6, the EL display panel lights up.
Select menu number and start cooking
The EL display panel remains lit. After the next start, the EL display panel goes off, heating begins and the interior light turns on, and when cooking is complete, heating ends and the interior light also turns off.

FIG. 7 shows a block diagram of the control circuit for the cooking heater. A controller 16 forming the center of the control circuit determines whether or not a cake key 1, favorite menu key 7, start key 6, etc. are input, and if input is input, the contents are displayed through a display tube 5. Also, when the favorite menu key 7 is pressed, the EL display drive circuit 17 is turned on.
The EL display panel 11 is lit by sending the signal.
Also, input information using the timer knob 8 to display the numbers of your favorite menu. Also humidity sensor 1
9. Heating means 1 while inputting temperature sensor 20
8 to control the heating of the food.

Effects of the Invention As described above, according to the cooking device of the present invention, the following effects can be obtained.

(1) The setting procedure for the Favorite Menu, which used to be difficult to understand, is now much simpler and easier to understand by displaying the Favorite Menu list only when necessary.

(2) Although the luminescence of the fluorescent display tube is uneven, the EL display panel itself emits very clear light and is brand new.
Even when the favorite menu table is backwritten,
As expected, it is clean, gives a brand new impression, and has excellent quality.

(3) Since the EL display panel itself emits light uniformly over the entire surface,
There is no unevenness that occurs when the center is bright and the surroundings are dark, which occurs when the favorite menu is backlit and the light is partially emitted.

(4) Since the EL display panel itself is very flexible,
There is no damage during assembly, and workability is extremely good.

(5) The thickness of the EL display panel itself is very thin, approximately 1 mm, so there are no space constraints, and the cooking device's control panel can be designed to be thin and smart.

(6) After cooking starts, the interior light turns on and you can see the food, so you can easily tell what menu item is currently selected.

(7) After cooking starts, the EL display panel is turned off, which means that the favorite menu table is illuminated only when necessary, which saves electricity and energy.

(8) Since the life of the EL display panel can be maintained for a long time, there is no need for maintenance or replacement of the EL display panel, making it economical.

[Brief explanation of drawings]

FIG. 1 is a front view of the operating section of a heating cooker, which is an embodiment of the present invention, and FIG. 2 is an enlarged front view of the same main part.
Figure 3 is a sectional view of the main parts, Figure 4 is a side sectional view of the heating cooker, Figure 5 is a characteristic diagram showing the life of the EL display panel, Figure 6 is a waveform diagram of the same operation, and Figure 7. 8 is a block diagram of the control circuit, and FIG. 8 is a front view of the operating section of the conventional heating cooker. 5... Display tube, 6... Start key, 7... Favorite menu key, 8... Timer knob, 9...
...Favorite menu table, 11...EL display board, 16
... Controller, 18 ... Heating means, 21 ...
Operation section.

Claims (1)

[Scope of Claims] 1. A heating chamber in which food is placed, heating means coupled to the heating chamber to heat the food, means for instructing the start of menu selection, and a menu for classifying and selecting food by symbols. a setting means, a start key for instructing the start of cooking, a means for displaying the selected menu with a symbol, a menu table showing the correspondence between the symbol and the menu, and a position for illuminating the menu table. It has an electroluminescence display panel (hereinafter referred to as EL display panel) and a lighting device that illuminates the food placed in the heating chamber,
The above when prompted to start selecting the menu.
The EL display panel lights up to illuminate the menu table, and by setting the menu and inputting the start key, heating by the heating means is started and the lighting device illuminates the food in the heating chamber. A heating cooker configured to turn off the EL display panel. 2 The EL display panel is located at the rear of the menu table, and the menu table has a patented structure in which the text portion allows light from the EL display panel to pass through, while the non-text portion does not allow light from the EL display panel to pass through. A heating cooker according to claim 1.