JP2004311187A - Heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating cooker capable of notifying the heated state of an object to be cooked in a heating vessel without being influenced by the material and shape of a pot. <P>SOLUTION: The heating cooker having a top plate for putting the heating vessel comprises a heating cooker main body heating the object to be cooked in the heating vessel through a heating means, a vibration sensor detecting the level of vibration generated at the heating vessel, and a notifying means capable of notifying the boiling state of the object to be cooked in the heating vessel in two or more forms depending on the output of the vibration sensor. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a heating cooker having an induction heating (hereinafter referred to as an IH heating cooker) type, a halogen heater, or the like as a heat source.
[0002]
[Prior art]
Conventionally, as a heating cooker of this type, a top plate, a temperature detection unit for detecting the temperature of a pot (corresponding to a heating container) placed on the top plate, heating means, and input to the heating means There is known a device provided with a display unit for displaying a heating input set level corresponding to electric power (see, for example, Patent Document 1).
The conventional temperature detector is disposed at the center of the back surface of the top plate on which the pan is placed, and is configured to detect the center temperature of the bottom surface of the pan by heat conduction through the top plate. Then, when the temperature detected by the temperature detecting section becomes equal to or higher than a predetermined value, the operation is performed so that the set level of the heating input to the heating means is reduced. The display also shifts to a display corresponding to the lowered heating input set level.
[0003]
[Patent Document 1]
JP-A-8-270957 (page 1, FIG. 1)
[0004]
[Problems to be solved by the invention]
However, a heat-resistant insulating material is usually used for the top plate of this type of cooking device. Therefore, when the temperature of the pan is detected by heat conduction through the top plate, there is a problem that the detected temperature change is delayed with respect to the actual temperature change of the object to be heated inside the pan. Further, in the conventional cooking device as described above, there is a high possibility that a large error is given to the temperature measurement depending on the properties (material, shape, etc.) of the pan. That is, the temperature rise gradient differs depending on the difference in thermal conductivity depending on the material and thickness of the pot. In the case of a warped pot with a concave pot bottom, the pot bottom does not contact the top plate, causing a large error in temperature measurement, making it difficult for the temperature detection unit to detect the correct temperature of the object to be heated in the pot. .
[0005]
For this reason, the display means in the conventional heating cooker cannot display the temperature corresponding to the temperature of the object to be heated in the pan, but can only display the heating input setting level of the heating means.
[0006]
The present invention has been made to solve such a problem, and it is an object of the present invention to provide a heating cooker capable of notifying the state of an object to be heated in a heating container without being affected by the material and shape of a pan. Aim.
[0007]
[Means for Solving the Problems]
A heating cooker according to the present invention has a top plate on which a heating container is placed, and a heating cooker body for heating and cooking an object to be heated in the heating container by a heating means; and a vibration transmitted to the heating cooker body. It comprises a vibration sensor for detecting a level, and a notifying means capable of notifying the boiling state of the object to be heated in the heating vessel in two or more forms based on the output of the vibration sensor.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of a heating cooker according to the present invention will be described with reference to the accompanying drawings.
Embodiment 1 FIG.
FIG. 1 is a cross-sectional view showing a state in which a pot is placed on the heating cooker according to Embodiment 1. FIG. 2 is a plan view showing a state in which a pot is placed on the cooking device according to Embodiment 1.
[0009]
1 and 2, a heating cooker according to this embodiment is housed in a box-shaped housing 2 and is provided with an energizing coil 1 which is a heating means spirally wound in one plane, and an energizing coil. A flat top plate 3 which is disposed close to the top of the coil 1 and on which a pot 6 as a heating vessel is placed; a control means 4 for increasing and decreasing the amount of high frequency alternating current flowing through the energizing coil 1; An operation panel 5 is disposed at the front end of the upper surface of the body 2 and receives a signal for starting / stopping heating to the capacity control unit 4 and a signal for setting the temperature of the object to be heated.
[0010]
Here, a transparent heat-resistant insulating material such as crystallized glass is used for the top plate 3. Further, on the upper surface of the top plate 3, the pan 6 containing the object to be heated can be placed at a position facing the energizing coil 1. The pot 6 is generally made of a metal material such as iron, and is placed in an alternating magnetic field formed around the coil in accordance with an instruction from the operation panel 5 when the energizing coil 1 is energized.
[0011]
Further, the heating cooker according to the first embodiment includes a vibration sensor 7 on the rear surface on the rear side of the top plate 3. The vibration sensor 7 detects vibrations caused by bubbles generated by boiling the object to be heated in the pan 6 placed on the top plate 2. The vibration intensity signal output from the vibration sensor 7 is smoothed by the vibration signal smoothing means 8. FIG. 3 is a schematic diagram showing a waveform smoothed by the vibration signal smoothing means 8. The horizontal axis is the output of the vibration smoothing means 8, and the horizontal axis is time. The output of the vibration signal smoothing means 8 is input to the control means 4. When detecting the boiling state from the input waveform, the control means 4 outputs a signal to lower or stop the heating input set level to the energizing coil 1.
[0012]
On the other hand, setting information from the operation panel 5 and output information from the control unit 4 are displayed and notified by the display panel 9. More specifically, as shown in FIG. 2, a setting level of the heating input to the energizing coil 1 is set by a switch 5a on the operation panel 5, and the setting level is displayed on the input setting display means 9a. The input setting display means 9a shown in FIG. 2 is capable of eight-stage input setting and display.
[0013]
The display panel 9 has a boiling display means 9b and a large boiling display means 9c. These two display means are notification means capable of notifying the boiling state of the object to be heated in two or more forms based on the output of the vibration sensor 7. The boiling display means 9b and the large boiling display means 9c display the boiling state in the pan 6 detected by the control means 4 analyzing the waveform smoothed by the vibration signal smoothing means 8.
[0014]
FIG. 4 is a plan view showing the state of the pot when the boiling display means 9b is turned on, and FIG. 5 is a plan view showing the state of the pot when the large boiling display means 9c is turned on. As shown in FIG. 4, during the initial boiling, many fine bubbles are generated in the pan and increase. The vibration level also increases with this, but the boiling display means 9b lights up near the time when the vibration level reaches the maximum value (see "boiling" in FIG. 3). On the other hand, as shown in FIG. 5, as the boiling continues and the temperature rises, large bubbles are generated, but the vibration level is slightly reduced via the maximum value. The large boiling display means 9c lights up in a state where the vibration level is slightly reduced via the maximum value as described above (see "large boiling" in FIG. 3).
Although the display means has two stages in this embodiment, it may be set in a plurality of stages in accordance with the output of the vibration signal smoothing means 8 and the analysis capability of the control means 4.
[0015]
Reference numeral 9d denotes a speaker (sound generating means) for generating a reception sound when the switch 5a is pressed and a notification sound when boiling and large boiling are detected. Informing means for informing in two or more forms may be display means for appealing visually like the boiling display means 9b and large boiling display means 9c, or sounding means for appealing to the auditory sense like the speaker 9d.
[0016]
Next, the operation of the heating cooker according to the first embodiment will be described. First, the pan 6 containing the object to be heated is placed on the top plate 3. Then, cooking selection such as target temperature setting is performed from the operation panel 5, and the set value is displayed on the input setting display 9a. Subsequently, a start signal is input from the operation panel 5, and cooking of the object to be heated starts. Upon receiving the start signal, the control means 4 and the vibration sensor 7 start operating. The control means 4 supplies the high-frequency alternating current to the current-carrying coil 1 with a current amount corresponding to the temperature setting. By the action of the eddy current flowing inside the energizing coil 1, the entire pot 6 is heated as a heating source, and the object to be heated in the pot 6 is heated.
[0017]
As the object to be heated is heated, fine bubbles are generated at the bottom of the pot from around the point where the water temperature in the pot exceeds 80 ° C. The bottom of the pan is vibrated by the impact when the air bubbles are detached from the bottom of the pan, and the vibration is transmitted to the top plate 3 by the vibrating force, and the output of the vibration sensor 7 gradually starts to rise. The increase in the vibration intensity signal becomes maximum when the water temperature is around 95 ° C. At 100 ° C., when boiling completely, the bubbles from the bottom of the pan become large and the exciting force when the bubbles are released from the bottom of the pan weakens, so that the output of the vibration sensor 7 tends to decrease. The vibration intensity signal from the boiling sensor 7 has an AC half-wave waveform, and an output whose peak value increases depending on the vibration intensity is obtained. The raw waveform of the boiling sensor 7 is smoothed by the vibration signal smoothing means 8 to obtain the waveform shown in FIG.
[0018]
The boiling display means 9b on the display panel 9 lights up and displays when a signal at which the vibration intensity reaches a maximum, that is, around 95 ° C. is detected. This lighting display is operated only on the display unit on the side where the pot is placed (in the example, on the right side). Further, a notification sound is generated by the speaker 9d. At this point, if the user does not perform the stop operation and the operation is continued, the object to be heated is overheated due to the continuous energization of the heating coil 1. As described above, the signal intensity smoothed as it progresses to boiling at 100 ° C. due to overheating gradually decreases. The control means 4 detects this, turns on the large boiling display means 9c, generates an alarm sound, and cuts off the power supply to the heating coil 1.
[0019]
Further, after the boiling display means 9b is turned on, the duty ratio of the heating coil 1 may be reduced. Further, even after the large boiling display means 9c is turned on, it is only necessary to lower the duty ratio to the heating coil 1.
[0020]
As described above, the heating cooker according to this embodiment can use the vibration sensor 7 to perform highly accurate boiling detection and display thereof without being affected by the material or shape of the pan. . Further, a plurality of display devices capable of displaying the transition of the boiling state enables more accurate state detection linked to the visible boiling state of the object to be heated. For this reason, the apparatus can be stopped at a required temperature, for example, at an optimum temperature of about 80 ° C. for putting tea, thereby improving usability.
[0021]
In this embodiment, a case has been described in which the vibration sensor 7 is disposed on the back rear surface of the top plate 3. However, the present invention is not limited to this. That is, the vibration sensor 7 only needs to be able to detect a vibration level transmitted to the heating cooker main body constituted by the housing 2 and the top plate 3, and is arranged either inside or outside the heating cooker main body. May be.
[0022]
Embodiment 2 FIG.
FIG. 6 is a plan view showing a state where a pot is placed on the cooking device according to Embodiment 2 of the present invention. FIG. 7 is a cross-sectional view showing a state in which a pot is placed on the heating cooker according to Embodiment 2 of the present invention. The same or corresponding parts as in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
[0023]
As shown in FIG. 6, the cooking device according to this embodiment has a demonstration setting means 5b on the operation panel 5. When the operator operates the demonstration setting means 5b, the cooking device can be switched from the normal mode to the demonstration mode. The demonstration mode is, for example, a mode used for demonstration sales at a store.
[0024]
The display panel 9 is provided with a speaker 9e. As shown in FIG. 7, the speaker 9e is connected to the vibration sensor 7 via the control means 4 and the vibration signal smoothing means 8. The loudspeaker 9e, together with the control means 4, constitutes a first notification means for detecting and notifying the boiling state of the object to be heated.
[0025]
Further, the display panel 9 functions as input setting display means for displaying a heating input setting level for the heating means 1 in the normal mode, and controls the vibration transmitted to the heating cooker body based on the output of the vibration sensor 7 in the demonstration mode. A level meter 9g functioning as vibration level display means (second notification means) for displaying the state is provided. That is, the level meter 9g is connected to the switch 5a for setting the heating input set level to the energizing coil 1 and the control means 4 as shown in FIG. The level meter 9g is also connected to a raw waveform output means 7a which can directly transmit the output from the vibration sensor 7 to the level meter 9g without passing through the vibration signal smoothing means 8. The level meter 9g is configured to be able to display the output of either the switch 5a or the raw waveform output means 7a by switching the connection.
[0026]
Next, the operation will be described. First, in the normal mode, the level meter 9g functions as input setting display means as described above. That is, the level meter 9g is connected to the switch 5a. Therefore, when the set level of the heating input from the switch 5a to the energizing coil 1 is set, the set level is displayed on the level meter 9g. On the other hand, when the heating is started, as the object to be heated is heated, the vibration at the time when the bubbles are released from the bottom of the pot starts to be transmitted to the cooking device main body. This vibration is detected by the vibration sensor 7. The output of the vibration sensor 7 is smoothed by the vibration signal smoothing means 8 to a state where it can be input to the control means 4, and is input to the control means 4. The control means 4 monitors the state of the object to be heated based on the smoothed output of the vibration sensor 7, and notifies the speaker 9e when the state of boiling is detected.
[0027]
Next, the case of the demonstration mode will be described. When the demonstration mode is selected by the demonstration setting unit 5b, the level meter 9g functions as a vibration level display unit instead of the input setting display unit as described above. That is, the connection of the level meter 9g can be switched to the raw waveform output means 7a side. The raw waveform output means 7a does not pass through the vibration signal smoothing means 8 as described above. Therefore, the level meter 9g can display, via the raw waveform output means 7a, the state of the output of the vibration sensor 7 which has not been smoothed by the vibration signal smoothing means 8. Note that even in this demonstration mode, the notification of the boiling state by the speaker 9e is performed in the same manner as in the normal mode. That is, when the heating is started, the vibration starts to be transmitted from the bottom of the pot to the main body of the cooking device, and this vibration is detected by the vibration sensor 7. The output of the vibration sensor 7 is smoothed by the vibration signal smoothing means 8 to a state where it can be input to the control means 4, and then input to the control means 4. The control unit 4 monitors the object to be heated based on the smoothed output of the vibration sensor 7 and, when a boiling state is detected, notifies the speaker 9e.
[0028]
Next, the display of the level meter 9g will be described in detail with reference to FIGS. FIG. 8 is a diagram showing a raw waveform of the vibration sensor 7 and a waveform after smoothing. FIG. 9 is a conceptual diagram showing an external vibration input to the cooking device. In FIG. 8, the horizontal axis represents time, and the vertical axis represents vibration intensity. The vibration intensity on the vertical axis is divided into eight stages. In FIG. 8, the waveform of the raw waveform output means 7a is a half-wave AC vibration intensity waveform shown as a vibration raw waveform 50a in the figure. This raw waveform is converted by the vibration signal smoothing means 8 into a vibration smoothed output waveform 50b. The vibration raw waveform 50a outputs a real-time vibration waveform that is not smoothed. For this reason, when an external vibration as an external vibration input is given by hitting the top plate 3 with a hand or the like as shown in FIG. 9, a peak waveform as shown at 50c at the time of the external vibration input in FIG. 8 is obtained. Can be However, the vibration smooth output waveform 50b does not appear as a large vibration waveform because the peak waveform at the time of input of the external vibration is also smoothed and averaged. What is displayed on the level meter 9g in the demonstration mode is the level of the vibration intensity corresponding to the raw vibration waveform 50a in FIG.
For example, when an external vibration is input as shown in FIG. 9, the raw waveform output means 7a detects the peak value and displays the level on the level meter 9g. In the example of FIG. 8, a signal exceeding the vibration intensity level 7 due to the external vibration is detected. Therefore, in FIG. 9, the display is lit up to the level 7 of the level meter 9 g. The output of the raw waveform output means 7a can display an external vibration or the like in real time. Therefore, at the time of the demonstration, the presence of the vibration sensor 7 can be appealed, and the movement becomes dynamic and effective.
[0029]
On the other hand, the vibration smoothing output waveform 50b smoothed by the vibration signal smoothing means 8 is input to the control means 4 for detecting the boiling state of the object to be heated. Since the vibration smoothed output waveform 50b does not have a peak waveform as shown at the time of the external vibration input 50c, malfunction due to the presence of the peak waveform can be prevented.
[0030]
In this embodiment, the case where the level meter 9g is used as the second notification means has been described. However, the present invention is not limited to this. For example, a sound corresponding to the vibration intensity is output from the speaker 9e. You may. Further, the display of the raw vibration waveform can also be displayed on the level meter 9f on the side where the pot is not placed (the left side in FIG. 9). Therefore, even if the demonstration setting means 5b is turned on and operated with the pan 6 placed on only one side (the right side in FIG. 9), vibration display by external input vibration or the like can be displayed on both the level meters 9g and 9f. Become.
[0031]
Further, in the demonstration mode, the level meter 9g may display the raw vibration waveform even when the input to the heating means 1 is not performed, that is, even when the heating means 1 is inactive. By adopting such a configuration, there is no need to boil hot water, so that demonstration sales at stores can be facilitated.
[0032]
In this embodiment, the configuration as described above allows the vibration sensor 7 to detect an accurate boiling state. For this reason, by providing a device such as a level meter capable of displaying a boiling state and performing a demonstration at the time of in-store sales, it is possible to obtain a convincing demonstration effect for the customer, which can lead to a sales promotion effect. In addition, when the demonstration mode is switched by the demonstration setting means, the demonstration display is performed using the existing display device, so that there is no need to provide a special demonstration sales display device. Therefore, there is an effect that no component cost is required.
[0033]
In this embodiment, the case where the demonstration setting means 5b is provided has been described. However, the present invention is not limited to this, and may be realized by pressing a plurality of existing switches without providing a special switch. .
[0034]
Embodiment 3 FIG.
FIG. 10 is a plan view showing a case where the pot placed on the right side of the top plate is brought into a boiling state. In the above-described second embodiment, a case has been described where the speaker 9e is used as the first notification unit that notifies the boiling state of the object to be heated. In this embodiment, a case where a part of the level meter 9g is used as the first notification means will be described. This embodiment is a modification of the above-described second embodiment, and the same or corresponding parts as those in the second embodiment are denoted by the same reference numerals and description thereof is omitted.
[0035]
That is, when the right energizing coil 1 provided on the back side of the top plate 3 is in an active state as shown in FIG. 10, the control means 4 uses the vibration smooth output waveform 50b shown in FIG. Monitor the boiling state of things. Then, a time point near the maximum value of the vibration smoothing output waveform 50b and / or a point falling from the maximum value is detected as a boiling state and displayed on a part of the level meter 9g. The display using a part of the level meter 9g is performed by blinking the level 8 of the level meter 9g. For example, in the demonstration mode, the output of the raw waveform output means 7a is displayed on the level meter 9g in accordance with the eight levels of vibration intensity shown in FIG. 8, and when boiling is detected, the level of the level meter 9g is detected. By flashing 8, it is possible to report boiling. At this time, the level 8 of the level meter 9g may be flickered and sound may be emitted from the speaker 9e. With the above configuration, visibility can be improved.
[0036]
Embodiment 4 FIG.
FIG. 11 is a plan view of a cooking device provided with a smooth vibration level display means. In the above-described second embodiment, a case has been described in which both the level meters 9g and 9f are used as the second notification means for notifying the state of vibration transmitted to the heating cooker main body. In the fourth embodiment, a case will be described in which only one level meter 9g is used as the second notification means, and the other level meter 9f is used as the smooth vibration level display means. That is, the level meter 9f of the heating cooker according to this embodiment is configured to display the level of the vibration smoothing output waveform 50b of FIG. 8 according to eight levels of vibration intensity. On the other hand, the level meter 9g displays the level of the raw vibration waveform 50a shown in FIG. 8 according to eight levels of vibration intensity, as in the second embodiment.
[0037]
As a result, the level meter 9f of the heating cooker according to the present embodiment performs the level display according to the vibration smoothing output waveform 50b, so that the level display gradually increases with the start of the heating. Does not respond too sensitively when given. This is in contrast to the level meter 9g which responds sensitively to the external vibration 50c. FIG. 11 is a plan view of the cooking device immediately after the input of the external vibration 50c. The display of the level meter 9f is stabilized at level 2 by the input of the external vibration 50c shown in FIG. The display of the level meter 9g lights up to level 7.
For this reason, by comparing the two level meters 9g and 9f during the demonstration, the presence of the vibration sensor can be appealed to the customer by the level meter 9g, and the level meter 9f enables highly accurate boiling detection without malfunction. This has the effect of being able to explain that
[0038]
Embodiment 5 FIG.
FIG. 12 is a cross-sectional view showing a state where a pot is placed on the heating cooker according to Embodiment 5 of the present invention. FIG. 13 is a graph showing the output of the vibration signal smoothing means according to the fifth embodiment. The same or corresponding parts as those in the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.
The heating cooker according to this embodiment includes a cooling fan 10 as a blower for preventing heating of the energized coil 1 inside. The cooling fan 10 operates according to a control command from the control unit 4. In the present embodiment, after receiving a heating start command to the heating means 1, the cooling fan 10 is first energized (activated) for a predetermined period, and then energized (activated) to the energizing coil 1.
[0039]
By the operation of the cooling fan 10, the rotation speed component is transmitted to the housing 2, and the housing 2 vibrates. This vibration is detected by the vibration sensor 7 and detected as a signal intensity. At this time, since the vibration of only the cooling fan 10 can be detected by operating the cooling fan 10 alone, the vibration level of the cooling fan 10 can be checked. That is, when the fan does not operate due to the disconnection of the cooling fan 10, the vibration intensity cannot be detected. Therefore, the vibration intensity is detected, an error is displayed, and the operation is stopped without shifting to the energization of the energizing coil 1. Also, when the vibration of the cooling fan 10 is larger than the allowable output (see FIG. 13), an error is displayed as a fan failure and the operation is stopped without shifting to the energization of the energizing coil 1. The error display can be displayed, for example, by blinking all the level displays of the level meter 9g. In this case, the level meter 9g corresponds to a warning notification unit.
[0040]
With the configuration described above, the heating cooker according to the present embodiment can determine the failure of the blower with a simple configuration and prevent the heating of the energizing coil 1 before it occurs.
[0041]
In this embodiment, the case where the energizing coil 1 is deactivated and only the cooling fan 10 is activated for a predetermined period has been described. However, the present invention is not limited to this. In a state where the energizing coil 1 is kept activated during the above-mentioned predetermined period, only the frequency band of the blowing means 10 is extracted by Fourier transform or the like to confirm whether there is any abnormality. You can do it. By setting the predetermined period to a short period after the activation of the energizing coil 1 and the blowing means 10 and before the start of boiling, the cooling fan 10 is activated in a state where both the energizing coil 1 and the cooling fan 10 are activated. You can also check for abnormalities.
[0042]
Furthermore, even within the allowable vibration range of the cooling fan 10, the vibration level may vary. In such a case, the detection threshold of the boiling vibration can be changed according to the fan vibration intensity. By changing the threshold value, accurate vibration detection and boiling detection can be enabled.
[0043]
【The invention's effect】
A heating cooker according to the present invention has a top plate on which a heating container is placed, and a heating cooker body for heating and cooking an object to be heated in the heating container by a heating means; and a vibration transmitted to the heating cooker body. It comprises a vibration sensor for detecting the level, and a notifying means capable of notifying the boiling state of the object to be heated in the heating vessel in two or more forms based on the output of the vibration sensor. It is possible to provide a heating cooker capable of notifying the state of the object to be heated in the heating container without being affected by the temperature.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a state in which a pot is placed on a heating cooker according to Embodiment 1.
FIG. 2 is a plan view showing a state in which a pot is placed on the cooking device according to Embodiment 1.
FIG. 3 is a schematic diagram showing a waveform smoothed by a vibration signal smoothing means 8;
FIG. 4 is a plan view showing the state of the pot when the boiling display means 9b is turned on.
FIG. 5 is a plan view showing the state of the pot when the large boiling display means 9c is spotted.
FIG. 6 is a plan view showing a state in which a pan is placed on the heating cooker according to Embodiment 2 of the present invention.
FIG. 7 is a cross-sectional view showing a state in which a pot is placed on the heating cooker according to Embodiment 2 of the present invention.
FIG. 8 is a diagram showing a raw waveform of the vibration sensor 7 and a waveform after smoothing.
FIG. 9 is a conceptual diagram showing an external vibration input to the heating cooker.
FIG. 10 is a plan view showing a case where a pot placed on the right side of the top plate is brought into a boiling state.
FIG. 11 is a plan view of a heating cooker provided with smooth vibration level display means.
FIG. 12 is a cross-sectional view showing a state in which a pan is placed on a heating cooker according to Embodiment 5 of the present invention.
FIG. 13 is a graph showing an output of a vibration signal smoothing unit according to the fifth embodiment.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 energizing coil, 2 housing, 3 plate, 4 control means, 5 operation panel, 5 a switch, 5 b demonstration switching means, 6 pan, 7 vibration sensor, 7 a raw waveform output means, 8 vibration signal smoothing means, 9 display panel, 9a Input setting display, 9b Boiling display, 9c Large boiling display, 9d Speaker, 10 Cooling fan

Claims (10)

A heating cooker main body having a top plate for mounting the heating container thereon, and heating and cooking an object to be heated in the heating container by heating means; and a vibration sensor for detecting a vibration level transmitted to the heating cooker main body. And a notifying means for notifying the boiling state of the object to be heated in the heating container in two or more forms based on the output of the vibration sensor. The two forms of boiling state are notified in the vicinity of the time when the vibration level from the start of boiling reaches the maximum value, and the second form is notified in the process of decreasing the vibration level via the maximum value. The cooking device according to claim 1, further comprising a boiling state. A heating cooker main body having a top plate for mounting the heating container thereon, and heating and cooking an object to be heated in the heating container by a heating means; and a vibration sensor for detecting a vibration level transmitted to the heating cooker main body. Demonstration setting means capable of switching from a normal mode to a demonstration mode, and input setting display means for displaying a heating input setting level for the heating means in the normal mode,
When the demonstration mode is selected by the demonstration setting unit, the input setting display unit switches to a vibration level display unit that displays a state of vibration transmitted to the heating cooker main body based on an output of the vibration sensor. Cooking device characterized by things. The heating cooker according to claim 3, wherein the vibration level display means in the demonstration mode is operable even when the heating means is inactive. A heating cooker main body having a top plate for mounting the heating container thereon, and heating and cooking an object to be heated in the heating container by heating means; and a vibration sensor for detecting a vibration level transmitted to the heating cooker main body. Vibration signal smoothing means for smoothing the output of the vibration sensor, first notification means for detecting and informing the boiling state of the object to be heated based on the signal smoothed by the vibration signal smoothing means, A heating cooker comprising: a second notifying means for notifying a state of vibration transmitted to the heating cooker main body based on an output of the vibration sensor which has not been smoothed by the vibration signal smoothing means. It has a smooth vibration level display means for displaying a signal smoothed by the vibration signal smoothing means, and the second notification means is configured as a vibration level display means which can be compared with the smooth vibration level display means. The heating cooker according to claim 5, wherein The cooking device according to claim 5, wherein the second notification unit is operable even when the heating unit is inactive. A heating cooker main body having a top plate for mounting the heating container thereon, and heating and cooking an object to be heated in the heating container by heating means; and a vibration sensor for detecting a vibration level transmitted to the heating cooker main body. A blowing means for cooling the heating means, and a warning for activating the blowing means for a predetermined period and notifying an error when the output intensity of the vibration sensor is below a predetermined value or above a predetermined value within the predetermined period. A heating cooker comprising a notifying means. 9. The cooking device according to claim 8, wherein the heating unit is inactive during the predetermined period. The predetermined period is a period in which, after a command for starting heating is issued to the heating cooker, the activation of the heating unit is delayed to activate only the blowing unit, and the error notification is performed. The heating cooker according to claim 9, wherein the activation of the heating means is not performed when the heating is performed.

Images