JP3967689B2 - Cooking device and heating control method. - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cooking device and a heating control method.
[0002]
[Prior art]
Conventionally, in order to protect the fluororesin coating, there has been a cooker that controls the heating temperature of the cooker below the durable temperature of the fluororesin coating.
For example, in a rice cooker having a dedicated kettle and a heat sink covering the upper surface, the resin coating is protected by applying a fluorine coating to the heat sink and keeping the temperature of the heat sink below the durable temperature of the fluororesin. (Patent Document 1).
[0003]
[Patent Document 1]
JP-A-9-164066 (paragraph 0039, FIG. 1)
[0004]
[Problems to be solved by the invention]
However, the conventional rice cooker as described above protects the fluororesin coating of the cooker itself, and does not heat general-purpose cookers such as frying pans and pans.
In addition, induction heating cookers are becoming widespread at present, but even when it is assumed that the above-described heating control for protecting the fluororesin coating is applied to such a cooker, as described below. There's a problem.
[0005]
That is, in the heating control as described above, the upper limit temperature of the heating is controlled to be equal to or lower than the durable temperature of the fluororesin (in this example, 250 ° C.), thereby preventing the characteristic deterioration of the fluororesin. However, this temperature cannot be said to be a preheating temperature (preheating temperature) sufficient for grilled foods and fried foods, which is a general cooking method for fluororesin processing equipment. In the first place, it is necessary to suppress the outflow of umami components inside the ingredients in order to improve the taste in the cooking of the grilled food. Therefore, it is necessary to confine the umami component by quickly baking and hardening the surface of the food (for example, when grilling steak) or by quickly changing the moisture and oil on the surface of the food (for example, fried rice, fried vegetables). Because of these cooking characteristics, it is common for cooking utensils used for grilled foods and fried foods to raise the temperature of the utensils in an empty state before adding the ingredients so that the heating starts immediately after the ingredients are added (preheating). For example, the initial temperature of the cooking utensil necessary for cooked rice is 300 ° C. or higher. Another characteristic is that a high temperature of 300 ° C. or higher is required only when the food is first introduced. After suppressing the component outflow by heat processing on the surface of the food, it is common to shift to heating at a temperature of 200 ° C. in order to stop the inside of the food while suppressing the progress of excessive charring.
Considering the situation of cooking as described above, when the conventional overheating prevention control of fluororesin protection is applied to a heating cooker, the temperature of the device such as a frying pan is suppressed to a relatively low temperature below the fluororesin durability temperature. Therefore, there is a problem that it is not suitable for cooking that requires high temperature such as stir-fried foods and grilled foods.
In addition, as a common sense of cooking utensils, cooking utensils with non-stick processing such as fluorine processing must not use metal spatula for coating protection, and it is unsuitable for high temperature cooking from 180 It was said that it must be used at temperatures below 200 ° C.
The present invention has been made to solve such problems, and to obtain a heating cooker suitable for cooking at a high temperature while protecting the coating of the cooking utensil and a heating control method suitable for protecting the coating of the cooking utensil. It is an object.
[0006]
[Means for Solving the Problems]
The heating cooker according to the present invention includes a heating unit that heats the cooking utensil, a selection unit that selects whether or not to use a preheating pattern that is a temperature change pattern during preheating, and the preheating based on a selection result of the selection unit. Control means for controlling the heating means based on the preheating pattern when a pattern is selected, and for controlling the heating means based on another heating pattern if not selected It is.
[0007]
The heating control method of the present invention is a heating control method in which the control means heats the cooking utensil by controlling the output of the heating means of the heating cooker, and is used for the cooking utensil under the control of the control means. A first heating step of heating the cooking utensil to a temperature below the melting point temperature of the coating material and exceeding the endurance temperature; and after completion of the first heating step, the temperature of the cooking utensil is within a continuous use temperature range equal to or lower than the endurance temperature. And a second heating step that is maintained.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
Next, Embodiment 1 of the present invention will be described. In this embodiment, an example of an induction cooking device will be described as a cooking device. FIG. 1 is an overview of the heating cooker according to the first embodiment, and FIG. 2 is a functional block diagram showing various circuits. An output adjustment knob 2 is provided on the front surface of the casing 1 of the heating cooker, and the output (thermal power) can be adjusted by the cook adjusting the knob. On the upper surface of the housing 1, a display unit 3 for displaying the output and the preheating completion time, a heating unit 4 for heating cooking utensils such as a frying pan, and a cooker are displayed on the upper surface of the casing 1 by a display device such as a light emitting diode or a liquid crystal display device. A button 5 for selecting a preheating mode is provided.
[0009]
On the other hand, as shown in FIG. 2, a heater 12 that performs induction heating, a heater control circuit 11 that controls a current supplied to the heater 11, and a controller that controls the heater control circuit 11 and other circuits are provided inside the housing 1. 10, and the cooking utensil is heated based on the control of the control unit 10. The control unit 10 is connected to an I / O controller 13 (Input Output Controller) that performs interface processing between various elements and the control unit 10, and the I / O controller 13 is used to measure the temperature of the cooking utensil. In addition to the sensor 14, the button 5, and the output adjustment knob 2, the input / output signals of the switch 15 of the main power source are controlled.
[0010]
Next, based on FIG.3 and FIG.4, operation | movement of this heating cooker is demonstrated. First, when the power is turned on to start cooking (step S1), the control unit 10 checks the selection of the heating mode by the cook. Here, when the button 5 is pressed by the cook as selection means, mode 2 is selected, and the control unit 10 controls the heater 12 in the preheating mode (step S3). On the other hand, when the button 5 is not pressed, the control unit 10 controls the heater 12 in the normal operation mode (step S4).
[0011]
Here, the heating control in the preheating mode and the normal operation mode is different as shown in FIG.
First, in the normal operation mode, as indicated by a broken line t2, the temperature of the cooking utensil increases from the start of cooking, and when the limiter activation temperature TL1 is reached, the temperature increase stops. That is, the cooking utensil temperature is controlled to be equal to or lower than the temperature TL1 (overheating prevention function by the control unit 10). The output P2 of the heater 12 at this time changes like a line marked with a triangle mark in the figure, and the control unit 10 outputs almost 100% from the start of cooking until the temperature reaches the limiter activation temperature TL1 (or The heater 12 is controlled to produce a high output. When the controller 10 detects that the temperature has reached the limiter activation temperature TL1 based on a signal from the temperature sensor 14, the controller 10 reduces the output of the heater 12 based on the signal from the temperature sensor 14, and thereafter the temperature is equal to or lower than the limiter activation temperature TL1. Adjust the output so that
In this normal operation mode, since the heating pattern having the temperature change as described above is used, it is suitable for dishes that do not require a high temperature such as fried foods, for example, boiled foods.
[0012]
On the other hand, in the preheating mode, the control unit 10 controls the heater 12 so that the temperature of the cooking utensil temporarily exceeds the limiter activation temperature TL1. In FIG. 4, the temperature in the preheating mode is indicated by a solid line t1, and the output P1 of the heater 12 is marked with a circle. As shown in the figure, during the preheating time (from the start of cooking to a predetermined time), even if the temperature of the cooking utensil becomes equal to or higher than the limiter activation temperature TL1, the control unit 10 does not perform temperature limitation based on the limiter activation temperature TL1, Allow cooking utensils to rise in temperature. Then, after a preheating temperature equal to or higher than the limiter activation temperature TL1 continues for a predetermined time (for example, 10 seconds to 30 seconds), the control unit 10 decreases the output of the heater 12 so that the temperature of the cooking utensil is decreased to the limiter activation temperature TL1 or less. Thereafter, the output is controlled so that the cooking utensil temperature becomes equal to or lower than the limiter activation temperature TL1 (overheating prevention function). As described above, in the preheating mode, a preheating pattern is used in which the temperature of the cooking utensil is changed so as to once heat at a high temperature during preheating and then return to the normal temperature. Therefore, the preheating mode is suitable for cooking at a relatively high temperature such as a fried food.
[0013]
In the above description, the output adjustment knob 2 is instructed to output 100% in a so-called idle state. However, the control unit 10 follows the instruction of the output adjustment knob 2 except for the preheating time in the preheating mode. Adjust the output.
Finally, when cooking is finished and the switch 15 is turned off by the cook, cooking is finished (step S5).
[0014]
As described above, in the heating cooker according to this embodiment, the heating mode at the time of preheating is switched according to the selection result of the selection means, so that heating according to the cooking utensil or the cooking method is performed by selecting the heating mode. Can do.
Also, in the preheating mode, the cooking utensil is temporarily heated above the limiter temperature, so that high temperature cooking is possible, and a cooking device suitable for cooking that requires high temperature in the early stages of cooking, such as fried foods and grilled foods, is obtained. Can do.
[0015]
Moreover, the lifetime of a cooking appliance can also be extended by lowering | hanging temperature so that it may become below a limiter temperature after predetermined time. For example, in a cookware that has been processed with resin, if a temperature range that is higher than the endurance temperature is used for a long period of time, the deterioration of the characteristics of the fluororesin is accelerated from the point where it exceeds a certain time, and the life of the cookware is shortened. Become. On the other hand, if the time is relatively short, there will be no dramatic deterioration of properties, and unlike cooking at high temperatures for a long time, the resin properties can be restored by lowering the temperature, thus extending the life of the cooking utensil. be able to.
[0016]
Embodiment 2. FIG.
The second embodiment is an example of a heating cooker that starts automatic operation in the preheating mode when the cook presses the button 5 and informs the cook of the timing at which preheating reaches an appropriate temperature.
FIG. 5 is a flowchart showing the heating control process in the second embodiment. First, when the switch 15 is turned on and the power is turned on (step S11), the control unit 10 checks whether the button 5 is pressed (step S12). If the button 5 has been pressed, the control unit 10 starts automatic operation and issues a command to operate the heater 12 at the maximum output (automatic output setting, step S13). Here, it may be displayed on the display unit 3 or the like that the vehicle is operating in the preheating mode.
[0017]
Next, the control unit 10 predicts the time to reach the set temperature in the preheating mode, waits until the set temperature is reached or until a predetermined time before the set temperature is reached, and continues heating (step S14). Here, when the set temperature is reached, it may be predicted that a predetermined time has elapsed from the start of cooking, or may be predicted from the rate of temperature increase or the actual measurement value detected by the temperature sensor 14.
[0018]
Next, the control part 10 alert | reports to a cook the timing which reaches preset temperature (step S15). The notification is performed by changing the lighting state of the display unit 3, but may be performed by outputting a buzzer (not shown) or synthesized speech from a speaker. Further, the notification may be performed by a method in which notification is intermittently performed in a countdown format from several seconds to several tens of seconds before reaching the set temperature, as shown in FIG. The countdown may be performed from the start of the preheating mode to the completion of the preheating (in this case, the standby process in step S14 is not performed).
[0019]
When the notification is completed, the control unit 10 decreases the output of the heater 12 (step S17). For example, by controlling the output to 40 to 50% or adjusting the output according to the output of the temperature sensor 4, for example, a process for holding the limiter activation temperature of 260 ° C. is performed. In addition, the output control process and preheating pattern at the time of the preheating mode of step S13 and step S17 are as having shown in FIG.
[0020]
When the output reduction process ends, the control unit 10 turns off the display during the preheating mode operation displayed on the display unit 3 and the like, and cancels the automatic operation.
Next, the control unit 10 checks whether or not the output adjustment knob 2 has been adjusted. If not, the control unit 10 continues the output (step S20). Return to the state (step S21).
On the other hand, if the operation of the output adjustment knob 2 has been performed, the operation shifts to the normal operation mode, and the operation is performed with the output in accordance with the setting of the output adjustment knob (step S23). The output adjustment in the normal operation mode is also as shown in FIG. 4 as in the preheating mode.
[0021]
If the button 5 is not pressed in step S12, the control unit 10 detects whether the output adjustment knob 2 has been adjusted (step S22). Here, when the operation is not performed, the process returns to step S12, and when the adjustment is performed, the operation in the normal operation mode is started according to the instruction of the knob 2 (step S23).
[0022]
FIG. 7 is an example showing a preheating pattern in the preheating mode. Here, the cooking utensil to be heated is coated with a fluororesin (polytetrafluoroethylene: PTFE), the durable temperature that can be continuously used is 260 ° C., and the melting point at which the resin starts to soften is 327 ° C. The thermal decomposition temperature at which thermal decomposition begins is 390 ° C.
Here, the temperature below the endurance temperature is a region where continuous use is possible, and even if the cooking utensil is used in this temperature range for a long time, it is a temperature region where the characteristics are hardly deteriorated and a long life is obtained. This temperature range is described as the continuous use temperature range in the instruction manual of the cooking utensil, etc., so a careful cook until now should be careful not to exceed the endurance temperature during cooking, and usually below medium heat I tried to cook.
[0023]
The temperature range from the temperature exceeding the endurance temperature to below the melting point is a temperature range that can be used intermittently, can exhibit the characteristics of the fluororesin during cooking, and can sufficiently suppress damage to the fluororesin if used for a short time. .
When the temperature is equal to or higher than the melting point (softening temperature region), softening of the fluororesin starts and the fluororesin is easily damaged. Therefore, no measures are taken against scratches, and when the cooker uses a spatula or the like during cooking, the life of the cooking utensil can be extended by not using this temperature region.
Above the thermal decomposition temperature (thermal decomposition temperature region) is a temperature at which permanent changes in the fluororesin characteristics occur due to thermal decomposition, and once changed, the characteristics will not be restored even if the temperature is lowered. In addition, gas may be generated, which is a temperature range that should not be used with cooking utensils coated with PTFE.
Moreover, the period shown to AC is preheating time, and the driving | operation of the preheating mode is performed for about 60 second-70 second. Here, the limiter activation temperature TL1 is a durable temperature of 260 ° C.
[0024]
Next, a heating pattern will be described.
When heating is started, there is some error depending on the material of the cooking utensil, but in the preheating mode, the temperature t1 of the cooking utensil gradually increases from the start of heating and passes through the continuous usable temperature range for about 40 seconds to The durability temperature (260 ° C) or higher is reached in 50 seconds (point B). Here, the temperature of the preheating time is suppressed to an intermittent usable temperature range (temperature exceeding the durable temperature 260 ° C. to melting point 327 ° C.). When the temperature exceeds the melting point, the fluororesin begins to soften, and the resin becomes soft, so that the coating is easily damaged and easily peeled off. Therefore, in the preheating mode, the output of the heater 12 is controlled so that the temperature of the cooking utensil is at an initial temperature sufficient for cooking of grilled food and fried food and in a temperature range in which the coating is not damaged. This control is executed when the controller 10 adjusts the output of the heater 12 based on the output of the temperature sensor 14 or by the preset output setting of the heater 12. The program, the preheating pattern in the preheating mode, the heating pattern in the normal mode, the heater output pattern, and the like are stored in the memory of the control unit 10.
[0025]
On the other hand, in the intermittently usable temperature range, the temperature is close to the melting point, so that if used for a short time, the characteristics of the fluororesin can be maintained and the damage to the resin can be sufficiently suppressed practically. When used for a long time, the fluororesin begins to hurt and shorten the life. Therefore, after the initial stage of cooking such as stir-fried food or grilled food is completed as preheating, the control unit 10 automatically performs control with the output suppressed and gradually decreases the temperature t1 (shown by D in FIG. 7). period). (For reference, the change in temperature t3 when there is no output limiter based on the endurance temperature is also shown in FIG. 7).
[0026]
By performing the heating control as described above, it is possible to achieve both a sufficient temperature required for fried foods, grilled foods, and the like and a longer life of the cooking utensil.
In particular, in the intermittent usable temperature range used for the preheating time, a sufficient temperature can be obtained for the stir-fried food and grilled food, so the surface of the food can be quickly baked as described above (for example, when steak is baked) There is an effect that the umami component can be confined by quickly changing the surface moisture and oil (for example, fried rice, fried vegetables).
In addition, after the initial stage of cooking such as baking is finished, the control unit 10 automatically reduces the temperature of the cooking utensil to a temperature range in which continuous use is possible. The life of the instrument can be extended.
[0027]
In the second embodiment, the preheating time is set to about 60 to 70 seconds. However, any time setting may be used as long as the damage can be suppressed according to the characteristics of the resin. Further, the temperature setting after the preheating time has elapsed is not limited to 260 ° C., and a temperature setting lower than that can be set. For example, the upper limit may be 180 ° C. to 200 ° C. necessary for general cooking, and the temperature may be adjusted to the set value of the temperature adjustment knob 2.
[0028]
Embodiment 3 FIG.
In the first and second embodiments, the heating control is performed to suppress the cooking utensil temperature below the limiter activation temperature TL1 in the normal operation mode. However, in the third embodiment, the temperature range exceeding the limiter activation temperature TL1 in the normal operation mode. Is used, and the heating control is performed so that the limiter activation temperature TL1 or lower is used in the coating protection mode. Moreover, the heating control which suppresses the damage of a cooking appliance is performed by restraining the temperature increase rate of preheating time lower than normal operation mode.
Since the hardware configuration of the third embodiment is basically the same as that of the first embodiment, different parts will be described with reference to FIGS.
[0029]
Similar to the processing of FIG. 3, when the cook selects the coating protection mode by the selection means (button 5), the control unit 10 detects this and starts the operation of the coating protection mode (step S31). In this coating protection mode, as shown by t1 in FIG. 9, the temperature increase rate from the start of heating is suppressed to be lower than the temperature increase rate in the normal mode. The control unit 10 instructs the heater 12 to output an output P1 lower than the maximum output P2 in the normal mode, and controls the temperature increase rate to be relatively low as described above. When the cooking utensil temperature approaches the limiter activation temperature TL1, the control unit 10 reduces the output of the heater 12 and performs control so that the temperature falls within the durable temperature. At this time, as shown in FIG. 4, the temperature can be controlled by a continuous change of the output, and as shown in FIG. 9, the output P2 is intermittently turned ON / OFF to control the temperature. It doesn't matter.
[0030]
When the normal mode is selected by the selection unit, the control unit 10 controls the output of the heater 12 so that the temperature increase rate is higher than that in the protection mode, as indicated by t2 in FIG. At this time, the temperature t2 can be set to a temperature exceeding the durable temperature of the coating according to the setting of the output adjustment knob. This normal operation mode is effective when using an iron pan or the like that does not cause damage to the coating, and can cook fried foods and grilled foods at high temperatures.
[0031]
As described above, according to the third embodiment, cooking at a high temperature and protection of the coating can be realized. Moreover, in the coating protection mode, damage and peeling of the coating can be effectively suppressed by suppressing the temperature rise from the start of cooking. Usually, the coating of cooking utensils applies a coating material having a different coefficient of thermal expansion on the surface of the base metal. The material is easily peeled off. In particular, in induction heating cookers, the base metal part is first heated more rapidly than when a gas stove is used, and this heat gradually propagates to the coating material. The difference in temperature difference and expansion coefficient increases. Therefore, the coating tends to peel off when heated normally. However, when heating slowly as in this embodiment, the temperature difference from the base becomes small and the coating is difficult to peel off. The same can be said for other cookers, but the tendency is particularly effective for induction cookers.
[0032]
In the above description, the temperature increase rate in the protection mode is set lower than the maximum temperature increase rate in the normal mode. However, the output basically follows the setting of the output adjustment knob 5, and the temperature increase rate is When it is predicted that the value will be greater than or equal to a predetermined value, the output may be controlled to be suppressed.
Moreover, when aiming at the effect of protecting the coating by suppressing the rate of temperature rise, it is not essential that a temperature higher than the protection mode (durable temperature or higher) can be used in the normal mode.
The temperature sensor 14 measures the temperature of the cooking utensil, but if the heating is rapid, the measured value may be lower than the actual cooking utensil temperature due to the heat propagation speed or the like. There is. In such a case, the temperature rises too much and damages the coating, but if the rate of temperature rise is moderated as in this embodiment, the actual temperature of the cooking utensil and the measured value (predicted value) The error is reduced and overheating can be effectively suppressed.
[0033]
Embodiment 4 FIG.
The fourth embodiment is the same as the third embodiment in that the rate of temperature increase is suppressed in the preheating mode, but further includes a notification function that notifies the cooking timing.
The operation of the fourth embodiment will be described with reference to FIG. Since the basic operation is the same as that in FIG. 5, the description will focus on the different parts. The coating material is a fluororesin (PTFE) as in the second embodiment.
[0034]
When the power is turned on and the button 5 is pressed (step S21), the control unit 10 controls the output of the heater 12 so that the rate of temperature increase is lower than that in the normal operation mode as described in the third embodiment. (Step S31). Then, the temperature of the cooking utensil is predicted, and the cook is notified of reaching the set temperature (steps S4 to S6). At this time, as shown in FIG. 11, the temperature t1 is a temperature region in which intermittent use is possible (however, the temperature increase rate is low). Moreover, since the cook can know the input timing of food by notification, it is very convenient.
[0035]
When the preheating time has passed, the temperature is lowered to the continuously operable region as described in the second embodiment, and cooking at a high temperature is possible while protecting the fluororesin. In this example, the temperature is lowered to about 180 ° C., which is a durable temperature of 260 ° C. or less, and is controlled so that the temperature does not rise any further.
On the other hand, when the button 5 is not pressed in step S2 and the normal operation mode is started, the control unit 10 controls the heater 12 so that the temperature increase rate is higher than the temperature increase rate in step S31. (Step S121). This enables high speed heating. The maximum temperature at this time is set similarly to the maximum temperature after elapse of the preheating time in the preheating mode, as indicated by t2 in FIG. The set temperature is not limited to this, and may be set to a high temperature (durable temperature or higher) as shown in FIG.
Further, when the cooking utensil reaches the set temperature in step S121, it may be notified in the same manner as in the preheating mode (steps S4 and S5).
[0036]
As described above, according to the present invention, since the rate of temperature increase is suppressed by mode selection, damage to a resin coating such as a fluororesin can be effectively suppressed. In addition, since the input timing of the ingredients is notified, even if the time to reach the appropriate temperature changes due to the difference in the rate of temperature rise, the cook does not have to hesitate.
[0037]
Although the embodiment of the present invention has been described above, the present invention is not limited to the above description, and various modifications can be made without departing from the spirit of the present invention.
For example, the cooking device is not limited to the induction cooking device, and other cooking devices (for example, a gas stove) may be used.
Further, in the first and second embodiments, the preheating mode and the normal operation mode are switched by the selection means. However, the selection means is not necessarily required from the viewpoint of coexistence of coating protection and high temperature cooking. It does not matter if it operates in the preheat mode.
Further, a heating pattern that normally operates in a mode capable of protecting the coating and is not conscious of coating protection when selected by the selection means may be used.
The selection means is not limited to the button 5, and other devices can also be used. In order to make it easy for the cook to understand, in addition to “preheating”, the selection means has a mode to protect the coating such as “fluorine processing”, “coating protection”, “stir fry”, “baked goods”, “slow heating”, etc. It may be displayed for selection. On the other hand, to select other modes, display “soup”, “boiled”, “iron pan”, “rapid heating”, “stir fry” (when selecting the normal mode in FIG. 9), etc. Also good.
Further, the selection means may not be selected each time, and the mode may be set by default, or may be automatically set when the type of cooking utensil can be recognized.
[0038]
The notification by the notification means is various, such as a visual notification device such as a liquid crystal display device, an EL (Electro Luminescence) display, a notification device by a speaker, a buzzer, a device that notifies when a form such as a knob pops out, etc. Can be used.
In addition to the limiter activation temperature TL1 set below the endurance temperature, a temperature exceeding the endurance temperature and below the melting point or the thermal decomposition temperature of the coating material can be selected and set as the limiter activation temperature TL2. . For example, the control unit 10 monitors the output value of the temperature sensor 14, and based on this output value (for example, when the output value is equal to or higher than a predetermined value, or a predicted temperature value considering the rate of temperature increase, etc.) Based on this, the output of the heater 12 is adjusted so that the temperature of the cooking utensil becomes lower than the limiter activation temperature TL2 including the preheating mode and the normal mode. Thereby, damage to a cooking appliance can be prevented.
[0039]
The preheating time is not necessarily 60 to 70 seconds, and the time can be appropriately changed within the intermittent use time of the coating material.
In the drawings, the same reference numerals represent the same or corresponding parts.
[0040]
【The invention's effect】
Since the present invention is configured as described above, the coating of the cooking utensil can be protected.
[0041]
[Brief description of the drawings]
FIG. 1 is a perspective view of a heating cooker according to Embodiment 1 of the present invention.
FIG. 2 is a functional block diagram of a cooking device according to Embodiment 1 of the present invention.
FIG. 3 is a flowchart of heating control according to the first embodiment of the present invention.
FIG. 4 is a characteristic diagram showing a heating pattern according to the first embodiment of the present invention.
FIG. 5 is a flowchart of heating control according to Embodiment 2 of the present invention.
FIG. 6 is a diagram showing a display pattern of a display unit according to Embodiment 2 of the present invention.
FIG. 7 is a characteristic diagram showing a heating pattern according to Embodiment 2 of the present invention.
FIG. 8 is a flowchart of heating control according to Embodiment 3 of the present invention.
FIG. 9 is a characteristic diagram showing a heating pattern according to the third embodiment of the present invention.
FIG. 10 is a flowchart of heating control according to Embodiment 4 of the present invention.
FIG. 11 is a characteristic diagram showing a heating pattern according to Embodiment 4 of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Housing | casing, 2 Output adjustment knob, 3 Display part, 4 Heating part, 5 Button, 10 Control part, 11 Heater control circuit, 12 Heater, 13 I / O controller, 14 Temperature sensor, 15 Switch

Claims (17)

Heating means for heating the cooking utensil using the coating material ;
A selection means for selecting whether or not to use a preheating pattern that is a temperature change pattern during preheating;
Based on the selection result of the selection means, when the preheating pattern is selected, the heating means is controlled based on the preheating pattern, and when not selected, the heating means is controlled based on another heating pattern. Control means for controlling the means;
Bei to give a,
The control means has an overheating prevention function for controlling the output of the heating means so that the temperature of the cooking utensil is equal to or lower than the durable temperature of the coating material, and based on the determination result of the selection means, the durability A heating cooker characterized by temporarily using a temperature range above the temperature and controlling the heating means to use a temperature range equal to or lower than the endurance temperature after a predetermined time has elapsed . A temperature sensor for measuring the temperature of the cooking utensil heated by the heating means;
  The overheating preventing function of the control means controls the output of the heating means so that the temperature of the cooking utensil measured by the temperature sensor is equal to or lower than the durable temperature of the coating material of the cooking utensil. Item 10. The heating cooker according to item 1. Informing means controlled by the control means,
The said control means makes the said alerting | reporting operation | movement perform the alerting | reporting operation, when the said temperature becomes more than the predetermined preheating temperature based on the temperature of the said cooking utensil. Cooking device.   The cooking device according to claim 3, wherein the notification unit notifies the timing until the cooking utensil reaches the preheating temperature in a stepwise manner. Comprising input means for setting the output level of the heating means;
The control means automatically sets the output level to a predetermined value when a preheating pattern is selected by the selection means, and sets the output level set by the input means when not selected. The heating cooker according to any one of claims 1 to 4, wherein a heating pattern is used based on the heating pattern. The preheating pattern, the heating cooker according to claim 1, characterized in that the pattern of the preheating temperature is a temperature below the melting point temperature than the endurance temperature of the fluororesin.   The cooking device according to any one of claims 1 to 6, wherein the control means controls the heating pattern using a melting point temperature of a fluororesin as the upper limit temperature.   The cooking device according to any one of claims 1 to 7, wherein the preheating pattern is a pattern having a lower temperature increase rate than the other heating patterns. The cooking device according to any one of claims 1 to 8, wherein the heating means heats the cooking utensil by electromagnetic induction heating. The control means is a heating control method for heating the cooking utensil using the coating material by controlling the output of the heating means of the heating cooker,
A first heating step of heating the cooking utensil so that the temperature is lower than the melting point temperature of the coating material used for the cooking utensil and exceeding the endurance temperature under the control of the control means;
A heating control method comprising: a second heating step for maintaining the temperature of the cooking utensil within a continuous use temperature range equal to or lower than the durable temperature after the completion of the first heating step. Based on the temperature information of the cooking utensil, comprising a notification step of notifying the timing when the temperature of the cooking utensil is in a temperature range below the melting point temperature and above the endurance temperature,
The heating control method according to claim 10 , wherein the second heating step is executed after the notification of the notification step. The heating control method according to claim 10 or 11 , wherein, in the first step, the control means sets the temperature of the cooking utensil to more than 260 ° C and less than 327 ° C. Heating means for heating the cooking utensil using the coating material;
  After the cooking utensil is temporarily heated so that the temperature of the cooking utensil is below the melting point temperature of the coating material of the cooking utensil and above the endurance temperature, the temperature of the cooking utensil is equal to or lower than the endurance temperature. Control means for controlling the heating means;
A heating cooker comprising: Informing means for informing the timing when the temperature of the cooking utensil is lower than the melting point temperature and exceeding the endurance temperature,
  The cooking device according to claim 13, wherein the control unit controls the heating unit to use a temperature range equal to or lower than a durable temperature of the cooking utensil after the notification unit notifies. The control means controls the heating means to temporarily heat to a temperature above 260 ° C. and below 327 ° C. as a temperature below the melting point temperature of the coating material of the cooking utensil and above the endurance temperature. The cooking device according to claim 13 or 14. A temperature sensor for measuring the temperature of the cooking utensil heated by the heating means;
  The control means temporarily heats the cooking utensil so that the temperature of the cooking utensil measured by the temperature sensor is lower than the melting point temperature of the coating material of the cooking utensil and exceeds the endurance temperature, and then the temperature. The cooking device according to any one of claims 13 to 15, wherein the heating means is controlled so that a temperature of the cooking utensil measured by a sensor is equal to or lower than the durable temperature. The cooking device according to any one of claims 13 to 16, wherein the heating means heats the cooking utensil by electromagnetic induction heating.

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