JPH06185736A - Heating cooker - Google Patents

Abstract

PURPOSE:To provide a heating cooker in which a cooking degree of a matter to be cooked can be regulated with a variable width in the degree in which the degree is set. CONSTITUTION:An adder 6 adds a signal Vs from an input unit 1 for setting a normal cooking degree to a signal Vm from a signal generator 2 for altering a cooking degree, and a cooking process deciding unit 7 decides a cooking process according to a signal Vp from the adder 6 and controls heating means 9 via a controller 8. Thus, a variable width is applied to the cooking degree set by the unit 1, and the cooking degree set by the unit 1 can be regulated with the variable width.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a rice cooker for cooking rice,
Regarding cooking devices such as microwave ovens that heat food,
In particular, it relates to a cooker capable of adjusting the finished condition.

[0002]

2. Description of the Related Art Conventionally, a heating cooker of this type has been disclosed in JP-A-4-82516 or JP-A-4-17092.
The structure of a rice cooker as shown in Japanese Patent No. 0 is known. With this configuration, as shown in FIG.
According to the hardness of the finished rice input from, the rice cooking process determination unit 22 determines the temperature and time of the pre-cooking process,
A temperature sensor as a cooking sensor that determines a rice cooking process such as a heating amount for heating and a boiling maintaining heating amount of the cooking process, and the control unit 23 determines the cooking state of the object to be heated according to the rice cooking process determined by the rice cooking process determination unit 22. (Not shown)
By controlling the heating amount of the heater 24 as a heating means while feeding back the value, the hardness of the rice set by the user through the input unit 21 can be obtained.

[0003]

In the heating cooker having such a conventional structure, the input portion 21 is normally set with three stages of finishes such as "hard", "normal" and "soft". If the user prefers "soft rice", the user inputs "soft rice" in the input unit 21 to cook "soft rice" every time. However, the human sense is generally relative, and at the same time, there is a phenomenon of acclimation to the same stimulus, which makes us tired of having the same hardness every time. Conversely, they are sensitive to changes in stimuli,
Taste is no exception to that example. And it is generally preferred that the rice has the same hardness every time, but for example, even people who prefer "soft rice" sometimes want to eat rice that is slightly harder than "soft rice". Or, you may want to eat rice that is even softer than "soft kame". This is because, as described above, even if there is a phenomenon of acclimatization to the same stimulus, that is, hardness, it becomes tired, and in such a case, the conventional configuration cannot sufficiently cope with it. .

Such a problem is not limited to a rice cooker, but is a problem common to heating cookers that heat and cook foods and that can set the finish condition.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a heating cooker capable of adjusting the finished condition of an object to be heated by changing the set finished condition.

[0006]

In order to achieve the above object, the present invention provides a heating means for heating an object to be heated, an input section for inputting the finished condition of the heated object, and a change signal for changing the finished condition. A signal generation unit for outputting, a finish condition changing unit for changing the finish condition input from the input unit according to the signal from the signal generating unit, and a process for determining the cooking process according to the signal from the finish condition changing unit. The configuration includes a determination unit and a control unit that controls the heating means according to the cooking process determined by the cooking process determination unit.

Further, the configuration is such that a change width adjusting means for adjusting the magnitude of the signal input from the signal generating section to the finished condition changing section is provided.

Further, the configuration is provided with a selection switch for selecting whether or not to input the signal from the signal generation section to the finish condition changing section.

The signal waveform output from the signal generator is a regular waveform. Further, the signal waveform output from the signal generator is irregular.

The waveform output from the signal generator is
The power spectrum is an irregular waveform showing 1 / f fluctuations inversely proportional to the frequency.

Further, the signal generating section is configured to include a plurality of signal generating means having different output waveforms and a selection switch for selecting the output of the signal generating means.

[0012]

In the above structure, the finish condition of the object to be heated input from the input section is changed according to the change signal output from the signal generating section, so that the object to be heated set at the input section is changed. The finished condition is changed by the change signal from the set finished condition.

Further, by providing the changing width adjusting means for the changing signal, the changing width of the finished condition can be freely adjusted.

Further, since the change signal selection switch is provided, it is possible to freely select whether or not to change the finish condition.

Further, by making the waveform of the change signal a regular waveform, the changed finished condition becomes reproducible.

Further, by making the waveform of the change signal irregular, the changed finish condition becomes an accidental one that changes each time cooking is performed.

Further, since the waveform of the change signal is an irregular waveform showing 1 / f fluctuation, the changed finish condition varies with unpredictable chance and stochastically predictable expectation. Will be things.

Further, by providing a selection switch for selecting a plurality of signals having different output waveforms, it is possible to freely select a desired finish condition.

[0019]

EXAMPLES Examples of the present invention will be described below with reference to FIGS. 1 to 4 using a rice cooker as an example.

In FIG. 1, reference numeral 1 denotes an input section for inputting the completion of cooked food, that is, the hardness of the rice, which is selected from three hardness levels of "hard", "normal" and "soft". It has a switch 1a that can output a different DC voltage Vs for each hardness. The DC voltage Vs is set to 4V for "hard", 3V for "normal", and 2V for "soft", for example. Reference numeral 2 is a signal generator that outputs a change signal that changes the finish condition input by the input unit 1. The output voltage Vm is set to a voltage having a peak value of plus or minus 1 V that linearly changes around 0 V, for example. Has been done. Reference numeral 3 is a switch for selecting whether or not to change the finish condition, and is for selecting whether to input a change signal from the signal generating unit 2 to the finish condition changing unit 4. 4 is a finished condition changing unit, which is a voltage Vs output according to the hardness input by the input unit 1.
And the voltage Vm output from the signal generator 2 via the selection switch 3 is added to the finished condition, that is, the voltage Vn adjusted by the volume 5 as the change width adjusting means for adjusting the change width of the hardness of the rice. The output voltage Vp of the adder 6 is Vp = (Vs + Vn). Reference numeral 7 is a cooking process determination unit that determines the rice cooking process such as the temperature and time of the pre-cooking process, the heating amount for heating in the cooking process, and the boiling maintaining heating amount based on the output voltage Vp from the finish condition changing unit 4. . A control unit 8 controls the heater as the heating unit 9 while feeding back the cooking state of the object to be heated by a temperature sensor (not shown) as a cooking sensor in accordance with the rice cooking process determined by the cooking process determination unit 7.

In the above configuration, when the user inputs "softening" with the input section 1, the input section 1 displays
As shown in (a), the output voltage Vs of 2V is output. At this time, the output voltage Vp from the finish condition changing unit 4 is also 2V as shown at t ₀ in FIG. If rice is cooked in this state, the finished product will have a standard "softness".

At the next rice cooking, the user wants to change the hardness, that is, the hardness is changed, the selection switch 3 is turned on, and the change in the hardness of the rice is changed to a medium change. The positive voltage Vm from the signal generator 2 shown in FIG. 2 (b) is adjusted by the variable width adjusting means 5 such that the peak value of the adjustment voltage Vn is 0.5V as shown in FIG. 2 (c).
Adjust so that Then, the adder 6 outputs the output voltage Vs from the input section 1 and the adjustment voltage V from the change width adjusting means 5.
n is added, and the output voltage Vp ₁ is set to 2.5 V shown at t ₁ in FIG. 2D and output to the cooking process determination unit 7.
If rice is cooked in this state, the finished product will be softer than the standard "soft" than "normal".

Further, the output voltage Vm from the signal generator 2 is made negative as shown in FIG. 2B, and the peak value of the adjustment voltage Vn by the change width adjusting means 5 is as shown in FIG. 2C. When the output voltage Vs from the input unit 1 and the adjustment voltage Vn from the change width adjusting means 5 are added, the adder 6 adds the output voltage Vp ₂ to the output voltage Vp ₂ shown in FIG. The voltage is set to 1.5 V shown in t ₂ of FIG. When rice is cooked in this state, the finished product is softer than the standard "soft rice".

When the adjustment of the voltage by the change width adjusting means 5 is set to 0, the output voltage Vp of the adder 6 becomes 3 V or 1 V, which is more "normal" than the above, and softened. Alternatively, it becomes a softer "softer" one.

As described above, according to the heating cooker of the embodiment of the present invention, the degree of soft turtle is centered on the standard "soft turtle" and softer than "normal" or even softer soft turtle. There is an effect that it is possible to change the finished condition of the product and to adjust it with a range of change.

In the present embodiment, the selection switch 3 is adapted to turn on / off the output of the signal generator 2.
It is also possible that the signal from is output to the adder 6 and the cooking process determination unit 7, respectively, and one of the outputs is selected.

There are various possible waveforms of the output signal from the signal generator 2 in the above-mentioned embodiment, one example of which is shown in FIG.

The waveform shown in FIG. 3 (a) is an example of a regular waveform in which the frequency of appearance of the rice having the hardness selected and set by the user is highest. The rice may be harder or softer than the hardness set as, but in many cases, the rice has reproducibility and the set hardness is obtained.

The waveform shown in FIG. 3 (b) is an example of a waveform which has an average value of zero V but is irregular in time, and its power spectrum exhibits a so-called 1 / f fluctuation which is almost inversely proportional to the frequency. It has a regular waveform. Since the regular signal waveform described above makes it possible to predict what the finished product will look like this time, the freshness of the stimulus brought about by the unknownness of not knowing what the finished product will be. However, according to the irregular signal waveform, because the signal changes irregularly, the hardness of the rice also changes irregularly from time to time, and it is possible to predict the next completion condition from this completion condition. become unable. Further, when the 1 / f fluctuation signal is used, the unpredictable contingency of the white noise having the power spectrum of 1 / f ⁰ and the probabilistically predictable expectation such as drunk walking having the power spectrum of 1 / f ² It can be a variation in the finished condition, which is a mixture of the characteristics.

FIG. 4 shows another embodiment of the present invention, and 10 is a signal generator, which is a regular signal generating means 11 for outputting a regular waveform and an irregular signal generating means 12 for outputting an irregular waveform. And whether the signal from the regular signal generating means 11 or the signal from the irregular signal generating means 12 is input,
It is composed of a change selection switch 13 for selecting whether or not to make no change. According to this configuration, it is possible to select the reproducible finished state due to the regular signal waveform, the random finished state due to the irregular signal waveform, and the unfinished finished state according to preference.

Although the rice cooker using the electric heater as the heating means 9 has been described in the above embodiment, a box-type cooker such as a high frequency heating cooker or an electric oven, a gas burner or an electric heater is used. It can also be implemented in a heating cooker other than a rice cooker, such as a stove.

[0032]

As is apparent from the above description, according to the heating cooker of the present invention, the finished condition of the object to be heated input from the input section is changed according to the change signal output from the signal generating section. By doing so, the finished condition of the object to be heated set in the input unit is changed by the change signal from the set finished condition, so that the range of change in the finished condition can be widened.

Further, by providing the changing width adjusting means for the changing signal, the changing width of the finished condition can be freely adjusted.

Further, by providing the change signal selection switch, it is possible to freely select the necessity of the finished condition.

Further, by making the waveform of the change signal a regular waveform, the changed finish condition can be made reproducible.

Further, the waveform of the change signal is changed to an irregular waveform,
Further, by making the irregular waveform showing the 1 / f fluctuation, the changed finishing condition changes every cooking and becomes accidental, so that a fresh feeling of stimulation can be obtained.

Further, by providing a selection switch for selecting a plurality of signals having different output waveforms, the finished condition can be freely selected.

As described above, according to the present invention, it is possible to provide a heating cooker capable of adjusting the finish condition of the object to be heated by giving the set finish condition a variation range.

[Brief description of drawings]

FIG. 1 is a block circuit diagram of a heating cooker according to an embodiment of the present invention.

2 (a), (b), (c) and (d) are voltage characteristic diagrams for explaining the same operation.

FIG. 3A is the same signal waveform diagram, and FIG. 3B is the same signal waveform diagram.

FIG. 4 is a block circuit diagram of another embodiment.

FIG. 5 is a block circuit diagram of a conventional cooking device.

[Explanation of symbols]

 1 Input Section 2, 10 Signal Generation Section 3 Selection Switch 4 Finishing Condition Change Section 5 Change Range Adjusting Section 7 Cooking Process Determining Section 8 Control Section 9 Heating Section 11 Regular Signal Generation Section 12 Irregular Signal Generation Section 13 Change Selection Switch

Claims (7)

[Claims] 1. A heating means for heating an object to be heated, an input section for inputting a finished state of the heated object, a signal generating section for outputting a change signal for changing the finished state, and the input section. The finished condition changing unit that changes the finished condition according to the signal from the signal generation unit, the process determination unit that determines the cooking process according to the signal from the finished condition change unit, and the cooking process determination unit And a controller for controlling the heating means according to the prepared cooking process. 2. The heating cooker according to claim 1, further comprising change width adjusting means for adjusting the magnitude of the signal input from the signal generating section to the finished condition changing section. 3. The heating cooker according to claim 1, further comprising a selection switch for selecting whether or not to input a signal from the signal generating section to the finished condition changing section. 4. The heating cooker according to claim 1, wherein the signal waveform output from the signal generator is a regular waveform. 5. The heating cooker according to claim 1, wherein the signal waveform output from the signal generator is an irregular waveform. 6. The cooking device according to claim 5, wherein the waveform output from the signal generator is an irregular waveform showing a 1 / f fluctuation whose power spectrum is inversely proportional to frequency. 7. The cooking device according to claim 1 or 2, wherein the signal generator comprises a plurality of signal generators having different output waveforms and a selection switch for selecting an output of the signal generator.