JPH0526100B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cooking device such as a high-frequency heating device generally referred to as a microwave oven, and particularly to improving the usability of the device.

[Conventional technology]

Heating control methods for high-frequency heating devices, commonly referred to as microwave ovens, include a method of setting the heating time (time control) and a method of setting the finished temperature using a temperature probe (temperature control).

Traditionally, you first select either time control or temperature control, and then, if it is time control, you select the control time.
For temperature control, the method was to set the control temperature and then press the start button to start cooking.
FIG. 4 is a flowchart showing an example of a conventional heating control method. First, when the power is turned on (step 34), it is determined whether a control method has been selected (step 35), and time control is performed. If is selected, the time input acceptance mode (steps 36→37) is entered, and if temperature control is selected, the temperature input acceptance mode is entered (steps 36→42). After that, the cooking start reception mode (step 39) is entered only after the time setting (step 38) or temperature setting (step 43) is accepted, and then the cooking start mode is set (step 40) and cooking begins (step 43). 41).

In the conventional apparatus, when cooking as described above, the control method was first selected, and then the control time or control temperature was set.

[Problem that the invention seeks to solve]

However, in the case of the above-mentioned conventional device, after selecting the heating control method between time control and temperature control,
Since the control time or control temperature must be set, the cooking operations are troublesome and the method is inconvenient to use. Particularly, when used for cooking in which cooking is repeated for the same amount of time, the time must be checked and set each time, and its usability cannot be ignored.

The present invention has been made to solve these problems, and aims to provide an easy-to-use heating cooking device that can omit frequently used time or temperature settings. be.

[Means for solving problems]

The heating cooking device according to the present invention includes an initial setting means that has an operation part such as a volume knob and is composed of a variable resistor, and an A/D that converts a voltage value supplied from the initial setting means into a digital value. The apparatus includes a converter, a control means such as a microcomputer that inputs the digital value corresponding to the predetermined time or temperature, and a memory that stores the digital value.

[Effect]

In the present invention, by setting a predetermined time or a predetermined temperature in advance by the initial setting means, the above-mentioned time or temperature is stored in the memory, and subsequent cooking can be performed without having to set the same time or temperature.

〔Example〕

Hereinafter, the present invention will be explained by showing examples. FIGS. 1 and 2 are an external view and a circuit diagram showing an embodiment of a high-frequency heating device according to the present invention. As shown in FIG. 1, an operating section 1 of the high-frequency heating device includes various key switches arranged below a display device 2 that displays time or temperature. Of these key switches, 3 and 4 are for selecting a control method, 3 is a TIME key for time control, or a time control key, and 4 is a TEMP key, for temperature control. Reference numeral 5 denotes a time setting volume (OTC...ONE TOUCH COOKING) constituting the initial setting means provided according to the present invention, and has an operation part such as a volume knob. The initially set time is then stored in the memory of the microcomputer, which will be described later, and
is displayed on the display device 2 at the time of operation. Reference numeral 6 is a time/temperature setting key for setting time or temperature, which can be input after the TIME key 3 or TEMP key 4 is received. 7 is the START key, which starts cooking by operating it.
Cooking is performed until the set time or set temperature displayed on the display device 2 is reached.

On the other hand, in FIG. 2, TIME key 3,
TEMP key 4, time temperature setting key 6, START
Signals set using the keys 7 and the like are input to an input circuit 9 of a microcomputer 8 as a control means. The microcomputer 8 includes an input circuit 9,
It is composed of a CPU 10, a memory 11, an output circuit 12, etc., and serves to output a display signal from the output circuit 12 to the display device 2 or to send an operation signal to the relay 13, depending on the signal input to the input circuit 9.

The relay 13 is connected to a commercial power source 14 that supplies power to the heating source.
It serves as a main switch, excites the high-voltage transformer 15 of the high-frequency heating device, and controls the output of the high-frequency generator composed of a high-voltage capacitor 16, a high-voltage diode 17, and a magnetron 18. By energizing the magnetron 18 serving as a heating source, microwaves can be sent inside the high-frequency heating device to heat the object to be heated.

Further, a time setting volume (variable resistor) 5 constituting the initial setting means is connected together with a voltage dividing resistor 21 between a DC power supply (VDD) 19 and a ground (VSS) 20, and its divided voltage 22 is used as a setting signal. The A/D converter 23 converts the digital value into a digital value corresponding to the time set by the time setting volume 5, inputs it to the input circuit 9 of the microcomputer 8, and stores it in the memory 11.

Next, the operation of the above embodiment will be explained with reference to FIG. FIG. 3 is a flowchart showing an embodiment of a time control method using the TIME key 3.

After starting (step 24), press TIME key 3 or
Which control method of the TEMP key 4 is selected is determined in steps 25 and 26, and if the TIME key 3 is selected, the display device 2 displays the cooking time preset with the time setting volume 5, for example, 1 minute of cooking time. is displayed (step 28). Note that when TEMP key 4 is selected, temperature control mode (step
27). The 1 minute display in step 28 is the set time predetermined by the time setting volume 5, and this display is performed only when the TIME key 3 is accepted, and the time setting volume 5 of the operating unit 1 shown in FIG. 1 is changed. You can change it freely by doing so. That is, in FIG. 2, the microcomputer 8 inputs the value of the divided voltage 22 set by the time setting volume 5 to the A/D converter 23.
By reading it into the memory 11 through the program, it is sufficient to set the set time for the divided voltage 22 in advance on the program.

In this case, after 1 minute is displayed (step 28), the cooking starts or the time input reception mode is entered (step 29), but if the cooking start setting is made here (step 30), the 1 minute cooking starts immediately. (Step 31). Cooking for one minute can be achieved by sending an output signal from the microcomputer 8 to the main relay 13 in FIG. 2 for one minute. In this case, the magnetron 18 generates microwaves for one minute to heat the object. On the other hand, if you want to set the set time to a value other than 1 minute, you can do so by inputting the time using the time/temperature setting key 6 (step 32). In this case, the set time will be displayed on the display device 2 (step 33). ),
By accepting the cooking start setting (step 30), it becomes possible to start cooking (step 31).

As described above, according to this embodiment, the time setting volume 5 is configured of a variable resistor and has an operation part such as a volume knob, and a memory that stores a digital value corresponding to a predetermined time set by the time setting volume 5. 11, the time can be set simply by turning the operating section (knob) of the time setting volume 5. Further, by turning the time setting volume 5 and changing the value of the variable resistor, the value input to the microcomputer can be changed, and the preset time can be easily changed. Furthermore, by setting the time for repeated cooking, etc., you can save yourself the trouble of setting the time every day. In addition, when you forget the cooking time, just select the heating function and the cooking time will be displayed immediately without looking at the cooking book, making it an easy-to-use device. 1 minute cooking key as one touch ticking (OTC) without adding a separate key such as a key,
Another advantage is that functions such as the 2-minute cooking key can be set freely, making the device easy to understand in terms of design.

In the above embodiment, the preset time is displayed and cooking is performed at the set time by pressing the TIME key 3, but the preset temperature is displayed and cooking is performed by pressing the TEMP key 4. It is also possible to perform cooking at a set temperature.

〔Effect of the invention〕

As explained above, according to the present invention, the initial setting means includes an operating section such as a volume knob and is composed of a variable resistor, and a digital value corresponding to a predetermined time or temperature set by the initial setting means is stored. Since it is equipped with a memory, it is possible to omit setting time or temperature each time cooking is performed. Furthermore, the time or temperature can be easily set by simply operating one operating section of the initial setting means, such as a volume knob. Furthermore, by changing the value of the variable resistor of the initial setting means, the value input to the control means can be changed, and the preset time or temperature can be easily changed. Therefore, there is an effect that a heating cooking device that is easy to use can be obtained.

[Brief explanation of the drawing]

Figure 1 is an external view showing one embodiment of the present invention, Figure 2 is an external view showing one embodiment of the present invention.
The figure is a circuit diagram of the above embodiment, FIG. 3 is a flowchart showing the operation of the embodiment, and FIG. 4 is a flowchart showing the operation of the conventional example. 5... Initial setting means, 8... Control means, 18... Heat source. Note that the same reference numerals are used for the same or corresponding parts in the figures.

Claims (1)

[Scope of Claims] 1. A heating cooking device comprising a control means 8 that stops energizing the heat source after a predetermined time has elapsed since power has been supplied to the heat source or after a predetermined temperature has been reached, comprising: a display device 2; , time control key 3 or temperature control key 4, time and temperature setting key 6, operation parts such as volume knob, and variable resistor 5.
and an A/D converter 23 that converts the voltage value supplied from the initial setting means into a digital value, and the control means 8 is configured to convert the digital value from the initial setting means into a digital value. comprising a memory 11 for storing values, and when the time control key 3 or the temperature control key 4 is selected, corresponding to the predetermined time or temperature;
The digital value from the initial setting means is displayed on the display device 2, and then when the start key 7 is set to start cooking, cooking is immediately executed based on the digital value, and the time and temperature are set. When a new digital value is input using the key 6, the new digital value is displayed on the display device 2, and when a cooking start setting is subsequently made using the start key 7,
A heating cooking device configured to perform cooking based on the above new digital values.